cef/libcef/renderer/frame_impl.cc

527 lines
15 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that can
// be found in the LICENSE file.
#include "libcef/renderer/frame_impl.h"
#include "base/compiler_specific.h"
// Enable deprecation warnings on Windows. See http://crbug.com/585142.
#if defined(OS_WIN)
#if defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic error "-Wdeprecated-declarations"
#else
#pragma warning(push)
#pragma warning(default : 4996)
#endif
#endif
#include "libcef/common/cef_messages.h"
#include "libcef/common/content_client.h"
#include "libcef/common/net/http_header_utils.h"
#include "libcef/common/process_message_impl.h"
#include "libcef/common/request_impl.h"
#include "libcef/common/response_manager.h"
#include "libcef/renderer/blink_glue.h"
#include "libcef/renderer/browser_impl.h"
#include "libcef/renderer/dom_document_impl.h"
#include "libcef/renderer/render_frame_util.h"
#include "libcef/renderer/render_urlrequest_impl.h"
#include "libcef/renderer/thread_util.h"
#include "libcef/renderer/v8_impl.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/renderer/render_view.h"
#include "content/renderer/render_frame_impl.h"
#include "third_party/blink/public/platform/web_data.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/web/blink.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_document_loader.h"
#include "third_party/blink/public/web/web_frame_content_dumper.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_navigation_control.h"
#include "third_party/blink/public/web/web_script_source.h"
#include "third_party/blink/public/web/web_view.h"
CefFrameImpl::CefFrameImpl(CefBrowserImpl* browser,
blink::WebLocalFrame* frame,
int64_t frame_id)
: browser_(browser),
frame_(frame),
frame_id_(frame_id),
response_manager_(new CefResponseManager) {}
CefFrameImpl::~CefFrameImpl() {}
bool CefFrameImpl::IsValid() {
CEF_REQUIRE_RT_RETURN(false);
return (frame_ != nullptr);
}
void CefFrameImpl::Undo() {
ExecuteCommand("Undo");
}
void CefFrameImpl::Redo() {
ExecuteCommand("Redo");
}
void CefFrameImpl::Cut() {
ExecuteCommand("Cut");
}
void CefFrameImpl::Copy() {
ExecuteCommand("Copy");
}
void CefFrameImpl::Paste() {
ExecuteCommand("Paste");
}
void CefFrameImpl::Delete() {
ExecuteCommand("Delete");
}
void CefFrameImpl::SelectAll() {
ExecuteCommand("SelectAll");
}
void CefFrameImpl::ViewSource() {
NOTREACHED() << "ViewSource cannot be called from the renderer process";
}
void CefFrameImpl::GetSource(CefRefPtr<CefStringVisitor> visitor) {
CEF_REQUIRE_RT_RETURN_VOID();
if (frame_) {
const CefString& content =
std::string(blink::WebFrameContentDumper::DumpAsMarkup(frame_).Utf8());
visitor->Visit(content);
}
}
void CefFrameImpl::GetText(CefRefPtr<CefStringVisitor> visitor) {
CEF_REQUIRE_RT_RETURN_VOID();
if (frame_) {
const CefString& content = blink_glue::DumpDocumentText(frame_);
visitor->Visit(content);
}
}
