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 #include <tny-vfs-stream.h>
  40
  41 #include <modest-tny-msg.h>
  42 #include <modest-text-utils.h>
  43 #include <widgets/modest-msg-view.h>
  44 #ifdef MODEST_TOOLKIT_HILDON2
  45 #include <widgets/modest-compact-mail-header-view.h>
  46 #include <hildon/hildon-gtk.h>
  47 #else
  48 #include <widgets/modest-expander-mail-header-view.h>
  49 #endif
  50 #include <widgets/modest-attachments-view.h>
  51 #include <modest-marshal.h>
  52 #include <widgets/modest-gtkhtml-mime-part-view.h>
  53 #include <widgets/modest-gtkhtml-msg-view.h>
  54 #include <widgets/modest-isearch-view.h>
  55 #include <widgets/modest-ui-constants.h>
  56 #include <modest-icon-names.h>
  57
  58 /* FIXNE: we should have no maemo-deps in widgets/ */
  59 #ifndef MODEST_TOOLKIT_GTK
  60 #include "maemo/modest-hildon-includes.h"
  61 #endif /*!MODEST_TOOLKIT_GTK*/
  62
  63
  64 /* 'private'/'protected' functions */
  65 static void     modest_gtkhtml_msg_view_class_init   (ModestGtkhtmlMsgViewClass *klass);
  66 static void     tny_header_view_init (gpointer g, gpointer iface_data);
  67 static void     tny_msg_view_init (gpointer g, gpointer iface_data);
  68 static void     tny_mime_part_view_init (gpointer g, gpointer iface_data);
  69 static void     modest_mime_part_view_init (gpointer g, gpointer iface_data);
  70 static void     modest_zoomable_init (gpointer g, gpointer iface_data);
  71 static void     modest_isearch_view_init (gpointer g, gpointer iface_data);
  72 static void     modest_msg_view_init (gpointer g, gpointer iface_data);
  73 static void     modest_gtkhtml_msg_view_init         (ModestGtkhtmlMsgView *obj);
  74 static void     modest_gtkhtml_msg_view_finalize     (GObject *obj);
  75 static void     modest_gtkhtml_msg_view_destroy     (GtkObject *obj);
  76 static void     set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
  77 static void     get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
  78
  79 /* headers signals */
  80 static void on_recpt_activated (ModestMailHeaderView *header_view, const gchar *address, ModestGtkhtmlMsgView *msg_view);
  81 static void on_show_details (ModestMailHeaderView *header_view, ModestGtkhtmlMsgView *msg_view);
  82 static void on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer userdata);
  83
  84 /* body view signals */
  85 static gboolean on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  86 static gboolean on_fetch_url (GtkWidget *widget, const gchar *uri, TnyStream *stream,
  87                               ModestGtkhtmlMsgView *msg_view);
  88 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  89
  90 #ifdef MAEMO_CHANGES
  91 static void     on_tap_and_hold (GtkWidget *widget, gpointer userdata);
  92 static gboolean on_tap_and_hold_query (GtkWidget *widget, GdkEvent *event, gpointer userdata);
  93 #endif /*MAEMO_CHANGES*/
  94
  95
  96 /* size allocation and drawing handlers */
  97 static void get_view_allocation (ModestGtkhtmlMsgView *msg_view, GtkAllocation *allocation);
  98 static void size_request (GtkWidget *widget, GtkRequisition *req);
  99 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
 100 static void realize (GtkWidget *widget);
 101 static void unrealize (GtkWidget *widget);
 102 static gint expose (GtkWidget *widget, GdkEventExpose *event);
 103 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
 104 static void set_hadjustment_values (ModestGtkhtmlMsgView *msg_view, gboolean *value_changed);
 105 static void set_scroll_adjustments (ModestGtkhtmlMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
 106 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
 107 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
 108 static void disconnect_vadjustment (ModestGtkhtmlMsgView *obj);
 109 static void disconnect_hadjustment (ModestGtkhtmlMsgView *obj);
 110 static gboolean idle_readjust_scroll (ModestGtkhtmlMsgView *obj);
 111
 112 /* vertical panning implementation */
 113 #ifdef MAEMO_CHANGES
 114 static gboolean motion_notify_event (GtkWidget *widget,
 115                                      GdkEventMotion *event,
 116                                      gpointer userdata);
 117 #endif
 118
 119 static gboolean
 120 button_press_event (GtkWidget *widget,
 121                     GdkEventButton *event,
 122                     gpointer userdata);
 123 static gboolean
 124 button_release_event (GtkWidget *widget,
 125                       GdkEventButton *event,
 126                       gpointer userdata);
 127
 128 /* GtkContainer methods */
 129 static void forall (GtkContainer *container, gboolean include_internals,
 130                     GtkCallback callback, gpointer userdata);
 131 static void container_remove (GtkContainer *container, GtkWidget *widget);
 132
 133 /* TnyMimePartView implementation */
 134 static void modest_msg_view_mp_clear (TnyMimePartView *self);
 135 static void modest_msg_view_mp_set_part (TnyMimePartView *self, TnyMimePart *part);
 136 static void modest_msg_view_mp_set_part_default (TnyMimePartView *self, TnyMimePart *part);
 137 static TnyMimePart* modest_msg_view_mp_get_part (TnyMimePartView *self);
 138 static TnyMimePart* modest_msg_view_mp_get_part_default (TnyMimePartView *self);
 139 /* ModestMimePartView implementation */
 140 static gboolean modest_msg_view_mp_is_empty (ModestMimePartView *self);
 141 static gboolean modest_msg_view_mp_is_empty_default (ModestMimePartView *self);
 142 /* TnyHeaderView implementation */
 143 static void modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header);
 144 static void modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header);
 145 static void modest_msg_view_clear_header (TnyHeaderView *self);
 146 static void modest_msg_view_clear_header_default (TnyHeaderView *self);
 147 /* TnyMsgView implementation */
 148 static TnyMsg *modest_msg_view_get_msg (TnyMsgView *self);
 149 static TnyMsg *modest_msg_view_get_msg_default (TnyMsgView *self);
 150 static void modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg);
 151 static void modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg);
 152 static void modest_msg_view_clear (TnyMsgView *self);
 153 static void modest_msg_view_clear_default (TnyMsgView *self);
 154 static void modest_msg_view_set_unavailable (TnyMsgView *self);
 155 static void modest_msg_view_set_unavailable_default (TnyMsgView *self);
 156 static TnyMimePartView *modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part);
 157 static TnyMimePartView *modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part);
 158 static TnyMsgView *modest_msg_view_create_new_inline_viewer (TnyMsgView *self);
 159 static TnyMsgView *modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self);
 160 /* ModestZoomable implementation */
 161 static gdouble modest_msg_view_get_zoom (ModestZoomable *self);
 162 static void modest_msg_view_set_zoom (ModestZoomable *self, gdouble value);
 163 static gboolean modest_msg_view_zoom_minus (ModestZoomable *self);
 164 static gboolean modest_msg_view_zoom_plus (ModestZoomable *self);
 165 static gdouble modest_msg_view_get_zoom_default (ModestZoomable *self);
 166 static void modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value);
 167 static gboolean modest_msg_view_zoom_minus_default (ModestZoomable *self);
 168 static gboolean modest_msg_view_zoom_plus_default (ModestZoomable *self);
 169 /* ModestISearchView implementation */
 170 static gboolean modest_msg_view_search (ModestISearchView *self, const gchar *string);
 171 static gboolean modest_msg_view_search_default (ModestISearchView *self, const gchar *string);
 172 static gboolean modest_msg_view_search_next (ModestISearchView *self);
 173 static gboolean modest_msg_view_search_next_default (ModestISearchView *self);
 174 /* ModestMsgView implementation */
 175 static void modest_gtkhtml_msg_view_set_msg_with_other_body (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body);
 176 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self);
 177 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self);
 178 static void modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *vadj);
 179 static void modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *hadj);
 180 static void modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type);
 181 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self);
 182 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority (ModestMsgView *self);
 183 static void modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags);
 184 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self);
 185 static TnyList *modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self);
 186 static void modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self);
 187 static void modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *view, TnyMimePart *attachment);
 188 static void modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *view);
 189 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *view);
 190 static void modest_gtkhtml_msg_view_set_msg_with_other_body_default (ModestMsgView *view, TnyMsg *msg, TnyMimePart *part);
 191 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self);
 192 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self);
 193 static void modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *vadj);
 194 static void modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *hadj);
 195 static void modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type);
 196 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self);
 197 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self);
 198 static void modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags);
 199 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self);
 200 static TnyList *modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self);
 201 static void modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self);
 202 static void modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *view, TnyMimePart *attachment);
 203 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *view);
 204 static void modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *view);
 205
 206 /* internal api */
 207 static void     set_header     (ModestGtkhtmlMsgView *self, TnyHeader *header);
 208 static TnyMsg   *get_message   (ModestGtkhtmlMsgView *self);
 209 static void     set_message    (ModestGtkhtmlMsgView *self, TnyMsg *tny_msg, TnyMimePart *other_body);
 210 static gboolean is_empty       (ModestGtkhtmlMsgView *self);
 211 static void     set_zoom       (ModestGtkhtmlMsgView *self, gdouble zoom);
 212 static gdouble  get_zoom       (ModestGtkhtmlMsgView *self);
 213 static gboolean search         (ModestGtkhtmlMsgView *self, const gchar *search);
 214 static gboolean search_next    (ModestGtkhtmlMsgView *self);
 215 static GtkAdjustment *get_vadjustment (ModestGtkhtmlMsgView *self);
 216 static GtkAdjustment *get_hadjustment (ModestGtkhtmlMsgView *self);
 217 static void set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj);
 218 static void set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj);
 219 static void set_shadow_type (ModestGtkhtmlMsgView *self, GtkShadowType type);
 220 static GtkShadowType get_shadow_type (ModestGtkhtmlMsgView *self);
 221 static TnyHeaderFlags get_priority (ModestGtkhtmlMsgView *self);
 222 static void set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags);
 223 static TnyList *get_selected_attachments (ModestGtkhtmlMsgView *self);
 224 static TnyList *get_attachments (ModestGtkhtmlMsgView *self);
 225 static void grab_focus (ModestGtkhtmlMsgView *self);
 226 static void remove_attachment (ModestGtkhtmlMsgView *view, TnyMimePart *attachment);
 227 static void request_fetch_images (ModestGtkhtmlMsgView *view);
 228 static gboolean has_blocked_external_images (ModestGtkhtmlMsgView *view);
 229
 230 /* list properties */
 231 enum {
 232         PROP_0,
 233         PROP_HADJUSTMENT,
 234         PROP_VADJUSTMENT,
 235         PROP_SHADOW_TYPE
 236 };
 237
 238 typedef struct _ModestGtkhtmlMsgViewPrivate ModestGtkhtmlMsgViewPrivate;
 239 struct _ModestGtkhtmlMsgViewPrivate {
 240         GtkWidget   *body_view;
 241         GtkWidget   *mail_header_view;
 242         GtkWidget   *attachments_view;
 243
 244         TnyMsg      *msg;
 245
 246         /* embedded elements */
 247         GtkWidget   *headers_box;
 248         GtkWidget   *html_scroll;
 249         GtkWidget   *attachments_box;
 250
 251 #ifdef MODEST_TOOLKIT_HILDON2
 252         GtkWidget   *priority_box;
 253         GtkWidget   *priority_icon;
 254 #endif
 255
 256         /* internal adjustments for set_scroll_adjustments */
 257         GtkAdjustment *hadj;
 258         GtkAdjustment *vadj;
 259         GtkShadowType shadow_type;
