/*
* This file is part of DisOrder
- * Copyright (C) 2008 Richard Kettlewell
+ * Copyright (C) 2008, 2009 Richard Kettlewell
*
* 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
* USA
*/
/** @file disobedience/playlists.c
- * @brief Playlist for Disobedience
+ * @brief Playlist support for Disobedience
+ *
+ * The playlists management window contains:
+ * - the playlist picker (a list of all playlists) TODO should be a tree!
+ * - an add button
+ * - a delete button
+ * - the playlist editor (a d+d-capable view of the currently picked playlist)
+ * - a close button TODO
+ *
+ * This file also maintains the playlist menu, allowing playlists to be
+ * activated from the main window's menu.
+ *
+ * Internally we maintain the playlist list, which is just the current list of
+ * playlists. Changes to this are reflected in the playlist menu and the
+ * playlist picker.
*
*/
#include "disobedience.h"
+#include "queue-generic.h"
+#include "popup.h"
+#include "validity.h"
+
+static void playlist_list_received_playlists(void *v,
+ const char *err,
+ int nvec, char **vec);
+static void playlist_editor_fill(const char *event,
+ void *eventdata,
+ void *callbackdata);
+static int playlist_playall_sensitive(void *extra);
+static void playlist_playall_activate(GtkMenuItem *menuitem,
+ gpointer user_data);
+static int playlist_remove_sensitive(void *extra) ;
+static void playlist_remove_activate(GtkMenuItem *menuitem,
+ gpointer user_data);
+static void playlist_new_locked(void *v, const char *err);
+static void playlist_new_retrieved(void *v, const char *err,
+ int nvec,
+ char **vec);
+static void playlist_new_created(void *v, const char *err);
+static void playlist_new_unlocked(void *v, const char *err);
+static void playlist_new_entry_edited(GtkEditable *editable,
+ gpointer user_data);
+static void playlist_new_button_toggled(GtkToggleButton *tb,
+ gpointer userdata);
+static void playlist_new_changed(const char *event,
+ void *eventdata,
+ void *callbackdata);
+static const char *playlist_new_valid(void);
+static void playlist_new_details(char **namep,
+ char **fullnamep,
+ gboolean *sharedp,
+ gboolean *publicp,
+ gboolean *privatep);
+static void playlist_new_ok(GtkButton *button,
+ gpointer userdata);
+static void playlist_new_cancel(GtkButton *button,
+ gpointer userdata);
+static void playlists_editor_received_tracks(void *v,
+ const char *err,
+ int nvec, char **vec);
+static void playlist_window_destroyed(GtkWidget *widget,
+ GtkWidget **widget_pointer);
+static gboolean playlist_window_keypress(GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data);
+static int playlistcmp(const void *ap, const void *bp);
+static void playlist_modify_locked(void *v, const char *err);
+void playlist_modify_retrieved(void *v, const char *err,
+ int nvec,
+ char **vec);
+static void playlist_modify_updated(void *v, const char *err);
+static void playlist_modify_unlocked(void *v, const char *err);
+static void playlist_drop(struct queuelike *ql,
+ int ntracks,
+ char **tracks, char **ids,
+ struct queue_entry *after_me);
+struct playlist_modify_data;
+static void playlist_drop_modify(struct playlist_modify_data *mod,
+ int nvec, char **vec);
+static void playlist_remove_modify(struct playlist_modify_data *mod,
+ int nvec, char **vec);
+static gboolean playlist_new_keypress(GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data);
+static gboolean playlist_picker_keypress(GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data);
+static void playlist_editor_button_toggled(GtkToggleButton *tb,
+ gpointer userdata);
+static void playlist_editor_set_buttons(const char *event,
+ void *eventdata,
+ void *callbackdata);
+static void playlist_editor_got_share(void *v,
+ const char *err,
+ const char *value);
+static void playlist_editor_share_set(void *v, const char *err);
+static void playlist_picker_update_section(const char *title, const char *key,
+ int start, int end);
+static gboolean playlist_picker_find(GtkTreeIter *parent,
+ const char *title, const char *key,
+ GtkTreeIter iter[1],
+ gboolean create);
+static void playlist_picker_delete_obsolete(GtkTreeIter parent[1],
+ char **exists,
+ int nexists);
+static gboolean playlist_picker_button(GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer user_data);
+static gboolean playlist_editor_keypress(GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data);
+static void playlist_editor_ok(GtkButton *button, gpointer userdata);
+static void playlist_editor_help(GtkButton *button, gpointer userdata);
+
+/** @brief Playlist editing window */
+static GtkWidget *playlist_window;
-static void playlists_updated(void *v,
- const char *err,
- int nvec, char **vec);
+/** @brief Columns for the playlist editor */
+static const struct queue_column playlist_columns[] = {
+ { "Artist", column_namepart, "artist", COL_EXPAND|COL_ELLIPSIZE },
+ { "Album", column_namepart, "album", COL_EXPAND|COL_ELLIPSIZE },
+ { "Title", column_namepart, "title", COL_EXPAND|COL_ELLIPSIZE },
+};
+
+/** @brief Pop-up menu for playlist editor
+ *
+ * Status:
+ * - track properties works but, bizarrely, raises the main window
+ * - play track works
+ * - play playlist works
+ * - select/deselect all work
+ */
+static struct menuitem playlist_menuitems[] = {
+ { "Track properties", GTK_STOCK_PROPERTIES, ql_properties_activate, ql_properties_sensitive, 0, 0 },
+ { "Play track", GTK_STOCK_MEDIA_PLAY, ql_play_activate, ql_play_sensitive, 0, 0 },
+ { "Play playlist", NULL, playlist_playall_activate, playlist_playall_sensitive, 0, 0 },
+ { "Remove track from playlist", GTK_STOCK_DELETE, playlist_remove_activate, playlist_remove_sensitive, 0, 0 },
+ { "Select all tracks", GTK_STOCK_SELECT_ALL, ql_selectall_activate, ql_selectall_sensitive, 0, 0 },
+ { "Deselect all tracks", NULL, ql_selectnone_activate, ql_selectnone_sensitive, 0, 0 },
+};
+
+static const GtkTargetEntry playlist_targets[] = {
+ {
+ PLAYLIST_TRACKS, /* drag type */
+ GTK_TARGET_SAME_WIDGET, /* rearrangement within a widget */
+ PLAYLIST_TRACKS_ID /* ID value */
+ },
+ {
+ PLAYABLE_TRACKS, /* drag type */
+ GTK_TARGET_SAME_APP|GTK_TARGET_OTHER_WIDGET, /* copying between widgets */
+ PLAYABLE_TRACKS_ID, /* ID value */
+ },
+ {
+ .target = NULL
+ }
+};
+
+/** @brief Queuelike for editing a playlist */
+static struct queuelike ql_playlist = {
+ .name = "playlist",
+ .columns = playlist_columns,
+ .ncolumns = sizeof playlist_columns / sizeof *playlist_columns,
+ .menuitems = playlist_menuitems,
+ .nmenuitems = sizeof playlist_menuitems / sizeof *playlist_menuitems,
+ .drop = playlist_drop,
+ .drag_source_targets = playlist_targets,
+ .drag_source_actions = GDK_ACTION_MOVE|GDK_ACTION_COPY,
+ .drag_dest_targets = playlist_targets,
+ .drag_dest_actions = GDK_ACTION_MOVE|GDK_ACTION_COPY,
+};
+
+/* Maintaining the list of playlists ---------------------------------------- */
/** @brief Current list of playlists or NULL */
char **playlists;
/** @brief Count of playlists */
int nplaylists;
-/** @brief Schedule an update to the list of playlists */
-static void playlists_update(const char attribute((unused)) *event,
- void attribute((unused)) *eventdata,
- void attribute((unused)) *callbackdata) {
- disorder_eclient_playlists(client, playlists_updated, 0);
+/** @brief Schedule an update to the list of playlists
+ *
+ * Called periodically and when a playlist is created or deleted.
