aps/Slider¶

A form widget which allows a user to sel a value using the horizontal draggable handle.

Table of contents

Compatibility
Overview
Example
Public Properties
Public Methods
Public Events

Overview ¶

Structure¶

The aps/Slider widget enables you to display an input element for selecting the following:

A numeric value falling within certain limits - interval slider

A widget of the this type contains:
- A horizontal slider
- An input field, the aps/TextBox, that displays the selected value as a number and validates it
- Unit of measure or another parameter specified by the legend (optional property)
The horizontal slider and the input field keep input data synchronous.
A string value from a set of options - optional slider

Find the nested rules for this widget in the recommended Widget Hierarchy.

Error Messages¶

The widget validates if a value is assigned and if the latter complies with the widget limits. In a case of violation, it displays a tooltip with one of the following predefined error messages:

MESSAGE	EXPLANATION
“Fill in the field.”	No value is entered in the input box.
“This field can only contain an integer number. No spaces or other characters allowed.”	The content of the input box is not an integer.
“This field can contain an integer number from __minimumValue__ to __maximumValue__ with step __stepSize__. No spaces or other characters allowed.”	The content of the text box is not an integer and the required step is higher than 1.
“The value is out of range. It should be between __minimumValue__ and __maximumValue__.”	The entered value is below the __minimumValue__ or above the __maximumValue__.
“The value should be between __minimumValue__ and __maximumValue__ with step __stepSize__.”	The entered value is not a multiple of the slider step or it is beyond the limits.

../../../../../_images/slider-tooltip.png

To translate those messages to another language, follow the Internationalization and Localization document. In this case, a PO file you use for translation to a certain language must contain msgid entries with the above predefined strings and paired with them msgstr entries with translated strings.

Example ¶

The following example illustrates various widget properties, such as:

Min to mox interval with a specified step
Included value
A set of options

RUN DEMO

require(["aps/load", "aps/ready!"],
    function(load) {
        "use strict";
        load(
            ["aps/Panel", [
                ["aps/FieldSet", {
                        title: "Simple sliders"
                    },
                    [
                        ["aps/Slider", {
                            gridSize: "md-4",
                            label: "Min - 512, Max - 2048, step - 128",
                            minimum: 512,
                            maximum: 2048,
                            value: 512,
                            step: 128,
                            required: true
                        }],
                        ["aps/Slider", {
                            gridSize: "md-4",
                            label: "Min - 512, Max - 2048, step - 128, incl. - 1024",
                            minimum: 512,
                            maximum: 2048,
                            value: 1024,
                            step: 128,
                            included: 1024,
                            required: true
                        }],
                        ["aps/Slider", {
                            gridSize: "md-4",
                            label: "Slider with options",
                            options: [{
                                value: "value1",
                                label: "Starter"
                            }, {
                                value: "value2",
                                label: "Mainstream"
                            }, {
                                value: "value3",
                                label: "Premium"
                            }],
                            required: true
                        }]
                    ]
                ]
        ]]);
});

Public Properties ¶

PROPERTY	TYPE	DEFAULT	DESCRIPTION
allowCustomValues	boolean	false	If users are allowed to enter values that are not multiple of the slider step.
autoSize	boolean	true	Only for PCP / CCP v1.
description	string	“”	Textual description to be displayed as a small greyed text under the control.
disabled	boolean	false	Disabling of the widget for making changes.
gridSize	string	undefined	This specifies the widget width that is relevant only for widgets inside Container, FieldSet, or Tiles.
hint	string	“”	Help information in a widget.
inputSize	number	5	Size of the TextBox element.
isBusy	boolean	false	If the widget is busy then this property is true.
label	string	“”	Text that is shown as a label if the widget is placed inside a aps/FieldSet.
legend	string	“”	Additional text which, as a rule, provides measurement units.
maximum	number	100	Upper allowed limit.
minimum	number	5	Lower allowed limit.
name	string	“”	Name used when submitting the form; same as the “name” attribute in plain HTML elements.
optionalText	string	(Optional)	Text for optional widgets of the Input category.
outStepMessage	string	The value should be between <strong>minimumValue</strong> and <strong>maximumValue</strong> with step <strong>stepSize</strong>.	Value should be multiple of the slider step.
required	boolean	false	User is required to enter data in the input field.
scrollOnFocus	boolean	false	On focus, the widget must shrink to fit the view.
step	number	1	Slider step value.
value	number	0	Current value.
visible	boolean	true	If this property value is set to true, then the widget is visible.

allowCustomValues boolean¶

If users are allowed to enter values that are not multiple of the slider step. Default value: false.

