[evolution-data-server/gnome-42] ERemindersWidget: Allow width shrink for small screens

[Milan Crha <mcrha src gnome org>]

commit a25fa803b2e93943eec07605f63a39b6c053d718
Author: Milan Crha <mcrha redhat com>
Date:   Tue Apr 26 12:50:50 2022 +0200

    ERemindersWidget: Allow width shrink for small screens
    
    The GtkFlowBox re-flows the widgets for small screens/width, to be able
    to use the window in such circumstances too.

 src/libedataserverui/e-reminders-widget.c | 51 +++++++++++++++++++++----------
 1 file changed, 35 insertions(+), 16 deletions(-)
---
diff --git a/src/libedataserverui/e-reminders-widget.c b/src/libedataserverui/e-reminders-widget.c
index 52634678c..d18474dac 100644
--- a/src/libedataserverui/e-reminders-widget.c
+++ b/src/libedataserverui/e-reminders-widget.c
@@ -1547,7 +1547,9 @@ reminders_widget_constructed (GObject *object)
        GtkTreeViewColumn *column;
        GtkCellRenderer *renderer;
        GtkWidget *widget;
-       GtkBox *box;
+       GtkCssProvider *css_provider;
+       GtkFlowBox *flow_box;
+       GError *error = NULL;
 
        /* Chain up to parent's method. */
        G_OBJECT_CLASS (e_reminders_widget_parent_class)->constructed (object);
@@ -1652,27 +1654,44 @@ reminders_widget_constructed (GObject *object)
        reminders_widget_fill_snooze_combo (reminders,
                g_settings_get_int (reminders->priv->settings, "notify-last-snooze-minutes"));
 
-       box = GTK_BOX (gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL));
-       g_object_set (G_OBJECT (box),
-               "halign", GTK_ALIGN_END,
-               "hexpand", TRUE,
-               "valign", GTK_ALIGN_CENTER,
-               "vexpand", FALSE,
-               "margin-top", 4,
+       flow_box = GTK_FLOW_BOX (gtk_flow_box_new ());
+       g_object_set (G_OBJECT (flow_box),
+               "homogeneous", FALSE,
+               "selection-mode", GTK_SELECTION_NONE,
+               "column-spacing", 1,
+               "row-spacing", 1,
                NULL);
 
        widget = gtk_label_new ("");
+       gtk_widget_set_margin_start (widget, 8);
+
+       gtk_flow_box_insert (flow_box, reminders->priv->snooze_combo, -1);
+       gtk_flow_box_insert (flow_box, reminders->priv->snooze_button, -1);
+       gtk_flow_box_insert (flow_box, widget, -1);
+       gtk_flow_box_insert (flow_box, reminders->priv->dismiss_button, -1);
+       gtk_flow_box_insert (flow_box, reminders->priv->dismiss_all_button, -1);
+
+       gtk_grid_attach (GTK_GRID (reminders), GTK_WIDGET (flow_box), 0, 1, 1, 1);
+
+       css_provider = gtk_css_provider_new ();
 
-       gtk_box_pack_start (box, reminders->priv->snooze_combo, FALSE, FALSE, 0);
-       gtk_box_pack_start (box, reminders->priv->snooze_button, FALSE, FALSE, 0);
-       gtk_box_pack_start (box, widget, FALSE, FALSE, 0);
-       gtk_box_pack_start (box, reminders->priv->dismiss_button, FALSE, FALSE, 0);
-       gtk_box_pack_start (box, reminders->priv->dismiss_all_button, FALSE, FALSE, 0);
+       if (gtk_css_provider_load_from_data (css_provider, "flowboxchild { padding: 0px; }", -1, &error)) {
+               GtkFlowBoxChild *child;
+               guint ii = 0;
 
-       gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (box), reminders->priv->snooze_combo, TRUE);
-       gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (box), widget, TRUE);
+               while (child = gtk_flow_box_get_child_at_index (flow_box, ii), child) {
+                       gtk_style_context_add_provider (
+                               gtk_widget_get_style_context (GTK_WIDGET (child)),
+                                       GTK_STYLE_PROVIDER (css_provider),
+                                       GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+                       ii++;
+               }
+       } else {
+               g_warning ("%s: Failed to parse CSS: %s", G_STRFUNC, error ? error->message : "Unknown 
error");
+       }
 
-       gtk_grid_attach (GTK_GRID (reminders), GTK_WIDGET (box), 0, 1, 1, 1);
+       g_clear_object (&css_provider);
+       g_clear_error (&error);
 
        gtk_widget_show_all (GTK_WIDGET (reminders));