Widget is the base class for all web-based UI widgets.
Slots
- bodySource
-
WebOutStream body()
The buffered WebOutStream for the <body> element.
- callSource
-
Uri call(Method m, Uri uri := this.req.uri())
Return a Uri that can be used to call a specific method on a Widget, bypassing the normal
service
implementation. - finishResSource
-
virtual Void finishRes()
Finish the response. For HTML pages, this method is responsible for writing the ending
<head>
and<body>
tags in the respective buffers. - headSource
-
WebOutStream head()
The buffered WebOutStream for the <head> element.
- minusCallSource
-
Return a new Uri that removes the
Widget.call
specifics from the given Uri. - onCallSource
-
Handle invoking a method requested using a Uri from
Widget.call
. - serviceSource
-
override Void service()
Overrides web::Weblet.service
Handle configuring the inital Widget pipeline. To allow Widgets to be nested, we use two thread local Bufs to capture the output for the
<head>
and<body>
tags separately. After the request has been serviced, we flush the Bufs to the actual output stream.If this method is called again (on any instance) after the initial call, it short-circuits and simply calls the default
web::Weblet.service
implementation. - startResSource
-
virtual Void startRes()
Start the response. For HTML pages, this method is responsible for creating the markup up to and including the starting
<head>
and<body>
tags in their respective buffers. - uniqueSource
-
Str unique()
Return a name that is unique to this web request. The name returned can be used as a valid HTML name or id attribute, as well as a JavaScript variable name.