cef/libcef/renderer/render_frame_observer.cc

271 lines
7.9 KiB
C++

// Copyright 2014 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 "build/build_config.h"
// Enable deprecation warnings on Windows. See http://crbug.com/585142.
#if BUILDFLAG(IS_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/renderer/render_frame_observer.h"
#include "libcef/common/app_manager.h"
#include "libcef/renderer/blink_glue.h"
#include "libcef/renderer/browser_impl.h"
#include "libcef/renderer/dom_document_impl.h"
#include "libcef/renderer/v8_impl.h"
#include "content/public/renderer/render_frame.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_element.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_node.h"
CefRenderFrameObserver::CefRenderFrameObserver(
content::RenderFrame* render_frame)
: content::RenderFrameObserver(render_frame) {}
CefRenderFrameObserver::~CefRenderFrameObserver() = default;
void CefRenderFrameObserver::DidCommitProvisionalLoad(
ui::PageTransition transition) {
if (!frame_) {
return;
}
frame_->OnDidCommitProvisionalLoad();
if (frame_->GetParent() == nullptr) {
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
browserPtr->OnLoadingStateChange(true);
}
OnLoadStart();
}
void CefRenderFrameObserver::WasShown() {
if (frame_) {
frame_->OnWasShown();
}
}
void CefRenderFrameObserver::DidFailProvisionalLoad() {
if (frame_) {
OnLoadError();
}
}
void CefRenderFrameObserver::DidFinishLoad() {
if (frame_) {
frame_->OnDidFinishLoad();
}
}
void CefRenderFrameObserver::WillDetach() {
if (frame_) {
frame_->OnDetached();
frame_ = nullptr;
}
}
void CefRenderFrameObserver::FocusedElementChanged(
const blink::WebElement& element) {
if (!frame_) {
return;
}
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
if (!browserPtr) {
return;
}
CefRefPtr<CefRenderProcessHandler> handler;
CefRefPtr<CefApp> application = CefAppManager::Get()->GetApplication();
if (application) {
handler = application->GetRenderProcessHandler();
}
if (!handler) {
return;
}
CefRefPtr<CefFrameImpl> framePtr = browserPtr->GetWebFrameImpl(frame);
if (element.IsNull()) {
handler->OnFocusedNodeChanged(browserPtr.get(), framePtr.get(), nullptr);
return;
}
if (element.GetDocument().IsNull()) {
return;
}
CefRefPtr<CefDOMDocumentImpl> documentImpl =
new CefDOMDocumentImpl(browserPtr.get(), frame);
handler->OnFocusedNodeChanged(browserPtr.get(), framePtr.get(),
documentImpl->GetOrCreateNode(element));
documentImpl->Detach();
}
void CefRenderFrameObserver::DraggableRegionsChanged() {
if (frame_) {
frame_->OnDraggableRegionsChanged();
}
}
void CefRenderFrameObserver::DidCreateScriptContext(
v8::Handle<v8::Context> context,
int world_id) {
if (!frame_) {
return;
}
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
if (!browserPtr) {
return;
}
CefRefPtr<CefRenderProcessHandler> handler;
CefRefPtr<CefApp> application = CefAppManager::Get()->GetApplication();
if (application) {
handler = application->GetRenderProcessHandler();
}
CefRefPtr<CefFrameImpl> framePtr = browserPtr->GetWebFrameImpl(frame);
if (handler) {
v8::Isolate* isolate = blink::MainThreadIsolate();
v8::HandleScope handle_scope(isolate);
v8::Context::Scope scope(context);
v8::MicrotasksScope microtasks_scope(isolate,
v8::MicrotasksScope::kRunMicrotasks);
CefRefPtr<CefV8Context> contextPtr(new CefV8ContextImpl(isolate, context));
handler->OnContextCreated(browserPtr.get(), framePtr.get(), contextPtr);
}
// Do this last, in case the client callback modified the window object.
framePtr->OnContextCreated(context);
}
void CefRenderFrameObserver::WillReleaseScriptContext(
v8::Handle<v8::Context> context,
int world_id) {
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
if (!browserPtr) {
return;
}
CefRefPtr<CefRenderProcessHandler> handler;
CefRefPtr<CefApp> application = CefAppManager::Get()->GetApplication();
if (application) {
handler = application->GetRenderProcessHandler();
}
CefRefPtr<CefFrameImpl> framePtr = browserPtr->GetWebFrameImpl(frame);
if (handler) {
v8::Isolate* isolate = blink::MainThreadIsolate();
v8::HandleScope handle_scope(isolate);
// The released context should not be used for script execution.
// Depending on how the context is released this may or may not already
// be set.
blink_glue::CefScriptForbiddenScope forbidScript;
CefRefPtr<CefV8Context> contextPtr(new CefV8ContextImpl(isolate, context));
handler->OnContextReleased(browserPtr.get(), framePtr.get(), contextPtr);
}
framePtr->OnContextReleased();
CefV8ReleaseContext(context);
}
void CefRenderFrameObserver::OnDestruct() {
delete this;
}
void CefRenderFrameObserver::OnInterfaceRequestForFrame(
const std::string& interface_name,
mojo::ScopedMessagePipeHandle* interface_pipe) {
registry_.TryBindInterface(interface_name, interface_pipe);
}
bool CefRenderFrameObserver::OnAssociatedInterfaceRequestForFrame(
const std::string& interface_name,
mojo::ScopedInterfaceEndpointHandle* handle) {
return associated_interfaces_.TryBindInterface(interface_name, handle);
}
void CefRenderFrameObserver::AttachFrame(CefFrameImpl* frame) {
DCHECK(frame);
DCHECK(!frame_);
frame_ = frame;
frame_->OnAttached();
}
void CefRenderFrameObserver::OnLoadStart() {
CefRefPtr<CefApp> app = CefAppManager::Get()->GetApplication();
if (app.get()) {
CefRefPtr<CefRenderProcessHandler> handler = app->GetRenderProcessHandler();
if (handler.get()) {
CefRefPtr<CefLoadHandler> load_handler = handler->GetLoadHandler();
if (load_handler.get()) {
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
load_handler->OnLoadStart(browserPtr.get(), frame_, TT_EXPLICIT);
}
}
}
}
void CefRenderFrameObserver::OnLoadError() {
CefRefPtr<CefApp> app = CefAppManager::Get()->GetApplication();
if (app.get()) {
CefRefPtr<CefRenderProcessHandler> handler = app->GetRenderProcessHandler();
if (handler.get()) {
CefRefPtr<CefLoadHandler> load_handler = handler->GetLoadHandler();
// Error codes were removed from DidFailProvisionalLoad() so we now always
// pass the same value.
if (load_handler.get()) {
const cef_errorcode_t errorCode =
static_cast<cef_errorcode_t>(net::ERR_ABORTED);
const std::string& errorText = net::ErrorToString(errorCode);
blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
CefRefPtr<CefBrowserImpl> browserPtr =
CefBrowserImpl::GetBrowserForMainFrame(frame->Top());
load_handler->OnLoadError(browserPtr.get(), frame_, errorCode,
errorText, frame_->GetURL());
}
}
}
}
// Enable deprecation warnings on Windows. See http://crbug.com/585142.
#if BUILDFLAG(IS_WIN)
#if defined(__clang__)
#pragma GCC diagnostic pop
#else
#pragma warning(pop)
#endif
#endif