[gtranslator] Connect search button with search revealer

[Daniel Garcia Moreno <danigm src gnome org>]

commit b80c95f3588829a10d82cb456997e97269ef1065
Author: Daniel García Moreno <dani danigm net>
Date:   Wed May 11 21:29:08 2022 +0200

    Connect search button with search revealer
    
    Fix https://gitlab.gnome.org/GNOME/gtranslator/-/issues/156

 src/gtr-tab.c    | 22 ++++++++++++++++++++++
 src/gtr-tab.h    |  1 +
 src/gtr-window.c |  9 +++++++++
 3 files changed, 32 insertions(+)
---
diff --git a/src/gtr-tab.c b/src/gtr-tab.c
index e317c464..d0179b6e 100644
--- a/src/gtr-tab.c
+++ b/src/gtr-tab.c
@@ -137,6 +137,7 @@ enum
   MESSAGE_CHANGED,
   MESSAGE_EDITION_FINISHED,
   SELECTION_CHANGED,
+  SEARCHBAR_TOGGLED,
   LAST_SIGNAL
 };
 
@@ -626,6 +627,15 @@ emit_selection_changed (GtkTextBuffer * buf, GParamSpec * spec, GtrTab * tab)
   g_signal_emit (G_OBJECT (tab), signals[SELECTION_CHANGED], 0);
 }
 
+static void
+emit_searchbar_toggled (GtkRevealer *revealer,
+                        GParamSpec  *pspec,
+                        GtrTab      *tab)
+{
+  gboolean revealed = gtk_revealer_get_child_revealed (revealer);
+  g_signal_emit (G_OBJECT (tab), signals[SEARCHBAR_TOGGLED], 0, revealed);
+}
+
 static void
 update_status (GtrTab * tab, GtrMsg * msg, gpointer useless)
 {
@@ -805,6 +815,9 @@ gtr_tab_init (GtrTab * tab)
 
   g_signal_connect (priv->progress_eventbox, "button-press-event",
                     G_CALLBACK (show_hide_revealer), tab);
+
+  g_signal_connect (priv->search_revealer, "notify::child-revealed",
+                    G_CALLBACK (emit_searchbar_toggled), tab);
 }
 
 static void
@@ -961,6 +974,15 @@ gtr_tab_class_init (GtrTabClass * klass)
                   g_cclosure_marshal_VOID__VOID,
                   G_TYPE_NONE, 0);
 
+  signals[SEARCHBAR_TOGGLED] =
+    g_signal_new ("searchbar-toggled",
+                  G_OBJECT_CLASS_TYPE (klass),
+                  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (GtrTabClass, searchbar_toggled),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__BOOLEAN,
+                  G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
+
   /* Properties */
   g_object_class_install_property (object_class,
                                    PROP_NAME,
diff --git a/src/gtr-tab.h b/src/gtr-tab.h
index 3f71c49a..22371636 100644
--- a/src/gtr-tab.h
+++ b/src/gtr-tab.h
@@ -68,6 +68,7 @@ struct _GtrTabClass
   void (*message_changed) (GtrTab * tab, GtrMsg * msg);
   void (*message_edition_finished) (GtrTab * tab, GtrMsg * msg);
   void (*selection_changed) (GtrTab * tab);
+  void (*searchbar_toggled) (GtrTab * tab, gboolean revealed);
 };
 
 typedef enum
diff --git a/src/gtr-window.c b/src/gtr-window.c
index 954955d2..c24a737e 100644
--- a/src/gtr-window.c
+++ b/src/gtr-window.c
@@ -510,6 +510,13 @@ gtr_window_class_init (GtrWindowClass *klass)
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GtrWindow, header_stack);
 }
 
+static void
+searchbar_toggled (GtrTab * tab, gboolean revealed, GtrWindow *window)
+{
+  GtrWindowPrivate *priv = gtr_window_get_instance_private (window);
+  gtr_notebook_enable_find_button (GTR_NOTEBOOK (priv->notebook), revealed);
+}
+
 /***************************** Public funcs ***********************************/
 
 /**
@@ -549,6 +556,8 @@ gtr_window_create_tab (GtrWindow * window, GtrPo * po)
                           G_CALLBACK
                           (update_saved_state),
                           window);
+
+  g_signal_connect (tab, "searchbar-toggled", G_CALLBACK (searchbar_toggled), window);
   return tab;
 }