libempathy-gtk/empathy-ui-utils.c

   1 /*
   2  * Copyright (C) 2002-2007 Imendio AB
   3  * Copyright (C) 2007-2010 Collabora Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (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 GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  18  * Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Mikael Hallendal <micke@imendio.com>
  21  *          Richard Hult <richard@imendio.com>
  22  *          Martyn Russell <martyn@imendio.com>
  23  *          Xavier Claessens <xclaesse@gmail.com>
  24  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  25  *          Travis Reitter <travis.reitter@collabora.co.uk>
  26  *
  27  *          Part of this file is copied from GtkSourceView (gtksourceiter.c):
  28  *          Paolo Maggi
  29  *          Jeroen Zwartepoorte
  30  */
  31
  32 #include "config.h"
  33 #include "empathy-ui-utils.h"
  34
  35 #include <X11/Xatom.h>
  36 #include <gdk/gdkx.h>
  37 #include <glib/gi18n-lib.h>
  38 #include <gio/gdesktopappinfo.h>
  39 #include <tp-account-widgets/tpaw-live-search.h>
  40 #include <tp-account-widgets/tpaw-pixbuf-utils.h>
  41 #include <tp-account-widgets/tpaw-utils.h>
  42
  43 #include "empathy-ft-factory.h"
  44 #include "empathy-images.h"
  45 #include "empathy-utils.h"
  46
  47 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  48 #include "empathy-debug.h"
  49
  50 void
  51 empathy_gtk_init (void)
  52 {
  53   static gboolean initialized = FALSE;
  54
  55   if (initialized)
  56     return;
  57
  58   empathy_init ();
  59
  60   gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
  61       PKGDATADIR G_DIR_SEPARATOR_S "icons");
  62
  63   /* Add icons from source dir if available */
  64   if (g_getenv ("EMPATHY_SRCDIR") != NULL)
  65     {
  66       gchar *path;
  67
  68       path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), "data",
  69           "icons", "local-copy", NULL);
  70
  71       if (g_file_test (path, G_FILE_TEST_EXISTS))
  72         gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (), path);
  73
  74       g_free (path);
  75     }
  76
  77   initialized = TRUE;
  78 }
  79
  80 const gchar *
  81 empathy_icon_name_for_presence (TpConnectionPresenceType presence)
  82 {
  83   switch (presence)
  84     {
  85       case TP_CONNECTION_PRESENCE_TYPE_AVAILABLE:
  86         return EMPATHY_IMAGE_AVAILABLE;
  87       case TP_CONNECTION_PRESENCE_TYPE_BUSY:
  88         return EMPATHY_IMAGE_BUSY;
  89       case TP_CONNECTION_PRESENCE_TYPE_AWAY:
  90         return EMPATHY_IMAGE_AWAY;
  91       case TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY:
  92         if (gtk_icon_theme_has_icon (gtk_icon_theme_get_default (),
  93                    EMPATHY_IMAGE_EXT_AWAY))
  94           return EMPATHY_IMAGE_EXT_AWAY;
  95
  96         /* The 'extended-away' icon is not an official one so we fallback to
  97          * idle if it's not implemented */
  98         return EMPATHY_IMAGE_IDLE;
  99       case TP_CONNECTION_PRESENCE_TYPE_HIDDEN:
 100         if (gtk_icon_theme_has_icon (gtk_icon_theme_get_default (),
 101                    EMPATHY_IMAGE_HIDDEN))
 102           return EMPATHY_IMAGE_HIDDEN;
 103
 104         /* The 'hidden' icon is not an official one so we fallback to offline if
 105          * it's not implemented */
 106         return EMPATHY_IMAGE_OFFLINE;
 107       case TP_CONNECTION_PRESENCE_TYPE_OFFLINE:
 108       case TP_CONNECTION_PRESENCE_TYPE_ERROR:
 109         return EMPATHY_IMAGE_OFFLINE;
 110       case TP_CONNECTION_PRESENCE_TYPE_UNKNOWN:
 111         return EMPATHY_IMAGE_PENDING;
 112       case TP_CONNECTION_PRESENCE_TYPE_UNSET:
 113       default:
 114         return NULL;
 115     }
 116
 117   return NULL;
 118 }
 119
 120 const gchar *
 121 empathy_icon_name_for_contact (EmpathyContact *contact)
 122 {
 123   TpConnectionPresenceType presence;
 124
 125   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact),
 126       EMPATHY_IMAGE_OFFLINE);
 127
 128   presence = empathy_contact_get_presence (contact);
 129   return empathy_icon_name_for_presence (presence);
 130 }
 131
 132 const gchar *
 133 empathy_icon_name_for_individual (FolksIndividual *individual)
 134 {
 135   FolksPresenceType folks_presence;
 136   TpConnectionPresenceType presence;
 137
 138   folks_presence = folks_presence_details_get_presence_type (
 139       FOLKS_PRESENCE_DETAILS (individual));
 140   presence = empathy_folks_presence_type_to_tp (folks_presence);
 141
 142   return empathy_icon_name_for_presence (presence);
 143 }
 144
 145 const gchar *
 146 empathy_protocol_name_for_contact (EmpathyContact *contact)
 147 {
 148   TpAccount *account;
 149
 150   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 151
 152   account = empathy_contact_get_account (contact);
 153   if (account == NULL)
 154     return NULL;
 155
 156   return tp_account_get_icon_name (account);
 157 }
 158
 159 struct SizeData
 160 {
 161   gint width;
 162   gint height;
 163   gboolean preserve_aspect_ratio;
