/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3;
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import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
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import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
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import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
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import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
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import static com.android.launcher3.LauncherState.ALL_APPS;
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import static com.android.launcher3.LauncherState.NORMAL;
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import static com.android.launcher3.LauncherState.SPRING_LOADED;
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import static com.android.launcher3.config.FeatureFlags.ADAPTIVE_ICON_WINDOW_ANIM;
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import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_OVERLAY;
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import android.animation.Animator;
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import android.animation.AnimatorListenerAdapter;
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import android.animation.LayoutTransition;
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import android.animation.ObjectAnimator;
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import android.animation.ValueAnimator;
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import android.animation.ValueAnimator.AnimatorUpdateListener;
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import android.annotation.SuppressLint;
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import android.app.WallpaperManager;
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import android.appwidget.AppWidgetHostView;
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import android.appwidget.AppWidgetProviderInfo;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Message;
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import android.os.Parcelable;
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import android.os.UserHandle;
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import android.text.TextUtils;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.util.SparseArray;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.ViewTreeObserver;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.widget.Toast;
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import com.android.launcher3.Launcher.LauncherOverlay;
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import com.android.launcher3.LauncherAppWidgetHost.ProviderChangedListener;
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import com.android.launcher3.LauncherStateManager.AnimationConfig;
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import com.android.launcher3.accessibility.AccessibleDragListenerAdapter;
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import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
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import com.android.launcher3.anim.AnimatorSetBuilder;
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import com.android.launcher3.anim.Interpolators;
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import com.android.launcher3.dot.FolderDotInfo;
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import com.android.launcher3.compat.AppWidgetManagerCompat;
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import com.android.launcher3.config.FeatureFlags;
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import com.android.launcher3.dragndrop.DragController;
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import com.android.launcher3.dragndrop.DragLayer;
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import com.android.launcher3.dragndrop.DragOptions;
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import com.android.launcher3.dragndrop.DragView;
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import com.android.launcher3.dragndrop.SpringLoadedDragController;
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import com.android.launcher3.folder.Folder;
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import com.android.launcher3.folder.FolderIcon;
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import com.android.launcher3.folder.PreviewBackground;
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import com.android.launcher3.graphics.DragPreviewProvider;
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import com.android.launcher3.graphics.PreloadIconDrawable;
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import com.android.launcher3.graphics.RotationMode;
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import com.android.launcher3.pageindicators.WorkspacePageIndicator;
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import com.android.launcher3.popup.PopupContainerWithArrow;
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import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
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import com.android.launcher3.testing.TestProtocol;
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import com.android.launcher3.touch.WorkspaceTouchListener;
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import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
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import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
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import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
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import com.android.launcher3.util.IntArray;
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import com.android.launcher3.util.IntSet;
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import com.android.launcher3.util.IntSparseArrayMap;
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import com.android.launcher3.util.ItemInfoMatcher;
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import com.android.launcher3.util.PackageUserKey;
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import com.android.launcher3.util.Thunk;
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import com.android.launcher3.util.WallpaperOffsetInterpolator;
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import com.android.launcher3.widget.LauncherAppWidgetHostView;
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import com.android.launcher3.widget.PendingAddShortcutInfo;
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import com.android.launcher3.widget.PendingAddWidgetInfo;
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import com.android.launcher3.widget.PendingAppWidgetHostView;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.function.Predicate;
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/**
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* The workspace is a wide area with a wallpaper and a finite number of pages.
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* Each page contains a number of icons, folders or widgets the user can
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* interact with. A workspace is meant to be used with a fixed width only.
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*/
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public class Workspace extends PagedView<WorkspacePageIndicator>
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implements DropTarget, DragSource, View.OnTouchListener,
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DragController.DragListener, Insettable, LauncherStateManager.StateHandler,
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WorkspaceLayoutManager {
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/** The value that {@link #mTransitionProgress} must be greater than for
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* {@link #transitionStateShouldAllowDrop()} to return true. */
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private static final float ALLOW_DROP_TRANSITION_PROGRESS = 0.25f;
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/** The value that {@link #mTransitionProgress} must be greater than for
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* {@link #isFinishedSwitchingState()} ()} to return true. */
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private static final float FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS = 0.5f;
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private static final boolean ENFORCE_DRAG_EVENT_ORDER = false;
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private static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400;
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private static final int FADE_EMPTY_SCREEN_DURATION = 150;
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private static final int ADJACENT_SCREEN_DROP_DURATION = 300;
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private static final int DEFAULT_PAGE = 0;
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public static final boolean MAP_NO_RECURSE = false;
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public static final boolean MAP_RECURSE = true;
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private LayoutTransition mLayoutTransition;
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@Thunk final WallpaperManager mWallpaperManager;
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private ShortcutAndWidgetContainer mDragSourceInternal;
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@Thunk final IntSparseArrayMap<CellLayout> mWorkspaceScreens = new IntSparseArrayMap<>();
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@Thunk final IntArray mScreenOrder = new IntArray();
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@Thunk Runnable mRemoveEmptyScreenRunnable;
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@Thunk boolean mDeferRemoveExtraEmptyScreen = false;
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/**
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* CellInfo for the cell that is currently being dragged
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*/
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private CellLayout.CellInfo mDragInfo;
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/**
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* Target drop area calculated during last acceptDrop call.
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*/
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@Thunk int[] mTargetCell = new int[2];
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private int mDragOverX = -1;
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private int mDragOverY = -1;
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/**
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* The CellLayout that is currently being dragged over
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*/
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@Thunk CellLayout mDragTargetLayout = null;
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/**
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* The CellLayout that we will show as highlighted
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*/
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private CellLayout mDragOverlappingLayout = null;
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/**
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* The CellLayout which will be dropped to
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*/
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private CellLayout mDropToLayout = null;
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@Thunk final Launcher mLauncher;
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@Thunk DragController mDragController;
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private final Rect mTempRect = new Rect();
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private final int[] mTempXY = new int[2];
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private final float[] mTempFXY = new float[2];
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@Thunk float[] mDragViewVisualCenter = new float[2];
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private final float[] mTempTouchCoordinates = new float[2];
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private SpringLoadedDragController mSpringLoadedDragController;
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private boolean mIsSwitchingState = false;
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boolean mChildrenLayersEnabled = true;
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private boolean mStripScreensOnPageStopMoving = false;
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private DragPreviewProvider mOutlineProvider = null;
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private boolean mWorkspaceFadeInAdjacentScreens;
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final WallpaperOffsetInterpolator mWallpaperOffset;
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private boolean mUnlockWallpaperFromDefaultPageOnLayout;
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// Variables relating to the creation of user folders by hovering shortcuts over shortcuts
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private static final int FOLDER_CREATION_TIMEOUT = 0;
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public static final int REORDER_TIMEOUT = 650;
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private final Alarm mFolderCreationAlarm = new Alarm();
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private final Alarm mReorderAlarm = new Alarm();
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private PreviewBackground mFolderCreateBg;
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private FolderIcon mDragOverFolderIcon = null;
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private boolean mCreateUserFolderOnDrop = false;
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private boolean mAddToExistingFolderOnDrop = false;
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private float mMaxDistanceForFolderCreation;
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// Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
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private float mXDown;
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private float mYDown;
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final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
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final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
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final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
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// Relating to the animation of items being dropped externally
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public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0;
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public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1;
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public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2;
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public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3;
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public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4;
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// Related to dragging, folder creation and reordering
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private static final int DRAG_MODE_NONE = 0;
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private static final int DRAG_MODE_CREATE_FOLDER = 1;
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private static final int DRAG_MODE_ADD_TO_FOLDER = 2;
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private static final int DRAG_MODE_REORDER = 3;
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private int mDragMode = DRAG_MODE_NONE;
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@Thunk int mLastReorderX = -1;
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@Thunk int mLastReorderY = -1;
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private SparseArray<Parcelable> mSavedStates;
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private final IntArray mRestoredPages = new IntArray();
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private float mCurrentScale;
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private float mTransitionProgress;
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// State related to Launcher Overlay
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LauncherOverlay mLauncherOverlay;
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boolean mScrollInteractionBegan;
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boolean mStartedSendingScrollEvents;
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float mLastOverlayScroll = 0;
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boolean mOverlayShown = false;
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private Runnable mOnOverlayHiddenCallback;
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private boolean mForceDrawAdjacentPages = false;
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// Total over scrollX in the overlay direction.
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private float mOverlayTranslation;
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// Handles workspace state transitions
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private final WorkspaceStateTransitionAnimation mStateTransitionAnimation;
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/**
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* Used to inflate the Workspace from XML.
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*
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* @param context The application's context.
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* @param attrs The attributes set containing the Workspace's customization values.
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*/
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public Workspace(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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/**
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* Used to inflate the Workspace from XML.
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*
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* @param context The application's context.
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* @param attrs The attributes set containing the Workspace's customization values.
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* @param defStyle Unused.
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*/
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public Workspace(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mLauncher = Launcher.getLauncher(context);
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mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
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mWallpaperManager = WallpaperManager.getInstance(context);
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mWallpaperOffset = new WallpaperOffsetInterpolator(this);
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setHapticFeedbackEnabled(false);
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initWorkspace();
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// Disable multitouch across the workspace/all apps/customize tray
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setMotionEventSplittingEnabled(true);
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setOnTouchListener(new WorkspaceTouchListener(mLauncher, this));
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}
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@Override
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public void setInsets(Rect insets) {
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DeviceProfile grid = mLauncher.getDeviceProfile();
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DeviceProfile stableGrid = mLauncher.getWallpaperDeviceProfile();
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mMaxDistanceForFolderCreation = stableGrid.isTablet
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? 0.75f * stableGrid.iconSizePx
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: 0.55f * stableGrid.iconSizePx;
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mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
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Rect padding = stableGrid.workspacePadding;
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RotationMode rotationMode = mLauncher.getRotationMode();
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rotationMode.mapRect(padding, mTempRect);
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setPadding(mTempRect.left, mTempRect.top, mTempRect.right, mTempRect.bottom);
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rotationMode.mapRect(stableGrid.getInsets(), mInsets);
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if (mWorkspaceFadeInAdjacentScreens) {
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// In landscape mode the page spacing is set to the default.
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setPageSpacing(grid.edgeMarginPx);
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} else {
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// In portrait, we want the pages spaced such that there is no
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// overhang of the previous / next page into the current page viewport.
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// We assume symmetrical padding in portrait mode.
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setPageSpacing(Math.max(grid.edgeMarginPx, padding.left + 1));
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}
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int paddingLeftRight = stableGrid.cellLayoutPaddingLeftRightPx;
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int paddingBottom = stableGrid.cellLayoutBottomPaddingPx;
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for (int i = mWorkspaceScreens.size() - 1; i >= 0; i--) {
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CellLayout page = mWorkspaceScreens.valueAt(i);
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page.setRotationMode(rotationMode);
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page.setPadding(paddingLeftRight, 0, paddingLeftRight, paddingBottom);
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}
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}
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/**
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* Estimates the size of an item using spans: hSpan, vSpan.
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*
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* @return MAX_VALUE for each dimension if unsuccessful.
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*/
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public int[] estimateItemSize(ItemInfo itemInfo) {
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int[] size = new int[2];
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if (getChildCount() > 0) {
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// Use the first page to estimate the child position
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CellLayout cl = (CellLayout) getChildAt(0);
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boolean isWidget = itemInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
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Rect r = estimateItemPosition(cl, 0, 0, itemInfo.spanX, itemInfo.spanY);
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float scale = 1;
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if (isWidget) {
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DeviceProfile profile = mLauncher.getWallpaperDeviceProfile();
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scale = Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y);
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}
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size[0] = r.width();
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size[1] = r.height();
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if (isWidget) {
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size[0] /= scale;
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size[1] /= scale;
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}
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return size;
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} else {
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size[0] = Integer.MAX_VALUE;
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size[1] = Integer.MAX_VALUE;
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return size;
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}
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}
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public float getWallpaperOffsetForCenterPage() {
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int pageScroll = getScrollForPage(getPageNearestToCenterOfScreen());
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return mWallpaperOffset.wallpaperOffsetForScroll(pageScroll);
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}
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public Rect estimateItemPosition(CellLayout cl, int hCell, int vCell, int hSpan, int vSpan) {
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Rect r = new Rect();
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cl.cellToRect(hCell, vCell, hSpan, vSpan, r);
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return r;
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}
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@Override
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public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) {
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if (TestProtocol.sDebugTracing) {
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android.util.Log.d(TestProtocol.NO_DRAG_TAG,
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"onDragStart 1");
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}
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if (ENFORCE_DRAG_EVENT_ORDER) {
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enforceDragParity("onDragStart", 0, 0);
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}
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if (mDragInfo != null && mDragInfo.cell != null) {
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CellLayout layout = (CellLayout) mDragInfo.cell.getParent().getParent();
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layout.markCellsAsUnoccupiedForView(mDragInfo.cell);
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}
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if (mOutlineProvider != null) {
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if (dragObject.dragView != null) {
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Bitmap preview = dragObject.dragView.getPreviewBitmap();
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// The outline is used to visualize where the item will land if dropped
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mOutlineProvider.generateDragOutline(preview);
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}
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}
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updateChildrenLayersEnabled();
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// Do not add a new page if it is a accessible drag which was not started by the workspace.
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// We do not support accessibility drag from other sources and instead provide a direct
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// action for move/add to homescreen.
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// When a accessible drag is started by the folder, we only allow rearranging withing the
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// folder.
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boolean addNewPage = !(options.isAccessibleDrag && dragObject.dragSource != this);
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if (addNewPage) {
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mDeferRemoveExtraEmptyScreen = false;
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addExtraEmptyScreenOnDrag();
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if (dragObject.dragInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
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&& dragObject.dragSource != this) {
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// When dragging a widget from different source, move to a page which has
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// enough space to place this widget (after rearranging/resizing). We special case
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// widgets as they cannot be placed inside a folder.
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// Start at the current page and search right (on LTR) until finding a page with
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// enough space. Since an empty screen is the furthest right, a page must be found.
