git.maemo.org Git - modest/blob - src/widgets/modest-msg-view.c

   1 /* Copyright (c) 2006, 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 <tny-gtk-text-buffer-stream.h>
  31 #include <string.h>
  32 #include <regex.h>
  33 #include <ctype.h>
  34 #include <stdlib.h>
  35 #include <glib/gi18n.h>
  36 #include <gtkhtml/gtkhtml.h>
  37 #include <gtkhtml/gtkhtml-stream.h>
  38 #include <tny-list.h>
  39 #include <tny-simple-list.h>
  40
  41 #include <modest-tny-msg.h>
  42 #include <modest-text-utils.h>
  43 #include "modest-msg-view.h"
  44 #include "modest-tny-stream-gtkhtml.h"
  45 #include <modest-mail-header-view.h>
  46 #include <modest-attachments-view.h>
  47 #include <modest-marshal.h>
  48
  49
  50 /* 'private'/'protected' functions */
  51 static void     modest_msg_view_class_init   (ModestMsgViewClass *klass);
  52 static void     modest_msg_view_init         (ModestMsgView *obj);
  53 static void     modest_msg_view_finalize     (GObject *obj);
  54 static void     modest_msg_view_destroy     (GtkObject *obj);
  55 static void     set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
  56 static void     get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
  57
  58 /* headers signals */
  59 static void on_recpt_activated (ModestMailHeaderView *header_view, const gchar *address, ModestMsgView *msg_view);
  60 static void on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer userdata);
  61
  62 /* GtkHtml signals */
  63 static gboolean on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view);
  64 static gboolean on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
  65                                   ModestMsgView *msg_view);
  66 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view);
  67
  68 /* size allocation and drawing handlers */
  69 static void get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation);
  70 static void size_request (GtkWidget *widget, GtkRequisition *req);
  71 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
  72 static void realize (GtkWidget *widget);
  73 static void unrealize (GtkWidget *widget);
  74 static gint expose (GtkWidget *widget, GdkEventExpose *event);
  75 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
  76 static void set_hadjustment_values (ModestMsgView *msg_view, gboolean *value_changed);
  77 static void set_scroll_adjustments (ModestMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
  78 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
  79 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
  80 static void disconnect_vadjustment (ModestMsgView *obj);
  81 static void disconnect_hadjustment (ModestMsgView *obj);
  82
  83 /* GtkContainer methods */
  84 static void forall (GtkContainer *container, gboolean include_internals,
  85                     GtkCallback callback, gpointer userdata);
  86 static void container_remove (GtkContainer *container, GtkWidget *widget);
  87
  88 /* list my signals */
  89 enum {
  90         LINK_CLICKED_SIGNAL,
  91         LINK_HOVER_SIGNAL,
  92         ATTACHMENT_CLICKED_SIGNAL,
  93         RECPT_ACTIVATED_SIGNAL,
  94         LAST_SIGNAL
  95 };
  96
  97 /* list properties */
  98 enum {
  99         PROP_0,
 100         PROP_HADJUSTMENT,
 101         PROP_VADJUSTMENT,
 102         PROP_SHADOW_TYPE
 103 };
 104
 105 typedef struct _ModestMsgViewPrivate ModestMsgViewPrivate;
 106 struct _ModestMsgViewPrivate {
 107         GtkWidget   *gtkhtml;
 108         GtkWidget   *mail_header_view;
 109         GtkWidget   *attachments_view;
 110
 111         TnyMsg      *msg;
 112
 113         /* embedded elements */
 114         GtkWidget   *headers_box;
 115         GtkWidget   *html_scroll;
 116         GtkWidget   *attachments_box;
 117
 118         /* internal adjustments for set_scroll_adjustments */
 119         GtkAdjustment *hadj;
 120         GtkAdjustment *vadj;
 121         GtkShadowType shadow_type;
 122
 123         /* gdk windows for drawing */
 124         GdkWindow *view_window;
 125         GdkWindow *headers_window;
 126         GdkWindow *html_window;
 127
 128         gulong  sig1, sig2, sig3;
 129 };
 130 #define MODEST_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 131                                                  MODEST_TYPE_MSG_VIEW, \
 132                                                  ModestMsgViewPrivate))
 133 /* globals */
 134 static GtkContainerClass *parent_class = NULL;
 135
 136 /* uncomment the following if you have defined any signals */
 137 static guint signals[LAST_SIGNAL] = {0};
 138
 139 GType
 140 modest_msg_view_get_type (void)
 141 {
 142         static GType my_type = 0;
 143         if (!my_type) {
 144                 static const GTypeInfo my_info = {
 145                         sizeof(ModestMsgViewClass),
 146                         NULL,           /* base init */
 147                         NULL,           /* base finalize */
 148                         (GClassInitFunc) modest_msg_view_class_init,
 149                         NULL,           /* class finalize */
 150                         NULL,           /* class data */
 151                         sizeof(ModestMsgView),
 152                         1,              /* n_preallocs */
 153                         (GInstanceInitFunc) modest_msg_view_init,
 154                         NULL
 155                 };
 156                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 157                                                   "ModestMsgView",
 158                                                   &my_info, 0);
 159         }
 160         return my_type;
 161 }
 162
 163 static void
 164 modest_msg_view_class_init (ModestMsgViewClass *klass)
 165 {
 166         GObjectClass *gobject_class;
 167         GtkWidgetClass *widget_class;
 168         GtkObjectClass *gtkobject_class;
 169         GtkContainerClass *container_class;
 170         gobject_class = (GObjectClass*) klass;
 171         widget_class = (GtkWidgetClass *) klass;
 172         gtkobject_class = (GtkObjectClass *) klass;
 173         container_class = (GtkContainerClass *) klass;
 174
 175         parent_class            = g_type_class_peek_parent (klass);
 176         gobject_class->finalize = modest_msg_view_finalize;
 177         gobject_class->set_property = set_property;
