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         TnyHeaderFlags priority_flags;
 222 };
 223
 224 #define MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 225                                                                                  MODEST_TYPE_GTKHTML_MSG_VIEW, \
 226                                                                                  ModestGtkhtmlMsgViewPrivate))
 227
 228 /* globals */
 229 static GtkContainerClass *parent_class = NULL;
 230
 231 GType
 232 modest_gtkhtml_msg_view_get_type (void)
 233 {
 234         static GType my_type = 0;
 235         if (!my_type) {
 236                 static const GTypeInfo my_info = {
 237                         sizeof(ModestGtkhtmlMsgViewClass),
 238                         NULL,           /* base init */
 239                         NULL,           /* base finalize */
 240                         (GClassInitFunc) modest_gtkhtml_msg_view_class_init,
 241                         NULL,           /* class finalize */
 242                         NULL,           /* class data */
 243                         sizeof(ModestGtkhtmlMsgView),
 244                         1,              /* n_preallocs */
 245                         (GInstanceInitFunc) modest_gtkhtml_msg_view_init,
 246                         NULL
 247                 };
 248                 static const GInterfaceInfo tny_msg_view_info =
 249                 {
 250                   (GInterfaceInitFunc) tny_msg_view_init, /* interface_init */
 251                   NULL,         /* interface_finalize */
 252                   NULL          /* interface_data */
 253                 };
 254
 255                 static const GInterfaceInfo tny_mime_part_view_info =
 256                 {
 257                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 258                   NULL,         /* interface_finalize */
 259                   NULL          /* interface_data */
 260                 };
 261
 262                 static const GInterfaceInfo modest_mime_part_view_info =
 263                 {
 264                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 265                   NULL,         /* interface_finalize */
 266                   NULL          /* interface_data */
 267                 };
 268
 269                 static const GInterfaceInfo modest_zoomable_info =
 270                 {
 271                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 272                   NULL,         /* interface_finalize */
 273                   NULL          /* interface_data */
 274                 };
 275
 276                 static const GInterfaceInfo modest_isearch_view_info =
 277                 {
 278                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 279                   NULL,         /* interface_finalize */
 280                   NULL          /* interface_data */
 281                 };
 282
 283                 static const GInterfaceInfo modest_msg_view_info =
 284                 {
 285                   (GInterfaceInitFunc) modest_msg_view_init, /* interface_init */
 286                   NULL,         /* interface_finalize */
 287                   NULL          /* interface_data */
 288                 };
 289
 290                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 291                                                   "ModestGtkhtmlMsgView",
 292                                                   &my_info, 0);
 293
 294                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 295                         &tny_mime_part_view_info);
 296
 297                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 298                         &modest_mime_part_view_info);
 299
 300                 g_type_add_interface_static (my_type, TNY_TYPE_MSG_VIEW,
 301                         &tny_msg_view_info);
 302
 303                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 304                         &modest_zoomable_info);
 305
 306                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 307                         &modest_isearch_view_info);
 308
 309                 g_type_add_interface_static (my_type, MODEST_TYPE_MSG_VIEW,
 310                         &modest_msg_view_info);
 311         }
 312         return my_type;
 313 }
 314
 315 static void
 316 modest_gtkhtml_msg_view_class_init (ModestGtkhtmlMsgViewClass *klass)
 317 {
 318         GObjectClass *gobject_class;
 319         GtkWidgetClass *widget_class;
 320         GtkObjectClass *gtkobject_class;
 321         GtkContainerClass *container_class;
 322         gobject_class = (GObjectClass*) klass;
 323         widget_class = (GtkWidgetClass *) klass;
 324         gtkobject_class = (GtkObjectClass *) klass;
 325         container_class = (GtkContainerClass *) klass;
 326
 327         parent_class            = g_type_class_peek_parent (klass);
 328         gobject_class->finalize = modest_gtkhtml_msg_view_finalize;
 329         gobject_class->set_property = set_property;
 330         gobject_class->get_property = get_property;
 331         gtkobject_class->destroy = modest_gtkhtml_msg_view_destroy;
 332
 333         widget_class->realize = realize;
 334         widget_class->unrealize = unrealize;
 335         widget_class->expose_event = expose;
 336         widget_class->size_request = size_request;
 337         widget_class->size_allocate = size_allocate;
 338
 339         container_class->forall = forall;
 340         container_class->remove = container_remove;
 341
 342         klass->set_scroll_adjustments = set_scroll_adjustments;
 343         klass->get_part_func = modest_msg_view_mp_get_part_default;
 344         klass->set_part_func = modest_msg_view_mp_set_part_default;
 345         klass->is_empty_func = modest_msg_view_mp_is_empty_default;
 346         klass->get_msg_func = modest_msg_view_get_msg_default;
 347         klass->set_msg_func = modest_msg_view_set_msg_default;
 348         klass->set_unavailable_func = modest_msg_view_set_unavailable_default;
 349         klass->clear_func = modest_msg_view_clear_default;
 350         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for_default;
 351         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer_default;
 352         klass->get_zoom_func = modest_msg_view_get_zoom_default;
 353         klass->set_zoom_func = modest_msg_view_set_zoom_default;
 354         klass->zoom_minus_func = modest_msg_view_zoom_minus_default;
 355         klass->zoom_plus_func = modest_msg_view_zoom_plus_default;
 356         klass->search_func = modest_msg_view_search_default;
 357         klass->search_next_func = modest_msg_view_search_next_default;
 358         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment_default;
 359         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment_default;
 360         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment_default;
 361         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment_default;
 362         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type_default;
 363         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type_default;
 364         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority_default;
 365         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority_default;
 366         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments_default;
 367         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments_default;
 368         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus_default;
 369         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment_default;
 370
 371         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMsgViewPrivate));
 372
 373         g_object_class_install_property (gobject_class,
 374                                          PROP_HADJUSTMENT,
 375                                          g_param_spec_object ("hadjustment",
 376                                                               _("Horizontal adjustment"),
 377                                                               _("GtkAdjustment with information of the horizontal visible position"),
 378                                                               GTK_TYPE_ADJUSTMENT,
 379                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 380
 381         g_object_class_install_property (gobject_class,
 382                                          PROP_VADJUSTMENT,
 383                                          g_param_spec_object ("vadjustment",
 384                                                               _("Vertical adjustment"),
 385                                                               _("GtkAdjustment with information of the vertical visible position"),
 386                                                               GTK_TYPE_ADJUSTMENT,
