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gecko-dev/widget/cocoa/nsMenuBarX.mm

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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 <objc/objc-runtime.h>
#include "nsMenuBarX.h"
#include "nsMenuX.h"
#include "nsMenuItemX.h"
#include "nsMenuUtilsX.h"
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
#include "nsCocoaWindow.h"
#include "nsChildView.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsGkAtoms.h"
#include "nsGUIEvent.h"
#include "nsObjCExceptions.h"
#include "nsHashtable.h"
#include "nsThreadUtils.h"
#include "nsIContent.h"
#include "nsIWidget.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMElement.h"
NativeMenuItemTarget* nsMenuBarX::sNativeEventTarget = nil;
nsMenuBarX* nsMenuBarX::sLastGeckoMenuBarPainted = nullptr;
NSMenu* sApplicationMenu = nil;
BOOL gSomeMenuBarPainted = NO;
// We keep references to the first quit and pref item content nodes we find, which
// will be from the hidden window. We use these when the document for the current
// window does not have a quit or pref item. We don't need strong refs here because
// these items are always strong ref'd by their owning menu bar (instance variable).
static nsIContent* sAboutItemContent = nullptr;
static nsIContent* sUpdateItemContent = nullptr;
static nsIContent* sPrefItemContent = nullptr;
static nsIContent* sQuitItemContent = nullptr;
NS_IMPL_ISUPPORTS1(nsNativeMenuServiceX, nsINativeMenuService)
NS_IMETHODIMP nsNativeMenuServiceX::CreateNativeMenuBar(nsIWidget* aParent, nsIContent* aMenuBarNode)
{
NS_ASSERTION(NS_IsMainThread(), "Attempting to create native menu bar on wrong thread!");
nsRefPtr<nsMenuBarX> mb = new nsMenuBarX();
if (!mb)
return NS_ERROR_OUT_OF_MEMORY;
return mb->Create(aParent, aMenuBarNode);
}
nsMenuBarX::nsMenuBarX()
: nsMenuGroupOwnerX(), mParentWindow(nullptr)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
mNativeMenu = [[GeckoNSMenu alloc] initWithTitle:@"MainMenuBar"];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsMenuBarX::~nsMenuBarX()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (nsMenuBarX::sLastGeckoMenuBarPainted == this)
nsMenuBarX::sLastGeckoMenuBarPainted = nullptr;
// the quit/pref items of a random window might have been used if there was no
// hidden window, thus we need to invalidate the weak references.
if (sAboutItemContent == mAboutItemContent)
sAboutItemContent = nullptr;
if (sUpdateItemContent == mUpdateItemContent)
sUpdateItemContent = nullptr;
if (sQuitItemContent == mQuitItemContent)
sQuitItemContent = nullptr;
if (sPrefItemContent == mPrefItemContent)
sPrefItemContent = nullptr;
// make sure we unregister ourselves as a content observer
UnregisterForContentChanges(mContent);
// We have to manually clear the array here because clearing causes menu items
// to call back into the menu bar to unregister themselves. We don't want to
// depend on member variable ordering to ensure that the array gets cleared
// before the registration hash table is destroyed.
mMenuArray.Clear();
[mNativeMenu release];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsresult nsMenuBarX::Create(nsIWidget* aParent, nsIContent* aContent)
{
if (!aParent || !aContent)
return NS_ERROR_INVALID_ARG;
mParentWindow = aParent;
mContent = aContent;
AquifyMenuBar();
nsresult rv = nsMenuGroupOwnerX::Create(aContent);
if (NS_FAILED(rv))
return rv;
RegisterForContentChanges(aContent, this);
ConstructNativeMenus();
// Give this to the parent window. The parent takes ownership.
