Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 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 | */ |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 16 | package android.widget; |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 17 | |
Siva Velusamy | 94a6d15 | 2015-05-05 15:07:00 -0700 | [diff] [blame] | 18 | import android.annotation.NonNull; |
Chris Banes | a41b789 | 2015-06-09 13:36:44 +0000 | [diff] [blame] | 19 | import android.annotation.Nullable; |
Tor Norbye | 417ee5b | 2015-03-10 20:57:37 -0700 | [diff] [blame] | 20 | import android.annotation.StyleRes; |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 21 | import android.content.Context; |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 22 | import android.content.res.Configuration; |
Chris Banes | a41b789 | 2015-06-09 13:36:44 +0000 | [diff] [blame] | 23 | import android.graphics.drawable.Drawable; |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 24 | import android.util.AttributeSet; |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 25 | import android.view.ContextThemeWrapper; |
Adam Powell | 6b336f8 | 2010-08-10 20:13:01 -0700 | [diff] [blame] | 26 | import android.view.Gravity; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 27 | import android.view.Menu; |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 28 | import android.view.MenuItem; |
Adam Powell | cf78b3e | 2010-09-12 18:25:23 -0700 | [diff] [blame] | 29 | import android.view.View; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 30 | import android.view.ViewDebug; |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 31 | import android.view.ViewGroup; |
Siva Velusamy | 94a6d15 | 2015-05-05 15:07:00 -0700 | [diff] [blame] | 32 | import android.view.ViewHierarchyEncoder; |
Adam Powell | 7bc3ca0 | 2011-08-26 18:29:58 -0700 | [diff] [blame] | 33 | import android.view.accessibility.AccessibilityEvent; |
Aurimas Liutikas | 99441c5 | 2016-10-11 16:48:32 -0700 | [diff] [blame] | 34 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 35 | import com.android.internal.view.menu.ActionMenuItemView; |
| 36 | import com.android.internal.view.menu.MenuBuilder; |
| 37 | import com.android.internal.view.menu.MenuItemImpl; |
Adam Powell | 04c0d46 | 2014-09-04 16:10:24 -0700 | [diff] [blame] | 38 | import com.android.internal.view.menu.MenuPresenter; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 39 | import com.android.internal.view.menu.MenuView; |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 40 | |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 41 | /** |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 42 | * ActionMenuView is a presentation of a series of menu options as a View. It provides |
| 43 | * several top level options as action buttons while spilling remaining options over as |
| 44 | * items in an overflow menu. This allows applications to present packs of actions inline with |
| 45 | * specific or repeating content. |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 46 | */ |
| 47 | public class ActionMenuView extends LinearLayout implements MenuBuilder.ItemInvoker, MenuView { |
| 48 | private static final String TAG = "ActionMenuView"; |
Aurimas Liutikas | 99441c5 | 2016-10-11 16:48:32 -0700 | [diff] [blame] | 49 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 50 | static final int MIN_CELL_SIZE = 56; // dips |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 51 | static final int GENERATED_ITEM_PADDING = 4; // dips |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 52 | |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 53 | private MenuBuilder mMenu; |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 54 | |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 55 | /** Context against which to inflate popup menus. */ |
| 56 | private Context mPopupContext; |
| 57 | |
| 58 | /** Theme resource against which to inflate popup menus. */ |
| 59 | private int mPopupTheme; |
| 60 | |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 61 | private boolean mReserveOverflow; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 62 | private ActionMenuPresenter mPresenter; |
Adam Powell | 04c0d46 | 2014-09-04 16:10:24 -0700 | [diff] [blame] | 63 | private MenuPresenter.Callback mActionMenuPresenterCallback; |
Adam Powell | c461250 | 2014-09-04 19:16:39 -0700 | [diff] [blame] | 64 | private MenuBuilder.Callback mMenuBuilderCallback; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 65 | private boolean mFormatItems; |
Adam Powell | 89b09da | 2011-07-27 11:55:29 -0700 | [diff] [blame] | 66 | private int mFormatItemsWidth; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 67 | private int mMinCellSize; |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 68 | private int mGeneratedItemPadding; |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 69 | |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 70 | private OnMenuItemClickListener mOnMenuItemClickListener; |
| 71 | |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 72 | public ActionMenuView(Context context) { |
| 73 | this(context, null); |
| 74 | } |
Aurimas Liutikas | 99441c5 | 2016-10-11 16:48:32 -0700 | [diff] [blame] | 75 | |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 76 | public ActionMenuView(Context context, AttributeSet attrs) { |
| 77 | super(context, attrs); |
Adam Powell | f16888f | 2010-10-11 17:05:29 -0700 | [diff] [blame] | 78 | setBaselineAligned(false); |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 79 | final float density = context.getResources().getDisplayMetrics().density; |
| 80 | mMinCellSize = (int) (MIN_CELL_SIZE * density); |
| 81 | mGeneratedItemPadding = (int) (GENERATED_ITEM_PADDING * density); |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 82 | mPopupContext = context; |
