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cef/libcef/browser/browser_host_impl.cc
Marshall Greenblatt 06e73fff15 Implement Views framework on Windows and Linux (issue #1749). 
- Add Views header files in a new include/views directory.
- Add initial top-level window (CefWindow), control (CefBrowserView,
  CefLabelButton, CefMenuButton, CefPanel, CefScrollView,
  CefTextfield) and layout (CefBoxLayout, CefFlowLayout) support.
  See libcef/browser/views/view_impl.h comments for implementation
  details.
- Add Views example usage in cefclient and cefsimple and Views unit
  tests in cef_unittests. Pass the `--use-views` command-line flag to
  cefclient, cefsimple and cef_unittests to run using the Views
  framework instead of platform APIs. For cefclient and cefsimple
  this will create the browser window and all related functionality
  using the Views framework. For cef_unittests this will run all
  tests (except OSR tests) in a Views-based browser window. Views-
  specific unit tests (`--gtest_filter=Views*`) will be run even if
  the the `--use-views` flag is not specified.
- Pass the `--hide-frame` command-line flag to cefclient to demo a
  frameless Views-based browser window.
- Pass the `--hide-controls` command-line flag to cefclient to demo a
  browser window without top controls. This also works in non-Views
  mode.
- Pass the `--enable-high-dpi-support` command-line flag to
  cef_unittests on Windows to test high-DPI support on a display
  that supports it.
- Add CefImage for reading/writing image file formats.
- Add CefBrowser::DownloadImage() for downloading image URLs as a
  CefImage representation. This is primarily for loading favicons.
- Add CefMenuModel::CreateMenuModel() and CefMenuModelDelegate for
  creating custom menus. This is primarily for use with
  CefMenuButton.
- Add CefBrowser::TryCloseBrowser() helper for closing a browser.
  Also improve related documentation in cef_life_span_handler.h.
- Rename cef_page_range_t to cef_range_t. It is now also used by
  CefTextfield.
- Remove CefLifeSpanHandler::RunModal() which is never called.
- Add draggable regions example to cefclient.
2016-04-26 11:58:13 -04:00

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// 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/browser/browser_host_impl.h"
#include <string>
#include <utility>
#include "libcef/browser/browser_context_impl.h"
#include "libcef/browser/browser_info.h"
#include "libcef/browser/browser_info_manager.h"
#include "libcef/browser/browser_platform_delegate.h"
#include "libcef/browser/browser_util.h"
#include "libcef/browser/content_browser_client.h"
#include "libcef/browser/context.h"
#include "libcef/browser/devtools_delegate.h"
#include "libcef/browser/devtools_frontend.h"
#include "libcef/browser/extensions/browser_extensions_util.h"
#include "libcef/browser/image_impl.h"
#include "libcef/browser/media_capture_devices_dispatcher.h"
#include "libcef/browser/navigate_params.h"
#include "libcef/browser/navigation_entry_impl.h"
#include "libcef/browser/net/chrome_scheme_handler.h"
#include "libcef/browser/net/scheme_handler.h"
#include "libcef/browser/osr/osr_util.h"
#include "libcef/browser/printing/print_view_manager.h"
#include "libcef/browser/request_context_impl.h"
#include "libcef/browser/thread_util.h"
#include "libcef/common/cef_messages.h"
#include "libcef/common/cef_switches.h"
#include "libcef/common/drag_data_impl.h"
#include "libcef/common/extensions/extensions_util.h"
#include "libcef/common/main_delegate.h"
#include "libcef/common/process_message_impl.h"
#include "libcef/common/request_impl.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "chrome/browser/spellchecker/spellcheck_factory.h"
#include "chrome/browser/spellchecker/spellcheck_service.h"
#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/gpu/compositor_util.h"
#include "content/common/view_messages.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/download_url_parameters.h"
#include "content/public/browser/host_zoom_map.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/resource_request_info.h"
#include "third_party/WebKit/public/web/WebFindOptions.h"
#if defined(OS_MACOSX)
#include "chrome/browser/spellchecker/spellcheck_platform.h"
#endif
namespace {
// Associates a CefBrowserHostImpl instance with a WebContents. This object will
// be deleted automatically when the WebContents is destroyed.
class WebContentsUserDataAdapter : public base::SupportsUserData::Data {
public:
static void Register(CefBrowserHostImpl* browser) {
new WebContentsUserDataAdapter(browser);
}
static CefBrowserHostImpl* Get(const content::WebContents* web_contents) {
WebContentsUserDataAdapter* adapter =
static_cast<WebContentsUserDataAdapter*>(
web_contents->GetUserData(UserDataKey()));
if (adapter)
return adapter->browser_;
return nullptr;
}
private:
WebContentsUserDataAdapter(CefBrowserHostImpl* browser)
: browser_(browser) {
browser->web_contents()->SetUserData(UserDataKey(), this);
}
static void* UserDataKey() {
// We just need a unique constant. Use the address of a static that
// COMDAT folding won't touch in an optimizing linker.
static int data_key = 0;
return reinterpret_cast<void*>(&data_key);
}
CefBrowserHostImpl* browser_; // Not owned.
};
class CreateBrowserHelper {
public:
CreateBrowserHelper(const CefWindowInfo& windowInfo,
CefRefPtr<CefClient> client,
const CefString& url,
const CefBrowserSettings& settings,
CefRefPtr<CefRequestContext> request_context)
: window_info_(windowInfo),
client_(client),
url_(url),
settings_(settings),
request_context_(request_context) {}
CefWindowInfo window_info_;
CefRefPtr<CefClient> client_;
CefString url_;
CefBrowserSettings settings_;
CefRefPtr<CefRequestContext> request_context_;
};
void CreateBrowserWithHelper(CreateBrowserHelper* helper) {
CefBrowserHost::CreateBrowserSync(helper->window_info_, helper->client_,
helper->url_, helper->settings_, helper->request_context_);
delete helper;
}
class ShowDevToolsHelper {
public:
ShowDevToolsHelper(CefRefPtr<CefBrowserHostImpl> browser,
const CefWindowInfo& windowInfo,
CefRefPtr<CefClient> client,
const CefBrowserSettings& settings,
const CefPoint& inspect_element_at)
: browser_(browser),
window_info_(windowInfo),
client_(client),
settings_(settings),
inspect_element_at_(inspect_element_at) {}
CefRefPtr<CefBrowserHostImpl> browser_;
CefWindowInfo window_info_;
CefRefPtr<CefClient> client_;
CefBrowserSettings settings_;
CefPoint inspect_element_at_;
};
void ShowDevToolsWithHelper(ShowDevToolsHelper* helper) {
helper->browser_->ShowDevTools(helper->window_info_, helper->client_,
helper->settings_, helper->inspect_element_at_);
delete helper;
}
// Callback from CefBrowserHostImpl::DownloadImage.
void OnDownloadImage(uint32 max_image_size,
CefRefPtr<CefDownloadImageCallback> callback,
int id,
int http_status_code,
const GURL& image_url,
const std::vector<SkBitmap>& bitmaps,
const std::vector<gfx::Size>& sizes) {
CEF_REQUIRE_UIT();
CefRefPtr<CefImageImpl> image_impl;
if (!bitmaps.empty()) {
image_impl = new CefImageImpl();
image_impl->AddBitmaps(max_image_size, bitmaps);
}
callback->OnDownloadImageFinished(image_url.spec(), http_status_code,
image_impl.get());
}
} // namespace
// CefBrowserHost static methods.
// -----------------------------------------------------------------------------
// static
bool CefBrowserHost::CreateBrowser(
const CefWindowInfo& windowInfo,
CefRefPtr<CefClient> client,
const CefString& url,
const CefBrowserSettings& settings,
CefRefPtr<CefRequestContext> request_context) {
// Verify that the context is in a valid state.
if (!CONTEXT_STATE_VALID()) {
NOTREACHED() << "context not valid";
return false;
}
// Verify that the settings structure is a valid size.
if (settings.size != sizeof(cef_browser_settings_t)) {
NOTREACHED() << "invalid CefBrowserSettings structure size";
return false;
}
// Verify windowless rendering requirements.
if (windowInfo.windowless_rendering_enabled &&
!client->GetRenderHandler().get()) {
NOTREACHED() << "CefRenderHandler implementation is required";
return false;
}
// Create the browser on the UI thread.
CreateBrowserHelper* helper =
new CreateBrowserHelper(windowInfo, client, url, settings,
request_context);
CEF_POST_TASK(CEF_UIT, base::Bind(CreateBrowserWithHelper, helper));
return true;
}
// static
CefRefPtr<CefBrowser> CefBrowserHost::CreateBrowserSync(
const CefWindowInfo& windowInfo,
CefRefPtr<CefClient> client,
const CefString& url,
const CefBrowserSettings& settings,
CefRefPtr<CefRequestContext> request_context) {
// Verify that the context is in a valid state.
if (!CONTEXT_STATE_VALID()) {
NOTREACHED() << "context not valid";
return nullptr;
}
// Verify that the settings structure is a valid size.
if (settings.size != sizeof(cef_browser_settings_t)) {
NOTREACHED() << "invalid CefBrowserSettings structure size";
return nullptr;
}
// Verify that this method is being called on the UI thread.
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "called on invalid thread";
return nullptr;
}
// Verify windowless rendering requirements.
if (windowInfo.windowless_rendering_enabled &&
!client->GetRenderHandler().get()) {
NOTREACHED() << "CefRenderHandler implementation is required";
return nullptr;
}
CefBrowserHostImpl::CreateParams create_params;
create_params.window_info.reset(new CefWindowInfo(windowInfo));
create_params.client = client;
create_params.url = url;
create_params.settings = settings;
create_params.request_context = request_context;
CefRefPtr<CefBrowserHostImpl> browser =
CefBrowserHostImpl::Create(create_params);
return browser.get();
}
// CefBrowserHostImpl static methods.
// -----------------------------------------------------------------------------
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::Create(
CreateParams& create_params) {
scoped_ptr<CefBrowserPlatformDelegate> platform_delegate =
CefBrowserPlatformDelegate::Create(create_params);
CHECK(platform_delegate);
const bool is_devtools_popup = !!create_params.devtools_opener;
scoped_refptr<CefBrowserInfo> info =
CefBrowserInfoManager::GetInstance()->CreateBrowserInfo(
is_devtools_popup,
platform_delegate->IsWindowless());
// Get or create the request context and browser context.
