git.maemo.org Git - modest/blob - src/widgets/modest-mozembed-mime-part-view.cpp

   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 #ifdef XPCOM_GLUE
  31 #include <gtkmozembed_glue.cpp>
  32 #endif
  33
  34 #include <widgets/modest-mozembed-mime-part-view.h>
  35 #include <string.h>
  36 #include <tny-stream.h>
  37 #include <tny-mime-part-view.h>
  38 #include <tny-gtk-text-buffer-stream.h>
  39 #include <tny-moz-embed-html-mime-part-view.h>
  40 #include <modest-text-utils.h>
  41 #include <widgets/modest-mime-part-view.h>
  42 #include <widgets/modest-zoomable.h>
  43
  44 /* gobject structure methods */
  45 static void    modest_mozembed_mime_part_view_class_init (ModestMozembedMimePartViewClass *klass);
  46 static void    modest_mime_part_view_init               (gpointer g, gpointer iface_data);
  47 static void    modest_zoomable_init                     (gpointer g, gpointer iface_data);
  48 static void    modest_isearch_view_init                 (gpointer g, gpointer iface_data);
  49 static void    modest_mozembed_mime_part_view_init       (ModestMozembedMimePartView *self);
  50 static void    modest_mozembed_mime_part_view_finalize   (GObject *self);
  51
  52 /* ModestMimePartView implementation */
  53 static gboolean modest_mozembed_mime_part_view_is_empty (ModestMimePartView *self);
  54 static gboolean modest_mozembed_mime_part_view_is_empty_default (ModestMimePartView *self);
  55 /* ModestZoomable implementation */
  56 static gdouble modest_mozembed_mime_part_view_get_zoom (ModestZoomable *self);
  57 static void modest_mozembed_mime_part_view_set_zoom (ModestZoomable *self, gdouble value);
  58 static gboolean modest_mozembed_mime_part_view_zoom_minus (ModestZoomable *self);
  59 static gboolean modest_mozembed_mime_part_view_zoom_plus (ModestZoomable *self);
  60 static gdouble modest_mozembed_mime_part_view_get_zoom_default (ModestZoomable *self);
  61 static void modest_mozembed_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value);
  62 static gboolean modest_mozembed_mime_part_view_zoom_minus_default (ModestZoomable *self);
  63 static gboolean modest_mozembed_mime_part_view_zoom_plus_default (ModestZoomable *self);
  64 /* ModestISearchView implementation */
  65 static gboolean modest_mozembed_mime_part_view_search                    (ModestISearchView *self, const gchar *string);
  66 static gboolean modest_mozembed_mime_part_view_search_next               (ModestISearchView *self);
  67 static gboolean modest_mozembed_mime_part_view_get_selection_area        (ModestISearchView *self, gint *x, gint *y,
  68                                                                          gint *width, gint *height);
  69 static gboolean modest_mozembed_mime_part_view_search_default            (ModestISearchView *self, const gchar *string);
  70 static gboolean modest_mozembed_mime_part_view_search_next_default       (ModestISearchView *self);
  71 static gboolean modest_mozembed_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
  72                                                                           gint *width, gint *height);
  73
  74
  75 /* internal api */
  76 static gboolean      is_empty   (ModestMozembedMimePartView *self);
  77 static void          set_zoom   (ModestMozembedMimePartView *self, gdouble zoom);
  78 static gdouble       get_zoom   (ModestMozembedMimePartView *self);
  79 static gboolean      search             (ModestMozembedMimePartView *self, const gchar *string);
  80 static gboolean      search_next        (ModestMozembedMimePartView *self);
  81 static gboolean      get_selection_area (ModestMozembedMimePartView *self, gint *x, gint *y,
  82                                          gint *width, gint *height);
  83
  84 typedef struct _ModestMozembedMimePartViewPrivate ModestMozembedMimePartViewPrivate;
  85 struct _ModestMozembedMimePartViewPrivate {
  86         gdouble current_zoom;
  87         gchar *last_search;
  88 };
  89