static_cast<nsCocoaWindow*>(mParentWindow)->SetMenuBar(this);
return NS_OK;
}
void nsMenuBarX::ConstructNativeMenus()
{
uint32_t count = mContent->GetChildCount();
for (uint32_t i = 0; i < count; i++) {
nsIContent *menuContent = mContent->GetChildAt(i);
if (menuContent &&
menuContent->Tag() == nsGkAtoms::menu &&
menuContent->IsXUL()) {
nsMenuX* newMenu = new nsMenuX();
if (newMenu) {
nsresult rv = newMenu->Create(this, this, menuContent);
if (NS_SUCCEEDED(rv))
InsertMenuAtIndex(newMenu, GetMenuCount());
else
delete newMenu;
}
}
}
}
uint32_t nsMenuBarX::GetMenuCount()
{
return mMenuArray.Length();
}
bool nsMenuBarX::MenuContainsAppMenu()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
return ([mNativeMenu numberOfItems] > 0 &&
[[mNativeMenu itemAtIndex:0] submenu] == sApplicationMenu);
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
nsresult nsMenuBarX::InsertMenuAtIndex(nsMenuX* aMenu, uint32_t aIndex)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// If we haven't created a global Application menu yet, do it.
if (!sApplicationMenu) {
nsresult rv = NS_OK; // avoid warning about rv being unused
rv = CreateApplicationMenu(aMenu);
NS_ASSERTION(NS_SUCCEEDED(rv), "Can't create Application menu");
// Hook the new Application menu up to the menu bar.
NSMenu* mainMenu = [NSApp mainMenu];
NS_ASSERTION([mainMenu numberOfItems] > 0, "Main menu does not have any items, something is terribly wrong!");
[[mainMenu itemAtIndex:0] setSubmenu:sApplicationMenu];
}
// add menu to array that owns our menus
mMenuArray.InsertElementAt(aIndex, aMenu);
// hook up submenus
nsIContent* menuContent = aMenu->Content();
if (menuContent->GetChildCount() > 0 &&
!nsMenuUtilsX::NodeIsHiddenOrCollapsed(menuContent)) {
int insertionIndex = nsMenuUtilsX::CalculateNativeInsertionPoint(this, aMenu);
if (MenuContainsAppMenu())
insertionIndex++;
[mNativeMenu insertItem:aMenu->NativeMenuItem() atIndex:insertionIndex];
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsMenuBarX::RemoveMenuAtIndex(uint32_t aIndex)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ASSERTION(aIndex < mMenuArray.Length(), "Attempting submenu removal with bad index!");
// Our native menu and our internal menu object array might be out of sync.
// This happens, for example, when a submenu is hidden. Because of this we
// should not assume that a native submenu is hooked up.
NSMenuItem* nativeMenuItem = mMenuArray[aIndex]->NativeMenuItem();
int nativeMenuItemIndex = [mNativeMenu indexOfItem:nativeMenuItem];
if (nativeMenuItemIndex != -1)
[mNativeMenu removeItemAtIndex:nativeMenuItemIndex];
mMenuArray.RemoveElementAt(aIndex);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsMenuBarX::ObserveAttributeChanged(nsIDocument* aDocument,
nsIContent* aContent,
nsIAtom* aAttribute)
{
}
void nsMenuBarX::ObserveContentRemoved(nsIDocument* aDocument,
nsIContent* aChild,
int32_t aIndexInContainer)
{
RemoveMenuAtIndex(aIndexInContainer);
}
void nsMenuBarX::ObserveContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild)
{
nsMenuX* newMenu = new nsMenuX();
if (newMenu) {
nsresult rv = newMenu->Create(this, this, aChild);
if (NS_SUCCEEDED(rv))
InsertMenuAtIndex(newMenu, aContainer->IndexOf(aChild));
else
delete newMenu;
}
}
void nsMenuBarX::ForceUpdateNativeMenuAt(const nsAString& indexString)
{
NSString* locationString = [NSString stringWithCharacters:indexString.BeginReading() length:indexString.Length()];
