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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <dlfcn.h>
#include "nsMenuX.h"
#include "nsMenuItemX.h"
#include "nsMenuUtilsX.h"
#include "nsMenuItemIconX.h"
#include "nsStandaloneNativeMenu.h"
#include "nsObjCExceptions.h"
#include "nsToolkit.h"
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
#include "nsCOMPtr.h"
#include "prinrval.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsUnicharUtils.h"
#include "plstr.h"
#include "nsGkAtoms.h"
#include "nsCRT.h"
#include "nsBaseWidget.h"
#include "nsIDocument.h"
#include "nsIContent.h"
#include "nsIDOMDocument.h"
#include "nsIDocumentObserver.h"
#include "nsIComponentManager.h"
#include "nsIRollupListener.h"
#include "nsIDOMElement.h"
#include "nsBindingManager.h"
#include "nsIServiceManager.h"
#include "nsXULPopupManager.h"
#include "mozilla/dom/ScriptSettings.h"
#include "jsapi.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptContext.h"
#include "nsIXPConnect.h"
#include "mozilla/MouseEvents.h"
using namespace mozilla;
static bool gConstructingMenu = false;
static bool gMenuMethodsSwizzled = false;
int32_t nsMenuX::sIndexingMenuLevel = 0;
//
// Objective-C class used for representedObject
//
@implementation MenuItemInfo
- (id) initWithMenuGroupOwner:(nsMenuGroupOwnerX *)aMenuGroupOwner
{
if ((self = [super init]) != nil) {
[self setMenuGroupOwner:aMenuGroupOwner];
}
return self;
}
- (void) dealloc
{
[self setMenuGroupOwner:nullptr];
[super dealloc];
}
- (nsMenuGroupOwnerX *) menuGroupOwner
{
return mMenuGroupOwner;
}
- (void) setMenuGroupOwner:(nsMenuGroupOwnerX *)aMenuGroupOwner
{
// weak reference as the nsMenuGroupOwnerX owns all of its sub-objects
mMenuGroupOwner = aMenuGroupOwner;
if (aMenuGroupOwner) {
aMenuGroupOwner->AddMenuItemInfoToSet(self);
}
}
@end
//
// nsMenuX
//
nsMenuX::nsMenuX()
: mVisibleItemsCount(0), mParent(nullptr), mMenuGroupOwner(nullptr),
mNativeMenu(nil), mNativeMenuItem(nil), mIsEnabled(true),
mDestroyHandlerCalled(false), mNeedsRebuild(true),
mConstructed(false), mVisible(true), mXBLAttached(false)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!gMenuMethodsSwizzled) {
if (nsCocoaFeatures::OnLeopardOrLater()) {
nsToolkit::SwizzleMethods([NSMenu class], @selector(_addItem:toTable:),
@selector(nsMenuX_NSMenu_addItem:toTable:), true);
nsToolkit::SwizzleMethods([NSMenu class], @selector(_removeItem:fromTable:),
@selector(nsMenuX_NSMenu_removeItem:fromTable:), true);
// On SnowLeopard the Shortcut framework (which contains the
// SCTGRLIndex class) is loaded on demand, whenever the user first opens
// a menu (which normally hasn't happened yet). So we need to load it
// here explicitly.
if (nsCocoaFeatures::OnSnowLeopardOrLater())
dlopen("/System/Library/PrivateFrameworks/Shortcut.framework/Shortcut", RTLD_LAZY);
Class SCTGRLIndexClass = ::NSClassFromString(@"SCTGRLIndex");
nsToolkit::SwizzleMethods(SCTGRLIndexClass, @selector(indexMenuBarDynamically),
@selector(nsMenuX_SCTGRLIndex_indexMenuBarDynamically));
} else {
nsToolkit::SwizzleMethods([NSMenu class],
@selector(performKeyEquivalent:),
@selector(nsMenuX_NSMenu_performKeyEquivalent:),
true);
}
gMenuMethodsSwizzled = true;
}
mMenuDelegate = [[MenuDelegate alloc] initWithGeckoMenu:this];
if (!nsMenuBarX::sNativeEventTarget)
nsMenuBarX::sNativeEventTarget = [[NativeMenuItemTarget alloc] init];
MOZ_COUNT_CTOR(nsMenuX);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsMenuX::~nsMenuX()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Prevent the icon object from outliving us.