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int currentPage = getPageNearestToCenterOfScreen();
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for (int pageIndex = currentPage; pageIndex < getPageCount(); pageIndex++) {
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CellLayout page = (CellLayout) getPageAt(pageIndex);
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if (page.hasReorderSolution(dragObject.dragInfo)) {
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setCurrentPage(pageIndex);
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break;
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}
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}
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}
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}
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// Always enter the spring loaded mode
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if (TestProtocol.sDebugTracing) {
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android.util.Log.d(TestProtocol.NO_DRAG_TAG,
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"onDragStart 2");
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}
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mLauncher.getStateManager().goToState(SPRING_LOADED);
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}
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public void deferRemoveExtraEmptyScreen() {
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mDeferRemoveExtraEmptyScreen = true;
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}
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@Override
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public void onDragEnd() {
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if (ENFORCE_DRAG_EVENT_ORDER) {
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enforceDragParity("onDragEnd", 0, 0);
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}
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if (!mDeferRemoveExtraEmptyScreen) {
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removeExtraEmptyScreen(true, mDragSourceInternal != null);
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}
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updateChildrenLayersEnabled();
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mDragInfo = null;
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mOutlineProvider = null;
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mDragSourceInternal = null;
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}
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/**
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* Initializes various states for this workspace.
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*/
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protected void initWorkspace() {
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mCurrentPage = DEFAULT_PAGE;
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setClipToPadding(false);
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setupLayoutTransition();
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// Set the wallpaper dimensions when Launcher starts up
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setWallpaperDimension();
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}
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private void setupLayoutTransition() {
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// We want to show layout transitions when pages are deleted, to close the gap.
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mLayoutTransition = new LayoutTransition();
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mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING);
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mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING);
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mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING);
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mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING);
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setLayoutTransition(mLayoutTransition);
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}
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void enableLayoutTransitions() {
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setLayoutTransition(mLayoutTransition);
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}
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void disableLayoutTransitions() {
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setLayoutTransition(null);
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}
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@Override
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public void onViewAdded(View child) {
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if (!(child instanceof CellLayout)) {
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throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
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}
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CellLayout cl = ((CellLayout) child);
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cl.setOnInterceptTouchListener(this);
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cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
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super.onViewAdded(child);
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}
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/**
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* Initializes and binds the first page
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* @param qsb an existing qsb to recycle or null.
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*/
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public void bindAndInitFirstWorkspaceScreen(View qsb) {
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if (!FeatureFlags.QSB_ON_FIRST_SCREEN) {
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return;
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}
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// Add the first page
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CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0);
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// Always add a QSB on the first screen.
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if (qsb == null) {
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// In transposed layout, we add the QSB in the Grid. As workspace does not touch the
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// edges, we do not need a full width QSB.
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qsb = LayoutInflater.from(getContext())
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.inflate(R.layout.search_container_workspace,firstPage, false);
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}
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CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1);
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lp.canReorder = false;
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if (!firstPage.addViewToCellLayout(qsb, 0, R.id.search_container_workspace, lp, true)) {
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Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout");
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}
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}
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public void removeAllWorkspaceScreens() {
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// Disable all layout transitions before removing all pages to ensure that we don't get the
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// transition animations competing with us changing the scroll when we add pages
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disableLayoutTransitions();
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// Recycle the QSB widget
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View qsb = findViewById(R.id.search_container_workspace);
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if (qsb != null) {
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((ViewGroup) qsb.getParent()).removeView(qsb);
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}
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// Remove the pages and clear the screen models
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removeFolderListeners();
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removeAllViews();
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mScreenOrder.clear();
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mWorkspaceScreens.clear();
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// Remove any deferred refresh callbacks
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mLauncher.mHandler.removeCallbacksAndMessages(DeferredWidgetRefresh.class);
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// Ensure that the first page is always present
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bindAndInitFirstWorkspaceScreen(qsb);
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// Re-enable the layout transitions
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enableLayoutTransitions();
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}
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public void insertNewWorkspaceScreenBeforeEmptyScreen(int screenId) {
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// Find the index to insert this view into. If the empty screen exists, then
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// insert it before that.
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int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
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if (insertIndex < 0) {
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insertIndex = mScreenOrder.size();
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}
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insertNewWorkspaceScreen(screenId, insertIndex);
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}
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public void insertNewWorkspaceScreen(int screenId) {
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insertNewWorkspaceScreen(screenId, getChildCount());
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}
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public CellLayout insertNewWorkspaceScreen(int screenId, int insertIndex) {
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if (mWorkspaceScreens.containsKey(screenId)) {
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throw new RuntimeException("Screen id " + screenId + " already exists!");
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}
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// Inflate the cell layout, but do not add it automatically so that we can get the newly
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// created CellLayout.
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CellLayout newScreen = (CellLayout) LayoutInflater.from(getContext()).inflate(
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R.layout.workspace_screen, this, false /* attachToRoot */);
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DeviceProfile grid = mLauncher.getWallpaperDeviceProfile();
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int paddingLeftRight = grid.cellLayoutPaddingLeftRightPx;
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int paddingBottom = grid.cellLayoutBottomPaddingPx;
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newScreen.setRotationMode(mLauncher.getRotationMode());
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newScreen.setPadding(paddingLeftRight, 0, paddingLeftRight, paddingBottom);
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mWorkspaceScreens.put(screenId, newScreen);
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mScreenOrder.add(insertIndex, screenId);
|
addView(newScreen, insertIndex);
|
mStateTransitionAnimation.applyChildState(
|
mLauncher.getStateManager().getState(), newScreen, insertIndex);
|
|
if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
|
newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
|
}
|
|
return newScreen;
|
}
|
|
public void addExtraEmptyScreenOnDrag() {
|
boolean lastChildOnScreen = false;
|
boolean childOnFinalScreen = false;
|
|
// Cancel any pending removal of empty screen
|
mRemoveEmptyScreenRunnable = null;
|
|
if (mDragSourceInternal != null) {
|
if (mDragSourceInternal.getChildCount() == 1) {
|
lastChildOnScreen = true;
|
}
|
CellLayout cl = (CellLayout) mDragSourceInternal.getParent();
|
if (indexOfChild(cl) == getChildCount() - 1) {
|
childOnFinalScreen = true;
|
}
|
}
|
|
// If this is the last item on the final screen
|
if (lastChildOnScreen && childOnFinalScreen) {
|
return;
|
}
|
if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) {
|
insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID);
|
}
|
}
|
|
public boolean addExtraEmptyScreen() {
|
if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) {
|
insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID);
|
return true;
|
}
|
return false;
|
}
|
|
private void convertFinalScreenToEmptyScreenIfNecessary() {
|
if (mLauncher.isWorkspaceLoading()) {
|
// Invalid and dangerous operation if workspace is loading
|
return;
|
}
|
|
if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return;
|
int finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1);
|
|
CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId);
|
|
// If the final screen is empty, convert it to the extra empty screen
|
if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 &&
|
!finalScreen.isDropPending()) {
|
mWorkspaceScreens.remove(finalScreenId);
|
mScreenOrder.removeValue(finalScreenId);
|
|
// if this is the last screen, convert it to the empty screen
|
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen);
|
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
|
}
|
}
|
|
public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) {
|
removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens);
|
}
|
|
public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete,
|
final int delay, final boolean stripEmptyScreens) {
|
if (mLauncher.isWorkspaceLoading()) {
|
// Don't strip empty screens if the workspace is still loading
|
return;
|
}
|
|
if (delay > 0) {
|
postDelayed(new Runnable() {
|
@Override
|
public void run() {
|
removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens);
|
}
|
}, delay);
|
return;
|
}
|
|
convertFinalScreenToEmptyScreenIfNecessary();
|
if (hasExtraEmptyScreen()) {
|
int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
|
if (getNextPage() == emptyIndex) {
|
snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION);
|
fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION,
|
onComplete, stripEmptyScreens);
|
} else {
|
snapToPage(getNextPage(), 0);
|
fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION,
|
onComplete, stripEmptyScreens);
|
}
|
return;
|
} else if (stripEmptyScreens) {
|
// If we're not going to strip the empty screens after removing
|
// the extra empty screen, do it right away.
|
stripEmptyScreens();
|
}
|
|
if (onComplete != null) {
|
onComplete.run();
|
}
|
}
|
|
private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete,
|
final boolean stripEmptyScreens) {
|
// XXX: Do we need to update LM workspace screens below?
|
final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
|
|
mRemoveEmptyScreenRunnable = new Runnable() {
|
@Override
|
public void run() {
|
if (hasExtraEmptyScreen()) {
|
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
|
mScreenOrder.removeValue(EXTRA_EMPTY_SCREEN_ID);
|
removeView(cl);
|
if (stripEmptyScreens) {
|
stripEmptyScreens();
|
}
|
// Update the page indicator to reflect the removed page.
|
showPageIndicatorAtCurrentScroll();
|
}
|
}
|
};
|
|
ObjectAnimator oa = ObjectAnimator.ofFloat(cl, ALPHA, 0f);
|
oa.setDuration(duration);
|
oa.setStartDelay(delay);
|
oa.addListener(new AnimatorListenerAdapter() {
|
@Override
|
public void onAnimationEnd(Animator animation) {
|
if (mRemoveEmptyScreenRunnable != null) {
|
mRemoveEmptyScreenRunnable.run();
|
}
|
if (onComplete != null) {
|
onComplete.run();
|
}
|
}
|
});
|
oa.start();
|
}
|
|
public boolean hasExtraEmptyScreen() {
|
return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && getChildCount() > 1;
|
}
|
|
public int commitExtraEmptyScreen() {
|
if (mLauncher.isWorkspaceLoading()) {
|
// Invalid and dangerous operation if workspace is loading
|
return -1;
|
}
|
|
CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
|
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
|
mScreenOrder.removeValue(EXTRA_EMPTY_SCREEN_ID);
|
|
int newId = LauncherSettings.Settings.call(getContext().getContentResolver(),
|
LauncherSettings.Settings.METHOD_NEW_SCREEN_ID)
|
.getInt(LauncherSettings.Settings.EXTRA_VALUE);
|
mWorkspaceScreens.put(newId, cl);
|
mScreenOrder.add(newId);
|
|
return newId;
|
}
|
|
@Override
|
public Hotseat getHotseat() {
|
return mLauncher.getHotseat();
|
}
|
|
@Override
|
public void onAddDropTarget(DropTarget target) {
|
mDragController.addDropTarget(target);
|
}
|
|
@Override
|
public CellLayout getScreenWithId(int screenId) {
|
return mWorkspaceScreens.get(screenId);
|
}
|
|
public int getIdForScreen(CellLayout layout) {
|
int index = mWorkspaceScreens.indexOfValue(layout);
|
if (index != -1) {
|
return mWorkspaceScreens.keyAt(index);
|
}
|
return -1;
|
}
|
|
public int getPageIndexForScreenId(int screenId) {
|
return indexOfChild(mWorkspaceScreens.get(screenId));
|
}
|
|
public int getScreenIdForPageIndex(int index) {
|
if (0 <= index && index < mScreenOrder.size()) {
|
return mScreenOrder.get(index);
|
}
|
return -1;
|
}
|
|
public IntArray getScreenOrder() {
|
return mScreenOrder;
|
}
|
|
public void stripEmptyScreens() {
|
if (mLauncher.isWorkspaceLoading()) {
|
// Don't strip empty screens if the workspace is still loading.
|
// This is dangerous and can result in data loss.
|
return;
|
}
|
|
if (isPageInTransition()) {
|
mStripScreensOnPageStopMoving = true;
|
return;
|
}
|
|
int currentPage = getNextPage();
|
IntArray removeScreens = new IntArray();
|
int total = mWorkspaceScreens.size();
|
for (int i = 0; i < total; i++) {
|
int id = mWorkspaceScreens.keyAt(i);
|
CellLayout cl = mWorkspaceScreens.valueAt(i);
|
// FIRST_SCREEN_ID can never be removed.
|
if ((!FeatureFlags.QSB_ON_FIRST_SCREEN || id > FIRST_SCREEN_ID)
|
&& cl.getShortcutsAndWidgets().getChildCount() == 0) {
|
removeScreens.add(id);
|
}
|
}
|
|
boolean isInAccessibleDrag = mLauncher.getAccessibilityDelegate().isInAccessibleDrag();
|
|
// We enforce at least one page to add new items to. In the case that we remove the last
|
// such screen, we convert the last screen to the empty screen
|
int minScreens = 1;
|
|
int pageShift = 0;
|
for (int i = 0; i < removeScreens.size(); i++) {
|
int id = removeScreens.get(i);
|
CellLayout cl = mWorkspaceScreens.get(id);
|
mWorkspaceScreens.remove(id);
|
mScreenOrder.removeValue(id);
|
|
if (getChildCount() > minScreens) {
|
if (indexOfChild(cl) < currentPage) {
|
pageShift++;
|
}
|
|
if (isInAccessibleDrag) {
|
cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
|
}
|
|
removeView(cl);
|
} else {
|
// if this is the last screen, convert it to the empty screen
|
mRemoveEmptyScreenRunnable = null;
|
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl);
|
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
|
}
|
}
|
|
if (pageShift >= 0) {
|
setCurrentPage(currentPage - pageShift);
|
}
|
}
|
|
/**
|
* Called directly from a CellLayout (not by the framework), after we've been added as a
|
* listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
|
* that it should intercept touch events, which is not something that is normally supported.
