StandaloneActionMode.java revision 4c2a95906254748cb9a843b061288265d6e185a9 
1/*
2 * Copyright (C) 2014 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 android.support.v7.internal.view;
17
18import android.annotation.TargetApi;
19import android.content.Context;
20import android.os.Build;
21import android.support.v7.internal.view.menu.MenuBuilder;
22import android.support.v7.internal.view.menu.MenuPopupHelper;
23import android.support.v7.internal.view.menu.SubMenuBuilder;
24import android.support.v7.internal.widget.ActionBarContextView;
25import android.support.v7.view.ActionMode;
26import android.view.Menu;
27import android.view.MenuInflater;
28import android.view.MenuItem;
29import android.view.View;
30import android.view.accessibility.AccessibilityEvent;
31
32import java.lang.ref.WeakReference;
33
34public class StandaloneActionMode extends ActionMode implements MenuBuilder.Callback {
35    private Context mContext;
36    private ActionBarContextView mContextView;
37    private ActionMode.Callback mCallback;
38    private WeakReference<View> mCustomView;
39    private boolean mFinished;
40    private boolean mFocusable;
41
42    private MenuBuilder mMenu;
43
44    public StandaloneActionMode(Context context, ActionBarContextView view,
45            ActionMode.Callback callback, boolean isFocusable) {
46        mContext = context;
47        mContextView = view;
48        mCallback = callback;
49
50        mMenu = new MenuBuilder(context).setDefaultShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
51        mMenu.setCallback(this);
52        mFocusable = isFocusable;
53    }
54
55    @Override
56    public void setTitle(CharSequence title) {
57        mContextView.setTitle(title);
58    }
59
60    @Override
61    public void setSubtitle(CharSequence subtitle) {
62        mContextView.setSubtitle(subtitle);
63    }
64
65    @Override
66    public void setTitle(int resId) {
67        setTitle(mContext.getString(resId));
68    }
69
70    @Override
71    public void setSubtitle(int resId) {
72        setSubtitle(mContext.getString(resId));
73    }
74
75    @Override
76    public void setTitleOptionalHint(boolean titleOptional) {
77        super.setTitleOptionalHint(titleOptional);
78        mContextView.setTitleOptional(titleOptional);
79    }
80
81    @Override
82    public boolean isTitleOptional() {
83        return mContextView.isTitleOptional();
84    }
85
86    @Override
87    public void setCustomView(View view) {
88        mContextView.setCustomView(view);
89        mCustomView = view != null ? new WeakReference<View>(view) : null;
90    }
91
92    @Override
93    public void invalidate() {
94        mCallback.onPrepareActionMode(this, mMenu);
95    }
96
97    @Override
98    public void finish() {
99        if (mFinished) {
100            return;
101        }
102        mFinished = true;
103
104        mContextView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
105        mCallback.onDestroyActionMode(this);
106    }
107
108    @Override
109    public Menu getMenu() {
110        return mMenu;
111    }
112
113    @Override
114    public CharSequence getTitle() {
115        return mContextView.getTitle();
116    }
117
118    @Override
119    public CharSequence getSubtitle() {
120        return mContextView.getSubtitle();
121    }
122
123    @Override
124    public View getCustomView() {
125        return mCustomView != null ? mCustomView.get() : null;
126    }
127
128    @Override
129    public MenuInflater getMenuInflater() {
130        return new MenuInflater(mContext);
131    }
132
133    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
134        return mCallback.onActionItemClicked(this, item);
135    }
136
137    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
138    }
139
140    public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
141        if (!subMenu.hasVisibleItems()) {
142            return true;
143        }
144
145        new MenuPopupHelper(mContext, subMenu).show();
146        return true;
147    }
148
149    public void onCloseSubMenu(SubMenuBuilder menu) {
150    }
151
152    public void onMenuModeChange(MenuBuilder menu) {
153        invalidate();
154        mContextView.showOverflowMenu();
155    }
156
157    public boolean isUiFocusable() {
158        return mFocusable;
159    }
160}