void
nsMenuFrame::StartBlinking(nsGUIEvent *aEvent, PRBool aFlipChecked)
{
StopBlinking();
CreateMenuCommandEvent(aEvent, aFlipChecked);
if (!ShouldBlink()) {
PassMenuCommandEventToPopupManager();
return;
}
// Blink off.
nsWeakFrame weakFrame(this);
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::menuactive, PR_TRUE);
if (!weakFrame.IsAlive())
return;
if (mMenuParent) {
// Make this menu ignore events from now on.
mMenuParent->LockMenuUntilClosed(PR_TRUE);
}
// Set up a timer to blink back on.
mBlinkTimer = do_CreateInstance("@mozilla.org/timer;1");
mBlinkTimer->InitWithCallback(mTimerMediator, kBlinkDelay, nsITimer::TYPE_ONE_SHOT);
mBlinkState = 1;
}
void
nsPopupSetFrame::OpenPopup(nsPopupFrameList* aEntry, PRBool aActivateFlag)
{
nsWeakFrame weakFrame(this);
nsIFrame* activeChild = aEntry->mPopupFrame;
nsWeakFrame weakPopupFrame(activeChild);
nsRefPtr<nsPresContext> presContext = GetPresContext();
nsCOMPtr<nsIContent> popupContent = aEntry->mPopupContent;
PRBool createHandlerSucceeded = aEntry->mCreateHandlerSucceeded;
nsAutoString popupType = aEntry->mPopupType;
if (aActivateFlag) {
ActivatePopup(aEntry, PR_TRUE);
// register the rollup listeners, etc, but not if we're a tooltip
if (!popupType.EqualsLiteral("tooltip")) {
nsIFrame* activeChild = aEntry->mPopupFrame;
nsIMenuParent* childPopup = nsnull;
if (weakPopupFrame.IsAlive())
CallQueryInterface(activeChild, &childPopup);
// Tooltips don't get keyboard navigation
if (childPopup && !nsMenuFrame::sDismissalListener) {
// First check and make sure this popup wants keyboard navigation
nsAutoString property;
popupContent->GetAttr(kNameSpaceID_None, nsXULAtoms::ignorekeys, property);
if (!property.EqualsLiteral("true"))
childPopup->InstallKeyboardNavigator();
}
UpdateDismissalListener(childPopup);
}
}
else {
if (createHandlerSucceeded && !OnDestroy(popupContent))
return;
// Unregister, but not if we're a tooltip
if (!popupType.EqualsLiteral("tooltip")) {
if (nsMenuFrame::sDismissalListener)
nsMenuFrame::sDismissalListener->Unregister();
}
// Remove any keyboard navigators
nsIMenuParent* childPopup = nsnull;
if (weakPopupFrame.IsAlive())
CallQueryInterface(activeChild, &childPopup);
if (childPopup)
childPopup->RemoveKeyboardNavigator();
if (weakPopupFrame.IsAlive())
ActivatePopup(aEntry, PR_FALSE);
OnDestroyed(presContext, popupContent);
}
if (weakFrame.IsAlive()) {
nsBoxLayoutState state(mPresContext);
MarkDirtyChildren(state); // Mark ourselves dirty.
}
}
void
nsMenuFrame::UpdateMenuType(nsPresContext* aPresContext)
{
static nsIContent::AttrValuesArray strings[] =
{&nsGkAtoms::checkbox, &nsGkAtoms::radio, nsnull};
switch (mContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::type,
strings, eCaseMatters)) {
case 0: mType = eMenuType_Checkbox; break;
case 1:
mType = eMenuType_Radio;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::name, mGroupName);
break;
default:
if (mType != eMenuType_Normal) {
nsWeakFrame weakFrame(this);
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::checked,
PR_TRUE);
ENSURE_TRUE(weakFrame.IsAlive());
}
mType = eMenuType_Normal;
break;
}
UpdateMenuSpecialState(aPresContext);
}
void
nsMenuFrame::PopupClosed(PRBool aDeselectMenu)
{
nsWeakFrame weakFrame(this);
nsContentUtils::AddScriptRunner(
new nsUnsetAttrRunnable(mContent, nsGkAtoms::open));
if (!weakFrame.IsAlive())
return;
// if the popup is for a menu on a menubar, inform menubar to deactivate
if (mMenuParent && mMenuParent->MenuClosed()) {
if (aDeselectMenu) {
SelectMenu(PR_FALSE);
} else {
// We are not deselecting the parent menu while closing the popup, so send
// a DOMMenuItemActive event to the menu to indicate that the menu is
// becoming active again.
nsMenuFrame *current = mMenuParent->GetCurrentMenuItem();
if (current) {
nsCOMPtr<nsIRunnable> event =
new nsMenuActivateEvent(current->GetContent(),
PresContext(), PR_TRUE);
NS_DispatchToCurrentThread(event);
}
}
}
}
NS_IMETHODIMP
nsSplitterFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
nsWeakFrame weakFrame(this);
nsRefPtr<nsSplitterFrameInner> kungFuDeathGrip(mInner);
switch (aEvent->message) {
case NS_MOUSE_MOVE:
mInner->MouseDrag(aPresContext, aEvent);
break;
case NS_MOUSE_BUTTON_UP:
if (aEvent->eventStructType == NS_MOUSE_EVENT &&
static_cast<nsMouseEvent*>(aEvent)->button ==
nsMouseEvent::eLeftButton) {
mInner->MouseUp(aPresContext, aEvent);
}
break;
}
NS_ENSURE_STATE(weakFrame.IsAlive());
return nsBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
PRBool
nsSubDocumentFrame::ReflowFinished()
{
nsCOMPtr<nsIDocShell> docShell;
GetDocShell(getter_AddRefs(docShell));
nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));
// resize the sub document
if (baseWindow) {
PRInt32 x = 0;
PRInt32 y = 0;
nsWeakFrame weakFrame(this);
nsPresContext* presContext = PresContext();
baseWindow->GetPositionAndSize(&x, &y, nsnull, nsnull);
if (!weakFrame.IsAlive()) {
// GetPositionAndSize() killed us
return PR_FALSE;
}
// GetPositionAndSize might have resized us. So now is the time to
// get our size.
mPostedReflowCallback = PR_FALSE;
nsSize innerSize(GetSize());
if (IsInline()) {
nsMargin usedBorderPadding = GetUsedBorderAndPadding();
// Sadly, XUL smacks the frame size without changing the used
// border and padding, so we can't trust those. Subtracting
// them might make things negative.
innerSize.width -= usedBorderPadding.LeftRight();
innerSize.width = PR_MAX(innerSize.width, 0);
innerSize.height -= usedBorderPadding.TopBottom();
innerSize.height = PR_MAX(innerSize.height, 0);
}
PRInt32 cx = presContext->AppUnitsToDevPixels(innerSize.width);
PRInt32 cy = presContext->AppUnitsToDevPixels(innerSize.height);
baseWindow->SetPositionAndSize(x, y, cx, cy, PR_FALSE);
} else {
// Make sure that we can post a reflow callback in the future.
mPostedReflowCallback = PR_FALSE;
}
return PR_FALSE;
}
nsresult
nsMenuFrame::Notify(nsITimer* aTimer)
{
// Our timer has fired.
if (aTimer == mOpenTimer.get()) {
mOpenTimer = nsnull;
if (!IsOpen() && mMenuParent) {
// make sure we didn't open a context menu in the meantime
// (i.e. the user right-clicked while hovering over a submenu).
