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-rw-r--r--dom/commandhandler/nsCommandManager.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/dom/commandhandler/nsCommandManager.h b/dom/commandhandler/nsCommandManager.h
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+++ b/dom/commandhandler/nsCommandManager.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef nsCommandManager_h__
+#define nsCommandManager_h__
+
+#include "nsString.h"
+#include "nsClassHashtable.h"
+#include "nsWeakReference.h"
+
+#include "nsICommandManager.h"
+#include "nsCycleCollectionParticipant.h"
+
+class nsIController;
+template <class E>
+class nsCOMArray;
+
+class nsCommandManager final : public nsICommandManager,
+ public nsSupportsWeakReference {
+ public:
+ using ObserverList = nsTArray<nsCOMPtr<nsIObserver>>;
+
+ nsCommandManager() = delete;
+
+ /**
+ * @param aWindow An window which is what this command manager lives on.
+ */
+ explicit nsCommandManager(mozIDOMWindowProxy* aWindow);
+
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCommandManager, nsICommandManager)
+
+ NS_DECL_NSICOMMANDMANAGER
+
+ /**
+ * Notify the command manager that the status of a command changed. It may
+ * have changed from enabled to disabled, or vice versa, or become toggled
+ * etc.
+ */
+ void CommandStatusChanged(const char* aCommandName);
+
+ bool IsCommandEnabled(const nsCString& aCommandName,
+ mozIDOMWindowProxy* aTargetWindow);
+
+ protected:
+ virtual ~nsCommandManager();
+
+ nsresult GetControllerForCommand(const char* aCommand,
+ mozIDOMWindowProxy* aDirectedToThisWindow,
+ nsIController** aResult);
+
+ protected:
+ nsClassHashtable<nsCharPtrHashKey, ObserverList> mObserversTable;
+
+ mozIDOMWindowProxy* mWindow; // weak ptr. The window should always outlive us
+};
+
+nsCommandManager* nsICommandManager::AsCommandManager() {
+ return static_cast<nsCommandManager*>(this);
+}
+
+const nsCommandManager* nsICommandManager::AsCommandManager() const {
+ return static_cast<const nsCommandManager*>(this);
+}
+
+#endif // nsCommandManager_h__