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
  43 static GObjectClass *parent_class = NULL;
  44
  45 typedef struct _ModestAttachmentViewPriv ModestAttachmentViewPriv;
  46
  47 struct _ModestAttachmentViewPriv
  48 {
  49         TnyMimePart *mime_part;
  50
  51         GtkWidget *icon;
  52         GtkWidget *filename_view;
  53         GtkWidget *size_view;
  54
  55         guint get_size_idle_id;
  56         TnyStream *get_size_stream;
  57         guint64 size;
  58
  59         PangoLayout *layout_full_filename;
  60         gboolean is_purged;
  61
  62 };
  63
  64 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
  65 #define GET_SIZE_BUFFER_SIZE 128
  66
  67 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
  68         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPriv))
  69
  70 /* TnyMimePartView functions */
  71 static TnyMimePart *modest_attachment_view_get_part (TnyMimePartView *self);
  72 static TnyMimePart *modest_attachment_view_get_part_default (TnyMimePartView *self);
  73 static void modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part);
  74 static void modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part);
  75 static void modest_attachment_view_clear (TnyMimePartView *self);
  76 static void modest_attachment_view_clear_default (TnyMimePartView *self);
  77
  78 /* Gtk events */
  79 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
  80
  81 /* GObject and GInterface management */
  82 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
  83 static void modest_attachment_view_finalize (GObject *object);
  84 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
  85 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
  86
  87
  88
  89 static gboolean get_size_idle_func (gpointer data);
  90 static void update_filename_request (ModestAttachmentView *self);
  91
  92
  93
  94 static TnyMimePart *
  95 modest_attachment_view_get_part (TnyMimePartView *self)
  96 {
  97         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
  98 }
  99
 100 static TnyMimePart *
 101 modest_attachment_view_get_part_default (TnyMimePartView *self)
 102 {
 103         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 104
 105         if (priv->mime_part)
 106                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 107         else
 108                 return NULL;
 109 }
 110
 111 static void
 112 update_filename_request (ModestAttachmentView *self)
 113 {
 114         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 115         /* gint width, height; */
 116
 117         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 118                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 119
 120
 121 }
 122
 123 static void
 124 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 125 {
 126         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 127         return;
 128 }
 129
 130
 131 static gboolean
 132 get_size_idle_func (gpointer data)
 133 {
 134         ModestAttachmentView *self = (ModestAttachmentView *) data;
 135         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 136         gssize readed_size;
 137         gchar read_buffer[GET_SIZE_BUFFER_SIZE];
 138         gchar *size_string;
 139
 140         if (priv->get_size_stream == NULL) {
 141                 priv->get_size_stream = tny_camel_mem_stream_new ();
 142                 tny_mime_part_decode_to_stream (priv->mime_part, priv->get_size_stream);
 143                 tny_stream_reset (priv->get_size_stream);
 144                 if (tny_stream_is_eos (priv->get_size_stream)) {
 145                         tny_stream_close (priv->get_size_stream);
 146                         priv->get_size_stream = tny_mime_part_get_stream (priv->mime_part);
 147                 }
 148         }
 149
 150         readed_size = tny_stream_read (priv->get_size_stream, read_buffer, GET_SIZE_BUFFER_SIZE);
 151         priv->size += readed_size;
 152
 153         if (tny_stream_is_eos (priv->get_size_stream)) {
 154                 gchar *display_size;
 155
 156                 gdk_threads_enter ();
 157
 158                 display_size = modest_text_utils_get_display_size (priv->size);
 159                 size_string = g_strdup_printf (" (%s)", display_size);
 160                 g_free (display_size);
 161                 gtk_label_set_text (GTK_LABEL (priv->size_view), size_string);
 162                 g_free (size_string);
 163
 164                 g_object_unref (priv->get_size_stream);
 165
 166                 gtk_widget_queue_resize (priv->size_view);
 167                 priv->get_size_stream = NULL;
 168                 priv->get_size_idle_id = 0;
 169
 170                 gdk_threads_leave ();
 171         }
 172         return (priv->get_size_stream != NULL);