CefRefPtr<CefRequestContextImpl> request_context_impl =
CefRequestContextImpl::GetForRequestContext(
create_params.request_context);
DCHECK(request_context_impl);
scoped_refptr<CefBrowserContext> browser_context =
request_context_impl->GetBrowserContext();
DCHECK(browser_context);
if (!create_params.request_context) {
// Using the global request context.
create_params.request_context = request_context_impl.get();
}
content::WebContents::CreateParams wc_create_params(
browser_context.get());
if (platform_delegate->IsWindowless()) {
// Create the OSR view for the WebContents.
platform_delegate->CreateViewForWebContents(
&wc_create_params.view,
&wc_create_params.delegate_view);
}
content::WebContents* web_contents =
content::WebContents::Create(wc_create_params);
DCHECK(web_contents);
CefRefPtr<CefBrowserHostImpl> browser =
CefBrowserHostImpl::CreateInternal(
create_params.settings,
create_params.client,
web_contents,
info,
create_params.devtools_opener,
is_devtools_popup,
create_params.request_context,
std::move(platform_delegate));
if (browser.get() && !create_params.url.empty()) {
browser->LoadURL(CefFrameHostImpl::kMainFrameId, create_params.url,
content::Referrer(), ui::PAGE_TRANSITION_TYPED,
std::string());
}
return browser.get();
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::CreateInternal(
const CefBrowserSettings& settings,
CefRefPtr<CefClient> client,
content::WebContents* web_contents,
scoped_refptr<CefBrowserInfo> browser_info,
CefRefPtr<CefBrowserHostImpl> opener,
bool is_devtools_popup,
CefRefPtr<CefRequestContext> request_context,
scoped_ptr<CefBrowserPlatformDelegate> platform_delegate) {
CEF_REQUIRE_UIT();
DCHECK(web_contents);
DCHECK(browser_info);
DCHECK(request_context);
DCHECK(platform_delegate);
// If |opener| is non-NULL it must be a popup window.
DCHECK(!opener.get() || browser_info->is_popup());
if (opener) {
// Give the opener browser's platform delegate an opportunity to modify the
// new browser's platform delegate.
opener->platform_delegate_->PopupWebContentsCreated(
settings, client, web_contents, platform_delegate.get(),
is_devtools_popup);
}
platform_delegate->WebContentsCreated(web_contents);
CefRefPtr<CefBrowserHostImpl> browser =
new CefBrowserHostImpl(settings, client, web_contents, browser_info,
opener, request_context,
std::move(platform_delegate));
if (!browser->CreateHostWindow())
return nullptr;
// Notify that the browser has been created. These must be delivered in the
// expected order.
// 1. Notify the browser's LifeSpanHandler. This must always be the first
// notification for the browser.
if (client.get()) {
CefRefPtr<CefLifeSpanHandler> handler = client->GetLifeSpanHandler();
if (handler.get())
handler->OnAfterCreated(browser.get());
}
// 2. Notify the platform delegate. With Views this will result in a call to
// CefBrowserViewDelegate::OnBrowserCreated().
browser->platform_delegate_->NotifyBrowserCreated();
if (opener) {
// 3. Notify the opener browser's platform delegate. With Views this will
// result in a call to CefBrowserViewDelegate::OnPopupBrowserViewCreated().
opener->platform_delegate_->PopupBrowserCreated(browser.get(),
is_devtools_popup);
}
return browser;
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForHost(
const content::RenderViewHost* host) {
DCHECK(host);
CEF_REQUIRE_UIT();
content::WebContents* web_contents =
content::WebContents::FromRenderViewHost(
const_cast<content::RenderViewHost*>(host));
if (web_contents)
return GetBrowserForContents(web_contents);
return nullptr;
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForHost(
const content::RenderFrameHost* host) {
DCHECK(host);
CEF_REQUIRE_UIT();
content::WebContents* web_contents =
content::WebContents::FromRenderFrameHost(
const_cast<content::RenderFrameHost*>(host));
if (web_contents)
return GetBrowserForContents(web_contents);
return nullptr;
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForContents(
const content::WebContents* contents) {
DCHECK(contents);
CEF_REQUIRE_UIT();
return WebContentsUserDataAdapter::Get(contents);
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForRequest(
const net::URLRequest* request) {
DCHECK(request);
CEF_REQUIRE_IOT();
int render_process_id = -1;
int render_frame_id = MSG_ROUTING_NONE;
if (!content::ResourceRequestInfo::GetRenderFrameForRequest(
request, &render_process_id, &render_frame_id) ||
render_process_id == -1 ||
render_frame_id == MSG_ROUTING_NONE) {
return nullptr;
}
return GetBrowserForFrame(render_process_id, render_frame_id);
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForView(
int render_process_id, int render_routing_id) {
if (render_process_id == -1 || render_routing_id == MSG_ROUTING_NONE)
return nullptr;
if (CEF_CURRENTLY_ON_UIT()) {
// Use the non-thread-safe but potentially faster approach.
content::RenderViewHost* render_view_host =
content::RenderViewHost::FromID(render_process_id, render_routing_id);
if (!render_view_host)
return nullptr;
return GetBrowserForHost(render_view_host);
} else {
// Use the thread-safe approach.
bool is_guest_view = false;
scoped_refptr<CefBrowserInfo> info =
CefBrowserInfoManager::GetInstance()->GetBrowserInfoForView(
render_process_id, render_routing_id, &is_guest_view);
if (info.get() && !is_guest_view) {
CefRefPtr<CefBrowserHostImpl> browser = info->browser();
if (!browser.get()) {
LOG(WARNING) << "Found browser id " << info->browser_id() <<
" but no browser object matching view process id " <<
render_process_id << " and routing id " <<
render_routing_id;
}
return browser;
}
return nullptr;
}
}
// static
CefRefPtr<CefBrowserHostImpl> CefBrowserHostImpl::GetBrowserForFrame(
int render_process_id, int render_routing_id) {
if (render_process_id == -1 || render_routing_id == MSG_ROUTING_NONE)
return nullptr;
if (CEF_CURRENTLY_ON_UIT()) {
// Use the non-thread-safe but potentially faster approach.
content::RenderFrameHost* render_frame_host =
content::RenderFrameHost::FromID(render_process_id, render_routing_id);
if (!render_frame_host)
return nullptr;
return GetBrowserForHost(render_frame_host);
} else {
// Use the thread-safe approach.
bool is_guest_view = false;
scoped_refptr<CefBrowserInfo> info =
CefBrowserInfoManager::GetInstance()->GetBrowserInfoForFrame(
render_process_id, render_routing_id, &is_guest_view);
if (info.get() && !is_guest_view) {
CefRefPtr<CefBrowserHostImpl> browser = info->browser();
if (!browser.get()) {
LOG(WARNING) << "Found browser id " << info->browser_id() <<
" but no browser object matching frame process id " <<
render_process_id << " and routing id " <<
render_routing_id;
}
return browser;
}
return nullptr;
}
}
// CefBrowserHostImpl methods.
// -----------------------------------------------------------------------------
// WebContentsObserver that will be notified when the frontend WebContents is
// destroyed so that the inspected browser can clear its DevTools references.
class CefBrowserHostImpl::DevToolsWebContentsObserver :
public content::WebContentsObserver {
public:
DevToolsWebContentsObserver(CefBrowserHostImpl* browser,
content::WebContents* frontend_web_contents)
: WebContentsObserver(frontend_web_contents),
browser_(browser) {
}
// WebContentsObserver methods:
void WebContentsDestroyed() override {
browser_->OnDevToolsWebContentsDestroyed();
}
private:
CefBrowserHostImpl* browser_;
DISALLOW_COPY_AND_ASSIGN(DevToolsWebContentsObserver);
};
CefBrowserHostImpl::~CefBrowserHostImpl() {
}
CefRefPtr<CefBrowser> CefBrowserHostImpl::GetBrowser() {
return this;
}
void CefBrowserHostImpl::CloseBrowser(bool force_close) {
if (CEF_CURRENTLY_ON_UIT()) {
// Exit early if a close attempt is already pending and this method is
// called again from somewhere other than WindowDestroyed().
if (destruction_state_ >= DESTRUCTION_STATE_PENDING &&
(IsWindowless() || !window_destroyed_)) {
if (force_close && destruction_state_ == DESTRUCTION_STATE_PENDING) {
// Upgrade the destruction state.
destruction_state_ = DESTRUCTION_STATE_ACCEPTED;
}
return;
}
if (destruction_state_ < DESTRUCTION_STATE_ACCEPTED) {
destruction_state_ = (force_close ? DESTRUCTION_STATE_ACCEPTED :
DESTRUCTION_STATE_PENDING);
}
content::WebContents* contents = web_contents();
if (contents && contents->NeedToFireBeforeUnload()) {
// Will result in a call to BeforeUnloadFired() and, if the close isn't
// canceled, CloseContents().
contents->DispatchBeforeUnload(false);
} else {
CloseContents(contents);
}
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::CloseBrowser, this, force_close));
}
}
bool CefBrowserHostImpl::TryCloseBrowser() {
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "called on invalid thread";
return false;
}
// Protect against multiple requests to close while the close is pending.
if (destruction_state_ <= DESTRUCTION_STATE_PENDING) {
if (destruction_state_ == DESTRUCTION_STATE_NONE) {
// Request that the browser close.
CloseBrowser(false);
}
// Cancel the close.
return false;
}
// Allow the close.
return true;
}
void CefBrowserHostImpl::SetFocus(bool focus) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SetFocus, this, focus));
return;
}
if (focus)
OnSetFocus(FOCUS_SOURCE_SYSTEM);
else
platform_delegate_->SendFocusEvent(false);
}
void CefBrowserHostImpl::SetWindowVisibility(bool visible) {
#if defined(OS_MACOSX)
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SetWindowVisibility,
this, visible));
return;
}
if (!web_contents())
return;
platform_delegate_->SetWindowVisibility(false);
#endif
}
CefWindowHandle CefBrowserHostImpl::GetWindowHandle() {
if (IsViewsHosted() && CEF_CURRENTLY_ON_UIT()) {
// Always return the most up-to-date window handle for a views-hosted
// browser since it may change if the view is re-parented.
if (platform_delegate_)
return platform_delegate_->GetHostWindowHandle();
}
return host_window_handle_;
}
CefWindowHandle CefBrowserHostImpl::GetOpenerWindowHandle() {
return opener_;
}
bool CefBrowserHostImpl::HasView() {
return IsViewsHosted();
}
CefRefPtr<CefClient> CefBrowserHostImpl::GetClient() {
return client_;
}
CefRefPtr<CefRequestContext> CefBrowserHostImpl::GetRequestContext() {
return request_context_;
}
double CefBrowserHostImpl::GetZoomLevel() {
// Verify that this method is being called on the UI thread.