 164 };
 165
 166 static void
 167 pixbuf_from_avatar_size_prepared_cb (GdkPixbufLoader *loader,
 168     int width,
 169     int height,
 170     struct SizeData *data)
 171 {
 172   g_return_if_fail (width > 0 && height > 0);
 173
 174   if (data->preserve_aspect_ratio && (data->width > 0 || data->height > 0))
 175     {
 176       if (data->width < 0)
 177         {
 178           width = width * (double) data->height / (gdouble) height;
 179           height = data->height;
 180         }
 181       else if (data->height < 0)
 182         {
 183           height = height * (double) data->width / (double) width;
 184           width = data->width;
 185         }
 186       else if ((double) height * (double) data->width >
 187            (double) width * (double) data->height)
 188         {
 189           width = 0.5 + (double) width * (double) data->height / (double) height;
 190           height = data->height;
 191         }
 192       else
 193         {
 194           height = 0.5 + (double) height * (double) data->width / (double) width;
 195           width = data->width;
 196         }
 197     }
 198   else
 199     {
 200       if (data->width > 0)
 201         width = data->width;
 202
 203       if (data->height > 0)
 204         height = data->height;
 205     }
 206
 207   gdk_pixbuf_loader_set_size (loader, width, height);
 208 }
 209
 210 static void
 211 empathy_avatar_pixbuf_roundify (GdkPixbuf *pixbuf)
 212 {
 213   gint width, height, rowstride;
 214   guchar *pixels;
 215
 216   width = gdk_pixbuf_get_width (pixbuf);
 217   height = gdk_pixbuf_get_height (pixbuf);
 218   rowstride = gdk_pixbuf_get_rowstride (pixbuf);
 219   pixels = gdk_pixbuf_get_pixels (pixbuf);
 220
 221   if (width < 6 || height < 6)
 222     return;
 223
 224   /* Top left */
 225   pixels[3] = 0;
 226   pixels[7] = 0x80;
 227   pixels[11] = 0xC0;
 228   pixels[rowstride + 3] = 0x80;
 229   pixels[rowstride * 2 + 3] = 0xC0;
 230
 231   /* Top right */
 232   pixels[width * 4 - 1] = 0;
 233   pixels[width * 4 - 5] = 0x80;
 234   pixels[width * 4 - 9] = 0xC0;
 235   pixels[rowstride + (width * 4) - 1] = 0x80;
 236   pixels[(2 * rowstride) + (width * 4) - 1] = 0xC0;
 237
 238   /* Bottom left */
 239   pixels[(height - 1) * rowstride + 3] = 0;
 240   pixels[(height - 1) * rowstride + 7] = 0x80;
 241   pixels[(height - 1) * rowstride + 11] = 0xC0;
 242   pixels[(height - 2) * rowstride + 3] = 0x80;
 243   pixels[(height - 3) * rowstride + 3] = 0xC0;
 244
 245   /* Bottom right */
 246   pixels[height * rowstride - 1] = 0;
 247   pixels[(height - 1) * rowstride - 1] = 0x80;
 248   pixels[(height - 2) * rowstride - 1] = 0xC0;
 249   pixels[height * rowstride - 5] = 0x80;
 250   pixels[height * rowstride - 9] = 0xC0;
 251 }
 252
 253 static gboolean
 254 empathy_gdk_pixbuf_is_opaque (GdkPixbuf *pixbuf)
 255 {
 256   gint height, rowstride, i;
 257   guchar *pixels;
 258   guchar *row;
 259
 260   height = gdk_pixbuf_get_height (pixbuf);
 261   rowstride = gdk_pixbuf_get_rowstride (pixbuf);
 262   pixels = gdk_pixbuf_get_pixels (pixbuf);
 263
 264   row = pixels;
 265   for (i = 3; i < rowstride; i+=4)
 266     if (row[i] < 0xfe)
 267       return FALSE;
 268
 269   for (i = 1; i < height - 1; i++)
 270     {
 271       row = pixels + (i*rowstride);
 272       if (row[3] < 0xfe || row[rowstride-1] < 0xfe)
 273         return FALSE;
 274     }
 275
 276   row = pixels + ((height-1) * rowstride);
 277   for (i = 3; i < rowstride; i+=4)
 278     if (row[i] < 0xfe)
 279       return FALSE;
 280
 281   return TRUE;
 282 }
 283
 284 static GdkPixbuf *
 285 pixbuf_round_corners (GdkPixbuf *pixbuf)
 286 {
 287   GdkPixbuf *result;
 288
 289   if (!gdk_pixbuf_get_has_alpha (pixbuf))
 290     {
 291       result = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
 292           gdk_pixbuf_get_width (pixbuf),
 293           gdk_pixbuf_get_height (pixbuf));
 294
 295       gdk_pixbuf_copy_area (pixbuf, 0, 0,
 296           gdk_pixbuf_get_width (pixbuf),
 297           gdk_pixbuf_get_height (pixbuf),
 298           result,
 299           0, 0);
 300     }
 301   else
 302     {
 303       result = g_object_ref (pixbuf);
 304     }
 305
 306   if (empathy_gdk_pixbuf_is_opaque (result))
 307     empathy_avatar_pixbuf_roundify (result);
 308
 309   return result;
 310 }
 311
 312 static GdkPixbuf *
 313 avatar_pixbuf_from_loader (GdkPixbufLoader *loader)
 314 {
 315   GdkPixbuf *pixbuf;
 316
 317   pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
 318
 319   return pixbuf_round_corners (pixbuf);
 320 }
 321
 322 static GdkPixbuf *
 323 empathy_pixbuf_from_avatar_scaled (EmpathyAvatar *avatar,
 324     gint width,
 325     gint height)
 326 {
 327   GdkPixbuf *pixbuf;
 328   GdkPixbufLoader *loader;
 329   struct SizeData data;
 330   GError *error = NULL;
 331
 332   if (!avatar)
 333     return NULL;
 334
 335   data.width = width;
 336   data.height = height;
 337   data.preserve_aspect_ratio = TRUE;
 338
 339   loader = gdk_pixbuf_loader_new ();
 340
