2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999,2000 Hiroyuki Yamamoto
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 2 of the License, or
8 * (at your option) any later version.
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 #include <gdk/gdkkeysyms.h>
28 #include <gtk/gtkscrolledwindow.h>
29 #include <gtk/gtkctree.h>
30 #include <gtk/gtkvbox.h>
31 #include <gtk/gtkvpaned.h>
32 #include <gtk/gtktext.h>
33 #include <gtk/gtksignal.h>
34 #include <gtk/gtkmenu.h>
35 #include <gtk/gtkdnd.h>
36 #include <gtk/gtkselection.h>
45 #include "summaryview.h"
48 #include "alertpanel.h"
51 #include "prefs_common.h"
61 #define N_MIMEVIEW_COLS 3
63 static void mimeview_set_multipart_tree (MimeView *mimeview,
65 GtkCTreeNode *parent);
66 static GtkCTreeNode *mimeview_append_part (MimeView *mimeview,
68 GtkCTreeNode *parent);
69 static void mimeview_show_message_part (MimeView *mimeview,
71 static void mimeview_show_image_part (MimeView *mimeview,
73 static void mimeview_change_view_type (MimeView *mimeview,
75 static void mimeview_clear (MimeView *mimeview);
77 static void mimeview_selected (GtkCTree *ctree,
81 static void mimeview_start_drag (GtkWidget *widget,
85 static void mimeview_button_pressed (GtkWidget *widget,
86 GdkEventButton *event,
88 static void mimeview_key_pressed (GtkWidget *widget,
92 static void mimeview_drag_data_get (GtkWidget *widget,
93 GdkDragContext *drag_context,
94 GtkSelectionData *selection_data,
99 static void mimeview_display_as_text (MimeView *mimeview);
100 static void mimeview_save_as (MimeView *mimeview);
101 static void mimeview_launch (MimeView *mimeview);
102 static void mimeview_view_file (const gchar *filename,
105 static void mimeview_check_signature (MimeView *mimeview);
108 static GtkItemFactoryEntry mimeview_popup_entries[] =
110 {N_("/_Open"), NULL, mimeview_launch, 0, NULL},
111 {N_("/_Display as text"), NULL, mimeview_display_as_text, 0, NULL},
112 {N_("/_Save as..."), NULL, mimeview_save_as, 0, NULL}
115 {N_("/_Check signature"), NULL, mimeview_check_signature, 0, NULL}
119 static GtkTargetEntry mimeview_mime_types[] =
121 {"text/uri-list", 0, 0}
124 MimeView *mimeview_create(void)
129 GtkWidget *scrolledwin;
132 GtkWidget *popupmenu;
133 GtkItemFactory *popupfactory;
135 gchar *titles[] = {_("MIME Type"), _("Size"), _("Name")};
139 debug_print(_("Creating MIME view...\n"));
140 mimeview = g_new0(MimeView, 1);
142 scrolledwin = gtk_scrolled_window_new(NULL, NULL);
143 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
144 GTK_POLICY_AUTOMATIC,
146 gtk_widget_set_usize(scrolledwin, -1, 80);
148 ctree = gtk_sctree_new_with_titles(N_MIMEVIEW_COLS, 0, titles);
149 gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);//SINGLE);
150 gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
151 gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_SIZE,
153 gtk_clist_set_column_width(GTK_CLIST(ctree), COL_MIMETYPE, 240);
154 gtk_clist_set_column_width(GTK_CLIST(ctree), COL_SIZE, 64);
155 for (i = 0; i < N_MIMEVIEW_COLS; i++)
156 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
158 gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
160 gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
161 GTK_SIGNAL_FUNC(mimeview_selected), mimeview);
162 gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
163 GTK_SIGNAL_FUNC(mimeview_button_pressed), mimeview);
164 gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
165 GTK_SIGNAL_FUNC(mimeview_key_pressed), mimeview);
166 gtk_signal_connect(GTK_OBJECT (ctree),"start_drag",
167 GTK_SIGNAL_FUNC (mimeview_start_drag), mimeview);
168 gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_get",
169 GTK_SIGNAL_FUNC(mimeview_drag_data_get), mimeview);
171 vbox = gtk_vbox_new(FALSE, 0);
173 paned = gtk_vpaned_new();
