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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 Bryan Childs
* Copyright (c) 2007 Alexander Levin
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "shortcuts.h"
PLUGIN_HEADER
enum sc_list_action_type
{
SCLA_NONE,
SCLA_SELECT,
SCLA_DELETE,
SCLA_USB,
};
static char *link_filename;
static bool user_file;
static int gselected_item;
static bool usb_connected = false;
enum sc_list_action_type draw_sc_list(struct gui_synclist gui_sc);
/* Will be passed sc_file* as data */
char* build_sc_list(int selected_item, void *data,
char *buffer, size_t buffer_len);
/* Returns true iff we should leave the main loop */
bool list_sc(bool is_editable);
bool goto_entry(char *file_or_dir);
bool ends_with(char *str, char *suffix);
enum sc_list_action_type draw_sc_list(struct gui_synclist gui_sc)
{
int button;
rb->gui_synclist_draw(&gui_sc);
while (true) {
/* user input */
button = rb->get_action(CONTEXT_LIST, TIMEOUT_BLOCK);
if (rb->gui_synclist_do_button(&gui_sc, &button,
LIST_WRAP_UNLESS_HELD)) {
/* automatic handling of user input.
* _UNLESS_HELD can be _ON or _OFF also
* selection changed, so redraw */
continue;
}
switch (button) { /* process the user input */
case ACTION_STD_OK:
gselected_item = rb->gui_synclist_get_sel_pos(&gui_sc);
return SCLA_SELECT;
case ACTION_STD_MENU:
/* Only allow delete entries in the default file
* since entries can be appended (with a plugin)
* to the default file only. The behaviour is thus
* symmetric in this respect. */
if (!user_file) {
gselected_item = rb->gui_synclist_get_sel_pos(&gui_sc);
return SCLA_DELETE;
}
break;
case ACTION_STD_CANCEL:
return SCLA_NONE;
default:
if (rb->default_event_handler(button) == SYS_USB_CONNECTED) {
return SCLA_USB;
}
}
}
}
char* build_sc_list(int selected_item, void *data,
char *buffer, size_t buffer_len)
{
sc_file_t *file = (sc_file_t*)data;
if (!is_valid_index(file, selected_item)) {
return NULL;
}
sc_entry_t *entry = file->entries + selected_item;
rb->snprintf(buffer, buffer_len, "%s", entry->disp);
return buffer;
}
bool list_sc(bool is_editable)
{
int selected_item = 0;
char selected_dir[MAX_PATH];
enum sc_list_action_type action = SCLA_NONE;
struct gui_synclist gui_sc;
rb->memset(selected_dir, 0, sizeof(selected_dir));
/* Setup the GUI list object, draw it to the screen,
* and then handle the user input to it */
rb->gui_synclist_init(&gui_sc, &build_sc_list, &sc_file, false, 1, NULL);
rb->gui_synclist_set_title(&gui_sc,
(is_editable?"Shortcuts (editable)":"Shortcuts (sealed)"), NOICON);
rb->gui_synclist_set_nb_items(&gui_sc, sc_file.entry_cnt);
rb->gui_synclist_limit_scroll(&gui_sc, false);
rb->gui_synclist_select_item(&gui_sc, 0);
/* Draw the prepared widget to the LCD now */
action = draw_sc_list(gui_sc);
if (action == SCLA_USB) {
usb_connected = true;
return true;
}
/* which item do we action? */
selected_item = gselected_item;
if (!is_valid_index(&sc_file, selected_item)) {
/* This should never happen */
rb->splash(HZ*2, "Bad entry selected!");
return true;
}
/* perform the following actions if the user "selected"
* the item in the list (i.e. they want to go there
* in the filebrowser tree */
switch(action) {
case SCLA_SELECT:
return goto_entry(sc_file.entries[selected_item].path);
case SCLA_DELETE:
rb->splashf(HZ, "Deleting %s", sc_file.entries[selected_item].disp);
remove_entry(&sc_file, selected_item);
dump_sc_file(&sc_file, link_filename);
return (sc_file.entry_cnt == 0);
default:
return true;
}
}
bool goto_entry(char *file_or_dir)
{
DEBUGF("Trying to go to '%s'...\n", file_or_dir);
bool is_dir = ends_with(file_or_dir, PATH_SEPARATOR);
bool exists;
char *what;
if (is_dir) {
what = "Directory";
exists = rb->dir_exists(file_or_dir);
} else {
what = "File";
exists = rb->file_exists(file_or_dir);
}
if (!exists) {
rb->splashf(HZ*2, "%s %s no longer exists on disk", what, file_or_dir);
return false;
}
/* Set the browsers dirfilter to the global setting
* This is required in case the plugin was launched
* from the plugins browser, in which case the
* dirfilter is set to only display .rock files */
rb->set_dirfilter(rb->global_settings->dirfilter);
/* Change directory to the entry selected by the user */
rb->set_current_file(file_or_dir);
return true;
}
bool ends_with(char *string, char *suffix)
{
unsigned int str_len = rb->strlen(string);
unsigned int sfx_len = rb->strlen(suffix);
if (str_len < sfx_len)
return false;
return (rb->strncmp(string + str_len - sfx_len, suffix, sfx_len) == 0);
}
enum plugin_status plugin_start(const void* void_parameter)
{
bool leave_loop;
/* This is a viewer, so a parameter must have been specified */
if (void_parameter == NULL) {
rb->splash(HZ*2, "No parameter specified!");
return PLUGIN_ERROR;
}
link_filename = (char*)void_parameter;
user_file = (rb->strcmp(link_filename, SHORTCUTS_FILENAME) != 0);
allocate_memory(&memory_buf, &memory_bufsize);
if (!load_sc_file(&sc_file, link_filename, true,
memory_buf, memory_bufsize)) {
DEBUGF("Could not load %s\n", link_filename);
return PLUGIN_ERROR;
}
if (sc_file.entry_cnt==0) {
rb->splash(HZ*2, "No shortcuts in the file!");
return PLUGIN_OK;
} else if ((sc_file.entry_cnt==1) && user_file) {
/* if there's only one entry in the user .link file,
* go straight to it without displaying the menu
* thus allowing 'quick links' */
goto_entry(sc_file.entries[0].path);
return PLUGIN_OK;
}
do {
/* Display a menu to choose between the entries */
leave_loop = list_sc(!user_file);
} while (!leave_loop);
return usb_connected ? PLUGIN_USB_CONNECTED : PLUGIN_OK;
}
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