Element: <oj-rating-gauge>

Oracle® JavaScript Extension Toolkit (JET)
8.0.0
F18189-01

Signature:

class ojRatingGauge

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Slots

Attributes

Methods

Type Definitions

JET Custom Elements

JET components are implemented as custom HTML elements. In addition to the component attributes documented in this page, JET components also support standard HTML global attributes like id and aria-label.

The JET data binding syntax can be used to define both component and global attributes through the use of dynamically evaluated expressions. All attributes (component and global) support attribute-level binding by prefixing the attribute name with ":" (e.g. :id="[...]"). When using attribute-level binding, all expression values are treated as strings. Additionally, component attributes support property-level binding by using the attribute name directly with no ":" prefix. When using property-level binding, the expressions should evaluate to the types documented by the corresponding attributes. Property-level binding is strongly recommended over attribute-level binding for component attributes.

A detailed description of working with custom HTML elements can be found in: JET Custom Element Usage.



Version:
  • 8.0.0
Since:
  • 0.7.0
Module:
  • ojgauge

Module usage

See JET Module Loading for an overview of module usage within JET.

Typescript Import Format
//To typecheck the element APIs, import as below.
import {ojRatingGauge} from "ojs/ojgauge";

//For the transpiled javascript to load the element's module, import as below
import "ojs/ojgauge";

JET In Typescript

A detailed description of working with JET elements and classes in your typescript project can be found at: JET Typescript Usage.


JET Rating Gauge

Rating gauges are typically used to display or accept user feedback on a product or service.


<oj-rating-gauge
  value='4' >
</oj-rating-gauge>

Accessibility

The application is responsible for populating the shortDesc value in the component properties object with meaningful descriptors when the component does not provide a default descriptor. Since component terminology for keyboard and touch shortcuts can conflict with those of the application, it is the application's responsibility to provide these shortcuts, possibly via a help popup.

Touch End User Information

Gesture Action
Press & Hold Display tooltip.
Drag Value change when readonly is false.

Keyboard End User Information

Key Action
Enter Submit the current value of the gauge.
Tab Move focus to next element and submit the current value of the gauge.
Shift + Tab Move focus to previous element.
UpArrow Increase the gauge's transient value. Value is set after using Enter or Tab to submit.
DownArrow Decrease the gauge's transient value. Value is set after using Enter or Tab to submit.
LeftArrow Decrease the gauge's transient value in left-to-right locales. Increase the gauge's transient value in right-to-left locales. Value is set after using Enter or Tab to submit.
RightArrow Increase the gauge's transient value in left-to-right locales. Decrease the gauge's transient value in right-to-left locales. Value is set after using Enter or Tab to submit.

Performance

Tracking Resize

By default, the element will track resizes and render at the new size. This functionality adds a small overhead to the initial render for simple elements like gauges or spark charts, which become noticable when using large numbers of these simple elements. To disable resize tracking, set trackResize to off. The application can manually request a re-render at any time by calling the refresh function.

Reading direction

As with any JET component, in the unusual case that the directionality (LTR or RTL) changes post-init, the component must be refresh()ed.

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 components that allow child content support slots. Please see the slots section of the JET component overview doc for more information on allowed slot content and slot types.

contextMenu

The contextMenu slot is set on the oj-menu within 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 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.

tooltipTemplate

The tooltipTemplate slot is used to specify custom tooltip content. This slot takes precedence over the tooltip.renderer property if specified.

When the template is executed, the component's binding context is extended with the following properties:

  • $current - an object that contains information for the gauge. (See oj.ojRatingGauge.TooltipContext or the table below for a list of properties available on $current)
Properties of $current:
Name Type Description
color string The indicator color of the gauge.
componentElement Element The rating gauge HTML element.
label string The computed metric label.
parentElement Element The tooltip element. The function can directly modify or append content to this element.