|
*/
|
@SuppressLint("ClickableViewAccessibility")
|
@Override
|
public boolean onTouch(View v, MotionEvent event) {
|
return shouldConsumeTouch(v);
|
}
|
|
private boolean shouldConsumeTouch(View v) {
|
return !workspaceIconsCanBeDragged()
|
|| (!workspaceInModalState() && indexOfChild(v) != mCurrentPage);
|
}
|
|
public boolean isSwitchingState() {
|
return mIsSwitchingState;
|
}
|
|
/** This differs from isSwitchingState in that we take into account how far the transition
|
* has completed. */
|
public boolean isFinishedSwitchingState() {
|
return !mIsSwitchingState
|
|| (mTransitionProgress > FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS);
|
}
|
|
@Override
|
public boolean dispatchUnhandledMove(View focused, int direction) {
|
if (workspaceInModalState() || !isFinishedSwitchingState()) {
|
// when the home screens are shrunken, shouldn't allow side-scrolling
|
return false;
|
}
|
return super.dispatchUnhandledMove(focused, direction);
|
}
|
|
@Override
|
public boolean onInterceptTouchEvent(MotionEvent ev) {
|
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
|
mXDown = ev.getX();
|
mYDown = ev.getY();
|
}
|
return super.onInterceptTouchEvent(ev);
|
}
|
|
@Override
|
protected void determineScrollingStart(MotionEvent ev) {
|
if (!isFinishedSwitchingState()) return;
|
|
float deltaX = ev.getX() - mXDown;
|
float absDeltaX = Math.abs(deltaX);
|
float absDeltaY = Math.abs(ev.getY() - mYDown);
|
|
if (Float.compare(absDeltaX, 0f) == 0) return;
|
|
float slope = absDeltaY / absDeltaX;
|
float theta = (float) Math.atan(slope);
|
|
if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) {
|
cancelCurrentPageLongPress();
|
}
|
|
if (theta > MAX_SWIPE_ANGLE) {
|
// Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
|
return;
|
} else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
|
// Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
|
// increase the touch slop to make it harder to begin scrolling the workspace. This
|
// results in vertically scrolling widgets to more easily. The higher the angle, the
|
// more we increase touch slop.
|
theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
|
float extraRatio = (float)
|
Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
|
super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
|
} else {
|
// Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
|
super.determineScrollingStart(ev);
|
}
|
}
|
|
protected void onPageBeginTransition() {
|
super.onPageBeginTransition();
|
updateChildrenLayersEnabled();
|
}
|
|
protected void onPageEndTransition() {
|
super.onPageEndTransition();
|
updateChildrenLayersEnabled();
|
|
if (mDragController.isDragging()) {
|
if (workspaceInModalState()) {
|
// If we are in springloaded mode, then force an event to check if the current touch
|
// is under a new page (to scroll to)
|
mDragController.forceTouchMove();
|
}
|
}
|
|
if (mStripScreensOnPageStopMoving) {
|
stripEmptyScreens();
|
mStripScreensOnPageStopMoving = false;
|
}
|
}
|
|
protected void onScrollInteractionBegin() {
|
super.onScrollInteractionBegin();
|
mScrollInteractionBegan = true;
|
}
|
|
protected void onScrollInteractionEnd() {
|
super.onScrollInteractionEnd();
|
mScrollInteractionBegan = false;
|
if (mStartedSendingScrollEvents) {
|
mStartedSendingScrollEvents = false;
|
mLauncherOverlay.onScrollInteractionEnd();
|
}
|
}
|
|
public void setLauncherOverlay(LauncherOverlay overlay) {
|
mLauncherOverlay = overlay;
|
// A new overlay has been set. Reset event tracking
|
mStartedSendingScrollEvents = false;
|
onOverlayScrollChanged(0);
|
}
|
|
|
private boolean isScrollingOverlay() {
|
return mLauncherOverlay != null &&
|
((mIsRtl && getUnboundedScrollX() > mMaxScrollX)
|
|| (!mIsRtl && getUnboundedScrollX() < mMinScrollX));
|
}
|
|
@Override
|
protected void snapToDestination() {
|
// If we're overscrolling the overlay, we make sure to immediately reset the PagedView
|
// to it's baseline position instead of letting the overscroll settle. The overlay handles
|
// it's own settling, and every gesture to the overlay should be self-contained and start
|
// from 0, so we zero it out here.
|
if (isScrollingOverlay()) {
|
// We reset mWasInOverscroll so that PagedView doesn't zero out the overscroll
|
// interaction when we call snapToPageImmediately.
|
mWasInOverscroll = false;
|
snapToPageImmediately(0);
|
} else {
|
super.snapToDestination();
|
}
|
}
|
|
@Override
|
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
|
super.onScrollChanged(l, t, oldl, oldt);
|
|
// Update the page indicator progress.
|
boolean isTransitioning = mIsSwitchingState
|
|| (getLayoutTransition() != null && getLayoutTransition().isRunning());
|
if (!isTransitioning) {
|
showPageIndicatorAtCurrentScroll();
|
}
|
|
updatePageAlphaValues();
|
enableHwLayersOnVisiblePages();
|
}
|
|
public void showPageIndicatorAtCurrentScroll() {
|
if (mPageIndicator != null) {
|
mPageIndicator.setScroll(getScrollX(), computeMaxScrollX());
|
}
|
}
|
|
@Override
|
protected void overScroll(int amount) {
|
boolean shouldScrollOverlay = mLauncherOverlay != null && !mScroller.isSpringing() &&
|
((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl));
|
|
boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlayScroll != 0 &&
|
((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl));
|
|
if (shouldScrollOverlay) {
|
if (!mStartedSendingScrollEvents && mScrollInteractionBegan) {
|
mStartedSendingScrollEvents = true;
|
mLauncherOverlay.onScrollInteractionBegin();
|
}
|
|
mLastOverlayScroll = Math.abs(((float) amount) / getMeasuredWidth());
|
mLauncherOverlay.onScrollChange(mLastOverlayScroll, mIsRtl);
|
} else {
|
dampedOverScroll(amount);
|
}
|
|
if (shouldZeroOverlay) {
|
mLauncherOverlay.onScrollChange(0, mIsRtl);
|
}
|
}
|
|
@Override
|
protected boolean shouldFlingForVelocity(int velocityX) {
|
// When the overlay is moving, the fling or settle transition is controlled by the overlay.
|
return Float.compare(Math.abs(mOverlayTranslation), 0) == 0 &&
|
super.shouldFlingForVelocity(velocityX);
|
}
|
|
/**
|
* The overlay scroll is being controlled locally, just update our overlay effect
|
*/
|
public void onOverlayScrollChanged(float scroll) {
|
if (Float.compare(scroll, 1f) == 0) {
|
if (!mOverlayShown) {
|
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
|
Action.Direction.LEFT, ContainerType.WORKSPACE, 0);
|
}
|
mOverlayShown = true;
|
// Not announcing the overlay page for accessibility since it announces itself.
|
} else if (Float.compare(scroll, 0f) == 0) {
|
if (mOverlayShown) {
|
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
|
Action.Direction.RIGHT, ContainerType.WORKSPACE, -1);
|
} else if (Float.compare(mOverlayTranslation, 0f) != 0) {
|
// When arriving to 0 overscroll from non-zero overscroll, announce page for
|
// accessibility since default announcements were disabled while in overscroll
|
// state.
|
// Not doing this if mOverlayShown because in that case the accessibility service
|
// will announce the launcher window description upon regaining focus after
|
// switching from the overlay screen.
|
announcePageForAccessibility();
|
}
|
mOverlayShown = false;
|
tryRunOverlayCallback();
|
}
|
|
float offset = 0f;
|
|
scroll = Math.max(scroll - offset, 0);
|
scroll = Math.min(1, scroll / (1 - offset));
|
|
float alpha = 1 - Interpolators.DEACCEL_3.getInterpolation(scroll);
|
float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll;
|
|
if (mIsRtl) {
|
transX = -transX;
|
}
|
mOverlayTranslation = transX;
|
|
// TODO(adamcohen): figure out a final effect here. We may need to recommend
|
// different effects based on device performance. On at least one relatively high-end
|
// device I've tried, translating the launcher causes things to get quite laggy.
|
mLauncher.getDragLayer().setTranslationX(transX);
|
mLauncher.getDragLayer().getAlphaProperty(ALPHA_INDEX_OVERLAY).setValue(alpha);
|
}
|
|
/**
|
* @return false if the callback is still pending
|
*/
|
private boolean tryRunOverlayCallback() {
|
if (mOnOverlayHiddenCallback == null) {
|
// Return true as no callback is pending. This is used by OnWindowFocusChangeListener
|
// to remove itself if multiple focus handles were added.
|
return true;
|
}
|
if (mOverlayShown || !hasWindowFocus()) {
|
return false;
|
}
|
|
mOnOverlayHiddenCallback.run();
|
mOnOverlayHiddenCallback = null;
|
return true;
|
}
|
|
/**
|
* Runs the given callback when the minus one overlay is hidden. Specifically, it is run
|
* when launcher's window has focus and the overlay is no longer being shown. If a callback
|
* is already present, the new callback will chain off it so both are run.
|
*
|
* @return Whether the callback was deferred.
|
*/
|
public boolean runOnOverlayHidden(Runnable callback) {
|
if (mOnOverlayHiddenCallback == null) {
|
mOnOverlayHiddenCallback = callback;
|
} else {
|
// Chain the new callback onto the previous callback(s).
|
Runnable oldCallback = mOnOverlayHiddenCallback;
|
mOnOverlayHiddenCallback = () -> {
|
oldCallback.run();
|
callback.run();
|
};
|
}
|
if (!tryRunOverlayCallback()) {
|
ViewTreeObserver observer = getViewTreeObserver();
|
if (observer != null && observer.isAlive()) {
|
observer.addOnWindowFocusChangeListener(
|
new ViewTreeObserver.OnWindowFocusChangeListener() {
|
@Override
|
public void onWindowFocusChanged(boolean hasFocus) {
|
if (tryRunOverlayCallback() && observer.isAlive()) {
|
observer.removeOnWindowFocusChangeListener(this);
|
}
|
}});
|
}
|
return true;
|
}
|
return false;
|
}
|
|
@Override
|
protected void notifyPageSwitchListener(int prevPage) {
|
super.notifyPageSwitchListener(prevPage);
|
if (prevPage != mCurrentPage) {
|
int swipeDirection = (prevPage < mCurrentPage) ? Action.Direction.RIGHT : Action.Direction.LEFT;
|
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
|
swipeDirection, ContainerType.WORKSPACE, prevPage);
|
}
|
}
|
|
protected void setWallpaperDimension() {
|
Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() {
|
@Override
|
public void run() {
|
final Point size = LauncherAppState.getIDP(getContext()).defaultWallpaperSize;
|
if (size.x != mWallpaperManager.getDesiredMinimumWidth()
|
|| size.y != mWallpaperManager.getDesiredMinimumHeight()) {
|
mWallpaperManager.suggestDesiredDimensions(size.x, size.y);
|
}
|
}
|
});
|
}
|
|
public void lockWallpaperToDefaultPage() {
|
mWallpaperOffset.setLockToDefaultPage(true);
|
}
|
|
public void unlockWallpaperFromDefaultPageOnNextLayout() {
|
if (mWallpaperOffset.isLockedToDefaultPage()) {
|
mUnlockWallpaperFromDefaultPageOnLayout = true;
|
requestLayout();
|
}
|
}
|
|
@Override
|
public void computeScroll() {
|
super.computeScroll();
|
mWallpaperOffset.syncWithScroll();
|
}
|
|
public void computeScrollWithoutInvalidation() {
|
computeScrollHelper(false);
|
}
|
|
@Override
|
protected void determineScrollingStart(MotionEvent ev, float touchSlopScale) {
|
if (!isSwitchingState()) {
|
super.determineScrollingStart(ev, touchSlopScale);
|
}
|
}
|
|
@Override
|
public void announceForAccessibility(CharSequence text) {
|
// Don't announce if apps is on top of us.
|
if (!mLauncher.isInState(ALL_APPS)) {
|
super.announceForAccessibility(text);
|
}
|
}
|
|
private void updatePageAlphaValues() {
|
// We need to check the isDragging case because updatePageAlphaValues is called between
|
// goToState(SPRING_LOADED) and onStartStateTransition.
|
if (!workspaceInModalState() && !mIsSwitchingState && !mDragController.isDragging()) {
|
int screenCenter = getScrollX() + getMeasuredWidth() / 2;
|
for (int i = 0; i < getChildCount(); i++) {
|
CellLayout child = (CellLayout) getChildAt(i);
|
if (child != null) {
|
float scrollProgress = getScrollProgress(screenCenter, child, i);
|
float alpha = 1 - Math.abs(scrollProgress);
|
if (mWorkspaceFadeInAdjacentScreens) {
|
child.getShortcutsAndWidgets().setAlpha(alpha);
|
} else {
|
// Pages that are off-screen aren't important for accessibility.
|
child.getShortcutsAndWidgets().setImportantForAccessibility(
|
alpha > 0 ? IMPORTANT_FOR_ACCESSIBILITY_AUTO
|
: IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
|
}
|
}
|
}
|
}
|
}
|
|
protected void onAttachedToWindow() {
|
super.onAttachedToWindow();
|
IBinder windowToken = getWindowToken();
|
mWallpaperOffset.setWindowToken(windowToken);
|
computeScroll();
|
mDragController.setWindowToken(windowToken);
|
}
|
|
protected void onDetachedFromWindow() {
|
super.onDetachedFromWindow();
|
mWallpaperOffset.setWindowToken(null);
|
}
|
|
@Override
|
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
|
if (mUnlockWallpaperFromDefaultPageOnLayout) {
|
mWallpaperOffset.setLockToDefaultPage(false);
|
mUnlockWallpaperFromDefaultPageOnLayout = false;
|
}
|
if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
|
mWallpaperOffset.syncWithScroll();
|
mWallpaperOffset.jumpToFinal();
|
}
|
super.onLayout(changed, left, top, right, bottom);
|
updatePageAlphaValues();
|
}
|
|
@Override
|
public int getDescendantFocusability() {
|
if (workspaceInModalState()) {
|
return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
|
}
|
return super.getDescendantFocusability();
|
}
|
|
private boolean workspaceInModalState() {
|
return !mLauncher.isInState(NORMAL);
|
}
|
|
/** Returns whether a drag should be allowed to be started from the current workspace state. */
|
public boolean workspaceIconsCanBeDragged() {
|
return mLauncher.getStateManager().getState().workspaceIconsCanBeDragged;
|
}
|
|
private void updateChildrenLayersEnabled() {
|
boolean enableChildrenLayers = mIsSwitchingState || isPageInTransition();
|
|
if (enableChildrenLayers != mChildrenLayersEnabled) {
|
mChildrenLayersEnabled = enableChildrenLayers;
|
if (mChildrenLayersEnabled) {
|
enableHwLayersOnVisiblePages();
|
} else {
|
for (int i = 0; i < getPageCount(); i++) {
|
final CellLayout cl = (CellLayout) getChildAt(i);
|
cl.enableHardwareLayer(false);
|
}
|
}
|
}
|
}
|
|
private void enableHwLayersOnVisiblePages() {
|
if (mChildrenLayersEnabled) {
|
final int screenCount = getChildCount();
|
|
final int[] visibleScreens = getVisibleChildrenRange();
|
int leftScreen = visibleScreens[0];
|
int rightScreen = visibleScreens[1];
|
if (mForceDrawAdjacentPages) {
|
// In overview mode, make sure that the two side pages are visible.
