[empathy] factor out empathy_chat_copy()

[Guillaume Desmottes <gdesmott src gnome org>]

commit dfa4c7069189ead061488b3057fd56f86f6d89a2
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Wed Jun 27 16:05:02 2012 +0200

    factor out empathy_chat_copy()
    
    Much easier to understand its logic that way.

 libempathy-gtk/empathy-chat.c |   95 +++++++++++++++++++++++++----------------
 1 files changed, 58 insertions(+), 37 deletions(-)
---
diff --git a/libempathy-gtk/empathy-chat.c b/libempathy-gtk/empathy-chat.c
index e9ec846..fc2100b 100644
--- a/libempathy-gtk/empathy-chat.c
+++ b/libempathy-gtk/empathy-chat.c
@@ -4216,51 +4216,72 @@ empathy_chat_cut (EmpathyChat *chat)
 	}
 }
 
-void
-empathy_chat_copy (EmpathyChat *chat)
+static gboolean
+copy_from_chat_view (EmpathyChat *chat)
+{
+	if (!empathy_chat_view_get_has_selection (chat->view))
+		return FALSE;
+
+	empathy_chat_view_copy_clipboard (chat->view);
+	return TRUE;
+}
+
+static gboolean
+copy_from_input (EmpathyChat *chat)
 {
 	GtkTextBuffer *buffer;
+	GtkClipboard *clipboard;
+
+	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
+	if (!gtk_text_buffer_get_has_selection (buffer))
+		return FALSE;
+
+	clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
+	gtk_text_buffer_copy_clipboard (buffer, clipboard);
+	return TRUE;
+}
+
+static gboolean
+copy_from_topic (EmpathyChat *chat)
+{
+	EmpathyChatPriv *priv = GET_PRIV (chat);
+	gint start_offset;
+	gint end_offset;
+	gchar *start;
+	gchar *end;
+	gchar *selection;
+	const gchar *topic;
+	GtkClipboard *clipboard;
+
+	if (!gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
+						       &start_offset,
+						       &end_offset))
+		return FALSE;
+
+	topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
+	start = g_utf8_offset_to_pointer (topic, start_offset);
+	end = g_utf8_offset_to_pointer (topic, end_offset);
+	selection = g_strndup (start, end - start);
+
+	clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
+	gtk_clipboard_set_text (clipboard, selection, -1);
 
+	g_free (selection);
+	return TRUE;
+}
+
+void
+empathy_chat_copy (EmpathyChat *chat)
+{
 	g_return_if_fail (EMPATHY_IS_CHAT (chat));
 
-	if (empathy_chat_view_get_has_selection (chat->view)) {
-		empathy_chat_view_copy_clipboard (chat->view);
+	if (copy_from_chat_view (chat))
 		return;
-	}
 
-	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
-	if (gtk_text_buffer_get_has_selection (buffer)) {
-		GtkClipboard *clipboard;
-
-		clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
+	if (copy_from_input (chat))
+		return;
 
-		gtk_text_buffer_copy_clipboard (buffer, clipboard);
-	}
-	else {
-		gint start_offset;
-		gint end_offset;
-		EmpathyChatPriv *priv = GET_PRIV (chat);
-
-		if (gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
-							       &start_offset,
-							       &end_offset)) {
-			gchar *start;
-			gchar *end;
-			gchar *selection;
-			const gchar *topic;
-			GtkClipboard *clipboard;
-
-			topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
-			start = g_utf8_offset_to_pointer (topic, start_offset);
-			end = g_utf8_offset_to_pointer (topic, end_offset);
-			selection = g_strndup (start, end - start);
-
-			clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
-			gtk_clipboard_set_text (clipboard, selection, -1);
-
-			g_free (selection);
-		}
-	}
+	copy_from_topic (chat);
 }
 
 void