cef/libcef/browser/chrome/chrome_browser_delegate.h
Marshall Greenblatt 4fbd247231 Add chrome runtime support for more callbacks and ceftests (see issue #2969)
This change adds support for:
- Protocol and request handling.
- Loading and navigation events.
- Display and focus events.
- Mouse/keyboard events.
- Popup browsers.
- Callbacks in the renderer process.
- Misc. functionality required for ceftests.

This change also adds a new CefBrowserProcessHandler::GetCookieableSchemes
callback for configuring global state that will be applied to all
CefCookieManagers by default. This global callback is currently required by the
chrome runtime because the primary ProfileImpl is created via
ChromeBrowserMainParts::PreMainMessageLoopRun (CreatePrimaryProfile) before
OnContextCreated can be called.

ProfileImpl will use the "C:\Users\[user]\AppData\Local\CEF\User Data\Default"
directory by default (on Windows). Cookies may persist in this directory when
running ceftests and may need to be manually deleted if those tests fail.

Remaining work includes:
- Support for client-created request contexts.
- Embedding the browser in a Views hierarchy (cefclient support).
- TryCloseBrowser and DoClose support.
- Most of the CefSettings configuration.
- DevTools protocol and window control (ShowDevTools, ExecuteDevToolsMethod).
- CEF-specific WebUI pages (about, license, webui-hosts).
- Context menu customization (CefContextMenuHandler).
- Auto resize (SetAutoResizeEnabled).
- Zoom settings (SetZoomLevel).
- File dialog runner (RunFileDialog).
- File and JS dialog handlers (CefDialogHandler, CefJSDialogHandler).
- Extension loading (LoadExtension, etc).
- Plugin loading (OnBeforePluginLoad).
- Widevine loading (CefRegisterWidevineCdm).
- PDF and print preview does not display.
- Crash reporting is untested.
- Mac: Web content loads but does not display.

The following ceftests are now passing when run with the
"--enable-chrome-runtime" command-line flag:

CorsTest.*
DisplayTest.*:-DisplayTest.AutoResize
DOMTest.*
DraggableRegionsTest.*
ImageTest.*
MessageRouterTest.*
NavigationTest.*
ParserTest.*
RequestContextTest.*Global*
RequestTest.*
ResourceManagerTest.*
ResourceRequestHandlerTest.*
ResponseTest.*
SchemeHandlerTest.*
ServerTest.*
StreamResourceHandlerTest.*
StreamTest.*
StringTest.*
TaskTest.*
TestServerTest.*
ThreadTest.*
URLRequestTest.*Global*
V8Test.*:-V8Test.OnUncaughtExceptionDevTools
ValuesTest.*
WaitableEventTest.*
XmlReaderTest.*
ZipReaderTest.*
2020-09-29 18:31:43 -04:00

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C++

// Copyright 2020 The Chromium Embedded Framework Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_
#define CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_
#pragma once
#include <memory>
#include "libcef/browser/browser_host_base.h"
#include "libcef/browser/browser_info.h"
#include "libcef/browser/chrome/browser_delegate.h"
#include "base/optional.h"
class CefBrowserContentsDelegate;
class CefRequestContextImpl;
class ChromeBrowserHostImpl;
// Implementation of the cef::BrowserDelegate interface. Lifespan is controlled
// by the Browser object. Only accessed on the UI thread.
//
// The Browser object represents the top-level Chrome browser window. One or
// more tabs (WebContents) are then owned by the Browser object via
// TabStripModel. A new Browser object can be created programmatically using
// "new Browser" or Browser::Create, or as a result of user action such as
// dragging a tab out of an existing window. New or existing tabs can also be
// added to an already existing Browser object.
//
// The Browser object acts as the WebContentsDelegate for all attached tabs. CEF
// integration requires WebContentsDelegate callbacks and notification of tab
// attach/detach. To support this integration a cef::BrowserDelegate
// (ChromeBrowserDelegate) member is created in the Browser constructor and
// receives delegation for the Browser callbacks. ChromeBrowserDelegate creates
// a new ChromeBrowserHostImpl when a tab is added to a Browser for the first
// time, and that ChromeBrowserHostImpl continues to exist until the tab's
// WebContents is destroyed. The associated WebContents object does not change,
// but the Browser object will change when the tab is dragged between windows.
class ChromeBrowserDelegate : public cef::BrowserDelegate {
public:
ChromeBrowserDelegate(Browser* browser,
const CefBrowserCreateParams& create_params);
~ChromeBrowserDelegate() override;
// cef::BrowserDelegate methods:
void OnWebContentsCreated(content::WebContents* new_contents) override;
void SetAsDelegate(content::WebContents* web_contents,
bool set_delegate) override;
// WebContentsDelegate methods:
void WebContentsCreated(content::WebContents* source_contents,
int opener_render_process_id,
int opener_render_frame_id,
const std::string& frame_name,
const GURL& target_url,
content::WebContents* new_contents) override;
content::WebContents* OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) override;
void LoadingStateChanged(content::WebContents* source,
bool to_different_document) override;
void UpdateTargetURL(content::WebContents* source, const GURL& url) override;
bool DidAddMessageToConsole(content::WebContents* source,
blink::mojom::ConsoleMessageLevel log_level,
const base::string16& message,
int32_t line_no,
const base::string16& source_id) override;
void DidNavigateMainFramePostCommit(
content::WebContents* web_contents) override;
void EnterFullscreenModeForTab(
content::RenderFrameHost* requesting_frame,
const blink::mojom::FullscreenOptions& options) override;
void ExitFullscreenModeForTab(content::WebContents* web_contents) override;
content::KeyboardEventProcessingResult PreHandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) override;
bool HandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) override;
Browser* browser() const { return browser_; }
private:
void CreateBrowser(
content::WebContents* web_contents,
CefBrowserSettings settings,
CefRefPtr<CefClient> client,
std::unique_ptr<CefBrowserPlatformDelegate> platform_delegate,
scoped_refptr<CefBrowserInfo> browser_info,
CefRefPtr<CefRequestContextImpl> request_context_impl);
CefBrowserContentsDelegate* GetDelegateForWebContents(
content::WebContents* web_contents);
Browser* const browser_;
// Used when creating a new browser host.
const CefBrowserCreateParams create_params_;
DISALLOW_COPY_AND_ASSIGN(ChromeBrowserDelegate);
};
#endif // CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_