ActionMenuItemView.java revision 6bddd8771d05889024778caa78fb1eaae68a0802 
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 */
16
17package com.android.internal.view.menu;
18
19import android.content.Context;
20import android.graphics.drawable.Drawable;
21import android.util.AttributeSet;
22import android.view.View;
23import android.widget.Button;
24import android.widget.ImageButton;
25import android.widget.LinearLayout;
26
27/**
28 * @hide
29 */
30public class ActionMenuItemView extends LinearLayout
31        implements MenuView.ItemView, View.OnClickListener {
32    private static final String TAG = "ActionMenuItemView";
33
34    private MenuItemImpl mItemData;
35    private CharSequence mTitle;
36    private MenuBuilder.ItemInvoker mItemInvoker;
37
38    private ImageButton mImageButton;
39    private Button mTextButton;
40
41    public ActionMenuItemView(Context context) {
42        this(context, null);
43    }
44
45    public ActionMenuItemView(Context context, AttributeSet attrs) {
46        super(context, attrs);
47    }
48
49    public ActionMenuItemView(Context context, AttributeSet attrs, int defStyle) {
50        super(context, attrs, defStyle);
51    }
52
53    @Override
54    public void onFinishInflate() {
55        mImageButton = (ImageButton) findViewById(com.android.internal.R.id.imageButton);
56        mTextButton = (Button) findViewById(com.android.internal.R.id.textButton);
57        mImageButton.setOnClickListener(this);
58        mTextButton.setOnClickListener(this);
59        setOnClickListener(this);
60    }
61
62    public MenuItemImpl getItemData() {
63        return mItemData;
64    }
65
66    public void initialize(MenuItemImpl itemData, int menuType) {
67        mItemData = itemData;
68
69        setIcon(itemData.getIcon());
70        setTitle(itemData.getTitleForItemView(this)); // Title only takes effect if there is no icon
71        setId(itemData.getItemId());
72
73        setVisibility(itemData.isVisible() ? View.VISIBLE : View.GONE);
74        setEnabled(itemData.isEnabled());
75    }
76
77    @Override
78    public void setEnabled(boolean enabled) {
79        super.setEnabled(enabled);
80        mImageButton.setEnabled(enabled);
81        mTextButton.setEnabled(enabled);
82    }
83
84    public void onClick(View v) {
85        if (mItemInvoker != null) {
86            mItemInvoker.invokeItem(mItemData);
87        }
88    }
89
90    public void setItemInvoker(MenuBuilder.ItemInvoker invoker) {
91        mItemInvoker = invoker;
92    }
93
94    public boolean prefersCondensedTitle() {
95        return true;
96    }
97
98    public void setCheckable(boolean checkable) {
99        // TODO Support checkable action items
100    }
101
102    public void setChecked(boolean checked) {
103        // TODO Support checkable action items
104    }
105
106    public void setIcon(Drawable icon) {
107        mImageButton.setImageDrawable(icon);
108        if (icon != null) {
109            mImageButton.setVisibility(VISIBLE);
110        } else {
111            mImageButton.setVisibility(GONE);
112        }
113
114        mTextButton.setVisibility(icon == null || mItemData.showsTextAsAction() ? VISIBLE : GONE);
115    }
116
117    public boolean hasText() {
118        return mTextButton.getVisibility() != GONE;
119    }
120
121    public void setShortcut(boolean showShortcut, char shortcutKey) {
122        // Action buttons don't show text for shortcut keys.
123    }
124
125    public void setTitle(CharSequence title) {
126        mTitle = title;
127
128        // populate accessibility description with title
129        setContentDescription(title);
130
131        if (mImageButton.getDrawable() == null || mItemData.showsTextAsAction()) {
132            mTextButton.setText(mTitle);
133            mTextButton.setVisibility(VISIBLE);
134        }
135    }
136
137    public boolean showsIcon() {
138        return true;
139    }
140}
141