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
if ((!pm->HasContextMenu(nsnull) || mMenuParent->IsContextMenu()) &&
mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::menuactive,
nsGkAtoms::_true, eCaseMatters)) {
OpenMenu(PR_FALSE);
}
}
}
} else if (aTimer == mBlinkTimer) {
switch (mBlinkState++) {
case 0:
NS_ASSERTION(false, "Blink timer fired while not blinking");
StopBlinking();
break;
case 1:
{
// Turn the highlight back on and wait for a while before closing the menu.
nsWeakFrame weakFrame(this);
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::menuactive,
NS_LITERAL_STRING("true"), PR_TRUE);
if (weakFrame.IsAlive()) {
aTimer->InitWithCallback(mTimerMediator, kBlinkDelay, nsITimer::TYPE_ONE_SHOT);
}
}
break;
default:
if (mMenuParent) {
mMenuParent->LockMenuUntilClosed(PR_FALSE);
}
PassMenuCommandEventToPopupManager();
StopBlinking();
break;
}
}
return NS_OK;
}
void
nsMenuFrame::PopupOpened()
{
nsWeakFrame weakFrame(this);
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open,
NS_LITERAL_STRING("true"), PR_TRUE);
if (!weakFrame.IsAlive())
return;
if (mMenuParent) {
mMenuParent->SetActive(PR_TRUE);
// Make sure the current menu which is being toggled on
// the menubar is highlighted
mMenuParent->SetCurrentMenuItem(this);
}
}
void
nsPopupSetFrame::ActivatePopup(nsPopupFrameList* aEntry, PRBool aActivateFlag)
{
if (aEntry->mPopupContent) {
// When we sync the popup view with the frame, we'll show the popup if |menutobedisplayed|
// is set by setting the |menuactive| attribute. This used to trip css into showing the menu
// but now we do it ourselves.
if (aActivateFlag)
// XXXben hook in |width| and |height| usage here?
aEntry->mPopupContent->SetAttr(kNameSpaceID_None, nsXULAtoms::menutobedisplayed, NS_LITERAL_STRING("true"), PR_TRUE);
else {
nsWeakFrame weakFrame(this);
nsWeakFrame weakActiveChild(aEntry->mPopupFrame);
nsCOMPtr<nsIContent> content = aEntry->mPopupContent;
content->UnsetAttr(kNameSpaceID_None, nsXULAtoms::menuactive, PR_TRUE);
content->UnsetAttr(kNameSpaceID_None, nsXULAtoms::menutobedisplayed, PR_TRUE);
// get rid of the reflows we just created. If we leave them hanging around, we
// can get into trouble if a dialog with a modal event loop comes along and
// processes the reflows before we get to call DestroyChain(). Processing the
// reflow will cause the popup to show itself again. (bug 71219)
nsIDocument* doc = content->GetDocument();
if (doc)
doc->FlushPendingNotifications(Flush_OnlyReflow);
// make sure we hide the popup. We can't assume that we'll have a view
// since we could be cleaning up after someone that didn't correctly
// destroy the popup.
nsIFrame* activeChild = aEntry->mPopupFrame;
if (weakFrame.IsAlive() && weakActiveChild.IsAlive()) {
nsIView* view = weakActiveChild.GetFrame()->GetView();
NS_ASSERTION(view, "View is gone, looks like someone forgot to roll up the popup!");
if (view) {
nsIViewManager* viewManager = view->GetViewManager();
viewManager->SetViewVisibility(view, nsViewVisibility_kHide);
nsRect r(0, 0, 0, 0);
viewManager->ResizeView(view, r);
if (aEntry->mIsOpen) {
aEntry->mIsOpen = PR_FALSE;
FireDOMEventSynch(NS_LITERAL_STRING("DOMMenuInactive"), content);
}
}
}
}
}
}
NS_IMETHODIMP
nsPopupSetFrame::DestroyPopup(nsIFrame* aPopup, PRBool aDestroyEntireChain)
{
if (!mPopupList)
return NS_OK; // No active popups
nsPopupFrameList* entry = mPopupList->GetEntryByFrame(aPopup);
if (entry && entry->mCreateHandlerSucceeded) { // ensure the popup was created before we try to destroy it
nsWeakFrame weakFrame(this);
OpenPopup(entry, PR_FALSE);
nsCOMPtr<nsIContent> popupContent = entry->mPopupContent;
if (weakFrame.IsAlive()) {
if (aDestroyEntireChain && entry->mElementContent && entry->mPopupType.EqualsLiteral("context")) {
// If we are a context menu, and if we are attached to a
// menupopup, then destroying us should also dismiss the parent
// menu popup.
if (entry->mElementContent->Tag() == nsXULAtoms::menupopup) {
nsIFrame* popupFrame = nsnull;
mPresContext->PresShell()->GetPrimaryFrameFor(entry->mElementContent,
&popupFrame);
if (popupFrame) {
nsIMenuParent *menuParent;
if (NS_SUCCEEDED(CallQueryInterface(popupFrame, &menuParent))) {
menuParent->DismissChain();
}
}
}
}
// clear things out for next time
entry->mPopupType.Truncate();
entry->mCreateHandlerSucceeded = PR_FALSE;
entry->mElementContent = nsnull;
entry->mXPos = entry->mYPos = 0;
entry->mLastPref.width = -1;
entry->mLastPref.height = -1;
}
// ungenerate the popup.
popupContent->UnsetAttr(kNameSpaceID_None, nsXULAtoms::menugenerated, PR_TRUE);
}
return NS_OK;
}
bool
ScrollbarActivity::UpdateOpacity(TimeStamp aTime)
{
double progress = (aTime - mFadeBeginTime) / FadeDuration();
double opacity = 1.0 - std::max(0.0, std::min(1.0, progress));
// 'this' may be getting destroyed during SetOpacityOnElement calls.
nsWeakFrame weakFrame((do_QueryFrame(mScrollableFrame)));
SetOpacityOnElement(GetHorizontalScrollbar(), opacity);
if (!weakFrame.IsAlive()) {
return false;
}
SetOpacityOnElement(GetVerticalScrollbar(), opacity);
if (!weakFrame.IsAlive()) {
return false;
}
return true;
}
void
nsTextControlFrame::SetValueChanged(bool aValueChanged)
{
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
NS_ASSERTION(txtCtrl, "Content not a text control element");
if (mUsePlaceholder) {
PRInt32 textLength;
GetTextLength(&textLength);
nsWeakFrame weakFrame(this);
txtCtrl->SetPlaceholderClass(!textLength, true);
if (!weakFrame.IsAlive()) {
return;
}
}
txtCtrl->SetValueChanged(aValueChanged);
}
//----------------------------------------------------------------------
//nsIRollupListener
//----------------------------------------------------------------------
NS_IMETHODIMP
nsComboboxControlFrame::Rollup(PRUint32 aCount,
nsIContent** aLastRolledUp)
{
if (aLastRolledUp)
*aLastRolledUp = nsnull;
if (mDroppedDown) {
nsWeakFrame weakFrame(this);
mListControlFrame->AboutToRollup(); // might destroy us
if (!weakFrame.IsAlive())
return NS_OK;
ShowDropDown(PR_FALSE); // might destroy us
if (!weakFrame.IsAlive())
return NS_OK;
mListControlFrame->CaptureMouseEvents(PR_FALSE);
}
return NS_OK;
}
static void
TransformPoints(nsINode* aTo, const GeometryNode& aFrom,
uint32_t aPointCount, CSSPoint* aPoints,
const ConvertCoordinateOptions& aOptions, ErrorResult& aRv)
{
nsIFrame* fromFrame = GetFirstNonAnonymousFrameForGeometryNode(aFrom);
nsWeakFrame weakFrame(fromFrame);
nsIFrame* toFrame = GetFirstNonAnonymousFrameForNode(aTo);
// The first frame might be destroyed now if the above call lead to an
// EnsureFrameForTextNode call. We need to get the first frame again
// when that happens.
