X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/fc36ecb7248f60d2dfc1736ccaeb93d57da57f01..c578205092337485cfcca4e677b49890bbf75098:/disobedience/playlists.c diff --git a/disobedience/playlists.c b/disobedience/playlists.c index c37f1a2..69c8ed7 100644 --- a/disobedience/playlists.c +++ b/disobedience/playlists.c @@ -20,13 +20,36 @@ /** @file disobedience/playlists.c * @brief Playlist for Disobedience * + * The playlists management window contains: + * - a list of all playlists + * - an add button + * - a delete button + * - a drag+drop capable view of the playlist + * - a close button */ #include "disobedience.h" +#if PLAYLISTS + static void playlists_updated(void *v, const char *err, int nvec, char **vec); +/** @brief Playlist editing window */ +static GtkWidget *playlists_window; + +/** @brief Tree model for list of playlists */ +static GtkListStore *playlists_list; + +/** @brief Selection for list of playlists */ +static GtkTreeSelection *playlists_selection; + +/** @brief Currently selected playlist */ +static const char *playlists_selected; + +/** @brief Delete button */ +static GtkWidget *playlists_delete_button; + /** @brief Current list of playlists or NULL */ char **playlists; @@ -83,6 +106,225 @@ static void playlists_updated(void attribute((unused)) *v, event_raise("playlists-updated", 0); } +/** @brief Called to activate a playlist */ +static void menu_activate_playlist(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 */ + /* We need to: + * - unlock any currently locked playlist + * - throw away the current editing widget + * - create a new editing widget + * - populate it + */ +} + +/** @brief Called when the playlists change */ +static void menu_playlists_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. The current logic trashes the selection which is not acceptable + * and interacts badly with one playlist being currently locked and + * edited. */ + 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); + gtk_widget_show(w); + gtk_menu_shell_append(menu, w); + } + gtk_widget_set_sensitive(playlists_widget, + nplaylists > 0); + gtk_widget_set_sensitive(editplaylists_widget, + nplaylists >= 0); +} + +/** @brief (Re-)populate the playlist tree model */ +static void playlists_fill(void) { + GtkTreeIter iter[1]; + + if(!playlists_list) + playlists_list = gtk_list_store_new(1, G_TYPE_STRING); + gtk_list_store_clear(playlists_list); + for(int n = 0; n < nplaylists; ++n) + gtk_list_store_insert_with_values(playlists_list, iter, n/*position*/, + 0, playlists[n], /* column 0 */ + -1); /* no more cols */ + // TODO reselect whatever was formerly selected if possible, if not then + // zap the contents view +} + +/** @brief Called when the selection might have changed */ +static void playlists_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(playlists_selection, 0, &iter)) { + gtk_tree_model_get(GTK_TREE_MODEL(playlists_list), &iter, + 0, &gselected, -1); + selected = xstrdup(gselected); + g_free(gselected); + } else + selected = 0; + /* Eliminate no-change cases */ + if(!selected && !playlists_selected) + return; + if(selected && playlists_selected && !strcmp(selected, playlists_selected)) + return; + /* There's been a change */ + playlists_selected = selected; + if(playlists_selected) { + fprintf(stderr, "playlists selection changed\n'"); /* TODO */ + gtk_widget_set_sensitive(playlists_delete_button, 1); + } else + gtk_widget_set_sensitive(playlists_delete_button, 0); +} + +/** @brief Called when the 'add' button is pressed */ +static void playlists_add(GtkButton attribute((unused)) *button, + gpointer attribute((unused)) userdata) { + /* Unselect whatever is selected */ + gtk_tree_selection_unselect_all(playlists_selection); + fprintf(stderr, "playlists_add\n");/* TODO */ + /* We need to pop up a window asking for: + * - the name for the playlist + * - whether it is to be a public, private or shared playlist + * Moreover we should keep track of the known playlists and grey out OK + * if the name is a clash (as well as if it's actually