cae4ae2c71
It handles exit() properly, calling the handler also when the plugin returns normally (also make exit() more standard compliant while at it). It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore. To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it. In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit(). In future plugin_crt0.c could also handle clearing bss, initializing iram and more. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
131 lines
3 KiB
C
131 lines
3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Gilles Roux
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* 2003 Garrett Derner
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* 2010 Yoshihisa Uchida
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef PLUGIN_TEXT_VIEWER_ACTION_H
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#define PLUGIN_TEXT_VIEWER_ACTION_H
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#include "tv_menu.h"
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/* horizontal scroll mode */
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enum
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{
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TV_HORIZONTAL_SCROLL_COLUMN = 0, /* left/right one column */
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TV_HORIZONTAL_SCROLL_SCREEN, /* left/right one screen */
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TV_HORIZONTAL_SCROLL_PREFS, /* left/right follows the settings */
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};
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/*vertical scroll mode */
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enum
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{
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TV_VERTICAL_SCROLL_LINE = 0, /* up/down one line */
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TV_VERTICAL_SCROLL_PAGE, /* up/down one page */
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TV_VERTICAL_SCROLL_PREFS, /* up/down follows the settings */
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};
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/*
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* initialize the action module
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*
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* [In/Out] buf
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* the start pointer of the buffer
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*
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* [In/Out] size
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* buffer size
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*
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* return
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* true initialize success
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* false initialize failure
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*/
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bool tv_init_action(unsigned char **buf, size_t *bufsize);
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/*
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* finalize modules
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*/
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void tv_exit(void);
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/*
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* load the file
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*
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* [In] file
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* read file name
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*
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* return
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* true load success
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* false load failure
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*/
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bool tv_load_file(const unsigned char *file);
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/* draw the current page */
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void tv_draw(void);
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/*
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* scroll up
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*
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* [In] mode
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* scroll mode
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*/
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void tv_scroll_up(unsigned mode);
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/*
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* scroll down
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*
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* [In] mode
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* scroll mode
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*/
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void tv_scroll_down(unsigned mode);
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/*
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* scroll left
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*
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* [In] mode
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* scroll mode
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*/
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void tv_scroll_left(unsigned mode);
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/*
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* scroll right
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*
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* [In] mode
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* scroll mode
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*/
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void tv_scroll_right(unsigned mode);
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/* jump to the top */
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void tv_top(void);
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/* jump to the bottom */
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void tv_bottom(void);
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/*
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* display menu
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*
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* return
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* the following value returns
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* TV_MENU_RESULT_EXIT_MENU menu exit and continue this plugin
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* TV_MENU_RESULT_EXIT_PLUGIN request to exit this plugin
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* TV_MENU_RESULT_ATTACHED_USB connect USB cable
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*/
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unsigned tv_menu(void);
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/* add or remove the bookmark to the current position */
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void tv_add_or_remove_bookmark(void);
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#endif
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