2015-11-17 19:20:13 +01:00
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// Copyright (c) 2015 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_BROWSER_PLATFORM_DELEGATE_H_
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#define CEF_LIBCEF_BROWSER_BROWSER_PLATFORM_DELEGATE_H_
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#include <string>
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#include <vector>
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#include "include/cef_client.h"
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#include "include/cef_drag_data.h"
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#include "include/internal/cef_types.h"
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#include "include/views/cef_browser_view.h"
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#include "base/callback_forward.h"
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#include "extensions/common/mojom/view_type.mojom-forward.h"
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#include "third_party/blink/public/common/page/drag_operation.h"
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#include "third_party/blink/public/mojom/drag/drag.mojom-forward.h"
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#include "third_party/skia/include/core/SkColor.h"
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#include "ui/base/dragdrop/mojom/drag_drop_types.mojom-forward.h"
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#include "ui/base/window_open_disposition.h"
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class GURL;
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namespace blink {
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class WebGestureEvent;
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class WebMouseEvent;
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class WebMouseWheelEvent;
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class WebInputEvent;
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class WebTouchEvent;
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} // namespace blink
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namespace content {
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struct AXEventNotificationDetails;
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struct AXLocationChangeNotificationDetails;
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struct DropData;
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struct NativeWebKeyboardEvent;
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class RenderViewHost;
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class RenderViewHostDelegateView;
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class RenderWidgetHostImpl;
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class WebContents;
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class WebContentsView;
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} // namespace content
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namespace extensions {
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class Extension;
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class ExtensionHost;
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} // namespace extensions
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namespace gfx {
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class ImageSkia;
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class Point;
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class Rect;
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class Size;
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class Vector2d;
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} // namespace gfx
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namespace views {
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class Widget;
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}
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struct CefBrowserCreateParams;
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class CefBrowserHostBase;
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class CefJavaScriptDialogRunner;
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class CefMenuRunner;
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// Provides platform-specific implementations of browser functionality. All
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// methods are called on the browser process UI thread unless otherwise
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// indicated.
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class CefBrowserPlatformDelegate {
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public:
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CefBrowserPlatformDelegate(const CefBrowserPlatformDelegate&) = delete;
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CefBrowserPlatformDelegate& operator=(const CefBrowserPlatformDelegate&) =
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delete;
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// Create a new CefBrowserPlatformDelegate instance. May be called on multiple
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// threads.
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static std::unique_ptr<CefBrowserPlatformDelegate> Create(
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const CefBrowserCreateParams& create_params);
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// Called from AlloyBrowserHostImpl::Create.
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// Wait for the call to WebContentsCreated(owned=true) before taking ownership
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// of the resulting WebContents object.
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virtual content::WebContents* CreateWebContents(
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CefBrowserCreateParams& create_params,
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bool& own_web_contents);
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// Called to create the view objects for a new WebContents. Will only be
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// called a single time per instance. May be called on multiple threads. Only
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// used with windowless rendering.
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virtual void CreateViewForWebContents(
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content::WebContentsView** view,
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content::RenderViewHostDelegateView** delegate_view);
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// Called after the WebContents for a browser has been created. |owned| will
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// be true if |web_contents| was created via CreateWebContents() and we should
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// take ownership. This will also be called for popup WebContents created
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// indirectly by Chromium. Will only be called a single time per instance.
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virtual void WebContentsCreated(content::WebContents* web_contents,
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bool owned);
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// Called when Chromium is ready to hand over ownership of a popup
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// WebContents. WebContentsCreated(owned=false) will be called first for
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// |new_contents|. Will only be called a single time per instance. See also
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// the WebContentsDelegate documentation.
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virtual void AddNewContents(
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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 gfx::Rect& initial_rect,
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bool user_gesture,
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bool* was_blocked);
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// Called when the WebContents is destroyed. This will be called before
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// BrowserDestroyed(). Will only be called a single time per instance.
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virtual void WebContentsDestroyed(content::WebContents* web_contents);
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// See WebContentsDelegate documentation.