  90 #define MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  91                                                                                        MODEST_TYPE_MOZEMBED_MIME_PART_VIEW, \
  92                                                                                        ModestMozembedMimePartViewPrivate))
  93
  94 static GtkMozEmbedClass *parent_class = NULL;
  95
  96 GtkWidget *
  97 modest_mozembed_mime_part_view_new ()
  98 {
  99         return GTK_WIDGET(g_object_new (MODEST_TYPE_MOZEMBED_MIME_PART_VIEW, NULL));
 100 }
 101
 102 /* GOBJECT IMPLEMENTATION */
 103 GType
 104 modest_mozembed_mime_part_view_get_type (void)
 105 {
 106         static GType my_type = 0;
 107         if (!my_type) {
 108                 static const GTypeInfo my_info = {
 109                         sizeof(ModestMozembedMimePartViewClass),
 110                         NULL,           /* base init */
 111                         NULL,           /* base finalize */
 112                         (GClassInitFunc) modest_mozembed_mime_part_view_class_init,
 113                         NULL,           /* class finalize */
 114                         NULL,           /* class data */
 115                         sizeof(ModestMozembedMimePartView),
 116                         1,              /* n_preallocs */
 117                         (GInstanceInitFunc) modest_mozembed_mime_part_view_init,
 118                         NULL
 119                 };
 120
 121                 static const GInterfaceInfo modest_mime_part_view_info =
 122                 {
 123                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 124                   NULL,         /* interface_finalize */
 125                   NULL          /* interface_data */
 126                 };
 127
 128                 static const GInterfaceInfo modest_zoomable_info =
 129                 {
 130                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 131                   NULL,         /* interface_finalize */
 132                   NULL          /* interface_data */
 133                 };
 134
 135                 static const GInterfaceInfo modest_isearch_view_info =
 136                 {
 137                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 138                   NULL,         /* interface_finalize */
 139                   NULL          /* interface_data */
 140                 };
 141
 142                 my_type = g_type_register_static (TNY_TYPE_MOZ_EMBED_HTML_MIME_PART_VIEW,
 143                                                   "ModestMozembedMimePartView",
 144                                                   &my_info, GTypeFlags(0));
 145
 146                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 147                         &modest_mime_part_view_info);
 148
 149                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 150                         &modest_zoomable_info);
 151                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 152                         &modest_isearch_view_info);
 153         }
 154         return my_type;
 155 }
 156
 157 static void
 158 modest_mozembed_mime_part_view_class_init (ModestMozembedMimePartViewClass *klass)
 159 {
 160         GObjectClass *gobject_class;
 161         gobject_class = (GObjectClass*) klass;
 162
 163         parent_class            = (GtkMozEmbedClass*) g_type_class_peek_parent (klass);
 164         gobject_class->finalize = modest_mozembed_mime_part_view_finalize;
 165         klass->is_empty_func = modest_mozembed_mime_part_view_is_empty_default;
 166         klass->get_zoom_func = modest_mozembed_mime_part_view_get_zoom_default;
 167         klass->set_zoom_func = modest_mozembed_mime_part_view_set_zoom_default;
 168         klass->zoom_minus_func = modest_mozembed_mime_part_view_zoom_minus_default;
 169         klass->zoom_plus_func = modest_mozembed_mime_part_view_zoom_plus_default;
 170         klass->search_func = modest_mozembed_mime_part_view_search_default;