NSArray* indexes = [locationString componentsSeparatedByString:@"|"];
unsigned int indexCount = [indexes count];
if (indexCount == 0)
return;
nsMenuX* currentMenu = NULL;
int targetIndex = [[indexes objectAtIndex:0] intValue];
int visible = 0;
uint32_t length = mMenuArray.Length();
// first find a menu in the menu bar
for (unsigned int i = 0; i < length; i++) {
nsMenuX* menu = mMenuArray[i];
if (!nsMenuUtilsX::NodeIsHiddenOrCollapsed(menu->Content())) {
visible++;
if (visible == (targetIndex + 1)) {
currentMenu = menu;
break;
}
}
}
if (!currentMenu)
return;
// fake open/close to cause lazy update to happen so submenus populate
currentMenu->MenuOpened();
currentMenu->MenuClosed();
// now find the correct submenu
for (unsigned int i = 1; currentMenu && i < indexCount; i++) {
targetIndex = [[indexes objectAtIndex:i] intValue];
visible = 0;
length = currentMenu->GetItemCount();
for (unsigned int j = 0; j < length; j++) {
nsMenuObjectX* targetMenu = currentMenu->GetItemAt(j);
if (!targetMenu)
return;
if (!nsMenuUtilsX::NodeIsHiddenOrCollapsed(targetMenu->Content())) {
visible++;
if (targetMenu->MenuObjectType() == eSubmenuObjectType && visible == (targetIndex + 1)) {
currentMenu = static_cast<nsMenuX*>(targetMenu);
// fake open/close to cause lazy update to happen
currentMenu->MenuOpened();
currentMenu->MenuClosed();
break;
}
}
}
}
}
// Calling this forces a full reload of the menu system, reloading all native
// menus and their items.
// Without this testing is hard because changes to the DOM affect the native
// menu system lazily.
void nsMenuBarX::ForceNativeMenuReload()
{
// tear down everything
while (GetMenuCount() > 0)
RemoveMenuAtIndex(0);
// construct everything
ConstructNativeMenus();
}
nsMenuX* nsMenuBarX::GetMenuAt(uint32_t aIndex)
{
if (mMenuArray.Length() <= aIndex) {
NS_ERROR("Requesting menu at invalid index!");
return NULL;
}
return mMenuArray[aIndex];
}
nsMenuX* nsMenuBarX::GetXULHelpMenu()
{
// The Help menu is usually (always?) the last one, so we start there and
// count back.
for (int32_t i = GetMenuCount() - 1; i >= 0; --i) {
nsMenuX* aMenu = GetMenuAt(i);
if (aMenu && nsMenuX::IsXULHelpMenu(aMenu->Content()))
return aMenu;
}
return nil;
}
// On SnowLeopard and later we must tell the OS which is our Help menu.
// Otherwise it will only add Spotlight for Help (the Search item) to our
// Help menu if its label/title is "Help" -- i.e. if the menu is in English.
// This resolves bugs 489196 and 539317.
void nsMenuBarX::SetSystemHelpMenu()
{
nsMenuX* xulHelpMenu = GetXULHelpMenu();
if (xulHelpMenu) {
NSMenu* helpMenu = (NSMenu*)xulHelpMenu->NativeData();
if (helpMenu)
[NSApp setHelpMenu:helpMenu];
}
}
nsresult nsMenuBarX::Paint()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Don't try to optimize anything in this painting by checking
// sLastGeckoMenuBarPainted because the menubar can be manipulated by
// native dialogs and sheet code and other things besides this paint method.
// We have to keep the same menu item for the Application menu so we keep
// passing it along.
NSMenu* outgoingMenu = [NSApp mainMenu];
NS_ASSERTION([outgoingMenu numberOfItems] > 0, "Main menu does not have any items, something is terribly wrong!");
NSMenuItem* appMenuItem = [[outgoingMenu itemAtIndex:0] retain];
[outgoingMenu removeItemAtIndex:0];
[mNativeMenu insertItem:appMenuItem atIndex:0];
[appMenuItem release];
// Set menu bar and event target.
