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
 127 }
 128
 129 static void
 130 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
 131 {
 132         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
 133         return;
 134 }
 135
 136
 137 static gboolean
 138 get_size_idle_func (gpointer data)
 139 {
 140         ModestAttachmentView *self = (ModestAttachmentView *) data;
 141         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 142         gssize readed_size;
 143         gchar read_buffer[GET_SIZE_BUFFER_SIZE];
 144         gchar *size_string;
 145
 146         if (priv->get_size_stream == NULL) {
 147                 priv->get_size_stream = tny_mime_part_get_stream (priv->mime_part);
 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                 size_string = g_strdup_printf (" (%d kb)", priv->size / 1024);
 155                 gtk_label_set_text (GTK_LABEL (priv->size_view), size_string);
 156                 g_free (size_string);
 157
 158                 g_object_unref (priv->get_size_stream);
 159
 160                 gtk_widget_queue_resize (priv->size_view);
 161                 priv->get_size_stream = NULL;
 162                 priv->get_size_idle_id = 0;
 163         }
 164
 165         return (priv->get_size_stream != NULL);
 166
 167 }
 168
 169 static void
 170 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
 171 {
 172         ModestAttachmentViewPriv *priv = NULL;
 173         const gchar *filename;
 174         gchar *file_icon_name;
 175
 176         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
 177         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 178         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 179
 180         if (priv->mime_part != NULL) {
 181                 g_object_unref (priv->mime_part);
 182         }
 183
 184         priv->mime_part = mime_part;
 185
 186         if (priv->get_size_idle_id != 0) {
 187                 g_source_remove (priv->get_size_idle_id);
 188                 priv->get_size_idle_id = 0;
 189         }
 190
 191         if (priv->get_size_stream != NULL) {
 192                 g_object_unref (priv->get_size_stream);
 193                 priv->get_size_stream = NULL;
 194         }
 195
 196         priv->size = 0;
 197
 198         filename = tny_mime_part_get_filename (mime_part);
 199         file_icon_name = modest_platform_get_file_icon_name (filename,
 200                                                              tny_mime_part_get_content_type (mime_part),
 201                                                              NULL);
 202
 203         if (file_icon_name) {
 204                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
 205                 g_free (file_icon_name);
 206         } else {
 207                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
 208         }
 209
 210         gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
 211         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
 212
 213         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 214
 215         priv->get_size_idle_id = g_idle_add ((GSourceFunc) get_size_idle_func, (gpointer) self);
 216
 217         gtk_widget_queue_draw (GTK_WIDGET (self));
 218 }
 219
 220 static void
 221 modest_attachment_view_clear (TnyMimePartView *self)
 222 {
 223         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
 224         return;
 225 }
 226
 227 static void
 228 modest_attachment_view_clear_default (TnyMimePartView *self)
 229 {
 230         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
 231
 232         if (priv->mime_part != NULL) {
 233                 g_object_unref (priv->mime_part);
 234                 priv->mime_part = NULL;
 235         }
 236
 237         if (priv->get_size_idle_id != 0) {
 238                 g_source_remove (priv->get_size_idle_id);
 239                 priv->get_size_idle_id = 0;
 240         }
 241
 242         if (priv->get_size_stream != NULL) {
 243                 g_object_unref (priv->get_size_stream);
 244                 priv->get_size_stream = NULL;
 245         }
 246
 247         priv->size = 0;
 248
 249         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon),
 250                                       UNKNOWN_FILE_ICON,
 251                                       GTK_ICON_SIZE_MENU);
 252         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
 253         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
 254         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
 255
 256         gtk_widget_queue_draw (GTK_WIDGET (self));
 257 }
 258
 259 static gint
 260 button_press_event (GtkWidget *widget,
 261                     GdkEventButton *event,
 262                     gpointer user_data)
 263 {
 264         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 265
 266         if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
 267                 priv->button_pressed = TRUE;
 268                 priv->pressed_x = event->x;
 269                 priv->pressed_y = event->y;
 270         }
 271         return TRUE;
 272 }
 273
 274 static gint
 275 button_release_event (GtkWidget *widget,
 276                       GdkEventButton *event,
 277                       gpointer user_data)
 278 {
 279         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (MODEST_ATTACHMENT_VIEW (user_data));
 280
 281         if (event->type != GDK_BUTTON_RELEASE)
 282                 return TRUE;
 283
 284         if ((priv->button_pressed) &&
 285             (event->type == GDK_BUTTON_RELEASE) &&
 286             (priv->pressed_x == event->x) &&
 287             (priv->pressed_y == event->y)) {
 288                 priv->button_pressed = FALSE;
 289                 if (event->button == 1) {
 290                         g_signal_emit (G_OBJECT (user_data), signals[ACTIVATE_SIGNAL], 0);
 291                         return TRUE;
 292                 }
 293         }
 294         priv->button_pressed = FALSE;
 295         return TRUE;
 296 }
 297
 298
 299
 300 /**
 301  * modest_attachment_view_new:
 302  * @mime_part: a #TnyMimePart
 303  *
 304  * Constructor for attachment view widget.