if (fromFrame && !weakFrame.IsAlive()) {
fromFrame = GetFirstNonAnonymousFrameForGeometryNode(aFrom);
}
if (!fromFrame || !toFrame) {
aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
return;
}
if (!CheckFramesInSameTopLevelBrowsingContext(fromFrame, toFrame)) {
aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
return;
}
nsPoint fromOffset = GetBoxRectForFrame(&fromFrame, aOptions.mFromBox).TopLeft();
nsPoint toOffset = GetBoxRectForFrame(&toFrame, aOptions.mToBox).TopLeft();
CSSPoint fromOffsetGfx(nsPresContext::AppUnitsToFloatCSSPixels(fromOffset.x),
nsPresContext::AppUnitsToFloatCSSPixels(fromOffset.y));
for (uint32_t i = 0; i < aPointCount; ++i) {
aPoints[i] += fromOffsetGfx;
}
nsLayoutUtils::TransformResult rv =
nsLayoutUtils::TransformPoints(fromFrame, toFrame, aPointCount, aPoints);
if (rv == nsLayoutUtils::TRANSFORM_SUCCEEDED) {
CSSPoint toOffsetGfx(nsPresContext::AppUnitsToFloatCSSPixels(toOffset.x),
nsPresContext::AppUnitsToFloatCSSPixels(toOffset.y));
for (uint32_t i = 0; i < aPointCount; ++i) {
aPoints[i] -= toOffsetGfx;
}
} else {
PodZero(aPoints, aPointCount);
}
}
void
nsTextControlFrame::SetValueChanged(PRBool aValueChanged)
{
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
NS_ASSERTION(txtCtrl, "Content not a text control element");
if (mUsePlaceholder && !nsContentUtils::IsFocusedContent(mContent)) {
// If the content is focused, we don't care about the changes because
// the placeholder is going to be hidden/shown on blur.
PRInt32 textLength;
GetTextLength(&textLength);
nsWeakFrame weakFrame(this);
txtCtrl->SetPlaceholderClass(!textLength, PR_TRUE);
if (!weakFrame.IsAlive()) {
return;
}
}
txtCtrl->SetValueChanged(aValueChanged);
}
bool
ScrollbarActivity::UpdateOpacity(TimeStamp aTime)
{
// Avoid division by zero if mScrollbarFadeDuration is zero, just jump
// to the end of the fade animation
double progress = mScrollbarFadeDuration
? ((aTime - mFadeBeginTime) / FadeDuration())
: 1.0;
double opacity = 1.0 - std::max(0.0, std::min(1.0, progress));
// 'this' may be getting destroyed during SetOpacityOnElement calls.
nsWeakFrame weakFrame((do_QueryFrame(mScrollableFrame)));
SetOpacityOnElement(GetHorizontalScrollbar(), opacity);
if (!weakFrame.IsAlive()) {
return false;
}
SetOpacityOnElement(GetVerticalScrollbar(), opacity);
if (!weakFrame.IsAlive()) {
return false;
}
return true;
}
bool
ScrollbarActivity::SetIsFading(bool aNewFading)
{
if (mIsFading == aNewFading)
return true;
mIsFading = aNewFading;
if (!mIsFading) {
mFadeBeginTime = TimeStamp();
// 'this' may be getting destroyed during UnsetOpacityOnElement calls.
nsWeakFrame weakFrame((do_QueryFrame(mScrollableFrame)));
UnsetOpacityOnElement(GetHorizontalScrollbar());
if (!weakFrame.IsAlive()) {
return false;
}
UnsetOpacityOnElement(GetVerticalScrollbar());
if (!weakFrame.IsAlive()) {
return false;
}
}
return true;
}
void GetBoxQuads(nsINode* aNode,
const dom::BoxQuadOptions& aOptions,
nsTArray<RefPtr<DOMQuad> >& aResult,
ErrorResult& aRv)
{
nsIFrame* frame = GetFrameForNode(aNode);
if (!frame) {
// No boxes to return
return;
}
nsWeakFrame weakFrame(frame);
nsIDocument* ownerDoc = aNode->OwnerDoc();
nsIFrame* relativeToFrame =
GetFirstNonAnonymousFrameForGeometryNode(aOptions.mRelativeTo, ownerDoc);
// The first frame might be destroyed now if the above call lead to an
// EnsureFrameForTextNode call. We need to get the first frame again
// when that happens and re-check it.
if (!weakFrame.IsAlive()) {
frame = GetFrameForNode(aNode);
if (!frame) {
// No boxes to return
return;
}
}
if (!relativeToFrame) {
aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
return;
}
if (!CheckFramesInSameTopLevelBrowsingContext(frame, relativeToFrame)) {
aRv.Throw(NS_ERROR_DOM_NOT_FOUND_ERR);
return;
}
// GetBoxRectForFrame can modify relativeToFrame so call it first.
nsPoint relativeToTopLeft =
GetBoxRectForFrame(&relativeToFrame, CSSBoxType::Border).TopLeft();
AccumulateQuadCallback callback(ownerDoc, aResult, relativeToFrame,
relativeToTopLeft, aOptions.mBox);
nsLayoutUtils::GetAllInFlowBoxes(frame, &callback);
}
PRBool
nsComboboxControlFrame::ShowList(nsPresContext* aPresContext, PRBool aShowList)
{
nsCOMPtr<nsIPresShell> shell = PresContext()->GetPresShell();
nsWeakFrame weakFrame(this);
ShowPopup(aShowList); // might destroy us
if (!weakFrame.IsAlive()) {
return PR_FALSE;
}
mDroppedDown = aShowList;
if (mDroppedDown) {
// The listcontrol frame will call back to the nsComboboxControlFrame's
// ListWasSelected which will stop the capture.
mListControlFrame->AboutToDropDown();
mListControlFrame->CaptureMouseEvents(PR_TRUE);
}
// XXXbz so why do we need to flush here, exactly?
shell->GetDocument()->FlushPendingNotifications(Flush_Layout);
if (!weakFrame.IsAlive()) {
return PR_FALSE;
}
nsIFrame* listFrame = do_QueryFrame(mListControlFrame);
if (listFrame) {
nsIView* view = listFrame->GetView();
NS_ASSERTION(view, "nsComboboxControlFrame view is null");
if (view) {
nsIWidget* widget = view->GetWidget();
if (widget)
widget->CaptureRollupEvents(this, mDroppedDown, mDroppedDown);
}
}
return weakFrame.IsAlive();
}
//---------------------------------------------------------
// gets the content (an option) by index and then set it as
// being selected or not selected
//---------------------------------------------------------
NS_IMETHODIMP
nsComboboxControlFrame::OnOptionSelected(PRInt32 aIndex, PRBool aSelected)
{
if (mDroppedDown) {
nsISelectControlFrame *selectFrame = do_QueryFrame(mListControlFrame);
if (selectFrame) {
selectFrame->OnOptionSelected(aIndex, aSelected);
}
} else {
if (aSelected) {
nsAutoScriptBlocker blocker;
RedisplayText(aIndex);
} else {
nsWeakFrame weakFrame(this);
RedisplaySelectedText();
if (weakFrame.IsAlive()) {
FireValueChangeEvent(); // Fire after old option is unselected
}
}
}
return NS_OK;
}
void
nsComboboxControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
nsWeakFrame weakFrame(this);
if (aOn) {
nsListControlFrame::ComboboxFocusSet();
mFocused = this;
} else {
mFocused = nsnull;
if (mDroppedDown) {
mListControlFrame->ComboboxFinish(mDisplayedIndex); // might destroy us
if (!weakFrame.IsAlive()) {
return;
}
}
// May delete |this|.