if (mIcon)
mIcon->Destroy();
RemoveAll();
[mNativeMenu setDelegate:nil];
[mNativeMenu release];
[mMenuDelegate release];
// autorelease the native menu item so that anything else happening to this
// object happens before the native menu item actually dies
[mNativeMenuItem autorelease];
// alert the change notifier we don't care no more
if (mContent)
mMenuGroupOwner->UnregisterForContentChanges(mContent);
MOZ_COUNT_DTOR(nsMenuX);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsresult nsMenuX::Create(nsMenuObjectX* aParent, nsMenuGroupOwnerX* aMenuGroupOwner, nsIContent* aNode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
mContent = aNode;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::label, mLabel);
mNativeMenu = CreateMenuWithGeckoString(mLabel);
// register this menu to be notified when changes are made to our content object
mMenuGroupOwner = aMenuGroupOwner; // weak ref
NS_ASSERTION(mMenuGroupOwner, "No menu owner given, must have one");
mMenuGroupOwner->RegisterForContentChanges(mContent, this);
mParent = aParent;
// our parent could be either a menu bar (if we're toplevel) or a menu (if we're a submenu)
#ifdef DEBUG
nsMenuObjectTypeX parentType =
#endif
mParent->MenuObjectType();
NS_ASSERTION((parentType == eMenuBarObjectType || parentType == eSubmenuObjectType || parentType == eStandaloneNativeMenuObjectType),
"Menu parent not a menu bar, menu, or native menu!");
if (nsMenuUtilsX::NodeIsHiddenOrCollapsed(mContent))
mVisible = false;
if (mContent->GetChildCount() == 0)
mVisible = false;
NSString *newCocoaLabelString = nsMenuUtilsX::GetTruncatedCocoaLabel(mLabel);
mNativeMenuItem = [[NSMenuItem alloc] initWithTitle:newCocoaLabelString action:nil keyEquivalent:@""];
[mNativeMenuItem setSubmenu:mNativeMenu];
SetEnabled(!mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
nsGkAtoms::_true, eCaseMatters));
// We call MenuConstruct here because keyboard commands are dependent upon
// native menu items being created. If we only call MenuConstruct when a menu
// is actually selected, then we can't access keyboard commands until the
// menu gets selected, which is bad.
MenuConstruct();
mIcon = new nsMenuItemIconX(this, mContent, mNativeMenuItem);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult nsMenuX::AddMenuItem(nsMenuItemX* aMenuItem)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (!aMenuItem)
return NS_ERROR_INVALID_ARG;
mMenuObjectsArray.AppendElement(aMenuItem);
if (nsMenuUtilsX::NodeIsHiddenOrCollapsed(aMenuItem->Content()))
return NS_OK;
++mVisibleItemsCount;
NSMenuItem* newNativeMenuItem = (NSMenuItem*)aMenuItem->NativeData();
// add the menu item to this menu
[mNativeMenu addItem:newNativeMenuItem];
// set up target/action
[newNativeMenuItem setTarget:nsMenuBarX::sNativeEventTarget];
[newNativeMenuItem setAction:@selector(menuItemHit:)];
// set its command. we get the unique command id from the menubar
[newNativeMenuItem setTag:mMenuGroupOwner->RegisterForCommand(aMenuItem)];
MenuItemInfo * info = [[MenuItemInfo alloc] initWithMenuGroupOwner:mMenuGroupOwner];
[newNativeMenuItem setRepresentedObject:info];
[info release];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult nsMenuX::AddMenu(nsMenuX* aMenu)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Add a submenu
if (!aMenu)
return NS_ERROR_NULL_POINTER;
mMenuObjectsArray.AppendElement(aMenu);
if (nsMenuUtilsX::NodeIsHiddenOrCollapsed(aMenu->Content()))
return NS_OK;
++mVisibleItemsCount;
// We have to add a menu item and then associate the menu with it
NSMenuItem* newNativeMenuItem = aMenu->NativeMenuItem();
if (!newNativeMenuItem)
return NS_ERROR_FAILURE;
[mNativeMenu addItem:newNativeMenuItem];
[newNativeMenuItem setSubmenu:(NSMenu*)aMenu->NativeData()];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Includes all items, including hidden/collapsed ones
uint32_t nsMenuX::GetItemCount()
{
return mMenuObjectsArray.Length();
}
// Includes all items, including hidden/collapsed ones
nsMenuObjectX* nsMenuX::GetItemAt(uint32_t aPos)
{
if (aPos >= (uint32_t)mMenuObjectsArray.Length())
return NULL;
return mMenuObjectsArray[aPos];
}
// Only includes visible items
nsresult nsMenuX::GetVisibleItemCount(uint32_t &aCount)
{
aCount = mVisibleItemsCount;
return NS_OK;
}
// Only includes visible items. Note that this is provides O(N) access
// If you need to iterate or search, consider using GetItemAt and doing your own filtering
nsMenuObjectX* nsMenuX::GetVisibleItemAt(uint32_t aPos)
{
uint32_t count = mMenuObjectsArray.Length();
if (aPos >= mVisibleItemsCount || aPos >= count)
return NULL;
// If there are no invisible items, can provide direct access
if (mVisibleItemsCount == count)
return mMenuObjectsArray[aPos];
// Otherwise, traverse the array until we find the the item we're looking for.
nsMenuObjectX* item;
uint32_t visibleNodeIndex = 0;
for (uint32_t i = 0; i < count; i++) {
item = mMenuObjectsArray[i];
if (!nsMenuUtilsX::NodeIsHiddenOrCollapsed(item->Content())) {
if (aPos == visibleNodeIndex) {
// we found the visible node we're looking for, return it
return item;
}
visibleNodeIndex++;
}
}
return NULL;
}
nsresult nsMenuX::RemoveAll()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (mNativeMenu) {
// clear command id's
int itemCount = [mNativeMenu numberOfItems];
for (int i = 0; i < itemCount; i++)
mMenuGroupOwner->UnregisterCommand((uint32_t)[[mNativeMenu itemAtIndex:i] tag]);
// get rid of Cocoa menu items
for (int i = [mNativeMenu numberOfItems] - 1; i >= 0; i--)
[mNativeMenu removeItemAtIndex:i];
}
mMenuObjectsArray.Clear();
mVisibleItemsCount = 0;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsEventStatus nsMenuX::MenuOpened()
{
// Open the node.
