Adam Powell | 4267534 | 2010-07-09 18:02:59 -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 | */ |
| 16 | |
| 17 | package com.android.internal.view.menu; |
| 18 | |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 19 | import android.content.Context; |
Adam Powell | 38639b1 | 2011-06-17 16:02:32 -0700 | [diff] [blame] | 20 | import android.content.res.Resources; |
Adam Powell | 11ed1d6 | 2011-07-11 21:19:59 -0700 | [diff] [blame] | 21 | import android.os.Parcelable; |
Adam Powell | 54c94de | 2013-09-26 15:36:34 -0700 | [diff] [blame] | 22 | import android.view.Gravity; |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 23 | import android.view.KeyEvent; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 24 | import android.view.LayoutInflater; |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 25 | import android.view.MenuItem; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 26 | import android.view.View; |
| 27 | import android.view.View.MeasureSpec; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 28 | import android.view.ViewGroup; |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 29 | import android.view.ViewTreeObserver; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 30 | import android.widget.AdapterView; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 31 | import android.widget.BaseAdapter; |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 32 | import android.widget.FrameLayout; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 33 | import android.widget.ListAdapter; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 34 | import android.widget.ListPopupWindow; |
Adam Powell | 6c6f575 | 2010-08-20 18:34:46 -0700 | [diff] [blame] | 35 | import android.widget.PopupWindow; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 36 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 37 | import java.util.ArrayList; |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 38 | |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 39 | /** |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 40 | * Presents a menu as a small, simple popup anchored to another view. |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 41 | * @hide |
| 42 | */ |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 43 | public class MenuPopupHelper implements AdapterView.OnItemClickListener, View.OnKeyListener, |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 44 | ViewTreeObserver.OnGlobalLayoutListener, PopupWindow.OnDismissListener, |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 45 | View.OnAttachStateChangeListener, MenuPresenter { |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 46 | private static final String TAG = "MenuPopupHelper"; |
| 47 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 48 | static final int ITEM_LAYOUT = com.android.internal.R.layout.popup_menu_item_layout; |
| 49 | |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 50 | private final Context mContext; |
| 51 | private final LayoutInflater mInflater; |
| 52 | private final MenuBuilder mMenu; |
| 53 | private final MenuAdapter mAdapter; |
| 54 | private final boolean mOverflowOnly; |
| 55 | private final int mPopupMaxWidth; |
Alan Viverette | 560f170 | 2014-05-05 14:40:07 -0700 | [diff] [blame] | 56 | private final int mPopupStyleAttr; |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 57 | private final int mPopupStyleRes; |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 58 | |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 59 | private View mAnchorView; |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 60 | private ListPopupWindow mPopup; |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 61 | private ViewTreeObserver mTreeObserver; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 62 | private Callback mPresenterCallback; |
Adam Powell | e2b03a6 | 2011-01-25 14:39:02 -0800 | [diff] [blame] | 63 | |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 64 | boolean mForceShowIcon; |
| 65 | |
| 66 | private ViewGroup mMeasureParent; |
| 67 | |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 68 | /** Whether the cached content width value is valid. */ |
| 69 | private boolean mHasContentWidth; |
| 70 | |
| 71 | /** Cached content width from {@link #measureContentWidth}. */ |
| 72 | private int mContentWidth; |
| 73 | |
Adam Powell | 54c94de | 2013-09-26 15:36:34 -0700 | [diff] [blame] | 74 | private int mDropDownGravity = Gravity.NO_GRAVITY; |