 341   g_signal_connect (loader, "size-prepared",
 342       G_CALLBACK (pixbuf_from_avatar_size_prepared_cb), &data);
 343
 344   if (avatar->len == 0)
 345     {
 346       g_warning ("Avatar has 0 length");
 347       return NULL;
 348     }
 349   else if (!gdk_pixbuf_loader_write (loader, avatar->data, avatar->len, &error))
 350     {
 351       g_warning ("Couldn't write avatar image:%p with "
 352           "length:%" G_GSIZE_FORMAT " to pixbuf loader: %s",
 353           avatar->data, avatar->len, error->message);
 354
 355       g_error_free (error);
 356       return NULL;
 357     }
 358
 359   gdk_pixbuf_loader_close (loader, NULL);
 360   pixbuf = avatar_pixbuf_from_loader (loader);
 361
 362   g_object_unref (loader);
 363
 364   return pixbuf;
 365 }
 366
 367 GdkPixbuf *
 368 empathy_pixbuf_avatar_from_contact_scaled (EmpathyContact *contact,
 369     gint width,
 370     gint height)
 371 {
 372   EmpathyAvatar *avatar;
 373
 374   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 375
 376   avatar = empathy_contact_get_avatar (contact);
 377
 378   return empathy_pixbuf_from_avatar_scaled (avatar, width, height);
 379 }
 380
 381 typedef struct
 382 {
 383   GSimpleAsyncResult *result;
 384   guint width;
 385   guint height;
 386   GCancellable *cancellable;
 387 } PixbufAvatarFromIndividualClosure;
 388
 389 static PixbufAvatarFromIndividualClosure *
 390 pixbuf_avatar_from_individual_closure_new (FolksIndividual *individual,
 391     GSimpleAsyncResult *result,
 392     gint width,
 393     gint height,
 394     GCancellable *cancellable)
 395 {
 396   PixbufAvatarFromIndividualClosure *closure;
 397
 398   g_return_val_if_fail (FOLKS_IS_INDIVIDUAL (individual), NULL);
 399   g_return_val_if_fail (G_IS_ASYNC_RESULT (result), NULL);
 400
 401   closure = g_slice_new0 (PixbufAvatarFromIndividualClosure);
 402   closure->result = g_object_ref (result);
 403   closure->width = width;
 404   closure->height = height;
 405
 406   if (cancellable != NULL)
 407     closure->cancellable = g_object_ref (cancellable);
 408
 409   return closure;
 410 }
 411
 412 static void
 413 pixbuf_avatar_from_individual_closure_free (
 414     PixbufAvatarFromIndividualClosure *closure)
 415 {
 416   g_clear_object (&closure->cancellable);
 417   g_object_unref (closure->result);
 418   g_slice_free (PixbufAvatarFromIndividualClosure, closure);
 419 }
 420
 421 /**
 422  * @pixbuf: (transfer all)
 423  *
 424  * Return: (transfer all)
 425  */
 426 static GdkPixbuf *
 427 transform_pixbuf (GdkPixbuf *pixbuf)
 428 {
 429   GdkPixbuf *result;
 430
 431   result = pixbuf_round_corners (pixbuf);
 432   g_object_unref (pixbuf);
 433
 434   return result;
 435 }
 436
 437 static void
 438 avatar_icon_load_cb (GObject *object,
 439     GAsyncResult *result,
 440     gpointer user_data)
 441 {
 442   GLoadableIcon *icon = G_LOADABLE_ICON (object);
 443   PixbufAvatarFromIndividualClosure *closure = user_data;
 444   GInputStream *stream;
 445   GError *error = NULL;
 446   GdkPixbuf *pixbuf;
 447   GdkPixbuf *final_pixbuf;
 448
 449   stream = g_loadable_icon_load_finish (icon, result, NULL, &error);
 450   if (error != NULL)
 451     {
 452       DEBUG ("Failed to open avatar stream: %s", error->message);
 453       g_simple_async_result_set_from_error (closure->result, error);
 454       goto out;
 455     }
 456
 457   pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream,
 458       closure->width, closure->height, TRUE, closure->cancellable, &error);
 459
 460   g_object_unref (stream);
 461
 462   if (pixbuf == NULL)
 463     {
 464       DEBUG ("Failed to read avatar: %s", error->message);
 465       g_simple_async_result_set_from_error (closure->result, error);
 466       goto out;
 467     }
 468
 469   final_pixbuf = transform_pixbuf (pixbuf);
 470
 471   /* Pass ownership of final_pixbuf to the result */
 472   g_simple_async_result_set_op_res_gpointer (closure->result,
 473       final_pixbuf, g_object_unref);
 474
 475 out:
 476   g_simple_async_result_complete (closure->result);
 477
 478   g_clear_error (&error);
 479   pixbuf_avatar_from_individual_closure_free (closure);
 480 }
 481
 482 void
 483 empathy_pixbuf_avatar_from_individual_scaled_async (
 484     FolksIndividual *individual,
 485     gint width,
 486     gint height,
 487     GCancellable *cancellable,
 488     GAsyncReadyCallback callback,
 489     gpointer user_data)
 490 {
 491   GLoadableIcon *avatar_icon;
 492   GSimpleAsyncResult *result;
 493   PixbufAvatarFromIndividualClosure *closure;
 494
 495   result = g_simple_async_result_new (G_OBJECT (individual),
 496       callback, user_data, empathy_pixbuf_avatar_from_individual_scaled_async);
 497
 498   avatar_icon = folks_avatar_details_get_avatar (
 499       FOLKS_AVATAR_DETAILS (individual));
 500
 501   if (avatar_icon == NULL)
 502     {
 503       g_simple_async_result_set_error (result, G_IO_ERROR,
 504         G_IO_ERROR_NOT_FOUND, "no avatar found");
 505
 506       g_simple_async_result_complete (result);
 507       g_object_unref (result);
