diff options
Diffstat (limited to 'modules/prefer-plain/e-mail-display-popup-prefer-plain.c')
| -rw-r--r-- | modules/prefer-plain/e-mail-display-popup-prefer-plain.c | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/modules/prefer-plain/e-mail-display-popup-prefer-plain.c b/modules/prefer-plain/e-mail-display-popup-prefer-plain.c new file mode 100644 index 0000000000..75c74db71e --- /dev/null +++ b/modules/prefer-plain/e-mail-display-popup-prefer-plain.c @@ -0,0 +1,380 @@ +/* + * 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 { + EExtension parent; + + WebKitDOMDocument *document; + gchar *text_plain_id; + gchar *text_html_id; + + GtkActionGroup *action_group; + +} EMailDisplayPopupPreferPlain; + +typedef struct _EMailDisplayPopupPreferPlainClass { + EExtensionClass parent_class; +} EMailDisplayPopupPreferPlainClass; + +#define E_MAIL_DISPLAY_POPUP_PREFER_PLAIN(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST \ + ((obj), e_mail_display_popup_prefer_plain_get_type(), 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); + + 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_class_init (EMailDisplayPopupPreferPlainClass *klass) +{ + EExtensionClass *extension_class; + + e_mail_display_popup_prefer_plain_parent_class = g_type_class_peek_parent (klass); + + extension_class = E_EXTENSION_CLASS (klass); + extension_class->extensible_type = E_TYPE_MAIL_DISPLAY; +} + +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 *klass) +{ + +} + + +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; +} |