Attributes

changed :boolean

Whether there has been a value entered by the user.
Default Value:
  • false
Supports writeback:
  • true
Names
Item Name
Property changed
Property change event changedChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-changed-changed

changed-state :Object

The changed shape for the gauge. Displayed after the user has set a value, or when the changed attribute of the data object is set to true.
Names
Item Name
Property changedState
Property change event changedStateChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-changed-state-changed

(nullable) changed-state.border-color :string

The border color for changed state. Does not apply if a custom image is specified.
Default Value:
  • ""
Names
Item Name
Property changedState.borderColor

(nullable) changed-state.color :string

The color for changed state. Does not apply if a custom image is specified. The default value comes from the CSS and varies based on theme.
Names
Item Name
Property changedState.color

(nullable) changed-state.shape :('circle'|'diamond'|'human'|'square'|'star'|'triangle'|string)

The shape to be used. Can take the name of a built-in shape or the SVG path commands for a custom shape. Does not apply if a custom image is specified.
Default Value:
  • "star"
Names
Item Name
Property changedState.shape

(nullable) changed-state.source :string

The URI of the custom image. If specified, it takes precedence over shape. For SVG images, the width and height must be defined on the SVG element as pixels.
Default Value:
  • ""
Names
Item Name
Property changedState.source

(nullable) changed-state.svg-class-name :string

The CSS style class to apply to the changed state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • ""
Names
Item Name
Property changedState.svgClassName

changed-state.svg-style :CSSStyleDeclaration

The inline style to apply to the changed state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • {}
Names
Item Name
Property changedState.svgStyle

hover-state :Object

The shape that displays on hover.
Names
Item Name
Property hoverState
Property change event hoverStateChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-hover-state-changed

(nullable) hover-state.border-color :string

The border color for hover state. Does not apply if a custom image is specified.
Default Value:
  • ""
Names
Item Name
Property hoverState.borderColor

(nullable) hover-state.color :string

The color for hover state. Does not apply if a custom image is specified. The default value comes from the CSS and varies based on theme.
Names
Item Name
Property hoverState.color

(nullable) hover-state.shape :('circle'|'diamond'|'human'|'square'|'star'|'triangle'|string)

The shape to be used. Can take the name of a built-in shape or the SVG path commands for a custom shape. Does not apply if a custom image is specified.
Default Value:
  • "star"
Names
Item Name
Property hoverState.shape

(nullable) hover-state.source :string

The URI of the custom image. If specified, it takes precedence over shape. For SVG images, the width and height must be defined on the SVG element as pixels.
Default Value:
  • ""
Names
Item Name
Property hoverState.source

(nullable) hover-state.svg-class-name :string

The CSS style class to apply to the hover state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • ""
Names
Item Name
Property hoverState.svgClassName

hover-state.svg-style :CSSStyleDeclaration

The inline style to apply to the hover state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • {}
Names
Item Name
Property hoverState.svgStyle

max :number

Integer value specifying the maximum value of the gauge, which determines the number of shapes or images that are displayed.
Default Value:
  • 5
Names
Item Name
Property max
Property change event maxChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-max-changed

min :number

The minimum value that can be set on the gauge by the end user. Does not affect the value set on the gauge by API.
Default Value:
  • 0
Names
Item Name
Property min
Property change event minChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-min-changed

orientation :"vertical"|"horizontal"

Defines the type of rating gauge to be rendered.
Supported Values:
Value
"horizontal"
"vertical"
Default Value:
  • "horizontal"
Names
Item Name
Property orientation
Property change event orientationChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-orientation-changed

preserve-aspect-ratio :"none"|"meet"

Specifies whether the images provided should show up at their defined aspect ratios. With 'none', the space is allocated evenly, and shapes could be stretched. With 'meet', The aspect ratio of the shape or image is taken into account when space is allocated. When aspect ratios conflict, the aspect ratio of the selectedState will be used.
Supported Values:
Value
"meet"
"none"
Default Value:
  • "meet"
Names
Item Name
Property preserveAspectRatio
Property change event preserveAspectRatioChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-preserve-aspect-ratio-changed

readonly :boolean

Defines whether the value of the gauge can be changed by the end user.
Default Value:
  • false
Names
Item Name
Property readonly
Property change event readonlyChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-readonly-changed

selected-state :Object

The selected shape for the gauge.
Names
Item Name
Property selectedState
Property change event selectedStateChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-selected-state-changed

(nullable) selected-state.border-color :string

The border color for selected state. Does not apply if a custom image is specified.
Default Value:
  • ""
Names
Item Name
Property selectedState.borderColor

(nullable) selected-state.color :string

The color for selected state. Does not apply if a custom image is specified. The default value comes from the CSS and varies based on theme.
Names
Item Name
Property selectedState.color

(nullable) selected-state.shape :('circle'|'diamond'|'human'|'square'|'star'|'triangle'|string)

The shape to be used. Can take the name of a built-in shape or the SVG path commands for a custom shape. Does not apply if a custom image is specified.
Default Value:
  • "star"
Names
Item Name
Property selectedState.shape

