[balsa/gtk4: 175/276] Various: Stop using gtk_dialog_run()




commit e8d8a26252689d73901727899aae4b3ef67c5105
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Wed Oct 7 10:55:45 2020 -0400

    Various: Stop using gtk_dialog_run()
    
    Put all the sending code in a thread, so that prompting the user for a
    password does not block the main thread.
    
    libbalsa/identity.c
    libbalsa/libbalsa-gpgme-cb.c
    libbalsa/libbalsa-gpgme.c
    src/sendmsg-window.c
    src/sendmsg-window.h

 libbalsa/identity.c          |  84 ++++++++++++++------
 libbalsa/libbalsa-gpgme-cb.c | 181 +++++++++++++++++++++++++++++++++----------
 libbalsa/libbalsa-gpgme.c    |   5 +-
 src/sendmsg-window.c         | 160 ++++++++++++++++++++++++++------------
 src/sendmsg-window.h         |   2 +
 5 files changed, 316 insertions(+), 116 deletions(-)
---
diff --git a/libbalsa/identity.c b/libbalsa/identity.c
index 84dfb2256..9439d79df 100644
--- a/libbalsa/identity.c
+++ b/libbalsa/identity.c
@@ -1053,36 +1053,70 @@ ident_dialog_add_entry(GtkWidget * grid, gint row, GtkDialog * dialog,
         gtk_widget_grab_focus(entry);
 }
 
+typedef struct {
+    GObject *object;
+    const char *target;
+    char *keyid;
+    GError *error;
+} choose_key_info;
 
-static void
-choose_key(GtkButton *button, gpointer user_data)
+static gboolean
+choose_key_thread_idle(gpointer data)
 {
-       const gchar *target;
-       gpgme_protocol_t protocol;
-       gchar *email;
-       gchar *keyid;
-       GError *error = NULL;
-
-       target = g_object_get_data(G_OBJECT(button), "target");
-       if (strcmp(target, "identity-keyid") == 0) {
-               protocol = GPGME_PROTOCOL_OpenPGP;
-       } else {
-               protocol = GPGME_PROTOCOL_CMS;
-       }
-
-       email = ident_dialog_get_text(G_OBJECT(user_data), "identity-address");
-       keyid = libbalsa_gpgme_get_seckey(protocol, email, GTK_WINDOW(user_data), &error);
-       if (keyid != NULL) {
-               display_frame_set_field(G_OBJECT(user_data), target, keyid);
-               g_free(keyid);
-       }
-       if (error != NULL) {
+    choose_key_info *info = data;
+
+    if (info->keyid != NULL) {
+        display_frame_set_field(info->object, info->target, info->keyid);
+        g_free(info->keyid);
+    }
+
+    if (info->error != NULL) {
         libbalsa_information(LIBBALSA_INFORMATION_WARNING,
-                             _("Error selecting key: %s"), error->message);
-        g_clear_error(&error);
-       }
+                             _("Error selecting key: %s"), info->error->message);
+        g_error_free(info->error);
+    }
+
+    g_object_unref(info->object);
+    g_free(info);
+
+    return G_SOURCE_REMOVE;
 }
 
+static gpointer
+choose_key_thread_func(gpointer data)
+{
+    choose_key_info *info = data;
+    gpgme_protocol_t protocol;
+    char *email;
+
+    protocol = (strcmp(info->target, "identity-keyid") == 0) ?
+        GPGME_PROTOCOL_OpenPGP : GPGME_PROTOCOL_CMS;
+    email = ident_dialog_get_text(info->object, "identity-address");
+
+    info->error = NULL;
+    info->keyid = libbalsa_gpgme_get_seckey(protocol, email, GTK_WINDOW(info->object), &info->error);
+    g_idle_add(choose_key_thread_idle, info);
+
+    return NULL;
+}
+
+static void
+choose_key(GtkButton *button, gpointer user_data)
+{
+    GObject *object = user_data;
+    choose_key_info *info;
+    GThread *thread;
+
+    info = g_new(choose_key_info, 1);
+    info->object = g_object_ref(object);
+    info->target = g_object_get_data(G_OBJECT(button), "target");
+
+    /* Ask the user for a key in a subthread, because it blocks while
+     * the user chooses. */
+
+    thread = g_thread_new("choose-key", choose_key_thread_func, info);
+    g_thread_unref(thread);
+}
 
