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 <gtkhtml/gtkhtml-search.h>
  39 #include <gtkhtml/gtkhtml-embedded.h>
  40 #include <tny-list.h>
  41 #include <tny-simple-list.h>
  42
  43 #include <modest-tny-msg.h>
  44 #include <modest-text-utils.h>
  45 #include "modest-msg-view.h"
  46 #include "modest-tny-stream-gtkhtml.h"
  47 #include <modest-mail-header-view.h>
  48 #include <modest-attachments-view.h>
  49 #include <modest-marshal.h>
  50
  51
  52 /* 'private'/'protected' functions */
  53 static void     modest_msg_view_class_init   (ModestMsgViewClass *klass);
  54 static void     modest_msg_view_init         (ModestMsgView *obj);
  55 static void     modest_msg_view_finalize     (GObject *obj);
  56 static void     modest_msg_view_destroy     (GtkObject *obj);
  57 static void     set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
  58 static void     get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
  59
  60 /* headers signals */
  61 static void on_recpt_activated (ModestMailHeaderView *header_view, const gchar *address, ModestMsgView *msg_view);
  62 static void on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer userdata);
  63
  64 /* GtkHtml signals */
  65 static gboolean on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view);
  66 static gboolean on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
  67                                   ModestMsgView *msg_view);
  68 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view);
  69
  70 #ifdef MAEMO_CHANGES
  71 static void     on_tap_and_hold (GtkWidget *widget, gpointer userdata);
  72 #endif /*MAEMO_CHANGES*/
  73
  74
  75 /* size allocation and drawing handlers */
  76 static void get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation);
  77 static void size_request (GtkWidget *widget, GtkRequisition *req);
  78 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
  79 static void realize (GtkWidget *widget);
  80 static void unrealize (GtkWidget *widget);
  81 static gint expose (GtkWidget *widget, GdkEventExpose *event);
  82 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
  83 static void set_hadjustment_values (ModestMsgView *msg_view, gboolean *value_changed);
  84 static void set_scroll_adjustments (ModestMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
  85 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
  86 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
  87 static void disconnect_vadjustment (ModestMsgView *obj);
  88 static void disconnect_hadjustment (ModestMsgView *obj);
  89 static gboolean idle_readjust_scroll (ModestMsgView *obj);
  90
  91 /* GtkContainer methods */
  92 static void forall (GtkContainer *container, gboolean include_internals,
  93                     GtkCallback callback, gpointer userdata);
  94 static void container_remove (GtkContainer *container, GtkWidget *widget);
  95
  96 /* list my signals */
  97 enum {
  98         LINK_CLICKED_SIGNAL,
  99         LINK_HOVER_SIGNAL,
 100         ATTACHMENT_CLICKED_SIGNAL,
 101         RECPT_ACTIVATED_SIGNAL,
 102         LINK_CONTEXTUAL_SIGNAL,
 103         LAST_SIGNAL
 104 };
 105
 106 /* list properties */
 107 enum {
 108         PROP_0,
 109         PROP_HADJUSTMENT,
 110         PROP_VADJUSTMENT,
 111         PROP_SHADOW_TYPE
 112 };
 113
 114 typedef struct _ModestMsgViewPrivate ModestMsgViewPrivate;
 115 struct _ModestMsgViewPrivate {
 116         GtkWidget   *gtkhtml;
 117         GtkWidget   *mail_header_view;
 118         GtkWidget   *attachments_view;
 119
 120         TnyMsg      *msg;
 121
 122         /* embedded elements */
 123         GtkWidget   *headers_box;
 124         GtkWidget   *html_scroll;
 125         GtkWidget   *attachments_box;
 126
 127         /* internal adjustments for set_scroll_adjustments */
 128         GtkAdjustment *hadj;
 129         GtkAdjustment *vadj;
 130         GtkShadowType shadow_type;
 131
 132         /* gdk windows for drawing */
 133         GdkWindow *view_window;
 134         GdkWindow *headers_window;
 135         GdkWindow *html_window;
 136
 137         /* zoom */
 138         gdouble current_zoom;
 139
 140         /* link click management */
 141         gchar *last_url;
 142
 143         TnyHeaderFlags priority_flags;
 144
 145         gulong  sig1, sig2, sig3;
 146 };
 147 #define MODEST_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 148                                                  MODEST_TYPE_MSG_VIEW, \
 149                                                  ModestMsgViewPrivate))
 150 /* globals */
 151 static GtkContainerClass *parent_class = NULL;
 152
 153 /* uncomment the following if you have defined any signals */
 154 static guint signals[LAST_SIGNAL] = {0};
 155
 156 GType
 157 modest_msg_view_get_type (void)
 158 {
 159         static GType my_type = 0;
 160         if (!my_type) {
 161                 static const GTypeInfo my_info = {
 162                         sizeof(ModestMsgViewClass),
 163                         NULL,           /* base init */
 164                         NULL,           /* base finalize */
 165                         (GClassInitFunc) modest_msg_view_class_init,
 166                         NULL,           /* class finalize */
 167                         NULL,           /* class data */
 168                         sizeof(ModestMsgView),
 169                         1,              /* n_preallocs */
 170                         (GInstanceInitFunc) modest_msg_view_init,
 171                         NULL
 172                 };
 173                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 174                                                   "ModestMsgView",
 175                                                   &my_info, 0);
 176         }
 177         return my_type;
 178 }
 179
 180 static void
 181 modest_msg_view_class_init (ModestMsgViewClass *klass)
 182 {
 183         GObjectClass *gobject_class;
 184         GtkWidgetClass *widget_class;
 185         GtkObjectClass *gtkobject_class;
 186         GtkContainerClass *container_class;
 187         gobject_class = (GObjectClass*) klass;
 188         widget_class = (GtkWidgetClass *) klass;
 189         gtkobject_class = (GtkObjectClass *) klass;
 190         container_class = (GtkContainerClass *) klass;
 191
 192         parent_class            = g_type_class_peek_parent (klass);
 193         gobject_class->finalize = modest_msg_view_finalize;
 194         gobject_class->set_property = set_property;
 195         gobject_class->get_property = get_property;
 196         gtkobject_class->destroy = modest_msg_view_destroy;
 197
 198         widget_class->realize = realize;
 199         widget_class->unrealize = unrealize;
 200         widget_class->expose_event = expose;
 201         widget_class->size_request = size_request;
 202         widget_class->size_allocate = size_allocate;
 203
 204         container_class->forall = forall;
 205         container_class->remove = container_remove;
 206
 207         klass->set_scroll_adjustments = set_scroll_adjustments;
 208
 209         g_type_class_add_private (gobject_class, sizeof(ModestMsgViewPrivate));
 210
 211         g_object_class_install_property (gobject_class,
 212                                          PROP_HADJUSTMENT,
 213                                          g_param_spec_object ("hadjustment",
 214                                                               _("Horizontal adjustment"),
 215                                                               _("GtkAdjustment with information of the horizontal visible position"),
 216                                                               GTK_TYPE_ADJUSTMENT,
 217                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 218
 219         g_object_class_install_property (gobject_class,
 220                                          PROP_VADJUSTMENT,
 221                                          g_param_spec_object ("vadjustment",
 222                                                               _("Vertical adjustment"),
 223                                                               _("GtkAdjustment with information of the vertical visible position"),
 224                                                               GTK_TYPE_ADJUSTMENT,
 225                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 226
 227         g_object_class_install_property (gobject_class,
