Improvement for the Copy button in the Output Log

Now if no text is selected, pressing the Copy button copies the entire text.

(cherry picked from commit fb6eb21afc)

editor/editor_log.cpp

@@ -82,8 +82,15 @@ void EditorLog::_clear_request() {
 }
 
 void EditorLog::_copy_request() {
+	String text = log->get_selected_text();
 
-	log->selection_copy();
+	if (text == "") {
+		text = log->get_text();
+	}
+
+	if (text != "") {
+		OS::get_singleton()->set_clipboard(text);
+	}
 }
 
 void EditorLog::clear() {

scene/gui/rich_text_label.cpp

@@ -2578,10 +2578,10 @@ bool RichTextLabel::search(const String &p_string, bool p_from_selection, bool p
 	return false;
 }
 
-void RichTextLabel::selection_copy() {
-
-	if (!selection.active || !selection.enabled)
-		return;
+String RichTextLabel::get_selected_text() {
+	if (!selection.active || !selection.enabled) {
+		return "";
+	}
 
 	String text;
 
@@ -2611,6 +2611,12 @@ void RichTextLabel::selection_copy() {
 		item = _get_next_item(item, true);
 	}
 
+	return text;
+}
+
+void RichTextLabel::selection_copy() {
+	String text = get_selected_text();
+
 	if (text != "") {
 		OS::get_singleton()->set_clipboard(text);
 	}

scene/gui/rich_text_label.h

@@ -473,6 +473,7 @@ public:
 
 	void set_selection_enabled(bool p_enabled);
 	bool is_selection_enabled() const;
+	String get_selected_text();
 	void selection_copy();
 
 	Error parse_bbcode(const String &p_bbcode);