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EWF/library/server/wsf_html/webcontrol/wsf_page_control.e
2013-08-27 16:00:24 +02:00

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note
description: "Summary description for {WSF_PAGE_CONTROL}."
author: ""
date: "$Date$"
revision: "$Revision$"
deferred class
WSF_PAGE_CONTROL
feature {NONE} -- Initialization
make (req: WSF_REQUEST; res: WSF_RESPONSE)
do
request := req
response := res
end
feature -- Access
request: WSF_REQUEST
response: WSF_RESPONSE
feature
initialize_controls
deferred
end
process
deferred
end
feature
execute
local
event: detachable STRING
control_name: detachable STRING
states: JSON_OBJECT
do
initialize_controls
control_name := get_parameter ("control_name")
event := get_parameter ("event")
if attached event and attached control_name and attached control then
control.handle_callback (control_name, event, Current)
create states.make
control.read_state (states)
response.put_header ({HTTP_STATUS_CODE}.ok, <<["Content-Type", "application/json"]>>)
response.put_string (states.representation)
else
process
render
end
end
render
local
data: STRING
do
data := control.render
response.put_header ({HTTP_STATUS_CODE}.ok, <<["Content-Type", "text/plain"], ["Content-Length", data.count.out]>>)
response.put_string (data)
end
get_parameter (key: STRING): detachable STRING
local
value: detachable WSF_VALUE
do
Result := VOID
value := request.query_parameter (key)
if attached value then
Result := value.as_string.value
end
end
feature {NONE}
control: WSF_CONTROL
end