| 83 | mPopupTheme = 0; |
Adam Powell | 773b1b9 | 2010-08-20 15:45:24 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 86 | /** |
| 87 | * Specifies the theme to use when inflating popup menus. By default, uses |
| 88 | * the same theme as the action menu view itself. |
| 89 | * |
| 90 | * @param resId theme used to inflate popup menus |
| 91 | * @see #getPopupTheme() |
| 92 | */ |
Tor Norbye | 417ee5b | 2015-03-10 20:57:37 -0700 | [diff] [blame] | 93 | public void setPopupTheme(@StyleRes int resId) { |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 94 | if (mPopupTheme != resId) { |
| 95 | mPopupTheme = resId; |
| 96 | if (resId == 0) { |
| 97 | mPopupContext = mContext; |
| 98 | } else { |
| 99 | mPopupContext = new ContextThemeWrapper(mContext, resId); |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * @return resource identifier of the theme used to inflate popup menus, or |
| 106 | * 0 if menus are inflated against the action menu view theme |
| 107 | * @see #setPopupTheme(int) |
| 108 | */ |
| 109 | public int getPopupTheme() { |
| 110 | return mPopupTheme; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * @param presenter Menu presenter used to display popup menu |
| 115 | * @hide |
| 116 | */ |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 117 | public void setPresenter(ActionMenuPresenter presenter) { |
| 118 | mPresenter = presenter; |
Adam Powell | e021e6e | 2014-05-23 17:27:24 -0700 | [diff] [blame] | 119 | mPresenter.setMenuView(this); |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 120 | } |
| 121 | |
Adam Powell | 6c6f575 | 2010-08-20 18:34:46 -0700 | [diff] [blame] | 122 | @Override |
Adam Powell | 773b1b9 | 2010-08-20 15:45:24 -0700 | [diff] [blame] | 123 | public void onConfigurationChanged(Configuration newConfig) { |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 124 | super.onConfigurationChanged(newConfig); |
Adam Powell | 6c6f575 | 2010-08-20 18:34:46 -0700 | [diff] [blame] | 125 | |
Chris Banes | 5cd1326 | 2015-01-19 12:01:46 +0000 | [diff] [blame] | 126 | if (mPresenter != null) { |
| 127 | mPresenter.updateMenuView(false); |
| 128 | |
| 129 | if (mPresenter.isOverflowMenuShowing()) { |
| 130 | mPresenter.hideOverflowMenu(); |
| 131 | mPresenter.showOverflowMenu(); |
| 132 | } |
Adam Powell | 6c6f575 | 2010-08-20 18:34:46 -0700 | [diff] [blame] | 133 | } |
Adam Powell | 773b1b9 | 2010-08-20 15:45:24 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 136 | public void setOnMenuItemClickListener(OnMenuItemClickListener listener) { |
| 137 | mOnMenuItemClickListener = listener; |
| 138 | } |
| 139 | |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 140 | @Override |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 141 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 142 | // If we've been given an exact size to match, apply special formatting during layout. |
Adam Powell | 89b09da | 2011-07-27 11:55:29 -0700 | [diff] [blame] | 143 | final boolean wasFormatted = mFormatItems; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 144 | mFormatItems = MeasureSpec.getMode(widthMeasureSpec) == MeasureSpec.EXACTLY; |
Adam Powell | 89b09da | 2011-07-27 11:55:29 -0700 | [diff] [blame] | 145 | |
| 146 | if (wasFormatted != mFormatItems) { |
| 147 | mFormatItemsWidth = 0; // Reset this when switching modes |
| 148 | } |
| 149 | |
| 150 | // Special formatting can change whether items can fit as action buttons. |
| 151 | // Kick the menu and update presenters when this changes. |
Adam Powell | da97108 | 2013-10-03 18:21:58 -0700 | [diff] [blame] | 152 | final int widthSize = MeasureSpec.getSize(widthMeasureSpec); |
Adam Powell | 89b09da | 2011-07-27 11:55:29 -0700 | [diff] [blame] | 153 | if (mFormatItems && mMenu != null && widthSize != mFormatItemsWidth) { |
| 154 | mFormatItemsWidth = widthSize; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 155 | mMenu.onItemsChanged(true); |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 156 | } |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 157 | |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 158 | final int childCount = getChildCount(); |
| 159 | if (mFormatItems && childCount > 0) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 160 | onMeasureExactFormat(widthMeasureSpec, heightMeasureSpec); |
| 161 | } else { |
Adam Powell | 75d022a | 2012-03-06 12:04:07 -0800 | [diff] [blame] | 162 | // Previous measurement at exact format may have set margins - reset them. |
Adam Powell | 75d022a | 2012-03-06 12:04:07 -0800 | [diff] [blame] | 163 | for (int i = 0; i < childCount; i++) { |
| 164 | final View child = getChildAt(i); |
| 165 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| 166 | lp.leftMargin = lp.rightMargin = 0; |
| 167 | } |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 168 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | private void onMeasureExactFormat(int widthMeasureSpec, int heightMeasureSpec) { |
| 173 | // We already know the width mode is EXACTLY if we're here. |
| 174 | final int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| 175 | int widthSize = MeasureSpec.getSize(widthMeasureSpec); |
| 176 | int heightSize = MeasureSpec.getSize(heightMeasureSpec); |
| 177 | |
| 178 | final int widthPadding = getPaddingLeft() + getPaddingRight(); |
| 179 | final int heightPadding = getPaddingTop() + getPaddingBottom(); |
| 180 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 181 | final int itemHeightSpec = getChildMeasureSpec(heightMeasureSpec, heightPadding, |
| 182 | ViewGroup.LayoutParams.WRAP_CONTENT); |
Adam Powell | 367ee32 | 2012-05-06 18:32:33 -0700 | [diff] [blame] | 183 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 184 | widthSize -= widthPadding; |
