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_mime_part_get_filename (mime_part));
 251                         if (!filename)
 252                                 filename = tny_header_dup_subject (header);
 253                         if (filename == NULL || filename[0] == '\0')
 254                                 filename = g_strdup (_("mail_va_no_subject"));
 255                         if (priv->is_purged)
 256                                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 257                         else
 258                                 file_icon_name =
 259                                         modest_platform_get_file_icon_name (
 260                                                 NULL, tny_mime_part_get_content_type (mime_part), NULL);
 261                         g_object_unref (header);
 262                 }
 263         } else {
 264                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
 265                 if (priv->is_purged) {
 266                         file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 267                 } else {
 268                         file_icon_name = modest_platform_get_file_icon_name (
 269                                 filename, tny_mime_part_get_content_type (mime_part), NULL);
 270                         show_size = TRUE;
 271                 }
 272         }
 273
 274         if (file_icon_name) {
 275                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 276                 g_free (file_icon_name);
 277         } else {
 278                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 279         }
 280
 281         if (priv->is_purged) {
 282                 gchar * label_str = g_markup_printf_escaped(
 283                         "<span style='italic' foreground='grey'>%s</span>",
 284                         filename);
 285                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
 286                 g_free (label_str);
 287         } else {
 288                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 289         }
 290         g_free (filename);
 291         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 292
 293         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
 294
 295         if (show_size && priv->detect_size) {
 296                 g_object_ref (self);
 297                 if (!priv->get_size_stream)
 298                         priv->get_size_stream = modest_count_stream_new ();
 299                 g_thread_create (get_mime_part_size_thread, self, FALSE, NULL);
 300         }
 301
 302         gtk_widget_queue_draw (GTK_WIDGET (self));
 303 }
 304
 305 static void
 306 modest_attachment_view_clear (TnyMimePartView *self)
 307 {
 308         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 309         return;
 310 }
 311
 312 static void
 313 modest_attachment_view_clear_default (TnyMimePartView *self)
 314 {
 315         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 316
 317         if (priv->mime_part != NULL) {
 318                 g_object_unref (priv->mime_part);
 319                 priv->mime_part = NULL;
 320         }
 321
 322         if (priv->get_size_stream)
 323                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (priv->get_size_stream));
 324
 325         priv->size = 0;
 326
 327         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 328                                       UNKNOWN_FILE_ICON,
 329                                       GTK_ICON_SIZE_MENU);
 330         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 331         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 332         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 333
 334         gtk_widget_queue_draw (GTK_WIDGET (self));
 335 }
 336
 337
 338 /**
 339  * modest_attachment_view_new:
 340  * @mime_part: a #TnyMimePart
 341  *
 342  * Constructor for attachment view widget.
 343  *
 344  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 345  **/
 346 GtkWidget*
 347 modest_attachment_view_new (TnyMimePart *mime_part, gboolean detect_size)
 348 {
 349         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 350                                                    NULL);
 351
 352         modest_attachment_view_set_detect_size (self, detect_size);
 353
 354         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 355
 356         return GTK_WIDGET (self);
 357 }
 358
 359 static void
 360 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 361 {
 362         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 363         PangoContext *context;
 364         GtkWidget *box = NULL;
 365
 366         priv->mime_part = NULL;
 367         priv->icon = gtk_image_new ();
 368         priv->filename_view = gtk_label_new ("");
 369         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 370         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 371         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 372         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
 373         priv->size_view = gtk_label_new (" ");
 374         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 375         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
 376         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 377         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 378
 379         priv->get_size_stream = NULL;
 380         priv->size = 0;
 381         priv->detect_size = TRUE;
 382
 383         box = gtk_hbox_new (FALSE, 0);
 384         gtk_box_pack_start (GTK_BOX (box), priv->icon, FALSE, FALSE, 0);
 385         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
 386         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
 387         gtk_container_add (GTK_CONTAINER (instance), box);
 388
 389 /*      gtk_widget_get_style */
 390 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
 391
 392         context = gtk_widget_get_pango_context (priv->filename_view);
 393         priv->layout_full_filename = pango_layout_new (context);
 394
 395         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 396
 397         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
 398         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
 399         gtk_widget_set_events (GTK_WIDGET (instance), 0);
 400
 401         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
 402
 403         return;
 404 }
 405
 406 static void
 407 modest_attachment_view_finalize (GObject *object)
 408 {
 409         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 410
 411         if (priv->get_size_stream != NULL) {
 412                 g_object_unref (priv->get_size_stream);
 413                 priv->get_size_stream = NULL;
 414         }
 415
 416         if (G_LIKELY (priv->mime_part)) {
 417                 g_object_unref (G_OBJECT (priv->mime_part));
 418                 priv->mime_part = NULL;
 419         }
 420
 421         (*parent_class->finalize) (object);
 422
 423         return;
 424 }
 425
 426 static void
 427 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 428 {
 429         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 430         gint width, width_diff;
 431
 432         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 433         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)))));
 434
 435         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 436         width_diff = priv->filename_view->allocation.width - width;
 437         if (width_diff > 0) {
 438                 GtkAllocation filename_alloc, filesize_alloc;
 439                 filename_alloc = priv->filename_view->allocation;
 440                 filesize_alloc = priv->size_view->allocation;
 441                 filename_alloc.width -= width_diff;
 442                 filesize_alloc.width += width_diff;
 443                 filesize_alloc.x -= width_diff;
 444                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 445                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 446         }
 447
 448 }
 449
 450
 451 static void
 452 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 453 {
 454         GObjectClass *object_class;
 455         GtkWidgetClass *widget_class;
 456
 457         parent_class = g_type_class_peek_parent (klass);
 458         object_class = (GObjectClass*) klass;
 459         widget_class = GTK_WIDGET_CLASS (klass);
 460
 461         object_class->finalize = modest_attachment_view_finalize;
 462
 463         klass->get_part_func = modest_attachment_view_get_part_default;
 464         klass->set_part_func = modest_attachment_view_set_part_default;
 465         klass->clear_func = modest_attachment_view_clear_default;
 466
 467         widget_class->size_allocate = size_allocate;
 468
 469         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPrivate));
 470
 471         return;
 472 }
 473
 474 static void
 475 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 476 {
 477         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 478
 479         klass->get_part = modest_attachment_view_get_part;
 480         klass->set_part = modest_attachment_view_set_part;
 481         klass->clear = modest_attachment_view_clear;
 482
 483         return;
 484 }
 485
 486 GType
 487 modest_attachment_view_get_type (void)
 488 {
 489         static GType type = 0;
 490
 491         if (G_UNLIKELY(type == 0))
 492         {
 493                 static const GTypeInfo info =
 494                 {
 495                   sizeof (ModestAttachmentViewClass),
 496                   NULL,   /* base_init */
 497                   NULL,   /* base_finalize */
 498                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 499                   NULL,   /* class_finalize */
 500                   NULL,   /* class_data */
 501                   sizeof (ModestAttachmentView),
 502                   0,      /* n_preallocs */
 503                   modest_attachment_view_instance_init    /* instance_init */
 504                 };
 505
 506                 static const GInterfaceInfo tny_mime_part_view_info =
 507                 {
 508                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 509                         NULL,        /* interface_finalize */
 510                         NULL         /* interface_data */
 511                 };
 512
 513                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 514                         "ModestAttachmentView",
 515                         &info, 0);
 516
 517                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 518                                              &tny_mime_part_view_info);
 519
 520         }
 521
 522         return type;
 523 }