| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.widget; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.compat.annotation.UnsupportedAppUsage; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.graphics.drawable.Drawable; |
| import android.os.Build; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| import android.view.ActionProvider; |
| import android.view.Gravity; |
| import android.view.MenuItem; |
| import android.view.SoundEffectConstants; |
| import android.view.View; |
| import android.view.View.MeasureSpec; |
| import android.view.ViewGroup; |
| import android.view.ViewTreeObserver; |
| import android.view.accessibility.AccessibilityNodeInfo; |
| |
| import com.android.internal.view.ActionBarPolicy; |
| import com.android.internal.view.menu.ActionMenuItemView; |
| import com.android.internal.view.menu.BaseMenuPresenter; |
| import com.android.internal.view.menu.MenuBuilder; |
| import com.android.internal.view.menu.MenuItemImpl; |
| import com.android.internal.view.menu.MenuPopupHelper; |
| import com.android.internal.view.menu.MenuView; |
| import com.android.internal.view.menu.ShowableListMenu; |
| import com.android.internal.view.menu.SubMenuBuilder; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * MenuPresenter for building action menus as seen in the action bar and action modes. |
| * |
| * @hide |
| */ |
| public class ActionMenuPresenter extends BaseMenuPresenter |
| implements ActionProvider.SubUiVisibilityListener { |
| private static final int ITEM_ANIMATION_DURATION = 150; |
| private static final boolean ACTIONBAR_ANIMATIONS_ENABLED = false; |
| |
| private OverflowMenuButton mOverflowButton; |
| private Drawable mPendingOverflowIcon; |
| private boolean mPendingOverflowIconSet; |
| private boolean mReserveOverflow; |
| private boolean mReserveOverflowSet; |
| private int mWidthLimit; |
| private int mActionItemWidthLimit; |
| private int mMaxItems; |
| private boolean mMaxItemsSet; |
| private boolean mStrictWidthLimit; |
| private boolean mWidthLimitSet; |
| private boolean mExpandedActionViewsExclusive; |
| |
| private int mMinCellSize; |
| |
| // Group IDs that have been added as actions - used temporarily, allocated here for reuse. |
| private final SparseBooleanArray mActionButtonGroups = new SparseBooleanArray(); |
| |
| private OverflowPopup mOverflowPopup; |
| private ActionButtonSubmenu mActionButtonPopup; |
| |
| private OpenOverflowRunnable mPostedOpenRunnable; |
| private ActionMenuPopupCallback mPopupCallback; |
| |
| final PopupPresenterCallback mPopupPresenterCallback = new PopupPresenterCallback(); |
| int mOpenSubMenuId; |
| |
| // These collections are used to store pre- and post-layout information for menu items, |
| // which is used to determine appropriate animations to run for changed items. |
| private SparseArray<MenuItemLayoutInfo> mPreLayoutItems = new SparseArray<>(); |
| private SparseArray<MenuItemLayoutInfo> mPostLayoutItems = new SparseArray<>(); |
| |
| // The list of currently running animations on menu items. |
| private List<ItemAnimationInfo> mRunningItemAnimations = new ArrayList<>(); |
| private ViewTreeObserver.OnPreDrawListener mItemAnimationPreDrawListener = |
| new ViewTreeObserver.OnPreDrawListener() { |
| @Override |
| public boolean onPreDraw() { |
| computeMenuItemAnimationInfo(false); |
| ((View) mMenuView).getViewTreeObserver().removeOnPreDrawListener(this); |
| runItemAnimations(); |
| return true; |
| } |
| }; |
| private View.OnAttachStateChangeListener mAttachStateChangeListener = |
| new View.OnAttachStateChangeListener() { |
| @Override |
| public void onViewAttachedToWindow(View v) { |
| } |
| |
| @Override |
| public void onViewDetachedFromWindow(View v) { |
| ((View) mMenuView).getViewTreeObserver().removeOnPreDrawListener( |
| mItemAnimationPreDrawListener); |
| mPreLayoutItems.clear(); |
| mPostLayoutItems.clear(); |
| } |
| }; |
| |
| |
| public ActionMenuPresenter(Context context) { |
| super(context, com.android.internal.R.layout.action_menu_layout, |
| com.android.internal.R.layout.action_menu_item_layout); |
| } |
| |
| @Override |
| public void initForMenu(@NonNull Context context, @Nullable MenuBuilder menu) { |