 387                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 388
 389         g_object_class_install_property (gobject_class,
 390                                          PROP_SHADOW_TYPE,
 391                                          g_param_spec_enum ("shadow_type",
 392                                                             _("Shadow type"),
 393                                                             _("Kind of shadow that's shown around the view"),
 394                                                             GTK_TYPE_SHADOW_TYPE,
 395                                                             GTK_SHADOW_IN,
 396                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 397
 398         widget_class->set_scroll_adjustments_signal =
 399                 g_signal_new ("set_scroll_adjustments",
 400                               G_OBJECT_CLASS_TYPE (gobject_class),
 401                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 402                               G_STRUCT_OFFSET (ModestGtkhtmlMsgViewClass, set_scroll_adjustments),
 403                               NULL, NULL,
 404                               modest_marshal_VOID__POINTER_POINTER,
 405                               G_TYPE_NONE, 2,
 406                               GTK_TYPE_ADJUSTMENT,
 407                               GTK_TYPE_ADJUSTMENT);
 408 }
 409
 410 static void
 411 set_property (GObject *object,
 412               guint prop_id,
 413               const GValue *value,
 414               GParamSpec *pspec)
 415 {
 416         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 417
 418         switch (prop_id) {
 419         case PROP_HADJUSTMENT:
 420                 set_hadjustment (self, g_value_get_object (value));
 421                 break;
 422         case PROP_VADJUSTMENT:
 423                 set_vadjustment (self, g_value_get_object (value));
 424                 break;
 425         case PROP_SHADOW_TYPE:
 426                 set_shadow_type (self, g_value_get_enum (value));
 427                 break;
 428         default:
 429                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 430                 break;
 431         }
 432 }
 433
 434 static void
 435 get_property (GObject *object,
 436               guint prop_id,
 437               GValue *value,
 438               GParamSpec *pspec)
 439 {
 440         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 441         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 442
 443         switch (prop_id) {
 444         case PROP_HADJUSTMENT:
 445                 g_value_set_object (value, priv->hadj);
 446                 break;
 447         case PROP_VADJUSTMENT:
 448                 g_value_set_object (value, priv->vadj);
 449                 break;
 450         case PROP_SHADOW_TYPE:
 451                 g_value_set_enum (value, priv->shadow_type);
 452                 break;
 453         default:
 454                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 455                 break;
 456         }
 457 }
 458
 459 static void
 460 disconnect_hadjustment (ModestGtkhtmlMsgView *self)
 461 {
 462         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 463
 464         if (priv->hadj) {
 465                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, self);
 466                 g_object_unref (priv->hadj);
 467                 priv->hadj = NULL;
 468         }
 469 }
 470
 471 static void
 472 disconnect_vadjustment (ModestGtkhtmlMsgView *self)
 473 {
 474         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 475
 476         if (priv->vadj) {
 477                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, self);
 478                 g_object_unref (priv->vadj);
 479                 priv->vadj = NULL;
 480         }
 481 }
 482
 483 static void
 484 get_view_allocation (ModestGtkhtmlMsgView *self, GtkAllocation *allocation)
 485 {
 486         /* This method gets the allocation of the widget in parent widget. It's the
 487            real position and size of the widget */
 488         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 489
 490         allocation->x = 0;
 491         allocation->y = 0;
 492
 493         if (priv->shadow_type != GTK_SHADOW_NONE) {
 494                 allocation->x = GTK_WIDGET (self)->style->xthickness;
 495                 allocation->y = GTK_WIDGET (self)->style->ythickness;
 496         }
 497
 498         allocation->width = MAX (1, (GTK_WIDGET (self)->allocation.width) - allocation->x * 2);
 499         allocation->height = MAX (1, (GTK_WIDGET (self)->allocation.height) - allocation->y * 2);
 500
 501 }
 502
 503 static void
 504 reclamp_adjustment (GtkAdjustment *adj,
 505                     gboolean *value_changed)
 506 {
 507         gdouble value = adj->value;
 508
 509         /* Correct value to be inside the expected values of a scroll */
 510
 511         value = CLAMP (value, 0, adj->upper - adj->page_size);
 512
 513         if (value != adj->value) {
 514                 adj->value = value;
 515                 if (value_changed)
 516                         *value_changed = TRUE;
 517         } else if (value_changed) {
 518                 *value_changed = FALSE;
 519         }
 520 }
 521
 522 static void
 523 set_hadjustment_values (ModestGtkhtmlMsgView *self,
 524                         gboolean *value_changed)
 525 {
 526         GtkAllocation view_allocation;
 527         GtkAdjustment *hadj = get_hadjustment (self);
 528
 529         get_view_allocation (self, &view_allocation);
 530         hadj->page_size = view_allocation.width;
 531         hadj->step_increment = view_allocation.width * 0.1;
 532         hadj->page_increment = view_allocation.width * 0.9;
 533
 534         hadj->lower = 0;
 535         hadj->upper = view_allocation.width;
 536
 537         reclamp_adjustment (hadj, value_changed);
 538
 539 }
 540
 541 static void
 542 set_vadjustment_values (ModestGtkhtmlMsgView *self,
 543                         gboolean *value_changed)
 544 {
 545         GtkAllocation view_allocation;
 546         GtkAdjustment *vadj = get_vadjustment (self);
 547         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 548         gint full_height = 0;
 549         GtkAdjustment *html_vadj;
 550
 551         get_view_allocation (self, &view_allocation);
 552         vadj->page_size = view_allocation.height;
 553         vadj->step_increment = view_allocation.height * 0.1;
 554         vadj->page_increment = view_allocation.height * 0.9;
 555
 556         vadj->lower = 0;
 557
 558         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 559                 GtkRequisition child_requisition;
 560
 561                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 562                 full_height = child_requisition.height;
 563         } else {
 564                 full_height = 0;
 565         }
 566
 567         /* Get the real height of the embedded html */
 568         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 569                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 570                 full_height += html_vadj->upper;
 571         }
 572
 573         vadj->upper = MAX (view_allocation.height, full_height);
 574
 575         reclamp_adjustment (vadj, value_changed);
 576
 577 }
 578
 579 static void
 580 set_scroll_adjustments (ModestGtkhtmlMsgView *self,
 581                         GtkAdjustment *hadj,
 582                         GtkAdjustment *vadj)
 583 {
 584         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 585         set_hadjustment (self, hadj);
 586         set_vadjustment (self, vadj);
 587
 588         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->body_view), vadj);
 589 }
 590
 591 static void
 592 realize (GtkWidget *widget)
 593 {
 594         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 595         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 596         GtkAdjustment *hadj = get_hadjustment (self);
 597         GtkAdjustment *vadj = get_vadjustment (self);
 598         GdkWindowAttr attributes;
 599         gint event_mask;
 600         gint attributes_mask;
 601         GtkAllocation view_allocation;
 602
 603         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 604
 605         /* The structure of the GdkWindow's is:
 606          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 607          *    * view_window: a backing store gdkwindow containing the headers and contents
 608          *      being scrolled. This window should have all the visible and non visible
 609          *      widgets inside.
 610          *    * headers_window: gdk window for headers_box.
 611          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 612          *      body view showing the contents of the mail).
