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
482 lines
15 KiB
C
482 lines
15 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) 2010 Daniel Rigby
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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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#include "plugin.h"
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#include "lib/playback_control.h"
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#define MAX_LIST_SIZE 400
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#define DESC_SIZE 40
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#define MAX_LINE_LEN (DESC_SIZE + 1)
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enum flag_type {
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FL_CLEARED = 0,
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FL_SET,
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FL_CATEGORY
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};
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enum view_type {
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EDIT_SHOPPING_LIST = 0,
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VIEW_SHOPPING_LIST
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};
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#define VIEW_TYPE_SIZE VIEW_SHOPPING_LIST + 1
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struct items_list_s {
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unsigned int id;
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enum flag_type flag;
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char desc[DESC_SIZE];
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};
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static struct items_list_s items_list[MAX_LIST_SIZE];
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static int total_item_count = 0;
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static int view_id_list[MAX_LIST_SIZE];
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static int view_item_count;
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static enum view_type view = EDIT_SHOPPING_LIST;
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static char filename[MAX_PATH];
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static bool changed = false;
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static bool show_categories = true;
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static char category_string[] = "Hide categories";
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static const char *list_get_name_cb(int selected_item, void* data,
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char* buf, size_t buf_len)
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{
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(void)data;
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rb->strlcpy(buf, items_list[view_id_list[selected_item]].desc, buf_len);
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return buf;
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}
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static enum themable_icons list_get_icon_cb(int selected_item, void *data)
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{
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(void)data;
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if (items_list[view_id_list[selected_item]].flag == FL_CATEGORY)
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return Icon_Rockbox;
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else if (items_list[view_id_list[selected_item]].flag == FL_SET)
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return Icon_Cursor;
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else
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return Icon_NOICON;
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}
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bool save_changes(void)
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{
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int fd;
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int i;
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fd = rb->open(filename,O_WRONLY|O_CREAT|O_TRUNC);
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if (fd < 0)
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{
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rb->splash(HZ*2, "Changes NOT saved");
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return false;
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}
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rb->lcd_clear_display();
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(1);
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#endif
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for (i = 0;i < total_item_count; i++)
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{
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switch (items_list[i].flag)
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{
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case FL_CATEGORY:
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{
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rb->fdprintf(fd,"#%s\n",items_list[i].desc);
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break;
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}
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case FL_SET:
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{
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rb->fdprintf(fd,"!%s\n",items_list[i].desc);
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break;
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}
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case FL_CLEARED:
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{
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rb->fdprintf(fd," %s\n",items_list[i].desc);
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break;
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}
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}
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}
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/* save current view */
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rb->fdprintf(fd,"$%d%d\n",view, show_categories);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(0);
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#endif
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rb->close(fd);
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return true;
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}
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void create_view(struct gui_synclist *lists)
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{
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unsigned int cnt = 0;
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int i, j;
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switch (view)
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{
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case EDIT_SHOPPING_LIST:
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{
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for (i = 0; i < total_item_count; i++)
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{
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if (show_categories || (items_list[i].flag != FL_CATEGORY))
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view_id_list[cnt++] = i;
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}
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view_item_count = cnt;
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rb->gui_synclist_set_title(lists,"Select items",Icon_Playlist);
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break;
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}
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case VIEW_SHOPPING_LIST:
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{
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for (i = 0; i < total_item_count; i++)
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{
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if ((items_list[i].flag == FL_CATEGORY) && show_categories)
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{
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for (j = i+1; j < total_item_count; j++)
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{
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if (items_list[j].flag == FL_SET)
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{
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view_id_list[cnt++] = i;
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break;
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}
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if (items_list[j].flag == FL_CATEGORY)
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break;
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}
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}
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else if (items_list[i].flag == FL_SET)
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view_id_list[cnt++] = i;
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}
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view_item_count = cnt;
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rb->gui_synclist_set_title(lists,"Shopping list",Icon_Playlist);
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break;
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}
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}
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}
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bool toggle(int selected_item)
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{
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if (items_list[view_id_list[selected_item]].flag == FL_CATEGORY)
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return false;
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else if (items_list[view_id_list[selected_item]].flag == FL_SET)
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items_list[view_id_list[selected_item]].flag = FL_CLEARED;