174 gtk_paned_add1(GTK_PANED(paned), scrolledwin);
175 gtk_paned_add2(GTK_PANED(paned), vbox);
176 gtk_widget_show_all(paned);
178 n_entries = sizeof(mimeview_popup_entries) /
179 sizeof(mimeview_popup_entries[0]);
180 popupmenu = menu_create_items(mimeview_popup_entries, n_entries,
181 "<MimeView>", &popupfactory, mimeview);
183 mimeview->paned = paned;
184 mimeview->scrolledwin = scrolledwin;
185 mimeview->ctree = ctree;
186 mimeview->vbox = vbox;
187 mimeview->popupmenu = popupmenu;
188 mimeview->popupfactory = popupfactory;
193 void mimeview_init(MimeView *mimeview)
198 * Check whether the message is OpenPGP signed
201 static gboolean mimeview_is_signed(MimeView *mimeview)
205 debug_print("mimeview_is signed of %p\n", mimeview);
207 if (!mimeview) return FALSE;
208 if (!mimeview->opened) return FALSE;
210 debug_print("mimeview_is_signed: open\n" );
212 if (!mimeview->file) return FALSE;
214 debug_print("mimeview_is_signed: file\n" );
216 partinfo = gtk_ctree_node_get_row_data
217 (GTK_CTREE(mimeview->ctree), mimeview->opened);
218 g_return_val_if_fail(partinfo != NULL, FALSE);
220 /* walk the tree and see whether there is a signature somewhere */
222 if (rfc2015_has_signature(partinfo))
224 } while ((partinfo = partinfo->parent) != NULL);
226 debug_print("mimeview_is_signed: FALSE\n" );
231 static void set_unchecked_signature(MimeInfo *mimeinfo)
233 MimeInfo *sig_partinfo;
235 sig_partinfo = rfc2015_find_signature(mimeinfo);
236 if (sig_partinfo == NULL) return;
238 g_free(sig_partinfo->sigstatus);
239 sig_partinfo->sigstatus =
240 g_strdup(_("Select \"Check signature\" to check"));
242 g_free(sig_partinfo->sigstatus_full);
243 sig_partinfo->sigstatus_full = NULL;
245 #endif /* USE_GPGME */
247 void mimeview_show_message(MimeView *mimeview, MimeInfo *mimeinfo,
250 GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
255 mimeview_clear(mimeview);
257 g_return_if_fail(file != NULL);
258 g_return_if_fail(mimeinfo != NULL);
260 mimeview->mimeinfo = mimeinfo;
262 if ((fp = fopen(file, "r")) == NULL) {
263 FILE_OP_ERROR(file, "fopen");
266 mimeview->file = g_strdup(file);
269 if (mimeinfo->mime_type == MIME_MULTIPART) {
270 if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0)
272 while (fgets(buf, sizeof(buf), fp) != NULL)
273 if (buf[0] == '\r' || buf[0] == '\n') break;
276 procmime_scan_multipart_message(mimeinfo, fp);
278 if (prefs_common.auto_check_signatures)
279 rfc2015_check_signature(mimeinfo, fp);
281 set_unchecked_signature(mimeinfo);
285 gtk_signal_handler_block_by_func(GTK_OBJECT(ctree), mimeview_selected,
288 mimeview_set_multipart_tree(mimeview, mimeinfo, NULL);
290 gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
291 mimeview_selected, mimeview);
293 if ((node = gtk_ctree_node_nth(ctree, 0))) {
294 gtk_ctree_select(ctree, node);
295 gtk_widget_grab_focus(mimeview->ctree);
299 void mimeview_destroy(MimeView *mimeview)
301 procmime_mimeinfo_free_all(mimeview->mimeinfo);
302 g_free(mimeview->file);
306 static void mimeview_set_multipart_tree(MimeView *mimeview,
308 GtkCTreeNode *parent)
310 g_return_if_fail(mimeinfo != NULL);
312 if (!mimeinfo->main && mimeinfo->parent)
313 parent = mimeview_append_part(mimeview, mimeinfo, parent);
315 if (mimeinfo->sub && mimeinfo->sub->children)
316 mimeview_set_multipart_tree(mimeview, mimeinfo->sub, parent);
318 if (mimeinfo->children) {
321 child = mimeinfo->children;
323 mimeview_set_multipart_tree(mimeview, child, parent);
329 static gchar *get_part_name(MimeInfo *partinfo)
332 if (partinfo->sigstatus)
333 return partinfo->sigstatus;
337 return partinfo->name;
338 else if (partinfo->filename)
339 return partinfo->filename;
344 static GtkCTreeNode *mimeview_append_part(MimeView *mimeview,
346 GtkCTreeNode *parent)
348 GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