+ */
+static void playlist_list_update(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
+ disorder_eclient_playlists(client, playlist_list_received_playlists, 0);
+}
+
+/** @brief Called with a new list of playlists */
+static void playlist_list_received_playlists(void attribute((unused)) *v,
+ const char *err,
+ int nvec, char **vec) {
+ if(err) {
+ playlists = 0;
+ nplaylists = -1;
+ /* Probably means server does not support playlists */
+ } else {
+ playlists = vec;
+ nplaylists = nvec;
+ qsort(playlists, nplaylists, sizeof (char *), playlistcmp);
+ }
+ /* Tell our consumers */
+ event_raise("playlists-updated", 0);
}
/** @brief qsort() callback for playlist name comparison */
return strcmp(a, b);
}
-/** @brief Called with a new list of playlists */
-static void playlists_updated(void attribute((unused)) *v,
- const char *err,
- int nvec, char **vec) {
+/* Playlists menu ----------------------------------------------------------- */
+
+static void playlist_menu_playing(void attribute((unused)) *v,
+ const char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+}
+
+/** @brief Play received playlist contents
+ *
+ * Passed as a completion callback by menu_activate_playlist().
+ */
+static void playlist_menu_received_content(void attribute((unused)) *v,
+ const char *err,
+ int nvec, char **vec) {
if(err) {
- playlists = 0;
- nplaylists = -1;
- /* Probably means server does not support playlists */
- } else {
- playlists = vec;
- nplaylists = nvec;
- qsort(playlists, nplaylists, sizeof (char *), playlistcmp);
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ return;
}
- /* Tell our consumers */
- event_raise("playlists-updated", 0);
+ for(int n = 0; n < nvec; ++n)
+ disorder_eclient_play(client, vec[n], playlist_menu_playing, NULL);
}
-/** @brief Called to activate a playlist */
-static void menu_activate_playlist(GtkMenuItem *menuitem,
+/** @brief Called to activate a playlist
+ *
+ * Called when the menu item for a playlist is clicked.
+ */
+static void playlist_menu_activate(GtkMenuItem *menuitem,
gpointer attribute((unused)) user_data) {
GtkLabel *label = GTK_LABEL(GTK_BIN(menuitem)->child);
const char *playlist = gtk_label_get_text(label);
- fprintf(stderr, "activate playlist %s\n", playlist); /* TODO */
+ disorder_eclient_playlist_get(client, playlist_menu_received_content,
+ playlist, NULL);
}
-/** @brief Called when the playlists change */
-static void menu_playlists_changed(const char attribute((unused)) *event,
- void attribute((unused)) *eventdata,
- void attribute((unused)) *callbackdata) {
+/** @brief Called when the playlists change
+ *
+ * Naively refills the menu. The results might be unsettling if the menu is
+ * currently open, but this is hopefuly fairly rare.
+ */
+static void playlist_menu_changed(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
if(!playlists_menu)
return; /* OMG too soon */
GtkMenuShell *menu = GTK_MENU_SHELL(playlists_menu);
- /* TODO: we could be more sophisticated and only insert/remove widgets as
- * needed. For now that's too much effort. */
while(menu->children)
gtk_container_remove(GTK_CONTAINER(menu), GTK_WIDGET(menu->children->data));
/* NB nplaylists can be -1 as well as 0 */
for(int n = 0; n < nplaylists; ++n) {
GtkWidget *w = gtk_menu_item_new_with_label(playlists[n]);
- g_signal_connect(w, "activate", G_CALLBACK(menu_activate_playlist), 0);
+ g_signal_connect(w, "activate", G_CALLBACK(playlist_menu_activate), 0);
gtk_widget_show(w);
gtk_menu_shell_append(menu, w);
}
- gtk_widget_set_sensitive(playlists_widget,
+ gtk_widget_set_sensitive(menu_playlists_widget,
nplaylists > 0);
- gtk_widget_set_sensitive(editplaylists_widget,
+ gtk_widget_set_sensitive(menu_editplaylists_widget,
nplaylists >= 0);
}
- void edit_playlists(gpointer attribute((unused)) callback_data,
- guint attribute((unused)) callback_action,
- GtkWidget attribute((unused)) *menu_item) {
- fprintf(stderr, "edit playlists\n"); /* TODO */
+/* Popup to create a new playlist ------------------------------------------- */
+
+/** @brief New-playlist popup */
+static GtkWidget *playlist_new_window;
+
+/** @brief Text entry in new-playlist popup */
+static GtkWidget *playlist_new_entry;
+
+/** @brief Label for displaying feedback on what's wrong */
+static GtkWidget *playlist_new_info;
+
+/** @brief "Shared" radio button */
+static GtkWidget *playlist_new_shared;
+
+/** @brief "Public" radio button */
+static GtkWidget *playlist_new_public;
+
+/** @brief "Private" radio button */
+static GtkWidget *playlist_new_private;
+
+/** @brief Buttons for new-playlist popup */
+static struct button playlist_new_buttons[] = {
+ {
+ .stock = GTK_STOCK_OK,
+ .clicked = playlist_new_ok,
+ .tip = "Create new playlist"
+ },
+ {
+ .stock = GTK_STOCK_CANCEL,
+ .clicked = playlist_new_cancel,
+ .tip = "Do not create new playlist"
+ }
+};
+#define NPLAYLIST_NEW_BUTTONS (sizeof playlist_new_buttons / sizeof *playlist_new_buttons)
+
+/** @brief Pop up a new window to enter the playlist name and details */
+static void playlist_new_playlist(void) {
+ assert(playlist_new_window == NULL);
+ playlist_new_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+ g_signal_connect(playlist_new_window, "destroy",
+ G_CALLBACK(gtk_widget_destroyed), &playlist_new_window);
+ gtk_window_set_title(GTK_WINDOW(playlist_new_window), "Create new playlist");
+ /* Window will be modal, suppressing access to other windows */
+ gtk_window_set_modal(GTK_WINDOW(playlist_new_window), TRUE);
+ gtk_window_set_transient_for(GTK_WINDOW(playlist_new_window),
+ GTK_WINDOW(playlist_window));
+
+ /* Window contents will use a table (grid) layout */
+ GtkWidget *table = gtk_table_new(3, 3, FALSE/*!homogeneous*/);
+
+ /* First row: playlist name */
