cef/libcef/renderer/browser_impl.cc

399 lines
11 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2011 The Chromium 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/browser_impl.h"
#include <memory>
#include <string>
#include <vector>
#include "libcef/common/app_manager.h"
#include "libcef/renderer/blink_glue.h"
#include "libcef/renderer/render_frame_util.h"
#include "libcef/renderer/render_manager.h"
#include "libcef/renderer/thread_util.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/renderer/render_frame.h"
#include "content/renderer/document_state.h"
#include "content/renderer/navigation_state.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url_error.h"
#include "third_party/blink/public/platform/web_url_response.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_frame.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_security_policy.h"
#include "third_party/blink/public/web/web_view.h"
// CefBrowserImpl static methods.
// -----------------------------------------------------------------------------
// static
CefRefPtr<CefBrowserImpl> CefBrowserImpl::GetBrowserForView(
blink::WebView* view) {
return CefRenderManager::Get()->GetBrowserForView(view);
}
// static
CefRefPtr<CefBrowserImpl> CefBrowserImpl::GetBrowserForMainFrame(
blink::WebFrame* frame) {
return CefRenderManager::Get()->GetBrowserForMainFrame(frame);
}
// CefBrowser methods.
// -----------------------------------------------------------------------------
bool CefBrowserImpl::IsValid() {
CEF_REQUIRE_RT_RETURN(false);
return !!GetWebView();
}
CefRefPtr<CefBrowserHost> CefBrowserImpl::GetHost() {
DCHECK(false) << "GetHost cannot be called from the render process";
return nullptr;
}
bool CefBrowserImpl::CanGoBack() {
CEF_REQUIRE_RT_RETURN(false);
return blink_glue::CanGoBack(GetWebView());
}
void CefBrowserImpl::GoBack() {
CEF_REQUIRE_RT_RETURN_VOID();
blink_glue::GoBack(GetWebView());
}
bool CefBrowserImpl::CanGoForward() {
CEF_REQUIRE_RT_RETURN(false);
return blink_glue::CanGoForward(GetWebView());
}
void CefBrowserImpl::GoForward() {
CEF_REQUIRE_RT_RETURN_VOID();
blink_glue::GoForward(GetWebView());
}
bool CefBrowserImpl::IsLoading() {
CEF_REQUIRE_RT_RETURN(false);
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame) {
return main_frame->ToWebLocalFrame()->IsLoading();
}
}
return false;
}
void CefBrowserImpl::Reload() {
CEF_REQUIRE_RT_RETURN_VOID();
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame && main_frame->IsWebLocalFrame()) {
main_frame->ToWebLocalFrame()->StartReload(
blink::WebFrameLoadType::kReload);
}
}
}
void CefBrowserImpl::ReloadIgnoreCache() {
CEF_REQUIRE_RT_RETURN_VOID();
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame && main_frame->IsWebLocalFrame()) {
main_frame->ToWebLocalFrame()->StartReload(
blink::WebFrameLoadType::kReloadBypassingCache);
}
}
}
void CefBrowserImpl::StopLoad() {
CEF_REQUIRE_RT_RETURN_VOID();
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame && main_frame->IsWebLocalFrame()) {
main_frame->ToWebLocalFrame()->DeprecatedStopLoading();
}
}
}
int CefBrowserImpl::GetIdentifier() {
CEF_REQUIRE_RT_RETURN(0);
return browser_id();
}
bool CefBrowserImpl::IsSame(CefRefPtr<CefBrowser> that) {
CEF_REQUIRE_RT_RETURN(false);
CefBrowserImpl* impl = static_cast<CefBrowserImpl*>(that.get());
return (impl == this);
}
bool CefBrowserImpl::IsPopup() {
CEF_REQUIRE_RT_RETURN(false);
return is_popup();
}
bool CefBrowserImpl::HasDocument() {
CEF_REQUIRE_RT_RETURN(false);
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame && main_frame->IsWebLocalFrame()) {
return !main_frame->ToWebLocalFrame()->GetDocument().IsNull();
}
}
return false;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetMainFrame() {
CEF_REQUIRE_RT_RETURN(nullptr);
if (GetWebView()) {
blink::WebFrame* main_frame = GetWebView()->MainFrame();
if (main_frame && main_frame->IsWebLocalFrame()) {
return GetWebFrameImpl(main_frame->ToWebLocalFrame()).get();
}
}
return nullptr;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetFocusedFrame() {
CEF_REQUIRE_RT_RETURN(nullptr);
if (GetWebView() && GetWebView()->FocusedFrame()) {
return GetWebFrameImpl(GetWebView()->FocusedFrame()).get();
}
return nullptr;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetFrameByIdentifier(
const CefString& identifier) {
CEF_REQUIRE_RT_RETURN(nullptr);
return GetWebFrameImpl(identifier).get();
}
CefRefPtr<CefFrame> CefBrowserImpl::GetFrameByName(const CefString& name) {
CEF_REQUIRE_RT_RETURN(nullptr);
blink::WebView* web_view = GetWebView();
if (web_view) {
const blink::WebString& frame_name =
blink::WebString::FromUTF16(name.ToString16());
// Search by assigned frame name (Frame::name).
blink::WebFrame* frame = web_view->MainFrame();
if (frame && frame->IsWebLocalFrame()) {
frame = frame->ToWebLocalFrame()->FindFrameByName(frame_name);
}
if (!frame) {
// Search by unique frame name (Frame::uniqueName).