 260
 261         /* gdk windows for drawing */
 262         GdkWindow *view_window;
 263         GdkWindow *headers_window;
 264         GdkWindow *html_window;
 265
 266         /* id handler for dragged scroll */
 267         guint idle_motion_id;
 268
 269         /* zoom */
 270         gdouble current_zoom;
 271
 272         /* link click management */
 273         gchar *last_url;
 274 };
 275
 276 #define MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 277                                                                                  MODEST_TYPE_GTKHTML_MSG_VIEW, \
 278                                                                                  ModestGtkhtmlMsgViewPrivate))
 279
 280 /* globals */
 281 static GtkContainerClass *parent_class = NULL;
 282
 283 GType
 284 modest_gtkhtml_msg_view_get_type (void)
 285 {
 286         static GType my_type = 0;
 287         if (!my_type) {
 288                 static const GTypeInfo my_info = {
 289                         sizeof(ModestGtkhtmlMsgViewClass),
 290                         NULL,           /* base init */
 291                         NULL,           /* base finalize */
 292                         (GClassInitFunc) modest_gtkhtml_msg_view_class_init,
 293                         NULL,           /* class finalize */
 294                         NULL,           /* class data */
 295                         sizeof(ModestGtkhtmlMsgView),
 296                         1,              /* n_preallocs */
 297                         (GInstanceInitFunc) modest_gtkhtml_msg_view_init,
 298                         NULL
 299                 };
 300                 static const GInterfaceInfo tny_msg_view_info =
 301                 {
 302                   (GInterfaceInitFunc) tny_msg_view_init, /* interface_init */
 303                   NULL,         /* interface_finalize */
 304                   NULL          /* interface_data */
 305                 };
 306
 307                 static const GInterfaceInfo tny_mime_part_view_info =
 308                 {
 309                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 310                   NULL,         /* interface_finalize */
 311                   NULL          /* interface_data */
 312                 };
 313
 314                 static const GInterfaceInfo tny_header_view_info =
 315                 {
 316                   (GInterfaceInitFunc) tny_header_view_init, /* interface_init */
 317                   NULL,         /* interface_finalize */
 318                   NULL          /* interface_data */
 319                 };
 320
 321                 static const GInterfaceInfo modest_mime_part_view_info =
 322                 {
 323                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 324                   NULL,         /* interface_finalize */
 325                   NULL          /* interface_data */
 326                 };
 327
 328                 static const GInterfaceInfo modest_zoomable_info =
 329                 {
 330                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 331                   NULL,         /* interface_finalize */
 332                   NULL          /* interface_data */
 333                 };
 334
 335                 static const GInterfaceInfo modest_isearch_view_info =
 336                 {
 337                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 338                   NULL,         /* interface_finalize */
 339                   NULL          /* interface_data */
 340                 };
 341
 342                 static const GInterfaceInfo modest_msg_view_info =
 343                 {
 344                   (GInterfaceInitFunc) modest_msg_view_init, /* interface_init */
 345                   NULL,         /* interface_finalize */
 346                   NULL          /* interface_data */
 347                 };
 348
 349                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 350                                                   "ModestGtkhtmlMsgView",
 351                                                   &my_info, 0);
 352
 353                 g_type_add_interface_static (my_type, TNY_TYPE_HEADER_VIEW,
 354                         &tny_header_view_info);
 355
 356                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 357                         &tny_mime_part_view_info);
 358
 359                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 360                         &modest_mime_part_view_info);
 361
 362                 g_type_add_interface_static (my_type, TNY_TYPE_MSG_VIEW,
 363                         &tny_msg_view_info);
 364
 365                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 366                         &modest_zoomable_info);
 367
 368                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 369                         &modest_isearch_view_info);
 370
 371                 g_type_add_interface_static (my_type, MODEST_TYPE_MSG_VIEW,
 372                         &modest_msg_view_info);
 373         }
 374         return my_type;
 375 }
 376
 377 static void
 378 modest_gtkhtml_msg_view_class_init (ModestGtkhtmlMsgViewClass *klass)
 379 {
 380         GObjectClass *gobject_class;
 381         GtkWidgetClass *widget_class;
 382         GtkObjectClass *gtkobject_class;
 383         GtkContainerClass *container_class;
 384         gobject_class = (GObjectClass*) klass;
 385         widget_class = (GtkWidgetClass *) klass;
 386         gtkobject_class = (GtkObjectClass *) klass;
 387         container_class = (GtkContainerClass *) klass;
 388
 389         parent_class            = g_type_class_peek_parent (klass);
 390         gobject_class->finalize = modest_gtkhtml_msg_view_finalize;
 391         gobject_class->set_property = set_property;
 392         gobject_class->get_property = get_property;
 393         gtkobject_class->destroy = modest_gtkhtml_msg_view_destroy;
 394
 395         widget_class->realize = realize;
 396         widget_class->unrealize = unrealize;
 397         widget_class->expose_event = expose;
 398         widget_class->size_request = size_request;
 399         widget_class->size_allocate = size_allocate;
 400
 401         container_class->forall = forall;
 402         container_class->remove = container_remove;
 403
 404         klass->set_header_func = modest_msg_view_set_header_default;
 405         klass->clear_header_func = modest_msg_view_clear_header_default;
 406         klass->set_scroll_adjustments = set_scroll_adjustments;
 407         klass->get_part_func = modest_msg_view_mp_get_part_default;
 408         klass->set_part_func = modest_msg_view_mp_set_part_default;
 409         klass->is_empty_func = modest_msg_view_mp_is_empty_default;
 410         klass->get_msg_func = modest_msg_view_get_msg_default;
 411         klass->set_msg_func = modest_msg_view_set_msg_default;
 412         klass->set_unavailable_func = modest_msg_view_set_unavailable_default;
 413         klass->clear_func = modest_msg_view_clear_default;
 414         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for_default;
 415         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer_default;
 416         klass->get_zoom_func = modest_msg_view_get_zoom_default;
 417         klass->set_zoom_func = modest_msg_view_set_zoom_default;
 418         klass->zoom_minus_func = modest_msg_view_zoom_minus_default;
 419         klass->zoom_plus_func = modest_msg_view_zoom_plus_default;
 420         klass->search_func = modest_msg_view_search_default;
 421         klass->search_next_func = modest_msg_view_search_next_default;
 422         klass->set_msg_with_other_body_func = modest_gtkhtml_msg_view_set_msg_with_other_body_default;
 423         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment_default;
 424         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment_default;
 425         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment_default;
 426         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment_default;
 427         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type_default;
 428         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type_default;
 429         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority_default;
 430         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority_default;
 431         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments_default;
 432         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments_default;
 433         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus_default;
 434         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment_default;
 435         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images_default;
 436         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images_default;
 437
 438         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMsgViewPrivate));
 439
 440         g_object_class_install_property (gobject_class,
 441                                          PROP_HADJUSTMENT,
 442                                          g_param_spec_object ("hadjustment",
 443                                                               _("Horizontal adjustment"),
 444                                                               _("GtkAdjustment with information of the horizontal visible position"),
 445                                                               GTK_TYPE_ADJUSTMENT,
 446                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 447
 448         g_object_class_install_property (gobject_class,
 449                                          PROP_VADJUSTMENT,
 450                                          g_param_spec_object ("vadjustment",
 451                                                               _("Vertical adjustment"),
 452                                                               _("GtkAdjustment with information of the vertical visible position"),
 453                                                               GTK_TYPE_ADJUSTMENT,
 454                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 455
 456         g_object_class_install_property (gobject_class,
 457                                          PROP_SHADOW_TYPE,
 458                                          g_param_spec_enum ("shadow_type",
 459                                                             _("Shadow type"),
 460                                                             _("Kind of shadow that's shown around the view"),
 461                                                             GTK_TYPE_SHADOW_TYPE,
 462                                                             GTK_SHADOW_IN,
 463                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 464
 465         widget_class->set_scroll_adjustments_signal =
 466                 g_signal_new ("set_scroll_adjustments",
 467                               G_OBJECT_CLASS_TYPE (gobject_class),
 468                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 469                               G_STRUCT_OFFSET (ModestGtkhtmlMsgViewClass, set_scroll_adjustments),
 470                               NULL, NULL,
 471                               modest_marshal_VOID__POINTER_POINTER,
 472                               G_TYPE_NONE, 2,
 473                               GTK_TYPE_ADJUSTMENT,
 474                               GTK_TYPE_ADJUSTMENT);
 475 }
 476
 477 static void
 478 set_property (GObject *object,
 479               guint prop_id,
 480               const GValue *value,
 481               GParamSpec *pspec)
 482 {
 483         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 484
 485         switch (prop_id) {
 486         case PROP_HADJUSTMENT:
 487                 set_hadjustment (self, g_value_get_object (value));
 488                 break;
 489         case PROP_VADJUSTMENT:
 490                 set_vadjustment (self, g_value_get_object (value));
 491                 break;
 492         case PROP_SHADOW_TYPE:
 493                 set_shadow_type (self, g_value_get_enum (value));
 494                 break;
 495         default:
 496                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 497                 break;
 498         }
 499 }
 500
 501 static void
 502 get_property (GObject *object,
 503               guint prop_id,
 504               GValue *value,
 505               GParamSpec *pspec)
 506 {
 507         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 508         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 509
 510         switch (prop_id) {
 511         case PROP_HADJUSTMENT:
 512                 g_value_set_object (value, priv->hadj);
 513                 break;
 514         case PROP_VADJUSTMENT:
 515                 g_value_set_object (value, priv->vadj);
