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Mozilla/mozilla/layout/xul/base/src/nsMenuFrame.cpp
jaggernaut%netscape.com 51b17b5bf0 Bug 88413: Remove |GetUnicode()| from nsString (and replace it with |get()|). r=dbaron, rs=scc. 
This removes all call-sites I can currently fix. Tomorrow I'll try to get someone to checkin my changes to security/ and I'll get some help with the Netscape side of things.

nsString::GetUnicode()'s final death-blow will be dealt soon. Please keep this in mind as you add new code :-)


git-svn-id: svn://10.0.0.236/trunk@98363 18797224-902f-48f8-a5cc-f745e15eee43
2001-06-30 11:02:25 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (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.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Original Author: David W. Hyatt (hyatt@netscape.com)
*
* Contributor(s):
* Michael Lowe <michael.lowe@bigfoot.com>
* Pierre Phaneuf <pp@ludusdesign.com>
* Dean Tessman <dean_tessman@hotmail.com>
*/
#include "nsXULAtoms.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLParts.h"
#include "nsMenuFrame.h"
#include "nsBoxFrame.h"
#include "nsIContent.h"
#include "prtypes.h"
#include "nsIAtom.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsIStyleContext.h"
#include "nsIReflowCommand.h"
#include "nsCSSRendering.h"
#include "nsINameSpaceManager.h"
#include "nsLayoutAtoms.h"
#include "nsMenuPopupFrame.h"
#include "nsMenuBarFrame.h"
#include "nsIView.h"
#include "nsIWidget.h"
#include "nsIDocument.h"
#include "nsIDOMNSDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMXULDocument.h"
#include "nsIDOMElement.h"
#include "nsISupportsArray.h"
#include "nsIDOMText.h"
#include "nsILookAndFeel.h"
#include "nsIComponentManager.h"
#include "nsWidgetsCID.h"
#include "nsBoxLayoutState.h"
#include "nsIXBLBinding.h"
#include "nsIScrollableFrame.h"
#include "nsIViewManager.h"
#include "nsIBindingManager.h"
#include "nsIServiceManager.h"
#include "nsIXBLService.h"
#include "nsCSSFrameConstructor.h"
#include "nsIDOMKeyEvent.h"
#include "nsIPref.h"
#include "nsIScrollableView.h"
#include "nsXPIDLString.h"
#include "nsIStringBundle.h"
#define NS_MENU_POPUP_LIST_INDEX 0
#ifdef XP_PC
#define NSCONTEXTMENUISMOUSEUP 1
#endif
static PRInt32 gEatMouseMove = PR_FALSE;
nsMenuDismissalListener* nsMenuFrame::mDismissalListener = nsnull;
static NS_DEFINE_IID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
nsrefcnt nsMenuFrame::gRefCnt = 0;
nsString *nsMenuFrame::gShiftText = nsnull;
nsString *nsMenuFrame::gControlText = nsnull;
nsString *nsMenuFrame::gMetaText = nsnull;
nsString *nsMenuFrame::gAltText = nsnull;
nsString *nsMenuFrame::gModifierSeparator = nsnull;
//
// NS_NewMenuFrame
//
// Wrapper for creating a new menu popup container
//
nsresult
NS_NewMenuFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aFlags)
{
NS_PRECONDITION(aNewFrame, "null OUT ptr");
if (nsnull == aNewFrame) {
return NS_ERROR_NULL_POINTER;
}
nsMenuFrame* it = new (aPresShell) nsMenuFrame (aPresShell);
if ( !it )
return NS_ERROR_OUT_OF_MEMORY;
*aNewFrame = it;
if (aFlags)
it->SetIsMenu(PR_TRUE);
return NS_OK;
}
NS_IMETHODIMP_(nsrefcnt)
nsMenuFrame::AddRef(void)
{
return NS_OK;
}
NS_IMETHODIMP_(nsrefcnt)
nsMenuFrame::Release(void)
{
return NS_OK;
}
//
// QueryInterface
//
NS_INTERFACE_MAP_BEGIN(nsMenuFrame)
NS_INTERFACE_MAP_ENTRY(nsITimerCallback)
NS_INTERFACE_MAP_ENTRY(nsIMenuFrame)
NS_INTERFACE_MAP_ENTRY(nsIScrollableViewProvider)
NS_INTERFACE_MAP_END_INHERITING(nsBoxFrame)
//
// nsMenuFrame cntr
//
nsMenuFrame::nsMenuFrame(nsIPresShell* aShell):nsBoxFrame(aShell),
mIsMenu(PR_FALSE),
mMenuOpen(PR_FALSE),
mCreateHandlerSucceeded(PR_FALSE),
mChecked(PR_FALSE),
mType(eMenuType_Normal),
mMenuParent(nsnull),
mPresContext(nsnull),
mLastPref(-1,-1),
mFrameConstructor(nsnull)
{
} // cntr
NS_IMETHODIMP
nsMenuFrame::SetParent(const nsIFrame* aParent)
{
nsBoxFrame::SetParent(aParent);
nsIFrame* currFrame = (nsIFrame*)aParent;
while (!mMenuParent && currFrame) {
// Set our menu parent.
nsCOMPtr<nsIMenuParent> menuparent(do_QueryInterface(currFrame));
mMenuParent = menuparent.get();
currFrame->GetParent(&currFrame);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::Init(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow)
{
mPresContext = aPresContext; // Don't addref it. Our lifetime is shorter.
nsresult rv = nsBoxFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
nsIFrame* currFrame = aParent;
while (!mMenuParent && currFrame) {
// Set our menu parent.
nsCOMPtr<nsIMenuParent> menuparent(do_QueryInterface(currFrame));
mMenuParent = menuparent.get();
currFrame->GetParent(&currFrame);
}
// Do the type="checkbox" magic
UpdateMenuType(aPresContext);
nsAutoString accelString;
//load the display strings for the keyboard accelerators, but only once
if (gRefCnt++ == 0) {
nsCOMPtr<nsIStringBundleService> bundleService(do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv));
nsCOMPtr<nsIStringBundle> bundle;
if (NS_SUCCEEDED(rv) && bundleService) {
rv = bundleService->CreateBundle( "chrome://global/locale/platformKeys.properties",
getter_AddRefs(bundle));
}
NS_ASSERTION(NS_SUCCEEDED(rv) && bundle, "chrome://global/locale/platformKeys.properties could not be loaded");
nsXPIDLString shiftModifier;
nsXPIDLString metaModifier;
nsXPIDLString altModifier;
nsXPIDLString controlModifier;
nsXPIDLString modifierSeparator;
if (NS_SUCCEEDED(rv) && bundle) {
//macs use symbols for each modifier key, so fetch each from the bundle, which also covers i18n
rv = bundle->GetStringFromName(NS_LITERAL_STRING("VK_SHIFT").get(), getter_Copies(shiftModifier));
rv = bundle->GetStringFromName(NS_LITERAL_STRING("VK_META").get(), getter_Copies(metaModifier));
rv = bundle->GetStringFromName(NS_LITERAL_STRING("VK_ALT").get(), getter_Copies(altModifier));
rv = bundle->GetStringFromName(NS_LITERAL_STRING("VK_CONTROL").get(), getter_Copies(controlModifier));
rv = bundle->GetStringFromName(NS_LITERAL_STRING("MODIFIER_SEPARATOR").get(), getter_Copies(modifierSeparator));
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
//if any of these don't exist, we get an empty string
gShiftText = new nsString(shiftModifier);
gMetaText = new nsString(metaModifier);
gAltText = new nsString(altModifier);
gControlText = new nsString(controlModifier);
gModifierSeparator = new nsString(modifierSeparator);
}
BuildAcceleratorText(accelString);
return rv;
}
nsMenuFrame::~nsMenuFrame()
{
// Clean up shared statics
if (--gRefCnt == 0) {
delete gShiftText;
gShiftText = nsnull;
delete gControlText;
gControlText = nsnull;
delete gMetaText;
gMetaText = nsnull;
delete gAltText;
gAltText = nsnull;
delete gModifierSeparator;
gModifierSeparator = nsnull;
}
}
// The following methods are all overridden to ensure that the menupopup frame
// is placed in the appropriate list.
