Implement an model-based and event based refresh mechanism for XWiki Watch ui
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Key: XWATCH-83
URL: http://jira.xwiki.org/jira/browse/XWATCH-83
Project: XWiki Watch
Issue Type: Task
Components: Other
Affects Versions: 1.0M2
Reporter: Anca Paula Luca
The current mechanism of getting data from the wiki and displaying it in the
feed reader interface should be replaced with a new one that would meet the
following requirements:
- allow a model based user interface: right now, some widgets are extracting
their own data in from the wiki and only display it, without storing it in a
model. The advantages of a model based approach would be the deletion of all
DataManager calls in the ui and the possibility of optimized interface updates
based on old data and newly fetched one
- in the current implementation, there is high coupling between widgets and the
controller (Watch): the controller refreshes widgets and widgets refresh each
other on various changes of the data. We need an event based mechanism: the
controller published data changes events and the widgets subscribe to these
events and update accordingly.
- there are various places in the code where data or ui refresh is requested,
other than the controller and there should be none.
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