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("true"), true);
// Fire a handler. If we're told to stop, don't build the menu at all
bool keepProcessing = OnOpen();
if (!mNeedsRebuild || !keepProcessing)
return nsEventStatus_eConsumeNoDefault;
if (!mConstructed || mNeedsRebuild) {
if (mNeedsRebuild)
RemoveAll();
MenuConstruct();
mConstructed = true;
}
nsEventStatus status = nsEventStatus_eIgnore;
WidgetMouseEvent event(true, eXULPopupShown, nullptr,
WidgetMouseEvent::eReal);
nsCOMPtr<nsIContent> popupContent;
GetMenuPopupContent(getter_AddRefs(popupContent));
nsIContent* dispatchTo = popupContent ? popupContent : mContent;
dispatchTo->DispatchDOMEvent(&event, nullptr, nullptr, &status);
return nsEventStatus_eConsumeNoDefault;
}
void nsMenuX::MenuClosed()
{
if (mConstructed) {
// Don't close if a handler tells us to stop.
if (!OnClose())
return;
if (mNeedsRebuild)
mConstructed = false;
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::open, true);
nsEventStatus status = nsEventStatus_eIgnore;
WidgetMouseEvent event(true, eXULPopupHidden, nullptr,
WidgetMouseEvent::eReal);
nsCOMPtr<nsIContent> popupContent;
GetMenuPopupContent(getter_AddRefs(popupContent));
nsIContent* dispatchTo = popupContent ? popupContent : mContent;
dispatchTo->DispatchDOMEvent(&event, nullptr, nullptr, &status);
mDestroyHandlerCalled = true;
mConstructed = false;
}
#ifdef DEBUG
fprintf(stderr, "Menu closed\n");
#endif
}
void nsMenuX::MenuConstruct()
{
mConstructed = false;
gConstructingMenu = true;
// reset destroy handler flag so that we'll know to fire it next time this menu goes away.
mDestroyHandlerCalled = false;
//printf("nsMenuX::MenuConstruct called for %s = %d \n", NS_LossyConvertUTF16toASCII(mLabel).get(), mNativeMenu);
#ifdef DEBUG
fprintf(stderr, "nsMenuX::MenuConstruct called for %s = %d \n", NS_LossyConvertUTF16toASCII(mLabel).get(), mNativeMenu);
#endif
// Retrieve our menupopup.
nsCOMPtr<nsIContent> menuPopup;
GetMenuPopupContent(getter_AddRefs(menuPopup));
if (!menuPopup) {
gConstructingMenu = false;
return;
}
// bug 365405: Manually wrap the menupopup node to make sure it's bounded
if (!mXBLAttached) {
nsresult rv;
nsCOMPtr<nsIXPConnect> xpconnect =
do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_SUCCEEDED(rv)) {
nsIDocument* ownerDoc = menuPopup->OwnerDoc();
dom::AutoJSAPI jsapi;
if (ownerDoc && jsapi.Init(ownerDoc->GetInnerWindow())) {
JSContext* cx = jsapi.cx();
JS::RootedObject ignoredObj(cx);
nsCOMPtr<nsIXPConnectJSObjectHolder> wrapper;
xpconnect->WrapNative(cx, JS::CurrentGlobalOrNull(cx), menuPopup,
NS_GET_IID(nsISupports), ignoredObj.address());
mXBLAttached = true;
}
}
}
// Iterate over the kids
uint32_t count = menuPopup->GetChildCount();
for (uint32_t i = 0; i < count; i++) {
nsIContent *child = menuPopup->GetChildAt(i);
if (child) {
// depending on the type, create a menu item, separator, or submenu
if (child->IsAnyOfXULElements(nsGkAtoms::menuitem,
nsGkAtoms::menuseparator)) {
LoadMenuItem(child);
} else if (child->IsXULElement(nsGkAtoms::menu)) {
LoadSubMenu(child);
}
}
} // for each menu item
gConstructingMenu = false;
mNeedsRebuild = false;
// printf("Done building, mMenuObjectsArray.Count() = %d \n", mMenuObjectsArray.Count());
}
void nsMenuX::SetRebuild(bool aNeedsRebuild)
{
if (!gConstructingMenu)
mNeedsRebuild = aNeedsRebuild;
}
nsresult nsMenuX::SetEnabled(bool aIsEnabled)
{
if (aIsEnabled != mIsEnabled) {
// we always want to rebuild when this changes
mIsEnabled = aIsEnabled;
[mNativeMenuItem setEnabled:(BOOL)mIsEnabled];
}
return NS_OK;
}
nsresult nsMenuX::GetEnabled(bool* aIsEnabled)
{
NS_ENSURE_ARG_POINTER(aIsEnabled);
*aIsEnabled = mIsEnabled;
return NS_OK;
}
GeckoNSMenu* nsMenuX::CreateMenuWithGeckoString(nsString& menuTitle)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
NSString* title = [NSString stringWithCharacters:(UniChar*)menuTitle.get() length:menuTitle.Length()];
GeckoNSMenu* myMenu = [[GeckoNSMenu alloc] initWithTitle:title];
[myMenu setDelegate:mMenuDelegate];
// We don't want this menu to auto-enable menu items because then Cocoa
// overrides our decisions and things get incorrectly enabled/disabled.