 508       return;
 509     }
 510
 511   closure = pixbuf_avatar_from_individual_closure_new (individual, result,
 512       width, height, cancellable);
 513
 514   g_return_if_fail (closure != NULL);
 515
 516   g_loadable_icon_load_async (avatar_icon, width, cancellable,
 517       avatar_icon_load_cb, closure);
 518
 519   g_object_unref (result);
 520 }
 521
 522 /* Return a ref on the GdkPixbuf */
 523 GdkPixbuf *
 524 empathy_pixbuf_avatar_from_individual_scaled_finish (
 525     FolksIndividual *individual,
 526     GAsyncResult *result,
 527     GError **error)
 528 {
 529   GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
 530   gboolean result_valid;
 531   GdkPixbuf *pixbuf;
 532
 533   g_return_val_if_fail (FOLKS_IS_INDIVIDUAL (individual), NULL);
 534   g_return_val_if_fail (G_IS_SIMPLE_ASYNC_RESULT (simple), NULL);
 535
 536   if (g_simple_async_result_propagate_error (simple, error))
 537     return NULL;
 538
 539   result_valid = g_simple_async_result_is_valid (result,
 540       G_OBJECT (individual),
 541       empathy_pixbuf_avatar_from_individual_scaled_async);
 542
 543   g_return_val_if_fail (result_valid, NULL);
 544
 545   pixbuf = g_simple_async_result_get_op_res_gpointer (simple);
 546   return pixbuf != NULL ? g_object_ref (pixbuf) : NULL;
 547 }
 548
 549 GdkPixbuf *
 550 empathy_pixbuf_contact_status_icon (EmpathyContact *contact,
 551     gboolean show_protocol)
 552 {
 553   const gchar *icon_name;
 554
 555   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 556
 557   icon_name = empathy_icon_name_for_contact (contact);
 558
 559   if (icon_name == NULL)
 560     return NULL;
 561
 562   return empathy_pixbuf_contact_status_icon_with_icon_name (contact,
 563       icon_name, show_protocol);
 564 }
 565
 566 static GdkPixbuf * empathy_pixbuf_protocol_from_contact_scaled (
 567     EmpathyContact *contact,
 568     gint width,
 569     gint height);
 570
 571 GdkPixbuf *
 572 empathy_pixbuf_contact_status_icon_with_icon_name (EmpathyContact *contact,
 573     const gchar *icon_name,
 574     gboolean show_protocol)
 575 {
 576   GdkPixbuf *pix_status;
 577   GdkPixbuf *pix_protocol;
 578   gchar *icon_filename;
 579   gint height, width;
 580   gint numerator, denominator;
 581
 582   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact) ||
 583       (show_protocol == FALSE), NULL);
 584   g_return_val_if_fail (icon_name != NULL, NULL);
 585
 586   numerator = 3;
 587   denominator = 4;
 588
 589   icon_filename = tpaw_filename_from_icon_name (icon_name,
 590       GTK_ICON_SIZE_MENU);
 591
 592   if (icon_filename == NULL)
 593     {
 594       DEBUG ("icon name: %s could not be found\n", icon_name);
 595       return NULL;
 596     }
 597
 598   pix_status = gdk_pixbuf_new_from_file (icon_filename, NULL);
 599
 600   if (pix_status == NULL)
 601     {
 602       DEBUG ("Could not open icon %s\n", icon_filename);
 603       g_free (icon_filename);
 604       return NULL;
 605     }
 606
 607   g_free (icon_filename);
 608
 609   if (!show_protocol)
 610     return pix_status;
 611
 612   height = gdk_pixbuf_get_height (pix_status);
 613   width = gdk_pixbuf_get_width (pix_status);
 614
 615   pix_protocol = empathy_pixbuf_protocol_from_contact_scaled (contact,
 616       width * numerator / denominator,
 617       height * numerator / denominator);
 618
 619   if (pix_protocol == NULL)
 620     return pix_status;
 621
 622   gdk_pixbuf_composite (pix_protocol, pix_status,
 623       0, height - height * numerator / denominator,
 624       width * numerator / denominator, height * numerator / denominator,
 625       0, height - height * numerator / denominator,
 626       1, 1,
 627       GDK_INTERP_BILINEAR, 255);
 628
 629   g_object_unref (pix_protocol);
 630
 631   return pix_status;
 632 }
 633
 634 static GdkPixbuf *
 635 empathy_pixbuf_protocol_from_contact_scaled (EmpathyContact *contact,
 636     gint width,
 637     gint height)
 638 {
 639   TpAccount *account;
 640   gchar *filename;
 641   GdkPixbuf *pixbuf = NULL;
 642
 643   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 644
 645   account = empathy_contact_get_account (contact);
 646   filename = tpaw_filename_from_icon_name (
 647       tp_account_get_icon_name (account), GTK_ICON_SIZE_MENU);
 648
 649   if (filename != NULL)
 650     {
 651       pixbuf = gdk_pixbuf_new_from_file_at_size (filename, width, height, NULL);
 652       g_free (filename);
 653     }
 654
 655   return pixbuf;
 656 }
 657
 658 void
 659 empathy_url_show (GtkWidget *parent,
 660       const char *url)
 661 {
 662   gchar  *real_url;
 663   GError *error = NULL;
 664
 665   g_return_if_fail (parent == NULL || GTK_IS_WIDGET (parent));
 666   g_return_if_fail (url != NULL);
 667
 668   real_url = tpaw_make_absolute_url (url);
 669
 670   gtk_show_uri (parent ? gtk_widget_get_screen (parent) : NULL, real_url,
 671       gtk_get_current_event_time (), &error);
 672
 673   if (error)
 674     {
 675       GtkWidget *dialog;
 676