+ gtk_table_attach_defaults(GTK_TABLE(table),
+ gtk_label_new("Playlist name"),
+ 0, 1, 0, 1);
+ playlist_new_entry = gtk_entry_new();
+ g_signal_connect(playlist_new_entry, "changed",
+ G_CALLBACK(playlist_new_entry_edited), NULL);
+ gtk_table_attach_defaults(GTK_TABLE(table),
+ playlist_new_entry,
+ 1, 3, 0, 1);
+
+ /* Second row: radio buttons to choose type */
+ playlist_new_shared = gtk_radio_button_new_with_label(NULL, "shared");
+ playlist_new_public
+ = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_new_shared),
+ "public");
+ playlist_new_private
+ = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_new_shared),
+ "private");
+ g_signal_connect(playlist_new_shared, "toggled",
+ G_CALLBACK(playlist_new_button_toggled), NULL);
+ g_signal_connect(playlist_new_public, "toggled",
+ G_CALLBACK(playlist_new_button_toggled), NULL);
+ g_signal_connect(playlist_new_private, "toggled",
+ G_CALLBACK(playlist_new_button_toggled), NULL);
+ gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_shared, 0, 1, 1, 2);
+ gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_public, 1, 2, 1, 2);
+ gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_private, 2, 3, 1, 2);
+
+ /* Third row: info bar saying why not */
+ playlist_new_info = gtk_label_new("");
+ gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_info,
+ 0, 3, 2, 3);
+
+ /* Fourth row: ok/cancel buttons */
+ GtkWidget *hbox = create_buttons_box(playlist_new_buttons,
+ NPLAYLIST_NEW_BUTTONS,
+ gtk_hbox_new(FALSE, 0));
+ gtk_table_attach_defaults(GTK_TABLE(table), hbox, 0, 3, 3, 4);
+
+ gtk_container_add(GTK_CONTAINER(playlist_new_window),
+ frame_widget(table, NULL));
+
+ /* Set initial state of OK button */
+ playlist_new_changed(0,0,0);
+
+ g_signal_connect(playlist_new_window, "key-press-event",
+ G_CALLBACK(playlist_new_keypress), 0);
+
+ /* Display the window */
+ gtk_widget_show_all(playlist_new_window);
+}
+
+/** @brief Keypress handler */
+static gboolean playlist_new_keypress(GtkWidget attribute((unused)) *widget,
+ GdkEventKey *event,
+ gpointer attribute((unused)) user_data) {
+ if(event->state)
+ return FALSE;
+ switch(event->keyval) {
+ case GDK_Return:
+ playlist_new_ok(NULL, NULL);
+ return TRUE;
+ case GDK_Escape:
+ gtk_widget_destroy(playlist_new_window);
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+/** @brief Called when 'ok' is clicked in new-playlist popup */
+static void playlist_new_ok(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ if(playlist_new_valid())
+ return;
+ gboolean shared, public, private;
+ char *name, *fullname;
+ playlist_new_details(&name, &fullname, &shared, &public, &private);
+
+ /* We need to:
+ * - lock the playlist
+ * - check it doesn't exist
+ * - set sharing (which will create it empty
+ * - unlock it
+ *
+ * TODO we should freeze the window while this is going on to stop a second
+ * click.
+ */
+ disorder_eclient_playlist_lock(client, playlist_new_locked, fullname,
+ fullname);
+}
+
+/** @brief Called when the proposed new playlist has been locked */
+static void playlist_new_locked(void *v, const char *err) {
+ char *fullname = v;
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ return;
+ }
+ disorder_eclient_playlist_get(client, playlist_new_retrieved,
+ fullname, fullname);
+}
+
+/** @brief Called when the proposed new playlist's contents have been retrieved
+ *
+ * ...or rather, normally, when it's been reported that it does not exist.
+ */
+static void playlist_new_retrieved(void *v, const char *err,
+ int nvec,
+ char attribute((unused)) **vec) {
+ char *fullname = v;
+ if(!err && nvec != -1)
+ /* A rare case but not in principle impossible */
+ err = "A playlist with that name already exists.";
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ disorder_eclient_playlist_unlock(client, playlist_new_unlocked, fullname);
+ return;
+ }
+ gboolean shared, public, private;
+ playlist_new_details(0, 0, &shared, &public, &private);
+ disorder_eclient_playlist_set_share(client, playlist_new_created, fullname,
+ public ? "public"
+ : private ? "private"
+ : "shared",
+ fullname);
+}
+
+/** @brief Called when the new playlist has been created */
+static void playlist_new_created(void attribute((unused)) *v, const char *err) {
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ return;
+ }
+ disorder_eclient_playlist_unlock(client, playlist_new_unlocked, NULL);
+ // TODO arrange for the new playlist to be selected
+}
+
+/** @brief Called when the newly created playlist has unlocked */
+static void playlist_new_unlocked(void attribute((unused)) *v, const char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ /* Pop down the creation window */
+ gtk_widget_destroy(playlist_new_window);
+}
+
+/** @brief Called when 'cancel' is clicked in new-playlist popup */
+static void playlist_new_cancel(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ gtk_widget_destroy(playlist_new_window);
+}
+
+/** @brief Called when some radio button in the new-playlist popup changes */
+static void playlist_new_button_toggled(GtkToggleButton attribute((unused)) *tb,
+ gpointer attribute((unused)) userdata) {
+ playlist_new_changed(0,0,0);
+}
+
+/** @brief Called when the text entry field in the new-playlist popup changes */
+static void playlist_new_entry_edited(GtkEditable attribute((unused)) *editable,
+ gpointer attribute((unused)) user_data) {
+ playlist_new_changed(0,0,0);
+}
+
+/** @brief Called to update new playlist window state
+ *
+ * This is called whenever one the text entry or radio buttons changed, and
+ * also when the set of known playlists changes. It determines whether the new
+ * playlist would be creatable and sets the sensitivity of the OK button
+ * and info display accordingly.
