The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 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 | |
| 17 | package com.android.internal.view.menu; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.TypedArray; |
| 21 | import android.graphics.drawable.Drawable; |
| 22 | import android.util.AttributeSet; |
| 23 | import android.view.LayoutInflater; |
| 24 | import android.view.View; |
| 25 | import android.widget.CheckBox; |
| 26 | import android.widget.CompoundButton; |
| 27 | import android.widget.ImageView; |
| 28 | import android.widget.LinearLayout; |
| 29 | import android.widget.RadioButton; |
| 30 | import android.widget.TextView; |
| 31 | |
| 32 | /** |
| 33 | * The item view for each item in the ListView-based MenuViews. |
| 34 | */ |
| 35 | public class ListMenuItemView extends LinearLayout implements MenuView.ItemView { |
| 36 | private MenuItemImpl mItemData; |
| 37 | |
| 38 | private ImageView mIconView; |
| 39 | private RadioButton mRadioButton; |
| 40 | private TextView mTitleView; |
| 41 | private CheckBox mCheckBox; |
| 42 | private TextView mShortcutView; |
| 43 | |
| 44 | private Drawable mBackground; |
| 45 | private int mTextAppearance; |
| 46 | private Context mTextAppearanceContext; |
Adam Powell | e7d4684 | 2011-01-13 21:36:09 -0800 | [diff] [blame] | 47 | private boolean mPreserveIconSpacing; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 48 | |
| 49 | private int mMenuType; |
| 50 | |
| 51 | public ListMenuItemView(Context context, AttributeSet attrs, int defStyle) { |
| 52 | super(context, attrs); |
| 53 | |
| 54 | TypedArray a = |
| 55 | context.obtainStyledAttributes( |
| 56 | attrs, com.android.internal.R.styleable.MenuView, defStyle, 0); |
| 57 | |
| 58 | mBackground = a.getDrawable(com.android.internal.R.styleable.MenuView_itemBackground); |
| 59 | mTextAppearance = a.getResourceId(com.android.internal.R.styleable. |
| 60 | MenuView_itemTextAppearance, -1); |
Adam Powell | e7d4684 | 2011-01-13 21:36:09 -0800 | [diff] [blame] | 61 | mPreserveIconSpacing = a.getBoolean( |
| 62 | com.android.internal.R.styleable.MenuView_preserveIconSpacing, false); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 63 | mTextAppearanceContext = context; |
| 64 | |
| 65 | a.recycle(); |
| 66 | } |
| 67 | |
| 68 | public ListMenuItemView(Context context, AttributeSet attrs) { |
| 69 | this(context, attrs, 0); |
| 70 | } |
| 71 | |
| 72 | @Override |
| 73 | protected void onFinishInflate() { |
| 74 | super.onFinishInflate(); |
| 75 | |
| 76 | setBackgroundDrawable(mBackground); |
| 77 | |
| 78 | mTitleView = (TextView) findViewById(com.android.internal.R.id.title); |
| 79 | if (mTextAppearance != -1) { |
| 80 | mTitleView.setTextAppearance(mTextAppearanceContext, |
| 81 | mTextAppearance); |
| 82 | } |
| 83 | |
| 84 | mShortcutView = (TextView) findViewById(com.android.internal.R.id.shortcut); |
| 85 | } |
| 86 | |
| 87 | public void initialize(MenuItemImpl itemData, int menuType) { |
| 88 | mItemData = itemData; |
| 89 | mMenuType = menuType; |
| 90 | |
| 91 | setVisibility(itemData.isVisible() ? View.VISIBLE : View.GONE); |
| 92 | |
| 93 | setTitle(itemData.getTitleForItemView(this)); |
| 94 | setCheckable(itemData.isCheckable()); |
| 95 | setShortcut(itemData.shouldShowShortcut(), itemData.getShortcut()); |
| 96 | setIcon(itemData.getIcon()); |
| 97 | setEnabled(itemData.isEnabled()); |
| 98 | } |
| 99 | |
| 100 | public void setTitle(CharSequence title) { |
| 101 | if (title != null) { |
| 102 | mTitleView.setText(title); |
| 103 | |
| 104 | if (mTitleView.getVisibility() != VISIBLE) mTitleView.setVisibility(VISIBLE); |
| 105 | } else { |
| 106 | if (mTitleView.getVisibility() != GONE) mTitleView.setVisibility(GONE); |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | public MenuItemImpl getItemData() { |
| 111 | return mItemData; |
| 112 | } |
| 113 | |
| 114 | public void setCheckable(boolean checkable) { |
| 115 | |
| 116 | if (!checkable && mRadioButton == null && mCheckBox == null) { |
| 117 | return; |
| 118 | } |
| 119 | |
| 120 | if (mRadioButton == null) { |
| 121 | insertRadioButton(); |
| 122 | } |
| 123 | if (mCheckBox == null) { |
| 124 | insertCheckBox(); |
| 125 | } |
| 126 | |
