The Scheduler has been designed based on the WAI-ARIA specifications, thus applying the appropriate ARIA roles, states and properties for the Scheduler elements. It is also available with a built-in keyboard navigation support, making it easier for the people who use assistive technologies or who completely rely on the Keyboard support. As per the accessibility standard, the navigated dates, views and other interactive actions performed on the Scheduler will be read out to the target users who use assistive technologies such as screen readers.
The Scheduler makes use of the most required ARIA attributes such as
role to support the accessibility in it. To be more accurate, it must be used with an ARIA compliant browser along with the screen reader running from backend.
The Scheduler parent element is assigned with a role of
main, to denote it as the main content of a component as well as a unique element of the entire document.
The following ARIA attributes are used in the Scheduler.
|role=“main”||This attribute added to the Scheduler element describes the actual role of the element and denote it as a main and unique content.|
|aria-label||This attribute is assigned to the Scheduler parent element and its default value is Scheduler’s current date. On every time, the date is navigated, this attribute is updated with appropriate current date values. It is also assigned to other scheduler UI elements such as previous and next date navigation buttons depicting its purpose, div element displaying date range in the header bar and appointment elements.|
|role=“link”||This attribute is added to the
|role=“row”||This attribute is added to the
|role=“gridcell”||This attribute is assigned to the
|role=“button”||This attribute is assigned to the appointments of Scheduler, to denote it as a clickable element.|
|aria-readonly||This attribute is assigned to the appointments of Scheduler and defaults to
|aria-selected||This attribute is assigned to both the work cells as well as appointments of Scheduler and defaults to
|aria-grabbed||This attribute is assigned to the appointments of Scheduler and defaults to
|aria-disabled||This attribute is assigned to the clickable elements on Scheduler such as previous and next date navigation buttons and view navigation buttons, and defaults to
|aria-atomic||This attribute is assigned to the date range element displayed on the Scheduler header bar, to indicate that when date change takes place, the entire live region (Scheduler) should be updated to the user. It is set to
|aria-live=“assertive”||This attribute is assigned to the date range element displayed on the Scheduler header bar, to indicate that it updates the date values frequently on every time the user navigates back and forth between the dates. The value
All the Scheduler actions can be controlled via keyboard keys by using the
AllowKeyboardInteraction property which is set to
true by default. The following are the standard keys that work on Scheduler.
|Alt + j||Focuses the Scheduler element [provided from application end].|
|Tab||Focuses the first or active item on the Scheduler header bar and then move the focus to the next available event elements. If no events present, then focus moves out of the component.|
|Shift + Tab||Reverse focusing of the
|Enter||Opens the quick info popup on the selected cells or events.|
|Escape||Closes any of the popup that are in open state.|
|Arrow||To move onto the next available cells in either of the needed directions. (left, right, top and right)|
|Shift + Arrow||For multiple cell selection on either direction.|
|Delete||Deletes one or more selected events.|
|Ctrl + Click on events||To select multiple events.|
|Alt + Number (from 1 to 6)||To switch between the views of Scheduler.|
|Ctrl + Left Arrow||To navigate to the previous date period.|
|Ctrl + Right Arrow||To navigate to the next date period.|
|Left or Right Arrow||On pressing any of these keys, when focus is currently on the Schedule header bar, moves the focus to the previous or next items in the header bar.|
|Space or Enter||It activates any of the focused items.|
|Page Up & Page Down||To scroll through the work cells area.|
|Home||To move the selection to the first cell of Scheduler.|