mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 06:05:44 +00:00
546 lines
16 KiB
C++
546 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsBrowserElement.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Services.h"
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#include "mozilla/dom/BrowserElementBinding.h"
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#include "mozilla/dom/DOMRequest.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "nsComponentManagerUtils.h"
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#include "nsContentUtils.h"
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#include "nsFrameLoader.h"
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#include "nsIDOMDOMRequest.h"
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#include "nsIDOMElement.h"
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#include "nsINode.h"
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#include "nsIObserver.h"
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#include "nsIObserverService.h"
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#include "nsIPrincipal.h"
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#include "nsWeakReference.h"
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using namespace mozilla::dom;
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namespace mozilla {
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static const char kRemoteBrowserPending[] = "remote-browser-pending";
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static const char kInprocessBrowserShown[] = "inprocess-browser-shown";
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class nsBrowserElement::BrowserShownObserver : public nsIObserver
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, public nsSupportsWeakReference
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{
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public:
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explicit BrowserShownObserver(nsBrowserElement* aBrowserElement);
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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void AddObserver();
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void RemoveObserver();
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private:
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virtual ~BrowserShownObserver();
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// Weak reference to the browser element. nsBrowserElement has a
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// reference to us. nsBrowserElement's destructor is responsible to
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// null out this weak reference via RemoveObserver()
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nsBrowserElement* mBrowserElement;
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};
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NS_IMPL_ISUPPORTS(nsBrowserElement::BrowserShownObserver, nsIObserver, nsISupportsWeakReference)
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nsBrowserElement::BrowserShownObserver::BrowserShownObserver(nsBrowserElement* aBrowserElement)
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: mBrowserElement(aBrowserElement)
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{
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}
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nsBrowserElement::BrowserShownObserver::~BrowserShownObserver()
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{
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RemoveObserver();
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}
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NS_IMETHODIMP
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nsBrowserElement::BrowserShownObserver::Observe(nsISupports* aSubject,
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const char* aTopic,
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const char16_t* aData)
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{
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NS_ENSURE_TRUE(mBrowserElement, NS_OK);
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if (!strcmp(aTopic, kRemoteBrowserPending) ||
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!strcmp(aTopic, kInprocessBrowserShown)) {
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nsCOMPtr<nsIFrameLoader> frameLoader = do_QueryInterface(aSubject);
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nsCOMPtr<nsIFrameLoader> myFrameLoader = mBrowserElement->GetFrameLoader();
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// The browser element API needs the frameloader to
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// initialize. We still use the observer to get notified when the
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// frameloader is created. So we check if the frameloader created
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// is ours, then initialize the browser element API.
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if (frameLoader && frameLoader == myFrameLoader) {
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mBrowserElement->InitBrowserElementAPI();
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}
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}
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return NS_OK;
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}
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void
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nsBrowserElement::BrowserShownObserver::AddObserver()
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{
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (obs) {
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obs->AddObserver(this, kRemoteBrowserPending, true);
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obs->AddObserver(this, kInprocessBrowserShown, true);
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}
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}
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void
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nsBrowserElement::BrowserShownObserver::RemoveObserver()
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{
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (obs) {
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obs->RemoveObserver(this, kRemoteBrowserPending);
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obs->RemoveObserver(this, kInprocessBrowserShown);
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}
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mBrowserElement = nullptr;
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}
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bool
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nsBrowserElement::IsBrowserElementOrThrow(ErrorResult& aRv)
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{
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if (mBrowserElementAPI) {
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return true;
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}
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aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
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return false;
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}
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bool
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nsBrowserElement::IsNotWidgetOrThrow(ErrorResult& aRv)
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{
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if (!mOwnerIsWidget) {
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return true;
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}
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aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
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return false;
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}
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void
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nsBrowserElement::InitBrowserElementAPI()
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{
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bool isBrowserOrApp;
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nsCOMPtr<nsIFrameLoader> frameLoader = GetFrameLoader();
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NS_ENSURE_TRUE_VOID(frameLoader);
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nsresult rv = frameLoader->GetOwnerIsBrowserOrAppFrame(&isBrowserOrApp);
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NS_ENSURE_SUCCESS_VOID(rv);
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rv = frameLoader->GetOwnerIsWidget(&mOwnerIsWidget);
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NS_ENSURE_SUCCESS_VOID(rv);
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if (!isBrowserOrApp) {
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return;
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}
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mBrowserElementAPI = do_CreateInstance("@mozilla.org/dom/browser-element-api;1");
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if (mBrowserElementAPI) {
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mBrowserElementAPI->SetFrameLoader(frameLoader);
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}
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}
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nsBrowserElement::nsBrowserElement()
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: mOwnerIsWidget(false)
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{
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mObserver = new BrowserShownObserver(this);
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mObserver->AddObserver();
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}
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nsBrowserElement::~nsBrowserElement()
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{
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mObserver->RemoveObserver();
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}
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void
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nsBrowserElement::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->SetVisible(aVisible);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::GetVisible(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->GetVisible(getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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void