autoSize boolean¶

Only for PCP / CCP v1. If this property value is set to “true”, then a CSS class is assigned to the widget based on the value of the “size” property: size <= 7 - f-small-size (40px) 7 < size <= 33 - f-middle-size (215px) 33 < size - f-big-size (240px) The default value of this property is true. If you want to use your own CSS class for defining the widget’s size, you should set this property value to “false” and specify your class name in the widget’s “class” property. Default value: true

description string¶

Textual description to be displayed as a small greyed text under the control. Default value: “”.

disabled boolean¶

Disabling of the widget for making changes. The slider disappears, data entry into the text entry field becomes disabled. Default value: false.

gridSize string¶

This specifies the widget width that is relevant only for widgets inside Container, FieldSet, or Tiles. In other cases it will be ignored.

gridSize string contains few options with number values (from 1 to 12) separated by spaces, which specify the grid size of the widget in different layouts:

- md - desktop

- xs - phone

For example, gridSize: “md-4 xs-2”.

All values below 1, e.g. “md-0”, will be replaced with the empty string (“”), values above 12, e.g. “md-14”, will be reduced to 12 (“md-12”).

Default value: undefined.

hint string¶

Help information in a widget. It is shown under the content of the widget. Deprecated in CCP v2. Default value: “”.

inputSize number¶

Size of the TextBox element. It is determined by CSS classes f-small-size, f-middle-size and f-big-size. Default value: 5.

isBusy boolean¶

If the widget is busy then this property is true.

Default value: false.

label string¶

Text that is shown as a label if the widget is placed inside a aps/FieldSet.

Default value: “”.

legend string¶

Additional text which, as a rule, provides measurement units. Default value: “”.

maximum number¶

Upper allowed limit. The entered value cannot be above it. If a user enters a number above this limit, they will get an error message. The default value is 100.

minimum number¶

Lower allowed limit. The entered value cannot be below it. If a user enters a number below this limit, they will get an error message. The default value is 5.

name string¶

Name used when submitting the form; same as the “name” attribute in plain HTML elements. Default value: “”.

optionalText string¶

Text for optional widgets of the Input category. Default value: “(Optional)”.

outStepMessage string¶

Value should be multiple of the slider step. Default value: “The value should be between minimumValue and maximumValue with step stepSize.”

required boolean¶

User is required to enter data in the input field. Default value: false.

scrollOnFocus boolean¶

On focus, the widget must shrink to fit the view. Default value: false.

step number¶

Slider step value. It cannot be used together with the discreteValues property. The step property is recommended instead of discreteValues. If an entered number is not a multiple of the step, an error message will be displayed. The default value is 1.

value number¶

Current value. The default value is 0.

visible boolean¶

If this property value is set to true, then the widget is visible.

Default value: true.

Public Methods ¶

METHOD	RETURN	DESCRIPTION
cancel ()	object	Sets the isBusy property to false
destroy ()	undefined	Destroys this widget
focus ()	aps/slider function	Focusing on focusNode of the current object
get ()	any	Get a property of the Stateful instance
getParents ()	array	Discover and return all parents of the widget
placeAt ()	dijit/_widgetbase function	Place this widget somewhere in the DOM based on standard dojo/dom-construct::place() conventions
reset ()		Resets the widget’s value and state
set ()	object function	Set a property of the Stateful instance
startup ()	undefined	Processing after the DOM fragment is added to the document

cancel¶

Sets the isBusy property to false.

Return: object

destroy¶

Destroys this widget. Will also destroy any resources (including widgets) registered via this.own(). This method will also destroy internal widgets such as those created from a template.

Return: undefined

focus¶

Focusing on focusNode of the current object

Return: aps/slider function

get¶

Get a property of the Stateful instance. Get a named property of the Stateful object. The property may potentially be retrieved via a getter method in subclasses.

In the base class, this just retrieves the object’s property.

Return: any

getParents¶

Discover and return all parents of the widget.

Return: array

placeAt¶

Place this widget somewhere in the DOM based on standard dojo/dom-construct::place() conventions. A convenience function providing a simple shorthand mechanism to put an existing (or newly created) widget somewhere in the DOM, and allow chaining.

Return: dijit/_widgetbase function

reset¶

Resets the widget’s value and state. tags: Public returns: undefined

set¶

Set a property of the Stateful instance. Sets named properties of the stateful object and notifies the watchers of the property. A programmatic setter may be defined in subclasses.

Return: object function

startup¶

Processing after the DOM fragment is added to the document. Called after a widget and its children have been created and added to the page and all related widgets have finished their creation cycle, that is after the postCreate() function is successfully completed for each of the related widgets. Note that startup() may be called while the widget is still hidden.