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-rw-r--r--dom/xul/nsXULControllers.cpp214
1 files changed, 214 insertions, 0 deletions
diff --git a/dom/xul/nsXULControllers.cpp b/dom/xul/nsXULControllers.cpp
new file mode 100644
index 0000000000..3e96fd6e41
--- /dev/null
+++ b/dom/xul/nsXULControllers.cpp
@@ -0,0 +1,214 @@
+/* -*- 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/. */
+
+/*
+
+ This file provides the implementation for the XUL "controllers"
+ object.
+
+*/
+
+#include "nsString.h"
+
+#include "nsIControllers.h"
+#include "nsXULControllers.h"
+#include "nsIController.h"
+#include "mozilla/RefPtr.h"
+
+//----------------------------------------------------------------------
+
+nsXULControllerData::nsXULControllerData(uint32_t inControllerID,
+ nsIController* inController)
+ : mControllerID(inControllerID), mController(inController) {}
+
+nsresult nsXULControllerData::GetController(nsIController** outController) {
+ NS_IF_ADDREF(*outController = mController);
+ return NS_OK;
+}
+
+nsXULControllers::nsXULControllers() : mCurControllerID(0) {}
+
+nsXULControllers::~nsXULControllers(void) { DeleteControllers(); }
+
+void nsXULControllers::DeleteControllers() {
+ uint32_t count = mControllers.Length();
+ for (uint32_t i = 0; i < count; i++) {
+ nsXULControllerData* controllerData = mControllers.ElementAt(i);
+ delete controllerData; // releases the nsIController
+ }
+
+ mControllers.Clear();
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(nsXULControllers)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsXULControllers)
+ tmp->DeleteControllers();
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsXULControllers)
+ {
+ uint32_t i, count = tmp->mControllers.Length();
+ for (i = 0; i < count; ++i) {
+ nsXULControllerData* controllerData = tmp->mControllers[i];
+ if (controllerData) {
+ cb.NoteXPCOMChild(controllerData->mController);
+ }
+ }
+ }
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULControllers)
+ NS_INTERFACE_MAP_ENTRY(nsIControllers)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIControllers)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULControllers)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULControllers)
+
+NS_IMETHODIMP
+nsXULControllers::GetControllerForCommand(const char* aCommand,
+ nsIController** _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+ *_retval = nullptr;
+
+ uint32_t count = mControllers.Length();
+ for (uint32_t i = 0; i < count; i++) {
+ nsXULControllerData* controllerData = mControllers.ElementAt(i);
+ if (controllerData) {
+ nsCOMPtr<nsIController> controller;
+ controllerData->GetController(getter_AddRefs(controller));
+ if (controller) {
+ bool supportsCommand;
+ controller->SupportsCommand(aCommand, &supportsCommand);
+ if (supportsCommand) {
+ controller.forget(_retval);
+ return NS_OK;
+ }
+ }
+ }
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULControllers::InsertControllerAt(uint32_t aIndex,
+ nsIController* controller) {
+ nsXULControllerData* controllerData =
+ new nsXULControllerData(++mCurControllerID, controller);
+#ifdef DEBUG
+ nsXULControllerData** inserted =
+#endif
+ mControllers.InsertElementAt(aIndex, controllerData);
+ NS_ASSERTION(inserted != nullptr, "Insertion of controller failed");
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULControllers::RemoveControllerAt(uint32_t aIndex, nsIController** _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+ *_retval = nullptr;
+
+ nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
+ if (!controllerData) return NS_ERROR_FAILURE;
+
+ mControllers.RemoveElementAt(aIndex);
+
+ controllerData->GetController(_retval);
+ delete controllerData;
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULControllers::GetControllerAt(uint32_t aIndex, nsIController** _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+ *_retval = nullptr;
+
+ nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
+ if (!controllerData) return NS_ERROR_FAILURE;
+
+ return controllerData->GetController(_retval); // does the addref
+}
+
+NS_IMETHODIMP
+nsXULControllers::AppendController(nsIController* controller) {
+ // This assigns controller IDs starting at 1 so we can use 0 to test if an ID
+ // was obtained
+ nsXULControllerData* controllerData =
+ new nsXULControllerData(++mCurControllerID, controller);
+
+#ifdef DEBUG
+ nsXULControllerData** appended =
+#endif
+ mControllers.AppendElement(controllerData);
+ NS_ASSERTION(appended != nullptr, "Appending controller failed");
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULControllers::RemoveController(nsIController* controller) {
+ // first get the identity pointer
+ nsCOMPtr<nsISupports> controllerSup(do_QueryInterface(controller));
+ // then find it
+ uint32_t count = mControllers.Length();
+ for (uint32_t i = 0; i < count; i++) {
+ nsXULControllerData* controllerData = mControllers.ElementAt(i);
+ if (controllerData) {
+ nsCOMPtr<nsIController> thisController;
+ controllerData->GetController(getter_AddRefs(thisController));
+ nsCOMPtr<nsISupports> thisControllerSup(
+ do_QueryInterface(thisController)); // get identity
+ if (thisControllerSup == controllerSup) {
+ mControllers.RemoveElementAt(i);
+ delete controllerData;
+ return NS_OK;
+ }
+ }
+ }
+ return NS_ERROR_FAILURE; // right thing to return if no controller found?
+}
+
+NS_IMETHODIMP
+nsXULControllers::GetControllerId(nsIController* controller,
+ uint32_t* _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+
+ uint32_t count = mControllers.Length();
+ for (uint32_t i = 0; i < count; i++) {
+ nsXULControllerData* controllerData = mControllers.ElementAt(i);
+ if (controllerData) {
+ nsCOMPtr<nsIController> thisController;
+ controllerData->GetController(getter_AddRefs(thisController));
+ if (thisController.get() == controller) {
+ *_retval = controllerData->GetControllerID();
+ return NS_OK;
+ }
+ }
+ }
+ return NS_ERROR_FAILURE; // none found
+}
+
+NS_IMETHODIMP
+nsXULControllers::GetControllerById(uint32_t controllerID,
+ nsIController** _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+
+ uint32_t count = mControllers.Length();
+ for (uint32_t i = 0; i < count; i++) {
+ nsXULControllerData* controllerData = mControllers.ElementAt(i);
+ if (controllerData && controllerData->GetControllerID() == controllerID) {
+ return controllerData->GetController(_retval);
+ }
+ }
+ return NS_ERROR_FAILURE; // none found
+}
+
+NS_IMETHODIMP
+nsXULControllers::GetControllerCount(uint32_t* _retval) {
+ NS_ENSURE_ARG_POINTER(_retval);
+ *_retval = mControllers.Length();
+ return NS_OK;
+}