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

   1 /* Copyright (c) 2006, 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <config.h>
  31 #include <tny-gtk-text-buffer-stream.h>
  32 #include <string.h>
  33 #include <regex.h>
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <glib/gi18n.h>
  37 #include <tny-list.h>
  38 #include <tny-simple-list.h>
  39
  40 #include <modest-tny-msg.h>
  41 #include <modest-text-utils.h>
  42 #include <widgets/modest-msg-view.h>
  43 #include <widgets/modest-mail-header-view.h>
  44 #include <widgets/modest-attachments-view.h>
  45 #include <modest-marshal.h>
  46 #include <widgets/modest-gtkhtml-mime-part-view.h>
  47 #include <widgets/modest-gtkhtml-msg-view.h>
  48 #include <widgets/modest-isearch-view.h>
  49
  50
  51 /* 'private'/'protected' functions */
  52 static void     modest_gtkhtml_msg_view_class_init   (ModestGtkhtmlMsgViewClass *klass);
  53 static void     tny_msg_view_init (gpointer g, gpointer iface_data);
  54 static void     tny_mime_part_view_init (gpointer g, gpointer iface_data);
  55 static void     modest_mime_part_view_init (gpointer g, gpointer iface_data);
  56 static void     modest_zoomable_init (gpointer g, gpointer iface_data);
  57 static void     modest_isearch_view_init (gpointer g, gpointer iface_data);
  58 static void     modest_msg_view_init (gpointer g, gpointer iface_data);
  59 static void     modest_gtkhtml_msg_view_init         (ModestGtkhtmlMsgView *obj);
  60 static void     modest_gtkhtml_msg_view_finalize     (GObject *obj);
  61 static void     modest_gtkhtml_msg_view_destroy     (GtkObject *obj);
  62 static void     set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
  63 static void     get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
  64
  65 /* headers signals */
  66 static void on_recpt_activated (ModestMailHeaderView *header_view, const gchar *address, ModestGtkhtmlMsgView *msg_view);
  67 static void on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer userdata);
  68
  69 /* body view signals */
  70 static gboolean on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  71 static gboolean on_fetch_url (GtkWidget *widget, const gchar *uri, TnyStream *stream,
  72                               ModestGtkhtmlMsgView *msg_view);
  73 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  74
  75 #ifdef MAEMO_CHANGES
  76 static void     on_tap_and_hold (GtkWidget *widget, gpointer userdata);
  77 #endif /*MAEMO_CHANGES*/
  78
  79
  80 /* size allocation and drawing handlers */
  81 static void get_view_allocation (ModestGtkhtmlMsgView *msg_view, GtkAllocation *allocation);
  82 static void size_request (GtkWidget *widget, GtkRequisition *req);
  83 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
  84 static void realize (GtkWidget *widget);
  85 static void unrealize (GtkWidget *widget);
  86 static gint expose (GtkWidget *widget, GdkEventExpose *event);
  87 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
  88 static void set_hadjustment_values (ModestGtkhtmlMsgView *msg_view, gboolean *value_changed);
  89 static void set_scroll_adjustments (ModestGtkhtmlMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
  90 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
  91 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
  92 static void disconnect_vadjustment (ModestGtkhtmlMsgView *obj);
  93 static void disconnect_hadjustment (ModestGtkhtmlMsgView *obj);
  94 static gboolean idle_readjust_scroll (ModestGtkhtmlMsgView *obj);
  95
  96 /* GtkContainer methods */
  97 static void forall (GtkContainer *container, gboolean include_internals,
  98                     GtkCallback callback, gpointer userdata);
  99 static void container_remove (GtkContainer *container, GtkWidget *widget);
 100
 101 /* TnyMimePartView implementation */
 102 static void modest_msg_view_mp_clear (TnyMimePartView *self);
 103 static void modest_msg_view_mp_set_part (TnyMimePartView *self, TnyMimePart *part);
 104 static void modest_msg_view_mp_set_part_default (TnyMimePartView *self, TnyMimePart *part);
 105 static TnyMimePart* modest_msg_view_mp_get_part (TnyMimePartView *self);
 106 static TnyMimePart* modest_msg_view_mp_get_part_default (TnyMimePartView *self);
 107 /* ModestMimePartView implementation */
 108 static gboolean modest_msg_view_mp_is_empty (ModestMimePartView *self);
 109 static gboolean modest_msg_view_mp_is_empty_default (ModestMimePartView *self);
 110 /* TnyMsgView implementation */
 111 static TnyMsg *modest_msg_view_get_msg (TnyMsgView *self);
 112 static TnyMsg *modest_msg_view_get_msg_default (TnyMsgView *self);
 113 static void modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg);
 114 static void modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg);
 115 static void modest_msg_view_clear (TnyMsgView *self);
 116 static void modest_msg_view_clear_default (TnyMsgView *self);
 117 static void modest_msg_view_set_unavailable (TnyMsgView *self);
 118 static void modest_msg_view_set_unavailable_default (TnyMsgView *self);
 119 static TnyMimePartView *modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part);
 120 static TnyMimePartView *modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part);
 121 static TnyMsgView *modest_msg_view_create_new_inline_viewer (TnyMsgView *self);
 122 static TnyMsgView *modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self);
 123 /* ModestZoomable implementation */
 124 static gdouble modest_msg_view_get_zoom (ModestZoomable *self);
 125 static void modest_msg_view_set_zoom (ModestZoomable *self, gdouble value);
 126 static gboolean modest_msg_view_zoom_minus (ModestZoomable *self);
 127 static gboolean modest_msg_view_zoom_plus (ModestZoomable *self);
 128 static gdouble modest_msg_view_get_zoom_default (ModestZoomable *self);
 129 static void modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value);
 130 static gboolean modest_msg_view_zoom_minus_default (ModestZoomable *self);
 131 static gboolean modest_msg_view_zoom_plus_default (ModestZoomable *self);
 132 /* ModestISearchView implementation */
 133 static gboolean modest_msg_view_search (ModestISearchView *self, const gchar *string);
 134 static gboolean modest_msg_view_search_default (ModestISearchView *self, const gchar *string);
 135 static gboolean modest_msg_view_search_next (ModestISearchView *self);
 136 static gboolean modest_msg_view_search_next_default (ModestISearchView *self);
 137 /* ModestMsgView implementation */
 138 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self);
 139 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self);
 140 static void modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *vadj);
 141 static void modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *hadj);
 142 static void modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type);
 143 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self);
 144 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority (ModestMsgView *self);
 145 static void modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags);
 146 static GList *modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self);
 147 static GList *modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self);
 148 static void modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self);
 149 static void modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *view, TnyMimePart *attachment);
 150 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self);
 151 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self);
 152 static void modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *vadj);
 153 static void modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *hadj);
 154 static void modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type);
 155 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self);
 156 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self);
 157 static void modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags);
 158 static GList *modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self);
 159 static GList *modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self);
 160 static void modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self);
 161 static void modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *view, TnyMimePart *attachment);
 162
 163 /* internal api */
 164 static TnyMsg   *get_message   (ModestGtkhtmlMsgView *self);
 165 static void     set_message    (ModestGtkhtmlMsgView *self, TnyMsg *tny_msg);
 166 static gboolean is_empty       (ModestGtkhtmlMsgView *self);
 167 static void     set_zoom       (ModestGtkhtmlMsgView *self, gdouble zoom);
 168 static gdouble  get_zoom       (ModestGtkhtmlMsgView *self);
 169 static gboolean search         (ModestGtkhtmlMsgView *self, const gchar *search);
 170 static gboolean search_next    (ModestGtkhtmlMsgView *self);
 171 static GtkAdjustment *get_vadjustment (ModestGtkhtmlMsgView *self);
 172 static GtkAdjustment *get_hadjustment (ModestGtkhtmlMsgView *self);
 173 static void set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj);
 174 static void set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj);
 175 static void set_shadow_type (ModestGtkhtmlMsgView *self, GtkShadowType type);
 176 static GtkShadowType get_shadow_type (ModestGtkhtmlMsgView *self);
 177 static TnyHeaderFlags get_priority (ModestGtkhtmlMsgView *self);
 178 static void set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags);