void CefFrameImpl::LoadRequest(CefRefPtr<CefRequest> request) {
CEF_REQUIRE_RT_RETURN_VOID();
if (!frame_)
return;
CefMsg_LoadRequest_Params params;
params.url = GURL(std::string(request->GetURL()));
params.method = request->GetMethod();
params.site_for_cookies = net::SiteForCookies::FromUrl(
GURL(request->GetFirstPartyForCookies().ToString()));
CefRequest::HeaderMap headerMap;
request->GetHeaderMap(headerMap);
if (!headerMap.empty())
params.headers = HttpHeaderUtils::GenerateHeaders(headerMap);
CefRefPtr<CefPostData> postData = request->GetPostData();
if (postData.get()) {
CefPostDataImpl* impl = static_cast<CefPostDataImpl*>(postData.get());
params.upload_data = new net::UploadData();
impl->Get(*params.upload_data.get());
}
params.load_flags = request->GetFlags();
OnLoadRequest(params);
}
void CefFrameImpl::LoadURL(const CefString& url) {
CEF_REQUIRE_RT_RETURN_VOID();
if (!frame_)
return;
CefMsg_LoadRequest_Params params;
params.url = GURL(url.ToString());
params.method = "GET";
OnLoadRequest(params);
}
void CefFrameImpl::ExecuteJavaScript(const CefString& jsCode,
const CefString& scriptUrl,
int startLine) {
CEF_REQUIRE_RT_RETURN_VOID();
if (jsCode.empty())
return;
if (startLine < 1)
startLine = 1;
if (frame_) {
GURL gurl = GURL(scriptUrl.ToString());
frame_->ExecuteScript(blink::WebScriptSource(
blink::WebString::FromUTF16(jsCode.ToString16()), gurl, startLine));
}
}
bool CefFrameImpl::IsMain() {
CEF_REQUIRE_RT_RETURN(false);
if (frame_)
return (frame_->Parent() == nullptr);
return false;
}
bool CefFrameImpl::IsFocused() {
CEF_REQUIRE_RT_RETURN(false);
if (frame_ && frame_->View())
return (frame_->View()->FocusedFrame() == frame_);
return false;
}
CefString CefFrameImpl::GetName() {
CefString name;
CEF_REQUIRE_RT_RETURN(name);
if (frame_)
name = render_frame_util::GetName(frame_);
return name;
}
int64 CefFrameImpl::GetIdentifier() {
CEF_REQUIRE_RT_RETURN(0);
return frame_id_;
}
CefRefPtr<CefFrame> CefFrameImpl::GetParent() {
CEF_REQUIRE_RT_RETURN(nullptr);
if (frame_) {
blink::WebFrame* parent = frame_->Parent();
if (parent && parent->IsWebLocalFrame())
return browser_->GetWebFrameImpl(parent->ToWebLocalFrame()).get();
}
return nullptr;
}
CefString CefFrameImpl::GetURL() {
CefString url;
CEF_REQUIRE_RT_RETURN(url);
if (frame_) {
GURL gurl = frame_->GetDocument().Url();
url = gurl.spec();
}
return url;
}
CefRefPtr<CefBrowser> CefFrameImpl::GetBrowser() {
CEF_REQUIRE_RT_RETURN(nullptr);
return browser_;
}
CefRefPtr<CefV8Context> CefFrameImpl::GetV8Context() {
CEF_REQUIRE_RT_RETURN(nullptr);
if (frame_) {
v8::Isolate* isolate = blink::MainThreadIsolate();
v8::HandleScope handle_scope(isolate);
return new CefV8ContextImpl(isolate, frame_->MainWorldScriptContext());
} else {
return nullptr;
}
}
void CefFrameImpl::VisitDOM(CefRefPtr<CefDOMVisitor> visitor) {
CEF_REQUIRE_RT_RETURN_VOID();
if (!frame_)
return;
// Create a CefDOMDocumentImpl object that is valid only for the scope of this
// method.