 /*
  * Add a GtkEntry to the given dialog with a label next to it
diff --git a/libbalsa/libbalsa-gpgme-cb.c b/libbalsa/libbalsa-gpgme-cb.c
index d06aef9eb..310d06521 100644
--- a/libbalsa/libbalsa-gpgme-cb.c
+++ b/libbalsa/libbalsa-gpgme-cb.c
@@ -151,16 +151,47 @@ row_activated_cb(GtkTreeView       *tree_view,
 
         gtk_tree_model_get(model, &iter, GPG_KEY_PTR_COLUMN, &key, -1);
         dialog = libbalsa_key_dialog(window, GTK_BUTTONS_CLOSE, key, GPG_SUBKEY_CAP_ALL, NULL, NULL);
-        g_signal_connect(dialog, "response", G_CALLBACK(gtk_window_destroy), NULL);
+        g_signal_connect(dialog, "response", G_CALLBACK(gtk_widget_destroy), NULL);
         gtk_widget_show(dialog);
     }
 }
 
+static struct {
+    GMutex lock;
+    GCond cond;
+    gboolean done;
+} select_key;
 
-gpgme_key_t
-lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
-                   gpgme_protocol_t protocol, GtkWindow * parent)
+static void
+select_key_response(GtkDialog *dialog,
+                    int        response_id,
+                    gpointer   user_data)
+{
+    gpgme_key_t *use_key = user_data;
+
+    if (response_id != GTK_RESPONSE_OK)
+        *use_key = NULL;
+
+    g_mutex_lock(&select_key.lock);
+    select_key.done = TRUE;
+    g_cond_signal(&select_key.cond);
+    g_mutex_unlock(&select_key.lock);
+
+    gtk_widget_destroy(GTK_WIDGET(dialog));
+}
+
+typedef struct {
+    const gchar     *user_name;
+    lb_key_sel_md_t  mode;
+    GList           *keys;
+    GtkWindow       *parent;
+    gpgme_key_t     *use_key;
+} select_key_info;
+
+static gboolean
+select_key_idle(gpointer user_data)
 {
+    select_key_info *info = user_data;
     GtkWidget *dialog;
     GtkWidget *content_area;
     GtkWidget *vbox;
@@ -168,17 +199,17 @@ lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
     GtkWidget *scrolled_window;
     GtkWidget *tree_view;
     GtkListStore *model;
-       GtkTreeSortable *sortable;
+    GtkTreeSortable *sortable;
     GtkTreeSelection *selection;
     GtkTreeIter iter;
     gchar *prompt;
-    gpgme_key_t use_key = NULL;
-       GtkCellRenderer *renderer;
-       GtkTreeViewColumn *column;
+    GtkCellRenderer *renderer;
+    GtkTreeViewColumn *column;
+    GList *l;
 
     /* FIXME: create dialog according to the Gnome HIG */
     dialog = gtk_dialog_new_with_buttons(_("Select key"),
-                                        parent,
+                                        info->parent,
                                         GTK_DIALOG_DESTROY_WITH_PARENT |
                                          libbalsa_dialog_flags(),
                                          _("_OK"),     GTK_RESPONSE_OK,
@@ -186,37 +217,39 @@ lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
                                          NULL);
     gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CANCEL);
     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), GTK_RESPONSE_OK, FALSE);
-       geometry_manager_attach(GTK_WINDOW(dialog), "KeyList");
+    geometry_manager_attach(GTK_WINDOW(dialog), "KeyList");
     content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 #if HAVE_MACOSX_DESKTOP
-    libbalsa_macosx_menu_for_parent(dialog, parent);
+    libbalsa_macosx_menu_for_parent(dialog, info->parent);
 #endif
 
     vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);
     gtk_widget_set_vexpand (vbox, TRUE);
     gtk_container_add(GTK_CONTAINER(content_area), vbox);
     gtk_container_set_border_width(GTK_CONTAINER(vbox), 12);
-    switch (mode) {
+
+    switch (info->mode) {
        case LB_SELECT_PRIVATE_KEY:
                prompt =
                        g_strdup_printf(_("Select the private key for the signer “%s”"),
-                                                       user_name);
+                                                       info->user_name);
                break;
        case LB_SELECT_PUBLIC_KEY_USER:
                prompt =
                        g_strdup_printf(_("Select the public key for the recipient “%s”"),
-                                       user_name);
+                                       info->user_name);
                break;
        case LB_SELECT_PUBLIC_KEY_ANY:
                prompt =
                        g_strdup_printf(_("There seems to be no public key for recipient "
                                  "“%s” in your key ring.\nIf you are sure that the "
                                                          "recipient owns a different key, select it from "
-                                                         "the list."), user_name);
+                                                         "the list."), info->user_name);
                break;
        default:
                g_assert_not_reached();
-       }
+    }
+
     label = libbalsa_create_wrap_label(prompt, FALSE);
     g_free(prompt);
     gtk_container_add(GTK_CONTAINER(vbox), label);
@@ -249,11 +282,11 @@ lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
     g_object_set_data(G_OBJECT(selection), "first", GUINT_TO_POINTER(1));
     gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);
     g_signal_connect(selection, "changed",
-                    G_CALLBACK(key_selection_changed_cb), &use_key);
+                    G_CALLBACK(key_selection_changed_cb), info->use_key);
 
     /* add the keys */
-    while (keys != NULL) {
-       gpgme_key_t key = (gpgme_key_t) keys->data;
+    for (l = info->keys; l != NULL; l = l->next) {
+       gpgme_key_t key = (gpgme_key_t) l->data;
 
        /* simply add the primary uid -- the user can show the full key details */
        if ((key->uids != NULL) && (key->uids->uid != NULL) && (key->subkeys != NULL)) {
@@ -274,7 +307,6 @@ lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
                g_free(bits);
                g_free(created);
        }
-       keys = g_list_next(keys);
     }
 
     g_object_unref(model);
@@ -303,43 +335,112 @@ lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
     gtk_container_add(GTK_CONTAINER(scrolled_window), tree_view);
     g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), dialog);
 
-    gtk_widget_show_all(content_area);
+    g_signal_connect(dialog, "response", G_CALLBACK(select_key_response), info->use_key);
+    g_free(info);
+    gtk_widget_show_all(dialog);
 
-    if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_OK) {
-       use_key = NULL;
-    }
-    gtk_widget_destroy(dialog);
+    return G_SOURCE_REMOVE;
+}
+
+gpgme_key_t
+lb_gpgme_select_key(const gchar * user_name, lb_key_sel_md_t mode, GList * keys,
+                   gpgme_protocol_t protocol, GtkWindow * parent)
+{
+    gpgme_key_t use_key = NULL;
+    select_key_info *info;
+
+    g_return_val_if_fail(libbalsa_am_i_subthread(), NULL);
+
+    info = g_new(select_key_info, 1);
+    info->user_name = user_name;
+    info->mode = mode;
+    info->keys = keys;
+    info->parent = parent;
+    info->use_key = &use_key;
+
+    g_idle_add(select_key_idle, info);
+
+    g_mutex_lock(&select_key.lock);
+    select_key.done = FALSE;
+    while (!select_key.done)
+        g_cond_wait(&select_key.cond, &select_key.lock);
+    g_mutex_unlock(&select_key.lock);
 
     return use_key;
 }
 
+static struct {
+    GMutex lock;
+    GCond cond;
+    int result;
+} accept_low_trust_key;
 
-gboolean
-lb_gpgme_accept_low_trust_key(const gchar *user_name,
-                                                         gpgme_key_t  key,
-                                                         GtkWindow   *parent)
+static void
+accept_low_trust_key_response(GtkDialog *dialog,
+                              int        response_id,
+                              gpointer   user_data)
 {
-    GtkWidget *dialog;
-    gint result;
-    gchar *message2;
+    g_mutex_lock(&accept_low_trust_key.lock);
+    accept_low_trust_key.result = response_id;
+    g_cond_signal(&accept_low_trust_key.cond);
+    g_mutex_unlock(&accept_low_trust_key.lock);
 
-    /* paranoia checks */
-    g_return_val_if_fail((user_name != NULL) && (key != NULL), FALSE);
+    gtk_widget_destroy(GTK_WIDGET(dialog));
+}
+
+typedef struct {
+    gpgme_key_t  key;
+    GtkWindow   *parent;
+} accept_low_trust_key_info;
+
+static gboolean
+accept_low_trust_key_idle(gpointer user_data)
+{
+    accept_low_trust_key_info *info = user_data;
+    GtkWidget *dialog;
+    char *message2;
 
