cef/libcef/browser/extensions/browser_platform_delegate_background.h

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// Copyright 2017 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_VIEWS_BROWSER_PLATFORM_DELEGATE_BACKGROUND_H_
#define CEF_LIBCEF_BROWSER_VIEWS_BROWSER_PLATFORM_DELEGATE_BACKGROUND_H_
#include "libcef/browser/browser_platform_delegate.h"
#include "libcef/browser/native/browser_platform_delegate_native.h"
// Implementation of browser functionality for background script hosts.
class CefBrowserPlatformDelegateBackground
: public CefBrowserPlatformDelegate,
public CefBrowserPlatformDelegateNative::WindowlessHandler {
public:
// Platform-specific behaviors will be delegated to |native_delegate|.
CefBrowserPlatformDelegateBackground(
std::unique_ptr<CefBrowserPlatformDelegateNative> native_delegate);
// CefBrowserPlatformDelegate methods:
bool CreateHostWindow() override;
void CloseHostWindow() override;
CefWindowHandle GetHostWindowHandle() const override;
SkColor GetBackgroundColor() const override;
bool CanUseSharedTexture() const override;
bool CanUseExternalBeginFrame() const override;
void WasResized() override;
Add support for MimeHandlerViewInCrossProcessFrame (fixes issue #2727) The PDF loading documentation in extension_system.cc has be updated to describe the new code paths. To support delivery of input events to the mime handler renderer process it is now necessary to route events via the correct RWHV interface. For Aura-based platforms (Windows/Linux) this means RWHVAura::On*Event and for macOS this means RWHVMac::RouteOrProcess*Event. Since Aura uses UI event types these have become the source of truth on Aura-based platforms with conversion to Web event types when needed (primarily for OSR). This change also adds a timeout for CefProcessHostMsg_GetNewBrowserInfo to avoid a hung renderer process if the guest WebContents route is not registered via CefMimeHandlerViewGuestDelegate::OnGuestDetached as expected prior to CefBrowserInfoManager::OnGetNewBrowserInfo being called. This timeout can be disabled for testing purposes by passing the `--disable-new-browser-info-timeout` command-line flag. The `--disable-features=MimeHandlerViewInCrossProcessFrame` command-line flag can be used for a limited time to restore the previous implementation based on BrowserPlugin. That implementation will be deleted starting with the 3897 branch update. Known issues: - ExecuteJavaScript calls on the frame hosting the PDF extension will not be routed to the mime handler renderer process. - The PDF extension will not load successfully if blocked by ChromePluginPlaceholder and then manually continued via the "Run this plugin" context menu option (see https://crbug.com/533069#c41).
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void SendKeyEvent(const CefKeyEvent& event) override;
void SendMouseClickEvent(const CefMouseEvent& event,
CefBrowserHost::MouseButtonType type,
bool mouseUp,
int clickCount) override;
void SendMouseMoveEvent(const CefMouseEvent& event, bool mouseLeave) override;
void SendMouseWheelEvent(const CefMouseEvent& event,
int deltaX,
int deltaY) override;
void SendTouchEvent(const CefTouchEvent& event) override;
void SendFocusEvent(bool setFocus) override;
gfx::Point GetScreenPoint(const gfx::Point& view) const override;
void ViewText(const std::string& text) override;
bool HandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event) override;
CefEventHandle GetEventHandle(
const content::NativeWebKeyboardEvent& event) const override;
std::unique_ptr<CefFileDialogRunner> CreateFileDialogRunner() override;
std::unique_ptr<CefJavaScriptDialogRunner> CreateJavaScriptDialogRunner()
override;
std::unique_ptr<CefMenuRunner> CreateMenuRunner() override;
bool IsWindowless() const override;
bool IsViewsHosted() const override;
// CefBrowserPlatformDelegateNative::WindowlessHandler methods:
CefWindowHandle GetParentWindowHandle() const override;
gfx::Point GetParentScreenPoint(const gfx::Point& view) const override;
private:
std::unique_ptr<CefBrowserPlatformDelegateNative> native_delegate_;
};
#endif // CEF_LIBCEF_BROWSER_VIEWS_BROWSER_PLATFORM_DELEGATE_BACKGROUND_H_