Krajee

Slider

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An advanced slider input for Yii Framework 2 based on seiyria/bootstrap-slider plugin, which is a fork of the bootstrap-slider by Stefan Petre from eyecon.ru. The slider input offers these advanced features
  • vertical or horizontal orientation of slider
  • setup your minimum and maximum values
  • setup your step increments
  • range selector (multiple handles to control the range)
  • three shapes for handles
  • touch capablity and support for touch devices

Additional enhancements added for this widget (by Krajee):

  • allows to configure slider selection and handle colors.
  • preselected styles to color your slider and handles.
  • automatically trigger change of base field on slider stop to enforce Yii ActiveField validation
  • automatically set plugin options based on base field value (parse array input value for range)
  • automatically disable slider based on disabled/readonly options.

Tip

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Slider supports configuration of the bootstrap library version so that you can use this either with any Bootstrap version 3.x and above. For setting up the bootstrap version for your extension, you can configure the Slider::bsVersion property to one of the following.

  • To use with bootstrap 3 library - you can set Slider::bsVersion property to any string starting with 3 (e.g. 3 or 3.3.7 or 3.x)

  • To use with bootstrap 4 library - you can set Slider::bsVersion property to any string starting with 4 (e.g. 4 or 4.6.0 or 4.x)

  • To use with bootstrap 5 library - you can set Slider::bsVersion property to any string starting with 5 (e.g. 5 or 5.1.0 or 5.x)

The following sections describe the pre-requisites for enabling Bootstrap library specific version support in your application and other related controls/overrides.

Global Bootstrap Version


Generally, you may also want to set a default version globally for all Krajee Extensions (instead of setting it for each widget or extension separately). In order to do this, you can setup the bsVersion property within Yii 2 application params (i.e. Yii::$app->params['bsVersion']). To set this up, add this section of code to your application params configuration file (e.g. config/params.php):

'params' => [
    'bsVersion' => '5.x', // this will set globally `bsVersion` to Bootstrap 5.x for all Krajee Extensions
    // other settings
    // 'adminEmail' => 'admin@example.com'
]

If Slider::bsVersion property is set, in addition to Yii::$app->params['bsVersion'], the extension level setting (Slider::bsVersion property) will override the Yii::$app->params['bsVersion']. If Slider::bsVersion property is not set, and Yii::$app->params['bsVersion'] is also not set, Slider::bsVersion property will default to 3.x (i.e. Bootstrap 3.x version will be assumed as default).

Yii2 Bootstrap Dependency


You need to install one of yiisoft/yii2-bootstrap or yiisoft/yii2-bootstrap4 or yiisoft/yii2-bootstrap5 extensions manually in your application to enable Bootstrap 3.x or 4.x or 5.x functionality respectively. This dependency has not been pre-built into the composer configuration for Krajee extensions, to allow better control to the developers in configuring their bootstrap library version. If bsVersion is set to 5.x and yiisoft/yii2-bootstrap5 is not installed, then an exception message will be thrown mentioning you to install the yiisoft/yii2-bootstrap5 extension. If bsVersion is set to 4.x and yiisoft/yii2-bootstrap4 is not installed, then an exception message will be thrown mentioning you to install the yiisoft/yii2-bootstrap4 extension. Similarly, if bsVersion is set to 3.x and yiisoft/yii2-bootstrap is not installed, an exception message will be thrown mentioning you to install the yiisoft/yii2-bootstrap extension.

To install yiisoft/yii2-bootstrap5, add the repo to the require section of your application's composer.json.

"yiisoft/yii2-bootstrap5": "@dev"

To install yiisoft/yii2-bootstrap4, add the repo to the require section of your application's composer.json.

"yiisoft/yii2-bootstrap4": "@dev"

To install yiisoft/yii2-bootstrap, add the repo to the require section of your application's composer.json.

"yiisoft/yii2-bootstrap": "@dev"

Override Bootstrap CSS/JS


The Krajee extension asset bundle(s) by default depend on one of the following asset bundles to load the Bootstrap CSS and JS:

  • yii\bootstrap\BootstrapAsset and/or yii\bootstrap\BootstrapPluginAsset for bootstrap 3.x (bsVersion = 3 setting)

  • yii\bootstrap4\BootstrapAsset and/or yii\bootstrap4\BootstrapPluginAsset for bootstrap 4.x ( bsVersion = 4 setting)

  • yii\bootstrap5\BootstrapAsset and/or yii\bootstrap5\BootstrapPluginAsset for bootstrap 5.x (bsVersion = 5 setting)

This is controlled by the property bsDependencyEnabled within the asset bundle (which defaults to true). One can override this and prevent the default yii2 bootstrap assets (CSS & JS) from loading by doing one or all of the following:

  • Global Override: Set Yii::$app->params['bsDependencyEnabled'] to false in your Yii 2 application config params.php. This setting will be applied for all Krajee Extension Asset Bundles that depend on Bootstrap assets.