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "called on invalid thread";
return 0;
}
if (web_contents())
return content::HostZoomMap::GetZoomLevel(web_contents());
return 0;
}
void CefBrowserHostImpl::SetZoomLevel(double zoomLevel) {
if (CEF_CURRENTLY_ON_UIT()) {
if (web_contents())
content::HostZoomMap::SetZoomLevel(web_contents(), zoomLevel);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SetZoomLevel, this, zoomLevel));
}
}
void CefBrowserHostImpl::RunFileDialog(
FileDialogMode mode,
const CefString& title,
const CefString& default_file_path,
const std::vector<CefString>& accept_filters,
int selected_accept_filter,
CefRefPtr<CefRunFileDialogCallback> callback) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::RunFileDialog, this, mode, title,
default_file_path, accept_filters, selected_accept_filter,
callback));
return;
}
EnsureFileDialogManager();
file_dialog_manager_->RunFileDialog(mode, title, default_file_path,
accept_filters, selected_accept_filter,
callback);
}
void CefBrowserHostImpl::StartDownload(const CefString& url) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::StartDownload, this, url));
return;
}
GURL gurl = GURL(url.ToString());
if (gurl.is_empty() || !gurl.is_valid())
return;
if (!web_contents())
return;
scoped_refptr<CefBrowserContext> context =
static_cast<CefBrowserContext*>(web_contents()->GetBrowserContext());
if (!context.get())
return;
content::DownloadManager* manager =
content::BrowserContext::GetDownloadManager(context.get());
if (!manager)
return;
scoped_ptr<content::DownloadUrlParameters> params(
content::DownloadUrlParameters::FromWebContents(web_contents(), gurl));
manager->DownloadUrl(std::move(params));
}
void CefBrowserHostImpl::DownloadImage(
const CefString& image_url,
bool is_favicon,
uint32 max_image_size,
bool bypass_cache,
CefRefPtr<CefDownloadImageCallback> callback) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DownloadImage, this, image_url,
is_favicon, max_image_size, bypass_cache, callback));
return;
}
if (!callback)
return;
GURL gurl = GURL(image_url.ToString());
if (gurl.is_empty() || !gurl.is_valid())
return;
if (!web_contents())
return;
web_contents()->DownloadImage(
gurl, is_favicon, max_image_size * gfx::ImageSkia::GetMaxSupportedScale(),
bypass_cache, base::Bind(OnDownloadImage, max_image_size, callback));
}
void CefBrowserHostImpl::Print() {
if (CEF_CURRENTLY_ON_UIT()) {
content::WebContents* actionable_contents = GetActionableWebContents();
if (!actionable_contents)
return;
printing::PrintViewManager::FromWebContents(
actionable_contents)->PrintNow();
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::Print, this));
}
}
void CefBrowserHostImpl::PrintToPDF(const CefString& path,
const CefPdfPrintSettings& settings,
CefRefPtr<CefPdfPrintCallback> callback) {
if (CEF_CURRENTLY_ON_UIT()) {
content::WebContents* actionable_contents = GetActionableWebContents();
if (!actionable_contents)
return;
printing::PrintViewManager::PdfPrintCallback pdf_callback;
if (callback.get()) {
pdf_callback = base::Bind(&CefPdfPrintCallback::OnPdfPrintFinished,
callback.get(), path);
}
printing::PrintViewManager::FromWebContents(actionable_contents)->
PrintToPDF(base::FilePath(path), settings, pdf_callback);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::PrintToPDF, this, path, settings,
callback));
}
}
void CefBrowserHostImpl::Find(int identifier, const CefString& searchText,
bool forward, bool matchCase, bool findNext) {
if (CEF_CURRENTLY_ON_UIT()) {
if (!web_contents_)
return;
blink::WebFindOptions options;
options.forward = forward;
options.matchCase = matchCase;
options.findNext = findNext;
web_contents()->Find(identifier, searchText, options);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::Find, this, identifier, searchText,
forward, matchCase, findNext));
}
}
void CefBrowserHostImpl::StopFinding(bool clearSelection) {
if (CEF_CURRENTLY_ON_UIT()) {
if (!web_contents_)
return;
content::StopFindAction action = clearSelection ?
content::STOP_FIND_ACTION_CLEAR_SELECTION :
content::STOP_FIND_ACTION_KEEP_SELECTION;
web_contents()->StopFinding(action);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::StopFinding, this, clearSelection));
}
}
void CefBrowserHostImpl::ShowDevTools(
const CefWindowInfo& windowInfo,
CefRefPtr<CefClient> client,
const CefBrowserSettings& settings,
const CefPoint& inspect_element_at) {
if (CEF_CURRENTLY_ON_UIT()) {
if (!web_contents_)
return;
if (devtools_frontend_) {
devtools_frontend_->Focus();
return;
}
devtools_frontend_ = CefDevToolsFrontend::Show(
this, windowInfo, client, settings, inspect_element_at);
devtools_observer_.reset(new DevToolsWebContentsObserver(
this, devtools_frontend_->frontend_browser()->web_contents()));
} else {
ShowDevToolsHelper* helper =
new ShowDevToolsHelper(this, windowInfo, client, settings,
inspect_element_at);
CEF_POST_TASK(CEF_UIT, base::Bind(ShowDevToolsWithHelper, helper));
}
}
void CefBrowserHostImpl::CloseDevTools() {
if (CEF_CURRENTLY_ON_UIT()) {
if (!devtools_frontend_)
return;
devtools_frontend_->Close();
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::CloseDevTools, this));
}
}
void CefBrowserHostImpl::GetNavigationEntries(
CefRefPtr<CefNavigationEntryVisitor> visitor,
bool current_only) {
DCHECK(visitor.get());
if (!visitor.get())
return;
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::GetNavigationEntries, this, visitor,
current_only));
return;
}
if (!web_contents())
return;
const content::NavigationController& controller =
web_contents()->GetController();
const int total = controller.GetEntryCount();
const int current = controller.GetCurrentEntryIndex();
if (current_only) {
// Visit only the current entry.
CefRefPtr<CefNavigationEntryImpl> entry =
new CefNavigationEntryImpl(controller.GetEntryAtIndex(current));
visitor->Visit(entry.get(), true, current, total);
entry->Detach(NULL);
} else {
// Visit all entries.
bool cont = true;
for (int i = 0; i < total && cont; ++i) {
CefRefPtr<CefNavigationEntryImpl> entry =
new CefNavigationEntryImpl(controller.GetEntryAtIndex(i));
cont = visitor->Visit(entry.get(), (i == current), i, total);
entry->Detach(NULL);
}
}
}
void CefBrowserHostImpl::SetMouseCursorChangeDisabled(bool disabled) {
base::AutoLock lock_scope(state_lock_);
mouse_cursor_change_disabled_ = disabled;
}
bool CefBrowserHostImpl::IsMouseCursorChangeDisabled() {
base::AutoLock lock_scope(state_lock_);
return mouse_cursor_change_disabled_;
}
bool CefBrowserHostImpl::IsWindowRenderingDisabled() {
return IsWindowless();
}
void CefBrowserHostImpl::ReplaceMisspelling(const CefString& word) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::ReplaceMisspelling, this, word));
return;
}
if(web_contents())
web_contents()->ReplaceMisspelling(word);
}
void CefBrowserHostImpl::AddWordToDictionary(const CefString& word) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::AddWordToDictionary, this, word));
return;
}
if (!web_contents())
return;
content::BrowserContext* browser_context =
web_contents()->GetBrowserContext();
if (browser_context) {
SpellcheckService* spellcheck =
SpellcheckServiceFactory::GetForContext(browser_context);
if (spellcheck)
spellcheck->GetCustomDictionary()->AddWord(word);
}
#if defined(OS_MACOSX)
spellcheck_platform::AddWord(word);
#endif
}
void CefBrowserHostImpl::WasResized() {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT, base::Bind(&CefBrowserHostImpl::WasResized, this));
return;
}
if (!web_contents())
return;
platform_delegate_->WasResized();
}
void CefBrowserHostImpl::WasHidden(bool hidden) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHost::WasHidden, this, hidden));
return;
}
if (!web_contents())
return;
platform_delegate_->WasHidden(hidden);
}
void CefBrowserHostImpl::NotifyScreenInfoChanged() {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::NotifyScreenInfoChanged, this));
return;
}
if (!web_contents())
return;
platform_delegate_->NotifyScreenInfoChanged();
}
void CefBrowserHostImpl::Invalidate(PaintElementType type) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::Invalidate, this, type));
return;
}
if (!web_contents())
return;
platform_delegate_->Invalidate(type);
}
void CefBrowserHostImpl::SendKeyEvent(const CefKeyEvent& event) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendKeyEvent, this, event));
return;
}
if (!web_contents())
return;
content::NativeWebKeyboardEvent web_event;
platform_delegate_->TranslateKeyEvent(web_event, event);
platform_delegate_->SendKeyEvent(web_event);
}
void CefBrowserHostImpl::SendMouseClickEvent(const CefMouseEvent& event,
MouseButtonType type, bool mouseUp, int clickCount) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendMouseClickEvent, this, event, type,
mouseUp, clickCount));
return;
}
if (!web_contents())
return;
blink::WebMouseEvent web_event;
platform_delegate_->TranslateClickEvent(web_event, event, type, mouseUp,
clickCount);
platform_delegate_->SendMouseEvent(web_event);
}
void CefBrowserHostImpl::SendMouseMoveEvent(const CefMouseEvent& event,
bool mouseLeave) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendMouseMoveEvent, this, event,
mouseLeave));
return;
}
if (!web_contents())
return;
blink::WebMouseEvent web_event;
platform_delegate_->TranslateMoveEvent(web_event, event, mouseLeave);
platform_delegate_->SendMouseEvent(web_event);
}
void CefBrowserHostImpl::SendMouseWheelEvent(const CefMouseEvent& event,
int deltaX, int deltaY) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendMouseWheelEvent, this, event,
deltaX, deltaY));
return;
}
if (!web_contents())
return;
blink::WebMouseWheelEvent web_event;
platform_delegate_->TranslateWheelEvent(web_event, event, deltaX, deltaY);
platform_delegate_->SendMouseWheelEvent(web_event);
}
void CefBrowserHostImpl::SendFocusEvent(bool setFocus) {
SetFocus(setFocus);
}
void CefBrowserHostImpl::SendCaptureLostEvent() {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendCaptureLostEvent, this));
return;
}
if (!web_contents())
return;
platform_delegate_->SendCaptureLostEvent();
}
void CefBrowserHostImpl::NotifyMoveOrResizeStarted() {
#if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::NotifyMoveOrResizeStarted, this));
return;
}
if (!web_contents())
return;
platform_delegate_->NotifyMoveOrResizeStarted();
#endif
}
int CefBrowserHostImpl::GetWindowlessFrameRate() {
// Verify that this method is being called on the UI thread.
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "called on invalid thread";
return 0;
}
return osr_util::ClampFrameRate(settings_.windowless_frame_rate);
}
void CefBrowserHostImpl::SetWindowlessFrameRate(int frame_rate) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SetWindowlessFrameRate, this,
frame_rate));
return;
}
settings_.windowless_frame_rate = frame_rate;
platform_delegate_->SetWindowlessFrameRate(frame_rate);
}
// CefBrowser methods.