[myMenu setAutoenablesItems:NO];
// we used to install Carbon event handlers here, but since NSMenu* doesn't
// create its underlying MenuRef until just before display, we delay until
// that happens. Now we install the event handlers when Cocoa notifies
// us that a menu is about to display - see the Cocoa MenuDelegate class.
return myMenu;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
void nsMenuX::LoadMenuItem(nsIContent* inMenuItemContent)
{
if (!inMenuItemContent)
return;
nsAutoString menuitemName;
inMenuItemContent->GetAttr(kNameSpaceID_None, nsGkAtoms::label, menuitemName);
// printf("menuitem %s \n", NS_LossyConvertUTF16toASCII(menuitemName).get());
EMenuItemType itemType = eRegularMenuItemType;
if (inMenuItemContent->IsXULElement(nsGkAtoms::menuseparator)) {
itemType = eSeparatorMenuItemType;
}
else {
static nsIContent::AttrValuesArray strings[] =
{&nsGkAtoms::checkbox, &nsGkAtoms::radio, nullptr};
switch (inMenuItemContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::type,
strings, eCaseMatters)) {
case 0: itemType = eCheckboxMenuItemType; break;
case 1: itemType = eRadioMenuItemType; break;
}
}
// Create the item.
nsMenuItemX* menuItem = new nsMenuItemX();
if (!menuItem)
return;
nsresult rv = menuItem->Create(this, menuitemName, itemType, mMenuGroupOwner, inMenuItemContent);
if (NS_FAILED(rv)) {
delete menuItem;
return;
}
AddMenuItem(menuItem);
// This needs to happen after the nsIMenuItem object is inserted into
// our item array in AddMenuItem()
menuItem->SetupIcon();
}
void nsMenuX::LoadSubMenu(nsIContent* inMenuContent)
{
nsAutoPtr<nsMenuX> menu(new nsMenuX());
if (!menu)
return;
nsresult rv = menu->Create(this, mMenuGroupOwner, inMenuContent);
if (NS_FAILED(rv))
return;
AddMenu(menu);
// This needs to happen after the nsIMenu object is inserted into
// our item array in AddMenu()
menu->SetupIcon();
menu.forget();
}
// This menu is about to open. Returns TRUE if we should keep processing the event,
// FALSE if the handler wants to stop the opening of the menu.
bool nsMenuX::OnOpen()
{
nsEventStatus status = nsEventStatus_eIgnore;
WidgetMouseEvent event(true, eXULPopupShowing, nullptr,
WidgetMouseEvent::eReal);
nsCOMPtr<nsIContent> popupContent;
GetMenuPopupContent(getter_AddRefs(popupContent));
nsresult rv = NS_OK;
nsIContent* dispatchTo = popupContent ? popupContent : mContent;
rv = dispatchTo->DispatchDOMEvent(&event, nullptr, nullptr, &status);
if (NS_FAILED(rv) || status == nsEventStatus_eConsumeNoDefault)
return false;
// If the open is going to succeed we need to walk our menu items, checking to
// see if any of them have a command attribute. If so, several attributes
// must potentially be updated.
// Get new popup content first since it might have changed as a result of the
// eXULPopupShowing event above.
GetMenuPopupContent(getter_AddRefs(popupContent));
if (!popupContent)
return true;
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
pm->UpdateMenuItems(popupContent);
}
return true;
}
// Returns TRUE if we should keep processing the event, FALSE if the handler
// wants to stop the closing of the menu.
bool nsMenuX::OnClose()
{
if (mDestroyHandlerCalled)
return true;
nsEventStatus status = nsEventStatus_eIgnore;
WidgetMouseEvent event(true, eXULPopupHiding, nullptr,
WidgetMouseEvent::eReal);
nsCOMPtr<nsIContent> popupContent;
GetMenuPopupContent(getter_AddRefs(popupContent));
nsresult rv = NS_OK;
nsIContent* dispatchTo = popupContent ? popupContent : mContent;
rv = dispatchTo->DispatchDOMEvent(&event, nullptr, nullptr, &status);
mDestroyHandlerCalled = true;
if (NS_FAILED(rv) || status == nsEventStatus_eConsumeNoDefault)
return false;
return true;
}
// Find the |menupopup| child in the |popup| representing this menu. It should be one
// of a very few children so we won't be iterating over a bazillion menu items to find
// it (so the strcmp won't kill us).
void nsMenuX::GetMenuPopupContent(nsIContent** aResult)
{
if (!aResult)
return;
*aResult = nullptr;
// Check to see if we are a "menupopup" node (if we are a native menu).