(nullable) selected-state.source :string

The URI of the custom image. If specified, it takes precedence over shape. For SVG images, the width and height must be defined on the SVG element as pixels.
Default Value:
  • ""
Names
Item Name
Property selectedState.source

(nullable) selected-state.svg-class-name :string

The CSS style class to apply to the selected state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • ""
Names
Item Name
Property selectedState.svgClassName

selected-state.svg-style :CSSStyleDeclaration

The inline style to apply to the selected state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • {}
Names
Item Name
Property selectedState.svgStyle

step :0.5|1

Specifies the increment by which values can be specified by the end user.
Supported Values:
Value Argument
0.5 <optional>
1 <optional>
Default Value:
  • 1
Names
Item Name
Property step
Property change event stepChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-step-changed

thresholds :Array.<oj.ojRatingGauge.Threshold>

An array of objects with the following properties defining the thresholds for the gauge.
Default Value:
  • []
Names
Item Name
Property thresholds
Property change event thresholdsChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-thresholds-changed

tooltip :Object

An object containing an optional callback function for tooltip customization.
Names
Item Name
Property tooltip
Property change event tooltipChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-tooltip-changed

tooltip.renderer :((context: ojRatingGauge.TooltipContext) => ({insert: Element|string}|{preventDefault: boolean}))

A function that returns a custom tooltip. The function takes a tooltip context argument, provided by the gauge, and should return an object that contains only one of the two properties:
  • insert: HTMLElement | string - An HTML element, which will be appended to the tooltip, or a tooltip string.
  • preventDefault: true - Indicates that the tooltip should not be displayed. It is not necessary to return {preventDefault:false} to display tooltip, since this is a default behavior.
Default Value:
  • null
Names
Item Name
Property tooltip.renderer

track-resize :"on"|"off"

Defines whether the element will automatically render in response to changes in size. If set to off, then the application is responsible for calling refresh to render the element at the new size.
Supported Values:
Value
"off"
"on"
Default Value:
  • "on"
Names
Item Name
Property trackResize
Property change event trackResizeChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-track-resize-changed

(readonly) transient-value :number|null

The transientValue is the read-only property for retrieving the transient value from the rating gauge. It is triggered when hovering over the rating gauge.

This is a read-only property so page authors cannot set or change it directly.

Supports writeback:
  • true
Since:
  • 4.2.0
Names
Item Name
Property transientValue
Property change event transientValueChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-transient-value-changed

translations :object|null

A collection of translated resources from the translation bundle, or null if 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 translations
Property change event translationsChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-translations-changed

(nullable) translations.component-name :string

Used to describe the data visualization type for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Gauge"
Names
Item Name
Property translations.componentName

(nullable) translations.label-and-value :string

Used to display a label and its value.

See the translations attribute for usage examples.

Default Value:
  • "{0}: {1}"
Names
Item Name
Property translations.labelAndValue

(nullable) translations.label-clear-selection :string

Text shown for clearing multiple selection on touch devices.

See the translations attribute for usage examples.

Default Value:
  • "Clear Selection"
Names
Item Name
Property translations.labelClearSelection

(nullable) translations.label-count-with-total :string

Used to display a count out of a total.

See the translations attribute for usage examples.

Default Value:
  • "{0} of {1}"
Names
Item Name
Property translations.labelCountWithTotal

(nullable) translations.label-data-visualization :string

Label for data visualizations used for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Data Visualization"
Names
Item Name
Property translations.labelDataVisualization

(nullable) translations.label-invalid-data :string

Text shown when the component receives invalid data.

See the translations attribute for usage examples.

Default Value:
  • "Invalid data"
Names
Item Name
Property translations.labelInvalidData

(nullable) translations.label-no-data :string

Text shown when the component receives no data.

See the translations attribute for usage examples.

