git.maemo.org Git - modest/blob - src/widgets/modest-attachment-view.c

   1 /* Copyright (c) 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <glib/gi18n.h>
  35
  36 #include <string.h>
  37 #include <modest-attachment-view.h>
  38 #include <modest-platform.h>
  39 #include <modest-text-utils.h>
  40 #include <tny-msg.h>
  41 #include <modest-mail-operation.h>
  42 #include <modest-mail-operation-queue.h>
  43 #include <modest-runtime.h>
  44 #include <modest-count-stream.h>
  45
  46 #define GET_SIZE_BUFFER_SIZE 128
  47
  48 static GObjectClass *parent_class = NULL;
  49
  50 typedef struct _ModestAttachmentViewPrivate ModestAttachmentViewPrivate;
  51
  52 struct _ModestAttachmentViewPrivate
  53 {
  54         TnyMimePart *mime_part;
  55
  56         GtkWidget *icon;
  57         GtkWidget *filename_view;
  58         GtkWidget *size_view;
  59
  60         gboolean detect_size;
  61         TnyStream *get_size_stream;
  62         guint64 size;
  63
  64         PangoLayout *layout_full_filename;
  65         gboolean is_purged;
  66
  67 };
  68
  69 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
  70
  71 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
  72         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPrivate))
  73
  74 /* TnyMimePartView functions */
  75 static TnyMimePart *modest_attachment_view_get_part (TnyMimePartView *self);
  76 static TnyMimePart *modest_attachment_view_get_part_default (TnyMimePartView *self);
  77 static void modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part);
  78 static void modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part);
  79 static void modest_attachment_view_clear (TnyMimePartView *self);
  80 static void modest_attachment_view_clear_default (TnyMimePartView *self);
  81
  82 /* Gtk events */
  83 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
  84
  85 /* GObject and GInterface management */
  86 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
  87 static void modest_attachment_view_finalize (GObject *object);
  88 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
  89 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
  90
  91
  92
  93 static void update_filename_request (ModestAttachmentView *self);
  94
  95 static void update_size_label (ModestAttachmentView *self)
  96 {
  97         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
  98         gchar *size_str;
  99         gchar *label_text;
 100
 101         size_str = modest_text_utils_get_display_size (priv->size);
 102         label_text = g_strdup_printf (" (%s)", size_str);
 103         g_free (size_str);
 104         gtk_label_set_text (GTK_LABEL (priv->size_view), label_text);
 105         g_free (label_text);
 106 }
 107
 108 static gboolean
 109 idle_get_mime_part_size_cb (gpointer userdata)
 110 {
 111         ModestAttachmentView *view = (ModestAttachmentView *) userdata;
 112         gdk_threads_enter ();
 113
 114         if (GTK_WIDGET_VISIBLE (view)) {
 115                 update_size_label (view);
 116         }
 117
 118         gdk_threads_leave ();
 119
 120         g_object_unref (view);
 121
 122         return FALSE;
 123 }
 124
 125 static gpointer
 126 get_mime_part_size_thread (gpointer thr_user_data)
 127 {
 128         ModestAttachmentView *view =  (ModestAttachmentView *) thr_user_data;
 129         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (view);
 130         gsize total = 0;
 131         gssize result = 0;
 132
 133         result = tny_mime_part_decode_to_stream (priv->mime_part, priv->get_size_stream, NULL);
 134         total = modest_count_stream_get_count(MODEST_COUNT_STREAM (priv->get_size_stream));
 135         if (total == 0) {
 136                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (priv->get_size_stream));
 137                 result = tny_mime_part_write_to_stream (priv->mime_part, priv->get_size_stream, NULL);
 138                 total = modest_count_stream_get_count(MODEST_COUNT_STREAM (priv->get_size_stream));
 139         }
 140
 141         /* if there was an error, don't set the size (this is pretty uncommon) */
 142         if (result < 0) {
 143                 g_warning ("%s: error while writing mime part to stream\n", __FUNCTION__);
 144         } else {
 145                 priv->size = (guint64)total;
 146                 g_idle_add (idle_get_mime_part_size_cb, g_object_ref (view));
 147         }
 148         g_object_unref (view);
 149
 150         return NULL;
 151 }
 152
 153 void
 154 modest_attachment_view_set_detect_size (ModestAttachmentView *self, gboolean detect_size)
 155 {
 156         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 157
 158         priv->detect_size = detect_size;
 159
 160 }
 161
 162 void
 163 modest_attachment_view_set_size (ModestAttachmentView *self, guint64 size)
 164 {
 165         ModestAttachmentViewPrivate *priv;
 166
 167         g_return_if_fail (MODEST_IS_ATTACHMENT_VIEW (self));
 168         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 169
 170         if (!priv->detect_size) {
 171                 priv->size = size;
 172                 update_size_label (self);
 173         } else {
 174                 g_assert ("Shouldn't set the size of the attachment view if detect size is enabled");
 175         }
 176 }
 177
 178 guint64
 179 modest_attachment_view_get_size (ModestAttachmentView *self)
 180 {
 181         ModestAttachmentViewPrivate *priv;
 182
 183         g_return_val_if_fail (MODEST_IS_ATTACHMENT_VIEW (self), 0);
 184         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 185
 186         return priv->size;
 187 }
 188
 189 static TnyMimePart *
 190 modest_attachment_view_get_part (TnyMimePartView *self)