 613          */
 614
 615         attributes.x = widget->allocation.x;
 616         attributes.y = widget->allocation.y;
 617         attributes.width = widget->allocation.width;
 618         attributes.height = widget->allocation.height;
 619         attributes.window_type = GDK_WINDOW_CHILD;
 620         attributes.wclass = GDK_INPUT_OUTPUT;
 621         attributes.visual = gtk_widget_get_visual (widget);
 622         attributes.colormap = gtk_widget_get_colormap (widget);
 623
 624         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 625         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 626         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 627
 628         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 629                                          &attributes, attributes_mask);
 630         gdk_window_set_user_data (widget->window, self);
 631
 632         get_view_allocation (self, &view_allocation);
 633
 634         attributes.x = view_allocation.x;
 635         attributes.y = view_allocation.y;
 636         attributes.width = view_allocation.width;
 637         attributes.height = view_allocation.height;
 638         attributes.event_mask = 0;
 639         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 640         gdk_window_set_user_data (priv->view_window, self);
 641         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 642
 643         attributes.x = -hadj->value;
 644         attributes.y = -vadj->value;
 645         attributes.width = hadj->upper;
 646         if (priv->headers_box)
 647                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 648         else
 649                 attributes.height = 1;
 650         attributes.event_mask = event_mask;
 651
 652         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 653         gdk_window_set_user_data (priv->headers_window, self);
 654
 655         if (priv->headers_box)
 656                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 657
 658         attributes.x = -hadj->value;
 659         if (priv->headers_box)
 660                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 661         else
 662                 attributes.y = -vadj->value;
 663         attributes.width = hadj->upper;
 664         if (priv->headers_box)
 665                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 666         else
 667                 attributes.height = vadj->upper;
 668         attributes.event_mask = event_mask;
 669
 670         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 671         gdk_window_set_user_data (priv->html_window, self);
 672
 673         if (priv->html_scroll)
 674                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 675
 676         widget->style = gtk_style_attach (widget->style, widget->window);
 677         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 678         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 679         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 680
 681         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 682                            GTK_SHADOW_NONE,
 683                            NULL, widget, "msgviewheaders",
 684                            0,0,-1,-1);
 685         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 686                            GTK_SHADOW_NONE,
 687                            NULL, widget, "msgviewcontents",
 688                            0,0,-1,-1);
 689
 690         gdk_window_show (priv->view_window);
 691         gdk_window_show (priv->headers_window);
 692         gdk_window_show (priv->html_window);
 693
 694 }
 695
 696 static void
 697 unrealize (GtkWidget *widget)
 698 {
 699         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 700         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 701
 702         gdk_window_set_user_data (priv->view_window, NULL);
 703         gdk_window_destroy (priv->view_window);
 704         priv->view_window = NULL;
 705
 706         gdk_window_set_user_data (priv->headers_window, NULL);
 707         gdk_window_destroy (priv->headers_window);
 708         priv->headers_window = NULL;
 709
 710         gdk_window_set_user_data (priv->html_window, NULL);
 711         gdk_window_destroy (priv->html_window);
 712         priv->html_window = NULL;
 713
 714         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 715                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 716
 717 }
 718
 719 static gint
 720 expose (GtkWidget *widget,
 721         GdkEventExpose *event)
 722 {
 723         ModestGtkhtmlMsgView *self;
 724         ModestGtkhtmlMsgViewPrivate *priv;
 725
 726         if (GTK_WIDGET_DRAWABLE (widget)) {
 727                 self = MODEST_GTKHTML_MSG_VIEW (widget);
 728                 priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 729                 if (event->window == widget->window) {
 730                         gtk_paint_shadow (widget->style, widget->window,
 731                                           GTK_STATE_NORMAL, priv->shadow_type,
 732                                           &event->area, widget, "msgview",
 733                                           0,0,-1,-1);
 734                 } else if (event->window == priv->headers_window) {
 735                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 736                                            GTK_SHADOW_NONE,
 737                                            &event->area, widget, "msgviewheaders",
 738                                            0,0,-1,-1);
 739                 } else if (event->window == priv->html_window) {
 740                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 741                                            GTK_SHADOW_NONE,
 742                                            &event->area, widget, "msgviewcontents",
 743                                            0,0,-1,-1);
 744                 }
 745                 if (priv->headers_box)
 746                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->headers_box, event);
 747                 if (priv->html_scroll)
 748                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->html_scroll, event);
 749                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 750         }
 751
 752         return FALSE;
 753 }
 754
 755 static void
 756 forall (GtkContainer *container,
 757         gboolean include_internals,
 758         GtkCallback callback,
 759         gpointer userdata)
 760 {
 761         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 762         g_return_if_fail (callback != NULL);
 763
 764         if (priv->headers_box)
 765                 (*callback) (priv->headers_box, userdata);
 766         if (priv->html_scroll)
 767                 (*callback) (priv->html_scroll, userdata);
 768 }
 769
 770 static void
 771 container_remove (GtkContainer *container,
 772                   GtkWidget *widget)
 773 {
 774         gboolean was_visible = FALSE;
 775         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 776         was_visible = GTK_WIDGET_VISIBLE (widget);
 777         if (widget == priv->headers_box) {
 778                 gtk_widget_unparent (priv->headers_box);
 779                 priv->headers_box = NULL;
 780         } else if (widget == priv->html_scroll) {
 781                 gtk_widget_unparent (priv->html_scroll);
 782                 priv->html_scroll = NULL;
 783         } else {
 784                 return;
 785         }
 786         if (was_visible)
 787                 gtk_widget_queue_resize (GTK_WIDGET(container));
 788
 789 }
 790
 791 static void
 792 size_request (GtkWidget *widget,
 793               GtkRequisition *req)
 794 {
 795         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (widget);
 796         GtkRequisition child_req;
 797
 798         req->width = 0;
 799         req->height = 0;
 800
 801         gtk_widget_size_request (priv->headers_box, &child_req);
 802         req->width = child_req.width;
 803         req->height += child_req.height;
 804         gtk_widget_size_request (priv->html_scroll, &child_req);
 805         req->width = MAX (child_req.width, req->width);
 806         req->height += child_req.height;
 807
 808 }
 809
 810 static void
 811 size_allocate (GtkWidget *widget,
 812                GtkAllocation *allocation)
 813 {
 814         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 815         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 816         gboolean hadj_value_changed, vadj_value_changed;
 817         GtkAllocation headers_allocation, html_allocation, view_allocation;
 818         GtkAdjustment *html_vadj;
 819
 820         if (GTK_WIDGET_MAPPED (widget) &&
 821             priv->shadow_type != GTK_SHADOW_NONE &&
 822             (allocation->width != widget->allocation.width ||
 823              allocation->height != widget->allocation.height))
 824                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 825
 826         widget->allocation = *allocation;
 827         set_hadjustment_values (self, &hadj_value_changed);
 828         set_vadjustment_values (self, &vadj_value_changed);