| 127 | // Depending on whether its exclusive check or not, the checkbox or |
| 128 | // radio button will be the one in use (and the other will be otherCompoundButton) |
| 129 | final CompoundButton compoundButton; |
| 130 | final CompoundButton otherCompoundButton; |
| 131 | |
| 132 | if (mItemData.isExclusiveCheckable()) { |
| 133 | compoundButton = mRadioButton; |
| 134 | otherCompoundButton = mCheckBox; |
| 135 | } else { |
| 136 | compoundButton = mCheckBox; |
| 137 | otherCompoundButton = mRadioButton; |
| 138 | } |
| 139 | |
| 140 | if (checkable) { |
| 141 | compoundButton.setChecked(mItemData.isChecked()); |
| 142 | |
| 143 | final int newVisibility = checkable ? VISIBLE : GONE; |
| 144 | if (compoundButton.getVisibility() != newVisibility) { |
| 145 | compoundButton.setVisibility(newVisibility); |
| 146 | } |
| 147 | |
| 148 | // Make sure the other compound button isn't visible |
| 149 | if (otherCompoundButton.getVisibility() != GONE) { |
| 150 | otherCompoundButton.setVisibility(GONE); |
| 151 | } |
| 152 | } else { |
| 153 | mCheckBox.setVisibility(GONE); |
| 154 | mRadioButton.setVisibility(GONE); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | public void setChecked(boolean checked) { |
| 159 | CompoundButton compoundButton; |
| 160 | |
| 161 | if (mItemData.isExclusiveCheckable()) { |
| 162 | if (mRadioButton == null) { |
| 163 | insertRadioButton(); |
| 164 | } |
| 165 | compoundButton = mRadioButton; |
| 166 | } else { |
| 167 | if (mCheckBox == null) { |
| 168 | insertCheckBox(); |
| 169 | } |
| 170 | compoundButton = mCheckBox; |
| 171 | } |
| 172 | |
| 173 | compoundButton.setChecked(checked); |
| 174 | } |
| 175 | |
| 176 | public void setShortcut(boolean showShortcut, char shortcutKey) { |
| 177 | final int newVisibility = (showShortcut && mItemData.shouldShowShortcut()) |
| 178 | ? VISIBLE : GONE; |
| 179 | |
| 180 | if (newVisibility == VISIBLE) { |
| 181 | mShortcutView.setText(mItemData.getShortcutLabel()); |
| 182 | } |
| 183 | |
| 184 | if (mShortcutView.getVisibility() != newVisibility) { |
| 185 | mShortcutView.setVisibility(newVisibility); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | public void setIcon(Drawable icon) { |
Adam Powell | e7d4684 | 2011-01-13 21:36:09 -0800 | [diff] [blame] | 190 | final boolean showIcon = mItemData.shouldShowIcon(mMenuType); |
| 191 | if (!showIcon && !mPreserveIconSpacing) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 192 | return; |
| 193 | } |
| 194 | |
| 195 | if (mIconView == null && icon == null) { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | if (mIconView == null) { |
| 200 | insertIconView(); |
| 201 | } |
| 202 | |
Adam Powell | e7d4684 | 2011-01-13 21:36:09 -0800 | [diff] [blame] | 203 | if (icon != null || mPreserveIconSpacing) { |
| 204 | mIconView.setImageDrawable(showIcon ? icon : null); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 205 | |
| 206 | if (mIconView.getVisibility() != VISIBLE) { |
| 207 | mIconView.setVisibility(VISIBLE); |
| 208 | } |
| 209 | } else { |
| 210 | mIconView.setVisibility(GONE); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | private void insertIconView() { |
| 215 | LayoutInflater inflater = mItemData.getLayoutInflater(mMenuType); |
| 216 | mIconView = (ImageView) inflater.inflate(com.android.internal.R.layout.list_menu_item_icon, |
| 217 | this, false); |
| 218 | addView(mIconView, 0); |
| 219 | } |
| 220 | |
| 221 | private void insertRadioButton() { |
| 222 | LayoutInflater inflater = mItemData.getLayoutInflater(mMenuType); |
| 223 | mRadioButton = |
| 224 | (RadioButton) inflater.inflate(com.android.internal.R.layout.list_menu_item_radio, |
| 225 | this, false); |
| 226 | addView(mRadioButton); |
| 227 | } |
| 228 | |
| 229 | private void insertCheckBox() { |
| 230 | LayoutInflater inflater = mItemData.getLayoutInflater(mMenuType); |
| 231 | mCheckBox = |
| 232 | (CheckBox) inflater.inflate(com.android.internal.R.layout.list_menu_item_checkbox, |
| 233 | this, false); |
| 234 | addView(mCheckBox); |
| 235 | } |
| 236 | |
| 237 | public boolean prefersCondensedTitle() { |
| 238 | return false; |
| 239 | } |
| 240 | |
| 241 | public boolean showsIcon() { |
| 242 | return false; |
| 243 | } |
| 244 | |
| 245 | } |