[evolution] Bug 545153 - Ask whether to quit with pending operations

[Milan Crha <mcrha src gnome org>]

commit 4646811a3612a7155603bce798304bd5850e2676
Author: Milan Crha <mcrha redhat com>
Date:   Wed Oct 29 21:53:32 2014 +0100

    Bug 545153 - Ask whether to quit with pending operations

 shell/e-shell.c       |   53 ++++++++++++++++++++++++++++++++++++++++++++++++-
 shell/shell.error.xml |    9 ++++++++
 2 files changed, 61 insertions(+), 1 deletions(-)
---
diff --git a/shell/e-shell.c b/shell/e-shell.c
index be8de74..8136d89 100644
--- a/shell/e-shell.c
+++ b/shell/e-shell.c
@@ -67,6 +67,7 @@ struct _EShellPrivate {
 
        guint inhibit_cookie;
        guint set_online_timeout_id;
+       guint prepare_quit_timeout_id;
 
        gulong backend_died_handler_id;
 
@@ -421,6 +422,11 @@ shell_ready_for_quit (EShell *shell,
                shell->priv->inhibit_cookie = 0;
        }
 
+       if (shell->priv->prepare_quit_timeout_id) {
+               g_source_remove (shell->priv->prepare_quit_timeout_id);
+               shell->priv->prepare_quit_timeout_id = 0;
+       }
+
        /* Destroy all watched windows.  Note, we iterate over a -copy-
         * of the watched windows list because the act of destroying a
         * watched window will modify the watched windows list, which
@@ -433,6 +439,20 @@ shell_ready_for_quit (EShell *shell,
                gtk_main_quit ();
 }
 
+static gboolean
+shell_ask_quit_with_pending_activities (EShell *shell)
+{
+       GList *windows;
+
+       windows = gtk_application_get_windows (GTK_APPLICATION (shell));
+
+       return e_alert_run_dialog_for_args (windows ? windows->data : NULL,
+               "shell:ask-quit-with-pending", NULL) == GTK_RESPONSE_OK;
+}
+
+static gboolean
+shell_prepare_for_quit_timeout_cb (gpointer user_data);
+
 static void
 shell_prepare_for_quit (EShell *shell)
 {
@@ -440,8 +460,15 @@ shell_prepare_for_quit (EShell *shell)
        GList *list, *iter;
 
        /* Are preparations already in progress? */
-       if (shell->priv->preparing_for_quit != NULL)
+       if (shell->priv->preparing_for_quit != NULL) {
+               if (shell_ask_quit_with_pending_activities (shell)) {
+                       e_activity_cancel (shell->priv->preparing_for_quit);
+                       camel_operation_cancel_all ();
+
+                       shell_ready_for_quit (shell, shell->priv->preparing_for_quit, TRUE);
+               }
                return;
+       }
 
        application = GTK_APPLICATION (shell);
 
@@ -470,6 +497,9 @@ shell_prepare_for_quit (EShell *shell)
                shell, signals[PREPARE_FOR_QUIT], 0,
                shell->priv->preparing_for_quit);
 
+       shell->priv->prepare_quit_timeout_id =
+               e_named_timeout_add_seconds (60, shell_prepare_for_quit_timeout_cb, shell);
+
        g_object_unref (shell->priv->preparing_for_quit);
 
        /* Desensitize all watched windows to prevent user action. */
@@ -479,6 +509,22 @@ shell_prepare_for_quit (EShell *shell)
 }
 
 static gboolean
+shell_prepare_for_quit_timeout_cb (gpointer user_data)
+{
+       EShell *shell = user_data;
+
+       g_return_val_if_fail (E_IS_SHELL (shell), FALSE);
+       g_return_val_if_fail (shell->priv->preparing_for_quit != 0, FALSE);
+
+       shell->priv->prepare_quit_timeout_id = 0;
+
+       /* This asks whether to quit or wait and does all the work */
+       shell_prepare_for_quit (shell);
+
+       return FALSE;
+}
+
+static gboolean
 shell_request_quit (EShell *shell,
                     EShellQuitReason reason)
 {
@@ -684,6 +730,11 @@ shell_dispose (GObject *object)
                priv->set_online_timeout_id = 0;
        }
 
+       if (priv->prepare_quit_timeout_id) {
+               g_source_remove (priv->prepare_quit_timeout_id);
+               priv->prepare_quit_timeout_id = 0;
+       }
+
        while ((alert = g_queue_pop_head (&priv->alerts)) != NULL) {
                g_signal_handlers_disconnect_by_func (
                        alert, shell_alert_response_cb, object);
diff --git a/shell/shell.error.xml b/shell/shell.error.xml
index 8c5a2e6..a0c59cf 100644
--- a/shell/shell.error.xml
+++ b/shell/shell.error.xml
@@ -26,4 +26,13 @@ If you choose to continue, you may not have access to some of your old data.
   <button _label="Quit Now" response="GTK_RESPONSE_CANCEL"/>
  </error>
 
+ <error id="ask-quit-with-pending" type="question" default="GTK_RESPONSE_CANCEL">
+  <_primary>Close Evolution with pending background operations?</_primary>
+  <_secondary>Evolution is taking a long time to shut down, possibly due to network
+  connectivity issues. Would you like to cancel all pending operations
+  and close immediately, or keep waiting?</_secondary>
+  <button _label="_Close Immediately" response="GTK_RESPONSE_OK"/>
+  <button _label="Keep _Waiting" response="GTK_RESPONSE_CANCEL"/>
+ </error>
+
 </error-list>