 178         gobject_class->get_property = get_property;
 179         gtkobject_class->destroy = modest_msg_view_destroy;
 180
 181         widget_class->realize = realize;
 182         widget_class->unrealize = unrealize;
 183         widget_class->expose_event = expose;
 184         widget_class->size_request = size_request;
 185         widget_class->size_allocate = size_allocate;
 186
 187         container_class->forall = forall;
 188         container_class->remove = container_remove;
 189
 190         klass->set_scroll_adjustments = set_scroll_adjustments;
 191
 192         g_type_class_add_private (gobject_class, sizeof(ModestMsgViewPrivate));
 193
 194         g_object_class_install_property (gobject_class,
 195                                          PROP_HADJUSTMENT,
 196                                          g_param_spec_object ("hadjustment",
 197                                                               _("Horizontal adjustment"),
 198                                                               _("GtkAdjustment with information of the horizontal visible position"),
 199                                                               GTK_TYPE_ADJUSTMENT,
 200                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 201
 202         g_object_class_install_property (gobject_class,
 203                                          PROP_VADJUSTMENT,
 204                                          g_param_spec_object ("vadjustment",
 205                                                               _("Vertical adjustment"),
 206                                                               _("GtkAdjustment with information of the vertical visible position"),
 207                                                               GTK_TYPE_ADJUSTMENT,
 208                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 209
 210         g_object_class_install_property (gobject_class,
 211                                          PROP_SHADOW_TYPE,
 212                                          g_param_spec_enum ("shadow_type",
 213                                                             _("Shadow type"),
 214                                                             _("Kind of shadow that's shown around the view"),
 215                                                             GTK_TYPE_SHADOW_TYPE,
 216                                                             GTK_SHADOW_IN,
 217                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 218
 219         signals[LINK_CLICKED_SIGNAL] =
 220                 g_signal_new ("link_clicked",
 221                               G_TYPE_FROM_CLASS (gobject_class),
 222                               G_SIGNAL_RUN_FIRST,
 223                               G_STRUCT_OFFSET(ModestMsgViewClass, link_clicked),
 224                               NULL, NULL,
 225                               g_cclosure_marshal_VOID__STRING,
 226                               G_TYPE_NONE, 1, G_TYPE_STRING);
 227
 228         signals[ATTACHMENT_CLICKED_SIGNAL] =
 229                 g_signal_new ("attachment_clicked",
 230                               G_TYPE_FROM_CLASS (gobject_class),
 231                               G_SIGNAL_RUN_FIRST,
 232                               G_STRUCT_OFFSET(ModestMsgViewClass, attachment_clicked),
 233                               NULL, NULL,
 234                               g_cclosure_marshal_VOID__OBJECT,
 235                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
 236
 237         signals[LINK_HOVER_SIGNAL] =
 238                 g_signal_new ("link_hover",
 239                               G_TYPE_FROM_CLASS (gobject_class),
 240                               G_SIGNAL_RUN_FIRST,
 241                               G_STRUCT_OFFSET(ModestMsgViewClass, link_hover),
 242                               NULL, NULL,
 243                               g_cclosure_marshal_VOID__STRING,
 244                               G_TYPE_NONE, 1, G_TYPE_STRING);
 245
 246         signals[RECPT_ACTIVATED_SIGNAL] =
 247                 g_signal_new ("recpt_activated",
 248                               G_TYPE_FROM_CLASS (gobject_class),
 249                               G_SIGNAL_RUN_FIRST,
 250                               G_STRUCT_OFFSET(ModestMsgViewClass, recpt_activated),
 251                               NULL, NULL,
 252                               g_cclosure_marshal_VOID__STRING,
 253                               G_TYPE_NONE, 1, G_TYPE_STRING);
 254
 255         widget_class->set_scroll_adjustments_signal =
 256                 g_signal_new ("set_scroll_adjustments",
 257                               G_OBJECT_CLASS_TYPE (gobject_class),
 258                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 259                               G_STRUCT_OFFSET (ModestMsgViewClass, set_scroll_adjustments),
 260                               NULL, NULL,
 261                               modest_marshal_VOID__POINTER_POINTER,
 262                               G_TYPE_NONE, 2,
 263                               GTK_TYPE_ADJUSTMENT,
 264                               GTK_TYPE_ADJUSTMENT);
 265 }
 266
 267 static void
 268 set_property (GObject *object,
 269               guint prop_id,
 270               const GValue *value,
 271               GParamSpec *pspec)
 272 {
 273         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 274
 275         switch (prop_id) {
 276         case PROP_HADJUSTMENT:
 277                 modest_msg_view_set_hadjustment (msg_view, g_value_get_object (value));
 278                 break;
 279         case PROP_VADJUSTMENT:
 280                 modest_msg_view_set_vadjustment (msg_view, g_value_get_object (value));
 281                 break;
 282         case PROP_SHADOW_TYPE:
 283                 modest_msg_view_set_shadow_type (msg_view, g_value_get_enum (value));
 284                 break;
 285         default:
 286                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 287                 break;
 288         }
 289 }
 290
 291 static void
 292 get_property (GObject *object,
 293               guint prop_id,
 294               GValue *value,
 295               GParamSpec *pspec)
 296 {
 297         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 298         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 299
