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 #include <modest-count-stream.h>
  46
  47 #define GET_SIZE_BUFFER_SIZE 128
  48
  49 static GObjectClass *parent_class = NULL;
  50
  51 typedef struct _ModestAttachmentViewPrivate ModestAttachmentViewPrivate;
  52
  53 struct _ModestAttachmentViewPrivate
  54 {
  55         TnyMimePart *mime_part;
  56
  57         GtkWidget *icon;
  58         GtkWidget *filename_view;
  59         GtkWidget *size_view;
  60
  61         gboolean detect_size;
  62         TnyStream *get_size_stream;
  63         guint64 size;
  64
  65         PangoLayout *layout_full_filename;
  66         gboolean is_purged;
  67
  68 };
  69
  70 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
  71
  72 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
  73         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPrivate))
  74
  75 /* TnyMimePartView functions */
  76 static TnyMimePart *modest_attachment_view_get_part (TnyMimePartView *self);
  77 static TnyMimePart *modest_attachment_view_get_part_default (TnyMimePartView *self);
  78 static void modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part);
  79 static void modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part);
  80 static void modest_attachment_view_clear (TnyMimePartView *self);
  81 static void modest_attachment_view_clear_default (TnyMimePartView *self);
  82
  83 /* Gtk events */
  84 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
  85
  86 /* GObject and GInterface management */
  87 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
  88 static void modest_attachment_view_finalize (GObject *object);
  89 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
  90 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
  91
  92
  93
  94 static void update_filename_request (ModestAttachmentView *self);
  95
  96 static void update_size_label (ModestAttachmentView *self)
  97 {
  98         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
  99         gchar *size_str;
 100         gchar *label_text;
 101
 102         size_str = modest_text_utils_get_display_size (priv->size);
 103         label_text = g_strdup_printf (" (%s)", size_str);
 104         g_free (size_str);
 105         gtk_label_set_text (GTK_LABEL (priv->size_view), label_text);
 106         g_free (label_text);
 107 }
 108
 109 static gboolean
 110 idle_get_mime_part_size_cb (gpointer userdata)
 111 {
 112         ModestAttachmentView *view = (ModestAttachmentView *) userdata;
 113         gdk_threads_enter ();
 114
 115         if (GTK_WIDGET_VISIBLE (view)) {
 116                 update_size_label (view);
 117         }
 118
 119         gdk_threads_leave ();
 120
 121         g_object_unref (view);
 122
 123         return FALSE;
 124 }
 125
 126 static gpointer
 127 get_mime_part_size_thread (gpointer thr_user_data)
 128 {
 129         ModestAttachmentView *view =  (ModestAttachmentView *) thr_user_data;
 130         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (view);
 131         TnyStream *stream;
 132         gsize total = 0;
 133         gssize result = 0;
 134
 135         stream = modest_count_stream_new();
 136         result = tny_mime_part_decode_to_stream (priv->mime_part, stream, NULL);
 137         total = modest_count_stream_get_count(MODEST_COUNT_STREAM (stream));
 138         if (total == 0) {
 139                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (stream));
 140                 result = tny_mime_part_write_to_stream (priv->mime_part, stream, NULL);
 141                 total = modest_count_stream_get_count(MODEST_COUNT_STREAM (stream));
 142         }
 143
 144         /* if there was an error, don't set the size (this is pretty uncommon) */
 145         if (result < 0) {
 146                 g_warning ("%s: error while writing mime part to stream\n", __FUNCTION__);
 147         } else {
 148                 priv->size = (guint64)total;
 149                 g_idle_add (idle_get_mime_part_size_cb, g_object_ref (view));
 150         }
 151
 152         g_object_unref (stream);
 153         g_object_unref (view);
 154
 155         return NULL;
 156 }
 157
 158 void
 159 modest_attachment_view_set_detect_size (ModestAttachmentView *self, gboolean detect_size)
 160 {
 161         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 162
 163         priv->detect_size = detect_size;
 164
 165 }
 166
 167 void
 168 modest_attachment_view_set_size (ModestAttachmentView *self, guint64 size)
 169 {
 170         ModestAttachmentViewPrivate *priv;
 171
 172         g_return_if_fail (MODEST_IS_ATTACHMENT_VIEW (self));
 173         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 174
 175         if (!priv->detect_size) {
 176                 priv->size = size;
 177                 update_size_label (self);
 178         } else {
 179                 g_assert ("Shouldn't set the size of the attachment view if detect size is enabled");
 180         }
 181 }
 182
 183 guint64
 184 modest_attachment_view_get_size (ModestAttachmentView *self)
 185 {
 186         ModestAttachmentViewPrivate *priv;
 187
 188         g_return_val_if_fail (MODEST_IS_ATTACHMENT_VIEW (self), 0);
 189         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 190
 191         return priv->size;
 192 }
 193
 194 static TnyMimePart *
 195 modest_attachment_view_get_part (TnyMimePartView *self)
 196 {
 197         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
 198 }
 199
 200 static TnyMimePart *
 201 modest_attachment_view_get_part_default (TnyMimePartView *self)
