[evolution] I#1176 - cmd-line: Use folder: URI to switch Mail view folder

[Milan Crha <mcrha src gnome org>]

commit 4c3455ccddc10e0ad9bec8f693aa0e579bc0c984
Author: Milan Crha <mcrha redhat com>
Date:   Tue Oct 27 15:40:36 2020 +0100

    I#1176 - cmd-line: Use folder: URI to switch Mail view folder
    
    Closes https://gitlab.gnome.org/GNOME/evolution/-/issues/1176

 src/modules/mail/e-mail-shell-backend.c | 95 ++++++++++++++++++++++++++++++++-
 1 file changed, 93 insertions(+), 2 deletions(-)
---
diff --git a/src/modules/mail/e-mail-shell-backend.c b/src/modules/mail/e-mail-shell-backend.c
index 6403a347e3..4b31c7385b 100644
--- a/src/modules/mail/e-mail-shell-backend.c
+++ b/src/modules/mail/e-mail-shell-backend.c
@@ -494,16 +494,107 @@ exit:
        return TRUE;
 }
 
+static EShellWindow *
+mail_shell_backend_get_mail_window (EShell *shell)
+{
+       GList *link;
+
+       for (link = gtk_application_get_windows (GTK_APPLICATION (shell)); link; link = g_list_next (link)) {
+               GtkWindow *window = GTK_WINDOW (link->data);
+
+               if (E_IS_SHELL_WINDOW (window)) {
+                       EShellWindow *shell_window;
+                       const gchar *active_view;
+
+                       shell_window = E_SHELL_WINDOW (window);
+                       active_view = e_shell_window_get_active_view (shell_window);
+
+                       if (g_strcmp0 (active_view, "mail") == 0)
+                               return shell_window;
+               }
+       }
+
+       return E_SHELL_WINDOW (e_shell_create_shell_window (shell, "mail"));
+}
+
+static void
+mail_shell_backend_select_folder_uri (EMailShellBackend *mail_shell_backend,
+                                     const gchar *in_uri)
+{
+       EMailSession *mail_session;
+       CamelSession *session;
+       CamelStore *store = NULL;
+       gchar *decoded_uri = NULL;
+       gchar *folder_uri = NULL;
+       const gchar *uri = in_uri;
+
+       g_return_if_fail (E_IS_MAIL_SHELL_BACKEND (mail_shell_backend));
+       g_return_if_fail (uri != NULL);
+       g_return_if_fail (g_str_has_prefix (uri, "folder:"));
+
+       mail_session = e_mail_backend_get_session (E_MAIL_BACKEND (mail_shell_backend));
+       session = CAMEL_SESSION (mail_session);
+
+       if (strchr (uri, '%')) {
+               decoded_uri = g_uri_unescape_string (uri, NULL);
+
+               if (decoded_uri)
+                       uri = decoded_uri;
+       }
+
+       if (!e_mail_folder_uri_parse (session, uri, &store, NULL, NULL)) {
+               folder_uri = em_utils_account_path_to_folder_uri (session, uri + 7 /* strlen ("folder:") */);
+
+               if (folder_uri) {
+                       if (e_mail_folder_uri_parse (session, folder_uri, &store, NULL, NULL))
+                               uri = folder_uri;
+               }
+       }
+
+       if (store) {
+               EShellWindow *window;
+               EShell *shell;
+
+               shell = e_shell_backend_get_shell (E_SHELL_BACKEND (mail_shell_backend));
+               window = mail_shell_backend_get_mail_window (shell);
+
+               if (window) {
+                       EShellView *shell_view;
+
+                       shell_view = e_shell_window_get_shell_view (window, "mail");
+
+                       if (shell_view) {
+                               EShellSidebar *shell_sidebar;
+                               EMFolderTree *folder_tree;
+
+                               shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
+                               folder_tree = e_mail_shell_sidebar_get_folder_tree (E_MAIL_SHELL_SIDEBAR 
(shell_sidebar));
+
+                               em_folder_tree_set_selected (folder_tree, folder_uri ? folder_uri : uri, 
FALSE);
+                       }
+
+                       gtk_window_present (GTK_WINDOW (window));
+               }
+       }
+
+       g_clear_object (&store);
+       g_free (decoded_uri);
+       g_free (folder_uri);
+}
+
 static gboolean
 mail_shell_backend_handle_uri_cb (EShell *shell,
                                   const gchar *uri,
                                   EMailShellBackend *mail_shell_backend)
 {
-       gboolean handled = FALSE;
+       gboolean handled = TRUE;
 
        if (g_str_has_prefix (uri, "mailto:";)) {
                em_utils_compose_new_message_with_mailto (shell, uri, NULL);
-               handled = TRUE;
+       } else if (g_str_has_prefix (uri, "folder:")) {
+               mail_shell_backend_select_folder_uri (mail_shell_backend, uri);
+       } else {
+               handled = FALSE;
        }
 
        return handled;