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, gint index, gpointer);
  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
 117         /* internal adjustments for set_scroll_adjustments */
 118         GtkAdjustment *hadj;
 119         GtkAdjustment *vadj;
 120         GtkShadowType shadow_type;
 121
 122         /* gdk windows for drawing */
 123         GdkWindow *view_window;
 124         GdkWindow *headers_window;
 125         GdkWindow *html_window;
 126
 127         gulong  sig1, sig2, sig3;
 128 };
 129 #define MODEST_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 130                                                  MODEST_TYPE_MSG_VIEW, \
 131                                                  ModestMsgViewPrivate))
 132 /* globals */
 133 static GtkContainerClass *parent_class = NULL;
 134
 135 /* uncomment the following if you have defined any signals */
 136 static guint signals[LAST_SIGNAL] = {0};
 137
 138 GType
 139 modest_msg_view_get_type (void)
 140 {
 141         static GType my_type = 0;
 142         if (!my_type) {
 143                 static const GTypeInfo my_info = {
 144                         sizeof(ModestMsgViewClass),
 145                         NULL,           /* base init */
 146                         NULL,           /* base finalize */
 147                         (GClassInitFunc) modest_msg_view_class_init,
 148                         NULL,           /* class finalize */
 149                         NULL,           /* class data */
 150                         sizeof(ModestMsgView),
 151                         1,              /* n_preallocs */
 152                         (GInstanceInitFunc) modest_msg_view_init,
 153                         NULL
 154                 };
 155                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 156                                                   "ModestMsgView",
 157                                                   &my_info, 0);
 158         }
 159         return my_type;
 160 }
 161
 162 static void
 163 modest_msg_view_class_init (ModestMsgViewClass *klass)
 164 {
 165         GObjectClass *gobject_class;
 166         GtkWidgetClass *widget_class;
 167         GtkObjectClass *gtkobject_class;
 168         GtkContainerClass *container_class;
 169         gobject_class = (GObjectClass*) klass;
 170         widget_class = (GtkWidgetClass *) klass;
 171         gtkobject_class = (GtkObjectClass *) klass;
 172         container_class = (GtkContainerClass *) klass;
 173
 174         parent_class            = g_type_class_peek_parent (klass);
 175         gobject_class->finalize = modest_msg_view_finalize;
 176         gobject_class->set_property = set_property;
 177         gobject_class->get_property = get_property;
 178         gtkobject_class->destroy = modest_msg_view_destroy;
 179
 180         widget_class->realize = realize;
 181         widget_class->unrealize = unrealize;
 182         widget_class->expose_event = expose;
 183         widget_class->size_request = size_request;
 184         widget_class->size_allocate = size_allocate;
 185
 186         container_class->forall = forall;
 187         container_class->remove = container_remove;
 188
 189         klass->set_scroll_adjustments = set_scroll_adjustments;
 190
 191         g_type_class_add_private (gobject_class, sizeof(ModestMsgViewPrivate));
 192
 193         g_object_class_install_property (gobject_class,
 194                                          PROP_HADJUSTMENT,
 195                                          g_param_spec_object ("hadjustment",
 196                                                               _("Horizontal adjustment"),
 197                                                               _("GtkAdjustment with information of the horizontal visible position"),
 198                                                               GTK_TYPE_ADJUSTMENT,
 199                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 200
 201         g_object_class_install_property (gobject_class,
 202                                          PROP_VADJUSTMENT,
 203                                          g_param_spec_object ("vadjustment",
 204                                                               _("Vertical adjustment"),
 205                                                               _("GtkAdjustment with information of the vertical visible position"),
 206                                                               GTK_TYPE_ADJUSTMENT,
 207                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 208
 209         g_object_class_install_property (gobject_class,
 210                                          PROP_SHADOW_TYPE,
 211                                          g_param_spec_enum ("shadow_type",
 212                                                             _("Shadow type"),
 213                                                             _("Kind of shadow that's shown around the view"),
 214                                                             GTK_TYPE_SHADOW_TYPE,
 215                                                             GTK_SHADOW_IN,
