gecko-dev/dom/html/nsBrowserElement.cpp

452 строки
12 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 "nsBrowserElement.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/dom/BrowserElementBinding.h"
#include "mozilla/dom/DOMRequest.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/ToJSValue.h"
#include "nsComponentManagerUtils.h"
#include "nsFrameLoader.h"
#include "nsIMozBrowserFrame.h"
#include "nsINode.h"
#include "nsIPrincipal.h"
#include "js/Wrapper.h"
using namespace mozilla::dom;
namespace mozilla {
bool
nsBrowserElement::IsBrowserElementOrThrow(ErrorResult& aRv)
{
if (mBrowserElementAPI) {
return true;
}
aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
return false;
}
void
nsBrowserElement::InitBrowserElementAPI()
{
RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
NS_ENSURE_TRUE_VOID(frameLoader);
if (!frameLoader->OwnerIsMozBrowserFrame()) {
return;
}
if (!mBrowserElementAPI) {
mBrowserElementAPI = do_CreateInstance("@mozilla.org/dom/browser-element-api;1");
if (NS_WARN_IF(!mBrowserElementAPI)) {
return;
}
}
mBrowserElementAPI->SetFrameLoader(frameLoader);
}
void
nsBrowserElement::DestroyBrowserElementFrameScripts()
{
if (!mBrowserElementAPI) {
return;
}
mBrowserElementAPI->DestroyFrameScripts();
}
void
nsBrowserElement::SendMouseEvent(const nsAString& aType,
uint32_t aX,
uint32_t aY,
uint32_t aButton,
uint32_t aClickCount,
uint32_t aModifiers,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->SendMouseEvent(aType,
aX,
aY,
aButton,
aClickCount,
aModifiers);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::SendTouchEvent(const nsAString& aType,
const Sequence<uint32_t>& aIdentifiers,
const Sequence<int32_t>& aXs,
const Sequence<int32_t>& aYs,
const Sequence<uint32_t>& aRxs,
const Sequence<uint32_t>& aRys,
const Sequence<float>& aRotationAngles,
const Sequence<float>& aForces,
uint32_t aCount,
uint32_t aModifiers,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
if (aIdentifiers.Length() != aCount ||
aXs.Length() != aCount ||
aYs.Length() != aCount ||
aRxs.Length() != aCount ||
aRys.Length() != aCount ||
aRotationAngles.Length() != aCount ||
aForces.Length() != aCount) {
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return;
}
nsresult rv = mBrowserElementAPI->SendTouchEvent(aType,
aIdentifiers.Elements(),
aXs.Elements(),
aYs.Elements(),
aRxs.Elements(),
aRys.Elements(),
aRotationAngles.Elements(),
aForces.Elements(),
aCount,
aModifiers);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::GoBack(ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->GoBack();
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::GoForward(ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->GoForward();
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::Reload(bool aHardReload, ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->Reload(aHardReload);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::Stop(ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->Stop();
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
already_AddRefed<DOMRequest>
nsBrowserElement::Download(const nsAString& aUrl,
const BrowserElementDownloadOptions& aOptions,
ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsCOMPtr<nsIXPConnectWrappedJS> wrappedObj = do_QueryInterface(mBrowserElementAPI);
MOZ_ASSERT(wrappedObj, "Failed to get wrapped JS from XPCOM component.");
MOZ_RELEASE_ASSERT(!js::IsWrapper(wrappedObj->GetJSObject()));
AutoJSAPI jsapi;
if (!jsapi.Init(wrappedObj->GetJSObject())) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
JSContext* cx = jsapi.cx();
JS::Rooted<JS::Value> options(cx);
aRv.MightThrowJSException();
if (!ToJSValue(cx, aOptions, &options)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
nsresult rv = mBrowserElementAPI->Download(aUrl, options, getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
already_AddRefed<DOMRequest>
nsBrowserElement::PurgeHistory(ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->PurgeHistory(getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
already_AddRefed<DOMRequest>