| super.initForMenu(context, menu); |
| |
| final Resources res = context.getResources(); |
| |
| final ActionBarPolicy abp = ActionBarPolicy.get(context); |
| if (!mReserveOverflowSet) { |
| mReserveOverflow = abp.showsOverflowMenuButton(); |
| } |
| |
| if (!mWidthLimitSet) { |
| mWidthLimit = abp.getEmbeddedMenuWidthLimit(); |
| } |
| |
| // Measure for initial configuration |
| if (!mMaxItemsSet) { |
| mMaxItems = abp.getMaxActionButtons(); |
| } |
| |
| int width = mWidthLimit; |
| if (mReserveOverflow) { |
| if (mOverflowButton == null) { |
| mOverflowButton = new OverflowMenuButton(mSystemContext); |
| if (mPendingOverflowIconSet) { |
| mOverflowButton.setImageDrawable(mPendingOverflowIcon); |
| mPendingOverflowIcon = null; |
| mPendingOverflowIconSet = false; |
| } |
| final int spec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); |
| mOverflowButton.measure(spec, spec); |
| } |
| width -= mOverflowButton.getMeasuredWidth(); |
| } else { |
| mOverflowButton = null; |
| } |
| |
| mActionItemWidthLimit = width; |
| |
| mMinCellSize = (int) (ActionMenuView.MIN_CELL_SIZE * res.getDisplayMetrics().density); |
| } |
| |
| public void onConfigurationChanged(Configuration newConfig) { |
| if (!mMaxItemsSet) { |
| mMaxItems = ActionBarPolicy.get(mContext).getMaxActionButtons(); |
| } |
| if (mMenu != null) { |
| mMenu.onItemsChanged(true); |
| } |
| } |
| |
| public void setWidthLimit(int width, boolean strict) { |
| mWidthLimit = width; |
| mStrictWidthLimit = strict; |
| mWidthLimitSet = true; |
| } |
| |
| public void setReserveOverflow(boolean reserveOverflow) { |
| mReserveOverflow = reserveOverflow; |
| mReserveOverflowSet = true; |
| } |
| |
| public void setItemLimit(int itemCount) { |
| mMaxItems = itemCount; |
| mMaxItemsSet = true; |
| } |
| |
| public void setExpandedActionViewsExclusive(boolean isExclusive) { |
| mExpandedActionViewsExclusive = isExclusive; |
| } |
| |
| public void setOverflowIcon(Drawable icon) { |
| if (mOverflowButton != null) { |
| mOverflowButton.setImageDrawable(icon); |
| } else { |
| mPendingOverflowIconSet = true; |
| mPendingOverflowIcon = icon; |
| } |
| } |
| |
| public Drawable getOverflowIcon() { |
| if (mOverflowButton != null) { |
| return mOverflowButton.getDrawable(); |
| } else if (mPendingOverflowIconSet) { |
| return mPendingOverflowIcon; |
| } |
| return null; |
| } |
| |
| @Override |
| public MenuView getMenuView(ViewGroup root) { |
| MenuView oldMenuView = mMenuView; |
| MenuView result = super.getMenuView(root); |
| if (oldMenuView != result) { |
| ((ActionMenuView) result).setPresenter(this); |
| if (oldMenuView != null) { |
| ((View) oldMenuView).removeOnAttachStateChangeListener(mAttachStateChangeListener); |
| } |
| ((View) result).addOnAttachStateChangeListener(mAttachStateChangeListener); |
| } |
| return result; |
| } |
| |
| @Override |
| public View getItemView(final MenuItemImpl item, View convertView, ViewGroup parent) { |
| View actionView = item.getActionView(); |
| if (actionView == null || item.hasCollapsibleActionView()) { |
| actionView = super.getItemView(item, convertView, parent); |
| } |
| actionView.setVisibility(item.isActionViewExpanded() ? View.GONE : View.VISIBLE); |
| |
| final ActionMenuView menuParent = (ActionMenuView) parent; |
| final ViewGroup.LayoutParams lp = actionView.getLayoutParams(); |
| if (!menuParent.checkLayoutParams(lp)) { |
| actionView.setLayoutParams(menuParent.generateLayoutParams(lp)); |
| } |
| return actionView; |
| } |
| |
| @Override |
| public void bindItemView(MenuItemImpl item, MenuView.ItemView itemView) { |
| itemView.initialize(item, 0); |
| |
| final ActionMenuView menuView = (ActionMenuView) mMenuView; |
| final ActionMenuItemView actionItemView = (ActionMenuItemView) itemView; |
| actionItemView.setItemInvoker(menuView); |
| |
| if (mPopupCallback == null) { |
| mPopupCallback = new ActionMenuPopupCallback(); |
| } |
| actionItemView.setPopupCallback(mPopupCallback); |
| } |
| |
| @Override |
| public boolean shouldIncludeItem(int childIndex, MenuItemImpl item) { |
| return item.isActionButton(); |
| } |
| |
| /** |