 305  *
 306  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
 307  **/
 308 GtkWidget*
 309 modest_attachment_view_new (TnyMimePart *mime_part)
 310 {
 311         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW,
 312                                                    "homogeneous", FALSE,
 313                                                    "spacing", 0,
 314                                                    NULL);
 315
 316         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
 317
 318         return GTK_WIDGET (self);
 319 }
 320
 321 static void
 322 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
 323 {
 324         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
 325         PangoContext *context;
 326         GtkWidget *icon_eventbox;
 327
 328         priv->mime_part = NULL;
 329         priv->icon = gtk_image_new ();
 330         priv->filename_view = gtk_label_new ("");
 331         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
 332         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
 333         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
 334         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), TRUE);
 335         priv->size_view = gtk_label_new (" ");
 336         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
 337         gtk_label_set_selectable (GTK_LABEL (priv->size_view), TRUE);
 338         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
 339         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
 340
 341         priv->get_size_idle_id = 0;
 342         priv->get_size_stream = NULL;
 343         priv->size = 0;
 344
 345         icon_eventbox = gtk_event_box_new ();
 346
 347         gtk_container_add (GTK_CONTAINER (icon_eventbox), priv->icon);
 348         gtk_box_pack_start (GTK_BOX (instance), icon_eventbox, FALSE, FALSE, 0);
 349         gtk_box_pack_start (GTK_BOX (instance), priv->filename_view, TRUE, TRUE, 0);
 350         gtk_box_pack_start (GTK_BOX (instance), priv->size_view, FALSE, FALSE, 0);
 351
 352         context = gtk_widget_get_pango_context (priv->filename_view);
 353         priv->layout_full_filename = pango_layout_new (context);
 354
 355         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
 356
 357         g_signal_connect (G_OBJECT (priv->filename_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 358         g_signal_connect (G_OBJECT (priv->filename_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 359         g_signal_connect (G_OBJECT (priv->size_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 360         g_signal_connect (G_OBJECT (priv->size_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 361         g_signal_connect (G_OBJECT (icon_eventbox), "button-press-event", G_CALLBACK (button_press_event), instance);
 362         g_signal_connect (G_OBJECT (icon_eventbox), "button-release-event", G_CALLBACK (button_release_event), instance);
 363
 364         return;
 365 }
 366
 367 static void
 368 modest_attachment_view_finalize (GObject *object)
 369 {
 370         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
 371
 372         if (priv->get_size_idle_id) {
 373                 g_source_remove (priv->get_size_idle_id);
 374                 priv->get_size_idle_id = 0;
 375         }
 376
 377         if (priv->get_size_stream != NULL) {
 378                 g_object_unref (priv->get_size_stream);
 379                 priv->get_size_stream = NULL;
 380         }
 381
 382         if (G_LIKELY (priv->mime_part)) {
 383                 g_object_unref (G_OBJECT (priv->mime_part));
 384                 priv->mime_part = NULL;
 385         }
 386
 387         (*parent_class->finalize) (object);
 388
 389         return;
 390 }
 391
 392 static void
 393 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 394 {
 395         ModestAttachmentViewPriv *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
 396         gint width, width_diff;
 397
 398         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 399         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)))));
 400
 401         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
 402         width_diff = priv->filename_view->allocation.width - width;
 403         if (width_diff > 0) {
 404                 GtkAllocation filename_alloc, filesize_alloc;
 405                 filename_alloc = priv->filename_view->allocation;
 406                 filesize_alloc = priv->size_view->allocation;
 407                 filename_alloc.width -= width_diff;
 408                 filesize_alloc.width += width_diff;
 409                 filesize_alloc.x -= width_diff;
 410                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
 411                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
 412         }
 413
 414 }
 415
 416
 417 static void
 418 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
 419 {
 420         GObjectClass *object_class;
 421         GtkWidgetClass *widget_class;
 422
 423         parent_class = g_type_class_peek_parent (klass);
 424         object_class = (GObjectClass*) klass;
 425         widget_class = GTK_WIDGET_CLASS (klass);
 426
 427         object_class->finalize = modest_attachment_view_finalize;
 428
 429         klass->get_part_func = modest_attachment_view_get_part_default;
 430         klass->set_part_func = modest_attachment_view_set_part_default;
 431         klass->clear_func = modest_attachment_view_clear_default;
 432         klass->activate = NULL;
 433
 434         widget_class->size_allocate = size_allocate;
 435
 436         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPriv));
 437
 438         signals[ACTIVATE_SIGNAL] =
 439                 g_signal_new ("activate",
 440                               G_TYPE_FROM_CLASS (object_class),
 441                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 442                               G_STRUCT_OFFSET(ModestAttachmentViewClass, activate),
 443                               NULL, NULL,
 444                               g_cclosure_marshal_VOID__VOID,
 445                               G_TYPE_NONE, 0);
 446
 447         return;
 448 }
 449
 450 static void
 451 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 452 {
 453         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 454
 455         klass->get_part_func = modest_attachment_view_get_part;
 456         klass->set_part_func = modest_attachment_view_set_part;
 457         klass->clear_func = modest_attachment_view_clear;
 458
 459         return;
 460 }
 461
 462 GType
 463 modest_attachment_view_get_type (void)
 464 {
 465         static GType type = 0;
 466
 467         if (G_UNLIKELY(type == 0))
 468         {
 469                 static const GTypeInfo info =
 470                 {
 471                   sizeof (ModestAttachmentViewClass),
 472                   NULL,   /* base_init */
 473                   NULL,   /* base_finalize */
 474                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
 475                   NULL,   /* class_finalize */
 476                   NULL,   /* class_data */
 477                   sizeof (ModestAttachmentView),
 478                   0,      /* n_preallocs */
 479                   modest_attachment_view_instance_init    /* instance_init */
 480                 };
 481
 482                 static const GInterfaceInfo tny_mime_part_view_info =
 483                 {
 484                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 485                         NULL,        /* interface_finalize */
 486                         NULL         /* interface_data */
 487                 };
 488
 489                 type = g_type_register_static (GTK_TYPE_HBOX,
 490                         "ModestAttachmentView",
 491                         &info, 0);
 492
 493                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
 494                                              &tny_mime_part_view_info);
 495
 496         }
 497
 498         return type;
 499 }