mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2025-01-10 17:23:26 +01:00
e411b513be
See the new cef_frame_handler.h for complete usage documentation. This change includes the following related enhancements: - The newly added CefBrowser::IsValid method will return false (in the browser process) after CefLifeSpanHandler::OnBeforeClose is called. - CefBrowser::GetMainFrame will return a valid object (in the browser process) until after CefLifeSpanHandler::OnBeforeClose is called. - The main frame object will change during cross-origin navigation or re-navigation after renderer process termination. During that time, GetMainFrame will return the new/pending frame (in the browser process) and any messages that arrive for the new/pending frame will be correctly attributed in OnProcessMessageReceived. - Commands to be executed in the renderer process that may fail during early frame initialization (ExecuteJavaScript, LoadRequest, etc.) will now be queued until after the JavaScript context for the frame has been created. - Logging has been added for any commands that are dropped because they arrived after frame detachment.
532 lines
16 KiB
C++
532 lines
16 KiB
C++
// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that can
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// be found in the LICENSE file.
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#include "libcef/renderer/frame_impl.h"
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#include "base/compiler_specific.h"
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// Enable deprecation warnings on Windows. See http://crbug.com/585142.
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#if defined(OS_WIN)
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#if defined(__clang__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic error "-Wdeprecated-declarations"
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#else
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#pragma warning(push)
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#pragma warning(default : 4996)
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#endif
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#endif
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#include "libcef/common/app_manager.h"
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#include "libcef/common/frame_util.h"
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#include "libcef/common/net/http_header_utils.h"
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#include "libcef/common/process_message_impl.h"
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#include "libcef/common/request_impl.h"
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#include "libcef/common/string_util.h"
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#include "libcef/renderer/blink_glue.h"
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#include "libcef/renderer/browser_impl.h"
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#include "libcef/renderer/dom_document_impl.h"
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#include "libcef/renderer/render_frame_util.h"
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#include "libcef/renderer/render_urlrequest_impl.h"
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#include "libcef/renderer/thread_util.h"
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#include "libcef/renderer/v8_impl.h"
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#include "base/strings/utf_string_conversions.h"
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#include "content/public/renderer/render_view.h"
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#include "content/renderer/render_frame_impl.h"
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#include "third_party/blink/public/mojom/frame/frame.mojom-blink.h"
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#include "third_party/blink/public/platform/web_back_forward_cache_loader_helper.h"
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#include "third_party/blink/public/platform/web_data.h"
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#include "third_party/blink/public/platform/web_string.h"
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#include "third_party/blink/public/platform/web_url.h"
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#include "third_party/blink/public/web/blink.h"
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#include "third_party/blink/public/web/web_document.h"
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#include "third_party/blink/public/web/web_document_loader.h"
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#include "third_party/blink/public/web/web_frame_content_dumper.h"
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#include "third_party/blink/public/web/web_local_frame.h"
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#include "third_party/blink/public/web/web_navigation_control.h"
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#include "third_party/blink/public/web/web_script_source.h"
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#include "third_party/blink/public/web/web_view.h"
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CefFrameImpl::CefFrameImpl(CefBrowserImpl* browser,
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blink::WebLocalFrame* frame,
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int64_t frame_id)
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: browser_(browser), frame_(frame), frame_id_(frame_id) {}
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CefFrameImpl::~CefFrameImpl() {}
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bool CefFrameImpl::IsValid() {
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CEF_REQUIRE_RT_RETURN(false);
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return (frame_ != nullptr);
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}
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void CefFrameImpl::Undo() {
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SendCommand("Undo");
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}
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void CefFrameImpl::Redo() {
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SendCommand("Redo");
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}
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void CefFrameImpl::Cut() {
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SendCommand("Cut");
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}
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void CefFrameImpl::Copy() {
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SendCommand("Copy");
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}
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void CefFrameImpl::Paste() {
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SendCommand("Paste");
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}
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void CefFrameImpl::Delete() {
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SendCommand("Delete");
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}
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void CefFrameImpl::SelectAll() {
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SendCommand("SelectAll");
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}
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void CefFrameImpl::ViewSource() {
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NOTREACHED() << "ViewSource cannot be called from the renderer process";
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}
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void CefFrameImpl::GetSource(CefRefPtr<CefStringVisitor> visitor) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (frame_) {
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CefString content;
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string_util::GetCefString(blink_glue::DumpDocumentMarkup(frame_), content);
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visitor->Visit(content);
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}
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}
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void CefFrameImpl::GetText(CefRefPtr<CefStringVisitor> visitor) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (frame_) {
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CefString content;
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string_util::GetCefString(blink_glue::DumpDocumentText(frame_), content);
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visitor->Visit(content);
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}
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}
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void CefFrameImpl::LoadRequest(CefRefPtr<CefRequest> request) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (!frame_)
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return;
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auto params = cef::mojom::RequestParams::New();
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static_cast<CefRequestImpl*>(request.get())->Get(params);
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LoadRequest(std::move(params));
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}
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void CefFrameImpl::LoadURL(const CefString& url) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (!frame_)