| * Store layout information about current items in the menu. This is stored for |
| * both pre- and post-layout phases and compared in runItemAnimations() to determine |
| * the animations that need to be run on any item changes. |
| * |
| * @param preLayout Whether this is being called in the pre-layout phase. This is passed |
| * into the MenuItemLayoutInfo structure to store the appropriate position values. |
| */ |
| private void computeMenuItemAnimationInfo(boolean preLayout) { |
| final ViewGroup menuView = (ViewGroup) mMenuView; |
| final int count = menuView.getChildCount(); |
| SparseArray items = preLayout ? mPreLayoutItems : mPostLayoutItems; |
| for (int i = 0; i < count; ++i) { |
| View child = menuView.getChildAt(i); |
| final int id = child.getId(); |
| if (id > 0 && child.getWidth() != 0 && child.getHeight() != 0) { |
| MenuItemLayoutInfo info = new MenuItemLayoutInfo(child, preLayout); |
| items.put(id, info); |
| } |
| } |
| } |
| |
| /** |
| * This method is called once both the pre-layout and post-layout steps have |
| * happened. It figures out which views are new (didn't exist prior to layout), |
| * gone (existed pre-layout, but are now gone), or changed (exist in both, |
| * but in a different location) and runs appropriate animations on those views. |
| * Items are tracked by ids, since the underlying views that represent items |
| * pre- and post-layout may be different. |
| */ |
| private void runItemAnimations() { |
| for (int i = 0; i < mPreLayoutItems.size(); ++i) { |
| int id = mPreLayoutItems.keyAt(i); |
| final MenuItemLayoutInfo menuItemLayoutInfoPre = mPreLayoutItems.get(id); |
| final int postLayoutIndex = mPostLayoutItems.indexOfKey(id); |
| if (postLayoutIndex >= 0) { |
| // item exists pre and post: see if it's changed |
| final MenuItemLayoutInfo menuItemLayoutInfoPost = |
| mPostLayoutItems.valueAt(postLayoutIndex); |
| PropertyValuesHolder pvhX = null; |
| PropertyValuesHolder pvhY = null; |
| if (menuItemLayoutInfoPre.left != menuItemLayoutInfoPost.left) { |
| pvhX = PropertyValuesHolder.ofFloat(View.TRANSLATION_X, |
| (menuItemLayoutInfoPre.left - menuItemLayoutInfoPost.left), 0); |
| } |
| if (menuItemLayoutInfoPre.top != menuItemLayoutInfoPost.top) { |
| pvhY = PropertyValuesHolder.ofFloat(View.TRANSLATION_Y, |
| menuItemLayoutInfoPre.top - menuItemLayoutInfoPost.top, 0); |
| } |
| if (pvhX != null || pvhY != null) { |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j); |
| if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.MOVE) { |
| oldInfo.animator.cancel(); |
| } |
| } |
| ObjectAnimator anim; |
| if (pvhX != null) { |
| if (pvhY != null) { |
| anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view, |
| pvhX, pvhY); |
| } else { |
| anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view, pvhX); |
| } |
| } else { |
| anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view, pvhY); |
| } |
| anim.setDuration(ITEM_ANIMATION_DURATION); |
| anim.start(); |
| ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfoPost, anim, |
| ItemAnimationInfo.MOVE); |
| mRunningItemAnimations.add(info); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| if (mRunningItemAnimations.get(j).animator == animation) { |
| mRunningItemAnimations.remove(j); |
| break; |
| } |
| } |
| } |
| }); |
| } |
| mPostLayoutItems.remove(id); |
| } else { |
| // item used to be there, is now gone |
| float oldAlpha = 1; |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j); |
| if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.FADE_IN) { |
| oldAlpha = oldInfo.menuItemLayoutInfo.view.getAlpha(); |
| oldInfo.animator.cancel(); |
| } |
| } |
| ObjectAnimator anim = ObjectAnimator.ofFloat(menuItemLayoutInfoPre.view, View.ALPHA, |
| oldAlpha, 0); |
| // Re-using the view from pre-layout assumes no view recycling |
| ((ViewGroup) mMenuView).getOverlay().add(menuItemLayoutInfoPre.view); |
| anim.setDuration(ITEM_ANIMATION_DURATION); |
| anim.start(); |
| ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfoPre, anim, ItemAnimationInfo.FADE_OUT); |
| mRunningItemAnimations.add(info); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| if (mRunningItemAnimations.get(j).animator == animation) { |