 829
 830         get_view_allocation (self, &view_allocation);
 831
 832         headers_allocation.x = 0;
 833         headers_allocation.y = 0;
 834         headers_allocation.width = view_allocation.width;
 835         if (priv->headers_box)
 836                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 837         else
 838                 headers_allocation.height = 0;
 839
 840         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 841
 842         html_allocation.x = 0;
 843         html_allocation.y = headers_allocation.height;
 844         html_allocation.width = view_allocation.width;
 845         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 846
 847         if (GTK_WIDGET_REALIZED (widget)) {
 848                 gdk_window_move_resize (widget->window,
 849                                         allocation->x,
 850                                         allocation->y,
 851                                         allocation->width,
 852                                         allocation->height);
 853
 854                 gdk_window_move_resize (priv->view_window,
 855                                         view_allocation.x,
 856                                         view_allocation.y,
 857                                         view_allocation.width,
 858                                         view_allocation.height);
 859                 gdk_window_move_resize (priv->headers_window,
 860                                         0,
 861                                         (gint) (- priv->vadj->value),
 862                                         allocation->width,
 863                                         headers_allocation.height);
 864                 gdk_window_move_resize (priv->html_window,
 865                                         (gint) (- priv->hadj->value),
 866                                         (gint) (html_allocation.y - priv->vadj->value),
 867                                         (gint) priv->hadj->upper,
 868                                         html_allocation.height);
 869         }
 870
 871         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 872                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 873         }
 874         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 875                 html_allocation.x = 0;
 876                 html_allocation.y = 0;
 877                 html_allocation.width = (gint) priv->hadj->upper;
 878                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 879                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 880         }
 881         gtk_adjustment_changed (priv->hadj);
 882         gtk_adjustment_changed (priv->vadj);
 883
 884         if (hadj_value_changed)
 885                 gtk_adjustment_value_changed (priv->hadj);
 886         if (vadj_value_changed)
 887                 gtk_adjustment_value_changed (priv->vadj);
 888
 889 }
 890
 891 static void
 892 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 893 {
 894         ModestGtkhtmlMsgView *self = NULL;
 895         ModestGtkhtmlMsgViewPrivate *priv = NULL;
 896
 897         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 898         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (data));
 899
 900         self = MODEST_GTKHTML_MSG_VIEW (data);
 901         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 902
 903         if (GTK_WIDGET_REALIZED (self)) {
 904                 GtkAdjustment *hadj = get_hadjustment (self);
 905                 GtkAdjustment *vadj = get_vadjustment (self);
 906                 gint headers_offset = 0;
 907
 908                 gtk_widget_queue_resize (priv->html_scroll);
 909
 910                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 911                         gint old_x, old_y;
 912                         gint new_x, new_y;
 913                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 914                         new_x = 0;
 915                         new_y = -vadj->value;
 916
 917                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 918
 919                         if (new_x != old_x || new_y != old_y) {
 920                                 gdk_window_move (priv->headers_window, new_x, new_y);
 921                                 gdk_window_process_updates (priv->headers_window, TRUE);
 922                         }
 923                 }
 924
 925                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 926                         gint old_x, old_y;
 927                         gint new_x, new_y;
 928                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 929                         new_x = -hadj->value;
 930                         new_y = headers_offset - vadj->value;
 931
 932                         if (new_x != old_x || new_y != old_y) {
 933                                 gdk_window_move (priv->html_window, new_x, new_y);
 934                                 gdk_window_process_updates (priv->html_window, TRUE);
 935                         }
 936                 }
 937
 938         }
 939 }
 940
 941 static void
 942 html_adjustment_changed (GtkAdjustment *adj,
 943                          gpointer userdata)
 944 {
 945         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (userdata);
 946         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 947         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
 948         gboolean vadj_changed;
 949         gint new_height;
 950
 951         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
 952
 953         priv->html_scroll->requisition.height = html_vadj->upper;
 954         if (html_vadj->upper == priv->html_scroll->allocation.height)
 955                 return;
 956         priv->html_scroll->allocation.height = html_vadj->upper;
 957
 958         set_vadjustment_values (self, &vadj_changed);
 959
 960         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
 961
 962         gtk_adjustment_changed (priv->vadj);
 963         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
 964                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
 965                 gdk_window_process_updates (priv->view_window, TRUE);
 966                 gtk_container_resize_children (GTK_CONTAINER (self));
 967         }
 968
 969 }
 970
 971 gboolean
 972 idle_readjust_scroll (ModestGtkhtmlMsgView *self)
 973 {
 974         if (GTK_WIDGET_DRAWABLE (self)) {
 975                 ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 976                 GtkAdjustment *html_vadj;
 977                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 978                 html_vadj->page_size = html_vadj->upper;
 979                 gtk_adjustment_changed (html_vadj);
 980                 gtk_widget_queue_resize (GTK_WIDGET (self));
 981                 gtk_widget_queue_draw (GTK_WIDGET (self));
 982
 983                 /* Just another hack for making readjust really work. This forces an update
 984                  * of the scroll, and then, make the scroll really update properly the
 985                  * the size and not corrupt scrollable area */
 986                 gtk_adjustment_set_value (priv->vadj, 1.0);
 987                 gtk_adjustment_set_value (priv->vadj, 0.0);
 988         }
 989         g_object_unref (G_OBJECT (self));
 990         return FALSE;
 991 }
 992
 993 static void
 994 modest_gtkhtml_msg_view_init (ModestGtkhtmlMsgView *obj)
 995 {
 996         ModestGtkhtmlMsgViewPrivate *priv;
 997         GtkAdjustment *html_vadj;
 998         GtkWidget *separator;
 999
1000         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
1001         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
1002         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
1003         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
1004
1005         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(obj);
1006
1007         priv->current_zoom = 1.0;
1008         priv->priority_flags = 0;
1009
1010         priv->hadj = NULL;
1011         priv->vadj = NULL;
1012         priv->shadow_type = GTK_SHADOW_IN;
1013         priv->view_window = NULL;
1014         priv->headers_window = NULL;
1015         priv->html_window = NULL;
1016
1017         gtk_widget_push_composite_child ();
1018         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
1019         gtk_widget_set_composite_name (priv->html_scroll, "contents");
1020         gtk_widget_pop_composite_child ();
1021         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1022
1023         priv->msg                     = NULL;
1024
1025         priv->body_view                 = GTK_WIDGET (g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL));
1026         priv->mail_header_view        = GTK_WIDGET(modest_mail_header_view_new (TRUE));
1027         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1028
1029         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
1030
1031         g_signal_connect (G_OBJECT(priv->body_view), "activate_link",
1032                                        G_CALLBACK(on_activate_link), obj);
