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Web Browser project mostly exposes interfaces, hiding all of the CEF3 implementation and technically allowing us to slot in another web system if necessary. Normal process will be to request a browser window interface from the web browser singleton. There is also an implementation of ISlateViewport so that it can be displayed via an SViewport. The UnrealCEFSubProcess executable is needed for CEF3 to run additional processes for rendering etc. I don't expect this to change very often so it should hopefully just be built once and distributed, since we can't currently specify a program dependency for other modules. Added a CEF3Utils project to share .dll loading code between web browser and the separate sub process executable. [CL 2317298 by Matthew Griffin in Main branch]
99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#if WITH_CEF3
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#if PLATFORM_WINDOWS
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#include "AllowWindowsPlatformTypes.h"
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#endif
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#include "include/cef_client.h"
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#if PLATFORM_WINDOWS
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#include "HideWindowsPlatformTypes.h"
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#endif
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// Forward Declarations
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class FWebBrowserWindow;
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/**
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* Implements CEF Client and other Browser level interfaces
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*/
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class FWebBrowserHandler : public CefClient,
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public CefDisplayHandler,
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public CefLifeSpanHandler,
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public CefLoadHandler,
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public CefRenderHandler,
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public CefRequestHandler
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{
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public:
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/**
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* Default Constructor
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*/
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FWebBrowserHandler();
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// CefClient Interface
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virtual CefRefPtr<CefDisplayHandler> GetDisplayHandler() override
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{
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return this;
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}
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virtual CefRefPtr<CefLifeSpanHandler> GetLifeSpanHandler() override
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{
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return this;
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}
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virtual CefRefPtr<CefLoadHandler> GetLoadHandler() override
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{
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return this;
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}
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virtual CefRefPtr<CefRenderHandler> GetRenderHandler() override
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{
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return this;
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}
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virtual CefRefPtr<CefRequestHandler> GetRequestHandler() override
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{
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return this;
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}
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// CefDisplayHandler Interface
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virtual void OnTitleChange(CefRefPtr<CefBrowser> Browser, const CefString& Title) override;
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// CefLifeSpanHandler Interface
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virtual void OnAfterCreated(CefRefPtr<CefBrowser> Browser) override;
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virtual void OnBeforeClose(CefRefPtr<CefBrowser> Browser) override;
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// CefLoadHandler Interface
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virtual void OnLoadError(CefRefPtr<CefBrowser> Browser,
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CefRefPtr<CefFrame> Frame,
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CefLoadHandler::ErrorCode InErrorCode,
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const CefString& ErrorText,
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const CefString& FailedUrl) override;
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// CefRenderHandler Interface
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virtual bool GetViewRect(CefRefPtr<CefBrowser> Browser, CefRect& Rect) override;
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virtual void OnPaint(CefRefPtr<CefBrowser> Browser,
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PaintElementType Type,
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const RectList& DirtyRects,
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const void* Buffer,
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int Width, int Height) override;
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virtual void OnCursorChange(CefRefPtr<CefBrowser> Browser, CefCursorHandle Cursor) override;
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// CefRequestHandler Interface
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virtual bool OnBeforeResourceLoad(CefRefPtr<CefBrowser> Browser,
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CefRefPtr<CefFrame> Frame,
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CefRefPtr<CefRequest> Request) override;
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/**
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* Pass in a pointer to our Browser Window so that events can be passed on
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*
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* @param InBrowserWindow The browser window this will be handling
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*/
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void SetBrowserWindow(TSharedPtr<FWebBrowserWindow> InBrowserWindow);
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private:
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/** Weak Pointer to our Web Browser window so that events can be passed on while it's valid*/
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TWeakPtr<FWebBrowserWindow> BrowserWindow;
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// Include the default reference counting implementation.
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IMPLEMENT_REFCOUNTING(FWebBrowserHandler);
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};
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#endif
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