 179 static GList *get_selected_attachments (ModestGtkhtmlMsgView *self);
 180 static GList *get_attachments (ModestGtkhtmlMsgView *self);
 181 static void grab_focus (ModestGtkhtmlMsgView *self);
 182 static void remove_attachment (ModestGtkhtmlMsgView *view, TnyMimePart *attachment);
 183
 184 /* list properties */
 185 enum {
 186         PROP_0,
 187         PROP_HADJUSTMENT,
 188         PROP_VADJUSTMENT,
 189         PROP_SHADOW_TYPE
 190 };
 191
 192 typedef struct _ModestGtkhtmlMsgViewPrivate ModestGtkhtmlMsgViewPrivate;
 193 struct _ModestGtkhtmlMsgViewPrivate {
 194         GtkWidget   *body_view;
 195         GtkWidget   *mail_header_view;
 196         GtkWidget   *attachments_view;
 197
 198         TnyMsg      *msg;
 199
 200         /* embedded elements */
 201         GtkWidget   *headers_box;
 202         GtkWidget   *html_scroll;
 203         GtkWidget   *attachments_box;
 204
 205         /* internal adjustments for set_scroll_adjustments */
 206         GtkAdjustment *hadj;
 207         GtkAdjustment *vadj;
 208         GtkShadowType shadow_type;
 209
 210         /* gdk windows for drawing */
 211         GdkWindow *view_window;
 212         GdkWindow *headers_window;
 213         GdkWindow *html_window;
 214
 215         /* zoom */
 216         gdouble current_zoom;
 217
 218         /* link click management */
 219         gchar *last_url;
 220 };
 221
 222 #define MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 223                                                                                  MODEST_TYPE_GTKHTML_MSG_VIEW, \
 224                                                                                  ModestGtkhtmlMsgViewPrivate))
 225
 226 /* globals */
 227 static GtkContainerClass *parent_class = NULL;
 228
 229 GType
 230 modest_gtkhtml_msg_view_get_type (void)
 231 {
 232         static GType my_type = 0;
 233         if (!my_type) {
 234                 static const GTypeInfo my_info = {
 235                         sizeof(ModestGtkhtmlMsgViewClass),
 236                         NULL,           /* base init */
 237                         NULL,           /* base finalize */
 238                         (GClassInitFunc) modest_gtkhtml_msg_view_class_init,
 239                         NULL,           /* class finalize */
 240                         NULL,           /* class data */
 241                         sizeof(ModestGtkhtmlMsgView),
 242                         1,              /* n_preallocs */
 243                         (GInstanceInitFunc) modest_gtkhtml_msg_view_init,
 244                         NULL
 245                 };
 246                 static const GInterfaceInfo tny_msg_view_info =
 247                 {
 248                   (GInterfaceInitFunc) tny_msg_view_init, /* interface_init */
 249                   NULL,         /* interface_finalize */
 250                   NULL          /* interface_data */
 251                 };
 252
 253                 static const GInterfaceInfo tny_mime_part_view_info =
 254                 {
 255                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 256                   NULL,         /* interface_finalize */
 257                   NULL          /* interface_data */
 258                 };
 259
 260                 static const GInterfaceInfo modest_mime_part_view_info =
 261                 {
 262                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 263                   NULL,         /* interface_finalize */
 264                   NULL          /* interface_data */
 265                 };
 266
 267                 static const GInterfaceInfo modest_zoomable_info =
 268                 {
 269                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 270                   NULL,         /* interface_finalize */
 271                   NULL          /* interface_data */
 272                 };
 273
 274                 static const GInterfaceInfo modest_isearch_view_info =
 275                 {
 276                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 277                   NULL,         /* interface_finalize */
 278                   NULL          /* interface_data */
 279                 };
 280
 281                 static const GInterfaceInfo modest_msg_view_info =
 282                 {
 283                   (GInterfaceInitFunc) modest_msg_view_init, /* interface_init */
 284                   NULL,         /* interface_finalize */
 285                   NULL          /* interface_data */
 286                 };
 287
 288                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 289                                                   "ModestGtkhtmlMsgView",
 290                                                   &my_info, 0);
 291
 292                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 293                         &tny_mime_part_view_info);
 294
 295                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 296                         &modest_mime_part_view_info);
 297
 298                 g_type_add_interface_static (my_type, TNY_TYPE_MSG_VIEW,
 299                         &tny_msg_view_info);
 300
 301                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 302                         &modest_zoomable_info);
 303
 304                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 305                         &modest_isearch_view_info);
 306
 307                 g_type_add_interface_static (my_type, MODEST_TYPE_MSG_VIEW,
 308                         &modest_msg_view_info);
 309         }
 310         return my_type;
 311 }
 312
 313 static void
 314 modest_gtkhtml_msg_view_class_init (ModestGtkhtmlMsgViewClass *klass)
 315 {
 316         GObjectClass *gobject_class;
 317         GtkWidgetClass *widget_class;
 318         GtkObjectClass *gtkobject_class;
 319         GtkContainerClass *container_class;
 320         gobject_class = (GObjectClass*) klass;
 321         widget_class = (GtkWidgetClass *) klass;
 322         gtkobject_class = (GtkObjectClass *) klass;
 323         container_class = (GtkContainerClass *) klass;
 324
 325         parent_class            = g_type_class_peek_parent (klass);
 326         gobject_class->finalize = modest_gtkhtml_msg_view_finalize;
 327         gobject_class->set_property = set_property;
 328         gobject_class->get_property = get_property;
 329         gtkobject_class->destroy = modest_gtkhtml_msg_view_destroy;
 330
 331         widget_class->realize = realize;
 332         widget_class->unrealize = unrealize;
 333         widget_class->expose_event = expose;
 334         widget_class->size_request = size_request;
 335         widget_class->size_allocate = size_allocate;
 336
 337         container_class->forall = forall;
 338         container_class->remove = container_remove;
 339
 340         klass->set_scroll_adjustments = set_scroll_adjustments;
 341         klass->get_part_func = modest_msg_view_mp_get_part_default;
 342         klass->set_part_func = modest_msg_view_mp_set_part_default;
 343         klass->is_empty_func = modest_msg_view_mp_is_empty_default;
 344         klass->get_msg_func = modest_msg_view_get_msg_default;
 345         klass->set_msg_func = modest_msg_view_set_msg_default;
 346         klass->set_unavailable_func = modest_msg_view_set_unavailable_default;
 347         klass->clear_func = modest_msg_view_clear_default;
 348         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for_default;
 349         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer_default;
 350         klass->get_zoom_func = modest_msg_view_get_zoom_default;
 351         klass->set_zoom_func = modest_msg_view_set_zoom_default;
 352         klass->zoom_minus_func = modest_msg_view_zoom_minus_default;
 353         klass->zoom_plus_func = modest_msg_view_zoom_plus_default;
 354         klass->search_func = modest_msg_view_search_default;
 355         klass->search_next_func = modest_msg_view_search_next_default;
 356         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment_default;
 357         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment_default;
 358         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment_default;
 359         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment_default;
 360         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type_default;
 361         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type_default;
 362         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority_default;
 363         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority_default;
 364         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments_default;
 365         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments_default;
 366         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus_default;
 367         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment_default;
 368
 369         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMsgViewPrivate));
 370
 371         g_object_class_install_property (gobject_class,
 372                                          PROP_HADJUSTMENT,
 373                                          g_param_spec_object ("hadjustment",
 374                                                               _("Horizontal adjustment"),
 375                                                               _("GtkAdjustment with information of the horizontal visible position"),
