When we read the MUC configuration, a file which exists but is empty
will not error, but will cause all configuration to be empty.
We already perform an {{is_array()}} check on the {{$configuration}}
variable, but the default value for {{$configuration}} is an empty
array. In the case where the file exists, but is empty, no errors occur
when the file is loaded, and the initial {{$configuration}} value is
not overwritten, leading to the file being replaced with an empty copy.
Having mixed $data in badge exporters is causing some issues.
As all these exporters are using $data as an object, $data can be
converted to object in the constructor, to avoid errors and get
the expected behaviour always.
Ensure that there is always one active element in the list of selected
autocomplete elements.
Without this we have issues beacuse clicking on the link makes the first
one active if one is not already active, and this turns a click event
into a drag event, which means that it is not deleted.
Returning a value of `false` in an event handler has the effect of
calling event.preventDefault() and event.stopPropagation().
This is neither obvious, nor desirable in this situation.
The documented values that jQuery.attr() accepts are String, Number, or
null. For some reason, when we pass a Boolean value, the subsequent
click handler does not work in some situations.
Changing this to take a Number, and unsetting it when empty, resolves
this issue.
The accessibleChange custom interaction event was only listening for
blur and focus, however some OS/browser combinations do not emit these
events until the element is explicitly blurred. This is notably
different on Firefox on some Operating Systems.
Recent changes in MDL-68167 explicitly moved the user participants page
filter module to use the accessibleChange event, which means that the
selections are now only triggered on an explicit blur when using
Firefox. This highlight a bug whereby, when the mouse is used to make a
selection, the event is not triggered until the element is blurred.
This change modifies the accessibleChange event to ignore the `change`
event where it was triggered by the keyboard and where that keybaord
event was not a [return] or [escape] keypress, but to otherwise respect
the native change event.
The `blur` event does not bubble, but the `focusout` events are not
available in all supported versions of Firefox.
Rather than switching event, this patch using event capture to
effectively achieve the same result and bubble the event up through the
DOM to the delegated listener.
There should be no functional change with this patch, except to support
Firefox fully.
