ActionMenuItemView.java revision 9f125d341521efc8535e32e35a641be50d405c36 
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    }
60
61    public MenuItemImpl getItemData() {
62        return mItemData;
63    }
64
65    public void initialize(MenuItemImpl itemData, int menuType) {
66        mItemData = itemData;
67
68        setIcon(itemData.getIcon());
69        setTitle(itemData.getTitleForItemView(this)); // Title only takes effect if there is no icon
70        setId(itemData.getItemId());
71
72        setVisibility(itemData.isVisible() ? View.VISIBLE : View.GONE);
73        setEnabled(itemData.isEnabled());
74    }
75
76    @Override
77    public void setEnabled(boolean enabled) {
78        super.setEnabled(enabled);
79        mImageButton.setEnabled(enabled);
80        mTextButton.setEnabled(enabled);
81    }
82
83    public void onClick(View v) {
84        if (mItemInvoker != null) {
85            mItemInvoker.invokeItem(mItemData);
86        }
87    }
88
89    public void setItemInvoker(MenuBuilder.ItemInvoker invoker) {
90        mItemInvoker = invoker;
91    }
92
93    public boolean prefersCondensedTitle() {
94        return true;
95    }
96
97    public void setCheckable(boolean checkable) {
98        // TODO Support checkable action items
99    }
100
101    public void setChecked(boolean checked) {
102        // TODO Support checkable action items
103    }
104
105    public void setIcon(Drawable icon) {
106        mImageButton.setImageDrawable(icon);
107        if (icon != null) {
108            mImageButton.setVisibility(VISIBLE);
109        } else {
110            mImageButton.setVisibility(GONE);
111        }
112
113        mTextButton.setVisibility(icon == null || mItemData.showsTextAsAction() ? VISIBLE : GONE);
114    }
115
116    public boolean hasText() {
117        return mTextButton.getVisibility() != GONE;
118    }
119
120    public void setShortcut(boolean showShortcut, char shortcutKey) {
121        // Action buttons don't show text for shortcut keys.
122    }
123
124    public void setTitle(CharSequence title) {
125        mTitle = title;
126
127        // populate accessibility description with title
128        setContentDescription(title);
129
130        if (mImageButton.getDrawable() == null || mItemData.showsTextAsAction()) {
131            mTextButton.setText(mTitle);
132            mTextButton.setVisibility(VISIBLE);
133        }
134    }
135
136    public boolean showsIcon() {
137        return true;
138    }
139}
140