[NSApp setMainMenu:mNativeMenu];
SetSystemHelpMenu();
nsMenuBarX::sLastGeckoMenuBarPainted = this;
gSomeMenuBarPainted = YES;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Returns the 'key' attribute of the 'shortcutID' object (if any) in the
// currently active menubar's DOM document. 'shortcutID' should be the id
// (i.e. the name) of a component that defines a commonly used (and
// localized) cmd+key shortcut, and belongs to a keyset containing similar
// objects. For example "key_selectAll". Returns a value that can be
// compared to the first character of [NSEvent charactersIgnoringModifiers]
// when [NSEvent modifierFlags] == NSCommandKeyMask.
char nsMenuBarX::GetLocalizedAccelKey(const char *shortcutID)
{
if (!sLastGeckoMenuBarPainted)
return 0;
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(sLastGeckoMenuBarPainted->mDocument));
if (!domDoc)
return 0;
NS_ConvertASCIItoUTF16 shortcutIDStr((const char *)shortcutID);
nsCOMPtr<nsIDOMElement> shortcutElement;
domDoc->GetElementById(shortcutIDStr, getter_AddRefs(shortcutElement));
nsCOMPtr<nsIContent> shortcutContent = do_QueryInterface(shortcutElement);
if (!shortcutContent)
return 0;
nsAutoString key;
shortcutContent->GetAttr(kNameSpaceID_None, nsGkAtoms::key, key);
NS_LossyConvertUTF16toASCII keyASC(key.get());
const char *keyASCPtr = keyASC.get();
if (!keyASCPtr)
return 0;
// If keyID's 'key' attribute isn't exactly one character long, it's not
// what we're looking for.
if (strlen(keyASCPtr) != sizeof(char))
return 0;
// Make sure retval is lower case.
char retval = tolower(keyASCPtr[0]);
return retval;
}
// Hide the item in the menu by setting the 'hidden' attribute. Returns it in |outHiddenNode| so
// the caller can hang onto it if they so choose. It is acceptable to pass nsull
// for |outHiddenNode| if the caller doesn't care about the hidden node.
void nsMenuBarX::HideItem(nsIDOMDocument* inDoc, const nsAString & inID, nsIContent** outHiddenNode)
{
nsCOMPtr<nsIDOMElement> menuItem;
inDoc->GetElementById(inID, getter_AddRefs(menuItem));
nsCOMPtr<nsIContent> menuContent(do_QueryInterface(menuItem));
if (menuContent) {
menuContent->SetAttr(kNameSpaceID_None, nsGkAtoms::hidden, NS_LITERAL_STRING("true"), false);
if (outHiddenNode) {
*outHiddenNode = menuContent.get();
NS_IF_ADDREF(*outHiddenNode);
}
}
}
// Do what is necessary to conform to the Aqua guidelines for menus.
void nsMenuBarX::AquifyMenuBar()
{
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(mContent->GetDocument()));
if (domDoc) {
// remove the "About..." item and its separator
HideItem(domDoc, NS_LITERAL_STRING("aboutSeparator"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("aboutName"), getter_AddRefs(mAboutItemContent));
if (!sAboutItemContent)
sAboutItemContent = mAboutItemContent;
// Hide the software update menu item, since it belongs in the application
// menu on Mac OS X.
HideItem(domDoc, NS_LITERAL_STRING("updateSeparator"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("checkForUpdates"), getter_AddRefs(mUpdateItemContent));
if (!sUpdateItemContent)
sUpdateItemContent = mUpdateItemContent;
// remove quit item and its separator
HideItem(domDoc, NS_LITERAL_STRING("menu_FileQuitSeparator"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("menu_FileQuitItem"), getter_AddRefs(mQuitItemContent));
if (!sQuitItemContent)
sQuitItemContent = mQuitItemContent;
// remove prefs item and its separator, but save off the pref content node
// so we can invoke its command later.