 228                                          PROP_SHADOW_TYPE,
 229                                          g_param_spec_enum ("shadow_type",
 230                                                             _("Shadow type"),
 231                                                             _("Kind of shadow that's shown around the view"),
 232                                                             GTK_TYPE_SHADOW_TYPE,
 233                                                             GTK_SHADOW_IN,
 234                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 235
 236         signals[LINK_CLICKED_SIGNAL] =
 237                 g_signal_new ("link_clicked",
 238                               G_TYPE_FROM_CLASS (gobject_class),
 239                               G_SIGNAL_RUN_FIRST,
 240                               G_STRUCT_OFFSET(ModestMsgViewClass, link_clicked),
 241                               NULL, NULL,
 242                               g_cclosure_marshal_VOID__STRING,
 243                               G_TYPE_NONE, 1, G_TYPE_STRING);
 244
 245         signals[ATTACHMENT_CLICKED_SIGNAL] =
 246                 g_signal_new ("attachment_clicked",
 247                               G_TYPE_FROM_CLASS (gobject_class),
 248                               G_SIGNAL_RUN_FIRST,
 249                               G_STRUCT_OFFSET(ModestMsgViewClass, attachment_clicked),
 250                               NULL, NULL,
 251                               g_cclosure_marshal_VOID__OBJECT,
 252                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
 253
 254         signals[LINK_HOVER_SIGNAL] =
 255                 g_signal_new ("link_hover",
 256                               G_TYPE_FROM_CLASS (gobject_class),
 257                               G_SIGNAL_RUN_FIRST,
 258                               G_STRUCT_OFFSET(ModestMsgViewClass, link_hover),
 259                               NULL, NULL,
 260                               g_cclosure_marshal_VOID__STRING,
 261                               G_TYPE_NONE, 1, G_TYPE_STRING);
 262
 263         signals[RECPT_ACTIVATED_SIGNAL] =
 264                 g_signal_new ("recpt_activated",
 265                               G_TYPE_FROM_CLASS (gobject_class),
 266                               G_SIGNAL_RUN_FIRST,
 267                               G_STRUCT_OFFSET(ModestMsgViewClass, recpt_activated),
 268                               NULL, NULL,
 269                               g_cclosure_marshal_VOID__STRING,
 270                               G_TYPE_NONE, 1, G_TYPE_STRING);
 271
 272         signals[LINK_CONTEXTUAL_SIGNAL] =
 273                 g_signal_new ("link_contextual",
 274                               G_TYPE_FROM_CLASS (gobject_class),
 275                               G_SIGNAL_RUN_FIRST,
 276                               G_STRUCT_OFFSET(ModestMsgViewClass, link_contextual),
 277                               NULL, NULL,
 278                               g_cclosure_marshal_VOID__STRING,
 279                               G_TYPE_NONE, 1, G_TYPE_STRING);
 280
 281         widget_class->set_scroll_adjustments_signal =
 282                 g_signal_new ("set_scroll_adjustments",
 283                               G_OBJECT_CLASS_TYPE (gobject_class),
 284                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 285                               G_STRUCT_OFFSET (ModestMsgViewClass, set_scroll_adjustments),
 286                               NULL, NULL,
 287                               modest_marshal_VOID__POINTER_POINTER,
 288                               G_TYPE_NONE, 2,
 289                               GTK_TYPE_ADJUSTMENT,
 290                               GTK_TYPE_ADJUSTMENT);
 291 }
 292
 293 static void
 294 set_property (GObject *object,
 295               guint prop_id,
 296               const GValue *value,
 297               GParamSpec *pspec)
 298 {
 299         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 300
 301         switch (prop_id) {
 302         case PROP_HADJUSTMENT:
 303                 modest_msg_view_set_hadjustment (msg_view, g_value_get_object (value));
 304                 break;
 305         case PROP_VADJUSTMENT:
 306                 modest_msg_view_set_vadjustment (msg_view, g_value_get_object (value));
 307                 break;
 308         case PROP_SHADOW_TYPE:
 309                 modest_msg_view_set_shadow_type (msg_view, g_value_get_enum (value));
 310                 break;
 311         default:
 312                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 313                 break;
 314         }
 315 }
 316
 317 static void
 318 get_property (GObject *object,
 319               guint prop_id,
 320               GValue *value,
 321               GParamSpec *pspec)
 322 {
 323         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 324         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 325
 326         switch (prop_id) {
 327         case PROP_HADJUSTMENT:
 328                 g_value_set_object (value, priv->hadj);
 329                 break;
 330         case PROP_VADJUSTMENT:
 331                 g_value_set_object (value, priv->vadj);
 332                 break;
 333         case PROP_SHADOW_TYPE:
 334                 g_value_set_enum (value, priv->shadow_type);
 335                 break;
 336         default:
 337                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 338                 break;
 339         }
 340 }
 341
 342 static void
 343 disconnect_hadjustment (ModestMsgView *msg_view)
 344 {
 345         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 346
 347         if (priv->hadj) {
 348                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, msg_view);
 349                 g_object_unref (priv->hadj);
 350                 priv->hadj = NULL;
 351         }
 352 }
 353
 354 static void
 355 disconnect_vadjustment (ModestMsgView *msg_view)
 356 {
 357         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 358
 359         if (priv->vadj) {
 360                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, msg_view);
 361                 g_object_unref (priv->vadj);
 362                 priv->vadj = NULL;
 363         }
 364 }
 365
 366 static void
 367 get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation)
 368 {
 369         /* This method gets the allocation of the widget in parent widget. It's the
 370            real position and size of the widget */
 371         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 372
 373         allocation->x = 0;
 374         allocation->y = 0;
 375
 376         if (priv->shadow_type != GTK_SHADOW_NONE) {
 377                 allocation->x = GTK_WIDGET (msg_view)->style->xthickness;
 378                 allocation->y = GTK_WIDGET (msg_view)->style->ythickness;
 379         }
 380
 381         allocation->width = MAX (1, (GTK_WIDGET (msg_view)->allocation.width) - allocation->x * 2);
 382         allocation->height = MAX (1, (GTK_WIDGET (msg_view)->allocation.height) - allocation->y * 2);
 383
 384 }
 385
 386 static void
 387 reclamp_adjustment (GtkAdjustment *adj,
 388                     gboolean *value_changed)
 389 {
 390         gdouble value = adj->value;
 391
 392         /* Correct value to be inside the expected values of a scroll */
 393
 394         value = CLAMP (value, 0, adj->upper - adj->page_size);
 395
 396         if (value != adj->value) {
 397                 adj->value = value;
 398                 if (value_changed)
 399                         *value_changed = TRUE;
 400         } else if (value_changed) {
 401                 *value_changed = FALSE;
 402         }
 403 }
 404
 405 static void
 406 set_hadjustment_values (ModestMsgView *msg_view,
 407                         gboolean *value_changed)
 408 {
 409         GtkAllocation view_allocation;
 410         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 411
 412         get_view_allocation (msg_view, &view_allocation);
 413         hadj->page_size = view_allocation.width;
 414         hadj->step_increment = view_allocation.width * 0.1;
 415         hadj->page_increment = view_allocation.width * 0.9;
 416
 417         hadj->lower = 0;
 418         hadj->upper = view_allocation.width;
 419
 420         reclamp_adjustment (hadj, value_changed);
 421
 422 }
 423
 424 static void
