Initial commit of litehtml_viewer

[claws.git] / src / plugins / litehtml_viewer / lh_viewer.c

diff --git a/src/plugins/litehtml_viewer/lh_viewer.c b/src/plugins/litehtml_viewer/lh_viewer.c
new file mode 100644 (file)
index 0000000..73c1b69
--- /dev/null
+++ b/src/plugins/litehtml_viewer/lh_viewer.c
@@ -0,0 +1,148 @@
+/*
+ * Claws Mail -- A GTK+ based, lightweight, and fast e-mail client
+ * Copyright(C) 1999-2015 the Claws Mail Team
+ * == Fancy Plugin ==
+ * This file Copyright (C) 2009-2015 Salvatore De Paolis
+ * <iwkse@claws-mail.org> and the Claws Mail Team
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write tothe Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#include "claws-features.h"
+#endif
+
+#include <codeconv.h>
+#include "lh_viewer.h"
+
+static gchar *content_types[] = { "text/html", NULL };
+
+MimeViewer *lh_viewer_create();
+
+MimeViewerFactory lh_viewer_factory = {
+       content_types,
+       0,
+       lh_viewer_create
+};
+
+static GtkWidget *lh_get_widget(MimeViewer *_viewer)
+{
+       debug_print("LH: get_widget\n");
+       LHViewer *viewer = (LHViewer *)_viewer;
+       return viewer->vbox;
+}
+
+static gchar *get_utf8_string(const gchar *string) {
+        gchar *utf8;
+        gsize length;
+        GError *error = NULL;
+
+       if (!g_utf8_validate(string, -1, NULL)) {
+               const gchar *cur_locale = conv_get_current_locale();
+               utf8 = g_convert(string, -1, "utf-8", cur_locale, NULL, &length, &error);
+               if (error) {
+                       debug_print("Failed convertion to current locale: %s", error->message);
+                       g_error_free(error);
+                       error = NULL;
+                       utf8 = g_convert(string, -1, "utf-8", "iso-8859-1", NULL, &length, &error);
+                       if (error) {
+                               debug_print("Charset detection failed");
+                               utf8 = g_strdup(string);
+                               g_error_free(error);
+                       }
+               }
+       } else {
+               utf8 = g_strdup(string);
+       }
+
+       return utf8;
+}
+
+static void lh_show_mimepart(MimeViewer *_viewer, const gchar *infole,
+               MimeInfo *partinfo)
+{
+       debug_print("LH: show_mimepart\n");
+       LHViewer *viewer = (LHViewer *)_viewer;
+
+       gchar *msgfile = procmime_get_tmp_file_name(partinfo);
+       debug_print("LH: msgfile '%s'\n", msgfile);
+
+       if (procmime_get_part(msgfile, partinfo) < 0) {
+               debug_print("LH: couldn't get MIME part file\n");
+               g_free(msgfile);
+               return;
+       }
+
+       gchar *contents, *utf8;
+       gsize length;
+       GError *error = NULL;
+       if (!g_file_get_contents(msgfile, &contents, &length, &error)) {
+               g_warning("LiteHTML viewer: couldn't read contents of file '%s': %s",
+                               msgfile, error->message);
+               g_error_free(error);
+               return;
+       } else {
+               utf8 = get_utf8_string(contents);
+               g_free(contents);
+       }
+
+       g_free(msgfile);
+
+       lh_widget_open_html(viewer->widget, utf8);
+       g_free(utf8);
+}
+
+static void lh_clear_viewer(MimeViewer *_viewer)
+{
+       debug_print("LH: clear_viewer\n");
+       LHViewer *viewer = (LHViewer *)_viewer;
+       lh_widget_clear(viewer->widget);
+}
+
+static void lh_destroy_viewer(MimeViewer *_viewer)
+{
+       debug_print("LH: destroy_viewer\n");
+
+       /* Just in case. */
+       lh_clear_viewer(_viewer);
+
+//     LHViewer *viewer = (LHViewer *)_viewer;
+//     lh_widget_destroy(viewer->widget);
+}
+
+/***************************************************************/
+MimeViewer *lh_viewer_create()
+{
+       debug_print("LH: viewer_create\n");
+
+       LHViewer *viewer = g_new0(LHViewer, 1);
+       viewer->mimeviewer.factory = &lh_viewer_factory;
+       viewer->widget = lh_widget_new();
+
+       viewer->mimeviewer.get_widget = lh_get_widget;
+       viewer->mimeviewer.show_mimepart = lh_show_mimepart;
+
+       viewer->mimeviewer.clear_viewer = lh_clear_viewer;
+       viewer->mimeviewer.destroy_viewer = lh_destroy_viewer;
+
+       viewer->vbox = gtk_vbox_new(FALSE, 0);
+
+       GtkWidget *w = lh_widget_get_widget(viewer->widget);
+       gtk_box_pack_start(GTK_BOX(viewer->vbox), w,
+                       TRUE, TRUE, 1);
+
+       gtk_widget_show_all(viewer->vbox);
+
+       return (MimeViewer *)viewer;
+}
+