 677       dialog = gtk_message_dialog_new (NULL, 0,
 678           GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
 679           _("Unable to open URI"));
 680
 681       gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
 682           "%s", error->message);
 683
 684       g_signal_connect (dialog, "response",
 685             G_CALLBACK (gtk_widget_destroy), NULL);
 686
 687       gtk_window_present (GTK_WINDOW (dialog));
 688
 689       g_clear_error (&error);
 690     }
 691
 692   g_free (real_url);
 693 }
 694
 695 void
 696 empathy_send_file (EmpathyContact *contact,
 697     GFile *file)
 698 {
 699   EmpathyFTFactory *factory;
 700   GtkRecentManager *manager;
 701   gchar *uri;
 702
 703   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 704   g_return_if_fail (G_IS_FILE (file));
 705
 706   factory = empathy_ft_factory_dup_singleton ();
 707
 708   empathy_ft_factory_new_transfer_outgoing (factory, contact, file,
 709       empathy_get_current_action_time ());
 710
 711   uri = g_file_get_uri (file);
 712   manager = gtk_recent_manager_get_default ();
 713   gtk_recent_manager_add_item (manager, uri);
 714   g_free (uri);
 715
 716   g_object_unref (factory);
 717 }
 718
 719 void
 720 empathy_send_file_from_uri_list (EmpathyContact *contact,
 721     const gchar *uri_list)
 722 {
 723   const gchar *nl;
 724   GFile *file;
 725
 726   /* Only handle a single file for now. It would be wicked cool to be
 727      able to do multiple files, offering to zip them or whatever like
 728      nautilus-sendto does. Note that text/uri-list is defined to have
 729      each line terminated by \r\n, but we can be tolerant of applications
 730      that only use \n or don't terminate single-line entries.
 731   */
 732   nl = strstr (uri_list, "\r\n");
 733   if (!nl)
 734     nl = strchr (uri_list, '\n');
 735
 736   if (nl)
 737     {
 738       gchar *uri = g_strndup (uri_list, nl - uri_list);
 739       file = g_file_new_for_uri (uri);
 740       g_free (uri);
 741     }
 742   else
 743     {
 744       file = g_file_new_for_uri (uri_list);
 745     }
 746
 747   empathy_send_file (contact, file);
 748
 749   g_object_unref (file);
 750 }
 751
 752 static void
 753 file_manager_send_file_response_cb (GtkDialog *widget,
 754     gint response_id,
 755     EmpathyContact *contact)
 756 {
 757   GFile *file;
 758
 759   if (response_id == GTK_RESPONSE_OK)
 760     {
 761       file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (widget));
 762
 763       empathy_send_file (contact, file);
 764
 765       g_object_unref (file);
 766     }
 767
 768   g_object_unref (contact);
 769   gtk_widget_destroy (GTK_WIDGET (widget));
 770 }
 771
 772 static gboolean
 773 filter_cb (const GtkFileFilterInfo *filter_info,
 774     gpointer data)
 775 {
 776   /* filter out socket files */
 777   return tp_strdiff (filter_info->mime_type, "inode/socket");
 778 }
 779
 780 static GtkFileFilter *
 781 create_file_filter (void)
 782 {
 783   GtkFileFilter *filter;
 784
 785   filter = gtk_file_filter_new ();
 786
 787   gtk_file_filter_add_custom (filter, GTK_FILE_FILTER_MIME_TYPE, filter_cb,
 788     NULL, NULL);
 789
 790   return filter;
 791 }
 792
 793 void
 794 empathy_send_file_with_file_chooser (EmpathyContact *contact)
 795 {
 796   GtkWidget *widget;
 797   GtkWidget *button;
 798
 799   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 800
 801   DEBUG ("Creating selection file chooser");
 802
 803   widget = gtk_file_chooser_dialog_new (_("Select a file"), NULL,
 804       GTK_FILE_CHOOSER_ACTION_OPEN,
 805       GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 806       NULL);
 807
 808   /* send button */
 809   button = gtk_button_new_with_mnemonic (_("_Send"));
 810   gtk_button_set_image (GTK_BUTTON (button),
 811       gtk_image_new_from_icon_name (EMPATHY_IMAGE_DOCUMENT_SEND,
 812         GTK_ICON_SIZE_BUTTON));
 813   gtk_widget_show (button);
 814
 815   gtk_dialog_add_action_widget (GTK_DIALOG (widget), button,
 816       GTK_RESPONSE_OK);
 817
 818   gtk_widget_set_can_default (button, TRUE);
 819   gtk_dialog_set_default_response (GTK_DIALOG (widget),
 820       GTK_RESPONSE_OK);
 821
 822   gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (widget), FALSE);
 823
 824   gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (widget),
 825       g_get_home_dir ());
 826
 827   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (widget),
 828       create_file_filter ());
 829
 830   g_signal_connect (widget, "response",
 831       G_CALLBACK (file_manager_send_file_response_cb), g_object_ref (contact));
 832
 833   gtk_widget_show (widget);
 834 }
 835
 836 static void
 837 file_manager_receive_file_response_cb (GtkDialog *dialog,
 838     GtkResponseType response,
 839     EmpathyFTHandler *handler)
 840 {
 841   EmpathyFTFactory *factory;
 842   GFile *file;
 843
 844   if (response == GTK_RESPONSE_OK)
 845     {
 846       GFile *parent;
 847       GFileInfo *info;
 848       guint64 free_space, file_size;
 849       GError *error = NULL;