NS_IMETHODIMP
nsMenuFrame::FirstChild(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame** aFirstChild) const
{
if (nsLayoutAtoms::popupList == aListName) {
*aFirstChild = mPopupFrames.FirstChild();
} else {
nsBoxFrame::FirstChild(aPresContext, aListName, aFirstChild);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
nsresult rv = NS_OK;
if (nsLayoutAtoms::popupList == aListName) {
mPopupFrames.SetFrames(aChildList);
} else {
nsFrameList frames(aChildList);
// We may have a menupopup in here. Get it out, and move it into
// the popup frame list.
nsIFrame* frame = frames.FirstChild();
while (frame) {
nsCOMPtr<nsIMenuParent> menuPar(do_QueryInterface(frame));
if (menuPar) {
// Remove this frame from the list and place it in the other list.
frames.RemoveFrame(frame);
mPopupFrames.AppendFrame(this, frame);
nsIFrame* first = frames.FirstChild();
rv = nsBoxFrame::SetInitialChildList(aPresContext, aListName, first);
return rv;
}
frame->GetNextSibling(&frame);
}
// Didn't find it.
rv = nsBoxFrame::SetInitialChildList(aPresContext, aListName, aChildList);
}
return rv;
}
NS_IMETHODIMP
nsMenuFrame::GetAdditionalChildListName(PRInt32 aIndex,
nsIAtom** aListName) const
{
NS_PRECONDITION(nsnull != aListName, "null OUT parameter pointer");
*aListName = nsnull;
// don't expose the child frame list, it slows things down
#if 0
if (NS_MENU_POPUP_LIST_INDEX == aIndex) {
*aListName = nsLayoutAtoms::popupList;
NS_ADDREF(*aListName);
}
#endif
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::Destroy(nsIPresContext* aPresContext)
{
// Remove our frame mappings
if (mFrameConstructor) {
nsIFrame* curFrame = mPopupFrames.FirstChild();
while (curFrame) {
mFrameConstructor->RemoveMappingsForFrameSubtree(aPresContext, curFrame, nsnull);
curFrame->GetNextSibling(&curFrame);
}
}
// Cleanup frames in popup child list
mPopupFrames.DestroyFrames(aPresContext);
return nsBoxFrame::Destroy(aPresContext);
}
// Called to prevent events from going to anything inside the menu.
NS_IMETHODIMP
nsMenuFrame::GetFrameForPoint(nsIPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame)
{
if ((aWhichLayer != NS_FRAME_PAINT_LAYER_FOREGROUND))
return NS_ERROR_FAILURE;
// if it is not inside us or not in the layer in which we paint, fail
if (!mRect.Contains(aPoint))
return NS_ERROR_FAILURE;
nsresult result = nsBoxFrame::GetFrameForPoint(aPresContext, aPoint, aWhichLayer, aFrame);
if ((result != NS_OK) || (*aFrame == this)) {
return result;
}
nsCOMPtr<nsIContent> content;
(*aFrame)->GetContent(getter_AddRefs(content));
if (content) {
// This allows selective overriding for subcontent.
nsAutoString value;
content->GetAttribute(kNameSpaceID_None, nsXULAtoms::allowevents, value);
if (value.Equals(NS_LITERAL_STRING("true")))
return result;
}
const nsStyleVisibility* vis =
(const nsStyleVisibility*)mStyleContext->GetStyleData(eStyleStruct_Visibility);
if (vis->IsVisible()) {
*aFrame = this; // Capture all events so that we can perform selection
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsMenuFrame::HandleEvent(nsIPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
*aEventStatus = nsEventStatus_eConsumeDoDefault;
if (aEvent->message == NS_KEY_PRESS && !IsDisabled()) {
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
PRUint32 keyCode = keyEvent->keyCode;
if (keyCode == NS_VK_UP || keyCode == NS_VK_DOWN) {
if (!IsOpen())
OpenMenu(PR_TRUE);
}
}
else if (aEvent->message == NS_MOUSE_LEFT_BUTTON_DOWN && !IsDisabled() && IsMenu() ) {
PRBool isMenuBar = PR_FALSE;
if (mMenuParent)
mMenuParent->IsMenuBar(isMenuBar);
// The menu item was selected. Bring up the menu.
// We have children.
if ( isMenuBar || !mMenuParent ) {
ToggleMenuState();
if (!IsOpen() && mMenuParent) {
// We closed up. The menu bar should always be
// deactivated when this happens.
mMenuParent->SetActive(PR_FALSE);
}
}
else
if ( !IsOpen() ) {
// one of our siblings is probably open and even possibly waiting
// for its close timer to fire. Tell our parent to close it down. Not
// doing this before its timer fires will cause the rollup state to
// get very confused.
if ( mMenuParent )
mMenuParent->KillPendingTimers();
// safe to open up
OpenMenu(PR_TRUE);
}
}
else if (
#ifndef NSCONTEXTMENUISMOUSEUP
aEvent->message == NS_MOUSE_RIGHT_BUTTON_UP &&
#else
aEvent->message == NS_CONTEXTMENU &&
#endif
mMenuParent && !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.
PRBool isContextMenu = PR_FALSE;
mMenuParent->GetIsContextMenu(isContextMenu);
if ( isContextMenu ) {
*aEventStatus = nsEventStatus_eConsumeNoDefault;
Execute();
}
}
else if (aEvent->message == NS_MOUSE_LEFT_BUTTON_UP && !IsMenu() && mMenuParent && !IsDisabled()) {
// First, flip "checked" state if we're a checkbox menu, or
// an un-checked radio menu
if (mType == eMenuType_Checkbox ||
(mType == eMenuType_Radio && !mChecked)) {
if (mChecked) {
mContent->UnsetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked,
PR_TRUE);
}
else {
mContent->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked, NS_LITERAL_STRING("true"),
PR_TRUE);
}
/* the AttributeChanged code will update all the internal state */
}
// Execute the execute event handler.
Execute();
}
else if (aEvent->message == NS_MOUSE_EXIT_SYNTH) {
// Kill our timer if one is active.
if (mOpenTimer) {
mOpenTimer->Cancel();
mOpenTimer = nsnull;
}
// Deactivate the menu.