 376                                                               GTK_TYPE_ADJUSTMENT,
 377                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 378
 379         g_object_class_install_property (gobject_class,
 380                                          PROP_VADJUSTMENT,
 381                                          g_param_spec_object ("vadjustment",
 382                                                               _("Vertical adjustment"),
 383                                                               _("GtkAdjustment with information of the vertical visible position"),
 384                                                               GTK_TYPE_ADJUSTMENT,
 385                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 386
 387         g_object_class_install_property (gobject_class,
 388                                          PROP_SHADOW_TYPE,
 389                                          g_param_spec_enum ("shadow_type",
 390                                                             _("Shadow type"),
 391                                                             _("Kind of shadow that's shown around the view"),
 392                                                             GTK_TYPE_SHADOW_TYPE,
 393                                                             GTK_SHADOW_IN,
 394                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 395
 396         widget_class->set_scroll_adjustments_signal =
 397                 g_signal_new ("set_scroll_adjustments",
 398                               G_OBJECT_CLASS_TYPE (gobject_class),
 399                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 400                               G_STRUCT_OFFSET (ModestGtkhtmlMsgViewClass, set_scroll_adjustments),
 401                               NULL, NULL,
 402                               modest_marshal_VOID__POINTER_POINTER,
 403                               G_TYPE_NONE, 2,
 404                               GTK_TYPE_ADJUSTMENT,
 405                               GTK_TYPE_ADJUSTMENT);
 406 }
 407
 408 static void
 409 set_property (GObject *object,
 410               guint prop_id,
 411               const GValue *value,
 412               GParamSpec *pspec)
 413 {
 414         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 415
 416         switch (prop_id) {
 417         case PROP_HADJUSTMENT:
 418                 set_hadjustment (self, g_value_get_object (value));
 419                 break;
 420         case PROP_VADJUSTMENT:
 421                 set_vadjustment (self, g_value_get_object (value));
 422                 break;
 423         case PROP_SHADOW_TYPE:
 424                 set_shadow_type (self, g_value_get_enum (value));
 425                 break;
 426         default:
 427                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 428                 break;
 429         }
 430 }
 431
 432 static void
 433 get_property (GObject *object,
 434               guint prop_id,
 435               GValue *value,
 436               GParamSpec *pspec)
 437 {
 438         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 439         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 440
 441         switch (prop_id) {
 442         case PROP_HADJUSTMENT:
 443                 g_value_set_object (value, priv->hadj);
 444                 break;
 445         case PROP_VADJUSTMENT:
 446                 g_value_set_object (value, priv->vadj);
 447                 break;
 448         case PROP_SHADOW_TYPE:
 449                 g_value_set_enum (value, priv->shadow_type);
 450                 break;
 451         default:
 452                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 453                 break;
 454         }
 455 }
 456
 457 static void
 458 disconnect_hadjustment (ModestGtkhtmlMsgView *self)
 459 {
 460         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 461
 462         if (priv->hadj) {
 463                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, self);
 464                 g_object_unref (priv->hadj);
 465                 priv->hadj = NULL;
 466         }
 467 }
 468
 469 static void
 470 disconnect_vadjustment (ModestGtkhtmlMsgView *self)
 471 {
 472         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 473
 474         if (priv->vadj) {
 475                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, self);
 476                 g_object_unref (priv->vadj);
 477                 priv->vadj = NULL;
 478         }
 479 }
 480
 481 static void
 482 get_view_allocation (ModestGtkhtmlMsgView *self, GtkAllocation *allocation)
 483 {
 484         /* This method gets the allocation of the widget in parent widget. It's the
 485            real position and size of the widget */
 486         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 487
 488         allocation->x = 0;
 489         allocation->y = 0;
 490
 491         if (priv->shadow_type != GTK_SHADOW_NONE) {
 492                 allocation->x = GTK_WIDGET (self)->style->xthickness;
 493                 allocation->y = GTK_WIDGET (self)->style->ythickness;
 494         }
 495
 496         allocation->width = MAX (1, (GTK_WIDGET (self)->allocation.width) - allocation->x * 2);
 497         allocation->height = MAX (1, (GTK_WIDGET (self)->allocation.height) - allocation->y * 2);
 498
 499 }
 500
 501 static void
 502 reclamp_adjustment (GtkAdjustment *adj,
 503                     gboolean *value_changed)
 504 {
 505         gdouble value = adj->value;
 506
 507         /* Correct value to be inside the expected values of a scroll */
 508
 509         value = CLAMP (value, 0, adj->upper - adj->page_size);
 510
 511         if (value != adj->value) {
 512                 adj->value = value;
 513                 if (value_changed)
 514                         *value_changed = TRUE;
 515         } else if (value_changed) {
 516                 *value_changed = FALSE;
 517         }
 518 }
 519
 520 static void
 521 set_hadjustment_values (ModestGtkhtmlMsgView *self,
 522                         gboolean *value_changed)
 523 {
 524         GtkAllocation view_allocation;
 525         GtkAdjustment *hadj = get_hadjustment (self);
 526
 527         get_view_allocation (self, &view_allocation);
 528         hadj->page_size = view_allocation.width;
 529         hadj->step_increment = view_allocation.width * 0.1;
 530         hadj->page_increment = view_allocation.width * 0.9;
 531
 532         hadj->lower = 0;
 533         hadj->upper = view_allocation.width;
 534
 535         reclamp_adjustment (hadj, value_changed);
 536
 537 }
 538
 539 static void
 540 set_vadjustment_values (ModestGtkhtmlMsgView *self,
 541                         gboolean *value_changed)
 542 {
 543         GtkAllocation view_allocation;
 544         GtkAdjustment *vadj = get_vadjustment (self);
 545         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 546         gint full_height = 0;
 547         GtkAdjustment *html_vadj;
 548
 549         get_view_allocation (self, &view_allocation);
 550         vadj->page_size = view_allocation.height;
 551         vadj->step_increment = view_allocation.height * 0.1;
 552         vadj->page_increment = view_allocation.height * 0.9;
 553
 554         vadj->lower = 0;
 555
 556         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 557                 GtkRequisition child_requisition;
 558
 559                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 560                 full_height = child_requisition.height;
 561         } else {
 562                 full_height = 0;
 563         }
 564
 565         /* Get the real height of the embedded html */
 566         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 567                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 568                 full_height += html_vadj->upper;
 569         }
 570
 571         vadj->upper = MAX (view_allocation.height, full_height);
 572
 573         reclamp_adjustment (vadj, value_changed);
 574
 575 }
 576
 577 static void
 578 set_scroll_adjustments (ModestGtkhtmlMsgView *self,
 579                         GtkAdjustment *hadj,
 580                         GtkAdjustment *vadj)
 581 {
 582         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 583         set_hadjustment (self, hadj);
 584         set_vadjustment (self, vadj);
 585
 586         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->body_view), vadj);
 587 }
 588
 589 static void
 590 realize (GtkWidget *widget)
 591 {
 592         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 593         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 594         GtkAdjustment *hadj = get_hadjustment (self);
 595         GtkAdjustment *vadj = get_vadjustment (self);
 596         GdkWindowAttr attributes;
 597         gint event_mask;
 598         gint attributes_mask;
 599         GtkAllocation view_allocation;
 600
 601         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 602
 603         /* The structure of the GdkWindow's is:
 604          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 605          *    * view_window: a backing store gdkwindow containing the headers and contents
 606          *      being scrolled. This window should have all the visible and non visible
 607          *      widgets inside.
 608          *    * headers_window: gdk window for headers_box.
 609          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 610          *      body view showing the contents of the mail).
