Element: <oj-time-axis>

Oracle® JavaScript Extension Toolkit (JET)
4.2.0

E91398-01

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Attributes

PREVIEW: This is a preview API. Preview APIs are production quality, but can be changed on a major version without a deprecation path.

Version:
  • 4.2.0
Since:
  • 2.1.0

JET Custom Elements

JET components are implemented as custom HTML elements. A detailed description of working with these elements can be found in: JET Custom Element Usage.

JET Time Axis

Description:

A JET Time Axis is a themable, WAI-ARIA compliant element that displays a range of dates based on specified start and end date and time scale. The Time Axis is intended to be placed in the header of JET DataGrid or Table.


<oj-time-axis
  scale="months"
  start='{{oj.IntlConverterUtils.dateToLocalIso(new Date("Jan 1, 2016"))}}'
  end='{{oj.IntlConverterUtils.dateToLocalIso(new Date("Dec 31, 2016"))}}'
  style="height:38px"
  aria-hidden="true">
</oj-time-axis>

Date and Time Formats

The Time Axis supports a simplified version of the ISO 8601 extended date/time format. The format is as follows: YYYY-MM-DDTHH:mm:ss.sssZ

Symbol Description Values Examples
-, :, .,TCharacters actually in the string. T specifies the start of a time.
YYYYYear2013-03-22
2014-02
MMMonth01 to 12
DDDay of the month01 to 31
HHHours00 to 242013-02-04T15:20Z
2013-02-10T15:20:45.300Z
mmMinutes00 to 59
ssSeconds. The seconds and milliseconds are optional if a time is specified.00 to 59
sssMilliseconds00 to 999
ZThe value in this position can be one of the following. If the value is omitted, character 'Z' should be used to specify UTC time.
  • Z indicates UTC time.
  • +hh:mm indicates that the input time is the specified offset after UTC time.
  • -hh:mm indicates that the input time is the absolute value of the specified offset before UTC time.
2013-02-04T15:20:00-07:00
2013-02-04T15:20:00+05:00
2013-02-04T15:20:00Z

The ISO format support short notations where the string must only include the date and not time, as in the following formats: YYYY, YYYY-MM, YYYY-MM-DD.

The ISO format does not support time zone names. You can use the Z position to specify an offset from UTC time. If you do not include a value in the Z position, UTC time is used. The correct format for UTC should always include character 'Z' if the offset time value is omitted. The date-parsing algorithms are browser-implementation-dependent and, for example, the date string '2013-02-27T17:00:00' will be parsed differently in Chrome vs Firefox vs IE.

You can specify midnight by using 00:00, or by using 24:00 on the previous day. The following two strings specify the same time: 2010-05-25T00:00Z and 2010-05-24T24:00Z.

Accessibility

The application is responsible for supplying a meaningful aria-label to the element.

Touch End User Information

The Time Axis is intended to be used inside of a JET Table or DataGrid. All touch interactions are the same as those of the root elements. See the Table and DataGrid touch doc for more details.

Keyboard End User Information

The Time Axis is intended to be used inside of a JET Table or DataGrid. All keyboard interactions are the same as those of the root elements. See the Table and DataGrid keyboard doc for more details.

Performance

Time Axis Span

It's recommended that applications limit the number of time intervals that are rendered by the Time Axis. For example, a Time Axis spanning one year with a scale of hours will display (365 * 24) 8,760 intervals. Rendering or rerendering this many intervals can cause severe performance degradation. Depending on the amount of space allocated, this many intervals can also cause visual clutteredness.

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 elements can have up to two types of child content:

  • Any child element with a slot attribute 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 slot attribute will be moved to the default slot, also known as a regular child.

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 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

converter :object

The converter (an object literal or instance that duck types oj.Converter) used to format the labels of the time axis. If not specified, the default converter is used. If a single converter is specified, it will be used for all 'scale' values. Otherwise, an object whose keys are 'scale' values that map to the converter instances is expected. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter
Property change event converterChanged
Property change listener attribute (must be of type function) on-converter-changed

converter.days :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'days' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.days

converter.default :object

The default converter (an object literal or instance that duck types oj.Converter) to use for all 'scale' values that do not otherwise have a converter object provided. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.default

converter.hours :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'hours' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.hours

converter.minutes :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'minutes' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.minutes

converter.months :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'months' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.months

converter.quarters :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'quarters' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.quarters

converter.seconds :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'seconds' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.seconds

converter.weeks :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'weeks' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.weeks

converter.years :object

The converter (an object literal or instance that duck types oj.Converter) used for the 'years' scale. If not specified, the default converter will be used for this scale. See oj.DateTimeConverterFactory for details on creating built-in datetime converters.
Default Value:
  • null
Names
Item Name
Property converter.years

end :string

The end time of the time axis. This is required in order for the time axis to properly render. See Date and Time Formats for more details on string formats.
Default Value:
  • null
Names
Item Name
Property end
Property change event endChanged
Property change listener attribute (must be of type function) on-end-changed

scale :string

The time scale used for the time axis. This is required in order for the time axis to properly render.
Supported Values:
Name Type
"days" string
"hours" string
"minutes" string
"months" string
"quarters" string
"seconds" string
"weeks" string
"years" string
Default Value:
  • null
Names
Item Name
Property scale
Property change event scaleChanged
Property change listener attribute (must be of type function) on-scale-changed

start :string

The start time of the time axis. This is required in order for the time axis to properly render. See Date and Time Formats for more details on string formats.
Default Value:
  • null
Names
Item Name
Property start
Property change event startChanged
Property change listener attribute (must be of type function) on-start-changed

track-resize :string

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:
Name Type
"off" string
"on" string
Default Value:
  • "on"
Names
Item Name
Property trackResize
Property change event trackResizeChanged
Property change listener attribute (must be of type function) on-track-resize-changed
Examples

Initialize the data visualization element with the track-resize attribute specified:

<oj-some-dvt track-resize='off'></oj-some-dvt>

Get or set the trackResize property after initialization:

// getter
var value = myComponent.trackResize;

// setter
myComponent.trackResize="off";

translations :Object

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 this component has translations, their documentation immediately follows this doc entry.

Default Value:
  • an object containing all resources relevant to the component, or null if none
Names
Item Name
Property translations
Property change event translationsChanged
Property change listener attribute (must be of type function) on-translations-changed
Examples

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 translations property 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'
};

translations.component-name :string

Used to describe the data visualization type for accessibility.

See the translations attribute for usage examples.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Methods

getProperty(property) → {*}

Retrieves a value for a property or a single subproperty for complex properties.
Parameters:
Name Type Description
property string The property name to get. Supports dot notation for subproperty access.
Returns:
Type
*
Example

Get a single subproperty of a complex property:

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

refresh()

Refreshes the component.

setProperties(properties)

Performs a batch set of properties.
Parameters:
Name Type Description
properties Object An object containing the property and value pairs to set.
Example

Set a batch of properties:

myComponent.setProperties({"prop1": "value1", "prop2.subprop": "value2", "prop3": "value3"});

setProperty(property, value)

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
property string The property name to set. Supports dot notation for subproperty access.
value * The new value to set the property to.
Example

Set a single subproperty of a complex property:

myComponent.setProperty('complexProperty.subProperty1.subProperty2', "someValue");