PRBool isActive = PR_FALSE;
PRBool isMenuBar = PR_FALSE;
if (mMenuParent) {
mMenuParent->IsMenuBar(isMenuBar);
PRBool cancel = PR_TRUE;
if (isMenuBar) {
mMenuParent->GetIsActive(isActive);
if (isActive) cancel = PR_FALSE;
}
if (cancel) {
if (IsMenu() && !isMenuBar && mMenuOpen) {
// Submenus don't get closed up immediately.
}
else mMenuParent->SetCurrentMenuItem(nsnull);
}
}
}
else if (aEvent->message == NS_MOUSE_MOVE && mMenuParent) {
if (gEatMouseMove) {
gEatMouseMove = PR_FALSE;
return NS_OK;
}
// we checked for mMenuParent right above
PRBool isMenuBar = PR_FALSE;
mMenuParent->IsMenuBar(isMenuBar);
// Let the menu parent know we're the new item.
mMenuParent->SetCurrentMenuItem(this);
// If we're a menu (and not a menu item),
// kick off the timer.
if (!IsDisabled() && !isMenuBar && IsMenu() && !mMenuOpen && !mOpenTimer) {
PRInt32 menuDelay = 300; // ms
nsCOMPtr<nsILookAndFeel> lookAndFeel(do_CreateInstance(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->Init(this, menuDelay, NS_PRIORITY_HIGHEST);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::ToggleMenuState()
{
if (mMenuOpen) {
OpenMenu(PR_FALSE);
}
else {
OpenMenu(PR_TRUE);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::SelectMenu(PRBool aActivateFlag)
{
if (!mContent) {
return NS_OK;
}
if (aActivateFlag) {
// Highlight the menu.
mContent->SetAttribute(kNameSpaceID_None, nsXULAtoms::menuactive, NS_LITERAL_STRING("true"), PR_TRUE);
}
else {
// Unhighlight the menu.
mContent->UnsetAttribute(kNameSpaceID_None, nsXULAtoms::menuactive, PR_TRUE);
}
return NS_OK;
}
PRBool nsMenuFrame::IsGenerated()
{
nsCOMPtr<nsIContent> child;
GetMenuChildrenElement(getter_AddRefs(child));
// Generate the menu if it hasn't been generated already. This
// takes it from display: none to display: block and gives us
// a menu forevermore.
if (child) {
nsString genVal;
child->GetAttribute(kNameSpaceID_None, nsXULAtoms::menugenerated, genVal);
if (genVal.IsEmpty())
return PR_FALSE;
}
return PR_TRUE;
}
NS_IMETHODIMP
nsMenuFrame::MarkAsGenerated()
{
nsCOMPtr<nsIContent> child;
GetMenuChildrenElement(getter_AddRefs(child));
// Generate the menu if it hasn't been generated already. This
// takes it from display: none to display: block and gives us
// a menu forevermore.
if (child) {
nsAutoString genVal;
child->GetAttribute(kNameSpaceID_None, nsXULAtoms::menugenerated, genVal);
if (genVal.IsEmpty())
child->SetAttribute(kNameSpaceID_None, nsXULAtoms::menugenerated, NS_LITERAL_STRING("true"), PR_TRUE);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::ActivateMenu(PRBool aActivateFlag)
{
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
if (!menuPopup)
return NS_OK;
if (aActivateFlag) {
nsRect rect;
menuPopup->GetRect(rect);
nsIView* view = nsnull;
menuPopup->GetView(mPresContext, &view);
nsCOMPtr<nsIViewManager> viewManager;
view->GetViewManager(*getter_AddRefs(viewManager));
viewManager->ResizeView(view, rect.width, rect.height);
// make sure the scrolled window is at 0,0
if (mLastPref.height <= rect.height) {
nsIBox* child;
menuPopup->GetChildBox(&child);
nsCOMPtr<nsIScrollableFrame> scrollframe(do_QueryInterface(child));
if (scrollframe) {
scrollframe->ScrollTo(mPresContext, 0, 0);
}
}
viewManager->UpdateView(view, nsRect(0,0, rect.width, rect.height), NS_VMREFRESH_IMMEDIATE);
viewManager->SetViewVisibility(view, nsViewVisibility_kShow);
} else {
nsIView* view = nsnull;
menuPopup->GetView(mPresContext, &view);
nsCOMPtr<nsIViewManager> viewManager;
view->GetViewManager(*getter_AddRefs(viewManager));
viewManager->SetViewVisibility(view, nsViewVisibility_kHide);
viewManager->ResizeView(view, 0, 0);
// set here so hide chain can close the menu as well.
mMenuOpen = PR_FALSE;
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aChild,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aHint)
{
nsAutoString value;
if (aAttribute == nsXULAtoms::open) {
aChild->GetAttribute(kNameSpaceID_None, aAttribute, value);
if (value.Equals(NS_LITERAL_STRING("true")))
OpenMenuInternal(PR_TRUE);
else {
OpenMenuInternal(PR_FALSE);
mCreateHandlerSucceeded = PR_FALSE;
}
} else if (aAttribute == nsHTMLAtoms::checked) {
if (mType != eMenuType_Normal)
UpdateMenuSpecialState(aPresContext);
} else if ( aAttribute == nsHTMLAtoms::type || aAttribute == nsHTMLAtoms::name )
UpdateMenuType(aPresContext);
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::OpenMenu(PRBool aActivateFlag)
{
nsCOMPtr<nsIDOMElement> domElement(do_QueryInterface(mContent));
if (aActivateFlag) {
// Now that the menu is opened, we should have a menupopup child built.
// Mark it as generated, which ensures a frame gets built.
MarkAsGenerated();
domElement->SetAttribute(NS_LITERAL_STRING("open"), NS_LITERAL_STRING("true"));
}
else domElement->RemoveAttribute(NS_LITERAL_STRING("open"));
return NS_OK;
}
void
nsMenuFrame::OpenMenuInternal(PRBool aActivateFlag)
{
gEatMouseMove = PR_TRUE;
if (!mIsMenu)
return;
if (aActivateFlag) {
// Execute the oncreate handler
if (!OnCreate())
return;
mCreateHandlerSucceeded = PR_TRUE;
// Set the focus back to our view's widget.
if (nsMenuFrame::mDismissalListener)
nsMenuFrame::mDismissalListener->EnableListener(PR_FALSE);
// XXX Only have this here because of RDF-generated content.
MarkAsGenerated();
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
mMenuOpen = PR_TRUE;
if (menuPopup) {
// inherit whether or not we're a context menu from the parent
if ( mMenuParent ) {
PRBool parentIsContextMenu = PR_FALSE;
mMenuParent->GetIsContextMenu(parentIsContextMenu);
menuPopup->SetIsContextMenu(parentIsContextMenu);
}
// Install a keyboard navigation listener if we're the root of the menu chain.