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virtual bool ShouldAllowRendererInitiatedCrossProcessNavigation(
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bool is_main_frame_navigation);
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// Called after the RenderViewHost is created.
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virtual void RenderViewCreated(content::RenderViewHost* render_view_host);
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// See WebContentsObserver documentation.
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virtual void RenderViewReady();
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// Called after the owning AlloyBrowserHostImpl is created. Will only be
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// called a single time per instance. Do not send any client notifications
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// from this method.
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virtual void BrowserCreated(CefBrowserHostBase* browser);
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// Called from AlloyBrowserHostImpl::Create.
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virtual void CreateExtensionHost(const extensions::Extension* extension,
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const GURL& url,
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extensions::mojom::ViewType host_type);
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// Returns the current extension host.
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virtual extensions::ExtensionHost* GetExtensionHost() const;
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// Send any notifications related to browser creation. Called after
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// BrowserCreated().
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virtual void NotifyBrowserCreated();
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// Send any notifications related to browser destruction. Called before
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// BrowserDestroyed().
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virtual void NotifyBrowserDestroyed();
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// Called before the owning AlloyBrowserHostImpl is destroyed. Will only be
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// called a single time per instance. All references to the
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// AlloyBrowserHostImpl and WebContents should be cleared when this method is
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// called. Do not send any client notifications from this method.
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virtual void BrowserDestroyed(CefBrowserHostBase* browser);
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// Create the window that hosts the browser. Will only be called a single time
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// per instance. Only used with windowed rendering.
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virtual bool CreateHostWindow();
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// Sends a message to close the window that hosts the browser. On native
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// platforms this will be done via the OS. DestroyBrowser will be called after
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// the native window has closed. Only used with windowed rendering.
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virtual void CloseHostWindow();
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// Return the OS handle for the window that hosts the browser. For windowed
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// rendering this will return the most immediate parent window handle. For
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// windowless rendering this will return the parent window handle specified by
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// the client, which may be NULL. May be called on multiple threads.
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virtual CefWindowHandle GetHostWindowHandle() const;
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// Returns the Widget owner for the browser window. Only used with windowed
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// rendering.
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virtual views::Widget* GetWindowWidget() const;
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// Returns the BrowserView associated with this browser. Only used with views-
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// based browsers.
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virtual CefRefPtr<CefBrowserView> GetBrowserView() const;
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// Called after the WebContents have been created for a new popup browser
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// parented to this browser but before the AlloyBrowserHostImpl is created for
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// the popup. |is_devtools| will be true if the popup will host DevTools. This
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// method will be called before WebContentsCreated() is called on
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// |new_platform_delegate|. Do not make the new browser visible in this
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// callback.
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virtual void PopupWebContentsCreated(
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const CefBrowserSettings& settings,
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CefRefPtr<CefClient> client,
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content::WebContents* new_web_contents,
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CefBrowserPlatformDelegate* new_platform_delegate,
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bool is_devtools);
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// Called after the AlloyBrowserHostImpl is created for a new popup browser
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// parented to this browser. |is_devtools| will be true if the popup will host
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// DevTools. This method will be called immediately after
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// CefLifeSpanHandler::OnAfterCreated() for the popup browser. It is safe to
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// make the new browser visible in this callback (for example, add the browser
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// to a window and show it).
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virtual void PopupBrowserCreated(CefBrowserHostBase* new_browser,
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bool is_devtools);
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// Returns the background color for the browser. The alpha component will be
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// either SK_AlphaTRANSPARENT or SK_AlphaOPAQUE (e.g. fully transparent or
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// fully opaque). SK_AlphaOPAQUE will always be returned for windowed
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// browsers. SK_ColorTRANSPARENT may be returned for windowless browsers to
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// enable transparency.
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virtual SkColor GetBackgroundColor() const;
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// Notify the window that it was resized.
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virtual void WasResized();
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// Send input events.
