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netsurf/frontends/riscos/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/>.
*/
/**
* \file
* RISC OS core window interface
*
* This module is an object that must be encapsulated. Client users
* should embed a struct ro_corewindow at the beginning of their
* context for this display surface, fill in relevant data and then
* call ro_corewindow_init()
*/
#ifndef NETSURF_RISCOS_COREWINDOW_H
#define NETSURF_RISCOS_COREWINDOW_H
#include "netsurf/core_window.h"
extern struct core_window_table *riscos_core_window_table;
/**
* ro core window state
*/
struct ro_corewindow {
/** window handle */
wimp_w wh;
/** toolbar */
struct toolbar *toolbar;
/** content plot origin y relative to window */
int origin_y;
/** content width */
int content_width;
/** content height */
int content_height;
/** drag status set by core */
core_window_drag_status drag_status;
/**
* callback to draw on drawable area of ro core window
*
* \param ro_cw The riscos core window structure.
* \param originx The risc os plotter x origin.
* \param originy The risc os plotter y origin.
* \param r The rectangle of the window that needs updating.
* \return NSERROR_OK on success otherwise apropriate error code
*/
nserror (*draw)(struct ro_corewindow *ro_cw, int originx, int originy, struct rect *r);
/**
* callback for keypress on ro core window
*
* \param ro_cw The ro 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 ro_corewindow *ro_cw, uint32_t nskey);
/**
* callback for mouse event on ro core window
*
* \param ro_cw The ro 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 ro_corewindow *ro_cw, browser_mouse_state mouse_state, int x, int y);
/**
* callback for clicks in ro core window toolbar.
*
* \param ro_cw The ro core window structure.
* \param action The button bar action.
* \return NSERROR_OK if config saved, otherwise apropriate error code
*/
nserror (*toolbar_click)(struct ro_corewindow *ro_cw, button_bar_action action);
/**
* callback for updating state of buttons in ro core window toolbar.
*
* \param ro_cw The ro core window structure.
* \return NSERROR_OK if config saved, otherwise apropriate error code
*/
nserror (*toolbar_update)(struct ro_corewindow *ro_cw);
/**
* callback for saving ro core window toolbar state.
*
* \param ro_cw The ro core window structure.
* \param config The new toolbar configuration.
* \return NSERROR_OK if config saved, otherwise apropriate error code
*/
nserror (*toolbar_save)(struct ro_corewindow *ro_cw, char *config);
};
/**
* initialise elements of riscos core window.
*
* As a pre-requisite the draw, key and mouse callbacks must be defined
*
* \param ro_cw A riscos core window structure to initialise
* \param tb_buttons toolbar button bar context
* \param tb_order The order of toolbar buttons
* \param tb_style The style of toolbar buttons
* \param tb_help Thh toolbar help text
* \return NSERROR_OK on successful initialisation otherwise error code.
*/
nserror ro_corewindow_init(struct ro_corewindow *ro_cw, const struct button_bar_buttons *tb_buttons, char *tb_order, theme_style tb_style, const char *tb_help);
/**
* finalise elements of ro core window.
*
* \param ro_cw A riscos core window structure to initialise
* \return NSERROR_OK on successful finalisation otherwise error code.
*/
nserror ro_corewindow_fini(struct ro_corewindow *ro_cw);
#endif