349 lines
15 KiB
C++
349 lines
15 KiB
C++
// Copyright (c) 2012 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2011 The Chromium 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_ALLOY_ALLOY_BROWSER_HOST_IMPL_H_
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#define CEF_LIBCEF_BROWSER_ALLOY_ALLOY_BROWSER_HOST_IMPL_H_
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#pragma once
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#include <map>
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#include <string>
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#include <vector>
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#include "include/cef_browser.h"
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#include "include/cef_client.h"
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#include "include/cef_frame.h"
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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/frame_host_impl.h"
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#include "libcef/browser/javascript_dialog_manager.h"
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#include "libcef/browser/menu_manager.h"
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#include "libcef/browser/request_context_impl.h"
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#include "base/synchronization/lock.h"
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#include "content/public/browser/web_contents.h"
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#include "content/public/browser/web_contents_delegate.h"
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#include "content/public/browser/web_contents_observer.h"
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#include "extensions/common/mojom/view_type.mojom-forward.h"
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class CefAudioCapturer;
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class CefBrowserInfo;
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class SiteInstance;
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// CefBrowser implementation for the alloy runtime. Method calls are delegated
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// to the CefPlatformDelegate or the WebContents as appropriate. All methods are
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// thread-safe unless otherwise indicated.
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//
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// WebContentsDelegate: Interface for handling WebContents delegations. There is
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// a one-to-one relationship between AlloyBrowserHostImpl and WebContents
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// instances.
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//
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// WebContentsObserver: Interface for observing WebContents notifications and
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// IPC messages. There is a one-to-one relationship between WebContents and
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// RenderViewHost instances. IPC messages received by the RenderViewHost will be
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// forwarded to this WebContentsObserver implementation via WebContents. IPC
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// messages sent using AlloyBrowserHostImpl::Send() will be forwarded to the
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// RenderViewHost (after posting to the UI thread if necessary). Use
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// WebContentsObserver::routing_id() when sending IPC messages.
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class AlloyBrowserHostImpl : public CefBrowserHostBase,
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public content::WebContentsDelegate,
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public content::WebContentsObserver {
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public:
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// Used for handling the response to command messages.
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class CommandResponseHandler : public virtual CefBaseRefCounted {
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public:
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virtual void OnResponse(const std::string& response) = 0;
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};
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~AlloyBrowserHostImpl() override;
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// Create a new AlloyBrowserHostImpl instance with owned WebContents.
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static CefRefPtr<AlloyBrowserHostImpl> Create(
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CefBrowserCreateParams& create_params);
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// Returns the browser associated with the specified RenderViewHost.
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static CefRefPtr<AlloyBrowserHostImpl> GetBrowserForHost(
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const content::RenderViewHost* host);
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// Returns the browser associated with the specified RenderFrameHost.
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static CefRefPtr<AlloyBrowserHostImpl> GetBrowserForHost(
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const content::RenderFrameHost* host);
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// Returns the browser associated with the specified WebContents.
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static CefRefPtr<AlloyBrowserHostImpl> GetBrowserForContents(
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const content::WebContents* contents);
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// Returns the browser associated with the specified global ID.
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static CefRefPtr<AlloyBrowserHostImpl> GetBrowserForGlobalId(
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const content::GlobalRenderFrameHostId& global_id);
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// CefBrowserHost methods.
