[balsa/gtk4: 181/294] libbalsa-progress: Build with gtk4

[Peter Bloomfield <peterb src gnome org>]

commit acda6e4f728ea59cd41e4a13a163dc95cad2cea8
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Thu Oct 8 22:47:04 2020 -0400

    libbalsa-progress: Build with gtk4

 libbalsa/libbalsa-progress.c | 124 ++++++++++++++++++-------------------------
 1 file changed, 52 insertions(+), 72 deletions(-)
---
diff --git a/libbalsa/libbalsa-progress.c b/libbalsa/libbalsa-progress.c
index 3236fcc82..80d40df41 100644
--- a/libbalsa/libbalsa-progress.c
+++ b/libbalsa/libbalsa-progress.c
@@ -63,14 +63,12 @@ static void libbalsa_progress_dialog_ensure_real(ProgressDialog *progress_dialog
                                                                                                 const gchar  
  *progress_id);
 static gboolean libbalsa_progress_dialog_create_cb(create_progress_dlg_t *dlg_data);
 
-static void progress_dialog_response_cb(GtkWidget *dialog,
-                                           gint       response);
+static void progress_dialog_response_cb(GtkWindow *dialog,
+                                        int        response);
 static void progress_dialog_destroy_cb(GtkWidget G_GNUC_UNUSED *widget,
                                                                           ProgressDialog          
*progress_dialog);
-static progress_widget_data_t *find_progress_data_by_name(GtkContainer *container,
-                                                                                                             
    const gchar  *id);
-static GtkWidget *create_progress_widget(const gchar *progress_id)
-       G_GNUC_WARN_UNUSED_RESULT;
+static progress_widget_data_t *find_progress_data_by_name(GtkWidget *widget, const gchar  *id);
+static GtkWidget * create_progress_widget(const char *progress_id) G_GNUC_WARN_UNUSED_RESULT;
 static gboolean remove_progress_widget(progress_widget_data_t *progress_data);
 static void libbalsa_progress_dialog_update_real(ProgressDialog *progress_dialog,
                                                                                                 const gchar  
  *progress_id,
@@ -101,7 +99,7 @@ libbalsa_progress_dialog_ensure(ProgressDialog *progress_dialog,
                dlgdata.id = progress_id;
                dlgdata.done = FALSE;
                g_cond_init(&dlgdata.cond);
-               gdk_threads_add_idle((GSourceFunc) libbalsa_progress_dialog_create_cb, &dlgdata);
+               g_idle_add((GSourceFunc) libbalsa_progress_dialog_create_cb, &dlgdata);
 
                while (!dlgdata.done) {
                        g_cond_wait(&dlgdata.cond, &progress_dialog->mutex);
@@ -150,7 +148,7 @@ libbalsa_progress_dialog_update(ProgressDialog *progress_dialog,
                        update_data->finished = finished;
                        update_data->fraction = fraction;
                        update_data->message = real_msg;
-                       gdk_threads_add_idle((GSourceFunc) libbalsa_progress_dialog_update_cb, update_data);
+                       g_idle_add((GSourceFunc) libbalsa_progress_dialog_update_cb, update_data);
                } else {
                        libbalsa_progress_dialog_update_real(progress_dialog, progress_id, finished, 
fraction, real_msg);
                        g_free(real_msg);
@@ -166,24 +164,16 @@ libbalsa_progress_dialog_update(ProgressDialog *progress_dialog,
 /* note: the mutex ProgressDialog::mutex is always locked when this function is called */
 static void
 libbalsa_progress_dialog_ensure_real(ProgressDialog *progress_dialog,
-                                                                    const gchar    *dialog_title,
-                                                                    GtkWindow      *parent,
-                                                                    const gchar    *progress_id)
+                                     const char     *dialog_title,
+                                     GtkWindow      *parent,
+                                     const char     *progress_id)
 {
        GtkWidget *content_box;
        const progress_widget_data_t *progress_data;
 
