Add Grid Widget

library/server/wsf_html/webcontrol/grid/wsf_grid_control.e

@@ -0,0 +1,96 @@
+note
+	description: "Summary description for {WSF_GRID_CONTROL}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	WSF_GRID_CONTROL [G -> WSF_ENTITY]
+
+inherit
+
+	WSF_CONTROL
+
+create
+	make_grid
+
+feature {NONE}
+
+	make_grid (n: STRING; a_columns: ITERABLE [WSF_GRID_COLUMN]; a_datasource: WSF_DATASOURCE [G])
+		do
+			make (n, "div")
+			columns := a_columns
+			datasource := a_datasource
+		end
+
+feature {WSF_PAGE_CONTROL, WSF_CONTROL} -- STATE MANAGEMENT
+
+	update
+		do
+		end
+
+	set_state (new_state: JSON_OBJECT)
+			-- Restore html from json
+		do
+			if attached {JSON_OBJECT} new_state.item (create {JSON_STRING}.make_json ("datasource")) as datasource_state then
+				datasource.set_state (datasource_state)
+			end
+		end
+
+	state: JSON_OBJECT
+			-- Return state which contains the current html and if there is an event handle attached
+		do
+			create Result.make
+			Result.put (datasource.state, create {JSON_STRING}.make_json ("datasource"))
+		end
+
+feature --EVENT HANDLING
+
+	handle_callback (cname: STRING; event: STRING)
+		do
+		end
+
+feature -- Implementation
+
+	render_header: STRING
+		do
+			Result := ""
+			across
+				columns as c
+			loop
+				Result.append (render_tag_with_tagname ("th", c.item.header, "", ""))
+			end
+			Result := render_tag_with_tagname ("thead", render_tag_with_tagname ("tr", Result, "", ""), "", "")
+		end
+
+	render_body: STRING
+		local
+			row: STRING
+		do
+			Result := ""
+			across
+				datasource.data as entity
+			loop
+				row := ""
+				across
+					columns as c
+				loop
+					row.append (render_tag_with_tagname ("td", c.item.render_column (entity.item), "", ""))
+				end
+				Result.append (render_tag_with_tagname ("tr", row, "", ""))
+			end
+			Result :=render_tag_with_tagname ("tbody", Result, "", "")
+		end
+
+	render: STRING
+		do
+			Result := render_tag (render_tag_with_tagname ("table", render_header + render_body, "", "table table-striped"), "")
+		end
+
+feature
+
+	columns: ITERABLE [WSF_GRID_COLUMN]
+
+	datasource: WSF_DATASOURCE [G]
+
+end