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return;
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auto params = cef::mojom::RequestParams::New();
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params->url = GURL(url.ToString());
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params->method = "GET";
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LoadRequest(std::move(params));
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}
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void CefFrameImpl::ExecuteJavaScript(const CefString& jsCode,
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const CefString& scriptUrl,
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int startLine) {
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SendJavaScript(jsCode, scriptUrl, startLine);
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}
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bool CefFrameImpl::IsMain() {
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CEF_REQUIRE_RT_RETURN(false);
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if (frame_)
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return (frame_->Parent() == nullptr);
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return false;
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}
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bool CefFrameImpl::IsFocused() {
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CEF_REQUIRE_RT_RETURN(false);
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if (frame_ && frame_->View())
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return (frame_->View()->FocusedFrame() == frame_);
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return false;
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}
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CefString CefFrameImpl::GetName() {
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CefString name;
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CEF_REQUIRE_RT_RETURN(name);
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if (frame_)
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name = render_frame_util::GetName(frame_);
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return name;
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}
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int64 CefFrameImpl::GetIdentifier() {
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CEF_REQUIRE_RT_RETURN(0);
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return frame_id_;
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}
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CefRefPtr<CefFrame> CefFrameImpl::GetParent() {
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CEF_REQUIRE_RT_RETURN(nullptr);
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if (frame_) {
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blink::WebFrame* parent = frame_->Parent();
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if (parent && parent->IsWebLocalFrame())
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return browser_->GetWebFrameImpl(parent->ToWebLocalFrame()).get();
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}
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return nullptr;
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}
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CefString CefFrameImpl::GetURL() {
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CefString url;
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CEF_REQUIRE_RT_RETURN(url);
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if (frame_) {
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GURL gurl = frame_->GetDocument().Url();
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url = gurl.spec();
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}
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return url;
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}
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CefRefPtr<CefBrowser> CefFrameImpl::GetBrowser() {
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CEF_REQUIRE_RT_RETURN(nullptr);
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return browser_;
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}
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CefRefPtr<CefV8Context> CefFrameImpl::GetV8Context() {
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CEF_REQUIRE_RT_RETURN(nullptr);
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if (frame_) {
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v8::Isolate* isolate = blink::MainThreadIsolate();
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v8::HandleScope handle_scope(isolate);
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return new CefV8ContextImpl(isolate, frame_->MainWorldScriptContext());
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} else {
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return nullptr;
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}
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}
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void CefFrameImpl::VisitDOM(CefRefPtr<CefDOMVisitor> visitor) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (!frame_)
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return;
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// Create a CefDOMDocumentImpl object that is valid only for the scope of this
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// method.
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CefRefPtr<CefDOMDocumentImpl> documentImpl;
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const blink::WebDocument& document = frame_->GetDocument();
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if (!document.IsNull())
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documentImpl = new CefDOMDocumentImpl(browser_, frame_);
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visitor->Visit(documentImpl.get());
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if (documentImpl.get())
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documentImpl->Detach();
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}
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CefRefPtr<CefURLRequest> CefFrameImpl::CreateURLRequest(
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefURLRequestClient> client) {
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CEF_REQUIRE_RT_RETURN(nullptr);
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if (!request || !client || !frame_)
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return nullptr;
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CefRefPtr<CefRenderURLRequest> impl =
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new CefRenderURLRequest(this, request, client);
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if (impl->Start())
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return impl.get();
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return nullptr;
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}
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void CefFrameImpl::SendProcessMessage(CefProcessId target_process,
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CefRefPtr<CefProcessMessage> message) {
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CEF_REQUIRE_RT_RETURN_VOID();
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DCHECK_EQ(PID_BROWSER, target_process);
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DCHECK(message && message->IsValid());
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if (!message || !message->IsValid())
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return;
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if (!frame_)
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return;
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auto& browser_frame = GetBrowserFrame();
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if (!browser_frame)
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return;
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auto impl = static_cast<CefProcessMessageImpl*>(message.get());
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browser_frame->SendMessage(impl->GetName(), impl->TakeArgumentList());
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}
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std::unique_ptr<blink::WebURLLoader> CefFrameImpl::CreateURLLoader() {
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CEF_REQUIRE_RT();
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if (!frame_)
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return nullptr;
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if (!url_loader_factory_) {
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auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
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if (render_frame) {
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url_loader_factory_ = render_frame->CreateURLLoaderFactory();
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}
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}
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if (!url_loader_factory_)
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return nullptr;
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// KeepAlive is not supported.