PRBool onMenuBar = PR_TRUE;
if (mMenuParent)
mMenuParent->IsMenuBar(onMenuBar);
if (mMenuParent && onMenuBar)
mMenuParent->InstallKeyboardNavigator();
else if (!mMenuParent)
menuPopup->InstallKeyboardNavigator();
// Tell the menu bar we're active.
if (mMenuParent)
mMenuParent->SetActive(PR_TRUE);
nsCOMPtr<nsIContent> menuPopupContent;
menuPopup->GetContent(getter_AddRefs(menuPopupContent));
// Sync up the view.
nsAutoString popupAnchor, popupAlign;
menuPopupContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::popupanchor, popupAnchor);
menuPopupContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::popupalign, popupAlign);
if (onMenuBar) {
if (popupAnchor.IsEmpty())
popupAnchor = NS_LITERAL_STRING("bottomleft");
if (popupAlign.IsEmpty())
popupAlign = NS_LITERAL_STRING("topleft");
}
else {
if (popupAnchor.IsEmpty())
popupAnchor = NS_LITERAL_STRING("topright");
if (popupAlign.IsEmpty())
popupAlign = NS_LITERAL_STRING("topleft");
}
nsBoxLayoutState state(mPresContext);
// if height never set we need to do an initial reflow.
if (mLastPref.height == -1)
{
menuPopup->MarkDirty(state);
nsCOMPtr<nsIPresShell> shell;
mPresContext->GetShell(getter_AddRefs(shell));
shell->FlushPendingNotifications();
}
nsRect curRect;
menuPopup->GetBounds(curRect);
menuPopup->SetBounds(state, nsRect(0,0,mLastPref.width, mLastPref.height));
nsIView* view = nsnull;
menuPopup->GetView(mPresContext, &view);
view->SetVisibility(nsViewVisibility_kHide);
menuPopup->SyncViewWithFrame(mPresContext, popupAnchor, popupAlign, this, -1, -1);
nsRect rect;
menuPopup->GetBounds(rect);
// if the height is different then reflow. It might need scrollbars force a reflow
if (curRect.height != rect.height || mLastPref.height != rect.height)
{
menuPopup->MarkDirty(state);
nsCOMPtr<nsIPresShell> shell;
mPresContext->GetShell(getter_AddRefs(shell));
shell->FlushPendingNotifications();
}
ActivateMenu(PR_TRUE);
nsCOMPtr<nsIMenuParent> childPopup(do_QueryInterface(frame));
UpdateDismissalListener(childPopup);
}
// Set the focus back to our view's widget.
if (nsMenuFrame::mDismissalListener)
nsMenuFrame::mDismissalListener->EnableListener(PR_TRUE);
}
else {
// Close the menu.
// Execute the ondestroy handler, but only if we're actually open
if ( !mCreateHandlerSucceeded || !OnDestroy() )
return;
mMenuOpen = PR_FALSE;
// Set the focus back to our view's widget.
if (nsMenuFrame::mDismissalListener) {
nsMenuFrame::mDismissalListener->EnableListener(PR_FALSE);
nsMenuFrame::mDismissalListener->SetCurrentMenuParent(mMenuParent);
}
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
// Make sure we clear out our own items.
if (menuPopup) {
menuPopup->SetCurrentMenuItem(nsnull);
menuPopup->KillCloseTimer();
PRBool onMenuBar = PR_TRUE;
if (mMenuParent)
mMenuParent->IsMenuBar(onMenuBar);
if (mMenuParent && onMenuBar)
mMenuParent->RemoveKeyboardNavigator();
else if (!mMenuParent)
menuPopup->RemoveKeyboardNavigator();
}
// activate false will also set the mMenuOpen to false.
ActivateMenu(PR_FALSE);
if (nsMenuFrame::mDismissalListener)
nsMenuFrame::mDismissalListener->EnableListener(PR_TRUE);
}
}
void
nsMenuFrame::GetMenuChildrenElement(nsIContent** aResult)
{
nsresult rv;
NS_WITH_SERVICE(nsIXBLService, xblService, "@mozilla.org/xbl;1", &rv);
PRInt32 dummy;
PRInt32 count;
mContent->ChildCount(count);
for (PRInt32 i = 0; i < count; i++) {
nsCOMPtr<nsIContent> child;
mContent->ChildAt(i, *getter_AddRefs(child));
nsCOMPtr<nsIAtom> tag;
xblService->ResolveTag(child, &dummy, getter_AddRefs(tag));
if (tag && tag.get() == nsXULAtoms::menupopup) {
*aResult = child.get();
NS_ADDREF(*aResult);
return;
}
}
}
NS_IMETHODIMP
nsMenuFrame::DoLayout(nsBoxLayoutState& aState)
{
nsRect contentRect;
GetContentRect(contentRect);
// lay us out
nsresult rv = nsBoxFrame::DoLayout(aState);
// layout the popup. First we need to get it.
nsIFrame* popupChild = mPopupFrames.FirstChild();
if (popupChild) {
nsAutoString sizedToPopup;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::sizetopopup, sizedToPopup);
PRBool sizeToPopup = (sizedToPopup.EqualsIgnoreCase("true"));
nsIBox* ibox = nsnull;
nsresult rv2 = popupChild->QueryInterface(NS_GET_IID(nsIBox), (void**)&ibox);
NS_ASSERTION(NS_SUCCEEDED(rv2) && ibox,"popupChild is not box!!");
// then get its preferred size
nsSize prefSize(0,0);
nsSize minSize(0,0);
nsSize maxSize(0,0);
ibox->GetPrefSize(aState, prefSize);
ibox->GetMinSize(aState, minSize);
ibox->GetMaxSize(aState, maxSize);
BoundsCheck(minSize, prefSize, maxSize);
if (sizeToPopup && prefSize.width < contentRect.width)
prefSize.width = contentRect.width;
// if the pref size changed then set bounds to be the pref size
// and sync the view. And set new pref size.
if (mLastPref != prefSize) {
ibox->SetBounds(aState, nsRect(0,0,prefSize.width, prefSize.height));
RePositionPopup(aState);
mLastPref = prefSize;
}
// is the new size too small? Make sure we handle scrollbars correctly
nsIBox* child;
ibox->GetChildBox(&child);
nsRect bounds(0,0,0,0);
ibox->GetBounds(bounds);
nsCOMPtr<nsIScrollableFrame> scrollframe(do_QueryInterface(child));
if (scrollframe) {
nsIScrollableFrame::nsScrollPref pref;
scrollframe->GetScrollPreference(aState.GetPresContext(), &pref);
if (pref == nsIScrollableFrame::Auto)
{
// if our pref height
if (bounds.height < prefSize.height) {
// layout the child
ibox->Layout(aState);
nscoord width;
nscoord height;
scrollframe->GetScrollbarSizes(aState.GetPresContext(), &width, &height);
if (bounds.width < prefSize.width + width)
{
bounds.width += width;
//printf("Width=%d\n",width);
ibox->SetBounds(aState, bounds);
}
}
}
}
// layout the child
ibox->Layout(aState);
// Only size the popups view if open.