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void CloseBrowser(bool force_close) override;
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bool TryCloseBrowser() override;
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CefWindowHandle GetWindowHandle() override;
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CefWindowHandle GetOpenerWindowHandle() override;
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void Find(const CefString& searchText,
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bool forward,
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bool matchCase,
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bool findNext) override;
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void StopFinding(bool clearSelection) override;
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void ShowDevTools(const CefWindowInfo& windowInfo,
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CefRefPtr<CefClient> client,
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const CefBrowserSettings& settings,
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const CefPoint& inspect_element_at) override;
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void CloseDevTools() override;
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bool HasDevTools() override;
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bool IsWindowRenderingDisabled() override;
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void WasResized() override;
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void WasHidden(bool hidden) override;
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void NotifyScreenInfoChanged() override;
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void Invalidate(PaintElementType type) override;
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void SendExternalBeginFrame() override;
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void SendTouchEvent(const CefTouchEvent& event) override;
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void SendCaptureLostEvent() override;
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int GetWindowlessFrameRate() override;
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void SetWindowlessFrameRate(int frame_rate) override;
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void ImeSetComposition(const CefString& text,
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const std::vector<CefCompositionUnderline>& underlines,
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const CefRange& replacement_range,
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const CefRange& selection_range) override;
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void ImeCommitText(const CefString& text,
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const CefRange& replacement_range,
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int relative_cursor_pos) override;
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void ImeFinishComposingText(bool keep_selection) override;
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void ImeCancelComposition() override;
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void DragTargetDragEnter(CefRefPtr<CefDragData> drag_data,
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const CefMouseEvent& event,
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DragOperationsMask allowed_ops) override;
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void DragTargetDragOver(const CefMouseEvent& event,
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DragOperationsMask allowed_ops) override;
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void DragTargetDragLeave() override;
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void DragTargetDrop(const CefMouseEvent& event) override;
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void DragSourceSystemDragEnded() override;
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void DragSourceEndedAt(int x, int y, DragOperationsMask op) override;
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void SetAudioMuted(bool mute) override;
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bool IsAudioMuted() override;
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void SetAccessibilityState(cef_state_t accessibility_state) override;
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void SetAutoResizeEnabled(bool enabled,
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const CefSize& min_size,
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const CefSize& max_size) override;
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CefRefPtr<CefExtension> GetExtension() override;
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bool IsBackgroundHost() override;
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// Returns true if windowless rendering is enabled.
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bool IsWindowless() const override;
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bool IsVisible() const override;
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// Returns true if this browser supports picture-in-picture.
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bool IsPictureInPictureSupported() const;
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// Called when the OS window hosting the browser is destroyed.
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void WindowDestroyed() override;
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bool WillBeDestroyed() const override;
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// Destroy the browser members. This method should only be called after the
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// native browser window is not longer processing messages.
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void DestroyBrowser() override;
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// Cancel display of the context menu, if any.
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void CancelContextMenu();
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bool MaybeAllowNavigation(content::RenderFrameHost* opener,
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bool is_guest_view,
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const content::OpenURLParams& params) override;
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// Convert from view DIP coordinates to screen coordinates. If
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// |want_dip_coords| is true return DIP instead of device (pixel) coordinates
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// on Windows/Linux.
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gfx::Point GetScreenPoint(const gfx::Point& view, bool want_dip_coords) const;
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void StartDragging(const content::DropData& drop_data,
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blink::DragOperationsMask allowed_ops,
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const gfx::ImageSkia& image,
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const gfx::Vector2d& image_offset,
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const blink::mojom::DragEventSourceInfo& event_info,
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content::RenderWidgetHostImpl* source_rwh);
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void UpdateDragOperation(ui::mojom::DragOperation operation,
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bool document_is_handling_drag);
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// Accessors that must be called on the UI thread.
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extensions::ExtensionHost* GetExtensionHost() const;
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void OnSetFocus(cef_focus_source_t source) override;
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bool ShowContextMenu(const content::ContextMenuParams& params);
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enum DestructionState {
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DESTRUCTION_STATE_NONE = 0,
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DESTRUCTION_STATE_PENDING,
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DESTRUCTION_STATE_ACCEPTED,
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DESTRUCTION_STATE_COMPLETED
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};
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DestructionState destruction_state() const { return destruction_state_; }
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// content::WebContentsDelegate methods.