| 185 | |
| 186 | // Divide the view into cells. |
| 187 | final int cellCount = widthSize / mMinCellSize; |
| 188 | final int cellSizeRemaining = widthSize % mMinCellSize; |
Adam Powell | 3bb421d | 2011-08-16 15:04:53 -0700 | [diff] [blame] | 189 | |
| 190 | if (cellCount == 0) { |
| 191 | // Give up, nothing fits. |
| 192 | setMeasuredDimension(widthSize, 0); |
| 193 | return; |
| 194 | } |
| 195 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 196 | final int cellSize = mMinCellSize + cellSizeRemaining / cellCount; |
| 197 | |
| 198 | int cellsRemaining = cellCount; |
| 199 | int maxChildHeight = 0; |
| 200 | int maxCellsUsed = 0; |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 201 | int expandableItemCount = 0; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 202 | int visibleItemCount = 0; |
| 203 | boolean hasOverflow = false; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 204 | |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 205 | // This is used as a bitfield to locate the smallest items present. Assumes childCount < 64. |
| 206 | long smallestItemsAt = 0; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 207 | |
| 208 | final int childCount = getChildCount(); |
| 209 | for (int i = 0; i < childCount; i++) { |
| 210 | final View child = getChildAt(i); |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 211 | if (child.getVisibility() == GONE) continue; |
| 212 | |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 213 | final boolean isGeneratedItem = child instanceof ActionMenuItemView; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 214 | visibleItemCount++; |
| 215 | |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 216 | if (isGeneratedItem) { |
| 217 | // Reset padding for generated menu item views; it may change below |
| 218 | // and views are recycled. |
| 219 | child.setPadding(mGeneratedItemPadding, 0, mGeneratedItemPadding, 0); |
| 220 | } |
| 221 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 222 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| 223 | lp.expanded = false; |
| 224 | lp.extraPixels = 0; |
| 225 | lp.cellsUsed = 0; |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 226 | lp.expandable = false; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 227 | lp.leftMargin = 0; |
| 228 | lp.rightMargin = 0; |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 229 | lp.preventEdgeOffset = isGeneratedItem && ((ActionMenuItemView) child).hasText(); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 230 | |
| 231 | // Overflow always gets 1 cell. No more, no less. |
| 232 | final int cellsAvailable = lp.isOverflowButton ? 1 : cellsRemaining; |
| 233 | |
| 234 | final int cellsUsed = measureChildForCells(child, cellSize, cellsAvailable, |
Adam Powell | 367ee32 | 2012-05-06 18:32:33 -0700 | [diff] [blame] | 235 | itemHeightSpec, heightPadding); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 236 | |
| 237 | maxCellsUsed = Math.max(maxCellsUsed, cellsUsed); |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 238 | if (lp.expandable) expandableItemCount++; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 239 | if (lp.isOverflowButton) hasOverflow = true; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 240 | |
| 241 | cellsRemaining -= cellsUsed; |
| 242 | maxChildHeight = Math.max(maxChildHeight, child.getMeasuredHeight()); |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 243 | if (cellsUsed == 1) smallestItemsAt |= (1 << i); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 246 | // When we have overflow and a single expanded (text) item, we want to try centering it |
| 247 | // visually in the available space even though overflow consumes some of it. |
| 248 | final boolean centerSingleExpandedItem = hasOverflow && visibleItemCount == 2; |
| 249 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 250 | // Divide space for remaining cells if we have items that can expand. |
| 251 | // Try distributing whole leftover cells to smaller items first. |
| 252 | |
| 253 | boolean needsExpansion = false; |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 254 | while (expandableItemCount > 0 && cellsRemaining > 0) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 255 | int minCells = Integer.MAX_VALUE; |
| 256 | long minCellsAt = 0; // Bit locations are indices of relevant child views |
| 257 | int minCellsItemCount = 0; |
| 258 | for (int i = 0; i < childCount; i++) { |
| 259 | final View child = getChildAt(i); |
| 260 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| 261 | |
| 262 | // Don't try to expand items that shouldn't. |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 263 | if (!lp.expandable) continue; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 264 | |
| 265 | // Mark indices of children that can receive an extra cell. |
| 266 | if (lp.cellsUsed < minCells) { |
| 267 | minCells = lp.cellsUsed; |
| 268 | minCellsAt = 1 << i; |
| 269 | minCellsItemCount = 1; |
| 270 | } else if (lp.cellsUsed == minCells) { |
| 271 | minCellsAt |= 1 << i; |
| 272 | minCellsItemCount++; |
| 273 | } |
| 274 | } |
| 275 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 276 | // Items that get expanded will always be in the set of smallest items when we're done. |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 277 | smallestItemsAt |= minCellsAt; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 278 | |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 279 | if (minCellsItemCount > cellsRemaining) break; // Couldn't expand anything evenly. Stop. |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 280 | |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 281 | // We have enough cells, all minimum size items will be incremented. |