+ */
+static void playlist_new_changed(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
+ if(!playlist_new_window)
+ return;
+ const char *reason = playlist_new_valid();
+ gtk_widget_set_sensitive(playlist_new_buttons[0].widget,
+ !reason);
+ gtk_label_set_text(GTK_LABEL(playlist_new_info), reason);
+}
+
+/** @brief Test whether the new-playlist window settings are valid
+ * @return NULL on success or an error string if not
+ */
+static const char *playlist_new_valid(void) {
+ gboolean shared, public, private;
+ char *name, *fullname;
+ playlist_new_details(&name, &fullname, &shared, &public, &private);
+ if(!(shared || public || private))
+ return "No type set.";
+ if(!*name)
+ return "";
+ /* See if the result is valid */
+ if(!valid_username(name)
+ || playlist_parse_name(fullname, NULL, NULL))
+ return "Not a valid playlist name.";
+ /* See if the result clashes with an existing name. This is not a perfect
+ * check, the playlist might be created after this point but before we get a
+ * chance to disable the "OK" button. However when we try to create the
+ * playlist we will first try to retrieve it, with a lock held, so we
+ * shouldn't end up overwriting anything. */
+ for(int n = 0; n < nplaylists; ++n)
+ if(!strcmp(playlists[n], fullname)) {
+ if(shared)
+ return "A shared playlist with that name already exists.";
+ else
+ return "You already have a playlist with that name.";
+ }
+ /* As far as we can tell creation would work */
+ return NULL;
+}
+
+/** @brief Get entered new-playlist details
+ * @param namep Where to store entered name (or NULL)
+ * @param fullnamep Where to store computed full name (or NULL)
+ * @param sharep Where to store 'shared' flag (or NULL)
+ * @param publicp Where to store 'public' flag (or NULL)
+ * @param privatep Where to store 'private' flag (or NULL)
+ */
+static void playlist_new_details(char **namep,
+ char **fullnamep,
+ gboolean *sharedp,
+ gboolean *publicp,
+ gboolean *privatep) {
+ gboolean shared, public, private;
+ g_object_get(playlist_new_shared, "active", &shared, (char *)NULL);
+ g_object_get(playlist_new_public, "active", &public, (char *)NULL);
+ g_object_get(playlist_new_private, "active", &private, (char *)NULL);
+ char *gname = gtk_editable_get_chars(GTK_EDITABLE(playlist_new_entry),
+ 0, -1); /* name owned by calle */
+ char *name = xstrdup(gname);
+ g_free(gname);
+ if(sharedp) *sharedp = shared;
+ if(publicp) *publicp = public;
+ if(privatep) *privatep = private;
+ if(namep) *namep = name;
+ if(fullnamep) {
+ if(*sharedp) *fullnamep = *namep;
+ else byte_xasprintf(fullnamep, "%s.%s", config->username, name);
+ }
+}
+
+/* Playlist picker ---------------------------------------------------------- */
+
+/** @brief Delete button */
+static GtkWidget *playlist_picker_delete_button;
+
+/** @brief Tree model for list of playlists
+ *
+ * This has two columns:
+ * - column 0 will be the display name
+ * - column 1 will be the sort key/playlist name (and will not be displayed)
+ */
+static GtkTreeStore *playlist_picker_list;
+
+/** @brief Selection for list of playlists */
+static GtkTreeSelection *playlist_picker_selection;
+
+/** @brief Currently selected playlist */
+static const char *playlist_picker_selected;
+
+/** @brief (Re-)populate the playlist picker tree model */
+static void playlist_picker_fill(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
+ if(!playlist_window)
+ return;
+ if(!playlist_picker_list)
+ playlist_picker_list = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
+ /* We will accumulate a list of all the sections that exist */
+ char **sections = xcalloc(nplaylists, sizeof (char *));
+ int nsections = 0;
+ /* Make sure shared playlists are there */
+ int start = 0, end;
+ for(end = start; end < nplaylists && !strchr(playlists[end], '.'); ++end)
+ ;
+ if(start != end) {
+ playlist_picker_update_section("Shared playlists", "",
+ start, end);
+ sections[nsections++] = (char *)"";
+ }
+ /* Make sure owned playlists are there */
+ while((start = end) < nplaylists) {
+ const int nl = strchr(playlists[start], '.') - playlists[start];
+ char *name = xstrndup(playlists[start], nl);
+ for(end = start;
+ end < nplaylists
+ && playlists[end][nl] == '.'
+ && !strncmp(playlists[start], playlists[end], nl);
+ ++end)
+ ;
+ playlist_picker_update_section(name, name, start, end);
+ sections[nsections++] = name;
+ }
+ /* Delete obsolete sections */
+ playlist_picker_delete_obsolete(NULL, sections, nsections);
+}
+
+/** @brief Update a section in the picker tree model
+ * @param section Section name
+ * @param start First entry in @ref playlists
+ * @param end Past last entry in @ref playlists
+ */
+static void playlist_picker_update_section(const char *title, const char *key,
+ int start, int end) {
+ /* Find the section, creating it if necessary */
+ GtkTreeIter section_iter[1];
+ playlist_picker_find(NULL, title, key, section_iter, TRUE);
+ /* Add missing rows */
+ for(int n = start; n < end; ++n) {
+ GtkTreeIter child[1];
+ char *name;
+ if((name = strchr(playlists[n], '.')))
+ ++name;
+ else
+ name = playlists[n];
+ playlist_picker_find(section_iter,
+ name, playlists[n],
+ child,
+ TRUE);
+ }
+ /* Delete anything that shouldn't exist. */