HideItem(domDoc, NS_LITERAL_STRING("menu_PrefsSeparator"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("menu_preferences"), getter_AddRefs(mPrefItemContent));
if (!sPrefItemContent)
sPrefItemContent = mPrefItemContent;
// hide items that we use for the Application menu
HideItem(domDoc, NS_LITERAL_STRING("menu_mac_services"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("menu_mac_hide_app"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("menu_mac_hide_others"), nullptr);
HideItem(domDoc, NS_LITERAL_STRING("menu_mac_show_all"), nullptr);
}
}
// for creating menu items destined for the Application menu
NSMenuItem* nsMenuBarX::CreateNativeAppMenuItem(nsMenuX* inMenu, const nsAString& nodeID, SEL action,
int tag, NativeMenuItemTarget* target)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
nsCOMPtr<nsIDocument> doc = inMenu->Content()->GetDocument();
if (!doc)
return nil;
nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(doc));
if (!domdoc)
return nil;
// Get information from the gecko menu item
nsAutoString label;
nsAutoString modifiers;
nsAutoString key;
nsCOMPtr<nsIDOMElement> menuItem;
domdoc->GetElementById(nodeID, getter_AddRefs(menuItem));
if (menuItem) {
menuItem->GetAttribute(NS_LITERAL_STRING("label"), label);
menuItem->GetAttribute(NS_LITERAL_STRING("modifiers"), modifiers);
menuItem->GetAttribute(NS_LITERAL_STRING("key"), key);
}
else {
return nil;
}
// Get more information about the key equivalent. Start by
// finding the key node we need.
NSString* keyEquiv = nil;
unsigned int macKeyModifiers = 0;
if (!key.IsEmpty()) {
nsCOMPtr<nsIDOMElement> keyElement;
domdoc->GetElementById(key, getter_AddRefs(keyElement));
if (keyElement) {
nsCOMPtr<nsIContent> keyContent (do_QueryInterface(keyElement));
// first grab the key equivalent character
nsAutoString keyChar(NS_LITERAL_STRING(" "));
keyContent->GetAttr(kNameSpaceID_None, nsGkAtoms::key, keyChar);
if (!keyChar.EqualsLiteral(" ")) {
keyEquiv = [[NSString stringWithCharacters:keyChar.get() length:keyChar.Length()] lowercaseString];
}
// now grab the key equivalent modifiers
nsAutoString modifiersStr;
keyContent->GetAttr(kNameSpaceID_None, nsGkAtoms::modifiers, modifiersStr);
uint8_t geckoModifiers = nsMenuUtilsX::GeckoModifiersForNodeAttribute(modifiersStr);
macKeyModifiers = nsMenuUtilsX::MacModifiersForGeckoModifiers(geckoModifiers);
}
}
// get the label into NSString-form
NSString* labelString = [NSString stringWithCharacters:label.get() length:label.Length()];
if (!labelString)
labelString = @"";
if (!keyEquiv)
keyEquiv = @"";
// put together the actual NSMenuItem
NSMenuItem* newMenuItem = [[NSMenuItem alloc] initWithTitle:labelString action:action keyEquivalent:keyEquiv];
[newMenuItem setTag:tag];
[newMenuItem setTarget:target];
[newMenuItem setKeyEquivalentModifierMask:macKeyModifiers];
MenuItemInfo * info = [[MenuItemInfo alloc] initWithMenuGroupOwner:this];
[newMenuItem setRepresentedObject:info];
[info release];
return newMenuItem;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
// build the Application menu shared by all menu bars
nsresult nsMenuBarX::CreateApplicationMenu(nsMenuX* inMenu)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// At this point, the application menu is the application menu from
// the nib in cocoa widgets. We do not have a way to create an application
// menu manually, so we grab the one from the nib and use that.
sApplicationMenu = [[[[NSApp mainMenu] itemAtIndex:0] submenu] retain];
/*
We support the following menu items here:
Menu Item DOM Node ID Notes
========================
= About This App = <- aboutName
= Check for Updates... = <- checkForUpdates
========================
= Preferences... = <- menu_preferences
========================
= Services > = <- menu_mac_services <- (do not define key equivalent)
========================
= Hide App = <- menu_mac_hide_app
= Hide Others = <- menu_mac_hide_others
= Show All = <- menu_mac_show_all
========================
= Quit = <- menu_FileQuitItem
========================
If any of them are ommitted from the application's DOM, we just don't add
them. We always add a "Quit" item, but if an app developer does not provide a
DOM node with the right ID for the Quit item, we add it in English. App
developers need only add each node with a label and a key equivalent (if they
want one). Other attributes are optional. Like so:
<menuitem id="menu_preferences"
label="&preferencesCmdMac.label;"
key="open_prefs_key"/>
We need to use this system for localization purposes, until we have a better way
to define the Application menu to be used on Mac OS X.