| mRunningItemAnimations.remove(j); |
| break; |
| } |
| } |
| ((ViewGroup) mMenuView).getOverlay().remove(menuItemLayoutInfoPre.view); |
| } |
| }); |
| } |
| } |
| for (int i = 0; i < mPostLayoutItems.size(); ++i) { |
| int id = mPostLayoutItems.keyAt(i); |
| final int postLayoutIndex = mPostLayoutItems.indexOfKey(id); |
| if (postLayoutIndex >= 0) { |
| // item is new |
| final MenuItemLayoutInfo menuItemLayoutInfo = |
| mPostLayoutItems.valueAt(postLayoutIndex); |
| float oldAlpha = 0; |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j); |
| if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.FADE_OUT) { |
| oldAlpha = oldInfo.menuItemLayoutInfo.view.getAlpha(); |
| oldInfo.animator.cancel(); |
| } |
| } |
| ObjectAnimator anim = ObjectAnimator.ofFloat(menuItemLayoutInfo.view, View.ALPHA, |
| oldAlpha, 1); |
| anim.start(); |
| anim.setDuration(ITEM_ANIMATION_DURATION); |
| ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfo, anim, ItemAnimationInfo.FADE_IN); |
| mRunningItemAnimations.add(info); |
| anim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| for (int j = 0; j < mRunningItemAnimations.size(); ++j) { |
| if (mRunningItemAnimations.get(j).animator == animation) { |
| mRunningItemAnimations.remove(j); |
| break; |
| } |
| } |
| } |
| }); |
| } |
| } |
| mPreLayoutItems.clear(); |
| mPostLayoutItems.clear(); |
| } |
| |
| /** |
| * Gets position/existence information on menu items before and after layout, |
| * which is then fed into runItemAnimations() |
| */ |
| private void setupItemAnimations() { |
| computeMenuItemAnimationInfo(true); |
| ((View) mMenuView).getViewTreeObserver(). |
| addOnPreDrawListener(mItemAnimationPreDrawListener); |
| } |
| |
| @Override |
| public void updateMenuView(boolean cleared) { |
| final ViewGroup menuViewParent = (ViewGroup) ((View) mMenuView).getParent(); |
| if (menuViewParent != null && ACTIONBAR_ANIMATIONS_ENABLED) { |
| setupItemAnimations(); |
| } |
| super.updateMenuView(cleared); |
| |
| ((View) mMenuView).requestLayout(); |
| |
| if (mMenu != null) { |
| final ArrayList<MenuItemImpl> actionItems = mMenu.getActionItems(); |
| final int count = actionItems.size(); |
| for (int i = 0; i < count; i++) { |
| final ActionProvider provider = actionItems.get(i).getActionProvider(); |
| if (provider != null) { |
| provider.setSubUiVisibilityListener(this); |
| } |
| } |
| } |
| |
| final ArrayList<MenuItemImpl> nonActionItems = mMenu != null ? |
| mMenu.getNonActionItems() : null; |
| |
| boolean hasOverflow = false; |
| if (mReserveOverflow && nonActionItems != null) { |
| final int count = nonActionItems.size(); |
| if (count == 1) { |
| hasOverflow = !nonActionItems.get(0).isActionViewExpanded(); |
| } else { |
| hasOverflow = count > 0; |
| } |
| } |
| |
| if (hasOverflow) { |
| if (mOverflowButton == null) { |
| mOverflowButton = new OverflowMenuButton(mSystemContext); |
| } |
| ViewGroup parent = (ViewGroup) mOverflowButton.getParent(); |
| if (parent != mMenuView) { |
| if (parent != null) { |
| parent.removeView(mOverflowButton); |
| } |
| ActionMenuView menuView = (ActionMenuView) mMenuView; |
| menuView.addView(mOverflowButton, menuView.generateOverflowButtonLayoutParams()); |
| } |
| } else if (mOverflowButton != null && mOverflowButton.getParent() == mMenuView) { |
| ((ViewGroup) mMenuView).removeView(mOverflowButton); |
| } |
| |
| ((ActionMenuView) mMenuView).setOverflowReserved(mReserveOverflow); |
| } |
| |
| @Override |
| public boolean filterLeftoverView(ViewGroup parent, int childIndex) { |
| if (parent.getChildAt(childIndex) == mOverflowButton) return false; |
| return super.filterLeftoverView(parent, childIndex); |
| } |
| |
| public boolean onSubMenuSelected(SubMenuBuilder subMenu) { |
| if (!subMenu.hasVisibleItems()) return false; |
| |
| SubMenuBuilder topSubMenu = subMenu; |
| while (topSubMenu.getParentMenu() != mMenu) { |
| topSubMenu = (SubMenuBuilder) topSubMenu.getParentMenu(); |
| } |
| View anchor = findViewForItem(topSubMenu.getItem()); |
| if (anchor == null) { |
| // This means the submenu was opened from an overflow menu item, indicating the |
