Provide a simple attribute toggling plugings/make-simple-attribute-toggler

6 files changed, 307 insertions, 2 deletions

diff --git a/js/index.esm.js b/js/index.esm.js
index 0c03cb2ecb..0470ec260b 100644
--- a/js/index.esm.js
+++ b/js/index.esm.js
@@ -16,4 +16,5 @@ export { default as Popover } from './src/popover'
 export { default as ScrollSpy } from './src/scrollspy'
 export { default as Tab } from './src/tab'
 export { default as Toast } from './src/toast'
+export { default as Toggler } from './src/toggler'
 export { default as Tooltip } from './src/tooltip'
diff --git a/js/index.umd.js b/js/index.umd.js
index d4a5ee338d..c03a7e1f40 100644
--- a/js/index.umd.js
+++ b/js/index.umd.js
@@ -16,6 +16,7 @@ import Popover from './src/popover'
 import ScrollSpy from './src/scrollspy'
 import Tab from './src/tab'
 import Toast from './src/toast'
+import Toggler from './src/toggler'
 import Tooltip from './src/tooltip'
 
 export default {
@@ -30,5 +31,6 @@ export default {
   ScrollSpy,
   Tab,
   Toast,
+  Toggler,
   Tooltip
 }
diff --git a/js/src/toggler.js b/js/src/toggler.js
new file mode 100644
index 0000000000..d778bfaa6c
--- /dev/null
+++ b/js/src/toggler.js
@@ -0,0 +1,104 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v5.1.3): toggler.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import { defineJQueryPlugin } from './util/index'
+import EventHandler from './dom/event-handler'
+import BaseComponent from './base-component'
+import { eventActionOnPlugin } from './util/component-functions'
+
+/**
+ * Constants
+ */
+
+const NAME = 'toggler'
+const DATA_KEY = 'bs.toggle'
+const EVENT_KEY = `.${DATA_KEY}`
+
+const EVENT_TOGGLE = `toggle${EVENT_KEY}`
+const EVENT_TOGGLED = `toggled${EVENT_KEY}`
+const EVENT_CLICK = 'click'
+
+const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="toggler"]'
+
+const DefaultType = {
+  attribute: 'string',
+  value: '(string|number|boolean)'
+}
+
+const Default = {
+  attribute: 'class',
+  value: null
+}
+
+/**
+ * Class definition
+ */
+
+class Toggler extends BaseComponent {
+  // Getters
+  static get Default() {
+    return Default
+  }
+
+  static get DefaultType() {
+    return DefaultType
+  }
+
+  static get NAME() {
+    return NAME
+  }
+
+  _configAfterMerge(config) {
+    return config
+  }
+
+  // Private
+  toggle() {
+    const toggleEvent = EventHandler.trigger(this._element, EVENT_TOGGLE)
+
+    if (toggleEvent.defaultPrevented) {
+      return
+    }
+
+    this._execute()
+
+    EventHandler.trigger(this._element, EVENT_TOGGLED)
+  }
+
+  _execute() {
+    const { attribute, value } = this._config
+
+    if (attribute === 'id') {
+      return // You have to be kidding
+    }
+
+    if (attribute === 'class') {
+      this._element.classList.toggle(value)
+      return
+    }
+
+    if (this._element.getAttribute(attribute) === value) {
+      this._element.removeAttribute(attribute)
+      return
+    }
+
+    this._element.setAttribute(attribute, value)
+  }
+}
+
+/**
+ * Data API implementation
+ */
+
+eventActionOnPlugin(Toggler, EVENT_CLICK, SELECTOR_DATA_TOGGLE, 'toggle')
+/**
+ * jQuery
+ */
+
+defineJQueryPlugin(Toggler)
+
+export default Toggler
diff --git a/js/src/util/component-functions.js b/js/src/util/component-functions.js
index f1f0701c55..4966387879 100644
--- a/js/src/util/component-functions.js
+++ b/js/src/util/component-functions.js
@@ -6,7 +6,8 @@
  */
 
 import EventHandler from '../dom/event-handler'
-import { getElementFromSelector, isDisabled } from './index'
+import { getElementFromSelector, getSelectorFromElement, isDisabled } from './index'
+import SelectorEngine from '../dom/selector-engine'
 
 const enableDismissTrigger = (component, method = 'hide') => {
   const clickEvent = `click.dismiss${component.EVENT_KEY}`
@@ -29,6 +30,34 @@ const enableDismissTrigger = (component, method = 'hide') => {
   })
 }
 
