cef_client_handler.h

#pragma once

#include "include/cef_client.h"
#include <functional>

#define WM_URL_CHANGED			(WM_APP+1)
#define WM_TITLE_CHANGED			(WM_APP+2)
#define WM_LOAD_CHANGED		(WM_APP+3)

#define _CEF_BLANK_ _T("about:blank")

class CCefBrowserUI;

class CCefClientHandler
	: public CefClient
	, public CefLifeSpanHandler
	, public CefContextMenuHandler
	, public CefLoadHandler
	, public CefDragHandler
	, public CefDownloadHandler
	, public CefKeyboardHandler
	, public CefDisplayHandler
{
public:


	//virtual CefRefPtr<CefDownloadHandler> GetDownloadHandler() override;  // 


	CCefClientHandler(CCefBrowserUI* pOwner) :m_pOwner(pOwner){}

	CefRefPtr<CefLifeSpanHandler>		GetLifeSpanHandler()		{ return this; }
	CefRefPtr<CefContextMenuHandler>	GetContextMenuHandler()		{ return this; }
	CefRefPtr<CefLoadHandler>			GetLoadHandler()			{ return this; }
	CefRefPtr<CefDragHandler>			GetDragHandler()			{ return this; }
	CefRefPtr<CefDownloadHandler> CCefClientHandler::GetDownloadHandler() //ʵ
	{
		return this;
	}
	CefRefPtr<CefDisplayHandler> GetDisplayHandler() override { return this; }


	CefRefPtr<CefKeyboardHandler> CCefClientHandler::GetKeyboardHandler()
	{
		return this;
	}



	void CreateBrowser(HWND hParentWnd, RECT rc);
	void CloseBrowser(CefRefPtr<CefBrowser> browser);
	void Close();

	bool OnProcessMessageReceived(CefRefPtr<CefBrowser> browser
		, CefProcessId source_process
		, CefRefPtr<CefProcessMessage> message) OVERRIDE;


	// CefLifeSpanHandler methods:
	void OnAfterCreated(CefRefPtr<CefBrowser> browser) OVERRIDE;

	virtual void OnBeforeDownload(
		CefRefPtr<CefBrowser> browser,
		CefRefPtr<CefDownloadItem> download_item,
		const CefString& suggested_name,
		CefRefPtr<CefBeforeDownloadCallback> callback)  OVERRIDE;

	virtual void OnDownloadUpdated(
		CefRefPtr<CefBrowser> browser,
		CefRefPtr<CefDownloadItem> download_item,
		CefRefPtr<CefDownloadItemCallback> callback);



	virtual bool OnBeforePopup(CefRefPtr<CefBrowser> browser,
		CefRefPtr<CefFrame> frame,
		const CefString& target_url,
		const CefString& target_frame_name,
		WindowOpenDisposition target_disposition,
		bool user_gesture,
		const CefPopupFeatures& popupFeatures,
		CefWindowInfo& windowInfo,
		CefRefPtr<CefClient>& client,
		CefBrowserSettings& settings,
		bool* no_javascript_access); 
	// CefContextMenuHandler methods:
	virtual void OnBeforeContextMenu(CefRefPtr<CefBrowser> browser
		, CefRefPtr<CefFrame> frame
		, CefRefPtr<CefContextMenuParams> params
		, CefRefPtr<CefMenuModel> model) OVERRIDE;

	virtual void OnAddressChange(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame, const CefString& url) OVERRIDE;
	virtual void OnTitleChange(CefRefPtr<CefBrowser> browser,const CefString& title) override;
	virtual void OnLoadingStateChange(CefRefPtr<CefBrowser> browser,bool isLoading,bool canGoBack,bool canGoForward) OVERRIDE;


	// CefLoadHandler methods:
	void OnLoadStart(CefRefPtr<CefBrowser> browser
		, CefRefPtr<CefFrame> frame) OVERRIDE;

	void OnLoadEnd(CefRefPtr<CefBrowser> browser
		, CefRefPtr<CefFrame> frame
		, int httpStatusCode) OVERRIDE;

	void OnLoadError(CefRefPtr<CefBrowser> browser
		, CefRefPtr<CefFrame> frame
		, ErrorCode errorCode
		, const CefString& errorText
		, const CefString& failedUrl) OVERRIDE;

	// CefDragHandler Event
	typedef cef_drag_operations_mask_t DragOperationsMask;

	bool OnDragEnter(CefRefPtr<CefBrowser> browser
		, CefRefPtr<CefDragData> dragData
		, DragOperationsMask mask)OVERRIDE;

	void SetHwnd(HWND wnd)
	{
		m_hwnd = wnd;
	}

private:
	void exec_on_main_thread(std::function<void(void)> task);
	HWND m_hwnd;

private:
	CCefBrowserUI* m_pOwner;

	IMPLEMENT_REFCOUNTING(CCefClientHandler);
};