mListControlFrame->FireOnChange();
}
if (!weakFrame.IsAlive()) {
return;
}
// This is needed on a temporary basis. It causes the focus
// rect to be drawn. This is much faster than ReResolvingStyle
// Bug 32920
Invalidate(nsRect(0,0,mRect.width,mRect.height));
// Make sure the content area gets updated for where the dropdown was
// This is only needed for embedding, the focus may go to
// the chrome that is not part of the Gecko system (Bug 83493)
// XXX this is rather inefficient
nsIViewManager* vm = PresContext()->GetPresShell()->GetViewManager();
if (vm) {
vm->UpdateAllViews(NS_VMREFRESH_NO_SYNC);
}
}
//IMPLEMENTING NS_IFORMCONTROLFRAME
void nsTextControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
NS_ASSERTION(txtCtrl, "Content not a text control element");
// Revoke the previous scroll event if one exists
mScrollEvent.Revoke();
if (!aOn) {
if (mUsePlaceholder) {
PRInt32 textLength;
GetTextLength(&textLength);
if (!textLength) {
nsWeakFrame weakFrame(this);
txtCtrl->SetPlaceholderClass(PR_TRUE, PR_TRUE);
if (!weakFrame.IsAlive()) {
return;
}
}
}
return;
}
nsISelectionController* selCon = txtCtrl->GetSelectionController();
if (!selCon)
return;
if (mUsePlaceholder) {
nsWeakFrame weakFrame(this);
txtCtrl->SetPlaceholderClass(PR_FALSE, PR_TRUE);
if (!weakFrame.IsAlive()) {
return;
}
}
InitFocusedValue();
nsCOMPtr<nsISelection> ourSel;
selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(ourSel));
if (!ourSel) return;
nsIPresShell* presShell = PresContext()->GetPresShell();
nsRefPtr<nsCaret> caret = presShell->GetCaret();
if (!caret) return;
// Scroll the current selection into view
nsISelection *caretSelection = caret->GetCaretDOMSelection();
const PRBool isFocusedRightNow = ourSel == caretSelection;
if (!isFocusedRightNow) {
// Don't scroll the current selection if we've been focused using the mouse.
PRUint32 lastFocusMethod = 0;
nsIDocument* doc = GetContent()->GetCurrentDoc();
if (doc) {
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
fm->GetLastFocusMethod(doc->GetWindow(), &lastFocusMethod);
}
}
if (!(lastFocusMethod & nsIFocusManager::FLAG_BYMOUSE)) {
nsRefPtr<ScrollOnFocusEvent> event = new ScrollOnFocusEvent(this);
nsresult rv = NS_DispatchToCurrentThread(event);
if (NS_SUCCEEDED(rv)) {
mScrollEvent = event;
}
}
}
// tell the caret to use our selection
caret->SetCaretDOMSelection(ourSel);
// mutual-exclusion: the selection is either controlled by the
// document or by the text input/area. Clear any selection in the
// document since the focus is now on our independent selection.
nsCOMPtr<nsISelectionController> selcon = do_QueryInterface(presShell);
nsCOMPtr<nsISelection> docSel;
selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(docSel));
if (!docSel) return;
PRBool isCollapsed = PR_FALSE;
docSel->GetIsCollapsed(&isCollapsed);
if (!isCollapsed)
docSel->RemoveAllRanges();
}
nsresult
nsTextControlFrame::EnsureEditorInitialized()
{
// This method initializes our editor, if needed.
// This code used to be called from CreateAnonymousContent(), but
// when the editor set the initial string, it would trigger a
// PresShell listener which called FlushPendingNotifications()
// during frame construction. This was causing other form controls
// to display wrong values. Additionally, calling this every time
// a text frame control is instantiated means that we're effectively
// instantiating the editor for all text fields, even if they
// never get used. So, now this method is being called lazily only
// when we actually need an editor.
// Check if this method has been called already.
// If so, just return early.
if (mUseEditor)
return NS_OK;
NS_TIME_FUNCTION;
nsIDocument* doc = mContent->GetCurrentDoc();
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
nsWeakFrame weakFrame(this);
// Flush out content on our document. Have to do this, because script
// blockers don't prevent the sink flushing out content and notifying in the
// process, which can destroy frames.
doc->FlushPendingNotifications(Flush_ContentAndNotify);
NS_ENSURE_TRUE(weakFrame.IsAlive(), NS_ERROR_FAILURE);
// Make sure that editor init doesn't do things that would kill us off
// (especially off the script blockers it'll create for its DOM mutations).
nsAutoScriptBlocker scriptBlocker;
// Time to mess with our security context... See comments in GetValue()
// for why this is needed.
nsCxPusher pusher;
pusher.PushNull();
// Make sure that we try to focus the content even if the method fails
class EnsureSetFocus {
public:
explicit EnsureSetFocus(nsTextControlFrame* aFrame)
: mFrame(aFrame) {}
~EnsureSetFocus() {
if (nsContentUtils::IsFocusedContent(mFrame->GetContent()))
mFrame->SetFocus(PR_TRUE, PR_FALSE);
}
private:
nsTextControlFrame *mFrame;
};
EnsureSetFocus makeSureSetFocusHappens(this);
#ifdef DEBUG
// Make sure we are not being called again until we're finished.
// If reentrancy happens, just pretend that we don't have an editor.
const EditorInitializerEntryTracker tracker(*this);
NS_ASSERTION(!tracker.EnteredMoreThanOnce(),
"EnsureEditorInitialized has been called while a previous call was in progress");
#endif
// Create an editor for the frame, if one doesn't already exist
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
NS_ASSERTION(txtCtrl, "Content not a text control element");
nsresult rv = txtCtrl->CreateEditor();
NS_ENSURE_SUCCESS(rv, rv);
// Turn on mUseEditor so that subsequent calls will use the
// editor.
mUseEditor = PR_TRUE;
// Set the selection to the beginning of the text field.
SetSelectionEndPoints(0, 0);
return NS_OK;
}
nsresult
nsTextControlFrame::UpdateValueDisplay(PRBool aNotify,
PRBool aBeforeEditorInit,
const nsAString *aValue)
{
if (!IsSingleLineTextControl()) // textareas don't use this
return NS_OK;
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
NS_ASSERTION(txtCtrl, "Content not a text control element");
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
NS_PRECONDITION(rootNode, "Must have a div content\n");
NS_PRECONDITION(!mUseEditor,
"Do not call this after editor has been initialized");
NS_ASSERTION(!mUsePlaceholder || txtCtrl->GetPlaceholderNode(),
"A placeholder div must exist");
nsIContent *textContent = rootNode->GetChildAt(0);
if (!textContent) {
// Set up a textnode with our value
nsCOMPtr<nsIContent> textNode;
nsresult rv = NS_NewTextNode(getter_AddRefs(textNode),
mContent->NodeInfo()->NodeInfoManager());
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(textNode, "Must have textcontent!\n");
rootNode->AppendChildTo(textNode, aNotify);
textContent = textNode;
}
NS_ENSURE_TRUE(textContent, NS_ERROR_UNEXPECTED);
// Get the current value of the textfield from the content.
nsAutoString value;
if (aValue) {
value = *aValue;
} else {
txtCtrl->GetTextEditorValue(value, PR_TRUE);
}
// Update the display of the placeholder value if needed.