if (mMenuOpen) {
nsIView* view = nsnull;
popupChild->GetView(aState.GetPresContext(), &view);
nsCOMPtr<nsIViewManager> viewManager;
view->GetViewManager(*getter_AddRefs(viewManager));
viewManager->ResizeView(view, bounds.width, bounds.height);
}
}
SyncLayout(aState);
return rv;
}
NS_IMETHODIMP
nsMenuFrame::MarkChildrenStyleChange()
{
nsresult rv = nsBoxFrame::MarkChildrenStyleChange();
if (NS_FAILED(rv))
return rv;
nsIFrame* popupChild = mPopupFrames.FirstChild();
if (popupChild) {
nsIBox* ibox = nsnull;
nsresult rv2 = popupChild->QueryInterface(NS_GET_IID(nsIBox), (void**)&ibox);
NS_ASSERTION(NS_SUCCEEDED(rv2) && ibox,"popupChild is not box!!");
return ibox->MarkChildrenStyleChange();
}
return rv;
}
NS_IMETHODIMP
nsMenuFrame::SetDebug(nsBoxLayoutState& aState, PRBool aDebug)
{
// see if our state matches the given debug state
PRBool debugSet = mState & NS_STATE_CURRENTLY_IN_DEBUG;
PRBool debugChanged = (!aDebug && debugSet) || (aDebug && !debugSet);
// if it doesn't then tell each child below us the new debug state
if (debugChanged)
{
nsBoxFrame::SetDebug(aState, aDebug);
SetDebug(aState, mPopupFrames.FirstChild(), aDebug);
}
return NS_OK;
}
nsresult
nsMenuFrame::SetDebug(nsBoxLayoutState& aState, nsIFrame* aList, PRBool aDebug)
{
if (!aList)
return NS_OK;
while (aList) {
nsIBox* ibox = nsnull;
if (NS_SUCCEEDED(aList->QueryInterface(NS_GET_IID(nsIBox), (void**)&ibox)) && ibox) {
ibox->SetDebug(aState, aDebug);
}
aList->GetNextSibling(&aList);
}
return NS_OK;
}
void
nsMenuFrame::RePositionPopup(nsBoxLayoutState& aState)
{
nsIPresContext* presContext = aState.GetPresContext();
// Sync up the view.
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
if (mMenuOpen && menuPopup) {
nsCOMPtr<nsIContent> menuPopupContent;
menuPopup->GetContent(getter_AddRefs(menuPopupContent));
nsAutoString popupAnchor, popupAlign;
menuPopupContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::popupanchor, popupAnchor);
menuPopupContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::popupalign, popupAlign);
PRBool onMenuBar = PR_TRUE;
if (mMenuParent)
mMenuParent->IsMenuBar(onMenuBar);
if (onMenuBar) {
if (popupAnchor.IsEmpty())
popupAnchor = NS_LITERAL_STRING("bottomleft");
if (popupAlign.IsEmpty())
popupAlign = NS_LITERAL_STRING("topleft");
}
else {
if (popupAnchor.IsEmpty())
popupAnchor = NS_LITERAL_STRING("topright");
if (popupAlign.IsEmpty())
popupAlign = NS_LITERAL_STRING("topleft");
}
menuPopup->SyncViewWithFrame(presContext, popupAnchor, popupAlign, this, -1, -1);
}
}
NS_IMETHODIMP
nsMenuFrame::ShortcutNavigation(PRUint32 aLetter, PRBool& aHandledFlag)
{
nsIFrame* frame = mPopupFrames.FirstChild();
if (frame) {
nsMenuPopupFrame* popup = (nsMenuPopupFrame*)frame;
popup->ShortcutNavigation(aLetter, aHandledFlag);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::KeyboardNavigation(PRUint32 aDirection, PRBool& aHandledFlag)
{
nsIFrame* frame = mPopupFrames.FirstChild();
if (frame) {
nsMenuPopupFrame* popup = (nsMenuPopupFrame*)frame;
popup->KeyboardNavigation(aDirection, aHandledFlag);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::Escape(PRBool& aHandledFlag)
{
nsIFrame* frame = mPopupFrames.FirstChild();
if (frame) {
nsMenuPopupFrame* popup = (nsMenuPopupFrame*)frame;
popup->Escape(aHandledFlag);
}
return NS_OK;
}
//
// Enter
//
// Called when the user hits the <Enter>/<Return> keys or presses the
// shortcut key. If this is a leaf item, the item's action will be executed.
// If it is a submenu parent, open the submenu and select the first time.
// In either case, do nothing if the item is disabled.
//
NS_IMETHODIMP
nsMenuFrame::Enter()
{
if ( IsDisabled() )
return NS_OK;
if (!mMenuOpen) {
// The enter key press applies to us.
if (!IsMenu() && mMenuParent)
Execute(); // Execute our event handler
else {
OpenMenu(PR_TRUE);
SelectFirstItem();
}
return NS_OK;
}
nsIFrame* frame = mPopupFrames.FirstChild();
if (frame) {
nsMenuPopupFrame* popup = (nsMenuPopupFrame*)frame;
popup->Enter();
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::SelectFirstItem()
{
nsIFrame* frame = mPopupFrames.FirstChild();
if (frame) {
nsMenuPopupFrame* popup = (nsMenuPopupFrame*)frame;
nsIMenuFrame* result;
popup->GetNextMenuItem(nsnull, &result);
popup->SetCurrentMenuItem(result);
}
return NS_OK;
}
PRBool
nsMenuFrame::IsMenu()
{
return mIsMenu;
}
NS_IMETHODIMP_(void)
nsMenuFrame::Notify(nsITimer* aTimer)
{
// Our timer has fired.
if (aTimer == mOpenTimer.get()) {
if (!mMenuOpen && mMenuParent) {
nsAutoString active;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::menuactive, active);
if (active.Equals(NS_LITERAL_STRING("true"))) {
// We're still the active menu. Make sure all submenus/timers are closed
// before opening this one
mMenuParent->KillPendingTimers();
OpenMenu(PR_TRUE);
}
}
mOpenTimer->Cancel();
mOpenTimer = nsnull;
}
mOpenTimer = nsnull;
}
PRBool
nsMenuFrame::IsDisabled()
{
nsAutoString disabled;
mContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, disabled);
if (disabled.Equals(NS_LITERAL_STRING("true")))
return PR_TRUE;
return PR_FALSE;
}
void
nsMenuFrame::UpdateMenuType(nsIPresContext* aPresContext)
{
nsAutoString value;
mContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::type, value);
if (value.Equals(NS_LITERAL_STRING("checkbox")))
mType = eMenuType_Checkbox;
else if (value.Equals(NS_LITERAL_STRING("radio"))) {
mType = eMenuType_Radio;
nsAutoString valueName;
mContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::name, valueName);
if ( mGroupName != valueName )
mGroupName = valueName;
}
else {
if (mType != eMenuType_Normal)
mContent->UnsetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked,
PR_TRUE);
mType = eMenuType_Normal;
}
UpdateMenuSpecialState(aPresContext);
}
/* update checked-ness for type="checkbox" and type="radio" */
void
nsMenuFrame::UpdateMenuSpecialState(nsIPresContext* aPresContext) {
nsAutoString value;
PRBool newChecked;
mContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked,
value);
newChecked = (value.Equals(NS_LITERAL_STRING("true")));
if (newChecked == mChecked) {
/* checked state didn't change */
if (mType != eMenuType_Radio)
return; // only Radio possibly cares about other kinds of change
mContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::name, value);
if (value == mGroupName)
return; // no interesting change
} else {
mChecked = newChecked;
if (mType != eMenuType_Radio || !mChecked)
/*
* Unchecking something requires no further changes, and only
* menuRadio has to do additional work when checked.
