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 #include <config.h>
  31
  32 //#include <glib/gi18n-lib.h>
  33
  34 #include <string.h>
  35 #include <modest-attachment-view.h>
  36 #include <modest-platform.h>
  37 #include <modest-text-utils.h>
  38
  39 static GObjectClass *parent_class = NULL;
  40
  41 /* signals */
  42 enum {
  43         ACTIVATE_SIGNAL,
  44         LAST_SIGNAL
  45 };
  46
  47 typedef struct _ModestAttachmentViewPriv ModestAttachmentViewPriv;
  48
  49 struct _ModestAttachmentViewPriv
  50 {
  51         TnyMimePart *mime_part;
  52
  53         GtkWidget *icon;
  54         GtkWidget *filename_view;
  55         GtkWidget *size_view;
  56
  57         guint get_size_idle_id;
  58         TnyStream *get_size_stream;
  59         guint size;
  60
  61         PangoLayout *layout_full_filename;
  62
  63         gboolean button_pressed;
  64         gdouble pressed_x, pressed_y;
  65 };
  66
  67 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
  68 #define GET_SIZE_BUFFER_SIZE 128
  69
  70 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
  71         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPriv))
  72
  73 static guint signals[LAST_SIGNAL] = {0};
  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 gint button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  85 static gint button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  86 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
  87
  88 /* GObject and GInterface management */
  89 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
  90 static void modest_attachment_view_finalize (GObject *object);
  91 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
  92 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
  93
  94
  95
  96 static gboolean get_size_idle_func (gpointer data);
  97 static void update_filename_request (ModestAttachmentView *self);
  98
  99
 100
 101 static TnyMimePart *
 102 modest_attachment_view_get_part (TnyMimePartView *self)
 103 {
 104         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
 105 }
 106
 107 static TnyMimePart *
 108 modest_attachment_view_get_part_default (TnyMimePartView *self)
 109 {
 110         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 111
 112         if (priv->mime_part)
 113                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 114         else
 115                 return NULL;
 116 }
 117
 118 static void
 119 update_filename_request (ModestAttachmentView *self)
 120 {
 121         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 122         /* gint width, height; */
 123
 124         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 125                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 126
 127
 128 }
 129
 130 static void
 131 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 132 {
 133         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 134         return;
 135 }
 136
 137
 138 static gboolean
 139 get_size_idle_func (gpointer data)
 140 {
 141         ModestAttachmentView *self = (ModestAttachmentView *) data;
 142         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 143         gssize readed_size;
 144         gchar read_buffer[GET_SIZE_BUFFER_SIZE];
 145         gchar *size_string;
 146
 147         if (priv->get_size_stream == NULL) {
 148                 priv->get_size_stream = tny_mime_part_get_stream (priv->mime_part);
 149         }
 150
 151         readed_size = tny_stream_read (priv->get_size_stream, read_buffer, GET_SIZE_BUFFER_SIZE);
 152         priv->size += readed_size;
 153
 154         if (tny_stream_is_eos (priv->get_size_stream)) {
 155                 gchar *display_size;
 156
 157                 display_size = modest_text_utils_get_display_size (priv->size);
 158                 size_string = g_strdup_printf (" (%s)", display_size);
 159                 g_free (display_size);
 160                 gtk_label_set_text (GTK_LABEL (priv->size_view), size_string);
 161                 g_free (size_string);
 162
 163                 g_object_unref (priv->get_size_stream);
 164
 165                 gtk_widget_queue_resize (priv->size_view);
 166                 priv->get_size_stream = NULL;
 167                 priv->get_size_idle_id = 0;
 168         }
 169
 170         return (priv->get_size_stream != NULL);
 171
 172 }
 173
 174 static void
 175 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 176 {
 177         ModestAttachmentViewPriv *priv = NULL;
 178         const gchar *filename;
 179         gchar *file_icon_name;
 180