| 282 | minCells++; |
| 283 | |
| 284 | for (int i = 0; i < childCount; i++) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 285 | final View child = getChildAt(i); |
| 286 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 287 | if ((minCellsAt & (1 << i)) == 0) { |
| 288 | // If this item is already at our small item count, mark it for later. |
| 289 | if (lp.cellsUsed == minCells) smallestItemsAt |= 1 << i; |
| 290 | continue; |
| 291 | } |
| 292 | |
| 293 | if (centerSingleExpandedItem && lp.preventEdgeOffset && cellsRemaining == 1) { |
| 294 | // Add padding to this item such that it centers. |
| 295 | child.setPadding(mGeneratedItemPadding + cellSize, 0, mGeneratedItemPadding, 0); |
| 296 | } |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 297 | lp.cellsUsed++; |
| 298 | lp.expanded = true; |
| 299 | cellsRemaining--; |
| 300 | } |
| 301 | |
| 302 | needsExpansion = true; |
| 303 | } |
| 304 | |
| 305 | // Divide any space left that wouldn't divide along cell boundaries |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 306 | // evenly among the smallest items |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 307 | |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 308 | final boolean singleItem = !hasOverflow && visibleItemCount == 1; |
| 309 | if (cellsRemaining > 0 && smallestItemsAt != 0 && |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 310 | (cellsRemaining < visibleItemCount - 1 || singleItem || maxCellsUsed > 1)) { |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 311 | float expandCount = Long.bitCount(smallestItemsAt); |
| 312 | |
| 313 | if (!singleItem) { |
| 314 | // The items at the far edges may only expand by half in order to pin to either side. |
| 315 | if ((smallestItemsAt & 1) != 0) { |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 316 | LayoutParams lp = (LayoutParams) getChildAt(0).getLayoutParams(); |
| 317 | if (!lp.preventEdgeOffset) expandCount -= 0.5f; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 318 | } |
| 319 | if ((smallestItemsAt & (1 << (childCount - 1))) != 0) { |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 320 | LayoutParams lp = ((LayoutParams) getChildAt(childCount - 1).getLayoutParams()); |
| 321 | if (!lp.preventEdgeOffset) expandCount -= 0.5f; |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 322 | } |
| 323 | } |
| 324 | |
Adam Powell | 3bb421d | 2011-08-16 15:04:53 -0700 | [diff] [blame] | 325 | final int extraPixels = expandCount > 0 ? |
| 326 | (int) (cellsRemaining * cellSize / expandCount) : 0; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 327 | |
| 328 | for (int i = 0; i < childCount; i++) { |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 329 | if ((smallestItemsAt & (1 << i)) == 0) continue; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 330 | |
| 331 | final View child = getChildAt(i); |
| 332 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 333 | if (child instanceof ActionMenuItemView) { |
| 334 | // If this is one of our views, expand and measure at the larger size. |
| 335 | lp.extraPixels = extraPixels; |
| 336 | lp.expanded = true; |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 337 | if (i == 0 && !lp.preventEdgeOffset) { |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 338 | // First item gets part of its new padding pushed out of sight. |
| 339 | // The last item will get this implicitly from layout. |
| 340 | lp.leftMargin = -extraPixels / 2; |
| 341 | } |
| 342 | needsExpansion = true; |
| 343 | } else if (lp.isOverflowButton) { |
| 344 | lp.extraPixels = extraPixels; |
| 345 | lp.expanded = true; |
| 346 | lp.rightMargin = -extraPixels / 2; |
| 347 | needsExpansion = true; |
| 348 | } else { |
| 349 | // If we don't know what it is, give it some margins instead |
| 350 | // and let it center within its space. We still want to pin |
| 351 | // against the edges. |
| 352 | if (i != 0) { |
| 353 | lp.leftMargin = extraPixels / 2; |
| 354 | } |
| 355 | if (i != childCount - 1) { |
| 356 | lp.rightMargin = extraPixels / 2; |
| 357 | } |
| 358 | } |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 359 | } |
| 360 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 361 | cellsRemaining = 0; |
| 362 | } |
| 363 | |
| 364 | // Remeasure any items that have had extra space allocated to them. |
| 365 | if (needsExpansion) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 366 | for (int i = 0; i < childCount; i++) { |
| 367 | final View child = getChildAt(i); |
| 368 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| 369 | |
| 370 | if (!lp.expanded) continue; |
| 371 | |
| 372 | final int width = lp.cellsUsed * cellSize + lp.extraPixels; |
Adam Powell | 367ee32 | 2012-05-06 18:32:33 -0700 | [diff] [blame] | 373 | child.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY), |
| 374 | itemHeightSpec); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 375 | } |
| 376 | } |
| 377 | |
| 378 | if (heightMode != MeasureSpec.EXACTLY) { |
| 379 | heightSize = maxChildHeight; |
| 380 | } |
| 381 | |
| 382 | setMeasuredDimension(widthSize, heightSize); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | /** |
| 386 | * Measure a child view to fit within cell-based formatting. The child's width |
| 387 | * will be measured to a whole multiple of cellSize. |
| 388 | * |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 389 | * <p>Sets the expandable and cellsUsed fields of LayoutParams. |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 390 | * |
| 391 | * @param child Child to measure |
| 392 | * @param cellSize Size of one cell |
| 393 | * @param cellsRemaining Number of cells remaining that this view can expand to fill |
| 394 | * @param parentHeightMeasureSpec MeasureSpec used by the parent view |