| // MenuPopupHelper will handle opening the submenu via its MenuPopup. Return false to |
| // ensure that the MenuPopup acts as presenter for the submenu, and acts on its |
| // responsibility to display the new submenu. |
| return false; |
| } |
| |
| mOpenSubMenuId = subMenu.getItem().getItemId(); |
| |
| boolean preserveIconSpacing = false; |
| final int count = subMenu.size(); |
| for (int i = 0; i < count; i++) { |
| MenuItem childItem = subMenu.getItem(i); |
| if (childItem.isVisible() && childItem.getIcon() != null) { |
| preserveIconSpacing = true; |
| break; |
| } |
| } |
| |
| mActionButtonPopup = new ActionButtonSubmenu(mContext, subMenu, anchor); |
| mActionButtonPopup.setForceShowIcon(preserveIconSpacing); |
| mActionButtonPopup.show(); |
| |
| super.onSubMenuSelected(subMenu); |
| return true; |
| } |
| |
| private View findViewForItem(MenuItem item) { |
| final ViewGroup parent = (ViewGroup) mMenuView; |
| if (parent == null) return null; |
| |
| final int count = parent.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| final View child = parent.getChildAt(i); |
| if (child instanceof MenuView.ItemView && |
| ((MenuView.ItemView) child).getItemData() == item) { |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Display the overflow menu if one is present. |
| * @return true if the overflow menu was shown, false otherwise. |
| */ |
| public boolean showOverflowMenu() { |
| if (mReserveOverflow && !isOverflowMenuShowing() && mMenu != null && mMenuView != null && |
| mPostedOpenRunnable == null && !mMenu.getNonActionItems().isEmpty()) { |
| OverflowPopup popup = new OverflowPopup(mContext, mMenu, mOverflowButton, true); |
| mPostedOpenRunnable = new OpenOverflowRunnable(popup); |
| // Post this for later; we might still need a layout for the anchor to be right. |
| ((View) mMenuView).post(mPostedOpenRunnable); |
| |
| // ActionMenuPresenter uses null as a callback argument here |
| // to indicate overflow is opening. |
| super.onSubMenuSelected(null); |
| |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Hide the overflow menu if it is currently showing. |
| * |
| * @return true if the overflow menu was hidden, false otherwise. |
| */ |
| public boolean hideOverflowMenu() { |
| if (mPostedOpenRunnable != null && mMenuView != null) { |
| ((View) mMenuView).removeCallbacks(mPostedOpenRunnable); |
| mPostedOpenRunnable = null; |
| return true; |
| } |
| |
| MenuPopupHelper popup = mOverflowPopup; |
| if (popup != null) { |
| popup.dismiss(); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismiss all popup menus - overflow and submenus. |
| * @return true if popups were dismissed, false otherwise. (This can be because none were open.) |
| */ |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) |
| public boolean dismissPopupMenus() { |
| boolean result = hideOverflowMenu(); |
| result |= hideSubMenus(); |
| return result; |
| } |
| |
| /** |
| * Dismiss all submenu popups. |
| * |
| * @return true if popups were dismissed, false otherwise. (This can be because none were open.) |
| */ |
| public boolean hideSubMenus() { |
| if (mActionButtonPopup != null) { |
| mActionButtonPopup.dismiss(); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * @return true if the overflow menu is currently showing |
| */ |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) |
| public boolean isOverflowMenuShowing() { |
| return mOverflowPopup != null && mOverflowPopup.isShowing(); |
| } |
| |
| public boolean isOverflowMenuShowPending() { |
| return mPostedOpenRunnable != null || isOverflowMenuShowing(); |
| } |
| |
| /** |
| * @return true if space has been reserved in the action menu for an overflow item. |
| */ |
| public boolean isOverflowReserved() { |
| return mReserveOverflow; |
| } |
| |
| public boolean flagActionItems() { |
| final ArrayList<MenuItemImpl> visibleItems; |
| final int itemsSize; |
| if (mMenu != null) { |
| visibleItems = mMenu.getVisibleItems(); |
| itemsSize = visibleItems.size(); |
| } else { |
| visibleItems = null; |
| itemsSize = 0; |
| } |
| |
| int maxActions = mMaxItems; |
| int widthLimit = mActionItemWidthLimit; |