 850
 851       file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
 852       parent = g_file_get_parent (file);
 853       info = g_file_query_filesystem_info (parent,
 854           G_FILE_ATTRIBUTE_FILESYSTEM_FREE, NULL, &error);
 855
 856       g_object_unref (parent);
 857
 858       if (error != NULL)
 859         {
 860           g_warning ("Error: %s", error->message);
 861
 862           g_object_unref (file);
 863           return;
 864         }
 865
 866       free_space = g_file_info_get_attribute_uint64 (info,
 867           G_FILE_ATTRIBUTE_FILESYSTEM_FREE);
 868       file_size = empathy_ft_handler_get_total_bytes (handler);
 869
 870       g_object_unref (info);
 871
 872       if (file_size > free_space)
 873         {
 874           GtkWidget *message = gtk_message_dialog_new (GTK_WINDOW (dialog),
 875             GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR,
 876             GTK_BUTTONS_CLOSE,
 877             _("Insufficient free space to save file"));
 878           char *file_size_str, *free_space_str;
 879
 880           file_size_str = g_format_size (file_size);
 881           free_space_str = g_format_size (free_space);
 882
 883           gtk_message_dialog_format_secondary_text (
 884               GTK_MESSAGE_DIALOG (message),
 885               _("%s of free space are required to save this "
 886                 "file, but only %s is available. Please "
 887                 "choose another location."),
 888             file_size_str, free_space_str);
 889
 890           gtk_dialog_run (GTK_DIALOG (message));
 891
 892           g_free (file_size_str);
 893           g_free (free_space_str);
 894           gtk_widget_destroy (message);
 895
 896           g_object_unref (file);
 897
 898           return;
 899         }
 900
 901       factory = empathy_ft_factory_dup_singleton ();
 902
 903       empathy_ft_factory_set_destination_for_incoming_handler (
 904           factory, handler, file);
 905
 906       g_object_unref (factory);
 907       g_object_unref (file);
 908     }
 909   else
 910     {
 911       /* unref the handler, as we dismissed the file chooser,
 912        * and refused the transfer.
 913        */
 914       g_object_unref (handler);
 915     }
 916
 917   gtk_widget_destroy (GTK_WIDGET (dialog));
 918 }
 919
 920 void
 921 empathy_receive_file_with_file_chooser (EmpathyFTHandler *handler)
 922 {
 923   GtkWidget *widget;
 924   const gchar *dir;
 925   EmpathyContact *contact;
 926   gchar *title;
 927
 928   contact = empathy_ft_handler_get_contact (handler);
 929   g_assert (contact != NULL);
 930
 931   title = g_strdup_printf (_("Incoming file from %s"),
 932     empathy_contact_get_alias (contact));
 933
 934   widget = gtk_file_chooser_dialog_new (title,
 935       NULL, GTK_FILE_CHOOSER_ACTION_SAVE,
 936       GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 937       GTK_STOCK_SAVE, GTK_RESPONSE_OK,
 938       NULL);
 939
 940   gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (widget),
 941     empathy_ft_handler_get_filename (handler));
 942
 943   gtk_file_chooser_set_do_overwrite_confirmation
 944     (GTK_FILE_CHOOSER (widget), TRUE);
 945
 946   dir = g_get_user_special_dir (G_USER_DIRECTORY_DOWNLOAD);
 947   if (dir == NULL)
 948     /* Fallback to $HOME if $XDG_DOWNLOAD_DIR is not set */
 949     dir = g_get_home_dir ();
 950
 951   gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (widget), dir);
 952
 953   g_signal_connect (widget, "response",
 954       G_CALLBACK (file_manager_receive_file_response_cb), handler);
 955
 956   gtk_widget_show (widget);
 957   g_free (title);
 958 }
 959
 960 void
 961 empathy_make_color_whiter (GdkRGBA *color)
 962 {
 963   const GdkRGBA white = { 1.0, 1.0, 1.0, 1.0 };
 964
 965   color->red = (color->red + white.red) / 2;
 966   color->green = (color->green + white.green) / 2;
 967   color->blue = (color->blue + white.blue) / 2;
 968 }
 969
 970 static void
 971 menu_deactivate_cb (GtkMenu *menu,
 972   gpointer user_data)
 973 {
 974   /* FIXME: we shouldn't have to disconnect the signal (bgo #641327) */
 975   g_signal_handlers_disconnect_by_func (menu,
 976          menu_deactivate_cb, user_data);
 977
 978   gtk_menu_detach (menu);
 979 }
 980
 981 /* Convenient function to create a GtkMenu attached to @attach_to and detach
 982  * it when the menu is not displayed any more. This is useful when creating a
 983  * context menu that we want to get rid as soon as it as been displayed. */
 984 GtkWidget *
 985 empathy_context_menu_new (GtkWidget *attach_to)
 986 {
 987   GtkWidget *menu;
 988
 989   menu = gtk_menu_new ();
 990
 991   gtk_menu_attach_to_widget (GTK_MENU (menu), attach_to, NULL);
 992
 993   /* menu is initially unowned but gtk_menu_attach_to_widget () taked its
 994    * floating ref. We can either wait that @attach_to releases its ref when
 995    * it will be destroyed (when leaving Empathy most of the time) or explicitely
 996    * detach the menu when it's not displayed any more.