 216                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 217
 218         signals[LINK_CLICKED_SIGNAL] =
 219                 g_signal_new ("link_clicked",
 220                               G_TYPE_FROM_CLASS (gobject_class),
 221                               G_SIGNAL_RUN_FIRST,
 222                               G_STRUCT_OFFSET(ModestMsgViewClass, link_clicked),
 223                               NULL, NULL,
 224                               g_cclosure_marshal_VOID__STRING,
 225                               G_TYPE_NONE, 1, G_TYPE_STRING);
 226
 227         signals[ATTACHMENT_CLICKED_SIGNAL] =
 228                 g_signal_new ("attachment_clicked",
 229                               G_TYPE_FROM_CLASS (gobject_class),
 230                               G_SIGNAL_RUN_FIRST,
 231                               G_STRUCT_OFFSET(ModestMsgViewClass, attachment_clicked),
 232                               NULL, NULL,
 233                               g_cclosure_marshal_VOID__POINTER,
 234                               G_TYPE_NONE, 1, G_TYPE_INT);
 235
 236         signals[LINK_HOVER_SIGNAL] =
 237                 g_signal_new ("link_hover",
 238                               G_TYPE_FROM_CLASS (gobject_class),
 239                               G_SIGNAL_RUN_FIRST,
 240                               G_STRUCT_OFFSET(ModestMsgViewClass, link_hover),
 241                               NULL, NULL,
 242                               g_cclosure_marshal_VOID__STRING,
 243                               G_TYPE_NONE, 1, G_TYPE_STRING);
 244
 245         signals[RECPT_ACTIVATED_SIGNAL] =
 246                 g_signal_new ("recpt_activated",
 247                               G_TYPE_FROM_CLASS (gobject_class),
 248                               G_SIGNAL_RUN_FIRST,
 249                               G_STRUCT_OFFSET(ModestMsgViewClass, recpt_activated),
 250                               NULL, NULL,
 251                               g_cclosure_marshal_VOID__STRING,
 252                               G_TYPE_NONE, 1, G_TYPE_STRING);
 253
 254         widget_class->set_scroll_adjustments_signal =
 255                 g_signal_new ("set_scroll_adjustments",
 256                               G_OBJECT_CLASS_TYPE (gobject_class),
 257                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 258                               G_STRUCT_OFFSET (ModestMsgViewClass, set_scroll_adjustments),
 259                               NULL, NULL,
 260                               modest_marshal_VOID__POINTER_POINTER,
 261                               G_TYPE_NONE, 2,
 262                               GTK_TYPE_ADJUSTMENT,
 263                               GTK_TYPE_ADJUSTMENT);
 264 }
 265
 266 static void
 267 set_property (GObject *object,
 268               guint prop_id,
 269               const GValue *value,
 270               GParamSpec *pspec)
 271 {
 272         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 273
 274         switch (prop_id) {
 275         case PROP_HADJUSTMENT:
 276                 modest_msg_view_set_hadjustment (msg_view, g_value_get_object (value));
 277                 break;
 278         case PROP_VADJUSTMENT:
 279                 modest_msg_view_set_vadjustment (msg_view, g_value_get_object (value));
 280                 break;
 281         case PROP_SHADOW_TYPE:
 282                 modest_msg_view_set_shadow_type (msg_view, g_value_get_enum (value));
 283                 break;
 284         default:
 285                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 286                 break;
 287         }
 288 }
 289
 290 static void
 291 get_property (GObject *object,
 292               guint prop_id,
 293               GValue *value,
 294               GParamSpec *pspec)
 295 {
 296         ModestMsgView *msg_view = MODEST_MSG_VIEW (object);
 297         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 298
 299         switch (prop_id) {
 300         case PROP_HADJUSTMENT:
 301                 g_value_set_object (value, priv->hadj);
 302                 break;
 303         case PROP_VADJUSTMENT:
 304                 g_value_set_object (value, priv->vadj);
 305                 break;
 306         case PROP_SHADOW_TYPE:
 307                 g_value_set_enum (value, priv->shadow_type);
 308                 break;
 309         default:
 310                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 311                 break;
 312         }
 313 }
 314
 315 static void
 316 disconnect_hadjustment (ModestMsgView *msg_view)
 317 {
 318         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 319
 320         if (priv->hadj) {
 321                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, msg_view);
 322                 g_object_unref (priv->hadj);
 323                 priv->hadj = NULL;
 324         }
 325 }
 326
 327 static void
 328 disconnect_vadjustment (ModestMsgView *msg_view)
 329 {
 330         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 331
 332         if (priv->vadj) {
