[evolution/webkit-composer: 14/147] Change Copy/Cut/Paste sensitivity according to selection

[Matthew Barnes <mbarnes src gnome org>]

commit f96e77e46bc40905947a02ffcc1f6b4c24994b4d
Author: Dan VrÃtil <dvratil redhat com>
Date:   Mon Jul 30 19:35:44 2012 +0200

    Change Copy/Cut/Paste sensitivity according to selection
    
    Automatically control sensitivity of the Copy, Cut and Paste actions
    depending on focus and selection in the EEditorWidget.

 e-util/e-editor-actions.c |   14 +++++++-
 e-util/e-editor-actions.h |    2 +
 e-util/e-editor-widget.c  |   79 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 94 insertions(+), 1 deletions(-)
---
diff --git a/e-util/e-editor-actions.c b/e-util/e-editor-actions.c
index 5aef1a9..a492953 100644
--- a/e-util/e-editor-actions.c
+++ b/e-util/e-editor-actions.c
@@ -2445,5 +2445,17 @@ editor_actions_init (EEditor *editor)
 		editor_widget, "can-undo",
 		ACTION (UNDO), "sensitive",
 		G_BINDING_SYNC_CREATE);
+	g_object_bind_property (
+		editor_widget, "can-copy",
+		ACTION (COPY), "sensitive",
+		G_BINDING_SYNC_CREATE);
+	g_object_bind_property (
+		editor_widget, "can-cut",
+		ACTION (CUT), "sensitive",
+		G_BINDING_SYNC_CREATE);
+	g_object_bind_property (
+		editor_widget, "can-paste",
+		ACTION (PASTE), "sensitive",
+		G_BINDING_SYNC_CREATE);
+
 }
- 
diff --git a/e-util/e-editor-actions.h b/e-util/e-editor-actions.h
index 52b8199..488451b 100644
--- a/e-util/e-editor-actions.h
+++ b/e-util/e-editor-actions.h
@@ -112,6 +112,8 @@
 	E_EDITOR_ACTION ((editor), "mode-plain")
 #define E_EDITOR_ACTION_MONOSPACED(editor) \
 	E_EDITOR_ACTION ((editor), "monospaced")
+#define E_EDITOR_ACTION_PASTE(editor) \
+	E_EDITOR_ACTION ((editor), "paste")
 #define E_EDITOR_ACTION_PROPERTIES_RULE(editor) \
 	E_EDITOR_ACTION ((editor), "properties-rule")
 #define E_EDITOR_ACTION_PROPERTIES_TABLE(editor) \
diff --git a/e-util/e-editor-widget.c b/e-util/e-editor-widget.c
index b88ef8d..7930595 100644
--- a/e-util/e-editor-widget.c
+++ b/e-util/e-editor-widget.c
@@ -30,6 +30,9 @@ struct _EEditorWidgetPrivate {
 	gint inline_spelling	: 1;
 	gint magic_links	: 1;
 	gint magic_smileys	: 1;
+	gint can_copy		: 1;
+	gint can_cut		: 1;
+	gint can_paste		: 1;
 	gint can_redo		: 1;
 	gint can_undo		: 1;
 
@@ -51,6 +54,9 @@ enum {
 	PROP_MAGIC_LINKS,
 	PROP_MAGIC_SMILEYS,
 	PROP_SPELL_LANGUAGES,
+	PROP_CAN_COPY,
+	PROP_CAN_CUT,
+	PROP_CAN_PASTE,
 	PROP_CAN_REDO,
 	PROP_CAN_UNDO
 };
@@ -61,6 +67,7 @@ editor_widget_user_changed_contents_cb (EEditorWidget *widget,
 					gpointer user_data)
 {
 	gboolean can_redo, can_undo;
+
 	e_editor_widget_set_changed (widget, TRUE);
 