+const eventActionOnPlugin = (Plugin, onEvent, stringSelector, method, callback = null) => {
+  eventAction(`${onEvent}.${Plugin.NAME}`, stringSelector, data => {
+    const instances = data.targets.filter(Boolean).map(element => Plugin.getOrCreateInstance(element))
+    if (typeof callback === 'function') {
+      callback({ ...data, instances })
+    }
+
+    for (const instance of instances) {
+      instance[method]()
+    }
+  })
+}
+
+const eventAction = (onEvent, stringSelector, callback) => {
+  const selector = `${stringSelector}:not(.disabled):not(:disabled)`
+  EventHandler.on(document, onEvent, selector, function (event) {
+    if (['A', 'AREA'].includes(this.tagName)) {
+      event.preventDefault()
+    }
+
+    const selector = getSelectorFromElement(this)
+    const targets = selector ? SelectorEngine.find(selector) : [this]
+
+    callback({ targets, event })
+  })
+}
+
 export {
-  enableDismissTrigger
+  enableDismissTrigger,
+  eventActionOnPlugin
 }
diff --git a/site/content/docs/5.1/components/toggler.md b/site/content/docs/5.1/components/toggler.md
new file mode 100644
index 0000000000..80dd768eba
--- /dev/null
+++ b/site/content/docs/5.1/components/toggler.md
@@ -0,0 +1,168 @@
+---
+layout: docs
+title: Attribute Toggler
+description: Toggle attributes or classes, using simple html markup
+group: components
+toc: true
+---
+
+## How it works
+
+Attribute Toggler is a simple component, that preferable can be used to avoid writing small JavaScript snippets handle attributes toggling, during `click` events.
+Manipulation id done on the same element or on a targeted element
+
+**Heads up!** Toggler may handle all attributes, except `id's`
+
+
+## Examples
+
+### Toggle class
+
+Below are some examples of class manipulation
+
+{{< example >}}
+<div class="card" data-bs-toggle="toggler" data-bs-value="bg-warning" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `bg-color`</div>
+</div>
+
+<div class="card mt-2" data-bs-toggle="toggler" data-bs-value="text-danger" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `text-color`</div>
+</div>
+{{< /example >}}
+
+
+### Toggle class of another element
+
+Using `data-bs-toggle`, combined with `data-bs-target`, can manipulate another element's attribute
+
+{{< example >}}
+<button class="btn btn-outline-primary" data-bs-toggle="toggler" data-bs-target="#togglerExample1">Click me</button>
+
+<div id="togglerExample1" class="card mt-2" data-bs-value="bg-info" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `bg-color`</div>
+</div>
+{{< /example >}}
+
+### Toggle class of multiple elements
+
+Using `data-bs-toggle`, combined with `data-bs-target`, can manipulate another element's attribute
+
+{{< example >}}
+<button class="btn btn-outline-primary" data-bs-toggle="toggler" data-bs-target=".togglerExampleClass1">Click me</button>
+
+<div class="card mt-2 togglerExampleClass1" data-bs-value="bg-info" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `bg-color`</div>
+</div>
+
+<div class="card mt-2 togglerExampleClass1" data-bs-value="bg-warning" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `bg-color`</div>
+</div>
+
+<div class="card mt-2 togglerExampleClass1" data-bs-value="bg-info" data-bs-attribute="class">
+  <div class="card-body">Click this card, to change `bg-color`</div>
+</div>
+
+{{< /example >}}
+
+
+### Toggle attributes
+
+Below are some examples of attributes manipulation
+
+{{< example >}}
+<div class="card" data-bs-toggle="toggler" data-bs-value="true" data-bs-attribute="hidden">
+  <div class="card-body">Click this card, to change `hidden` attribute</div>
+</div>
