Implement an accessible aria tree widget, from a nested unordered list. Based on http://oaa-accessibility.org/example/41/
To respond to selection changed events - use tree.on("selectionchanged", handler). The handler will receive an array of nodes, which are the list items that are currently selected. (Or a single node if multiselect is disabled).
- Source:
- Copyright:
- 2015 Damyon Wiese
- 2015 Damyon Wiese
- License:
- http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
Members
(inner) collapsedImage :String
- Source:
The html for a collapsed tree node twistie.
Type:
- String
(inner) expandedImage :String
- Source:
The html for an expanded tree node twistie.
Type:
- String
Methods
(inner) bindEventHandlers()
- Source:
Bind the event listeners we require.
(inner) collapseGroup(item)
- Source:
Collapse an expanded group.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
(inner) expandGroup(item)
- Source:
Expand a collapsed group.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
(inner) handleBlur() → {Boolean}
- Source:
Handle a blur event
Returns:
- Type
- Boolean
(inner) handleClick(item, e) → {Boolean}
- Source:
Handle a click (select).
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
e |
Event | The event. |
Returns:
- Type
- Boolean
(inner) handleDblClick(item, e) → {Boolean}
- Source:
Handle a double click (expand/collapse).
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
e |
Event | The event. |
Returns:
- Type
- Boolean
(inner) handleExpandCollapseClick(item, e) → {Boolean}
- Source:
Handle a click (select).
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
e |
Event | The event. |
Returns:
- Type
- Boolean
(inner) handleFocus(item) → {Boolean}
- Source:
Handle a focus event
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | item is the jquery id of the parent item of the group |
Returns:
- Type
- Boolean
(inner) handleKeyDown(item, e) → {Boolean}
- Source:
Handle a key down event - ie navigate the tree.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
e |
Event | The event. |
Returns:
- Type
- Boolean
(inner) handleKeyPress(item, e) → {Boolean}
- Source:
Handle a key press event - ie navigate the tree.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
e |
Event | The event. |
Returns:
- Type
- Boolean
(inner) init()
- Source:
Init this tree
(inner) multiSelectItem(item)
- Source:
Select all the items between the last focused item and this currently focused item.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the newly selected item. |
(inner) on(eventname, handler)
- Source:
Attach an event listener to the tree.
Parameters:
| Name | Type | Description |
|---|---|---|
eventname |
String | This is the name of the event to listen for. Only 'selectionchanged' is supported for now. |
handler |
function | The function to call when the event is triggered. |
(inner) selectItem(item)
- Source:
Select a single item. Make sure all the parents are expanded. De-select all other items.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the newly selected item. |
(inner) toggleGroup(item)
- Source:
Expand or collapse a group.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |
(inner) toggleItem(item)
- Source:
Toggle the selected state for an item back and forth.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the item to toggle. |
(inner) triggerChange()
- Source:
Whenever the currently selected node has changed, trigger an event using this function.
(inner) updateFocus(item)
- Source:
Set the focus to this item.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
Object | is the jquery id of the parent item of the group |