/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. 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 distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui.statusbar.phone;
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import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
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import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_3BUTTON;
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import android.annotation.Nullable;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.graphics.drawable.Icon;
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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.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import android.widget.LinearLayout;
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import android.widget.Space;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.systemui.Dependency;
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import com.android.systemui.R;
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import com.android.systemui.recents.OverviewProxyService;
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import com.android.systemui.shared.system.QuickStepContract;
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import com.android.systemui.statusbar.phone.ReverseLinearLayout.ReverseRelativeLayout;
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import com.android.systemui.statusbar.policy.KeyButtonView;
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import java.util.Objects;
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public class NavigationBarInflaterView extends FrameLayout
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implements NavigationModeController.ModeChangedListener {
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private static final String TAG = "NavBarInflater";
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public static final String NAV_BAR_VIEWS = "sysui_nav_bar";
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public static final String NAV_BAR_LEFT = "sysui_nav_bar_left";
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public static final String NAV_BAR_RIGHT = "sysui_nav_bar_right";
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public static final String MENU_IME_ROTATE = "menu_ime";
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public static final String BACK = "back";
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public static final String HOME = "home";
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public static final String RECENT = "recent";
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public static final String NAVSPACE = "space";
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public static final String CLIPBOARD = "clipboard";
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public static final String HOME_HANDLE = "home_handle";
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public static final String KEY = "key";
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public static final String LEFT = "left";
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public static final String RIGHT = "right";
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public static final String CONTEXTUAL = "contextual";
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public static final String IME_SWITCHER = "ime_switcher";
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public static final String GRAVITY_SEPARATOR = ";";
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public static final String BUTTON_SEPARATOR = ",";
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public static final String SIZE_MOD_START = "[";
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public static final String SIZE_MOD_END = "]";
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public static final String KEY_CODE_START = "(";
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public static final String KEY_IMAGE_DELIM = ":";
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public static final String KEY_CODE_END = ")";
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private static final String WEIGHT_SUFFIX = "W";
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private static final String WEIGHT_CENTERED_SUFFIX = "WC";
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private static final String ABSOLUTE_SUFFIX = "A";
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private static final String ABSOLUTE_VERTICAL_CENTERED_SUFFIX = "C";
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protected LayoutInflater mLayoutInflater;
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protected LayoutInflater mLandscapeInflater;
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protected FrameLayout mHorizontal;
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protected FrameLayout mVertical;
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@VisibleForTesting
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SparseArray<ButtonDispatcher> mButtonDispatchers;
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private String mCurrentLayout;
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private View mLastPortrait;
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private View mLastLandscape;
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private boolean mIsVertical;
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private boolean mAlternativeOrder;
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private boolean mUsingCustomLayout;
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private OverviewProxyService mOverviewProxyService;
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private int mNavBarMode = NAV_BAR_MODE_3BUTTON;
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public NavigationBarInflaterView(Context context, AttributeSet attrs) {
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super(context, attrs);
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createInflaters();
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mOverviewProxyService = Dependency.get(OverviewProxyService.class);
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mNavBarMode = Dependency.get(NavigationModeController.class).addListener(this);
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}
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@VisibleForTesting
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void createInflaters() {
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mLayoutInflater = LayoutInflater.from(mContext);
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Configuration landscape = new Configuration();
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landscape.setTo(mContext.getResources().getConfiguration());
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landscape.orientation = Configuration.ORIENTATION_LANDSCAPE;
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mLandscapeInflater = LayoutInflater.from(mContext.createConfigurationContext(landscape));
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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inflateChildren();
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clearViews();
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inflateLayout(getDefaultLayout());
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}
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private void inflateChildren() {
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removeAllViews();
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mHorizontal = (FrameLayout) mLayoutInflater.inflate(R.layout.navigation_layout,
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this /* root */, false /* attachToRoot */);
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addView(mHorizontal);
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mVertical = (FrameLayout) mLayoutInflater.inflate(R.layout.navigation_layout_vertical,
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this /* root */, false /* attachToRoot */);
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addView(mVertical);
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updateAlternativeOrder();
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}
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protected String getDefaultLayout() {
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final int defaultResource = QuickStepContract.isGesturalMode(mNavBarMode)
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? R.string.config_navBarLayoutHandle
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: mOverviewProxyService.shouldShowSwipeUpUI()
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? R.string.config_navBarLayoutQuickstep