 997    * We go for the latter as we don't want to keep useless menus in memory
 998    * during the whole lifetime of Empathy. */
 999   g_signal_connect (menu, "deactivate", G_CALLBACK (menu_deactivate_cb), NULL);
1000
1001   return menu;
1002 }
1003
1004 gint64
1005 empathy_get_current_action_time (void)
1006 {
1007   return (tp_user_action_time_from_x11 (gtk_get_current_event_time ()));
1008 }
1009
1010 /* @words = tpaw_live_search_strip_utf8_string (@text);
1011  *
1012  * User has to pass both so we don't have to compute @words ourself each time
1013  * this function is called. */
1014 gboolean
1015 empathy_individual_match_string (FolksIndividual *individual,
1016     const char *text,
1017     GPtrArray *words)
1018 {
1019   const gchar *str;
1020   GeeSet *personas;
1021   GeeIterator *iter;
1022   gboolean retval = FALSE;
1023
1024   /* check alias name */
1025   str = folks_alias_details_get_alias (FOLKS_ALIAS_DETAILS (individual));
1026
1027   if (tpaw_live_search_match_words (str, words))
1028     return TRUE;
1029
1030   personas = folks_individual_get_personas (individual);
1031
1032   /* check contact id, remove the @server.com part */
1033   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
1034   while (retval == FALSE && gee_iterator_next (iter))
1035     {
1036       FolksPersona *persona = gee_iterator_get (iter);
1037       const gchar *p;
1038
1039       if (empathy_folks_persona_is_interesting (persona))
1040         {
1041           str = folks_persona_get_display_id (persona);
1042
1043           /* Accept the persona if @text is a full prefix of his ID; that allows
1044            * user to find, say, a jabber contact by typing his JID. */
1045           if (g_str_has_prefix (str, text))
1046             {
1047               retval = TRUE;
1048             }
1049           else
1050             {
1051               gchar *dup_str = NULL;
1052               gboolean visible;
1053
1054               p = strstr (str, "@");
1055               if (p != NULL)
1056                 str = dup_str = g_strndup (str, p - str);
1057
1058               visible = tpaw_live_search_match_words (str, words);
1059               g_free (dup_str);
1060               if (visible)
1061                 retval = TRUE;
1062             }
1063         }
1064       g_clear_object (&persona);
1065     }
1066   g_clear_object (&iter);
1067
1068   /* FIXME: Add more rules here, we could check phone numbers in
1069    * contact's vCard for example. */
1070   return retval;
1071 }
1072
1073 void
1074 empathy_launch_program (const gchar *dir,
1075     const gchar *name,
1076     const gchar *args)
1077 {
1078   GdkDisplay *display;
1079   GError *error = NULL;
1080   gchar *path, *cmd;
1081   GAppInfo *app_info;
1082   GdkAppLaunchContext *context = NULL;
1083
1084   /* Try to run from source directory if possible */
1085   path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), "src",
1086       name, NULL);
1087
1088   if (!g_file_test (path, G_FILE_TEST_EXISTS))
1089     {
1090       g_free (path);
1091       path = g_build_filename (dir, name, NULL);
1092     }
1093
1094   if (args != NULL)
1095     cmd = g_strconcat (path, " ", args, NULL);
1096   else
1097     cmd = g_strdup (path);
1098
1099   app_info = g_app_info_create_from_commandline (cmd, NULL, 0, &error);
1100   if (app_info == NULL)
1101     {
1102       DEBUG ("Failed to create app info: %s", error->message);
1103       g_error_free (error);
1104       goto out;
1105     }
1106
1107   display = gdk_display_get_default ();
1108   context = gdk_display_get_app_launch_context (display);
1109
1110   if (!g_app_info_launch (app_info, NULL, (GAppLaunchContext *) context,
1111       &error))
1112     {
1113       g_warning ("Failed to launch %s: %s", name, error->message);
1114       g_error_free (error);
1115       goto out;
1116     }
1117
1118 out:
1119   tp_clear_object (&app_info);
1120   tp_clear_object (&context);
1121   g_free (path);
1122   g_free (cmd);
1123 }
1124
1125 /* Most of the workspace manipulation code has been copied from libwnck
1126  * Copyright (C) 2001 Havoc Pennington
1127  * Copyright (C) 2005-2007 Vincent Untz
1128  */
1129 static void
1130 _wnck_activate_workspace (Screen *screen,
1131     int new_active_space,
1132     Time timestamp)
1133 {
1134   Display *display;
1135   Window root;
1136   XEvent xev;
1137
1138   display = DisplayOfScreen (screen);
1139   root = RootWindowOfScreen (screen);
1140
1141   xev.xclient.type = ClientMessage;
1142   xev.xclient.serial = 0;
1143   xev.xclient.send_event = True;
1144   xev.xclient.display = display;
1145   xev.xclient.window = root;
1146   xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_NET_CURRENT_DESKTOP");
1147   xev.xclient.format = 32;
1148   xev.xclient.data.l[0] = new_active_space;
1149   xev.xclient.data.l[1] = timestamp;
1150   xev.xclient.data.l[2] = 0;
1151   xev.xclient.data.l[3] = 0;
1152   xev.xclient.data.l[4] = 0;
1153
1154   gdk_error_trap_push ();
1155   XSendEvent (display, root, False,
1156       SubstructureRedirectMask | SubstructureNotifyMask,
1157       &xev);
1158   XSync (display, False);