|
leftScreen = Utilities.boundToRange(getCurrentPage() - 1, 0, rightScreen);
|
rightScreen = Utilities.boundToRange(getCurrentPage() + 1,
|
leftScreen, getPageCount() - 1);
|
}
|
|
if (leftScreen == rightScreen) {
|
// make sure we're caching at least two pages always
|
if (rightScreen < screenCount - 1) {
|
rightScreen++;
|
} else if (leftScreen > 0) {
|
leftScreen--;
|
}
|
}
|
|
for (int i = 0; i < screenCount; i++) {
|
final CellLayout layout = (CellLayout) getPageAt(i);
|
// enable layers between left and right screen inclusive.
|
boolean enableLayer = leftScreen <= i && i <= rightScreen;
|
layout.enableHardwareLayer(enableLayer);
|
}
|
}
|
}
|
|
public void onWallpaperTap(MotionEvent ev) {
|
final int[] position = mTempXY;
|
getLocationOnScreen(position);
|
|
int pointerIndex = ev.getActionIndex();
|
position[0] += (int) ev.getX(pointerIndex);
|
position[1] += (int) ev.getY(pointerIndex);
|
|
mWallpaperManager.sendWallpaperCommand(getWindowToken(),
|
ev.getAction() == MotionEvent.ACTION_UP
|
? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
|
position[0], position[1], 0, null);
|
}
|
|
public void prepareDragWithProvider(DragPreviewProvider outlineProvider) {
|
mOutlineProvider = outlineProvider;
|
}
|
|
public void snapToPageFromOverView(int whichPage) {
|
snapToPage(whichPage, OVERVIEW_TRANSITION_MS, Interpolators.ZOOM_IN);
|
}
|
|
private void onStartStateTransition(LauncherState state) {
|
mIsSwitchingState = true;
|
mTransitionProgress = 0;
|
|
updateChildrenLayersEnabled();
|
}
|
|
private void onEndStateTransition() {
|
mIsSwitchingState = false;
|
mForceDrawAdjacentPages = false;
|
mTransitionProgress = 1;
|
|
updateChildrenLayersEnabled();
|
updateAccessibilityFlags();
|
}
|
|
/**
|
* Sets the current workspace {@link LauncherState} and updates the UI without any animations
|
*/
|
@Override
|
public void setState(LauncherState toState) {
|
onStartStateTransition(toState);
|
mStateTransitionAnimation.setState(toState);
|
onEndStateTransition();
|
}
|
|
/**
|
* Sets the current workspace {@link LauncherState}, then animates the UI
|
*/
|
@Override
|
public void setStateWithAnimation(LauncherState toState,
|
AnimatorSetBuilder builder, AnimationConfig config) {
|
StateTransitionListener listener = new StateTransitionListener(toState);
|
mStateTransitionAnimation.setStateWithAnimation(toState, builder, config);
|
|
// Invalidate the pages now, so that we have the visible pages before the
|
// animation is started
|
if (toState.hasMultipleVisiblePages) {
|
mForceDrawAdjacentPages = true;
|
}
|
invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
|
|
ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1);
|
stepAnimator.addUpdateListener(listener);
|
stepAnimator.setDuration(config.duration);
|
stepAnimator.addListener(listener);
|
builder.play(stepAnimator);
|
}
|
|
public WorkspaceStateTransitionAnimation getStateTransitionAnimation() {
|
return mStateTransitionAnimation;
|
}
|
|
public void updateAccessibilityFlags() {
|
// TODO: Update the accessibility flags appropriately when dragging.
|
int accessibilityFlag = mLauncher.getStateManager().getState().workspaceAccessibilityFlag;
|
if (!mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
|
int total = getPageCount();
|
for (int i = 0; i < total; i++) {
|
updateAccessibilityFlags(accessibilityFlag, (CellLayout) getPageAt(i));
|
}
|
setImportantForAccessibility(accessibilityFlag);
|
}
|
}
|
|
@Override
|
public AccessibilityNodeInfo createAccessibilityNodeInfo() {
|
if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS) {
|
// TAPL tests verify that workspace is not present in Overview and AllApps states.
|
// TAPL can work only if UIDevice is set up as setCompressedLayoutHeirarchy(false).
|
// Hiding workspace from the tests when it's
|
// IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS.
|
return null;
|
}
|
return super.createAccessibilityNodeInfo();
|
}
|
|
private void updateAccessibilityFlags(int accessibilityFlag, CellLayout page) {
|
page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
|
page.getShortcutsAndWidgets().setImportantForAccessibility(accessibilityFlag);
|
page.setContentDescription(null);
|
page.setAccessibilityDelegate(null);
|
}
|
|
public void startDrag(CellLayout.CellInfo cellInfo, DragOptions options) {
|
View child = cellInfo.cell;
|
|
mDragInfo = cellInfo;
|
child.setVisibility(INVISIBLE);
|
|
if (options.isAccessibleDrag) {
|
mDragController.addDragListener(new AccessibleDragListenerAdapter(
|
this, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG) {
|
@Override
|
protected void enableAccessibleDrag(boolean enable) {
|
super.enableAccessibleDrag(enable);
|
setEnableForLayout(mLauncher.getHotseat(),enable);
|
}
|
});
|
}
|
|
beginDragShared(child, this, options);
|
}
|
|
public void beginDragShared(View child, DragSource source, DragOptions options) {
|
Object dragObject = child.getTag();
|
if (!(dragObject instanceof ItemInfo)) {
|
String msg = "Drag started with a view that has no tag set. This "
|
+ "will cause a crash (issue 11627249) down the line. "
|
+ "View: " + child + " tag: " + child.getTag();
|
throw new IllegalStateException(msg);
|
}
|
beginDragShared(child, source, (ItemInfo) dragObject,
|
new DragPreviewProvider(child), options);
|
}
|
|
public DragView beginDragShared(View child, DragSource source, ItemInfo dragObject,
|
DragPreviewProvider previewProvider, DragOptions dragOptions) {
|
float iconScale = 1f;
|
if (child instanceof BubbleTextView) {
|
Drawable icon = ((BubbleTextView) child).getIcon();
|
if (icon instanceof FastBitmapDrawable) {
|
iconScale = ((FastBitmapDrawable) icon).getAnimatedScale();
|
}
|
}
|
|
child.clearFocus();
|
child.setPressed(false);
|
mOutlineProvider = previewProvider;
|
|
// The drag bitmap follows the touch point around on the screen
|
final Bitmap b = previewProvider.createDragBitmap();
|
int halfPadding = previewProvider.previewPadding / 2;
|
|
float scale = previewProvider.getScaleAndPosition(b, mTempXY);
|
int dragLayerX = mTempXY[0];
|
int dragLayerY = mTempXY[1];
|
|
DeviceProfile grid = mLauncher.getDeviceProfile();
|
Point dragVisualizeOffset = null;
|
Rect dragRect = null;
|
if (child instanceof BubbleTextView) {
|
dragRect = new Rect();
|
((BubbleTextView) child).getIconBounds(dragRect);
|
dragLayerY += dragRect.top;
|
// Note: The dragRect is used to calculate drag layer offsets, but the
|
// dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
|
dragVisualizeOffset = new Point(- halfPadding, halfPadding);
|
} else if (child instanceof FolderIcon) {
|
int previewSize = grid.folderIconSizePx;
|
dragVisualizeOffset = new Point(- halfPadding, halfPadding - child.getPaddingTop());
|
dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize);
|
} else if (previewProvider instanceof ShortcutDragPreviewProvider) {
|
dragVisualizeOffset = new Point(- halfPadding, halfPadding);
|
}
|
|
// Clear the pressed state if necessary
|
if (child instanceof BubbleTextView) {
|
BubbleTextView icon = (BubbleTextView) child;
|
icon.clearPressedBackground();
|
}
|
|
if (child.getParent() instanceof ShortcutAndWidgetContainer) {
|
mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent();
|
}
|
|
if (child instanceof BubbleTextView && !dragOptions.isAccessibleDrag) {
|
PopupContainerWithArrow popupContainer = PopupContainerWithArrow
|
.showForIcon((BubbleTextView) child);
|
if (popupContainer != null) {
|
dragOptions.preDragCondition = popupContainer.createPreDragCondition();
|
|
mLauncher.getUserEventDispatcher().resetElapsedContainerMillis("dragging started");
|
}
|
}
|
|
DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source,
|
dragObject, dragVisualizeOffset, dragRect, scale * iconScale, scale, dragOptions);
|
dv.setIntrinsicIconScaleFactor(dragOptions.intrinsicIconScaleFactor);
|
return dv;
|
}
|
|
private boolean transitionStateShouldAllowDrop() {
|
return (!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) &&
|
workspaceIconsCanBeDragged();
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public boolean acceptDrop(DragObject d) {
|
// If it's an external drop (e.g. from All Apps), check if it should be accepted
|
CellLayout dropTargetLayout = mDropToLayout;
|
if (d.dragSource != this) {
|
// Don't accept the drop if we're not over a screen at time of drop
|
if (dropTargetLayout == null) {
|
return false;
|
}
|
if (!transitionStateShouldAllowDrop()) return false;
|
|
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
|
|
// We want the point to be mapped to the dragTarget.
|
mapPointFromDropLayout(dropTargetLayout, mDragViewVisualCenter);
|
|
int spanX;
|
int spanY;
|
if (mDragInfo != null) {
|
final CellLayout.CellInfo dragCellInfo = mDragInfo;
|
spanX = dragCellInfo.spanX;
|
spanY = dragCellInfo.spanY;
|
} else {
|
spanX = d.dragInfo.spanX;
|
spanY = d.dragInfo.spanY;
|
}
|
|
int minSpanX = spanX;
|
int minSpanY = spanY;
|
if (d.dragInfo instanceof PendingAddWidgetInfo) {
|
minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX;
|
minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY;
|
}
|
|
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout,
|
mTargetCell);
|
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
|
mDragViewVisualCenter[1], mTargetCell);
|
if (mCreateUserFolderOnDrop && willCreateUserFolder(d.dragInfo,
|
dropTargetLayout, mTargetCell, distance, true)) {
|
return true;
|
}
|
|
if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder(d.dragInfo,
|
dropTargetLayout, mTargetCell, distance)) {
|
return true;
|
}
|
|
int[] resultSpan = new int[2];
|
mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
|
null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP);
|
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
|
|
// Don't accept the drop if there's no room for the item
|
if (!foundCell) {
|
onNoCellFound(dropTargetLayout);
|
return false;
|
}
|
}
|
|
int screenId = getIdForScreen(dropTargetLayout);
|
if (screenId == EXTRA_EMPTY_SCREEN_ID) {
|
commitExtraEmptyScreen();
|
}
|
|
return true;
|
}
|
|
boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell,
|
float distance, boolean considerTimeout) {
|
if (distance > mMaxDistanceForFolderCreation) return false;
|
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
|
return willCreateUserFolder(info, dropOverView, considerTimeout);
|
}
|
|
boolean willCreateUserFolder(ItemInfo info, View dropOverView, boolean considerTimeout) {
|
if (dropOverView != null) {
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
|
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) {
|
return false;
|
}
|
}
|
|
boolean hasntMoved = false;
|
if (mDragInfo != null) {
|
hasntMoved = dropOverView == mDragInfo.cell;
|
}
|
|
if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) {
|
return false;
|
}
|
|
boolean aboveShortcut = (dropOverView.getTag() instanceof WorkspaceItemInfo);
|
boolean willBecomeShortcut =
|
(info.itemType == ITEM_TYPE_APPLICATION ||
|
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT ||
|
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT);
|
|
return (aboveShortcut && willBecomeShortcut);
|
}
|
|
boolean willAddToExistingUserFolder(ItemInfo dragInfo, CellLayout target, int[] targetCell,
|
float distance) {
|
if (distance > mMaxDistanceForFolderCreation) return false;
|
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
|
return willAddToExistingUserFolder(dragInfo, dropOverView);
|
|
}
|
boolean willAddToExistingUserFolder(ItemInfo dragInfo, View dropOverView) {
|
if (dropOverView != null) {
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
|
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) {
|
return false;
|
}
|
}
|
|
if (dropOverView instanceof FolderIcon) {
|
FolderIcon fi = (FolderIcon) dropOverView;
|
if (fi.acceptDrop(dragInfo)) {
|
return true;
|
}
|
}
|
return false;
|
}
|
|
boolean createUserFolderIfNecessary(View newView, int container, CellLayout target,
|
int[] targetCell, float distance, boolean external, DragView dragView) {
|
if (distance > mMaxDistanceForFolderCreation) return false;
|
View v = target.getChildAt(targetCell[0], targetCell[1]);
|
|
boolean hasntMoved = false;
|
if (mDragInfo != null) {
|
CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
|
hasntMoved = (mDragInfo.cellX == targetCell[0] &&
|
mDragInfo.cellY == targetCell[1]) && (cellParent == target);
|
}
|
|
if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false;
|
mCreateUserFolderOnDrop = false;
|
final int screenId = getIdForScreen(target);
|
|
boolean aboveShortcut = (v.getTag() instanceof WorkspaceItemInfo);
|
boolean willBecomeShortcut = (newView.getTag() instanceof WorkspaceItemInfo);
|
|
if (aboveShortcut && willBecomeShortcut) {
|
WorkspaceItemInfo sourceInfo = (WorkspaceItemInfo) newView.getTag();
|
WorkspaceItemInfo destInfo = (WorkspaceItemInfo) v.getTag();
|
// if the drag started here, we need to remove it from the workspace
|
if (!external) {
|
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
|
}
|
|
Rect folderLocation = new Rect();
|
float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
|
target.removeView(v);
|
|
FolderIcon fi =
|
mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]);
|
destInfo.cellX = -1;
|
destInfo.cellY = -1;
|
sourceInfo.cellX = -1;
|
sourceInfo.cellY = -1;
|
|
// If the dragView is null, we can't animate
|
boolean animate = dragView != null;
|
if (animate) {
|
// In order to keep everything continuous, we hand off the currently rendered
|
// folder background to the newly created icon. This preserves animation state.
