New page-level events to "decorate" component event and page render links
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Key: TAP5-1190
URL: https://issues.apache.org/jira/browse/TAP5-1190
Project: Tapestry 5
Issue Type: New Feature
Components: tapestry-core
Affects Versions: 5.2.0
Reporter: Howard M. Lewis Ship
Priority: Minor
This is based on some customer work.
Customer really wanted URLs to include a series of (optional) values as query
parameters, not path info ... which makes sense, because you'd have a category
filter sometimes, a name filter sometimes, etc.
Anyway, this worked fine in most cases ... there's a method on the page to act
like the passivate event handler, but return a Link with the query parameters
added. The active event handler would extract the query parameters and store
them inside fields.
Got trickier handling event links; had to modify some low-level components to
fire a "decorateLink" event so that the page's event handler could add the
query parameters to the link.
It would be nice if these concepts were inside Tapestry; that after generating
a Link via the passivate event (or by building a Link using a supplied page
activation context) that an optional event (perhaps called "decorateLink")
would be triggered to add these extra query parameters.
Ideally, there would be two events, "decoratePageRenderLink" and
"decorateComponentEventLink". The first parameter would be the Link to
decorate. The second would be the PageRenderRequestParameters or
ComponentEventRequestParameters, as appropriate. This would give the event
handler method enough information to decide whether to decorate the link, and
what information to put into it.
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