// We don't need to do this if we're about to initialize the
// editor, since EnsureEditorInitialized takes care of this.
if (mUsePlaceholder && !aBeforeEditorInit)
{
nsWeakFrame weakFrame(this);
txtCtrl->SetPlaceholderClass(value.IsEmpty(), aNotify);
NS_ENSURE_STATE(weakFrame.IsAlive());
}
if (aBeforeEditorInit && value.IsEmpty()) {
rootNode->RemoveChildAt(0, PR_TRUE);
return NS_OK;
}
if (!value.IsEmpty() && IsPasswordTextControl()) {
nsTextEditRules::FillBufWithPWChars(&value, value.Length());
}
return textContent->SetText(value, aNotify);
}
NS_IMETHODIMP
nsSliderFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
nsIBox* scrollbarBox = GetScrollbar();
nsCOMPtr<nsIContent> scrollbar;
scrollbar = GetContentOfBox(scrollbarBox);
PRBool isHorizontal = IsHorizontal();
if (isDraggingThumb())
{
switch (aEvent->message) {
case NS_MOUSE_MOVE: {
nsPoint eventPoint = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent,
this);
if (mChange) {
// We're in the process of moving the thumb to the mouse,
// but the mouse just moved. Make sure to update our
// destination point.
mDestinationPoint = eventPoint;
StopRepeat();
StartRepeat();
break;
}
nscoord pos = isHorizontal ? eventPoint.x : eventPoint.y;
nsIFrame* thumbFrame = mFrames.FirstChild();
if (!thumbFrame) {
return NS_OK;
}
// take our current position and subtract the start location
pos -= mDragStart;
PRBool isMouseOutsideThumb = PR_FALSE;
if (gSnapMultiplier) {
nsSize thumbSize = thumbFrame->GetSize();
if (isHorizontal) {
// horizontal scrollbar - check if mouse is above or below thumb
// XXXbz what about looking at the .y of the thumb's rect? Is that
// always zero here?
if (eventPoint.y < -gSnapMultiplier * thumbSize.height ||
eventPoint.y > thumbSize.height +
gSnapMultiplier * thumbSize.height)
isMouseOutsideThumb = PR_TRUE;
}
else {
// vertical scrollbar - check if mouse is left or right of thumb
if (eventPoint.x < -gSnapMultiplier * thumbSize.width ||
eventPoint.x > thumbSize.width +
gSnapMultiplier * thumbSize.width)
isMouseOutsideThumb = PR_TRUE;
}
}
if (isMouseOutsideThumb)
{
SetCurrentThumbPosition(scrollbar, mThumbStart, PR_FALSE, PR_TRUE, PR_FALSE);
return NS_OK;
}
// set it
SetCurrentThumbPosition(scrollbar, pos, PR_FALSE, PR_TRUE, PR_TRUE); // with snapping
}
break;
case NS_MOUSE_BUTTON_UP:
if (static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton ||
(static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eMiddleButton &&
gMiddlePref)) {
// stop capturing
AddListener();
DragThumb(PR_FALSE);
if (mChange) {
StopRepeat();
mChange = 0;
}
//we MUST call nsFrame HandleEvent for mouse ups to maintain the selection state and capture state.
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
}
//return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
return NS_OK;
} else if ((aEvent->message == NS_MOUSE_BUTTON_DOWN &&
static_cast<nsMouseEvent*>(aEvent)->button ==
nsMouseEvent::eLeftButton &&
#ifdef XP_MACOSX
// On Mac the option key inverts the scroll-to-here preference.
(static_cast<nsMouseEvent*>(aEvent)->isAlt != GetScrollToClick())) ||
#else
(static_cast<nsMouseEvent*>(aEvent)->isShift != GetScrollToClick())) ||
#endif
(gMiddlePref && aEvent->message == NS_MOUSE_BUTTON_DOWN &&
static_cast<nsMouseEvent*>(aEvent)->button ==
nsMouseEvent::eMiddleButton)) {
nsPoint eventPoint = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent,
this);
nscoord pos = isHorizontal ? eventPoint.x : eventPoint.y;
// adjust so that the middle of the thumb is placed under the click
nsIFrame* thumbFrame = mFrames.FirstChild();
if (!thumbFrame) {
return NS_OK;
}
nsSize thumbSize = thumbFrame->GetSize();
nscoord thumbLength = isHorizontal ? thumbSize.width : thumbSize.height;
// set it
nsWeakFrame weakFrame(this);
// should aMaySnap be PR_TRUE here?
SetCurrentThumbPosition(scrollbar, pos - thumbLength/2, PR_FALSE, PR_FALSE, PR_FALSE);
NS_ENSURE_TRUE(weakFrame.IsAlive(), NS_OK);
DragThumb(PR_TRUE);
if (isHorizontal)
mThumbStart = thumbFrame->GetPosition().x;
else
mThumbStart = thumbFrame->GetPosition().y;
mDragStart = pos - mThumbStart;
}
// XXX hack until handle release is actually called in nsframe.
// if (aEvent->message == NS_MOUSE_EXIT_SYNTH || aEvent->message == NS_MOUSE_RIGHT_BUTTON_UP || aEvent->message == NS_MOUSE_LEFT_BUTTON_UP)
// HandleRelease(aPresContext, aEvent, aEventStatus);
if (aEvent->message == NS_MOUSE_EXIT_SYNTH && mChange)
HandleRelease(aPresContext, aEvent, aEventStatus);
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
NS_IMETHODIMP
nsResizerFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
nsWeakFrame weakFrame(this);
PRBool doDefault = PR_TRUE;
switch (aEvent->message) {
case NS_MOUSE_BUTTON_DOWN: {
if (aEvent->eventStructType == NS_MOUSE_EVENT &&
static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton)
{
nsCOMPtr<nsIBaseWindow> window;
nsIPresShell* presShell = aPresContext->GetPresShell();
nsIContent* contentToResize =
GetContentToResize(presShell, getter_AddRefs(window));
if (contentToResize) {
nsIFrame* frameToResize = contentToResize->GetPrimaryFrame();
if (!frameToResize)
break;
mMouseDownRect = frameToResize->GetScreenRect();
}
else {
// ask the widget implementation to begin a resize drag if it can
Direction direction = GetDirection();
nsresult rv = aEvent->widget->BeginResizeDrag(aEvent,
direction.mHorizontal, direction.mVertical);
if (rv == NS_ERROR_NOT_IMPLEMENTED && window) {
// if there's no native resize support, we need to do window
// resizing ourselves
window->GetPositionAndSize(&mMouseDownRect.x, &mMouseDownRect.y,
&mMouseDownRect.width, &mMouseDownRect.height);
}
else {
// for native drags, don't set the fields below
doDefault = PR_FALSE;
break;
}
}
// we're tracking
mTrackingMouseMove = PR_TRUE;
// remember current mouse coordinates
mMouseDownPoint = aEvent->refPoint + aEvent->widget->WidgetToScreenOffset();
nsIPresShell::SetCapturingContent(GetContent(), CAPTURE_IGNOREALLOWED);
doDefault = PR_FALSE;
}
}
break;
case NS_MOUSE_BUTTON_UP: {
if (mTrackingMouseMove && aEvent->eventStructType == NS_MOUSE_EVENT &&
static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton)
{
// we're done tracking.