*/
return;
}
/*
* If we get this far, we're type=radio, and:
* - our name= changed, or
* - we went from checked="false" to checked="true"
*/
if (!mChecked)
/*
* If we're not checked, then it must have been a name change, and a name
* change on an unchecked item doesn't require any magic.
*/
return;
/*
* Behavioural note:
* If we're checked and renamed _into_ an existing radio group, we are
* made the new checked item, and we unselect the previous one.
*
* The only other reasonable behaviour would be to check for another selected
* item in that group. If found, unselect ourselves, otherwise we're the
* selected item. That, however, would be a lot more work, and I don't think
* it's better at all.
*/
/* walk siblings, looking for the other checked item with the same name */
nsIFrame *parent, *sib;
nsIMenuFrame *sibMenu;
nsMenuType sibType;
nsAutoString sibGroup;
PRBool sibChecked;
nsresult rv = GetParent(&parent);
NS_ASSERTION(NS_SUCCEEDED(rv), "couldn't get parent of radio menu frame\n");
if (NS_FAILED(rv)) return;
// get the first sibling in this menu popup. This frame may be it, and if we're
// being called at creation time, this frame isn't yet in the parent's child list.
// All I'm saying is that this may fail, but it's most likely alright.
rv = parent->FirstChild(aPresContext, NULL, &sib);
if ( NS_FAILED(rv) || !sib )
return;
// XXX - egcs 1.1.2 & gcc 2.95.x -Oy builds, where y > 1,
// are known to break if we declare nsCOMPtrs inside this loop.
// Moving the declaration out of the loop works around this problem.
// http://bugzilla.mozilla.org/show_bug.cgi?id=80988
nsCOMPtr<nsIContent> content;
do {
if (NS_FAILED(sib->QueryInterface(NS_GET_IID(nsIMenuFrame),
(void **)&sibMenu)))
continue;
if (sibMenu != (nsIMenuFrame *)this && // correct way to check?
(sibMenu->GetMenuType(sibType), sibType == eMenuType_Radio) &&
(sibMenu->MenuIsChecked(sibChecked), sibChecked) &&
(sibMenu->GetRadioGroupName(sibGroup), sibGroup == mGroupName)) {
if (NS_FAILED(sib->GetContent(getter_AddRefs(content))))
continue; // break?
/* uncheck the old item */
content->UnsetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked,
PR_TRUE);
/* XXX in DEBUG, check to make sure that there aren't two checked items */
return;
}
} while(NS_SUCCEEDED(sib->GetNextSibling(&sib)) && sib);
}
void
nsMenuFrame::BuildAcceleratorText(nsString& aAccelString)
{
nsAutoString accelText;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::acceltext, accelText);
if (!accelText.IsEmpty()) {
// Just use this.
aAccelString = accelText;
return;
}
// See if we have a key node and use that instead.
nsAutoString keyValue;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::key, keyValue);
if (keyValue.IsEmpty())
return;
nsCOMPtr<nsIDocument> document;
mContent->GetDocument(*getter_AddRefs(document));
// Turn the document into a XUL document so we can use getElementById
nsCOMPtr<nsIDOMXULDocument> xulDocument(do_QueryInterface(document));
if (!xulDocument)
return;
nsCOMPtr<nsIDOMElement> keyDOMElement;
xulDocument->GetElementById(keyValue, getter_AddRefs(keyDOMElement));
if (!keyDOMElement)
return;
nsCOMPtr<nsIContent> keyElement(do_QueryInterface(keyDOMElement));
if (!keyElement)
return;
// get the string to display as accelerator text
// check the key element's attributes in this order:
// |keytext|, |key|, |keycode|
nsAutoString accelString;
keyElement->GetAttribute(kNameSpaceID_None, nsXULAtoms::keytext, accelString);
if (accelString.IsEmpty()) {
keyElement->GetAttribute(kNameSpaceID_None, nsXULAtoms::key, accelString);
if (!accelString.IsEmpty()) {
accelString.ToUpperCase();
} else {
nsAutoString keyCode;
keyElement->GetAttribute(kNameSpaceID_None, nsXULAtoms::keycode, keyCode);
keyCode.ToUpperCase();
nsresult rv;
nsCOMPtr<nsIStringBundleService> bundleService(do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv));
if (NS_SUCCEEDED(rv) && 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_MAC
accelKey = nsIDOMKeyEvent::DOM_VK_META;
#else
accelKey = nsIDOMKeyEvent::DOM_VK_CONTROL;
#endif
// Get the accelerator key value from prefs, overriding the default:
nsresult rv;
NS_WITH_SERVICE(nsIPref, prefs, NS_PREF_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv) && prefs)
rv = prefs->GetIntPref("ui.key.accelKey", &accelKey);
}
nsAutoString modifiers;
keyElement->GetAttribute(kNameSpaceID_None, nsXULAtoms::modifiers, modifiers);
char* str = modifiers.ToNewCString();
char* newStr;
char* token = nsCRT::strtok(str, ", ", &newStr);
while (token) {
if (PL_strcmp(token, "shift") == 0)
aAccelString += *gShiftText;
else if (PL_strcmp(token, "alt") == 0)
aAccelString += *gMetaText;
else if (PL_strcmp(token, "meta") == 0)
aAccelString += *gAltText;
else if (PL_strcmp(token, "control") == 0)
aAccelString += *gControlText;
else if (PL_strcmp(token, "accel") == 0) {
switch (accelKey)
{
case nsIDOMKeyEvent::DOM_VK_META:
aAccelString += *gMetaText;
break;
case nsIDOMKeyEvent::DOM_VK_ALT:
aAccelString += *gAltText;
break;
case nsIDOMKeyEvent::DOM_VK_CONTROL:
default:
aAccelString += *gControlText;
break;
}
}
aAccelString += *gModifierSeparator;
token = nsCRT::strtok(newStr, ", ", &newStr);
}
nsMemory::Free(str);
aAccelString += accelString;
mContent->SetAttribute(kNameSpaceID_None, nsXULAtoms::acceltext, aAccelString, PR_FALSE);
}
void
nsMenuFrame::Execute()
{
// Temporarily disable rollup events on this menu. This is
// to suppress this menu getting removed in the case where
// the oncommand handler opens a dialog, etc.
if ( nsMenuFrame::mDismissalListener ) {
nsMenuFrame::mDismissalListener->EnableListener(PR_FALSE);
}
// Get our own content node and hold on to it to keep it from going away.
nsCOMPtr<nsIContent> content = dont_QueryInterface(mContent);
// Deselect ourselves.
SelectMenu(PR_FALSE);
// Now hide all of the open menus.
if (mMenuParent)
mMenuParent->HideChain();
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_MENU_ACTION;
event.isShift = PR_FALSE;
event.isControl = PR_FALSE;
event.isAlt = PR_FALSE;
event.isMeta = PR_FALSE;
event.clickCount = 0;
event.widget = nsnull;
// The order of the nsIViewManager and nsIPresShell COM pointers is
// important below. We want the pres shell to get released before the
// associated view manager on exit from this function.