 300         switch (prop_id) {
 301         case PROP_HADJUSTMENT:
 302                 g_value_set_object (value, priv->hadj);
 303                 break;
 304         case PROP_VADJUSTMENT:
 305                 g_value_set_object (value, priv->vadj);
 306                 break;
 307         case PROP_SHADOW_TYPE:
 308                 g_value_set_enum (value, priv->shadow_type);
 309                 break;
 310         default:
 311                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 312                 break;
 313         }
 314 }
 315
 316 static void
 317 disconnect_hadjustment (ModestMsgView *msg_view)
 318 {
 319         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 320
 321         if (priv->hadj) {
 322                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, msg_view);
 323                 g_object_unref (priv->hadj);
 324                 priv->hadj = NULL;
 325         }
 326 }
 327
 328 static void
 329 disconnect_vadjustment (ModestMsgView *msg_view)
 330 {
 331         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 332
 333         if (priv->vadj) {
 334                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, msg_view);
 335                 g_object_unref (priv->vadj);
 336                 priv->vadj = NULL;
 337         }
 338 }
 339
 340 static void
 341 get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation)
 342 {
 343         /* This method gets the allocation of the widget in parent widget. It's the
 344            real position and size of the widget */
 345         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 346
 347         allocation->x = 0;
 348         allocation->y = 0;
 349
 350         if (priv->shadow_type != GTK_SHADOW_NONE) {
 351                 allocation->x = GTK_WIDGET (msg_view)->style->xthickness;
 352                 allocation->y = GTK_WIDGET (msg_view)->style->ythickness;
 353         }
 354
 355         allocation->width = MAX (1, (GTK_WIDGET (msg_view)->allocation.width) - allocation->x * 2);
 356         allocation->height = MAX (1, (GTK_WIDGET (msg_view)->allocation.height) - allocation->y * 2);
 357
 358 }
 359
 360 static void
 361 reclamp_adjustment (GtkAdjustment *adj,
 362                     gboolean *value_changed)
 363 {
 364         gdouble value = adj->value;
 365
 366         /* Correct value to be inside the expected values of a scroll */
 367
 368         value = CLAMP (value, 0, adj->upper - adj->page_size);
 369
 370         if (value != adj->value) {
 371                 adj->value = value;
 372                 if (value_changed)
 373                         *value_changed = TRUE;
 374         } else if (value_changed) {
 375                 *value_changed = FALSE;
 376         }
 377 }
 378
 379 static void
 380 set_hadjustment_values (ModestMsgView *msg_view,
 381                         gboolean *value_changed)
 382 {
 383         GtkAllocation view_allocation;
 384         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 385
 386         get_view_allocation (msg_view, &view_allocation);
 387         hadj->page_size = view_allocation.width;
 388         hadj->step_increment = view_allocation.width * 0.1;
 389         hadj->page_increment = view_allocation.width * 0.9;
 390
 391         hadj->lower = 0;
 392         hadj->upper = view_allocation.width;
 393
 394         reclamp_adjustment (hadj, value_changed);
 395
 396 }
 397
 398 static void
 399 set_vadjustment_values (ModestMsgView *msg_view,
 400                         gboolean *value_changed)
 401 {
 402         GtkAllocation view_allocation;
 403         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 404         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 405         gint full_height = 0;
 406         GtkAdjustment *html_vadj;
 407
 408         get_view_allocation (msg_view, &view_allocation);
 409         vadj->page_size = view_allocation.height;
 410         vadj->step_increment = view_allocation.height * 0.1;
 411         vadj->page_increment = view_allocation.height * 0.9;
 412
 413         vadj->lower = 0;
 414
 415         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 416                 GtkRequisition child_requisition;
 417
 418                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 419                 full_height = child_requisition.height;
 420         } else {
 421                 full_height = 0;
 422         }
 423
 424         /* Get the real height of the embedded html */
 425         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 426                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 427                 full_height += html_vadj->upper;
 428         }
 429
 430         vadj->upper = MAX (view_allocation.height, full_height);
 431
 432         reclamp_adjustment (vadj, value_changed);
 433
 434 }
 435
 436 static void
 437 set_scroll_adjustments (ModestMsgView *msg_view,
 438                         GtkAdjustment *hadj,
 439                         GtkAdjustment *vadj)
 440 {
 441         modest_msg_view_set_hadjustment (msg_view, hadj);
 442         modest_msg_view_set_vadjustment (msg_view, vadj);
 443 }
 444
 445 static void
 446 realize (GtkWidget *widget)
 447 {
 448         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 449         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 450         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 451         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 452         GdkWindowAttr attributes;
 453         gint event_mask;
 454         gint attributes_mask;
 455         GtkAllocation view_allocation;
 456
 457         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 458
 459         /* The structure of the GdkWindow's is:
 460          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 461          *    * view_window: a backing store gdkwindow containing the headers and contents
 462          *      being scrolled. This window should have all the visible and non visible
 463          *      widgets inside.
 464          *    * headers_window: gdk window for headers_box.
 465          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 466          *      gtkhtml showing the contents of the mail).