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: R.string.config_navBarLayout;
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return getContext().getString(defaultResource);
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}
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@Override
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public void onNavigationModeChanged(int mode) {
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mNavBarMode = mode;
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onLikelyDefaultLayoutChange();
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}
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@Override
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protected void onDetachedFromWindow() {
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Dependency.get(NavigationModeController.class).removeListener(this);
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super.onDetachedFromWindow();
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}
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public void setNavigationBarLayout(String layoutValue) {
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if (!Objects.equals(mCurrentLayout, layoutValue)) {
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mUsingCustomLayout = layoutValue != null;
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clearViews();
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inflateLayout(layoutValue);
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}
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}
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public void onLikelyDefaultLayoutChange() {
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// Don't override custom layouts
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if (mUsingCustomLayout) return;
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// Reevaluate new layout
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final String newValue = getDefaultLayout();
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if (!Objects.equals(mCurrentLayout, newValue)) {
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clearViews();
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inflateLayout(newValue);
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}
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}
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public void setButtonDispatchers(SparseArray<ButtonDispatcher> buttonDispatchers) {
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mButtonDispatchers = buttonDispatchers;
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for (int i = 0; i < buttonDispatchers.size(); i++) {
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initiallyFill(buttonDispatchers.valueAt(i));
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}
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}
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void updateButtonDispatchersCurrentView() {
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if (mButtonDispatchers != null) {
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View view = mIsVertical ? mVertical : mHorizontal;
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for (int i = 0; i < mButtonDispatchers.size(); i++) {
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final ButtonDispatcher dispatcher = mButtonDispatchers.valueAt(i);
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dispatcher.setCurrentView(view);
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}
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}
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}
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void setVertical(boolean vertical) {
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if (vertical != mIsVertical) {
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mIsVertical = vertical;
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}
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}
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void setAlternativeOrder(boolean alternativeOrder) {
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if (alternativeOrder != mAlternativeOrder) {
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mAlternativeOrder = alternativeOrder;
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updateAlternativeOrder();
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}
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}
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private void updateAlternativeOrder() {
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updateAlternativeOrder(mHorizontal.findViewById(R.id.ends_group));
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updateAlternativeOrder(mHorizontal.findViewById(R.id.center_group));
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updateAlternativeOrder(mVertical.findViewById(R.id.ends_group));
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updateAlternativeOrder(mVertical.findViewById(R.id.center_group));
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}
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private void updateAlternativeOrder(View v) {
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if (v instanceof ReverseLinearLayout) {
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((ReverseLinearLayout) v).setAlternativeOrder(mAlternativeOrder);
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}
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}
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private void initiallyFill(ButtonDispatcher buttonDispatcher) {
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addAll(buttonDispatcher, mHorizontal.findViewById(R.id.ends_group));
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addAll(buttonDispatcher, mHorizontal.findViewById(R.id.center_group));
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addAll(buttonDispatcher, mVertical.findViewById(R.id.ends_group));
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addAll(buttonDispatcher, mVertical.findViewById(R.id.center_group));
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}
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private void addAll(ButtonDispatcher buttonDispatcher, ViewGroup parent) {
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for (int i = 0; i < parent.getChildCount(); i++) {
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// Need to manually search for each id, just in case each group has more than one
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// of a single id. It probably mostly a waste of time, but shouldn't take long
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// and will only happen once.
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if (parent.getChildAt(i).getId() == buttonDispatcher.getId()) {
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buttonDispatcher.addView(parent.getChildAt(i));
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}
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if (parent.getChildAt(i) instanceof ViewGroup) {
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addAll(buttonDispatcher, (ViewGroup) parent.getChildAt(i));
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}
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}
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}
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protected void inflateLayout(String newLayout) {
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mCurrentLayout = newLayout;
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if (newLayout == null) {
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newLayout = getDefaultLayout();
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}
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String[] sets = newLayout.split(GRAVITY_SEPARATOR, 3);
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if (sets.length != 3) {
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Log.d(TAG, "Invalid layout.");
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newLayout = getDefaultLayout();
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sets = newLayout.split(GRAVITY_SEPARATOR, 3);
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}
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String[] start = sets[0].split(BUTTON_SEPARATOR);
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String[] center = sets[1].split(BUTTON_SEPARATOR);
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String[] end = sets[2].split(BUTTON_SEPARATOR);
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// Inflate these in start to end order or accessibility traversal will be messed up.