| 395 | * @param parentHeightPadding Padding present in the parent view |
| 396 | * @return Number of cells this child was measured to occupy |
| 397 | */ |
| 398 | static int measureChildForCells(View child, int cellSize, int cellsRemaining, |
| 399 | int parentHeightMeasureSpec, int parentHeightPadding) { |
| 400 | final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 401 | |
| 402 | final int childHeightSize = MeasureSpec.getSize(parentHeightMeasureSpec) - |
| 403 | parentHeightPadding; |
| 404 | final int childHeightMode = MeasureSpec.getMode(parentHeightMeasureSpec); |
| 405 | final int childHeightSpec = MeasureSpec.makeMeasureSpec(childHeightSize, childHeightMode); |
| 406 | |
Adam Powell | a7dec6d | 2012-04-09 15:54:01 -0700 | [diff] [blame] | 407 | final ActionMenuItemView itemView = child instanceof ActionMenuItemView ? |
| 408 | (ActionMenuItemView) child : null; |
| 409 | final boolean hasText = itemView != null && itemView.hasText(); |
| 410 | |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 411 | int cellsUsed = 0; |
Adam Powell | a7dec6d | 2012-04-09 15:54:01 -0700 | [diff] [blame] | 412 | if (cellsRemaining > 0 && (!hasText || cellsRemaining >= 2)) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 413 | final int childWidthSpec = MeasureSpec.makeMeasureSpec( |
| 414 | cellSize * cellsRemaining, MeasureSpec.AT_MOST); |
| 415 | child.measure(childWidthSpec, childHeightSpec); |
| 416 | |
| 417 | final int measuredWidth = child.getMeasuredWidth(); |
| 418 | cellsUsed = measuredWidth / cellSize; |
| 419 | if (measuredWidth % cellSize != 0) cellsUsed++; |
Adam Powell | a7dec6d | 2012-04-09 15:54:01 -0700 | [diff] [blame] | 420 | if (hasText && cellsUsed < 2) cellsUsed = 2; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 421 | } |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 422 | |
Adam Powell | a7dec6d | 2012-04-09 15:54:01 -0700 | [diff] [blame] | 423 | final boolean expandable = !lp.isOverflowButton && hasText; |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 424 | lp.expandable = expandable; |
| 425 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 426 | lp.cellsUsed = cellsUsed; |
| 427 | final int targetWidth = cellsUsed * cellSize; |
| 428 | child.measure(MeasureSpec.makeMeasureSpec(targetWidth, MeasureSpec.EXACTLY), |
| 429 | childHeightSpec); |
| 430 | return cellsUsed; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | @Override |
| 434 | protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| 435 | if (!mFormatItems) { |
| 436 | super.onLayout(changed, left, top, right, bottom); |
| 437 | return; |
| 438 | } |
| 439 | |
| 440 | final int childCount = getChildCount(); |
Chris Banes | 1970cfd4 | 2014-10-29 11:04:49 +0000 | [diff] [blame] | 441 | final int midVertical = (bottom - top) / 2; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 442 | final int dividerWidth = getDividerWidth(); |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 443 | int overflowWidth = 0; |
| 444 | int nonOverflowWidth = 0; |
| 445 | int nonOverflowCount = 0; |
| 446 | int widthRemaining = right - left - getPaddingRight() - getPaddingLeft(); |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 447 | boolean hasOverflow = false; |
Fabrice Di Meglio | 0762cec | 2012-09-05 19:17:20 -0700 | [diff] [blame] | 448 | final boolean isLayoutRtl = isLayoutRtl(); |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 449 | for (int i = 0; i < childCount; i++) { |
| 450 | final View v = getChildAt(i); |
| 451 | if (v.getVisibility() == GONE) { |
| 452 | continue; |
| 453 | } |
| 454 | |
| 455 | LayoutParams p = (LayoutParams) v.getLayoutParams(); |
| 456 | if (p.isOverflowButton) { |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 457 | overflowWidth = v.getMeasuredWidth(); |
| 458 | if (hasDividerBeforeChildAt(i)) { |
| 459 | overflowWidth += dividerWidth; |
| 460 | } |
| 461 | |
| 462 | int height = v.getMeasuredHeight(); |
Fabrice Di Meglio | 0762cec | 2012-09-05 19:17:20 -0700 | [diff] [blame] | 463 | int r; |
| 464 | int l; |
| 465 | if (isLayoutRtl) { |
| 466 | l = getPaddingLeft() + p.leftMargin; |
| 467 | r = l + overflowWidth; |
| 468 | } else { |
| 469 | r = getWidth() - getPaddingRight() - p.rightMargin; |
| 470 | l = r - overflowWidth; |
| 471 | } |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 472 | int t = midVertical - (height / 2); |
| 473 | int b = t + height; |
| 474 | v.layout(l, t, r, b); |
| 475 | |
| 476 | widthRemaining -= overflowWidth; |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 477 | hasOverflow = true; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 478 | } else { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 479 | final int size = v.getMeasuredWidth() + p.leftMargin + p.rightMargin; |
| 480 | nonOverflowWidth += size; |
| 481 | widthRemaining -= size; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 482 | if (hasDividerBeforeChildAt(i)) { |
| 483 | nonOverflowWidth += dividerWidth; |
| 484 | } |
| 485 | nonOverflowCount++; |
| 486 | } |
| 487 | } |
| 488 | |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 489 | if (childCount == 1 && !hasOverflow) { |
| 490 | // Center a single child |
| 491 | final View v = getChildAt(0); |
| 492 | final int width = v.getMeasuredWidth(); |
| 493 | final int height = v.getMeasuredHeight(); |
| 494 | final int midHorizontal = (right - left) / 2; |
| 495 | final int l = midHorizontal - width / 2; |
| 496 | final int t = midVertical - height / 2; |
| 497 | v.layout(l, t, l + width, t + height); |
| 498 | return; |
| 499 | } |
| 500 | |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 501 | final int spacerCount = nonOverflowCount - (hasOverflow ? 0 : 1); |