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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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bool ShouldAllowRendererInitiatedCrossProcessNavigation(
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bool is_main_frame_navigation) override;
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void AddNewContents(content::WebContents* source,
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std::unique_ptr<content::WebContents> new_contents,
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const GURL& target_url,
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WindowOpenDisposition disposition,
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const blink::mojom::WindowFeatures& window_features,
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bool user_gesture,
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bool* was_blocked) 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 CloseContents(content::WebContents* source) 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 ContentsZoomChange(bool zoom_in) override;
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void BeforeUnloadFired(content::WebContents* source,
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bool proceed,
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bool* proceed_to_fire_unload) override;
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bool TakeFocus(content::WebContents* source, bool reverse) 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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bool PreHandleGestureEvent(content::WebContents* source,
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const blink::WebGestureEvent& event) override;
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bool CanDragEnter(content::WebContents* source,
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const content::DropData& data,
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blink::DragOperationsMask operations_allowed) override;
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void GetCustomWebContentsView(
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content::WebContents* web_contents,
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const GURL& target_url,
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int opener_render_process_id,
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int opener_render_frame_id,
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content::WebContentsView** view,
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content::RenderViewHostDelegateView** delegate_view) override;
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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::JavaScriptDialogManager* GetJavaScriptDialogManager(
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content::WebContents* source) override;
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void RunFileChooser(content::RenderFrameHost* render_frame_host,
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scoped_refptr<content::FileSelectListener> listener,
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const blink::mojom::FileChooserParams& params) 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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bool IsFullscreenForTabOrPending(
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const content::WebContents* web_contents) override;
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blink::mojom::DisplayMode GetDisplayMode(
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const content::WebContents* web_contents) override;
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void FindReply(content::WebContents* web_contents,
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int request_id,
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int number_of_matches,
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const gfx::Rect& selection_rect,
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int active_match_ordinal,
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bool final_update) override;
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void UpdatePreferredSize(content::WebContents* source,
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const gfx::Size& pref_size) override;
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void ResizeDueToAutoResize(content::WebContents* source,
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const gfx::Size& new_size) override;
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void RequestMediaAccessPermission(
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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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bool CheckMediaAccessPermission(content::RenderFrameHost* render_frame_host,
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const GURL& security_origin,
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blink::mojom::MediaStreamType type) override;
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bool IsNeverComposited(content::WebContents* web_contents) override;
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content::PictureInPictureResult EnterPictureInPicture(
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content::WebContents* web_contents) override;
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void ExitPictureInPicture() override;
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bool IsBackForwardCacheSupported() override;
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content::PreloadingEligibility IsPrerender2Supported(
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content::WebContents& web_contents) override;
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// content::WebContentsObserver methods.
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using content::WebContentsObserver::BeforeUnloadFired;
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void DidFinishNavigation(
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content::NavigationHandle* navigation_handle) override;
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void OnAudioStateChanged(bool audible) override;
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void AccessibilityEventReceived(
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const content::AXEventNotificationDetails& content_event_bundle) override;
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void AccessibilityLocationChangesReceived(
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const std::vector<content::AXLocationChangeNotificationDetails>& locData)
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override;
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void WebContentsDestroyed() override;
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private:
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friend class CefBrowserPlatformDelegateAlloy;
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static CefRefPtr<AlloyBrowserHostImpl> CreateInternal(
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const CefBrowserSettings& settings,
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CefRefPtr<CefClient> client,
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content::WebContents* web_contents,
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bool own_web_contents,
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scoped_refptr<CefBrowserInfo> browser_info,
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CefRefPtr<AlloyBrowserHostImpl> opener,
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bool is_devtools_popup,
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CefRefPtr<CefRequestContextImpl> request_context,
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std::unique_ptr<CefBrowserPlatformDelegate> platform_delegate,
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CefRefPtr<CefExtension> extension);
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AlloyBrowserHostImpl(
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const CefBrowserSettings& settings,
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CefRefPtr<CefClient> client,
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content::WebContents* web_contents,
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scoped_refptr<CefBrowserInfo> browser_info,
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CefRefPtr<AlloyBrowserHostImpl> opener,
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CefRefPtr<CefRequestContextImpl> request_context,
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std::unique_ptr<CefBrowserPlatformDelegate> platform_delegate,
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CefRefPtr<CefExtension> extension);
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// Give the platform delegate an opportunity to create the host window.
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bool CreateHostWindow();
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void StartAudioCapturer();
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void OnRecentlyAudibleTimerFired();
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CefWindowHandle opener_;
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const bool is_windowless_;
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CefWindowHandle host_window_handle_ = kNullWindowHandle;
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CefRefPtr<CefExtension> extension_;
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bool is_background_host_ = false;
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// Represents the current browser destruction state. Only accessed on the UI
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// thread.
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DestructionState destruction_state_ = DESTRUCTION_STATE_NONE;
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// True if the OS window hosting the browser has been destroyed. Only accessed
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// on the UI thread.
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bool window_destroyed_ = false;
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// Used for creating and managing JavaScript dialogs.
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std::unique_ptr<CefJavaScriptDialogManager> javascript_dialog_manager_;
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// Used for creating and managing context menus.
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std::unique_ptr<CefMenuManager> menu_manager_;
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// Used for capturing audio for CefAudioHandler.
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std::unique_ptr<CefAudioCapturer> audio_capturer_;
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// Timer for determining when "recently audible" transitions to false. This
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// starts running when a tab stops being audible, and is canceled if it starts
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// being audible again before it fires.
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std::unique_ptr<base::OneShotTimer> recently_audible_timer_;
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};
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#endif // CEF_LIBCEF_BROWSER_ALLOY_ALLOY_BROWSER_HOST_IMPL_H_
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