+ playlist_picker_delete_obsolete(section_iter, playlists + start, end - start);
+}
+
+/** @brief Find and maybe create a row in the picker tree model
+ * @param parent Parent iterator (or NULL for top level)
+ * @param title Display name of section
+ * @param key Key to search for
+ * @param iter Iterator to point at key
+ * @param create If TRUE, key will be created if it doesn't exist
+ * @param compare Row comparison function
+ * @return TRUE if key exists else FALSE
+ *
+ * If the @p key exists then @p iter will point to it and TRUE will be
+ * returned.
+ *
+ * If the @p key does not exist and @p create is TRUE then it will be created.
+ * @p iter wil point to it and TRUE will be returned.
+ *
+ * If the @p key does not exist and @p create is FALSE then FALSE will be
+ * returned.
+ */
+static gboolean playlist_picker_find(GtkTreeIter *parent,
+ const char *title,
+ const char *key,
+ GtkTreeIter iter[1],
+ gboolean create) {
+ gchar *candidate;
+ GtkTreeIter next[1];
+ gboolean it;
+ int row = 0;
+
+ it = gtk_tree_model_iter_children(GTK_TREE_MODEL(playlist_picker_list),
+ next,
+ parent);
+ while(it) {
+ /* Find the value at row 'next' */
+ gtk_tree_model_get(GTK_TREE_MODEL(playlist_picker_list),
+ next,
+ 1, &candidate,
+ -1);
+ /* See how it compares with @p key */
+ int c = strcmp(key, candidate);
+ g_free(candidate);
+ if(!c) {
+ *iter = *next;
+ return TRUE; /* we found our key */
+ }
+ if(c < 0) {
+ /* @p key belongs before row 'next' */
+ if(create) {
+ gtk_tree_store_insert_with_values(playlist_picker_list,
+ iter,
+ parent,
+ row, /* insert here */
+ 0, title, 1, key, -1);
+ return TRUE;
+ } else
+ return FALSE;
+ ++row;
+ }
+ it = gtk_tree_model_iter_next(GTK_TREE_MODEL(playlist_picker_list), next);
+ }
+ /* We have reached the end and not found a row that should be later than @p
+ * key. */
+ if(create) {
+ gtk_tree_store_insert_with_values(playlist_picker_list,
+ iter,
+ parent,
+ INT_MAX, /* insert at end */
+ 0, title, 1, key, -1);
+ return TRUE;
+ } else
+ return FALSE;
+}
+
+/** @brief Delete obsolete rows
+ * @param parent Parent or NULL
+ * @param exists List of rows that should exist (by key)
+ * @param nexists Length of @p exists
+ */
+static void playlist_picker_delete_obsolete(GtkTreeIter parent[1],
+ char **exists,
+ int nexists) {
+ /* Delete anything that shouldn't exist. */
+ GtkTreeIter iter[1];
+ gboolean it = gtk_tree_model_iter_children(GTK_TREE_MODEL(playlist_picker_list),
+ iter,
+ parent);
+ while(it) {
+ /* Find the value at row 'next' */
+ gchar *candidate;
+ gtk_tree_model_get(GTK_TREE_MODEL(playlist_picker_list),
+ iter,
+ 1, &candidate,
+ -1);
+ gboolean found = FALSE;
+ for(int n = 0; n < nexists; ++n)
+ if((found = !strcmp(candidate, exists[n])))
+ break;
+ if(!found)
+ it = gtk_tree_store_remove(playlist_picker_list, iter);
+ else
+ it = gtk_tree_model_iter_next(GTK_TREE_MODEL(playlist_picker_list),
+ iter);
+ g_free(candidate);
+ }
+}
+
+/** @brief Called when the selection might have changed */
+static void playlist_picker_selection_changed(GtkTreeSelection attribute((unused)) *treeselection,
+ gpointer attribute((unused)) user_data) {
+ GtkTreeIter iter;
+ char *gselected, *selected;
+
+ /* Identify the current selection */
+ if(gtk_tree_selection_get_selected(playlist_picker_selection, 0, &iter)
+ && gtk_tree_store_iter_depth(playlist_picker_list, &iter) > 0) {
+ gtk_tree_model_get(GTK_TREE_MODEL(playlist_picker_list), &iter,
+ 1, &gselected, -1);
+ selected = xstrdup(gselected);
+ g_free(gselected);
+ } else
+ selected = 0;
+ /* Set button sensitivity according to the new state */
+ int deletable = FALSE;
+ if(selected) {
+ if(strchr(selected, '.')) {
+ if(!strncmp(selected, config->username, strlen(config->username)))
+ deletable = TRUE;
+ } else
+ deletable = TRUE;
+ }
+ gtk_widget_set_sensitive(playlist_picker_delete_button, deletable);
+ /* Eliminate no-change cases */
+ if(!selected && !playlist_picker_selected)
+ return;
+ if(selected
+ && playlist_picker_selected
+ && !strcmp(selected, playlist_picker_selected))
+ return;
+ /* Record the new state */
+ playlist_picker_selected = selected;
+ /* Re-initalize the queue */
+ ql_new_queue(&ql_playlist, NULL);
+ /* Synthesize a playlist-modified to re-initialize the editor etc */
+ event_raise("playlist-modified", (void *)playlist_picker_selected);
+}
+
+/** @brief Called when the 'add' button is pressed */
+static void playlist_picker_add(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ /* Unselect whatever is selected TODO why?? */
+ gtk_tree_selection_unselect_all(playlist_picker_selection);
+ playlist_new_playlist();
+}
+
+/** @brief Called when playlist deletion completes */
+static void playlists_picker_delete_completed(void attribute((unused)) *v,
+ const char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+}
+
+/** @brief Called when the 'Delete' button is pressed */
+static void playlist_picker_delete(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ GtkWidget *yesno;
+ int res;
+
+ if(!playlist_picker_selected)
+ return;
+ yesno = gtk_message_dialog_new(GTK_WINDOW(playlist_window),
+ GTK_DIALOG_MODAL,
+ GTK_MESSAGE_QUESTION,
+ GTK_BUTTONS_YES_NO,
+ "Do you really want to delete playlist %s?"