 516                 break;
 517         case PROP_SHADOW_TYPE:
 518                 g_value_set_enum (value, priv->shadow_type);
 519                 break;
 520         default:
 521                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 522                 break;
 523         }
 524 }
 525
 526 static void
 527 disconnect_hadjustment (ModestGtkhtmlMsgView *self)
 528 {
 529         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 530
 531         if (priv->hadj) {
 532                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, self);
 533                 g_object_unref (priv->hadj);
 534                 priv->hadj = NULL;
 535         }
 536 }
 537
 538 static void
 539 disconnect_vadjustment (ModestGtkhtmlMsgView *self)
 540 {
 541         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 542
 543         if (priv->vadj) {
 544                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, self);
 545                 g_object_unref (priv->vadj);
 546                 priv->vadj = NULL;
 547         }
 548 }
 549
 550 static void
 551 get_view_allocation (ModestGtkhtmlMsgView *self, GtkAllocation *allocation)
 552 {
 553         /* This method gets the allocation of the widget in parent widget. It's the
 554            real position and size of the widget */
 555         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 556
 557         allocation->x = 0;
 558         allocation->y = 0;
 559
 560         if (priv->shadow_type != GTK_SHADOW_NONE) {
 561                 allocation->x = GTK_WIDGET (self)->style->xthickness;
 562                 allocation->y = GTK_WIDGET (self)->style->ythickness;
 563         }
 564
 565         allocation->width = MAX (1, (GTK_WIDGET (self)->allocation.width) - allocation->x * 2);
 566         allocation->height = MAX (1, (GTK_WIDGET (self)->allocation.height) - allocation->y * 2);
 567
 568 }
 569
 570 static void
 571 reclamp_adjustment (GtkAdjustment *adj,
 572                     gboolean *value_changed)
 573 {
 574         gdouble value = adj->value;
 575
 576         /* Correct value to be inside the expected values of a scroll */
 577
 578         value = CLAMP (value, 0, adj->upper - adj->page_size);
 579
 580         if (value != adj->value) {
 581                 adj->value = value;
 582                 if (value_changed)
 583                         *value_changed = TRUE;
 584         } else if (value_changed) {
 585                 *value_changed = FALSE;
 586         }
 587 }
 588
 589 static void
 590 set_hadjustment_values (ModestGtkhtmlMsgView *self,
 591                         gboolean *value_changed)
 592 {
 593         GtkAllocation view_allocation;
 594         GtkAdjustment *hadj = get_hadjustment (self);
 595
 596         get_view_allocation (self, &view_allocation);
 597         hadj->page_size = view_allocation.width;
 598         hadj->step_increment = view_allocation.width * 0.1;
 599         hadj->page_increment = view_allocation.width * 0.9;
 600
 601         hadj->lower = 0;
 602         hadj->upper = view_allocation.width;
 603
 604         reclamp_adjustment (hadj, value_changed);
 605
 606 }
 607
 608 static void
 609 set_vadjustment_values (ModestGtkhtmlMsgView *self,
 610                         gboolean *value_changed)
 611 {
 612         GtkAllocation view_allocation;
 613         GtkAdjustment *vadj = get_vadjustment (self);
 614         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 615         gint full_height = 0;
 616         GtkAdjustment *html_vadj;
 617
 618         get_view_allocation (self, &view_allocation);
 619         vadj->page_size = view_allocation.height;
 620         vadj->step_increment = view_allocation.height * 0.1;
 621         vadj->page_increment = view_allocation.height * 0.9;
 622
 623         vadj->lower = 0;
 624
 625         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 626                 GtkRequisition child_requisition;
 627
 628                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 629                 full_height = child_requisition.height;
 630         } else {
 631                 full_height = 0;
 632         }
 633
 634         /* Get the real height of the embedded html */
 635         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 636                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 637                 full_height += html_vadj->upper;
 638         }
 639
 640         vadj->upper = MAX (view_allocation.height, full_height);
 641
 642         reclamp_adjustment (vadj, value_changed);
 643
 644 }
 645
 646 static void
 647 set_scroll_adjustments (ModestGtkhtmlMsgView *self,
 648                         GtkAdjustment *hadj,
 649                         GtkAdjustment *vadj)
 650 {
 651         set_hadjustment (self, hadj);
 652         set_vadjustment (self, vadj);
 653
 654 #ifndef MODEST_TOOLKIT_HILDON2
 655         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 656         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->body_view), vadj);
 657 #endif
 658 }
 659
 660 static void
 661 realize (GtkWidget *widget)
 662 {
 663         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 664         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 665         GtkAdjustment *hadj = get_hadjustment (self);
 666         GtkAdjustment *vadj = get_vadjustment (self);
 667         GdkWindowAttr attributes;
 668         gint event_mask;
 669         gint attributes_mask;
 670         GtkAllocation view_allocation;
 671
 672         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 673
 674         /* The structure of the GdkWindow's is:
 675          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 676          *    * view_window: a backing store gdkwindow containing the headers and contents
 677          *      being scrolled. This window should have all the visible and non visible
 678          *      widgets inside.
 679          *    * headers_window: gdk window for headers_box.
 680          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 681          *      body view showing the contents of the mail).
 682          */
 683
 684         attributes.x = widget->allocation.x;
 685         attributes.y = widget->allocation.y;
 686         attributes.width = widget->allocation.width;
 687         attributes.height = widget->allocation.height;
 688         attributes.window_type = GDK_WINDOW_CHILD;
 689         attributes.wclass = GDK_INPUT_OUTPUT;
 690         attributes.visual = gtk_widget_get_visual (widget);
 691         attributes.colormap = gtk_widget_get_colormap (widget);
 692
 693         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 694         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 695         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 696
 697         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 698                                          &attributes, attributes_mask);
 699         gdk_window_set_user_data (widget->window, self);
 700
 701         get_view_allocation (self, &view_allocation);
 702
 703         attributes.x = view_allocation.x;
 704         attributes.y = view_allocation.y;
 705         attributes.width = view_allocation.width;
 706         attributes.height = view_allocation.height;
 707         attributes.event_mask = 0;
 708         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 709         gdk_window_set_user_data (priv->view_window, self);
 710         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 711
 712         attributes.x = -hadj->value;
 713         attributes.y = -vadj->value;
 714         attributes.width = hadj->upper;
 715         if (priv->headers_box)
 716                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 717         else
 718                 attributes.height = 1;
 719         attributes.event_mask = event_mask;
 720
 721         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 722         gdk_window_set_user_data (priv->headers_window, self);
 723
 724         if (priv->headers_box)
 725                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 726
 727         attributes.x = -hadj->value;
 728         if (priv->headers_box)
 729                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 730         else
 731                 attributes.y = -vadj->value;
 732         attributes.width = hadj->upper;
 733         if (priv->headers_box)
 734                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 735         else
 736                 attributes.height = vadj->upper;
 737         attributes.event_mask = event_mask;
 738
 739         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 740         gdk_window_set_user_data (priv->html_window, self);
 741
 742         if (priv->html_scroll)
 743                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 744
 745         widget->style = gtk_style_attach (widget->style, widget->window);
 746         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 747         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 748         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 749
 750         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 751                            GTK_SHADOW_NONE,
 752                            NULL, widget, "msgviewheaders",
 753                            0,0,-1,-1);
 754         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 755                            GTK_SHADOW_NONE,
 756                            NULL, widget, "msgviewcontents",
 757                            0,0,-1,-1);
 758
 759         gdk_window_show (priv->view_window);
 760         gdk_window_show (priv->headers_window);
 761         gdk_window_show (priv->html_window);
 762
 763 }
 764
 765 static void
 766 unrealize (GtkWidget *widget)
 767 {
 768         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 769         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 770
 771         gdk_window_set_user_data (priv->view_window, NULL);
 772         gdk_window_destroy (priv->view_window);
 773         priv->view_window = NULL;
 774
 775         gdk_window_set_user_data (priv->headers_window, NULL);
 776         gdk_window_destroy (priv->headers_window);
 777         priv->headers_window = NULL;
 778
 779         gdk_window_set_user_data (priv->html_window, NULL);
 780         gdk_window_destroy (priv->html_window);
 781         priv->html_window = NULL;
 782
 783         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 784                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 785
 786 }
 787
 788 static gint
 789 expose (GtkWidget *widget,
 790         GdkEventExpose *event)
 791 {
 792         ModestGtkhtmlMsgView *self;
 793         ModestGtkhtmlMsgViewPrivate *priv;
 794
 795         if (GTK_WIDGET_DRAWABLE (widget)) {
 796                 self = MODEST_GTKHTML_MSG_VIEW (widget);
 797                 priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 798                 if (event->window == widget->window) {
 799                         gtk_paint_shadow (widget->style, widget->window,
 800                                           GTK_STATE_NORMAL, priv->shadow_type,
 801                                           &event->area, widget, "msgview",
 802                                           0,0,-1,-1);
 803                 } else if (event->window == priv->headers_window) {
 804                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 805                                            GTK_SHADOW_NONE,
 806                                            &event->area, widget, "msgviewheaders",
 807                                            0,0,-1,-1);
 808                 } else if (event->window == priv->html_window) {
 809                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 810                                            GTK_SHADOW_NONE,
 811                                            &event->area, widget, "msgviewcontents",
 812                                            0,0,-1,-1);
 813                 }
 814                 if (priv->headers_box)
 815                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->headers_box, event);
 816                 if (priv->html_scroll)
 817                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->html_scroll, event);
 818                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 819         }
 820
 821         return FALSE;
 822 }
 823
 824 static void
 825 forall (GtkContainer *container,
 826         gboolean include_internals,
 827         GtkCallback callback,
 828         gpointer userdata)
 829 {
 830         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 831         g_return_if_fail (callback != NULL);
 832
 833         if (priv->headers_box)
