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-rw-r--r--widget/cocoa/nsMenuGroupOwnerX.mm238
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diff --git a/widget/cocoa/nsMenuGroupOwnerX.mm b/widget/cocoa/nsMenuGroupOwnerX.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 "nsMenuGroupOwnerX.h"
+#include "nsMenuBarX.h"
+#include "nsMenuX.h"
+#include "nsMenuItemX.h"
+#include "nsMenuUtilsX.h"
+#include "nsCocoaUtils.h"
+#include "nsCocoaWindow.h"
+
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsObjCExceptions.h"
+#include "nsThreadUtils.h"
+
+#include "mozilla/dom/Element.h"
+#include "nsIWidget.h"
+#include "mozilla/dom/Document.h"
+
+#include "nsINode.h"
+
+using namespace mozilla;
+
+NS_IMPL_ISUPPORTS(nsMenuGroupOwnerX, nsIObserver, nsIMutationObserver)
+
+nsMenuGroupOwnerX::nsMenuGroupOwnerX(mozilla::dom::Element* aElement,
+ nsMenuBarX* aMenuBarIfMenuBar)
+ : mContent(aElement), mMenuBar(aMenuBarIfMenuBar) {
+ mRepresentedObject =
+ [[MOZMenuItemRepresentedObject alloc] initWithMenuGroupOwner:this];
+}
+
+nsMenuGroupOwnerX::~nsMenuGroupOwnerX() {
+ MOZ_ASSERT(mContentToObserverTable.Count() == 0,
+ "have outstanding mutation observers!\n");
+ [mRepresentedObject setMenuGroupOwner:nullptr];
+ [mRepresentedObject release];
+}
+
+//
+// nsIMutationObserver
+//
+
+void nsMenuGroupOwnerX::CharacterDataWillChange(
+ nsIContent* aContent, const CharacterDataChangeInfo&) {}
+
+void nsMenuGroupOwnerX::CharacterDataChanged(nsIContent* aContent,
+ const CharacterDataChangeInfo&) {}
+
+void nsMenuGroupOwnerX::ContentAppended(nsIContent* aFirstNewContent) {
+ for (nsIContent* cur = aFirstNewContent; cur; cur = cur->GetNextSibling()) {
+ ContentInserted(cur);
+ }
+}
+
+void nsMenuGroupOwnerX::NodeWillBeDestroyed(nsINode* aNode) {}
+
+void nsMenuGroupOwnerX::AttributeWillChange(dom::Element* aElement,
+ int32_t aNameSpaceID,
+ nsAtom* aAttribute,
+ int32_t aModType) {}
+
+void nsMenuGroupOwnerX::AttributeChanged(dom::Element* aElement,
+ int32_t aNameSpaceID,
+ nsAtom* aAttribute, int32_t aModType,
+ const nsAttrValue* aOldValue) {
+ nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
+ nsChangeObserver* obs = LookupContentChangeObserver(aElement);
+ if (obs) {
+ obs->ObserveAttributeChanged(aElement->OwnerDoc(), aElement, aAttribute);
+ }
+}
+
+void nsMenuGroupOwnerX::ContentRemoved(nsIContent* aChild,
+ nsIContent* aPreviousSibling) {
+ nsIContent* container = aChild->GetParent();
+ if (!container) {
+ return;
+ }
+
+ nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
+ nsChangeObserver* obs = LookupContentChangeObserver(container);
+ if (obs) {
+ obs->ObserveContentRemoved(aChild->OwnerDoc(), container, aChild,
+ aPreviousSibling);
+ } else if (container != mContent) {
+ // We do a lookup on the parent container in case things were removed
+ // under a "menupopup" item. That is basically a wrapper for the contents
+ // of a "menu" node.
+ nsCOMPtr<nsIContent> parent = container->GetParent();
+ if (parent) {
+ obs = LookupContentChangeObserver(parent);
+ if (obs) {
+ obs->ObserveContentRemoved(aChild->OwnerDoc(), container, aChild,
+ aPreviousSibling);
+ }
+ }
+ }
+}
+
+void nsMenuGroupOwnerX::ContentInserted(nsIContent* aChild) {
+ nsIContent* container = aChild->GetParent();
+ if (!container) {
+ return;
+ }
+
+ nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
+ nsChangeObserver* obs = LookupContentChangeObserver(container);
+ if (obs) {
+ obs->ObserveContentInserted(aChild->OwnerDoc(), container, aChild);
+ } else if (container != mContent) {
+ // We do a lookup on the parent container in case things were removed
+ // under a "menupopup" item. That is basically a wrapper for the contents
+ // of a "menu" node.
