git.maemo.org Git - modest/blob - src/widgets/modest-mozembed-mime-part-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 <widgets/modest-mozembed-mime-part-view.h>
  31 #include <string.h>
  32 #include <tny-stream.h>
  33 #include <tny-mime-part-view.h>
  34 #include <tny-gtk-text-buffer-stream.h>
  35 #include <tny-moz-embed-html-mime-part-view.h>
  36 #include <modest-text-utils.h>
  37 #include <widgets/modest-mime-part-view.h>
  38 #include <widgets/modest-zoomable.h>
  39
  40 /* gobject structure methods */
  41 static void    modest_mozembed_mime_part_view_class_init (ModestMozembedMimePartViewClass *klass);
  42 static void    modest_mime_part_view_init               (gpointer g, gpointer iface_data);
  43 static void    modest_zoomable_init                     (gpointer g, gpointer iface_data);
  44 static void    modest_isearch_view_init                 (gpointer g, gpointer iface_data);
  45 static void    modest_mozembed_mime_part_view_init       (ModestMozembedMimePartView *self);
  46 static void    modest_mozembed_mime_part_view_finalize   (GObject *self);
  47
  48 /* ModestMimePartView implementation */
  49 static gboolean modest_mozembed_mime_part_view_is_empty (ModestMimePartView *self);
  50 static gboolean modest_mozembed_mime_part_view_is_empty_default (ModestMimePartView *self);
  51 /* ModestZoomable implementation */
  52 static gdouble modest_mozembed_mime_part_view_get_zoom (ModestZoomable *self);
  53 static void modest_mozembed_mime_part_view_set_zoom (ModestZoomable *self, gdouble value);
  54 static gboolean modest_mozembed_mime_part_view_zoom_minus (ModestZoomable *self);
  55 static gboolean modest_mozembed_mime_part_view_zoom_plus (ModestZoomable *self);
  56 static gdouble modest_mozembed_mime_part_view_get_zoom_default (ModestZoomable *self);
  57 static void modest_mozembed_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value);
  58 static gboolean modest_mozembed_mime_part_view_zoom_minus_default (ModestZoomable *self);
  59 static gboolean modest_mozembed_mime_part_view_zoom_plus_default (ModestZoomable *self);
  60 /* ModestISearchView implementation */
  61 static gboolean modest_mozembed_mime_part_view_search                    (ModestISearchView *self, const gchar *string);
  62 static gboolean modest_mozembed_mime_part_view_search_next               (ModestISearchView *self);
  63 static gboolean modest_mozembed_mime_part_view_get_selection_area        (ModestISearchView *self, gint *x, gint *y,
  64                                                                          gint *width, gint *height);
  65 static gboolean modest_mozembed_mime_part_view_search_default            (ModestISearchView *self, const gchar *string);
  66 static gboolean modest_mozembed_mime_part_view_search_next_default       (ModestISearchView *self);
  67 static gboolean modest_mozembed_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
  68                                                                           gint *width, gint *height);
  69
  70
  71 /* internal api */
  72 static gboolean      is_empty   (ModestMozembedMimePartView *self);
  73 static void          set_zoom   (ModestMozembedMimePartView *self, gdouble zoom);
  74 static gdouble       get_zoom   (ModestMozembedMimePartView *self);
  75 static gboolean      search             (ModestMozembedMimePartView *self, const gchar *string);
  76 static gboolean      search_next        (ModestMozembedMimePartView *self);
  77 static gboolean      get_selection_area (ModestMozembedMimePartView *self, gint *x, gint *y,
  78                                          gint *width, gint *height);
  79
  80 typedef struct _ModestMozembedMimePartViewPrivate ModestMozembedMimePartViewPrivate;
  81 struct _ModestMozembedMimePartViewPrivate {
  82         gdouble current_zoom;
  83         gchar *last_search;
  84 };
  85
  86 #define MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  87                                                                                        MODEST_TYPE_MOZEMBED_MIME_PART_VIEW, \
  88                                                                                        ModestMozembedMimePartViewPrivate))
  89
  90 static GtkMozEmbedClass *parent_class = NULL;
  91
  92 GtkWidget *
  93 modest_mozembed_mime_part_view_new ()
  94 {
  95         return g_object_new (MODEST_TYPE_MOZEMBED_MIME_PART_VIEW, NULL);
  96 }
  97
  98 /* GOBJECT IMPLEMENTATION */
  99 GType
 100 modest_mozembed_mime_part_view_get_type (void)
 101 {
 102         static GType my_type = 0;
 103         if (!my_type) {
 104                 static const GTypeInfo my_info = {
 105                         sizeof(ModestMozembedMimePartViewClass),
 106                         NULL,           /* base init */
 107                         NULL,           /* base finalize */
 108                         (GClassInitFunc) modest_mozembed_mime_part_view_class_init,
 109                         NULL,           /* class finalize */
 110                         NULL,           /* class data */
 111                         sizeof(ModestMozembedMimePartView),
 112                         1,              /* n_preallocs */
 113                         (GInstanceInitFunc) modest_mozembed_mime_part_view_init,
