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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/. */
#include "nsControllerCommandTable.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/ControllerCommand.h"
#include "mozilla/EditorController.h"
#include "mozilla/HTMLEditorController.h"
#include "mozilla/StaticPtr.h"
#include "nsGlobalWindowCommands.h"
#include "nsString.h"
using mozilla::ControllerCommand;
// this value is used to size the hash table. Just a sensible upper bound
#define NUM_COMMANDS_LENGTH 32
nsControllerCommandTable::nsControllerCommandTable()
: mCommandsTable(NUM_COMMANDS_LENGTH) {}
nsControllerCommandTable::~nsControllerCommandTable() = default;
void nsControllerCommandTable::RegisterCommand(const nsACString& aName,
ControllerCommand* aCommand) {
MOZ_DIAGNOSTIC_ASSERT(mMutable);
mCommandsTable.InsertOrUpdate(aName, aCommand);
}
void nsControllerCommandTable::UnregisterCommand(const nsACString& aCommandName,
ControllerCommand* aCommand) {
MOZ_DIAGNOSTIC_ASSERT(mMutable);
mCommandsTable.Remove(aCommandName);
}
ControllerCommand* nsControllerCommandTable::FindCommandHandler(
const nsACString& aCommandName) const {
return mCommandsTable.GetWeak(aCommandName);
}
bool nsControllerCommandTable::IsCommandEnabled(const nsACString& aCommandName,
nsISupports* aContext) const {
RefPtr handler = FindCommandHandler(aCommandName);
if (!handler) {
NS_WARNING(
"Controller command table asked about a command that it does "
"not handle");
return false;
}
return handler->IsCommandEnabled(aCommandName, aContext);
}
void nsControllerCommandTable::GetSupportedCommands(
nsTArray<nsCString>& aCommands) const {
mozilla::AppendToArray(aCommands, mCommandsTable.Keys());
}
using CommandTableRegistrar = void (*)(nsControllerCommandTable*);
static nsControllerCommandTable* EnsureCommandTableWithCommands(
mozilla::StaticRefPtr<nsControllerCommandTable>& aTable,
CommandTableRegistrar aRegistrar) {
if (!aTable) {
aTable = new nsControllerCommandTable();
aRegistrar(aTable);
aTable->MakeImmutable();
ClearOnShutdown(&aTable);
}
return aTable;
}
// static
nsControllerCommandTable* nsControllerCommandTable::EditorCommandTable() {
static mozilla::StaticRefPtr<nsControllerCommandTable> sTable;
return EnsureCommandTableWithCommands(
sTable, mozilla::EditorController::RegisterEditorCommands);
}
// static
nsControllerCommandTable* nsControllerCommandTable::EditingCommandTable() {
static mozilla::StaticRefPtr<nsControllerCommandTable> sTable;
return EnsureCommandTableWithCommands(
sTable, mozilla::EditorController::RegisterEditingCommands);
}
// static
nsControllerCommandTable* nsControllerCommandTable::HTMLEditorCommandTable() {
static mozilla::StaticRefPtr<nsControllerCommandTable> sTable;
return EnsureCommandTableWithCommands(
sTable, mozilla::HTMLEditorController::RegisterHTMLEditorCommands);
}
// static
nsControllerCommandTable*
nsControllerCommandTable::HTMLEditorDocStateCommandTable() {
static mozilla::StaticRefPtr<nsControllerCommandTable> sTable;
return EnsureCommandTableWithCommands(
sTable, mozilla::HTMLEditorController::RegisterEditorDocStateCommands);
}
// static
nsControllerCommandTable* nsControllerCommandTable::WindowCommandTable() {
static mozilla::StaticRefPtr<nsControllerCommandTable> sTable;
return EnsureCommandTableWithCommands(
sTable, nsWindowCommandRegistration::RegisterWindowCommands);
}
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