nsBrowserElement::GetScreenshot(uint32_t aWidth,
uint32_t aHeight,
const nsAString& aMimeType,
ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->GetScreenshot(aWidth, aHeight, aMimeType,
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();
}
void
nsBrowserElement::Zoom(float aZoom, ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->Zoom(aZoom);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
already_AddRefed<DOMRequest>
nsBrowserElement::GetCanGoBack(ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->GetCanGoBack(getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
already_AddRefed<DOMRequest>
nsBrowserElement::GetCanGoForward(ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->GetCanGoForward(getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
already_AddRefed<DOMRequest>
nsBrowserElement::GetContentDimensions(ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->GetContentDimensions(getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
void
nsBrowserElement::FindAll(const nsAString& aSearchString,
BrowserFindCaseSensitivity aCaseSensitivity,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
uint32_t caseSensitivity;
if (aCaseSensitivity == BrowserFindCaseSensitivity::Case_insensitive) {
caseSensitivity = nsIBrowserElementAPI::FIND_CASE_INSENSITIVE;
} else {
caseSensitivity = nsIBrowserElementAPI::FIND_CASE_SENSITIVE;
}
nsresult rv = mBrowserElementAPI->FindAll(aSearchString, caseSensitivity);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
}
}
void
nsBrowserElement::FindNext(BrowserFindDirection aDirection,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
uint32_t direction;
if (aDirection == BrowserFindDirection::Backward) {
direction = nsIBrowserElementAPI::FIND_BACKWARD;
} else {
direction = nsIBrowserElementAPI::FIND_FORWARD;
}
nsresult rv = mBrowserElementAPI->FindNext(direction);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
}
}
void
nsBrowserElement::ClearMatch(ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
nsresult rv = mBrowserElementAPI->ClearMatch();
if (NS_FAILED(rv)) {
aRv.Throw(rv);
}
}
void
nsBrowserElement::AddNextPaintListener(BrowserElementNextPaintEventCallback& aListener,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
JS::Rooted<JS::Value> val(RootingCx(),
JS::ObjectOrNullValue(aListener.CallbackOrNull()));
nsresult rv = mBrowserElementAPI->AddNextPaintListener(val);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
void
nsBrowserElement::RemoveNextPaintListener(BrowserElementNextPaintEventCallback& aListener,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(IsBrowserElementOrThrow(aRv));
JS::Rooted<JS::Value> val(RootingCx(),
JS::ObjectOrNullValue(aListener.CallbackOrNull()));
nsresult rv = mBrowserElementAPI->RemoveNextPaintListener(val);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
}
}
already_AddRefed<DOMRequest>
nsBrowserElement::ExecuteScript(const nsAString& aScript,
const BrowserElementExecuteScriptOptions& aOptions,
ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsCOMPtr<nsIXPConnectWrappedJS> wrappedObj = do_QueryInterface(mBrowserElementAPI);
MOZ_ASSERT(wrappedObj, "Failed to get wrapped JS from XPCOM component.");
MOZ_RELEASE_ASSERT(!js::IsWrapper(wrappedObj->GetJSObject()));
AutoJSAPI jsapi;
if (!jsapi.Init(wrappedObj->GetJSObject())) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
JSContext* cx = jsapi.cx();
JS::Rooted<JS::Value> options(cx);
aRv.MightThrowJSException();
if (!ToJSValue(cx, aOptions, &options)) {
aRv.StealExceptionFromJSContext(cx);
return nullptr;
}
nsresult rv = mBrowserElementAPI->ExecuteScript(aScript, options, getter_AddRefs(req));
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();
}
already_AddRefed<DOMRequest>
nsBrowserElement::GetWebManifest(ErrorResult& aRv)
{
NS_ENSURE_TRUE(IsBrowserElementOrThrow(aRv), nullptr);
RefPtr<DOMRequest> req;
nsresult rv = mBrowserElementAPI->GetWebManifest(getter_AddRefs(req));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return req.forget();
}
} // namespace mozilla