Adam Powell | 14b7e2c | 2011-08-12 11:11:50 -0700 | [diff] [blame] | 502 | final int spacerSize = Math.max(0, spacerCount > 0 ? widthRemaining / spacerCount : 0); |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 503 | |
Fabrice Di Meglio | 0762cec | 2012-09-05 19:17:20 -0700 | [diff] [blame] | 504 | if (isLayoutRtl) { |
| 505 | int startRight = getWidth() - getPaddingRight(); |
| 506 | for (int i = 0; i < childCount; i++) { |
| 507 | final View v = getChildAt(i); |
| 508 | final LayoutParams lp = (LayoutParams) v.getLayoutParams(); |
| 509 | if (v.getVisibility() == GONE || lp.isOverflowButton) { |
| 510 | continue; |
| 511 | } |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 512 | |
Fabrice Di Meglio | 0762cec | 2012-09-05 19:17:20 -0700 | [diff] [blame] | 513 | startRight -= lp.rightMargin; |
| 514 | int width = v.getMeasuredWidth(); |
| 515 | int height = v.getMeasuredHeight(); |
| 516 | int t = midVertical - height / 2; |
| 517 | v.layout(startRight - width, t, startRight, t + height); |
| 518 | startRight -= width + lp.leftMargin + spacerSize; |
| 519 | } |
| 520 | } else { |
| 521 | int startLeft = getPaddingLeft(); |
| 522 | for (int i = 0; i < childCount; i++) { |
| 523 | final View v = getChildAt(i); |
| 524 | final LayoutParams lp = (LayoutParams) v.getLayoutParams(); |
| 525 | if (v.getVisibility() == GONE || lp.isOverflowButton) { |
| 526 | continue; |
| 527 | } |
| 528 | |
| 529 | startLeft += lp.leftMargin; |
| 530 | int width = v.getMeasuredWidth(); |
| 531 | int height = v.getMeasuredHeight(); |
| 532 | int t = midVertical - height / 2; |
| 533 | v.layout(startLeft, t, startLeft + width, t + height); |
| 534 | startLeft += width + lp.rightMargin + spacerSize; |
| 535 | } |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 536 | } |
| 537 | } |
| 538 | |
| 539 | @Override |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 540 | public void onDetachedFromWindow() { |
| 541 | super.onDetachedFromWindow(); |
Adam Powell | e021e6e | 2014-05-23 17:27:24 -0700 | [diff] [blame] | 542 | dismissPopupMenus(); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 543 | } |
| 544 | |
Chris Banes | a41b789 | 2015-06-09 13:36:44 +0000 | [diff] [blame] | 545 | /** |
| 546 | * Set the icon to use for the overflow button. |
| 547 | * |
| 548 | * @param icon Drawable to set, may be null to clear the icon |
| 549 | */ |
| 550 | public void setOverflowIcon(@Nullable Drawable icon) { |
| 551 | getMenu(); |
| 552 | mPresenter.setOverflowIcon(icon); |
| 553 | } |
| 554 | |
| 555 | /** |
| 556 | * Return the current drawable used as the overflow icon. |
| 557 | * |
| 558 | * @return The overflow icon drawable |
| 559 | */ |
| 560 | @Nullable |
| 561 | public Drawable getOverflowIcon() { |
| 562 | getMenu(); |
| 563 | return mPresenter.getOverflowIcon(); |
| 564 | } |
| 565 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 566 | /** @hide */ |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 567 | public boolean isOverflowReserved() { |
| 568 | return mReserveOverflow; |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 569 | } |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 570 | |
| 571 | /** @hide */ |
Adam Powell | b366bba | 2010-07-20 14:26:38 -0700 | [diff] [blame] | 572 | public void setOverflowReserved(boolean reserveOverflow) { |
| 573 | mReserveOverflow = reserveOverflow; |
| 574 | } |
Adam Powell | f0ad6e6 | 2011-01-10 17:14:06 -0800 | [diff] [blame] | 575 | |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 576 | @Override |
| 577 | protected LayoutParams generateDefaultLayoutParams() { |
| 578 | LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, |
| 579 | LayoutParams.WRAP_CONTENT); |
Adam Powell | 6b336f8 | 2010-08-10 20:13:01 -0700 | [diff] [blame] | 580 | params.gravity = Gravity.CENTER_VERTICAL; |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 581 | return params; |
| 582 | } |
Aurimas Liutikas | 99441c5 | 2016-10-11 16:48:32 -0700 | [diff] [blame] | 583 | |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 584 | @Override |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 585 | public LayoutParams generateLayoutParams(AttributeSet attrs) { |
| 586 | return new LayoutParams(getContext(), attrs); |
| 587 | } |
| 588 | |
| 589 | @Override |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 590 | protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { |
Adam Powell | 8c1b02e | 2012-07-16 17:58:18 -0700 | [diff] [blame] | 591 | if (p != null) { |
| 592 | final LayoutParams result = p instanceof LayoutParams |
| 593 | ? new LayoutParams((LayoutParams) p) |
| 594 | : new LayoutParams(p); |
Adam Powell | 3f476b3 | 2011-01-03 19:25:36 -0800 | [diff] [blame] | 595 | if (result.gravity <= Gravity.NO_GRAVITY) { |
| 596 | result.gravity = Gravity.CENTER_VERTICAL; |
| 597 | } |
| 598 | return result; |
| 599 | } |
Adam Powell | 7ade1be | 2010-06-17 12:51:21 -0700 | [diff] [blame] | 600 | return generateDefaultLayoutParams(); |
| 601 | } |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 602 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 603 | @Override |
| 604 | protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 605 | return p != null && p instanceof LayoutParams; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 606 | } |
| 607 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 608 | /** @hide */ |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 609 | public LayoutParams generateOverflowButtonLayoutParams() { |
| 610 | LayoutParams result = generateDefaultLayoutParams(); |
| 611 | result.isOverflowButton = true; |
| 612 | return result; |
| 613 | } |
| 614 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 615 | /** @hide */ |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 616 | public boolean invokeItem(MenuItemImpl item) { |
