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 <tny-camel-mem-stream.h>
  42 #include <modest-mail-operation.h>
  43 #include <modest-mail-operation-queue.h>
  44 #include <modest-runtime.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         guint get_size_idle_id;
  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
  96 static gboolean
  97 idle_get_mime_part_size_cb (gpointer userdata)
  98 {
  99         ModestAttachmentView *view = (ModestAttachmentView *) userdata;
 100         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (view);
 101         gchar *size_str;
 102         gchar *label_text;
 103         gdk_threads_enter ();
 104
 105         if (GTK_WIDGET_VISIBLE (view)) {
 106                 size_str = modest_text_utils_get_display_size (priv->size);
 107                 label_text = g_strdup_printf (" (%s)", size_str);
 108                 g_free (size_str);
 109                 gtk_label_set_text (GTK_LABEL (priv->size_view), label_text);
 110                 g_free (label_text);
 111         }
 112
 113         gdk_threads_leave ();
 114
 115         g_object_unref (view);
 116
 117         return FALSE;
 118 }
 119
 120 static gpointer
 121 get_mime_part_size_thread (gpointer thr_user_data)
 122 {
 123         ModestAttachmentView *view =  (ModestAttachmentView *) thr_user_data;
 124         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (view);
 125         gchar read_buffer[GET_SIZE_BUFFER_SIZE];
 126         TnyStream *stream;
 127         gssize readed_size;
 128         gssize total = 0;
 129
 130         stream = tny_camel_mem_stream_new ();
 131         tny_mime_part_decode_to_stream (priv->mime_part, stream);
 132         tny_stream_reset (stream);
 133         if (tny_stream_is_eos (stream)) {
 134                 tny_stream_close (stream);
 135                 stream = tny_mime_part_get_stream (priv->mime_part);
 136         }
 137
 138         while (!tny_stream_is_eos (stream)) {
 139                 readed_size = tny_stream_read (stream, read_buffer, GET_SIZE_BUFFER_SIZE);
 140                 total += readed_size;
 141         }
 142
 143         priv->size = total;
 144
 145         g_idle_add (idle_get_mime_part_size_cb, g_object_ref (view));
 146
 147         g_object_unref (stream);
 148         g_object_unref (view);
 149
 150         return NULL;
 151 }
 152
 153 static TnyMimePart *
 154 modest_attachment_view_get_part (TnyMimePartView *self)
 155 {
 156         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
 157 }
 158
 159 static TnyMimePart *
 160 modest_attachment_view_get_part_default (TnyMimePartView *self)
 161 {
 162         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 163
 164         if (priv->mime_part)
 165                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 166         else
 167                 return NULL;
 168 }
 169
 170 static void
 171 update_filename_request (ModestAttachmentView *self)
 172 {
 173         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 174         /* gint width, height; */
 175
 176         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 177                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 178
 179
 180 }
 181
 182 static void
 183 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 184 {
 185         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 186         return;
 187 }
 188
 189
 190 static void
 191 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 192 {
 193         ModestAttachmentViewPrivate *priv = NULL;
 194         gchar *filename = NULL;
 195         gchar *file_icon_name = NULL;
 196         gboolean show_size = FALSE;
 197
 198         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 199         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 200         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 201
 202         if (priv->mime_part != NULL) {
 203                 g_object_unref (priv->mime_part);
 204         }
 205
 206         priv->mime_part = mime_part;
 207
 208         priv->size = 0;
 209         priv->is_purged = tny_mime_part_is_purged (mime_part);
 210
 211         if (TNY_IS_MSG (mime_part)) {
 212                 TnyHeader *header = tny_msg_get_header (TNY_MSG (mime_part));
 213                 if (TNY_IS_HEADER (header)) {
 214                         filename = g_strdup (tny_header_get_subject (header));
 215                         if (filename == NULL || filename[0] == '\0')
 216                                 filename = g_strdup (_("mail_va_no_subject"));
 217                         if (priv->is_purged)
 218                                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 219                         else
 220                                 file_icon_name =
 221                                         modest_platform_get_file_icon_name (
 222                                                 NULL, tny_mime_part_get_content_type (mime_part), NULL);
 223                         g_object_unref (header);
 224                 }
 225         } else {
 226                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
 227                 if (priv->is_purged) {
 228                         file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 229                 } else {
 230                         file_icon_name = modest_platform_get_file_icon_name (
 231                                 filename, tny_mime_part_get_content_type (mime_part), NULL);
 232                         show_size = TRUE;
 233                 }
 234         }
 235
 236         if (file_icon_name) {
 237                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 238                 g_free (file_icon_name);
 239         } else {
 240                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 241         }
 242
 243         if (priv->is_purged) {
 244                 gchar * label_str = g_markup_printf_escaped(
 245                         "<span style='italic' foreground='grey'>%s</span>",
 246                         filename);
 247                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
 248                 g_free (label_str);
 249         } else {
 250                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 251         }
 252         g_free (filename);
 253         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 254
 255         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
 256
 257         if (show_size) {
 258                 tny_camel_mem_stream_get_type ();
 259                 g_object_ref (self);
 260                 g_thread_create (get_mime_part_size_thread, self, FALSE, NULL);
 261         }
 262
 263         gtk_widget_queue_draw (GTK_WIDGET (self));
 264 }
 265
 266 static void
 267 modest_attachment_view_clear (TnyMimePartView *self)
 268 {
 269         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 270         return;
 271 }
 272
 273 static void
 274 modest_attachment_view_clear_default (TnyMimePartView *self)
 275 {
 276         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 277
 278         if (priv->mime_part != NULL) {
 279                 g_object_unref (priv->mime_part);
 280                 priv->mime_part = NULL;
 281         }
 282
 283         if (priv->get_size_idle_id != 0) {
 284                 g_source_remove (priv->get_size_idle_id);
 285                 priv->get_size_idle_id = 0;
 286         }
 287
 288         if (priv->get_size_stream != NULL) {
 289                 g_object_unref (priv->get_size_stream);
 290                 priv->get_size_stream = NULL;
 291         }
 292
 293         priv->size = 0;
 294
 295         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 296                                       UNKNOWN_FILE_ICON,
 297                                       GTK_ICON_SIZE_MENU);
 298         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 299         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 300         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 301
 302         gtk_widget_queue_draw (GTK_WIDGET (self));
 303 }
 304
 305
 306 /**
 307  * modest_attachment_view_new:
 308  * @mime_part: a #TnyMimePart
 309  *
 310  * Constructor for attachment view widget.