+ " This action cannot be undone.",
+ playlist_picker_selected);
+ res = gtk_dialog_run(GTK_DIALOG(yesno));
+ gtk_widget_destroy(yesno);
+ if(res == GTK_RESPONSE_YES) {
+ disorder_eclient_playlist_delete(client,
+ playlists_picker_delete_completed,
+ playlist_picker_selected,
+ NULL);
+ }
+}
+
+/** @brief Table of buttons below the playlist list */
+static struct button playlist_picker_buttons[] = {
+ {
+ GTK_STOCK_ADD,
+ playlist_picker_add,
+ "Create a new playlist",
+ 0,
+ NULL,
+ },
+ {
+ GTK_STOCK_REMOVE,
+ playlist_picker_delete,
+ "Delete a playlist",
+ 0,
+ NULL,
+ },
+};
+#define NPLAYLIST_PICKER_BUTTONS (sizeof playlist_picker_buttons / sizeof *playlist_picker_buttons)
+
+/** @brief Create the list of playlists for the edit playlists window */
+static GtkWidget *playlist_picker_create(void) {
+ /* Create the list of playlist and populate it */
+ playlist_picker_fill(NULL, NULL, NULL);
+ /* Create the tree view */
+ GtkWidget *tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(playlist_picker_list));
+ /* ...and the renderers for it */
+ GtkCellRenderer *cr = gtk_cell_renderer_text_new();
+ GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes("Playlist",
+ cr,
+ "text", 0,
+ NULL);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(tree), col);
+ /* Get the selection for the view; set its mode; arrange for a callback when
+ * it changes */
+ playlist_picker_selected = NULL;
+ playlist_picker_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
+ gtk_tree_selection_set_mode(playlist_picker_selection, GTK_SELECTION_BROWSE);
+ g_signal_connect(playlist_picker_selection, "changed",
+ G_CALLBACK(playlist_picker_selection_changed), NULL);
+
+ /* Create the control buttons */
+ GtkWidget *buttons = create_buttons_box(playlist_picker_buttons,
+ NPLAYLIST_PICKER_BUTTONS,
+ gtk_hbox_new(FALSE, 1));
+ playlist_picker_delete_button = playlist_picker_buttons[1].widget;
+
+ playlist_picker_selection_changed(NULL, NULL);
+
+ /* Buttons live below the list */
+ GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
+ gtk_box_pack_start(GTK_BOX(vbox), scroll_widget(tree), TRUE/*expand*/, TRUE/*fill*/, 0);
+ gtk_box_pack_start(GTK_BOX(vbox), buttons, FALSE/*expand*/, FALSE, 0);
+
+ g_signal_connect(tree, "key-press-event",
+ G_CALLBACK(playlist_picker_keypress), 0);
+ g_signal_connect(tree, "button-press-event",
+ G_CALLBACK(playlist_picker_button), 0);
+
+ return vbox;
+}
+
+static gboolean playlist_picker_keypress(GtkWidget attribute((unused)) *widget,
+ GdkEventKey *event,
+ gpointer attribute((unused)) user_data) {
+ if(event->state)
+ return FALSE;
+ switch(event->keyval) {
+ case GDK_BackSpace:
+ case GDK_Delete:
+ playlist_picker_delete(NULL, NULL);
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+static void playlist_picker_select_activate(GtkMenuItem attribute((unused)) *item,
+ gpointer attribute((unused)) userdata) {
+ /* nothing */
+}
+
+static int playlist_picker_select_sensitive(void *extra) {
+ GtkTreeIter *iter = extra;
+ return gtk_tree_store_iter_depth(playlist_picker_list, iter) > 0;
+}
+
+static void playlist_picker_play_activate(GtkMenuItem attribute((unused)) *item,
+ gpointer attribute((unused)) userdata) {
+ /* Re-use the menu-based activation callback */
+ disorder_eclient_playlist_get(client, playlist_menu_received_content,
+ playlist_picker_selected, NULL);
+}
+
+static int playlist_picker_play_sensitive(void *extra) {
+ GtkTreeIter *iter = extra;
+ return gtk_tree_store_iter_depth(playlist_picker_list, iter) > 0;
+}
+
+static void playlist_picker_remove_activate(GtkMenuItem attribute((unused)) *item,
+ gpointer attribute((unused)) userdata) {
+ /* Re-use the 'Remove' button' */
+ playlist_picker_delete(NULL, NULL);
+}
+
+static int playlist_picker_remove_sensitive(void *extra) {
+ GtkTreeIter *iter = extra;
+ if(gtk_tree_store_iter_depth(playlist_picker_list, iter) > 0) {
+ if(strchr(playlist_picker_selected, '.')) {
+ if(!strncmp(playlist_picker_selected, config->username,
+ strlen(config->username)))
+ return TRUE;
+ } else
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/** @brief Pop-up menu for picker */
+static struct menuitem playlist_picker_menuitems[] = {
+ {
+ "Select playlist",
+ NULL,
+ playlist_picker_select_activate,
+ playlist_picker_select_sensitive,
+ 0,
+ 0
+ },
+ {
+ "Play playlist",
+ GTK_STOCK_MEDIA_PLAY,
+ playlist_picker_play_activate,
+ playlist_picker_play_sensitive,
+ 0,
+ 0
+ },
+ {
+ "Remove playlist",
+ GTK_STOCK_DELETE,
+ playlist_picker_remove_activate,
+ playlist_picker_remove_sensitive,
+ 0,
+ 0
+ },
+};
+
+static gboolean playlist_picker_button(GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer attribute((unused)) user_data) {
+ if(event->type == GDK_BUTTON_PRESS && event->button == 3) {
+ static GtkWidget *playlist_picker_menu;
+
+ /* Right click press pops up a menu */
+ ensure_selected(GTK_TREE_VIEW(widget), event);
+ /* Find the selected row */
+ GtkTreeIter iter[1];
+ if(!gtk_tree_selection_get_selected(playlist_picker_selection, 0, iter))
+ return TRUE;
+ popup(&playlist_picker_menu, event,
+ playlist_picker_menuitems,
+ sizeof playlist_picker_menuitems / sizeof *playlist_picker_menuitems,
+ iter);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static void playlist_picker_destroy(void) {
+ playlist_picker_delete_button = NULL;
+ g_object_unref(playlist_picker_list);
+ playlist_picker_list = NULL;
+ playlist_picker_selection = NULL;
+ playlist_picker_selected = NULL;
+}
+
+/* Playlist editor ---------------------------------------------------------- */
+
+static GtkWidget *playlist_editor_shared;
+static GtkWidget *playlist_editor_public;
+static GtkWidget *playlist_editor_private;
+static int playlist_editor_setting_buttons;
+
+/** @brief Buttons for the playlist window */
+static struct button playlist_editor_buttons[] = {
+ {
+ GTK_STOCK_OK,
+ playlist_editor_ok,
+ "Close window",
+ 0,
+ gtk_box_pack_end,
+ },
+ {
+ GTK_STOCK_HELP,
+ playlist_editor_help,
+ "Go to manual",
+ 0,
+ gtk_box_pack_end,
+ },
+};
+
+#define NPLAYLIST_EDITOR_BUTTONS (int)(sizeof playlist_editor_buttons / sizeof *playlist_editor_buttons)
+
+static GtkWidget *playlists_editor_create(void) {
+ assert(ql_playlist.view == NULL); /* better not be set up already */
+
+ GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
+ playlist_editor_shared = gtk_radio_button_new_with_label(NULL, "shared");
+ playlist_editor_public
+ = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_editor_shared),
+ "public");
+ playlist_editor_private
+ = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_editor_shared),
+ "private");
+ g_signal_connect(playlist_editor_public, "toggled",
+ G_CALLBACK(playlist_editor_button_toggled),
+ (void *)"public");
+ g_signal_connect(playlist_editor_private, "toggled",
+ G_CALLBACK(playlist_editor_button_toggled),
+ (void *)"private");
+ gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_shared,
+ FALSE/*expand*/, FALSE/*fill*/, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_public,
+ FALSE/*expand*/, FALSE/*fill*/, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_private,
+ FALSE/*expand*/, FALSE/*fill*/, 0);
+ playlist_editor_set_buttons(0,0,0);
+ create_buttons_box(playlist_editor_buttons,
+ NPLAYLIST_EDITOR_BUTTONS,
+ hbox);
+
+ GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
+ GtkWidget *view = init_queuelike(&ql_playlist);
+ gtk_box_pack_start(GTK_BOX(vbox), view,
+ TRUE/*expand*/, TRUE/*fill*/, 0);
+ gtk_box_pack_start(GTK_BOX(vbox), hbox,
+ FALSE/*expand*/, FALSE/*fill*/, 0);
+ g_signal_connect(view, "key-press-event",
+ G_CALLBACK(playlist_editor_keypress), 0);
+ return vbox;
+}
+
+static gboolean playlist_editor_keypress(GtkWidget attribute((unused)) *widget,
+ GdkEventKey *event,
+ gpointer attribute((unused)) user_data) {
+ if(event->state)
+ return FALSE;
+ switch(event->keyval) {
+ case GDK_BackSpace:
+ case GDK_Delete:
+ playlist_remove_activate(NULL, NULL);
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+/** @brief Called when the public/private buttons are set */
+static void playlist_editor_button_toggled(GtkToggleButton *tb,
+ gpointer userdata) {
+ const char *state = userdata;
+ if(!gtk_toggle_button_get_active(tb)
+ || !playlist_picker_selected
+ || playlist_editor_setting_buttons)
+ return;
+ disorder_eclient_playlist_set_share(client, playlist_editor_share_set,
+ playlist_picker_selected, state, NULL);
+}
+
+static void playlist_editor_share_set(void attribute((unused)) *v,
+ const attribute((unused)) char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+}
+
+/** @brief Set the editor button state and sensitivity */
+static void playlist_editor_set_buttons(const char attribute((unused)) *event,
+ void *eventdata,
+ void attribute((unused)) *callbackdata) {
+ /* If this event is for a non-selected playlist do nothing */
+ if(eventdata
+ && playlist_picker_selected
+ && strcmp(eventdata, playlist_picker_selected))
+ return;
+ if(playlist_picker_selected) {
+ if(strchr(playlist_picker_selected, '.'))
+ disorder_eclient_playlist_get_share(client,
+ playlist_editor_got_share,
+ playlist_picker_selected,
+ (void *)playlist_picker_selected);
+ else
+ playlist_editor_got_share((void *)playlist_picker_selected, NULL,
+ "shared");
+ } else
+ playlist_editor_got_share(NULL, NULL, NULL);
+}
+
+/** @brief Called with playlist sharing details */
+static void playlist_editor_got_share(void *v,
+ const char *err,
+ const char *value) {
+ const char *playlist = v;
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ value = NULL;
+ }
+ /* Set the currently active button */
+ ++playlist_editor_setting_buttons;
+ gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_shared),
+ value && !strcmp(value, "shared"));
+ gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_public),
+ value && !strcmp(value, "public"));
+ gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_private),
+ value && !strcmp(value, "private"));
+ /* Set button sensitivity */
+ gtk_widget_set_sensitive(playlist_editor_shared, FALSE);
+ int sensitive = (playlist
+ && strchr(playlist, '.')
