Read only attribute support, closing #13

cppcms/form.h

@@ -533,6 +533,17 @@ namespace cppcms {
 			///
 			void disabled(bool);
 
+
+			///
+			/// Get the HTML \c readonly attribute.
+			///
+			bool readonly();
+
+			///
+			/// Set/Unset the HTML \c readonly attribute.
+			///
+			void readonly(bool);
+
 			///
 			/// Get the general user defined attribute string that can be added to the widget.
 			/// 
@@ -685,11 +696,12 @@ namespace cppcms {
 			uint32_t is_valid_  : 1;
 			uint32_t is_set_ : 1;
 			uint32_t is_disabled_ : 1;
+			uint32_t is_readonly_ : 1;
 			uint32_t is_generation_done_ : 1;
 			uint32_t has_message_ : 1;
 			uint32_t has_error_ : 1;
 			uint32_t has_help_ : 1;
-			uint32_t reserverd_ : 25;
+			uint32_t reserverd_ : 24;
 
 			struct _data;
 			booster::hold_ptr<_data> d;

src/form.cpp

@@ -277,6 +277,7 @@ base_widget::base_widget() :
 	is_valid_(1),
 	is_set_(0),
 	is_disabled_(0),
+	is_readonly_(0),
 	is_generation_done_(0),
 	has_message_(0),
 	has_error_(0),
@@ -408,6 +409,16 @@ void base_widget::disabled(bool v)
 	is_disabled_=v;
 }
 
+bool base_widget::readonly()
+{
+	return is_readonly_;
+}
+
+void base_widget::readonly(bool v)
+{
+	is_readonly_=v;
+}
+
 std::string base_widget::attributes_string()
 {
 	return attr_;
@@ -673,6 +684,9 @@ void text::render_attributes(form_context &context)
 	if(lm.second >= 0 && validate_charset()) {
 		output << "maxlength=\"" << cint(lm.second) << "\" ";
 	}
+	if(readonly()) {
+		output << "readonly=\"readonly\" ";
+	}
 }