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
  38 static GObjectClass *parent_class = NULL;
  39
  40 /* signals */
  41 enum {
  42         ACTIVATE_SIGNAL,
  43         LAST_SIGNAL
  44 };
  45
  46 typedef struct _ModestAttachmentViewPriv ModestAttachmentViewPriv;
  47
  48 struct _ModestAttachmentViewPriv
  49 {
  50         TnyMimePart *mime_part;
  51
  52         GtkWidget *icon;
  53         GtkWidget *filename_view;
  54         GtkWidget *size_view;
  55
  56         guint get_size_idle_id;
  57         TnyStream *get_size_stream;
  58         guint size;
  59
  60         PangoLayout *layout_full_filename;
  61
  62         gboolean button_pressed;
  63         gdouble pressed_x, pressed_y;
  64 };
  65
  66 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
  67 #define GET_SIZE_BUFFER_SIZE 128
  68
  69 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
  70         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPriv))
  71
  72 static guint signals[LAST_SIGNAL] = {0};
  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 gint button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  84 static gint button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  85 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
  86
  87 /* GObject and GInterface management */
  88 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
  89 static void modest_attachment_view_finalize (GObject *object);
  90 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
  91 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
  92
  93
  94
  95 static gboolean get_size_idle_func (gpointer data);
  96 static void update_filename_request (ModestAttachmentView *self);
  97
  98
  99
 100 static TnyMimePart *
 101 modest_attachment_view_get_part (TnyMimePartView *self)
 102 {
 103         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
 104 }
 105
 106 static TnyMimePart *
 107 modest_attachment_view_get_part_default (TnyMimePartView *self)
 108 {
 109         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 110
 111         if (priv->mime_part)
 112                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
 113         else
 114                 return NULL;
 115 }
 116
 117 static void
 118 update_filename_request (ModestAttachmentView *self)
 119 {
 120         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 121         gint width, height;
 122
 123         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename),
 124                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
 125
 126         pango_layout_get_pixel_size (priv->layout_full_filename, &width, &height);
 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                 size_string = g_strdup_printf (" (%d kb)", priv->size / 1024);
 156                 gtk_label_set_text (GTK_LABEL (priv->size_view), size_string);
 157                 g_free (size_string);
 158
 159                 g_object_unref (priv->get_size_stream);
 160
 161                 gtk_widget_queue_resize (priv->size_view);
 162                 priv->get_size_stream = NULL;
 163                 priv->get_size_idle_id = 0;
 164         }
 165
 166         return (priv->get_size_stream != NULL);
 167
 168 }
 169
 170 static void
 171 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 172 {
 173         ModestAttachmentViewPriv *priv = NULL;
 174         const gchar *filename;
 175         gchar *file_icon_name;
 176
 177         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 178         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 179         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 180
 181         if (priv->mime_part != NULL) {
 182                 g_object_unref (priv->mime_part);
 183         }
 184
 185         priv->mime_part = mime_part;
 186
 187         if (priv->get_size_idle_id != 0) {
 188                 g_source_remove (priv->get_size_idle_id);
 189                 priv->get_size_idle_id = 0;
 190         }
 191
 192         if (priv->get_size_stream != NULL) {
 193                 g_object_unref (priv->get_size_stream);
 194                 priv->get_size_stream = NULL;
 195         }
 196
 197         priv->size = 0;
 198
 199         filename = tny_mime_part_get_filename (mime_part);
 200         file_icon_name = modest_platform_get_file_icon_name (filename,
 201                                                              tny_mime_part_get_content_type (mime_part),
 202                                                              NULL);
 203
 204         if (file_icon_name) {
 205                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 206                 g_free (file_icon_name);
 207         } else {
 208                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 209         }
 210
 211         gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 212         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 213
 214         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 215
 216         priv->get_size_idle_id = g_idle_add ((GSourceFunc) get_size_idle_func, (gpointer) self);
 217
 218         gtk_widget_queue_draw (GTK_WIDGET (self));
 219 }
 220
 221 static void
 222 modest_attachment_view_clear (TnyMimePartView *self)
 223 {
