Added class for TextArea

library/server/wsf_html/webcontrol/wsf_textarea_control.e

@@ -0,0 +1,81 @@
+note
+	description: "Summary description for {WSF_TEXT_CONTROL}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	WSF_TEXTAREA_CONTROL
+
+inherit
+
+	WSF_CONTROL
+
+create
+	make_textarea
+
+feature {NONE}
+
+	make_textarea (n, t: STRING)
+		do
+			make (n)
+			text := t
+		end
+
+feature {WSF_PAGE_CONTROL, WSF_CONTROL} -- STATE MANAGEMENT
+
+	set_state (new_state: JSON_OBJECT)
+			-- Restore text from json
+		do
+			if attached {JSON_STRING} new_state.item (create {JSON_STRING}.make_json ("text")) as new_text then
+				text := new_text.unescaped_string_32
+			end
+		end
+
+	state: JSON_OBJECT
+			-- Return state which contains the current text and if there is an event handle attached
+		do
+			create Result.make
+			Result.put (create {JSON_STRING}.make_json (text), create {JSON_STRING}.make_json ("text"))
+			Result.put (create {JSON_BOOLEAN}.make_boolean (attached change_event), create {JSON_STRING}.make_json ("callback_change"))
+		end
+
+feature --EVENT HANDLING
+
+	set_change_event (e: attached like change_event)
+			-- Set text change event handle
+		do
+			change_event := e
+		end
+
+	handle_callback (cname: STRING; event: STRING)
+		do
+			if Current.control_name.is_equal (cname) and attached change_event as cevent then
+				if event.is_equal ("change") then
+					cevent.call ([])
+				end
+			end
+		end
+
+feature
+
+	render: STRING
+		do
+			Result := "<textarea data-name=%"" + control_name + "%" data-type=%"WSF_TEXTAREA_CONTROL%">" + text + "</textarea>"
+		end
+
+	set_text (t: STRING)
+		do
+			if not t.is_equal (text) then
+				text := t
+				state_changes.replace (create {JSON_STRING}.make_json (text), create {JSON_STRING}.make_json ("text"))
+			end
+		end
+
+feature
+
+	text: STRING
+
+	change_event: detachable PROCEDURE [ANY, TUPLE []]
+
+end