CefRefPtr<CefDOMDocumentImpl> documentImpl;
const blink::WebDocument& document = frame_->GetDocument();
if (!document.IsNull())
documentImpl = new CefDOMDocumentImpl(browser_, frame_);
visitor->Visit(documentImpl.get());
if (documentImpl.get())
documentImpl->Detach();
}
CefRefPtr<CefURLRequest> CefFrameImpl::CreateURLRequest(
CefRefPtr<CefRequest> request,
CefRefPtr<CefURLRequestClient> client) {
CEF_REQUIRE_RT_RETURN(nullptr);
if (!request || !client || !frame_)
return nullptr;
CefRefPtr<CefRenderURLRequest> impl =
new CefRenderURLRequest(this, request, client);
if (impl->Start())
return impl.get();
return nullptr;
}
void CefFrameImpl::SendProcessMessage(CefProcessId target_process,
CefRefPtr<CefProcessMessage> message) {
Cef_Request_Params params;
CefProcessMessageImpl* impl =
static_cast<CefProcessMessageImpl*>(message.get());
if (impl->CopyTo(params)) {
SendProcessMessage(target_process, params.name, &params.arguments, true);
}
}
blink::WebURLLoaderFactory* CefFrameImpl::GetURLLoaderFactory() {
CEF_REQUIRE_RT();
if (!url_loader_factory_ && frame_) {
auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
if (render_frame) {
url_loader_factory_ = render_frame->CreateURLLoaderFactory();
}
}
return url_loader_factory_.get();
}
void CefFrameImpl::OnAttached() {
Send(new CefHostMsg_FrameAttached(MSG_ROUTING_NONE));
}
bool CefFrameImpl::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(CefFrameImpl, message)
IPC_MESSAGE_HANDLER(CefMsg_Request, OnRequest)
IPC_MESSAGE_HANDLER(CefMsg_Response, OnResponse)
IPC_MESSAGE_HANDLER(CefMsg_ResponseAck, OnResponseAck)
IPC_MESSAGE_HANDLER(CefMsg_LoadRequest, OnLoadRequest)
IPC_MESSAGE_HANDLER(CefMsg_DidStopLoading, OnDidStopLoading)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void CefFrameImpl::OnDidFinishLoad() {
// Ignore notifications from the embedded frame hosting a mime-type plugin.
// We'll eventually receive a notification from the owner frame.
if (blink_glue::HasPluginFrameOwner(frame_))
return;
blink::WebDocumentLoader* dl = frame_->GetDocumentLoader();
const int http_status_code = dl->GetResponse().HttpStatusCode();
Send(new CefHostMsg_DidFinishLoad(MSG_ROUTING_NONE, dl->GetUrl(),
http_status_code));
CefRefPtr<CefApp> app = CefContentClient::Get()->application();
if (app) {
CefRefPtr<CefRenderProcessHandler> handler = app->GetRenderProcessHandler();
if (handler) {
CefRefPtr<CefLoadHandler> load_handler = handler->GetLoadHandler();
if (load_handler) {
load_handler->OnLoadEnd(browser_, this, http_status_code);
}
}
}
}
void CefFrameImpl::OnDraggableRegionsChanged() {
blink::WebVector<blink::WebDraggableRegion> webregions =
frame_->GetDocument().DraggableRegions();
std::vector<Cef_DraggableRegion_Params> regions;
for (size_t i = 0; i < webregions.size(); ++i) {
Cef_DraggableRegion_Params region;
auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
render_frame->ConvertViewportToWindow(&webregions[i].bounds);
region.bounds = webregions[i].bounds;
region.draggable = webregions[i].draggable;
regions.push_back(region);
}
Send(new CefHostMsg_UpdateDraggableRegions(MSG_ROUTING_NONE, regions));
}
void CefFrameImpl::OnDetached() {
// The browser may hold the last reference to |this|. Take a reference here to
// keep |this| alive until after this method returns.
CefRefPtr<CefFrameImpl> self = this;
browser_->FrameDetached(frame_id_);
browser_ = nullptr;
frame_ = nullptr;
url_loader_factory_.reset();
response_manager_.reset();
}
void CefFrameImpl::ExecuteCommand(const std::string& command) {
CEF_REQUIRE_RT_RETURN_VOID();
if (frame_)
frame_->ExecuteCommand(blink::WebString::FromUTF8(command));
}
void CefFrameImpl::SendProcessMessage(CefProcessId target_process,
const std::string& name,
base::ListValue* arguments,
bool user_initiated) {
DCHECK_EQ(PID_BROWSER, target_process);
DCHECK(!name.empty());
if (!frame_)
return;
Cef_Request_Params params;
params.name = name;
if (arguments)
params.arguments.Swap(arguments);
params.user_initiated = user_initiated;
params.request_id = -1;
params.expect_response = false;
Send(new CefHostMsg_Request(MSG_ROUTING_NONE, params));
}
void CefFrameImpl::Send(IPC::Message* message) {
if (!frame_) {
delete message;
return;
}
auto render_frame = content::RenderFrame::FromWebFrame(frame_);
message->set_routing_id(render_frame->GetRoutingID());
render_frame->Send(message);
}
void CefFrameImpl::OnRequest(const Cef_Request_Params& params) {
DCHECK(browser_);
DCHECK(frame_);
bool success = false;
std::string response;
bool expect_response_ack = false;
TRACE_EVENT2("cef", "CefBrowserImpl::OnRequest", "request_id",
params.request_id, "expect_response",
params.expect_response ? 1 : 0);
if (params.user_initiated) {
// Give the user a chance to handle the request.
