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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
#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);
}