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inflateButtons(start, mHorizontal.findViewById(R.id.ends_group),
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false /* landscape */, true /* start */);
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inflateButtons(start, mVertical.findViewById(R.id.ends_group),
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true /* landscape */, true /* start */);
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inflateButtons(center, mHorizontal.findViewById(R.id.center_group),
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false /* landscape */, false /* start */);
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inflateButtons(center, mVertical.findViewById(R.id.center_group),
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true /* landscape */, false /* start */);
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addGravitySpacer(mHorizontal.findViewById(R.id.ends_group));
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addGravitySpacer(mVertical.findViewById(R.id.ends_group));
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inflateButtons(end, mHorizontal.findViewById(R.id.ends_group),
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false /* landscape */, false /* start */);
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inflateButtons(end, mVertical.findViewById(R.id.ends_group),
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true /* landscape */, false /* start */);
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updateButtonDispatchersCurrentView();
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}
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private void addGravitySpacer(LinearLayout layout) {
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layout.addView(new Space(mContext), new LinearLayout.LayoutParams(0, 0, 1));
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}
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private void inflateButtons(String[] buttons, ViewGroup parent, boolean landscape,
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boolean start) {
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for (int i = 0; i < buttons.length; i++) {
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inflateButton(buttons[i], parent, landscape, start);
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}
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}
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private ViewGroup.LayoutParams copy(ViewGroup.LayoutParams layoutParams) {
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if (layoutParams instanceof LinearLayout.LayoutParams) {
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return new LinearLayout.LayoutParams(layoutParams.width, layoutParams.height,
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((LinearLayout.LayoutParams) layoutParams).weight);
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}
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return new LayoutParams(layoutParams.width, layoutParams.height);
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}
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@Nullable
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protected View inflateButton(String buttonSpec, ViewGroup parent, boolean landscape,
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boolean start) {
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LayoutInflater inflater = landscape ? mLandscapeInflater : mLayoutInflater;
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View v = createView(buttonSpec, parent, inflater);
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if (v == null) return null;
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v = applySize(v, buttonSpec, landscape, start);
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parent.addView(v);
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addToDispatchers(v);
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View lastView = landscape ? mLastLandscape : mLastPortrait;
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View accessibilityView = v;
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if (v instanceof ReverseRelativeLayout) {
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accessibilityView = ((ReverseRelativeLayout) v).getChildAt(0);
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}
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if (lastView != null) {
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accessibilityView.setAccessibilityTraversalAfter(lastView.getId());
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}
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if (landscape) {
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mLastLandscape = accessibilityView;
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} else {
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mLastPortrait = accessibilityView;
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}
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return v;
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}
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private View applySize(View v, String buttonSpec, boolean landscape, boolean start) {
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String sizeStr = extractSize(buttonSpec);
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if (sizeStr == null) return v;
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if (sizeStr.contains(WEIGHT_SUFFIX) || sizeStr.contains(ABSOLUTE_SUFFIX)) {
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// To support gravity, wrap in RelativeLayout and apply gravity to it.
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// Children wanting to use gravity must be smaller then the frame.
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ReverseRelativeLayout frame = new ReverseRelativeLayout(mContext);
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LayoutParams childParams = new LayoutParams(v.getLayoutParams());
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// Compute gravity to apply
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int gravity = (landscape) ? (start ? Gravity.TOP : Gravity.BOTTOM)
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: (start ? Gravity.START : Gravity.END);
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if (sizeStr.endsWith(WEIGHT_CENTERED_SUFFIX)) {
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gravity = Gravity.CENTER;
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} else if (sizeStr.endsWith(ABSOLUTE_VERTICAL_CENTERED_SUFFIX)) {
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gravity = Gravity.CENTER_VERTICAL;
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}
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// Set default gravity, flipped if needed in reversed layouts (270 RTL and 90 LTR)
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frame.setDefaultGravity(gravity);
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frame.setGravity(gravity); // Apply gravity to root
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frame.addView(v, childParams);
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if (sizeStr.contains(WEIGHT_SUFFIX)) {
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// Use weighting to set the width of the frame
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float weight = Float.parseFloat(
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sizeStr.substring(0, sizeStr.indexOf(WEIGHT_SUFFIX)));
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frame.setLayoutParams(new LinearLayout.LayoutParams(0, MATCH_PARENT, weight));
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} else {
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int width = (int) convertDpToPx(mContext,
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Float.parseFloat(sizeStr.substring(0, sizeStr.indexOf(ABSOLUTE_SUFFIX))));
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frame.setLayoutParams(new LinearLayout.LayoutParams(width, MATCH_PARENT));
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}
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// Ensure ripples can be drawn outside bounds
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frame.setClipChildren(false);
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frame.setClipToPadding(false);
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return frame;
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}
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float size = Float.parseFloat(sizeStr);
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ViewGroup.LayoutParams params = v.getLayoutParams();
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params.width = (int) (params.width * size);
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return v;
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}
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private View createView(String buttonSpec, ViewGroup parent, LayoutInflater inflater) {