 425 set_vadjustment_values (ModestMsgView *msg_view,
 426                         gboolean *value_changed)
 427 {
 428         GtkAllocation view_allocation;
 429         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 430         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 431         gint full_height = 0;
 432         GtkAdjustment *html_vadj;
 433
 434         get_view_allocation (msg_view, &view_allocation);
 435         vadj->page_size = view_allocation.height;
 436         vadj->step_increment = view_allocation.height * 0.1;
 437         vadj->page_increment = view_allocation.height * 0.9;
 438
 439         vadj->lower = 0;
 440
 441         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 442                 GtkRequisition child_requisition;
 443
 444                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 445                 full_height = child_requisition.height;
 446         } else {
 447                 full_height = 0;
 448         }
 449
 450         /* Get the real height of the embedded html */
 451         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 452                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 453                 full_height += html_vadj->upper;
 454         }
 455
 456         vadj->upper = MAX (view_allocation.height, full_height);
 457
 458         reclamp_adjustment (vadj, value_changed);
 459
 460 }
 461
 462 static void
 463 set_scroll_adjustments (ModestMsgView *msg_view,
 464                         GtkAdjustment *hadj,
 465                         GtkAdjustment *vadj)
 466 {
 467         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 468         modest_msg_view_set_hadjustment (msg_view, hadj);
 469         modest_msg_view_set_vadjustment (msg_view, vadj);
 470
 471         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->gtkhtml), vadj);
 472 }
 473
 474 static void
 475 realize (GtkWidget *widget)
 476 {
 477         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 478         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 479         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 480         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 481         GdkWindowAttr attributes;
 482         gint event_mask;
 483         gint attributes_mask;
 484         GtkAllocation view_allocation;
 485
 486         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 487
 488         /* The structure of the GdkWindow's is:
 489          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 490          *    * view_window: a backing store gdkwindow containing the headers and contents
 491          *      being scrolled. This window should have all the visible and non visible
 492          *      widgets inside.
 493          *    * headers_window: gdk window for headers_box.
 494          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 495          *      gtkhtml showing the contents of the mail).
 496          */
 497
 498         attributes.x = widget->allocation.x;
 499         attributes.y = widget->allocation.y;
 500         attributes.width = widget->allocation.width;
 501         attributes.height = widget->allocation.height;
 502         attributes.window_type = GDK_WINDOW_CHILD;
 503         attributes.wclass = GDK_INPUT_OUTPUT;
 504         attributes.visual = gtk_widget_get_visual (widget);
 505         attributes.colormap = gtk_widget_get_colormap (widget);
 506
 507         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 508         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 509         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 510
 511         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 512                                          &attributes, attributes_mask);
 513         gdk_window_set_user_data (widget->window, msg_view);
 514
 515         get_view_allocation (msg_view, &view_allocation);
 516
 517         attributes.x = view_allocation.x;
 518         attributes.y = view_allocation.y;
 519         attributes.width = view_allocation.width;
 520         attributes.height = view_allocation.height;
 521         attributes.event_mask = 0;
 522         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 523         gdk_window_set_user_data (priv->view_window, msg_view);
 524         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 525
 526         attributes.x = -hadj->value;
 527         attributes.y = -vadj->value;
 528         attributes.width = hadj->upper;
 529         if (priv->headers_box)
 530                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 531         else
 532                 attributes.height = 1;
 533         attributes.event_mask = event_mask;
 534
 535         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 536         gdk_window_set_user_data (priv->headers_window, msg_view);
 537
 538         if (priv->headers_box)
 539                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 540
 541         attributes.x = -hadj->value;
 542         if (priv->headers_box)
 543                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 544         else
 545                 attributes.y = -vadj->value;
 546         attributes.width = hadj->upper;
 547         if (priv->headers_box)
 548                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 549         else
 550                 attributes.height = vadj->upper;
 551         attributes.event_mask = event_mask;
 552
 553         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 554         gdk_window_set_user_data (priv->html_window, msg_view);
 555
 556         if (priv->html_scroll)
 557                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 558
 559         widget->style = gtk_style_attach (widget->style, widget->window);
 560         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 561         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 562         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 563
 564         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 565                            GTK_SHADOW_NONE,
 566                            NULL, widget, "msgviewheaders",
 567                            0,0,-1,-1);
 568         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 569                            GTK_SHADOW_NONE,
 570                            NULL, widget, "msgviewcontents",
 571                            0,0,-1,-1);
 572
 573         gdk_window_show (priv->view_window);
 574         gdk_window_show (priv->headers_window);
 575         gdk_window_show (priv->html_window);
 576
 577 }
 578
 579 static void
 580 unrealize (GtkWidget *widget)
 581 {
 582         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 583         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 584
 585         gdk_window_set_user_data (priv->view_window, NULL);
 586         gdk_window_destroy (priv->view_window);
 587         priv->view_window = NULL;
 588
 589         gdk_window_set_user_data (priv->headers_window, NULL);
 590         gdk_window_destroy (priv->headers_window);
 591         priv->headers_window = NULL;
 592
 593         gdk_window_set_user_data (priv->html_window, NULL);
 594         gdk_window_destroy (priv->html_window);
 595         priv->html_window = NULL;
 596
 597         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 598                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 599
 600 }
 601
 602 static gint
 603 expose (GtkWidget *widget,
 604         GdkEventExpose *event)
 605 {
 606         ModestMsgView *msg_view;
 607         ModestMsgViewPrivate *priv;
 608
 609         if (GTK_WIDGET_DRAWABLE (widget)) {
 610                 msg_view = MODEST_MSG_VIEW (widget);
 611                 priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 612                 if (event->window == widget->window) {
 613                         gtk_paint_shadow (widget->style, widget->window,
 614                                           GTK_STATE_NORMAL, priv->shadow_type,
 615                                           &event->area, widget, "msgview",
 616                                           0,0,-1,-1);
 617                 } else if (event->window == priv->headers_window) {
 618                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 619                                            GTK_SHADOW_NONE,
