- Feedback from James Craig on improving the accessiblity of DataTables.
Since the `role=grid` option is added to the DataTables table, we
should also add `role=row` to the rows in the table so the browsers
can see them correctly. As James notes, it is debatable if this is
needed or not but it is required in current Chrome and Webkit.
- Webkit do now allow roles to be optional in the nighties - see:
https://bugs.webkit.org/show_bug.cgi?id=131819 . Once Apple deploy
this in a Safari update, and Chrome also deploy support, I think this
should be removed from DataTables core, since it will no longer be
needed in the latest browsers, and manipulating the DOM can hit
performance a bit.
- It is useful to be able to filter row indexes by a condition and then
operate on the resulting array of indexes, but before the selector
would only itterate over real arrays. So if you passed is an API
instance with the result set being the indexes to delete, it wouldn't
work!
- Fix is to loop over anything which has a `length` property
- Thread 20572
- Remove the aria-relevant from the info text to use the default,
otherwise it was reading information that isn't very useful
- Change info text role to `status`
- Remove `role=row` from header - this is experimental and might change.
Might need it on this row and all rows in the table
- Based on feedback from James Craig (thanks!)
- If you were to click the 'previous' button when on the first page, the
table would redraw - that's the easiest manifestation of this bug to
see. There is no need to redraw the table when the paging hasn't
changed, so don't.
- This fixes DataTables/DataTables #304
- Because DataTables is destroying and creating elements for the paging
control, focus is lost when navigating via keyboard. This is a real
pain when trying to operate DataTables that way! Fix is to refocus on
the new element.
- If you used client-side processing ajax, the parameter passed into
_fnBuildAjax is an array, needed for the old 1.9 compatiblity, but the
ajax wasn't transforming this into a data object and then sending it
to the server. The fix is to check if the data passed in is an array
or not - if so, transform it to an object
- If you use multiple column definations such that a columns' sorting
options are initially disabled and then enabled, the sorting classes
for the header were not being applied correctly.
- The fix is to always assign classes based on the most up-to-date
information for the column.
- This fixes DataTables/DataTables #303
- The resolution of unknown sorting types was being done after the
sorting structure array of objects was being calculated. As such, a
string sort was always being done in the first instance!
- This fixes thread 20433
- In a fenced code block, need to encode the HTML elements. However, the
HTML was being detected and saved first. Run the fencer first.
- Type links updated
- When invalidating a DOM row, DataTables wasn't taking into account the
fact that the columns in the row might be hidden. This means that the
array of data read is shortened by the number of hidden columns, and
thus the data is corrupted.
- Fix is to read from the known cells if the row already exists
- Issue here was that when doing the camelCase to hungarian conversion
on objects, the user object was copying over the hungarian default.
This meant that parameters were lost and things broke! The fix is to
decend into the object
- See thread 20233 for the original report
- DataTables' smart filtering now has the ability to search for an exact
string, in the given order, over multiple words. This is done by
providing the exact match search string in quotes - for example:
Angela "Cheif Exec" London
Will match three terms - `Angela`, `Cheif Exec` and `London`. Those
three terms will be matched in any order.
- This matches the search behaviour that we all know and love in Google!
- It can be disabled along with the rest of DataTables' smart filtering
using the `smart` option.
- This enhancement comes courtesy of Barry Keepence. Original forum
thread: http://datatables.net/forums/discussion/16250/. Thanks!
- See thread 20075 for the original report
- Basically the issue here was that the object being used for the API
extension on objects (e.g. `table.ajax` is an object) the object was
not unique to each API instance, so it was being shared between
instances and as a result, whatever instance was created last, would
win!
- Fix is to use a new object each time.
- DataTables uses the `DT` namespace for events internally and will
remove them automatically on destroy, but `dt` is used for public
events. As such, the public events used internally should use `.dt.DT`
to ensure that the listener works as expected, but also so that the
destroy call will remove these listeners
- This is to preserve user added listeners on destroy. If they want to
remove their listeners to prevent memory leaks, then they should do
so. But DataTables won't do it for them, as actually, you might want
to keep your event listeners!
- fnServerData's second parameter should be an array of objects with
name/value pairs. It was being passed through as the more modern
object, but fnServerData is only present for compatiblity with 1.9 and
should the original format should be retained. This is done with a
simple map function
found
- The old fnGetData method would return null, rather than undefined for
some reason if a given row was not found in the DataTable. The new
wrapper api for the legacy interface should do the same.
- Previously if you cancelled an Ajax request, or the browser did (for
example following a link) the error handler would be entered and show
an alert. This just ensures that the request is complete before
showing an error
- Previously when using columns.render as an object, you had to supply
an `_` option which was the fallback. However, I've now made it so
that if there is no `_` option it will just use the raw data from
`columns.data`
- I've come accross a lot of cases recently where numbers need to be
formatted for display, so I wanted to introduce rendering helpers for
DataTables to make this easier. Only one helper introduced here -
`$.fn.dataTable.render.number()` which will return an object that can
be used by `columns.render` to format "raw" numbers.
- The child row feature of DataTables should be able to take a `tr`
element and add that directly as a child. That wasn't working due to a
logic error before.