     /* create the dialog */
     message2 = g_strdup_printf(_("The owner trust for this key is “%s” only.\nUse this key anyway?"),
-       libbalsa_gpgme_validity_to_gchar_short(key->owner_trust));
-    dialog = libbalsa_key_dialog(parent, GTK_BUTTONS_YES_NO, key, GPG_SUBKEY_CAP_ENCRYPT, _("Insufficient 
key owner trust"),
+       libbalsa_gpgme_validity_to_gchar_short(info->key->owner_trust));
+    dialog = libbalsa_key_dialog(info->parent, GTK_BUTTONS_YES_NO, info->key, GPG_SUBKEY_CAP_ENCRYPT, 
_("Insufficient key owner trust"),
        message2);
+    g_free(message2);
 #if HAVE_MACOSX_DESKTOP
-    libbalsa_macosx_menu_for_parent(dialog, parent);
+    libbalsa_macosx_menu_for_parent(dialog, info->parent);
 #endif
 
+    g_free(info);
+
     /* ask the user */
-    result = gtk_dialog_run(GTK_DIALOG(dialog));
-    gtk_widget_destroy(dialog);
+    g_signal_connect(dialog, "response", G_CALLBACK(accept_low_trust_key_response), NULL);
+    gtk_widget_show_all(dialog);
+
+    return G_SOURCE_REMOVE;
+}
+
+gboolean
+lb_gpgme_accept_low_trust_key(const gchar *user_name,
+                              gpgme_key_t  key,
+                              GtkWindow   *parent)
+{
+    accept_low_trust_key_info *info;
+
+    /* paranoia checks */
+    g_return_val_if_fail((user_name != NULL) && (key != NULL), FALSE);
+
+    info = g_new(accept_low_trust_key_info, 1);
+    info->key = key;
+    info->parent = parent;
+    g_idle_add(accept_low_trust_key_idle, info);
+
+    g_mutex_lock(&accept_low_trust_key.lock);
+    accept_low_trust_key.result = 0;
+    while (accept_low_trust_key.result == 0)
+        g_cond_wait(&accept_low_trust_key.cond, &accept_low_trust_key.lock);
+    g_mutex_unlock(&accept_low_trust_key.lock);
 
-    return result == GTK_RESPONSE_YES;
+    return accept_low_trust_key.result == GTK_RESPONSE_YES;
 }
 
 
diff --git a/libbalsa/libbalsa-gpgme.c b/libbalsa/libbalsa-gpgme.c
index d12c8fd5e..a51c96ef5 100644
--- a/libbalsa/libbalsa-gpgme.c
+++ b/libbalsa/libbalsa-gpgme.c
@@ -823,8 +823,9 @@ libbalsa_gpgme_get_seckey(gpgme_protocol_t   protocol,
                                        GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE,
                                        _("No private key for protocol %s is available for the signer “%s”"),
                                        libbalsa_gpgme_protocol_name(protocol), name);
-                               (void) gtk_dialog_run(GTK_DIALOG(dialog));
-                               gtk_widget_destroy(dialog);
+
+                               g_signal_connect(dialog, "response", G_CALLBACK(gtk_widget_destroy), NULL);
+                               gtk_widget_show(dialog);
                        }
                }
            gpgme_release(ctx);
diff --git a/src/sendmsg-window.c b/src/sendmsg-window.c
index a5de60f81..5123eff73 100644
--- a/src/sendmsg-window.c
+++ b/src/sendmsg-window.c
@@ -5456,29 +5456,90 @@ check_autocrypt_recommendation(BalsaSendmsg *bsmsg)
 
