browser-client.hpp

/******************************************************************************
 Copyright (C) 2014 by John R. Bradley <jrb@turrettech.com>
 Copyright (C) 2018 by Hugh Bailey ("Jim") <jim@obsproject.com>

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

#pragma once

#include <graphics/graphics.h>
#include "cef-headers.hpp"
#include "browser-config.h"

#define USE_TEXTURE_COPY 0

struct BrowserSource;

class BrowserClient : public CefClient,
                      public CefDisplayHandler,
                      public CefLifeSpanHandler,
                      public CefContextMenuHandler,
                      public CefRenderHandler,
                      public CefLoadHandler {

#if EXPERIMENTAL_SHARED_TEXTURE_SUPPORT_ENABLED
#if USE_TEXTURE_COPY
	gs_texture_t *texture = nullptr;
#endif
	void *last_handle = INVALID_HANDLE_VALUE;
#endif
	bool sharing_available = false;

public:
	BrowserSource *bs;
	CefRect popupRect;
	CefRect originalPopupRect;

	inline BrowserClient(BrowserSource *bs_, bool sharing_avail)
		: bs(bs_)
	{
		sharing_available = sharing_avail;
	}

	virtual ~BrowserClient();

	/* CefClient */
	virtual CefRefPtr<CefLoadHandler> GetLoadHandler() override;
	virtual CefRefPtr<CefRenderHandler> GetRenderHandler() override;
	virtual CefRefPtr<CefDisplayHandler> GetDisplayHandler() override;
	virtual CefRefPtr<CefLifeSpanHandler> GetLifeSpanHandler() override;
	virtual CefRefPtr<CefContextMenuHandler> GetContextMenuHandler()
		override;

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

	/* CefDisplayHandler */
	virtual bool OnConsoleMessage(CefRefPtr<CefBrowser> browser,
#if CHROME_VERSION_BUILD >= 3282
			cef_log_severity_t level,
#endif
			const CefString &message,
			const CefString &source,
			int line) override;

	/* CefLifeSpanHandler */
	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) override;

	/* CefContextMenuHandler */
	virtual void OnBeforeContextMenu(
			CefRefPtr<CefBrowser> browser,
			CefRefPtr<CefFrame> frame,
			CefRefPtr<CefContextMenuParams> params,
			CefRefPtr<CefMenuModel> model) override;

	/* CefRenderHandler */
#if CHROME_VERSION_BUILD >= 3578
	virtual void GetViewRect(
#else
	virtual bool GetViewRect(
#endif
			CefRefPtr<CefBrowser> browser,
			CefRect &rect) override;
	virtual void OnPaint(
			CefRefPtr<CefBrowser> browser,
			PaintElementType type,
			const RectList &dirtyRects,
			const void *buffer,
			int width,
			int height) override;
#if EXPERIMENTAL_SHARED_TEXTURE_SUPPORT_ENABLED
	virtual void OnAcceleratedPaint(
			CefRefPtr<CefBrowser> browser,
			PaintElementType type,
			const RectList &dirtyRects,
			void *shared_handle) override;
#endif

	/* CefLoadHandler */
	virtual void OnLoadEnd(
			CefRefPtr<CefBrowser> browser,
			CefRefPtr<CefFrame> frame,
			int httpStatusCode) override;

	IMPLEMENT_REFCOUNTING(BrowserClient);
};