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mojo::PendingRemote<blink::mojom::KeepAliveHandle> keep_alive_handle =
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mojo::NullRemote();
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return url_loader_factory_->CreateURLLoader(
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blink::WebURLRequest(),
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blink_glue::CreateResourceLoadingTaskRunnerHandle(frame_),
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blink_glue::CreateResourceLoadingMaybeUnfreezableTaskRunnerHandle(frame_),
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std::move(keep_alive_handle), blink::WebBackForwardCacheLoaderHelper());
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}
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std::unique_ptr<blink::ResourceLoadInfoNotifierWrapper>
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CefFrameImpl::CreateResourceLoadInfoNotifierWrapper() {
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CEF_REQUIRE_RT();
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if (frame_) {
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auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
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if (render_frame)
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return render_frame->CreateResourceLoadInfoNotifierWrapper();
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}
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return nullptr;
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}
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void CefFrameImpl::OnAttached(service_manager::BinderRegistry* registry) {
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// Called indirectly from RenderFrameCreated.
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registry->AddInterface(base::BindRepeating(
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&CefFrameImpl::BindRenderFrameReceiver, weak_ptr_factory_.GetWeakPtr()));
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auto& browser_frame = GetBrowserFrame();
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if (browser_frame) {
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browser_frame->FrameAttached();
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}
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}
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void CefFrameImpl::OnDidFinishLoad() {
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// Ignore notifications from the embedded frame hosting a mime-type plugin.
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// We'll eventually receive a notification from the owner frame.
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if (blink_glue::HasPluginFrameOwner(frame_))
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return;
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blink::WebDocumentLoader* dl = frame_->GetDocumentLoader();
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const int http_status_code = dl->GetResponse().HttpStatusCode();
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auto& browser_frame = GetBrowserFrame();
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if (browser_frame) {
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browser_frame->DidFinishFrameLoad(dl->GetUrl(), http_status_code);
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}
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CefRefPtr<CefApp> app = CefAppManager::Get()->GetApplication();
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if (app) {
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CefRefPtr<CefRenderProcessHandler> handler = app->GetRenderProcessHandler();
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if (handler) {
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CefRefPtr<CefLoadHandler> load_handler = handler->GetLoadHandler();
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if (load_handler) {
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load_handler->OnLoadEnd(browser_, this, http_status_code);
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}
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}
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}
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}
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void CefFrameImpl::OnDraggableRegionsChanged() {
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blink::WebVector<blink::WebDraggableRegion> webregions =
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frame_->GetDocument().DraggableRegions();
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std::vector<cef::mojom::DraggableRegionEntryPtr> regions;
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if (!webregions.empty()) {
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auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
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regions.reserve(webregions.size());
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for (const auto& webregion : webregions) {
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auto region = cef::mojom::DraggableRegionEntry::New(webregion.bounds,
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webregion.draggable);
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render_frame->ConvertViewportToWindow(®ion->bounds);
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regions.push_back(std::move(region));
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}
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}
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auto& browser_frame = GetBrowserFrame();
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if (browser_frame) {
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browser_frame->UpdateDraggableRegions(
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regions.empty() ? base::nullopt
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: base::make_optional(std::move(regions)));
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}
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}
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void CefFrameImpl::OnContextCreated() {
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context_created_ = true;
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CHECK(frame_);
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while (!queued_actions_.empty()) {
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auto& action = queued_actions_.front();
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std::move(action.second).Run(frame_);
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queued_actions_.pop();
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}
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}
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void CefFrameImpl::OnDetached() {
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// Called when this frame has been detached from the view. This *will* be
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// called for child frames when a parent frame is detached.
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// The browser may hold the last reference to |this|. Take a reference here to
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// keep |this| alive until after this method returns.
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CefRefPtr<CefFrameImpl> self = this;
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browser_->FrameDetached(frame_id_);
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receivers_.Clear();
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browser_frame_.reset();
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browser_ = nullptr;
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frame_ = nullptr;
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url_loader_factory_.reset();
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// In case we're destroyed without the context being created.