 467          */
 468
 469         attributes.x = widget->allocation.x;
 470         attributes.y = widget->allocation.y;
 471         attributes.width = widget->allocation.width;
 472         attributes.height = widget->allocation.height;
 473         attributes.window_type = GDK_WINDOW_CHILD;
 474         attributes.wclass = GDK_INPUT_OUTPUT;
 475         attributes.visual = gtk_widget_get_visual (widget);
 476         attributes.colormap = gtk_widget_get_colormap (widget);
 477
 478         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 479         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 480         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 481
 482         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 483                                          &attributes, attributes_mask);
 484         gdk_window_set_user_data (widget->window, msg_view);
 485
 486         get_view_allocation (msg_view, &view_allocation);
 487
 488         attributes.x = view_allocation.x;
 489         attributes.y = view_allocation.y;
 490         attributes.width = view_allocation.width;
 491         attributes.height = view_allocation.height;
 492         attributes.event_mask = 0;
 493         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 494         gdk_window_set_user_data (priv->view_window, msg_view);
 495         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 496
 497         attributes.x = -hadj->value;
 498         attributes.y = -vadj->value;
 499         attributes.width = hadj->upper;
 500         if (priv->headers_box)
 501                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 502         else
 503                 attributes.height = 1;
 504         attributes.event_mask = event_mask;
 505
 506         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 507         gdk_window_set_user_data (priv->headers_window, msg_view);
 508
 509         if (priv->headers_box)
 510                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 511
 512         attributes.x = -hadj->value;
 513         if (priv->headers_box)
 514                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 515         else
 516                 attributes.y = -vadj->value;
 517         attributes.width = hadj->upper;
 518         if (priv->headers_box)
 519                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 520         else
 521                 attributes.height = vadj->upper;
 522         attributes.event_mask = event_mask;
 523
 524         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 525         gdk_window_set_user_data (priv->html_window, msg_view);
 526
 527         if (priv->html_scroll)
 528                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 529
 530         widget->style = gtk_style_attach (widget->style, widget->window);
 531         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 532         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 533         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 534
 535         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 536                            GTK_SHADOW_NONE,
 537                            NULL, widget, "msgviewheaders",
 538                            0,0,-1,-1);
 539         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 540                            GTK_SHADOW_NONE,
 541                            NULL, widget, "msgviewcontents",
 542                            0,0,-1,-1);
 543
 544         gdk_window_show (priv->view_window);
 545         gdk_window_show (priv->headers_window);
 546         gdk_window_show (priv->html_window);
 547
 548 }
 549
 550 static void
 551 unrealize (GtkWidget *widget)
 552 {
 553         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 554         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 555
 556         gdk_window_set_user_data (priv->view_window, NULL);
 557         gdk_window_destroy (priv->view_window);
 558         priv->view_window = NULL;
 559
 560         gdk_window_set_user_data (priv->headers_window, NULL);
 561         gdk_window_destroy (priv->headers_window);
 562         priv->headers_window = NULL;
 563
 564         gdk_window_set_user_data (priv->html_window, NULL);
 565         gdk_window_destroy (priv->html_window);
 566         priv->html_window = NULL;
 567
 568         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 569                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 570
 571 }
 572
 573 static gint
 574 expose (GtkWidget *widget,
 575         GdkEventExpose *event)
 576 {
 577         ModestMsgView *msg_view;
 578         ModestMsgViewPrivate *priv;
 579
 580         if (GTK_WIDGET_DRAWABLE (widget)) {
 581                 msg_view = MODEST_MSG_VIEW (widget);
 582                 priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 583                 if (event->window == widget->window) {
 584                         gtk_paint_shadow (widget->style, widget->window,
 585                                           GTK_STATE_NORMAL, priv->shadow_type,
 586                                           &event->area, widget, "msgview",
 587                                           0,0,-1,-1);
 588                 } else if (event->window == priv->headers_window) {
 589                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 590                                            GTK_SHADOW_NONE,
 591                                            &event->area, widget, "msgviewheaders",
 592                                            0,0,-1,-1);
 593                 } else if (event->window == priv->html_window) {
 594                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 595                                            GTK_SHADOW_NONE,
 596                                            &event->area, widget, "msgviewcontents",
 597                                            0,0,-1,-1);
 598                 }
 599                 if (priv->headers_box)
 600                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->headers_box, event);
 601                 if (priv->html_scroll)
 602                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->html_scroll, event);
 603                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 604         }
 605
 606         return FALSE;
 607 }
 608
 609 static void
 610 forall (GtkContainer *container,
 611         gboolean include_internals,
 612         GtkCallback callback,
 613         gpointer userdata)
 614 {
 615         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 616         g_return_if_fail (callback != NULL);
 617
 618         if (priv->headers_box)
 619                 (*callback) (priv->headers_box, userdata);
 620         if (priv->html_scroll)
 621                 (*callback) (priv->html_scroll, userdata);
 622 }
 623
 624 static void
 625 container_remove (GtkContainer *container,
 626                   GtkWidget *widget)
 627 {
 628         gboolean was_visible = FALSE;
 629         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 630         was_visible = GTK_WIDGET_VISIBLE (widget);
 631         if (widget == priv->headers_box) {
 632                 gtk_widget_unparent (priv->headers_box);
 633                 priv->headers_box = NULL;