 333                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, msg_view);
 334                 g_object_unref (priv->vadj);
 335                 priv->vadj = NULL;
 336         }
 337 }
 338
 339 static void
 340 get_view_allocation (ModestMsgView *msg_view, GtkAllocation *allocation)
 341 {
 342         /* This method gets the allocation of the widget in parent widget. It's the
 343            real position and size of the widget */
 344         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 345
 346         allocation->x = 0;
 347         allocation->y = 0;
 348
 349         if (priv->shadow_type != GTK_SHADOW_NONE) {
 350                 allocation->x = GTK_WIDGET (msg_view)->style->xthickness;
 351                 allocation->y = GTK_WIDGET (msg_view)->style->ythickness;
 352         }
 353
 354         allocation->width = MAX (1, (GTK_WIDGET (msg_view)->allocation.width) - allocation->x * 2);
 355         allocation->height = MAX (1, (GTK_WIDGET (msg_view)->allocation.height) - allocation->y * 2);
 356
 357 }
 358
 359 static void
 360 reclamp_adjustment (GtkAdjustment *adj,
 361                     gboolean *value_changed)
 362 {
 363         gdouble value = adj->value;
 364
 365         /* Correct value to be inside the expected values of a scroll */
 366
 367         value = CLAMP (value, 0, adj->upper - adj->page_size);
 368
 369         if (value != adj->value) {
 370                 adj->value = value;
 371                 if (value_changed)
 372                         *value_changed = TRUE;
 373         } else if (value_changed) {
 374                 *value_changed = FALSE;
 375         }
 376 }
 377
 378 static void
 379 set_hadjustment_values (ModestMsgView *msg_view,
 380                         gboolean *value_changed)
 381 {
 382         GtkAllocation view_allocation;
 383         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 384
 385         get_view_allocation (msg_view, &view_allocation);
 386         hadj->page_size = view_allocation.width;
 387         hadj->step_increment = view_allocation.width * 0.1;
 388         hadj->page_increment = view_allocation.width * 0.9;
 389
 390         hadj->lower = 0;
 391         hadj->upper = view_allocation.width;
 392
 393         reclamp_adjustment (hadj, value_changed);
 394
 395 }
 396
 397 static void
 398 set_vadjustment_values (ModestMsgView *msg_view,
 399                         gboolean *value_changed)
 400 {
 401         GtkAllocation view_allocation;
 402         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 403         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 404         gint full_height = 0;
 405         GtkAdjustment *html_vadj;
 406
 407         get_view_allocation (msg_view, &view_allocation);
 408         vadj->page_size = view_allocation.height;
 409         vadj->step_increment = view_allocation.height * 0.1;
 410         vadj->page_increment = view_allocation.height * 0.9;
 411
 412         vadj->lower = 0;
 413
 414         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 415                 GtkRequisition child_requisition;
 416
 417                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 418                 full_height = child_requisition.height;
 419         } else {
 420                 full_height = 0;
 421         }
 422
 423         /* Get the real height of the embedded html */
 424         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 425                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 426                 full_height += html_vadj->upper;
 427         }
 428
 429         vadj->upper = MAX (view_allocation.height, full_height);
 430
 431         reclamp_adjustment (vadj, value_changed);
 432
 433 }
 434
 435 static void
 436 set_scroll_adjustments (ModestMsgView *msg_view,
 437                         GtkAdjustment *hadj,
 438                         GtkAdjustment *vadj)
 439 {
 440         modest_msg_view_set_hadjustment (msg_view, hadj);
 441         modest_msg_view_set_vadjustment (msg_view, vadj);
 442 }
 443
 444 static void
 445 realize (GtkWidget *widget)
 446 {
 447         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 448         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 449         GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 450         GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 451         GdkWindowAttr attributes;
 452         gint event_mask;
 453         gint attributes_mask;
 454         GtkAllocation view_allocation;
 455
 456         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 457
 458         /* The structure of the GdkWindow's is:
 459          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 460          *    * view_window: a backing store gdkwindow containing the headers and contents
 461          *      being scrolled. This window should have all the visible and non visible
 462          *      widgets inside.
 463          *    * headers_window: gdk window for headers_box.
 464          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 465          *      gtkhtml showing the contents of the mail).