 620                                            &event->area, widget, "msgviewheaders",
 621                                            0,0,-1,-1);
 622                 } else if (event->window == priv->html_window) {
 623                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 624                                            GTK_SHADOW_NONE,
 625                                            &event->area, widget, "msgviewcontents",
 626                                            0,0,-1,-1);
 627                 }
 628                 if (priv->headers_box)
 629                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->headers_box, event);
 630                 if (priv->html_scroll)
 631                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->html_scroll, event);
 632                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 633         }
 634
 635         return FALSE;
 636 }
 637
 638 static void
 639 forall (GtkContainer *container,
 640         gboolean include_internals,
 641         GtkCallback callback,
 642         gpointer userdata)
 643 {
 644         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 645         g_return_if_fail (callback != NULL);
 646
 647         if (priv->headers_box)
 648                 (*callback) (priv->headers_box, userdata);
 649         if (priv->html_scroll)
 650                 (*callback) (priv->html_scroll, userdata);
 651 }
 652
 653 static void
 654 container_remove (GtkContainer *container,
 655                   GtkWidget *widget)
 656 {
 657         gboolean was_visible = FALSE;
 658         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 659         was_visible = GTK_WIDGET_VISIBLE (widget);
 660         if (widget == priv->headers_box) {
 661                 gtk_widget_unparent (priv->headers_box);
 662                 priv->headers_box = NULL;
 663         } else if (widget == priv->html_scroll) {
 664                 gtk_widget_unparent (priv->html_scroll);
 665                 priv->html_scroll = NULL;
 666         } else {
 667                 return;
 668         }
 669         if (was_visible)
 670                 gtk_widget_queue_resize (GTK_WIDGET(container));
 671
 672 }
 673
 674 static void
 675 size_request (GtkWidget *widget,
 676               GtkRequisition *req)
 677 {
 678         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (widget);
 679         GtkRequisition child_req;
 680
 681         req->width = 0;
 682         req->height = 0;
 683
 684         gtk_widget_size_request (priv->headers_box, &child_req);
 685         req->width = child_req.width;
 686         req->height += child_req.height;
 687         gtk_widget_size_request (priv->html_scroll, &child_req);
 688         req->width = MAX (child_req.width, req->width);
 689         req->height += child_req.height;
 690
 691 }
 692
 693 static void
 694 size_allocate (GtkWidget *widget,
 695                GtkAllocation *allocation)
 696 {
 697         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 698         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 699         gboolean hadj_value_changed, vadj_value_changed;
 700         GtkAllocation headers_allocation, html_allocation, view_allocation;
 701         GtkAdjustment *html_vadj;
 702
 703         if (GTK_WIDGET_MAPPED (widget) &&
 704             priv->shadow_type != GTK_SHADOW_NONE &&
 705             (allocation->width != widget->allocation.width ||
 706              allocation->height != widget->allocation.height))
 707                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 708
 709         widget->allocation = *allocation;
 710         set_hadjustment_values (msg_view, &hadj_value_changed);
 711         set_vadjustment_values (msg_view, &vadj_value_changed);
 712
 713         get_view_allocation (msg_view, &view_allocation);
 714
 715         headers_allocation.x = 0;
 716         headers_allocation.y = 0;
 717         headers_allocation.width = view_allocation.width;
 718         if (priv->headers_box)
 719                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 720         else
 721                 headers_allocation.height = 0;
 722
 723         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 724
 725         html_allocation.x = 0;
 726         html_allocation.y = headers_allocation.height;
 727         html_allocation.width = view_allocation.width;
 728         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 729
 730         if (GTK_WIDGET_REALIZED (widget)) {
 731                 gdk_window_move_resize (widget->window,
 732                                         allocation->x,
 733                                         allocation->y,
 734                                         allocation->width,
 735                                         allocation->height);
 736
 737                 gdk_window_move_resize (priv->view_window,
 738                                         view_allocation.x,
 739                                         view_allocation.y,
 740                                         view_allocation.width,
 741                                         view_allocation.height);
 742                 gdk_window_move_resize (priv->headers_window,
 743                                         0,
 744                                         (gint) (- priv->vadj->value),
 745                                         allocation->width,
 746                                         headers_allocation.height);
 747                 gdk_window_move_resize (priv->html_window,
 748                                         (gint) (- priv->hadj->value),
 749                                         (gint) (html_allocation.y - priv->vadj->value),
 750                                         (gint) priv->hadj->upper,
 751                                         html_allocation.height);
 752         }
 753
 754         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 755                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 756         }
 757         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 758                 html_allocation.x = 0;
 759                 html_allocation.y = 0;
 760                 html_allocation.width = (gint) priv->hadj->upper;
 761                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 762                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 763         }
 764         gtk_adjustment_changed (priv->hadj);
 765         gtk_adjustment_changed (priv->vadj);
 766
 767         if (hadj_value_changed)
 768                 gtk_adjustment_value_changed (priv->hadj);
 769         if (vadj_value_changed)
 770                 gtk_adjustment_value_changed (priv->vadj);
 771
 772 }
 773
 774 static void
 775 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 776 {
 777         ModestMsgView *msg_view = NULL;
 778         ModestMsgViewPrivate *priv = NULL;
 779
 780         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 781         g_return_if_fail (MODEST_IS_MSG_VIEW (data));
 782
 783         msg_view = MODEST_MSG_VIEW (data);
 784         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 785
 786         if (GTK_WIDGET_REALIZED (msg_view)) {
 787                 GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 788                 GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 789                 gint headers_offset = 0;
 790
 791                 gtk_widget_queue_resize (priv->html_scroll);
 792
 793                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 794                         gint old_x, old_y;
 795                         gint new_x, new_y;
 796                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 797                         new_x = 0;
 798                         new_y = -vadj->value;
 799
 800                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 801
 802                         if (new_x != old_x || new_y != old_y) {
 803                                 gdk_window_move (priv->headers_window, new_x, new_y);
 804                                 gdk_window_process_updates (priv->headers_window, TRUE);
 805                         }
 806                 }
 807
 808                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 809                         gint old_x, old_y;
 810                         gint new_x, new_y;