 834                 (*callback) (priv->headers_box, userdata);
 835         if (priv->html_scroll)
 836                 (*callback) (priv->html_scroll, userdata);
 837 }
 838
 839 static void
 840 container_remove (GtkContainer *container,
 841                   GtkWidget *widget)
 842 {
 843         gboolean was_visible = FALSE;
 844         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 845         was_visible = GTK_WIDGET_VISIBLE (widget);
 846         if (widget == priv->headers_box) {
 847                 gtk_widget_unparent (priv->headers_box);
 848                 priv->headers_box = NULL;
 849         } else if (widget == priv->html_scroll) {
 850                 gtk_widget_unparent (priv->html_scroll);
 851                 priv->html_scroll = NULL;
 852         } else {
 853                 return;
 854         }
 855         if (was_visible)
 856                 gtk_widget_queue_resize (GTK_WIDGET(container));
 857
 858 }
 859
 860 static void
 861 size_request (GtkWidget *widget,
 862               GtkRequisition *req)
 863 {
 864         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (widget);
 865         GtkRequisition child_req;
 866
 867         req->width = 0;
 868         req->height = 0;
 869
 870         gtk_widget_size_request (priv->headers_box, &child_req);
 871         req->width = child_req.width;
 872         req->height += child_req.height;
 873         gtk_widget_size_request (priv->html_scroll, &child_req);
 874         req->width = MAX (child_req.width, req->width);
 875         req->height += child_req.height;
 876
 877 }
 878
 879 static void
 880 size_allocate (GtkWidget *widget,
 881                GtkAllocation *allocation)
 882 {
 883         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 884         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 885         gboolean hadj_value_changed, vadj_value_changed;
 886         GtkAllocation headers_allocation, html_allocation, view_allocation;
 887         GtkAdjustment *html_vadj;
 888
 889         if (GTK_WIDGET_MAPPED (widget) &&
 890             priv->shadow_type != GTK_SHADOW_NONE &&
 891             (allocation->width != widget->allocation.width ||
 892              allocation->height != widget->allocation.height))
 893                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 894
 895         widget->allocation = *allocation;
 896         set_hadjustment_values (self, &hadj_value_changed);
 897         set_vadjustment_values (self, &vadj_value_changed);
 898
 899         get_view_allocation (self, &view_allocation);
 900
 901         headers_allocation.x = 0;
 902         headers_allocation.y = 0;
 903         headers_allocation.width = view_allocation.width;
 904         if (priv->headers_box)
 905                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 906         else
 907                 headers_allocation.height = 0;
 908
 909         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 910
 911         html_allocation.x = 0;
 912         html_allocation.y = headers_allocation.height;
 913         html_allocation.width = view_allocation.width;
 914         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 915
 916         if (GTK_WIDGET_REALIZED (widget)) {
 917                 gdk_window_move_resize (widget->window,
 918                                         allocation->x,
 919                                         allocation->y,
 920                                         allocation->width,
 921                                         allocation->height);
 922
 923                 gdk_window_move_resize (priv->view_window,
 924                                         view_allocation.x,
 925                                         view_allocation.y,
 926                                         view_allocation.width,
 927                                         view_allocation.height);
 928                 gdk_window_move_resize (priv->headers_window,
 929                                         0,
 930                                         (gint) (- priv->vadj->value),
 931                                         allocation->width,
 932                                         headers_allocation.height);
 933                 gdk_window_move_resize (priv->html_window,
 934                                         (gint) (- priv->hadj->value),
 935                                         (gint) (html_allocation.y - priv->vadj->value),
 936                                         (gint) priv->hadj->upper,
 937                                         html_allocation.height);
 938         }
 939
 940         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 941                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 942         }
 943         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 944                 html_allocation.x = 0;
 945                 html_allocation.y = 0;
 946                 html_allocation.width = (gint) priv->hadj->upper;
 947                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 948                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 949         }
 950         gtk_adjustment_changed (priv->hadj);
 951         gtk_adjustment_changed (priv->vadj);
 952
 953         if (hadj_value_changed)
 954                 gtk_adjustment_value_changed (priv->hadj);
 955         if (vadj_value_changed)
 956                 gtk_adjustment_value_changed (priv->vadj);
 957
 958 }
 959
 960 static void
 961 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 962 {
 963         ModestGtkhtmlMsgView *self = NULL;
 964         ModestGtkhtmlMsgViewPrivate *priv = NULL;
 965
 966         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 967         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (data));
 968
 969         self = MODEST_GTKHTML_MSG_VIEW (data);
 970         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 971
 972         if (GTK_WIDGET_REALIZED (self)) {
 973                 GtkAdjustment *hadj = get_hadjustment (self);
 974                 GtkAdjustment *vadj = get_vadjustment (self);
 975                 gint headers_offset = 0;
 976
 977                 gtk_widget_queue_resize (priv->html_scroll);
 978
 979                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 980                         gint old_x, old_y;
 981                         gint new_x, new_y;
 982                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 983                         new_x = 0;
 984                         new_y = -vadj->value;
 985
 986                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 987
 988                         if (new_x != old_x || new_y != old_y) {
 989                                 gdk_window_move (priv->headers_window, new_x, new_y);
 990                                 gdk_window_process_updates (priv->headers_window, TRUE);
 991                         }
 992                 }
 993
 994                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 995                         gint old_x, old_y;
 996                         gint new_x, new_y;
 997                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 998                         new_x = -hadj->value;
 999                         new_y = headers_offset - vadj->value;
1000
1001                         if (new_x != old_x || new_y != old_y) {
1002                                 gdk_window_move (priv->html_window, new_x, new_y);
1003                                 gdk_window_process_updates (priv->html_window, TRUE);
1004                         }
1005                 }
1006
1007         }
1008 }
1009
1010 static void
1011 html_adjustment_changed (GtkAdjustment *adj,
1012                          gpointer userdata)
1013 {
1014         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (userdata);
1015         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1016         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1017         gboolean vadj_changed;
1018         gint new_height;
1019
1020         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
1021
1022         priv->html_scroll->requisition.height = html_vadj->upper;
1023         if (html_vadj->upper == priv->html_scroll->allocation.height)
1024                 return;
1025         priv->html_scroll->allocation.height = html_vadj->upper;
1026
1027         set_vadjustment_values (self, &vadj_changed);
1028
1029         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
1030
1031         gtk_adjustment_changed (priv->vadj);
1032         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
1033                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
1034                 gdk_window_process_updates (priv->view_window, TRUE);
1035                 gtk_container_resize_children (GTK_CONTAINER (self));
1036         }
1037
1038 }
1039
1040 gboolean
1041 idle_readjust_scroll (ModestGtkhtmlMsgView *self)
1042 {
1043
1044         /* We're out the main lock */
1045         gdk_threads_enter ();
1046
1047         if (GTK_WIDGET_DRAWABLE (self)) {
1048                 ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1049                 GtkAdjustment *html_vadj;
1050                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1051                 html_vadj->page_size = html_vadj->upper;
1052                 gtk_adjustment_changed (html_vadj);
1053                 gtk_widget_queue_resize (GTK_WIDGET (self));
1054                 gtk_widget_queue_draw (GTK_WIDGET (self));
1055
1056                 /* Just another hack for making readjust really work. This forces an update
1057                  * of the scroll, and then, make the scroll really update properly the
1058                  * the size and not corrupt scrollable area */
1059                 gtk_adjustment_set_value (priv->vadj, 1.0);
1060                 gtk_adjustment_set_value (priv->vadj, 0.0);
1061         }
1062         g_object_unref (G_OBJECT (self));
1063
1064         gdk_threads_leave ();
1065
1066         return FALSE;
1067 }
1068
1069 static void
1070 modest_gtkhtml_msg_view_init (ModestGtkhtmlMsgView *obj)
1071 {
1072         ModestGtkhtmlMsgViewPrivate *priv;
1073         GtkAdjustment *html_vadj;
1074         GtkWidget *separator;
1075
1076         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
1077         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
1078         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
1079         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
1080
1081         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(obj);
1082
1083         priv->current_zoom = 1.0;
1084
1085         priv->hadj = NULL;
1086         priv->vadj = NULL;
1087         priv->shadow_type = GTK_SHADOW_IN;
1088         priv->view_window = NULL;
1089         priv->headers_window = NULL;
1090         priv->html_window = NULL;
1091
1092         priv->idle_motion_id = 0;
1093
1094         gtk_widget_push_composite_child ();
1095         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
1096         gtk_widget_set_composite_name (priv->html_scroll, "contents");
1097         gtk_widget_pop_composite_child ();
1098         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1099
1100         priv->msg                     = NULL;
1101
1102         priv->body_view                 = GTK_WIDGET (g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL));
1103 #ifdef MODEST_TOOLKIT_HILDON2
1104         priv->mail_header_view        = GTK_WIDGET(modest_compact_mail_header_view_new ());
1105 #else
1106         priv->mail_header_view        = GTK_WIDGET(modest_expander_mail_header_view_new (TRUE));
1107 #endif
1108         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1109         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
1110 #ifdef MODEST_TOOLKIT_HILDON2
1111         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1112                                            MODEST_ATTACHMENTS_VIEW_STYLE_LINKS);
1113 #else
1114         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1115                                            MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE);
1116 #endif
1117
1118         g_signal_connect (G_OBJECT(priv->body_view), "activate_link",
1119                                        G_CALLBACK(on_activate_link), obj);
1120         g_signal_connect (G_OBJECT(priv->body_view), "fetch_url",
1121                                        G_CALLBACK(on_fetch_url), obj);
1122         g_signal_connect (G_OBJECT(priv->body_view), "link_hover",
1123                                        G_CALLBACK(on_link_hover), obj);
1124 #ifdef MAEMO_CHANGES
1125         g_signal_connect (G_OBJECT(priv->body_view), "motion-notify-event",
1126                           G_CALLBACK (motion_notify_event), obj);