 611          */
 612
 613         attributes.x = widget->allocation.x;
 614         attributes.y = widget->allocation.y;
 615         attributes.width = widget->allocation.width;
 616         attributes.height = widget->allocation.height;
 617         attributes.window_type = GDK_WINDOW_CHILD;
 618         attributes.wclass = GDK_INPUT_OUTPUT;
 619         attributes.visual = gtk_widget_get_visual (widget);
 620         attributes.colormap = gtk_widget_get_colormap (widget);
 621
 622         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 623         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 624         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 625
 626         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 627                                          &attributes, attributes_mask);
 628         gdk_window_set_user_data (widget->window, self);
 629
 630         get_view_allocation (self, &view_allocation);
 631
 632         attributes.x = view_allocation.x;
 633         attributes.y = view_allocation.y;
 634         attributes.width = view_allocation.width;
 635         attributes.height = view_allocation.height;
 636         attributes.event_mask = 0;
 637         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 638         gdk_window_set_user_data (priv->view_window, self);
 639         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 640
 641         attributes.x = -hadj->value;
 642         attributes.y = -vadj->value;
 643         attributes.width = hadj->upper;
 644         if (priv->headers_box)
 645                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 646         else
 647                 attributes.height = 1;
 648         attributes.event_mask = event_mask;
 649
 650         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 651         gdk_window_set_user_data (priv->headers_window, self);
 652
 653         if (priv->headers_box)
 654                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 655
 656         attributes.x = -hadj->value;
 657         if (priv->headers_box)
 658                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 659         else
 660                 attributes.y = -vadj->value;
 661         attributes.width = hadj->upper;
 662         if (priv->headers_box)
 663                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 664         else
 665                 attributes.height = vadj->upper;
 666         attributes.event_mask = event_mask;
 667
 668         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 669         gdk_window_set_user_data (priv->html_window, self);
 670
 671         if (priv->html_scroll)
 672                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 673
 674         widget->style = gtk_style_attach (widget->style, widget->window);
 675         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 676         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 677         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 678
 679         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 680                            GTK_SHADOW_NONE,
 681                            NULL, widget, "msgviewheaders",
 682                            0,0,-1,-1);
 683         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 684                            GTK_SHADOW_NONE,
 685                            NULL, widget, "msgviewcontents",
 686                            0,0,-1,-1);
 687
 688         gdk_window_show (priv->view_window);
 689         gdk_window_show (priv->headers_window);
 690         gdk_window_show (priv->html_window);
 691
 692 }
 693
 694 static void
 695 unrealize (GtkWidget *widget)
 696 {
 697         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 698         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 699
 700         gdk_window_set_user_data (priv->view_window, NULL);
 701         gdk_window_destroy (priv->view_window);
 702         priv->view_window = NULL;
 703
 704         gdk_window_set_user_data (priv->headers_window, NULL);
 705         gdk_window_destroy (priv->headers_window);
 706         priv->headers_window = NULL;
 707
 708         gdk_window_set_user_data (priv->html_window, NULL);
 709         gdk_window_destroy (priv->html_window);
 710         priv->html_window = NULL;
 711
 712         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 713                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 714
 715 }
 716
 717 static gint
 718 expose (GtkWidget *widget,
 719         GdkEventExpose *event)
 720 {
 721         ModestGtkhtmlMsgView *self;
 722         ModestGtkhtmlMsgViewPrivate *priv;
 723
 724         if (GTK_WIDGET_DRAWABLE (widget)) {
 725                 self = MODEST_GTKHTML_MSG_VIEW (widget);
 726                 priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 727                 if (event->window == widget->window) {
 728                         gtk_paint_shadow (widget->style, widget->window,
 729                                           GTK_STATE_NORMAL, priv->shadow_type,
 730                                           &event->area, widget, "msgview",
 731                                           0,0,-1,-1);
 732                 } else if (event->window == priv->headers_window) {
 733                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 734                                            GTK_SHADOW_NONE,
 735                                            &event->area, widget, "msgviewheaders",
 736                                            0,0,-1,-1);
 737                 } else if (event->window == priv->html_window) {
 738                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 739                                            GTK_SHADOW_NONE,
 740                                            &event->area, widget, "msgviewcontents",
 741                                            0,0,-1,-1);
 742                 }
 743                 if (priv->headers_box)
 744                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->headers_box, event);
 745                 if (priv->html_scroll)
 746                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->html_scroll, event);
 747                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 748         }
 749
 750         return FALSE;
 751 }
 752
 753 static void
 754 forall (GtkContainer *container,
 755         gboolean include_internals,
 756         GtkCallback callback,
 757         gpointer userdata)
 758 {
 759         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 760         g_return_if_fail (callback != NULL);
 761
 762         if (priv->headers_box)
 763                 (*callback) (priv->headers_box, userdata);
 764         if (priv->html_scroll)
 765                 (*callback) (priv->html_scroll, userdata);
 766 }
 767
 768 static void
 769 container_remove (GtkContainer *container,
 770                   GtkWidget *widget)
 771 {
 772         gboolean was_visible = FALSE;
 773         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 774         was_visible = GTK_WIDGET_VISIBLE (widget);
 775         if (widget == priv->headers_box) {
 776                 gtk_widget_unparent (priv->headers_box);
 777                 priv->headers_box = NULL;
 778         } else if (widget == priv->html_scroll) {
 779                 gtk_widget_unparent (priv->html_scroll);
 780                 priv->html_scroll = NULL;
 781         } else {
 782                 return;
 783         }
 784         if (was_visible)
 785                 gtk_widget_queue_resize (GTK_WIDGET(container));
 786
 787 }
 788
 789 static void
 790 size_request (GtkWidget *widget,
 791               GtkRequisition *req)
 792 {
 793         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (widget);
 794         GtkRequisition child_req;
 795
 796         req->width = 0;
 797         req->height = 0;
 798
 799         gtk_widget_size_request (priv->headers_box, &child_req);
 800         req->width = child_req.width;
 801         req->height += child_req.height;
 802         gtk_widget_size_request (priv->html_scroll, &child_req);
 803         req->width = MAX (child_req.width, req->width);
 804         req->height += child_req.height;
 805
 806 }
 807
 808 static void
 809 size_allocate (GtkWidget *widget,
 810                GtkAllocation *allocation)
 811 {
 812         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 813         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 814         gboolean hadj_value_changed, vadj_value_changed;
 815         GtkAllocation headers_allocation, html_allocation, view_allocation;
 816         GtkAdjustment *html_vadj;
 817
 818         if (GTK_WIDGET_MAPPED (widget) &&
 819             priv->shadow_type != GTK_SHADOW_NONE &&
 820             (allocation->width != widget->allocation.width ||
 821              allocation->height != widget->allocation.height))
 822                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 823
 824         widget->allocation = *allocation;
 825         set_hadjustment_values (self, &hadj_value_changed);
 826         set_vadjustment_values (self, &vadj_value_changed);
 827
 828         get_view_allocation (self, &view_allocation);
 829
 830         headers_allocation.x = 0;
 831         headers_allocation.y = 0;
 832         headers_allocation.width = view_allocation.width;
 833         if (priv->headers_box)
 834                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 835         else
 836                 headers_allocation.height = 0;
 837
 838         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 839
 840         html_allocation.x = 0;
 841         html_allocation.y = headers_allocation.height;
 842         html_allocation.width = view_allocation.width;
 843         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 844
 845         if (GTK_WIDGET_REALIZED (widget)) {
 846                 gdk_window_move_resize (widget->window,
 847                                         allocation->x,
 848                                         allocation->y,
 849                                         allocation->width,
 850                                         allocation->height);
 851
 852                 gdk_window_move_resize (priv->view_window,
 853                                         view_allocation.x,
 854                                         view_allocation.y,
 855                                         view_allocation.width,
 856                                         view_allocation.height);
 857                 gdk_window_move_resize (priv->headers_window,
 858                                         0,
 859                                         (gint) (- priv->vadj->value),
 860                                         allocation->width,
 861                                         headers_allocation.height);
 862                 gdk_window_move_resize (priv->html_window,