// -----------------------------------------------------------------------------
CefRefPtr<CefBrowserHost> CefBrowserHostImpl::GetHost() {
return this;
}
bool CefBrowserHostImpl::CanGoBack() {
base::AutoLock lock_scope(state_lock_);
return can_go_back_;
}
void CefBrowserHostImpl::GoBack() {
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::GoBack, this));
return;
}
if (web_contents_.get() && web_contents_->GetController().CanGoBack())
web_contents_->GetController().GoBack();
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::GoBack, this));
}
}
bool CefBrowserHostImpl::CanGoForward() {
base::AutoLock lock_scope(state_lock_);
return can_go_forward_;
}
void CefBrowserHostImpl::GoForward() {
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::GoForward, this));
return;
}
if (web_contents_.get() && web_contents_->GetController().CanGoForward())
web_contents_->GetController().GoForward();
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::GoForward, this));
}
}
bool CefBrowserHostImpl::IsLoading() {
base::AutoLock lock_scope(state_lock_);
return is_loading_;
}
void CefBrowserHostImpl::Reload() {
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::Reload, this));
return;
}
if (web_contents_.get())
web_contents_->GetController().Reload(true);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::Reload, this));
}
}
void CefBrowserHostImpl::ReloadIgnoreCache() {
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::ReloadIgnoreCache, this));
return;
}
if (web_contents_.get())
web_contents_->GetController().ReloadIgnoringCache(true);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::ReloadIgnoreCache, this));
}
}
void CefBrowserHostImpl::StopLoad() {
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::StopLoad, this));
return;
}
if (web_contents_.get())
web_contents_->Stop();
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::StopLoad, this));
}
}
int CefBrowserHostImpl::GetIdentifier() {
return browser_id();
}
bool CefBrowserHostImpl::IsSame(CefRefPtr<CefBrowser> that) {
CefBrowserHostImpl* impl = static_cast<CefBrowserHostImpl*>(that.get());
return (impl == this);
}
bool CefBrowserHostImpl::IsPopup() {
return browser_info_->is_popup();
}
bool CefBrowserHostImpl::HasDocument() {
base::AutoLock lock_scope(state_lock_);
return has_document_;
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetMainFrame() {
return GetFrame(CefFrameHostImpl::kMainFrameId);
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetFocusedFrame() {
return GetFrame(CefFrameHostImpl::kFocusedFrameId);
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetFrame(int64 identifier) {
base::AutoLock lock_scope(state_lock_);
if (main_frame_id_ == CefFrameHostImpl::kInvalidFrameId) {
// A main frame does not exist yet. Return the placeholder frame that
// provides limited functionality.
return placeholder_frame_.get();
}
if (identifier == CefFrameHostImpl::kMainFrameId) {
identifier = main_frame_id_;
} else if (identifier == CefFrameHostImpl::kFocusedFrameId) {
// Return the main frame if no focused frame is currently identified.
if (focused_frame_id_ == CefFrameHostImpl::kInvalidFrameId)
identifier = main_frame_id_;
else
identifier = focused_frame_id_;
}
if (identifier == CefFrameHostImpl::kInvalidFrameId)
return nullptr;
FrameMap::const_iterator it = frames_.find(identifier);
if (it != frames_.end())
return it->second.get();
return nullptr;
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetFrame(const CefString& name) {
base::AutoLock lock_scope(state_lock_);
FrameMap::const_iterator it = frames_.begin();
for (; it != frames_.end(); ++it) {
if (it->second->GetName() == name)
return it->second.get();
}
return nullptr;
}
size_t CefBrowserHostImpl::GetFrameCount() {
base::AutoLock lock_scope(state_lock_);
return frames_.size();
}
void CefBrowserHostImpl::GetFrameIdentifiers(std::vector<int64>& identifiers) {
base::AutoLock lock_scope(state_lock_);
if (identifiers.size() > 0)
identifiers.clear();
FrameMap::const_iterator it = frames_.begin();
for (; it != frames_.end(); ++it)
identifiers.push_back(it->first);
}
void CefBrowserHostImpl::GetFrameNames(std::vector<CefString>& names) {
base::AutoLock lock_scope(state_lock_);
if (names.size() > 0)
names.clear();
FrameMap::const_iterator it = frames_.begin();
for (; it != frames_.end(); ++it)
names.push_back(it->second->GetName());
}
bool CefBrowserHostImpl::SendProcessMessage(
CefProcessId target_process,
CefRefPtr<CefProcessMessage> message) {
DCHECK(message.get());
Cef_Request_Params params;
CefProcessMessageImpl* impl =
static_cast<CefProcessMessageImpl*>(message.get());
if (impl->CopyTo(params)) {
return SendProcessMessage(target_process, params.name, &params.arguments,
true);
}
return false;
}
// CefBrowserHostImpl public methods.
// -----------------------------------------------------------------------------
bool CefBrowserHostImpl::IsWindowless() const {
return is_windowless_;
}
bool CefBrowserHostImpl::IsViewsHosted() const {
return is_views_hosted_;
}
void CefBrowserHostImpl::WindowDestroyed() {
CEF_REQUIRE_UIT();
DCHECK(!window_destroyed_);
window_destroyed_ = true;
CloseBrowser(true);
}
void CefBrowserHostImpl::DestroyBrowser() {
CEF_REQUIRE_UIT();
destruction_state_ = DESTRUCTION_STATE_COMPLETED;
// Notify that this browser has been destroyed. These must be delivered in the
// expected order.
// 1. Notify the platform delegate. With Views this will result in a call to
// CefBrowserViewDelegate::OnBrowserDestroyed().
platform_delegate_->NotifyBrowserDestroyed();
// 2. Notify the browser's LifeSpanHandler. This must always be the last
// notification for this browser.
if (client_.get()) {
CefRefPtr<CefLifeSpanHandler> handler = client_->GetLifeSpanHandler();
if (handler.get()) {
// Notify the handler that the window is about to be closed.
handler->OnBeforeClose(this);
}
}
// Destroy any platform constructs first.
if (file_dialog_manager_.get())
file_dialog_manager_->Destroy();
if (javascript_dialog_manager_.get())
javascript_dialog_manager_->Destroy();
if (menu_manager_.get())
menu_manager_->Destroy();
// Notify any observers that may have state associated with this browser.
FOR_EACH_OBSERVER(Observer, observers_, OnBrowserDestroyed(this));
// Disassociate the platform delegate from this browser.
platform_delegate_->BrowserDestroyed(this);
while (!queued_messages_.empty()) {
delete queued_messages_.front();
queued_messages_.pop();
}
registrar_.reset(NULL);
response_manager_.reset(NULL);
content::WebContentsObserver::Observe(NULL);
web_contents_.reset(NULL);
// Delete objects created by the platform delegate that may be referenced by
// the WebContents.
file_dialog_manager_.reset(NULL);
javascript_dialog_manager_.reset(NULL);
menu_manager_.reset(NULL);
// Delete the platform delegate.
platform_delegate_.reset(NULL);
DetachAllFrames();
CefBrowserInfoManager::GetInstance()->RemoveBrowserInfo(browser_info_);
browser_info_->set_browser(NULL);
}
#if defined(USE_AURA)
views::Widget* CefBrowserHostImpl::GetWindowWidget() const {
CEF_REQUIRE_UIT();
return platform_delegate_->GetWindowWidget();
}
CefRefPtr<CefBrowserView> CefBrowserHostImpl::GetBrowserView() const {
CEF_REQUIRE_UIT();
if (IsViewsHosted())
return platform_delegate_->GetBrowserView();
return nullptr;
}
#endif // defined(USE_AURA)
void CefBrowserHostImpl::CancelContextMenu() {
CEF_REQUIRE_UIT();
if (menu_manager_)
menu_manager_->CancelContextMenu();
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetFrameForRequest(
net::URLRequest* request) {
CEF_REQUIRE_IOT();
const content::ResourceRequestInfo* info =
content::ResourceRequestInfo::ForRequest(request);
if (!info)
return nullptr;
return GetOrCreateFrame(info->GetRenderFrameID(),
CefFrameHostImpl::kUnspecifiedFrameId,
info->IsMainFrame(),
base::string16(),
GURL());
}
void CefBrowserHostImpl::Navigate(const CefNavigateParams& params) {
// Only known frame ids and kMainFrameId are supported.
DCHECK(params.frame_id >= CefFrameHostImpl::kMainFrameId);
CefMsg_LoadRequest_Params request;
request.url = params.url;
if (!request.url.is_valid()) {
LOG(ERROR) << "Invalid URL passed to CefBrowserHostImpl::Navigate: " <<
params.url;
return;
}
request.method = params.method;
request.referrer = params.referrer.url;
request.referrer_policy = params.referrer.policy;
request.frame_id = params.frame_id;
request.first_party_for_cookies = params.first_party_for_cookies;
request.headers = params.headers;
request.load_flags = params.load_flags;
request.upload_data = params.upload_data;
Send(new CefMsg_LoadRequest(routing_id(), request));
OnSetFocus(FOCUS_SOURCE_NAVIGATION);
}
void CefBrowserHostImpl::LoadRequest(int64 frame_id,
CefRefPtr<CefRequest> request) {
CefNavigateParams params(GURL(), ui::PAGE_TRANSITION_TYPED);
params.frame_id = frame_id;
static_cast<CefRequestImpl*>(request.get())->Get(params);
Navigate(params);
}
void CefBrowserHostImpl::LoadURL(
int64 frame_id,
const std::string& url,
const content::Referrer& referrer,
ui::PageTransition transition,
const std::string& extra_headers) {
if (frame_id == CefFrameHostImpl::kMainFrameId) {
// Go through the navigation controller.
if (CEF_CURRENTLY_ON_UIT()) {
if (frame_destruction_pending_) {
// Try again after frame destruction has completed.
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::LoadURL, this, frame_id, url,
referrer, transition, extra_headers));
return;
}
if (web_contents_.get()) {
GURL gurl = GURL(url);
if (!gurl.is_valid() && !gurl.has_scheme()) {
// Try to add "http://" at the beginning
std::string new_url = std::string("http://") + url;
gurl = GURL(new_url);
}
if (!gurl.is_valid()) {
LOG(ERROR) <<
"Invalid URL passed to CefBrowserHostImpl::LoadURL: " << url;
return;
}
web_contents_->GetController().LoadURL(
gurl,
referrer,
transition,
extra_headers);
OnSetFocus(FOCUS_SOURCE_NAVIGATION);
}
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::LoadURL, this, frame_id, url,
referrer, transition, extra_headers));
}
} else {
CefNavigateParams params(GURL(url), transition);
params.frame_id = frame_id;
params.referrer = referrer;
params.headers = extra_headers;
Navigate(params);
}
}
void CefBrowserHostImpl::LoadString(int64 frame_id, const std::string& string,
const std::string& url) {
// Only known frame ids or kMainFrameId are supported.