 466          */
 467
 468         attributes.x = widget->allocation.x;
 469         attributes.y = widget->allocation.y;
 470         attributes.width = widget->allocation.width;
 471         attributes.height = widget->allocation.height;
 472         attributes.window_type = GDK_WINDOW_CHILD;
 473         attributes.wclass = GDK_INPUT_OUTPUT;
 474         attributes.visual = gtk_widget_get_visual (widget);
 475         attributes.colormap = gtk_widget_get_colormap (widget);
 476
 477         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 478         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 479         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 480
 481         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 482                                          &attributes, attributes_mask);
 483         gdk_window_set_user_data (widget->window, msg_view);
 484
 485         get_view_allocation (msg_view, &view_allocation);
 486
 487         attributes.x = view_allocation.x;
 488         attributes.y = view_allocation.y;
 489         attributes.width = view_allocation.width;
 490         attributes.height = view_allocation.height;
 491         attributes.event_mask = 0;
 492         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 493         gdk_window_set_user_data (priv->view_window, msg_view);
 494         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 495
 496         attributes.x = -hadj->value;
 497         attributes.y = -vadj->value;
 498         attributes.width = hadj->upper;
 499         if (priv->headers_box)
 500                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 501         else
 502                 attributes.height = 1;
 503         attributes.event_mask = event_mask;
 504
 505         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 506         gdk_window_set_user_data (priv->headers_window, msg_view);
 507
 508         if (priv->headers_box)
 509                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 510
 511         attributes.x = -hadj->value;
 512         if (priv->headers_box)
 513                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 514         else
 515                 attributes.y = -vadj->value;
 516         attributes.width = hadj->upper;
 517         if (priv->headers_box)
 518                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 519         else
 520                 attributes.height = vadj->upper;
 521         attributes.event_mask = event_mask;
 522
 523         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 524         gdk_window_set_user_data (priv->html_window, msg_view);
 525
 526         if (priv->html_scroll)
 527                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 528
 529         widget->style = gtk_style_attach (widget->style, widget->window);
 530         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 531         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 532         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 533
 534         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 535                            GTK_SHADOW_NONE,
 536                            NULL, widget, "msgviewheaders",
 537                            0,0,-1,-1);
 538         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 539                            GTK_SHADOW_NONE,
 540                            NULL, widget, "msgviewcontents",
 541                            0,0,-1,-1);
 542
 543         gdk_window_show (priv->view_window);
 544         gdk_window_show (priv->headers_window);
 545         gdk_window_show (priv->html_window);
 546
 547 }
 548
 549 static void
 550 unrealize (GtkWidget *widget)
 551 {
 552         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 553         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 554
 555         gdk_window_set_user_data (priv->view_window, NULL);
 556         gdk_window_destroy (priv->view_window);
 557         priv->view_window = NULL;
 558
 559         gdk_window_set_user_data (priv->headers_window, NULL);
 560         gdk_window_destroy (priv->headers_window);
 561         priv->headers_window = NULL;
 562
 563         gdk_window_set_user_data (priv->html_window, NULL);
 564         gdk_window_destroy (priv->html_window);
 565         priv->html_window = NULL;
 566
 567         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 568                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 569
 570 }
 571
 572 static gint
 573 expose (GtkWidget *widget,
 574         GdkEventExpose *event)
 575 {
 576         ModestMsgView *msg_view;
 577         ModestMsgViewPrivate *priv;
 578
 579         if (GTK_WIDGET_DRAWABLE (widget)) {
 580                 msg_view = MODEST_MSG_VIEW (widget);
 581                 priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 582                 if (event->window == widget->window) {
 583                         gtk_paint_shadow (widget->style, widget->window,
 584                                           GTK_STATE_NORMAL, priv->shadow_type,
 585                                           &event->area, widget, "msgview",
 586                                           0,0,-1,-1);
 587                 } else if (event->window == priv->headers_window) {
 588                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 589                                            GTK_SHADOW_NONE,
 590                                            &event->area, widget, "msgviewheaders",