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else
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items_list[view_id_list[selected_item]].flag = FL_SET;
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return true;
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}
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void update_category_string(void)
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{
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if (show_categories)
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rb->strcpy(category_string,"Hide categories");
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else
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rb->strcpy(category_string,"Show categories");
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}
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enum plugin_status load_file(void)
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{
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int fd;
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static char temp_line[DESC_SIZE];
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static struct items_list_s new_item;
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static int count = 0;
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int linelen;
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total_item_count = 0;
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fd = rb->open(filename,O_RDONLY);
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if (fd < 0)
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{
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rb->splashf(HZ*2,"Couldn't open file: %s",filename);
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return PLUGIN_ERROR;
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}
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/* read in the file */
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while (rb->read_line(fd,temp_line,MAX_LINE_LEN))
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{
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if (rb->strncmp(temp_line, "$", 1) == 0)
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{
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/* read view preferences */
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linelen = rb->strlen(temp_line);
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if (linelen >= 2)
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{
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unsigned int val = temp_line[1] - '0';
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if (val < VIEW_TYPE_SIZE)
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{
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view = val;
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}
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}
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if (linelen >= 3)
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{
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unsigned int val = temp_line[2] - '0';
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if (val <= 2)
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{
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show_categories = val;
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update_category_string();
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}
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}
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}
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else
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{
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new_item.id = count;
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if (rb->strncmp(temp_line, " ", 1) == 0)
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{
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/* read description, flag = cleared */
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new_item.flag = FL_CLEARED;
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rb->memcpy(new_item.desc, &temp_line[1], DESC_SIZE);
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}
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else if (rb->strncmp(temp_line, "!", 1) == 0)
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{
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/* read description, flag = set */
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new_item.flag = FL_SET;
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rb->memcpy(new_item.desc, &temp_line[1], DESC_SIZE);
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}
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else if (rb->strncmp(temp_line, "#", 1) == 0)
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{
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/* read description, flag = category */
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new_item.flag = FL_CATEGORY;
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rb->memcpy(new_item.desc, &temp_line[1], DESC_SIZE);
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}
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else
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{
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/* read description, flag = cleared */
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new_item.flag = FL_CLEARED;
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rb->memcpy(new_item.desc, temp_line, DESC_SIZE);
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}
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items_list[total_item_count] = new_item;
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total_item_count++;
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if (total_item_count == MAX_LIST_SIZE)
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{
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total_item_count = MAX_LIST_SIZE - 1;
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rb->splashf(HZ*2, "Truncating shopping list to %d items",
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MAX_LIST_SIZE - 1);
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changed = true;
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rb->close(fd);
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return PLUGIN_OK;
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}
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}
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}
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rb->close(fd);
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changed = false;
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return PLUGIN_OK;
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}
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/* this is the plugin entry point */
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enum plugin_status plugin_start(const void* parameter)
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{
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struct gui_synclist lists;
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bool exit = false;
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int button;
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int cur_sel = 0;
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#if LCD_DEPTH > 1
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rb->lcd_set_backdrop(NULL);
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#endif
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(1);
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#endif
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if (parameter)
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{
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rb->strcpy(filename,(char*)parameter);
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if (load_file() == PLUGIN_ERROR)
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return PLUGIN_ERROR;
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}
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else
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return PLUGIN_ERROR;
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(0);
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#endif
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/* now dump it in the list */
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rb->gui_synclist_init(&lists,list_get_name_cb,0, false, 1, NULL);
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rb->gui_synclist_set_icon_callback(&lists, list_get_icon_cb);
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rb->gui_synclist_limit_scroll(&lists,true);
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create_view(&lists);
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rb->gui_synclist_set_nb_items(&lists,view_item_count);
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rb->gui_synclist_select_item(&lists, 0);
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rb->gui_synclist_draw(&lists);
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rb->lcd_update();
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while (!exit)
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{
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rb->gui_synclist_draw(&lists);
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cur_sel = rb->gui_synclist_get_sel_pos(&lists);
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button = rb->get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
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if (rb->gui_synclist_do_button(&lists,&button,LIST_WRAP_UNLESS_HELD))
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continue;
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switch (button)
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{
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case ACTION_STD_CONTEXT:
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case ACTION_STD_OK:
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{