| 75 | |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 76 | public MenuPopupHelper(Context context, MenuBuilder menu) { |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 77 | this(context, menu, null, false, com.android.internal.R.attr.popupMenuStyle, 0); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | public MenuPopupHelper(Context context, MenuBuilder menu, View anchorView) { |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 81 | this(context, menu, anchorView, false, com.android.internal.R.attr.popupMenuStyle, 0); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Alan Viverette | 560f170 | 2014-05-05 14:40:07 -0700 | [diff] [blame] | 84 | public MenuPopupHelper(Context context, MenuBuilder menu, View anchorView, |
| 85 | boolean overflowOnly, int popupStyleAttr) { |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 86 | this(context, menu, anchorView, overflowOnly, popupStyleAttr, 0); |
| 87 | } |
| 88 | |
| 89 | public MenuPopupHelper(Context context, MenuBuilder menu, View anchorView, |
| 90 | boolean overflowOnly, int popupStyleAttr, int popupStyleRes) { |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 91 | mContext = context; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 92 | mInflater = LayoutInflater.from(context); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 93 | mMenu = menu; |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 94 | mAdapter = new MenuAdapter(mMenu); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 95 | mOverflowOnly = overflowOnly; |
Alan Viverette | 560f170 | 2014-05-05 14:40:07 -0700 | [diff] [blame] | 96 | mPopupStyleAttr = popupStyleAttr; |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 97 | mPopupStyleRes = popupStyleRes; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 98 | |
Adam Powell | 38639b1 | 2011-06-17 16:02:32 -0700 | [diff] [blame] | 99 | final Resources res = context.getResources(); |
| 100 | mPopupMaxWidth = Math.max(res.getDisplayMetrics().widthPixels / 2, |
| 101 | res.getDimensionPixelSize(com.android.internal.R.dimen.config_prefDialogWidth)); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 102 | |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 103 | mAnchorView = anchorView; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 104 | |
Alan Viverette | 3d0f21d | 2014-07-10 16:15:01 -0700 | [diff] [blame] | 105 | // Present the menu using our context, not the menu builder's context. |
| 106 | menu.addMenuPresenter(this, context); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Adam Powell | f0ad6e6 | 2011-01-10 17:14:06 -0800 | [diff] [blame] | 109 | public void setAnchorView(View anchor) { |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 110 | mAnchorView = anchor; |
Adam Powell | f0ad6e6 | 2011-01-10 17:14:06 -0800 | [diff] [blame] | 111 | } |
| 112 | |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 113 | public void setForceShowIcon(boolean forceShow) { |
| 114 | mForceShowIcon = forceShow; |
| 115 | } |
| 116 | |
Adam Powell | 54c94de | 2013-09-26 15:36:34 -0700 | [diff] [blame] | 117 | public void setGravity(int gravity) { |
| 118 | mDropDownGravity = gravity; |
| 119 | } |
| 120 | |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 121 | public void show() { |
Adam Powell | 5e3f284 | 2011-01-07 17:16:56 -0800 | [diff] [blame] | 122 | if (!tryShow()) { |
| 123 | throw new IllegalStateException("MenuPopupHelper cannot be used without an anchor"); |
| 124 | } |
| 125 | } |
| 126 | |
Alan Viverette | ca6a3611 | 2013-08-16 14:41:06 -0700 | [diff] [blame] | 127 | public ListPopupWindow getPopup() { |
| 128 | return mPopup; |
| 129 | } |
| 130 | |
Adam Powell | 5e3f284 | 2011-01-07 17:16:56 -0800 | [diff] [blame] | 131 | public boolean tryShow() { |
Alan Viverette | 2963252 | 2014-10-15 17:19:30 -0700 | [diff] [blame^] | 132 | mPopup = new ListPopupWindow(mContext, null, mPopupStyleAttr, mPopupStyleRes); |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 133 | mPopup.setOnDismissListener(this); |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 134 | mPopup.setOnItemClickListener(this); |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 135 | mPopup.setAdapter(mAdapter); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 136 | mPopup.setModal(true); |