 191 {
 192         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
 193 }
 194
 195 static TnyMimePart *
 196 modest_attachment_view_get_part_default (TnyMimePartView *self)
 197 {
 198         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 199
 200         if (priv->mime_part)
 201                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 202         else
 203                 return NULL;
 204 }
 205
 206 static void
 207 update_filename_request (ModestAttachmentView *self)
 208 {
 209         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 210         /* gint width, height; */
 211
 212         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 213                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 214
 215
 216 }
 217
 218 static void
 219 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 220 {
 221         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 222         return;
 223 }
 224
 225
 226 static void
 227 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 228 {
 229         ModestAttachmentViewPrivate *priv = NULL;
 230         gchar *filename = NULL;
 231         gchar *file_icon_name = NULL;
 232         gboolean show_size = FALSE;
 233
 234         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 235         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 236         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 237
 238         if (priv->mime_part != NULL) {
 239                 g_object_unref (priv->mime_part);
 240         }
 241
 242         priv->mime_part = g_object_ref (mime_part);
 243
 244         priv->size = 0;
 245         priv->is_purged = tny_mime_part_is_purged (mime_part);
 246
 247         if (TNY_IS_MSG (mime_part)) {
 248                 TnyHeader *header = tny_msg_get_header (TNY_MSG (mime_part));
 249                 if (TNY_IS_HEADER (header)) {
 250                         filename = g_strdup (tny_header_get_subject (header));
 251                         if (filename == NULL || filename[0] == '\0')
 252                                 filename = g_strdup (_("mail_va_no_subject"));
 253                         if (priv->is_purged)
 254                                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 255                         else
 256                                 file_icon_name =
 257                                         modest_platform_get_file_icon_name (
 258                                                 NULL, tny_mime_part_get_content_type (mime_part), NULL);
 259                         g_object_unref (header);
 260                 }
 261         } else {
 262                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
 263                 if (priv->is_purged) {
 264                         file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 265                 } else {
 266                         file_icon_name = modest_platform_get_file_icon_name (
 267                                 filename, tny_mime_part_get_content_type (mime_part), NULL);
 268                         show_size = TRUE;
 269                 }
 270         }
 271
 272         if (file_icon_name) {
 273                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 274                 g_free (file_icon_name);
 275         } else {
 276                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 277         }
 278
 279         if (priv->is_purged) {
 280                 gchar * label_str = g_markup_printf_escaped(
 281                         "<span style='italic' foreground='grey'>%s</span>",
 282                         filename);
 283                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
 284                 g_free (label_str);
 285         } else {
 286                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 287         }
 288         g_free (filename);
 289         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 290
 291         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
 292
 293         if (show_size && priv->detect_size) {
 294                 g_object_ref (self);
 295                 if (!priv->get_size_stream)
 296                         priv->get_size_stream = modest_count_stream_new ();
 297                 g_thread_create (get_mime_part_size_thread, self, FALSE, NULL);
 298         }
 299
 300         gtk_widget_queue_draw (GTK_WIDGET (self));
 301 }
 302
 303 static void
 304 modest_attachment_view_clear (TnyMimePartView *self)
 305 {
 306         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 307         return;
 308 }
 309
 310 static void
 311 modest_attachment_view_clear_default (TnyMimePartView *self)
 312 {
 313         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 314
 315         if (priv->mime_part != NULL) {
 316                 g_object_unref (priv->mime_part);
 317                 priv->mime_part = NULL;
 318         }
 319
 320         if (priv->get_size_stream)
 321                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (priv->get_size_stream));
 322
 323         priv->size = 0;
 324
 325         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 326                                       UNKNOWN_FILE_ICON,
 327                                       GTK_ICON_SIZE_MENU);
 328         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 329         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 330         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 331
 332         gtk_widget_queue_draw (GTK_WIDGET (self));
 333 }
 334
 335
 336 /**
 337  * modest_attachment_view_new:
 338  * @mime_part: a #TnyMimePart
 339  *
 340  * Constructor for attachment view widget.
