зеркало из https://github.com/mozilla/gecko-dev.git
64 строки
2.2 KiB
C++
64 строки
2.2 KiB
C++
/* -*- 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 "mozilla/dom/UIDirectionManager.h"
|
|
#include "mozilla/Preferences.h"
|
|
#include "nsIWindowMediator.h"
|
|
#include "nsDocShell.h"
|
|
#include "mozilla/dom/Document.h"
|
|
#include "mozilla/SimpleEnumerator.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
/* static */
|
|
void OnPrefChange(const char* aPrefName, void*) {
|
|
// Iterate over all of the windows and notify them of the direction change.
|
|
nsCOMPtr<nsIWindowMediator> windowMediator =
|
|
do_GetService(NS_WINDOWMEDIATOR_CONTRACTID);
|
|
NS_ENSURE_TRUE_VOID(windowMediator);
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
|
|
windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
|
|
NS_ENSURE_TRUE_VOID(windowEnumerator);
|
|
|
|
for (auto& elements : SimpleEnumerator<nsISupports>(windowEnumerator)) {
|
|
nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(elements);
|
|
if (window->Closed()) {
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> rootDocShell = window->GetDocShell();
|
|
nsCOMPtr<nsISimpleEnumerator> docShellEnumerator;
|
|
rootDocShell->GetDocShellEnumerator(nsIDocShell::typeAll,
|
|
nsIDocShell::ENUMERATE_FORWARDS,
|
|
getter_AddRefs(docShellEnumerator));
|
|
NS_ENSURE_TRUE_VOID(docShellEnumerator);
|
|
for (auto& docShell : SimpleEnumerator<nsIDocShell>(docShellEnumerator)) {
|
|
if (nsCOMPtr<nsPIDOMWindowOuter> win = do_GetInterface(docShell)) {
|
|
if (dom::Document* doc = win->GetExtantDoc()) {
|
|
doc->ResetDocumentDirection();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* static */
|
|
void UIDirectionManager::Initialize() {
|
|
DebugOnly<nsresult> rv =
|
|
Preferences::RegisterCallback(OnPrefChange, "intl.uidirection");
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv), "Failed to observe \"intl.uidirection\"");
|
|
}
|
|
|
|
/* static */
|
|
void UIDirectionManager::Shutdown() {
|
|
Preferences::UnregisterCallback(OnPrefChange, "intl.uidirection");
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|