/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-mail-display-popup-prefer-plain.h"
#include "mail/e-mail-display-popup-extension.h"
#include "mail/e-mail-display.h"
#include <shell/e-shell.h>
#include <shell/e-shell-window.h>
#include "mail/e-mail-browser.h"
#include <libebackend/libebackend.h>
#include <glib/gi18n-lib.h>
#define d(x)
typedef struct _EMailDisplayPopupPreferPlain EMailDisplayPopupPreferPlain;
typedef struct _EMailDisplayPopupPreferPlainClass EMailDisplayPopupPreferPlainClass;
struct _EMailDisplayPopupPreferPlain {
EExtension parent;
WebKitDOMDocument *document;
gchar *text_plain_id;
gchar *text_html_id;
GtkActionGroup *action_group;
};
struct _EMailDisplayPopupPreferPlainClass {
EExtensionClass parent_class;
};
#define E_TYPE_MAIL_DISPLAY_POPUP_PREFER_PLAIN \
(e_mail_display_popup_prefer_plain_get_type ())
#define E_MAIL_DISPLAY_POPUP_PREFER_PLAIN(obj) \
(G_TYPE_CHECK_INSTANCE_CAST \
((obj), E_TYPE_MAIL_DISPLAY_POPUP_PREFER_PLAIN, EMailDisplayPopupPreferPlain))
GType e_mail_display_popup_prefer_plain_get_type (void);
static void e_mail_display_popup_extension_interface_init (EMailDisplayPopupExtensionInterface *iface);
G_DEFINE_DYNAMIC_TYPE_EXTENDED (
EMailDisplayPopupPreferPlain,
e_mail_display_popup_prefer_plain,
E_TYPE_EXTENSION,
0,
G_IMPLEMENT_INTERFACE_DYNAMIC (
E_TYPE_MAIL_DISPLAY_POPUP_EXTENSION,
e_mail_display_popup_extension_interface_init));
static const gchar *ui_webview =
"<ui>"
" <popup name='context'>"
" <placeholder name='custom-actions-2'>"
" <separator/>"
" <menuitem action='show-plain-text-part'/>"
" <menuitem action='show-text-html-part'/>"
" <separator/>"
" </placeholder>"
" </popup>"
"</ui>";
static const gchar *ui_reader =
"<ui>"
" <popup name='mail-preview-popup'>"
" <placeholder name='mail-preview-popup-actions'>"
" <separator/>"
" <menuitem action='show-plain-text-part'/>"
" <menuitem action='show-text-html-part'/>"
" <separator/>"
" </placeholder>"
" </popup>"
"</ui>";
static void
toggle_part (GtkAction *action,
EMailDisplayPopupExtension *extension)
{
EMailDisplayPopupPreferPlain *pp_extension = (EMailDisplayPopupPreferPlain *) extension;
WebKitDOMDocument *doc = pp_extension->document;
WebKitDOMDOMWindow *window;
WebKitDOMElement *frame_element;
SoupURI *soup_uri;
GHashTable *query;
gchar *uri;
uri = webkit_dom_document_get_document_uri (doc);
soup_uri = soup_uri_new (uri);
g_free (uri);
query = soup_form_decode (soup_uri->query);
g_hash_table_replace (query, g_strdup ("part_id"),
pp_extension->text_html_id ?
pp_extension->text_html_id :
pp_extension->text_plain_id);
g_hash_table_replace (query, g_strdup ("mime_type"),
pp_extension->text_html_id ?
