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netsurf/frontends/windows/corewindow.h

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/*
* Copyright 2016 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
#ifndef NETSURF_WINDOWS_COREWINDOW_H
#define NETSURF_WINDOWS_COREWINDOW_H
#include "netsurf/core_window.h"
extern struct core_window_table *win32_core_window_table;
/**
* nsw32 core window state
*/
struct nsw32_corewindow {
/** window handle */
HWND hWnd;
/** content width */
int content_width;
/** content height */
int content_height;
/** window title */
const char *title;
/** drag status set by core */
core_window_drag_status drag_status;
/**
* callback to draw on drawable area of nsw32 core window
*
* \param nsw32_cw The nsw32 core window structure.
* \param r The rectangle of the window that needs updating.
* \return NSERROR_OK on success otherwise apropriate error code
*/
nserror (*draw)(struct nsw32_corewindow *nsw32_cw, int scrollx, int scrolly, struct rect *r);
/**
* callback for keypress on nsw32 core window
*
* \param nsw32_cw The nsw32 core window structure.
* \param nskey The netsurf key code.
* \return NSERROR_OK if key processed,
* NSERROR_NOT_IMPLEMENTED if key not processed
* otherwise apropriate error code
*/
nserror (*key)(struct nsw32_corewindow *nsw32_cw, uint32_t nskey);
/**
* callback for mouse event on nsw32 core window
*
* \param nsw32_cw The nsw32 core window structure.
* \param mouse_state mouse state
* \param x location of event
* \param y location of event
* \return NSERROR_OK on sucess otherwise apropriate error code.
*/
nserror (*mouse)(struct nsw32_corewindow *nsw32_cw, browser_mouse_state mouse_state, int x, int y);
/**
* callback for window close event
*
* \param nsw32_cw The nsw32 core window structure.
* \return NSERROR_OK on sucess otherwise apropriate error code.
*/
nserror (*close)(struct nsw32_corewindow *nsw32_cw);
};
/**
* initialise elements of nsw32 core window.
*
* As a pre-requisite the draw, key and mouse callbacks must be defined
*
* \param hInstance The instance to create the core window in
* \param hWndParent parent window handle may be NULL for top level window.
* \param nsw32_cw A nsw32 core window structure to initialise
* \return NSERROR_OK on successful initialisation otherwise error code.
*/
nserror nsw32_corewindow_init(HINSTANCE hInstance,
HWND hWndParent,
struct nsw32_corewindow *nsw32_cw);
/**
* finalise elements of nsw32 core window.
*
* \param nsw32_cw A nsw32 core window structure to initialise
* \return NSERROR_OK on successful finalisation otherwise error code.
*/
nserror nsw32_corewindow_fini(struct nsw32_corewindow *nsw32_cw);
nserror nsw32_create_corewindow_class(HINSTANCE hInstance);
#endif