1127 #endif
1128         g_signal_connect (G_OBJECT (priv->body_view), "button-press-event",
1129                           G_CALLBACK (button_press_event), obj);
1130         g_signal_connect (G_OBJECT (priv->body_view), "button-release-event",
1131                           G_CALLBACK (button_release_event), obj);
1132
1133         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
1134                           G_CALLBACK (on_recpt_activated), obj);
1135         g_signal_connect (G_OBJECT (priv->mail_header_view), "show-details",
1136                           G_CALLBACK (on_show_details), obj);
1137
1138         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
1139                           G_CALLBACK (on_attachment_activated), obj);
1140
1141         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1142
1143         g_signal_connect (G_OBJECT (html_vadj), "changed",
1144                           G_CALLBACK (html_adjustment_changed), obj);
1145
1146         gtk_widget_push_composite_child ();
1147         priv->headers_box = gtk_vbox_new (FALSE, MODEST_MARGIN_DEFAULT);
1148         gtk_widget_set_composite_name (priv->headers_box, "headers");
1149         gtk_widget_pop_composite_child ();
1150
1151         if (priv->mail_header_view)
1152                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1153
1154 #ifdef MODEST_TOOLKIT_HILDON2
1155         priv->priority_icon = gtk_image_new ();
1156         gtk_misc_set_alignment (GTK_MISC (priv->priority_icon), 0.0, 0.5);
1157         if (priv->priority_icon) {
1158                 priv->priority_box = (GtkWidget *)
1159                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1160                                                                    _("mcen_me_editor_message_priority"),
1161                                                                    priv->priority_icon,
1162                                                                    FALSE, FALSE);
1163
1164                 gtk_widget_hide_all (priv->priority_box);
1165         }
1166 #endif
1167         if (priv->attachments_view) {
1168 #ifndef MODEST_TOOLKIT_HILDON2
1169                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1170 #else
1171                 gchar *att_label = g_strconcat (_("mail_va_attachment"), ":", NULL);
1172 #endif
1173
1174                 priv->attachments_box = (GtkWidget *)
1175                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1176                                                                    att_label,
1177                                                                    priv->attachments_view,
1178                                                                    FALSE, FALSE);
1179                 gtk_widget_hide_all (priv->attachments_box);
1180                 g_free (att_label);
1181         }
1182
1183         separator = gtk_hseparator_new ();
1184         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1185
1186         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (obj));
1187
1188         if (priv->body_view) {
1189                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->body_view);
1190                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(obj));
1191 #ifdef MAEMO_CHANGES
1192                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->body_view), NULL, NULL, 0);
1193                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1194                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold-query", G_CALLBACK (on_tap_and_hold_query), obj);
1195 #endif
1196         }
1197
1198 }
1199
1200
1201 static void
1202 modest_gtkhtml_msg_view_finalize (GObject *obj)
1203 {
1204         ModestGtkhtmlMsgViewPrivate *priv;
1205         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (obj);
1206
1207         if (priv->msg) {
1208                 g_object_unref (G_OBJECT(priv->msg));
1209                 priv->msg = NULL;
1210         }
1211
1212         if (priv->idle_motion_id > 0) {
1213                 g_source_remove (priv->idle_motion_id);
1214                 priv->idle_motion_id = 0;
1215         }
1216
1217         /* we cannot disconnect sigs, because priv->body_view is
1218          * already dead */
1219
1220         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1221         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1222
1223         priv->body_view = NULL;
1224         priv->attachments_view = NULL;
1225
1226         G_OBJECT_CLASS(parent_class)->finalize (obj);
1227 }
1228
1229 static void
1230 modest_gtkhtml_msg_view_destroy (GtkObject *obj)
1231 {
1232         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1233         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1234
1235         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
1236 }
1237
1238 /* INTERNAL METHODS */
1239
1240 #ifdef MAEMO_CHANGES
1241 static gboolean
1242 motion_notify_event (GtkWidget *widget,
1243                      GdkEventMotion *event,
1244                      gpointer userdata)
1245 {
1246         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1247
1248         /* Use panning information in gtkhtml widget to support also vertical panning */
1249
1250         if (GTK_HTML (widget)->panning) {
1251                 gint y, dy;
1252                 gdouble value;
1253
1254                 gdk_window_get_pointer (GTK_LAYOUT (widget)->bin_window, NULL, &y, NULL);
1255                 dy = y - GTK_HTML (widget)->lasty;
1256                 value = priv->vadj->value - (gdouble) dy;
1257
1258                 if (value < priv->vadj->lower)
1259                         value = priv->vadj->lower;
1260                 else if (value > priv->vadj->upper - priv->vadj->page_size)
1261                         value = priv->vadj->upper - priv->vadj->page_size;
1262                 gtk_adjustment_set_value (priv->vadj, value);
1263
1264         }
1265         return FALSE;
1266 }
1267 #endif
1268
1269 static gboolean
1270 idle_motion (gpointer userdata)
1271 {
1272         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1273         if (GTK_HTML (priv->body_view)->in_selection_drag) {
1274                 gdouble offset;
1275                 GtkAdjustment *adj;
1276                 gint gdk_y;
1277                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1278                 offset= (gdouble) (priv->headers_box->requisition.height + gdk_y);
1279                 adj = GTK_ADJUSTMENT (priv->vadj);
1280                 if (offset < adj->value + adj->step_increment) {
1281                         gtk_adjustment_set_value (adj, MAX (offset + adj->page_increment - adj->page_size, 0.0));
1282                 } else if (offset > adj->value + adj->page_increment) {
1283                         gtk_adjustment_set_value (adj, MIN (offset - adj->page_increment, adj->upper - adj->page_size));
1284                 }
1285                 gtk_widget_queue_resize (userdata);
1286         }
1287         return TRUE;
1288 }
1289
1290 static gboolean
1291 button_press_event (GtkWidget *widget,
1292                     GdkEventButton *event,
1293                     gpointer userdata)
1294 {
1295         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1296
1297         if (priv->idle_motion_id == 0) {
1298                 priv->idle_motion_id = g_timeout_add (200, idle_motion, userdata);
1299         }
1300         return FALSE;
1301 }
1302
1303 static gboolean
1304 button_release_event (GtkWidget *widget,
1305                       GdkEventButton *event,
1306                       gpointer userdata)
1307 {
1308         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1309
1310         if (priv->idle_motion_id > 0) {
1311                 gint gdk_y;
1312                 g_source_remove (priv->idle_motion_id);
1313
1314                 priv->idle_motion_id = 0;;
1315                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1316                 event->y = (gdouble) gdk_y;
1317         }
1318         return FALSE;
1319 }
1320
1321 static GtkAdjustment *
1322 get_vadjustment (ModestGtkhtmlMsgView *self)
1323 {
1324         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1325
1326         if (!priv->vadj)
1327                 set_vadjustment (self, NULL);
1328
1329         return priv->vadj;
1330
1331 }
1332
1333 static GtkAdjustment *
1334 get_hadjustment (ModestGtkhtmlMsgView *self)
1335 {
1336         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1337
1338         if (!priv->hadj)
1339                 set_hadjustment (self, NULL);
1340
1341         return priv->hadj;
1342
1343 }
1344
1345 static void
1346 set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj)
1347 {
1348         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1349         gboolean value_changed;
1350
1351         if (hadj && hadj == priv->hadj)
1352                 return;
1353
1354         if (!hadj)
1355                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
1356         disconnect_hadjustment (self);
1357         g_object_ref (G_OBJECT (hadj));
1358         gtk_object_sink (GTK_OBJECT (hadj));
1359         priv->hadj = hadj;
1360         set_hadjustment_values (self, &value_changed);
1361
1362         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1363                           self);
1364
1365         gtk_adjustment_changed (hadj);
1366         if (value_changed)
1367                 gtk_adjustment_value_changed (hadj);
1368         else
1369                 adjustment_value_changed (hadj, self);
1370
1371         g_object_notify (G_OBJECT (self), "hadjustment");
1372 }
1373
1374 static void
1375 set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj)
1376 {
1377         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1378         gboolean value_changed;
1379
1380         if (vadj && vadj == priv->vadj)
1381                 return;
1382
1383         if (!vadj)
1384                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1385         disconnect_vadjustment (self);
1386         g_object_ref (G_OBJECT (vadj));
1387         gtk_object_sink (GTK_OBJECT (vadj));
1388         priv->vadj = vadj;
1389         set_vadjustment_values (self, &value_changed);
1390
1391         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1392                           self);
1393
1394         gtk_adjustment_changed (vadj);
1395         if (value_changed)
1396                 gtk_adjustment_value_changed (vadj);
1397         else
1398                 adjustment_value_changed (vadj, self);
1399
1400         g_object_notify (G_OBJECT (self), "vadjustment");
1401 }
1402
1403 static void
1404 set_shadow_type (ModestGtkhtmlMsgView *self,
1405                  GtkShadowType shadow_type)
1406 {
1407         ModestGtkhtmlMsgViewPrivate *priv;
1408         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1409
1410         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1411
1412         if (priv->shadow_type != shadow_type) {
1413                 priv->shadow_type = shadow_type;
1414
1415                 if (GTK_WIDGET_VISIBLE (self)) {
1416                         gtk_widget_size_allocate (GTK_WIDGET (self), &(GTK_WIDGET (self)->allocation));
1417                         gtk_widget_queue_draw (GTK_WIDGET (self));
1418                 }
1419                 g_object_notify (G_OBJECT (self), "shadow-type");
1420         }
1421 }
1422
1423 static GtkShadowType
1424 get_shadow_type (ModestGtkhtmlMsgView *self)
1425 {
1426         ModestGtkhtmlMsgViewPrivate *priv;
1427         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), GTK_SHADOW_NONE);
1428         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1429
1430         return priv->shadow_type;
1431 }
1432
1433 GtkWidget*
1434 modest_msg_view_new (TnyMsg *msg)
1435 {
1436         GObject *obj;
1437         ModestGtkhtmlMsgView* self;
1438
1439         obj  = G_OBJECT(g_object_new(MODEST_TYPE_GTKHTML_MSG_VIEW, NULL));
1440         self = MODEST_GTKHTML_MSG_VIEW(obj);
1441         tny_msg_view_set_msg (TNY_MSG_VIEW (self), msg);
1442
1443         return GTK_WIDGET(self);
1444 }
1445
1446 #ifdef MAEMO_CHANGES
1447 static void
1448 on_tap_and_hold (GtkWidget *widget,
1449                  gpointer data)
1450 {
1451         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1452         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1453
1454         g_signal_emit_by_name (G_OBJECT (self), "link-contextual", priv->last_url);
1455 }
1456
1457 static gboolean
1458 on_tap_and_hold_query (GtkWidget *widget,
1459                        GdkEvent *event,
1460                        gpointer data)
1461 {
1462         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1463         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1464
