136 lines
6.2 KiB
C++
136 lines
6.2 KiB
C++
// Copyright 2020 The Chromium Embedded Framework Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_
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#define CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_
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#pragma once
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#include <memory>
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#include "libcef/browser/browser_host_base.h"
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#include "libcef/browser/browser_info.h"
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#include "libcef/browser/chrome/browser_delegate.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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class CefBrowserContentsDelegate;
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class CefRequestContextImpl;
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class ChromeBrowserHostImpl;
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// Implementation of the cef::BrowserDelegate interface. Lifespan is controlled
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// by the Browser object. Only accessed on the UI thread.
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//
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// The Browser object represents the top-level Chrome browser window. One or
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// more tabs (WebContents) are then owned by the Browser object via
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// TabStripModel. A new Browser object can be created programmatically using
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// "new Browser" or Browser::Create, or as a result of user action such as
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// dragging a tab out of an existing window. New or existing tabs can also be
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// added to an already existing Browser object.
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//
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// The Browser object acts as the WebContentsDelegate for all attached tabs. CEF
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// integration requires WebContentsDelegate callbacks and notification of tab
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// attach/detach. To support this integration a cef::BrowserDelegate
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// (ChromeBrowserDelegate) member is created in the Browser constructor and
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// receives delegation for the Browser callbacks. ChromeBrowserDelegate creates
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// a new ChromeBrowserHostImpl when a tab is added to a Browser for the first
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// time, and that ChromeBrowserHostImpl continues to exist until the tab's
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// WebContents is destroyed. The associated WebContents object does not change,
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// but the Browser object will change when the tab is dragged between windows.
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class ChromeBrowserDelegate : public cef::BrowserDelegate {
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public:
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ChromeBrowserDelegate(Browser* browser,
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const CefBrowserCreateParams& create_params,
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const Browser* opener);
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ChromeBrowserDelegate(const ChromeBrowserDelegate&) = delete;
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ChromeBrowserDelegate& operator=(const ChromeBrowserDelegate&) = delete;
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~ChromeBrowserDelegate() override;
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// cef::BrowserDelegate methods:
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std::unique_ptr<content::WebContents> AddWebContents(
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std::unique_ptr<content::WebContents> new_contents) override;
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void OnWebContentsCreated(content::WebContents* new_contents) override;
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void SetAsDelegate(content::WebContents* web_contents,
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bool set_delegate) override;
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bool ShowStatusBubble(bool show_by_default) override;
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bool HandleCommand(int command_id,
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WindowOpenDisposition disposition) override;
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bool IsAppMenuItemVisible(int command_id) override;
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bool IsAppMenuItemEnabled(int command_id) override;
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bool IsPageActionIconVisible(PageActionIconType icon_type) override;
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bool IsToolbarButtonVisible(ToolbarButtonType button_type) override;
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void UpdateFindBarBoundingBox(gfx::Rect* bounds) override;
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[[nodiscard]] content::MediaResponseCallback RequestMediaAccessPermissionEx(
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content::WebContents* web_contents,
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const content::MediaStreamRequest& request,
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content::MediaResponseCallback callback) override;
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absl::optional<bool> SupportsWindowFeature(int feature) const override;
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bool SupportsDraggableRegion() const override;
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const absl::optional<SkRegion> GetDraggableRegion() const override;
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void UpdateDraggableRegion(const SkRegion& region) override;
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void WindowFullscreenStateChanged() override;
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// WebContentsDelegate methods:
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void WebContentsCreated(content::WebContents* source_contents,
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int opener_render_process_id,
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int opener_render_frame_id,
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const std::string& frame_name,
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const GURL& target_url,
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content::WebContents* new_contents) override;
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content::WebContents* OpenURLFromTab(
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content::WebContents* source,
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const content::OpenURLParams& params) override;
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void LoadingStateChanged(content::WebContents* source,
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bool should_show_loading_ui) override;
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void UpdateTargetURL(content::WebContents* source, const GURL& url) override;
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bool DidAddMessageToConsole(content::WebContents* source,
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blink::mojom::ConsoleMessageLevel log_level,
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const std::u16string& message,
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int32_t line_no,
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const std::u16string& source_id) override;
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void EnterFullscreenModeForTab(
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content::RenderFrameHost* requesting_frame,
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const blink::mojom::FullscreenOptions& options) override;
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void ExitFullscreenModeForTab(content::WebContents* web_contents) override;
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void CanDownload(const GURL& url,
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const std::string& request_method,
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base::OnceCallback<void(bool)> callback) override;
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content::KeyboardEventProcessingResult PreHandleKeyboardEvent(
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content::WebContents* source,
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const content::NativeWebKeyboardEvent& event) override;
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bool HandleKeyboardEvent(
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content::WebContents* source,
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const content::NativeWebKeyboardEvent& event) override;
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Browser* browser() const { return browser_; }
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private:
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void CreateBrowser(
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content::WebContents* web_contents,
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CefBrowserSettings settings,
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CefRefPtr<CefClient> client,
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std::unique_ptr<CefBrowserPlatformDelegate> platform_delegate,
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scoped_refptr<CefBrowserInfo> browser_info,
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CefRefPtr<ChromeBrowserHostImpl> opener,
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CefRefPtr<CefRequestContextImpl> request_context_impl);
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CefBrowserContentsDelegate* GetDelegateForWebContents(
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content::WebContents* web_contents);
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bool SupportsFramelessPictureInPicture() const;
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Browser* const browser_;
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base::WeakPtr<ChromeBrowserHostImpl> opener_host_;
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// Used when creating a new browser host.
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const CefBrowserCreateParams create_params_;
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absl::optional<bool> show_status_bubble_;
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absl::optional<SkRegion> draggable_region_;
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mutable absl::optional<bool> frameless_pip_;
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};
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#endif // CEF_LIBCEF_BROWSER_CHROME_CHROME_BROWSER_DELEGATE_H_
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