Default Value:
  • "No data to display"
Names
Item Name
Property translations.labelNoData

(nullable) translations.state-collapsed :string

Used to describe the collapsed state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Collapsed"
Names
Item Name
Property translations.stateCollapsed

(nullable) translations.state-drillable :string

Used to describe a drillable object for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Drillable"
Names
Item Name
Property translations.stateDrillable

(nullable) translations.state-expanded :string

Used to describe the expanded state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Expanded"
Names
Item Name
Property translations.stateExpanded

(nullable) translations.state-hidden :string

Used to describe the hidden state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Hidden"
Names
Item Name
Property translations.stateHidden

(nullable) translations.state-isolated :string

Used to describe the isolated state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Isolated"
Names
Item Name
Property translations.stateIsolated

(nullable) translations.state-maximized :string

Used to describe the maximized state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Maximized"
Names
Item Name
Property translations.stateMaximized

(nullable) translations.state-minimized :string

Used to describe the minimized state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Minimized"
Names
Item Name
Property translations.stateMinimized

(nullable) translations.state-selected :string

Used to describe the selected state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Selected"
Names
Item Name
Property translations.stateSelected

(nullable) translations.state-unselected :string

Used to describe the unselected state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Unselected"
Names
Item Name
Property translations.stateUnselected

(nullable) translations.state-visible :string

Used to describe the visible state for accessibility.

See the translations attribute for usage examples.

Default Value:
  • "Visible"
Names
Item Name
Property translations.stateVisible

unselected-state :Object

The unselected shape for the gauge.
Names
Item Name
Property unselectedState
Property change event unselectedStateChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-unselected-state-changed

(nullable) unselected-state.border-color :string

The border color for unselected state. Does not apply if a custom image is specified.
Default Value:
  • ""
Names
Item Name
Property unselectedState.borderColor

(nullable) unselected-state.color :string

The color for unselected state. Does not apply if a custom image is specified. The default value comes from the CSS and varies based on theme.
Names
Item Name
Property unselectedState.color

(nullable) unselected-state.shape :('circle'|'diamond'|'human'|'square'|'star'|'triangle'|string)

The shape to be used. Can take the name of a built-in shape or the SVG path commands for a custom shape. Does not apply if a custom image is specified.
Default Value:
  • "star"
Names
Item Name
Property unselectedState.shape

(nullable) unselected-state.source :string

The URI of the custom image. If specified, it takes precedence over shape. For SVG images, the width and height must be defined on the SVG element as pixels.
Default Value:
  • ""
Names
Item Name
Property unselectedState.source

(nullable) unselected-state.svg-class-name :string

The CSS style class to apply to the unselected state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • ""
Names
Item Name
Property unselectedState.svgClassName

unselected-state.svg-style :CSSStyleDeclaration

The inline style to apply to the unselected state. The style class and inline style will override any other styling specified through the properties. Does not apply if custom image is specified.
Default Value:
  • {}
Names
Item Name
Property unselectedState.svgStyle

value :number|null

The value set on the gauge.
Supports writeback:
  • true
Names
Item Name
Property value
Property change event valueChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-value-changed

visual-effects :"none"|"auto"

Defines whether visual effects such as overlays are applied to the gauge.
Supported Values:
Value
"auto"
"none"
Default Value:
  • "auto"
Names
Item Name
Property visualEffects
Property change event visualEffectsChanged
Property change listener attribute (must be of type function, see Events and Listeners for additional information.) on-visual-effects-changed

Methods

getProperty(property) : {any}

Retrieves the value of a property or a subproperty. The return type will be the same as the type of the property as specified in this API document. If the method is invoked with an incorrect property/subproperty name, it returns undefined.
Parameters:
Name Type Description
property string 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:

let subpropValue = myComponent.getProperty('complexProperty.subProperty1.subProperty2');

refresh() : {void}

Refreshes the component.
Returns:
Type
void

setProperties(properties) : {void}

Performs a batch set of properties. The type of value for each property being set must match the type of the property as specified in this API document.
Parameters:
Name Type Description
properties Object 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 subproperty (of a complex property) and notifies the component of the change, triggering a [property]Changed event. The value should be of the same type as the type of the attribute mentioned in this API document.
Parameters:
Name Type Description
property string The property name to set. Supports dot notation for subproperty access.
value any 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");

Type Definitions

Threshold

Properties:
Name Type Argument Description
borderColor string <optional>
 The border color of the threshold.
color string <optional>
 The color of the threshold.
max number <optional>
 The upper bound of the threshold. This value is ignored for the final threshold, which uses the maximum value of the gauge.
shortDesc string <optional>
 Specific description for the threshold and overwrites the shortDesc specified on gauge. This is used for accessibility and also for customizing the tooltip text.

TooltipContext

Properties:
Name Type Description
color string The indicator color of the gauge.
componentElement Element The rating gauge HTML element.
label string The computed metric label.
parentElement Element The tooltip element. The function can directly modify or append content to this element.