Alan Viverette | 02cd0f9 | 2016-01-13 13:33:17 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 17 | package com.android.internal.view.menu; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.Resources; |
| 21 | import android.os.Parcelable; |
| 22 | import android.view.Gravity; |
| 23 | import android.view.KeyEvent; |
| 24 | import android.view.LayoutInflater; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 25 | import android.view.View; |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 26 | import android.view.View.OnAttachStateChangeListener; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 27 | import android.view.View.OnKeyListener; |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 28 | import android.view.ViewTreeObserver.OnGlobalLayoutListener; |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 29 | import android.view.ViewTreeObserver; |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 30 | import android.widget.FrameLayout; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 31 | import android.widget.ListView; |
| 32 | import android.widget.MenuPopupWindow; |
| 33 | import android.widget.PopupWindow; |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 34 | import android.widget.TextView; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 35 | import android.widget.AdapterView.OnItemClickListener; |
| 36 | import android.widget.PopupWindow.OnDismissListener; |
| 37 | |
| 38 | import com.android.internal.util.Preconditions; |
| 39 | |
| 40 | /** |
| 41 | * A standard menu popup in which when a submenu is opened, it replaces its parent menu in the |
| 42 | * viewport. |
| 43 | */ |
| 44 | final class StandardMenuPopup extends MenuPopup implements OnDismissListener, OnItemClickListener, |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 45 | MenuPresenter, OnKeyListener { |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 46 | |
| 47 | private final Context mContext; |
Alan Viverette | 02cd0f9 | 2016-01-13 13:33:17 -0500 | [diff] [blame] | 48 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 49 | private final MenuBuilder mMenu; |
| 50 | private final MenuAdapter mAdapter; |
| 51 | private final boolean mOverflowOnly; |
| 52 | private final int mPopupMaxWidth; |
| 53 | private final int mPopupStyleAttr; |
| 54 | private final int mPopupStyleRes; |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 55 | // The popup window is final in order to couple its lifecycle to the lifecycle of the |
| 56 | // StandardMenuPopup. |
| 57 | private final MenuPopupWindow mPopup; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 58 | |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 59 | private final OnGlobalLayoutListener mGlobalLayoutListener = new OnGlobalLayoutListener() { |
| 60 | @Override |
| 61 | public void onGlobalLayout() { |
Alan Viverette | 64b7157 | 2016-01-28 15:00:31 -0500 | [diff] [blame] | 62 | // Only move the popup if it's showing and non-modal. We don't want |
| 63 | // to be moving around the only interactive window, since there's a |
| 64 | // good chance the user is interacting with it. |
| 65 | if (isShowing() && !mPopup.isModal()) { |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 66 | final View anchor = mShownAnchorView; |
| 67 | if (anchor == null || !anchor.isShown()) { |
| 68 | dismiss(); |
Alan Viverette | 64b7157 | 2016-01-28 15:00:31 -0500 | [diff] [blame] | 69 | } else { |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 70 | // Recompute window size and position |
| 71 | mPopup.show(); |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | private final OnAttachStateChangeListener mAttachStateChangeListener = |
| 78 | new OnAttachStateChangeListener() { |
| 79 | @Override |
| 80 | public void onViewAttachedToWindow(View v) { |
| 81 | } |
| 82 | |
| 83 | @Override |
| 84 | public void onViewDetachedFromWindow(View v) { |
| 85 | if (mTreeObserver != null) { |
| 86 | if (!mTreeObserver.isAlive()) mTreeObserver = v.getViewTreeObserver(); |
| 87 | mTreeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); |
| 88 | } |
| 89 | v.removeOnAttachStateChangeListener(this); |
| 90 | } |
| 91 | }; |
| 92 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 93 | private PopupWindow.OnDismissListener mOnDismissListener; |