DCHECK(frame_id >= CefFrameHostImpl::kMainFrameId);
Cef_Request_Params params;
params.name = "load-string";
params.frame_id = frame_id;
params.user_initiated = false;
params.request_id = -1;
params.expect_response = false;
params.arguments.AppendString(string);
params.arguments.AppendString(url);
Send(new CefMsg_Request(routing_id(), params));
}
void CefBrowserHostImpl::SendCommand(
int64 frame_id,
const std::string& command,
CefRefPtr<CefResponseManager::Handler> responseHandler) {
// Only known frame ids are supported.
DCHECK(frame_id > CefFrameHostImpl::kMainFrameId);
DCHECK(!command.empty());
// Execute on the UI thread because CefResponseManager is not thread safe.
if (CEF_CURRENTLY_ON_UIT()) {
TRACE_EVENT2("libcef", "CefBrowserHostImpl::SendCommand",
"frame_id", frame_id,
"needsResponse", responseHandler.get() ? 1 : 0);
Cef_Request_Params params;
params.name = "execute-command";
params.frame_id = frame_id;
params.user_initiated = false;
if (responseHandler.get()) {
params.request_id = response_manager_->RegisterHandler(responseHandler);
params.expect_response = true;
} else {
params.request_id = -1;
params.expect_response = false;
}
params.arguments.AppendString(command);
Send(new CefMsg_Request(routing_id(), params));
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendCommand, this, frame_id, command,
responseHandler));
}
}
void CefBrowserHostImpl::SendCode(
int64 frame_id,
bool is_javascript,
const std::string& code,
const std::string& script_url,
int script_start_line,
CefRefPtr<CefResponseManager::Handler> responseHandler) {
// Only known frame ids are supported.
DCHECK(frame_id >= CefFrameHostImpl::kMainFrameId);
DCHECK(!code.empty());
DCHECK_GE(script_start_line, 0);
// Execute on the UI thread because CefResponseManager is not thread safe.
if (CEF_CURRENTLY_ON_UIT()) {
TRACE_EVENT2("libcef", "CefBrowserHostImpl::SendCommand",
"frame_id", frame_id,
"needsResponse", responseHandler.get() ? 1 : 0);
Cef_Request_Params params;
params.name = "execute-code";
params.frame_id = frame_id;
params.user_initiated = false;
if (responseHandler.get()) {
params.request_id = response_manager_->RegisterHandler(responseHandler);
params.expect_response = true;
} else {
params.request_id = -1;
params.expect_response = false;
}
params.arguments.AppendBoolean(is_javascript);
params.arguments.AppendString(code);
params.arguments.AppendString(script_url);
params.arguments.AppendInteger(script_start_line);
Send(new CefMsg_Request(routing_id(), params));
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::SendCode, this, frame_id, is_javascript,
code, script_url, script_start_line, responseHandler));
}
}
bool CefBrowserHostImpl::SendProcessMessage(CefProcessId target_process,
const std::string& name,
base::ListValue* arguments,
bool user_initiated) {
DCHECK_EQ(PID_RENDERER, target_process);
DCHECK(!name.empty());
Cef_Request_Params params;
params.name = name;
if (arguments)
params.arguments.Swap(arguments);
params.frame_id = -1;
params.user_initiated = user_initiated;
params.request_id = -1;
params.expect_response = false;
return Send(new CefMsg_Request(routing_id(), params));
}
void CefBrowserHostImpl::ViewText(const std::string& text) {
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::ViewText,
this, text));
return;
}
platform_delegate_->ViewText(text);
}
void CefBrowserHostImpl::HandleExternalProtocol(const GURL& url) {
if (CEF_CURRENTLY_ON_UIT()) {
bool allow_os_execution = false;
if (client_.get()) {
CefRefPtr<CefRequestHandler> handler = client_->GetRequestHandler();
if (handler.get())
handler->OnProtocolExecution(this, url.spec(), allow_os_execution);
}
if (allow_os_execution)
platform_delegate_->HandleExternalProtocol(url);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::HandleExternalProtocol, this, url));
}
}
int CefBrowserHostImpl::browser_id() const {
return browser_info_->browser_id();
}
void CefBrowserHostImpl::OnSetFocus(cef_focus_source_t source) {
if (CEF_CURRENTLY_ON_UIT()) {
// SetFocus() might be called while inside the OnSetFocus() callback. If so,
// don't re-enter the callback.
if (!is_in_onsetfocus_) {
if (client_.get()) {
CefRefPtr<CefFocusHandler> handler = client_->GetFocusHandler();
if (handler.get()) {
is_in_onsetfocus_ = true;
bool handled = handler->OnSetFocus(this, source);
is_in_onsetfocus_ = false;
if (handled)
return;
}
}
}
platform_delegate_->SendFocusEvent(true);
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::OnSetFocus, this, source));
}
}
void CefBrowserHostImpl::RunFileChooser(
const CefFileDialogRunner::FileChooserParams& params,
const CefFileDialogRunner::RunFileChooserCallback& callback) {
EnsureFileDialogManager();
file_dialog_manager_->RunFileChooser(params, callback);
}
bool CefBrowserHostImpl::EmbedsFullscreenWidget() const {
// When using windowless rendering do not allow Flash to create its own full-
// screen widget.
return IsWindowless();
}
void CefBrowserHostImpl::EnterFullscreenModeForTab(
content::WebContents* web_contents,
const GURL& origin) {
OnFullscreenModeChange(true);
}
void CefBrowserHostImpl::ExitFullscreenModeForTab(
content::WebContents* web_contents) {
OnFullscreenModeChange(false);
}
bool CefBrowserHostImpl::IsFullscreenForTabOrPending(
const content::WebContents* web_contents) const {
return is_fullscreen_;
}
blink::WebDisplayMode CefBrowserHostImpl::GetDisplayMode(
const content::WebContents* web_contents) const {
return is_fullscreen_ ? blink::WebDisplayModeFullscreen :
blink::WebDisplayModeBrowser;
}
void CefBrowserHostImpl::FindReply(
content::WebContents* web_contents,
int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update) {
if (client_.get()) {
CefRefPtr<CefFindHandler> handler = client_->GetFindHandler();
if (handler.get()) {
CefRect rect(selection_rect.x(), selection_rect.y(),
selection_rect.width(), selection_rect.height());
handler->OnFindResult(this, request_id, number_of_matches,
rect, active_match_ordinal, final_update);
}
}
}
CefTextInputContext CefBrowserHostImpl::GetNSTextInputContext() {
#if defined(OS_MACOSX)
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return nullptr;
}
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "Called on invalid thread";
return nullptr;
}
if (!web_contents())
return nullptr;
return platform_delegate_->GetNSTextInputContext();
#else
return nullptr;
#endif
}
void CefBrowserHostImpl::HandleKeyEventBeforeTextInputClient(
CefEventHandle keyEvent) {
#if defined(OS_MACOSX)
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "Called on invalid thread";
return;
}
if (!web_contents())
return;
platform_delegate_->HandleKeyEventBeforeTextInputClient(keyEvent);
#endif
}
void CefBrowserHostImpl::HandleKeyEventAfterTextInputClient(
CefEventHandle keyEvent) {
#if defined(OS_MACOSX)
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
NOTREACHED() << "Called on invalid thread";
return;
}
if (!web_contents())
return;
return platform_delegate_->HandleKeyEventAfterTextInputClient(keyEvent);
#endif
}
void CefBrowserHostImpl::DragTargetDragEnter(CefRefPtr<CefDragData> drag_data,
const CefMouseEvent& event,
CefBrowserHost::DragOperationsMask allowed_ops) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragTargetDragEnter, this, drag_data,
event, allowed_ops));
return;
}
if (!drag_data.get()) {
NOTREACHED();
return;
}
if (!web_contents())
return;
platform_delegate_->DragTargetDragEnter(drag_data, event, allowed_ops);
}
void CefBrowserHostImpl::DragTargetDragOver(const CefMouseEvent& event,
CefBrowserHost::DragOperationsMask allowed_ops) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragTargetDragOver, this, event,
allowed_ops));
return;
}
if (!web_contents())
return;
platform_delegate_->DragTargetDragOver(event, allowed_ops);
}
void CefBrowserHostImpl::DragTargetDragLeave() {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragTargetDragLeave, this));
return;
}
if (!web_contents())
return;
platform_delegate_->DragTargetDragLeave();
}
void CefBrowserHostImpl::DragTargetDrop(const CefMouseEvent& event) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragTargetDrop, this, event));
return;
}
if (!web_contents())
return;
platform_delegate_->DragTargetDrop(event);
}
void CefBrowserHostImpl::DragSourceSystemDragEnded() {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragSourceSystemDragEnded, this));
return;
}
platform_delegate_->DragSourceSystemDragEnded();
}
void CefBrowserHostImpl::DragSourceEndedAt(
int x, int y, CefBrowserHost::DragOperationsMask op) {
if (!IsWindowless()) {
NOTREACHED() << "Window rendering is not disabled";
return;
}
if (!CEF_CURRENTLY_ON_UIT()) {
CEF_POST_TASK(CEF_UIT,
base::Bind(&CefBrowserHostImpl::DragSourceEndedAt, this, x, y, op));
return;
}
if (!web_contents())
return;
platform_delegate_->DragSourceEndedAt(x, y, op);
}
// content::WebContentsDelegate methods.
// -----------------------------------------------------------------------------
// |source| may be NULL if the navigation originates from a guest view via
// CefContentBrowserClient::CanCreateWindow.
content::WebContents* CefBrowserHostImpl::OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) {
bool cancel = false;
if (client_.get()) {
CefRefPtr<CefRequestHandler> handler = client_->GetRequestHandler();
if (handler.get()) {
cancel = handler->OnOpenURLFromTab(
this,
GetFrame(params.frame_tree_node_id),
params.url.spec(),
static_cast<cef_window_open_disposition_t>(params.disposition),
params.user_gesture);
}
}
if (!cancel) {
// Start a navigation in the current browser that will result in the
// creation of a new render process.
LoadURL(CefFrameHostImpl::kMainFrameId, params.url.spec(), params.referrer,
params.transition, params.extra_headers);
return source;
}
// We don't know where the navigation, if any, will occur.
return nullptr;
}
void CefBrowserHostImpl::LoadingStateChanged(content::WebContents* source,
bool to_different_document) {
int current_index =
web_contents_->GetController().GetLastCommittedEntryIndex();
int max_index = web_contents_->GetController().GetEntryCount() - 1;
bool is_loading, can_go_back, can_go_forward;
{
base::AutoLock lock_scope(state_lock_);
is_loading = is_loading_ = web_contents_->IsLoading();
can_go_back = can_go_back_ = (current_index > 0);
can_go_forward = can_go_forward_ = (current_index < max_index);
}
if (client_.get()) {
CefRefPtr<CefLoadHandler> handler = client_->GetLoadHandler();
if (handler.get()) {
handler->OnLoadingStateChange(this, is_loading, can_go_back,
can_go_forward);
}
}
}
void CefBrowserHostImpl::CloseContents(content::WebContents* source) {
CEF_REQUIRE_UIT();
if (destruction_state_ == DESTRUCTION_STATE_COMPLETED)
return;
bool close_browser = true;
// If this method is called in response to something other than
// WindowDestroyed() ask the user if the browser should close.
if (client_.get() && (IsWindowless() || !window_destroyed_)) {
CefRefPtr<CefLifeSpanHandler> handler =
client_->GetLifeSpanHandler();
if (handler.get()) {
close_browser = !handler->DoClose(this);
}
}
if (close_browser) {
if (destruction_state_ != DESTRUCTION_STATE_ACCEPTED)
destruction_state_ = DESTRUCTION_STATE_ACCEPTED;
if (!IsWindowless() && !window_destroyed_) {
// A window exists so try to close it using the platform method. Will
// result in a call to WindowDestroyed() if/when the window is destroyed
// via the platform window destruction mechanism.
platform_delegate_->CloseHostWindow();
} else {
// Keep a reference to the browser while it's in the process of being
// destroyed.