 181         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 182         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 183         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 184
 185         if (priv->mime_part != NULL) {
 186                 g_object_unref (priv->mime_part);
 187         }
 188
 189         priv->mime_part = mime_part;
 190
 191         if (priv->get_size_idle_id != 0) {
 192                 g_source_remove (priv->get_size_idle_id);
 193                 priv->get_size_idle_id = 0;
 194         }
 195
 196         if (priv->get_size_stream != NULL) {
 197                 g_object_unref (priv->get_size_stream);
 198                 priv->get_size_stream = NULL;
 199         }
 200
 201         priv->size = 0;
 202
 203         filename = tny_mime_part_get_filename (mime_part);
 204         file_icon_name = modest_platform_get_file_icon_name (filename,
 205                                                              tny_mime_part_get_content_type (mime_part),
 206                                                              NULL);
 207
 208         if (file_icon_name) {
 209                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 210                 g_free (file_icon_name);
 211         } else {
 212                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 213         }
 214
 215         gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 216         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 217
 218         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 219
 220         priv->get_size_idle_id = g_idle_add ((GSourceFunc) get_size_idle_func, (gpointer) self);
 221
 222         gtk_widget_queue_draw (GTK_WIDGET (self));
 223 }
 224
 225 static void
 226 modest_attachment_view_clear (TnyMimePartView *self)
 227 {
 228         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 229         return;
 230 }
 231
 232 static void
 233 modest_attachment_view_clear_default (TnyMimePartView *self)
 234 {
 235         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 236
 237         if (priv->mime_part != NULL) {
 238                 g_object_unref (priv->mime_part);
 239                 priv->mime_part = NULL;
 240         }
 241
 242         if (priv->get_size_idle_id != 0) {
 243                 g_source_remove (priv->get_size_idle_id);
 244                 priv->get_size_idle_id = 0;
 245         }
 246
 247         if (priv->get_size_stream != NULL) {
 248                 g_object_unref (priv->get_size_stream);
 249                 priv->get_size_stream = NULL;
 250         }
 251
 252         priv->size = 0;
 253
 254         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 255                                       UNKNOWN_FILE_ICON,
 256                                       GTK_ICON_SIZE_MENU);
 257         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 258         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 259         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 260
 261         gtk_widget_queue_draw (GTK_WIDGET (self));
 262 }
 263
 264 static gint
 265 button_press_event (GtkWidget *widget,
 266                     GdkEventButton *event,
 267                     gpointer user_data)
 268 {
 269         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 270
 271         if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
 272                 priv->button_pressed = TRUE;
 273                 priv->pressed_x = event->x;
 274                 priv->pressed_y = event->y;
 275         }
 276         return TRUE;
 277 }
 278
 279 static gint
 280 button_release_event (GtkWidget *widget,
 281                       GdkEventButton *event,
 282                       gpointer user_data)
 283 {
 284         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 285
 286         if (event->type != GDK_BUTTON_RELEASE)
 287                 return TRUE;
 288
 289         if ((priv->button_pressed) &&
 290             (event->type == GDK_BUTTON_RELEASE) &&
 291             (priv->pressed_x == event->x) &&
 292             (priv->pressed_y == event->y)) {
 293                 priv->button_pressed = FALSE;
 294                 if (event->button == 1) {
 295                         g_signal_emit (G_OBJECT (user_data), signals[ACTIVATE_SIGNAL], 0);
 296                         return TRUE;
 297                 }
 298         }
 299         priv->button_pressed = FALSE;
 300         return TRUE;
 301 }
 302
 303
 304
 305 /**
 306  * modest_attachment_view_new:
 307  * @mime_part: a #TnyMimePart
 308  *
 309  * Constructor for attachment view widget.