| 617 | return mMenu.performItemAction(item, 0); |
| 618 | } |
| 619 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 620 | /** @hide */ |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 621 | public int getWindowAnimations() { |
| 622 | return 0; |
| 623 | } |
| 624 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 625 | /** @hide */ |
Alan Viverette | 28a8468 | 2016-01-04 13:43:23 -0500 | [diff] [blame] | 626 | public void initialize(@Nullable MenuBuilder menu) { |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 627 | mMenu = menu; |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 628 | } |
| 629 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 630 | /** |
| 631 | * Returns the Menu object that this ActionMenuView is currently presenting. |
| 632 | * |
| 633 | * <p>Applications should use this method to obtain the ActionMenuView's Menu object |
| 634 | * and inflate or add content to it as necessary.</p> |
| 635 | * |
| 636 | * @return the Menu presented by this view |
| 637 | */ |
| 638 | public Menu getMenu() { |
| 639 | if (mMenu == null) { |
| 640 | final Context context = getContext(); |
| 641 | mMenu = new MenuBuilder(context); |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 642 | mMenu.setCallback(new MenuBuilderCallback()); |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 643 | mPresenter = new ActionMenuPresenter(context); |
Adam Powell | e8d1536 | 2014-09-09 13:51:16 -0700 | [diff] [blame] | 644 | mPresenter.setReserveOverflow(true); |
Adam Powell | 04c0d46 | 2014-09-04 16:10:24 -0700 | [diff] [blame] | 645 | mPresenter.setCallback(mActionMenuPresenterCallback != null |
| 646 | ? mActionMenuPresenterCallback : new ActionMenuPresenterCallback()); |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 647 | mMenu.addMenuPresenter(mPresenter, mPopupContext); |
Adam Powell | 07a7454 | 2014-05-30 15:52:44 -0700 | [diff] [blame] | 648 | mPresenter.setMenuView(this); |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | return mMenu; |
| 652 | } |
| 653 | |
| 654 | /** |
Adam Powell | 04c0d46 | 2014-09-04 16:10:24 -0700 | [diff] [blame] | 655 | * Must be called before the first call to getMenu() |
| 656 | * @hide |
| 657 | */ |
Adam Powell | c461250 | 2014-09-04 19:16:39 -0700 | [diff] [blame] | 658 | public void setMenuCallbacks(MenuPresenter.Callback pcb, MenuBuilder.Callback mcb) { |
| 659 | mActionMenuPresenterCallback = pcb; |
| 660 | mMenuBuilderCallback = mcb; |
Adam Powell | 04c0d46 | 2014-09-04 16:10:24 -0700 | [diff] [blame] | 661 | } |
| 662 | |
| 663 | /** |
Adam Powell | e021e6e | 2014-05-23 17:27:24 -0700 | [diff] [blame] | 664 | * Returns the current menu or null if one has not yet been configured. |
| 665 | * @hide Internal use only for action bar integration |
| 666 | */ |
| 667 | public MenuBuilder peekMenu() { |
| 668 | return mMenu; |
| 669 | } |
| 670 | |
| 671 | /** |
| 672 | * Show the overflow items from the associated menu. |
| 673 | * |
| 674 | * @return true if the menu was able to be shown, false otherwise |
| 675 | */ |
| 676 | public boolean showOverflowMenu() { |
| 677 | return mPresenter != null && mPresenter.showOverflowMenu(); |
| 678 | } |
| 679 | |
| 680 | /** |
| 681 | * Hide the overflow items from the associated menu. |
| 682 | * |
| 683 | * @return true if the menu was able to be hidden, false otherwise |
| 684 | */ |
| 685 | public boolean hideOverflowMenu() { |
| 686 | return mPresenter != null && mPresenter.hideOverflowMenu(); |
| 687 | } |
| 688 | |
| 689 | /** |
| 690 | * Check whether the overflow menu is currently showing. This may not reflect |
| 691 | * a pending show operation in progress. |
| 692 | * |
| 693 | * @return true if the overflow menu is currently showing |
| 694 | */ |
| 695 | public boolean isOverflowMenuShowing() { |
| 696 | return mPresenter != null && mPresenter.isOverflowMenuShowing(); |
| 697 | } |
| 698 | |
| 699 | /** @hide */ |
| 700 | public boolean isOverflowMenuShowPending() { |
| 701 | return mPresenter != null && mPresenter.isOverflowMenuShowPending(); |
| 702 | } |
| 703 | |
| 704 | /** |
| 705 | * Dismiss any popups associated with this menu view. |
| 706 | */ |
| 707 | public void dismissPopupMenus() { |
| 708 | if (mPresenter != null) { |
| 709 | mPresenter.dismissPopupMenus(); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | /** |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 714 | * @hide Private LinearLayout (superclass) API. Un-hide if LinearLayout API is made public. |
| 715 | */ |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 716 | @Override |
| 717 | protected boolean hasDividerBeforeChildAt(int childIndex) { |
Jake Wharton | 825992f | 2012-07-28 21:31:51 -0700 | [diff] [blame] | 718 | if (childIndex == 0) { |
| 719 | return false; |
| 720 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 721 | final View childBefore = getChildAt(childIndex - 1); |
| 722 | final View child = getChildAt(childIndex); |
| 723 | boolean result = false; |
| 724 | if (childIndex < getChildCount() && childBefore instanceof ActionMenuChildView) { |
| 725 | result |= ((ActionMenuChildView) childBefore).needsDividerAfter(); |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 726 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 727 | if (childIndex > 0 && child instanceof ActionMenuChildView) { |
| 728 | result |= ((ActionMenuChildView) child).needsDividerBefore(); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 729 | } |
Adam Powell | be4d68e | 2010-10-08 18:16:34 -0700 | [diff] [blame] | 730 | return result; |
| 731 | } |
| 732 | |
Alan Viverette | a54956a | 2015-01-07 16:05:02 -0800 | [diff] [blame] | 733 | /** @hide */ |
| 734 | public boolean dispatchPopulateAccessibilityEventInternal(AccessibilityEvent event) { |