*/
if (sApplicationMenu) {
// This code reads attributes we are going to care about from the DOM elements
NSMenuItem *itemBeingAdded = nil;
BOOL addAboutSeparator = FALSE;
// Add the About menu item
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("aboutName"), @selector(menuItemHit:),
eCommand_ID_About, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
addAboutSeparator = TRUE;
}
// Add the software update menu item
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("checkForUpdates"), @selector(menuItemHit:),
eCommand_ID_Update, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
addAboutSeparator = TRUE;
}
// Add separator if either the About item or software update item exists
if (addAboutSeparator)
[sApplicationMenu addItem:[NSMenuItem separatorItem]];
// Add the Preferences menu item
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_preferences"), @selector(menuItemHit:),
eCommand_ID_Prefs, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
// Add separator after Preferences menu
[sApplicationMenu addItem:[NSMenuItem separatorItem]];
}
// Add Services menu item
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_mac_services"), nil,
0, nil);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
// set this menu item up as the Mac OS X Services menu
NSMenu* servicesMenu = [[GeckoServicesNSMenu alloc] initWithTitle:@""];
[itemBeingAdded setSubmenu:servicesMenu];
[NSApp setServicesMenu:servicesMenu];
[itemBeingAdded release];
itemBeingAdded = nil;
// Add separator after Services menu
[sApplicationMenu addItem:[NSMenuItem separatorItem]];
}
BOOL addHideShowSeparator = FALSE;
// Add menu item to hide this application
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_mac_hide_app"), @selector(menuItemHit:),
eCommand_ID_HideApp, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
addHideShowSeparator = TRUE;
}
// Add menu item to hide other applications
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_mac_hide_others"), @selector(menuItemHit:),
eCommand_ID_HideOthers, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
addHideShowSeparator = TRUE;
}
// Add menu item to show all applications
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_mac_show_all"), @selector(menuItemHit:),
eCommand_ID_ShowAll, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
addHideShowSeparator = TRUE;
}
// Add a separator after the hide/show menus if at least one exists
if (addHideShowSeparator)
[sApplicationMenu addItem:[NSMenuItem separatorItem]];
// Add quit menu item
itemBeingAdded = CreateNativeAppMenuItem(inMenu, NS_LITERAL_STRING("menu_FileQuitItem"), @selector(menuItemHit:),
eCommand_ID_Quit, nsMenuBarX::sNativeEventTarget);
if (itemBeingAdded) {
[sApplicationMenu addItem:itemBeingAdded];
[itemBeingAdded release];
itemBeingAdded = nil;
}
else {
// the current application does not have a DOM node for "Quit". Add one
// anyway, in English.
NSMenuItem* defaultQuitItem = [[[NSMenuItem alloc] initWithTitle:@"Quit" action:@selector(menuItemHit:)
keyEquivalent:@"q"] autorelease];
[defaultQuitItem setTarget:nsMenuBarX::sNativeEventTarget];
[defaultQuitItem setTag:eCommand_ID_Quit];
[sApplicationMenu addItem:defaultQuitItem];
}
}
return (sApplicationMenu) ? NS_OK : NS_ERROR_FAILURE;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsMenuBarX::SetParent(nsIWidget* aParent)
{
mParentWindow = aParent;
}
//
// Objective-C class used to allow us to have keyboard commands
// look like they are doing something but actually do nothing.
// We allow mouse actions to work normally.
//
// Controls whether or not native menu items should invoke their commands.
static BOOL gMenuItemsExecuteCommands = YES;
@implementation GeckoNSMenu
// Keyboard commands should not cause menu items to invoke their
// commands when there is a key window because we'd rather send
// the keyboard command to the window. We still have the menus
// go through the mechanics so they'll give the proper visual
// feedback.
- (BOOL)performKeyEquivalent:(NSEvent *)theEvent
{
// We've noticed that Mac OS X expects this check in subclasses before
// calling NSMenu's "performKeyEquivalent:".