 202 {
 203         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 204
 205         if (priv->mime_part)
 206                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 207         else
 208                 return NULL;
 209 }
 210
 211 static void
 212 update_filename_request (ModestAttachmentView *self)
 213 {
 214         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 215         /* gint width, height; */
 216
 217         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 218                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 219
 220
 221 }
 222
 223 static void
 224 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 225 {
 226         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 227         return;
 228 }
 229
 230
 231 static void
 232 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 233 {
 234         ModestAttachmentViewPrivate *priv = NULL;
 235         gchar *filename = NULL;
 236         gchar *file_icon_name = NULL;
 237         gboolean show_size = FALSE;
 238
 239         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 240         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 241         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 242
 243         if (priv->mime_part != NULL) {
 244                 g_object_unref (priv->mime_part);
 245         }
 246
 247         priv->mime_part = g_object_ref (mime_part);
 248
 249         priv->size = 0;
 250         priv->is_purged = tny_mime_part_is_purged (mime_part);
 251
 252         if (TNY_IS_MSG (mime_part)) {
 253                 TnyHeader *header = tny_msg_get_header (TNY_MSG (mime_part));
 254                 if (TNY_IS_HEADER (header)) {
 255                         filename = g_strdup (tny_header_get_subject (header));
 256                         if (filename == NULL || filename[0] == '\0')
 257                                 filename = g_strdup (_("mail_va_no_subject"));
 258                         if (priv->is_purged)
 259                                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 260                         else
 261                                 file_icon_name =
 262                                         modest_platform_get_file_icon_name (
 263                                                 NULL, tny_mime_part_get_content_type (mime_part), NULL);
 264                         g_object_unref (header);
 265                 }
 266         } else {
 267                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
 268                 if (priv->is_purged) {
 269                         file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 270                 } else {
 271                         file_icon_name = modest_platform_get_file_icon_name (
 272                                 filename, tny_mime_part_get_content_type (mime_part), NULL);
 273                         show_size = TRUE;
 274                 }
 275         }
 276
 277         if (file_icon_name) {
 278                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 279                 g_free (file_icon_name);
 280         } else {
 281                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 282         }
 283
 284         if (priv->is_purged) {
 285                 gchar * label_str = g_markup_printf_escaped(
 286                         "<span style='italic' foreground='grey'>%s</span>",
 287                         filename);
 288                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
 289                 g_free (label_str);
 290         } else {
 291                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 292         }
 293         g_free (filename);
 294         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 295
 296         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
 297
 298         if (show_size && priv->detect_size) {
 299                 tny_camel_mem_stream_get_type ();
 300                 g_object_ref (self);
 301                 g_thread_create (get_mime_part_size_thread, self, FALSE, NULL);
 302         }
 303
 304         gtk_widget_queue_draw (GTK_WIDGET (self));
 305 }
 306
 307 static void
 308 modest_attachment_view_clear (TnyMimePartView *self)
 309 {
 310         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 311         return;
 312 }
 313
 314 static void
 315 modest_attachment_view_clear_default (TnyMimePartView *self)
 316 {
 317         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 318
 319         if (priv->mime_part != NULL) {
 320                 g_object_unref (priv->mime_part);
 321                 priv->mime_part = NULL;
 322         }
 323
 324         if (priv->get_size_stream != NULL) {
 325                 g_object_unref (priv->get_size_stream);
 326                 priv->get_size_stream = NULL;
 327         }
 328
 329         priv->size = 0;
 330
 331         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 332                                       UNKNOWN_FILE_ICON,
 333                                       GTK_ICON_SIZE_MENU);
 334         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 335         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 336         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 337
 338         gtk_widget_queue_draw (GTK_WIDGET (self));
 339 }
 340
 341
 342 /**
 343  * modest_attachment_view_new:
 344  * @mime_part: a #TnyMimePart
 345  *
 346  * Constructor for attachment view widget.
