Plugin re-arch work for DataGrid

[evan]

The purpose of the plugin work is to improve componentization of the existing DataGrid, make it easier for customization and finally set up a plugin architecture.

Considering the backward compatibility and also due to the complexity of DataGrid,the Plugin work will be pursued in an evolving way with the following three phases: 

Phase 1. Restructure or divide part of core DataGrid into components/functions with more appropriate granularity

• [the major and most complex part]

  Phase 2.  Set up Plugin platform, e.g. Plug-in Manager responsible for plugin life-cycle management and collaborating dependencies or conflicts among plugins.   Phase 3.  Implement some new features based on the plugin platform.

More details, please refer to the ​impl draft(in progress)

[Adam Peller]

Patch from Evan (IBM, CCLA)

[Adam Peller]

Descriptions:

1. Make the Events component extendable
2. Remove some duplicate event dispatching logic
3. Centralize all the event related stuff in dojox.grid._Event.js to make the logic simper
   • Previously Events logic spread across many components when an native HTML event triggered
4. TODO - make the key handling logic simper e.g. divide the big function of OnKeyDown
5. TODO - handle possible events conflicts among plug-ins(in the future)

[Bryan Forbes]

Is this still valid with dgrid and gridx work going on?

[Evan]

Replying to BryanForbes:

Is this still valid with dgrid and gridx work going on?

Not anymore, it's now an obsolete one, closing this.