| 94 | |
| 95 | private View mAnchorView; |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 96 | private View mShownAnchorView; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 97 | private Callback mPresenterCallback; |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 98 | private ViewTreeObserver mTreeObserver; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 99 | |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 100 | /** Whether the popup has been dismissed. Once dismissed, it cannot be opened again. */ |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 101 | private boolean mWasDismissed; |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 102 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 103 | /** Whether the cached content width value is valid. */ |
| 104 | private boolean mHasContentWidth; |
| 105 | |
| 106 | /** Cached content width. */ |
| 107 | private int mContentWidth; |
| 108 | |
| 109 | private int mDropDownGravity = Gravity.NO_GRAVITY; |
| 110 | |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 111 | private boolean mShowTitle; |
| 112 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 113 | public StandardMenuPopup(Context context, MenuBuilder menu, View anchorView, int popupStyleAttr, |
| 114 | int popupStyleRes, boolean overflowOnly) { |
| 115 | mContext = Preconditions.checkNotNull(context); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 116 | mMenu = menu; |
| 117 | mOverflowOnly = overflowOnly; |
Alan Viverette | 02cd0f9 | 2016-01-13 13:33:17 -0500 | [diff] [blame] | 118 | final LayoutInflater inflater = LayoutInflater.from(context); |
| 119 | mAdapter = new MenuAdapter(menu, inflater, mOverflowOnly); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 120 | mPopupStyleAttr = popupStyleAttr; |
| 121 | mPopupStyleRes = popupStyleRes; |
| 122 | |
| 123 | final Resources res = context.getResources(); |
| 124 | mPopupMaxWidth = Math.max(res.getDisplayMetrics().widthPixels / 2, |
| 125 | res.getDimensionPixelSize(com.android.internal.R.dimen.config_prefDialogWidth)); |
| 126 | |
| 127 | mAnchorView = anchorView; |
| 128 | |
| 129 | mPopup = new MenuPopupWindow(mContext, null, mPopupStyleAttr, mPopupStyleRes); |
| 130 | |
| 131 | // Present the menu using our context, not the menu builder's context. |
| 132 | menu.addMenuPresenter(this, context); |
| 133 | } |
| 134 | |
| 135 | @Override |
| 136 | public void setForceShowIcon(boolean forceShow) { |
| 137 | mAdapter.setForceShowIcon(forceShow); |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void setGravity(int gravity) { |
| 142 | mDropDownGravity = gravity; |
| 143 | } |
| 144 | |
| 145 | private boolean tryShow() { |
| 146 | if (isShowing()) { |
| 147 | return true; |
| 148 | } |
| 149 | |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 150 | if (mWasDismissed || mAnchorView == null) { |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 151 | return false; |
| 152 | } |
| 153 | |
| 154 | mShownAnchorView = mAnchorView; |
| 155 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 156 | mPopup.setOnDismissListener(this); |
| 157 | mPopup.setOnItemClickListener(this); |
| 158 | mPopup.setAdapter(mAdapter); |
| 159 | mPopup.setModal(true); |
| 160 | |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 161 | final View anchor = mShownAnchorView; |
| 162 | final boolean addGlobalListener = mTreeObserver == null; |
| 163 | mTreeObserver = anchor.getViewTreeObserver(); // Refresh to latest |
| 164 | if (addGlobalListener) { |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 165 | mTreeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 166 | } |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 167 | anchor.addOnAttachStateChangeListener(mAttachStateChangeListener); |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 168 | mPopup.setAnchorView(anchor); |
| 169 | mPopup.setDropDownGravity(mDropDownGravity); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 170 | |
| 171 | if (!mHasContentWidth) { |
Alan Viverette | 02cd0f9 | 2016-01-13 13:33:17 -0500 | [diff] [blame] | 172 | mContentWidth = measureIndividualMenuWidth(mAdapter, null, mContext, mPopupMaxWidth); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 173 | mHasContentWidth = true; |