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virtual void SendKeyEvent(const CefKeyEvent& event);
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virtual void SendMouseClickEvent(const CefMouseEvent& event,
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CefBrowserHost::MouseButtonType type,
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bool mouseUp,
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int clickCount);
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virtual void SendMouseMoveEvent(const CefMouseEvent& event, bool mouseLeave);
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virtual void SendMouseWheelEvent(const CefMouseEvent& event,
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int deltaX,
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int deltaY);
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virtual void SendTouchEvent(const CefTouchEvent& event);
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// Send focus event. The browser's WebContents may be NULL when this method is
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// called.
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virtual void SetFocus(bool setFocus);
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// Send capture lost event.
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virtual void SendCaptureLostEvent();
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#if BUILDFLAG(IS_WIN) || (BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC))
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// The window hosting the browser is about to be moved or resized. Only used
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// on Windows and Linux.
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virtual void NotifyMoveOrResizeStarted();
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// Resize the host window to the given dimensions. Only used with windowed
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// rendering on Windows and Linux.
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virtual void SizeTo(int width, int height);
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#endif
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2022-05-13 13:38:41 +02:00
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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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virtual gfx::Point GetScreenPoint(const gfx::Point& view,
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bool want_dip_coords) const;
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// Open the specified text in the default text editor.
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virtual void ViewText(const std::string& text);
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// Forward the keyboard event to the application or frame window to allow
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// processing of shortcut keys.
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virtual bool HandleKeyboardEvent(
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const content::NativeWebKeyboardEvent& event);
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// See WebContentsDelegate documentation.
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virtual bool PreHandleGestureEvent(content::WebContents* source,
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const blink::WebGestureEvent& event);
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// See WebContentsDelegate documentation.
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virtual bool IsNeverComposited(content::WebContents* web_contents);
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// Invoke platform specific handling for the external protocol.
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static void HandleExternalProtocol(const GURL& url);
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// Returns the OS event handle, if any, associated with |event|.
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virtual CefEventHandle GetEventHandle(
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const content::NativeWebKeyboardEvent& event) const;
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// Create the platform-specific JavaScript dialog runner.
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virtual std::unique_ptr<CefJavaScriptDialogRunner>
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CreateJavaScriptDialogRunner();
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// Create the platform-specific menu runner.
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virtual std::unique_ptr<CefMenuRunner> CreateMenuRunner();
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// Returns true if this delegate implements windowless rendering. May be
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// called on multiple threads.
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virtual bool IsWindowless() const;
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// Returns true if this delegate implements views-hosted browser handling. May
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// be called on multiple threads.
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virtual bool IsViewsHosted() const;
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// Returns true if this delegate implements a browser with external
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// (client-provided) parent window. May be called on multiple threads.
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virtual bool HasExternalParent() const;
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2015-11-17 19:20:13 +01:00
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// Notify the browser that it was hidden. Only used with windowless rendering.
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virtual void WasHidden(bool hidden);
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// Notify the browser that screen information has changed. Only used with
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// windowless rendering.
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virtual void NotifyScreenInfoChanged();
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// Invalidate the view. Only used with windowless rendering.
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virtual void Invalidate(cef_paint_element_type_t type);
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2020-07-04 20:21:34 +02:00
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// Send the external begin frame message. Only used with windowless rendering.
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2018-07-03 02:46:03 +02:00
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virtual void SendExternalBeginFrame();
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2015-11-17 19:20:13 +01:00
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// Set the windowless frame rate. Only used with windowless rendering.
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virtual void SetWindowlessFrameRate(int frame_rate);
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2016-10-28 18:11:24 +02:00
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// IME-related callbacks. See documentation in CefBrowser and
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// CefRenderHandler. Only used with windowless rendering.
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virtual void ImeSetComposition(
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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);
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virtual void ImeCommitText(const CefString& text,
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const CefRange& replacement_range,
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int relative_cursor_pos);
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virtual void ImeFinishComposingText(bool keep_selection);
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virtual void ImeCancelComposition();
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2015-11-17 19:20:13 +01:00
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// Drag/drop-related callbacks. See documentation in CefRenderHandler. Only
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// used with windowless rendering.