invalid). + */ +} + +/** @brief Called when the 'Delete' button is pressed */ +static void playlists_delete(GtkButton attribute((unused)) *button, + gpointer attribute((unused)) userdata) { + GtkWidget *yesno; + int res; + + if(!playlists_selected) + return; /* shouldn't happen */ + yesno = gtk_message_dialog_new(GTK_WINDOW(playlists_window), + GTK_DIALOG_MODAL, + GTK_MESSAGE_QUESTION, + GTK_BUTTONS_YES_NO, + "Do you really want to delete playlist %s?" + " This action cannot be undone.", + playlists_selected); + res = gtk_dialog_run(GTK_DIALOG(yesno)); + gtk_widget_destroy(yesno); + if(res == GTK_RESPONSE_YES) { + disorder_eclient_playlist_delete(client, + NULL/*playlists_delete_completed*/, + playlists_selected, + NULL); + } +} + +/** @brief Table of buttons below the playlist list */ +static struct button playlists_buttons[] = { + { + GTK_STOCK_ADD, + playlists_add, + "Create a new playlist", + 0 + }, + { + GTK_STOCK_REMOVE, + playlists_delete, + "Delete a playlist", + 0 + }, +}; +#define NPLAYLISTS_BUTTONS (sizeof playlists_buttons / sizeof *playlists_buttons) + +/** @brief Keypress handler */ +static gboolean playlists_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(playlists_window); + return TRUE; + default: + return FALSE; + } +} + +void edit_playlists(gpointer attribute((unused)) callback_data, + guint attribute((unused)) callback_action, + GtkWidget attribute((unused)) *menu_item) { + GtkWidget *tree, *hbox, *vbox, *buttons; + GtkCellRenderer *cr; + GtkTreeViewColumn *col; + + /* If the window already exists, raise it */ + if(playlists_window) { + gtk_window_present(GTK_WINDOW(playlists_window)); + return; + } + /* Create the window */ + playlists_window = gtk_window_new(GTK_WINDOW_TOPLEVEL); + gtk_widget_set_style(playlists_window, tool_style); + g_signal_connect(playlists_window, "destroy", + G_CALLBACK(gtk_widget_destroyed), &playlists_window); + gtk_window_set_title(GTK_WINDOW(playlists_window), "Playlists Management"); + /* TODO loads of this is very similar to (copied from!) users.c - can we + * de-dupe? */ + /* Keyboard shortcuts */ + g_signal_connect(playlists_window, "key-press-event", + G_CALLBACK(playlists_keypress), 0); + /* default size is too small */ + gtk_window_set_default_size(GTK_WINDOW(playlists_window), 240, 240); + /* Create the list of playlist and populate it */ + playlists_fill(); + /* Create the tree view */ + tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(playlists_list)); + /* ...and the renderers for it */ + cr = gtk_cell_renderer_text_new(); + 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 */ + playlists_selected = NULL; + playlists_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree)); + gtk_tree_selection_set_mode(playlists_selection, GTK_SELECTION_BROWSE); + g_signal_connect(playlists_selection, "changed", + G_CALLBACK(playlists_selection_changed), NULL); + + /* Create the control buttons */ + buttons = create_buttons_box(playlists_buttons, + NPLAYLISTS_BUTTONS, + gtk_hbox_new(FALSE, 1)); + playlists_delete_button = playlists_buttons[1].widget; + + /* Buttons live below the list */ + 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); + + hbox = gtk_hbox_new(FALSE, 0); + gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE/*expand*/, FALSE, 0); + gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(), FALSE/*expand*/, FALSE, 2); + // TODO something to edit the playlist in + //gtk_box_pack_start(GTK_BOX(hbox), vbox2, TRUE/*expand*/, TRUE/*fill*/, 0); + gtk_container_add(GTK_CONTAINER(playlists_window), frame_widget(hbox, NULL)); + gtk_widget_show_all(playlists_window); +} + /** @brief Initialize playlist support */ void playlists_init(void) { /* We re-get all playlists upon any change... */ @@ -94,9 +336,12 @@ void playlists_init(void) { /* ...and from time to time */ event_register("periodic-slow", playlists_update, 0); /* ...and at startup */ + event_register("playlists-updated", menu_playlists_changed, 0); playlists_update(0, 0, 0); } +#endif + /* Local Variables: c-basic-offset:2