Adam Powell | 7bc3ca0 | 2011-08-26 18:29:58 -0700 | [diff] [blame] | 735 | return false; |
| 736 | } |
| 737 | |
Adam Powell | 07a7454 | 2014-05-30 15:52:44 -0700 | [diff] [blame] | 738 | /** @hide */ |
| 739 | public void setExpandedActionViewsExclusive(boolean exclusive) { |
| 740 | mPresenter.setExpandedActionViewsExclusive(exclusive); |
| 741 | } |
| 742 | |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 743 | /** |
| 744 | * Interface responsible for receiving menu item click events if the items themselves |
| 745 | * do not have individual item click listeners. |
| 746 | */ |
| 747 | public interface OnMenuItemClickListener { |
| 748 | /** |
| 749 | * This method will be invoked when a menu item is clicked if the item itself did |
| 750 | * not already handle the event. |
| 751 | * |
| 752 | * @param item {@link MenuItem} that was clicked |
| 753 | * @return <code>true</code> if the event was handled, <code>false</code> otherwise. |
| 754 | */ |
| 755 | public boolean onMenuItemClick(MenuItem item); |
| 756 | } |
| 757 | |
| 758 | private class MenuBuilderCallback implements MenuBuilder.Callback { |
| 759 | @Override |
| 760 | public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) { |
| 761 | return mOnMenuItemClickListener != null && |
| 762 | mOnMenuItemClickListener.onMenuItemClick(item); |
| 763 | } |
| 764 | |
| 765 | @Override |
| 766 | public void onMenuModeChange(MenuBuilder menu) { |
Adam Powell | c461250 | 2014-09-04 19:16:39 -0700 | [diff] [blame] | 767 | if (mMenuBuilderCallback != null) { |
| 768 | mMenuBuilderCallback.onMenuModeChange(menu); |
| 769 | } |
Adam Powell | e43340c | 2014-03-17 19:10:43 -0700 | [diff] [blame] | 770 | } |
| 771 | } |
| 772 | |
| 773 | private class ActionMenuPresenterCallback implements ActionMenuPresenter.Callback { |
| 774 | @Override |
| 775 | public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| 776 | } |
| 777 | |
| 778 | @Override |
| 779 | public boolean onOpenSubMenu(MenuBuilder subMenu) { |
| 780 | return false; |
| 781 | } |
| 782 | } |
| 783 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 784 | /** @hide */ |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 785 | public interface ActionMenuChildView { |
| 786 | public boolean needsDividerBefore(); |
| 787 | public boolean needsDividerAfter(); |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 788 | } |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 789 | |
| 790 | public static class LayoutParams extends LinearLayout.LayoutParams { |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 791 | /** @hide */ |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 792 | @ViewDebug.ExportedProperty(category = "layout") |
| 793 | public boolean isOverflowButton; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 794 | |
| 795 | /** @hide */ |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 796 | @ViewDebug.ExportedProperty(category = "layout") |
| 797 | public int cellsUsed; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 798 | |
| 799 | /** @hide */ |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 800 | @ViewDebug.ExportedProperty(category = "layout") |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 801 | public int extraPixels; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 802 | |
| 803 | /** @hide */ |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 804 | @ViewDebug.ExportedProperty(category = "layout") |
| 805 | public boolean expandable; |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 806 | |
| 807 | /** @hide */ |
Adam Powell | be3c329 | 2011-08-24 12:52:28 -0700 | [diff] [blame] | 808 | @ViewDebug.ExportedProperty(category = "layout") |
| 809 | public boolean preventEdgeOffset; |
Adam Powell | 160bb7f | 2011-07-07 10:22:27 -0700 | [diff] [blame] | 810 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 811 | /** @hide */ |
Adam Powell | 35aecd5 | 2011-07-01 13:43:49 -0700 | [diff] [blame] | 812 | public boolean expanded; |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 813 | |
| 814 | public LayoutParams(Context c, AttributeSet attrs) { |
| 815 | super(c, attrs); |
| 816 | } |
| 817 | |
Adam Powell | 8c1b02e | 2012-07-16 17:58:18 -0700 | [diff] [blame] | 818 | public LayoutParams(ViewGroup.LayoutParams other) { |
| 819 | super(other); |
| 820 | } |
| 821 | |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 822 | public LayoutParams(LayoutParams other) { |
| 823 | super((LinearLayout.LayoutParams) other); |
| 824 | isOverflowButton = other.isOverflowButton; |
| 825 | } |
| 826 | |
| 827 | public LayoutParams(int width, int height) { |
| 828 | super(width, height); |
| 829 | isOverflowButton = false; |
| 830 | } |
| 831 | |
Adam Powell | fa18d18 | 2014-01-07 15:56:59 -0800 | [diff] [blame] | 832 | /** @hide */ |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 833 | public LayoutParams(int width, int height, boolean isOverflowButton) { |
| 834 | super(width, height); |
| 835 | this.isOverflowButton = isOverflowButton; |
| 836 | } |
Siva Velusamy | 94a6d15 | 2015-05-05 15:07:00 -0700 | [diff] [blame] | 837 | |
| 838 | /** @hide */ |
| 839 | @Override |
| 840 | protected void encodeProperties(@NonNull ViewHierarchyEncoder encoder) { |
| 841 | super.encodeProperties(encoder); |
| 842 | |
| 843 | encoder.addProperty("layout:overFlowButton", isOverflowButton); |
| 844 | encoder.addProperty("layout:cellsUsed", cellsUsed); |
| 845 | encoder.addProperty("layout:extraPixels", extraPixels); |
| 846 | encoder.addProperty("layout:expandable", expandable); |
| 847 | encoder.addProperty("layout:preventEdgeOffset", preventEdgeOffset); |
| 848 | } |
Adam Powell | 640a66e | 2011-04-29 10:18:53 -0700 | [diff] [blame] | 849 | } |
Adam Powell | 96675b1 | 2010-06-10 18:58:59 -0700 | [diff] [blame] | 850 | } |