 
 /* "send message" menu and toolbar callback.
+ *
+ * Sending or queuing a message may require user interaction in the form
+ * of a response to some information. The process is carried out in a
+ * subthread, which can block pending the user's response, to avoid
+ * blocking the main thread.
  */
-static gint
-send_message_handler(BalsaSendmsg * bsmsg, gboolean queue_only)
+
+static struct {
+    GMutex lock;
+    GCond cond;
+    int choice;
+} send_message;
+
+static void
+send_message_thread_response(GtkDialog *dialog,
+                             int        response_id,
+                             gpointer   user_data)
+{
+    g_mutex_lock(&send_message.lock);
+    send_message.choice = response_id;
+    g_cond_signal(&send_message.cond);
+    g_mutex_unlock(&send_message.lock);
+
+    gtk_widget_destroy(GTK_WIDGET(dialog));
+}
+
+typedef struct {
+    GtkWindow *window;
+    gboolean warn_mp;
+    gboolean warn_html_sign;
+} send_message_info;
+
+static gboolean
+send_message_thread_idle(gpointer user_data)
+{
+    send_message_info *info = user_data;
+    GtkWidget *dialog;
+    GString *string =
+        g_string_new(_("You selected OpenPGP security for this message.\n"));
+
+    if (info->warn_html_sign)
+        g_string_append(string,
+                        _("The message text will be sent as plain text and as "
+                          "HTML, but only the plain part can be signed.\n"));
+    if (info->warn_mp)
+        g_string_append(string,
+                        _("The message contains attachments, which cannot be "
+                          "signed or encrypted.\n"));
+    g_string_append(string,
+                    _("You should select MIME mode if the complete "
+                      "message shall be protected. Do you really want to proceed?"));
+    dialog =
+        gtk_message_dialog_new(info->window,
+                               GTK_DIALOG_DESTROY_WITH_PARENT |
+                               GTK_DIALOG_MODAL, GTK_MESSAGE_QUESTION,
+                               GTK_BUTTONS_OK_CANCEL, "%s", string->str);
+#if HAVE_MACOSX_DESKTOP
+    libbalsa_macosx_menu_for_parent(dialog, info->window);
+#endif
+    g_string_free(string, TRUE);
+    g_free(info);
+
+    g_signal_connect(dialog, "response", G_CALLBACK(send_message_thread_response), NULL);
+
+    return G_SOURCE_REMOVE;
+}
+
+static gpointer
+send_message_thread(gpointer data)
 {
+    BalsaSendmsg *bsmsg = data;
     LibBalsaMsgCreateResult result;
     LibBalsaMessage *message;
     LibBalsaMailbox *fcc;
     GtkTreeIter iter;
     GError * error = NULL;
 
-    if (!bsmsg->ready_to_send)
-       return FALSE;
-
-    if(!subject_not_empty(bsmsg))
-       return FALSE;
-
 #ifdef ENABLE_AUTOCRYPT
     if (!check_autocrypt_recommendation(bsmsg)) {
-       return FALSE;
+        return NULL;
     }
 #else
     if (!check_suggest_encryption(bsmsg)) {
-       return FALSE;
+        return NULL;
     }
 #endif /* ENABLE_AUTOCRYPT */
 
@@ -5493,40 +5554,23 @@ send_message_handler(BalsaSendmsg * bsmsg, gboolean queue_only)
             bsmsg->send_mp_alt;
 
         if (warn_mp || warn_html_sign) {
+            send_message_info *info;
             /* we are going to RFC2440 sign/encrypt a multipart, or to
              * RFC2440 sign a multipart/alternative... */
-            GtkWidget *dialog;
-            gint choice;
-            GString * string =
-                g_string_new(_("You selected OpenPGP security for this message.\n"));
-
-            if (warn_html_sign)
-                string =
-                    g_string_append(string,
-                        _("The message text will be sent as plain text and as "
-                          "HTML, but only the plain part can be signed.\n"));
-            if (warn_mp)
-                string =
-                    g_string_append(string,
-                        _("The message contains attachments, which cannot be "
-                          "signed or encrypted.\n"));
-            string =
-                g_string_append(string,
-                    _("You should select MIME mode if the complete "
-                      "message shall be protected. Do you really want to proceed?"));
-            dialog = gtk_message_dialog_new
-                (GTK_WINDOW(bsmsg->window),
-                 GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL,
-                 GTK_MESSAGE_QUESTION,
-                 GTK_BUTTONS_OK_CANCEL, "%s", string->str);
-#if HAVE_MACOSX_DESKTOP
-           libbalsa_macosx_menu_for_parent(dialog, GTK_WINDOW(bsmsg->window));
-#endif
-            g_string_free(string, TRUE);
-            choice = gtk_dialog_run(GTK_DIALOG(dialog));
-            gtk_widget_destroy(dialog);
-            if (choice != GTK_RESPONSE_OK)
-                return FALSE;
+            info = g_new(send_message_info, 1);
+            info->window = GTK_WINDOW(bsmsg->window);
+            info->warn_mp = warn_mp;
+            info->warn_html_sign = warn_html_sign;
+            g_idle_add(send_message_thread_idle, info);
+
+            g_mutex_lock(&send_message.lock);
+            send_message.choice = 0;
+            while (send_message.choice == 0)
+                g_cond_wait(&send_message.cond, &send_message.lock);
+            g_mutex_unlock(&send_message.lock);
+
+            if (send_message.choice != GTK_RESPONSE_OK)
+                return NULL;
         }
     }
 
