Note: Application logic should not interact with the component's properties or invoke its methods until the BusyContext indicates that the component is ready for interaction.
Slots
JET elements can have up to two types of child content:
- Any child element with a
slotattribute will be moved into that named slot, e.g.<span slot='startIcon'>...</span>. All supported named slots are documented below. Child elements with unsupported named slots will be removed from the DOM. - Any child element lacking a
slotattribute will be moved to the default slot, also known as a regular child. This is documented under the "Default" heading below.
-
Default
-
The <oj-conveyor-belt> element manages overflow for its child elements and allows scrolling among them. Child elements of the <oj-conveyor-belt> must all be siblings at the same level.
If the elements to be scrolled among are nested descendants and not direct children of the conveyor belt, the
content-parentattribute should specify the nested elements direct parent.Examples
Initialize the conveyor belt with child content specified:
<oj-conveyor-belt> <oj-button>Alpha</oj-button> <oj-button>Beta</oj-button> <oj-button>Gamma</oj-button> <oj-button>Delta</oj-button> <oj-button>Epsilon</oj-button> <oj-button>Zeta</oj-button> </oj-conveyor-belt>Initialize the conveyor belt with nested child content specified:
<oj-conveyor-belt content-parent='#myContentElem'> <div id='myContentElem'> <oj-button>Item 1</oj-button> <oj-button>Item 2</oj-button> <oj-button>Item 3</oj-button> <oj-button>Item 4</oj-button> <oj-button>Item 5</oj-button> </div> </oj-conveyor-belt> -
contextMenu
-
The contextMenu slot is set on the
oj-menuwithin this element. This is used to designate the JET Menu that this component should launch as a context menu on right-click, Shift-F10, Press & Hold, or component-specific gesture. If specified, the browser's native context menu will be replaced by the JET Menu specified in this slot.The application can register a listener for the Menu's ojBeforeOpen event. The listener can cancel the launch via event.preventDefault(), or it can customize the menu contents by editing the menu DOM directly, and then calling refresh() on the Menu.
To help determine whether it's appropriate to cancel the launch or customize the menu, the ojBeforeOpen listener can use component API's to determine which table cell, chart item, etc., is the target of the context menu. See the JSDoc and demos of the individual components for details.
Keep in mind that any such logic must work whether the context menu was launched via right-click, Shift-F10, Press & Hold, or component-specific touch gesture.
Example
Initialize the component with a context menu:
<oj-some-element> <-- use the contextMenu slot to designate this as the context menu for this component --> <oj-menu slot="contextMenu" style="display:none" aria-label="Some element's context menu"> ... </oj-menu> </oj-some-element>
Attributes
-
(nullable) content-parent :string
-
Specify the selector of the descendant DOM element in the conveyorBelt that directly contains the items to scroll among.
This attribute value is
nullby default, meaning that the items to scroll among are direct children of the oj-conveyor-belt. In some cases, the items to scroll among are not direct children of the oj-conveyor-belt, but are instead nested in a descendant DOM element. In such cases, this attribute should be specified to point to the descendant DOM element whose direct children are the items to scroll among. For example, if the items to scroll among are buttons in a buttonset, the buttons are direct children of the DOM element representing the buttonset. The buttonset would be the direct child of the conveyorBelt. If theidof the buttonset DOM element were'myContentElem', then content-parent would be specified as'#myContentElem'.WARNING: The selector specified for this attribute should match only a single descendant DOM element. If multiple elements are matched, then only the first one will be used. Applications should not depend on this behavior because we reserve the right to change it in the future in order to allow and use multiple matching elements.
- Default Value:
null
Names
Item Name Property contentParentProperty change event contentParentChangedProperty change listener attribute (must be of type function) on-content-parent-changedExamples
Initialize the conveyorBelt with the
content-parentattribute specified:<oj-conveyor-belt content-parent='#myContentElem'> <div id='myContentElem'> <oj-button>Item 1</oj-button> <oj-button>Item 2</oj-button> <oj-button>Item 3</oj-button> <oj-button>Item 4</oj-button> <oj-button>Item 5</oj-button> </div> </oj-conveyor-belt>Get or set the
contentParentproperty after initialization:// getter var contentParent = myConveyorBelt.contentParent; // setter myConveyorBelt.contentParent = '#myContentElem'; -
orientation :string
-
Specify the orientation of the conveyorBelt.
- Default Value:
"horizontal"
Supported Values:
Name Type Description "horizontal"string Orient the conveyorBelt horizontally. "vertical"string Orient the conveyorBelt vertically. Names
Item Name Property orientationProperty change event orientationChangedProperty change listener attribute (must be of type function) on-orientation-changedExamples
Initialize the conveyorBelt with the
orientationattribute specified:<oj-conveyor-belt orientation='vertical'> </oj-conveyor-belt>Get or set the
orientationproperty after initialization:// getter var orientation = myConveyorBelt.orientation; // setter myConveyorBelt.orientation = 'vertical'; -
translations :Object|null
-
A collection of translated resources from the translation bundle, or
nullif this component has no resources. Resources may be accessed and overridden individually or collectively, as seen in the examples.If the component does not contain any translatable resource, the default value of this attribute will be
null. If not, an object containing all resources relevant to the component.If this component has translations, their documentation immediately follows this doc entry.
Names
Item Name Property translationsProperty change event translationsChangedProperty change listener attribute (must be of type function) on-translations-changedExamples
Initialize the component, overriding some translated resources and leaving the others intact:
<!-- Using dot notation --> <oj-some-element translations.some-key='some value' translations.some-other-key='some other value'></oj-some-element> <!-- Using JSON notation --> <oj-some-element translations='{"someKey":"some value", "someOtherKey":"some other value"}'></oj-some-element>Get or set the
translationsproperty after initialization:// Get one var value = myComponent.translations.someKey; // Set one, leaving the others intact. Always use the setProperty API for // subproperties rather than setting a subproperty directly. myComponent.setProperty('translations.someKey', 'some value'); // Get all var values = myComponent.translations; // Set all. Must list every resource key, as those not listed are lost. myComponent.translations = { someKey: 'some value', someOtherKey: 'some other value' };
Methods
-
getProperty(property) → {any}
-
Retrieves a value for a property or a single subproperty for complex properties.
Parameters:
Name Type Description propertystring The property name to get. Supports dot notation for subproperty access. - Since:
- 4.0.0
Returns:
- Type
- any
Example
Get a single subproperty of a complex property:
var subpropValue = myComponent.getProperty('complexProperty.subProperty1.subProperty2'); -
refresh() → {void}
-
Refreshes the visual state of the conveyorBelt. JET elements require a
refresh()after the DOM is programmatically changed underneath the element.This method does not accept any arguments.
Returns:
- Type
- void
Example
Invoke the
refreshmethod:myConveyorBelt.refresh(); -
setProperties(properties) → {void}
-
Performs a batch set of properties.
Parameters:
Name Type Description propertiesObject An object containing the property and value pairs to set. - Since:
- 4.0.0
Returns:
- Type
- void
Example
Set a batch of properties:
myComponent.setProperties({"prop1": "value1", "prop2.subprop": "value2", "prop3": "value3"}); -
setProperty(property, value) → {void}
-
Sets a property or a single subproperty for complex properties and notifies the component of the change, triggering a [property]Changed event.
Parameters:
Name Type Description propertystring The property name to set. Supports dot notation for subproperty access. valueany The new value to set the property to. - Since:
- 4.0.0
Returns:
- Type
- void
Example
Set a single subproperty of a complex property:
myComponent.setProperty('complexProperty.subProperty1.subProperty2', "someValue");