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.view;
17
18import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP;
19
20import android.content.Context;
21import android.support.annotation.RestrictTo;
22import android.support.v7.view.menu.MenuBuilder;
23import android.support.v7.view.menu.MenuPopupHelper;
24import android.support.v7.view.menu.SubMenuBuilder;
25import android.support.v7.widget.ActionBarContextView;
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
34/**
35 * @hide
36 */
37@RestrictTo(LIBRARY_GROUP)
38public class StandaloneActionMode extends ActionMode implements MenuBuilder.Callback {
39    private Context mContext;
40    private ActionBarContextView mContextView;
41    private ActionMode.Callback mCallback;
42    private WeakReference<View> mCustomView;
43    private boolean mFinished;
44    private boolean mFocusable;
45
46    private MenuBuilder mMenu;
47
48    public StandaloneActionMode(Context context, ActionBarContextView view,
49            ActionMode.Callback callback, boolean isFocusable) {
50        mContext = context;
51        mContextView = view;
52        mCallback = callback;
53
54        mMenu = new MenuBuilder(view.getContext()).setDefaultShowAsAction(
55                MenuItem.SHOW_AS_ACTION_IF_ROOM);
56        mMenu.setCallback(this);
57        mFocusable = isFocusable;
58    }
59
60    @Override
61    public void setTitle(CharSequence title) {
62        mContextView.setTitle(title);
63    }
64
65    @Override
66    public void setSubtitle(CharSequence subtitle) {
67        mContextView.setSubtitle(subtitle);
68    }
69
70    @Override
71    public void setTitle(int resId) {
72        setTitle(mContext.getString(resId));
73    }
74
75    @Override
76    public void setSubtitle(int resId) {
77        setSubtitle(mContext.getString(resId));
78    }
79
80    @Override
81    public void setTitleOptionalHint(boolean titleOptional) {
82        super.setTitleOptionalHint(titleOptional);
83        mContextView.setTitleOptional(titleOptional);
84    }
85
86    @Override
87    public boolean isTitleOptional() {
88        return mContextView.isTitleOptional();
89    }
90
91    @Override
92    public void setCustomView(View view) {
93        mContextView.setCustomView(view);
94        mCustomView = view != null ? new WeakReference<View>(view) : null;
95    }
96
97    @Override
98    public void invalidate() {
99        mCallback.onPrepareActionMode(this, mMenu);
100    }
101
102    @Override
103    public void finish() {
104        if (mFinished) {
105            return;
106        }
107        mFinished = true;
108
109        mContextView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
110        mCallback.onDestroyActionMode(this);
111    }
112
113    @Override
114    public Menu getMenu() {
115        return mMenu;
116    }
117
118    @Override
119    public CharSequence getTitle() {
120        return mContextView.getTitle();
121    }
122
123    @Override
124    public CharSequence getSubtitle() {
125        return mContextView.getSubtitle();
126    }
127
128    @Override
129    public View getCustomView() {
130        return mCustomView != null ? mCustomView.get() : null;
131    }
132
133    @Override
134    public MenuInflater getMenuInflater() {
135        return new SupportMenuInflater(mContextView.getContext());
136    }
137
138    @Override
139    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
140        return mCallback.onActionItemClicked(this, item);
141    }
142
143    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
144    }
145
146    public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
147        if (!subMenu.hasVisibleItems()) {
148            return true;
149        }
150
151        new MenuPopupHelper(mContextView.getContext(), subMenu).show();
152        return true;
153    }
154
155    public void onCloseSubMenu(SubMenuBuilder menu) {
156    }
157
158    @Override
159    public void onMenuModeChange(MenuBuilder menu) {
160        invalidate();
161        mContextView.showOverflowMenu();
162    }
163
164    @Override
165    public boolean isUiFocusable() {
166        return mFocusable;
167    }
168}
169