//
// There is no case in which we'd need to do anything or return YES
// when we have no items so we can just do this check first.
if ([self numberOfItems] <= 0) {
return NO;
}
NSWindow *keyWindow = [NSApp keyWindow];
// If there is no key window then just behave normally. This
// probably means that this menu is associated with Gecko's
// hidden window.
if (!keyWindow) {
return [super performKeyEquivalent:theEvent];
}
// Plugins normally eat all keyboard commands, this hack mitigates
// the problem.
BOOL handleForPluginHack = NO;
NSResponder *firstResponder = [keyWindow firstResponder];
if (firstResponder &&
[firstResponder isKindOfClass:[ChildView class]] &&
[(ChildView*)firstResponder isPluginView]) {
handleForPluginHack = YES;
// Maintain a list of cmd+key combinations that we never act on (in the
// browser) when the keyboard focus is in a plugin. What a particular
// cmd+key combo means here (to the browser) is governed by browser.dtd,
// which "contains the browser main menu items".
UInt32 modifierFlags = [theEvent modifierFlags] & NSDeviceIndependentModifierFlagsMask;
if (modifierFlags == NSCommandKeyMask) {
NSString *unmodchars = [theEvent charactersIgnoringModifiers];
if ([unmodchars length] == 1) {
if ([unmodchars characterAtIndex:0] == nsMenuBarX::GetLocalizedAccelKey("key_selectAll")) {
handleForPluginHack = NO;
}
}
}
}
gMenuItemsExecuteCommands = handleForPluginHack;
[super performKeyEquivalent:theEvent];
gMenuItemsExecuteCommands = YES; // return to default
// Return YES if we invoked a command and there is now no key window or we changed
// the first responder. In this case we do not want to propagate the event because
// we don't want it handled again.
if (handleForPluginHack) {
if (![NSApp keyWindow] || [[NSApp keyWindow] firstResponder] != firstResponder) {
return YES;
}
}
// Return NO so that we can handle the event via NSView's "keyDown:".
return NO;
}
@end
//
// Objective-C class used as action target for menu items
//
@implementation NativeMenuItemTarget
// called when some menu item in this menu gets hit
-(IBAction)menuItemHit:(id)sender
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// menuGroupOwner below is an nsMenuBarX object, which we sometimes access
// after it's been deleted, causing crashes (see bug 704866 and bug 670914).
// To fix this "correctly", in nsMenuBarX::~nsMenuBarX() we'd need to
// iterate through every NSMenuItem in nsMenuBarX::mNativeMenu and its
// submenus, which might be quite time consuming. (For every NSMenuItem
// that has a "representedObject" that's a MenuItemInfo object, we'd need
// need to null out its "menuGroupOwner" if it's the same as the nsMenuBarX
// object being destroyed.) But if the nsMenuBarX object being destroyed
// corresponds to the currently focused window, it's likely that the
// nsMenuBarX destructor will null out sLastGeckoMenuBarPainted. So we can
// probably eliminate most of these crashes if we use this variable being
// null as an indicator that we're likely to crash below when we dereference
// menuGroupOwner.
if (!nsMenuBarX::sLastGeckoMenuBarPainted) {
return;
}
if (!gMenuItemsExecuteCommands) {
return;
}
int tag = [sender tag];
MenuItemInfo* info = [sender representedObject];
if (!info)
return;
nsMenuGroupOwnerX* menuGroupOwner = [info menuGroupOwner];
if (!menuGroupOwner)
return;
nsMenuBarX* menuBar = nullptr;
if (menuGroupOwner->MenuObjectType() == eMenuBarObjectType)
menuBar = static_cast<nsMenuBarX*>(menuGroupOwner);
// Do special processing if this is for an app-global command.