    'params' => [
        'bsDependencyEnabled' => false, // this will not load Bootstrap CSS and JS for all Krajee extensions
        // you need to ensure you load the Bootstrap CSS/JS manually in your view layout before Krajee CSS/JS assets
        //
        // other params settings below
        // 'bsVersion' => '5.x',
        // 'adminEmail' => 'admin@example.com'
    ]
    
  • Asset Bundle Specific Override: Set bsDependencyEnabled to false for the specific asset bundle within Yii2 Asset Manager component in your Yii 2 application config file.

    // ...
    'components' => [
        'assetManager' => [
            'bundles' => [
                'kartik\form\ActiveFormAsset' => [
                    'bsDependencyEnabled' => false // do not load bootstrap assets for a specific asset bundle
                ],
            ],
        ],
    ],
    

Note

When setting bsDependencyEnabled to false, you need to ensure that your app code/view layout loads the Bootstrap CSS and JS on your view before the Krajee CSS/JS are loaded to ensure that the Krajee extension JS plugins and CSS styles do not get broken.

Icons for Bootstrap


Bootstrap 5.x / 4.x does not include glyphicons or any other icons framework bundled with the library. Krajee extensions therefore will use Font Awesome 5.x icons instead of glyphicons when working with Bootstrap 5.x / 4.x. You can download Font Awesome 5.x icons from the icons website. Alternatively, you can load the free version of Font Awesome from their CDN.

For Krajee extensions and demos, the Font Awesome Free version is used and loaded as the Icons Display Package on all the Yii2 demo layouts. To include font awesome assets on your page, include the following markup on the HEAD section of your view layout file, when bsVersion is set to 4.x or 5.x.

  • Option 1: Font CSS version of Font Awesome:

    <!-- on your view layout file HEAD section -->
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.3.1/css/all.css">
    
  • Option 2: SVG / JS version of Font Awesome (recommended for cleaner scaling vector icons and features like icon layers):

    <!-- on your view layout file HEAD section -->
    <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js" crossorigin="anonymous"></script>
    

    Alternatively, you can use the FontAwesomeAsset from the kartik-v/yii2-icons package to load the SVG/JS version.

    // on your view layout file
    use kartik\icons\FontAwesomeAsset;
    FontAwesomeAsset::register($this);
    

The yii2-slider extension can be installed automatically or manually using one of these options:

Composer Package Manager Recommended


Installation via Composer is the recommended and most easy option to install Krajee Yii2 extensions. You can install yii2-slider via composer package manager. Either run:

$ php composer.phar require kartik-v/yii2-slider "dev-master"

or add:

"kartik-v/yii2-slider": "dev-master"

to your application's composer.json file.

Manual Install


You may also manually install the extension to your project (in case your composer install does not work). Just download the source ZIP or TAR ball and extract the extension asset files and folders into your project. You may need to install dependencies manually and also set the namespaces to the extensions in your Yii2 extensions configurations manually.

The Slider widget supports all the parameters similar to the \yii\widgets\InputWidget widget. In addition, the widget allows you to configure the following properties:
  • bsVersion: string | int, the bootstrap library version to be used for the extension. Refer the Bootstrap Info section for details and pre-requisites on setting this property.

    • To use with Bootstrap library - you can set this to any string starting with 3 (e.g. 3 or 3.3.7 or 4.x / 3.x)

    • To use with bootstrap 4 - you can set this to any string starting with 4 (e.g. 4 or 4.6.0 or 4.x)

    • To use with bootstrap 5 - you can set this to any string starting with 4 (e.g. 5 or 5.1.0 or 5.x)

  • bsColCssPrefixes: array, the bootstrap grid column css prefixes mapping, the key is the bootstrap versions, and the value is an array containing the sizes and their corresponding grid column css prefixes. The class using this trait, must implement kartik\base\BootstrapInterface. If not set will default to:.