 591                                            0,0,-1,-1);
 592                 } else if (event->window == priv->html_window) {
 593                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 594                                            GTK_SHADOW_NONE,
 595                                            &event->area, widget, "msgviewcontents",
 596                                            0,0,-1,-1);
 597                 }
 598                 if (priv->headers_box)
 599                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->headers_box, event);
 600                 if (priv->html_scroll)
 601                         gtk_container_propagate_expose (GTK_CONTAINER (msg_view), priv->html_scroll, event);
 602                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 603         }
 604
 605         return FALSE;
 606 }
 607
 608 static void
 609 forall (GtkContainer *container,
 610         gboolean include_internals,
 611         GtkCallback callback,
 612         gpointer userdata)
 613 {
 614         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 615         g_return_if_fail (callback != NULL);
 616
 617         if (priv->headers_box)
 618                 (*callback) (priv->headers_box, userdata);
 619         if (priv->html_scroll)
 620                 (*callback) (priv->html_scroll, userdata);
 621 }
 622
 623 static void
 624 container_remove (GtkContainer *container,
 625                   GtkWidget *widget)
 626 {
 627         gboolean was_visible = FALSE;
 628         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (container);
 629         was_visible = GTK_WIDGET_VISIBLE (widget);
 630         if (widget == priv->headers_box) {
 631                 gtk_widget_unparent (priv->headers_box);
 632                 priv->headers_box = NULL;
 633         } else if (widget == priv->html_scroll) {
 634                 gtk_widget_unparent (priv->html_scroll);
 635                 priv->html_scroll = NULL;
 636         } else {
 637                 return;
 638         }
 639         if (was_visible)
 640                 gtk_widget_queue_resize (GTK_WIDGET(container));
 641
 642 }
 643
 644 static void
 645 size_request (GtkWidget *widget,
 646               GtkRequisition *req)
 647 {
 648         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (widget);
 649         GtkRequisition child_req;
 650
 651         req->width = 0;
 652         req->height = 0;
 653
 654         gtk_widget_size_request (priv->headers_box, &child_req);
 655         req->width = child_req.width;
 656         req->height += child_req.height;
 657         gtk_widget_size_request (priv->html_scroll, &child_req);
 658         req->width = MAX (child_req.width, req->width);
 659         req->height += child_req.height;
 660
 661 }
 662
 663 static void
 664 size_allocate (GtkWidget *widget,
 665                GtkAllocation *allocation)
 666 {
 667         ModestMsgView *msg_view = MODEST_MSG_VIEW (widget);
 668         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 669         gboolean hadj_value_changed, vadj_value_changed;
 670         GtkAllocation headers_allocation, html_allocation, view_allocation;
 671         GtkAdjustment *html_vadj;
 672
 673         if (GTK_WIDGET_MAPPED (widget) &&
 674             priv->shadow_type != GTK_SHADOW_NONE &&
 675             (allocation->width != widget->allocation.width ||
 676              allocation->height != widget->allocation.height))
 677                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 678
 679         widget->allocation = *allocation;
 680         set_hadjustment_values (msg_view, &hadj_value_changed);
 681         set_vadjustment_values (msg_view, &vadj_value_changed);
 682
 683         get_view_allocation (msg_view, &view_allocation);
 684
 685         headers_allocation.x = 0;
 686         headers_allocation.y = 0;
 687         headers_allocation.width = view_allocation.width;
 688         if (priv->headers_box)
 689                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 690         else
 691                 headers_allocation.height = 0;
 692
 693         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 694
 695         html_allocation.x = 0;
 696         html_allocation.y = headers_allocation.height;
 697         html_allocation.width = view_allocation.width;
 698         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 699
 700         if (GTK_WIDGET_REALIZED (widget)) {
 701                 gdk_window_move_resize (widget->window,
 702                                         allocation->x,
 703                                         allocation->y,
 704                                         allocation->width,
 705                                         allocation->height);
 706
 707                 gdk_window_move_resize (priv->view_window,
 708                                         view_allocation.x,
 709                                         view_allocation.y,
 710                                         view_allocation.width,
 711                                         view_allocation.height);
 712                 gdk_window_move_resize (priv->headers_window,
 713                                         0,
 714                                         (gint) (- priv->vadj->value),
 715                                         allocation->width,
 716                                         headers_allocation.height);