// See bug 54233.
nsCOMPtr<nsIViewManager> kungFuDeathGrip;
nsCOMPtr<nsIPresShell> shell;
nsresult result = mPresContext->GetShell(getter_AddRefs(shell));
nsIFrame* me = this;
if (NS_SUCCEEDED(result) && shell) {
shell->GetViewManager(getter_AddRefs(kungFuDeathGrip));
// See if we have a command elt. If so, we execute on the command instead
// of on our content element.
nsAutoString command;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::command, command);
if (!command.IsEmpty()) {
nsCOMPtr<nsIDocument> doc;
mContent->GetDocument(*getter_AddRefs(doc));
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(doc));
nsCOMPtr<nsIDOMElement> commandElt;
domDoc->GetElementById(command, getter_AddRefs(commandElt));
nsCOMPtr<nsIContent> commandContent(do_QueryInterface(commandElt));
if (commandContent)
shell->HandleDOMEventWithTarget(commandContent, &event, &status);
else
NS_ASSERTION(PR_FALSE, "A XUL <menuitem> is attached to a command that doesn't exist! Unable to execute menu item!\n");
}
else
shell->HandleDOMEventWithTarget(mContent, &event, &status);
}
// XXX HACK. Just gracefully exit if the node has been removed, e.g., window.close()
// was executed.
nsCOMPtr<nsIDocument> doc;
content->GetDocument(*getter_AddRefs(doc));
nsIFrame* primary = nsnull;
if (shell) shell->GetPrimaryFrameFor(content, &primary);
// Now properly close them all up.
if (doc && (primary == me) && mMenuParent) // <-- HACK IS HERE. ICK.
mMenuParent->DismissChain();
// END HACK
// Re-enable rollup events on this menu.
if ( nsMenuFrame::mDismissalListener ) {
nsMenuFrame::mDismissalListener->EnableListener(PR_TRUE);
}
}
PRBool
nsMenuFrame::OnCreate()
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_MENU_CREATE;
event.isShift = PR_FALSE;
event.isControl = PR_FALSE;
event.isAlt = PR_FALSE;
event.isMeta = PR_FALSE;
event.clickCount = 0;
event.widget = nsnull;
nsCOMPtr<nsIContent> child;
GetMenuChildrenElement(getter_AddRefs(child));
nsresult rv;
nsCOMPtr<nsIPresShell> shell;
rv = mPresContext->GetShell(getter_AddRefs(shell));
if (NS_SUCCEEDED(rv) && shell) {
if (child) {
rv = shell->HandleDOMEventWithTarget(child, &event, &status);
}
else {
rv = shell->HandleDOMEventWithTarget(mContent, &event, &status);
}
}
if ( NS_FAILED(rv) || status == nsEventStatus_eConsumeNoDefault )
return PR_FALSE;
// The menu is going to show, and the create handler has executed.
// We should now walk all of our menu item children, checking to see if any
// of them has a command attribute. If so, then several attributes must
// potentially be updated.
if (child) {
nsCOMPtr<nsIDocument> doc;
child->GetDocument(*getter_AddRefs(doc));
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(doc));
PRInt32 count;
child->ChildCount(count);
for (PRInt32 i = 0; i < count; i++) {
nsCOMPtr<nsIContent> grandChild;
child->ChildAt(i, *getter_AddRefs(grandChild));
nsCOMPtr<nsIAtom> tag;
grandChild->GetTag(*getter_AddRefs(tag));
if (tag.get() == nsXULAtoms::menuitem) {
// See if we have a command attribute.
nsAutoString command;
grandChild->GetAttribute(kNameSpaceID_None, nsXULAtoms::command, command);
if (!command.IsEmpty()) {
// We do! Look it up in our document
nsCOMPtr<nsIDOMElement> commandElt;
domDoc->GetElementById(command, getter_AddRefs(commandElt));
nsCOMPtr<nsIContent> commandContent(do_QueryInterface(commandElt));
if ( commandContent ) {
nsAutoString commandAttr, menuAttr;
commandContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, commandAttr);
grandChild->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, menuAttr);
if (!commandAttr.Equals(menuAttr)) {
// The menu's disabled state needs to be updated to match the command.
if (commandAttr.IsEmpty())
grandChild->UnsetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, PR_TRUE);
else grandChild->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, commandAttr, PR_TRUE);
}
commandAttr.AssignWithConversion("");
menuAttr.AssignWithConversion("");
// The menu's label and checked states need to be updated to match the command.
// Note that (unlike the disabled state) if the command has *no* label for either, we
// assume the menu is supplying its own.
commandContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked, commandAttr);
grandChild->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked, menuAttr);
if (!commandAttr.Equals(menuAttr)) {
if (!commandAttr.IsEmpty())
grandChild->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::checked, commandAttr, PR_TRUE);
}
commandAttr.AssignWithConversion("");
menuAttr.AssignWithConversion("");
commandContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::label, commandAttr);
grandChild->GetAttribute(kNameSpaceID_None, nsXULAtoms::label, menuAttr);
if (!commandAttr.Equals(menuAttr)) {
if (!commandAttr.IsEmpty())
grandChild->SetAttribute(kNameSpaceID_None, nsXULAtoms::label, commandAttr, PR_TRUE);
}
}
}
}
}
}
return PR_TRUE;
}
PRBool
nsMenuFrame::OnDestroy()
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_MENU_DESTROY;
event.isShift = PR_FALSE;
event.isControl = PR_FALSE;
event.isAlt = PR_FALSE;
event.isMeta = PR_FALSE;
event.clickCount = 0;
event.widget = nsnull;
nsCOMPtr<nsIContent> child;
GetMenuChildrenElement(getter_AddRefs(child));
nsresult rv;
nsCOMPtr<nsIPresShell> shell;
rv = mPresContext->GetShell(getter_AddRefs(shell));
if (NS_SUCCEEDED(rv) && shell) {
if (child) {
rv = shell->HandleDOMEventWithTarget(child, &event, &status);
}
else {
rv = shell->HandleDOMEventWithTarget(mContent, &event, &status);
}
}
if ( NS_FAILED(rv) || status == nsEventStatus_eConsumeNoDefault )
return PR_FALSE;
return PR_TRUE;
}
NS_IMETHODIMP
nsMenuFrame::RemoveFrame(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aOldFrame)
{
nsresult rv;
if (mPopupFrames.ContainsFrame(aOldFrame)) {
// Go ahead and remove this frame.