 863                                         (gint) (- priv->hadj->value),
 864                                         (gint) (html_allocation.y - priv->vadj->value),
 865                                         (gint) priv->hadj->upper,
 866                                         html_allocation.height);
 867         }
 868
 869         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 870                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 871         }
 872         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 873                 html_allocation.x = 0;
 874                 html_allocation.y = 0;
 875                 html_allocation.width = (gint) priv->hadj->upper;
 876                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 877                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 878         }
 879         gtk_adjustment_changed (priv->hadj);
 880         gtk_adjustment_changed (priv->vadj);
 881
 882         if (hadj_value_changed)
 883                 gtk_adjustment_value_changed (priv->hadj);
 884         if (vadj_value_changed)
 885                 gtk_adjustment_value_changed (priv->vadj);
 886
 887 }
 888
 889 static void
 890 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 891 {
 892         ModestGtkhtmlMsgView *self = NULL;
 893         ModestGtkhtmlMsgViewPrivate *priv = NULL;
 894
 895         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 896         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (data));
 897
 898         self = MODEST_GTKHTML_MSG_VIEW (data);
 899         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 900
 901         if (GTK_WIDGET_REALIZED (self)) {
 902                 GtkAdjustment *hadj = get_hadjustment (self);
 903                 GtkAdjustment *vadj = get_vadjustment (self);
 904                 gint headers_offset = 0;
 905
 906                 gtk_widget_queue_resize (priv->html_scroll);
 907
 908                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 909                         gint old_x, old_y;
 910                         gint new_x, new_y;
 911                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 912                         new_x = 0;
 913                         new_y = -vadj->value;
 914
 915                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 916
 917                         if (new_x != old_x || new_y != old_y) {
 918                                 gdk_window_move (priv->headers_window, new_x, new_y);
 919                                 gdk_window_process_updates (priv->headers_window, TRUE);
 920                         }
 921                 }
 922
 923                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 924                         gint old_x, old_y;
 925                         gint new_x, new_y;
 926                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 927                         new_x = -hadj->value;
 928                         new_y = headers_offset - vadj->value;
 929
 930                         if (new_x != old_x || new_y != old_y) {
 931                                 gdk_window_move (priv->html_window, new_x, new_y);
 932                                 gdk_window_process_updates (priv->html_window, TRUE);
 933                         }
 934                 }
 935
 936         }
 937 }
 938
 939 static void
 940 html_adjustment_changed (GtkAdjustment *adj,
 941                          gpointer userdata)
 942 {
 943         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (userdata);
 944         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 945         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 946         gboolean vadj_changed;
 947         gint new_height;
 948
 949         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
 950
 951         priv->html_scroll->requisition.height = html_vadj->upper;
 952         if (html_vadj->upper == priv->html_scroll->allocation.height)
 953                 return;
 954         priv->html_scroll->allocation.height = html_vadj->upper;
 955
 956         set_vadjustment_values (self, &vadj_changed);
 957
 958         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
 959
 960         gtk_adjustment_changed (priv->vadj);
 961         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
 962                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
 963                 gdk_window_process_updates (priv->view_window, TRUE);
 964                 gtk_container_resize_children (GTK_CONTAINER (self));
 965         }
 966
 967 }
 968
 969 gboolean
 970 idle_readjust_scroll (ModestGtkhtmlMsgView *self)
 971 {
 972         if (GTK_WIDGET_DRAWABLE (self)) {
 973                 ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 974                 GtkAdjustment *html_vadj;
 975                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 976                 html_vadj->page_size = html_vadj->upper;
 977                 gtk_adjustment_changed (html_vadj);
 978                 gtk_widget_queue_resize (GTK_WIDGET (self));
 979                 gtk_widget_queue_draw (GTK_WIDGET (self));
 980
 981                 /* Just another hack for making readjust really work. This forces an update
 982                  * of the scroll, and then, make the scroll really update properly the
 983                  * the size and not corrupt scrollable area */
 984                 gtk_adjustment_set_value (priv->vadj, 1.0);
 985                 gtk_adjustment_set_value (priv->vadj, 0.0);
 986         }
 987         g_object_unref (G_OBJECT (self));
 988         return FALSE;
 989 }
 990
 991 static void
 992 modest_gtkhtml_msg_view_init (ModestGtkhtmlMsgView *obj)
 993 {
 994         ModestGtkhtmlMsgViewPrivate *priv;
 995         GtkAdjustment *html_vadj;
 996         GtkWidget *separator;
 997
 998         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
 999         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
1000         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
1001         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
1002
1003         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(obj);
1004
1005         priv->current_zoom = 1.0;
1006
1007         priv->hadj = NULL;
1008         priv->vadj = NULL;
1009         priv->shadow_type = GTK_SHADOW_IN;
1010         priv->view_window = NULL;
1011         priv->headers_window = NULL;
1012         priv->html_window = NULL;
1013
1014         gtk_widget_push_composite_child ();
1015         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
1016         gtk_widget_set_composite_name (priv->html_scroll, "contents");
1017         gtk_widget_pop_composite_child ();
1018         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1019
1020         priv->msg                     = NULL;
1021
1022         priv->body_view                 = GTK_WIDGET (g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL));
1023         priv->mail_header_view        = GTK_WIDGET(modest_mail_header_view_new (TRUE));
1024         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1025
1026         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
1027
1028         g_signal_connect (G_OBJECT(priv->body_view), "activate_link",
1029                                        G_CALLBACK(on_activate_link), obj);
1030         g_signal_connect (G_OBJECT(priv->body_view), "fetch_url",
1031                                        G_CALLBACK(on_fetch_url), obj);
1032         g_signal_connect (G_OBJECT(priv->body_view), "link_hover",
1033                                        G_CALLBACK(on_link_hover), obj);
1034
1035         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
1036                           G_CALLBACK (on_recpt_activated), obj);
1037
1038         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
1039                           G_CALLBACK (on_attachment_activated), obj);
1040
1041         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1042
1043         g_signal_connect (G_OBJECT (html_vadj), "changed",
1044                           G_CALLBACK (html_adjustment_changed), obj);
1045
1046         gtk_widget_push_composite_child ();
1047         priv->headers_box = gtk_vbox_new (0, FALSE);
1048         gtk_widget_set_composite_name (priv->headers_box, "headers");
1049         gtk_widget_pop_composite_child ();
1050
1051         if (priv->mail_header_view)
1052                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1053
1054         if (priv->attachments_view) {
1055                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1056
1057                 priv->attachments_box = (GtkWidget *)
1058                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1059                                                                    att_label,
1060                                                                    priv->attachments_view,
1061                                                                    FALSE, FALSE);
1062                 gtk_widget_hide_all (priv->attachments_box);
1063                 g_free (att_label);
1064         }
1065
1066         separator = gtk_hseparator_new ();
1067         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1068
1069         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (obj));
1070
1071         if (priv->body_view) {
1072                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->body_view);
1073                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(obj));
1074 #ifdef MAEMO_CHANGES
1075                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->body_view), NULL, NULL, 0);
1076                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1077 #endif
1078         }
1079
1080 }
1081
1082
1083 static void
1084 modest_gtkhtml_msg_view_finalize (GObject *obj)
1085 {
1086         ModestGtkhtmlMsgViewPrivate *priv;
1087         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (obj);
1088
1089         if (priv->msg) {
1090                 g_object_unref (G_OBJECT(priv->msg));
1091                 priv->msg = NULL;
1092         }
1093
1094         /* we cannot disconnect sigs, because priv->body_view is
1095          * already dead */
1096
1097         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1098         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1099
1100         priv->body_view = NULL;
1101         priv->attachments_view = NULL;
1102
1103         G_OBJECT_CLASS(parent_class)->finalize (obj);
1104 }
1105
1106 static void
1107 modest_gtkhtml_msg_view_destroy (GtkObject *obj)
1108 {
1109         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1110         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1111
1112         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
1113 }
1114
1115 /* INTERNAL METHODS */
1116
1117 static GtkAdjustment *
1118 get_vadjustment (ModestGtkhtmlMsgView *self)
1119 {
1120         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1121