    [
       3 => [
          self::SIZE_X_SMALL => 'col-xs-',
          self::SIZE_SMALL => 'col-sm-',
          self::SIZE_MEDIUM => 'col-md-',
          self::SIZE_LARGE => 'col-lg-',
          self::SIZE_X_LARGE => 'col-lg-',
          self::SIZE_XX_LARGE => 'col-lg-',
       ],
       4 => [
          self::SIZE_X_SMALL => 'col-',
          self::SIZE_SMALL => 'col-sm-',
          self::SIZE_MEDIUM => 'col-md-',
          self::SIZE_LARGE => 'col-lg-',
          self::SIZE_X_LARGE => 'col-xl-',
          self::SIZE_XX_LARGE => 'col-xl-',
       ],
       5 => [
          self::SIZE_X_SMALL => 'col-',
          self::SIZE_SMALL => 'col-sm-',
          self::SIZE_MEDIUM => 'col-md-',
          self::SIZE_LARGE => 'col-lg-',
          self::SIZE_X_LARGE => 'col-xl-',
          self::SIZE_XX_LARGE => 'col-xxl-',
       ],
    ];
    
  • pluginConflict: boolean, whether another conflicting Slider plugin like JUI slider exists on the same page. If set to true, the plugin will use a different namespace to prevent conflict. If you have the full jQuery UI assets loaded on the page you should set typically this to true. Defaults to false.

  • sliderColor: string, the hex color code for the selection part of the slider bar. You can use one of these preconfigured types:

    • Slider::TYPE_GREY

    • Slider::TYPE_PRIMARY

    • Slider::TYPE_SUCCESS

    • Slider::TYPE_DANGER

    • Slider::TYPE_WARNING

    • Slider::TYPE_INFO

  • handleColor: string, the hex color code for the handle that controls the slider bar. You can use one of these preconfigured types:

    • Slider::TYPE_GREY

    • Slider::TYPE_PRIMARY

    • Slider::TYPE_SUCCESS

    • Slider::TYPE_DANGER

    • Slider::TYPE_WARNING

    • Slider::TYPE_INFO

  • options: array the HTML attributes for the input tag.

  • pluginOptions: array the JQuery plugin options for the bootstrap-slider plugin. You can control many options for the plugin. Refer the plugin options documentation for details.

  • pluginEvents: array the bootstrap-slider plugin events. You must define events in event-name => event-function format. Refer the plugin events documentation for details. All events will be stacked in the sequence passed. For example:

    pluginEvents = [
        "slideStart" => "function() { log("slideStart"); }",
        "slide" => "function() { log("slide"); }",
        "slideStop" => "function() { log("slideStop"); }",
        "slideEnabled" => "function() { log("slideEnabled"); }",
        "slideDisabled" => "function() { log("slideDisabled"); }",
    ];
    

Range Select

If you are using a range select, you need to pass the 2 range values concatenated with a , (comma). Alternatively, if you have passed a single numeric value and set pluginOptions['range'] to true, then pluginOptions['max'] will be used as the second value.


Basic horizontal slider with ActiveForm. Check the model validation for values > 5 or < 1. You can also use arrow keys to navigate.



Style your slider selection and handle colors and choose your handle type. Set a preselected value. Set the tooltip to be always displayed.


A disabled slider input with a square handle.


$10 $1,000
A range select. Value must be passed as a delimited list separated by a , (comma). If your value is passed as a single number, and you have set pluginOptions['range'] to true, then max will be used for second value.

    
Change orientation to vertical and create multiple sliders of various colors. Reverse the slider values and ALWAYS show tooltip. Change handle to square. Set precision for incremented/decremented values and step to 0.1.



Setting your own custom tooltips.
use kartik\slider\Slider;

// Basic horizontal slider with ActiveForm. Check the model validation for values 
// > 5 or < 1. You can also use arrow keys to navigate.
echo $form->field($model, 'rating')->widget(Slider::classname(), [
    'pluginOptions'=>[
        'min'=>0,
        'max'=>20,
        'step'=>1
    ]
]);

// Style your slider selection and handle colors and choose your handle type. 
// Set a preselected value. Set the tooltip to be always displayed.
echo Slider::widget([
    'name'=>'rating_1',
    'value'=>7,
    'sliderColor'=>Slider::TYPE_GREY,
    'handleColor'=>Slider::TYPE_DANGER,
    'pluginOptions'=>[
        'handle'=>'triangle',
        'tooltip'=>'always'
    ]
]);