{
int32_t dummy;
nsCOMPtr<nsIAtom> tag = mContent->OwnerDoc()->BindingManager()->ResolveTag(mContent, &dummy);
if (tag == nsGkAtoms::menupopup) {
*aResult = mContent;
NS_ADDREF(*aResult);
return;
}
}
// Otherwise check our child nodes.
uint32_t count = mContent->GetChildCount();
for (uint32_t i = 0; i < count; i++) {
int32_t dummy;
nsIContent *child = mContent->GetChildAt(i);
nsCOMPtr<nsIAtom> tag = child->OwnerDoc()->BindingManager()->ResolveTag(child, &dummy);
if (tag == nsGkAtoms::menupopup) {
*aResult = child;
NS_ADDREF(*aResult);
return;
}
}
}
NSMenuItem* nsMenuX::NativeMenuItem()
{
return mNativeMenuItem;
}
bool nsMenuX::IsXULHelpMenu(nsIContent* aMenuContent)
{
bool retval = false;
if (aMenuContent) {
nsAutoString mid;
aMenuContent->GetAttr(kNameSpaceID_None, nsGkAtoms::id, mid);
if (mid.Equals(NS_LITERAL_STRING("helpMenu")))
retval = true;
}
return retval;
}
//
// nsChangeObserver
//
void nsMenuX::ObserveAttributeChanged(nsIDocument *aDocument, nsIContent *aContent,
nsIAtom *aAttribute)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// ignore the |open| attribute, which is by far the most common
if (gConstructingMenu || (aAttribute == nsGkAtoms::open))
return;
nsMenuObjectTypeX parentType = mParent->MenuObjectType();
if (aAttribute == nsGkAtoms::disabled) {
SetEnabled(!mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
nsGkAtoms::_true, eCaseMatters));
}
else if (aAttribute == nsGkAtoms::label) {
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::label, mLabel);
// invalidate my parent. If we're a submenu parent, we have to rebuild
// the parent menu in order for the changes to be picked up. If we're
// a regular menu, just change the title and redraw the menubar.
if (parentType == eMenuBarObjectType) {
// reuse the existing menu, to avoid rebuilding the root menu bar.
NS_ASSERTION(mNativeMenu, "nsMenuX::AttributeChanged: invalid menu handle.");
NSString *newCocoaLabelString = nsMenuUtilsX::GetTruncatedCocoaLabel(mLabel);
[mNativeMenu setTitle:newCocoaLabelString];
}
else if (parentType == eSubmenuObjectType) {
static_cast<nsMenuX*>(mParent)->SetRebuild(true);
}
else if (parentType == eStandaloneNativeMenuObjectType) {
static_cast<nsStandaloneNativeMenu*>(mParent)->GetMenuXObject()->SetRebuild(true);
}
}
else if (aAttribute == nsGkAtoms::hidden || aAttribute == nsGkAtoms::collapsed) {
SetRebuild(true);
bool contentIsHiddenOrCollapsed = nsMenuUtilsX::NodeIsHiddenOrCollapsed(mContent);
// don't do anything if the state is correct already
if (contentIsHiddenOrCollapsed != mVisible)
return;
if (contentIsHiddenOrCollapsed) {
if (parentType == eMenuBarObjectType ||
parentType == eSubmenuObjectType ||
parentType == eStandaloneNativeMenuObjectType) {
NSMenu* parentMenu = (NSMenu*)mParent->NativeData();
// An exception will get thrown if we try to remove an item that isn't
// in the menu.
if ([parentMenu indexOfItem:mNativeMenuItem] != -1)
[parentMenu removeItem:mNativeMenuItem];
mVisible = false;
}
}
else {
if (parentType == eMenuBarObjectType ||
parentType == eSubmenuObjectType ||
parentType == eStandaloneNativeMenuObjectType) {
int insertionIndex = nsMenuUtilsX::CalculateNativeInsertionPoint(mParent, this);
if (parentType == eMenuBarObjectType) {
// Before inserting we need to figure out if we should take the native
// application menu into account.
nsMenuBarX* mb = static_cast<nsMenuBarX*>(mParent);
if (mb->MenuContainsAppMenu())
insertionIndex++;
}
NSMenu* parentMenu = (NSMenu*)mParent->NativeData();
[parentMenu insertItem:mNativeMenuItem atIndex:insertionIndex];
[mNativeMenuItem setSubmenu:mNativeMenu];
mVisible = true;
}
}
}
else if (aAttribute == nsGkAtoms::image) {
SetupIcon();
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsMenuX::ObserveContentRemoved(nsIDocument *aDocument, nsIContent *aChild,
int32_t aIndexInContainer)
{
if (gConstructingMenu)
return;
SetRebuild(true);
mMenuGroupOwner->UnregisterForContentChanges(aChild);
}
void nsMenuX::ObserveContentInserted(nsIDocument *aDocument, nsIContent* aContainer,
nsIContent *aChild)
{
if (gConstructingMenu)
return;
SetRebuild(true);
}
nsresult nsMenuX::SetupIcon()
{
// In addition to out-of-memory, menus that are children of the menu bar
// will not have mIcon set.