 634         } else if (widget == priv->html_scroll) {
 635                 gtk_widget_unparent (priv->html_scroll);
 636                 priv->html_scroll = NULL;
 637         } else {
 638                 return;
 639         }
 640         if (was_visible)
 641                 gtk_widget_queue_resize (GTK_WIDGET(container));
 642
 643 }
 644
 645 static void
 646 size_request (GtkWidget *widget,
 647               GtkRequisition *req)
 648 {
 649         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (widget);
 650         GtkRequisition child_req;
 651
 652         req->width = 0;
 653         req->height = 0;
 654
 655         gtk_widget_size_request (priv->headers_box, &child_req);
 656         req->width = child_req.width;
 657         req->height += child_req.height;
 658         gtk_widget_size_request (priv->html_scroll, &child_req);
 659         req->width = MAX (child_req.width, req->width);
 660         req->height += child_req.height;
 661
 662 }
 663
 664 static void
 665 size_allocate (GtkWidget *widget,
 666                GtkAllocation *allocation)
 667 {
 668         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 669         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 670         gboolean hadj_value_changed, vadj_value_changed;
 671         GtkAllocation headers_allocation, html_allocation, view_allocation;
 672         GtkAdjustment *html_vadj;
 673
 674         if (GTK_WIDGET_MAPPED (widget) &&
 675             priv->shadow_type != GTK_SHADOW_NONE &&
 676             (allocation->width != widget->allocation.width ||
 677              allocation->height != widget->allocation.height))
 678                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 679
 680         widget->allocation = *allocation;
 681         set_hadjustment_values (msg_view, &hadj_value_changed);
 682         set_vadjustment_values (msg_view, &vadj_value_changed);
 683
 684         get_view_allocation (msg_view, &view_allocation);
 685
 686         headers_allocation.x = 0;
 687         headers_allocation.y = 0;
 688         headers_allocation.width = view_allocation.width;
 689         if (priv->headers_box)
 690                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 691         else
 692                 headers_allocation.height = 0;
 693
 694         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 695
 696         html_allocation.x = 0;
 697         html_allocation.y = headers_allocation.height;
 698         html_allocation.width = view_allocation.width;
 699         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 700
 701         if (GTK_WIDGET_REALIZED (widget)) {
 702                 gdk_window_move_resize (widget->window,
 703                                         allocation->x,
 704                                         allocation->y,
 705                                         allocation->width,
 706                                         allocation->height);
 707
 708                 gdk_window_move_resize (priv->view_window,
 709                                         view_allocation.x,
 710                                         view_allocation.y,
 711                                         view_allocation.width,
 712                                         view_allocation.height);
 713                 gdk_window_move_resize (priv->headers_window,
 714                                         0,
 715                                         (gint) (- priv->vadj->value),
 716                                         allocation->width,
 717                                         headers_allocation.height);
 718                 gdk_window_move_resize (priv->html_window,
 719                                         (gint) (- priv->hadj->value),
 720                                         (gint) (html_allocation.y - priv->vadj->value),
 721                                         (gint) priv->hadj->upper,
 722                                         html_allocation.height);
 723         }
 724
 725         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 726                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 727         }
 728         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 729                 html_allocation.x = 0;
 730                 html_allocation.y = 0;
 731                 html_allocation.width = (gint) priv->hadj->upper;
 732                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 733                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 734         }
 735         gtk_adjustment_changed (priv->hadj);
 736         gtk_adjustment_changed (priv->vadj);
 737
 738         if (hadj_value_changed)
 739                 gtk_adjustment_value_changed (priv->hadj);
 740         if (vadj_value_changed)
 741                 gtk_adjustment_value_changed (priv->vadj);
 742
 743 }
 744
 745 static void
 746 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 747 {
 748         ModestMsgView *msg_view = NULL;
 749         ModestMsgViewPrivate *priv = NULL;
 750
 751         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 752         g_return_if_fail (MODEST_IS_MSG_VIEW (data));
 753
 754         msg_view = MODEST_MSG_VIEW (data);
 755         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 756
 757         if (GTK_WIDGET_REALIZED (msg_view)) {
 758                 GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 759                 GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 760                 gint headers_offset = 0;
 761
 762                 gtk_widget_queue_resize (priv->html_scroll);
 763
 764                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 765                         gint old_x, old_y;
 766                         gint new_x, new_y;
 767                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 768                         new_x = 0;
 769                         new_y = -vadj->value;
 770
 771                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 772
 773                         if (new_x != old_x || new_y != old_y) {
 774                                 gdk_window_move (priv->headers_window, new_x, new_y);
 775                                 gdk_window_process_updates (priv->headers_window, TRUE);
 776                         }
 777                 }
 778
 779                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 780                         gint old_x, old_y;
 781                         gint new_x, new_y;
 782                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 783                         new_x = -hadj->value;
 784                         new_y = headers_offset - vadj->value;
 785
 786                         if (new_x != old_x || new_y != old_y) {
 787                                 gdk_window_move (priv->html_window, new_x, new_y);
 788                                 gdk_window_process_updates (priv->html_window, TRUE);
 789                         }
 790                 }
 791
 792         }
 793 }
 794
 795 static void
 796 html_adjustment_changed (GtkAdjustment *adj,
 797                          gpointer userdata)
 798 {
 799         ModestMsgView *msg_view = MODEST_MSG_VIEW (userdata);
 800         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 801         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 802         gboolean vadj_changed;