 	can_redo = webkit_web_view_can_redo (WEBKIT_WEB_VIEW (widget));
@@ -77,6 +84,31 @@ editor_widget_user_changed_contents_cb (EEditorWidget *widget,
 }
 
 static void
+editor_widget_selection_changed_cb (EEditorWidget *widget,
+				    gpointer user_data)
+{
+	gboolean can_copy, can_cut, can_paste;
+
+	can_copy = webkit_web_view_can_copy_clipboard (WEBKIT_WEB_VIEW (widget));
+	if ((widget->priv->can_copy ? TRUE : FALSE) != (can_copy ? TRUE : FALSE)) {
+		widget->priv->can_copy = can_copy;
+		g_object_notify (G_OBJECT (widget), "can-copy");
+	}
+
+	can_cut = webkit_web_view_can_cut_clipboard (WEBKIT_WEB_VIEW (widget));
+	if ((widget->priv->can_cut ? TRUE : FALSE) != (can_cut ? TRUE : FALSE)) {
+		widget->priv->can_cut = can_cut;
+		g_object_notify (G_OBJECT (widget), "can-cut");
+	}
+
+	can_paste = webkit_web_view_can_paste_clipboard (WEBKIT_WEB_VIEW (widget));
+	if ((widget->priv->can_paste ? TRUE : FALSE) != (can_paste ? TRUE : FALSE)) {
+		widget->priv->can_paste = can_paste;
+		g_object_notify (G_OBJECT (widget), "can-paste");
+	}
+}
+
+static void
 e_editor_widget_get_property (GObject *object,
 			      guint property_id,
 			      GValue *value,
@@ -112,6 +144,21 @@ e_editor_widget_get_property (GObject *object,
 				value, e_editor_widget_get_changed (
 				E_EDITOR_WIDGET (object)));
 			return;
+		case PROP_CAN_COPY:
+			g_value_set_boolean (
+				value, webkit_web_view_can_copy_clipboard (
+				WEBKIT_WEB_VIEW (object)));
+			return;
+		case PROP_CAN_CUT:
+			g_value_set_boolean (
+				value, webkit_web_view_can_cut_clipboard (
+				WEBKIT_WEB_VIEW (object)));
+			return;
+		case PROP_CAN_PASTE:
+			g_value_set_boolean (
+				value, webkit_web_view_can_paste_clipboard (
+				WEBKIT_WEB_VIEW (object)));
+			return;
 		case PROP_CAN_REDO:
 			g_value_set_boolean (
 				value, webkit_web_view_can_redo (
@@ -241,6 +288,36 @@ e_editor_widget_class_init (EEditorWidgetClass *klass)
 
 	g_object_class_install_property (
 		object_class,
+		PROP_CAN_COPY,
+		g_param_spec_boolean (
+			"can-copy",
+			"Can Copy",
+			NULL,
+			FALSE,
+			G_PARAM_READABLE));
+
+	g_object_class_install_property (
+		object_class,
+		PROP_CAN_CUT,
+		g_param_spec_boolean (
+			"can-cut",
+			"Can Cut",
+			NULL,
+			FALSE,
+			G_PARAM_READABLE));
+
+	g_object_class_install_property (
+		object_class,
+		PROP_CAN_PASTE,
+		g_param_spec_boolean (
+			"can-paste",
+			"Can Paste",
+			NULL,
+			FALSE,
+			G_PARAM_READABLE));
+
+	g_object_class_install_property (
+		object_class,
 		PROP_CAN_REDO,
 		g_param_spec_boolean (
 			"can-redo",
@@ -299,6 +376,8 @@ e_editor_widget_init (EEditorWidget *editor)
 
 	g_signal_connect (editor, "user-changed-contents",
 		G_CALLBACK (editor_widget_user_changed_contents_cb), NULL);
+	g_signal_connect (editor, "selection-changed",
+		G_CALLBACK (editor_widget_selection_changed_cb), NULL);
 }
 
 EEditorWidget *