 114                         NULL
 115                 };
 116
 117                 static const GInterfaceInfo modest_mime_part_view_info =
 118                 {
 119                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 120                   NULL,         /* interface_finalize */
 121                   NULL          /* interface_data */
 122                 };
 123
 124                 static const GInterfaceInfo modest_zoomable_info =
 125                 {
 126                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 127                   NULL,         /* interface_finalize */
 128                   NULL          /* interface_data */
 129                 };
 130
 131                 static const GInterfaceInfo modest_isearch_view_info =
 132                 {
 133                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 134                   NULL,         /* interface_finalize */
 135                   NULL          /* interface_data */
 136                 };
 137
 138                 my_type = g_type_register_static (TNY_TYPE_MOZ_EMBED_HTML_MIME_PART_VIEW,
 139                                                   "ModestMozembedMimePartView",
 140                                                   &my_info, 0);
 141
 142                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 143                         &modest_mime_part_view_info);
 144
 145                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 146                         &modest_zoomable_info);
 147                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 148                         &modest_isearch_view_info);
 149         }
 150         return my_type;
 151 }
 152
 153 static void
 154 modest_mozembed_mime_part_view_class_init (ModestMozembedMimePartViewClass *klass)
 155 {
 156         GObjectClass *gobject_class;
 157         gobject_class = (GObjectClass*) klass;
 158
 159         parent_class            = g_type_class_peek_parent (klass);
 160         gobject_class->finalize = modest_mozembed_mime_part_view_finalize;
 161         klass->is_empty_func = modest_mozembed_mime_part_view_is_empty_default;
 162         klass->get_zoom_func = modest_mozembed_mime_part_view_get_zoom_default;
 163         klass->set_zoom_func = modest_mozembed_mime_part_view_set_zoom_default;
 164         klass->zoom_minus_func = modest_mozembed_mime_part_view_zoom_minus_default;
 165         klass->zoom_plus_func = modest_mozembed_mime_part_view_zoom_plus_default;
 166         klass->search_func = modest_mozembed_mime_part_view_search_default;
 167         klass->search_next_func = modest_mozembed_mime_part_view_search_next_default;
 168         klass->get_selection_area_func = modest_mozembed_mime_part_view_get_selection_area_default;
 169
 170         g_type_class_add_private (gobject_class, sizeof(ModestMozembedMimePartViewPrivate));
 171
 172 }
 173
 174 static void
 175 modest_mozembed_mime_part_view_init (ModestMozembedMimePartView *self)
 176 {
 177         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 178
 179         priv->current_zoom = 1.0;
 180         priv->last_search = NULL;
 181
 182 }
 183
 184 static void
 185 modest_mozembed_mime_part_view_finalize (GObject *obj)
 186 {
 187         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (obj);
 188
 189         g_free (priv->last_search);
 190         priv->last_search = NULL;
 191
 192         G_OBJECT_CLASS (parent_class)->finalize (obj);
 193 }
 194
 195 /* INTERNAL API */
 196
 197 static gboolean
 198 is_empty   (ModestMozembedMimePartView *self)
 199 {
 200         /* TODO: not implemented yet */
 201         return FALSE;
 202 }
 203
 204 static void
 205 set_zoom (ModestMozembedMimePartView *self, gdouble zoom)
 206 {
 207         ModestMozembedMimePartViewPrivate *priv;
 208
 209         g_return_if_fail (MODEST_IS_MOZEMBED_MIME_PART_VIEW (self));
 210
 211         priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 212         priv->current_zoom = zoom;
 213         gtk_moz_embed_set_zoom_level (GTK_MOZ_EMBED(self), (gint) (zoom*100), NULL);
 214
 215         gtk_widget_queue_resize (GTK_WIDGET (self));
 216 }
 217
 218 static gdouble
 219 get_zoom (ModestMozembedMimePartView *self)
 220 {
 221         ModestMozembedMimePartViewPrivate *priv;
 222
 223         g_return_val_if_fail (MODEST_IS_MOZEMBED_MIME_PART_VIEW (self), 1.0);
 224
 225         priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 226
 227         return priv->current_zoom;
 228 }
 229
 230 static gboolean
 231 search (ModestMozembedMimePartView *self,
 232         const gchar *string)
 233 {
 234         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 235         if (priv->last_search != NULL) {
 236                 g_free (priv->last_search);
 237         }
 238         priv->last_search = g_strdup (string);
 239
 240         return gtk_moz_embed_find_text (GTK_MOZ_EMBED (self), string, FALSE, FALSE,
 241                                         FALSE, TRUE, 0);
 242 }
 243
 244 static gboolean
 245 search_next (ModestMozembedMimePartView *self)
 246 {
 247         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 248         return gtk_moz_embed_find_text (GTK_MOZ_EMBED (self), priv->last_search, FALSE, FALSE,