1465         /* Don't show the tap and hold animation if no url below */
1466         return (priv->last_url == NULL);
1467 }
1468 #endif
1469
1470 static void
1471 on_recpt_activated (ModestMailHeaderView *header_view,
1472                     const gchar *address,
1473                     ModestGtkhtmlMsgView *self)
1474 {
1475         g_signal_emit_by_name (G_OBJECT (self), "recpt-activated", address);
1476 }
1477
1478 static void
1479 on_show_details (ModestMailHeaderView *header_view,
1480                  ModestGtkhtmlMsgView *self)
1481 {
1482         g_signal_emit_by_name (G_OBJECT (self), "show-details");
1483 }
1484
1485 static void
1486 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer self)
1487 {
1488
1489         g_signal_emit_by_name (G_OBJECT(self), "attachment_clicked", mime_part);
1490 }
1491
1492 static void
1493 request_fetch_images (ModestGtkhtmlMsgView *self)
1494 {
1495         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1496         TnyMimePart *part;
1497
1498         /* The message could have not been downloaded yet */
1499         if (priv->msg) {
1500                 modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), TRUE);
1501                 part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (priv->body_view));
1502                 if (part) {
1503                         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), part);
1504                         g_object_unref (part);
1505                 }
1506                 tny_msg_set_allow_external_images (TNY_MSG (priv->msg), TRUE);
1507         }
1508 }
1509
1510 static gboolean
1511 has_blocked_external_images (ModestGtkhtmlMsgView *self)
1512 {
1513         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1514
1515         return (modest_mime_part_view_has_external_images (MODEST_MIME_PART_VIEW (priv->body_view)) &&
1516                 !modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view)));
1517 }
1518
1519 static gboolean
1520 on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1521 {
1522         gboolean result;
1523         g_return_val_if_fail (self, FALSE);
1524
1525         g_signal_emit_by_name (G_OBJECT(self), "activate-link", uri, &result);
1526
1527         return result;
1528 }
1529
1530
1531 static gboolean
1532 on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1533 {
1534         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1535         gboolean result;
1536
1537         g_free (priv->last_url);
1538         priv->last_url = g_strdup (uri);
1539
1540         g_signal_emit_by_name (G_OBJECT(self), "link-hover", uri, &result);
1541
1542         return result;
1543 }
1544
1545
1546
1547 static TnyMimePart *
1548 find_cid_image (TnyMsg *msg, const gchar *cid)
1549 {
1550         TnyMimePart *part = NULL;
1551         TnyList *parts;
1552         TnyIterator *iter;
1553
1554         g_return_val_if_fail (msg, NULL);
1555         g_return_val_if_fail (cid, NULL);
1556
1557         parts  = TNY_LIST (tny_simple_list_new());
1558
1559         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1560         iter   = tny_list_create_iterator (parts);
1561
1562         while (!tny_iterator_is_done(iter)) {
1563                 const gchar *part_cid;
1564
1565                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1566                 part_cid = tny_mime_part_get_content_id (part);
1567
1568                 /* if there is no content id, try the content location;
1569                  * this is what Outlook seems to use when it converts
1570                  * it's internal richtext to html
1571                  */
1572                 if (!part_cid)
1573                         part_cid = tny_mime_part_get_content_location (part);
1574
1575                 if (part_cid && strcmp (cid, part_cid) == 0)
1576                         break;
1577
1578                 if (tny_mime_part_content_type_is (part, "multipart/related")) {
1579                         TnyList *related_parts = TNY_LIST (tny_simple_list_new ());
1580                         TnyIterator *related_iter = NULL;
1581                         TnyMimePart *related_part = NULL;
1582
1583                         tny_mime_part_get_parts (part, related_parts);
1584                         related_iter = tny_list_create_iterator (related_parts);
1585
1586                         while (!tny_iterator_is_done (related_iter)) {
1587                                 related_part = TNY_MIME_PART (tny_iterator_get_current (related_iter));
1588                                 part_cid = tny_mime_part_get_content_id (related_part);
1589                                 if (part_cid && strcmp (cid, part_cid) == 0) {
1590                                         break;
1591                                 }
1592                                 g_object_unref (related_part);
1593                                 related_part = NULL;
1594                                 tny_iterator_next (related_iter);
1595                         }
1596
1597                         g_object_unref (related_iter);
1598                         g_object_unref (related_parts);
1599                         if (related_part != NULL) {
1600                                 g_object_unref (part);
1601                                 part = related_part;
1602                                 break;
1603                         }
1604                 }
1605
1606                 g_object_unref (G_OBJECT(part));
1607
1608                 part = NULL;
1609                 tny_iterator_next (iter);
1610         }
1611
1612         g_object_unref (G_OBJECT(iter));
1613         g_object_unref (G_OBJECT(parts));
1614
1615         return part;
1616 }
1617
1618
1619 static gboolean
1620 on_fetch_url (GtkWidget *widget, const gchar *uri,
1621               TnyStream *stream, ModestGtkhtmlMsgView *self)
1622 {
1623         ModestGtkhtmlMsgViewPrivate *priv;
1624         const gchar* my_uri;
1625         TnyMimePart *part = NULL;
1626
1627
1628
1629         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1630
1631         /*
1632          * we search for either something starting with cid:, or something
1633          * with no prefix at all; this latter case occurs when sending mails
1634          * with MS Outlook in rich-text mode, and 'attach-as-object
1635          */
1636         if (g_str_has_prefix (uri, "cid:"))
1637                 my_uri = uri + 4;  /* +4 ==> skip "cid:" */
1638         else
1639                 my_uri = uri;
1640
1641         /* now try to find the embedded image */
1642         part = find_cid_image (priv->msg, my_uri);
1643
1644         if (!part) {
1645                 if (g_str_has_prefix (uri, "http:")) {
1646                         if (modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view))) {
1647                                 gboolean result = FALSE;
1648                                 g_signal_emit_by_name (self, "fetch-image", uri, stream, &result);
1649                                 return result;
1650                         } else {
1651                                 /* we return immediately to get a "image not found" icon */
1652                                 tny_stream_close (stream);
1653                                 return TRUE;
1654                         }
1655                 } else {
1656                         return FALSE;
1657                 }
1658         }
1659
1660         tny_mime_part_decode_to_stream ((TnyMimePart*)part, stream, NULL);
1661         tny_stream_close (stream);
1662         g_object_unref (G_OBJECT(part));
1663         return TRUE;
1664 }
1665
1666 static void
1667 set_message (ModestGtkhtmlMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
1668 {
1669         TnyMimePart *body;
1670         ModestGtkhtmlMsgViewPrivate *priv;
1671         TnyHeader *header;
1672         GtkAdjustment *html_vadj;
1673
1674         g_return_if_fail (self);
1675
1676         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1677         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), FALSE);
1678         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1679         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1680
1681         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1682         html_vadj->upper = 0;
1683         html_vadj->page_size = 0;
1684         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1685
1686
1687         if (msg != priv->msg) {
1688                 if (priv->msg)
1689                         g_object_unref (G_OBJECT(priv->msg));
1690                 if (msg)
1691                         g_object_ref   (G_OBJECT(msg));
1692                 priv->msg = msg;
1693         }
1694
1695         if (!msg) {
1696                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1697                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1698                 gtk_widget_hide_all (priv->mail_header_view);
1699                 gtk_widget_hide_all (priv->attachments_box);
1700 #ifdef MODEST_TOOKIT_HILDON2
1701                 gtk_widget_hide_all (priv->priority_box);
1702 #endif
1703                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1704                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1705                 gtk_widget_queue_resize (GTK_WIDGET(self));
1706                 gtk_widget_queue_draw (GTK_WIDGET(self));
1707                 return;
1708         }
1709
1710         header = tny_msg_get_header (msg);
1711         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1712         g_object_unref (header);
1713
1714         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1715                                              other_body?NULL:msg);
1716
1717         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), tny_msg_get_allow_external_images (msg));
1718
1719         if (other_body) {
1720                 body = other_body;
1721                 g_object_ref (body);
1722         } else {
1723                 body = modest_tny_msg_find_body_part (msg, TRUE);
1724         }
1725         if (body) {
1726                 ModestAttachmentsView *widget;
1727
1728                 tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), body);
1729                 g_object_unref (body);
1730                 widget = MODEST_ATTACHMENTS_VIEW (priv->attachments_view);
1731
1732                 if (modest_attachments_view_has_attachments (widget)) {
1733                         GtkLabel *label;
1734                         GList *children = NULL;
1735                         gchar *text = NULL;
1736                         /* Ugly but... */
1737                         children = gtk_container_get_children (GTK_CONTAINER (priv->attachments_box));
1738                         label = GTK_LABEL (children->data);
1739                         gtk_widget_show_all (priv->attachments_box);
1740                         if (modest_attachments_view_get_num_attachments (widget) > 1) {
1741                                 text = _("mail_va_attachments");
1742                         } else {
1743                                 text = _("mail_va_attachment");
1744                         }
1745                         gtk_label_set_text (label, text);
1746                 } else {
1747                         gtk_widget_hide_all (priv->attachments_box);
1748                 }
1749
1750         } else {
1751                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1752         }
1753
1754         /* Refresh priority */
1755         set_priority (self, tny_header_get_flags (header));
1756
1757         gtk_widget_show (priv->body_view);
1758 #ifdef MODEST_TOOLKIT_HILDON2
1759         gtk_widget_set_no_show_all (priv->priority_box, TRUE);
1760 #endif
1761         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1762         gtk_widget_show_all (priv->mail_header_view);
1763         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1764 #ifdef MODEST_TOOLKIT_HILDON2
1765         gtk_widget_set_no_show_all (priv->priority_box, FALSE);
1766 #endif
1767         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1768         gtk_widget_queue_resize (GTK_WIDGET(self));
1769         gtk_widget_queue_draw (GTK_WIDGET(self));
1770
1771         if (priv->hadj != NULL)
1772                 priv->hadj->value = 0.0;
1773         if (priv->vadj != NULL)
1774                 priv->vadj->value = 0.0;
1775
1776         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1777
1778         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1779          * makes the html view get the proper and expected size and prevent being able to scroll
1780          * the buffer when it shouldn't be scrollable */
1781         g_object_ref (self);
1782         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1783 }
1784
1785 static void