|
fi.setFolderBackground(mFolderCreateBg);
|
mFolderCreateBg = new PreviewBackground();
|
fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale
|
);
|
} else {
|
fi.prepareCreateAnimation(v);
|
fi.addItem(destInfo);
|
fi.addItem(sourceInfo);
|
}
|
return true;
|
}
|
return false;
|
}
|
|
boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell,
|
float distance, DragObject d, boolean external) {
|
if (distance > mMaxDistanceForFolderCreation) return false;
|
|
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
|
if (!mAddToExistingFolderOnDrop) return false;
|
mAddToExistingFolderOnDrop = false;
|
|
if (dropOverView instanceof FolderIcon) {
|
FolderIcon fi = (FolderIcon) dropOverView;
|
if (fi.acceptDrop(d.dragInfo)) {
|
fi.onDrop(d, false /* itemReturnedOnFailedDrop */);
|
|
// if the drag started here, we need to remove it from the workspace
|
if (!external) {
|
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
|
}
|
return true;
|
}
|
}
|
return false;
|
}
|
|
@Override
|
public void prepareAccessibilityDrop() { }
|
|
public void onDrop(final DragObject d, DragOptions options) {
|
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
|
CellLayout dropTargetLayout = mDropToLayout;
|
|
// We want the point to be mapped to the dragTarget.
|
if (dropTargetLayout != null) {
|
mapPointFromDropLayout(dropTargetLayout, mDragViewVisualCenter);
|
}
|
|
boolean droppedOnOriginalCell = false;
|
|
int snapScreen = -1;
|
boolean resizeOnDrop = false;
|
if (d.dragSource != this || mDragInfo == null) {
|
final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1] };
|
onDropExternal(touchXY, dropTargetLayout, d);
|
} else {
|
final View cell = mDragInfo.cell;
|
boolean droppedOnOriginalCellDuringTransition = false;
|
Runnable onCompleteRunnable = null;
|
|
if (dropTargetLayout != null && !d.cancelled) {
|
// Move internally
|
boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout);
|
boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
|
int container = hasMovedIntoHotseat ?
|
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
|
LauncherSettings.Favorites.CONTAINER_DESKTOP;
|
int screenId = (mTargetCell[0] < 0) ?
|
mDragInfo.screenId : getIdForScreen(dropTargetLayout);
|
int spanX = mDragInfo != null ? mDragInfo.spanX : 1;
|
int spanY = mDragInfo != null ? mDragInfo.spanY : 1;
|
// First we find the cell nearest to point at which the item is
|
// dropped, without any consideration to whether there is an item there.
|
|
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int)
|
mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell);
|
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
|
mDragViewVisualCenter[1], mTargetCell);
|
|
// If the item being dropped is a shortcut and the nearest drop
|
// cell also contains a shortcut, then create a folder with the two shortcuts.
|
if (createUserFolderIfNecessary(cell, container,
|
dropTargetLayout, mTargetCell, distance, false, d.dragView) ||
|
addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
|
distance, d, false)) {
|
mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
|
return;
|
}
|
|
// Aside from the special case where we're dropping a shortcut onto a shortcut,
|
// we need to find the nearest cell location that is vacant
|
ItemInfo item = d.dragInfo;
|
int minSpanX = item.spanX;
|
int minSpanY = item.spanY;
|
if (item.minSpanX > 0 && item.minSpanY > 0) {
|
minSpanX = item.minSpanX;
|
minSpanY = item.minSpanY;
|
}
|
|
droppedOnOriginalCell = item.screenId == screenId && item.container == container
|
&& item.cellX == mTargetCell[0] && item.cellY == mTargetCell[1];
|
droppedOnOriginalCellDuringTransition = droppedOnOriginalCell && mIsSwitchingState;
|
|
// When quickly moving an item, a user may accidentally rearrange their
|
// workspace. So instead we move the icon back safely to its original position.
|
boolean returnToOriginalCellToPreventShuffling = !isFinishedSwitchingState()
|
&& !droppedOnOriginalCellDuringTransition && !dropTargetLayout
|
.isRegionVacant(mTargetCell[0], mTargetCell[1], spanX, spanY);
|
int[] resultSpan = new int[2];
|
if (returnToOriginalCellToPreventShuffling) {
|
mTargetCell[0] = mTargetCell[1] = -1;
|
} else {
|
mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell,
|
mTargetCell, resultSpan, CellLayout.MODE_ON_DROP);
|
}
|
|
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
|
|
// if the widget resizes on drop
|
if (foundCell && (cell instanceof AppWidgetHostView) &&
|
(resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) {
|
resizeOnDrop = true;
|
item.spanX = resultSpan[0];
|
item.spanY = resultSpan[1];
|
AppWidgetHostView awhv = (AppWidgetHostView) cell;
|
AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0],
|
resultSpan[1]);
|
}
|
|
if (foundCell) {
|
if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) {
|
snapScreen = getPageIndexForScreenId(screenId);
|
snapToPage(snapScreen);
|
}
|
|
final ItemInfo info = (ItemInfo) cell.getTag();
|
if (hasMovedLayouts) {
|
// Reparent the view
|
CellLayout parentCell = getParentCellLayoutForView(cell);
|
if (parentCell != null) {
|
parentCell.removeView(cell);
|
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
|
throw new NullPointerException("mDragInfo.cell has null parent");
|
}
|
addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1],
|
info.spanX, info.spanY);
|
}
|
|
// update the item's position after drop
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
|
lp.cellX = lp.tmpCellX = mTargetCell[0];
|
lp.cellY = lp.tmpCellY = mTargetCell[1];
|
lp.cellHSpan = item.spanX;
|
lp.cellVSpan = item.spanY;
|
lp.isLockedToGrid = true;
|
|
if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT &&
|
cell instanceof LauncherAppWidgetHostView) {
|
final CellLayout cellLayout = dropTargetLayout;
|
// We post this call so that the widget has a chance to be placed
|
// in its final location
|
|
final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
|
AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo();
|
if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE
|
&& !d.accessibleDrag) {
|
onCompleteRunnable = new Runnable() {
|
public void run() {
|
if (!isPageInTransition()) {
|
AppWidgetResizeFrame.showForWidget(hostView, cellLayout);
|
}
|
}
|
};
|
}
|
}
|
|
mLauncher.getModelWriter().modifyItemInDatabase(info, container, screenId,
|
lp.cellX, lp.cellY, item.spanX, item.spanY);
|
} else {
|
if (!returnToOriginalCellToPreventShuffling) {
|
onNoCellFound(dropTargetLayout);
|
}
|
|
// If we can't find a drop location, we return the item to its original position
|
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
|
mTargetCell[0] = lp.cellX;
|
mTargetCell[1] = lp.cellY;
|
CellLayout layout = (CellLayout) cell.getParent().getParent();
|
layout.markCellsAsOccupiedForView(cell);
|
}
|
}
|
|
final CellLayout parent = (CellLayout) cell.getParent().getParent();
|
if (d.dragView.hasDrawn()) {
|
if (droppedOnOriginalCellDuringTransition) {
|
// Animate the item to its original position, while simultaneously exiting
|
// spring-loaded mode so the page meets the icon where it was picked up.
|
mLauncher.getDragController().animateDragViewToOriginalPosition(
|
onCompleteRunnable, cell, SPRING_LOADED_TRANSITION_MS);
|
mLauncher.getStateManager().goToState(NORMAL);
|
mLauncher.getDropTargetBar().onDragEnd();
|
parent.onDropChild(cell);
|
return;
|
}
|
final ItemInfo info = (ItemInfo) cell.getTag();
|
boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
|
|| info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
|
if (isWidget) {
|
int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE :
|
ANIMATE_INTO_POSITION_AND_DISAPPEAR;
|
animateWidgetDrop(info, parent, d.dragView, null, animationType, cell, false);
|
} else {
|
int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
|
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
|
this);
|
}
|
} else {
|
d.deferDragViewCleanupPostAnimation = false;
|
cell.setVisibility(VISIBLE);
|
}
|
parent.onDropChild(cell);
|
|
mLauncher.getStateManager().goToState(
|
NORMAL, SPRING_LOADED_EXIT_DELAY, onCompleteRunnable);
|
}
|
|
if (d.stateAnnouncer != null && !droppedOnOriginalCell) {
|
d.stateAnnouncer.completeAction(R.string.item_moved);
|
}
|
}
|
|
public void onNoCellFound(View dropTargetLayout) {
|
int strId = mLauncher.isHotseatLayout(dropTargetLayout)
|
? R.string.hotseat_out_of_space : R.string.out_of_space;
|
Toast.makeText(mLauncher, mLauncher.getString(strId), Toast.LENGTH_SHORT).show();
|
}
|
|
/**
|
* Computes the area relative to dragLayer which is used to display a page.
|
*/
|
public void getPageAreaRelativeToDragLayer(Rect outArea) {
|
CellLayout child = (CellLayout) getChildAt(getNextPage());
|
if (child == null) {
|
return;
|
}
|
|
ShortcutAndWidgetContainer boundingLayout = child.getShortcutsAndWidgets();
|
mLauncher.getDragLayer().getDescendantRectRelativeToSelf(boundingLayout, outArea);
|
}
|
|
@Override
|
public void onDragEnter(DragObject d) {
|
if (ENFORCE_DRAG_EVENT_ORDER) {
|
enforceDragParity("onDragEnter", 1, 1);
|
}
|
|
mCreateUserFolderOnDrop = false;
|
mAddToExistingFolderOnDrop = false;
|
|
mDropToLayout = null;
|
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
|
setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1]);
|
}
|
|
@Override
|
public void onDragExit(DragObject d) {
|
if (ENFORCE_DRAG_EVENT_ORDER) {
|
enforceDragParity("onDragExit", -1, 0);
|
}
|
|
// Here we store the final page that will be dropped to, if the workspace in fact
|
// receives the drop
|
mDropToLayout = mDragTargetLayout;
|
if (mDragMode == DRAG_MODE_CREATE_FOLDER) {
|
mCreateUserFolderOnDrop = true;
|
} else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) {
|
mAddToExistingFolderOnDrop = true;
|
}
|
|
// Reset the previous drag target
|
setCurrentDropLayout(null);
|
setCurrentDragOverlappingLayout(null);
|
|
mSpringLoadedDragController.cancel();
|
}
|
|
private void enforceDragParity(String event, int update, int expectedValue) {
|
enforceDragParity(this, event, update, expectedValue);
|
for (int i = 0; i < getChildCount(); i++) {
|
enforceDragParity(getChildAt(i), event, update, expectedValue);
|
}
|
}
|
|
private void enforceDragParity(View v, String event, int update, int expectedValue) {
|
Object tag = v.getTag(R.id.drag_event_parity);
|
int value = tag == null ? 0 : (Integer) tag;
|
value += update;
|
v.setTag(R.id.drag_event_parity, value);
|
|
if (value != expectedValue) {
|
Log.e(TAG, event + ": Drag contract violated: " + value);
|
}
|
}
|
|
void setCurrentDropLayout(CellLayout layout) {
|
if (mDragTargetLayout != null) {
|
mDragTargetLayout.revertTempState();
|
mDragTargetLayout.onDragExit();
|
}
|
mDragTargetLayout = layout;
|
if (mDragTargetLayout != null) {
|
mDragTargetLayout.onDragEnter();
|
}
|
cleanupReorder(true);
|
cleanupFolderCreation();
|
setCurrentDropOverCell(-1, -1);
|
}
|
|
void setCurrentDragOverlappingLayout(CellLayout layout) {
|
if (mDragOverlappingLayout != null) {
|
mDragOverlappingLayout.setIsDragOverlapping(false);
|
}
|
mDragOverlappingLayout = layout;
|
if (mDragOverlappingLayout != null) {
|
mDragOverlappingLayout.setIsDragOverlapping(true);
|
}
|
// Invalidating the scrim will also force this CellLayout
|
// to be invalidated so that it is highlighted if necessary.
|
mLauncher.getDragLayer().getScrim().invalidate();
|
}
|
|
public CellLayout getCurrentDragOverlappingLayout() {
|
return mDragOverlappingLayout;
|
}
|
|
void setCurrentDropOverCell(int x, int y) {
|
if (x != mDragOverX || y != mDragOverY) {
|
mDragOverX = x;
|
mDragOverY = y;
|
setDragMode(DRAG_MODE_NONE);
|
}
|
}
|
|
void setDragMode(int dragMode) {
|
if (dragMode != mDragMode) {
|
if (dragMode == DRAG_MODE_NONE) {
|
cleanupAddToFolder();
|
// We don't want to cancel the re-order alarm every time the target cell changes
|
// as this feels to slow / unresponsive.
|
cleanupReorder(false);
|
cleanupFolderCreation();
|
} else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) {
|
cleanupReorder(true);
|
cleanupFolderCreation();
|
} else if (dragMode == DRAG_MODE_CREATE_FOLDER) {
|
cleanupAddToFolder();
|
cleanupReorder(true);
|
} else if (dragMode == DRAG_MODE_REORDER) {
|
cleanupAddToFolder();
|
cleanupFolderCreation();
|
}
|
mDragMode = dragMode;
|
}
|
}
|
|
private void cleanupFolderCreation() {
|
if (mFolderCreateBg != null) {
|
mFolderCreateBg.animateToRest();
|
}
|
mFolderCreationAlarm.setOnAlarmListener(null);
|
mFolderCreationAlarm.cancelAlarm();
|
}
|
|
private void cleanupAddToFolder() {
|
if (mDragOverFolderIcon != null) {
|
mDragOverFolderIcon.onDragExit();
|
mDragOverFolderIcon = null;
|
}
|
}
|
|
private void cleanupReorder(boolean cancelAlarm) {
|
// Any pending reorders are canceled
|
if (cancelAlarm) {
|
mReorderAlarm.cancelAlarm();
|
}
|
mLastReorderX = -1;
|
mLastReorderY = -1;
|
}
|
|
/*
|
*
|
* Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
|
* coordinate space. The argument xy is modified with the return result.
