[evolution/webkit-composer: 163/181] EEditor: Add a read-only "busy" property.

[Matthew Barnes <mbarnes src gnome org>]

commit c49fc01d42d6378e96fd01d1ae26867b20515105
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Feb 7 16:20:34 2013 -0500

    EEditor: Add a read-only "busy" property.
    
    This is only TRUE while an activity is in progress.
    
    Useful for temporarily disabling parts of the user interface.

 doc/reference/libeutil/libeutil-sections.txt |    1 +
 e-util/e-editor-private.h                    |    2 +
 e-util/e-editor.c                            |   55 ++++++++++++++++++++++++++
 e-util/e-editor.h                            |    1 +
 4 files changed, 59 insertions(+), 0 deletions(-)
---
diff --git a/doc/reference/libeutil/libeutil-sections.txt b/doc/reference/libeutil/libeutil-sections.txt
index 2c4138c..4ee700d 100644
--- a/doc/reference/libeutil/libeutil-sections.txt
+++ b/doc/reference/libeutil/libeutil-sections.txt
@@ -1472,6 +1472,7 @@ e_dialog_combo_box_get
 <TITLE>EEditor</TITLE>
 EEditor
 e_editor_new
+e_editor_is_busy
 e_editor_get_editor_widget
 e_editor_get_builder
 e_editor_get_ui_manager
diff --git a/e-util/e-editor-private.h b/e-util/e-editor-private.h
index 0ac4334..575c347 100644
--- a/e-util/e-editor-private.h
+++ b/e-util/e-editor-private.h
@@ -94,6 +94,8 @@ struct _EEditorPrivate {
 	WebKitDOMNode *table_cell;
 
 	gint editor_layout_row;
+
+	gboolean busy;
 };
 
 void		editor_actions_init		(EEditor *editor);
diff --git a/e-util/e-editor.c b/e-util/e-editor.c
index b0f0594..a19b794 100644
--- a/e-util/e-editor.c
+++ b/e-util/e-editor.c
@@ -65,6 +65,7 @@
 
 enum {
 	PROP_0,
+	PROP_BUSY,
 	PROP_FILENAME
 };
 
@@ -549,6 +550,23 @@ editor_parent_changed (GtkWidget *widget,
 }
 
 static void
+editor_notify_activity_cb (EActivityBar *activity_bar,
+                           GParamSpec *pspec,
+                           EEditor *editor)
+{
+	gboolean busy;
+
+	busy = (e_activity_bar_get_activity (activity_bar) != NULL);
+
+	if (busy == editor->priv->busy)
+		return;
+
+	editor->priv->busy = busy;
+
+	g_object_notify (G_OBJECT (editor), "busy");
+}
+
+static void
 editor_set_property (GObject *object,
                      guint property_id,
                      const GValue *value,
@@ -573,6 +591,12 @@ editor_get_property (GObject *object,
                      GParamSpec *pspec)
 {
 	switch (property_id) {
+		case PROP_BUSY:
+			g_value_set_boolean (
+				value, e_editor_is_busy (
+				E_EDITOR (object)));
+			return;
+
 		case PROP_FILENAME:
 			g_value_set_string (
 				value, e_editor_get_filename (
@@ -618,6 +642,10 @@ editor_constructed (GObject *object)
 	priv->activity_bar = g_object_ref (widget);
 	/* EActivityBar controls its own visibility. */
 
+	g_signal_connect (
+		widget, "notify::activity",
+		G_CALLBACK (editor_notify_activity_cb), editor);
+
 	/* Construct the alert bar for errors. */
 
 	widget = e_alert_bar_new ();
@@ -807,6 +835,17 @@ e_editor_class_init (EEditorClass *class)
 
 	g_object_class_install_property (
 		object_class,
+		PROP_BUSY,
+		g_param_spec_boolean (
+			"busy",
+			"Busy",
+			"Whether an activity is in progress",
+			FALSE,
+			G_PARAM_READABLE |
+			G_PARAM_STATIC_STRINGS));
+
+	g_object_class_install_property (
+		object_class,
 		PROP_FILENAME,
 		g_param_spec_string (
 			"filename",
@@ -896,6 +935,22 @@ e_editor_new (void)
 }
 
 /**
+ * e_editor_is_busy:
+ * @editor: an #EEditor
+ *
+ * Returns %TRUE only while an #EActivity is in progress.
+ *
+ * Returns: whether @editor is busy
+ **/
+gboolean
+e_editor_is_busy (EEditor *editor)
+{
+	g_return_val_if_fail (E_IS_EDITOR (editor), FALSE);
+
+	return editor->priv->busy;
+}
+
+/**
  * e_editor_get_editor_widget:
  * @editor: an #EEditor
  *
diff --git a/e-util/e-editor.h b/e-util/e-editor.h
index 9a01d1b..77c635f 100644
--- a/e-util/e-editor.h
+++ b/e-util/e-editor.h
@@ -69,6 +69,7 @@ struct _EEditorClass {
 
 GType		e_editor_get_type		(void) G_GNUC_CONST;
 GtkWidget *	e_editor_new			(void);
+gboolean	e_editor_is_busy		(EEditor *editor);
 EEditorWidget *	e_editor_get_editor_widget	(EEditor *editor);
 GtkBuilder *	e_editor_get_builder		(EEditor *editor);
 GtkUIManager *	e_editor_get_ui_manager		(EEditor *editor);