[gtk/matthiasc/for-master] emojichooser: Allow inserting multiple Emoji

[Matthias Clasen <matthiasc src gnome org>]

commit 26c972d4eb45442f0566bf8fb8dc5d3495bc59fb
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Oct 1 23:35:06 2020 -0400

    emojichooser: Allow inserting multiple Emoji
    
    Don't close the Emoji chooser when the Control
    key is held while clicking. So you can insert
    multiple Emoji without having to reopen the
    chooser every time.
    
    Fixes: #1002

 gtk/gtkemojichooser.c | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkemojichooser.c b/gtk/gtkemojichooser.c
index 55c8f328ad..e660e6c5aa 100644
--- a/gtk/gtkemojichooser.c
+++ b/gtk/gtkemojichooser.c
@@ -378,6 +378,22 @@ add_recent_item (GtkEmojiChooser *chooser,
   g_variant_unref (item);
 }
 
+static gboolean
+should_close (GtkEmojiChooser *chooser)
+{
+  GdkDisplay *display;
+  GdkSeat *seat;
+  GdkDevice *device;
+  GdkModifierType state;
+
+  display = gtk_widget_get_display (GTK_WIDGET (chooser));
+  seat = gdk_display_get_default_seat (display);
+  device = gdk_seat_get_keyboard (seat);
+  state = gdk_device_get_modifier_state (device);
+
+  return (state & GDK_CONTROL_MASK) == 0;
+}
+
 static void
 emoji_activated (GtkFlowBox      *box,
                  GtkFlowBoxChild *child,
@@ -389,7 +405,16 @@ emoji_activated (GtkFlowBox      *box,
   GVariant *item;
   gunichar modifier;
 
-  gtk_popover_popdown (GTK_POPOVER (chooser));
+  if (should_close (chooser))
+    gtk_popover_popdown (GTK_POPOVER (chooser));
+  else
+    {
+      GtkWidget *popover;
+
+      popover = gtk_widget_get_ancestor (GTK_WIDGET (box), GTK_TYPE_POPOVER);
+      if (popover != GTK_WIDGET (chooser))
+        gtk_popover_popdown (GTK_POPOVER (popover));
+    }
 
   label = gtk_flow_box_child_get_child (child);
   text = g_strdup (gtk_label_get_label (GTK_LABEL (label)));