@progress/wct-a11y-spec

[ { "h2": "Accessibility Support" }, { "p": "Out of the box, the Telerik and Kendo UI Gantt provides extensive accessibility support and enables users with disabilities to acquire complete control over its features." }, { "p": "The Gantt is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 standards](https://www.w3.org/TR/WCAG22/) and [Section 508](http://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#keyboard-navigation) for its `component` role, provides options for [managing its focus](#managing-the-focus) and is tested against the most popular [screen readers](#screen-readers)." }, { "h3": "WAI-ARIA" }, { "p": "This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any." }, { "p": "The Gantt component is a composite component that is used to represent project planning." }, { "table": { "headers": [ "Selector", "Attribute", "Usage" ], "rows": [ { "Selector": "`.k-gantt`", "Attribute": "`role=application`", "Usage": "Indicates the Gantt's role as an application." } ] } }, { "p": "The Gantt component integrates the toolbar component and follows its wai-aria support." }, { "link": { "title": "ToolBar accessibility specification", "source": "{{toolbar_a11y_link}}" } }, { "p": "The main inner component in the Gantt is the TreeList." }, { "link": { "title": "TreeList accessibility specification", "source": "{{treelist_a11y_link}}" } }, { "p": "Another part of the component is the Splitter component and Wai-Aria support." }, { "link": { "title": "Splitter accessibility specification", "source": "{{splitter_a11y_link}}" } }, { "p": "The following Wai-Aria support is implemented in the TimeLine of the Gantt." }, { "table": { "headers": [ "Selector", "Attribute", "Usage" ], "rows": [ { "Selector": "`.k-gantt-timeline .k-grid-content`", "Attribute": "`role=tree`", "Usage": "Associates the role of the timeline as a tree." }, { "Selector": "`.k-gantt-timeline .k-gantt-rows`", "Attribute": "`role=presentation`", "Usage": "Used to build the accessibility tree." }, { "Selector": "`.k-gantt-timeline .k-gantt-columns`", "Attribute": "`role=presentation`", "Usage": "Used to build the accessibility tree." }, { "Selector": "`.k-gantt-timeline .k-gantt-tasks`", "Attribute": "`role=presentation`", "Usage": "Used to build the accessibility tasks." }, { "Selector": "`.k-gantt-timeline .k-task`", "Attribute": "`role=treeitem`", "Usage": "Associates the role of the timeline task as a tree item." }, { "Selector": "", "Attribute": "`aria-level`", "Usage": "Specifies the level of the task." }, { "Selector": "", "Attribute": "`aria-describedby=.k-tooltip id`", "Usage": "Gives more details for the task through its tooltip." }, { "Selector": "`.k-gantt-timeline .k-task .k-task-complete`", "Attribute": "`aria-hidden=true`", "Usage": "Hides the status element from the task." }, { "Selector": "`.k-gantt-timeline .k-task .k-task-actions`", "Attribute": "`aria-hidden=true`", "Usage": "Hides the actions element from the task." } ] } }, { "h3": "Keyboard Shortcuts" }, { "p": "The Gantt component is a container that consists of 4 logically separated structural elements:" }, { "ul": [ "Toolbar (`role=\"toolbar\"`);", "Splitter (`role=\"separator\"`);", "TreeList (`role=\"treegrid\"`);", "TimeLine (`role=\"tree\"`)" ] }, { "p": "Each of them is part of the page tab sequence and can be navigated to using the `Tab` key of the keyboard. The list above illustrates the **focus sequence**." }, { "p": "The `Toolbar` implements the keyboard navigation specification for a `ToolBar component`:" }, { "link": { "title": "ToolBar specification", "source": "{{toolbar_kb_link}}" } }, { "p": "The `Splitter` implements the keyboard navigation specification for a `Splitter component`" }, { "link": { "title": "Splitter specification", "source": "{{splitter_kb_link}}" } }, { "h4": "Gantt shortcuts" }, { "table": { "headers": [ "Shortcut", "Behavior" ], "rows": [ { "Shortcut": "`Alt/Opt(Mac) + 1,2,3,...`", "Behavior": "navigates to the view with the respective number" }, { "Shortcut": "`F10`", "Behavior": "Focuses the ToolBar." } ] } }, { "h4": "TreeList shortcuts" }, { "p": "The `TreeList` implements the keyboard navigation specification for a `TreeList component`:" }, { "link": { "title": "TreeList specification", "source": "{{treelist_kb_link}}" } }, { "table": { "headers": [ "Shortcut", "Behavior" ], "rows": [ { "Shortcut": "`Tab`", "Behavior": "Moves focus to the corresponding task in the TimeLine." }, { "Shortcut": "`Shift + Tab`", "Behavior": "If focus has been previously on the same line in the treelist, moves focus to last focused cell. Otherwise, focus the last cell on the same line." } ] } }, { "h4": "TimeLine Shortcuts" }, { "table": { "headers": [ "Shortcut", "Behavior" ], "rows": [ { "Shortcut": "`Home`", "Behavior": "Moves focus to first task." }, { "Shortcut": "`End`", "Behavior": "Moves focus to the last task." }, { "Shortcut": "`Up Arrow`", "Behavior": "Moves focus to previous task." }, { "Shortcut": "`Down Arrow`", "Behavior": "Moves focus to the next task." }, { "Shortcut": "`Left Arrow`", "Behavior": "Scrolls the view to the left." }, { "Shortcut": "`Right Arrow`", "Behavior": "Scrolls the view to the right." }, { "Shortcut": "`Enter`", "Behavior": "Gantt Popup Form is opened to provide editing of the task. The dependencies and field edit is made. On close focus is returned on the task." }, { "Shortcut": "`Delete`", "Behavior": "The task gets deleted. The focus is moved to the previous task." }, { "Shortcut": "`Alt/Opt(Mac) + Right Arrow`", "Behavior": "The task is expanded, if it contains child tasks. The task should remain in focus and the timeline should be scrolled to it." }, { "Shortcut": "`Alt/Opt(Mac) + Left Arrow`", "Behavior": "The task is collapsed, if it contains child tasks. The task should remain in focus and the timeline should be scrolled to it." } ] } }, { "h3": "Testing" }, { "p": "The Gantt has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers." }, { "h3": "Screen Readers" }, { "p": "The Gantt has been tested with the following screen readers and browsers combinations:" }, { "table": { "headers": [ "Environment", "Tool" ], "rows": [ [ "Firefox", "NVDA" ], [ "Chrome", "JAWS" ], [ "Microsoft Edge", "JAWS" ] ] } } ]