 717                 gdk_window_move_resize (priv->html_window,
 718                                         (gint) (- priv->hadj->value),
 719                                         (gint) (html_allocation.y - priv->vadj->value),
 720                                         (gint) priv->hadj->upper,
 721                                         html_allocation.height);
 722         }
 723
 724         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 725                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 726         }
 727         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 728                 html_allocation.x = 0;
 729                 html_allocation.y = 0;
 730                 html_allocation.width = (gint) priv->hadj->upper;
 731                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 732                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 733         }
 734         gtk_adjustment_changed (priv->hadj);
 735         gtk_adjustment_changed (priv->vadj);
 736
 737         if (hadj_value_changed)
 738                 gtk_adjustment_value_changed (priv->hadj);
 739         if (vadj_value_changed)
 740                 gtk_adjustment_value_changed (priv->vadj);
 741
 742 }
 743
 744 static void
 745 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 746 {
 747         ModestMsgView *msg_view = NULL;
 748         ModestMsgViewPrivate *priv = NULL;
 749
 750         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 751         g_return_if_fail (MODEST_IS_MSG_VIEW (data));
 752
 753         msg_view = MODEST_MSG_VIEW (data);
 754         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 755
 756         if (GTK_WIDGET_REALIZED (msg_view)) {
 757                 GtkAdjustment *hadj = modest_msg_view_get_hadjustment (msg_view);
 758                 GtkAdjustment *vadj = modest_msg_view_get_vadjustment (msg_view);
 759                 gint headers_offset = 0;
 760
 761                 gtk_widget_queue_resize (priv->html_scroll);
 762
 763                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 764                         gint old_x, old_y;
 765                         gint new_x, new_y;
 766                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 767                         new_x = 0;
 768                         new_y = -vadj->value;
 769
 770                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 771
 772                         if (new_x != old_x || new_y != old_y) {
 773                                 gdk_window_move (priv->headers_window, new_x, new_y);
 774                                 gdk_window_process_updates (priv->headers_window, TRUE);
 775                         }
 776                 }
 777
 778                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 779                         gint old_x, old_y;
 780                         gint new_x, new_y;
 781                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 782                         new_x = -hadj->value;
 783                         new_y = headers_offset - vadj->value;
 784
 785                         if (new_x != old_x || new_y != old_y) {
 786                                 gdk_window_move (priv->html_window, new_x, new_y);
 787                                 gdk_window_process_updates (priv->html_window, TRUE);
 788                         }
 789                 }
 790
 791         }
 792 }
 793
 794 static void
 795 html_adjustment_changed (GtkAdjustment *adj,
 796                          gpointer userdata)
 797 {
 798         ModestMsgView *msg_view = MODEST_MSG_VIEW (userdata);
 799         ModestMsgViewPrivate *priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
 800         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 801         gboolean vadj_changed;
 802         gint new_height;
 803
 804         priv->html_scroll->requisition.height = html_vadj->upper;
 805         priv->html_scroll->allocation.height = html_vadj->upper;
 806
 807         set_vadjustment_values (msg_view, &vadj_changed);
 808
 809         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
 810
 811         gtk_adjustment_changed (priv->vadj);
 812         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
 813                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
 814                 gdk_window_process_updates (priv->view_window, TRUE);
 815                 gtk_container_resize_children (GTK_CONTAINER (msg_view));
 816         }
 817
 818 }
 819
 820 static void
 821 modest_msg_view_init (ModestMsgView *obj)
 822 {
 823         ModestMsgViewPrivate *priv;
 824         GtkAdjustment *html_vadj;
 825
 826         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
 827         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
 828         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
 829         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
 830
 831         priv = MODEST_MSG_VIEW_GET_PRIVATE(obj);
 832
 833         priv->hadj = NULL;
 834         priv->vadj = NULL;
 835         priv->shadow_type = GTK_SHADOW_IN;
 836         priv->view_window = NULL;
 837         priv->headers_window = NULL;
 838         priv->html_window = NULL;
 839
 840
 841         gtk_widget_push_composite_child ();
 842         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
 843         gtk_widget_set_composite_name (priv->html_scroll, "contents");
 844         gtk_widget_pop_composite_child ();
 845         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 846