 803         gint new_height;
 804
 805         priv->html_scroll->requisition.height = html_vadj->upper;
 806         priv->html_scroll->allocation.height = html_vadj->upper;
 807
 808         set_vadjustment_values (msg_view, &vadj_changed);
 809
 810         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
 811
 812         gtk_adjustment_changed (priv->vadj);
 813         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
 814                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
 815                 gdk_window_process_updates (priv->view_window, TRUE);
 816                 gtk_container_resize_children (GTK_CONTAINER (msg_view));
 817         }
 818
 819 }
 820
 821 static void
 822 modest_msg_view_init (ModestMsgView *obj)
 823 {
 824         ModestMsgViewPrivate *priv;
 825         GtkAdjustment *html_vadj;
 826
 827         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
 828         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
 829         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
 830         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
 831
 832         priv = MODEST_MSG_VIEW_GET_PRIVATE(obj);
 833
 834         priv->hadj = NULL;
 835         priv->vadj = NULL;
 836         priv->shadow_type = GTK_SHADOW_IN;
 837         priv->view_window = NULL;
 838         priv->headers_window = NULL;
 839         priv->html_window = NULL;
 840
 841
 842         gtk_widget_push_composite_child ();
 843         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
 844         gtk_widget_set_composite_name (priv->html_scroll, "contents");
 845         gtk_widget_pop_composite_child ();
 846         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 847
 848         priv->msg                     = NULL;
 849
 850         priv->gtkhtml                 = gtk_html_new();
 851         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 852         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 853         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 854         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 855         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 856
 857         priv->mail_header_view        = GTK_WIDGET(modest_mail_header_view_new ());
 858         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
 859
 860         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
 861
 862         priv->sig1 = g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 863                                        G_CALLBACK(on_link_clicked), obj);
 864         priv->sig2 = g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 865                                        G_CALLBACK(on_url_requested), obj);
 866         priv->sig3 = g_signal_connect (G_OBJECT(priv->gtkhtml), "on_url",
 867                                        G_CALLBACK(on_link_hover), obj);
 868
 869         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
 870                           G_CALLBACK (on_recpt_activated), obj);
 871
 872         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
 873                           G_CALLBACK (on_attachment_activated), obj);
 874
 875         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 876
 877         g_signal_connect (G_OBJECT (html_vadj), "changed",
 878                           G_CALLBACK (html_adjustment_changed), obj);
 879
 880 }
 881
 882
 883 static void
 884 modest_msg_view_finalize (GObject *obj)
 885 {
 886         ModestMsgViewPrivate *priv;
 887         priv = MODEST_MSG_VIEW_GET_PRIVATE (obj);
 888
 889         if (priv->msg) {
 890                 g_object_unref (G_OBJECT(priv->msg));
 891                 priv->msg = NULL;
 892         }
 893
 894         /* we cannot disconnect sigs, because priv->gtkhtml is
 895          * already dead */
 896
 897         disconnect_vadjustment (MODEST_MSG_VIEW(obj));
 898         disconnect_hadjustment (MODEST_MSG_VIEW(obj));
 899
 900         priv->gtkhtml = NULL;
 901         priv->attachments_view = NULL;
 902
 903         G_OBJECT_CLASS(parent_class)->finalize (obj);
 904 }
 905
 906 static void
 907 modest_msg_view_destroy (GtkObject *obj)
 908 {
 909         disconnect_vadjustment (MODEST_MSG_VIEW(obj));
 910         disconnect_hadjustment (MODEST_MSG_VIEW(obj));
 911
 912         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
 913 }
 914
 915 GtkAdjustment *
 916 modest_msg_view_get_vadjustment (ModestMsgView *msg_view)
 917 {
 918         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 919
 920         if (!priv->vadj)
 921                 modest_msg_view_set_vadjustment (msg_view, NULL);
 922
 923         return priv->vadj;
 924
 925 }
 926
 927 GtkAdjustment *
 928 modest_msg_view_get_hadjustment (ModestMsgView *msg_view)
 929 {
 930         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 931
 932         if (!priv->hadj)
 933                 modest_msg_view_set_hadjustment (msg_view, NULL);
 934
 935         return priv->hadj;
 936
 937 }
 938
 939 void
 940 modest_msg_view_set_hadjustment (ModestMsgView *msg_view, GtkAdjustment *hadj)
 941 {
 942         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 943         gboolean value_changed;
 944
 945         if (hadj && hadj == priv->hadj)
 946                 return;
 947
 948         if (!hadj)
 949                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
 950         disconnect_hadjustment (msg_view);
 951         g_object_ref (G_OBJECT (hadj));
 952         gtk_object_sink (GTK_OBJECT (hadj));
 953         priv->hadj = hadj;
 954         set_hadjustment_values (msg_view, &value_changed);
 955
 956         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
 957                           msg_view);
 958
 959         gtk_adjustment_changed (hadj);
 960         if (value_changed)
 961                 gtk_adjustment_value_changed (hadj);
 962         else
 963                 adjustment_value_changed (hadj, msg_view);
 964
 965         g_object_notify (G_OBJECT (msg_view), "hadjustment");
 966 }
 967
 968 void
 969 modest_msg_view_set_vadjustment (ModestMsgView *msg_view, GtkAdjustment *vadj)
 970 {
 971         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 972         gboolean value_changed;
 973
 974         if (vadj && vadj == priv->vadj)
 975                 return;
 976
 977         if (!vadj)
 978                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
 979         disconnect_vadjustment (msg_view);
 980         g_object_ref (G_OBJECT (vadj));
 981         gtk_object_sink (GTK_OBJECT (vadj));
 982         priv->vadj = vadj;
 983         set_vadjustment_values (msg_view, &value_changed);
 984
 985         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
 986                           msg_view);
 987
 988         gtk_adjustment_changed (vadj);
 989         if (value_changed)
 990                 gtk_adjustment_value_changed (vadj);
 991         else
 992                 adjustment_value_changed (vadj, msg_view);
 993
 994         g_object_notify (G_OBJECT (msg_view), "vadjustment");
 995 }
 996
 997 /**
 998  * modest_msg_view_set_shadow_type:
 999  * @msg_view: a #ModestMsgView.
1000  * @shadow_type: new shadow type.
1001  *
1002  * Sets a shadow type of the message view.