if (!mIcon)
return NS_ERROR_OUT_OF_MEMORY;
return mIcon->SetupIcon();
}
#if (1) // MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4)
//
// Carbon event support
//
static pascal OSStatus MyMenuEventHandler(EventHandlerCallRef myHandler, EventRef event, void* userData)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
#ifdef DEBUG
fprintf(stderr, "handling an event\n");
#endif
// Don't do anything while the OS is (re)indexing our menus (on Leopard and
// higher). This stops the Help menu from being able to search in our
// menus, but it also resolves many other problems -- including crashes and
// long delays while opening the Help menu. Once we know better which
// operations are safe during (re)indexing, we can start allowing some
// operations here while it's happening. This change resolves bmo bugs
// 426499 and 414699.
if (nsMenuX::sIndexingMenuLevel > 0)
return noErr;
nsMenuX* targetMenu = static_cast<nsMenuX*>(userData);
UInt32 kind = ::GetEventKind(event);
// On SnowLeopard, our Help menu items often get disabled when the user
// enters a password after waking from sleep or the screen saver. Whether
// or not the user is prompted for a password is governed by the "Require
// password" setting in the Security pref panel. For more information see
// bug 513048.
//
// This is surely an OS bug, though it's not clear exactly what triggers it.
// The end result is that the Help menu's items are turned off in Carbon,
// even though they're turned on in Cocoa. (On SnowLeopard, system menus
// are still implemented in Carbon (at least for for 32-bit apps), using the
// undocumented NSCarbonMenuImpl class.) The workaround for this is to do
// the following whenever a menu is opened: If it's the Help menu, check
// Carbon and Cocoa enabled states of all its menu items. If any of these
// states don't match, change the Carbon enabled state to match the Cocoa
// enabled state.
if (nsCocoaFeatures::OnSnowLeopardOrLater() && targetMenu && (kind == kEventMenuOpening)) {
nsCOMPtr<nsIContent> content(targetMenu->Content());
NSMenu *nativeMenu = static_cast<NSMenu*>(targetMenu->NativeData());
if (content && nativeMenu) {
nsAutoString mid;
content->GetAttr(kNameSpaceID_None, nsGkAtoms::id, mid);
if (mid.Equals(NS_LITERAL_STRING("helpMenu"))) {
MenuRef helpMenuRef = _NSGetCarbonMenu(nativeMenu);
if (helpMenuRef) {
NSArray *items = [nativeMenu itemArray];
NSUInteger count = [items count];
for (NSUInteger i = 0; i < count; ++i) {
NSMenuItem *anItem = (NSMenuItem *) [items objectAtIndex:i];
BOOL cocoaEnabled = [anItem isEnabled];
Boolean carbonEnabled = ::IsMenuItemEnabled(helpMenuRef, i+1);
if (carbonEnabled != cocoaEnabled) {
if (!carbonEnabled) {
::EnableMenuItem(helpMenuRef, i+1);
} else {
::DisableMenuItem(helpMenuRef, i+1);
}
}
}
}
}
}
}
if (kind == kEventMenuTargetItem) {
// get the position of the menu item we want
uint16_t aPos;
::GetEventParameter(event, kEventParamMenuItemIndex, typeMenuItemIndex, NULL, sizeof(MenuItemIndex), NULL, &aPos);
aPos--; // subtract 1 from aPos because Carbon menu positions start at 1 not 0
// don't request a menu item that doesn't exist or we crash
// this might happen just due to some random quirks in the event system
nsMenuObjectX* target = targetMenu->GetVisibleItemAt((uint32_t)aPos);
if (!target)
return eventNotHandledErr;
// Send DOM event if we're over a menu item
if (target->MenuObjectType() == eMenuItemObjectType) {
nsMenuItemX* targetMenuItem = static_cast<nsMenuItemX*>(target);
bool handlerCalledPreventDefault; // but we don't actually care
targetMenuItem->DispatchDOMEvent(NS_LITERAL_STRING("DOMMenuItemActive"), &handlerCalledPreventDefault);
return noErr;
}
}
else if (kind == kEventMenuOpening || kind == kEventMenuClosed) {
#ifdef DEBUG
fprintf(stderr, "menu open/close\n");
#endif
if (kind == kEventMenuOpening)
targetMenu->MenuOpened();
else
targetMenu->MenuClosed();
return noErr;
}
return eventNotHandledErr;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(noErr);
}
static OSStatus InstallMyMenuEventHandler(MenuRef menuRef, void* userData, EventHandlerRef* outHandler)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
static EventTypeSpec eventList[] = {
{kEventClassMenu, kEventMenuOpening},
{kEventClassMenu, kEventMenuClosed},
{kEventClassMenu, kEventMenuTargetItem}
};
static EventHandlerUPP gMyMenuEventHandlerUPP = NewEventHandlerUPP(&MyMenuEventHandler);
OSStatus status = ::InstallMenuEventHandler(menuRef, gMyMenuEventHandlerUPP,
sizeof(eventList) / sizeof(EventTypeSpec), eventList,
userData, outHandler);
NS_ASSERTION(status == noErr,"Installing carbon menu events failed.");
return status;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(noErr);
}
#endif
//
// MenuDelegate Objective-C class, used to set up Carbon events
//
@implementation MenuDelegate
- (id)initWithGeckoMenu:(nsMenuX*)geckoMenu
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
if ((self = [super init])) {
NS_ASSERTION(geckoMenu, "Cannot initialize native menu delegate with NULL gecko menu! Will crash!");
mGeckoMenu = geckoMenu;
#if 1 // (MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4)
mEventHandler = NULL;
#endif
}
return self;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
#if 1 // (MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4)
- (void)dealloc
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (mEventHandler)
::RemoveEventHandler(mEventHandler);
[super dealloc];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
// You can get a MenuRef from an NSMenu*, but not until it has been made visible
// or added to the main menu bar. Basically, Cocoa is attempting lazy loading,
// and that doesn't work for us. We don't need any carbon events until after the
// first time the menu is shown, so when that happens we install the carbon
// event handler. This works because at this point we can get a MenuRef without
// much trouble.