(gpointer) "text/html" :
(gpointer) "text/plain");
soup_uri_set_query_from_form (soup_uri, query);
g_hash_table_destroy (query);
uri = soup_uri_to_string (soup_uri, FALSE);
soup_uri_free (soup_uri);
/* Get frame's window and from the window the actual <iframe> element */
window = webkit_dom_document_get_default_view (doc);
frame_element = webkit_dom_dom_window_get_frame_element (window);
webkit_dom_html_iframe_element_set_src (
WEBKIT_DOM_HTML_IFRAME_ELEMENT (frame_element), uri);
g_free (uri);
}
GtkActionEntry entries[] = {
{ "show-plain-text-part",
NULL,
N_("Display plain text version"),
NULL,
N_("Display plain text version of multipart/alternative message"),
NULL
},
{ "show-text-html-part",
NULL,
N_("Display HTML version"),
NULL,
N_("Display HTML version of multipart/alternative message"),
NULL
}
};
const gint ID_LEN = G_N_ELEMENTS(".alternative-prefer-plain.");
static void
set_text_plain_id (EMailDisplayPopupPreferPlain *extension,
const gchar *id)
{
g_free (extension->text_plain_id);
extension->text_plain_id = g_strdup (id);
}
static void
set_text_html_id (EMailDisplayPopupPreferPlain *extension,
const gchar *id)
{
g_free (extension->text_html_id);
extension->text_html_id = g_strdup (id);
}
static GtkActionGroup*
create_group (EMailDisplayPopupExtension *extension)
{
EExtensible *extensible;
EWebView *web_view;
GtkUIManager *ui_manager;
GtkActionGroup *group;
GtkAction *action;
EShell *shell;
GtkWindow *shell_window;
extensible = e_extension_get_extensible (E_EXTENSION (extension));
web_view = E_WEB_VIEW (extensible);
group = gtk_action_group_new ("prefer-plain");
gtk_action_group_add_actions (group, entries, G_N_ELEMENTS (entries), NULL);
ui_manager = e_web_view_get_ui_manager (web_view);
gtk_ui_manager_insert_action_group (ui_manager, group, 0);
gtk_ui_manager_add_ui_from_string (ui_manager, ui_webview, -1, NULL);
action = gtk_action_group_get_action (group, "show-plain-text-part");
g_signal_connect (action, "activate",
G_CALLBACK (toggle_part), extension);
action = gtk_action_group_get_action (group, "show-text-html-part");
g_signal_connect (action, "activate",
G_CALLBACK (toggle_part), extension);
shell = e_shell_get_default ();
shell_window = e_shell_get_active_window (shell);
if (E_IS_SHELL_WINDOW (shell_window)) {
ui_manager = e_shell_window_get_ui_manager (E_SHELL_WINDOW (shell_window));
} else if (E_IS_MAIL_BROWSER (shell_window)) {
ui_manager = e_mail_browser_get_ui_manager (E_MAIL_BROWSER (shell_window));
} else {
return NULL;
}
gtk_ui_manager_insert_action_group (ui_manager, group, 0);
gtk_ui_manager_add_ui_from_string (ui_manager, ui_reader, -1, NULL);
return group;
}
static void
mail_display_popup_prefer_plain_update_actions (EMailDisplayPopupExtension *extension,
WebKitHitTestResult *context)
{
EMailDisplay *display;
GtkAction *action;
WebKitDOMNode *node;
gchar *uri, *part_id, *pos, *prefix;
SoupURI *soup_uri;
GHashTable *query;
EMailPartList *part_list;
GSList *iter;
gboolean is_text_plain;
const gchar *action_name;
EMailDisplayPopupPreferPlain *pp_extension;
display = E_MAIL_DISPLAY (e_extension_get_extensible (
E_EXTENSION (extension)));
pp_extension = E_MAIL_DISPLAY_POPUP_PREFER_PLAIN (extension);
if (!pp_extension->action_group)
pp_extension->action_group = create_group (extension);
g_object_get (context, "inner-node", &node, NULL);
if (!node) {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
return;
}
pp_extension->document = webkit_dom_node_get_owner_document (node);
uri = webkit_dom_document_get_document_uri (pp_extension->document);
soup_uri = soup_uri_new (uri);
if (!soup_uri || !soup_uri->query) {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
if (soup_uri)
soup_uri_free (soup_uri);
g_free (uri);
return;
}
query = soup_form_decode (soup_uri->query);