1786 set_header (ModestGtkhtmlMsgView *self, TnyHeader *header)
1787 {
1788         ModestGtkhtmlMsgViewPrivate *priv;
1789         GtkAdjustment *html_vadj;
1790
1791         g_return_if_fail (self);
1792
1793         if (header == NULL) {
1794                 set_message (self, NULL, NULL);
1795                 return;
1796         }
1797
1798         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1799         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), TRUE);
1800         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1801         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1802
1803         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1804         html_vadj->upper = 0;
1805         html_vadj->page_size = 0;
1806         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1807
1808
1809         if (priv->msg) {
1810                 g_object_unref (G_OBJECT(priv->msg));
1811         }
1812         priv->msg = NULL;
1813
1814         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1815         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1816         gtk_widget_show_all (priv->mail_header_view);
1817         gtk_widget_hide_all (priv->attachments_box);
1818 #ifdef MODEST_TOOLKIT_HILDON2
1819         gtk_widget_hide_all (priv->priority_box);
1820 #endif
1821         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1822         tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1823         gtk_widget_queue_resize (GTK_WIDGET(self));
1824         gtk_widget_queue_draw (GTK_WIDGET(self));
1825 }
1826
1827
1828 static TnyMsg*
1829 get_message (ModestGtkhtmlMsgView *self)
1830 {
1831         TnyMsg *msg;
1832
1833         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1834
1835         msg = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self)->msg;
1836
1837         if (msg)
1838                 g_object_ref (msg);
1839
1840         return msg;
1841 }
1842
1843 static gboolean
1844 is_empty (ModestGtkhtmlMsgView *self)
1845 {
1846         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1847
1848         return modest_mime_part_view_is_empty (MODEST_MIME_PART_VIEW (priv->body_view));
1849 }
1850
1851 static void
1852 set_zoom (ModestGtkhtmlMsgView *self, gdouble zoom)
1853 {
1854         ModestGtkhtmlMsgViewPrivate *priv;
1855
1856         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1857         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1858
1859         modest_zoomable_set_zoom (MODEST_ZOOMABLE(priv->body_view), zoom);
1860
1861         gtk_widget_queue_resize (priv->body_view);
1862 }
1863
1864 static gdouble
1865 get_zoom (ModestGtkhtmlMsgView *self)
1866 {
1867         ModestGtkhtmlMsgViewPrivate *priv;
1868
1869         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 1.0);
1870         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1871
1872         return modest_zoomable_get_zoom (MODEST_ZOOMABLE (priv->body_view));
1873 }
1874
1875 static TnyHeaderFlags
1876 get_priority (ModestGtkhtmlMsgView *self)
1877 {
1878         ModestGtkhtmlMsgViewPrivate *priv;
1879
1880         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 0);
1881
1882         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1883
1884         return modest_mail_header_view_get_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view));
1885 }
1886
1887 static void
1888 set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags)
1889 {
1890         ModestGtkhtmlMsgViewPrivate *priv;
1891
1892         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1893         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1894
1895         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1896
1897 #ifdef MODEST_TOOLKIT_HILDON2
1898         gboolean show_priority = FALSE;
1899         TnyHeaderFlags priority_flags;
1900
1901         priority_flags = flags & TNY_HEADER_FLAG_PRIORITY_MASK;
1902         if (priority_flags == TNY_HEADER_FLAG_HIGH_PRIORITY) {
1903                 show_priority = TRUE;
1904                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_HIGH, GTK_ICON_SIZE_MENU);
1905         } else if (priority_flags == TNY_HEADER_FLAG_LOW_PRIORITY) {
1906                 show_priority = TRUE;
1907                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_LOW, GTK_ICON_SIZE_MENU);
1908         }
1909
1910         if (show_priority && MODEST_IS_COMPACT_MAIL_HEADER_VIEW (priv->mail_header_view)) {
1911                 gtk_widget_show_all  (priv->priority_box);
1912         } else {
1913                 gtk_widget_hide_all (priv->priority_box);
1914         }
1915 #endif
1916
1917 }
1918
1919 /* INCREMENTAL SEARCH IMPLEMENTATION */
1920
1921 static gboolean
1922 search (ModestGtkhtmlMsgView *self, const gchar *search)
1923 {
1924         ModestGtkhtmlMsgViewPrivate *priv;
1925         gboolean result;
1926         GtkAdjustment *vadj, *tmp_vadj;
1927         gdouble y_offset;
1928
1929         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1930
1931         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1932         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->body_view));
1933         g_object_ref (vadj);
1934         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1935         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), tmp_vadj);
1936         result = modest_isearch_view_search (MODEST_ISEARCH_VIEW (priv->body_view),
1937                                              search);
1938
1939         if (result) {
1940                 gint x, y, w, h;
1941                 gdouble offset_top, offset_bottom;
1942                 GtkAdjustment *adj;
1943                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1944                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1945                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1946                         adj = GTK_ADJUSTMENT (priv->vadj);
1947                         if (offset_top < adj->value)
1948                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1949                         else if (offset_bottom > adj->value + adj->page_increment)
1950                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1951                 }
1952         }
1953
1954         y_offset = tmp_vadj->value;
1955         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), vadj);
1956         g_object_unref (vadj);
1957
1958         return result;
1959 }
1960
1961 static gboolean
1962 search_next (ModestGtkhtmlMsgView *self)
1963 {
1964         ModestGtkhtmlMsgViewPrivate *priv;
1965         gboolean result;
1966
1967         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1968
1969         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1970         result = modest_isearch_view_search_next (MODEST_ISEARCH_VIEW (priv->body_view));
1971
1972         if (result) {
1973                 gint x, y, w, h;
1974                 gdouble offset_top, offset_bottom;
1975                 GtkAdjustment *adj;
1976
1977                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1978                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1979                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1980                         adj = GTK_ADJUSTMENT (priv->vadj);
1981                         if (offset_top < adj->value)
1982                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1983                         else if (offset_bottom > adj->value + adj->page_increment)
1984                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1985                 }
1986         }
1987         return result;
1988 }
1989
1990 static TnyList *
1991 get_selected_attachments (ModestGtkhtmlMsgView *self)
1992 {
1993         ModestGtkhtmlMsgViewPrivate *priv;
1994
1995         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1996         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1997
1998         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1999
2000 }
2001
2002 static TnyList *
2003 get_attachments (ModestGtkhtmlMsgView *self)
2004 {
2005         ModestGtkhtmlMsgViewPrivate *priv;
2006
2007         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
2008         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2009
2010         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
2011
2012 }
2013
2014 static void
2015 grab_focus (ModestGtkhtmlMsgView *self)
2016 {
2017         ModestGtkhtmlMsgViewPrivate *priv = NULL;
2018
2019         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
2020         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2021
2022         gtk_widget_grab_focus (priv->body_view);
2023 }
2024
2025 static void
2026 remove_attachment (ModestGtkhtmlMsgView *self, TnyMimePart *attachment)
2027 {
2028         ModestGtkhtmlMsgViewPrivate *priv;
2029
2030         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
2031         g_return_if_fail (TNY_IS_MIME_PART (attachment));
2032         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2033
2034         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
2035                                                    attachment);
2036
2037 }
2038
2039 /* TNY HEADER VIEW IMPLEMENTATION */
2040
2041 static void
2042 tny_header_view_init (gpointer g, gpointer iface_data)
2043 {
2044         TnyHeaderViewIface *klass = (TnyHeaderViewIface *)g;
2045
2046         klass->set_header = modest_msg_view_set_header;
2047         klass->clear = modest_msg_view_clear_header;
2048
2049         return;
2050 }
2051
2052 static void
2053 modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header)
2054 {
2055         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_header_func (self, header);
2056 }
2057
2058
2059 static void
2060 modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header)
2061 {
2062         set_header (MODEST_GTKHTML_MSG_VIEW (self), header);
2063 }
2064
2065 static void
2066 modest_msg_view_clear_header (TnyHeaderView *self)
2067 {
2068         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_header_func (self);
2069 }
2070
2071
2072 static void
2073 modest_msg_view_clear_header_default (TnyHeaderView *self)
2074 {
2075         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL, NULL);
2076 }
2077
2078 /* TNY MSG IMPLEMENTATION */
2079
2080 static void
2081 tny_msg_view_init (gpointer g, gpointer iface_data)
2082 {
2083         TnyMsgViewIface *klass = (TnyMsgViewIface *)g;
2084
2085         klass->get_msg = modest_msg_view_get_msg;
2086         klass->set_msg = modest_msg_view_set_msg;
2087         klass->set_unavailable = modest_msg_view_set_unavailable;
2088         klass->clear = modest_msg_view_clear;
2089         klass->create_mime_part_view_for = modest_msg_view_create_mime_part_view_for;
2090         klass->create_new_inline_viewer = modest_msg_view_create_new_inline_viewer;
2091
2092         return;
2093 }
2094
2095 static TnyMsg *
2096 modest_msg_view_get_msg (TnyMsgView *self)
2097 {
2098         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_msg_func (self);
2099 }
2100
2101 static TnyMsg *
2102 modest_msg_view_get_msg_default (TnyMsgView *self)
2103 {
2104         return TNY_MSG (tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (self)));
2105 }
2106
2107 static void
2108 modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg)
2109 {
2110         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_func (self, msg);
2111 }
2112
2113 static void
2114 modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg)
2115 {
2116
2117         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (self), TNY_MIME_PART (msg));
2118
2119         return;
2120 }
2121
2122 static void
2123 modest_msg_view_set_unavailable (TnyMsgView *self)
2124 {
2125         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_unavailable_func (self);
2126 }
2127
2128 static void
2129 modest_msg_view_set_unavailable_default (TnyMsgView *self)
2130 {
2131         tny_msg_view_clear (self);
2132
2133         return;
2134 }
2135
2136 static void
2137 modest_msg_view_clear (TnyMsgView *self)
2138 {
2139         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_func (self);
2140 }
2141
2142 static void
2143 modest_msg_view_clear_default (TnyMsgView *self)
2144 {
2145         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL, NULL);
2146 }
2147
2148 static TnyMimePartView*
2149 modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part)
2150 {
2151         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_mime_part_view_for_func (self, part);
2152 }
2153
2154 static TnyMimePartView*
2155 modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part)
2156 {
2157         g_warning ("modest_msg_view_create_mime_part_view_for_default is not implemented");
2158         return NULL;
2159 }
