StandaloneActionMode.java revision 85446e95afa480cee2247bb96795fccc8cf812af 
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;
29
30import java.lang.ref.WeakReference;
31
32public class StandaloneActionMode extends ActionMode implements MenuBuilder.Callback {
33    private Context mContext;
34    private ActionBarContextView mContextView;
35    private ActionMode.Callback mCallback;
36    private WeakReference<View> mCustomView;
37    private boolean mFinished;
38
39    private MenuBuilder mMenu;
40
41    public StandaloneActionMode(Context context, ActionBarContextView view,
42            ActionMode.Callback callback) {
43        mContext = context;
44        mContextView = view;
45        mCallback = callback;
46
47        mMenu = new MenuBuilder(context).setDefaultShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
48        mMenu.setCallback(this);
49    }
50
51    @Override
52    public void setTitle(CharSequence title) {
53        mContextView.setTitle(title);
54    }
55
56    @Override
57    public void setSubtitle(CharSequence subtitle) {
58        mContextView.setSubtitle(subtitle);
59    }
60
61    @Override
62    public void setTitle(int resId) {
63        setTitle(mContext.getString(resId));
64    }
65
66    @Override
67    public void setSubtitle(int resId) {
68        setSubtitle(mContext.getString(resId));
69    }
70
71    @Override
72    public void setCustomView(View view) {
73        mContextView.setCustomView(view);
74        mCustomView = view != null ? new WeakReference<View>(view) : null;
75    }
76
77    @Override
78    public void invalidate() {
79        mCallback.onPrepareActionMode(this, mMenu);
80    }
81
82    @Override
83    public void finish() {
84        if (mFinished) {
85            return;
86        }
87        mFinished = true;
88
89        mCallback.onDestroyActionMode(this);
90    }
91
92    @Override
93    public Menu getMenu() {
94        return mMenu;
95    }
96
97    @Override
98    public CharSequence getTitle() {
99        return mContextView.getTitle();
100    }
101
102    @Override
103    public CharSequence getSubtitle() {
104        return mContextView.getSubtitle();
105    }
106
107    @Override
108    public View getCustomView() {
109        return mCustomView != null ? mCustomView.get() : null;
110    }
111
112    @Override
113    public MenuInflater getMenuInflater() {
114        return new MenuInflater(mContext);
115    }
116
117    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
118        return mCallback.onActionItemClicked(this, item);
119    }
120
121    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
122    }
123
124    public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
125        if (!subMenu.hasVisibleItems()) {
126            return true;
127        }
128
129        new MenuPopupHelper(mContext, subMenu).show();
130        return true;
131    }
132
133    public void onCloseSubMenu(SubMenuBuilder menu) {
134    }
135
136    public void onMenuModeChange(MenuBuilder menu) {
137        invalidate();
138        mContextView.showOverflowMenu();
139    }
140}
141