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View v = null;
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String button = extractButton(buttonSpec);
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if (LEFT.equals(button)) {
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button = extractButton(NAVSPACE);
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} else if (RIGHT.equals(button)) {
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button = extractButton(MENU_IME_ROTATE);
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}
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if (HOME.equals(button)) {
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v = inflater.inflate(R.layout.home, parent, false);
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} else if (BACK.equals(button)) {
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v = inflater.inflate(R.layout.back, parent, false);
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} else if (RECENT.equals(button)) {
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v = inflater.inflate(R.layout.recent_apps, parent, false);
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} else if (MENU_IME_ROTATE.equals(button)) {
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v = inflater.inflate(R.layout.menu_ime, parent, false);
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} else if (NAVSPACE.equals(button)) {
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v = inflater.inflate(R.layout.nav_key_space, parent, false);
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} else if (CLIPBOARD.equals(button)) {
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v = inflater.inflate(R.layout.clipboard, parent, false);
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} else if (CONTEXTUAL.equals(button)) {
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v = inflater.inflate(R.layout.contextual, parent, false);
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} else if (HOME_HANDLE.equals(button)) {
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v = inflater.inflate(R.layout.home_handle, parent, false);
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} else if (IME_SWITCHER.equals(button)) {
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v = inflater.inflate(R.layout.ime_switcher, parent, false);
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} else if (button.startsWith(KEY)) {
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String uri = extractImage(button);
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int code = extractKeycode(button);
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v = inflater.inflate(R.layout.custom_key, parent, false);
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((KeyButtonView) v).setCode(code);
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if (uri != null) {
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if (uri.contains(":")) {
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((KeyButtonView) v).loadAsync(Icon.createWithContentUri(uri));
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} else if (uri.contains("/")) {
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int index = uri.indexOf('/');
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String pkg = uri.substring(0, index);
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int id = Integer.parseInt(uri.substring(index + 1));
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((KeyButtonView) v).loadAsync(Icon.createWithResource(pkg, id));
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}
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}
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}
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return v;
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}
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public static String extractImage(String buttonSpec) {
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if (!buttonSpec.contains(KEY_IMAGE_DELIM)) {
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return null;
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}
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final int start = buttonSpec.indexOf(KEY_IMAGE_DELIM);
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String subStr = buttonSpec.substring(start + 1, buttonSpec.indexOf(KEY_CODE_END));
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return subStr;
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}
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public static int extractKeycode(String buttonSpec) {
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if (!buttonSpec.contains(KEY_CODE_START)) {
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return 1;
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}
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final int start = buttonSpec.indexOf(KEY_CODE_START);
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String subStr = buttonSpec.substring(start + 1, buttonSpec.indexOf(KEY_IMAGE_DELIM));
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return Integer.parseInt(subStr);
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}
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public static String extractSize(String buttonSpec) {
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if (!buttonSpec.contains(SIZE_MOD_START)) {
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return null;
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}
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final int sizeStart = buttonSpec.indexOf(SIZE_MOD_START);
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return buttonSpec.substring(sizeStart + 1, buttonSpec.indexOf(SIZE_MOD_END));
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}
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public static String extractButton(String buttonSpec) {
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if (!buttonSpec.contains(SIZE_MOD_START)) {
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return buttonSpec;
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}
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return buttonSpec.substring(0, buttonSpec.indexOf(SIZE_MOD_START));
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}
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private void addToDispatchers(View v) {
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if (mButtonDispatchers != null) {
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final int indexOfKey = mButtonDispatchers.indexOfKey(v.getId());
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if (indexOfKey >= 0) {
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mButtonDispatchers.valueAt(indexOfKey).addView(v);
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}
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if (v instanceof ViewGroup) {
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final ViewGroup viewGroup = (ViewGroup)v;
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final int N = viewGroup.getChildCount();
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for (int i = 0; i < N; i++) {
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addToDispatchers(viewGroup.getChildAt(i));
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}
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}
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}
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}
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private void clearViews() {
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if (mButtonDispatchers != null) {
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for (int i = 0; i < mButtonDispatchers.size(); i++) {
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mButtonDispatchers.valueAt(i).clear();
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}
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}
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clearAllChildren(mHorizontal.findViewById(R.id.nav_buttons));
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clearAllChildren(mVertical.findViewById(R.id.nav_buttons));
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}
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private void clearAllChildren(ViewGroup group) {
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for (int i = 0; i < group.getChildCount(); i++) {
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((ViewGroup) group.getChildAt(i)).removeAllViews();
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}
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}
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private static float convertDpToPx(Context context, float dp) {
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return dp * context.getResources().getDisplayMetrics().density;
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}
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}
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