part_id = g_hash_table_lookup (query, "part_id");
if (part_id == NULL) {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
g_hash_table_destroy (query);
soup_uri_free (soup_uri);
g_free (uri);
return;
}
pos = strstr (part_id, ".alternative-prefer-plain.");
if (!pos) {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
g_hash_table_destroy (query);
soup_uri_free (soup_uri);
g_free (uri);
return;
}
/* Don't display the actions on any other than text/plain or text/html parts */
if (!strstr (pos, "plain_text") && !strstr (pos, "text_html")) {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
g_hash_table_destroy (query);
soup_uri_free (soup_uri);
g_free (uri);
return;
}
/* Check whether the displayed part is text_plain */
is_text_plain = (strstr (pos + ID_LEN, "plain_text") != NULL);
/* It is! Hide the menu action */
if (is_text_plain) {
action = gtk_action_group_get_action (
pp_extension->action_group, "show-plain-text-part");
gtk_action_set_visible (action, FALSE);
} else {
action = gtk_action_group_get_action (
pp_extension->action_group, "show-text-html-part");
gtk_action_set_visible (action, FALSE);
}
/* Now check whether HTML version exists, if it does enable the action */
prefix = g_strndup (part_id, (pos - part_id) + ID_LEN - 1);
action_name = NULL;
part_list = e_mail_display_get_parts_list (display);
for (iter = part_list->list; iter; iter = g_slist_next (iter)) {
EMailPart *p = iter->data;
if (!p)
continue;
if (g_str_has_prefix (p->id, prefix) &&
(strstr (p->id, "text_html") || strstr (p->id, "plain_text"))) {
pos = strstr (p->id, ".alternative-prefer-plain.");
if (is_text_plain) {
if (strstr (pos + ID_LEN, "text_html") != NULL) {
action_name = "show-text-html-part";
set_text_html_id (pp_extension, p->id);
set_text_plain_id (pp_extension, NULL);
break;
}
} else {
if (strstr (pos + ID_LEN, "plain_text") != NULL) {
action_name = "show-plain-text-part";
set_text_html_id (pp_extension, NULL);
set_text_plain_id (pp_extension, p->id);
break;
}
}
}
}
if (action_name) {
action = gtk_action_group_get_action (
pp_extension->action_group, action_name);
gtk_action_group_set_visible (pp_extension->action_group, TRUE);
gtk_action_set_visible (action, TRUE);
} else {
gtk_action_group_set_visible (pp_extension->action_group, FALSE);
}
g_free (prefix);
g_hash_table_destroy (query);
soup_uri_free (soup_uri);
g_free (uri);
}
void
e_mail_display_popup_prefer_plain_type_register (GTypeModule *type_module)
{
e_mail_display_popup_prefer_plain_register_type (type_module);
}
static void
e_mail_display_popup_prefer_plain_finalize (GObject *object)
{
EMailDisplayPopupPreferPlain *extension;
extension = E_MAIL_DISPLAY_POPUP_PREFER_PLAIN (object);
g_free (extension->text_html_id);
g_free (extension->text_plain_id);
g_object_unref (extension->action_group);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (e_mail_display_popup_prefer_plain_parent_class)->
finalize (object);
}
static void
e_mail_display_popup_prefer_plain_class_init (EMailDisplayPopupPreferPlainClass *class)
{
EExtensionClass *extension_class;
GObjectClass *object_class;
extension_class = E_EXTENSION_CLASS (class);
extension_class->extensible_type = E_TYPE_MAIL_DISPLAY;
object_class = G_OBJECT_CLASS (class);
object_class->finalize = e_mail_display_popup_prefer_plain_finalize;
}
static void
e_mail_display_popup_extension_interface_init (EMailDisplayPopupExtensionInterface *iface)
{
iface->update_actions = mail_display_popup_prefer_plain_update_actions;
}
void
e_mail_display_popup_prefer_plain_class_finalize (EMailDisplayPopupPreferPlainClass *class)
{
}
static void
e_mail_display_popup_prefer_plain_init (EMailDisplayPopupPreferPlain *extension)
{
extension->action_group = NULL;
extension->text_html_id = NULL;
extension->text_plain_id = NULL;
extension->document = NULL;
}