 847         priv->msg                     = NULL;
 848
 849         priv->gtkhtml                 = gtk_html_new();
 850         gtk_html_set_editable        (GTK_HTML(priv->gtkhtml), FALSE);
 851         gtk_html_allow_selection     (GTK_HTML(priv->gtkhtml), TRUE);
 852         gtk_html_set_caret_mode      (GTK_HTML(priv->gtkhtml), FALSE);
 853         gtk_html_set_blocking        (GTK_HTML(priv->gtkhtml), FALSE);
 854         gtk_html_set_images_blocking (GTK_HTML(priv->gtkhtml), FALSE);
 855
 856         priv->mail_header_view        = GTK_WIDGET(modest_mail_header_view_new ());
 857         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
 858
 859         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
 860         gtk_widget_set_no_show_all (priv->attachments_view, TRUE);
 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                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->attachments_view, FALSE, FALSE, 0);
1063
1064         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (self));
1065
1066         if (priv->gtkhtml) {
1067                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->gtkhtml);
1068                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(self));
1069         }
1070
1071         modest_msg_view_set_message (self, msg);
1072
1073         return GTK_WIDGET(self);
1074 }
1075
1076 static void
1077 on_recpt_activated (ModestMailHeaderView *header_view,
1078                     const gchar *address,
1079                     ModestMsgView * view)
1080 {
1081         g_signal_emit (G_OBJECT (view), signals[RECPT_ACTIVATED_SIGNAL], 0, address);
1082 }
1083
1084 static void
1085 on_attachment_activated (ModestAttachmentsView * att_view, gint index, gpointer msg_view)
1086 {
1087
1088
1089         if (index == 0) {
1090                 /* index is 1-based, so 0 indicates an error */
1091                 g_printerr ("modest: invalid attachment index: %d\n", index);
1092                 return;
1093         }
1094
1095         g_signal_emit (G_OBJECT(msg_view), signals[ATTACHMENT_CLICKED_SIGNAL],
1096                        0, index);
1097 }
1098
1099 static gboolean
1100 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1101 {
1102         g_return_val_if_fail (msg_view, FALSE);
1103
1104         g_signal_emit (G_OBJECT(msg_view), signals[LINK_CLICKED_SIGNAL],
1105                        0, uri);
1106
1107         return FALSE;
1108 }
1109
1110
1111 static gboolean
1112 on_link_hover (GtkWidget *widget, const gchar *uri, ModestMsgView *msg_view)
1113 {
1114         g_signal_emit (G_OBJECT(msg_view), signals[LINK_HOVER_SIGNAL],
1115                        0, uri);
1116
1117         return FALSE;
1118 }
1119
1120
1121
1122 static TnyMimePart *
1123 find_cid_image (TnyMsg *msg, const gchar *cid)
1124 {
1125         TnyMimePart *part = NULL;
1126         TnyList *parts;
1127         TnyIterator *iter;
1128
1129         g_return_val_if_fail (msg, NULL);
1130         g_return_val_if_fail (cid, NULL);
1131
1132         parts  = TNY_LIST (tny_simple_list_new());
1133
1134         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1135         iter   = tny_list_create_iterator (parts);
1136
1137         while (!tny_iterator_is_done(iter)) {
1138                 const gchar *part_cid;
1139                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1140                 part_cid = tny_mime_part_get_content_id (part);
1141
1142                 if (part_cid && strcmp (cid, part_cid) == 0)
1143                         break;
1144
1145                 g_object_unref (G_OBJECT(part));
1146
1147                 part = NULL;
1148                 tny_iterator_next (iter);
1149         }
1150
1151         g_object_unref (G_OBJECT(iter));
1152         g_object_unref (G_OBJECT(parts));
1153
1154         return part;
1155 }
1156
1157
1158 static gboolean
1159 on_url_requested (GtkWidget *widget, const gchar *uri,
1160                   GtkHTMLStream *stream, ModestMsgView *msg_view)
1161 {
1162         ModestMsgViewPrivate *priv;
1163         priv = MODEST_MSG_VIEW_GET_PRIVATE (msg_view);
1164
1165         if (g_str_has_prefix (uri, "cid:")) {
1166                 /* +4 ==> skip "cid:" */
1167                 TnyMimePart *part = find_cid_image (priv->msg, uri + 4);
1168                 if (!part) {
1169                         g_printerr ("modest: '%s' not found\n", uri + 4);
1170                         gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
1171                 } else {
1172                         TnyStream *tny_stream =
1173                                 TNY_STREAM(modest_tny_stream_gtkhtml_new(stream));
1174                         tny_mime_part_decode_to_stream ((TnyMimePart*)part,
1175                                                                   tny_stream);
1176                         gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
1177
1178                         g_object_unref (G_OBJECT(tny_stream));
1179                         g_object_unref (G_OBJECT(part));
1180                 }
1181         }
1182
1183         return TRUE;
1184 }
1185
1186 static gboolean
1187 set_html_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1188 {
1189         GtkHTMLStream *gtkhtml_stream;
1190         TnyStream *tny_stream;
1191         ModestMsgViewPrivate *priv;
1192
1193         g_return_val_if_fail (self, FALSE);
1194         g_return_val_if_fail (tny_body, FALSE);
1195