| final int querySpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); |
| final ViewGroup parent = (ViewGroup) mMenuView; |
| |
| int requiredItems = 0; |
| int requestedItems = 0; |
| int firstActionWidth = 0; |
| boolean hasOverflow = false; |
| for (int i = 0; i < itemsSize; i++) { |
| MenuItemImpl item = visibleItems.get(i); |
| if (item.requiresActionButton()) { |
| requiredItems++; |
| } else if (item.requestsActionButton()) { |
| requestedItems++; |
| } else { |
| hasOverflow = true; |
| } |
| if (mExpandedActionViewsExclusive && item.isActionViewExpanded()) { |
| // Overflow everything if we have an expanded action view and we're |
| // space constrained. |
| maxActions = 0; |
| } |
| } |
| |
| // Reserve a spot for the overflow item if needed. |
| if (mReserveOverflow && |
| (hasOverflow || requiredItems + requestedItems > maxActions)) { |
| maxActions--; |
| } |
| maxActions -= requiredItems; |
| |
| final SparseBooleanArray seenGroups = mActionButtonGroups; |
| seenGroups.clear(); |
| |
| int cellSize = 0; |
| int cellsRemaining = 0; |
| if (mStrictWidthLimit) { |
| cellsRemaining = widthLimit / mMinCellSize; |
| final int cellSizeRemaining = widthLimit % mMinCellSize; |
| cellSize = mMinCellSize + cellSizeRemaining / cellsRemaining; |
| } |
| |
| // Flag as many more requested items as will fit. |
| for (int i = 0; i < itemsSize; i++) { |
| MenuItemImpl item = visibleItems.get(i); |
| |
| if (item.requiresActionButton()) { |
| View v = getItemView(item, null, parent); |
| if (mStrictWidthLimit) { |
| cellsRemaining -= ActionMenuView.measureChildForCells(v, |
| cellSize, cellsRemaining, querySpec, 0); |
| } else { |
| v.measure(querySpec, querySpec); |
| } |
| final int measuredWidth = v.getMeasuredWidth(); |
| widthLimit -= measuredWidth; |
| if (firstActionWidth == 0) { |
| firstActionWidth = measuredWidth; |
| } |
| final int groupId = item.getGroupId(); |
| if (groupId != 0) { |
| seenGroups.put(groupId, true); |
| } |
| item.setIsActionButton(true); |
| } else if (item.requestsActionButton()) { |
| // Items in a group with other items that already have an action slot |
| // can break the max actions rule, but not the width limit. |
| final int groupId = item.getGroupId(); |
| final boolean inGroup = seenGroups.get(groupId); |
| boolean isAction = (maxActions > 0 || inGroup) && widthLimit > 0 && |
| (!mStrictWidthLimit || cellsRemaining > 0); |
| |
| if (isAction) { |
| View v = getItemView(item, null, parent); |
| if (mStrictWidthLimit) { |
| final int cells = ActionMenuView.measureChildForCells(v, |
| cellSize, cellsRemaining, querySpec, 0); |
| cellsRemaining -= cells; |
| if (cells == 0) { |
| isAction = false; |
| } |
| } else { |
| v.measure(querySpec, querySpec); |
| } |
| final int measuredWidth = v.getMeasuredWidth(); |
| widthLimit -= measuredWidth; |
| if (firstActionWidth == 0) { |
| firstActionWidth = measuredWidth; |
| } |
| |
| if (mStrictWidthLimit) { |
| isAction &= widthLimit >= 0; |
| } else { |
| // Did this push the entire first item past the limit? |
| isAction &= widthLimit + firstActionWidth > 0; |
| } |
| } |
| |
| if (isAction && groupId != 0) { |
| seenGroups.put(groupId, true); |
| } else if (inGroup) { |
| // We broke the width limit. Demote the whole group, they all overflow now. |
| seenGroups.put(groupId, false); |
| for (int j = 0; j < i; j++) { |
| MenuItemImpl areYouMyGroupie = visibleItems.get(j); |
| if (areYouMyGroupie.getGroupId() == groupId) { |
| // Give back the action slot |
| if (areYouMyGroupie.isActionButton()) maxActions++; |
| areYouMyGroupie.setIsActionButton(false); |
| } |
| } |
| } |
| |
| if (isAction) maxActions--; |
| |
| item.setIsActionButton(isAction); |
| } else { |
| // Neither requires nor requests an action button. |
| item.setIsActionButton(false); |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| dismissPopupMenus(); |
| super.onCloseMenu(menu, allMenusAreClosing); |
| } |
| |
| @Override |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) |
| public Parcelable onSaveInstanceState() { |
| SavedState state = new SavedState(); |
| state.openSubMenuId = mOpenSubMenuId; |
| return state; |
| } |
| |
| @Override |