 173 }
 174
 175 static void
 176 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 177 {
 178         ModestAttachmentViewPriv *priv = NULL;
 179         gchar *filename = NULL;
 180         gchar *file_icon_name = NULL;
 181         gboolean show_size = FALSE;
 182
 183         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 184         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 185         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 186
 187         if (priv->mime_part != NULL) {
 188                 g_object_unref (priv->mime_part);
 189         }
 190
 191         priv->mime_part = mime_part;
 192
 193         if (priv->get_size_idle_id != 0) {
 194                 g_source_remove (priv->get_size_idle_id);
 195                 priv->get_size_idle_id = 0;
 196         }
 197
 198         if (priv->get_size_stream != NULL) {
 199                 g_object_unref (priv->get_size_stream);
 200                 priv->get_size_stream = NULL;
 201         }
 202
 203         priv->size = 0;
 204         priv->is_purged = tny_mime_part_is_purged (mime_part);
 205
 206         if (priv->is_purged) {
 207                 filename = g_strdup( tny_mime_part_get_filename (mime_part));
 208                 if (filename == NULL)
 209                         filename = g_strdup ("");
 210                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
 211         } else 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)
 216                                 filename = g_strdup (_("mail_va_no_subject"));
 217                         file_icon_name = modest_platform_get_file_icon_name (NULL, tny_mime_part_get_content_type (mime_part), NULL);
 218                         g_object_unref (header);
 219                 }
 220         } else {
 221                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
 222                 file_icon_name = modest_platform_get_file_icon_name (filename,
 223                                                                      tny_mime_part_get_content_type (mime_part),
 224                                                                      NULL);
 225                 show_size = TRUE;
 226         }
 227
 228         if (file_icon_name) {
 229                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 230                 g_free (file_icon_name);
 231         } else {
 232                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 233         }
 234
 235         if (priv->is_purged) {
 236                 gchar * label_str = g_markup_printf_escaped(
 237                         "<span style='italic' foreground='grey'>%s</span>",
 238                         filename);
 239                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
 240                 g_free (label_str);
 241         } else {
 242                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 243         }
 244         g_free (filename);
 245         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 246
 247         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
 248
 249         if (show_size)
 250                 priv->get_size_idle_id = g_idle_add ((GSourceFunc) get_size_idle_func, (gpointer) self);
 251
 252         gtk_widget_queue_draw (GTK_WIDGET (self));
 253 }
 254
 255 static void
 256 modest_attachment_view_clear (TnyMimePartView *self)
 257 {
 258         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 259         return;
 260 }
 261
 262 static void
 263 modest_attachment_view_clear_default (TnyMimePartView *self)
 264 {
 265         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 266
 267         if (priv->mime_part != NULL) {
 268                 g_object_unref (priv->mime_part);
 269                 priv->mime_part = NULL;
 270         }
 271
 272         if (priv->get_size_idle_id != 0) {
 273                 g_source_remove (priv->get_size_idle_id);
 274                 priv->get_size_idle_id = 0;
 275         }
 276
 277         if (priv->get_size_stream != NULL) {
 278                 g_object_unref (priv->get_size_stream);
 279                 priv->get_size_stream = NULL;
 280         }
 281
 282         priv->size = 0;
 283
 284         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 285                                       UNKNOWN_FILE_ICON,
 286                                       GTK_ICON_SIZE_MENU);
 287         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 288         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 289         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 290
 291         gtk_widget_queue_draw (GTK_WIDGET (self));
 292 }
 293
 294
 295 /**
 296  * modest_attachment_view_new:
 297  * @mime_part: a #TnyMimePart
 298  *
 299  * Constructor for attachment view widget.