1033         g_signal_connect (G_OBJECT(priv->body_view), "fetch_url",
1034                                        G_CALLBACK(on_fetch_url), obj);
1035         g_signal_connect (G_OBJECT(priv->body_view), "link_hover",
1036                                        G_CALLBACK(on_link_hover), obj);
1037
1038         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
1039                           G_CALLBACK (on_recpt_activated), obj);
1040
1041         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
1042                           G_CALLBACK (on_attachment_activated), obj);
1043
1044         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1045
1046         g_signal_connect (G_OBJECT (html_vadj), "changed",
1047                           G_CALLBACK (html_adjustment_changed), obj);
1048
1049         gtk_widget_push_composite_child ();
1050         priv->headers_box = gtk_vbox_new (0, FALSE);
1051         gtk_widget_set_composite_name (priv->headers_box, "headers");
1052         gtk_widget_pop_composite_child ();
1053
1054         if (priv->mail_header_view)
1055                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1056
1057         if (priv->attachments_view) {
1058                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1059
1060                 priv->attachments_box = (GtkWidget *)
1061                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1062                                                                    att_label,
1063                                                                    priv->attachments_view,
1064                                                                    FALSE, FALSE);
1065                 gtk_widget_hide_all (priv->attachments_box);
1066                 g_free (att_label);
1067         }
1068
1069         separator = gtk_hseparator_new ();
1070         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1071
1072         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (obj));
1073
1074         if (priv->body_view) {
1075                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->body_view);
1076                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(obj));
1077 #ifdef MAEMO_CHANGES
1078                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->body_view), NULL, NULL, 0);
1079                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1080 #endif
1081         }
1082
1083 }
1084
1085
1086 static void
1087 modest_gtkhtml_msg_view_finalize (GObject *obj)
1088 {
1089         ModestGtkhtmlMsgViewPrivate *priv;
1090         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (obj);
1091
1092         if (priv->msg) {
1093                 g_object_unref (G_OBJECT(priv->msg));
1094                 priv->msg = NULL;
1095         }
1096
1097         /* we cannot disconnect sigs, because priv->body_view is
1098          * already dead */
1099
1100         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1101         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1102
1103         priv->body_view = NULL;
1104         priv->attachments_view = NULL;
1105
1106         G_OBJECT_CLASS(parent_class)->finalize (obj);
1107 }
1108
1109 static void
1110 modest_gtkhtml_msg_view_destroy (GtkObject *obj)
1111 {
1112         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1113         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1114
1115         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
1116 }
1117
1118 /* INTERNAL METHODS */
1119
1120 static GtkAdjustment *
1121 get_vadjustment (ModestGtkhtmlMsgView *self)
1122 {
1123         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1124
1125         if (!priv->vadj)
1126                 set_vadjustment (self, NULL);
1127
1128         return priv->vadj;
1129
1130 }
1131
1132 static GtkAdjustment *
1133 get_hadjustment (ModestGtkhtmlMsgView *self)
1134 {
1135         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1136
1137         if (!priv->hadj)
1138                 set_hadjustment (self, NULL);
1139
1140         return priv->hadj;
1141
1142 }
1143
1144 static void
1145 set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj)
1146 {
1147         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1148         gboolean value_changed;
1149
1150         if (hadj && hadj == priv->hadj)
1151                 return;
1152
1153         if (!hadj)
1154                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
1155         disconnect_hadjustment (self);
1156         g_object_ref (G_OBJECT (hadj));
1157         gtk_object_sink (GTK_OBJECT (hadj));
1158         priv->hadj = hadj;
1159         set_hadjustment_values (self, &value_changed);
1160
1161         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1162                           self);
1163
1164         gtk_adjustment_changed (hadj);
1165         if (value_changed)
1166                 gtk_adjustment_value_changed (hadj);
1167         else
1168                 adjustment_value_changed (hadj, self);
1169
1170         g_object_notify (G_OBJECT (self), "hadjustment");
1171 }
1172
1173 static void
1174 set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj)
1175 {
1176         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1177         gboolean value_changed;
1178
1179         if (vadj && vadj == priv->vadj)
1180                 return;
1181
1182         if (!vadj)
1183                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1184         disconnect_vadjustment (self);
1185         g_object_ref (G_OBJECT (vadj));
1186         gtk_object_sink (GTK_OBJECT (vadj));
1187         priv->vadj = vadj;
1188         set_vadjustment_values (self, &value_changed);
1189
1190         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1191                           self);
1192
1193         gtk_adjustment_changed (vadj);
1194         if (value_changed)
1195                 gtk_adjustment_value_changed (vadj);
1196         else
1197                 adjustment_value_changed (vadj, self);
1198
1199         g_object_notify (G_OBJECT (self), "vadjustment");
1200 }
1201
1202 static void
1203 set_shadow_type (ModestGtkhtmlMsgView *self,
1204                  GtkShadowType shadow_type)
1205 {
1206         ModestGtkhtmlMsgViewPrivate *priv;
1207         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1208
1209         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1210
1211         if (priv->shadow_type != shadow_type) {
1212                 priv->shadow_type = shadow_type;
1213
1214                 if (GTK_WIDGET_VISIBLE (self)) {
1215                         gtk_widget_size_allocate (GTK_WIDGET (self), &(GTK_WIDGET (self)->allocation));
1216                         gtk_widget_queue_draw (GTK_WIDGET (self));
1217                 }
1218                 g_object_notify (G_OBJECT (self), "shadow-type");
1219         }
1220 }
1221
1222 static GtkShadowType
1223 get_shadow_type (ModestGtkhtmlMsgView *self)
1224 {
1225         ModestGtkhtmlMsgViewPrivate *priv;
1226         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), GTK_SHADOW_NONE);
1227         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1228
1229         return priv->shadow_type;
1230 }
1231
1232 GtkWidget*
1233 modest_msg_view_new (TnyMsg *msg)
1234 {
1235         GObject *obj;
1236         ModestGtkhtmlMsgView* self;
1237
1238         obj  = G_OBJECT(g_object_new(MODEST_TYPE_GTKHTML_MSG_VIEW, NULL));
1239         self = MODEST_GTKHTML_MSG_VIEW(obj);
1240         tny_msg_view_set_msg (TNY_MSG_VIEW (self), msg);
1241
1242         return GTK_WIDGET(self);
1243 }
1244
1245 #ifdef MAEMO_CHANGES
1246 static void
1247 on_tap_and_hold (GtkWidget *widget,
1248                  gpointer data)
1249 {
1250         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1251         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1252
1253         g_signal_emit_by_name (G_OBJECT (self), "link-contextual", priv->last_url);
1254 }
1255 #endif
1256
1257 static void
1258 on_recpt_activated (ModestMailHeaderView *header_view,
1259                     const gchar *address,
1260                     ModestGtkhtmlMsgView *self)
1261 {
1262         g_signal_emit_by_name (G_OBJECT (self), "recpt-activated", address);
1263 }
1264
1265 static void
1266 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer self)
1267 {
1268
1269         g_signal_emit_by_name (G_OBJECT(self), "attachment_clicked", mime_part);
1270 }
1271
1272 static gboolean
1273 on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1274 {
1275         gboolean result;
1276         g_return_val_if_fail (self, FALSE);
1277
1278         g_signal_emit_by_name (G_OBJECT(self), "activate-link", uri, &result);
1279
1280         return result;
1281 }
1282
1283
1284 static gboolean
1285 on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1286 {
1287         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1288         gboolean result;
1289
1290         g_free (priv->last_url);
1291         priv->last_url = g_strdup (uri);
1292
1293         g_signal_emit_by_name (G_OBJECT(self), "link-hover", uri, &result);
1294
1295         return result;
1296 }
1297
1298
1299