- (void)menuNeedsUpdate:(NSMenu*)aMenu
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mEventHandler) {
MenuRef myMenuRef = _NSGetCarbonMenu(aMenu);
if (myMenuRef)
InstallMyMenuEventHandler(myMenuRef, mGeckoMenu, &mEventHandler);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
#endif
#if (0) // defined(MAC_OS_X_VERSION_10_5) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
- (void)menu:(NSMenu *)menu willHighlightItem:(NSMenuItem *)item
{
if (!menu || !item || !mGeckoMenu)
return;
nsMenuObjectX* target = mGeckoMenu->GetVisibleItemAt((uint32_t)[menu indexOfItem:item]);
if (target && (target->MenuObjectType() == eMenuItemObjectType)) {
nsMenuItemX* targetMenuItem = static_cast<nsMenuItemX*>(target);
bool handlerCalledPreventDefault; // but we don't actually care
targetMenuItem->DispatchDOMEvent(NS_LITERAL_STRING("DOMMenuItemActive"), &handlerCalledPreventDefault);
}
}
- (void)menuWillOpen:(NSMenu *)menu
{
if (!mGeckoMenu)
return;
// Don't do anything while the OS is (re)indexing our menus (on Leopard and
// higher). This stops the Help menu from being able to search in our
// menus, but it also resolves many other problems.
if (nsMenuX::sIndexingMenuLevel > 0)
return;
nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
if (rollupListener) {
nsCOMPtr<nsIWidget> rollupWidget = rollupListener->GetRollupWidget();
if (rollupWidget) {
rollupListener->Rollup(0, true, nullptr, nullptr);
[menu cancelTracking];
return;
}
}
mGeckoMenu->MenuOpened();
}
- (void)menuDidClose:(NSMenu *)menu
{
if (!mGeckoMenu)
return;
// Don't do anything while the OS is (re)indexing our menus (on Leopard and
// higher). This stops the Help menu from being able to search in our
// menus, but it also resolves many other problems.
if (nsMenuX::sIndexingMenuLevel > 0)
return;
mGeckoMenu->MenuClosed();
}
#endif
@end
// OS X Leopard (at least as of 10.5.2) has an obscure bug triggered by some
// behavior that's present in Mozilla.org browsers but not (as best I can
// tell) in Apple products like Safari. (It's not yet clear exactly what this
// behavior is.)
//
// The bug is that sometimes you crash on quit in nsMenuX::RemoveAll(), on a
// call to [NSMenu removeItemAtIndex:]. The crash is caused by trying to
// access a deleted NSMenuItem object (sometimes (perhaps always?) by trying
// to send it a _setChangedFlags: message). Though this object was deleted
// some time ago, it remains registered as a potential target for a particular
// key equivalent. So when [NSMenu removeItemAtIndex:] removes the current
// target for that same key equivalent, the OS tries to "activate" the
// previous target.
//
// The underlying reason appears to be that NSMenu's _addItem:toTable: and
// _removeItem:fromTable: methods (which are used to keep a hashtable of
// registered key equivalents) don't properly "retain" and "release"
// NSMenuItem objects as they are added to and removed from the hashtable.
//
// Our (hackish) workaround is to shadow the OS's hashtable with another
// hastable of our own (gShadowKeyEquivDB), and use it to "retain" and
// "release" NSMenuItem objects as needed. This resolves bmo bugs 422287 and
// 423669. When (if) Apple fixes this bug, we can remove this workaround.
static NSMutableDictionary *gShadowKeyEquivDB = nil;
// Class for values in gShadowKeyEquivDB.
@interface KeyEquivDBItem : NSObject
{
NSMenuItem *mItem;
NSMutableSet *mTables;
}
- (id)initWithItem:(NSMenuItem *)aItem table:(NSMapTable *)aTable;
- (BOOL)hasTable:(NSMapTable *)aTable;
- (int)addTable:(NSMapTable *)aTable;
- (int)removeTable:(NSMapTable *)aTable;
@end
@implementation KeyEquivDBItem
- (id)initWithItem:(NSMenuItem *)aItem table:(NSMapTable *)aTable
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
if (!gShadowKeyEquivDB)
gShadowKeyEquivDB = [[NSMutableDictionary alloc] init];
self = [super init];
if (aItem && aTable) {
mTables = [[NSMutableSet alloc] init];
mItem = [aItem retain];
[mTables addObject:[NSValue valueWithPointer:aTable]];
} else {
mTables = nil;
mItem = nil;
}
return self;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (void)dealloc
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (mTables)
[mTables release];
if (mItem)
[mItem release];
[super dealloc];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (BOOL)hasTable:(NSMapTable *)aTable
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
return [mTables member:[NSValue valueWithPointer:aTable]] ? YES : NO;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
// Does nothing if aTable (its index value) is already present in mTables.