 224         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 225         return;
 226 }
 227
 228 static void
 229 modest_attachment_view_clear_default (TnyMimePartView *self)
 230 {
 231         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 232
 233         if (priv->mime_part != NULL) {
 234                 g_object_unref (priv->mime_part);
 235                 priv->mime_part = NULL;
 236         }
 237
 238         if (priv->get_size_idle_id != 0) {
 239                 g_source_remove (priv->get_size_idle_id);
 240                 priv->get_size_idle_id = 0;
 241         }
 242
 243         if (priv->get_size_stream != NULL) {
 244                 g_object_unref (priv->get_size_stream);
 245                 priv->get_size_stream = NULL;
 246         }
 247
 248         priv->size = 0;
 249
 250         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 251                                       UNKNOWN_FILE_ICON,
 252                                       GTK_ICON_SIZE_MENU);
 253         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 254         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 255         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 256
 257         gtk_widget_queue_draw (GTK_WIDGET (self));
 258 }
 259
 260 static gint
 261 button_press_event (GtkWidget *widget,
 262                     GdkEventButton *event,
 263                     gpointer user_data)
 264 {
 265         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 266
 267         if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
 268                 priv->button_pressed = TRUE;
 269                 priv->pressed_x = event->x;
 270                 priv->pressed_y = event->y;
 271         }
 272         return TRUE;
 273 }
 274
 275 static gint
 276 button_release_event (GtkWidget *widget,
 277                       GdkEventButton *event,
 278                       gpointer user_data)
 279 {
 280         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 281
 282         if (event->type != GDK_BUTTON_RELEASE)
 283                 return TRUE;
 284
 285         if ((priv->button_pressed) &&
 286             (event->type == GDK_BUTTON_RELEASE) &&
 287             (priv->pressed_x == event->x) &&
 288             (priv->pressed_y == event->y)) {
 289                 priv->button_pressed = FALSE;
 290                 if (event->button == 1) {
 291                         g_signal_emit (G_OBJECT (user_data), signals[ACTIVATE_SIGNAL], 0);
 292                         return TRUE;
 293                 }
 294         }
 295         priv->button_pressed = FALSE;
 296         return TRUE;
 297 }
 298
 299
 300
 301 /**
 302  * modest_attachment_view_new:
 303  * @mime_part: a #TnyMimePart
 304  *
 305  * Constructor for attachment view widget.
 306  *
 307  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 308  **/
 309 GtkWidget*
 310 modest_attachment_view_new (TnyMimePart *mime_part)
 311 {
 312         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 313                                                    "homogeneous", FALSE,
 314                                                    "spacing", 0,
 315                                                    NULL);
 316
 317         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 318
 319         return GTK_WIDGET (self);
 320 }
 321
 322 static void
 323 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 324 {
 325         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 326         PangoContext *context;
 327         GtkWidget *icon_eventbox;
 328
 329         priv->mime_part = NULL;
 330         priv->icon = gtk_image_new ();
 331         priv->filename_view = gtk_label_new ("");
 332         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 333         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 334         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 335         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), TRUE);
 336         priv->size_view = gtk_label_new (" ");
 337         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 338         gtk_label_set_selectable (GTK_LABEL (priv->size_view), TRUE);
 339         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 340         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 341
 342         priv->get_size_idle_id = 0;
 343         priv->get_size_stream = NULL;
 344         priv->size = 0;
 345
 346         icon_eventbox = gtk_event_box_new ();
 347
 348         gtk_container_add (GTK_CONTAINER (icon_eventbox), priv->icon);
 349         gtk_box_pack_start (GTK_BOX (instance), icon_eventbox, FALSE, FALSE, 0);
 350         gtk_box_pack_start (GTK_BOX (instance), priv->filename_view, TRUE, TRUE, 0);
 351         gtk_box_pack_start (GTK_BOX (instance), priv->size_view, FALSE, FALSE, 0);
 352
 353         context = gtk_widget_get_pango_context (priv->filename_view);
 354         priv->layout_full_filename = pango_layout_new (context);
 355
 356         g_signal_connect (G_OBJECT (priv->filename_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 357         g_signal_connect (G_OBJECT (priv->filename_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 358         g_signal_connect (G_OBJECT (priv->size_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 359         g_signal_connect (G_OBJECT (priv->size_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 360         g_signal_connect (G_OBJECT (icon_eventbox), "button-press-event", G_CALLBACK (button_press_event), instance);