 171         klass->search_next_func = modest_mozembed_mime_part_view_search_next_default;
 172         klass->get_selection_area_func = modest_mozembed_mime_part_view_get_selection_area_default;
 173
 174         g_type_class_add_private (gobject_class, sizeof(ModestMozembedMimePartViewPrivate));
 175
 176 }
 177
 178 static void
 179 modest_mozembed_mime_part_view_init (ModestMozembedMimePartView *self)
 180 {
 181         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 182
 183         priv->current_zoom = 1.0;
 184         priv->last_search = NULL;
 185
 186 }
 187
 188 static void
 189 modest_mozembed_mime_part_view_finalize (GObject *obj)
 190 {
 191         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (obj);
 192
 193         g_free (priv->last_search);
 194         priv->last_search = NULL;
 195
 196         G_OBJECT_CLASS (parent_class)->finalize (obj);
 197 }
 198
 199 /* INTERNAL API */
 200
 201 static gboolean
 202 is_empty   (ModestMozembedMimePartView *self)
 203 {
 204         /* TODO: not implemented yet */
 205         return FALSE;
 206 }
 207
 208 static void
 209 set_zoom (ModestMozembedMimePartView *self, gdouble zoom)
 210 {
 211         ModestMozembedMimePartViewPrivate *priv;
 212
 213         g_return_if_fail (MODEST_IS_MOZEMBED_MIME_PART_VIEW (self));
 214
 215         priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 216         priv->current_zoom = zoom;
 217         gtk_moz_embed_set_zoom_level (GTK_MOZ_EMBED(self), (gint) (zoom*100), NULL);
 218
 219         gtk_widget_queue_resize (GTK_WIDGET (self));
 220 }
 221
 222 static gdouble
 223 get_zoom (ModestMozembedMimePartView *self)
 224 {
 225         ModestMozembedMimePartViewPrivate *priv;
 226
 227         g_return_val_if_fail (MODEST_IS_MOZEMBED_MIME_PART_VIEW (self), 1.0);
 228
 229         priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 230
 231         return priv->current_zoom;
 232 }
 233
 234 static gboolean
 235 search (ModestMozembedMimePartView *self,
 236         const gchar *string)
 237 {
 238         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 239         if (priv->last_search != NULL) {
 240                 g_free (priv->last_search);
 241         }
 242         priv->last_search = g_strdup (string);
 243
 244         return gtk_moz_embed_find_text (GTK_MOZ_EMBED (self), string, FALSE, FALSE,
 245                                         FALSE, TRUE, 0);
 246 }
 247
 248 static gboolean
 249 search_next (ModestMozembedMimePartView *self)
 250 {
 251         ModestMozembedMimePartViewPrivate *priv = MODEST_MOZEMBED_MIME_PART_VIEW_GET_PRIVATE (self);
 252         return gtk_moz_embed_find_text (GTK_MOZ_EMBED (self), priv->last_search, FALSE, FALSE,
 253                                         FALSE, FALSE, 0);
 254 }
 255
 256 static gboolean
 257 get_selection_area (ModestMozembedMimePartView *self,
 258                     gint *x, gint *y,
 259                     gint *width, gint *height)
 260 {
 261         /* TODO: Implement incremental search */
 262         return FALSE;
 263
 264 }
 265
 266
 267 /* MODEST MIME PART VIEW IMPLEMENTATION */
 268
 269 static void
 270 modest_mime_part_view_init (gpointer g, gpointer iface_data)
 271 {
 272         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
 273
 274         klass->is_empty_func = modest_mozembed_mime_part_view_is_empty;
 275
 276         return;
 277 }
 278
 279 static gboolean
 280 modest_mozembed_mime_part_view_is_empty (ModestMimePartView *self)
 281 {
 282         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->is_empty_func (self);
 283 }
 284
 285 static gboolean
 286 modest_mozembed_mime_part_view_is_empty_default (ModestMimePartView *self)
 287 {
 288         return is_empty (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 289 }
 290
 291
 292 /* MODEST ZOOMABLE IMPLEMENTATION */
 293 static void
 294 modest_zoomable_init (gpointer g, gpointer iface_data)
 295 {