CefRefPtr<CefBrowserHostImpl> browser(this);
// No window exists. Destroy the browser immediately. Don't call other
// browser methods after calling DestroyBrowser().
DestroyBrowser();
}
} else if (destruction_state_ != DESTRUCTION_STATE_NONE) {
destruction_state_ = DESTRUCTION_STATE_NONE;
}
}
void CefBrowserHostImpl::UpdateTargetURL(content::WebContents* source,
const GURL& url) {
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get())
handler->OnStatusMessage(this, url.spec());
}
}
bool CefBrowserHostImpl::AddMessageToConsole(content::WebContents* source,
int32_t level,
const base::string16& message,
int32_t line_no,
const base::string16& source_id) {
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get())
return handler->OnConsoleMessage(this, message, source_id, line_no);
}
return false;
}
void CefBrowserHostImpl::BeforeUnloadFired(content::WebContents* source,
bool proceed,
bool* proceed_to_fire_unload) {
if (destruction_state_ == DESTRUCTION_STATE_ACCEPTED || proceed) {
*proceed_to_fire_unload = true;
} else if (!proceed) {
*proceed_to_fire_unload = false;
destruction_state_ = DESTRUCTION_STATE_NONE;
}
}
bool CefBrowserHostImpl::TakeFocus(content::WebContents* source,
bool reverse) {
if (client_.get()) {
CefRefPtr<CefFocusHandler> handler = client_->GetFocusHandler();
if (handler.get())
handler->OnTakeFocus(this, !reverse);
}
return false;
}
bool CefBrowserHostImpl::HandleContextMenu(
const content::ContextMenuParams& params) {
return HandleContextMenu(web_contents(), params);
}
content::WebContents* CefBrowserHostImpl::GetActionableWebContents() {
if (web_contents() && extensions::ExtensionsEnabled()) {
content::WebContents* guest_contents =
extensions::GetFullPageGuestForOwnerContents(web_contents());
if (guest_contents)
return guest_contents;
}
return web_contents();
}
bool CefBrowserHostImpl::PreHandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) {
if (client_.get()) {
CefRefPtr<CefKeyboardHandler> handler = client_->GetKeyboardHandler();
if (handler.get()) {
CefKeyEvent cef_event;
if (!browser_util::GetCefKeyEvent(event, cef_event))
return false;
cef_event.focus_on_editable_field = focus_on_editable_field_;
CefEventHandle event_handle = platform_delegate_->GetEventHandle(event);
return handler->OnPreKeyEvent(this, cef_event, event_handle,
is_keyboard_shortcut);
}
}
return false;
}
void CefBrowserHostImpl::HandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) {
// Check to see if event should be ignored.
if (event.skip_in_browser)
return;
if (client_.get()) {
CefRefPtr<CefKeyboardHandler> handler = client_->GetKeyboardHandler();
if (handler.get()) {
CefKeyEvent cef_event;
if (browser_util::GetCefKeyEvent(event, cef_event)) {
cef_event.focus_on_editable_field = focus_on_editable_field_;
CefEventHandle event_handle = platform_delegate_->GetEventHandle(event);
if (handler->OnKeyEvent(this, cef_event, event_handle))
return;
}
}
}
platform_delegate_->HandleKeyboardEvent(event);
}
bool CefBrowserHostImpl::CanDragEnter(
content::WebContents* source,
const content::DropData& data,
blink::WebDragOperationsMask mask) {
CefRefPtr<CefDragHandler> handler = client_->GetDragHandler();
if (handler.get()) {
CefRefPtr<CefDragDataImpl> drag_data(new CefDragDataImpl(data));
drag_data->SetReadOnly(true);
if (handler->OnDragEnter(
this,
drag_data.get(),
static_cast<CefDragHandler::DragOperationsMask>(mask))) {
return false;
}
}
return true;
}
bool CefBrowserHostImpl::ShouldCreateWebContents(
content::WebContents* web_contents,
int route_id,
int main_frame_route_id,
int32_t main_frame_widget_route_id,
WindowContainerType window_container_type,
const std::string& frame_name,
const GURL& target_url,
const std::string& partition_id,
content::SessionStorageNamespace* session_storage_namespace,
content::WebContentsView** view,
content::RenderViewHostDelegateView** delegate_view) {
// In cases where the navigation will occur in a new render process the
// |route_id| value will be MSG_ROUTING_NONE here (because the existing
// renderer will not be able to communicate with the new renderer) and
// OpenURLFromTab will be called after WebContentsCreated.
CefBrowserInfoManager::GetInstance()->ShouldCreateWebContents(
web_contents, target_url, view, delegate_view);
return true;
}
void CefBrowserHostImpl::WebContentsCreated(
content::WebContents* source_contents,
int opener_render_frame_id,
const std::string& frame_name,
const GURL& target_url,
content::WebContents* new_contents) {
CefBrowserSettings settings;
CefRefPtr<CefClient> client;
scoped_ptr<CefBrowserPlatformDelegate> platform_delegate;
CefBrowserInfoManager::GetInstance()->WebContentsCreated(
source_contents, target_url, new_contents, settings, client,
platform_delegate);
scoped_refptr<CefBrowserInfo> info =
CefBrowserInfoManager::GetInstance()->CreatePopupBrowserInfo(
new_contents, platform_delegate->IsWindowless());
DCHECK(info.get());
DCHECK(info->is_popup());
CefRefPtr<CefBrowserHostImpl> opener = GetBrowserForContents(source_contents);
DCHECK(opener.get());
scoped_refptr<CefBrowserContext> browser_context =
static_cast<CefBrowserContext*>(new_contents->GetBrowserContext());
DCHECK(browser_context.get());
CefRefPtr<CefRequestContext> request_context =
CefRequestContextImpl::GetForBrowserContext(browser_context).get();
DCHECK(request_context.get());
CefRefPtr<CefBrowserHostImpl> browser = CefBrowserHostImpl::CreateInternal(
settings, client, new_contents, info, opener, false, request_context,
std::move(platform_delegate));
}
void CefBrowserHostImpl::DidNavigateMainFramePostCommit(
content::WebContents* web_contents) {
base::AutoLock lock_scope(state_lock_);
has_document_ = false;
}
content::JavaScriptDialogManager*
CefBrowserHostImpl::GetJavaScriptDialogManager(
content::WebContents* source) {
if (!javascript_dialog_manager_.get()) {
javascript_dialog_manager_.reset(
new CefJavaScriptDialogManager(this,
platform_delegate_->CreateJavaScriptDialogRunner()));
}
return javascript_dialog_manager_.get();
}
void CefBrowserHostImpl::RunFileChooser(
content::WebContents* web_contents,
const content::FileChooserParams& params) {
EnsureFileDialogManager();
file_dialog_manager_->RunFileChooser(web_contents, params);
}
bool CefBrowserHostImpl::HandleContextMenu(
content::WebContents* web_contents,
const content::ContextMenuParams& params) {
CEF_REQUIRE_UIT();
if (!menu_manager_.get()) {
menu_manager_.reset(
new CefMenuManager(this,
platform_delegate_->CreateMenuRunner()));
}
return menu_manager_->CreateContextMenu(params);
}
void CefBrowserHostImpl::UpdatePreferredSize(content::WebContents* source,
const gfx::Size& pref_size) {
#if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
CEF_REQUIRE_UIT();
platform_delegate_->SizeTo(pref_size.width(), pref_size.height());
#endif
}
void CefBrowserHostImpl::RequestMediaAccessPermission(
content::WebContents* web_contents,
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback) {
CEF_REQUIRE_UIT();
content::MediaStreamDevices devices;
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kEnableMediaStream)) {
// Cancel the request.
callback.Run(devices, content::MEDIA_DEVICE_PERMISSION_DENIED,
scoped_ptr<content::MediaStreamUI>());
return;
}
// Based on chrome/browser/media/media_stream_devices_controller.cc
bool microphone_requested =
(request.audio_type == content::MEDIA_DEVICE_AUDIO_CAPTURE);
bool webcam_requested =
(request.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE);
if (microphone_requested || webcam_requested) {
switch (request.request_type) {
case content::MEDIA_OPEN_DEVICE_PEPPER_ONLY:
case content::MEDIA_DEVICE_ACCESS:
case content::MEDIA_GENERATE_STREAM:
case content::MEDIA_ENUMERATE_DEVICES:
// Pick the desired device or fall back to the first available of the
// given type.
CefMediaCaptureDevicesDispatcher::GetInstance()->GetRequestedDevice(
request.requested_audio_device_id,
microphone_requested,
false,
&devices);
CefMediaCaptureDevicesDispatcher::GetInstance()->GetRequestedDevice(
request.requested_video_device_id,
false,
webcam_requested,
&devices);
break;
}
}
callback.Run(devices, content::MEDIA_DEVICE_OK,
scoped_ptr<content::MediaStreamUI>());
}
bool CefBrowserHostImpl::CheckMediaAccessPermission(
content::WebContents* web_contents,
const GURL& security_origin,
content::MediaStreamType type) {
// Check media access permission without prompting the user. This is called
// when loading the Pepper Flash plugin.
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
return command_line->HasSwitch(switches::kEnableMediaStream);
}
// content::WebContentsObserver methods.