 311  *
 312  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 313  **/
 314 GtkWidget*
 315 modest_attachment_view_new (TnyMimePart *mime_part)
 316 {
 317         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 318                                                    NULL);
 319
 320         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 321
 322         return GTK_WIDGET (self);
 323 }
 324
 325 static void
 326 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 327 {
 328         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 329         PangoContext *context;
 330         GtkWidget *box = NULL;
 331
 332         priv->mime_part = NULL;
 333         priv->icon = gtk_image_new ();
 334         priv->filename_view = gtk_label_new ("");
 335         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 336         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 337         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 338         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
 339         priv->size_view = gtk_label_new (" ");
 340         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 341         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
 342         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 343         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 344
 345         priv->get_size_idle_id = 0;
 346         priv->get_size_stream = NULL;
 347         priv->size = 0;
 348
 349         box = gtk_hbox_new (FALSE, 0);
 350         gtk_box_pack_start (GTK_BOX (box), priv->icon, FALSE, FALSE, 0);
 351         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
 352         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
 353         gtk_container_add (GTK_CONTAINER (instance), box);
 354
 355 /*      gtk_widget_get_style */
 356 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
 357
 358         context = gtk_widget_get_pango_context (priv->filename_view);
 359         priv->layout_full_filename = pango_layout_new (context);
 360
 361         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 362
 363         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
 364         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
 365         gtk_widget_set_events (GTK_WIDGET (instance), 0);
 366
 367         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
 368
 369         return;
 370 }
 371
 372 static void
 373 modest_attachment_view_finalize (GObject *object)
 374 {
 375         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 376
 377         if (priv->get_size_idle_id) {
 378                 g_source_remove (priv->get_size_idle_id);
 379                 priv->get_size_idle_id = 0;
 380         }
 381
 382         if (priv->get_size_stream != NULL) {
 383                 g_object_unref (priv->get_size_stream);
 384                 priv->get_size_stream = NULL;
 385         }
 386
 387         if (G_LIKELY (priv->mime_part)) {
 388                 g_object_unref (G_OBJECT (priv->mime_part));
 389                 priv->mime_part = NULL;
 390         }
 391
 392         (*parent_class->finalize) (object);
 393
 394         return;
 395 }
 396
 397 static void
 398 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 399 {
 400         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 401         gint width, width_diff;
 402
 403         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 404         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)))));
 405
 406         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 407         width_diff = priv->filename_view->allocation.width - width;
 408         if (width_diff > 0) {
 409                 GtkAllocation filename_alloc, filesize_alloc;
 410                 filename_alloc = priv->filename_view->allocation;
 411                 filesize_alloc = priv->size_view->allocation;
 412                 filename_alloc.width -= width_diff;
 413                 filesize_alloc.width += width_diff;
 414                 filesize_alloc.x -= width_diff;
 415                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 416                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 417         }
 418
 419 }
 420
 421
 422 static void
 423 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 424 {
 425         GObjectClass *object_class;
 426         GtkWidgetClass *widget_class;
 427
 428         parent_class = g_type_class_peek_parent (klass);
 429         object_class = (GObjectClass*) klass;
 430         widget_class = GTK_WIDGET_CLASS (klass);
 431
 432         object_class->finalize = modest_attachment_view_finalize;
 433
 434         klass->get_part_func = modest_attachment_view_get_part_default;
 435         klass->set_part_func = modest_attachment_view_set_part_default;
 436         klass->clear_func = modest_attachment_view_clear_default;
 437
 438         widget_class->size_allocate = size_allocate;
 439
 440         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPrivate));
 441
 442         return;
 443 }
 444
 445 static void
 446 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 447 {
 448         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 449
 450         klass->get_part_func = modest_attachment_view_get_part;
 451         klass->set_part_func = modest_attachment_view_set_part;
 452         klass->clear_func = modest_attachment_view_clear;
 453
 454         return;
 455 }
 456
 457 GType
 458 modest_attachment_view_get_type (void)
 459 {
 460         static GType type = 0;
 461
 462         if (G_UNLIKELY(type == 0))
 463         {
 464                 static const GTypeInfo info =
 465                 {
 466                   sizeof (ModestAttachmentViewClass),
 467                   NULL,   /* base_init */
 468                   NULL,   /* base_finalize */
 469                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 470                   NULL,   /* class_finalize */
 471                   NULL,   /* class_data */
 472                   sizeof (ModestAttachmentView),
 473                   0,      /* n_preallocs */
 474                   modest_attachment_view_instance_init    /* instance_init */
 475                 };
 476
 477                 static const GInterfaceInfo tny_mime_part_view_info =
 478                 {
 479                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 480                         NULL,        /* interface_finalize */
 481                         NULL         /* interface_data */
 482                 };
 483
 484                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 485                         "ModestAttachmentView",
 486                         &info, 0);
 487
 488                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 489                                              &tny_mime_part_view_info);
 490
 491         }
 492
 493         return type;
 494 }