- (int)addTable:(NSMapTable *)aTable
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (aTable)
[mTables addObject:[NSValue valueWithPointer:aTable]];
return [mTables count];
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
}
- (int)removeTable:(NSMapTable *)aTable
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (aTable) {
NSValue *objectToRemove =
[mTables member:[NSValue valueWithPointer:aTable]];
if (objectToRemove)
[mTables removeObject:objectToRemove];
}
return [mTables count];
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
}
@end
@interface NSMenu (MethodSwizzling)
+ (void)nsMenuX_NSMenu_addItem:(NSMenuItem *)aItem toTable:(NSMapTable *)aTable;
+ (void)nsMenuX_NSMenu_removeItem:(NSMenuItem *)aItem fromTable:(NSMapTable *)aTable;
- (BOOL)nsMenuX_NSMenu_performKeyEquivalent:(NSEvent *)theEvent;
@end
@implementation NSMenu (MethodSwizzling)
+ (void)nsMenuX_NSMenu_addItem:(NSMenuItem *)aItem toTable:(NSMapTable *)aTable
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (aItem && aTable) {
NSValue *key = [NSValue valueWithPointer:aItem];
KeyEquivDBItem *shadowItem = [gShadowKeyEquivDB objectForKey:key];
if (shadowItem) {
[shadowItem addTable:aTable];
} else {
shadowItem = [[KeyEquivDBItem alloc] initWithItem:aItem table:aTable];
[gShadowKeyEquivDB setObject:shadowItem forKey:key];
// Release after [NSMutableDictionary setObject:forKey:] retains it (so
// that it will get dealloced when removeObjectForKey: is called).
[shadowItem release];
}
}
NS_OBJC_END_TRY_ABORT_BLOCK;
[self nsMenuX_NSMenu_addItem:aItem toTable:aTable];
}
+ (void)nsMenuX_NSMenu_removeItem:(NSMenuItem *)aItem fromTable:(NSMapTable *)aTable
{
[self nsMenuX_NSMenu_removeItem:aItem fromTable:aTable];
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (aItem && aTable) {
NSValue *key = [NSValue valueWithPointer:aItem];
KeyEquivDBItem *shadowItem = [gShadowKeyEquivDB objectForKey:key];
if (shadowItem && [shadowItem hasTable:aTable]) {
if (![shadowItem removeTable:aTable])
[gShadowKeyEquivDB removeObjectForKey:key];
}
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (BOOL)nsMenuX_NSMenu_performKeyEquivalent:(NSEvent *)theEvent
{
// On OS X 10.4.X (Tiger), Objective-C exceptions can occur during calls to
// [NSMenu performKeyEquivalent:] (from [GeckoNSMenu performKeyEquivalent:]
// or otherwise) that shouldn't be fatal (see bmo bug 461381). So on Tiger
// we hook this system call to eat (and log) all Objective-C exceptions that
// occur during its execution. Since we don't call XPCOM code from here,
// this will never cause XPCOM objects to be left on the stack without
// cleanup.
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK_RETURN;
return [self nsMenuX_NSMenu_performKeyEquivalent:theEvent];
NS_OBJC_END_TRY_LOGONLY_BLOCK_RETURN(NO);
}
@end
// This class is needed to keep track of when the OS is (re)indexing all of
// our menus. This appears to only happen on Leopard and higher, and can
// be triggered by opening the Help menu. Some operations are unsafe while
// this is happening -- notably the calls to [[NSImage alloc]
// initWithSize:imageRect.size] and [newImage lockFocus] in nsMenuItemIconX::
// OnStopFrame(). But we don't yet have a complete list, and Apple doesn't
// yet have any documentation on this subject. (Apple also doesn't yet have
// any documented way to find the information we seek here.) The "original"
// of this class (the one whose indexMenuBarDynamically method we hook) is
// defined in the Shortcut framework in /System/Library/PrivateFrameworks.
@interface NSObject (SCTGRLIndexMethodSwizzling)
- (void)nsMenuX_SCTGRLIndex_indexMenuBarDynamically;
@end
@implementation NSObject (SCTGRLIndexMethodSwizzling)
- (void)nsMenuX_SCTGRLIndex_indexMenuBarDynamically
{
// This method appears to be called (once) whenever the OS (re)indexes our
// menus. sIndexingMenuLevel is a int32_t just in case it might be
// reentered. As it's running, it spawns calls to two undocumented
// HIToolbox methods (_SimulateMenuOpening() and _SimulateMenuClosed()),
// which "simulate" the opening and closing of our menus without actually
// displaying them.
++nsMenuX::sIndexingMenuLevel;
[self nsMenuX_SCTGRLIndex_indexMenuBarDynamically];
--nsMenuX::sIndexingMenuLevel;
}
@end
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