 249                                         FALSE, FALSE, 0);
 250 }
 251
 252 static gboolean
 253 get_selection_area (ModestMozembedMimePartView *self,
 254                     gint *x, gint *y,
 255                     gint *width, gint *height)
 256 {
 257         /* TODO: Implement incremental search */
 258         return FALSE;
 259
 260 }
 261
 262
 263 /* MODEST MIME PART VIEW IMPLEMENTATION */
 264
 265 static void
 266 modest_mime_part_view_init (gpointer g, gpointer iface_data)
 267 {
 268         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
 269
 270         klass->is_empty_func = modest_mozembed_mime_part_view_is_empty;
 271
 272         return;
 273 }
 274
 275 static gboolean
 276 modest_mozembed_mime_part_view_is_empty (ModestMimePartView *self)
 277 {
 278         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->is_empty_func (self);
 279 }
 280
 281 static gboolean
 282 modest_mozembed_mime_part_view_is_empty_default (ModestMimePartView *self)
 283 {
 284         return is_empty (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 285 }
 286
 287
 288 /* MODEST ZOOMABLE IMPLEMENTATION */
 289 static void
 290 modest_zoomable_init (gpointer g, gpointer iface_data)
 291 {
 292         ModestZoomableIface *klass = (ModestZoomableIface *)g;
 293
 294         klass->get_zoom_func = modest_mozembed_mime_part_view_get_zoom;
 295         klass->set_zoom_func = modest_mozembed_mime_part_view_set_zoom;
 296         klass->zoom_minus_func = modest_mozembed_mime_part_view_zoom_minus;
 297         klass->zoom_plus_func = modest_mozembed_mime_part_view_zoom_plus;
 298
 299         return;
 300 }
 301
 302 static gdouble
 303 modest_mozembed_mime_part_view_get_zoom (ModestZoomable *self)
 304 {
 305         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->get_zoom_func (self);
 306 }
 307
 308 static gdouble
 309 modest_mozembed_mime_part_view_get_zoom_default (ModestZoomable *self)
 310 {
 311         return get_zoom (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 312 }
 313
 314 static void
 315 modest_mozembed_mime_part_view_set_zoom (ModestZoomable *self, gdouble value)
 316 {
 317         MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
 318 }
 319
 320 static void
 321 modest_mozembed_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value)
 322 {
 323         set_zoom (MODEST_MOZEMBED_MIME_PART_VIEW (self), value);
 324 }
 325
 326 static gboolean
 327 modest_mozembed_mime_part_view_zoom_minus (ModestZoomable *self)
 328 {
 329         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->zoom_minus_func (self);
 330 }
 331
 332 static gboolean
 333 modest_mozembed_mime_part_view_zoom_minus_default (ModestZoomable *self)
 334 {
 335         /* operation not supported in ModestMozembedMimePartView */
 336         return FALSE;
 337 }
 338
 339 static gboolean
 340 modest_mozembed_mime_part_view_zoom_plus (ModestZoomable *self)
 341 {
 342         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->zoom_plus_func (self);
 343 }
 344
 345 static gboolean
 346 modest_mozembed_mime_part_view_zoom_plus_default (ModestZoomable *self)
 347 {
 348         /* operation not supported in ModestMozembedMimePartView */
 349         return FALSE;
 350 }
 351
 352 /* ISEARCH VIEW IMPLEMENTATION */
 353 static void
 354 modest_isearch_view_init (gpointer g, gpointer iface_data)
 355 {
 356         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
 357
 358         klass->search_func = modest_mozembed_mime_part_view_search;
 359         klass->search_next_func = modest_mozembed_mime_part_view_search_next;
 360         klass->get_selection_area_func = modest_mozembed_mime_part_view_get_selection_area;
 361
 362         return;
 363 }
 364
 365 static gboolean
 366 modest_mozembed_mime_part_view_search (ModestISearchView *self, const gchar *string)
 367 {
 368         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->search_func (self, string);
 369 }
 370
 371 static gboolean
 372 modest_mozembed_mime_part_view_search_default (ModestISearchView *self, const gchar *string)
 373 {
 374         return search (MODEST_MOZEMBED_MIME_PART_VIEW (self), string);
 375 }
 376
 377 static gboolean
 378 modest_mozembed_mime_part_view_search_next(ModestISearchView *self)
 379 {
 380         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->search_next_func (self);
 381 }
 382
 383 static gboolean
 384 modest_mozembed_mime_part_view_search_next_default (ModestISearchView *self)
 385 {
 386         return search_next (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 387 }
 388
 389 static gboolean
 390 modest_mozembed_mime_part_view_get_selection_area (ModestISearchView *self, gint *x, gint *y,
 391                                                   gint *width, gint *height)
 392 {
 393         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->get_selection_area_func (self, x, y, width, height);
 394 }
 395
 396 static gboolean
 397 modest_mozembed_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
 398                                                           gint *width, gint *height)
 399 {
 400         return get_selection_area (MODEST_MOZEMBED_MIME_PART_VIEW (self), x, y, width, height);
 401 }