     if (progress_dialog->dialog == NULL) {
-       GdkGeometry hints;
-
        progress_dialog->dialog = gtk_dialog_new_with_buttons(dialog_title, parent,
                GTK_DIALOG_DESTROY_WITH_PARENT | libbalsa_dialog_flags(), _("_Hide"), GTK_RESPONSE_CLOSE, 
NULL);
-       gtk_window_set_role(GTK_WINDOW(progress_dialog->dialog), "progress_dialog");
-        hints.min_width = PROGRESS_DIALOG_WIDTH;
-        hints.min_height = 1;
-        hints.max_width = PROGRESS_DIALOG_WIDTH;
-        hints.max_height = -1;
-        gtk_window_set_geometry_hints(GTK_WINDOW(progress_dialog->dialog), NULL, &hints, GDK_HINT_MIN_SIZE + 
GDK_HINT_MAX_SIZE);
         gtk_window_set_resizable(GTK_WINDOW(progress_dialog->dialog), FALSE);
         g_signal_connect(progress_dialog->dialog, "response", G_CALLBACK(progress_dialog_response_cb), NULL);
         g_signal_connect(progress_dialog->dialog, "destroy", G_CALLBACK(progress_dialog_destroy_cb), 
progress_dialog);
@@ -191,12 +181,12 @@ libbalsa_progress_dialog_ensure_real(ProgressDialog *progress_dialog,
        content_box = gtk_dialog_get_content_area(GTK_DIALOG(progress_dialog->dialog));
        gtk_box_set_spacing(GTK_BOX(content_box), 6);
 
-        gtk_widget_show_all(progress_dialog->dialog);
+        gtk_widget_show(progress_dialog->dialog);
     } else {
        content_box = gtk_dialog_get_content_area(GTK_DIALOG(progress_dialog->dialog));
     }
 
-    progress_data = find_progress_data_by_name(GTK_CONTAINER(content_box), progress_id);
+    progress_data = find_progress_data_by_name(content_box, progress_id);
     if (progress_data != NULL) {
        if (!gtk_revealer_get_child_revealed(GTK_REVEALER(progress_data->revealer))) {
                gtk_revealer_set_reveal_child(GTK_REVEALER(progress_data->revealer), TRUE);
@@ -206,8 +196,8 @@ libbalsa_progress_dialog_ensure_real(ProgressDialog *progress_dialog,
 
        progress_widget = create_progress_widget(progress_id);
        gtk_revealer_set_reveal_child(GTK_REVEALER(progress_widget), TRUE);
-       gtk_container_add(GTK_CONTAINER(content_box), progress_widget);
-       gtk_widget_show_all(progress_widget);
+       gtk_box_append(GTK_BOX(content_box), progress_widget);
+       gtk_widget_show(progress_widget);
     }
 }
 
@@ -227,12 +217,11 @@ libbalsa_progress_dialog_create_cb(create_progress_dlg_t *dlg_data)
 
 
 static void
-progress_dialog_response_cb(GtkWidget *dialog,
-                            gint       response)
+progress_dialog_response_cb(GtkWindow *dialog,
+                            int        response)
 {
-    if (response == GTK_RESPONSE_CLOSE) {
-        gtk_widget_destroy(dialog);
-    }
+    if (response == GTK_RESPONSE_CLOSE)
+        gtk_window_destroy(dialog);
 }
 
 
@@ -262,31 +251,27 @@ progress_data_destroy_cb(GtkWidget G_GNUC_UNUSED *widget,
 
 
 static progress_widget_data_t *
-find_progress_data_by_name(GtkContainer *container,
-                                                  const gchar  *id)
+find_progress_data_by_name(GtkWidget  *widget,
+                           const char *id)
 {
-       GList *children;
-       GList *this_child;
-       progress_widget_data_t *data;
-
-       children = gtk_container_get_children(container);
-       data = NULL;
-       this_child = children;
-       while ((data == NULL) && (this_child != NULL)) {
-               if (strcmp(gtk_widget_get_name(GTK_WIDGET(this_child->data)), id) == 0) {
-                       data = g_object_get_data(G_OBJECT(this_child->data), "data");
-               } else {
-                       this_child = this_child->next;
-               }
-       }
-       g_list_free(children);
+    GtkWidget *child;
+    progress_widget_data_t *data = NULL;
+
+    for (child = gtk_widget_get_first_child(widget);
+         child != NULL;
+         child = gtk_widget_get_next_sibling(child)) {
+        if (strcmp(gtk_widget_get_name(child), id) == 0) {
+            data = g_object_get_data(G_OBJECT(child), "data");
+            break;
+        }
+    }
 