| @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553) |
| public void onRestoreInstanceState(Parcelable state) { |
| SavedState saved = (SavedState) state; |
| if (saved.openSubMenuId > 0) { |
| MenuItem item = mMenu.findItem(saved.openSubMenuId); |
| if (item != null) { |
| SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu(); |
| onSubMenuSelected(subMenu); |
| } |
| } |
| } |
| |
| @Override |
| public void onSubUiVisibilityChanged(boolean isVisible) { |
| if (isVisible) { |
| // Not a submenu, but treat it like one. |
| super.onSubMenuSelected(null); |
| } else if (mMenu != null) { |
| mMenu.close(false /* closeAllMenus */); |
| } |
| } |
| |
| public void setMenuView(ActionMenuView menuView) { |
| if (menuView != mMenuView) { |
| if (mMenuView != null) { |
| ((View) mMenuView).removeOnAttachStateChangeListener(mAttachStateChangeListener); |
| } |
| mMenuView = menuView; |
| menuView.initialize(mMenu); |
| menuView.addOnAttachStateChangeListener(mAttachStateChangeListener); |
| } |
| } |
| |
| private static class SavedState implements Parcelable { |
| public int openSubMenuId; |
| |
| SavedState() { |
| } |
| |
| SavedState(Parcel in) { |
| openSubMenuId = in.readInt(); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeInt(openSubMenuId); |
| } |
| |
| public static final @android.annotation.NonNull Parcelable.Creator<SavedState> CREATOR |
| = new Parcelable.Creator<SavedState>() { |
| public SavedState createFromParcel(Parcel in) { |
| return new SavedState(in); |
| } |
| |
| public SavedState[] newArray(int size) { |
| return new SavedState[size]; |
| } |
| }; |
| } |
| |
| private class OverflowMenuButton extends ImageButton implements ActionMenuView.ActionMenuChildView { |
| public OverflowMenuButton(Context context) { |
| super(context, null, com.android.internal.R.attr.actionOverflowButtonStyle); |
| |
| setClickable(true); |
| setFocusable(true); |
| setVisibility(VISIBLE); |
| setEnabled(true); |
| |
| setOnTouchListener(new ForwardingListener(this) { |
| @Override |
| public ShowableListMenu getPopup() { |
| if (mOverflowPopup == null) { |
| return null; |
| } |
| |
| return mOverflowPopup.getPopup(); |
| } |
| |
| @Override |
| public boolean onForwardingStarted() { |
| showOverflowMenu(); |
| return true; |
| } |
| |
| @Override |
| public boolean onForwardingStopped() { |
| // Displaying the popup occurs asynchronously, so wait for |
| // the runnable to finish before deciding whether to stop |
| // forwarding. |
| if (mPostedOpenRunnable != null) { |
| return false; |
| } |
| |
| hideOverflowMenu(); |
| return true; |
| } |
| }); |
| } |
| |
| @Override |
| public boolean performClick() { |
| if (super.performClick()) { |
| return true; |
| } |
| |
| playSoundEffect(SoundEffectConstants.CLICK); |
| showOverflowMenu(); |
| return true; |
| } |
| |
| @Override |
| public boolean needsDividerBefore() { |
| return false; |
| } |
| |
| @Override |
| public boolean needsDividerAfter() { |
| return false; |
| } |
| |
| /** @hide */ |
| @Override |
| public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) { |
| super.onInitializeAccessibilityNodeInfoInternal(info); |
| info.setCanOpenPopup(true); |
| } |
| |
| @Override |
| protected boolean setFrame(int l, int t, int r, int b) { |
| final boolean changed = super.setFrame(l, t, r, b); |
| |
| // Set up the hotspot bounds to square and centered on the image. |
| final Drawable d = getDrawable(); |
| final Drawable bg = getBackground(); |
| if (d != null && bg != null) { |
| final int width = getWidth(); |
| final int height = getHeight(); |
| final int halfEdge = Math.max(width, height) / 2; |
| final int offsetX = getPaddingLeft() - getPaddingRight(); |
| final int offsetY = getPaddingTop() - getPaddingBottom(); |
| final int centerX = (width + offsetX) / 2; |
| final int centerY = (height + offsetY) / 2; |
| bg.setHotspotBounds(centerX - halfEdge, centerY - halfEdge, |
| centerX + halfEdge, centerY + halfEdge); |
| } |
| |
| return changed; |
| } |
| } |
| |
| private class OverflowPopup extends MenuPopupHelper { |
| public OverflowPopup(Context context, MenuBuilder menu, View anchorView, |
