public boolean flagActionItems() {
final ArrayList<MenuItemImpl> visibleItems = mMenu.getVisibleItems();
final int itemsSize = visibleItems.size();
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, mScrapActionButtonView, parent);
if (mScrapActionButtonView == null) {
mScrapActionButtonView = v;
}
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, mScrapActionButtonView, parent);
if (mScrapActionButtonView == null) {
mScrapActionButtonView = v;
}
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);
}
}
return true;
}