 296         ModestZoomableIface *klass = (ModestZoomableIface *)g;
 297
 298         klass->get_zoom_func = modest_mozembed_mime_part_view_get_zoom;
 299         klass->set_zoom_func = modest_mozembed_mime_part_view_set_zoom;
 300         klass->zoom_minus_func = modest_mozembed_mime_part_view_zoom_minus;
 301         klass->zoom_plus_func = modest_mozembed_mime_part_view_zoom_plus;
 302
 303         return;
 304 }
 305
 306 static gdouble
 307 modest_mozembed_mime_part_view_get_zoom (ModestZoomable *self)
 308 {
 309         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->get_zoom_func (self);
 310 }
 311
 312 static gdouble
 313 modest_mozembed_mime_part_view_get_zoom_default (ModestZoomable *self)
 314 {
 315         return get_zoom (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 316 }
 317
 318 static void
 319 modest_mozembed_mime_part_view_set_zoom (ModestZoomable *self, gdouble value)
 320 {
 321         MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
 322 }
 323
 324 static void
 325 modest_mozembed_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value)
 326 {
 327         set_zoom (MODEST_MOZEMBED_MIME_PART_VIEW (self), value);
 328 }
 329
 330 static gboolean
 331 modest_mozembed_mime_part_view_zoom_minus (ModestZoomable *self)
 332 {
 333         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->zoom_minus_func (self);
 334 }
 335
 336 static gboolean
 337 modest_mozembed_mime_part_view_zoom_minus_default (ModestZoomable *self)
 338 {
 339         /* operation not supported in ModestMozembedMimePartView */
 340         return FALSE;
 341 }
 342
 343 static gboolean
 344 modest_mozembed_mime_part_view_zoom_plus (ModestZoomable *self)
 345 {
 346         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->zoom_plus_func (self);
 347 }
 348
 349 static gboolean
 350 modest_mozembed_mime_part_view_zoom_plus_default (ModestZoomable *self)
 351 {
 352         /* operation not supported in ModestMozembedMimePartView */
 353         return FALSE;
 354 }
 355
 356 /* ISEARCH VIEW IMPLEMENTATION */
 357 static void
 358 modest_isearch_view_init (gpointer g, gpointer iface_data)
 359 {
 360         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
 361
 362         klass->search_func = modest_mozembed_mime_part_view_search;
 363         klass->search_next_func = modest_mozembed_mime_part_view_search_next;
 364         klass->get_selection_area_func = modest_mozembed_mime_part_view_get_selection_area;
 365
 366         return;
 367 }
 368
 369 static gboolean
 370 modest_mozembed_mime_part_view_search (ModestISearchView *self, const gchar *string)
 371 {
 372         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->search_func (self, string);
 373 }
 374
 375 static gboolean
 376 modest_mozembed_mime_part_view_search_default (ModestISearchView *self, const gchar *string)
 377 {
 378         return search (MODEST_MOZEMBED_MIME_PART_VIEW (self), string);
 379 }
 380
 381 static gboolean
 382 modest_mozembed_mime_part_view_search_next(ModestISearchView *self)
 383 {
 384         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->search_next_func (self);
 385 }
 386
 387 static gboolean
 388 modest_mozembed_mime_part_view_search_next_default (ModestISearchView *self)
 389 {
 390         return search_next (MODEST_MOZEMBED_MIME_PART_VIEW (self));
 391 }
 392
 393 static gboolean
 394 modest_mozembed_mime_part_view_get_selection_area (ModestISearchView *self, gint *x, gint *y,
 395                                                   gint *width, gint *height)
 396 {
 397         return MODEST_MOZEMBED_MIME_PART_VIEW_GET_CLASS (self)->get_selection_area_func (self, x, y, width, height);
 398 }
 399
 400 static gboolean
 401 modest_mozembed_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
 402                                                           gint *width, gint *height)
 403 {
 404         return get_selection_area (MODEST_MOZEMBED_MIME_PART_VIEW (self), x, y, width, height);
 405 }