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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3.keyboard;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.Launcher;
import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
import com.android.launcher3.popup.PopupContainerWithArrow;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Handles showing a popup menu with available custom actions for a launcher icon.
* This allows exposing various custom actions using keyboard shortcuts.
*/
public class CustomActionsPopup implements OnMenuItemClickListener {
private final Launcher mLauncher;
private final LauncherAccessibilityDelegate mDelegate;
private final View mIcon;
public CustomActionsPopup(Launcher launcher, View icon) {
mLauncher = launcher;
mIcon = icon;
PopupContainerWithArrow container = PopupContainerWithArrow.getOpen(launcher);
if (container != null) {
mDelegate = container.getAccessibilityDelegate();
} else {
mDelegate = launcher.getAccessibilityDelegate();
}
}
private List<AccessibilityAction> getActionList() {
if (mIcon == null || !(mIcon.getTag() instanceof ItemInfo)) {
return Collections.EMPTY_LIST;
}
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
mDelegate.addSupportedActions(mIcon, info, true);
List<AccessibilityAction> result = new ArrayList<>(info.getActionList());
info.recycle();
return result;
}
public boolean canShow() {
return !getActionList().isEmpty();
}
public boolean show() {
List<AccessibilityAction> actions = getActionList();
if (actions.isEmpty()) {
return false;
}
PopupMenu popup = new PopupMenu(mLauncher, mIcon);
popup.setOnMenuItemClickListener(this);
Menu menu = popup.getMenu();
for (AccessibilityAction action : actions) {
menu.add(Menu.NONE, action.getId(), Menu.NONE, action.getLabel());
}
popup.show();
return true;
}
@Override
public boolean onMenuItemClick(MenuItem menuItem) {
return mDelegate.performAction(mIcon, (ItemInfo) mIcon.getTag(), menuItem.getItemId());
}
}
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