350 gchar *str[N_MIMEVIEW_COLS];
353 partinfo->content_type ? partinfo->content_type : "";
354 str[COL_SIZE] = to_human_readable(partinfo->size);
355 str[COL_NAME] = get_part_name(partinfo);
357 node = gtk_ctree_insert_node(ctree, parent, NULL, str, 0,
358 NULL, NULL, NULL, NULL,
360 gtk_ctree_node_set_row_data(ctree, node, partinfo);
365 static void mimeview_show_message_part(MimeView *mimeview, MimeInfo *partinfo)
373 if (!partinfo) return;
376 for (pi = partinfo; pi && !pi->plaintextfile ; pi = pi->parent)
378 fname = pi ? pi->plaintextfile : mimeview->file;
380 fname = mimeview->file;
381 #endif /* USE_GPGME */
384 if ((fp = fopen(fname, "r")) == NULL) {
385 FILE_OP_ERROR(fname, "fopen");
389 if (fseek(fp, partinfo->fpos, SEEK_SET) < 0) {
390 FILE_OP_ERROR(mimeview->file, "fseek");
395 mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
396 textview_show_part(mimeview->textview, partinfo, fp);
401 static void mimeview_show_image_part(MimeView *mimeview, MimeInfo *partinfo)
405 if (!partinfo) return;
407 filename = procmime_get_tmp_file_name(partinfo);
409 if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
411 (_("Can't get the part of multipart message."));
413 mimeview_change_view_type(mimeview, MIMEVIEW_IMAGE);
414 imageview_show_image(mimeview->imageview, partinfo, filename);
421 static void mimeview_change_view_type(MimeView *mimeview, MimeViewType type)
423 TextView *textview = mimeview->textview;
424 ImageView *imageview = mimeview->imageview;
426 if (mimeview->type == type) return;
430 gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
431 GTK_WIDGET_PTR(textview));
432 gtk_container_add(GTK_CONTAINER(mimeview->vbox),
433 GTK_WIDGET_PTR(imageview));
436 gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
437 GTK_WIDGET_PTR(imageview));
438 gtk_container_add(GTK_CONTAINER(mimeview->vbox),
439 GTK_WIDGET_PTR(textview));
445 mimeview->type = type;
448 static void mimeview_clear(MimeView *mimeview)
450 GtkCList *clist = GTK_CLIST(mimeview->ctree);
452 procmime_mimeinfo_free_all(mimeview->mimeinfo);
453 mimeview->mimeinfo = NULL;
455 gtk_clist_clear(clist);
456 textview_clear(mimeview->textview);
458 mimeview->opened = NULL;
460 g_free(mimeview->file);
461 mimeview->file = NULL;
464 static void mimeview_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
469 if (mimeview->opened == node) return;
470 mimeview->opened = node;
471 gtk_ctree_node_moveto(ctree, node, -1, 0.5, 0);
473 partinfo = gtk_ctree_node_get_row_data(ctree, node);
474 if (!partinfo) return;
476 switch (partinfo->mime_type) {
479 case MIME_MESSAGE_RFC822:
481 mimeview_show_message_part(mimeview, partinfo);
483 #if (HAVE_GDK_PIXBUF || HAVE_GDK_IMLIB)
485 mimeview_show_image_part(mimeview, partinfo);
489 mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
491 if (g_strcasecmp(partinfo->content_type,
492 "application/pgp-signature") == 0)
493 textview_show_signature_part(mimeview->textview,
497 textview_show_mime_part(mimeview->textview, partinfo);
502 static void mimeview_start_drag (GtkWidget *widget, gint button,
503 GdkEvent *event, MimeView *mimeview)
506 GdkDragContext *context;
510 g_return_if_fail(mimeview != NULL);
511 ctree = GTK_CTREE(mimeview->ctree);
512 partinfo = gtk_ctree_node_get_row_data(ctree, mimeview->opened);
513 if (partinfo->filename == NULL && partinfo->name == NULL) return;
515 list = gtk_target_list_new(mimeview_mime_types, 1);
516 context = gtk_drag_begin(widget, list,
517 GDK_ACTION_COPY, button, event);
518 gtk_drag_set_icon_default(context);
521 static void mimeview_button_pressed(GtkWidget *widget, GdkEventButton *event,
524 GtkCList *clist = GTK_CLIST(widget);
530 if (event->button == 2 || event->button == 3) {
531 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
534 gtk_clist_unselect_all(clist);