| 137 | |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 138 | View anchor = mAnchorView; |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 139 | if (anchor != null) { |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 140 | final boolean addGlobalListener = mTreeObserver == null; |
| 141 | mTreeObserver = anchor.getViewTreeObserver(); // Refresh to latest |
| 142 | if (addGlobalListener) mTreeObserver.addOnGlobalLayoutListener(this); |
| 143 | anchor.addOnAttachStateChangeListener(this); |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 144 | mPopup.setAnchorView(anchor); |
Adam Powell | 54c94de | 2013-09-26 15:36:34 -0700 | [diff] [blame] | 145 | mPopup.setDropDownGravity(mDropDownGravity); |
Adam Powell | 4be0d52 | 2010-08-03 17:53:14 -0700 | [diff] [blame] | 146 | } else { |
Adam Powell | 5e3f284 | 2011-01-07 17:16:56 -0800 | [diff] [blame] | 147 | return false; |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 148 | } |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 149 | |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 150 | if (!mHasContentWidth) { |
| 151 | mContentWidth = measureContentWidth(); |
| 152 | mHasContentWidth = true; |
| 153 | } |
| 154 | |
| 155 | mPopup.setContentWidth(mContentWidth); |
Adam Powell | aa0b92c | 2010-12-13 22:38:53 -0800 | [diff] [blame] | 156 | mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 157 | mPopup.show(); |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 158 | mPopup.getListView().setOnKeyListener(this); |
Adam Powell | 5e3f284 | 2011-01-07 17:16:56 -0800 | [diff] [blame] | 159 | return true; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | public void dismiss() { |
Adam Powell | 3d3da27 | 2010-08-11 18:06:17 -0700 | [diff] [blame] | 163 | if (isShowing()) { |
| 164 | mPopup.dismiss(); |
| 165 | } |
Adam Powell | 8515ee8 | 2010-11-30 14:09:55 -0800 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | public void onDismiss() { |
| 169 | mPopup = null; |
Adam Powell | 42b91bb | 2011-06-21 18:32:26 -0700 | [diff] [blame] | 170 | mMenu.close(); |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 171 | if (mTreeObserver != null) { |
| 172 | if (!mTreeObserver.isAlive()) mTreeObserver = mAnchorView.getViewTreeObserver(); |
Adam Powell | ca51e87 | 2011-02-14 19:54:29 -0800 | [diff] [blame] | 173 | mTreeObserver.removeGlobalOnLayoutListener(this); |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 174 | mTreeObserver = null; |
Adam Powell | ed8b403 | 2010-11-16 10:22:35 -0800 | [diff] [blame] | 175 | } |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 176 | mAnchorView.removeOnAttachStateChangeListener(this); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 177 | } |
| 178 | |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 179 | public boolean isShowing() { |
| 180 | return mPopup != null && mPopup.isShowing(); |
| 181 | } |
| 182 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 183 | @Override |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 184 | public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 185 | MenuAdapter adapter = mAdapter; |
| 186 | adapter.mAdapterMenu.performItemAction(adapter.getItem(position), 0); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 187 | } |
| 188 | |
Adam Powell | 8028dd3 | 2010-07-15 10:16:33 -0700 | [diff] [blame] | 189 | public boolean onKey(View v, int keyCode, KeyEvent event) { |
| 190 | if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_MENU) { |
| 191 | dismiss(); |
| 192 | return true; |
| 193 | } |
| 194 | return false; |
| 195 | } |
| 196 | |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 197 | private int measureContentWidth() { |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 198 | // Menus don't tend to be long, so this is more sane than it looks. |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 199 | int maxWidth = 0; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 200 | View itemView = null; |
Adam Powell | 50f784c | 2010-12-19 16:12:19 -0800 | [diff] [blame] | 201 | int itemType = 0; |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 202 | |
| 203 | final ListAdapter adapter = mAdapter; |
| 204 | final int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); |
| 205 | final int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 206 | final int count = adapter.getCount(); |
| 207 | for (int i = 0; i < count; i++) { |
Adam Powell | 50f784c | 2010-12-19 16:12:19 -0800 | [diff] [blame] | 208 | final int positionType = adapter.getItemViewType(i); |
| 209 | if (positionType != itemType) { |
