src/plugins/dillo/dillo_viewer.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 the Claws Mail Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include <unistd.h>
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #if GTK_CHECK_VERSION(3, 0, 0)
  31 #include <gtk/gtkx.h>
  32 #endif
  33 #include <gdk/gdkx.h>
  34
  35 #include "common/claws.h"
  36 #include "common/version.h"
  37 #include "plugin.h"
  38 #include "file-utils.h"
  39 #include "utils.h"
  40 #include "mimeview.h"
  41 #include "addr_compl.h"
  42
  43 #include "dillo_prefs.h"
  44
  45 #define PLUGIN_NAME (_("Dillo HTML Viewer"))
  46
  47 typedef struct _DilloViewer DilloViewer;
  48
  49 struct _DilloViewer
  50 {
  51         MimeViewer       mimeviewer;
  52         GtkWidget       *widget;
  53         GtkWidget       *socket;
  54         gchar           *filename;
  55 };
  56
  57 static MimeViewerFactory dillo_viewer_factory;
  58
  59 static GtkWidget *dillo_get_widget(MimeViewer *_viewer)
  60 {
  61         DilloViewer *viewer = (DilloViewer *) _viewer;
  62
  63         debug_print("dillo_get_widget\n");
  64
  65         return GTK_WIDGET(viewer->widget);
  66 }
  67
  68 #if !GTK_CHECK_VERSION(3, 0, 0)
  69 static gboolean socket_destroy_cb(GtkObject *object, gpointer data)
  70 #else
  71 static gboolean socket_destroy_cb(GtkObject *object, gpointer data)
  72 #endif
  73 {
  74         DilloViewer *viewer = (DilloViewer *) data;
  75         debug_print("Destroyed dillo socket %p\n", viewer->socket);
  76         viewer->socket = NULL;
  77         return FALSE;
  78 }
  79
  80 static gboolean load_images(DilloViewer *viewer)
  81 {
  82         MessageView *messageview = ((MimeViewer *)viewer)->mimeview
  83                                         ? ((MimeViewer *)viewer)->mimeview->messageview
  84                                         : NULL;
  85         MsgInfo *msginfo = NULL;
  86         gchar *ab_folderpath = NULL;
  87
  88         if (messageview == NULL)
  89                 return FALSE;
  90
  91         msginfo = messageview->msginfo;
  92
  93         if (msginfo == NULL)
  94                 return FALSE;
  95
  96         /* don't load remote images, period. */
  97         if (dillo_prefs.local)
  98                 return FALSE;
  99
 100         /* don't do whitelisting -> load images */
 101         if (!dillo_prefs.whitelist_ab)
 102                 return TRUE;
 103
 104         if (*dillo_prefs.whitelist_ab_folder != '\0' &&
 105             strcasecmp(dillo_prefs.whitelist_ab_folder, _("Any")) != 0)
 106                 ab_folderpath = dillo_prefs.whitelist_ab_folder;
 107
 108         start_address_completion(ab_folderpath);
 109
 110         /* do whitelisting -> check sender */
 111         if (found_in_addressbook(msginfo->from)) {
 112                 end_address_completion();
 113                 return TRUE;
 114         }
 115
 116         end_address_completion();
 117         return FALSE;
 118 }
 119
 120 static void dillo_show_mimepart(MimeViewer *_viewer,
 121                                 const gchar *infile,
 122                                 MimeInfo *partinfo)
 123 {
 124         DilloViewer *viewer = (DilloViewer *) _viewer;
 125         GdkWindow *gdkwin;
 126
 127         debug_print("dillo_show_mimepart\n");
 128
 129         if (viewer->filename != NULL) {
 130                 claws_unlink(viewer->filename);
 131                 g_free(viewer->filename);
 132         }
 133
 134         viewer->filename = procmime_get_tmp_file_name(partinfo);
 135
 136         if (!(procmime_get_part(viewer->filename, partinfo) < 0)) {
 137                 gchar *cmd;
 138
 139                 if (viewer->socket)
 140                         gtk_widget_destroy(viewer->socket);
 141                 viewer->socket = gtk_socket_new();
 142                 debug_print("Adding dillo socket %p", viewer->socket);
 143                 gtk_container_add(GTK_CONTAINER(viewer->widget),
 144                                   viewer->socket);
 145                 gtk_widget_realize(viewer->socket);
 146                 gtk_widget_show(viewer->socket);
 147                 g_signal_connect(G_OBJECT(viewer->socket), "destroy",
 148                                  G_CALLBACK(socket_destroy_cb), viewer);
