libempathy-gtk/empathy-search-bar.c

   1 /* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /*
   3  * Copyright (C) 2010 Thomas Meire <blackskad@gmail.com>
   4  *
   5  * The code contained in this file is free software; you can redistribute
   6  * it and/or modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either version
   8  * 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This file 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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this code; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19
  20 #include "config.h"
  21
  22 #include <glib.h>
  23 #include <glib-object.h>
  24 #include <glib/gi18n-lib.h>
  25 #include <gtk/gtk.h>
  26 #include <gdk/gdkkeysyms.h>
  27
  28 #include <libempathy/empathy-utils.h>
  29
  30 #include "empathy-chat-view.h"
  31 #include "empathy-search-bar.h"
  32 #include "empathy-ui-utils.h"
  33
  34 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathySearchBar)
  35
  36 G_DEFINE_TYPE (EmpathySearchBar, empathy_search_bar, GTK_TYPE_BOX);
  37
  38 typedef struct _EmpathySearchBarPriv EmpathySearchBarPriv;
  39 struct _EmpathySearchBarPriv
  40 {
  41   EmpathyChatView *chat_view;
  42
  43   GtkWidget *search_entry;
  44
  45   GtkWidget *search_match_case;
  46
  47   GtkWidget *search_match_case_toolitem;
  48
  49   GtkWidget *search_close;
  50   GtkWidget *search_previous;
  51   GtkWidget *search_next;
  52   GtkWidget *search_not_found;
  53 };
  54
  55 GtkWidget *
  56 empathy_search_bar_new (EmpathyChatView *view)
  57 {
  58   EmpathySearchBar *self = g_object_new (EMPATHY_TYPE_SEARCH_BAR, NULL);
  59
  60   GET_PRIV (self)->chat_view = view;
  61
  62   return GTK_WIDGET (self);
  63 }
  64
  65 static void
  66 empathy_search_bar_update_buttons (EmpathySearchBar *self,
  67     gchar *search,
  68     gboolean match_case)
  69 {
  70   gboolean can_go_forward = FALSE;
  71   gboolean can_go_backward = FALSE;
  72
  73   EmpathySearchBarPriv* priv = GET_PRIV (self);
  74
  75   /* update previous / next buttons */
  76   empathy_chat_view_find_abilities (priv->chat_view, search, match_case,
  77       &can_go_backward, &can_go_forward);
  78
  79   gtk_widget_set_sensitive (priv->search_previous,
  80       can_go_backward && !EMP_STR_EMPTY (search));
  81   gtk_widget_set_sensitive (priv->search_next,
  82       can_go_forward && !EMP_STR_EMPTY (search));
  83 }
  84
  85 static void
  86 empathy_search_bar_update (EmpathySearchBar *self)
  87 {
  88   gchar *search;
  89   gboolean match_case;
  90   EmpathySearchBarPriv *priv = GET_PRIV (self);
  91
  92   search = gtk_editable_get_chars (GTK_EDITABLE(priv->search_entry), 0, -1);
  93   match_case = gtk_toggle_button_get_active (
  94       GTK_TOGGLE_BUTTON (priv->search_match_case));
  95
  96   /* highlight & search */
  97   empathy_chat_view_highlight (priv->chat_view, search, match_case);
  98
  99   /* update the buttons */
 100   empathy_search_bar_update_buttons (self, search, match_case);
 101
 102   g_free (search);
 103 }
 104
 105 void
 106 empathy_search_bar_show (EmpathySearchBar *self)
 107 {
 108   EmpathySearchBarPriv *priv = GET_PRIV (self);
 109
 110   /* update the highlighting and buttons */
 111   empathy_search_bar_update (self);
 112
 113   /* grab the focus to the search entry */
 114   gtk_widget_grab_focus (priv->search_entry);
 115
 116   gtk_widget_show (GTK_WIDGET (self));
 117 }
 118
 119 void
 120 empathy_search_bar_hide (EmpathySearchBar *self)
 121 {
 122   EmpathySearchBarPriv *priv = GET_PRIV (self);
 123
 124   empathy_chat_view_highlight (priv->chat_view, "", FALSE);
 125   gtk_widget_hide (GTK_WIDGET (self));
 126
 127   /* give the focus back to the focus-chain with the chat view */
 128   gtk_widget_grab_focus (GTK_WIDGET (priv->chat_view));
 129 }
 130
 131 static void
 132 empathy_search_bar_search (EmpathySearchBar *self,
 133     gboolean next,
 134     gboolean new_search)
 135 {
 136   gchar *search;
 137   gboolean found;
 138   gboolean match_case;
 139   EmpathySearchBarPriv *priv;
 140
 141   priv = GET_PRIV (self);
 142
 143   search = gtk_editable_get_chars (GTK_EDITABLE(priv->search_entry), 0, -1);
 144   match_case = gtk_toggle_button_get_active (
 145       GTK_TOGGLE_BUTTON (priv->search_match_case));
 146
 147   /* highlight & search */
 148   empathy_chat_view_highlight (priv->chat_view, search, match_case);
 149   if (next)
 150     {
 151       found = empathy_chat_view_find_next (priv->chat_view,
 152           search,
 153           new_search,
 154           match_case);
 155     }
 156   else
 157     {
 158       found = empathy_chat_view_find_previous (priv->chat_view,
 159           search,
 160           new_search,
 161           match_case);
 162     }
 163
 164   /* (don't) display the not found label */
 165   gtk_widget_set_visible (priv->search_not_found,
 166       !(found || EMP_STR_EMPTY (search)));