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while (!queued_actions_.empty()) {
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auto& action = queued_actions_.front();
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LOG(WARNING) << action.first << " sent to detached frame "
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<< frame_util::GetFrameDebugString(frame_id_)
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<< " will be ignored";
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queued_actions_.pop();
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}
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}
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void CefFrameImpl::ExecuteOnLocalFrame(const std::string& function_name,
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LocalFrameAction action) {
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CEF_REQUIRE_RT_RETURN_VOID();
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if (!context_created_) {
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queued_actions_.push(std::make_pair(function_name, std::move(action)));
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return;
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}
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if (frame_) {
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std::move(action).Run(frame_);
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} else {
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LOG(WARNING) << function_name << " sent to detached frame "
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<< frame_util::GetFrameDebugString(frame_id_)
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<< " will be ignored";
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}
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}
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const mojo::Remote<cef::mojom::BrowserFrame>& CefFrameImpl::GetBrowserFrame() {
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if (!browser_frame_.is_bound()) {
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auto render_frame = content::RenderFrameImpl::FromWebFrame(frame_);
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if (render_frame) {
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// Triggers creation of a CefBrowserFrame in the browser process.
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render_frame->GetBrowserInterfaceBroker()->GetInterface(
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browser_frame_.BindNewPipeAndPassReceiver());
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}
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}
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return browser_frame_;
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}
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void CefFrameImpl::BindRenderFrameReceiver(
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mojo::PendingReceiver<cef::mojom::RenderFrame> receiver) {
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receivers_.Add(this, std::move(receiver));
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}
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void CefFrameImpl::SendMessage(const std::string& name, base::Value arguments) {
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if (auto app = CefAppManager::Get()->GetApplication()) {
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if (auto handler = app->GetRenderProcessHandler()) {
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auto& list_value = base::Value::AsListValue(arguments);
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CefRefPtr<CefProcessMessageImpl> message(new CefProcessMessageImpl(
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name, std::move(const_cast<base::ListValue&>(list_value)),
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/*read_only=*/true));
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handler->OnProcessMessageReceived(browser_, this, PID_BROWSER,
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message.get());
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}
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}
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}
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void CefFrameImpl::SendCommand(const std::string& command) {
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ExecuteOnLocalFrame(
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__FUNCTION__,
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base::BindOnce(
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[](const std::string& command, blink::WebLocalFrame* frame) {
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frame->ExecuteCommand(blink::WebString::FromUTF8(command));
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},
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command));
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}
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void CefFrameImpl::SendCommandWithResponse(
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const std::string& command,
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cef::mojom::RenderFrame::SendCommandWithResponseCallback callback) {
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ExecuteOnLocalFrame(
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__FUNCTION__,
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base::BindOnce(
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[](const std::string& command,
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cef::mojom::RenderFrame::SendCommandWithResponseCallback callback,
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blink::WebLocalFrame* frame) {
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blink::WebString response;
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if (base::LowerCaseEqualsASCII(command, "getsource")) {
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response = blink_glue::DumpDocumentMarkup(frame);
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} else if (base::LowerCaseEqualsASCII(command, "gettext")) {
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response = blink_glue::DumpDocumentText(frame);
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}
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std::move(callback).Run(
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string_util::CreateSharedMemoryRegion(response));
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},
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command, std::move(callback)));
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}
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void CefFrameImpl::SendJavaScript(const std::u16string& jsCode,
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const std::string& scriptUrl,
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int32_t startLine) {
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ExecuteOnLocalFrame(
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__FUNCTION__,
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base::BindOnce(
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[](const std::u16string& jsCode, const std::string& scriptUrl,
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int32_t startLine, blink::WebLocalFrame* frame) {
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frame->ExecuteScript(
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blink::WebScriptSource(blink::WebString::FromUTF16(jsCode),
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GURL(scriptUrl), startLine));
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},
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jsCode, scriptUrl, startLine));
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}
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void CefFrameImpl::LoadRequest(cef::mojom::RequestParamsPtr params) {
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ExecuteOnLocalFrame(
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__FUNCTION__,
|
|
base::BindOnce(
|
|
[](cef::mojom::RequestParamsPtr params, blink::WebLocalFrame* frame) {
|
|
blink::WebURLRequest request;
|
|
CefRequestImpl::Get(params, request);
|
|
blink_glue::StartNavigation(frame, request);
|
|
},
|
|
std::move(params)));
|
|
}
|
|
|
|
void CefFrameImpl::DidStopLoading() {
|
|
// 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::MoveOrResizeStarted() {
|
|
if (frame_) {
|
|
auto web_view = frame_->View();
|
|
if (web_view)
|
|
web_view->CancelPagePopup();
|
|
}
|
|
}
|
|
|
|
// 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
|