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changed |= toggle(cur_sel);
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break;
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}
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case ACTION_STD_MENU:
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{
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switch(view)
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{
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case EDIT_SHOPPING_LIST:
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{
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MENUITEM_STRINGLIST(menu, "Options", NULL,
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"View shopping list",
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"Clear all items",
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"Mark all items",
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category_string,
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"Revert to saved",
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"Show Playback Menu",);
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switch (rb->do_menu(&menu, NULL, NULL, false))
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{
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case 0:
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{
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/* view shopping list */
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view = VIEW_SHOPPING_LIST;
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changed = true;
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break;
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}
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case 1:
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{
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/* clear all items */
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int i;
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for (i = 0; i < total_item_count; i++)
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{
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if (items_list[i].flag == FL_SET)
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items_list[i].flag = FL_CLEARED;
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}
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changed = true;
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break;
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}
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case 2:
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{
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/* mark all items */
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int i;
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for (i = 0; i < total_item_count; i++)
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{
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if (items_list[i].flag == FL_CLEARED)
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items_list[i].flag = FL_SET;
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}
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changed = true;
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break;
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}
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case 3:
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{
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/* toggle categories */
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show_categories ^= true;
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update_category_string();
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changed = true;
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break;
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}
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case 4:
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{
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/* revert to saved */
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if (load_file() == PLUGIN_ERROR)
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return PLUGIN_ERROR;
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break;
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}
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case 5:
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{
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/* playback menu */
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playback_control(NULL);
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break;
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}
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default:
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{
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break;
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}
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}
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break;
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}
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case VIEW_SHOPPING_LIST:
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{
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MENUITEM_STRINGLIST(menu, "Options", NULL,
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"Edit list",
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"Reset list",
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category_string,
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"Revert to saved",
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"Show Playback Menu",);
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switch (rb->do_menu(&menu, NULL, NULL, false))
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{
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case 0:
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{
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/* edit list */
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view = EDIT_SHOPPING_LIST;
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changed = true;
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break;
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}
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case 1:
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{
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/* reset list */
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int i;
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for (i = 0; i < total_item_count; i++)
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{
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if (items_list[i].flag == FL_SET)
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items_list[i].flag = FL_CLEARED;
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}
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view = EDIT_SHOPPING_LIST;
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changed = true;
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break;
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}
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case 2:
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{
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/* toggle categories */
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show_categories ^= true;
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update_category_string();
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changed = true;
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break;
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}
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case 3:
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{
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/* revert to saved */
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if (load_file() == PLUGIN_ERROR)
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return PLUGIN_ERROR;
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break;
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}
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case 4:
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{
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/* playback menu */
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playback_control(NULL);
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break;
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}
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default:
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{
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break;
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}
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}
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break;
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}
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}
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break;
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}
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case ACTION_STD_CANCEL:
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{
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if (changed)
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save_changes();
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exit = 1;
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break;
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}
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}
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create_view(&lists);
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rb->gui_synclist_set_nb_items(&lists,view_item_count);
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if (view_item_count > 0 && view_item_count <= cur_sel)
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rb->gui_synclist_select_item(&lists,view_item_count-1);
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}
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return PLUGIN_OK;
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}
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