1122         if (!priv->vadj)
1123                 set_vadjustment (self, NULL);
1124
1125         return priv->vadj;
1126
1127 }
1128
1129 static GtkAdjustment *
1130 get_hadjustment (ModestGtkhtmlMsgView *self)
1131 {
1132         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1133
1134         if (!priv->hadj)
1135                 set_hadjustment (self, NULL);
1136
1137         return priv->hadj;
1138
1139 }
1140
1141 static void
1142 set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj)
1143 {
1144         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1145         gboolean value_changed;
1146
1147         if (hadj && hadj == priv->hadj)
1148                 return;
1149
1150         if (!hadj)
1151                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
1152         disconnect_hadjustment (self);
1153         g_object_ref (G_OBJECT (hadj));
1154         gtk_object_sink (GTK_OBJECT (hadj));
1155         priv->hadj = hadj;
1156         set_hadjustment_values (self, &value_changed);
1157
1158         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1159                           self);
1160
1161         gtk_adjustment_changed (hadj);
1162         if (value_changed)
1163                 gtk_adjustment_value_changed (hadj);
1164         else
1165                 adjustment_value_changed (hadj, self);
1166
1167         g_object_notify (G_OBJECT (self), "hadjustment");
1168 }
1169
1170 static void
1171 set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj)
1172 {
1173         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1174         gboolean value_changed;
1175
1176         if (vadj && vadj == priv->vadj)
1177                 return;
1178
1179         if (!vadj)
1180                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1181         disconnect_vadjustment (self);
1182         g_object_ref (G_OBJECT (vadj));
1183         gtk_object_sink (GTK_OBJECT (vadj));
1184         priv->vadj = vadj;
1185         set_vadjustment_values (self, &value_changed);
1186
1187         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1188                           self);
1189
1190         gtk_adjustment_changed (vadj);
1191         if (value_changed)
1192                 gtk_adjustment_value_changed (vadj);
1193         else
1194                 adjustment_value_changed (vadj, self);
1195
1196         g_object_notify (G_OBJECT (self), "vadjustment");
1197 }
1198
1199 static void
1200 set_shadow_type (ModestGtkhtmlMsgView *self,
1201                  GtkShadowType shadow_type)
1202 {
1203         ModestGtkhtmlMsgViewPrivate *priv;
1204         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1205
1206         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1207
1208         if (priv->shadow_type != shadow_type) {
1209                 priv->shadow_type = shadow_type;
1210
1211                 if (GTK_WIDGET_VISIBLE (self)) {
1212                         gtk_widget_size_allocate (GTK_WIDGET (self), &(GTK_WIDGET (self)->allocation));
1213                         gtk_widget_queue_draw (GTK_WIDGET (self));
1214                 }
1215                 g_object_notify (G_OBJECT (self), "shadow-type");
1216         }
1217 }
1218
1219 static GtkShadowType
1220 get_shadow_type (ModestGtkhtmlMsgView *self)
1221 {
1222         ModestGtkhtmlMsgViewPrivate *priv;
1223         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), GTK_SHADOW_NONE);
1224         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1225
1226         return priv->shadow_type;
1227 }
1228
1229 GtkWidget*
1230 modest_msg_view_new (TnyMsg *msg)
1231 {
1232         GObject *obj;
1233         ModestGtkhtmlMsgView* self;
1234
1235         obj  = G_OBJECT(g_object_new(MODEST_TYPE_GTKHTML_MSG_VIEW, NULL));
1236         self = MODEST_GTKHTML_MSG_VIEW(obj);
1237         tny_msg_view_set_msg (TNY_MSG_VIEW (self), msg);
1238
1239         return GTK_WIDGET(self);
1240 }
1241
1242 #ifdef MAEMO_CHANGES
1243 static void
1244 on_tap_and_hold (GtkWidget *widget,
1245                  gpointer data)
1246 {
1247         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1248         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1249
1250         g_signal_emit_by_name (G_OBJECT (self), "link-contextual", priv->last_url);
1251 }
1252 #endif
1253
1254 static void
1255 on_recpt_activated (ModestMailHeaderView *header_view,
1256                     const gchar *address,
1257                     ModestGtkhtmlMsgView *self)
1258 {
1259         g_signal_emit_by_name (G_OBJECT (self), "recpt-activated", address);
1260 }
1261
1262 static void
1263 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer self)
1264 {
1265
1266         g_signal_emit_by_name (G_OBJECT(self), "attachment_clicked", mime_part);
1267 }
1268
1269 static gboolean
1270 on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1271 {
1272         gboolean result;
1273         g_return_val_if_fail (self, FALSE);
1274
1275         g_signal_emit_by_name (G_OBJECT(self), "activate-link", uri, &result);
1276
1277         return result;
1278 }
1279
1280
1281 static gboolean
1282 on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1283 {
1284         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1285         gboolean result;
1286
1287         g_free (priv->last_url);
1288         priv->last_url = g_strdup (uri);
1289
1290         g_signal_emit_by_name (G_OBJECT(self), "link-hover", uri, &result);
1291
1292         return result;
1293 }
1294
1295
1296
1297 static TnyMimePart *
1298 find_cid_image (TnyMsg *msg, const gchar *cid)
1299 {
1300         TnyMimePart *part = NULL;
1301         TnyList *parts;
1302         TnyIterator *iter;
1303
1304         g_return_val_if_fail (msg, NULL);
1305         g_return_val_if_fail (cid, NULL);
1306
1307         parts  = TNY_LIST (tny_simple_list_new());
1308
1309         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1310         iter   = tny_list_create_iterator (parts);
1311
1312         while (!tny_iterator_is_done(iter)) {
1313                 const gchar *part_cid;
1314
1315                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1316                 part_cid = tny_mime_part_get_content_id (part);
1317
1318                 if (part_cid && strcmp (cid, part_cid) == 0)
1319                         break;
1320
1321                 if (tny_mime_part_content_type_is (part, "multipart/related")) {
1322                         TnyList *related_parts = TNY_LIST (tny_simple_list_new ());
1323                         TnyIterator *related_iter = NULL;
1324                         TnyMimePart *related_part = NULL;
1325
1326                         tny_mime_part_get_parts (part, related_parts);
1327                         related_iter = tny_list_create_iterator (related_parts);
1328
1329                         while (!tny_iterator_is_done (related_iter)) {
1330                                 related_part = TNY_MIME_PART (tny_iterator_get_current (related_iter));
1331                                 part_cid = tny_mime_part_get_content_id (related_part);
1332                                 if (part_cid && strcmp (cid, part_cid) == 0) {
1333                                         break;
1334                                 }
1335                                 g_object_unref (related_part);
1336                                 related_part = NULL;
1337                                 tny_iterator_next (related_iter);
1338                         }
1339
1340                         g_object_unref (related_iter);
1341                         g_object_unref (related_parts);
1342                         if (related_part != NULL) {
1343                                 g_object_unref (part);
1344                                 part = related_part;
1345                                 break;
1346                         }
1347                 }
1348
1349                 g_object_unref (G_OBJECT(part));
1350
1351                 part = NULL;
1352                 tny_iterator_next (iter);
1353         }
1354
1355         g_object_unref (G_OBJECT(iter));
1356         g_object_unref (G_OBJECT(parts));
1357
1358         return part;
1359 }
1360
1361
1362 static gboolean
1363 on_fetch_url (GtkWidget *widget, const gchar *uri,
1364               TnyStream *stream, ModestGtkhtmlMsgView *self)
1365 {
1366         ModestGtkhtmlMsgViewPrivate *priv;
1367         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1368         gboolean result = FALSE;
1369
1370         if (g_str_has_prefix (uri, "cid:")) {
1371                 /* +4 ==> skip "cid:" */
1372                 TnyMimePart *part = find_cid_image (priv->msg, uri + 4);
1373                 if (!part) {
1374                         g_printerr ("modest: '%s' not found\n", uri + 4);
1375                         result = FALSE;
1376                 } else {
1377                         tny_mime_part_decode_to_stream ((TnyMimePart*)part,
1378                                                         stream);
1379                         g_object_unref (G_OBJECT(part));
1380                         result = TRUE;
1381                 }
1382         } else {
1383                 return TRUE;
1384         }
1385
1386         return result;
1387 }
1388
1389 static void
1390 set_message (ModestGtkhtmlMsgView *self, TnyMsg *msg)
1391 {
1392         TnyMimePart *body;
1393         ModestGtkhtmlMsgViewPrivate *priv;
1394         TnyHeader *header;
1395         GtkAdjustment *html_vadj;
1396
1397         g_return_if_fail (self);
1398
1399         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1400         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1401
1402         if (msg != priv->msg) {
1403                 if (priv->msg)
1404                         g_object_unref (G_OBJECT(priv->msg));
1405                 if (msg)
1406                         g_object_ref   (G_OBJECT(msg));
1407                 priv->msg = msg;
1408         }
1409
1410         if (!msg) {
1411                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1412                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1413                 gtk_widget_hide_all (priv->mail_header_view);
1414                 gtk_widget_hide_all (priv->attachments_box);
1415                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1416                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1417                 gtk_widget_queue_resize (GTK_WIDGET(self));
1418                 gtk_widget_queue_draw (GTK_WIDGET(self));
1419                 return;
1420         }
1421
1422         header = tny_msg_get_header (msg);
1423         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1424         g_object_unref (header);
1425
1426         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1427                                              msg);
1428
1429         body = modest_tny_msg_find_body_part (msg, TRUE);
1430         if (body) {
1431                 tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), body);
1432
