chiark - git - mdw - disorder/blob - disobedience/globals.c

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2011 Richard Kettlewell
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/globals.c
  19  * @brief Track global preferences
  20  */
  21
  22 #include "disobedience.h"
  23
  24 static GtkWidget *globals_window;
  25 static void globals_close(GtkButton attribute((unused)) *button,
  26                          gpointer attribute((unused)) userdata);
  27
  28 static struct globals_row {
  29   const char *label;
  30   const char *pref;
  31   GtkWidget *entry;
  32 } globals_rows[] = {
  33   { "Required tags", "required-tags", NULL },
  34   { "Prohibited tags", "prohibited-tags", NULL },
  35   { "Plating", "playing", NULL },
  36   { "Random play", "random-play", NULL },
  37 };
  38 #define NGLOBALS (sizeof globals_rows / sizeof *globals_rows)
  39
  40 /** @brief Buttons for globals popup */
  41 static struct button globals_buttons[] = {
  42   {
  43     .stock = GTK_STOCK_CLOSE,
  44     .clicked = globals_close,
  45     .tip = "Close window",
  46     .pack = gtk_box_pack_end,
  47   },
  48 };
  49 #define NGLOBALS_BUTTONS (sizeof globals_buttons / sizeof *globals_buttons)
  50
  51 static void globals_close(GtkButton attribute((unused)) *button,
  52                          gpointer attribute((unused)) userdata) {
  53   gtk_widget_destroy(globals_window);
  54 }
  55
  56 /** @brief Called with the latest setting for a row */
  57 static void globals_get_completed(void *v, const char *err,
  58                                  const char *value) {
  59   if(err)
  60     popup_protocol_error(0, err);
  61   else if(globals_window) {
  62     struct globals_row *row = v;
  63     /* Identify unset and empty lists */
  64     if(!value)
  65       value = "";
  66     /* Skip trivial updates (we'll see one as a consequence of each
  67      * update we make...) */
  68     if(strcmp(gtk_entry_get_text(GTK_ENTRY(row->entry)), value))
  69       gtk_entry_set_text(GTK_ENTRY(row->entry), value);
  70   }
  71 }
  72
  73 /** @brief Retrieve the latest setting for @p row */
  74 static void globals_get(struct globals_row *row) {
  75   disorder_eclient_get_global(client, globals_get_completed, row->pref, row);
  76 }
  77
  78 /** @brief Called when the user changes the contents of some entry */
  79 static void globals_entry_changed(GtkEditable *editable, gpointer user_data) {
  80   struct globals_row *row = user_data;
  81   const char *new_value = gtk_entry_get_text(GTK_ENTRY(editable));
  82   if(*new_value)
  83     disorder_eclient_set_global(client, NULL, row->pref, new_value, row);
  84   else
  85     disorder_eclient_unset_global(client, NULL, row->pref, row);
  86 }
  87
  88 /** @brief Display the globals window */
  89 void popup_globals(void) {
  90   GtkWidget *label, *table, *hbox;
  91   /* Pop up the window if it already exists */
  92   if(globals_window) {
  93     gtk_window_present(GTK_WINDOW(globals_window));
  94     return;
  95   }
  96   /* Create the window */
  97   /* TODO loads of this is very similar to (copied from!) users.c - can we
  98    * de-dupe? */
  99   globals_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 100   gtk_widget_set_style(globals_window, tool_style);
 101   gtk_window_set_title(GTK_WINDOW(globals_window), "Globals");
 102   g_signal_connect(globals_window, "destroy",
 103                    G_CALLBACK(gtk_widget_destroyed), &globals_window);
 104   table = gtk_table_new(NGLOBALS + 1/*rows*/, 2/*cols*/, FALSE/*homogeneous*/);
 105   gtk_widget_set_style(table, tool_style);\
 106
 107   for(size_t n = 0; n < NGLOBALS; ++n) {
 108     label = gtk_label_new(globals_rows[n].label);
 109     gtk_widget_set_style(label, tool_style);
 110     gtk_misc_set_alignment(GTK_MISC(label), 1/*right*/, 0/*bottom*/);
 111     gtk_table_attach(GTK_TABLE(table), label,
 112                      0, 1,                /* left/right_attach */
 113                      n, n+1,              /* top/bottom_attach */
 114                      GTK_FILL, 0,         /* x/yoptions */
 115                      1, 1);               /* x/ypadding */
 116     globals_rows[n].entry = gtk_entry_new();
 117     gtk_widget_set_style(globals_rows[n].entry, tool_style);
 118     gtk_table_attach(GTK_TABLE(table), globals_rows[n].entry,
 119                      1, 2,                /* left/right_attach */
 120                      n, n+1,              /* top/bottom_attach */
 121                      GTK_FILL, 0,         /* x/yoptions */
 122                      1, 1);               /* x/ypadding */
 123     g_signal_connect(globals_rows[n].entry, "changed",
 124                      G_CALLBACK(globals_entry_changed), &globals_rows[n]);
 125     globals_get(&globals_rows[n]);
 126   }
 127   hbox = create_buttons_box(globals_buttons,
 128                             NGLOBALS_BUTTONS,
 129                             gtk_hbox_new(FALSE, 1));
 130   gtk_table_attach_defaults(GTK_TABLE(table), hbox,
 131                             0, 2,                /* left/right_attach */
 132                             NGLOBALS, NGLOBALS+1); /* top/bottom_attach */
 133
 134   gtk_container_add(GTK_CONTAINER(globals_window), frame_widget(table, NULL));
 135   gtk_widget_show_all(globals_window);
 136 }
 137
 138 /** @brief Called when any global pref changes */
 139 static void globals_pref_changed(const char *event,
 140                                  void *eventdata,
 141                                  void *callbackdata) {
 142   const char *pref = eventdata;
 143   if(!globals_window)
 144     return;                     /* not paying attention */
 145   for(size_t n = 0; n < NGLOBALS; ++n) {
 146     if(!strcmp(pref, globals_rows[n].pref))
 147       globals_get(&globals_rows[n]);
 148   }
 149 }
 150
 151 /** @brief Initialize globals infrastructure */
 152 void globals_init() {
 153   event_register("global-pref", globals_pref_changed, NULL);
 154 }