@@ -5538,7 +5582,7 @@ send_message_handler(BalsaSendmsg * bsmsg, gboolean queue_only)
                                _("sending message with GPG mode %d"),
                                libbalsa_message_get_gpg_mode(message));
 
-    if(queue_only)
+    if(bsmsg->queue_only)
        result = libbalsa_message_queue(message, balsa_app.outbox, fcc,
                                        libbalsa_identity_get_smtp_server(bsmsg->ident),
                                        bsmsg->flow, &error);
@@ -5546,7 +5590,7 @@ send_message_handler(BalsaSendmsg * bsmsg, gboolean queue_only)
         result = libbalsa_message_send(message, balsa_app.outbox, fcc,
                                        balsa_find_sentbox_by_url,
                                       libbalsa_identity_get_smtp_server(bsmsg->ident),
-                                                                          balsa_app.send_progress_dialog,
+                                       balsa_app.send_progress_dialog,
                                        GTK_WINDOW(balsa_app.main_window),
                                        bsmsg->flow, &error);
     if (result == LIBBALSA_MESSAGE_CREATE_OK) {
@@ -5588,12 +5632,27 @@ send_message_handler(BalsaSendmsg * bsmsg, gboolean queue_only)
                                       LIBBALSA_INFORMATION_ERROR,
                                       _("Send failed: %s"), msg);
         }
-       return FALSE;
+       return NULL;
     }
 
     gtk_widget_destroy(bsmsg->window);
 
-    return TRUE;
+    return NULL;
+}
+
+static void
+send_message_handler(BalsaSendmsg * bsmsg)
+{
+    GThread *thread;
+
+    if (!bsmsg->ready_to_send)
+       return;
+
+    if(!subject_not_empty(bsmsg))
+       return;
+
+    thread = g_thread_new("send-message", send_message_thread, bsmsg);
+    g_thread_unref(thread);
 }
 
 
@@ -5603,7 +5662,8 @@ sw_toolbar_send_activated(GSimpleAction * action, GVariant * parameter, gpointer
 {
     BalsaSendmsg *bsmsg = data;
 
-    send_message_handler(bsmsg, balsa_app.always_queue_sent_mail);
+    bsmsg->queue_only = balsa_app.always_queue_sent_mail;
+    send_message_handler(bsmsg);
 }
 
 static void
@@ -5611,7 +5671,8 @@ sw_send_activated(GSimpleAction * action, GVariant * parameter, gpointer data)
 {
     BalsaSendmsg *bsmsg = data;
 
-    send_message_handler(bsmsg, FALSE);
+    bsmsg->queue_only = FALSE;
+    send_message_handler(bsmsg);
 }
 
 
@@ -5620,7 +5681,8 @@ sw_queue_activated(GSimpleAction * action, GVariant * parameter, gpointer data)
 {
     BalsaSendmsg *bsmsg = data;
 
-    send_message_handler(bsmsg, TRUE);
+    bsmsg->queue_only = TRUE;
+    send_message_handler(bsmsg);
 }
 
 static gboolean
diff --git a/src/sendmsg-window.h b/src/sendmsg-window.h
index 28ac8fad9..9092ce5ee 100644
--- a/src/sendmsg-window.h
+++ b/src/sendmsg-window.h
@@ -103,7 +103,9 @@ G_BEGIN_DECLS
         GtkTextMark *insert_mark;
 
         GtkWidget *paned;
+
         gboolean ready_to_send;
+        gboolean queue_only;    /* Set when about to send */
     };
 
     BalsaSendmsg *sendmsg_window_compose(void);


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