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nsBrowserElement::SetActive(bool aVisible, ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->SetActive(aVisible);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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bool
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nsBrowserElement::GetActive(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), false);
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bool isActive;
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nsresult rv = mBrowserElementAPI->GetActive(&isActive);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return false;
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}
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return isActive;
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}
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void
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nsBrowserElement::SendMouseEvent(const nsAString& aType,
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uint32_t aX,
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uint32_t aY,
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uint32_t aButton,
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uint32_t aClickCount,
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uint32_t aModifiers,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->SendMouseEvent(aType,
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aX,
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aY,
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aButton,
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aClickCount,
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aModifiers);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::SendTouchEvent(const nsAString& aType,
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const Sequence<uint32_t>& aIdentifiers,
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const Sequence<int32_t>& aXs,
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const Sequence<int32_t>& aYs,
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const Sequence<uint32_t>& aRxs,
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const Sequence<uint32_t>& aRys,
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const Sequence<float>& aRotationAngles,
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const Sequence<float>& aForces,
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uint32_t aCount,
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uint32_t aModifiers,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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if (aIdentifiers.Length() != aCount ||
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aXs.Length() != aCount ||
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aYs.Length() != aCount ||
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aRxs.Length() != aCount ||
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aRys.Length() != aCount ||
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aRotationAngles.Length() != aCount ||
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aForces.Length() != aCount) {
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aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
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return;
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}
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nsresult rv = mBrowserElementAPI->SendTouchEvent(aType,
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aIdentifiers.Elements(),
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aXs.Elements(),
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aYs.Elements(),
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aRxs.Elements(),
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aRys.Elements(),
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aRotationAngles.Elements(),
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aForces.Elements(),
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aCount,
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aModifiers);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::GoBack(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->GoBack();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::GoForward(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->GoForward();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::Reload(bool aHardReload, ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->Reload(aHardReload);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::Stop(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->Stop();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::Download(const nsAString& aUrl,
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const BrowserElementDownloadOptions& aOptions,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsCOMPtr<nsIXPConnectWrappedJS> wrappedObj = do_QueryInterface(mBrowserElementAPI);
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MOZ_ASSERT(wrappedObj, "Failed to get wrapped JS from XPCOM component.");
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AutoJSAPI jsapi;
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jsapi.Init(wrappedObj->GetJSObject());
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JSContext* cx = jsapi.cx();
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JS::Rooted<JS::Value> options(cx);
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if (!ToJSValue(cx, aOptions, &options)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return nullptr;
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}
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nsresult rv = mBrowserElementAPI->Download(aUrl, options, getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::PurgeHistory(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->PurgeHistory(getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::GetScreenshot(uint32_t aWidth,
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uint32_t aHeight,
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const nsAString& aMimeType,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->GetScreenshot(aWidth, aHeight, aMimeType,
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getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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if (rv == NS_ERROR_INVALID_ARG) {
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aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
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} else {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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void
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nsBrowserElement::Zoom(float aZoom, ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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NS_ENSURE_TRUE_VOID(IsNotWidgetOrThrow(aRv));
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nsresult rv = mBrowserElementAPI->Zoom(aZoom);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::GetCanGoBack(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->GetCanGoBack(getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::GetCanGoForward(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->GetCanGoForward(getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::GetContentDimensions(ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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NS_ENSURE_TRUE(IsNotWidgetOrThrow(aRv), nullptr);
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nsCOMPtr<nsIDOMDOMRequest> req;
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nsresult rv = mBrowserElementAPI->GetContentDimensions(getter_AddRefs(req));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return req.forget().downcast<DOMRequest>();
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}
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void
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nsBrowserElement::AddNextPaintListener(BrowserElementNextPaintEventCallback& aListener,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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CallbackObjectHolder<BrowserElementNextPaintEventCallback,
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nsIBrowserElementNextPaintListener> holder(&aListener);
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nsCOMPtr<nsIBrowserElementNextPaintListener> listener = holder.ToXPCOMCallback();
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nsresult rv = mBrowserElementAPI->AddNextPaintListener(listener);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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void
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nsBrowserElement::RemoveNextPaintListener(BrowserElementNextPaintEventCallback& aListener,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
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CallbackObjectHolder<BrowserElementNextPaintEventCallback,
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nsIBrowserElementNextPaintListener> holder(&aListener);
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nsCOMPtr<nsIBrowserElementNextPaintListener> listener = holder.ToXPCOMCallback();
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nsresult rv = mBrowserElementAPI->RemoveNextPaintListener(listener);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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}
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already_AddRefed<DOMRequest>
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nsBrowserElement::SetInputMethodActive(bool aIsActive,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
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nsCOMPtr<nsIFrameLoader> frameLoader = GetFrameLoader();
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if (!frameLoader) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return nullptr;
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}
|
|
|
|
nsCOMPtr<nsIDOMElement> ownerElement;
|
|
nsresult rv = frameLoader->GetOwnerElement(getter_AddRefs(ownerElement));
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsINode> node = do_QueryInterface(ownerElement);
|
|
nsCOMPtr<nsIPrincipal> principal = node->NodePrincipal();
|
|
if (!nsContentUtils::IsExactSitePermAllow(principal, "input-manage")) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMDOMRequest> req;
|
|
rv = mBrowserElementAPI->SetInputMethodActive(aIsActive,
|
|
getter_AddRefs(req));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
if (rv == NS_ERROR_INVALID_ARG) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
|
|
} else {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
return req.forget().downcast<DOMRequest>();
|
|
}
|
|
|
|
} // namespace mozilla
|