-       return data;
+    return data;
 }
 
 
 static GtkWidget *
-create_progress_widget(const gchar *progress_id)
+create_progress_widget(const char *progress_id)
 {
        GtkWidget *box;
        GtkWidget *label;
@@ -302,53 +287,48 @@ create_progress_widget(const gchar *progress_id)
     g_signal_connect(widget_data->revealer, "destroy", G_CALLBACK(progress_data_destroy_cb), widget_data);
 
        box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 2);
-       gtk_container_add(GTK_CONTAINER(widget_data->revealer), box);
+       gtk_revealer_set_child(GTK_REVEALER(widget_data->revealer), box);
 
        label = gtk_label_new(progress_id);
-       gtk_container_add(GTK_CONTAINER(box), label);
+       gtk_box_append(GTK_BOX(box), label);
 
        widget_data->label = gtk_label_new(" ");
-       gtk_label_set_line_wrap(GTK_LABEL(widget_data->label), TRUE);
-       gtk_container_add(GTK_CONTAINER(box), widget_data->label);
+       gtk_label_set_wrap(GTK_LABEL(widget_data->label), TRUE);
+       gtk_box_append(GTK_BOX(box), widget_data->label);
 
        widget_data->progress = gtk_progress_bar_new();
-       gtk_container_add(GTK_CONTAINER(box), widget_data->progress);
+       gtk_box_append(GTK_BOX(box), widget_data->progress);
 
        return widget_data->revealer;
 }
 
 
-static void
-count_revealers(GtkWidget *widget,
-                gpointer   data)
-{
-       guint *count = (guint *) data;
-
-       if (GTK_IS_REVEALER(widget)) {
-               *count += 1U;
-       }
-}
-
-
 static gboolean
 remove_progress_widget(progress_widget_data_t *progress_data)
 {
        GtkWidget *parent_dialog;
        GtkWidget *content_box;
        guint rev_children = 0U;
+        GtkWidget *child;
 
        progress_data->fadeout_id = 0U;
-       parent_dialog = gtk_widget_get_toplevel(progress_data->revealer);
-       gtk_widget_destroy(progress_data->revealer);
+       parent_dialog = GTK_WIDGET(gtk_widget_get_root(progress_data->revealer));
+       gtk_widget_unparent(progress_data->revealer);
 
        /* count the GtkRevealer children left, so we can just destroy the dialogue if there is none */
        content_box = gtk_dialog_get_content_area(GTK_DIALOG(parent_dialog));
-       gtk_container_foreach(GTK_CONTAINER(content_box), count_revealers, &rev_children);
-       if (rev_children == 0U) {
-               gtk_widget_destroy(parent_dialog);
-       } else {
+        for (child = gtk_widget_get_first_child(content_box);
+             child != NULL;
+             child = gtk_widget_get_next_sibling(child)) {
+            if (GTK_IS_REVEALER(child))
+               ++rev_children;
+        }
+
+       if (rev_children == 0U)
+               gtk_window_destroy(GTK_WINDOW(parent_dialog));
+       else
                gtk_window_resize(GTK_WINDOW(parent_dialog), PROGRESS_DIALOG_WIDTH, 1);
-       }
+
        return FALSE;
 }
 
@@ -384,7 +364,7 @@ libbalsa_progress_dialog_update_real(ProgressDialog *progress_dialog,
                progress_widget_data_t *progress_data;
 
                content_box = gtk_dialog_get_content_area(GTK_DIALOG(progress_dialog->dialog));
-               progress_data = find_progress_data_by_name(GTK_CONTAINER(content_box), progress_id);
+               progress_data = find_progress_data_by_name(content_box, progress_id);
                if (progress_data != NULL) {
                        if (message != NULL) {
                                gtk_label_set_text(GTK_LABEL(progress_data->label), message);