// -----------------------------------------------------------------------------
void CefBrowserHostImpl::RenderFrameCreated(
content::RenderFrameHost* render_frame_host) {
const int render_process_id = render_frame_host->GetProcess()->GetID();
const int render_routing_id = render_frame_host->GetRoutingID();
browser_info_->render_id_manager()->add_render_frame_id(
render_process_id, render_routing_id);
}
void CefBrowserHostImpl::RenderFrameDeleted(
content::RenderFrameHost* render_frame_host) {
const int render_process_id = render_frame_host->GetProcess()->GetID();
const int render_routing_id = render_frame_host->GetRoutingID();
browser_info_->render_id_manager()->remove_render_frame_id(
render_process_id, render_routing_id);
}
void CefBrowserHostImpl::RenderViewCreated(
content::RenderViewHost* render_view_host) {
// The swapped out state of a RVH is determined by its main frame since
// subframes should have their own widgets. We should never recieve creation
// notifications for a RVH where the main frame is swapped out.
content::RenderFrameHostImpl* frame_host_impl =
static_cast<content::RenderFrameHostImpl*>(
render_view_host->GetMainFrame());
DCHECK(frame_host_impl && !frame_host_impl->is_swapped_out());
const int render_process_id = render_view_host->GetProcess()->GetID();
const int render_routing_id = render_view_host->GetRoutingID();
browser_info_->render_id_manager()->add_render_view_id(
render_process_id, render_routing_id);
// May be already registered if the renderer crashed previously.
if (!registrar_->IsRegistered(
this, content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
content::Source<content::RenderViewHost>(render_view_host))) {
registrar_->Add(this, content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
content::Source<content::RenderViewHost>(render_view_host));
}
platform_delegate_->RenderViewCreated(render_view_host);
}
void CefBrowserHostImpl::RenderViewDeleted(
content::RenderViewHost* render_view_host) {
// The swapped out state of a RVH is determined by its main frame since
// subframes should have their own widgets. Ignore deletion notification for
// a RVH where the main frame host is swapped out. We probably shouldn't be
// getting these notifications to begin with.
content::RenderFrameHostImpl* frame_host_impl =
static_cast<content::RenderFrameHostImpl*>(
render_view_host->GetMainFrame());
if (!frame_host_impl || frame_host_impl->is_swapped_out())
return;
const int render_process_id = render_view_host->GetProcess()->GetID();
const int render_routing_id = render_view_host->GetRoutingID();
browser_info_->render_id_manager()->remove_render_view_id(
render_process_id, render_routing_id);
if (registrar_->IsRegistered(
this, content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
content::Source<content::RenderViewHost>(render_view_host))) {
registrar_->Remove(this, content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
content::Source<content::RenderViewHost>(render_view_host));
}
}
void CefBrowserHostImpl::RenderViewReady() {
// Send the queued messages.
queue_messages_ = false;
while (!queued_messages_.empty()) {
Send(queued_messages_.front());
queued_messages_.pop();
}
if (client_.get()) {
CefRefPtr<CefRequestHandler> handler = client_->GetRequestHandler();
if (handler.get())
handler->OnRenderViewReady(this);
}
}
void CefBrowserHostImpl::RenderProcessGone(base::TerminationStatus status) {
queue_messages_ = true;
cef_termination_status_t ts = TS_ABNORMAL_TERMINATION;
if (status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED)
ts = TS_PROCESS_WAS_KILLED;
else if (status == base::TERMINATION_STATUS_PROCESS_CRASHED)
ts = TS_PROCESS_CRASHED;
else if (status != base::TERMINATION_STATUS_ABNORMAL_TERMINATION)
return;
if (client_.get()) {
CefRefPtr<CefRequestHandler> handler = client_->GetRequestHandler();
if (handler.get()) {
frame_destruction_pending_ = true;
handler->OnRenderProcessTerminated(this, ts);
frame_destruction_pending_ = false;
}
}
}
void CefBrowserHostImpl::DidCommitProvisionalLoadForFrame(
content::RenderFrameHost* render_frame_host,
const GURL& url,
ui::PageTransition transition_type) {
const bool is_main_frame = !render_frame_host->GetParent();
CefRefPtr<CefFrame> frame = GetOrCreateFrame(
render_frame_host->GetRoutingID(),
CefFrameHostImpl::kUnspecifiedFrameId,
is_main_frame,
base::string16(),
url);
OnLoadStart(frame, url, transition_type);
if (is_main_frame)
OnAddressChange(frame, url);
}
void CefBrowserHostImpl::DidFailProvisionalLoad(
content::RenderFrameHost* render_frame_host,
const GURL& validated_url,
int error_code,
const base::string16& error_description,
bool was_ignored_by_handler) {
const bool is_main_frame = !render_frame_host->GetParent();
CefRefPtr<CefFrame> frame = GetOrCreateFrame(
render_frame_host->GetRoutingID(),
CefFrameHostImpl::kUnspecifiedFrameId,
is_main_frame,
base::string16(),
GURL());
OnLoadError(frame, validated_url, error_code, error_description);
}
void CefBrowserHostImpl::DocumentAvailableInMainFrame() {
base::AutoLock lock_scope(state_lock_);
has_document_ = true;
}
void CefBrowserHostImpl::DidFailLoad(
content::RenderFrameHost* render_frame_host,
const GURL& validated_url,
int error_code,
const base::string16& error_description,
bool was_ignored_by_handler) {
const bool is_main_frame = !render_frame_host->GetParent();
CefRefPtr<CefFrame> frame = GetOrCreateFrame(
render_frame_host->GetRoutingID(),
CefFrameHostImpl::kUnspecifiedFrameId,
is_main_frame,
base::string16(),
validated_url);
OnLoadError(frame, validated_url, error_code, error_description);
OnLoadEnd(frame, validated_url, error_code);
}
void CefBrowserHostImpl::FrameDeleted(
content::RenderFrameHost* render_frame_host) {
base::AutoLock lock_scope(state_lock_);
const int64 frame_id = render_frame_host->GetRoutingID();
FrameMap::iterator it = frames_.find(frame_id);
if (it != frames_.end()) {
it->second->Detach();
frames_.erase(it);
}
if (main_frame_id_ == frame_id)
main_frame_id_ = CefFrameHostImpl::kInvalidFrameId;
if (focused_frame_id_ == frame_id)
focused_frame_id_ = CefFrameHostImpl::kInvalidFrameId;
}
void CefBrowserHostImpl::DidNavigateAnyFrame(
content::RenderFrameHost* render_frame_host,
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
if (!web_contents())
return;
scoped_refptr<CefBrowserContext> context =
static_cast<CefBrowserContext*>(web_contents()->GetBrowserContext());
if (!context.get())
return;
context->AddVisitedURLs(params.redirects);
}
void CefBrowserHostImpl::TitleWasSet(content::NavigationEntry* entry,
bool explicit_set) {
// |entry| may be NULL if a popup is created via window.open and never
// navigated.
if (entry)
OnTitleChange(entry->GetTitle());
else if (web_contents())
OnTitleChange(web_contents()->GetTitle());
}
void CefBrowserHostImpl::PluginCrashed(const base::FilePath& plugin_path,
base::ProcessId plugin_pid) {
if (client_.get()) {
CefRefPtr<CefRequestHandler> handler = client_->GetRequestHandler();
if (handler.get())
handler->OnPluginCrashed(this, plugin_path.value());
}
}
void CefBrowserHostImpl::DidUpdateFaviconURL(
const std::vector<content::FaviconURL>& candidates) {
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get()) {
std::vector<CefString> icon_urls;
std::vector<content::FaviconURL>::const_iterator it =
candidates.begin();
for (; it != candidates.end(); ++it) {
if (it->icon_type == content::FaviconURL::FAVICON)
icon_urls.push_back(it->icon_url.spec());
}
if (!icon_urls.empty())
handler->OnFaviconURLChange(this, icon_urls);
}
}
}
bool CefBrowserHostImpl::OnMessageReceived(const IPC::Message& message) {
// Handle the cursor message here if mouse cursor change is disabled instead
// of propegating the message to the normal handler.
if (message.type() == ViewHostMsg_SetCursor::ID)
return IsMouseCursorChangeDisabled();
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(CefBrowserHostImpl, message)
IPC_MESSAGE_HANDLER(CefHostMsg_FrameIdentified, OnFrameIdentified)
IPC_MESSAGE_HANDLER(CefHostMsg_DidFinishLoad, OnDidFinishLoad)
IPC_MESSAGE_HANDLER(CefHostMsg_UpdateDraggableRegions,
OnUpdateDraggableRegions)
IPC_MESSAGE_HANDLER(CefHostMsg_Request, OnRequest)
IPC_MESSAGE_HANDLER(CefHostMsg_Response, OnResponse)
IPC_MESSAGE_HANDLER(CefHostMsg_ResponseAck, OnResponseAck)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void CefBrowserHostImpl::OnWebContentsFocused() {
if (client_.get()) {
CefRefPtr<CefFocusHandler> handler = client_->GetFocusHandler();
if (handler.get())
handler->OnGotFocus(this);
}
}
bool CefBrowserHostImpl::Send(IPC::Message* message) {
if (CEF_CURRENTLY_ON_UIT()) {
if (queue_messages_) {
queued_messages_.push(message);
return true;
} else {
return content::WebContentsObserver::Send(message);
}
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(base::IgnoreResult(&CefBrowserHostImpl::Send), this,
message));
return true;
}
}
void CefBrowserHostImpl::AddObserver(Observer* observer) {
CEF_REQUIRE_UIT();
observers_.AddObserver(observer);
}
void CefBrowserHostImpl::RemoveObserver(Observer* observer) {
CEF_REQUIRE_UIT();
observers_.RemoveObserver(observer);
}
bool CefBrowserHostImpl::HasObserver(Observer* observer) const {
CEF_REQUIRE_UIT();
return observers_.HasObserver(observer);
}
// content::WebContentsObserver::OnMessageReceived() message handlers.
// -----------------------------------------------------------------------------
void CefBrowserHostImpl::OnFrameIdentified(int64 frame_id,
int64 parent_frame_id,
base::string16 name) {
bool is_main_frame = (parent_frame_id == CefFrameHostImpl::kMainFrameId);
GetOrCreateFrame(frame_id, parent_frame_id, is_main_frame, name, GURL());
}
void CefBrowserHostImpl::OnDidFinishLoad(int64 frame_id,
const GURL& validated_url,
bool is_main_frame,
int http_status_code) {
CefRefPtr<CefFrame> frame = GetOrCreateFrame(frame_id,
CefFrameHostImpl::kUnspecifiedFrameId, is_main_frame, base::string16(),
validated_url);
// Give internal scheme handlers an opportunity to update content.
scheme::DidFinishLoad(frame, validated_url);
OnLoadEnd(frame, validated_url, http_status_code);
}
void CefBrowserHostImpl::OnUpdateDraggableRegions(
const std::vector<Cef_DraggableRegion_Params>& regions) {
std::vector<CefDraggableRegion> draggable_regions;
draggable_regions.reserve(regions.size());
std::vector<Cef_DraggableRegion_Params>::const_iterator it = regions.begin();
for (; it != regions.end(); ++it) {
const gfx::Rect& rect(it->bounds);
const CefRect bounds(rect.x(), rect.y(), rect.width(), rect.height());
draggable_regions.push_back(CefDraggableRegion(bounds, it->draggable));
}
if (client_.get()) {
CefRefPtr<CefDragHandler> handler = client_->GetDragHandler();
if (handler.get()) {
handler->OnDraggableRegionsChanged(this, draggable_regions);
}
}
}
void CefBrowserHostImpl::OnRequest(const Cef_Request_Params& params) {
bool success = false;
std::string response;
bool expect_response_ack = false;
if (params.user_initiated) {
// Give the user a chance to handle the request.
if (client_.get()) {
CefRefPtr<CefProcessMessageImpl> message(
new CefProcessMessageImpl(const_cast<Cef_Request_Params*>(&params),
false, true));
success = client_->OnProcessMessageReceived(this, PID_RENDERER,
message.get());
message->Detach(NULL);
}
} else {
// Invalid request.