 347  *
 348  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 349  **/
 350 GtkWidget*
 351 modest_attachment_view_new (TnyMimePart *mime_part, gboolean detect_size)
 352 {
 353         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 354                                                    NULL);
 355
 356         modest_attachment_view_set_detect_size (self, detect_size);
 357
 358         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 359
 360         return GTK_WIDGET (self);
 361 }
 362
 363 static void
 364 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 365 {
 366         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 367         PangoContext *context;
 368         GtkWidget *box = NULL;
 369
 370         priv->mime_part = NULL;
 371         priv->icon = gtk_image_new ();
 372         priv->filename_view = gtk_label_new ("");
 373         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 374         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 375         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 376         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
 377         priv->size_view = gtk_label_new (" ");
 378         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 379         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
 380         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 381         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 382
 383         priv->get_size_stream = NULL;
 384         priv->size = 0;
 385         priv->detect_size = TRUE;
 386
 387         box = gtk_hbox_new (FALSE, 0);
 388         gtk_box_pack_start (GTK_BOX (box), priv->icon, FALSE, FALSE, 0);
 389         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
 390         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
 391         gtk_container_add (GTK_CONTAINER (instance), box);
 392
 393 /*      gtk_widget_get_style */
 394 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
 395
 396         context = gtk_widget_get_pango_context (priv->filename_view);
 397         priv->layout_full_filename = pango_layout_new (context);
 398
 399         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 400
 401         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
 402         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
 403         gtk_widget_set_events (GTK_WIDGET (instance), 0);
 404
 405         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
 406
 407         return;
 408 }
 409
 410 static void
 411 modest_attachment_view_finalize (GObject *object)
 412 {
 413         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 414
 415         if (priv->get_size_stream != NULL) {
 416                 g_object_unref (priv->get_size_stream);
 417                 priv->get_size_stream = NULL;
 418         }
 419
 420         if (G_LIKELY (priv->mime_part)) {
 421                 g_object_unref (G_OBJECT (priv->mime_part));
 422                 priv->mime_part = NULL;
 423         }
 424
 425         (*parent_class->finalize) (object);
 426
 427         return;
 428 }
 429
 430 static void
 431 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 432 {
 433         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 434         gint width, width_diff;
 435
 436         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 437         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)))));
 438
 439         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 440         width_diff = priv->filename_view->allocation.width - width;
 441         if (width_diff > 0) {
 442                 GtkAllocation filename_alloc, filesize_alloc;
 443                 filename_alloc = priv->filename_view->allocation;
 444                 filesize_alloc = priv->size_view->allocation;
 445                 filename_alloc.width -= width_diff;
 446                 filesize_alloc.width += width_diff;
 447                 filesize_alloc.x -= width_diff;
 448                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 449                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 450         }
 451
 452 }
 453
 454
 455 static void
 456 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 457 {
 458         GObjectClass *object_class;
 459         GtkWidgetClass *widget_class;
 460
 461         parent_class = g_type_class_peek_parent (klass);
 462         object_class = (GObjectClass*) klass;
 463         widget_class = GTK_WIDGET_CLASS (klass);
 464
 465         object_class->finalize = modest_attachment_view_finalize;
 466
 467         klass->get_part_func = modest_attachment_view_get_part_default;
 468         klass->set_part_func = modest_attachment_view_set_part_default;
 469         klass->clear_func = modest_attachment_view_clear_default;
 470
 471         widget_class->size_allocate = size_allocate;
 472
 473         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPrivate));
 474
 475         return;
 476 }
 477
 478 static void
 479 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 480 {
 481         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 482
 483         klass->get_part_func = modest_attachment_view_get_part;
 484         klass->set_part_func = modest_attachment_view_set_part;
 485         klass->clear_func = modest_attachment_view_clear;
 486
 487         return;
 488 }
 489
 490 GType
 491 modest_attachment_view_get_type (void)
 492 {
 493         static GType type = 0;
 494
 495         if (G_UNLIKELY(type == 0))
 496         {
 497                 static const GTypeInfo info =
 498                 {
 499                   sizeof (ModestAttachmentViewClass),
 500                   NULL,   /* base_init */
 501                   NULL,   /* base_finalize */
 502                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 503                   NULL,   /* class_finalize */
 504                   NULL,   /* class_data */
 505                   sizeof (ModestAttachmentView),
 506                   0,      /* n_preallocs */
 507                   modest_attachment_view_instance_init    /* instance_init */
 508                 };
 509
 510                 static const GInterfaceInfo tny_mime_part_view_info =
 511                 {
 512                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 513                         NULL,        /* interface_finalize */
 514                         NULL         /* interface_data */
 515                 };
 516
 517                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 518                         "ModestAttachmentView",
 519                         &info, 0);
 520
 521                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 522                                              &tny_mime_part_view_info);
 523
 524         }
 525
 526         return type;
 527 }