 811                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 812                         new_x = -hadj->value;
 813                         new_y = headers_offset - vadj->value;
 814
 815                         if (new_x != old_x || new_y != old_y) {
 816                                 gdk_window_move (priv->html_window, new_x, new_y);
 817                                 gdk_window_process_updates (priv->html_window, TRUE);
 818                         }
 819                 }
 820
 821         }
 822 }
 823
 824 static void
 825 html_adjustment_changed (GtkAdjustment *adj,
 826                          gpointer userdata)
 827 {
 828         ModestMsgView *msg_view = MODEST_MSG_VIEW (userdata);
 829         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 830         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 831         gboolean vadj_changed;
 832         gint new_height;
 833
 834         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
 835
 836         priv->html_scroll->requisition.height = html_vadj->upper;
 837         if (html_vadj->upper == priv->html_scroll->allocation.height)
 838                 return;
 839         priv->html_scroll->allocation.height = html_vadj->upper;
 840
 841         set_vadjustment_values (msg_view, &vadj_changed);
 842
 843         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
 844
 845         gtk_adjustment_changed (priv->vadj);
 846         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
 847                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
 848                 gdk_window_process_updates (priv->view_window, TRUE);
 849                 gtk_container_resize_children (GTK_CONTAINER (msg_view));
 850         }
 851
 852 }
 853
 854 static void
 855 modest_msg_view_init (ModestMsgView *obj)
 856 {
 857         ModestMsgViewPrivate *priv;
 858         GtkAdjustment *html_vadj;
 859
 860         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
 861         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
 862         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
 863         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
 864
 865         priv = MODEST_MSG_VIEW_GET_PRIVATE(obj);
 866
 867         priv->current_zoom = 1.0;
 868         priv->priority_flags = 0;
 869
 870         priv->hadj = NULL;
 871         priv->vadj = NULL;
 872         priv->shadow_type = GTK_SHADOW_IN;
 873         priv->view_window = NULL;
 874         priv->headers_window = NULL;
 875         priv->html_window = NULL;
 876
 877         gtk_widget_push_composite_child ();
 878         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
 879         gtk_widget_set_composite_name (priv->html_scroll, "contents");
 880         gtk_widget_pop_composite_child ();
 881         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 882
 883         priv->msg                     = NULL;
 884
 885         priv->gtkhtml                 = gtk_html_new();
 886         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 887         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 888         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 889         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 890         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 891
 892         priv->mail_header_view        = GTK_WIDGET(modest_mail_header_view_new (TRUE));
 893         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
 894
 895         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
 896
 897         priv->sig1 = g_signal_connect (G_OBJECT(priv->gtkhtml), "link_clicked",
 898                                        G_CALLBACK(on_link_clicked), obj);
 899         priv->sig2 = g_signal_connect (G_OBJECT(priv->gtkhtml), "url_requested",
 900                                        G_CALLBACK(on_url_requested), obj);
 901         priv->sig3 = g_signal_connect (G_OBJECT(priv->gtkhtml), "on_url",
 902                                        G_CALLBACK(on_link_hover), obj);
 903
 904         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
 905                           G_CALLBACK (on_recpt_activated), obj);
 906
 907         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
 908                           G_CALLBACK (on_attachment_activated), obj);
 909
 910         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 911
 912         g_signal_connect (G_OBJECT (html_vadj), "changed",
 913                           G_CALLBACK (html_adjustment_changed), obj);
 914
 915 }
 916
 917
 918 static void
 919 modest_msg_view_finalize (GObject *obj)
 920 {
 921         ModestMsgViewPrivate *priv;
 922         priv = MODEST_MSG_VIEW_GET_PRIVATE (obj);
 923
 924         if (priv->msg) {
 925                 g_object_unref (G_OBJECT(priv->msg));
 926                 priv->msg = NULL;
 927         }
 928
 929         /* we cannot disconnect sigs, because priv->gtkhtml is
 930          * already dead */
 931
 932         disconnect_vadjustment (MODEST_MSG_VIEW(obj));
 933         disconnect_hadjustment (MODEST_MSG_VIEW(obj));
 934
 935         priv->gtkhtml = NULL;
 936         priv->attachments_view = NULL;
 937
 938         G_OBJECT_CLASS(parent_class)->finalize (obj);
 939 }
 940
 941 static void
 942 modest_msg_view_destroy (GtkObject *obj)
 943 {
 944         disconnect_vadjustment (MODEST_MSG_VIEW(obj));
 945         disconnect_hadjustment (MODEST_MSG_VIEW(obj));
 946
 947         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
 948 }
 949
 950 GtkAdjustment *
 951 modest_msg_view_get_vadjustment (ModestMsgView *msg_view)
 952 {
 953         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 954
 955         if (!priv->vadj)
 956                 modest_msg_view_set_vadjustment (msg_view, NULL);
 957
 958         return priv->vadj;
 959
 960 }
 961
 962 GtkAdjustment *
 963 modest_msg_view_get_hadjustment (ModestMsgView *msg_view)
 964 {
 965         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 966
 967         if (!priv->hadj)
 968                 modest_msg_view_set_hadjustment (msg_view, NULL);
 969
 970         return priv->hadj;
 971
 972 }
 973
 974 void
 975 modest_msg_view_set_hadjustment (ModestMsgView *msg_view, GtkAdjustment *hadj)
 976 {
 977         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 978         gboolean value_changed;
 979
 980         if (hadj && hadj == priv->hadj)
 981                 return;
 982
 983         if (!hadj)
 984                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
 985         disconnect_hadjustment (msg_view);
 986         g_object_ref (G_OBJECT (hadj));
 987         gtk_object_sink (GTK_OBJECT (hadj));
 988         priv->hadj = hadj;
 989         set_hadjustment_values (msg_view, &value_changed);
 990
 991         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
 992                           msg_view);
 993
 994         gtk_adjustment_changed (hadj);
 995         if (value_changed)
 996                 gtk_adjustment_value_changed (hadj);
 997         else
 998                 adjustment_value_changed (hadj, msg_view);
 999
1000         g_object_notify (G_OBJECT (msg_view), "hadjustment");
1001 }
1002
1003 void
1004 modest_msg_view_set_vadjustment (ModestMsgView *msg_view, GtkAdjustment *vadj)
1005 {
1006         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1007         gboolean value_changed;
1008
1009         if (vadj && vadj == priv->vadj)
1010                 return;
1011
1012         if (!vadj)
1013                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1014         disconnect_vadjustment (msg_view);
1015         g_object_ref (G_OBJECT (vadj));
1016         gtk_object_sink (GTK_OBJECT (vadj));
1017         priv->vadj = vadj;
1018         set_vadjustment_values (msg_view, &value_changed);
1019
1020         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1021                           msg_view);
1022
1023         gtk_adjustment_changed (vadj);
1024         if (value_changed)
1025                 gtk_adjustment_value_changed (vadj);
1026         else
1027                 adjustment_value_changed (vadj, msg_view);
1028
1029         g_object_notify (G_OBJECT (msg_view), "vadjustment");
1030 }
1031
1032 /**
1033  * modest_msg_view_set_shadow_type:
1034  * @msg_view: a #ModestMsgView.
1035  * @shadow_type: new shadow type.
1036  *
1037  * Sets a shadow type of the message view.