1433                 if(modest_attachments_view_has_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view))) {
1434                         gtk_widget_show_all (priv->attachments_box);
1435                 } else {
1436                         gtk_widget_hide_all (priv->attachments_box);
1437                 }
1438
1439         } else
1440                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1441
1442         gtk_widget_show (priv->body_view);
1443         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1444         gtk_widget_show_all (priv->mail_header_view);
1445         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1446         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1447         gtk_widget_queue_resize (GTK_WIDGET(self));
1448         gtk_widget_queue_draw (GTK_WIDGET(self));
1449
1450         if (priv->hadj != NULL)
1451                 priv->hadj->value = 0.0;
1452         if (priv->vadj != NULL)
1453                 priv->vadj->value = 0.0;
1454
1455         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1456
1457         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1458
1459         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1460          * makes the html view get the proper and expected size and prevent being able to scroll
1461          * the buffer when it shouldn't be scrollable */
1462         g_object_ref (self);
1463         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1464 }
1465
1466
1467 static TnyMsg*
1468 get_message (ModestGtkhtmlMsgView *self)
1469 {
1470         TnyMsg *msg;
1471
1472         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1473
1474         msg = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self)->msg;
1475
1476         if (msg)
1477                 g_object_ref (msg);
1478
1479         return msg;
1480 }
1481
1482 static gboolean
1483 is_empty (ModestGtkhtmlMsgView *self)
1484 {
1485         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1486
1487         return modest_mime_part_view_is_empty (MODEST_MIME_PART_VIEW (priv->body_view));
1488 }
1489
1490 static void
1491 set_zoom (ModestGtkhtmlMsgView *self, gdouble zoom)
1492 {
1493         ModestGtkhtmlMsgViewPrivate *priv;
1494
1495         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1496         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1497
1498         modest_zoomable_set_zoom (MODEST_ZOOMABLE(priv->body_view), zoom);
1499
1500         gtk_widget_queue_resize (priv->body_view);
1501 }
1502
1503 static gdouble
1504 get_zoom (ModestGtkhtmlMsgView *self)
1505 {
1506         ModestGtkhtmlMsgViewPrivate *priv;
1507
1508         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 1.0);
1509         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1510
1511         return modest_zoomable_get_zoom (MODEST_ZOOMABLE (priv->body_view));
1512 }
1513
1514 static TnyHeaderFlags
1515 get_priority (ModestGtkhtmlMsgView *self)
1516 {
1517         ModestGtkhtmlMsgViewPrivate *priv;
1518
1519         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 0);
1520
1521         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1522
1523         return modest_mail_header_view_get_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view));
1524 }
1525
1526 static void
1527 set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags)
1528 {
1529         ModestGtkhtmlMsgViewPrivate *priv;
1530
1531         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1532         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1533
1534         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1535 }
1536
1537 /* INCREMENTAL SEARCH IMPLEMENTATION */
1538
1539 static gboolean
1540 search (ModestGtkhtmlMsgView *self, const gchar *search)
1541 {
1542         ModestGtkhtmlMsgViewPrivate *priv;
1543         gboolean result;
1544         GtkAdjustment *vadj, *tmp_vadj;
1545         gdouble y_offset;
1546
1547         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1548
1549         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1550         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->body_view));
1551         g_object_ref (vadj);
1552         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1553         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), tmp_vadj);
1554         result = modest_isearch_view_search (MODEST_ISEARCH_VIEW (priv->body_view),
1555                                              search);
1556
1557         if (result) {
1558                 gint x, y, w, h;
1559                 gdouble offset_top, offset_bottom;
1560                 GtkAdjustment *adj;
1561                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1562                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1563                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1564                         adj = GTK_ADJUSTMENT (priv->vadj);
1565                         if (offset_top < adj->value)
1566                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1567                         else if (offset_bottom > adj->value + adj->page_increment)
1568                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1569                 }
1570         }
1571
1572         y_offset = tmp_vadj->value;
1573         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), vadj);
1574         g_object_unref (vadj);
1575
1576         return result;
1577 }
1578
1579 static gboolean
1580 search_next (ModestGtkhtmlMsgView *self)
1581 {
1582         ModestGtkhtmlMsgViewPrivate *priv;
1583         gboolean result;
1584
1585         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1586
1587         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1588         result = modest_isearch_view_search_next (MODEST_ISEARCH_VIEW (priv->body_view));
1589
1590         if (result) {
1591                 gint x, y, w, h;
1592                 gdouble offset_top, offset_bottom;
1593                 GtkAdjustment *adj;
1594
1595                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1596                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1597                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1598                         adj = GTK_ADJUSTMENT (priv->vadj);
1599                         if (offset_top < adj->value)
1600                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1601                         else if (offset_bottom > adj->value + adj->page_increment)
1602                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1603                 }
1604         }
1605         return result;
1606 }
1607
1608 static GList *
1609 get_selected_attachments (ModestGtkhtmlMsgView *self)
1610 {
1611         ModestGtkhtmlMsgViewPrivate *priv;
1612
1613         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1614         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1615
1616         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1617
1618 }
1619
1620 static GList *
1621 get_attachments (ModestGtkhtmlMsgView *self)
1622 {
1623         ModestGtkhtmlMsgViewPrivate *priv;
1624
1625         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1626         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1627
1628         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1629
1630 }
1631
1632 static void
1633 grab_focus (ModestGtkhtmlMsgView *self)
1634 {
1635         ModestGtkhtmlMsgViewPrivate *priv = NULL;
1636
1637         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1638         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1639
1640         gtk_widget_grab_focus (priv->body_view);
1641 }
1642
1643 static void
1644 remove_attachment (ModestGtkhtmlMsgView *self, TnyMimePart *attachment)
1645 {
1646         ModestGtkhtmlMsgViewPrivate *priv;
1647
1648         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1649         g_return_if_fail (TNY_IS_MIME_PART (attachment));
1650         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1651
1652         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1653                                                    attachment);
1654
1655 }
1656
1657 /* TNY MSG IMPLEMENTATION */
1658
1659 static void
1660 tny_msg_view_init (gpointer g, gpointer iface_data)
1661 {
1662         TnyMsgViewIface *klass = (TnyMsgViewIface *)g;
1663
1664         klass->get_msg_func = modest_msg_view_get_msg;
1665         klass->set_msg_func = modest_msg_view_set_msg;
1666         klass->set_unavailable_func = modest_msg_view_set_unavailable;
1667         klass->clear_func = modest_msg_view_clear;
1668         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for;
1669         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer;
1670
1671         return;
1672 }
1673
1674 static TnyMsg *
1675 modest_msg_view_get_msg (TnyMsgView *self)
1676 {
1677         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_msg_func (self);
1678 }
1679
1680 static TnyMsg *
1681 modest_msg_view_get_msg_default (TnyMsgView *self)
1682 {
1683         return TNY_MSG (tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (self)));
1684 }
1685
1686 static void
1687 modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg)
1688 {
1689         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_func (self, msg);
1690 }
1691
1692 static void
1693 modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg)
1694 {
1695
1696         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (self), TNY_MIME_PART (msg));
1697
1698         return;
1699 }
1700
1701 static void
1702 modest_msg_view_set_unavailable (TnyMsgView *self)
1703 {
1704         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_unavailable_func (self);
1705 }
1706
1707 static void
1708 modest_msg_view_set_unavailable_default (TnyMsgView *self)
1709 {
1710         tny_msg_view_clear (self);
1711
1712         return;
1713 }
1714
1715 static void
1716 modest_msg_view_clear (TnyMsgView *self)
1717 {
1718         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_func (self);
1719 }
1720
1721 static void
1722 modest_msg_view_clear_default (TnyMsgView *self)
1723 {
1724         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL);
1725 }
1726
1727 static TnyMimePartView*
1728 modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part)
1729 {
1730         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_mime_part_view_for_func (self, part);
1731 }
1732
1733 static TnyMimePartView*
1734 modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part)
1735 {
1736         g_warning ("modest_msg_view_create_mime_part_view_for_default is not implemented");
1737         return NULL;
1738 }
1739
1740 static TnyMsgView*
1741 modest_msg_view_create_new_inline_viewer (TnyMsgView *self)
1742 {
1743         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_new_inline_viewer_func (self);
1744 }
1745
1746 static TnyMsgView*
1747 modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self)