+ && !strncmp(playlist, config->username,
+ strlen(config->username)));
+ gtk_widget_set_sensitive(playlist_editor_public, sensitive);
+ gtk_widget_set_sensitive(playlist_editor_private, sensitive);
+ --playlist_editor_setting_buttons;
+}
+
+/** @brief (Re-)populate the playlist tree model */
+static void playlist_editor_fill(const char attribute((unused)) *event,
+ void *eventdata,
+ void attribute((unused)) *callbackdata) {
+ const char *modified_playlist = eventdata;
+ if(!playlist_window)
+ return;
+ if(!playlist_picker_selected)
+ return;
+ if(!strcmp(playlist_picker_selected, modified_playlist))
+ disorder_eclient_playlist_get(client, playlists_editor_received_tracks,
+ playlist_picker_selected,
+ (void *)playlist_picker_selected);
+}
+
+/** @brief Called with new tracks for the playlist */
+static void playlists_editor_received_tracks(void *v,
+ const char *err,
+ int nvec, char **vec) {
+ const char *playlist = v;
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ return;
+ }
+ if(!playlist_picker_selected
+ || strcmp(playlist, playlist_picker_selected)) {
+ /* The tracks are for the wrong playlist - something must have changed
+ * while the fetch command was in flight. We just ignore this callback,
+ * the right answer will be requested and arrive in due course. */
+ return;
+ }
+ if(nvec == -1)
+ /* No such playlist, presumably we'll get a deleted event shortly */
+ return;
+ /* Translate the list of tracks into queue entries */
+ struct queue_entry *newq, **qq = &newq, *qprev = NULL;
+ hash *h = hash_new(sizeof(int));
+ for(int n = 0; n < nvec; ++n) {
+ struct queue_entry *q = xmalloc(sizeof *q);
+ q->prev = qprev;
+ q->track = vec[n];
+ /* Synthesize a unique ID so that the selection survives updates. Tracks
+ * can appear more than once in the queue so we can't use raw track names,
+ * so we add a serial number to the start. */
+ int *serialp = hash_find(h, vec[n]), serial = serialp ? *serialp : 0;
+ byte_xasprintf((char **)&q->id, "%d-%s", serial++, vec[n]);
+ hash_add(h, vec[n], &serial, HASH_INSERT_OR_REPLACE);
+ *qq = q;
+ qq = &q->next;
+ qprev = q;
+ }
+ *qq = NULL;
+ ql_new_queue(&ql_playlist, newq);
+}
+
+static void playlist_editor_ok(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ gtk_widget_destroy(playlist_window);
+}
+
+static void playlist_editor_help(GtkButton attribute((unused)) *button,
+ gpointer attribute((unused)) userdata) {
+ popup_help("playlists.html");
+}
+
+/* Playlist mutation -------------------------------------------------------- */
+
+/** @brief State structure for guarded playlist modification
+ *
+ * To safely move, insert or delete rows we must:
+ * - take a lock
+ * - fetch the playlist
+ * - verify it's not changed
+ * - update the playlist contents
+ * - store the playlist
+ * - release the lock
+ *
+ * The playlist_modify_ functions do just that.
+ *
+ * To kick things off create one of these and disorder_eclient_playlist_lock()
+ * with playlist_modify_locked() as its callback. @c modify will be called; it
+ * should disorder_eclient_playlist_set() to set the new state with
+ * playlist_modify_updated() as its callback.
+ */
+struct playlist_modify_data {
+ /** @brief Affected playlist */
+ const char *playlist;
+ /** @brief Modification function
+ * @param mod Pointer back to state structure
+ * @param ntracks Length of playlist
+ * @param tracks Tracks in playlist
+ */
+ void (*modify)(struct playlist_modify_data *mod,
+ int ntracks, char **tracks);
+
+ /** @brief Number of tracks dropped */
+ int ntracks;
+ /** @brief Track names dropped */
+ char **tracks;
+ /** @brief Track IDs dropped */
+ char **ids;
+ /** @brief Drop after this point */
+ struct queue_entry *after_me;
+};
+
+/** @brief Called with playlist locked
+ *
+ * This is the entry point for guarded modification ising @ref
+ * playlist_modify_data.
+ */
+static void playlist_modify_locked(void *v, const char *err) {
+ struct playlist_modify_data *mod = v;
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ return;
+ }
+ disorder_eclient_playlist_get(client, playlist_modify_retrieved,
+ mod->playlist, mod);
+}
+
+/** @brief Called with current playlist contents
+ * Checks that the playlist is still current and has not changed.
+ */
+void playlist_modify_retrieved(void *v, const char *err,
+ int nvec,
+ char **vec) {
+ struct playlist_modify_data *mod = v;
+ if(err) {
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
+ return;
+ }
+ if(nvec < 0
+ || !playlist_picker_selected
+ || strcmp(mod->playlist, playlist_picker_selected)) {
+ disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
+ return;
+ }
+ /* We check that the contents haven't changed. If they have we just abandon
+ * the operation. The user will have to try again. */
+ struct queue_entry *q;
+ int n;
+ for(n = 0, q = ql_playlist.q; q && n < nvec; ++n, q = q->next)
+ if(strcmp(q->track, vec[n]))
+ break;
+ if(n != nvec || q != NULL) {
+ disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
+ return;
+ }
+ mod->modify(mod, nvec, vec);
+}
+
+/** @brief Called when the playlist has been updated */
+static void playlist_modify_updated(void attribute((unused)) *v,
+ const char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+ disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
+}
+
+/** @brief Called when the playlist has been unlocked */
+static void playlist_modify_unlocked(void attribute((unused)) *v,
+ const char *err) {
+ if(err)
+ popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
+}
+
+/* Drop tracks into a playlist ---------------------------------------------- */
+
+static void playlist_drop(struct queuelike attribute((unused)) *ql,
+ int ntracks,
+ char **tracks, char **ids,
+ struct queue_entry *after_me) {
+ struct playlist_modify_data *mod = xmalloc(sizeof *mod);
+
+ mod->playlist = playlist_picker_selected;
+ mod->modify = playlist_drop_modify;
+ mod->ntracks = ntracks;
+ mod->tracks = tracks;
+ mod->ids = ids;
+ mod->after_me = after_me;
+ disorder_eclient_playlist_lock(client, playlist_modify_locked,
+ mod->playlist, mod);
+}
+
+/** @brief Return true if track @p i is in the moved set */
+static int playlist_drop_is_moved(struct playlist_modify_data *mod,
+ int i) {
+ struct queue_entry *q;
+
+ /* Find the q corresponding to i, so we can get the ID */
+ for(q = ql_playlist.q; i; q = q->next, --i)
+ ;
+ /* See if track i matches any of the moved set by ID */
+ for(int n = 0; n < mod->ntracks; ++n)
+ if(!strcmp(q->id, mod->ids[n]))
+ return 1;
+ return 0;
+}
+
+static void playlist_drop_modify(struct playlist_modify_data *mod,
+ int nvec, char **vec) {
+ char **newvec;
+ int nnewvec;
+
+ //fprintf(stderr, "\nplaylist_drop_modify\n");
+ /* after_me is the queue_entry to insert after, or NULL to insert at the
+ * beginning (including the case when the playlist is empty) */
+ //fprintf(stderr, "after_me = %s\n",
+ // mod->after_me ? mod->after_me->track : "NULL");
+ struct queue_entry *q = ql_playlist.q;
+ int ins = 0;
+ if(mod->after_me) {
+ ++ins;
+ while(q && q != mod->after_me) {
+ q = q->next;
+ ++ins;
+ }
+ }
+ /* Now ins is the index to insert at; equivalently, the row to insert before,
+ * and so equal to nvec to append. */
+#if 0
+ fprintf(stderr, "ins = %d = %s\n",
+ ins, ins < nvec ? vec[ins] : "NULL");
+ for(int n = 0; n < nvec; ++n)
+ fprintf(stderr, "%d: %s %s\n", n, n == ins ? "->" : " ", vec[n]);
+ fprintf(stderr, "nvec = %d\n", nvec);
+#endif
+ if(mod->ids) {
+ /* This is a rearrangement */
+ /* We have:
+ * - vec[], the current layout
+ * - ins, pointing into vec
+ * - mod->tracks[], a subset of vec[] which is to be moved
+ *
+ * ins is the insertion point BUT it is in terms of the whole
+ * array, i.e. before mod->tracks[] have been removed. The first
+ * step then is to remove everything in mod->tracks[] and adjust
+ * ins downwards as necessary.