1300 static TnyMimePart *
1301 find_cid_image (TnyMsg *msg, const gchar *cid)
1302 {
1303         TnyMimePart *part = NULL;
1304         TnyList *parts;
1305         TnyIterator *iter;
1306
1307         g_return_val_if_fail (msg, NULL);
1308         g_return_val_if_fail (cid, NULL);
1309
1310         parts  = TNY_LIST (tny_simple_list_new());
1311
1312         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1313         iter   = tny_list_create_iterator (parts);
1314
1315         while (!tny_iterator_is_done(iter)) {
1316                 const gchar *part_cid;
1317
1318                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1319                 part_cid = tny_mime_part_get_content_id (part);
1320
1321                 if (part_cid && strcmp (cid, part_cid) == 0)
1322                         break;
1323
1324                 if (tny_mime_part_content_type_is (part, "multipart/related")) {
1325                         TnyList *related_parts = TNY_LIST (tny_simple_list_new ());
1326                         TnyIterator *related_iter = NULL;
1327                         TnyMimePart *related_part = NULL;
1328
1329                         tny_mime_part_get_parts (part, related_parts);
1330                         related_iter = tny_list_create_iterator (related_parts);
1331
1332                         while (!tny_iterator_is_done (related_iter)) {
1333                                 related_part = TNY_MIME_PART (tny_iterator_get_current (related_iter));
1334                                 part_cid = tny_mime_part_get_content_id (related_part);
1335                                 if (part_cid && strcmp (cid, part_cid) == 0) {
1336                                         break;
1337                                 }
1338                                 g_object_unref (related_part);
1339                                 related_part = NULL;
1340                                 tny_iterator_next (related_iter);
1341                         }
1342
1343                         g_object_unref (related_iter);
1344                         g_object_unref (related_parts);
1345                         if (related_part != NULL) {
1346                                 g_object_unref (part);
1347                                 part = related_part;
1348                                 break;
1349                         }
1350                 }
1351
1352                 g_object_unref (G_OBJECT(part));
1353
1354                 part = NULL;
1355                 tny_iterator_next (iter);
1356         }
1357
1358         g_object_unref (G_OBJECT(iter));
1359         g_object_unref (G_OBJECT(parts));
1360
1361         return part;
1362 }
1363
1364
1365 static gboolean
1366 on_fetch_url (GtkWidget *widget, const gchar *uri,
1367               TnyStream *stream, ModestGtkhtmlMsgView *self)
1368 {
1369         ModestGtkhtmlMsgViewPrivate *priv;
1370         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1371         gboolean result = FALSE;
1372
1373         if (g_str_has_prefix (uri, "cid:")) {
1374                 /* +4 ==> skip "cid:" */
1375                 TnyMimePart *part = find_cid_image (priv->msg, uri + 4);
1376                 if (!part) {
1377                         g_printerr ("modest: '%s' not found\n", uri + 4);
1378                         result = FALSE;
1379                 } else {
1380                         tny_mime_part_decode_to_stream ((TnyMimePart*)part,
1381                                                         stream);
1382                         g_object_unref (G_OBJECT(part));
1383                         result = TRUE;
1384                 }
1385         } else {
1386                 return TRUE;
1387         }
1388
1389         return result;
1390 }
1391
1392 static void
1393 set_message (ModestGtkhtmlMsgView *self, TnyMsg *msg)
1394 {
1395         TnyMimePart *body;
1396         ModestGtkhtmlMsgViewPrivate *priv;
1397         TnyHeader *header;
1398         GtkAdjustment *html_vadj;
1399
1400         g_return_if_fail (self);
1401
1402         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1403         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1404
1405         if (msg != priv->msg) {
1406                 if (priv->msg)
1407                         g_object_unref (G_OBJECT(priv->msg));
1408                 if (msg)
1409                         g_object_ref   (G_OBJECT(msg));
1410                 priv->msg = msg;
1411         }
1412
1413         if (!msg) {
1414                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1415                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1416                 gtk_widget_hide_all (priv->mail_header_view);
1417                 gtk_widget_hide_all (priv->attachments_box);
1418                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1419                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1420                 gtk_widget_queue_resize (GTK_WIDGET(self));
1421                 gtk_widget_queue_draw (GTK_WIDGET(self));
1422                 return;
1423         }
1424
1425         header = tny_msg_get_header (msg);
1426         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1427         g_object_unref (header);
1428
1429         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1430                                              msg);
1431
1432         body = modest_tny_msg_find_body_part (msg, TRUE);
1433         if (body) {
1434                 tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), body);
1435
1436                 if(modest_attachments_view_has_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view))) {
1437                         gtk_widget_show_all (priv->attachments_box);
1438                 } else {
1439                         gtk_widget_hide_all (priv->attachments_box);
1440                 }
1441
1442         } else
1443                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1444
1445         gtk_widget_show (priv->body_view);
1446         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1447         gtk_widget_show_all (priv->mail_header_view);
1448         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1449         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1450         gtk_widget_queue_resize (GTK_WIDGET(self));
1451         gtk_widget_queue_draw (GTK_WIDGET(self));
1452
1453         if (priv->hadj != NULL)
1454                 priv->hadj->value = 0.0;
1455         if (priv->vadj != NULL)
1456                 priv->vadj->value = 0.0;
1457
1458         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1459
1460         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1461
1462         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1463          * makes the html view get the proper and expected size and prevent being able to scroll
1464          * the buffer when it shouldn't be scrollable */
1465         g_object_ref (self);
1466         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1467 }
1468
1469
1470 static TnyMsg*
1471 get_message (ModestGtkhtmlMsgView *self)
1472 {
1473         TnyMsg *msg;
1474
1475         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1476
1477         msg = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self)->msg;
1478
1479         if (msg)
1480                 g_object_ref (msg);
1481
1482         return msg;
1483 }
1484
1485 static gboolean
1486 is_empty (ModestGtkhtmlMsgView *self)
1487 {
1488         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1489
1490         return modest_mime_part_view_is_empty (MODEST_MIME_PART_VIEW (priv->body_view));
1491 }
1492
1493 static void
1494 set_zoom (ModestGtkhtmlMsgView *self, gdouble zoom)
1495 {
1496         ModestGtkhtmlMsgViewPrivate *priv;
1497
1498         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1499         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1500
1501         modest_zoomable_set_zoom (MODEST_ZOOMABLE(priv->body_view), zoom);
1502
1503         gtk_widget_queue_resize (priv->body_view);
1504 }
1505
1506 static gdouble
1507 get_zoom (ModestGtkhtmlMsgView *self)
1508 {
1509         ModestGtkhtmlMsgViewPrivate *priv;
1510
1511         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 1.0);
1512         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1513
1514         return modest_zoomable_get_zoom (MODEST_ZOOMABLE (priv->body_view));
1515 }
1516
1517 static TnyHeaderFlags
1518 get_priority (ModestGtkhtmlMsgView *self)
1519 {
1520         ModestGtkhtmlMsgViewPrivate *priv;
1521
1522         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 0);
1523
1524         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1525
1526         return priv->priority_flags;
1527 }
1528
1529 static void
1530 set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags)
1531 {
1532         ModestGtkhtmlMsgViewPrivate *priv;
1533
1534         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1535         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1536
1537         priv->priority_flags = flags & (TNY_HEADER_FLAG_HIGH_PRIORITY);
1538
1539         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1540 }
1541
