/*
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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");
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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.keyboard;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
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import android.widget.PopupMenu;
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import android.widget.PopupMenu.OnMenuItemClickListener;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
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import com.android.launcher3.popup.PopupContainerWithArrow;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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/**
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* Handles showing a popup menu with available custom actions for a launcher icon.
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* This allows exposing various custom actions using keyboard shortcuts.
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*/
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public class CustomActionsPopup implements OnMenuItemClickListener {
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private final Launcher mLauncher;
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private final LauncherAccessibilityDelegate mDelegate;
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private final View mIcon;
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public CustomActionsPopup(Launcher launcher, View icon) {
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mLauncher = launcher;
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mIcon = icon;
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PopupContainerWithArrow container = PopupContainerWithArrow.getOpen(launcher);
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if (container != null) {
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mDelegate = container.getAccessibilityDelegate();
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} else {
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mDelegate = launcher.getAccessibilityDelegate();
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}
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}
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private List<AccessibilityAction> getActionList() {
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if (mIcon == null || !(mIcon.getTag() instanceof ItemInfo)) {
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return Collections.EMPTY_LIST;
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}
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AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
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mDelegate.addSupportedActions(mIcon, info, true);
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List<AccessibilityAction> result = new ArrayList<>(info.getActionList());
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info.recycle();
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return result;
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}
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public boolean canShow() {
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return !getActionList().isEmpty();
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}
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public boolean show() {
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List<AccessibilityAction> actions = getActionList();
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if (actions.isEmpty()) {
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return false;
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}
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PopupMenu popup = new PopupMenu(mLauncher, mIcon);
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popup.setOnMenuItemClickListener(this);
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Menu menu = popup.getMenu();
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for (AccessibilityAction action : actions) {
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menu.add(Menu.NONE, action.getId(), Menu.NONE, action.getLabel());
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}
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popup.show();
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return true;
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}
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@Override
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public boolean onMenuItemClick(MenuItem menuItem) {
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return mDelegate.performAction(mIcon, (ItemInfo) mIcon.getTag(), menuItem.getItemId());
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}
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}
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