+ */
+ /* First zero out anything that's moved */
+ int before_ins = 0;
+ for(int n = 0; n < nvec; ++n) {
+ if(playlist_drop_is_moved(mod, n)) {
+ vec[n] = NULL;
+ if(n < ins)
+ ++before_ins;
+ }
+ }
+ /* Now collapse down the array */
+ int i = 0;
+ for(int n = 0; n < nvec; ++n) {
+ if(vec[n])
+ vec[i++] = vec[n];
+ }
+ assert(i + mod->ntracks == nvec);
+ nvec = i;
+ /* Adjust the insertion point to take account of things moved from before
+ * it */
+ ins -= before_ins;
+ /* The effect is now the same as an insertion */
+ }
+ /* This is (now) an insertion */
+ nnewvec = nvec + mod->ntracks;
+ newvec = xcalloc(nnewvec, sizeof (char *));
+ memcpy(newvec, vec,
+ ins * sizeof (char *));
+ memcpy(newvec + ins, mod->tracks,
+ mod->ntracks * sizeof (char *));
+ memcpy(newvec + ins + mod->ntracks, vec + ins,
+ (nvec - ins) * sizeof (char *));
+ disorder_eclient_playlist_set(client, playlist_modify_updated, mod->playlist,
+ newvec, nnewvec, mod);
+}
+
+/* Playlist editor right-click menu ---------------------------------------- */
+
+/** @brief Called to determine whether the playlist is playable */
+static int playlist_playall_sensitive(void attribute((unused)) *extra) {
+ /* If there's no playlist obviously we can't play it */
+ if(!playlist_picker_selected)
+ return FALSE;
+ /* If it's empty we can't play it */
+ if(!ql_playlist.q)
+ return FALSE;
+ /* Otherwise we can */
+ return TRUE;
+}
+
+/** @brief Called to play the selected playlist */
+static void playlist_playall_activate(GtkMenuItem attribute((unused)) *menuitem,
+ gpointer attribute((unused)) user_data) {
+ if(!playlist_picker_selected)
+ return;
+ /* Re-use the menu-based activation callback */
+ disorder_eclient_playlist_get(client, playlist_menu_received_content,
+ playlist_picker_selected, NULL);
+}
+
+/** @brief Called to determine whether the playlist is playable */
+static int playlist_remove_sensitive(void attribute((unused)) *extra) {
+ /* If there's no playlist obviously we can't remove from it */
+ if(!playlist_picker_selected)
+ return FALSE;
+ /* If no tracks are selected we cannot remove them */
+ if(!gtk_tree_selection_count_selected_rows(ql_playlist.selection))
+ return FALSE;
+ /* We're good to go */
+ return TRUE;
+}
+
+/** @brief Called to remove the selected playlist */
+static void playlist_remove_activate(GtkMenuItem attribute((unused)) *menuitem,
+ gpointer attribute((unused)) user_data) {
+ if(!playlist_picker_selected)
+ return;
+ struct playlist_modify_data *mod = xmalloc(sizeof *mod);
+
+ mod->playlist = playlist_picker_selected;
+ mod->modify = playlist_remove_modify;
+ disorder_eclient_playlist_lock(client, playlist_modify_locked,
+ mod->playlist, mod);
+}
+
+static void playlist_remove_modify(struct playlist_modify_data *mod,
+ int attribute((unused)) nvec, char **vec) {
+ GtkTreeIter iter[1];
+ gboolean it = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql_playlist.store),
+ iter);
+ int n = 0, m = 0;
+ while(it) {
+ if(!gtk_tree_selection_iter_is_selected(ql_playlist.selection, iter))
+ vec[m++] = vec[n++];
+ else
+ n++;
+ it = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql_playlist.store), iter);
+ }
+ disorder_eclient_playlist_set(client, playlist_modify_updated, mod->playlist,
+ vec, m, mod);
+}
+
+/* Playlists window --------------------------------------------------------- */
+
+/** @brief Pop up the playlists window
+ *
+ * Called when the playlists menu item is selected
+ */
+void playlist_window_create(gpointer attribute((unused)) callback_data,
+ guint attribute((unused)) callback_action,
+ GtkWidget attribute((unused)) *menu_item) {
+ /* If the window already exists, raise it */
+ if(playlist_window) {
+ gtk_window_present(GTK_WINDOW(playlist_window));
+ return;
+ }
+ /* Create the window */
+ playlist_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+ gtk_widget_set_style(playlist_window, tool_style);
+ g_signal_connect(playlist_window, "destroy",
+ G_CALLBACK(playlist_window_destroyed), &playlist_window);
+ gtk_window_set_title(GTK_WINDOW(playlist_window), "Playlists Management");
+ /* TODO loads of this is very similar to (copied from!) users.c - can we
+ * de-dupe? */
+ /* Keyboard shortcuts */
+ g_signal_connect(playlist_window, "key-press-event",
+ G_CALLBACK(playlist_window_keypress), 0);
+ /* default size is too small */
+ gtk_window_set_default_size(GTK_WINDOW(playlist_window), 640, 320);
+
+ GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), playlist_picker_create(),
+ FALSE/*expand*/, FALSE, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(),
+ FALSE/*expand*/, FALSE, 2);
+ gtk_box_pack_start(GTK_BOX(hbox), playlists_editor_create(),
+ TRUE/*expand*/, TRUE/*fill*/, 0);
+
+ gtk_container_add(GTK_CONTAINER(playlist_window), frame_widget(hbox, NULL));
+ gtk_widget_show_all(playlist_window);
+}
+
+/** @brief Keypress handler */
+static gboolean playlist_window_keypress(GtkWidget attribute((unused)) *widget,
+ GdkEventKey *event,
+ gpointer attribute((unused)) user_data) {
+ if(event->state)
+ return FALSE;
+ switch(event->keyval) {
+ case GDK_Escape:
+ gtk_widget_destroy(playlist_window);
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+/** @brief Called when the playlist window is destroyed */
+static void playlist_window_destroyed(GtkWidget attribute((unused)) *widget,
+ GtkWidget **widget_pointer) {
+ destroy_queuelike(&ql_playlist);
+ playlist_picker_destroy();
+ *widget_pointer = NULL;
}
/** @brief Initialize playlist support */
void playlists_init(void) {
/* We re-get all playlists upon any change... */
- event_register("playlist-created", playlists_update, 0);
- event_register("playlist-modified", playlists_update, 0);
- event_register("playlist-deleted", playlists_update, 0);
+ event_register("playlist-created", playlist_list_update, 0);
+ event_register("playlist-deleted", playlist_list_update, 0);
/* ...and on reconnection */
- event_register("log-connected", playlists_update, 0);
+ event_register("log-connected", playlist_list_update, 0);
/* ...and from time to time */
- event_register("periodic-slow", playlists_update, 0);
+ event_register("periodic-slow", playlist_list_update, 0);
/* ...and at startup */
- event_register("playlists-updated", menu_playlists_changed, 0);
- playlists_update(0, 0, 0);
+ playlist_list_update(0, 0, 0);
+
+ /* Update the playlists menu when the set of playlists changes */
+ event_register("playlists-updated", playlist_menu_changed, 0);
+ /* Update the new-playlist OK button when the set of playlists changes */
+ event_register("playlists-updated", playlist_new_changed, 0);
+ /* Update the list of playlists in the edit window when the set changes */
+ event_register("playlists-updated", playlist_picker_fill, 0);
+ /* Update the displayed playlist when it is modified */
+ event_register("playlist-modified", playlist_editor_fill, 0);
+ /* Update the shared/public/etc buttons when a playlist is modified */
+ event_register("playlist-modified", playlist_editor_set_buttons, 0);
}
/*
~mdw / disorder / blobdiff