mTrackingMouseMove = PR_FALSE;
nsIPresShell::SetCapturingContent(nsnull, 0);
doDefault = PR_FALSE;
}
}
break;
case NS_MOUSE_MOVE: {
if (mTrackingMouseMove)
{
nsCOMPtr<nsIBaseWindow> window;
nsIPresShell* presShell = aPresContext->GetPresShell();
nsCOMPtr<nsIContent> contentToResize =
GetContentToResize(presShell, getter_AddRefs(window));
// check if the returned content really is a menupopup
nsMenuPopupFrame* menuPopupFrame = nsnull;
if (contentToResize) {
nsIFrame* frameToResize = contentToResize->GetPrimaryFrame();
if (frameToResize && frameToResize->GetType() == nsGkAtoms::menuPopupFrame) {
menuPopupFrame = static_cast<nsMenuPopupFrame *>(frameToResize);
}
}
// both MouseMove and direction are negative when pointing to the
// top and left, and positive when pointing to the bottom and right
// retrieve the offset of the mousemove event relative to the mousedown.
// The difference is how much the resize needs to be
nsIntPoint screenPoint(aEvent->refPoint + aEvent->widget->WidgetToScreenOffset());
nsIntPoint mouseMove(screenPoint - mMouseDownPoint);
// what direction should we go in? For content resizing, always use
// 'bottomend'. For other windows, check the dir attribute.
Direction direction;
if (window || menuPopupFrame) {
direction = GetDirection();
if (menuPopupFrame) {
menuPopupFrame->CanAdjustEdges(
(direction.mHorizontal == -1) ? NS_SIDE_LEFT : NS_SIDE_RIGHT,
(direction.mVertical == -1) ? NS_SIDE_TOP : NS_SIDE_BOTTOM, mouseMove);
}
}
else if (contentToResize) {
direction.mHorizontal =
GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL ? -1 : 1;
direction.mVertical = 1;
}
else {
break; // don't do anything if there's nothing to resize
}
nsIntRect rect = mMouseDownRect;
AdjustDimensions(&rect.x, &rect.width, mouseMove.x, direction.mHorizontal);
AdjustDimensions(&rect.y, &rect.height, mouseMove.y, direction.mVertical);
// Don't allow resizing a window or a popup past the edge of the screen,
// so adjust the rectangle to fit within the available screen area.
if (window) {
nsCOMPtr<nsIScreen> screen;
nsCOMPtr<nsIScreenManager> sm(do_GetService("@mozilla.org/gfx/screenmanager;1"));
if (sm) {
nsIntRect frameRect = GetScreenRect();
sm->ScreenForRect(frameRect.x, frameRect.y, 1, 1, getter_AddRefs(screen));
if (screen) {
nsIntRect screenRect;
screen->GetRect(&screenRect.x, &screenRect.y,
&screenRect.width, &screenRect.height);
rect.IntersectRect(rect, screenRect);
}
}
}
else if (menuPopupFrame) {
nsPoint framePoint = menuPopupFrame->GetScreenRectInAppUnits().TopLeft();
nsIFrame* rootFrame = aPresContext->PresShell()->FrameManager()->GetRootFrame();
nsRect rootScreenRect = rootFrame->GetScreenRectInAppUnits();
nsRect screenRect = menuPopupFrame->GetConstraintRect(framePoint, rootScreenRect);
// round using ToInsidePixels as it's better to be a pixel too small
// than be too large. If the popup is too large it could get flipped
// to the opposite side of the anchor point while resizing.
nsIntRect screenRectPixels = screenRect.ToInsidePixels(aPresContext->AppUnitsPerDevPixel());
rect.IntersectRect(rect, screenRectPixels);
}
if (contentToResize) {
nsIntRect cssRect =
rect.ToAppUnits(aPresContext->AppUnitsPerDevPixel())
.ToInsidePixels(nsPresContext::AppUnitsPerCSSPixel());
nsAutoString widthstr, heightstr;
widthstr.AppendInt(cssRect.width);
heightstr.AppendInt(cssRect.height);
// for XUL elements, just set the width and height attributes. For
// other elements, set style.width and style.height
if (contentToResize->IsXUL()) {
nsIntRect oldRect;
nsWeakFrame weakFrame(menuPopupFrame);
if (menuPopupFrame) {
nsCOMPtr<nsIWidget> widget;
menuPopupFrame->GetWidget(getter_AddRefs(widget));
if (widget)
widget->GetScreenBounds(oldRect);
}
contentToResize->SetAttr(kNameSpaceID_None, nsGkAtoms::width, widthstr, PR_TRUE);
contentToResize->SetAttr(kNameSpaceID_None, nsGkAtoms::height, heightstr, PR_TRUE);
if (weakFrame.IsAlive() &&
(oldRect.x != rect.x || oldRect.y != rect.y)) {
// XXX This might go very wrong, since menu popups may add
// offsets (e.g. from margins) to this position, so the popup's
// widget won't end up at the desired position.
menuPopupFrame->MoveTo(rect.x, rect.y, PR_TRUE);
}
}
else {
nsCOMPtr<nsIDOMElementCSSInlineStyle> inlineStyleContent =
do_QueryInterface(contentToResize);
if (inlineStyleContent) {
widthstr += NS_LITERAL_STRING("px");
heightstr += NS_LITERAL_STRING("px");
nsCOMPtr<nsIDOMCSSStyleDeclaration> decl;
inlineStyleContent->GetStyle(getter_AddRefs(decl));
decl->SetProperty(NS_LITERAL_STRING("width"), widthstr, EmptyString());
decl->SetProperty(NS_LITERAL_STRING("height"), heightstr, EmptyString());
}
}
}
else {
window->SetPositionAndSize(rect.x, rect.y, rect.width, rect.height, PR_TRUE); // do the repaint.
}
doDefault = PR_FALSE;
}
}
break;
case NS_MOUSE_CLICK:
if (NS_IS_MOUSE_LEFT_CLICK(aEvent))
{
MouseClicked(aPresContext, aEvent);
}
break;
}
if (!doDefault)
*aEventStatus = nsEventStatus_eConsumeNoDefault;
if (doDefault && weakFrame.IsAlive())
return nsTitleBarFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
else
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus ||
(mMenuParent && mMenuParent->IsMenuLocked())) {
return NS_OK;
}
nsWeakFrame weakFrame(this);
if (*aEventStatus == nsEventStatus_eIgnore)
*aEventStatus = nsEventStatus_eConsumeDoDefault;
PRBool onmenu = IsOnMenu();
if (aEvent->message == NS_KEY_PRESS && !IsDisabled()) {
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
PRUint32 keyCode = keyEvent->keyCode;
#ifdef XP_MACOSX
// On mac, open menulist on either up/down arrow or space (w/o Cmd pressed)
if (!IsOpen() && ((keyEvent->charCode == NS_VK_SPACE && !keyEvent->isMeta) ||
(keyCode == NS_VK_UP || keyCode == NS_VK_DOWN))) {
*aEventStatus = nsEventStatus_eConsumeNoDefault;
OpenMenu(PR_FALSE);
}
#else
// On other platforms, toggle menulist on unmodified F4 or Alt arrow
if ((keyCode == NS_VK_F4 && !keyEvent->isAlt) ||
((keyCode == NS_VK_UP || keyCode == NS_VK_DOWN) && keyEvent->isAlt)) {
*aEventStatus = nsEventStatus_eConsumeNoDefault;
ToggleMenuState();
}
#endif
}
else if (aEvent->eventStructType == NS_MOUSE_EVENT &&
aEvent->message == NS_MOUSE_BUTTON_DOWN &&
static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton &&
!IsDisabled() && IsMenu()) {
// The menu item was selected. Bring up the menu.