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virtual void DragTargetDragEnter(CefRefPtr<CefDragData> drag_data,
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2017-05-17 11:29:28 +02:00
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const CefMouseEvent& event,
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cef_drag_operations_mask_t allowed_ops);
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2015-11-17 19:20:13 +01:00
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virtual void DragTargetDragOver(const CefMouseEvent& event,
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cef_drag_operations_mask_t allowed_ops);
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virtual void DragTargetDragLeave();
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virtual void DragTargetDrop(const CefMouseEvent& event);
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2020-10-08 21:54:42 +02:00
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virtual void StartDragging(
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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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2021-01-28 00:13:12 +01:00
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virtual void UpdateDragCursor(ui::mojom::DragOperation operation);
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2017-05-17 11:29:28 +02:00
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virtual void DragSourceEndedAt(int x, int y, cef_drag_operations_mask_t op);
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2015-11-17 19:20:13 +01:00
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virtual void DragSourceSystemDragEnded();
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2017-05-12 20:28:25 +02:00
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virtual void AccessibilityEventReceived(
|
2018-06-08 18:53:10 +02:00
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const content::AXEventNotificationDetails& eventData);
|
2017-05-12 20:28:25 +02:00
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virtual void AccessibilityLocationChangesReceived(
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const std::vector<content::AXLocationChangeNotificationDetails>& locData);
|
2019-07-17 20:47:27 +02:00
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virtual gfx::Point GetDialogPosition(const gfx::Size& size);
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|
|
virtual gfx::Size GetMaximumDialogSize();
|
2015-11-17 19:20:13 +01:00
|
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|
2020-07-03 22:13:27 +02:00
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// See CefBrowserHost documentation.
|
2020-07-04 20:21:34 +02:00
|
|
|
virtual void SetAutoResizeEnabled(bool enabled,
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const CefSize& min_size,
|
|
|
|
const CefSize& max_size);
|
2020-07-03 22:13:27 +02:00
|
|
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virtual void SetAccessibilityState(cef_state_t accessibility_state);
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virtual bool IsPrintPreviewSupported() const;
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virtual void Print();
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virtual void PrintToPDF(const CefString& path,
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|
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const CefPdfPrintSettings& settings,
|
|
|
|
CefRefPtr<CefPdfPrintCallback> callback);
|
2022-02-17 19:17:29 +01:00
|
|
|
virtual void Find(const CefString& searchText,
|
2020-07-03 22:13:27 +02:00
|
|
|
bool forward,
|
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|
|
bool matchCase,
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|
|
bool findNext);
|
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|
|
virtual void StopFinding(bool clearSelection);
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|
|
|
2015-11-17 19:20:13 +01:00
|
|
|
protected:
|
2021-06-17 22:08:01 +02:00
|
|
|
// Allow deletion via std::unique_ptr only.
|
2015-12-09 17:10:16 +01:00
|
|
|
friend std::default_delete<CefBrowserPlatformDelegate>;
|
2015-11-17 19:20:13 +01:00
|
|
|
|
|
|
|
CefBrowserPlatformDelegate();
|
|
|
|
virtual ~CefBrowserPlatformDelegate();
|
|
|
|
|
2020-01-23 22:58:01 +01:00
|
|
|
static int TranslateWebEventModifiers(uint32 cef_modifiers);
|
2015-11-17 19:20:13 +01:00
|
|
|
|
2020-07-03 22:13:27 +02:00
|
|
|
// Not owned by this object.
|
|
|
|
content::WebContents* web_contents_ = nullptr;
|
2020-09-25 03:40:47 +02:00
|
|
|
CefBrowserHostBase* browser_ = nullptr;
|
2015-11-17 19:20:13 +01:00
|
|
|
};
|
|
|
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|
|
#endif // CEF_LIBCEF_BROWSER_BROWSER_PLATFORM_DELEGATE_H_
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