| 174 | } |
| 175 | |
| 176 | mPopup.setContentWidth(mContentWidth); |
| 177 | mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); |
Alan Viverette | 9109857 | 2016-01-19 14:07:31 -0500 | [diff] [blame] | 178 | mPopup.setEpicenterBounds(getEpicenterBounds()); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 179 | mPopup.show(); |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 180 | |
| 181 | ListView listView = mPopup.getListView(); |
| 182 | listView.setOnKeyListener(this); |
| 183 | |
| 184 | if (mShowTitle && mMenu.getHeaderTitle() != null) { |
| 185 | FrameLayout titleItemView = |
| 186 | (FrameLayout) LayoutInflater.from(mContext).inflate( |
| 187 | com.android.internal.R.layout.popup_menu_header_item_layout, |
| 188 | listView, |
| 189 | false); |
| 190 | TextView titleView = (TextView) titleItemView.findViewById( |
| 191 | com.android.internal.R.id.title); |
Alan Viverette | 02cd0f9 | 2016-01-13 13:33:17 -0500 | [diff] [blame] | 192 | if (titleView != null) { |
| 193 | titleView.setText(mMenu.getHeaderTitle()); |
| 194 | } |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 195 | titleItemView.setEnabled(false); |
| 196 | listView.addHeaderView(titleItemView, null, false); |
| 197 | |
| 198 | // Update to show the title. |
| 199 | mPopup.show(); |
| 200 | } |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 201 | return true; |
| 202 | } |
| 203 | |
| 204 | @Override |
| 205 | public void show() { |
| 206 | if (!tryShow()) { |
Oren Blasberg | 9022c71 | 2016-04-05 14:59:36 -0700 | [diff] [blame] | 207 | throw new IllegalStateException("StandardMenuPopup cannot be used without an anchor"); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 208 | } |
| 209 | } |
| 210 | |
| 211 | @Override |
| 212 | public void dismiss() { |
| 213 | if (isShowing()) { |
| 214 | mPopup.dismiss(); |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | @Override |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 219 | public void addMenu(MenuBuilder menu) { |
| 220 | // No-op: standard implementation has only one menu which is set in the constructor. |
| 221 | } |
| 222 | |
| 223 | @Override |
| 224 | public boolean isShowing() { |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 225 | return !mWasDismissed && mPopup.isShowing(); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | @Override |
| 229 | public void onDismiss() { |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 230 | mWasDismissed = true; |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 231 | mMenu.close(); |
| 232 | |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 233 | if (mTreeObserver != null) { |
| 234 | if (!mTreeObserver.isAlive()) mTreeObserver = mShownAnchorView.getViewTreeObserver(); |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 235 | mTreeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); |
Oren Blasberg | 9916282 | 2015-09-10 14:37:26 -0700 | [diff] [blame] | 236 | mTreeObserver = null; |
| 237 | } |
Oren Blasberg | 23087be | 2015-09-08 14:59:12 -0700 | [diff] [blame] | 238 | mShownAnchorView.removeOnAttachStateChangeListener(mAttachStateChangeListener); |
Oren Blasberg | 4348688 | 2016-03-28 12:13:49 -0700 | [diff] [blame] | 239 | |
| 240 | if (mOnDismissListener != null) { |
| 241 | mOnDismissListener.onDismiss(); |
| 242 | } |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | @Override |
| 246 | public void updateMenuView(boolean cleared) { |
| 247 | mHasContentWidth = false; |
| 248 | |
| 249 | if (mAdapter != null) { |
| 250 | mAdapter.notifyDataSetChanged(); |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public void setCallback(Callback cb) { |
| 256 | mPresenterCallback = cb; |
| 257 | } |
| 258 | |
| 259 | @Override |
| 260 | public boolean onSubMenuSelected(SubMenuBuilder subMenu) { |
| 261 | if (subMenu.hasVisibleItems()) { |
Alan Viverette | 77fb85e | 2015-12-14 11:42:44 -0500 | [diff] [blame] | 262 | final MenuPopupHelper subPopup = new MenuPopupHelper(mContext, subMenu, |
| 263 | mShownAnchorView, mOverflowOnly, mPopupStyleAttr, mPopupStyleRes); |
Alan Viverette | 021627e | 2015-11-25 14:22:00 -0500 | [diff] [blame] | 264 | subPopup.setPresenterCallback(mPresenterCallback); |
