[evolution/wip/webkit-composer: 14/262] Change Copy/Cut/Paste sensitivity according to selection

[Tomas Popela <tpopela src gnome org>]

commit 23876f7c05a9d64940a0ad8cb28e90496e303203
Author: Dan Vrátil <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 *