|
*/
|
private void mapPointFromSelfToChild(View v, float[] xy) {
|
xy[0] = xy[0] - v.getLeft();
|
xy[1] = xy[1] - v.getTop();
|
}
|
|
boolean isPointInSelfOverHotseat(int x, int y) {
|
mTempFXY[0] = x;
|
mTempFXY[1] = y;
|
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempFXY, true);
|
View hotseat = mLauncher.getHotseat();
|
return mTempFXY[0] >= hotseat.getLeft() &&
|
mTempFXY[0] <= hotseat.getRight() &&
|
mTempFXY[1] >= hotseat.getTop() &&
|
mTempFXY[1] <= hotseat.getBottom();
|
}
|
|
/**
|
* Updates the point in {@param xy} to point to the co-ordinate space of {@param layout}
|
* @param layout either hotseat of a page in workspace
|
* @param xy the point location in workspace co-ordinate space
|
*/
|
private void mapPointFromDropLayout(CellLayout layout, float[] xy) {
|
if (mLauncher.isHotseatLayout(layout)) {
|
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, xy, true);
|
mLauncher.getDragLayer().mapCoordInSelfToDescendant(layout, xy);
|
} else {
|
mapPointFromSelfToChild(layout, xy);
|
}
|
}
|
|
private boolean isDragWidget(DragObject d) {
|
return (d.dragInfo instanceof LauncherAppWidgetInfo ||
|
d.dragInfo instanceof PendingAddWidgetInfo);
|
}
|
|
public void onDragOver(DragObject d) {
|
// Skip drag over events while we are dragging over side pages
|
if (!transitionStateShouldAllowDrop()) return;
|
|
ItemInfo item = d.dragInfo;
|
if (item == null) {
|
if (FeatureFlags.IS_DOGFOOD_BUILD) {
|
throw new NullPointerException("DragObject has null info");
|
}
|
return;
|
}
|
|
// Ensure that we have proper spans for the item that we are dropping
|
if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found");
|
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
|
|
final View child = (mDragInfo == null) ? null : mDragInfo.cell;
|
if (setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1])) {
|
if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
|
mSpringLoadedDragController.cancel();
|
} else {
|
mSpringLoadedDragController.setAlarm(mDragTargetLayout);
|
}
|
}
|
|
// Handle the drag over
|
if (mDragTargetLayout != null) {
|
// We want the point to be mapped to the dragTarget.
|
mapPointFromDropLayout(mDragTargetLayout, mDragViewVisualCenter);
|
|
int minSpanX = item.spanX;
|
int minSpanY = item.spanY;
|
if (item.minSpanX > 0 && item.minSpanY > 0) {
|
minSpanX = item.minSpanX;
|
minSpanY = item.minSpanY;
|
}
|
|
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY,
|
mDragTargetLayout, mTargetCell);
|
int reorderX = mTargetCell[0];
|
int reorderY = mTargetCell[1];
|
|
setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]);
|
|
float targetCellDistance = mDragTargetLayout.getDistanceFromCell(
|
mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell);
|
|
manageFolderFeedback(mDragTargetLayout, mTargetCell, targetCellDistance, d);
|
|
boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int)
|
mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX,
|
item.spanY, child, mTargetCell);
|
|
if (!nearestDropOccupied) {
|
mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider,
|
mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, d);
|
} else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER)
|
&& !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX ||
|
mLastReorderY != reorderY)) {
|
|
int[] resultSpan = new int[2];
|
mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY,
|
child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT);
|
|
// Otherwise, if we aren't adding to or creating a folder and there's no pending
|
// reorder, then we schedule a reorder
|
ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter,
|
minSpanX, minSpanY, item.spanX, item.spanY, d, child);
|
mReorderAlarm.setOnAlarmListener(listener);
|
mReorderAlarm.setAlarm(REORDER_TIMEOUT);
|
}
|
|
if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER ||
|
!nearestDropOccupied) {
|
if (mDragTargetLayout != null) {
|
mDragTargetLayout.revertTempState();
|
}
|
}
|
}
|
}
|
|
/**
|
* Updates {@link #mDragTargetLayout} and {@link #mDragOverlappingLayout}
|
* based on the DragObject's position.
|
*
|
* The layout will be:
|
* - The Hotseat if the drag object is over it
|
* - A side page if we are in spring-loaded mode and the drag object is over it
|
* - The current page otherwise
|
*
|
* @return whether the layout is different from the current {@link #mDragTargetLayout}.
|
*/
|
private boolean setDropLayoutForDragObject(DragObject d, float centerX, float centerY) {
|
CellLayout layout = null;
|
// Test to see if we are over the hotseat first
|
if (mLauncher.getHotseat() != null && !isDragWidget(d)) {
|
if (isPointInSelfOverHotseat(d.x, d.y)) {
|
layout = mLauncher.getHotseat();
|
}
|
}
|
|
int nextPage = getNextPage();
|
if (layout == null && !isPageInTransition()) {
|
// Check if the item is dragged over left page
|
mTempTouchCoordinates[0] = Math.min(centerX, d.x);
|
mTempTouchCoordinates[1] = d.y;
|
layout = verifyInsidePage(nextPage + (mIsRtl ? 1 : -1), mTempTouchCoordinates);
|
}
|
|
if (layout == null && !isPageInTransition()) {
|
// Check if the item is dragged over right page
|
mTempTouchCoordinates[0] = Math.max(centerX, d.x);
|
mTempTouchCoordinates[1] = d.y;
|
layout = verifyInsidePage(nextPage + (mIsRtl ? -1 : 1), mTempTouchCoordinates);
|
}
|
|
// Always pick the current page.
|
if (layout == null && nextPage >= 0 && nextPage < getPageCount()) {
|
layout = (CellLayout) getChildAt(nextPage);
|
}
|
if (layout != mDragTargetLayout) {
|
setCurrentDropLayout(layout);
|
setCurrentDragOverlappingLayout(layout);
|
return true;
|
}
|
return false;
|
}
|
|
/**
|
* Returns the child CellLayout if the point is inside the page coordinates, null otherwise.
|
*/
|
private CellLayout verifyInsidePage(int pageNo, float[] touchXy) {
|
if (pageNo >= 0 && pageNo < getPageCount()) {
|
CellLayout cl = (CellLayout) getChildAt(pageNo);
|
mapPointFromSelfToChild(cl, touchXy);
|
if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
|
touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
|
// This point is inside the cell layout
|
return cl;
|
}
|
}
|
return null;
|
}
|
|
private void manageFolderFeedback(CellLayout targetLayout,
|
int[] targetCell, float distance, DragObject dragObject) {
|
if (distance > mMaxDistanceForFolderCreation) {
|
if (mDragMode != DRAG_MODE_NONE) {
|
setDragMode(DRAG_MODE_NONE);
|
}
|
return;
|
}
|
|
final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], mTargetCell[1]);
|
ItemInfo info = dragObject.dragInfo;
|
boolean userFolderPending = willCreateUserFolder(info, dragOverView, false);
|
if (mDragMode == DRAG_MODE_NONE && userFolderPending &&
|
!mFolderCreationAlarm.alarmPending()) {
|
|
FolderCreationAlarmListener listener = new
|
FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]);
|
|
if (!dragObject.accessibleDrag) {
|
mFolderCreationAlarm.setOnAlarmListener(listener);
|
mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT);
|
} else {
|
listener.onAlarm(mFolderCreationAlarm);
|
}
|
|
if (dragObject.stateAnnouncer != null) {
|
dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper
|
.getDescriptionForDropOver(dragOverView, getContext()));
|
}
|
return;
|
}
|
|
boolean willAddToFolder = willAddToExistingUserFolder(info, dragOverView);
|
if (willAddToFolder && mDragMode == DRAG_MODE_NONE) {
|
mDragOverFolderIcon = ((FolderIcon) dragOverView);
|
mDragOverFolderIcon.onDragEnter(info);
|
if (targetLayout != null) {
|
targetLayout.clearDragOutlines();
|
}
|
setDragMode(DRAG_MODE_ADD_TO_FOLDER);
|
|
if (dragObject.stateAnnouncer != null) {
|
dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper
|
.getDescriptionForDropOver(dragOverView, getContext()));
|
}
|
return;
|
}
|
|
if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) {
|
setDragMode(DRAG_MODE_NONE);
|
}
|
if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) {
|
setDragMode(DRAG_MODE_NONE);
|
}
|
}
|
|
class FolderCreationAlarmListener implements OnAlarmListener {
|
final CellLayout layout;
|
final int cellX;
|
final int cellY;
|
|
final PreviewBackground bg = new PreviewBackground();
|
|
public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
|
this.layout = layout;
|
this.cellX = cellX;
|
this.cellY = cellY;
|
|
BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY);
|
bg.setup(mLauncher, mLauncher, null, cell.getMeasuredWidth(), cell.getPaddingTop());
|
|
// The full preview background should appear behind the icon
|
bg.isClipping = false;
|
}
|
|
public void onAlarm(Alarm alarm) {
|
mFolderCreateBg = bg;
|
mFolderCreateBg.animateToAccept(layout, cellX, cellY);
|
layout.clearDragOutlines();
|
setDragMode(DRAG_MODE_CREATE_FOLDER);
|
}
|
}
|
|
class ReorderAlarmListener implements OnAlarmListener {
|
final float[] dragViewCenter;
|
final int minSpanX, minSpanY, spanX, spanY;
|
final DragObject dragObject;
|
final View child;
|
|
public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX,
|
int spanY, DragObject dragObject, View child) {
|
this.dragViewCenter = dragViewCenter;
|
this.minSpanX = minSpanX;
|
this.minSpanY = minSpanY;
|
this.spanX = spanX;
|
this.spanY = spanY;
|
this.child = child;
|
this.dragObject = dragObject;
|
}
|
|
public void onAlarm(Alarm alarm) {
|
int[] resultSpan = new int[2];
|
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout,
|
mTargetCell);
|
mLastReorderX = mTargetCell[0];
|
mLastReorderY = mTargetCell[1];
|
|
mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
|
child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER);
|
|
if (mTargetCell[0] < 0 || mTargetCell[1] < 0) {
|
mDragTargetLayout.revertTempState();
|
} else {
|
setDragMode(DRAG_MODE_REORDER);
|
}
|
|
boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY;
|
mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider,
|
mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, dragObject);
|
}
|
}
|
|
@Override
|
public void getHitRectRelativeToDragLayer(Rect outRect) {
|
// We want the workspace to have the whole area of the display (it will find the correct
|
// cell layout to drop to in the existing drag/drop logic.
|
mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect);
|
}
|
|
/**
|
* Drop an item that didn't originate on one of the workspace screens.
|
* It may have come from Launcher (e.g. from all apps or customize), or it may have
|
* come from another app altogether.
|
*
|
* NOTE: This can also be called when we are outside of a drag event, when we want
|
* to add an item to one of the workspace screens.
|
*/
|
private void onDropExternal(final int[] touchXY, final CellLayout cellLayout, DragObject d) {
|
if (d.dragInfo instanceof PendingAddShortcutInfo) {
|
WorkspaceItemInfo si = ((PendingAddShortcutInfo) d.dragInfo)
|
.activityInfo.createWorkspaceItemInfo();
|
if (si != null) {
|
d.dragInfo = si;
|
}
|
}
|
|
ItemInfo info = d.dragInfo;
|
int spanX = info.spanX;
|
int spanY = info.spanY;
|
if (mDragInfo != null) {
|
spanX = mDragInfo.spanX;
|
spanY = mDragInfo.spanY;
|
}
|
|
final int container = mLauncher.isHotseatLayout(cellLayout) ?
|
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
|
LauncherSettings.Favorites.CONTAINER_DESKTOP;
|
final int screenId = getIdForScreen(cellLayout);
|
if (!mLauncher.isHotseatLayout(cellLayout)
|
&& screenId != getScreenIdForPageIndex(mCurrentPage)
|
&& !mLauncher.isInState(SPRING_LOADED)) {
|
snapToPage(getPageIndexForScreenId(screenId));
|
}
|
|
if (info instanceof PendingAddItemInfo) {
|
final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) info;
|
|
boolean findNearestVacantCell = true;
|
if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
|
mTargetCell = findNearestArea(touchXY[0], touchXY[1], spanX, spanY,
|
cellLayout, mTargetCell);
|
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
|
mDragViewVisualCenter[1], mTargetCell);
|
if (willCreateUserFolder(d.dragInfo, cellLayout, mTargetCell, distance, true)
|
|| willAddToExistingUserFolder(
|
d.dragInfo, cellLayout, mTargetCell, distance)) {
|
findNearestVacantCell = false;
|
}
|
}
|
|
final ItemInfo item = d.dragInfo;
|
boolean updateWidgetSize = false;
|
if (findNearestVacantCell) {
|
int minSpanX = item.spanX;
|
int minSpanY = item.spanY;
|
if (item.minSpanX > 0 && item.minSpanY > 0) {
|
minSpanX = item.minSpanX;
|
minSpanY = item.minSpanY;
|
}
|
int[] resultSpan = new int[2];
|
mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY,
|
null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL);
|
|
if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) {
|
updateWidgetSize = true;
|
}
|
item.spanX = resultSpan[0];
|
item.spanY = resultSpan[1];
|
}
|
|
Runnable onAnimationCompleteRunnable = new Runnable() {
|
@Override
|
public void run() {
|
// Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when
|
// adding an item that may not be dropped right away (due to a config activity)
|
// we defer the removal until the activity returns.
|
deferRemoveExtraEmptyScreen();
|
|
// When dragging and dropping from customization tray, we deal with creating
|
// widgets/shortcuts/folders in a slightly different way
|
mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell,
|
item.spanX, item.spanY);
|
}
|
};
|
boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
|
|| pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
|
|
AppWidgetHostView finalView = isWidget ?