1748 {
1749         g_warning ("modest_msg_view_create_new_inline_viewer_default is not implemented");
1750
1751         return NULL;
1752 }
1753
1754 /* TNY MIME PART IMPLEMENTATION */
1755
1756 static void
1757 tny_mime_part_view_init (gpointer g, gpointer iface_data)
1758 {
1759         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
1760
1761         klass->get_part_func = modest_msg_view_mp_get_part;
1762         klass->set_part_func = modest_msg_view_mp_set_part;
1763         klass->clear_func = modest_msg_view_mp_clear;
1764
1765         return;
1766 }
1767
1768 static TnyMimePart*
1769 modest_msg_view_mp_get_part (TnyMimePartView *self)
1770 {
1771         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_part_func (self);
1772 }
1773
1774
1775 static TnyMimePart*
1776 modest_msg_view_mp_get_part_default (TnyMimePartView *self)
1777 {
1778         return TNY_MIME_PART (get_message (MODEST_GTKHTML_MSG_VIEW (self)));
1779 }
1780
1781 static void
1782 modest_msg_view_mp_set_part (TnyMimePartView *self,
1783                              TnyMimePart *part)
1784 {
1785         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_part_func (self, part);
1786 }
1787
1788 static void
1789 modest_msg_view_mp_set_part_default (TnyMimePartView *self,
1790                                      TnyMimePart *part)
1791 {
1792         g_return_if_fail ((part == NULL) || TNY_IS_MSG (part));
1793
1794         set_message (MODEST_GTKHTML_MSG_VIEW (self), TNY_MSG (part));
1795 }
1796
1797 static void
1798 modest_msg_view_mp_clear (TnyMimePartView *self)
1799 {
1800         tny_msg_view_clear (TNY_MSG_VIEW (self));
1801 }
1802
1803 /* MODEST MIME PART VIEW IMPLEMENTATION */
1804
1805 static void
1806 modest_mime_part_view_init (gpointer g, gpointer iface_data)
1807 {
1808         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
1809
1810         klass->is_empty_func = modest_msg_view_mp_is_empty;
1811
1812         return;
1813 }
1814
1815 static gboolean
1816 modest_msg_view_mp_is_empty (ModestMimePartView *self)
1817 {
1818         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->is_empty_func (self);
1819 }
1820
1821 static gboolean
1822 modest_msg_view_mp_is_empty_default (ModestMimePartView *self)
1823 {
1824         return is_empty (MODEST_GTKHTML_MSG_VIEW (self));
1825 }
1826
1827 /* MODEST ZOOMABLE IMPLEMENTATION */
1828 static void
1829 modest_zoomable_init (gpointer g, gpointer iface_data)
1830 {
1831         ModestZoomableIface *klass = (ModestZoomableIface *)g;
1832
1833         klass->get_zoom_func = modest_msg_view_get_zoom;
1834         klass->set_zoom_func = modest_msg_view_set_zoom;
1835         klass->zoom_minus_func = modest_msg_view_zoom_minus;
1836         klass->zoom_plus_func = modest_msg_view_zoom_plus;
1837
1838         return;
1839 }
1840
1841 static gdouble
1842 modest_msg_view_get_zoom (ModestZoomable *self)
1843 {
1844         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_zoom_func (self);
1845 }
1846
1847 static gdouble
1848 modest_msg_view_get_zoom_default (ModestZoomable *self)
1849 {
1850         return get_zoom (MODEST_GTKHTML_MSG_VIEW (self));
1851 }
1852
1853 static void
1854 modest_msg_view_set_zoom (ModestZoomable *self, gdouble value)
1855 {
1856         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
1857 }
1858
1859 static void
1860 modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value)
1861 {
1862         set_zoom (MODEST_GTKHTML_MSG_VIEW (self), value);
1863 }
1864
1865 static gboolean
1866 modest_msg_view_zoom_minus (ModestZoomable *self)
1867 {
1868         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_minus_func (self);
1869 }
1870
1871 static gboolean
1872 modest_msg_view_zoom_minus_default (ModestZoomable *self)
1873 {
1874         /* operation not supported in ModestMsgView */
1875         return FALSE;
1876 }
1877
1878 static gboolean
1879 modest_msg_view_zoom_plus (ModestZoomable *self)
1880 {
1881         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_plus_func (self);
1882 }
1883
1884 static gboolean
1885 modest_msg_view_zoom_plus_default (ModestZoomable *self)
1886 {
1887         /* operation not supported in ModestMsgView */
1888         return FALSE;
1889 }
1890
1891 /* MODEST ISEARCH VIEW IMPLEMENTATION */
1892 static void
1893 modest_isearch_view_init (gpointer g, gpointer iface_data)
1894 {
1895         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
1896
1897         klass->search_func = modest_msg_view_search;
1898         klass->search_next_func = modest_msg_view_search_next;
1899
1900         return;
1901 }
1902
1903 static gboolean
1904 modest_msg_view_search (ModestISearchView *self, const gchar *string)
1905 {
1906         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_func (self, string);
1907 }
1908
1909 static gboolean
1910 modest_msg_view_search_default (ModestISearchView *self, const gchar *string)
1911 {
1912         return search (MODEST_GTKHTML_MSG_VIEW (self), string);
1913 }
1914
1915 static gboolean
1916 modest_msg_view_search_next (ModestISearchView *self)
1917 {
1918         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_next_func (self);
1919 }
1920
1921 static gboolean
1922 modest_msg_view_search_next_default (ModestISearchView *self)
1923 {
1924         return search_next (MODEST_GTKHTML_MSG_VIEW (self));
1925 }
1926
1927 /* MODEST MSG VIEW IMPLEMENTATION */
1928 static void
1929 modest_msg_view_init (gpointer g, gpointer iface_data)
1930 {
1931         ModestMsgViewIface *klass = (ModestMsgViewIface *)g;
1932
1933         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment;
1934         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment;
1935         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment;
1936         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment;
1937         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type;
1938         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type;
1939         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority;
1940         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority;
1941         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments;
1942         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments;
1943         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus;
1944         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment;
1945
1946         return;
1947 }
1948
1949 static GtkAdjustment*
1950 modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self)
1951 {
1952         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_vadjustment_func (self);
1953 }
1954
1955 static GtkAdjustment*
1956 modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self)
1957 {
1958         return get_vadjustment (MODEST_GTKHTML_MSG_VIEW (self));
1959 }
1960
1961 static GtkAdjustment*
1962 modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self)
1963 {
1964         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_hadjustment_func (self);
1965 }
1966
1967 static GtkAdjustment*
1968 modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self)
1969 {
1970         return get_hadjustment (MODEST_GTKHTML_MSG_VIEW (self));
1971 }
1972
1973 static void
1974 modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *adj)
1975 {
1976         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_vadjustment_func (self, adj);
1977 }
1978
1979 static void
1980 modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
1981 {
1982         set_vadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
1983 }
1984
1985 static void
1986 modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *adj)
1987 {
1988         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_hadjustment_func (self, adj);
1989 }
1990
1991 static void
1992 modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
1993 {
1994         set_hadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
1995 }
1996
1997 static void
1998 modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type)
1999 {
2000         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_shadow_type_func (self, type);
2001 }
2002
2003 static void
2004 modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type)
2005 {
2006         set_shadow_type (MODEST_GTKHTML_MSG_VIEW (self), type);
2007 }
2008
2009 static GtkShadowType
2010 modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self)
2011 {
2012         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_shadow_type_func (self);
2013 }
2014
2015 static GtkShadowType
2016 modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self)
2017 {
2018         return get_shadow_type (MODEST_GTKHTML_MSG_VIEW (self));
2019 }
2020
2021 static void
2022 modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
2023 {
2024         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_priority_func (self, flags);
2025 }
2026
2027 static void
2028 modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags)
2029 {
2030         set_priority (MODEST_GTKHTML_MSG_VIEW (self), flags);
2031 }
2032
2033 static TnyHeaderFlags
2034 modest_gtkhtml_msg_view_get_priority (ModestMsgView *self)
2035 {
2036         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_priority_func (self);
2037 }
2038
2039 static TnyHeaderFlags
2040 modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self)
2041 {
2042         return get_priority (MODEST_GTKHTML_MSG_VIEW (self));
2043 }
2044
2045 static GList*
2046 modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self)
2047 {
2048         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_selected_attachments_func (self);
2049 }
2050
2051 static GList*
2052 modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self)
2053 {
2054         return get_selected_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2055 }
2056
2057 static GList*
2058 modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self)
2059 {
2060         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_attachments_func (self);
2061 }
2062
2063 static GList*
2064 modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self)
2065 {
2066         return get_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2067 }
2068
2069 static void
2070 modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self)
2071 {
2072         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->grab_focus_func (self);
2073 }
2074
2075 static void
2076 modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self)
2077 {
2078         grab_focus (MODEST_GTKHTML_MSG_VIEW (self));
2079 }
2080
2081 static void
2082 modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *self, TnyMimePart *attachment)
2083 {
2084         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->remove_attachment_func (self, attachment);
2085 }
2086
2087 static void
2088 modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *self, TnyMimePart *attachment)
2089 {
2090         remove_attachment (MODEST_GTKHTML_MSG_VIEW (self), attachment);
2091 }
2092