 167
 168   /* update the buttons */
 169   empathy_search_bar_update_buttons (self, search, match_case);
 170
 171   g_free (search);
 172 }
 173
 174 static void
 175 empathy_search_bar_close_cb (GtkButton *button,
 176     gpointer user_data)
 177 {
 178   empathy_search_bar_hide (EMPATHY_SEARCH_BAR (user_data));
 179 }
 180
 181 static void
 182 empathy_search_bar_entry_changed (GtkEditable *entry,
 183     gpointer user_data)
 184 {
 185   empathy_search_bar_search (EMPATHY_SEARCH_BAR (user_data), FALSE, TRUE);
 186 }
 187
 188 static gboolean
 189 empathy_search_bar_key_pressed (GtkWidget   *widget,
 190     GdkEventKey *event,
 191     gpointer user_data)
 192 {
 193   if (event->keyval == GDK_KEY_Escape)
 194     {
 195       empathy_search_bar_hide (EMPATHY_SEARCH_BAR (widget));
 196       return TRUE;
 197     }
 198   return FALSE;
 199 }
 200
 201 static void
 202 empathy_search_bar_next_cb (GtkButton *button,
 203     gpointer user_data)
 204 {
 205   empathy_search_bar_search (EMPATHY_SEARCH_BAR (user_data), TRUE, FALSE);
 206 }
 207
 208 static void
 209 empathy_search_bar_previous_cb (GtkButton *button,
 210     gpointer user_data)
 211 {
 212   empathy_search_bar_search (EMPATHY_SEARCH_BAR (user_data), FALSE, FALSE);
 213 }
 214
 215 static void
 216 empathy_search_bar_match_case_toggled (GtkButton *button,
 217     gpointer user_data)
 218 {
 219   empathy_search_bar_update (EMPATHY_SEARCH_BAR (user_data));
 220 }
 221
 222 static void
 223 empathy_search_bar_match_case_menu_toggled (GtkWidget *check,
 224     gpointer user_data)
 225 {
 226   EmpathySearchBarPriv* priv = GET_PRIV ( EMPATHY_SEARCH_BAR (user_data));
 227   gboolean match_case;
 228
 229   match_case = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (check));
 230
 231   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->search_match_case),
 232       match_case);
 233 }
 234
 235 static gboolean
 236 empathy_searchbar_create_menu_proxy_cb (GtkToolItem *toolitem,
 237     gpointer user_data)
 238 {
 239   EmpathySearchBarPriv* priv = GET_PRIV ( EMPATHY_SEARCH_BAR (user_data));
 240   GtkWidget *checkbox_menu;
 241   gboolean match_case;
 242
 243   checkbox_menu = gtk_check_menu_item_new_with_mnemonic (_("_Match case"));
 244   match_case = gtk_toggle_button_get_active (
 245       GTK_TOGGLE_BUTTON (priv->search_match_case));
 246   gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (checkbox_menu),
 247       match_case);
 248
 249   g_signal_connect (checkbox_menu, "toggled",
 250       G_CALLBACK (empathy_search_bar_match_case_menu_toggled), user_data);
 251
 252   gtk_tool_item_set_proxy_menu_item (toolitem, "menu-proxy",
 253       checkbox_menu);
 254
 255   return TRUE;
 256 }
 257
 258 static void
 259 empathy_search_bar_init (EmpathySearchBar * self)
 260 {
 261   gchar *filename;
 262   GtkBuilder *gui;
 263   GtkWidget *internal;
 264   EmpathySearchBarPriv *priv;
 265
 266   priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_SEARCH_BAR,
 267       EmpathySearchBarPriv);
 268
 269   self->priv = priv;
 270
 271   filename = empathy_file_lookup ("empathy-search-bar.ui", "libempathy-gtk");
 272   gui = empathy_builder_get_file (filename,
 273       "search_widget", &internal,
 274       "search_close", &priv->search_close,
 275       "search_entry", &priv->search_entry,
 276       "search_previous", &priv->search_previous,
 277       "search_next", &priv->search_next,
 278       "search_not_found", &priv->search_not_found,
 279       "search_match_case", &priv->search_match_case,
 280       NULL);
 281   g_free (filename);
 282
 283   /* Add the signals */
 284   empathy_builder_connect (gui, self,
 285       "search_close", "clicked", empathy_search_bar_close_cb,
 286       "search_entry", "changed", empathy_search_bar_entry_changed,
 287       "search_previous", "clicked", empathy_search_bar_previous_cb,
 288       "search_next", "clicked", empathy_search_bar_next_cb,
 289       "search_match_case", "toggled", empathy_search_bar_match_case_toggled,
 290       "search_match_case_toolitem", "create-menu-proxy", empathy_searchbar_create_menu_proxy_cb,
 291       NULL);
 292
 293   g_signal_connect (G_OBJECT (self), "key-press-event",
 294       G_CALLBACK (empathy_search_bar_key_pressed), NULL);
 295
 296   gtk_box_pack_start (GTK_BOX (self), internal, TRUE, TRUE, 0);
 297   gtk_widget_show_all (internal);
 298   gtk_widget_hide (priv->search_not_found);
 299   g_object_unref (gui);
 300 }
 301
 302 static void
 303 empathy_search_bar_class_init (EmpathySearchBarClass *class)
 304 {
 305   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 306
 307   g_type_class_add_private (gobject_class, sizeof (EmpathySearchBarPriv));
 308 }
 309
 310 void
 311 empathy_search_bar_paste_clipboard (EmpathySearchBar *self)
 312 {
 313   EmpathySearchBarPriv *priv = GET_PRIV (self);
 314
 315   gtk_editable_paste_clipboard (GTK_EDITABLE (priv->search_entry));
 316 }