|
((PendingAddWidgetInfo) pendingInfo).boundWidget : null;
|
|
if (finalView != null && updateWidgetSize) {
|
AppWidgetResizeFrame.updateWidgetSizeRanges(finalView, mLauncher, item.spanX,
|
item.spanY);
|
}
|
|
int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR;
|
if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null &&
|
((PendingAddWidgetInfo) pendingInfo).getHandler().needsConfigure()) {
|
animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN;
|
}
|
animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable,
|
animationStyle, finalView, true);
|
} else {
|
// This is for other drag/drop cases, like dragging from All Apps
|
mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
|
|
View view;
|
|
switch (info.itemType) {
|
case ITEM_TYPE_APPLICATION:
|
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
|
case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
|
if (info.container == NO_ID && info instanceof AppInfo) {
|
// Came from all apps -- make a copy
|
info = ((AppInfo) info).makeWorkspaceItem();
|
d.dragInfo = info;
|
}
|
view = mLauncher.createShortcut(cellLayout, (WorkspaceItemInfo) info);
|
break;
|
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
|
view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
|
(FolderInfo) info);
|
break;
|
default:
|
throw new IllegalStateException("Unknown item type: " + info.itemType);
|
}
|
|
// First we find the cell nearest to point at which the item is
|
// dropped, without any consideration to whether there is an item there.
|
if (touchXY != null) {
|
mTargetCell = findNearestArea(touchXY[0], touchXY[1], spanX, spanY,
|
cellLayout, mTargetCell);
|
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
|
mDragViewVisualCenter[1], mTargetCell);
|
if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance,
|
true, d.dragView)) {
|
return;
|
}
|
if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d,
|
true)) {
|
return;
|
}
|
}
|
|
if (touchXY != null) {
|
// when dragging and dropping, just find the closest free spot
|
mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0],
|
(int) mDragViewVisualCenter[1], 1, 1, 1, 1,
|
null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL);
|
} else {
|
cellLayout.findCellForSpan(mTargetCell, 1, 1);
|
}
|
// Add the item to DB before adding to screen ensures that the container and other
|
// values of the info is properly updated.
|
mLauncher.getModelWriter().addOrMoveItemInDatabase(info, container, screenId,
|
mTargetCell[0], mTargetCell[1]);
|
|
addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1],
|
info.spanX, info.spanY);
|
cellLayout.onDropChild(view);
|
cellLayout.getShortcutsAndWidgets().measureChild(view);
|
|
if (d.dragView != null) {
|
// We wrap the animation call in the temporary set and reset of the current
|
// cellLayout to its final transform -- this means we animate the drag view to
|
// the correct final location.
|
setFinalTransitionTransform();
|
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, this);
|
resetTransitionTransform();
|
}
|
}
|
}
|
|
public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) {
|
int[] unScaledSize = estimateItemSize(widgetInfo);
|
int visibility = layout.getVisibility();
|
layout.setVisibility(VISIBLE);
|
|
int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY);
|
int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY);
|
Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1],
|
Bitmap.Config.ARGB_8888);
|
layout.measure(width, height);
|
layout.layout(0, 0, unScaledSize[0], unScaledSize[1]);
|
layout.draw(new Canvas(b));
|
layout.setVisibility(visibility);
|
return b;
|
}
|
|
private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY,
|
DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, boolean scale) {
|
// Now we animate the dragView, (ie. the widget or shortcut preview) into its final
|
// location and size on the home screen.
|
int spanX = info.spanX;
|
int spanY = info.spanY;
|
|
Rect r = estimateItemPosition(layout, targetCell[0], targetCell[1], spanX, spanY);
|
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) {
|
DeviceProfile profile = mLauncher.getDeviceProfile();
|
Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y);
|
}
|
|
mTempFXY[0] = r.left;
|
mTempFXY[1] = r.top;
|
setFinalTransitionTransform();
|
float cellLayoutScale =
|
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, mTempFXY, true);
|
resetTransitionTransform();
|
Utilities.roundArray(mTempFXY, loc);
|
|
if (scale) {
|
float dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth();
|
float dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight();
|
|
// The animation will scale the dragView about its center, so we need to center about
|
// the final location.
|
loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2
|
- Math.ceil(layout.getUnusedHorizontalSpace() / 2f);
|
loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2;
|
scaleXY[0] = dragViewScaleX * cellLayoutScale;
|
scaleXY[1] = dragViewScaleY * cellLayoutScale;
|
} else {
|
// Since we are not cross-fading the dragView, align the drag view to the
|
// final cell position.
|
float dragScale = dragView.getInitialScale() * cellLayoutScale;
|
loc[0] += (dragScale - 1) * dragView.getWidth() / 2;
|
loc[1] += (dragScale - 1) * dragView.getHeight() / 2;
|
scaleXY[0] = scaleXY[1] = dragScale;
|
|
// If a dragRegion was provided, offset the final position accordingly.
|
Rect dragRegion = dragView.getDragRegion();
|
if (dragRegion != null) {
|
loc[0] += cellLayoutScale * dragRegion.left;
|
loc[1] += cellLayoutScale * dragRegion.top;
|
}
|
}
|
}
|
|
public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, final DragView dragView,
|
final Runnable onCompleteRunnable, int animationType, final View finalView,
|
boolean external) {
|
Rect from = new Rect();
|
mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from);
|
|
int[] finalPos = new int[2];
|
float scaleXY[] = new float[2];
|
boolean scalePreview = !(info instanceof PendingAddShortcutInfo);
|
getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell,
|
scalePreview);
|
|
Resources res = mLauncher.getResources();
|
final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200;
|
|
boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET ||
|
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
|
if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) {
|
Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView);
|
dragView.setCrossFadeBitmap(crossFadeBitmap);
|
dragView.crossFade((int) (duration * 0.8f));
|
} else if (isWidget && external) {
|
scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]);
|
}
|
|
DragLayer dragLayer = mLauncher.getDragLayer();
|
if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) {
|
mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f,
|
DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration);
|
} else {
|
int endStyle;
|
if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) {
|
endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE;
|
} else {
|
endStyle = DragLayer.ANIMATION_END_DISAPPEAR;
|
}
|
|
Runnable onComplete = new Runnable() {
|
@Override
|
public void run() {
|
if (finalView != null) {
|
finalView.setVisibility(VISIBLE);
|
}
|
if (onCompleteRunnable != null) {
|
onCompleteRunnable.run();
|
}
|
}
|
};
|
dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0],
|
finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle,
|
duration, this);
|
}
|
}
|
|
public void setFinalTransitionTransform() {
|
if (isSwitchingState()) {
|
mCurrentScale = getScaleX();
|
setScaleX(mStateTransitionAnimation.getFinalScale());
|
setScaleY(mStateTransitionAnimation.getFinalScale());
|
}
|
}
|
public void resetTransitionTransform() {
|
if (isSwitchingState()) {
|
setScaleX(mCurrentScale);
|
setScaleY(mCurrentScale);
|
}
|
}
|
|
/**
|
* Return the current CellInfo describing our current drag; this method exists
|
* so that Launcher can sync this object with the correct info when the activity is created/
|
* destroyed
|
*
|
*/
|
public CellLayout.CellInfo getDragInfo() {
|
return mDragInfo;
|
}
|
|
/**
|
* Calculate the nearest cell where the given object would be dropped.
|
*
|
* pixelX and pixelY should be in the coordinate system of layout
|
*/
|
@Thunk int[] findNearestArea(int pixelX, int pixelY,
|
int spanX, int spanY, CellLayout layout, int[] recycle) {
|
return layout.findNearestArea(
|
pixelX, pixelY, spanX, spanY, recycle);
|
}
|
|
void setup(DragController dragController) {
|
mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
|
mDragController = dragController;
|
|
// hardware layers on children are enabled on startup, but should be disabled until
|
// needed
|
updateChildrenLayersEnabled();
|
}
|
|
/**
|
* Called at the end of a drag which originated on the workspace.
|
*/
|
public void onDropCompleted(final View target, final DragObject d,
|
final boolean success) {
|
if (success) {
|
if (target != this && mDragInfo != null) {
|
removeWorkspaceItem(mDragInfo.cell);
|
}
|
} else if (mDragInfo != null) {
|
final CellLayout cellLayout = mLauncher.getCellLayout(
|
mDragInfo.container, mDragInfo.screenId);
|
if (cellLayout != null) {
|
cellLayout.onDropChild(mDragInfo.cell);
|
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
|
throw new RuntimeException("Invalid state: cellLayout == null in "
|
+ "Workspace#onDropCompleted. Please file a bug. ");
|
}
|
}
|
View cell = getHomescreenIconByItemId(d.originalDragInfo.id);
|
if (d.cancelled && cell != null) {
|
cell.setVisibility(VISIBLE);
|
}
|
mDragInfo = null;
|
}
|
|
/**
|
* For opposite operation. See {@link #addInScreen}.
|
*/
|
public void removeWorkspaceItem(View v) {
|
CellLayout parentCell = getParentCellLayoutForView(v);
|
if (parentCell != null) {
|
parentCell.removeView(v);
|
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
|
// When an app is uninstalled using the drop target, we wait until resume to remove
|
// the icon. We also remove all the corresponding items from the workspace at
|
// {@link Launcher#bindComponentsRemoved}. That call can come before or after
|
// {@link Launcher#mOnResumeCallbacks} depending on how busy the worker thread is.
|
Log.e(TAG, "mDragInfo.cell has null parent");
|
}
|
if (v instanceof DropTarget) {
|
mDragController.removeDropTarget((DropTarget) v);
|
}
|
}
|
|
/**
|
* Removes all folder listeners
|
*/
|
public void removeFolderListeners() {
|
mapOverItems(false, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View view) {
|
if (view instanceof FolderIcon) {
|
((FolderIcon) view).removeListeners();
|
}
|
return false;
|
}
|
});
|
}
|
|
public boolean isDropEnabled() {
|
return true;
|
}
|
|
@Override
|
protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
|
// We don't dispatch restoreInstanceState to our children using this code path.
|
// Some pages will be restored immediately as their items are bound immediately, and
|
// others we will need to wait until after their items are bound.
|
mSavedStates = container;
|
}
|
|
public void restoreInstanceStateForChild(int child) {
|
if (mSavedStates != null) {
|
mRestoredPages.add(child);
|
CellLayout cl = (CellLayout) getChildAt(child);
|
if (cl != null) {
|
cl.restoreInstanceState(mSavedStates);
|
}
|
}
|
}
|
|
public void restoreInstanceStateForRemainingPages() {
|
int count = getChildCount();
|
for (int i = 0; i < count; i++) {
|
if (!mRestoredPages.contains(i)) {
|
restoreInstanceStateForChild(i);
|
}
|
}
|
mRestoredPages.clear();
|
mSavedStates = null;
|
}
|
|
@Override
|
public boolean scrollLeft() {
|
boolean result = false;
|
if (!workspaceInModalState() && !mIsSwitchingState) {
|
result = super.scrollLeft();
|
}
|
Folder openFolder = Folder.getOpen(mLauncher);
|
if (openFolder != null) {
|
openFolder.completeDragExit();
|
}
|
return result;
|
}
|
|
@Override
|
public boolean scrollRight() {
|
boolean result = false;
|
if (!workspaceInModalState() && !mIsSwitchingState) {
|
result = super.scrollRight();
|
}
|
Folder openFolder = Folder.getOpen(mLauncher);
|
if (openFolder != null) {
|
openFolder.completeDragExit();
|
}
|
return result;
|
}
|
|
/**
|
* Returns a specific CellLayout
|
*/
|
CellLayout getParentCellLayoutForView(View v) {
|
for (CellLayout layout : getWorkspaceAndHotseatCellLayouts()) {
|
if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) {
|
return layout;
|
}
|
}
|
return null;
|
}
|
|
/**
|
* Returns a list of all the CellLayouts on the Homescreen.
|
*/
|
private CellLayout[] getWorkspaceAndHotseatCellLayouts() {
|
int screenCount = getChildCount();
|
final CellLayout[] layouts;
|
if (mLauncher.getHotseat() != null) {
|
layouts = new CellLayout[screenCount + 1];
|
layouts[screenCount] = mLauncher.getHotseat();
|
} else {
|
layouts = new CellLayout[screenCount];
|
}
|
for (int screen = 0; screen < screenCount; screen++) {
|
layouts[screen] = (CellLayout) getChildAt(screen);
|
}
|
return layouts;
|
}
|
|
/**
|
* Similar to {@link #getFirstMatch} but optimized to finding a suitable view for the app close
|
* animation.
|
*
|
* @param packageName The package name of the app to match.
|
* @param user The user of the app to match.
|
*/
|
public View getFirstMatchForAppClose(String packageName, UserHandle user) {
|
final int curPage = getCurrentPage();
|
final CellLayout currentPage = (CellLayout) getPageAt(curPage);
|
final Workspace.ItemOperator packageAndUser = (ItemInfo info, View view) -> info != null
|
&& info.getTargetComponent() != null
|
&& TextUtils.equals(info.getTargetComponent().getPackageName(), packageName)
|
&& info.user.equals(user);
|
final Workspace.ItemOperator packageAndUserAndApp = (ItemInfo info, View view) ->
|
packageAndUser.evaluate(info, view) && info.itemType == ITEM_TYPE_APPLICATION;
|
final Workspace.ItemOperator packageAndUserAndAppInFolder = (info, view) -> {
|
if (info instanceof FolderInfo) {
|
FolderInfo folderInfo = (FolderInfo) info;
|
for (WorkspaceItemInfo shortcutInfo : folderInfo.contents) {
|
if (packageAndUserAndApp.evaluate(shortcutInfo, view)) {
|
return true;
|
}
|
}
|
}
|
return false;
|
};
|
|
// Order: App icons, app in folder. Items in hotseat get returned first.
|
if (ADAPTIVE_ICON_WINDOW_ANIM.get()) {
|
return getFirstMatch(new CellLayout[] { getHotseat(), currentPage },
|
packageAndUserAndApp, packageAndUserAndAppInFolder);
|
} else {
|
// Do not use Folder as a criteria, since it'll cause a crash when trying to draw
|
// FolderAdaptiveIcon as the background.