 149
 150                 gdkwin = gtk_widget_get_window(viewer->socket);
 151                 cmd = g_strdup_printf("dillo %s%s-x %d \"%s\"",
 152                                       (!load_images(viewer) ? "-l " : ""),
 153                                       (dillo_prefs.full ? "-f " : ""),
 154                                       (gint) GDK_WINDOW_XWINDOW(gdkwin),
 155                                       viewer->filename);
 156
 157                 execute_command_line(cmd, TRUE, NULL);
 158                 g_free(cmd);
 159         }
 160 }
 161
 162 static void dillo_clear_viewer(MimeViewer *_viewer)
 163 {
 164         DilloViewer *viewer = (DilloViewer *) _viewer;
 165
 166         debug_print("dillo_clear_viewer\n");
 167         debug_print("Removing dillo socket %p\n", viewer->socket);
 168
 169         if (viewer->socket) {
 170                 gtk_widget_destroy(viewer->socket);
 171         }
 172 }
 173
 174 static void dillo_destroy_viewer(MimeViewer *_viewer)
 175 {
 176         DilloViewer *viewer = (DilloViewer *) _viewer;
 177
 178         debug_print("dillo_destroy_viewer\n");
 179
 180         if (viewer->socket) {
 181                 gtk_widget_destroy(viewer->socket);
 182         }
 183
 184         g_object_unref(GTK_WIDGET(viewer->widget));
 185         claws_unlink(viewer->filename);
 186         g_free(viewer->filename);
 187         g_free(viewer);
 188 }
 189
 190 static MimeViewer *dillo_viewer_create(void)
 191 {
 192         DilloViewer *viewer;
 193
 194         debug_print("dillo_viewer_create\n");
 195
 196         viewer = g_new0(DilloViewer, 1);
 197         viewer->mimeviewer.factory = &dillo_viewer_factory;
 198         viewer->mimeviewer.get_widget = dillo_get_widget;
 199         viewer->mimeviewer.show_mimepart = dillo_show_mimepart;
 200         viewer->mimeviewer.clear_viewer = dillo_clear_viewer;
 201         viewer->mimeviewer.destroy_viewer = dillo_destroy_viewer;
 202         viewer->mimeviewer.get_selection = NULL;
 203         viewer->widget = gtk_event_box_new();
 204
 205         gtk_widget_show(viewer->widget);
 206         g_object_ref(viewer->widget);
 207
 208         viewer->filename = NULL;
 209
 210         return (MimeViewer *) viewer;
 211 }
 212
 213 static gchar *content_types[] =
 214         {"text/html", NULL};
 215
 216 static MimeViewerFactory dillo_viewer_factory =
 217 {
 218         content_types,
 219         0,
 220
 221         dillo_viewer_create,
 222 };
 223
 224 gint plugin_init(gchar **error)
 225 {
 226         gchar *dillo_path = NULL;
 227         if (!check_plugin_version(MAKE_NUMERIC_VERSION(2,9,2,72),
 228                                 VERSION_NUMERIC, PLUGIN_NAME, error))
 229                 return -1;
 230
 231         if ((dillo_path = g_find_program_in_path("dillo")) == NULL) {
 232                 *error = g_strdup(_("Can't find the dillo executable in PATH. Is it installed?"));
 233                 return -1;
 234         }
 235         g_free(dillo_path);
 236
 237         dillo_prefs_init();
 238
 239         mimeview_register_viewer_factory(&dillo_viewer_factory);
 240
 241         return 0;
 242 }
 243
 244 gboolean plugin_done(void)
 245 {
 246         mimeview_unregister_viewer_factory(&dillo_viewer_factory);
 247
 248         dillo_prefs_done();
 249         return TRUE;
 250 }
 251
 252 const gchar *plugin_name(void)
 253 {
 254         return PLUGIN_NAME;
 255 }
 256
 257 const gchar *plugin_desc(void)
 258 {
 259         return _("This plugin renders HTML mail using the Dillo "
 260                 "web browser.\n"
 261                 "\n"
 262                 "Options can be found in /Configuration/Preferences/Plugins/Dillo Browser");
 263 }
 264
 265 const gchar *plugin_type(void)
 266 {
 267         return "GTK2";
 268 }
 269
 270 const gchar *plugin_licence(void)
 271 {
 272         return "GPL3+";
 273 }
 274
 275 const gchar *plugin_version(void)
 276 {
 277         return VERSION;
 278 }
 279
 280 struct PluginFeature *plugin_provides(void)
 281 {
 282         static struct PluginFeature features[] =
 283                 { {PLUGIN_MIMEVIEWER, "text/html"},
 284                   {PLUGIN_NOTHING, NULL}};
 285         return features;
 286 }