2160
2161 static TnyMsgView*
2162 modest_msg_view_create_new_inline_viewer (TnyMsgView *self)
2163 {
2164         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_new_inline_viewer_func (self);
2165 }
2166
2167 static TnyMsgView*
2168 modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self)
2169 {
2170         g_warning ("modest_msg_view_create_new_inline_viewer_default is not implemented");
2171
2172         return NULL;
2173 }
2174
2175 /* TNY MIME PART IMPLEMENTATION */
2176
2177 static void
2178 tny_mime_part_view_init (gpointer g, gpointer iface_data)
2179 {
2180         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
2181
2182         klass->get_part = modest_msg_view_mp_get_part;
2183         klass->set_part = modest_msg_view_mp_set_part;
2184         klass->clear = modest_msg_view_mp_clear;
2185
2186         return;
2187 }
2188
2189 static TnyMimePart*
2190 modest_msg_view_mp_get_part (TnyMimePartView *self)
2191 {
2192         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_part_func (self);
2193 }
2194
2195
2196 static TnyMimePart*
2197 modest_msg_view_mp_get_part_default (TnyMimePartView *self)
2198 {
2199         return TNY_MIME_PART (get_message (MODEST_GTKHTML_MSG_VIEW (self)));
2200 }
2201
2202 static void
2203 modest_msg_view_mp_set_part (TnyMimePartView *self,
2204                              TnyMimePart *part)
2205 {
2206         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_part_func (self, part);
2207 }
2208
2209 static void
2210 modest_msg_view_mp_set_part_default (TnyMimePartView *self,
2211                                      TnyMimePart *part)
2212 {
2213         g_return_if_fail ((part == NULL) || TNY_IS_MSG (part));
2214
2215         set_message (MODEST_GTKHTML_MSG_VIEW (self), TNY_MSG (part), NULL);
2216 }
2217
2218 static void
2219 modest_msg_view_mp_clear (TnyMimePartView *self)
2220 {
2221         tny_msg_view_clear (TNY_MSG_VIEW (self));
2222 }
2223
2224 /* MODEST MIME PART VIEW IMPLEMENTATION */
2225
2226 static void
2227 modest_mime_part_view_init (gpointer g, gpointer iface_data)
2228 {
2229         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
2230
2231         klass->is_empty_func = modest_msg_view_mp_is_empty;
2232
2233         return;
2234 }
2235
2236 static gboolean
2237 modest_msg_view_mp_is_empty (ModestMimePartView *self)
2238 {
2239         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->is_empty_func (self);
2240 }
2241
2242 static gboolean
2243 modest_msg_view_mp_is_empty_default (ModestMimePartView *self)
2244 {
2245         return is_empty (MODEST_GTKHTML_MSG_VIEW (self));
2246 }
2247
2248 /* MODEST ZOOMABLE IMPLEMENTATION */
2249 static void
2250 modest_zoomable_init (gpointer g, gpointer iface_data)
2251 {
2252         ModestZoomableIface *klass = (ModestZoomableIface *)g;
2253
2254         klass->get_zoom_func = modest_msg_view_get_zoom;
2255         klass->set_zoom_func = modest_msg_view_set_zoom;
2256         klass->zoom_minus_func = modest_msg_view_zoom_minus;
2257         klass->zoom_plus_func = modest_msg_view_zoom_plus;
2258
2259         return;
2260 }
2261
2262 static gdouble
2263 modest_msg_view_get_zoom (ModestZoomable *self)
2264 {
2265         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_zoom_func (self);
2266 }
2267
2268 static gdouble
2269 modest_msg_view_get_zoom_default (ModestZoomable *self)
2270 {
2271         return get_zoom (MODEST_GTKHTML_MSG_VIEW (self));
2272 }
2273
2274 static void
2275 modest_msg_view_set_zoom (ModestZoomable *self, gdouble value)
2276 {
2277         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
2278 }
2279
2280 static void
2281 modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value)
2282 {
2283         set_zoom (MODEST_GTKHTML_MSG_VIEW (self), value);
2284 }
2285
2286 static gboolean
2287 modest_msg_view_zoom_minus (ModestZoomable *self)
2288 {
2289         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_minus_func (self);
2290 }
2291
2292 static gboolean
2293 modest_msg_view_zoom_minus_default (ModestZoomable *self)
2294 {
2295         /* operation not supported in ModestMsgView */
2296         return FALSE;
2297 }
2298
2299 static gboolean
2300 modest_msg_view_zoom_plus (ModestZoomable *self)
2301 {
2302         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_plus_func (self);
2303 }
2304
2305 static gboolean
2306 modest_msg_view_zoom_plus_default (ModestZoomable *self)
2307 {
2308         /* operation not supported in ModestMsgView */
2309         return FALSE;
2310 }
2311
2312 /* MODEST ISEARCH VIEW IMPLEMENTATION */
2313 static void
2314 modest_isearch_view_init (gpointer g, gpointer iface_data)
2315 {
2316         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
2317
2318         klass->search_func = modest_msg_view_search;
2319         klass->search_next_func = modest_msg_view_search_next;
2320
2321         return;
2322 }
2323
2324 static gboolean
2325 modest_msg_view_search (ModestISearchView *self, const gchar *string)
2326 {
2327         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_func (self, string);
2328 }
2329
2330 static gboolean
2331 modest_msg_view_search_default (ModestISearchView *self, const gchar *string)
2332 {
2333         return search (MODEST_GTKHTML_MSG_VIEW (self), string);
2334 }
2335
2336 static gboolean
2337 modest_msg_view_search_next (ModestISearchView *self)
2338 {
2339         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_next_func (self);
2340 }
2341
2342 static gboolean
2343 modest_msg_view_search_next_default (ModestISearchView *self)
2344 {
2345         return search_next (MODEST_GTKHTML_MSG_VIEW (self));
2346 }
2347
2348 /* MODEST MSG VIEW IMPLEMENTATION */
2349 static void
2350 modest_msg_view_init (gpointer g, gpointer iface_data)
2351 {
2352         ModestMsgViewIface *klass = (ModestMsgViewIface *)g;
2353
2354         klass->set_msg_with_other_body_func = modest_gtkhtml_msg_view_set_msg_with_other_body;
2355         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment;
2356         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment;
2357         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment;
2358         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment;
2359         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type;
2360         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type;
2361         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority;
2362         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority;
2363         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments;
2364         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments;
2365         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus;
2366         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment;
2367         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images;
2368         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images;
2369
2370         return;
2371 }
2372
2373 static void
2374 modest_gtkhtml_msg_view_set_msg_with_other_body (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
2375 {
2376         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_with_other_body_func (self, msg, other_body);
2377 }
2378
2379 static void
2380 modest_gtkhtml_msg_view_set_msg_with_other_body_default (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
2381 {
2382         set_message (MODEST_GTKHTML_MSG_VIEW (self), msg, other_body);
2383 }
2384
2385 static GtkAdjustment*
2386 modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self)
2387 {
2388         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_vadjustment_func (self);
2389 }
2390
2391 static GtkAdjustment*
2392 modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self)
2393 {
2394         return get_vadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2395 }
2396
2397 static GtkAdjustment*
2398 modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self)
2399 {
2400         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_hadjustment_func (self);
2401 }
2402
2403 static GtkAdjustment*
2404 modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self)
2405 {
2406         return get_hadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2407 }
2408
2409 static void
2410 modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *adj)
2411 {
2412         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_vadjustment_func (self, adj);
2413 }
2414
2415 static void
2416 modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2417 {
2418         set_vadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2419 }
2420
2421 static void
2422 modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *adj)
2423 {
2424         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_hadjustment_func (self, adj);
2425 }
2426
2427 static void
2428 modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2429 {
2430         set_hadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2431 }
2432
2433 static void
2434 modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type)
2435 {
2436         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_shadow_type_func (self, type);
2437 }
2438
2439 static void
2440 modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type)
2441 {
2442         set_shadow_type (MODEST_GTKHTML_MSG_VIEW (self), type);
2443 }
2444
2445 static GtkShadowType
2446 modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self)
2447 {
2448         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_shadow_type_func (self);
2449 }
2450
2451 static GtkShadowType
2452 modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self)
2453 {
2454         return get_shadow_type (MODEST_GTKHTML_MSG_VIEW (self));
2455 }
2456
2457 static void
2458 modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
2459 {
2460         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_priority_func (self, flags);
2461 }
2462
2463 static void
2464 modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags)
2465 {
2466         set_priority (MODEST_GTKHTML_MSG_VIEW (self), flags);
2467 }
2468
2469 static TnyHeaderFlags
2470 modest_gtkhtml_msg_view_get_priority (ModestMsgView *self)
2471 {
2472         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_priority_func (self);
2473 }
2474
2475 static TnyHeaderFlags
2476 modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self)
2477 {
2478         return get_priority (MODEST_GTKHTML_MSG_VIEW (self));
2479 }
2480
2481 static TnyList*
2482 modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self)
2483 {
2484         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_selected_attachments_func (self);
2485 }
2486
2487 static TnyList*
2488 modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self)
2489 {
2490         return get_selected_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2491 }
2492
2493 static TnyList*
2494 modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self)
2495 {
2496         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_attachments_func (self);
2497 }
2498
2499 static TnyList*
2500 modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self)
2501 {
2502         return get_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2503 }
2504
2505 static void
2506 modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self)
2507 {
2508         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->grab_focus_func (self);
2509 }
2510
2511 static void
2512 modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self)
2513 {
2514         grab_focus (MODEST_GTKHTML_MSG_VIEW (self));
2515 }
2516
2517 static void
2518 modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *self, TnyMimePart *attachment)
2519 {
2520         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->remove_attachment_func (self, attachment);
2521 }
2522
2523 static void
2524 modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *self, TnyMimePart *attachment)
2525 {
2526         remove_attachment (MODEST_GTKHTML_MSG_VIEW (self), attachment);
2527 }
2528
2529 static void
2530 modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *self)
2531 {
2532         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->request_fetch_images_func (self);
2533 }
2534
2535 static void
2536 modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *self)
2537 {
2538         request_fetch_images (MODEST_GTKHTML_MSG_VIEW (self));
2539 }
2540
2541 static gboolean
2542 modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *self)
2543 {
2544         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->has_blocked_external_images_func (self);
2545 }
2546
2547 static gboolean
2548 modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *self)
2549 {
2550         return has_blocked_external_images (MODEST_GTKHTML_MSG_VIEW (self));
2551 }