 300  *
 301  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 302  **/
 303 GtkWidget*
 304 modest_attachment_view_new (TnyMimePart *mime_part)
 305 {
 306         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 307                                                    NULL);
 308
 309         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 310
 311         return GTK_WIDGET (self);
 312 }
 313
 314 static void
 315 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 316 {
 317         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 318         PangoContext *context;
 319         GtkWidget *box = NULL;
 320
 321         priv->mime_part = NULL;
 322         priv->icon = gtk_image_new ();
 323         priv->filename_view = gtk_label_new ("");
 324         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 325         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 326         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 327         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
 328         priv->size_view = gtk_label_new (" ");
 329         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 330         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
 331         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 332         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 333
 334         priv->get_size_idle_id = 0;
 335         priv->get_size_stream = NULL;
 336         priv->size = 0;
 337
 338         box = gtk_hbox_new (FALSE, 0);
 339         gtk_box_pack_start (GTK_BOX (box), priv->icon, FALSE, FALSE, 0);
 340         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
 341         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
 342         gtk_container_add (GTK_CONTAINER (instance), box);
 343
 344 /*      gtk_widget_get_style */
 345 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
 346
 347         context = gtk_widget_get_pango_context (priv->filename_view);
 348         priv->layout_full_filename = pango_layout_new (context);
 349
 350         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 351
 352         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
 353         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
 354         gtk_widget_set_events (GTK_WIDGET (instance), 0);
 355
 356         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
 357
 358         return;
 359 }
 360
 361 static void
 362 modest_attachment_view_finalize (GObject *object)
 363 {
 364         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 365
 366         if (priv->get_size_idle_id) {
 367                 g_source_remove (priv->get_size_idle_id);
 368                 priv->get_size_idle_id = 0;
 369         }
 370
 371         if (priv->get_size_stream != NULL) {
 372                 g_object_unref (priv->get_size_stream);
 373                 priv->get_size_stream = NULL;
 374         }
 375
 376         if (G_LIKELY (priv->mime_part)) {
 377                 g_object_unref (G_OBJECT (priv->mime_part));
 378                 priv->mime_part = NULL;
 379         }
 380
 381         (*parent_class->finalize) (object);
 382
 383         return;
 384 }
 385
 386 static void
 387 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 388 {
 389         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 390         gint width, width_diff;
 391
 392         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 393         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)))));
 394
 395         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 396         width_diff = priv->filename_view->allocation.width - width;
 397         if (width_diff > 0) {
 398                 GtkAllocation filename_alloc, filesize_alloc;
 399                 filename_alloc = priv->filename_view->allocation;
 400                 filesize_alloc = priv->size_view->allocation;
 401                 filename_alloc.width -= width_diff;
 402                 filesize_alloc.width += width_diff;
 403                 filesize_alloc.x -= width_diff;
 404                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 405                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 406         }
 407
 408 }
 409
 410
 411 static void
 412 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 413 {
 414         GObjectClass *object_class;
 415         GtkWidgetClass *widget_class;
 416
 417         parent_class = g_type_class_peek_parent (klass);
 418         object_class = (GObjectClass*) klass;
 419         widget_class = GTK_WIDGET_CLASS (klass);
 420
 421         object_class->finalize = modest_attachment_view_finalize;
 422
 423         klass->get_part_func = modest_attachment_view_get_part_default;
 424         klass->set_part_func = modest_attachment_view_set_part_default;
 425         klass->clear_func = modest_attachment_view_clear_default;
 426
 427         widget_class->size_allocate = size_allocate;
 428
 429         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPriv));
 430
 431         return;
 432 }
 433
 434 static void
 435 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 436 {
 437         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 438
 439         klass->get_part_func = modest_attachment_view_get_part;
 440         klass->set_part_func = modest_attachment_view_set_part;
 441         klass->clear_func = modest_attachment_view_clear;
 442
 443         return;
 444 }
 445
 446 GType
 447 modest_attachment_view_get_type (void)
 448 {
 449         static GType type = 0;
 450
 451         if (G_UNLIKELY(type == 0))
 452         {
 453                 static const GTypeInfo info =
 454                 {
 455                   sizeof (ModestAttachmentViewClass),
 456                   NULL,   /* base_init */
 457                   NULL,   /* base_finalize */
 458                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 459                   NULL,   /* class_finalize */
 460                   NULL,   /* class_data */
 461                   sizeof (ModestAttachmentView),
 462                   0,      /* n_preallocs */
 463                   modest_attachment_view_instance_init    /* instance_init */
 464                 };
 465
 466                 static const GInterfaceInfo tny_mime_part_view_info =
 467                 {
 468                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 469                         NULL,        /* interface_finalize */
 470                         NULL         /* interface_data */
 471                 };
 472
 473                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 474                         "ModestAttachmentView",
 475                         &info, 0);
 476
 477                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 478                                              &tny_mime_part_view_info);
 479
 480         }
 481
 482         return type;
 483 }