const std::string& searchname = name;
for (blink::WebFrame* cur_frame = web_view->MainFrame(); cur_frame;
cur_frame = cur_frame->TraverseNext()) {
if (cur_frame->IsWebLocalFrame() &&
render_frame_util::GetName(cur_frame->ToWebLocalFrame()) ==
searchname) {
frame = cur_frame;
break;
}
}
}
if (frame && frame->IsWebLocalFrame()) {
return GetWebFrameImpl(frame->ToWebLocalFrame()).get();
}
}
return nullptr;
}
size_t CefBrowserImpl::GetFrameCount() {
CEF_REQUIRE_RT_RETURN(0);
int count = 0;
if (GetWebView()) {
for (blink::WebFrame* frame = GetWebView()->MainFrame(); frame;
frame = frame->TraverseNext()) {
count++;
}
}
return count;
}
void CefBrowserImpl::GetFrameIdentifiers(std::vector<CefString>& identifiers) {
CEF_REQUIRE_RT_RETURN_VOID();
if (identifiers.size() > 0) {
identifiers.clear();
}
if (GetWebView()) {
for (blink::WebFrame* frame = GetWebView()->MainFrame(); frame;
frame = frame->TraverseNext()) {
if (frame->IsWebLocalFrame()) {
identifiers.push_back(
render_frame_util::GetIdentifier(frame->ToWebLocalFrame()));
}
}
}
}
void CefBrowserImpl::GetFrameNames(std::vector<CefString>& names) {
CEF_REQUIRE_RT_RETURN_VOID();
if (names.size() > 0) {
names.clear();
}
if (GetWebView()) {
for (blink::WebFrame* frame = GetWebView()->MainFrame(); frame;
frame = frame->TraverseNext()) {
if (frame->IsWebLocalFrame()) {
names.push_back(render_frame_util::GetName(frame->ToWebLocalFrame()));
}
}
}
}
// CefBrowserImpl public methods.
// -----------------------------------------------------------------------------
CefBrowserImpl::CefBrowserImpl(blink::WebView* web_view,
int browser_id,
bool is_popup,
bool is_windowless,
bool print_preview_enabled)
: blink::WebViewObserver(web_view),
browser_id_(browser_id),
is_popup_(is_popup),
is_windowless_(is_windowless),
print_preview_enabled_(print_preview_enabled) {}
CefBrowserImpl::~CefBrowserImpl() = default;
CefRefPtr<CefFrameImpl> CefBrowserImpl::GetWebFrameImpl(
blink::WebLocalFrame* frame) {
DCHECK(frame);
const auto& frame_token = frame->GetLocalFrameToken();
// Frames are re-used between page loads. Only add the frame to the map once.
FrameMap::const_iterator it = frames_.find(frame_token);
if (it != frames_.end()) {
return it->second;
}
CefRefPtr<CefFrameImpl> framePtr(new CefFrameImpl(this, frame));
frames_.insert(std::make_pair(frame_token, framePtr));
return framePtr;
}
CefRefPtr<CefFrameImpl> CefBrowserImpl::GetWebFrameImpl(
const std::string& identifier) {
const auto& frame_token =
render_frame_util::ParseFrameTokenFromIdentifier(identifier);
if (!frame_token) {
return nullptr;
}
// Check if we already know about the frame.
FrameMap::const_iterator it = frames_.find(*frame_token);
if (it != frames_.end()) {
return it->second;
}
if (GetWebView()) {
// Check if the frame exists but we don't know about it yet.
if (auto* local_frame =
blink::WebLocalFrame::FromFrameToken(*frame_token)) {
return GetWebFrameImpl(local_frame);
}
}
return nullptr;
}
// RenderViewObserver methods.
// -----------------------------------------------------------------------------
void CefBrowserImpl::OnDestruct() {
// Notify that the browser window has been destroyed.
CefRefPtr<CefApp> app = CefAppManager::Get()->GetApplication();
if (app.get()) {
CefRefPtr<CefRenderProcessHandler> handler = app->GetRenderProcessHandler();
if (handler.get()) {
handler->OnBrowserDestroyed(this);
}
}
CefRenderManager::Get()->OnBrowserDestroyed(this);
}
void CefBrowserImpl::FrameDetached(blink::WebLocalFrame* frame) {
frames_.erase(frame->GetLocalFrameToken());
}
void CefBrowserImpl::OnLoadingStateChange(bool isLoading) {
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::WebView* web_view = GetWebView();
const bool canGoBack = blink_glue::CanGoBack(web_view);
const bool canGoForward = blink_glue::CanGoForward(web_view);
// Don't call OnLoadingStateChange multiple times with the same status.
// This can occur in cases where there are multiple highest-level
// LocalFrames in-process for the same browser.
if (last_loading_state_ &&
last_loading_state_->IsMatch(isLoading, canGoBack, canGoForward)) {
return;
}
if (was_in_bfcache_) {
// Send the expected callbacks when exiting the BFCache.
DCHECK(!isLoading);
load_handler->OnLoadingStateChange(this, /*isLoading=*/true,
canGoBack, canGoForward);
auto main_frame = GetMainFrame();
load_handler->OnLoadStart(this, main_frame, TT_EXPLICIT);
load_handler->OnLoadEnd(this, main_frame, 0);
was_in_bfcache_ = false;
}
load_handler->OnLoadingStateChange(this, isLoading, canGoBack,
canGoForward);
last_loading_state_ =
std::make_unique<LoadingState>(isLoading, canGoBack, canGoForward);
}
}
}
}
void CefBrowserImpl::OnEnterBFCache() {
// Reset loading state so that notifications will be resent if/when exiting
// BFCache.
was_in_bfcache_ = true;
last_loading_state_.reset();
}