mPopupFrames.DestroyFrame(aPresContext, aOldFrame);
nsBoxLayoutState state(aPresContext);
rv = MarkDirtyChildren(state);
} else {
rv = nsBoxFrame::RemoveFrame(aPresContext, aPresShell, aListName, aOldFrame);
}
return rv;
}
NS_IMETHODIMP
nsMenuFrame::InsertFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList)
{
nsCOMPtr<nsIAtom> tag;
nsresult rv;
nsCOMPtr<nsIMenuParent> menuPar(do_QueryInterface(aFrameList));
if (menuPar) {
nsCOMPtr<nsIBox> menupopup(do_QueryInterface(aFrameList));
NS_ASSERTION(menupopup,"Popup is not a box!!!");
menupopup->SetParentBox(this);
mPopupFrames.InsertFrames(nsnull, nsnull, aFrameList);
nsBoxLayoutState state(aPresContext);
SetDebug(state, aFrameList, mState & NS_STATE_CURRENTLY_IN_DEBUG);
rv = MarkDirtyChildren(state);
} else {
rv = nsBoxFrame::InsertFrames(aPresContext, aPresShell, aListName, aPrevFrame, aFrameList);
}
return rv;
}
NS_IMETHODIMP
nsMenuFrame::AppendFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aFrameList)
{
if (!aFrameList)
return NS_OK;
nsCOMPtr<nsIAtom> tag;
nsresult rv;
nsCOMPtr<nsIMenuParent> menuPar(do_QueryInterface(aFrameList));
if (menuPar) {
nsCOMPtr<nsIBox> menupopup(do_QueryInterface(aFrameList));
NS_ASSERTION(menupopup,"Popup is not a box!!!");
menupopup->SetParentBox(this);
mPopupFrames.AppendFrames(nsnull, aFrameList);
nsBoxLayoutState state(aPresContext);
SetDebug(state, aFrameList, mState & NS_STATE_CURRENTLY_IN_DEBUG);
rv = MarkDirtyChildren(state);
} else {
rv = nsBoxFrame::AppendFrames(aPresContext, aPresShell, aListName, aFrameList);
}
return rv;
}
void
nsMenuFrame::UpdateDismissalListener(nsIMenuParent* aMenuParent)
{
if (!nsMenuFrame::mDismissalListener) {
if (!aMenuParent)
return;
// Create the listener and attach it to the outermost window.
aMenuParent->CreateDismissalListener();
}
// Make sure the menu dismissal listener knows what the current
// innermost menu popup frame is.
nsMenuFrame::mDismissalListener->SetCurrentMenuParent(aMenuParent);
}
NS_IMETHODIMP
nsMenuFrame::GetPrefSize(nsBoxLayoutState& aState, nsSize& aSize)
{
aSize.width = 0;
aSize.height = 0;
nsresult rv = nsBoxFrame::GetPrefSize(aState, aSize);
nsAutoString sizedToPopup;
mContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::sizetopopup, sizedToPopup);
PRBool sizeToPopup = (sizedToPopup.EqualsIgnoreCase("true"));
if (sizeToPopup) {
nsSize tmpSize(-1,0);
nsIBox::AddCSSPrefSize(aState, this, tmpSize);
nscoord flex;
GetFlex(aState, flex);
if (tmpSize.width == -1 && flex==0) {
nsIFrame* frame = mPopupFrames.FirstChild();
if (!frame) {
MarkAsGenerated();
frame = mPopupFrames.FirstChild();
// No child - just return
if (!frame) return NS_OK;
}
nsIBox* ibox = nsnull;
nsresult rv2 = frame->QueryInterface(NS_GET_IID(nsIBox), (void**)&ibox);
NS_ASSERTION(NS_SUCCEEDED(rv2) && ibox,"popupChild is not box!!");
ibox->GetPrefSize(aState, tmpSize);
aSize.width = tmpSize.width;
}
}
return rv;
}
NS_IMETHODIMP
nsMenuFrame::GetActiveChild(nsIDOMElement** aResult)
{
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
if (!frame)
return NS_ERROR_FAILURE;
nsIMenuFrame* menuFrame;
menuPopup->GetCurrentMenuItem(&menuFrame);
if (!menuFrame) {
*aResult = nsnull;
}
else {
nsIFrame* f;
menuFrame->QueryInterface(NS_GET_IID(nsIFrame), (void**)&f);
nsCOMPtr<nsIContent> c;
f->GetContent(getter_AddRefs(c));
nsCOMPtr<nsIDOMElement> elt(do_QueryInterface(c));
*aResult = elt;
NS_IF_ADDREF(*aResult);
}
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::SetActiveChild(nsIDOMElement* aChild)
{
nsIFrame* frame = mPopupFrames.FirstChild();
nsMenuPopupFrame* menuPopup = (nsMenuPopupFrame*)frame;
if (!frame)
return NS_ERROR_FAILURE;
if (!aChild) {
// Remove the current selection
menuPopup->SetCurrentMenuItem(nsnull);
return NS_OK;
}
nsCOMPtr<nsIContent> child(do_QueryInterface(aChild));
nsCOMPtr<nsIPresShell> shell;
mPresContext->GetShell(getter_AddRefs(shell));
nsIFrame* kid;
shell->GetPrimaryFrameFor(child, &kid);
if (!kid)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIMenuFrame> menuFrame(do_QueryInterface(kid));
if (!menuFrame)
return NS_ERROR_FAILURE;
menuPopup->SetCurrentMenuItem(menuFrame);
return NS_OK;
}
NS_IMETHODIMP
nsMenuFrame::GetScrollableView(nsIScrollableView** aView)
{
*aView = nsnull;
if (!mPopupFrames.FirstChild())
return NS_OK;
nsMenuPopupFrame* popup = (nsMenuPopupFrame*) mPopupFrames.FirstChild();
nsIFrame* childFrame = nsnull;
popup->FirstChild(mPresContext, nsnull, &childFrame);
if (childFrame) {
*aView = popup->GetScrollableView(childFrame);
nsRect itemRect;
childFrame->GetRect(itemRect);
(*aView)->SetLineHeight(itemRect.height);
}
return NS_OK;
}
/* Need to figure out what this does.
NS_IMETHODIMP
nsMenuFrame::GetBoxInfo(nsIPresContext* aPresContext, const nsHTMLReflowState& aReflowState, nsBoxInfo& aSize)
{
nsresult rv = nsBoxFrame::GetBoxInfo(aPresContext, aReflowState, aSize);
nsCOMPtr<nsIDOMXULMenuListElement> menulist(do_QueryInterface(mContent));
if (menulist) {
nsCalculatedBoxInfo boxInfo(this);
boxInfo.prefSize.width = NS_UNCONSTRAINEDSIZE;
boxInfo.prefSize.height = NS_UNCONSTRAINEDSIZE;
boxInfo.flex = 0;
GetRedefinedMinPrefMax(aPresContext, this, boxInfo);
if (boxInfo.prefSize.width == NS_UNCONSTRAINEDSIZE &&
boxInfo.prefSize.height == NS_UNCONSTRAINEDSIZE &&
boxInfo.flex == 0) {
nsIFrame* frame = mPopupFrames.FirstChild();
if (!frame) {
MarkAsGenerated();
frame = mPopupFrames.FirstChild();
}
nsCOMPtr<nsIBox> box(do_QueryInterface(frame));
nsCalculatedBoxInfo childInfo(frame);
box->GetBoxInfo(aPresContext, aReflowState, childInfo);
GetRedefinedMinPrefMax(aPresContext, this, childInfo);
aSize.prefSize.width = childInfo.prefSize.width;
}
// This retrieval guarantess that the selectedItem will
// be set before we lay out.
nsCOMPtr<nsIDOMElement> element;
menulist->GetSelectedItem(getter_AddRefs(element));
}
return rv;
}
*/
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