StandaloneActionMode.java revision b98a81f86ab87f1d718f329f03256111fdabd8d1 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package com.android.internal.view;
17
18import com.android.internal.view.menu.MenuBuilder;
19import com.android.internal.view.menu.MenuPopupHelper;
20import com.android.internal.view.menu.SubMenuBuilder;
21import com.android.internal.widget.ActionBarContextView;
22
23import android.content.Context;
24import android.view.ActionMode;
25import android.view.Menu;
26import android.view.MenuInflater;
27import android.view.MenuItem;
28import android.view.View;
29import android.view.accessibility.AccessibilityEvent;
30
31import java.lang.ref.WeakReference;
32
33public class StandaloneActionMode extends ActionMode implements MenuBuilder.Callback {
34    private Context mContext;
35    private ActionBarContextView mContextView;
36    private ActionMode.Callback mCallback;
37    private WeakReference<View> mCustomView;
38    private boolean mFinished;
39    private boolean mFocusable;
40
41    private MenuBuilder mMenu;
42
43    public StandaloneActionMode(Context context, ActionBarContextView view,
44            ActionMode.Callback callback, boolean isFocusable) {
45        mContext = context;
46        mContextView = view;
47        mCallback = callback;
48
49        mMenu = new MenuBuilder(context).setDefaultShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
50        mMenu.setCallback(this);
51        mFocusable = isFocusable;
52    }
53
54    @Override
55    public void setTitle(CharSequence title) {
56        mContextView.setTitle(title);
57    }
58
59    @Override
60    public void setSubtitle(CharSequence subtitle) {
61        mContextView.setSubtitle(subtitle);
62    }
63
64    @Override
65    public void setTitle(int resId) {
66        setTitle(mContext.getString(resId));
67    }
68
69    @Override
70    public void setSubtitle(int resId) {
71        setSubtitle(mContext.getString(resId));
72    }
73
74    @Override
75    public void setTitleOptionalHint(boolean titleOptional) {
76        mContextView.setTitleOptional(titleOptional);
77    }
78
79    @Override
80    public boolean isTitleOptional() {
81        return mContextView.isTitleOptional();
82    }
83
84    @Override
85    public void setCustomView(View view) {
86        mContextView.setCustomView(view);
87        mCustomView = view != null ? new WeakReference<View>(view) : null;
88    }
89
90    @Override
91    public void invalidate() {
92        mCallback.onPrepareActionMode(this, mMenu);
93    }
94
95    @Override
96    public void finish() {
97        if (mFinished) {
98            return;
99        }
100        mFinished = true;
101
102        mContextView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
103        mCallback.onDestroyActionMode(this);
104    }
105
106    @Override
107    public Menu getMenu() {
108        return mMenu;
109    }
110
111    @Override
112    public CharSequence getTitle() {
113        return mContextView.getTitle();
114    }
115
116    @Override
117    public CharSequence getSubtitle() {
118        return mContextView.getSubtitle();
119    }
120
121    @Override
122    public View getCustomView() {
123        return mCustomView != null ? mCustomView.get() : null;
124    }
125
126    @Override
127    public MenuInflater getMenuInflater() {
128        return new MenuInflater(mContext);
129    }
130
131    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
132        return mCallback.onActionItemClicked(this, item);
133    }
134
135    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
136    }
137
138    public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
139        if (!subMenu.hasVisibleItems()) {
140            return true;
141        }
142
143        new MenuPopupHelper(mContext, subMenu).show();
144        return true;
145    }
146
147    public void onCloseSubMenu(SubMenuBuilder menu) {
148    }
149
150    public void onMenuModeChange(MenuBuilder menu) {
151        invalidate();
152        mContextView.showOverflowMenu();
153    }
154
155    public boolean isUiFocusable() {
156        return mFocusable;
157    }
158}
159