// We have children.
// Don't prevent the default action here, since that will also cancel
// potential drag starts.
if (!mMenuParent || mMenuParent->IsMenuBar()) {
ToggleMenuState();
}
else {
if (!IsOpen()) {
OpenMenu(PR_FALSE);
}
}
}
else if (
#ifndef NSCONTEXTMENUISMOUSEUP
(aEvent->eventStructType == NS_MOUSE_EVENT &&
aEvent->message == NS_MOUSE_BUTTON_UP &&
static_cast<nsMouseEvent*>(aEvent)->button ==
nsMouseEvent::eRightButton) &&
#else
aEvent->message == NS_CONTEXTMENU &&
#endif
onmenu && !IsMenu() && !IsDisabled()) {
// if this menu is a context menu it accepts right-clicks...fire away!
// Make sure we cancel default processing of the context menu event so
// that it doesn't bubble and get seen again by the popuplistener and show
// another context menu.
//
// Furthermore (there's always more, isn't there?), on some platforms (win32
// being one of them) we get the context menu event on a mouse up while
// on others we get it on a mouse down. For the ones where we get it on a
// mouse down, we must continue listening for the right button up event to
// dismiss the menu.
if (mMenuParent->IsContextMenu()) {
*aEventStatus = nsEventStatus_eConsumeNoDefault;
Execute(aEvent);
}
}
else if (aEvent->eventStructType == NS_MOUSE_EVENT &&
aEvent->message == NS_MOUSE_BUTTON_UP &&
static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton &&
!IsMenu() && !IsDisabled()) {
// Execute the execute event handler.
*aEventStatus = nsEventStatus_eConsumeNoDefault;
Execute(aEvent);
}
else if (aEvent->message == NS_MOUSE_EXIT_SYNTH) {
// Kill our timer if one is active.
if (mOpenTimer) {
mOpenTimer->Cancel();
mOpenTimer = nsnull;
}
// Deactivate the menu.
if (mMenuParent) {
PRBool onmenubar = mMenuParent->IsMenuBar();
if (!(onmenubar && mMenuParent->IsActive())) {
if (IsMenu() && !onmenubar && IsOpen()) {
// Submenus don't get closed up immediately.
}
else if (this == mMenuParent->GetCurrentMenuItem()) {
mMenuParent->ChangeMenuItem(nsnull, PR_FALSE);
}
}
}
}
else if (aEvent->message == NS_MOUSE_MOVE &&
(onmenu || (mMenuParent && mMenuParent->IsMenuBar()))) {
if (gEatMouseMove) {
gEatMouseMove = PR_FALSE;
return NS_OK;
}
// Let the menu parent know we're the new item.
mMenuParent->ChangeMenuItem(this, PR_FALSE);
NS_ENSURE_TRUE(weakFrame.IsAlive(), NS_OK);
NS_ENSURE_TRUE(mMenuParent, NS_OK);
// we need to check if we really became the current menu
// item or not
nsMenuFrame *realCurrentItem = mMenuParent->GetCurrentMenuItem();
if (realCurrentItem != this) {
// we didn't (presumably because a context menu was active)
return NS_OK;
}
// Hovering over a menu in a popup should open it without a need for a click.
// A timer is used so that it doesn't open if the user moves the mouse quickly
// past the menu. This conditional check ensures that only menus have this
// behaviour
if (!IsDisabled() && IsMenu() && !IsOpen() && !mOpenTimer && !mMenuParent->IsMenuBar()) {
PRInt32 menuDelay = 300; // ms
nsCOMPtr<nsILookAndFeel> lookAndFeel(do_GetService(kLookAndFeelCID));
if (lookAndFeel)
lookAndFeel->GetMetric(nsILookAndFeel::eMetric_SubmenuDelay, menuDelay);
// We're a menu, we're built, we're closed, and no timer has been kicked off.
mOpenTimer = do_CreateInstance("@mozilla.org/timer;1");
mOpenTimer->InitWithCallback(mTimerMediator, menuDelay, nsITimer::TYPE_ONE_SHOT);
}
}
return NS_OK;
}
void
nsMenuFrame::BuildAcceleratorText()
{
nsAutoString accelText;
if ((GetStateBits() & NS_STATE_ACCELTEXT_IS_DERIVED) == 0) {
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::acceltext, accelText);
if (!accelText.IsEmpty())
return;
}
// accelText is definitely empty here.
// Now we're going to compute the accelerator text, so remember that we did.
AddStateBits(NS_STATE_ACCELTEXT_IS_DERIVED);
// If anything below fails, just leave the accelerator text blank.
nsWeakFrame weakFrame(this);
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::acceltext, PR_FALSE);
ENSURE_TRUE(weakFrame.IsAlive());
// See if we have a key node and use that instead.
nsAutoString keyValue;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::key, keyValue);
if (keyValue.IsEmpty())
return;
// Turn the document into a DOM document so we can use getElementById
nsIDocument *document = mContent->GetDocument();
if (!document)
return;
nsIContent *keyElement = document->GetElementById(keyValue);
if (!keyElement) {
#ifdef DEBUG
nsAutoString label;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::label, label);
nsAutoString msg = NS_LITERAL_STRING("Key '") +
keyValue +
NS_LITERAL_STRING("' of menu item '") +
label +
NS_LITERAL_STRING("' could not be found");
NS_WARNING(NS_ConvertUTF16toUTF8(msg).get());
#endif
return;
}
// get the string to display as accelerator text
// check the key element's attributes in this order:
// |keytext|, |key|, |keycode|
nsAutoString accelString;
keyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::keytext, accelString);
if (accelString.IsEmpty()) {
keyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::key, accelString);
if (!accelString.IsEmpty()) {
ToUpperCase(accelString);
} else {
nsAutoString keyCode;
keyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::keycode, keyCode);
ToUpperCase(keyCode);
nsresult rv;
nsCOMPtr<nsIStringBundleService> bundleService =
mozilla::services::GetStringBundleService();
if (bundleService) {
nsCOMPtr<nsIStringBundle> bundle;
rv = bundleService->CreateBundle("chrome://global/locale/keys.properties",
getter_AddRefs(bundle));
if (NS_SUCCEEDED(rv) && bundle) {
nsXPIDLString keyName;
rv = bundle->GetStringFromName(keyCode.get(), getter_Copies(keyName));
if (keyName)
accelString = keyName;
}
}
// nothing usable found, bail
if (accelString.IsEmpty())
return;
}
}
static PRInt32 accelKey = 0;
if (!accelKey)
{
// Compiled-in defaults, in case we can't get LookAndFeel --
// command for mac, control for all other platforms.
