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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* 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.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
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 mPreLayoutItems = new SparseArray<>();
private SparseArray mPostLayoutItems = new SparseArray<>();
// The list of currently running animations on menu items.
private List 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 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 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.)
*/
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
*/
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 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
public Parcelable onSaveInstanceState() {
SavedState state = new SavedState();
state.openSubMenuId = mOpenSubMenuId;
return state;
}
@Override
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 Parcelable.Creator CREATOR
= new Parcelable.Creator() {
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;
}
}
}