+ nsCOMPtr<nsIContent> parent = container->GetParent();
+ if (parent) {
+ obs = LookupContentChangeObserver(parent);
+ if (obs) {
+ obs->ObserveContentInserted(aChild->OwnerDoc(), container, aChild);
+ }
+ }
+ }
+}
+
+void nsMenuGroupOwnerX::ParentChainChanged(nsIContent* aContent) {}
+
+void nsMenuGroupOwnerX::ARIAAttributeDefaultWillChange(
+ mozilla::dom::Element* aElement, nsAtom* aAttribute, int32_t aModType) {}
+
+void nsMenuGroupOwnerX::ARIAAttributeDefaultChanged(
+ mozilla::dom::Element* aElement, nsAtom* aAttribute, int32_t aModType) {}
+
+// For change management, we don't use a |nsSupportsHashtable| because
+// we know that the lifetime of all these items is bounded by the
+// lifetime of the menubar. No need to add any more strong refs to the
+// picture because the containment hierarchy already uses strong refs.
+void nsMenuGroupOwnerX::RegisterForContentChanges(
+ nsIContent* aContent, nsChangeObserver* aMenuObject) {
+ if (!mContentToObserverTable.Contains(aContent)) {
+ aContent->AddMutationObserver(this);
+ }
+ mContentToObserverTable.InsertOrUpdate(aContent, aMenuObject);
+}
+
+void nsMenuGroupOwnerX::UnregisterForContentChanges(nsIContent* aContent) {
+ if (mContentToObserverTable.Contains(aContent)) {
+ aContent->RemoveMutationObserver(this);
+ }
+ mContentToObserverTable.Remove(aContent);
+}
+
+void nsMenuGroupOwnerX::RegisterForLocaleChanges() {
+ nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+ if (obs) {
+ obs->AddObserver(this, "intl:app-locales-changed", false);
+ }
+}
+
+void nsMenuGroupOwnerX::UnregisterForLocaleChanges() {
+ nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+ if (obs) {
+ obs->RemoveObserver(this, "intl:app-locales-changed");
+ }
+}
+
+NS_IMETHODIMP
+nsMenuGroupOwnerX::Observe(nsISupports* aSubject, const char* aTopic,
+ const char16_t* aData) {
+ if (mMenuBar && !strcmp(aTopic, "intl:app-locales-changed")) {
+ // Rebuild the menu with the new locale strings.
+ mMenuBar->SetNeedsRebuild();
+ }
+ return NS_OK;
+}
+
+nsChangeObserver* nsMenuGroupOwnerX::LookupContentChangeObserver(
+ nsIContent* aContent) {
+ nsChangeObserver* result;
+ if (mContentToObserverTable.Get(aContent, &result)) {
+ return result;
+ }
+ return nullptr;
+}
+
+// Given a menu item, creates a unique 4-character command ID and
+// maps it to the item. Returns the id for use by the client.
+uint32_t nsMenuGroupOwnerX::RegisterForCommand(nsMenuItemX* aMenuItem) {
+ // no real need to check for uniqueness. We always start afresh with each
+ // window at 1. Even if we did get close to the reserved Apple command id's,
+ // those don't start until at least ' ', which is integer 538976288. If
+ // we have that many menu items in one window, I think we have other
+ // problems.
+
+ // make id unique
+ ++mCurrentCommandID;
+
+ mCommandToMenuObjectTable.InsertOrUpdate(mCurrentCommandID, aMenuItem);
+
+ return mCurrentCommandID;
+}
+
+// Removes the mapping between the given 4-character command ID
+// and its associated menu item.
+void nsMenuGroupOwnerX::UnregisterCommand(uint32_t aCommandID) {
+ mCommandToMenuObjectTable.Remove(aCommandID);
+}
+
+nsMenuItemX* nsMenuGroupOwnerX::GetMenuItemForCommandID(uint32_t aCommandID) {
+ nsMenuItemX* result;
+ if (mCommandToMenuObjectTable.Get(aCommandID, &result)) {
+ return result;
+ }
+ return nullptr;
+}
+
+@implementation MOZMenuItemRepresentedObject {
+ nsMenuGroupOwnerX*
+ mMenuGroupOwner; // weak, cleared by nsMenuGroupOwnerX's destructor
+}
+
+- (id)initWithMenuGroupOwner:(nsMenuGroupOwnerX*)aMenuGroupOwner {
+ self = [super init];
+ mMenuGroupOwner = aMenuGroupOwner;
+ return self;
+}
+
+- (void)setMenuGroupOwner:(nsMenuGroupOwnerX*)aMenuGroupOwner {
+ mMenuGroupOwner = aMenuGroupOwner;
+}
+
+- (nsMenuGroupOwnerX*)menuGroupOwner {
+ return mMenuGroupOwner;
+}
+
+@end