1542 /* INCREMENTAL SEARCH IMPLEMENTATION */
1543
1544 static gboolean
1545 search (ModestGtkhtmlMsgView *self, const gchar *search)
1546 {
1547         ModestGtkhtmlMsgViewPrivate *priv;
1548         gboolean result;
1549         GtkAdjustment *vadj, *tmp_vadj;
1550         gdouble y_offset;
1551
1552         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1553
1554         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1555         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->body_view));
1556         g_object_ref (vadj);
1557         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1558         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), tmp_vadj);
1559         result = modest_isearch_view_search (MODEST_ISEARCH_VIEW (priv->body_view),
1560                                              search);
1561
1562         if (result) {
1563                 gint x, y, w, h;
1564                 gdouble offset_top, offset_bottom;
1565                 GtkAdjustment *adj;
1566                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1567                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1568                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1569                         adj = GTK_ADJUSTMENT (priv->vadj);
1570                         if (offset_top < adj->value)
1571                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1572                         else if (offset_bottom > adj->value + adj->page_increment)
1573                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1574                 }
1575         }
1576
1577         y_offset = tmp_vadj->value;
1578         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), vadj);
1579         g_object_unref (vadj);
1580
1581         return result;
1582 }
1583
1584 static gboolean
1585 search_next (ModestGtkhtmlMsgView *self)
1586 {
1587         ModestGtkhtmlMsgViewPrivate *priv;
1588         gboolean result;
1589
1590         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1591
1592         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1593         result = modest_isearch_view_search_next (MODEST_ISEARCH_VIEW (priv->body_view));
1594
1595         if (result) {
1596                 gint x, y, w, h;
1597                 gdouble offset_top, offset_bottom;
1598                 GtkAdjustment *adj;
1599
1600                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1601                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1602                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1603                         adj = GTK_ADJUSTMENT (priv->vadj);
1604                         if (offset_top < adj->value)
1605                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1606                         else if (offset_bottom > adj->value + adj->page_increment)
1607                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1608                 }
1609         }
1610         return result;
1611 }
1612
1613 static GList *
1614 get_selected_attachments (ModestGtkhtmlMsgView *self)
1615 {
1616         ModestGtkhtmlMsgViewPrivate *priv;
1617
1618         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1619         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1620
1621         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1622
1623 }
1624
1625 static GList *
1626 get_attachments (ModestGtkhtmlMsgView *self)
1627 {
1628         ModestGtkhtmlMsgViewPrivate *priv;
1629
1630         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1631         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1632
1633         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1634
1635 }
1636
1637 static void
1638 grab_focus (ModestGtkhtmlMsgView *self)
1639 {
1640         ModestGtkhtmlMsgViewPrivate *priv = NULL;
1641
1642         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1643         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1644
1645         gtk_widget_grab_focus (priv->body_view);
1646 }
1647
1648 static void
1649 remove_attachment (ModestGtkhtmlMsgView *self, TnyMimePart *attachment)
1650 {
1651         ModestGtkhtmlMsgViewPrivate *priv;
1652
1653         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1654         g_return_if_fail (TNY_IS_MIME_PART (attachment));
1655         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1656
1657         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1658                                                    attachment);
1659
1660 }
1661
1662 /* TNY MSG IMPLEMENTATION */
1663
1664 static void
1665 tny_msg_view_init (gpointer g, gpointer iface_data)
1666 {
1667         TnyMsgViewIface *klass = (TnyMsgViewIface *)g;
1668
1669         klass->get_msg_func = modest_msg_view_get_msg;
1670         klass->set_msg_func = modest_msg_view_set_msg;
1671         klass->set_unavailable_func = modest_msg_view_set_unavailable;
1672         klass->clear_func = modest_msg_view_clear;
1673         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for;
1674         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer;
1675
1676         return;
1677 }
1678
1679 static TnyMsg *
1680 modest_msg_view_get_msg (TnyMsgView *self)
1681 {
1682         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_msg_func (self);
1683 }
1684
1685 static TnyMsg *
1686 modest_msg_view_get_msg_default (TnyMsgView *self)
1687 {
1688         return TNY_MSG (tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (self)));
1689 }
1690
1691 static void
1692 modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg)
1693 {
1694         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_func (self, msg);
1695 }
1696
1697 static void
1698 modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg)
1699 {
1700
1701         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (self), TNY_MIME_PART (msg));
1702
1703         return;
1704 }
1705
1706 static void
1707 modest_msg_view_set_unavailable (TnyMsgView *self)
1708 {
1709         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_unavailable_func (self);
1710 }
1711
1712 static void
1713 modest_msg_view_set_unavailable_default (TnyMsgView *self)
1714 {
1715         tny_msg_view_clear (self);
1716
1717         return;
1718 }
1719
1720 static void
1721 modest_msg_view_clear (TnyMsgView *self)
1722 {
1723         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_func (self);
1724 }
1725
1726 static void
1727 modest_msg_view_clear_default (TnyMsgView *self)
1728 {
1729         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL);
1730 }
1731
1732 static TnyMimePartView*
1733 modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part)
1734 {
1735         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_mime_part_view_for_func (self, part);
1736 }
1737
1738 static TnyMimePartView*
1739 modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part)
1740 {
1741         g_warning ("modest_msg_view_create_mime_part_view_for_default is not implemented");
1742         return NULL;
1743 }
1744
1745 static TnyMsgView*
1746 modest_msg_view_create_new_inline_viewer (TnyMsgView *self)
1747 {
1748         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_new_inline_viewer_func (self);
1749 }
1750
1751 static TnyMsgView*
1752 modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self)
1753 {
1754         g_warning ("modest_msg_view_create_new_inline_viewer_default is not implemented");
1755
1756         return NULL;
1757 }
1758
1759 /* TNY MIME PART IMPLEMENTATION */
1760
1761 static void
1762 tny_mime_part_view_init (gpointer g, gpointer iface_data)
1763 {
1764         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
1765
1766         klass->get_part_func = modest_msg_view_mp_get_part;
1767         klass->set_part_func = modest_msg_view_mp_set_part;
1768         klass->clear_func = modest_msg_view_mp_clear;
1769
1770         return;
1771 }
1772
1773 static TnyMimePart*
1774 modest_msg_view_mp_get_part (TnyMimePartView *self)
1775 {
1776         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_part_func (self);
1777 }
1778
1779
1780 static TnyMimePart*
1781 modest_msg_view_mp_get_part_default (TnyMimePartView *self)
1782 {
1783         return TNY_MIME_PART (get_message (MODEST_GTKHTML_MSG_VIEW (self)));
1784 }
1785
1786 static void
1787 modest_msg_view_mp_set_part (TnyMimePartView *self,
1788                              TnyMimePart *part)
1789 {
1790         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_part_func (self, part);
1791 }
1792
1793 static void
1794 modest_msg_view_mp_set_part_default (TnyMimePartView *self,
1795                                      TnyMimePart *part)
1796 {
1797         g_return_if_fail ((part == NULL) || TNY_IS_MSG (part));
1798
1799         set_message (MODEST_GTKHTML_MSG_VIEW (self), TNY_MSG (part));
1800 }
1801
1802 static void
1803 modest_msg_view_mp_clear (TnyMimePartView *self)
1804 {
1805         tny_msg_view_clear (TNY_MSG_VIEW (self));
1806 }
1807
1808 /* MODEST MIME PART VIEW IMPLEMENTATION */
1809
1810 static void
1811 modest_mime_part_view_init (gpointer g, gpointer iface_data)
1812 {
1813         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
