1/*
2 * Copyright (C) 2006 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 */
16
17package android.support.v7.view.menu;
18
19import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP;
20
21import android.content.Context;
22import android.graphics.drawable.Drawable;
23import android.support.annotation.RestrictTo;
24import android.view.Menu;
25import android.view.MenuItem;
26import android.view.SubMenu;
27import android.view.View;
28
29/**
30 * The model for a sub menu, which is an extension of the menu.  Most methods are proxied to the
31 * parent menu.
32 *
33 * @hide
34 */
35@RestrictTo(LIBRARY_GROUP)
36public class SubMenuBuilder extends MenuBuilder implements SubMenu {
37    private MenuBuilder mParentMenu;
38    private MenuItemImpl mItem;
39
40    public SubMenuBuilder(Context context, MenuBuilder parentMenu, MenuItemImpl item) {
41        super(context);
42
43        mParentMenu = parentMenu;
44        mItem = item;
45    }
46
47    @Override
48    public void setQwertyMode(boolean isQwerty) {
49        mParentMenu.setQwertyMode(isQwerty);
50    }
51
52    @Override
53    public boolean isQwertyMode() {
54        return mParentMenu.isQwertyMode();
55    }
56
57    @Override
58    public void setShortcutsVisible(boolean shortcutsVisible) {
59        mParentMenu.setShortcutsVisible(shortcutsVisible);
60    }
61
62    @Override
63    public boolean isShortcutsVisible() {
64        return mParentMenu.isShortcutsVisible();
65    }
66
67    public Menu getParentMenu() {
68        return mParentMenu;
69    }
70
71    @Override
72    public MenuItem getItem() {
73        return mItem;
74    }
75
76    @Override
77    public void setCallback(Callback callback) {
78        mParentMenu.setCallback(callback);
79    }
80
81    @Override
82    public MenuBuilder getRootMenu() {
83        return mParentMenu.getRootMenu();
84    }
85
86    @Override
87    boolean dispatchMenuItemSelected(MenuBuilder menu, MenuItem item) {
88        return super.dispatchMenuItemSelected(menu, item) ||
89                mParentMenu.dispatchMenuItemSelected(menu, item);
90    }
91
92    @Override
93    public SubMenu setIcon(Drawable icon) {
94        mItem.setIcon(icon);
95        return this;
96    }
97
98    @Override
99    public SubMenu setIcon(int iconRes) {
100        mItem.setIcon(iconRes);
101        return this;
102    }
103
104    @Override
105    public SubMenu setHeaderIcon(Drawable icon) {
106        return (SubMenu) super.setHeaderIconInt(icon);
107    }
108
109    @Override
110    public SubMenu setHeaderIcon(int iconRes) {
111        return (SubMenu) super.setHeaderIconInt(iconRes);
112    }
113
114    @Override
115    public SubMenu setHeaderTitle(CharSequence title) {
116        return (SubMenu) super.setHeaderTitleInt(title);
117    }
118
119    @Override
120    public SubMenu setHeaderTitle(int titleRes) {
121        return (SubMenu) super.setHeaderTitleInt(titleRes);
122    }
123
124    @Override
125    public SubMenu setHeaderView(View view) {
126        return (SubMenu) super.setHeaderViewInt(view);
127    }
128
129    @Override
130    public boolean expandItemActionView(MenuItemImpl item) {
131        return mParentMenu.expandItemActionView(item);
132    }
133
134    @Override
135    public boolean collapseItemActionView(MenuItemImpl item) {
136        return mParentMenu.collapseItemActionView(item);
137    }
138
139    @Override
140    public String getActionViewStatesKey() {
141        final int itemId = mItem != null ? mItem.getItemId() : 0;
142        if (itemId == 0) {
143            return null;
144        }
145        return super.getActionViewStatesKey() + ":" + itemId;
146    }
147}
148