| boolean overflowOnly) { |
| super(context, menu, anchorView, overflowOnly, |
| com.android.internal.R.attr.actionOverflowMenuStyle); |
| setGravity(Gravity.END); |
| setPresenterCallback(mPopupPresenterCallback); |
| } |
| |
| @Override |
| protected void onDismiss() { |
| if (mMenu != null) { |
| mMenu.close(); |
| } |
| mOverflowPopup = null; |
| |
| super.onDismiss(); |
| } |
| } |
| |
| private class ActionButtonSubmenu extends MenuPopupHelper { |
| public ActionButtonSubmenu(Context context, SubMenuBuilder subMenu, View anchorView) { |
| super(context, subMenu, anchorView, false, |
| com.android.internal.R.attr.actionOverflowMenuStyle); |
| |
| MenuItemImpl item = (MenuItemImpl) subMenu.getItem(); |
| if (!item.isActionButton()) { |
| // Give a reasonable anchor to nested submenus. |
| setAnchorView(mOverflowButton == null ? (View) mMenuView : mOverflowButton); |
| } |
| |
| setPresenterCallback(mPopupPresenterCallback); |
| } |
| |
| @Override |
| protected void onDismiss() { |
| mActionButtonPopup = null; |
| mOpenSubMenuId = 0; |
| |
| super.onDismiss(); |
| } |
| } |
| |
| private class PopupPresenterCallback implements Callback { |
| |
| @Override |
| public boolean onOpenSubMenu(MenuBuilder subMenu) { |
| if (subMenu == null) return false; |
| |
| mOpenSubMenuId = ((SubMenuBuilder) subMenu).getItem().getItemId(); |
| final Callback cb = getCallback(); |
| return cb != null ? cb.onOpenSubMenu(subMenu) : false; |
| } |
| |
| @Override |
| public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| if (menu instanceof SubMenuBuilder) { |
| menu.getRootMenu().close(false /* closeAllMenus */); |
| } |
| final Callback cb = getCallback(); |
| if (cb != null) { |
| cb.onCloseMenu(menu, allMenusAreClosing); |
| } |
| } |
| } |
| |
| private class OpenOverflowRunnable implements Runnable { |
| private OverflowPopup mPopup; |
| |
| public OpenOverflowRunnable(OverflowPopup popup) { |
| mPopup = popup; |
| } |
| |
| public void run() { |
| if (mMenu != null) { |
| mMenu.changeMenuMode(); |
| } |
| final View menuView = (View) mMenuView; |
| if (menuView != null && menuView.getWindowToken() != null && mPopup.tryShow()) { |
| mOverflowPopup = mPopup; |
| } |
| mPostedOpenRunnable = null; |
| } |
| } |
| |
| private class ActionMenuPopupCallback extends ActionMenuItemView.PopupCallback { |
| @Override |
| public ShowableListMenu getPopup() { |
| return mActionButtonPopup != null ? mActionButtonPopup.getPopup() : null; |
| } |
| } |
| |
| /** |
| * This class holds layout information for a menu item. This is used to determine |
| * pre- and post-layout information about menu items, which will then be used to |
| * determine appropriate item animations. |
| */ |
| private static class MenuItemLayoutInfo { |
| View view; |
| int left; |
| int top; |
| |
| MenuItemLayoutInfo(View view, boolean preLayout) { |
| left = view.getLeft(); |
| top = view.getTop(); |
| if (preLayout) { |
| // We track translation for pre-layout because a view might be mid-animation |
| // and we need this information to know where to animate from |
| left += view.getTranslationX(); |
| top += view.getTranslationY(); |
| } |
| this.view = view; |
| } |
| } |
| |
| /** |
| * This class is used to store information about currently-running item animations. |
| * This is used when new animations are scheduled to determine whether any existing |
| * animations need to be canceled, based on whether the running animations overlap |
| * with any new animations. For example, if an item is currently animating from |
| * location A to B and another change dictates that it be animated to C, then the current |
| * A-B animation will be canceled and a new animation to C will be started. |
| */ |
| private static class ItemAnimationInfo { |
| int id; |
| MenuItemLayoutInfo menuItemLayoutInfo; |
| Animator animator; |
| int animType; |
| static final int MOVE = 0; |
| static final int FADE_IN = 1; |
| static final int FADE_OUT = 2; |
| |
| ItemAnimationInfo(int id, MenuItemLayoutInfo info, Animator anim, int animType) { |
| this.id = id; |
| menuItemLayoutInfo = info; |
| animator = anim; |
| this.animType = animType; |
| } |
| } |
| } |