1003  **/
1004 void
1005 modest_msg_view_set_shadow_type (ModestMsgView *msg_view,
1006                                  GtkShadowType shadow_type)
1007 {
1008         ModestMsgViewPrivate *priv;
1009         g_return_if_fail (MODEST_IS_MSG_VIEW (msg_view));
1010
1011         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1012
1013         if (priv->shadow_type != shadow_type) {
1014                 priv->shadow_type = shadow_type;
1015
1016                 if (GTK_WIDGET_VISIBLE (msg_view)) {
1017                         gtk_widget_size_allocate (GTK_WIDGET (msg_view), &(GTK_WIDGET (msg_view)->allocation));
1018                         gtk_widget_queue_draw (GTK_WIDGET (msg_view));
1019                 }
1020                 g_object_notify (G_OBJECT (msg_view), "shadow-type");
1021         }
1022 }
1023
1024 /**
1025  * modest_msg_view_get_shadow_type:
1026  * @msg_view: a #ModestMsgView
1027  *
1028  * Gets the current shadow type of the #ModestMsgView.
1029  *
1030  * Return value: the shadow type
1031  **/
1032 GtkShadowType
1033 modest_msg_view_get_shadow_type (ModestMsgView *msg_view)
1034 {
1035         ModestMsgViewPrivate *priv;
1036         g_return_val_if_fail (MODEST_IS_MSG_VIEW (msg_view), GTK_SHADOW_NONE);
1037         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1038
1039         return priv->shadow_type;
1040 }
1041
1042 GtkWidget*
1043 modest_msg_view_new (TnyMsg *msg)
1044 {
1045         GObject *obj;
1046         ModestMsgView* self;
1047         ModestMsgViewPrivate *priv;
1048
1049         obj  = G_OBJECT(g_object_new(MODEST_TYPE_MSG_VIEW, NULL));
1050         self = MODEST_MSG_VIEW(obj);
1051         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1052
1053         gtk_widget_push_composite_child ();
1054         priv->headers_box = gtk_vbox_new (0, FALSE);
1055         gtk_widget_set_composite_name (priv->headers_box, "headers");
1056         gtk_widget_pop_composite_child ();
1057
1058         if (priv->mail_header_view)
1059                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1060
1061         if (priv->attachments_view) {
1062                 priv->attachments_box = (GtkWidget *) modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1063                                                                                                  _("Attachments:"), priv->attachments_view,
1064                                                                                                  FALSE, FALSE);
1065                 gtk_widget_hide_all (priv->attachments_box);
1066 /*              gtk_widget_set_no_show_all (priv->attachments_box, TRUE); */
1067         }
1068
1069         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (self));
1070
1071         if (priv->gtkhtml) {
1072                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->gtkhtml);
1073                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(self));
1074         }
1075
1076         modest_msg_view_set_message (self, msg);
1077
1078         return GTK_WIDGET(self);
1079 }
1080
1081 static void
1082 on_recpt_activated (ModestMailHeaderView *header_view,
1083                     const gchar *address,
1084                     ModestMsgView * view)
1085 {
1086         g_signal_emit (G_OBJECT (view), signals[RECPT_ACTIVATED_SIGNAL], 0, address);
1087 }
1088
1089 static void
1090 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer msg_view)
1091 {
1092
1093         g_signal_emit (G_OBJECT(msg_view), signals[ATTACHMENT_CLICKED_SIGNAL],
1094                        0, mime_part);
1095 }
1096
1097 static gboolean
1098 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1099 {
1100         g_return_val_if_fail (msg_view, FALSE);
1101
1102         g_signal_emit (G_OBJECT(msg_view), signals[LINK_CLICKED_SIGNAL],
1103                        0, uri);
1104
1105         return FALSE;
1106 }
1107
1108
1109 static gboolean
1110 on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1111 {
1112         g_signal_emit (G_OBJECT(msg_view), signals[LINK_HOVER_SIGNAL],
1113                        0, uri);
1114
1115         return FALSE;
1116 }
1117
1118
1119
1120 static TnyMimePart *
1121 find_cid_image (TnyMsg *msg, const gchar *cid)
1122 {
1123         TnyMimePart *part = NULL;
1124         TnyList *parts;
1125         TnyIterator *iter;
1126
1127         g_return_val_if_fail (msg, NULL);
1128         g_return_val_if_fail (cid, NULL);
1129
1130         parts  = TNY_LIST (tny_simple_list_new());
1131
1132         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1133         iter   = tny_list_create_iterator (parts);
1134
1135         while (!tny_iterator_is_done(iter)) {
1136                 const gchar *part_cid;
1137                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1138                 part_cid = tny_mime_part_get_content_id (part);
1139
1140                 if (part_cid && strcmp (cid, part_cid) == 0)
1141                         break;
1142
1143                 g_object_unref (G_OBJECT(part));
1144
1145                 part = NULL;
1146                 tny_iterator_next (iter);
1147         }
1148
1149         g_object_unref (G_OBJECT(iter));
1150         g_object_unref (G_OBJECT(parts));
1151
1152         return part;
1153 }
1154
1155
1156 static gboolean
1157 on_url_requested (GtkWidget *widget, const gchar *uri,
1158                   GtkHTMLStream *stream, ModestMsgView *msg_view)
1159 {
1160         ModestMsgViewPrivate *priv;
1161         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1162
1163         if (g_str_has_prefix (uri, "cid:")) {
1164                 /* +4 ==> skip "cid:" */
1165                 TnyMimePart *part = find_cid_image (priv->msg, uri + 4);
1166                 if (!part) {
1167                         g_printerr ("modest: '%s' not found\n", uri + 4);
1168                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
1169                 } else {
1170                         TnyStream *tny_stream =
1171                                 TNY_STREAM(modest_tny_stream_gtkhtml_new(stream));
1172                         tny_mime_part_decode_to_stream ((TnyMimePart*)part,
1173                                                                   tny_stream);
1174                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
1175
1176                         g_object_unref (G_OBJECT(tny_stream));
1177                         g_object_unref (G_OBJECT(part));
1178                 }