 361         g_signal_connect (G_OBJECT (icon_eventbox), "button-release-event", G_CALLBACK (button_release_event), instance);
 362
 363         return;
 364 }
 365
 366 static void
 367 modest_attachment_view_finalize (GObject *object)
 368 {
 369         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 370
 371         if (priv->get_size_idle_id) {
 372                 g_source_remove (priv->get_size_idle_id);
 373                 priv->get_size_idle_id = 0;
 374         }
 375
 376         if (priv->get_size_stream != NULL) {
 377                 g_object_unref (priv->get_size_stream);
 378                 priv->get_size_stream = NULL;
 379         }
 380
 381         if (G_LIKELY (priv->mime_part)) {
 382                 g_object_unref (G_OBJECT (priv->mime_part));
 383                 priv->mime_part = NULL;
 384         }
 385
 386         (*parent_class->finalize) (object);
 387
 388         return;
 389 }
 390
 391 static void
 392 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 393 {
 394         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 395         gint width, width_diff;
 396
 397         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 398         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 399         width_diff = priv->filename_view->allocation.width - width;
 400         if (width_diff > 0) {
 401                 GtkAllocation filename_alloc, filesize_alloc;
 402                 filename_alloc = priv->filename_view->allocation;
 403                 filesize_alloc = priv->size_view->allocation;
 404                 filename_alloc.width -= width_diff;
 405                 filesize_alloc.width += width_diff;
 406                 filesize_alloc.x -= width_diff;
 407                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 408                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 409         }
 410
 411 }
 412
 413
 414 static void
 415 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 416 {
 417         GObjectClass *object_class;
 418         GtkWidgetClass *widget_class;
 419
 420         parent_class = g_type_class_peek_parent (klass);
 421         object_class = (GObjectClass*) klass;
 422         widget_class = GTK_WIDGET_CLASS (klass);
 423
 424         object_class->finalize = modest_attachment_view_finalize;
 425
 426         klass->get_part_func = modest_attachment_view_get_part_default;
 427         klass->set_part_func = modest_attachment_view_set_part_default;
 428         klass->clear_func = modest_attachment_view_clear_default;
 429         klass->activate = NULL;
 430
 431         widget_class->size_allocate = size_allocate;
 432
 433         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPriv));
 434
 435         signals[ACTIVATE_SIGNAL] =
 436                 g_signal_new ("activate",
 437                               G_TYPE_FROM_CLASS (object_class),
 438                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 439                               G_STRUCT_OFFSET(ModestAttachmentViewClass, activate),
 440                               NULL, NULL,
 441                               g_cclosure_marshal_VOID__VOID,
 442                               G_TYPE_NONE, 0);
 443
 444         return;
 445 }
 446
 447 static void
 448 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 449 {
 450         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 451
 452         klass->get_part_func = modest_attachment_view_get_part;
 453         klass->set_part_func = modest_attachment_view_set_part;
 454         klass->clear_func = modest_attachment_view_clear;
 455
 456         return;
 457 }
 458
 459 GType
 460 modest_attachment_view_get_type (void)
 461 {
 462         static GType type = 0;
 463
 464         if (G_UNLIKELY(type == 0))
 465         {
 466                 static const GTypeInfo info =
 467                 {
 468                   sizeof (ModestAttachmentViewClass),
 469                   NULL,   /* base_init */
 470                   NULL,   /* base_finalize */
 471                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 472                   NULL,   /* class_finalize */
 473                   NULL,   /* class_data */
 474                   sizeof (ModestAttachmentView),
 475                   0,      /* n_preallocs */
 476                   modest_attachment_view_instance_init    /* instance_init */
 477                 };
 478
 479                 static const GInterfaceInfo tny_mime_part_view_info =
 480                 {
 481                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 482                         NULL,        /* interface_finalize */
 483                         NULL         /* interface_data */
 484                 };
 485
 486                 type = g_type_register_static (GTK_TYPE_HBOX,
 487                         "ModestAttachmentView",
 488                         &info, 0);
 489
 490                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 491                                              &tny_mime_part_view_info);
 492
 493         }
 494
 495         return type;
 496 }