 341  *
 342  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 343  **/
 344 GtkWidget*
 345 modest_attachment_view_new (TnyMimePart *mime_part, gboolean detect_size)
 346 {
 347         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 348                                                    NULL);
 349
 350         modest_attachment_view_set_detect_size (self, detect_size);
 351
 352         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 353
 354         return GTK_WIDGET (self);
 355 }
 356
 357 static void
 358 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 359 {
 360         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 361         PangoContext *context;
 362         GtkWidget *box = NULL;
 363
 364         priv->mime_part = NULL;
 365         priv->icon = gtk_image_new ();
 366         priv->filename_view = gtk_label_new ("");
 367         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 368         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 369         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 370         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
 371         priv->size_view = gtk_label_new (" ");
 372         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 373         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
 374         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 375         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 376
 377         priv->get_size_stream = NULL;
 378         priv->size = 0;
 379         priv->detect_size = TRUE;
 380
 381         box = gtk_hbox_new (FALSE, 0);
 382         gtk_box_pack_start (GTK_BOX (box), priv->icon, FALSE, FALSE, 0);
 383         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
 384         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
 385         gtk_container_add (GTK_CONTAINER (instance), box);
 386
 387 /*      gtk_widget_get_style */
 388 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
 389
 390         context = gtk_widget_get_pango_context (priv->filename_view);
 391         priv->layout_full_filename = pango_layout_new (context);
 392
 393         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 394
 395         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
 396         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
 397         gtk_widget_set_events (GTK_WIDGET (instance), 0);
 398
 399         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
 400
 401         return;
 402 }
 403
 404 static void
 405 modest_attachment_view_finalize (GObject *object)
 406 {
 407         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 408
 409         if (priv->get_size_stream != NULL) {
 410                 g_object_unref (priv->get_size_stream);
 411                 priv->get_size_stream = NULL;
 412         }
 413
 414         if (G_LIKELY (priv->mime_part)) {
 415                 g_object_unref (G_OBJECT (priv->mime_part));
 416                 priv->mime_part = NULL;
 417         }
 418
 419         (*parent_class->finalize) (object);
 420
 421         return;
 422 }
 423
 424 static void
 425 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 426 {
 427         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 428         gint width, width_diff;
 429
 430         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 431         pango_layout_set_font_description (priv->layout_full_filename, pango_context_get_font_description(pango_layout_get_context (gtk_label_get_layout (GTK_LABEL (priv->filename_view)))));
 432
 433         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 434         width_diff = priv->filename_view->allocation.width - width;
 435         if (width_diff > 0) {
 436                 GtkAllocation filename_alloc, filesize_alloc;
 437                 filename_alloc = priv->filename_view->allocation;
 438                 filesize_alloc = priv->size_view->allocation;
 439                 filename_alloc.width -= width_diff;
 440                 filesize_alloc.width += width_diff;
 441                 filesize_alloc.x -= width_diff;
 442                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 443                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 444         }
 445
 446 }
 447
 448
 449 static void
 450 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 451 {
 452         GObjectClass *object_class;
 453         GtkWidgetClass *widget_class;
 454
 455         parent_class = g_type_class_peek_parent (klass);
 456         object_class = (GObjectClass*) klass;
 457         widget_class = GTK_WIDGET_CLASS (klass);
 458
 459         object_class->finalize = modest_attachment_view_finalize;
 460
 461         klass->get_part_func = modest_attachment_view_get_part_default;
 462         klass->set_part_func = modest_attachment_view_set_part_default;
 463         klass->clear_func = modest_attachment_view_clear_default;
 464
 465         widget_class->size_allocate = size_allocate;
 466
 467         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPrivate));
 468
 469         return;
 470 }
 471
 472 static void
 473 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 474 {
 475         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 476
 477         klass->get_part = modest_attachment_view_get_part;
 478         klass->set_part = modest_attachment_view_set_part;
 479         klass->clear = modest_attachment_view_clear;
 480
 481         return;
 482 }
 483
 484 GType
 485 modest_attachment_view_get_type (void)
 486 {
 487         static GType type = 0;
 488
 489         if (G_UNLIKELY(type == 0))
 490         {
 491                 static const GTypeInfo info =
 492                 {
 493                   sizeof (ModestAttachmentViewClass),
 494                   NULL,   /* base_init */
 495                   NULL,   /* base_finalize */
 496                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 497                   NULL,   /* class_finalize */
 498                   NULL,   /* class_data */
 499                   sizeof (ModestAttachmentView),
 500                   0,      /* n_preallocs */
 501                   modest_attachment_view_instance_init    /* instance_init */
 502                 };
 503
 504                 static const GInterfaceInfo tny_mime_part_view_info =
 505                 {
 506                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 507                         NULL,        /* interface_finalize */
 508                         NULL         /* interface_data */
 509                 };
 510
 511                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 512                         "ModestAttachmentView",
 513                         &info, 0);
 514
 515                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 516                                              &tny_mime_part_view_info);
 517
 518         }
 519
 520         return type;
 521 }