1179         }
1180
1181         return TRUE;
1182 }
1183
1184 static gboolean
1185 set_html_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1186 {
1187         GtkHTMLStream *gtkhtml_stream;
1188         TnyStream *tny_stream;
1189         ModestMsgViewPrivate *priv;
1190
1191         g_return_val_if_fail (self, FALSE);
1192         g_return_val_if_fail (tny_body, FALSE);
1193
1194         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1195
1196         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1197
1198         tny_stream     = TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1199         tny_stream_reset (tny_stream);
1200
1201         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, tny_stream);
1202         g_object_unref (G_OBJECT(tny_stream));
1203
1204         gtk_html_stream_destroy (gtkhtml_stream);
1205
1206         return TRUE;
1207 }
1208
1209
1210 /* FIXME: this is a hack --> we use the tny_text_buffer_stream to
1211  * get the message text, then write to gtkhtml 'by hand' */
1212 static gboolean
1213 set_text_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1214 {
1215         GtkTextBuffer *buf;
1216         GtkTextIter begin, end;
1217         TnyStream* txt_stream, *tny_stream;
1218         GtkHTMLStream *gtkhtml_stream;
1219         gchar *txt;
1220         ModestMsgViewPrivate *priv;
1221
1222         g_return_val_if_fail (self, FALSE);
1223         g_return_val_if_fail (tny_body, FALSE);
1224
1225         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1226
1227         buf            = gtk_text_buffer_new (NULL);
1228         txt_stream     = TNY_STREAM(tny_gtk_text_buffer_stream_new (buf));
1229
1230         tny_stream_reset (txt_stream);
1231
1232         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1233         tny_stream =  TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1234
1235         // FIXME: tinymail
1236         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, txt_stream);
1237         tny_stream_reset (txt_stream);
1238
1239         gtk_text_buffer_get_bounds (buf, &begin, &end);
1240         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
1241         if (txt) {
1242                 gchar *html = modest_text_utils_convert_to_html (txt);
1243                 tny_stream_write (tny_stream, html, strlen(html));
1244                 tny_stream_reset (tny_stream);
1245                 g_free (txt);
1246                 g_free (html);
1247         }
1248
1249         g_object_unref (G_OBJECT(tny_stream));
1250         g_object_unref (G_OBJECT(txt_stream));
1251         g_object_unref (G_OBJECT(buf));
1252
1253         gtk_html_stream_destroy (gtkhtml_stream);
1254
1255         return TRUE;
1256 }
1257
1258
1259 static gboolean
1260 set_empty_message (ModestMsgView *self)
1261 {
1262         ModestMsgViewPrivate *priv;
1263
1264         g_return_val_if_fail (self, FALSE);
1265         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1266
1267         gtk_html_load_from_string (GTK_HTML(priv->gtkhtml),
1268                                    "", 1);
1269
1270         return TRUE;
1271 }
1272
1273
1274 void
1275 modest_msg_view_set_message (ModestMsgView *self, TnyMsg *msg)
1276 {
1277         TnyMimePart *body;
1278         ModestMsgViewPrivate *priv;
1279         TnyHeader *header;
1280
1281         g_return_if_fail (self);
1282
1283         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1284         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1285
1286         if (msg != priv->msg) {
1287                 if (priv->msg)
1288                         g_object_unref (G_OBJECT(priv->msg));
1289                 if (msg)
1290                         g_object_ref   (G_OBJECT(msg));
1291                 priv->msg = msg;
1292         }
1293
1294         if (!msg) {
1295                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1296                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1297                 gtk_widget_hide_all (priv->mail_header_view);
1298                 gtk_widget_hide_all (priv->attachments_box);
1299                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1300                 set_empty_message (self);
1301                 gtk_widget_queue_resize (GTK_WIDGET(self));
1302                 gtk_widget_queue_draw (GTK_WIDGET(self));
1303                 return;
1304         }
1305
1306         header = tny_msg_get_header (msg);
1307         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1308         g_object_unref (header);
1309
1310         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1311                                              msg);
1312
1313         body = modest_tny_msg_find_body_part (msg,TRUE);
1314         if (body) {
1315                 GList *att_children;
1316                 if (tny_mime_part_content_type_is (body, "text/html"))
1317                         set_html_message (self, body, msg);
1318                 else
1319                         set_text_message (self, body, msg);
1320
1321                 att_children = gtk_container_get_children (GTK_CONTAINER (priv->attachments_view));
1322                 if (att_children != NULL) {
1323                         gtk_widget_show_all (priv->attachments_box);
1324                         g_list_free (att_children);
1325                 } else {
1326                         gtk_widget_hide_all (priv->attachments_box);
1327                 }
1328
1329         } else
1330                 set_empty_message (self);
1331
1332         gtk_widget_show (priv->gtkhtml);
1333         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1334         gtk_widget_show_all (priv->mail_header_view);
1335         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1336 /*      gtk_widget_show_all (priv->attachments_box); */
1337 /*      gtk_widget_show_all (priv->attachments_box); */
1338         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1339         gtk_widget_queue_resize (GTK_WIDGET(self));
1340         gtk_widget_queue_draw (GTK_WIDGET(self));
1341
1342         if (priv->hadj != NULL)
1343                 priv->hadj->value = 0.0;
1344         if (priv->vadj != NULL)
1345                 priv->vadj->value = 0.0;
1346
1347 }
1348
1349
1350 TnyMsg*
1351 modest_msg_view_get_message (ModestMsgView *self)
1352 {
1353         g_return_val_if_fail (self, NULL);
1354
1355         return MODEST_MSG_VIEW_GET_PRIVATE(self)->msg;
1356 }
1357