 310  *
 311  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 312  **/
 313 GtkWidget*
 314 modest_attachment_view_new (TnyMimePart *mime_part)
 315 {
 316         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 317                                                    "homogeneous", FALSE,
 318                                                    "spacing", 0,
 319                                                    NULL);
 320
 321         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 322
 323         return GTK_WIDGET (self);
 324 }
 325
 326 static void
 327 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 328 {
 329         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 330         PangoContext *context;
 331         GtkWidget *icon_eventbox;
 332
 333         priv->mime_part = NULL;
 334         priv->icon = gtk_image_new ();
 335         priv->filename_view = gtk_label_new ("");
 336         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 337         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 338         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 339         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), TRUE);
 340         priv->size_view = gtk_label_new (" ");
 341         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 342         gtk_label_set_selectable (GTK_LABEL (priv->size_view), TRUE);
 343         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 344         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 345
 346         priv->get_size_idle_id = 0;
 347         priv->get_size_stream = NULL;
 348         priv->size = 0;
 349
 350         icon_eventbox = gtk_event_box_new ();
 351
 352         gtk_container_add (GTK_CONTAINER (icon_eventbox), priv->icon);
 353         gtk_box_pack_start (GTK_BOX (instance), icon_eventbox, FALSE, FALSE, 0);
 354         gtk_box_pack_start (GTK_BOX (instance), priv->filename_view, TRUE, TRUE, 0);
 355         gtk_box_pack_start (GTK_BOX (instance), priv->size_view, FALSE, FALSE, 0);
 356
 357         context = gtk_widget_get_pango_context (priv->filename_view);
 358         priv->layout_full_filename = pango_layout_new (context);
 359
 360         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 361
 362         g_signal_connect (G_OBJECT (priv->filename_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 363         g_signal_connect (G_OBJECT (priv->filename_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 364         g_signal_connect (G_OBJECT (priv->size_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 365         g_signal_connect (G_OBJECT (priv->size_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 366         g_signal_connect (G_OBJECT (icon_eventbox), "button-press-event", G_CALLBACK (button_press_event), instance);
 367         g_signal_connect (G_OBJECT (icon_eventbox), "button-release-event", G_CALLBACK (button_release_event), instance);
 368
 369         return;
 370 }
 371
 372 static void
 373 modest_attachment_view_finalize (GObject *object)
 374 {
 375         ModestAttachmentViewPriv *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         ModestAttachmentViewPriv *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         klass->activate = NULL;
 438
 439         widget_class->size_allocate = size_allocate;
 440
 441         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPriv));
 442
 443         signals[ACTIVATE_SIGNAL] =
 444                 g_signal_new ("activate",
 445                               G_TYPE_FROM_CLASS (object_class),
 446                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 447                               G_STRUCT_OFFSET(ModestAttachmentViewClass, activate),
 448                               NULL, NULL,
 449                               g_cclosure_marshal_VOID__VOID,
 450                               G_TYPE_NONE, 0);
 451
 452         return;
 453 }
 454
 455 static void
 456 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 457 {
 458         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 459
 460         klass->get_part_func = modest_attachment_view_get_part;
 461         klass->set_part_func = modest_attachment_view_set_part;
 462         klass->clear_func = modest_attachment_view_clear;
 463
 464         return;
 465 }
 466
 467 GType
 468 modest_attachment_view_get_type (void)
 469 {
 470         static GType type = 0;
 471
 472         if (G_UNLIKELY(type == 0))
 473         {
 474                 static const GTypeInfo info =
 475                 {
 476                   sizeof (ModestAttachmentViewClass),
 477                   NULL,   /* base_init */
 478                   NULL,   /* base_finalize */
 479                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 480                   NULL,   /* class_finalize */
 481                   NULL,   /* class_data */
 482                   sizeof (ModestAttachmentView),
 483                   0,      /* n_preallocs */
 484                   modest_attachment_view_instance_init    /* instance_init */
 485                 };
 486
 487                 static const GInterfaceInfo tny_mime_part_view_info =
 488                 {
 489                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 490                         NULL,        /* interface_finalize */
 491                         NULL         /* interface_data */
 492                 };
 493
 494                 type = g_type_register_static (GTK_TYPE_HBOX,
 495                         "ModestAttachmentView",
 496                         &info, 0);
 497
 498                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 499                                              &tny_mime_part_view_info);
 500
 501         }
 502
 503         return type;
 504 }