1814
1815         klass->is_empty_func = modest_msg_view_mp_is_empty;
1816
1817         return;
1818 }
1819
1820 static gboolean
1821 modest_msg_view_mp_is_empty (ModestMimePartView *self)
1822 {
1823         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->is_empty_func (self);
1824 }
1825
1826 static gboolean
1827 modest_msg_view_mp_is_empty_default (ModestMimePartView *self)
1828 {
1829         return is_empty (MODEST_GTKHTML_MSG_VIEW (self));
1830 }
1831
1832 /* MODEST ZOOMABLE IMPLEMENTATION */
1833 static void
1834 modest_zoomable_init (gpointer g, gpointer iface_data)
1835 {
1836         ModestZoomableIface *klass = (ModestZoomableIface *)g;
1837
1838         klass->get_zoom_func = modest_msg_view_get_zoom;
1839         klass->set_zoom_func = modest_msg_view_set_zoom;
1840         klass->zoom_minus_func = modest_msg_view_zoom_minus;
1841         klass->zoom_plus_func = modest_msg_view_zoom_plus;
1842
1843         return;
1844 }
1845
1846 static gdouble
1847 modest_msg_view_get_zoom (ModestZoomable *self)
1848 {
1849         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_zoom_func (self);
1850 }
1851
1852 static gdouble
1853 modest_msg_view_get_zoom_default (ModestZoomable *self)
1854 {
1855         return get_zoom (MODEST_GTKHTML_MSG_VIEW (self));
1856 }
1857
1858 static void
1859 modest_msg_view_set_zoom (ModestZoomable *self, gdouble value)
1860 {
1861         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
1862 }
1863
1864 static void
1865 modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value)
1866 {
1867         set_zoom (MODEST_GTKHTML_MSG_VIEW (self), value);
1868 }
1869
1870 static gboolean
1871 modest_msg_view_zoom_minus (ModestZoomable *self)
1872 {
1873         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_minus_func (self);
1874 }
1875
1876 static gboolean
1877 modest_msg_view_zoom_minus_default (ModestZoomable *self)
1878 {
1879         /* operation not supported in ModestMsgView */
1880         return FALSE;
1881 }
1882
1883 static gboolean
1884 modest_msg_view_zoom_plus (ModestZoomable *self)
1885 {
1886         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_plus_func (self);
1887 }
1888
1889 static gboolean
1890 modest_msg_view_zoom_plus_default (ModestZoomable *self)
1891 {
1892         /* operation not supported in ModestMsgView */
1893         return FALSE;
1894 }
1895
1896 /* MODEST ISEARCH VIEW IMPLEMENTATION */
1897 static void
1898 modest_isearch_view_init (gpointer g, gpointer iface_data)
1899 {
1900         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
1901
1902         klass->search_func = modest_msg_view_search;
1903         klass->search_next_func = modest_msg_view_search_next;
1904
1905         return;
1906 }
1907
1908 static gboolean
1909 modest_msg_view_search (ModestISearchView *self, const gchar *string)
1910 {
1911         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_func (self, string);
1912 }
1913
1914 static gboolean
1915 modest_msg_view_search_default (ModestISearchView *self, const gchar *string)
1916 {
1917         return search (MODEST_GTKHTML_MSG_VIEW (self), string);
1918 }
1919
1920 static gboolean
1921 modest_msg_view_search_next (ModestISearchView *self)
1922 {
1923         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_next_func (self);
1924 }
1925
1926 static gboolean
1927 modest_msg_view_search_next_default (ModestISearchView *self)
1928 {
1929         return search_next (MODEST_GTKHTML_MSG_VIEW (self));
1930 }
1931
1932 /* MODEST MSG VIEW IMPLEMENTATION */
1933 static void
1934 modest_msg_view_init (gpointer g, gpointer iface_data)
1935 {
1936         ModestMsgViewIface *klass = (ModestMsgViewIface *)g;
1937
1938         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment;
1939         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment;
1940         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment;
1941         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment;
1942         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type;
1943         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type;
1944         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority;
1945         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority;
1946         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments;
1947         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments;
1948         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus;
1949         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment;
1950
1951         return;
1952 }
1953
1954 static GtkAdjustment*
1955 modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self)
1956 {
1957         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_vadjustment_func (self);
1958 }
1959
1960 static GtkAdjustment*
1961 modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self)
1962 {
1963         return get_vadjustment (MODEST_GTKHTML_MSG_VIEW (self));
1964 }
1965
1966 static GtkAdjustment*
1967 modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self)
1968 {
1969         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_hadjustment_func (self);
1970 }
1971
1972 static GtkAdjustment*
1973 modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self)
1974 {
1975         return get_hadjustment (MODEST_GTKHTML_MSG_VIEW (self));
1976 }
1977
1978 static void
1979 modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *adj)
1980 {
1981         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_vadjustment_func (self, adj);
1982 }
1983
1984 static void
1985 modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
1986 {
1987         set_vadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
1988 }
1989
1990 static void
1991 modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *adj)
1992 {
1993         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_hadjustment_func (self, adj);
1994 }
1995
1996 static void
1997 modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
1998 {
1999         set_hadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2000 }
2001
2002 static void
2003 modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type)
2004 {
2005         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_shadow_type_func (self, type);
2006 }
2007
2008 static void
2009 modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type)
2010 {
2011         set_shadow_type (MODEST_GTKHTML_MSG_VIEW (self), type);
2012 }
2013
2014 static GtkShadowType
2015 modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self)
2016 {
2017         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_shadow_type_func (self);
2018 }
2019
2020 static GtkShadowType
2021 modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self)
2022 {
2023         return get_shadow_type (MODEST_GTKHTML_MSG_VIEW (self));
2024 }
2025
2026 static void
2027 modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
2028 {
2029         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_priority_func (self, flags);
2030 }
2031
2032 static void
2033 modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags)
2034 {
2035         set_priority (MODEST_GTKHTML_MSG_VIEW (self), flags);
2036 }
2037
2038 static TnyHeaderFlags
2039 modest_gtkhtml_msg_view_get_priority (ModestMsgView *self)
2040 {
2041         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_priority_func (self);
2042 }
2043
2044 static TnyHeaderFlags
2045 modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self)
2046 {
2047         return get_priority (MODEST_GTKHTML_MSG_VIEW (self));
2048 }
2049
2050 static GList*
2051 modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self)
2052 {
2053         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_selected_attachments_func (self);
2054 }
2055
2056 static GList*
2057 modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self)
2058 {
2059         return get_selected_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2060 }
2061
2062 static GList*
2063 modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self)
2064 {
2065         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_attachments_func (self);
2066 }
2067
2068 static GList*
2069 modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self)
2070 {
2071         return get_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2072 }
2073
2074 static void
2075 modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self)
2076 {
2077         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->grab_focus_func (self);
2078 }
2079
2080 static void
2081 modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self)
2082 {
2083         grab_focus (MODEST_GTKHTML_MSG_VIEW (self));
2084 }
2085
2086 static void
2087 modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *self, TnyMimePart *attachment)
2088 {
2089         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->remove_attachment_func (self, attachment);
2090 }
2091
2092 static void
2093 modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *self, TnyMimePart *attachment)
2094 {
2095         remove_attachment (MODEST_GTKHTML_MSG_VIEW (self), attachment);
2096 }
2097