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-rw-r--r--dom/commandhandler/nsBaseCommandController.cpp203
1 files changed, 203 insertions, 0 deletions
diff --git a/dom/commandhandler/nsBaseCommandController.cpp b/dom/commandhandler/nsBaseCommandController.cpp
new file mode 100644
index 0000000000..2d8eadb13f
--- /dev/null
+++ b/dom/commandhandler/nsBaseCommandController.cpp
@@ -0,0 +1,203 @@
+/* -*- 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/. */
+
+#include "nsString.h"
+#include "nsIWeakReferenceUtils.h"
+#include "nsBaseCommandController.h"
+#include "nsControllerCommandTable.h"
+
+NS_IMPL_ADDREF(nsBaseCommandController)
+NS_IMPL_RELEASE(nsBaseCommandController)
+
+NS_INTERFACE_MAP_BEGIN(nsBaseCommandController)
+ NS_INTERFACE_MAP_ENTRY(nsIController)
+ NS_INTERFACE_MAP_ENTRY(nsICommandController)
+ NS_INTERFACE_MAP_ENTRY(nsIControllerContext)
+ NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIControllerContext)
+NS_INTERFACE_MAP_END
+
+nsBaseCommandController::nsBaseCommandController(
+ nsControllerCommandTable* aControllerCommandTable)
+ : mCommandContextRawPtr(nullptr), mCommandTable(aControllerCommandTable) {}
+
+nsBaseCommandController::~nsBaseCommandController() = default;
+
+NS_IMETHODIMP
+nsBaseCommandController::SetCommandContext(nsISupports* aCommandContext) {
+ mCommandContextWeakPtr = nullptr;
+ mCommandContextRawPtr = nullptr;
+
+ if (aCommandContext) {
+ nsCOMPtr<nsISupportsWeakReference> weak =
+ do_QueryInterface(aCommandContext);
+ if (weak) {
+ nsresult rv =
+ weak->GetWeakReference(getter_AddRefs(mCommandContextWeakPtr));
+ NS_ENSURE_SUCCESS(rv, rv);
+ } else {
+ mCommandContextRawPtr = aCommandContext;
+ }
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::GetInterface(const nsIID& aIID, void** aResult) {
+ NS_ENSURE_ARG_POINTER(aResult);
+
+ if (NS_SUCCEEDED(QueryInterface(aIID, aResult))) {
+ return NS_OK;
+ }
+
+ if (aIID.Equals(NS_GET_IID(nsIControllerCommandTable))) {
+ if (mCommandTable) {
+ *aResult =
+ do_AddRef(static_cast<nsIControllerCommandTable*>(mCommandTable))
+ .take();
+ return NS_OK;
+ }
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ return NS_NOINTERFACE;
+}
+
+/* =======================================================================
+ * nsIController
+ * ======================================================================= */
+
+NS_IMETHODIMP
+nsBaseCommandController::IsCommandEnabled(const char* aCommand, bool* aResult) {
+ NS_ENSURE_ARG_POINTER(aCommand);
+ NS_ENSURE_ARG_POINTER(aResult);
+ NS_ENSURE_STATE(mCommandTable);
+
+ nsISupports* context = mCommandContextRawPtr;
+ nsCOMPtr<nsISupports> weak;
+ if (!context) {
+ weak = do_QueryReferent(mCommandContextWeakPtr);
+ context = weak;
+ }
+ return mCommandTable->IsCommandEnabled(aCommand, context, aResult);
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::SupportsCommand(const char* aCommand, bool* aResult) {
+ NS_ENSURE_ARG_POINTER(aCommand);
+ NS_ENSURE_ARG_POINTER(aResult);
+ NS_ENSURE_STATE(mCommandTable);
+
+ nsISupports* context = mCommandContextRawPtr;
+ nsCOMPtr<nsISupports> weak;
+ if (!context) {
+ weak = do_QueryReferent(mCommandContextWeakPtr);
+ context = weak;
+ }
+ return mCommandTable->SupportsCommand(aCommand, context, aResult);