| 210 | itemType = positionType; |
| 211 | itemView = null; |
| 212 | } |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 213 | |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 214 | if (mMeasureParent == null) { |
| 215 | mMeasureParent = new FrameLayout(mContext); |
| 216 | } |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 217 | |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 218 | itemView = adapter.getView(i, itemView, mMeasureParent); |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 219 | itemView.measure(widthMeasureSpec, heightMeasureSpec); |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 220 | |
| 221 | final int itemWidth = itemView.getMeasuredWidth(); |
| 222 | if (itemWidth >= mPopupMaxWidth) { |
| 223 | return mPopupMaxWidth; |
| 224 | } else if (itemWidth > maxWidth) { |
| 225 | maxWidth = itemWidth; |
| 226 | } |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 227 | } |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 228 | |
| 229 | return maxWidth; |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 230 | } |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 231 | |
| 232 | @Override |
| 233 | public void onGlobalLayout() { |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 234 | if (isShowing()) { |
| 235 | final View anchor = mAnchorView; |
Adam Powell | ca51e87 | 2011-02-14 19:54:29 -0800 | [diff] [blame] | 236 | if (anchor == null || !anchor.isShown()) { |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 237 | dismiss(); |
Adam Powell | ca51e87 | 2011-02-14 19:54:29 -0800 | [diff] [blame] | 238 | } else if (isShowing()) { |
Adam Powell | aa0b92c | 2010-12-13 22:38:53 -0800 | [diff] [blame] | 239 | // Recompute window size and position |
| 240 | mPopup.show(); |
Adam Powell | 0458796 | 2010-11-11 22:15:07 -0800 | [diff] [blame] | 241 | } |
| 242 | } |
| 243 | } |
Adam Powell | 4afd62b | 2011-02-18 15:02:18 -0800 | [diff] [blame] | 244 | |
| 245 | @Override |
| 246 | public void onViewAttachedToWindow(View v) { |
| 247 | } |
| 248 | |
| 249 | @Override |
| 250 | public void onViewDetachedFromWindow(View v) { |
| 251 | if (mTreeObserver != null) { |
| 252 | if (!mTreeObserver.isAlive()) mTreeObserver = v.getViewTreeObserver(); |
| 253 | mTreeObserver.removeGlobalOnLayoutListener(this); |
| 254 | } |
| 255 | v.removeOnAttachStateChangeListener(this); |
| 256 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 257 | |
| 258 | @Override |
| 259 | public void initForMenu(Context context, MenuBuilder menu) { |
| 260 | // Don't need to do anything; we added as a presenter in the constructor. |
| 261 | } |
| 262 | |
| 263 | @Override |
| 264 | public MenuView getMenuView(ViewGroup root) { |
| 265 | throw new UnsupportedOperationException("MenuPopupHelpers manage their own views"); |
| 266 | } |
| 267 | |
| 268 | @Override |
| 269 | public void updateMenuView(boolean cleared) { |
Alan Viverette | 0bce6ab | 2013-06-26 17:46:16 -0700 | [diff] [blame] | 270 | mHasContentWidth = false; |
| 271 | |
| 272 | if (mAdapter != null) { |
| 273 | mAdapter.notifyDataSetChanged(); |
| 274 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | @Override |
| 278 | public void setCallback(Callback cb) { |
| 279 | mPresenterCallback = cb; |
| 280 | } |
| 281 | |
| 282 | @Override |
| 283 | public boolean onSubMenuSelected(SubMenuBuilder subMenu) { |
| 284 | if (subMenu.hasVisibleItems()) { |
Alan Viverette | 560f170 | 2014-05-05 14:40:07 -0700 | [diff] [blame] | 285 | MenuPopupHelper subPopup = new MenuPopupHelper(mContext, subMenu, mAnchorView); |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 286 | subPopup.setCallback(mPresenterCallback); |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 287 | |
| 288 | boolean preserveIconSpacing = false; |
| 289 | final int count = subMenu.size(); |
| 290 | for (int i = 0; i < count; i++) { |
| 291 | MenuItem childItem = subMenu.getItem(i); |
| 292 | if (childItem.isVisible() && childItem.getIcon() != null) { |
| 293 | preserveIconSpacing = true; |
| 294 | break; |
| 295 | } |
| 296 | } |
| 297 | subPopup.setForceShowIcon(preserveIconSpacing); |
| 298 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 299 | if (subPopup.tryShow()) { |
| 300 | if (mPresenterCallback != null) { |
| 301 | mPresenterCallback.onOpenSubMenu(subMenu); |
| 302 | } |
| 303 | return true; |
| 304 | } |
| 305 | } |
| 306 | return false; |
| 307 | } |
| 308 | |
| 309 | @Override |