CefRefPtr<CefApp> app = CefContentClient::Get()->application();
if (app.get()) {
CefRefPtr<CefRenderProcessHandler> handler =
app->GetRenderProcessHandler();
if (handler.get()) {
CefRefPtr<CefProcessMessageImpl> message(new CefProcessMessageImpl(
const_cast<Cef_Request_Params*>(&params), false, true));
success = handler->OnProcessMessageReceived(browser_, this, PID_BROWSER,
message.get());
message->Detach(nullptr);
}
}
} else if (params.name == "execute-code") {
// Execute code.
DCHECK_EQ(params.arguments.GetSize(), (size_t)4);
bool is_javascript = false;
std::string code, script_url;
int script_start_line = 0;
params.arguments.GetBoolean(0, &is_javascript);
params.arguments.GetString(1, &code);
DCHECK(!code.empty());
params.arguments.GetString(2, &script_url);
params.arguments.GetInteger(3, &script_start_line);
DCHECK_GE(script_start_line, 0);
if (is_javascript) {
frame_->ExecuteScript(
blink::WebScriptSource(blink::WebString::FromUTF8(code),
GURL(script_url), script_start_line));
success = true;
} else {
// TODO(cef): implement support for CSS code.
NOTIMPLEMENTED();
}
} else if (params.name == "execute-command") {
// Execute command.
DCHECK_EQ(params.arguments.GetSize(), (size_t)1);
std::string command;
params.arguments.GetString(0, &command);
DCHECK(!command.empty());
if (base::LowerCaseEqualsASCII(command, "getsource")) {
response = blink::WebFrameContentDumper::DumpAsMarkup(frame_).Utf8();
success = true;
} else if (base::LowerCaseEqualsASCII(command, "gettext")) {
response = blink_glue::DumpDocumentText(frame_);
success = true;
} else if (frame_->ExecuteCommand(blink::WebString::FromUTF8(command))) {
success = true;
}
} else {
// Invalid request.
NOTREACHED();
}
if (params.expect_response) {
DCHECK_GE(params.request_id, 0);
// Send a response to the browser.
Cef_Response_Params response_params;
response_params.request_id = params.request_id;
response_params.success = success;
response_params.response = response;
response_params.expect_response_ack = expect_response_ack;
Send(new CefHostMsg_Response(MSG_ROUTING_NONE, response_params));
}
}
void CefFrameImpl::OnResponse(const Cef_Response_Params& params) {
response_manager_->RunHandler(params);
if (params.expect_response_ack)
Send(new CefHostMsg_ResponseAck(MSG_ROUTING_NONE, params.request_id));
}
void CefFrameImpl::OnResponseAck(int request_id) {
response_manager_->RunAckHandler(request_id);
}
void CefFrameImpl::OnDidStopLoading() {
// We should only receive this notification for the highest-level LocalFrame
// in this frame's in-process subtree. If there are multiple of these for the
// same browser then the other occurrences will be discarded in
// OnLoadingStateChange.
browser_->OnLoadingStateChange(false);
}
void CefFrameImpl::OnLoadRequest(const CefMsg_LoadRequest_Params& params) {
DCHECK(frame_);
blink::WebURLRequest request;
CefRequestImpl::Get(params, request);
frame_->StartNavigation(request);
}
// Enable deprecation warnings on Windows. See http://crbug.com/585142.
#if defined(OS_WIN)
#if defined(__clang__)
#pragma GCC diagnostic pop
#else
#pragma warning(pop)
#endif
#endif