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::DoCommand(const char* aCommand) {
+ NS_ENSURE_ARG_POINTER(aCommand);
+ NS_ENSURE_STATE(mCommandTable);
+
+ nsCOMPtr<nsISupports> context = mCommandContextRawPtr;
+ if (!context) {
+ context = do_QueryReferent(mCommandContextWeakPtr);
+ }
+ RefPtr<nsControllerCommandTable> commandTable(mCommandTable);
+ return commandTable->DoCommand(aCommand, context);
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::DoCommandWithParams(const char* aCommand,
+ nsICommandParams* aParams) {
+ NS_ENSURE_ARG_POINTER(aCommand);
+ NS_ENSURE_STATE(mCommandTable);
+
+ nsCOMPtr<nsISupports> context = mCommandContextRawPtr;
+ if (!context) {
+ context = do_QueryReferent(mCommandContextWeakPtr);
+ }
+ RefPtr<nsControllerCommandTable> commandTable(mCommandTable);
+ return commandTable->DoCommandParams(aCommand, aParams, context);
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::GetCommandStateWithParams(const char* aCommand,
+ nsICommandParams* aParams) {
+ NS_ENSURE_ARG_POINTER(aCommand);
+ NS_ENSURE_STATE(mCommandTable);
+
+ nsISupports* context = mCommandContextRawPtr;
+ nsCOMPtr<nsISupports> weak;
+ if (!context) {
+ weak = do_QueryReferent(mCommandContextWeakPtr);
+ context = weak;
+ }
+ return mCommandTable->GetCommandState(aCommand, aParams, context);
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::OnEvent(const char* aEventName) {
+ NS_ENSURE_ARG_POINTER(aEventName);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseCommandController::GetSupportedCommands(nsTArray<nsCString>& aCommands) {
+ NS_ENSURE_STATE(mCommandTable);
+ return mCommandTable->GetSupportedCommands(aCommands);
+}
+
+using CommandTableCreatorFn = already_AddRefed<nsControllerCommandTable> (*)();
+
+static already_AddRefed<nsBaseCommandController>
+CreateControllerWithSingletonCommandTable(CommandTableCreatorFn aCreatorFn) {
+ RefPtr<nsControllerCommandTable> commandTable = aCreatorFn();
+ if (!commandTable) {
+ return nullptr;
+ }
+
+ // this is a singleton; make it immutable
+ commandTable->MakeImmutable();
+
+ RefPtr<nsBaseCommandController> commandController =
+ new nsBaseCommandController(commandTable);
+ return commandController.forget();
+}
+
+already_AddRefed<nsBaseCommandController>
+nsBaseCommandController::CreateWindowController() {
+ return CreateControllerWithSingletonCommandTable(
+ nsControllerCommandTable::CreateWindowCommandTable);
+}
+
+already_AddRefed<nsBaseCommandController>
+nsBaseCommandController::CreateEditorController() {
+ return CreateControllerWithSingletonCommandTable(
+ nsControllerCommandTable::CreateEditorCommandTable);
+}
+
+already_AddRefed<nsBaseCommandController>
+nsBaseCommandController::CreateEditingController() {
+ return CreateControllerWithSingletonCommandTable(
+ nsControllerCommandTable::CreateEditingCommandTable);
+}
+
+already_AddRefed<nsBaseCommandController>
+nsBaseCommandController::CreateHTMLEditorController() {
+ return CreateControllerWithSingletonCommandTable(
+ nsControllerCommandTable::CreateHTMLEditorCommandTable);
+}
+
+already_AddRefed<nsBaseCommandController>
+nsBaseCommandController::CreateHTMLEditorDocStateController() {
+ return CreateControllerWithSingletonCommandTable(
+ nsControllerCommandTable::CreateHTMLEditorDocStateCommandTable);
+}