535 gtk_clist_select_row(clist, row, column);
536 gtkut_clist_set_focus_row(clist, row);
539 if (event->button == 2 ||
540 (event->button == 1 && event->type == GDK_2BUTTON_PRESS)) {
541 /* call external program for image, audio or html */
542 mimeview_launch(mimeview);
543 } else if (event->button == 3) {
544 partinfo = gtk_ctree_node_get_row_data
545 (GTK_CTREE(mimeview->ctree), mimeview->opened);
546 if (partinfo && (partinfo->mime_type == MIME_TEXT ||
547 partinfo->mime_type == MIME_TEXT_HTML ||
548 partinfo->mime_type == MIME_MESSAGE_RFC822 ||
549 partinfo->mime_type == MIME_IMAGE ||
550 partinfo->mime_type == MIME_MULTIPART))
551 menu_set_sensitive(mimeview->popupfactory,
552 "/Display as text", FALSE);
554 menu_set_sensitive(mimeview->popupfactory,
555 "/Display as text", TRUE);
557 menu_set_sensitive(mimeview->popupfactory,
559 mimeview_is_signed(mimeview));
562 gtk_menu_popup(GTK_MENU(mimeview->popupmenu),
563 NULL, NULL, NULL, NULL,
564 event->button, event->time);
568 #define BREAK_ON_MODIFIER_KEY() \
569 if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
571 static void mimeview_key_pressed(GtkWidget *widget, GdkEventKey *event,
574 SummaryView *summaryview;
575 GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
579 if (!mimeview->opened) return;
581 switch (event->keyval) {
583 if (textview_scroll_page(mimeview->textview, FALSE)) return;
585 node = GTK_CTREE_NODE_NEXT(mimeview->opened);
587 gtk_sctree_unselect_all(GTK_SCTREE(ctree));
588 gtk_sctree_select(GTK_SCTREE(ctree), node);
594 textview_scroll_page(mimeview->textview, TRUE);
597 textview_scroll_one_line(mimeview->textview,
598 (event->state & GDK_MOD1_MASK) != 0);
602 BREAK_ON_MODIFIER_KEY();
603 if (!GTK_CTREE_NODE_NEXT(mimeview->opened)) break;
605 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
606 GTK_SCROLL_STEP_FORWARD, 0.0);
610 BREAK_ON_MODIFIER_KEY();
611 if (!GTK_CTREE_NODE_PREV(mimeview->opened)) break;
613 gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
614 GTK_SCROLL_STEP_BACKWARD, 0.0);
617 BREAK_ON_MODIFIER_KEY();
618 mimeview_save_as(mimeview);
621 BREAK_ON_MODIFIER_KEY();
622 mimeview_display_as_text(mimeview);
625 BREAK_ON_MODIFIER_KEY();
626 mimeview_launch(mimeview);
631 if (!mimeview->messageview->mainwin) return;
632 summaryview = mimeview->messageview->mainwin->summaryview;
633 summary_pass_key_press_event(summaryview, event);
636 static void mimeview_drag_data_get(GtkWidget *widget,
637 GdkDragContext *drag_context,
638 GtkSelectionData *selection_data,
643 gchar *filename, *uriname;
646 if (!mimeview->opened) return;
647 if (!mimeview->file) return;
649 partinfo = gtk_ctree_node_get_row_data
650 (GTK_CTREE(mimeview->ctree), mimeview->opened);
651 if (!partinfo) return;
652 if (!partinfo->filename && !partinfo->name) return;
654 filename = partinfo->filename ? partinfo->filename : partinfo->name;
655 filename = g_basename(filename);
656 if (*filename == '\0') return;
658 filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
661 if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
663 (_("Can't save the part of multipart message."));
665 uriname = g_strconcat("file:/", filename, NULL);
666 gtk_selection_data_set(selection_data, selection_data->target, 8,
667 uriname, strlen(uriname));
673 static void mimeview_display_as_text(MimeView *mimeview)
677 if (!mimeview->opened) return;
679 partinfo = gtk_ctree_node_get_row_data
680 (GTK_CTREE(mimeview->ctree), mimeview->opened);
681 mimeview_show_message_part(mimeview, partinfo);
684 static void mimeview_save_as(MimeView *mimeview)
689 if (!mimeview->opened) return;
690 if (!mimeview->file) return;
692 partinfo = gtk_ctree_node_get_row_data
693 (GTK_CTREE(mimeview->ctree), mimeview->opened);
694 g_return_if_fail(partinfo != NULL);
696 filename = filesel_select_file