1038  **/
1039 void
1040 modest_msg_view_set_shadow_type (ModestMsgView *msg_view,
1041                                  GtkShadowType shadow_type)
1042 {
1043         ModestMsgViewPrivate *priv;
1044         g_return_if_fail (MODEST_IS_MSG_VIEW (msg_view));
1045
1046         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1047
1048         if (priv->shadow_type != shadow_type) {
1049                 priv->shadow_type = shadow_type;
1050
1051                 if (GTK_WIDGET_VISIBLE (msg_view)) {
1052                         gtk_widget_size_allocate (GTK_WIDGET (msg_view), &(GTK_WIDGET (msg_view)->allocation));
1053                         gtk_widget_queue_draw (GTK_WIDGET (msg_view));
1054                 }
1055                 g_object_notify (G_OBJECT (msg_view), "shadow-type");
1056         }
1057 }
1058
1059 /**
1060  * modest_msg_view_get_shadow_type:
1061  * @msg_view: a #ModestMsgView
1062  *
1063  * Gets the current shadow type of the #ModestMsgView.
1064  *
1065  * Return value: the shadow type
1066  **/
1067 GtkShadowType
1068 modest_msg_view_get_shadow_type (ModestMsgView *msg_view)
1069 {
1070         ModestMsgViewPrivate *priv;
1071         g_return_val_if_fail (MODEST_IS_MSG_VIEW (msg_view), GTK_SHADOW_NONE);
1072         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1073
1074         return priv->shadow_type;
1075 }
1076
1077 GtkWidget*
1078 modest_msg_view_new (TnyMsg *msg)
1079 {
1080         GObject *obj;
1081         ModestMsgView* self;
1082         ModestMsgViewPrivate *priv;
1083         GtkWidget *separator;
1084
1085         obj  = G_OBJECT(g_object_new(MODEST_TYPE_MSG_VIEW, NULL));
1086         self = MODEST_MSG_VIEW(obj);
1087         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1088
1089         gtk_widget_push_composite_child ();
1090         priv->headers_box = gtk_vbox_new (0, FALSE);
1091         gtk_widget_set_composite_name (priv->headers_box, "headers");
1092         gtk_widget_pop_composite_child ();
1093
1094         if (priv->mail_header_view)
1095                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1096
1097         if (priv->attachments_view) {
1098                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1099
1100                 priv->attachments_box = (GtkWidget *)
1101                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1102                                                                    att_label,
1103                                                                    priv->attachments_view,
1104                                                                    FALSE, FALSE);
1105                 gtk_widget_hide_all (priv->attachments_box);
1106                 g_free (att_label);
1107 /*              gtk_widget_set_no_show_all (priv->attachments_box, TRUE); */
1108         }
1109
1110         separator = gtk_hseparator_new ();
1111         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1112
1113         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (self));
1114
1115         if (priv->gtkhtml) {
1116                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->gtkhtml);
1117                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(self));
1118 #ifdef MAEMO_CHANGES
1119                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->gtkhtml), NULL, NULL, 0);
1120                 g_signal_connect (G_OBJECT (priv->gtkhtml), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1121 #endif
1122         }
1123
1124         modest_msg_view_set_message (self, msg);
1125
1126         return GTK_WIDGET(self);
1127 }
1128
1129 #ifdef MAEMO_CHANGES
1130 static void
1131 on_tap_and_hold (GtkWidget *widget,
1132                  gpointer data)
1133 {
1134         ModestMsgView *msg_view = (ModestMsgView *) data;
1135         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1136
1137         g_signal_emit (G_OBJECT (msg_view), signals[LINK_CONTEXTUAL_SIGNAL],
1138                        0, priv->last_url);
1139 }
1140 #endif
1141
1142 static void
1143 on_recpt_activated (ModestMailHeaderView *header_view,
1144                     const gchar *address,
1145                     ModestMsgView * view)
1146 {
1147         g_signal_emit (G_OBJECT (view), signals[RECPT_ACTIVATED_SIGNAL], 0, address);
1148 }
1149
1150 static void
1151 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer msg_view)
1152 {
1153
1154         g_signal_emit (G_OBJECT(msg_view), signals[ATTACHMENT_CLICKED_SIGNAL],
1155                        0, mime_part);
1156 }
1157
1158 static gboolean
1159 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1160 {
1161         g_return_val_if_fail (msg_view, FALSE);
1162
1163         g_signal_emit (G_OBJECT(msg_view), signals[LINK_CLICKED_SIGNAL],
1164                        0, uri);
1165
1166         return FALSE;
1167 }
1168
1169
1170 static gboolean
1171 on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1172 {
1173         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1174
1175         g_free (priv->last_url);
1176         priv->last_url = g_strdup (uri);
1177
1178         g_signal_emit (G_OBJECT(msg_view), signals[LINK_HOVER_SIGNAL],
1179                        0, uri);
1180
1181         return FALSE;
1182 }
1183
1184
1185
1186 static TnyMimePart *
1187 find_cid_image (TnyMsg *msg, const gchar *cid)
1188 {
1189         TnyMimePart *part = NULL;
1190         TnyList *parts;
1191         TnyIterator *iter;
1192
1193         g_return_val_if_fail (msg, NULL);
1194         g_return_val_if_fail (cid, NULL);
1195
1196         parts  = TNY_LIST (tny_simple_list_new());
1197
1198         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1199         iter   = tny_list_create_iterator (parts);
1200
1201         while (!tny_iterator_is_done(iter)) {
1202                 const gchar *part_cid;
1203                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1204                 part_cid = tny_mime_part_get_content_id (part);
1205
1206                 if (part_cid && strcmp (cid, part_cid) == 0)
1207                         break;
1208
1209                 if (part)
1210                         g_object_unref (G_OBJECT(part));
1211
1212                 part = NULL;
1213                 tny_iterator_next (iter);
1214         }
1215
1216         g_object_unref (G_OBJECT(iter));
1217         g_object_unref (G_OBJECT(parts));
1218
1219         return part;
1220 }
1221
1222
1223 static gboolean
1224 on_url_requested (GtkWidget *widget, const gchar *uri,
1225                   GtkHTMLStream *stream, ModestMsgView *msg_view)
1226 {
1227         ModestMsgViewPrivate *priv;
1228         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1229
1230         if (g_str_has_prefix (uri, "cid:")) {
1231                 /* +4 ==> skip "cid:" */
1232                 TnyMimePart *part = find_cid_image (priv->msg, uri + 4);
1233                 if (!part) {
1234                         g_printerr ("modest: '%s' not found\n", uri + 4);
1235                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
1236                 } else {
1237                         TnyStream *tny_stream =
1238                                 TNY_STREAM(modest_tny_stream_gtkhtml_new(stream));
1239                         tny_mime_part_decode_to_stream ((TnyMimePart*)part,
1240                                                                   tny_stream);
1241                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
1242
1243                         g_object_unref (G_OBJECT(tny_stream));
1244                         g_object_unref (G_OBJECT(part));
1245                 }
1246         }
1247
1248         return TRUE;
1249 }
1250
1251 static gboolean
1252 set_html_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1253 {