1159   gdk_error_trap_pop_ignored ();
1160 }
1161
1162 static gboolean
1163 _wnck_get_cardinal (Screen *screen,
1164     Window xwindow,
1165     Atom atom,
1166     int *val)
1167 {
1168   Display *display;
1169   Atom type;
1170   int format;
1171   gulong nitems;
1172   gulong bytes_after;
1173   gulong *num;
1174   int err, result;
1175
1176   display = DisplayOfScreen (screen);
1177
1178   *val = 0;
1179
1180   gdk_error_trap_push ();
1181   type = None;
1182   result = XGetWindowProperty (display, xwindow, atom,
1183       0, G_MAXLONG, False, XA_CARDINAL, &type, &format, &nitems,
1184       &bytes_after, (void *) &num);
1185   err = gdk_error_trap_pop ();
1186   if (err != Success ||
1187       result != Success)
1188     return FALSE;
1189
1190   if (type != XA_CARDINAL)
1191     {
1192       XFree (num);
1193       return FALSE;
1194     }
1195
1196   *val = *num;
1197
1198   XFree (num);
1199
1200   return TRUE;
1201 }
1202
1203 static int
1204 window_get_workspace (Screen *xscreen,
1205     Window win)
1206 {
1207   int number;
1208
1209   if (!_wnck_get_cardinal (xscreen, win,
1210         gdk_x11_get_xatom_by_name ("_NET_WM_DESKTOP"), &number))
1211     return -1;
1212
1213   return number;
1214 }
1215
1216 /* Ask X to move to the desktop on which @window currently is
1217  * and the present @window. */
1218 void
1219 empathy_move_to_window_desktop (GtkWindow *window,
1220     guint32 timestamp)
1221 {
1222   GdkScreen *screen;
1223   Screen *xscreen;
1224   GdkWindow *gdk_window;
1225   int workspace;
1226
1227   screen = gtk_window_get_screen (window);
1228   xscreen = gdk_x11_screen_get_xscreen (screen);
1229   gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
1230
1231   workspace = window_get_workspace (xscreen,
1232       gdk_x11_window_get_xid (gdk_window));
1233   if (workspace == -1)
1234     goto out;
1235
1236   _wnck_activate_workspace (xscreen, workspace, timestamp);
1237
1238 out:
1239   gtk_window_present_with_time (window, timestamp);
1240 }
1241
1242 void
1243 empathy_set_css_provider (GtkWidget *widget)
1244 {
1245   GtkCssProvider *provider;
1246   gchar *filename;
1247   GError *error = NULL;
1248   GdkScreen *screen;
1249
1250   filename = empathy_file_lookup ("empathy.css", "data");
1251
1252   provider = gtk_css_provider_new ();
1253
1254   if (!gtk_css_provider_load_from_path (provider, filename, &error))
1255     {
1256       g_warning ("Failed to load css file '%s': %s", filename, error->message);
1257       g_error_free (error);
1258       goto out;
1259     }
1260
1261   if (widget != NULL)
1262     screen = gtk_widget_get_screen (widget);
1263   else
1264     screen = gdk_screen_get_default ();
1265
1266   gtk_style_context_add_provider_for_screen (screen,
1267       GTK_STYLE_PROVIDER (provider),
1268       GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
1269
1270 out:
1271   g_free (filename);
1272   g_object_unref (provider);
1273 }
1274
1275 static gboolean
1276 launch_app_info (GAppInfo *app_info,
1277     GError **error)
1278 {
1279   GdkAppLaunchContext *context = NULL;
1280   GdkDisplay *display;
1281   GError *err = NULL;
1282
1283   display = gdk_display_get_default ();
1284   context = gdk_display_get_app_launch_context (display);
1285
1286   if (!g_app_info_launch (app_info, NULL, (GAppLaunchContext *) context,
1287         &err))
1288     {
1289       DEBUG ("Failed to launch %s: %s",
1290           g_app_info_get_display_name (app_info), err->message);
1291       g_propagate_error (error, err);
1292       return FALSE;
1293     }
1294
1295   tp_clear_object (&context);
1296   return TRUE;
1297 }
1298
1299 gboolean
1300 empathy_launch_external_app (const gchar *desktop_file,
1301     const gchar *args,
1302     GError **error)
1303 {
1304   GDesktopAppInfo *desktop_info;
1305   gboolean result;
1306   GError *err = NULL;
1307
1308   desktop_info = g_desktop_app_info_new (desktop_file);
1309   if (desktop_info == NULL)
1310     {
1311       DEBUG ("%s not found", desktop_file);
1312
1313       g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1314           "%s not found", desktop_file);
1315       return FALSE;
1316     }
1317
1318   if (args == NULL)
1319     {
1320       result = launch_app_info (G_APP_INFO (desktop_info), error);
1321     }
1322   else
1323     {
1324       gchar *cmd;
1325       GAppInfo *app_info;
1326
1327       /* glib doesn't have API to start a desktop file with args... (#637875) */
1328       cmd = g_strdup_printf ("%s %s", g_app_info_get_commandline (
1329             (GAppInfo *) desktop_info), args);
1330
1331       app_info = g_app_info_create_from_commandline (cmd, NULL, 0, &err);
1332       if (app_info == NULL)
1333         {
1334           DEBUG ("Failed to launch '%s': %s", cmd, err->message);
1335           g_free (cmd);
1336           g_object_unref (desktop_info);
1337           g_propagate_error (error, err);
1338           return FALSE;
1339         }
1340
1341       result = launch_app_info (app_info, error);
1342
1343       g_object_unref (app_info);
1344       g_free (cmd);
1345     }
1346
1347   g_object_unref (desktop_info);
1348   return result;
1349 }