if (tag == eCommand_ID_About) {
nsIContent* mostSpecificContent = sAboutItemContent;
if (menuBar && menuBar->mAboutItemContent)
mostSpecificContent = menuBar->mAboutItemContent;
nsMenuUtilsX::DispatchCommandTo(mostSpecificContent);
return;
}
else if (tag == eCommand_ID_Update) {
nsIContent* mostSpecificContent = sUpdateItemContent;
if (menuBar && menuBar->mUpdateItemContent)
mostSpecificContent = menuBar->mUpdateItemContent;
nsMenuUtilsX::DispatchCommandTo(mostSpecificContent);
}
else if (tag == eCommand_ID_Prefs) {
nsIContent* mostSpecificContent = sPrefItemContent;
if (menuBar && menuBar->mPrefItemContent)
mostSpecificContent = menuBar->mPrefItemContent;
nsMenuUtilsX::DispatchCommandTo(mostSpecificContent);
return;
}
else if (tag == eCommand_ID_HideApp) {
[NSApp hide:sender];
return;
}
else if (tag == eCommand_ID_HideOthers) {
[NSApp hideOtherApplications:sender];
return;
}
else if (tag == eCommand_ID_ShowAll) {
[NSApp unhideAllApplications:sender];
return;
}
else if (tag == eCommand_ID_Quit) {
nsIContent* mostSpecificContent = sQuitItemContent;
if (menuBar && menuBar->mQuitItemContent)
mostSpecificContent = menuBar->mQuitItemContent;
// If we have some content for quit we execute it. Otherwise we send a native app terminate
// message. If you want to stop a quit from happening, provide quit content and return
// the event as unhandled.
if (mostSpecificContent) {
nsMenuUtilsX::DispatchCommandTo(mostSpecificContent);
}
else {
[NSApp terminate:nil];
}
return;
}
// given the commandID, look it up in our hashtable and dispatch to
// that menu item.
if (menuGroupOwner) {
nsMenuItemX* menuItem = menuGroupOwner->GetMenuItemForCommandID(static_cast<uint32_t>(tag));
if (menuItem)
menuItem->DoCommand();
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
@end
// Objective-C class used for menu items on the Services menu to allow Gecko
// to override their standard behavior in order to stop key equivalents from
// firing in certain instances. When gMenuItemsExecuteCommands is NO, we return
// a dummy target and action instead of the actual target and action.
@implementation GeckoServicesNSMenuItem
- (id) target
{
id realTarget = [super target];
if (gMenuItemsExecuteCommands)
return realTarget;
else
return realTarget ? self : nil;
}
- (SEL) action
{
SEL realAction = [super action];
if (gMenuItemsExecuteCommands)
return realAction;
else
return realAction ? @selector(_doNothing:) : NULL;
}
- (void) _doNothing:(id)sender
{
}
@end
// Objective-C class used as the Services menu so that Gecko can override the
// standard behavior of the Services menu in order to stop key equivalents
// from firing in certain instances.
@implementation GeckoServicesNSMenu
- (void)addItem:(NSMenuItem *)newItem
{
[self _overrideClassOfMenuItem:newItem];
[super addItem:newItem];
}
- (NSMenuItem *)addItemWithTitle:(NSString *)aString action:(SEL)aSelector keyEquivalent:(NSString *)keyEquiv
{
NSMenuItem * newItem = [super addItemWithTitle:aString action:aSelector keyEquivalent:keyEquiv];
[self _overrideClassOfMenuItem:newItem];
return newItem;
}
- (void)insertItem:(NSMenuItem *)newItem atIndex:(NSInteger)index
{
[self _overrideClassOfMenuItem:newItem];
[super insertItem:newItem atIndex:index];
}
- (NSMenuItem *)insertItemWithTitle:(NSString *)aString action:(SEL)aSelector keyEquivalent:(NSString *)keyEquiv atIndex:(NSInteger)index
{
NSMenuItem * newItem = [super insertItemWithTitle:aString action:aSelector keyEquivalent:keyEquiv atIndex:index];
[self _overrideClassOfMenuItem:newItem];
return newItem;
}
- (void) _overrideClassOfMenuItem:(NSMenuItem *)menuItem
{
if ([menuItem class] == [NSMenuItem class])
object_setClass(menuItem, [GeckoServicesNSMenuItem class]);
}
@end
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