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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /editor/composer/ComposerCommandsUpdater.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'editor/composer/ComposerCommandsUpdater.h')
-rw-r--r--editor/composer/ComposerCommandsUpdater.h132
1 files changed, 132 insertions, 0 deletions
diff --git a/editor/composer/ComposerCommandsUpdater.h b/editor/composer/ComposerCommandsUpdater.h
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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/. */
+
+#ifndef mozilla_ComposerCommandsUpdater_h
+#define mozilla_ComposerCommandsUpdater_h
+
+#include "nsCOMPtr.h" // for already_AddRefed, nsCOMPtr
+#include "nsCycleCollectionParticipant.h"
+#include "nsINamed.h"
+#include "nsISupportsImpl.h" // for NS_DECL_ISUPPORTS
+#include "nsITimer.h" // for NS_DECL_NSITIMERCALLBACK, etc
+#include "nscore.h" // for NS_IMETHOD, nsresult, etc
+
+class nsCommandManager;
+class nsIDocShell;
+class nsITransaction;
+class nsITransactionManager;
+class nsPIDOMWindowOuter;
+
+namespace mozilla {
+
+class TransactionManager;
+
+class ComposerCommandsUpdater final : public nsITimerCallback, public nsINamed {
+ public:
+ ComposerCommandsUpdater();
+
+ // nsISupports
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(ComposerCommandsUpdater,
+ nsITimerCallback)
+
+ // nsITimerCallback
+ NS_DECL_NSITIMERCALLBACK
+
+ // nsINamed
+ NS_DECL_NSINAMED
+
+ void Init(nsPIDOMWindowOuter& aDOMWindow);
+
+ /**
+ * OnSelectionChange() is called when selection is changed in the editor.
+ */
+ void OnSelectionChange() { PrimeUpdateTimer(); }
+
+ /**
+ * OnHTMLEditorCreated() is called when `HTMLEditor` is created and
+ * initialized.
+ */
+ MOZ_CAN_RUN_SCRIPT void OnHTMLEditorCreated() {
+ UpdateOneCommand("obs_documentCreated");
+ }
+
+ /**
+ * OnBeforeHTMLEditorDestroyed() is called when `HTMLEditor` is being
+ * destroyed.
+ */
+ MOZ_CAN_RUN_SCRIPT void OnBeforeHTMLEditorDestroyed() {
+ // cancel any outstanding update timer
+ if (mUpdateTimer) {
+ mUpdateTimer->Cancel();
+ mUpdateTimer = nullptr;
+ }
+
+ // We can't notify the command manager of this right now; it is too late in
+ // some cases and the window is already partially destructed (e.g. JS
+ // objects may be gone).
+ }
+
+ /**
+ * OnHTMLEditorDirtyStateChanged() is called when dirty state of `HTMLEditor`
+ * is changed form or to "dirty".
+ */
+ MOZ_CAN_RUN_SCRIPT void OnHTMLEditorDirtyStateChanged(bool aNowDirty) {
+ if (mDirtyState == static_cast<int8_t>(aNowDirty)) {
+ return;
+ }
+ UpdateCommandGroup(CommandGroup::Save);
+ UpdateCommandGroup(CommandGroup::Undo);
+ mDirtyState = aNowDirty;
+ }
+
+ /**
+ * The following methods are called when aTransactionManager did
+ * `DoTransaction`, `UndoTransaction` or `RedoTransaction` of a transaction
+ * instance.
+ */
+ MOZ_CAN_RUN_SCRIPT void DidDoTransaction(
+ TransactionManager& aTransactionManager);
+ MOZ_CAN_RUN_SCRIPT void DidUndoTransaction(
+ TransactionManager& aTransactionManager);
+ MOZ_CAN_RUN_SCRIPT void DidRedoTransaction(
+ TransactionManager& aTransactionManager);
+
+ protected:
+ virtual ~ComposerCommandsUpdater();
+
+ enum {
+ eStateUninitialized = -1,
+ eStateOff = 0,
+ eStateOn = 1,
+ };
+
+ bool SelectionIsCollapsed();
+ MOZ_CAN_RUN_SCRIPT nsresult UpdateOneCommand(const char* aCommand);
+ enum class CommandGroup {
+ Save,
+ Style,
+ Undo,
+ };
+ MOZ_CAN_RUN_SCRIPT void UpdateCommandGroup(CommandGroup aCommandGroup);
+
+ nsCommandManager* GetCommandManager();
+
+ nsresult PrimeUpdateTimer();
+ void TimerCallback();
+
+ nsCOMPtr<nsITimer> mUpdateTimer;
+ nsCOMPtr<nsPIDOMWindowOuter> mDOMWindow;
+ nsCOMPtr<nsIDocShell> mDocShell;
+
+ int8_t mDirtyState;
+ int8_t mSelectionCollapsed;
+ bool mFirstDoOfFirstUndo;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef mozilla_ComposerCommandsUpdater_h