#ifdef XP_MACOSX
accelKey = nsIDOMKeyEvent::DOM_VK_META;
#else
accelKey = nsIDOMKeyEvent::DOM_VK_CONTROL;
#endif
// Get the accelerator key value from prefs, overriding the default:
accelKey = nsContentUtils::GetIntPref("ui.key.accelKey", accelKey);
}
nsAutoString modifiers;
keyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::modifiers, modifiers);
char* str = ToNewCString(modifiers);
char* newStr;
char* token = nsCRT::strtok(str, ", \t", &newStr);
while (token) {
if (PL_strcmp(token, "shift") == 0)
accelText += *gShiftText;
else if (PL_strcmp(token, "alt") == 0)
accelText += *gAltText;
else if (PL_strcmp(token, "meta") == 0)
accelText += *gMetaText;
else if (PL_strcmp(token, "control") == 0)
accelText += *gControlText;
else if (PL_strcmp(token, "accel") == 0) {
switch (accelKey)
{
case nsIDOMKeyEvent::DOM_VK_META:
accelText += *gMetaText;
break;
case nsIDOMKeyEvent::DOM_VK_ALT:
accelText += *gAltText;
break;
case nsIDOMKeyEvent::DOM_VK_CONTROL:
default:
accelText += *gControlText;
break;
}
}
accelText += *gModifierSeparator;
token = nsCRT::strtok(newStr, ", \t", &newStr);
}
nsMemory::Free(str);
accelText += accelString;
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::acceltext, accelText, PR_FALSE);
}
PRBool
nsScrollbarButtonFrame::HandleButtonPress(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
// Get the desired action for the scrollbar button.
nsILookAndFeel::nsMetricID tmpAction;
if (aEvent->eventStructType == NS_MOUSE_EVENT &&
aEvent->message == NS_MOUSE_BUTTON_DOWN) {
PRUint16 button = static_cast<nsMouseEvent*>(aEvent)->button;
if (button == nsMouseEvent::eLeftButton) {
tmpAction = nsILookAndFeel::eMetric_ScrollButtonLeftMouseButtonAction;
} else if (button == nsMouseEvent::eMiddleButton) {
tmpAction = nsILookAndFeel::eMetric_ScrollButtonMiddleMouseButtonAction;
} else if (button == nsMouseEvent::eRightButton) {
tmpAction = nsILookAndFeel::eMetric_ScrollButtonRightMouseButtonAction;
} else {
return PR_FALSE;
}
} else {
return PR_FALSE;
}
// Get the button action metric from the pres. shell.
PRInt32 pressedButtonAction;
if (NS_FAILED(aPresContext->LookAndFeel()->GetMetric(tmpAction,
pressedButtonAction)))
return PR_FALSE;
// get the scrollbar control
nsIFrame* scrollbar;
GetParentWithTag(nsGkAtoms::scrollbar, this, scrollbar);
if (scrollbar == nsnull)
return PR_FALSE;
// get the scrollbars content node
nsIContent* content = scrollbar->GetContent();
static nsIContent::AttrValuesArray strings[] = { &nsGkAtoms::increment,
&nsGkAtoms::decrement,
nsnull };
PRInt32 index = mContent->FindAttrValueIn(kNameSpaceID_None,
nsGkAtoms::type,
strings, eCaseMatters);
PRInt32 direction;
if (index == 0)
direction = 1;
else if (index == 1)
direction = -1;
else
return PR_FALSE;
// Whether or not to repeat the click action.
PRBool repeat = PR_TRUE;
// Use smooth scrolling by default.
PRBool smoothScroll = PR_TRUE;
switch (pressedButtonAction) {
case 0:
mIncrement = direction * nsSliderFrame::GetIncrement(content);
break;
case 1:
mIncrement = direction * nsSliderFrame::GetPageIncrement(content);
break;
case 2:
if (direction == -1)
mIncrement = -nsSliderFrame::GetCurrentPosition(content);
else
mIncrement = nsSliderFrame::GetMaxPosition(content) -
nsSliderFrame::GetCurrentPosition(content);
// Don't repeat or use smooth scrolling if scrolling to beginning or end
// of a page.
repeat = smoothScroll = PR_FALSE;
break;
case 3:
default:
// We were told to ignore this click, or someone assigned a non-standard
// value to the button's action.
return PR_FALSE;
}
// set this attribute so we can style it later
nsWeakFrame weakFrame(this);
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::active, NS_LITERAL_STRING("true"), PR_TRUE);
if (weakFrame.IsAlive()) {
DoButtonAction(smoothScroll);
}
if (repeat)
StartRepeat();
return PR_TRUE;
}
NS_IMETHODIMP
nsPopupSetFrame::ShowPopup(nsIContent* aElementContent, nsIContent* aPopupContent,
PRInt32 aXPos, PRInt32 aYPos,
const nsString& aPopupType, const nsString& anAnchorAlignment,
const nsString& aPopupAlignment)
{
NS_ASSERTION(aElementContent != aPopupContent, "self referential popup");
if (!MayOpenPopup(this))
return NS_OK;
nsWeakFrame weakFrame(this);
// First fire the popupshowing event.
if (!OnCreate(aXPos, aYPos, aPopupContent) || !weakFrame.IsAlive())
return NS_OK;
// See if we already have an entry in our list. We must create a new one on a miss.
nsPopupFrameList* entry = nsnull;
if (mPopupList)
entry = mPopupList->GetEntry(aPopupContent);
if (!entry) {
entry = new nsPopupFrameList(aPopupContent, mPopupList);
if (!entry)
return NS_ERROR_OUT_OF_MEMORY;
mPopupList = entry;
}
// Cache the element content we're supposed to sync to
entry->mPopupType = aPopupType;
entry->mElementContent = aElementContent;
entry->mPopupAlign = aPopupAlignment;
entry->mPopupAnchor = anAnchorAlignment;
entry->mXPos = aXPos;
entry->mYPos = aYPos;
// If a frame exists already, go ahead and use it.
mPresContext->PresShell()->GetPrimaryFrameFor(aPopupContent,
&entry->mPopupFrame);
#ifdef DEBUG_PINK
printf("X Pos: %d\n", mXPos);
printf("Y Pos: %d\n", mYPos);
#endif
// Generate the popup.
entry->mCreateHandlerSucceeded = PR_TRUE;
entry->mIsOpen = PR_TRUE;
// This may destroy or change entry->mPopupFrame or remove the entry from
// mPopupList. |this| may also get deleted.
MarkAsGenerated(aPopupContent);
if (!weakFrame.IsAlive()) {
return NS_OK;
}
nsPopupFrameList* newEntry =
mPopupList ? mPopupList->GetEntry(aPopupContent) : nsnull;
if (!newEntry || newEntry != entry) {
NS_WARNING("The popup entry for aPopupContent has changed!");
return NS_OK;
}
// determine if this menu is a context menu and flag it
nsIMenuParent* childPopup = nsnull;
if (entry->mPopupFrame)
CallQueryInterface(entry->mPopupFrame, &childPopup);
if ( childPopup && aPopupType.EqualsLiteral("context") )
childPopup->SetIsContextMenu(PR_TRUE);
// Now open the popup.
OpenPopup(entry, PR_TRUE);
if (!weakFrame.IsAlive()) {
return NS_OK;
}
// Now fire the popupshown event.
OnCreated(aXPos, aYPos, aPopupContent);
return NS_OK;
}
