[gtk+] inspector: Require toggling on/off of recording

[Benjamin Otte <otte src gnome org>]

commit 3741e6906e2954284ae349571fa0971d06db46fc
Author: Benjamin Otte <otte redhat com>
Date:   Tue Nov 1 18:03:16 2016 +0100

    inspector: Require toggling on/off of recording
    
    This way, we don't eat up all your memory every time you start the
    inspector.

 gtk/inspector/recorder.c  |   90 +++++++++++++++++++++++++++++++++++++++++++++
 gtk/inspector/recorder.h  |   16 +++++---
 gtk/inspector/recorder.ui |   12 ++++++
 3 files changed, 112 insertions(+), 6 deletions(-)
---
diff --git a/gtk/inspector/recorder.c b/gtk/inspector/recorder.c
index 5c189fe..126118f 100644
--- a/gtk/inspector/recorder.c
+++ b/gtk/inspector/recorder.c
@@ -38,6 +38,8 @@ struct _GtkInspectorRecorderPrivate
   GtkWidget *recordings_list;
   GtkWidget *render_node_view;
   GtkWidget *render_node_tree;
+
+  guint recording : 1;
 };
 
 enum {
@@ -47,6 +49,15 @@ enum {
   N_NODE_COLUMNS
 };
 
+enum
+{
+  PROP_0,
+  PROP_RECORDING,
+  LAST_PROP
+};
+
+static GParamSpec *props[LAST_PROP] = { NULL, };
+
 G_DEFINE_TYPE_WITH_PRIVATE (GtkInspectorRecorder, gtk_inspector_recorder, GTK_TYPE_BIN)
 
 static void 
@@ -133,9 +144,63 @@ gtk_inspector_recorder_recordings_list_create_widget (gpointer item,
 }
 
 static void
+gtk_inspector_recorder_get_property (GObject    *object,
+                                     guint       param_id,
+                                     GValue     *value,
+                                     GParamSpec *pspec)
+{
+  GtkInspectorRecorder *recorder = GTK_INSPECTOR_RECORDER (object);
+  GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
+
+  switch (param_id)
+    {
+    case PROP_RECORDING:
+      g_value_set_boolean (value, priv->recording);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_inspector_recorder_set_property (GObject      *object,
+                                     guint         param_id,
+                                     const GValue *value,
+                                     GParamSpec   *pspec)
+{
+  GtkInspectorRecorder *recorder = GTK_INSPECTOR_RECORDER (object);
+
+  switch (param_id)
+    {
+    case PROP_RECORDING:
+      gtk_inspector_recorder_set_recording (recorder, g_value_get_boolean (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
 gtk_inspector_recorder_class_init (GtkInspectorRecorderClass *klass)
 {
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = gtk_inspector_recorder_get_property;
+  object_class->set_property = gtk_inspector_recorder_set_property;
+
+  props[PROP_RECORDING] =
+    g_param_spec_boolean ("recording",
+                          "Recording",
+                          "Whether the recorder is currently recording",
+                          FALSE,
+                          G_PARAM_READWRITE);
+
+  g_object_class_install_properties (object_class, LAST_PROP, props);
 
   gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/inspector/recorder.ui");
 
@@ -171,6 +236,28 @@ gtk_inspector_recorder_init (GtkInspectorRecorder *recorder)
 }
 
 void
+gtk_inspector_recorder_set_recording (GtkInspectorRecorder *recorder,
+                                      gboolean              recording)
+{
+  GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
+
+  if (priv->recording == recording)
+    return;
+
+  priv->recording = recording;
+
+  g_object_notify_by_pspec (G_OBJECT (recorder), props[PROP_RECORDING]);
+}
+
+gboolean
+gtk_inspector_recorder_is_recording (GtkInspectorRecorder *recorder)
+{
+  GtkInspectorRecorderPrivate *priv = gtk_inspector_recorder_get_instance_private (recorder);
+
+  return priv->recording;
+}
+
+void
 gtk_inspector_recorder_record_render (GtkInspectorRecorder *recorder,
                                       GtkWidget            *widget,
                                       GdkWindow            *window,
@@ -181,6 +268,9 @@ gtk_inspector_recorder_record_render (GtkInspectorRecorder *recorder,
   GtkInspectorRecording *recording;
   GdkFrameClock *frame_clock;
 
+  if (!gtk_inspector_recorder_is_recording (recorder))
+    return;
+
   frame_clock = gtk_widget_get_frame_clock (widget);
 
   recording = gtk_inspector_render_recording_new (gdk_frame_clock_get_frame_time (frame_clock),
diff --git a/gtk/inspector/recorder.h b/gtk/inspector/recorder.h
index 7f0980b..557bb8c 100644
--- a/gtk/inspector/recorder.h
+++ b/gtk/inspector/recorder.h
@@ -42,13 +42,17 @@ typedef struct _GtkInspectorRecorderClass
 
 G_BEGIN_DECLS
 
-GType      gtk_inspector_recorder_get_type              (void);
+GType           gtk_inspector_recorder_get_type                 (void);
 
-void       gtk_inspector_recorder_record_render         (GtkInspectorRecorder   *recorder,
-                                                         GtkWidget              *widget,
-                                                         GdkWindow              *window,
-                                                         const cairo_region_t   *region,
-                                                         GskRenderNode          *node);
+void            gtk_inspector_recorder_set_recording            (GtkInspectorRecorder   *recorder,
+                                                                 gboolean                record);
+gboolean        gtk_inspector_recorder_is_recording             (GtkInspectorRecorder   *recorder);
+
+void            gtk_inspector_recorder_record_render            (GtkInspectorRecorder   *recorder,
+                                                                 GtkWidget              *widget,
+                                                                 GdkWindow              *window,
+                                                                 const cairo_region_t   *region,
+                                                                 GskRenderNode          *node);
 
 G_END_DECLS
 
diff --git a/gtk/inspector/recorder.ui b/gtk/inspector/recorder.ui
index 9ab46a4..4317d04 100644
--- a/gtk/inspector/recorder.ui
+++ b/gtk/inspector/recorder.ui
@@ -8,6 +8,18 @@
         <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
+          <object class="GtkBox">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkToggleButton">
+                <property name="visible">True</property>
+                <property name="icon-name">media-record</property>
+                <property name="active" bind-source="GtkInspectorRecorder" bind-property="recording" 
bind-flags="bidirectional|sync-create"/>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
           <object class="GtkPaned">
             <property name="visible">True</property>
             <property name="orientation">horizontal</property>