+{{< /example >}}
+
+### Toggle attributes of another element
+
+Using `data-bs-toggle`, combined with `data-bs-target`, can manipulate another element's attribute
+
+{{< example >}}
+<button class="btn btn-outline-primary" data-bs-toggle="toggler" data-bs-target="#togglerExample2">Click to toggle `disabled` attribute on fieldset</button>
+
+<fieldset class="mt-3" id="togglerExample2" data-bs-value="disabled" data-bs-attribute="disabled">
+  <div class="mb-3">
+    <label for="disabledTextInput" class="form-label">Input</label>
+    <input type="text" id="disabledTextInput" class="form-control" placeholder="Disabled input">
+  </div>
+  <div class="mb-3">
+    <label for="disabledSelect" class="form-label">Disabled select menu</label>
+    <select id="disabledSelect" class="form-select">
+      <option>Select</option>
+    </select>
+  </div>
+  <button type="submit" class="btn btn-primary">Submit</button>
+</fieldset>
+
+{{< /example >}}
+
+
+
+### Via data attributes
+
+#### Toggle
+
+Add `data-bs-toggle="toggler"` to the element to automatically.
+The `data-bs-target` is optional, and attribute accepts a CSS selector to apply the toggler functionality to.
+Be sure to add the `data-bs-attribute` and `data-bs-value` attributes  on the toggled element's markup
+
+
+### Via JavaScript
+
+Using this component, programmatically is a bit of redundant, as the initial purpose of it is to avoid use js.
+However, enable manually with:
+
+```js
+var togglerElementList = Array.prototype.slice.call(document.querySelectorAll('[data-bs-toggle="toggler"]'))
+var togglerList = togglerElementList.map(function (togglerEl) {
+  return new bootstrap.Toggler(togglerEl)
+})
+```
+
+### Options
+
+Options can be passed via data attributes or JavaScript. For data attributes, append the option name to `data-bs-`, as in `data-bs-value="foo"`.
+
+{{< bs-table "table" >}}
+| Name | Type | Default | Description |
+| --- | --- | --- | --- |
+| `attribute` | string | `class` | The attribute which will be toggled on each click |
+| `value` | string | null | Allow body scrolling while toggler is open |
+{{< /bs-table >}}
+
+### Methods
+
+You can create a toggler instance using the constructor, for example:
+
+```js
+var myToggler = document.getElementById('myToggler')
+var bsToggler = new bootstrap.Toggler(myToggler)
+```
+
+{{< bs-table "table" >}}
+| Method | Description |
+| --- | --- |
+| `toggle` | Toggles a toggler element chosen attribute |
+| `getInstance` | *Static* method which allows you to get the toggler instance associated with a DOM element |
+| `getOrCreateInstance` | *Static* method which allows you to get the toggler instance associated with a DOM element, or create a new one in case it wasn't initialized |
+{{< /bs-table >}}
+
+### Events
+
+Bootstrap's toggler class exposes a few events for hooking into toggler functionality.
+
+{{< bs-table "table" >}}
+| Event type | Description |
+| --- | --- |
+| `toggle.bs.toggler` | This event fires immediately when the `toggle` instance method is called. |
+| `toggled.bs.toggler` | This event is fired when the instance's element attribute has been changed. |
+{{< /bs-table >}}
+
+```js
+var myToggler = document.getElementById('myToggler')
+myToggler.addEventListener('toggle.bs.toggler', function () {
+  // do something...
+})
+```
diff --git a/site/data/sidebar.yml b/site/data/sidebar.yml
index cdf0b04d8b..3d4c5c1643 100644
--- a/site/data/sidebar.yml
+++ b/site/data/sidebar.yml
@@ -93,6 +93,7 @@
     - title: Scrollspy
     - title: Spinners
     - title: Toasts
+    - title: Toggler
     - title: Tooltips
 
 - title: Helpers