Oren Blasberg | ddf6b81 | 2016-04-05 15:52:36 -0700 | [diff] [blame] | 265 | subPopup.setForceShowIcon(MenuPopup.shouldPreserveIconSpacing(subMenu)); |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 266 | |
Oren Blasberg | 4348688 | 2016-03-28 12:13:49 -0700 | [diff] [blame] | 267 | // Pass responsibility for handling onDismiss to the submenu. |
| 268 | subPopup.setOnDismissListener(mOnDismissListener); |
| 269 | mOnDismissListener = null; |
| 270 | |
| 271 | // Close this menu popup to make room for the submenu popup. |
Oren Blasberg | 9022c71 | 2016-04-05 14:59:36 -0700 | [diff] [blame] | 272 | mMenu.close(false /* closeAllMenus */); |
Oren Blasberg | 4348688 | 2016-03-28 12:13:49 -0700 | [diff] [blame] | 273 | |
Alan Viverette | 77fb85e | 2015-12-14 11:42:44 -0500 | [diff] [blame] | 274 | // Show the new sub-menu popup at the same location as this popup. |
Vladislav Kaznacheev | d959c9d | 2018-01-23 14:03:36 -0800 | [diff] [blame] | 275 | int horizontalOffset = mPopup.getHorizontalOffset(); |
Alan Viverette | d7b2599 | 2016-04-19 15:21:54 -0400 | [diff] [blame] | 276 | final int verticalOffset = mPopup.getVerticalOffset(); |
Vladislav Kaznacheev | d959c9d | 2018-01-23 14:03:36 -0800 | [diff] [blame] | 277 | |
| 278 | // As xOffset of parent menu popup is subtracted with Anchor width for Gravity.RIGHT, |
| 279 | // So, again to display sub-menu popup in same xOffset, add the Anchor width. |
| 280 | final int hgrav = Gravity.getAbsoluteGravity(mDropDownGravity, |
| 281 | mAnchorView.getLayoutDirection()) & Gravity.HORIZONTAL_GRAVITY_MASK; |
| 282 | if (hgrav == Gravity.RIGHT) { |
| 283 | horizontalOffset += mAnchorView.getWidth(); |
| 284 | } |
| 285 | |
Alan Viverette | d7b2599 | 2016-04-19 15:21:54 -0400 | [diff] [blame] | 286 | if (subPopup.tryShow(horizontalOffset, verticalOffset)) { |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 287 | if (mPresenterCallback != null) { |
| 288 | mPresenterCallback.onOpenSubMenu(subMenu); |
| 289 | } |
| 290 | return true; |
| 291 | } |
| 292 | } |
| 293 | return false; |
| 294 | } |
| 295 | |
| 296 | @Override |
| 297 | public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| 298 | // Only care about the (sub)menu we're presenting. |
| 299 | if (menu != mMenu) return; |
| 300 | |
| 301 | dismiss(); |
| 302 | if (mPresenterCallback != null) { |
| 303 | mPresenterCallback.onCloseMenu(menu, allMenusAreClosing); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | @Override |
| 308 | public boolean flagActionItems() { |
| 309 | return false; |
| 310 | } |
| 311 | |
Oren Blasberg | b23976e | 2015-09-01 14:55:42 -0700 | [diff] [blame] | 312 | @Override |
| 313 | public Parcelable onSaveInstanceState() { |
| 314 | return null; |
| 315 | } |
| 316 | |
| 317 | @Override |
| 318 | public void onRestoreInstanceState(Parcelable state) { |
| 319 | } |
| 320 | |
| 321 | @Override |
| 322 | public void setAnchorView(View anchor) { |
| 323 | mAnchorView = anchor; |
| 324 | } |
| 325 | |
| 326 | @Override |
| 327 | public boolean onKey(View v, int keyCode, KeyEvent event) { |
| 328 | if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_MENU) { |
| 329 | dismiss(); |
| 330 | return true; |
| 331 | } |
| 332 | return false; |
| 333 | } |
| 334 | |
| 335 | @Override |
| 336 | public void setOnDismissListener(OnDismissListener listener) { |
| 337 | mOnDismissListener = listener; |
| 338 | } |
| 339 | |
| 340 | @Override |
| 341 | public ListView getListView() { |
| 342 | return mPopup.getListView(); |
| 343 | } |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 344 | |
| 345 | |
| 346 | @Override |
| 347 | public void setHorizontalOffset(int x) { |
Alan Viverette | d7b2599 | 2016-04-19 15:21:54 -0400 | [diff] [blame] | 348 | mPopup.setHorizontalOffset(x); |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | @Override |
| 352 | public void setVerticalOffset(int y) { |
Alan Viverette | d7b2599 | 2016-04-19 15:21:54 -0400 | [diff] [blame] | 353 | mPopup.setVerticalOffset(y); |
Oren Blasberg | ed39126 | 2015-09-01 12:12:51 -0700 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | @Override |
| 357 | public void setShowTitle(boolean showTitle) { |
| 358 | mShowTitle = showTitle; |
| 359 | } |
| 360 | } |