Objectives:
* Make it possible to add items to toolbars without having to have all
toolbars know about the items in advance
* Make it possible to specialize an existing tool and have it be used
instead of the base implementation
Approach:
* Tools are named using a path-style category/id/ext system, making them
selectable, the latter component being used to differentiate extended
tools from their base classes, but is ignored during selection
* Toolbars have ToolGroups, which include or exclude tools by category or
category/id, and order them by promoting and demoting selections of
tools by category or category/id
Future:
* Add a way to place available but not yet placed tools in an "overflow"
group
* Add a mode to ToolGroup to make the tools a multi-column drop-down style
list with labels so tools with less obvious icons are easier to identify
- and probably use this as the overflow group
Change-Id: I7625f861435a99ce3d7a2b1ece9731aaab1776f8
Objectives:
* Use a class for toolbar groups to add more functionality later
* Rename addTools method to setup
Changes:
*.php
* Add link to new file
* Move ui element classes up for more general use
ve.init.mw.ViewPageTarget.js, ve.init.sa.Target.js, ve.ui.Context.js,
ve.ui.SurfaceWidget.js
* Update use of addTools method
ve.ui.Tool.css, ve.ui.Toolbar.css
* Move styles between sheets
ve.ui.Toolbar.js
* Rename addTools to setup
* Use ve.ui.ToolGroup objects when building tools
ve.ui.ToolGroup.js
* New class, encapsulates tools
Change-Id: Ic3a643634a80a8ac7d6f6f47f031d001c7efaee7