1254         GtkHTMLStream *gtkhtml_stream;
1255         TnyStream *tny_stream;
1256         ModestMsgViewPrivate *priv;
1257
1258         g_return_val_if_fail (self, FALSE);
1259         g_return_val_if_fail (tny_body, FALSE);
1260
1261         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1262
1263         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1264
1265         tny_stream     = TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1266         tny_stream_reset (tny_stream);
1267
1268         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, tny_stream);
1269         g_object_unref (G_OBJECT(tny_stream));
1270
1271         gtk_html_stream_destroy (gtkhtml_stream);
1272
1273         return TRUE;
1274 }
1275
1276
1277 /* FIXME: this is a hack --> we use the tny_text_buffer_stream to
1278  * get the message text, then write to gtkhtml 'by hand' */
1279 static gboolean
1280 set_text_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1281 {
1282         GtkTextBuffer *buf;
1283         GtkTextIter begin, end;
1284         TnyStream* txt_stream, *tny_stream;
1285         GtkHTMLStream *gtkhtml_stream;
1286         gchar *txt;
1287         ModestMsgViewPrivate *priv;
1288
1289         g_return_val_if_fail (self, FALSE);
1290         g_return_val_if_fail (tny_body, FALSE);
1291
1292         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1293
1294         buf            = gtk_text_buffer_new (NULL);
1295         txt_stream     = TNY_STREAM(tny_gtk_text_buffer_stream_new (buf));
1296
1297         tny_stream_reset (txt_stream);
1298
1299         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1300         tny_stream =  TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1301
1302         // FIXME: tinymail
1303         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, txt_stream);
1304         tny_stream_reset (txt_stream);
1305
1306         gtk_text_buffer_get_bounds (buf, &begin, &end);
1307         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
1308         if (txt) {
1309                 gchar *html = modest_text_utils_convert_to_html (txt);
1310                 tny_stream_write (tny_stream, html, strlen(html));
1311                 tny_stream_reset (tny_stream);
1312                 g_free (txt);
1313                 g_free (html);
1314         }
1315
1316         g_object_unref (G_OBJECT(tny_stream));
1317         g_object_unref (G_OBJECT(txt_stream));
1318         g_object_unref (G_OBJECT(buf));
1319
1320         gtk_html_stream_destroy (gtkhtml_stream);
1321
1322         return TRUE;
1323 }
1324
1325
1326 static gboolean
1327 set_empty_message (ModestMsgView *self)
1328 {
1329         ModestMsgViewPrivate *priv;
1330
1331         g_return_val_if_fail (self, FALSE);
1332         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1333
1334         gtk_html_load_from_string (GTK_HTML(priv->gtkhtml),
1335                                    "", 1);
1336
1337
1338         return TRUE;
1339 }
1340
1341
1342 void
1343 modest_msg_view_set_message (ModestMsgView *self, TnyMsg *msg)
1344 {
1345         TnyMimePart *body;
1346         ModestMsgViewPrivate *priv;
1347         TnyHeader *header;
1348         GtkAdjustment *html_vadj;
1349
1350         g_return_if_fail (self);
1351
1352         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1353         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1354
1355         if (msg != priv->msg) {
1356                 if (priv->msg)
1357                         g_object_unref (G_OBJECT(priv->msg));
1358                 if (msg)
1359                         g_object_ref   (G_OBJECT(msg));
1360                 priv->msg = msg;
1361         }
1362
1363         if (!msg) {
1364                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1365                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1366                 gtk_widget_hide_all (priv->mail_header_view);
1367                 gtk_widget_hide_all (priv->attachments_box);
1368                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1369                 set_empty_message (self);
1370                 gtk_widget_queue_resize (GTK_WIDGET(self));
1371                 gtk_widget_queue_draw (GTK_WIDGET(self));
1372                 return;
1373         }
1374
1375         header = tny_msg_get_header (msg);
1376         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1377         g_object_unref (header);
1378
1379         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1380                                              msg);
1381
1382         body = modest_tny_msg_find_body_part (msg, TRUE);
1383         if (body) {
1384                 if (tny_mime_part_content_type_is (body, "text/html"))
1385                         set_html_message (self, body, msg);
1386                 else
1387                         set_text_message (self, body, msg);
1388
1389                 if(modest_attachments_view_has_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view))) {
1390                         gtk_widget_show_all (priv->attachments_box);
1391                 } else {
1392                         gtk_widget_hide_all (priv->attachments_box);
1393                 }
1394
1395 /*              g_print ("---\nfilename %s\ncontent_location %s\ncontent_id%s\ncontent_type%s\n", */
1396 /*                       tny_mime_part_get_filename (body), */
1397 /*                       tny_mime_part_get_content_location (body), */
1398 /*                       tny_mime_part_get_content_id (body), */
1399 /*                       tny_mime_part_get_content_type (body)); */
1400
1401         } else
1402                 set_empty_message (self);
1403
1404         gtk_widget_show (priv->gtkhtml);
1405         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1406         gtk_widget_show_all (priv->mail_header_view);
1407         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1408 /*      gtk_widget_show_all (priv->attachments_box); */
1409 /*      gtk_widget_show_all (priv->attachments_box); */
1410         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1411         gtk_widget_queue_resize (GTK_WIDGET(self));
1412         gtk_widget_queue_draw (GTK_WIDGET(self));
1413
1414         if (priv->hadj != NULL)
1415                 priv->hadj->value = 0.0;
1416         if (priv->vadj != NULL)
1417                 priv->vadj->value = 0.0;
1418
1419         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1420
1421         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1422
1423         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1424          * makes the html view get the proper and expected size and prevent being able to scroll
1425          * the buffer when it shouldn't be scrollable */
1426         g_object_ref (self);
1427         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1428 }
1429
1430
1431 TnyMsg*
1432 modest_msg_view_get_message (ModestMsgView *self)
1433 {
1434         TnyMsg *msg;
1435
1436         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), NULL);
1437
1438         msg = MODEST_MSG_VIEW_GET_PRIVATE(self)->msg;
1439
1440         if (msg)
1441                 g_object_ref (msg);
1442
1443         return msg;
1444 }
1445
1446 static gboolean
1447 has_contents_receiver (gpointer engine, const gchar *data,
1448                        size_t len, gboolean *has_contents)
1449 {
1450         if (len > 1 || ((len == 1)&&(data[0]!='\n'))) {
1451                 *has_contents = TRUE;
1452                 return FALSE;
1453         }
1454         return TRUE;
1455 }
1456
1457 gboolean
1458 modest_msg_view_get_message_is_empty (ModestMsgView *self)
1459 {
1460         /* TODO: Find some gtkhtml API to check whether there is any (visible, non markup)