698 partinfo->filename ? partinfo->filename : partinfo->name);
699 if (!filename) return;
700 if (is_file_exist(filename)) {
703 aval = alertpanel(_("Overwrite"),
704 _("Overwrite existing file?"),
705 _("OK"), _("Cancel"), NULL);
706 if (G_ALERTDEFAULT != aval) return;
709 if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
711 (_("Can't save the part of multipart message."));
714 static void mimeview_launch(MimeView *mimeview)
719 if (!mimeview->opened) return;
720 if (!mimeview->file) return;
722 partinfo = gtk_ctree_node_get_row_data
723 (GTK_CTREE(mimeview->ctree), mimeview->opened);
724 g_return_if_fail(partinfo != NULL);
726 filename = procmime_get_tmp_file_name(partinfo);
728 if (procmime_get_part(filename, mimeview->file, partinfo) < 0)
730 (_("Can't save the part of multipart message."));
732 mimeview_view_file(filename, partinfo);
737 static void mimeview_view_file(const gchar *filename, MimeInfo *partinfo)
739 static gchar *default_image_cmdline = "display '%s'";
740 static gchar *default_audio_cmdline = "play '%s'";
741 static gchar *default_html_cmdline =
742 "netscape -remote 'openURL(%s,raise)'";
743 static gchar *mime_cmdline = "metamail -d -b -c %s '%s'";
750 if (MIME_APPLICATION_OCTET_STREAM == partinfo->mime_type) {
752 } else if (MIME_IMAGE == partinfo->mime_type) {
753 cmd = prefs_common.mime_image_viewer;
754 def_cmd = default_image_cmdline;
755 } else if (MIME_AUDIO == partinfo->mime_type) {
756 cmd = prefs_common.mime_audio_player;
757 def_cmd = default_audio_cmdline;
758 } else if (MIME_TEXT_HTML == partinfo->mime_type) {
759 cmd = prefs_common.uri_cmd;
760 def_cmd = default_html_cmdline;
762 g_snprintf(m_buf, sizeof(m_buf), mime_cmdline,
763 partinfo->content_type, "%s");
768 if (cmd && (p = strchr(cmd, '%')) && *(p + 1) == 's' &&
770 g_snprintf(buf, sizeof(buf), cmd, filename);
773 g_warning(_("MIME viewer command line is invalid: `%s'"), cmd);
775 g_snprintf(buf, sizeof(buf), def_cmd, filename);
780 execute_command_line(buf);
784 static void update_node_name(GtkCTree *ctree, GtkCTreeNode *node,
790 partinfo = gtk_ctree_node_get_row_data(ctree, node);
791 g_return_if_fail(partinfo != NULL);
793 part_name = get_part_name(partinfo);
794 gtk_ctree_node_set_text(ctree, node, COL_NAME, part_name);
797 static void mimeview_update_names(MimeView *mimeview)
799 GtkCTree *ctree = GTK_CTREE(mimeview->ctree);
801 gtk_ctree_pre_recursive(ctree, NULL, update_node_name, NULL);
804 static void mimeview_update_signature_info(MimeView *mimeview)
808 if (!mimeview) return;
809 if (!mimeview->opened) return;
811 partinfo = gtk_ctree_node_get_row_data
812 (GTK_CTREE(mimeview->ctree), mimeview->opened);
813 if (!partinfo) return;
815 if (g_strcasecmp(partinfo->content_type,
816 "application/pgp-signature") == 0) {
817 mimeview_change_view_type(mimeview, MIMEVIEW_TEXT);
818 textview_show_signature_part(mimeview->textview, partinfo);
822 static void mimeview_check_signature(MimeView *mimeview)
828 g_return_if_fail (mimeview_is_signed(mimeview));
830 mimeinfo = gtk_ctree_node_get_row_data
831 (GTK_CTREE(mimeview->ctree), mimeview->opened);
832 g_return_if_fail(mimeinfo != NULL);
833 g_return_if_fail(mimeview->file != NULL);
835 while (mimeinfo->parent)
836 mimeinfo = mimeinfo->parent;
838 if ((fp = fopen(mimeview->file, "r")) == NULL) {
839 FILE_OP_ERROR(mimeview->file, "fopen");
844 if (mimeinfo->mime_type == MIME_MULTIPART) {
845 if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0)
846 FILE_OP_ERROR(mimeview->file, "fseek");
847 while (fgets(buf, sizeof(buf), fp) != NULL)
848 if (buf[0] == '\r' || buf[0] == '\n') break;
851 procmime_scan_multipart_message(mimeinfo, fp);
852 rfc2015_check_signature(mimeinfo, fp);
855 mimeview_update_names(mimeview);
856 mimeview_update_signature_info(mimeview);
858 #endif /* USE_GPGME */