1196         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1197
1198         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1199
1200         tny_stream     = TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1201         tny_stream_reset (tny_stream);
1202
1203         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, tny_stream);
1204         g_object_unref (G_OBJECT(tny_stream));
1205
1206         gtk_html_stream_destroy (gtkhtml_stream);
1207
1208         return TRUE;
1209 }
1210
1211
1212 /* FIXME: this is a hack --> we use the tny_text_buffer_stream to
1213  * get the message text, then write to gtkhtml 'by hand' */
1214 static gboolean
1215 set_text_message (ModestMsgView *self, TnyMimePart *tny_body, TnyMsg *msg)
1216 {
1217         GtkTextBuffer *buf;
1218         GtkTextIter begin, end;
1219         TnyStream* txt_stream, *tny_stream;
1220         GtkHTMLStream *gtkhtml_stream;
1221         gchar *txt;
1222         ModestMsgViewPrivate *priv;
1223
1224         g_return_val_if_fail (self, FALSE);
1225         g_return_val_if_fail (tny_body, FALSE);
1226
1227         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1228
1229         buf            = gtk_text_buffer_new (NULL);
1230         txt_stream     = TNY_STREAM(tny_gtk_text_buffer_stream_new (buf));
1231
1232         tny_stream_reset (txt_stream);
1233
1234         gtkhtml_stream = gtk_html_begin(GTK_HTML(priv->gtkhtml));
1235         tny_stream =  TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream));
1236
1237         // FIXME: tinymail
1238         tny_mime_part_decode_to_stream ((TnyMimePart*)tny_body, txt_stream);
1239         tny_stream_reset (txt_stream);
1240
1241         gtk_text_buffer_get_bounds (buf, &begin, &end);
1242         txt = gtk_text_buffer_get_text (buf, &begin, &end, FALSE);
1243         if (txt) {
1244                 gchar *html = modest_text_utils_convert_to_html (txt);
1245                 tny_stream_write (tny_stream, html, strlen(html));
1246                 tny_stream_reset (tny_stream);
1247                 g_free (txt);
1248                 g_free (html);
1249         }
1250
1251         g_object_unref (G_OBJECT(tny_stream));
1252         g_object_unref (G_OBJECT(txt_stream));
1253         g_object_unref (G_OBJECT(buf));
1254
1255         gtk_html_stream_destroy (gtkhtml_stream);
1256
1257         return TRUE;
1258 }
1259
1260
1261 static gboolean
1262 set_empty_message (ModestMsgView *self)
1263 {
1264         ModestMsgViewPrivate *priv;
1265
1266         g_return_val_if_fail (self, FALSE);
1267         priv           = MODEST_MSG_VIEW_GET_PRIVATE(self);
1268
1269         gtk_html_load_from_string (GTK_HTML(priv->gtkhtml),
1270                                    "", 1);
1271
1272         return TRUE;
1273 }
1274
1275
1276 void
1277 modest_msg_view_set_message (ModestMsgView *self, TnyMsg *msg)
1278 {
1279         TnyMimePart *body;
1280         ModestMsgViewPrivate *priv;
1281         TnyHeader *header;
1282
1283         g_return_if_fail (self);
1284
1285         priv = MODEST_MSG_VIEW_GET_PRIVATE(self);
1286         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1287
1288         if (msg != priv->msg) {
1289                 if (priv->msg)
1290                         g_object_unref (G_OBJECT(priv->msg));
1291                 if (msg)
1292                         g_object_ref   (G_OBJECT(msg));
1293                 priv->msg = msg;
1294         }
1295
1296         if (!msg) {
1297                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1298                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1299                 gtk_widget_hide_all (priv->mail_header_view);
1300                 gtk_widget_hide_all (priv->attachments_view);
1301                 gtk_widget_set_no_show_all (priv->attachments_view, TRUE);
1302                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1303                 set_empty_message (self);
1304                 gtk_widget_queue_resize (GTK_WIDGET(self));
1305                 gtk_widget_queue_draw (GTK_WIDGET(self));
1306                 return;
1307         }
1308
1309         header = tny_msg_get_header (msg);
1310         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1311         g_object_unref (header);
1312
1313         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1314                                              msg);
1315
1316         body = modest_tny_msg_find_body_part (msg,TRUE);
1317         if (body) {
1318                 if (tny_mime_part_content_type_is (body, "text/html"))
1319                         set_html_message (self, body, msg);
1320                 else
1321                         set_text_message (self, body, msg);
1322         } else
1323                 set_empty_message (self);
1324
1325         gtk_widget_show (priv->gtkhtml);
1326         gtk_widget_show_all (priv->mail_header_view);
1327         gtk_widget_show_all (priv->attachments_view);
1328         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1329         gtk_widget_queue_resize (GTK_WIDGET(self));
1330         gtk_widget_queue_draw (GTK_WIDGET(self));
1331
1332         if (priv->hadj != NULL)
1333                 priv->hadj->value = 0.0;
1334         if (priv->vadj != NULL)
1335                 priv->vadj->value = 0.0;
1336
1337 }
1338
1339
1340 TnyMsg*
1341 modest_msg_view_get_message (ModestMsgView *self)
1342 {
1343         g_return_val_if_fail (self, NULL);
1344
1345         return MODEST_MSG_VIEW_GET_PRIVATE(self)->msg;
1346 }
1347