1461          * text in the message:
1462          */
1463         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1464         gboolean has_contents = FALSE;
1465
1466         gtk_html_export (GTK_HTML (priv->gtkhtml), "text/plain",
1467                          (GtkHTMLSaveReceiverFn) has_contents_receiver, &has_contents);
1468
1469         return !has_contents;
1470 }
1471
1472
1473 gboolean
1474 modest_msg_view_search (ModestMsgView *self, const gchar *search)
1475 {
1476         ModestMsgViewPrivate *priv;
1477         gboolean result;
1478         GtkAdjustment *vadj, *tmp_vadj;
1479         gdouble y_offset;
1480
1481         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), FALSE);
1482
1483         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1484         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->gtkhtml));
1485         g_object_ref (vadj);
1486         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1487         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->gtkhtml), tmp_vadj);
1488         result = gtk_html_engine_search (GTK_HTML (priv->gtkhtml),
1489                                          search,
1490                                          FALSE,   /* case sensitive */
1491                                          TRUE,    /* forward */
1492                                          FALSE);  /* regexp */
1493
1494         if (result) {
1495                 gint x, y, w, h;
1496                 gdouble offset_top, offset_bottom;
1497                 GtkAdjustment *adj;
1498                 gtk_html_get_selection_area (GTK_HTML (priv->gtkhtml), &x, &y, &w, &h);
1499                 offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1500                 offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1501                 adj = GTK_ADJUSTMENT (priv->vadj);
1502                 if (offset_top < adj->value)
1503                         gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1504                 else if (offset_bottom > adj->value + adj->page_increment)
1505                         gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1506         }
1507
1508         y_offset = tmp_vadj->value;
1509         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->gtkhtml), vadj);
1510         g_object_unref (vadj);
1511
1512         return result;
1513 }
1514
1515 gboolean
1516 modest_msg_view_search_next (ModestMsgView *self)
1517 {
1518         ModestMsgViewPrivate *priv;
1519         gboolean result;
1520
1521         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), FALSE);
1522
1523         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1524         result = gtk_html_engine_search_next (GTK_HTML (priv->gtkhtml));
1525
1526         if (result) {
1527                 gint x, y, w, h;
1528                 gdouble offset_top, offset_bottom;
1529                 GtkAdjustment *adj;
1530                 gtk_html_get_selection_area (GTK_HTML (priv->gtkhtml), &x, &y, &w, &h);
1531                 g_message ("SELECTION AREA x%d y%d w%d h%d", x, y, w, h);
1532                 offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1533                 offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1534                 adj = GTK_ADJUSTMENT (priv->vadj);
1535                 if (offset_top < adj->value)
1536                         gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1537                 else if (offset_bottom > adj->value + adj->page_increment)
1538                         gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1539         }
1540         return result;
1541 }
1542
1543 void
1544 modest_msg_view_set_zoom (ModestMsgView *self, gdouble zoom)
1545 {
1546         ModestMsgViewPrivate *priv;
1547
1548         g_return_if_fail (MODEST_IS_MSG_VIEW (self));
1549
1550         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1551         priv->current_zoom = zoom;
1552         gtk_html_set_magnification (GTK_HTML(priv->gtkhtml), zoom);
1553
1554         gtk_widget_queue_resize (priv->gtkhtml);
1555 }
1556
1557 gdouble
1558 modest_msg_view_get_zoom (ModestMsgView *self)
1559 {
1560         ModestMsgViewPrivate *priv;
1561
1562         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), 1.0);
1563
1564         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1565
1566         return priv->current_zoom;
1567 }
1568
1569 TnyHeaderFlags
1570 modest_msg_view_get_priority (ModestMsgView *self)
1571 {
1572         ModestMsgViewPrivate *priv;
1573
1574         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), 0);
1575
1576         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1577
1578         return priv->priority_flags;
1579 }
1580
1581 void
1582 modest_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
1583 {
1584         ModestMsgViewPrivate *priv;
1585
1586         g_return_if_fail (MODEST_IS_MSG_VIEW (self));
1587
1588         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1589
1590         priv->priority_flags = flags & (TNY_HEADER_FLAG_HIGH_PRIORITY);
1591
1592         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1593 }
1594
1595 GList *
1596 modest_msg_view_get_selected_attachments (ModestMsgView *self)
1597 {
1598         ModestMsgViewPrivate *priv;
1599
1600         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), NULL);
1601         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1602
1603         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1604
1605 }
1606
1607 GList *
1608 modest_msg_view_get_attachments (ModestMsgView *self)
1609 {
1610         ModestMsgViewPrivate *priv;
1611
1612         g_return_val_if_fail (MODEST_IS_MSG_VIEW (self), NULL);
1613         priv = MODEST_MSG_VIEW_GET_PRIVATE (self);
1614
1615         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1616
1617 }
1618
1619 void
1620 modest_msg_view_grab_focus (ModestMsgView *view)
1621 {
1622         ModestMsgViewPrivate *priv = NULL;
1623
1624         g_return_if_fail (MODEST_IS_MSG_VIEW (view));
1625         priv = MODEST_MSG_VIEW_GET_PRIVATE (view);
1626
1627         gtk_widget_grab_focus (priv->gtkhtml);
1628 }
1629
1630 void
1631 modest_msg_view_remove_attachment (ModestMsgView *view, TnyMimePart *attachment)
1632 {
1633         TnyMsg *msg;
1634         ModestMsgViewPrivate *priv;
1635
1636         g_return_if_fail (MODEST_IS_MSG_VIEW (view));
1637         g_return_if_fail (TNY_IS_MIME_PART (attachment));
1638         priv = MODEST_MSG_VIEW_GET_PRIVATE (view);
1639
1640         msg = modest_msg_view_get_message (view);
1641         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1642                                                    attachment);
1643
1644 }
1645
1646 gboolean
1647 idle_readjust_scroll (ModestMsgView *view)
1648 {
1649         if (GTK_WIDGET_DRAWABLE (view)) {
1650                 ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (view);
1651                 GtkAdjustment *html_vadj;
1652                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1653                 html_vadj->page_size = html_vadj->upper;
1654                 gtk_adjustment_changed (html_vadj);
1655                 gtk_widget_queue_resize (GTK_WIDGET (view));
1656                 gtk_widget_queue_draw (GTK_WIDGET (view));
1657
1658                 /* Just another hack for making readjust really work. This forces an update
1659                  * of the scroll, and then, make the scroll really update properly the
1660                  * the size and not corrupt scrollable area */
1661                 gtk_adjustment_set_value (priv->vadj, 1.0);
1662                 gtk_adjustment_set_value (priv->vadj, 0.0);
1663         }
1664         g_object_unref (G_OBJECT (view));
1665         return FALSE;
1666 }