NOTREACHED();
}
if (params.expect_response) {
DCHECK_GE(params.request_id, 0);
// Send a response to the renderer.
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 CefMsg_Response(routing_id(), response_params));
}
}
void CefBrowserHostImpl::OnResponse(const Cef_Response_Params& params) {
response_manager_->RunHandler(params);
if (params.expect_response_ack)
Send(new CefMsg_ResponseAck(routing_id(), params.request_id));
}
void CefBrowserHostImpl::OnResponseAck(int request_id) {
response_manager_->RunAckHandler(request_id);
}
// content::NotificationObserver methods.
// -----------------------------------------------------------------------------
void CefBrowserHostImpl::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(type == content::NOTIFICATION_LOAD_STOP ||
type == content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE);
if (type == content::NOTIFICATION_LOAD_STOP) {
content::NavigationController* controller =
content::Source<content::NavigationController>(source).ptr();
OnTitleChange(controller->GetWebContents()->GetTitle());
} else if (type == content::NOTIFICATION_FOCUS_CHANGED_IN_PAGE) {
focus_on_editable_field_ = *content::Details<bool>(details).ptr();
}
}
// CefBrowserHostImpl private methods.
// -----------------------------------------------------------------------------
CefBrowserHostImpl::CefBrowserHostImpl(
const CefBrowserSettings& settings,
CefRefPtr<CefClient> client,
content::WebContents* web_contents,
scoped_refptr<CefBrowserInfo> browser_info,
CefRefPtr<CefBrowserHostImpl> opener,
CefRefPtr<CefRequestContext> request_context,
scoped_ptr<CefBrowserPlatformDelegate> platform_delegate)
: content::WebContentsObserver(web_contents),
settings_(settings),
client_(client),
browser_info_(browser_info),
opener_(kNullWindowHandle),
request_context_(request_context),
platform_delegate_(std::move(platform_delegate)),
is_windowless_(platform_delegate_->IsWindowless()),
is_views_hosted_(platform_delegate_->IsViewsHosted()),
host_window_handle_(kNullWindowHandle),
is_loading_(false),
can_go_back_(false),
can_go_forward_(false),
has_document_(false),
is_fullscreen_(false),
queue_messages_(true),
main_frame_id_(CefFrameHostImpl::kInvalidFrameId),
focused_frame_id_(CefFrameHostImpl::kInvalidFrameId),
destruction_state_(DESTRUCTION_STATE_NONE),
frame_destruction_pending_(false),
window_destroyed_(false),
is_in_onsetfocus_(false),
focus_on_editable_field_(false),
mouse_cursor_change_disabled_(false),
devtools_frontend_(NULL) {
if (opener.get() && !platform_delegate_->IsViewsHosted()) {
// GetOpenerWindowHandle() only returns a value for non-views-hosted
// popup browsers.
opener_ = opener->GetWindowHandle();
}
DCHECK(!browser_info_->browser().get());
browser_info_->set_browser(this);
web_contents_.reset(web_contents);
web_contents->SetDelegate(this);
// Associate the WebContents with this browser object.
WebContentsUserDataAdapter::Register(this);
registrar_.reset(new content::NotificationRegistrar);
// When navigating through the history, the restored NavigationEntry's title
// will be used. If the entry ends up having the same title after we return
// to it, as will usually be the case, the
// NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED will then be suppressed, since the
// NavigationEntry's title hasn't changed.
registrar_->Add(this, content::NOTIFICATION_LOAD_STOP,
content::Source<content::NavigationController>(
&web_contents->GetController()));
response_manager_.reset(new CefResponseManager);
placeholder_frame_ =
new CefFrameHostImpl(this, CefFrameHostImpl::kInvalidFrameId, true,
CefString(), CefString(),
CefFrameHostImpl::kInvalidFrameId);
PrefsTabHelper::CreateForWebContents(web_contents_.get());
printing::PrintViewManager::CreateForWebContents(web_contents_.get());
// Make sure RenderViewCreated is called at least one time.
RenderViewCreated(web_contents->GetRenderViewHost());
// Associate the platform delegate with this browser.
platform_delegate_->BrowserCreated(this);
}
bool CefBrowserHostImpl::CreateHostWindow() {
// |host_window_handle_| will not change after initial host creation for
// non-views-hosted browsers.
bool success = true;
if (!IsWindowless())
success = platform_delegate_->CreateHostWindow();
if (success && !IsViewsHosted())
host_window_handle_ = platform_delegate_->GetHostWindowHandle();
return success;
}
CefRefPtr<CefFrame> CefBrowserHostImpl::GetOrCreateFrame(
int64 frame_id, int64 parent_frame_id, bool is_main_frame,
base::string16 frame_name, const GURL& frame_url) {
DCHECK(frame_id > CefFrameHostImpl::kInvalidFrameId);
if (frame_id <= CefFrameHostImpl::kInvalidFrameId)
return nullptr;
CefString url;
if (frame_url.is_valid())
url = frame_url.spec();
CefString name;
if (!frame_name.empty())
name = frame_name;
CefRefPtr<CefFrameHostImpl> frame;
bool frame_created = false;
{
base::AutoLock lock_scope(state_lock_);
if (is_main_frame && main_frame_id_ != frame_id) {
if (main_frame_id_ != CefFrameHostImpl::kInvalidFrameId) {
// Remove the old main frame object before adding the new one.
FrameMap::iterator it = frames_.find(main_frame_id_);
if (it != frames_.end()) {
// Persist URL and name to the new main frame.
if (url.empty())
url = it->second->GetURL();
if (name.empty())
name = it->second->GetName();
it->second->Detach();
frames_.erase(it);
}
if (focused_frame_id_ == main_frame_id_)
focused_frame_id_ = frame_id;
}
main_frame_id_ = frame_id;
}
// Check if a frame object already exists.
FrameMap::const_iterator it = frames_.find(frame_id);
if (it != frames_.end())
frame = it->second.get();
if (!frame.get()) {
frame = new CefFrameHostImpl(this, frame_id, is_main_frame, url, name,
parent_frame_id);
frame_created = true;
frames_.insert(std::make_pair(frame_id, frame));
}
}
if (!frame_created)
frame->SetAttributes(url, name, parent_frame_id);
return frame.get();
}
void CefBrowserHostImpl::DetachAllFrames() {
FrameMap frames;
{
base::AutoLock lock_scope(state_lock_);
frames = frames_;
frames_.clear();
if (main_frame_id_ != CefFrameHostImpl::kInvalidFrameId)
main_frame_id_ = CefFrameHostImpl::kInvalidFrameId;
if (focused_frame_id_ != CefFrameHostImpl::kInvalidFrameId)
focused_frame_id_ = CefFrameHostImpl::kInvalidFrameId;
}
FrameMap::const_iterator it = frames.begin();
for (; it != frames.end(); ++it)
it->second->Detach();
}
void CefBrowserHostImpl::SetFocusedFrame(int64 frame_id) {
CefRefPtr<CefFrameHostImpl> unfocused_frame;
CefRefPtr<CefFrameHostImpl> focused_frame;
{
base::AutoLock lock_scope(state_lock_);
if (focused_frame_id_ != CefFrameHostImpl::kInvalidFrameId) {
// Unfocus the previously focused frame.
FrameMap::const_iterator it = frames_.find(frame_id);
if (it != frames_.end())
unfocused_frame = it->second;
}
if (frame_id != CefFrameHostImpl::kInvalidFrameId) {
// Focus the newly focused frame.
FrameMap::iterator it = frames_.find(frame_id);
if (it != frames_.end())
focused_frame = it->second;
}
focused_frame_id_ =
focused_frame.get() ? frame_id : CefFrameHostImpl::kInvalidFrameId;
}
if (unfocused_frame.get())
unfocused_frame->SetFocused(false);
if (focused_frame.get())
focused_frame->SetFocused(true);
}
gfx::Point CefBrowserHostImpl::GetScreenPoint(const gfx::Point& view) const {
CEF_REQUIRE_UIT();
if (platform_delegate_.get())
return platform_delegate_->GetScreenPoint(view);
return gfx::Point();
}
void CefBrowserHostImpl::OnAddressChange(CefRefPtr<CefFrame> frame,
const GURL& url) {
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get()) {
// Notify the handler of an address change.
handler->OnAddressChange(this, GetMainFrame(), url.spec());
}
}
}
void CefBrowserHostImpl::OnLoadStart(CefRefPtr<CefFrame> frame,
const GURL& url,
ui::PageTransition transition_type) {
if (client_.get()) {
CefRefPtr<CefLoadHandler> handler = client_->GetLoadHandler();
if (handler.get()) {
// Notify the handler that loading has started.
handler->OnLoadStart(this, frame);
}
}
}
void CefBrowserHostImpl::OnLoadError(CefRefPtr<CefFrame> frame,
const GURL& url,
int error_code,
const base::string16& error_description) {
if (client_.get()) {
CefRefPtr<CefLoadHandler> handler = client_->GetLoadHandler();
if (handler.get()) {
frame_destruction_pending_ = true;
// Notify the handler that loading has failed.
handler->OnLoadError(this, frame,
static_cast<cef_errorcode_t>(error_code),
CefString(error_description),
url.spec());
frame_destruction_pending_ = false;
}
}
}
void CefBrowserHostImpl::OnLoadEnd(CefRefPtr<CefFrame> frame,
const GURL& url,
int http_status_code) {
if (client_.get()) {
CefRefPtr<CefLoadHandler> handler = client_->GetLoadHandler();
if (handler.get())
handler->OnLoadEnd(this, frame, http_status_code);
}
}
void CefBrowserHostImpl::OnFullscreenModeChange(bool fullscreen) {
if (is_fullscreen_ == fullscreen)
return;
is_fullscreen_ = fullscreen;
WasResized();
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get())
handler->OnFullscreenModeChange(this, fullscreen);
}
}
void CefBrowserHostImpl::OnTitleChange(const base::string16& title) {
if (client_.get()) {
CefRefPtr<CefDisplayHandler> handler = client_->GetDisplayHandler();
if (handler.get())
handler->OnTitleChange(this, title);
}
}
void CefBrowserHostImpl::OnDevToolsWebContentsDestroyed() {
devtools_observer_.reset();
devtools_frontend_ = NULL;
}
void CefBrowserHostImpl::EnsureFileDialogManager() {
CEF_REQUIRE_UIT();
if (!file_dialog_manager_.get()) {
file_dialog_manager_.reset(
new CefFileDialogManager(this,
platform_delegate_->CreateFileDialogRunner()));
}
}
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