| 310 | public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| 311 | // Only care about the (sub)menu we're presenting. |
| 312 | if (menu != mMenu) return; |
| 313 | |
| 314 | dismiss(); |
| 315 | if (mPresenterCallback != null) { |
| 316 | mPresenterCallback.onCloseMenu(menu, allMenusAreClosing); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | @Override |
| 321 | public boolean flagActionItems() { |
| 322 | return false; |
| 323 | } |
| 324 | |
Adam Powell | 8d02dea | 2011-05-31 21:35:13 -0700 | [diff] [blame] | 325 | public boolean expandItemActionView(MenuBuilder menu, MenuItemImpl item) { |
| 326 | return false; |
| 327 | } |
| 328 | |
| 329 | public boolean collapseItemActionView(MenuBuilder menu, MenuItemImpl item) { |
| 330 | return false; |
| 331 | } |
| 332 | |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 333 | @Override |
| 334 | public int getId() { |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | @Override |
| 339 | public Parcelable onSaveInstanceState() { |
| 340 | return null; |
| 341 | } |
| 342 | |
| 343 | @Override |
| 344 | public void onRestoreInstanceState(Parcelable state) { |
| 345 | } |
| 346 | |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 347 | private class MenuAdapter extends BaseAdapter { |
| 348 | private MenuBuilder mAdapterMenu; |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 349 | private int mExpandedIndex = -1; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 350 | |
| 351 | public MenuAdapter(MenuBuilder menu) { |
| 352 | mAdapterMenu = menu; |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 353 | findExpandedIndex(); |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | public int getCount() { |
| 357 | ArrayList<MenuItemImpl> items = mOverflowOnly ? |
| 358 | mAdapterMenu.getNonActionItems() : mAdapterMenu.getVisibleItems(); |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 359 | if (mExpandedIndex < 0) { |
| 360 | return items.size(); |
| 361 | } |
| 362 | return items.size() - 1; |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | public MenuItemImpl getItem(int position) { |
| 366 | ArrayList<MenuItemImpl> items = mOverflowOnly ? |
| 367 | mAdapterMenu.getNonActionItems() : mAdapterMenu.getVisibleItems(); |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 368 | if (mExpandedIndex >= 0 && position >= mExpandedIndex) { |
| 369 | position++; |
| 370 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 371 | return items.get(position); |
| 372 | } |
| 373 | |
| 374 | public long getItemId(int position) { |
| 375 | // Since a menu item's ID is optional, we'll use the position as an |
| 376 | // ID for the item in the AdapterView |
| 377 | return position; |
| 378 | } |
| 379 | |
| 380 | public View getView(int position, View convertView, ViewGroup parent) { |
| 381 | if (convertView == null) { |
| 382 | convertView = mInflater.inflate(ITEM_LAYOUT, parent, false); |
| 383 | } |
| 384 | |
| 385 | MenuView.ItemView itemView = (MenuView.ItemView) convertView; |
Adam Powell | 9151103 | 2011-07-13 10:24:06 -0700 | [diff] [blame] | 386 | if (mForceShowIcon) { |
| 387 | ((ListMenuItemView) convertView).setForceShowIcon(true); |
| 388 | } |
Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 389 | itemView.initialize(getItem(position), 0); |
| 390 | return convertView; |
| 391 | } |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 392 | |
| 393 | void findExpandedIndex() { |
| 394 | final MenuItemImpl expandedItem = mMenu.getExpandedItem(); |
| 395 | if (expandedItem != null) { |
| 396 | final ArrayList<MenuItemImpl> items = mMenu.getNonActionItems(); |
| 397 | final int count = items.size(); |
| 398 | for (int i = 0; i < count; i++) { |
| 399 | final MenuItemImpl item = items.get(i); |
| 400 | if (item == expandedItem) { |
| 401 | mExpandedIndex = i; |
| 402 | return; |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | mExpandedIndex = -1; |
| 407 | } |
Adam Powell | 11ed1d6 | 2011-07-11 21:19:59 -0700 | [diff] [blame] | 408 | |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 409 | @Override |
Adam Powell | 76889f3 | 2012-05-08 22:22:52 -0700 | [diff] [blame] | 410 | public void notifyDataSetChanged() { |
| 411 | findExpandedIndex(); |
| 412 | super.notifyDataSetChanged(); |
Adam Powell | 275702c | 2011-09-23 17:34:04 -0700 | [diff] [blame] | 413 | } |
Adam Powell | 11ed1d6 | 2011-07-11 21:19:59 -0700 | [diff] [blame] | 414 | } |
Adam Powell | 4267534 | 2010-07-09 18:02:59 -0700 | [diff] [blame] | 415 | } |