// A disabled slider input with a square handle.
echo Slider::widget([
    'name'=>'rating_2',
    'value'=>3,
    'pluginOptions'=>[
        'handle'=>'square'
    ],
    'options'=>['disabled'=>true]
]);

// A range select. Value must be passed as a delimited list separated by a `,` (comma). 
// If your value is passed as a single number, and you have set `pluginOptions['range']`
// to `true`, then `max` will be used for second value.
echo '<b class="badge">$10</b> ' . Slider::widget([
    'name'=>'rating_3',
    'value'=>'250,650',
    'sliderColor'=>Slider::TYPE_GREY,
    'pluginOptions'=>[
        'min'=>10,
        'max'=>1000,
        'step'=>5,
        'range'=>true
    ],
]) . ' <b class="badge">$1,000</b>';

// Change orientation to vertical and create multiple sliders of various colors. Reverse the slider values. 
// and ALWAYS show tooltip. Change handle to square. Set precision for incremented/decremented values and step to 0.01.
$sep = '<span style="margin-right:50px"> </span>';
echo Slider::widget([
    'name'=>'rating_4',
    'value'=>7.427, // Slider will instantiate showing 7.43 due to specified precision
    'sliderColor'=>Slider::TYPE_PRIMARY,
    'handleColor'=>Slider::TYPE_PRIMARY,
    'pluginOptions'=>[
        'precision'=>2,
        'orientation'=>'vertical',
        'handle'=>'square',
        'step'=>0.01,
        'reversed'=>true,
        'tooltip'=>'always'
    ],
]);
echo $sep;
echo Slider::widget([
    'name'=>'rating_4a',
    'value'=>5.95, 
    'sliderColor'=>Slider::TYPE_SUCCESS,
    'handleColor'=>Slider::TYPE_SUCCESS,
    'pluginOptions'=>[
        'precision'=>2,
        'orientation'=>'vertical',
        'handle'=>'square',
        'step'=>0.01,
        'reversed'=>true,
        'tooltip'=>'always'
    ],
]);
echo $sep;
echo Slider::widget([
    'name'=>'rating_4b',
    'value'=>4.04,
    'sliderColor'=>Slider::TYPE_WARNING,
    'handleColor'=>Slider::TYPE_WARNING,
    'pluginOptions'=>[
        'precision'=>2,
        'orientation'=>'vertical',
        'handle'=>'square',
        'step'=>0.01,
        'reversed'=>true,
        'tooltip'=>'always'
    ],
]);
echo $sep;
echo Slider::widget([
    'name'=>'rating_4c',
    'value'=>2.54,
    'sliderColor'=>Slider::TYPE_DANGER,
    'handleColor'=>Slider::TYPE_DANGER,
    'pluginOptions'=>[
        'precision'=>2,
        'orientation'=>'vertical',
        'handle'=>'square',
        'step'=>0.01,
        'reversed'=>true,
        'tooltip'=>'always'
    ],
]);
echo $sep;
echo Slider::widget([
    'name'=>'rating_4d',
    'value'=>1.02,
    'sliderColor'=>Slider::TYPE_INFO,
    'handleColor'=>Slider::TYPE_INFO,
    'pluginOptions'=>[
        'precision'=>2,
        'orientation'=>'vertical',
        'handle'=>'square',
        'step'=>0.01,
        'reversed'=>true,
        'tooltip'=>'always'
    ],
]);

// Setting your own custom tooltips.
echo Slider::widget([
    'name'=>'rating_5',
    'value'=>3,
    'pluginOptions'=>[
        'min'=>0,
        'max'=>20,
        'step'=>1,
        'tooltip'=>'always',
        'formatter'=>new yii\web\JsExpression("function(val) { 
            if (val < 5) {
                return 'Poor';
            }
            if (val < 10) {
                return 'Fair';
            }
            if (val < 15) {
                return 'Good';
            }
            if (val <= 20) {
                return 'Excellent';
            }
        }")
    ]
]);

yii2-slider is released under the BSD-3-Clause License. See the bundled LICENSE.md for details.

Note

You can now visit the Krajee Webtips Q & A forum for searching OR asking questions OR helping programmers with answers on these extensions and plugins. For asking a question click here. Select the appropriate question category (i.e. Krajee Plugins) and choose this current page plugin in the question related to field.

The comments and discussion section below are intended for generic discussions or feedback for this plugin. Developers may not be able to search or lookup here specific questions or tips on usage for this plugin.

 
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