|
return getFirstMatch(new CellLayout[] { getHotseat(), currentPage },
|
packageAndUserAndApp);
|
}
|
}
|
|
public View getHomescreenIconByItemId(final int id) {
|
return getFirstMatch((info, v) -> info != null && info.id == id);
|
}
|
|
public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) {
|
return (LauncherAppWidgetHostView) getFirstMatch((info, v) ->
|
(info instanceof LauncherAppWidgetInfo) &&
|
((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId);
|
}
|
|
public View getFirstMatch(final ItemOperator operator) {
|
final View[] value = new View[1];
|
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (operator.evaluate(info, v)) {
|
value[0] = v;
|
return true;
|
}
|
return false;
|
}
|
});
|
return value[0];
|
}
|
|
/**
|
* @param cellLayouts List of CellLayouts to scan, in order of preference.
|
* @param operators List of operators, in order starting from best matching operator.
|
* @return
|
*/
|
private View getFirstMatch(CellLayout[] cellLayouts, final ItemOperator... operators) {
|
// This array is filled with the first match for each operator.
|
final View[] matches = new View[operators.length];
|
// For efficiency, the outer loop should be CellLayout.
|
for (CellLayout cellLayout : cellLayouts) {
|
mapOverCellLayout(MAP_NO_RECURSE, cellLayout, (info, v) -> {
|
for (int i = 0; i < operators.length; ++i) {
|
if (matches[i] == null && operators[i].evaluate(info, v)) {
|
matches[i] = v;
|
if (i == 0) {
|
// We can return since this is the best match possible.
|
return true;
|
}
|
}
|
}
|
return false;
|
});
|
if (matches[0] != null) {
|
break;
|
}
|
}
|
for (View match : matches) {
|
if (match != null) {
|
return match;
|
}
|
}
|
return null;
|
}
|
|
void clearDropTargets() {
|
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (v instanceof DropTarget) {
|
mDragController.removeDropTarget((DropTarget) v);
|
}
|
// not done, process all the shortcuts
|
return false;
|
}
|
});
|
}
|
|
/**
|
* Removes items that match the {@param matcher}. When applications are removed
|
* as a part of an update, this is called to ensure that other widgets and application
|
* shortcuts are not removed.
|
*/
|
public void removeItemsByMatcher(final ItemInfoMatcher matcher) {
|
for (final CellLayout layoutParent: getWorkspaceAndHotseatCellLayouts()) {
|
final ViewGroup layout = layoutParent.getShortcutsAndWidgets();
|
|
IntSparseArrayMap<View> idToViewMap = new IntSparseArrayMap<>();
|
ArrayList<ItemInfo> items = new ArrayList<>();
|
for (int j = 0; j < layout.getChildCount(); j++) {
|
final View view = layout.getChildAt(j);
|
if (view.getTag() instanceof ItemInfo) {
|
ItemInfo item = (ItemInfo) view.getTag();
|
items.add(item);
|
idToViewMap.put(item.id, view);
|
}
|
}
|
|
for (ItemInfo itemToRemove : matcher.filterItemInfos(items)) {
|
View child = idToViewMap.get(itemToRemove.id);
|
|
if (child != null) {
|
// Note: We can not remove the view directly from CellLayoutChildren as this
|
// does not re-mark the spaces as unoccupied.
|
layoutParent.removeViewInLayout(child);
|
if (child instanceof DropTarget) {
|
mDragController.removeDropTarget((DropTarget) child);
|
}
|
} else if (itemToRemove.container >= 0) {
|
// The item may belong to a folder.
|
View parent = idToViewMap.get(itemToRemove.container);
|
if (parent != null) {
|
FolderInfo folderInfo = (FolderInfo) parent.getTag();
|
folderInfo.prepareAutoUpdate();
|
folderInfo.remove((WorkspaceItemInfo) itemToRemove, false);
|
}
|
}
|
}
|
}
|
|
// Strip all the empty screens
|
stripEmptyScreens();
|
}
|
|
public interface ItemOperator {
|
/**
|
* Process the next itemInfo, possibly with side-effect on the next item.
|
*
|
* @param info info for the shortcut
|
* @param view view for the shortcut
|
* @return true if done, false to continue the map
|
*/
|
boolean evaluate(ItemInfo info, View view);
|
}
|
|
/**
|
* Map the operator over the shortcuts and widgets, return the first-non-null value.
|
*
|
* @param recurse true: iterate over folder children. false: op get the folders themselves.
|
* @param op the operator to map over the shortcuts
|
*/
|
public void mapOverItems(boolean recurse, ItemOperator op) {
|
for (CellLayout layout : getWorkspaceAndHotseatCellLayouts()) {
|
if (mapOverCellLayout(recurse, layout, op)) {
|
return;
|
}
|
}
|
}
|
|
private boolean mapOverCellLayout(boolean recurse, CellLayout layout, ItemOperator op) {
|
// TODO(b/128460496) Potential race condition where layout is not yet loaded
|
if (layout == null) {
|
return false;
|
}
|
ShortcutAndWidgetContainer container = layout.getShortcutsAndWidgets();
|
// map over all the shortcuts on the workspace
|
final int itemCount = container.getChildCount();
|
for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
|
View item = container.getChildAt(itemIdx);
|
ItemInfo info = (ItemInfo) item.getTag();
|
if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) {
|
FolderIcon folder = (FolderIcon) item;
|
ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder();
|
// map over all the children in the folder
|
final int childCount = folderChildren.size();
|
for (int childIdx = 0; childIdx < childCount; childIdx++) {
|
View child = folderChildren.get(childIdx);
|
info = (ItemInfo) child.getTag();
|
if (op.evaluate(info, child)) {
|
return true;
|
}
|
}
|
} else {
|
if (op.evaluate(info, item)) {
|
return true;
|
}
|
}
|
}
|
return false;
|
}
|
|
void updateShortcuts(ArrayList<WorkspaceItemInfo> shortcuts) {
|
int total = shortcuts.size();
|
final HashSet<WorkspaceItemInfo> updates = new HashSet<>(total);
|
final IntSet folderIds = new IntSet();
|
|
for (int i = 0; i < total; i++) {
|
WorkspaceItemInfo s = shortcuts.get(i);
|
updates.add(s);
|
folderIds.add(s.container);
|
}
|
|
mapOverItems(MAP_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView &&
|
updates.contains(info)) {
|
WorkspaceItemInfo si = (WorkspaceItemInfo) info;
|
BubbleTextView shortcut = (BubbleTextView) v;
|
Drawable oldIcon = shortcut.getIcon();
|
boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable)
|
&& ((PreloadIconDrawable) oldIcon).hasNotCompleted();
|
shortcut.applyFromWorkspaceItem(si, si.isPromise() != oldPromiseState);
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
|
// Update folder icons
|
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (info instanceof FolderInfo && folderIds.contains(info.id)) {
|
((FolderInfo) info).itemsChanged(false);
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
}
|
|
public void updateNotificationDots(Predicate<PackageUserKey> updatedDots) {
|
final PackageUserKey packageUserKey = new PackageUserKey(null, null);
|
final IntSet folderIds = new IntSet();
|
mapOverItems(MAP_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView) {
|
if (!packageUserKey.updateFromItemInfo(info)
|
|| updatedDots.test(packageUserKey)) {
|
((BubbleTextView) v).applyDotState(info, true /* animate */);
|
folderIds.add(info.container);
|
}
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
|
// Update folder icons
|
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (info instanceof FolderInfo && folderIds.contains(info.id)
|
&& v instanceof FolderIcon) {
|
FolderDotInfo folderDotInfo = new FolderDotInfo();
|
for (WorkspaceItemInfo si : ((FolderInfo) info).contents) {
|
folderDotInfo.addDotInfo(mLauncher.getDotInfoForItem(si));
|
}
|
((FolderIcon) v).setDotInfo(folderDotInfo);
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
}
|
|
public void removeAbandonedPromise(String packageName, UserHandle user) {
|
HashSet<String> packages = new HashSet<>(1);
|
packages.add(packageName);
|
ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packages, user);
|
mLauncher.getModelWriter().deleteItemsFromDatabase(matcher);
|
removeItemsByMatcher(matcher);
|
}
|
|
public void updateRestoreItems(final HashSet<ItemInfo> updates) {
|
mapOverItems(MAP_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View v) {
|
if (info instanceof WorkspaceItemInfo && v instanceof BubbleTextView
|
&& updates.contains(info)) {
|
((BubbleTextView) v).applyPromiseState(false /* promiseStateChanged */);
|
} else if (v instanceof PendingAppWidgetHostView
|
&& info instanceof LauncherAppWidgetInfo
|
&& updates.contains(info)) {
|
((PendingAppWidgetHostView) v).applyState();
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
}
|
|
public void widgetsRestored(final ArrayList<LauncherAppWidgetInfo> changedInfo) {
|
if (!changedInfo.isEmpty()) {
|
DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo,
|
mLauncher.getAppWidgetHost());
|
|
LauncherAppWidgetInfo item = changedInfo.get(0);
|
final AppWidgetProviderInfo widgetInfo;
|
if (item.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID)) {
|
widgetInfo = AppWidgetManagerCompat
|
.getInstance(mLauncher).findProvider(item.providerName, item.user);
|
} else {
|
widgetInfo = AppWidgetManagerCompat.getInstance(mLauncher)
|
.getLauncherAppWidgetInfo(item.appWidgetId);
|
}
|
|
if (widgetInfo != null) {
|
// Re-inflate the widgets which have changed status
|
widgetRefresh.run();
|
} else {
|
// widgetRefresh will automatically run when the packages are updated.
|
// For now just update the progress bars
|
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
|
@Override
|
public boolean evaluate(ItemInfo info, View view) {
|
if (view instanceof PendingAppWidgetHostView
|
&& changedInfo.contains(info)) {
|
((LauncherAppWidgetInfo) info).installProgress = 100;
|
((PendingAppWidgetHostView) view).applyState();
|
}
|
// process all the shortcuts
|
return false;
|
}
|
});
|
}
|
}
|
}
|
|
void moveToDefaultScreen() {
|
int page = DEFAULT_PAGE;
|
if (!workspaceInModalState() && getNextPage() != page) {
|
snapToPage(page);
|
}
|
View child = getChildAt(page);
|
if (child != null) {
|
child.requestFocus();
|
}
|
}
|
|
@Override
|
public int getExpectedHeight() {
|
return getMeasuredHeight() <= 0 || !mIsLayoutValid
|
? mLauncher.getDeviceProfile().heightPx : getMeasuredHeight();
|
}
|
|
@Override
|
public int getExpectedWidth() {
|
return getMeasuredWidth() <= 0 || !mIsLayoutValid
|
? mLauncher.getDeviceProfile().widthPx : getMeasuredWidth();
|
}
|
|
@Override
|
protected boolean canAnnouncePageDescription() {
|
// Disable announcements while overscrolling potentially to overlay screen because if we end
|
// up on the overlay screen, it will take care of announcing itself.
|
return Float.compare(mOverlayTranslation, 0f) == 0;
|
}
|
|
@Override
|
protected String getCurrentPageDescription() {
|
int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
|
return getPageDescription(page);
|
}
|
|
private String getPageDescription(int page) {
|
int nScreens = getChildCount();
|
int extraScreenId = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
|
if (extraScreenId >= 0 && nScreens > 1) {
|
if (page == extraScreenId) {
|
return getContext().getString(R.string.workspace_new_page);
|
}
|
nScreens--;
|
}
|
if (nScreens == 0) {
|
// When the workspace is not loaded, we do not know how many screen will be bound.
|
return getContext().getString(R.string.all_apps_home_button_label);
|
}
|
return getContext().getString(R.string.workspace_scroll_format, page + 1, nScreens);
|
}
|
|
@Override
|
public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) {
|
target.gridX = info.cellX;
|
target.gridY = info.cellY;
|
target.pageIndex = getCurrentPage();
|
targetParent.containerType = ContainerType.WORKSPACE;
|
if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
|
target.rank = info.rank;
|
targetParent.containerType = ContainerType.HOTSEAT;
|
} else if (info.container >= 0) {
|
targetParent.containerType = ContainerType.FOLDER;
|
}
|
}
|
|
/**
|
* Used as a workaround to ensure that the AppWidgetService receives the
|
* PACKAGE_ADDED broadcast before updating widgets.
|
*/
|
private class DeferredWidgetRefresh implements Runnable, ProviderChangedListener {
|
private final ArrayList<LauncherAppWidgetInfo> mInfos;
|
private final LauncherAppWidgetHost mHost;
|
private final Handler mHandler;
|
|
private boolean mRefreshPending;
|
|
DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos,
|
LauncherAppWidgetHost host) {
|
mInfos = infos;
|
mHost = host;
|
mHandler = mLauncher.mHandler;
|
mRefreshPending = true;
|
|
mHost.addProviderChangeListener(this);
|
// Force refresh after 10 seconds, if we don't get the provider changed event.
|
// This could happen when the provider is no longer available in the app.
|
Message msg = Message.obtain(mHandler, this);
|
msg.obj = DeferredWidgetRefresh.class;
|
mHandler.sendMessageDelayed(msg, 10000);
|
}
|
|
@Override
|
public void run() {
|
mHost.removeProviderChangeListener(this);
|
mHandler.removeCallbacks(this);
|
|
if (!mRefreshPending) {
|
return;
|
}
|
|
mRefreshPending = false;
|
|
ArrayList<PendingAppWidgetHostView> views = new ArrayList<>(mInfos.size());
|
mapOverItems(MAP_NO_RECURSE, (info, view) -> {
|
if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) {
|
views.add((PendingAppWidgetHostView) view);
|
}
|
// process all children
|
return false;
|
});
|
for (PendingAppWidgetHostView view : views) {
|
view.reInflate();
|
}
|
}
|
|
@Override
|
public void notifyWidgetProvidersChanged() {
|
run();
|
}
|
}
|
|
private class StateTransitionListener extends AnimatorListenerAdapter
|
implements AnimatorUpdateListener {
|
|
private final LauncherState mToState;
|
|
StateTransitionListener(LauncherState toState) {
|
mToState = toState;
|
}
|
|
@Override
|
public void onAnimationUpdate(ValueAnimator anim) {
|
mTransitionProgress = anim.getAnimatedFraction();
|
}
|
|
@Override
|
public void onAnimationStart(Animator animation) {
|
onStartStateTransition(mToState);
|
}
|
|
@Override
|
public void onAnimationEnd(Animator animation) {
|
onEndStateTransition();
|
}
|
}
|
}
|
