diff options
Diffstat (limited to 'js/src/button.js')
-rw-r--r-- | js/src/button.js | 84 |
1 files changed, 39 insertions, 45 deletions
diff --git a/js/src/button.js b/js/src/button.js index 76ea9e3377..322cb1066c 100644 --- a/js/src/button.js +++ b/js/src/button.js @@ -20,28 +20,22 @@ const EVENT_KEY = `.${DATA_KEY}` const DATA_API_KEY = '.data-api' const JQUERY_NO_CONFLICT = $.fn[NAME] -const ClassName = { - ACTIVE : 'active', - BUTTON : 'btn', - FOCUS : 'focus' -} - -const Selector = { - DATA_TOGGLE_CARROT : '[data-toggle^="button"]', - DATA_TOGGLES : '[data-toggle="buttons"]', - DATA_TOGGLE : '[data-toggle="button"]', - DATA_TOGGLES_BUTTONS : '[data-toggle="buttons"] .btn', - INPUT : 'input:not([type="hidden"])', - ACTIVE : '.active', - BUTTON : '.btn' -} - -const Event = { - CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`, - FOCUS_BLUR_DATA_API : `focus${EVENT_KEY}${DATA_API_KEY} ` + - `blur${EVENT_KEY}${DATA_API_KEY}`, - LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}` -} +const CLASS_NAME_ACTIVE = 'active' +const CLASS_NAME_BUTTON = 'btn' +const CLASS_NAME_FOCUS = 'focus' + +const SELECTOR_DATA_TOGGLE_CARROT = '[data-toggle^="button"]' +const SELECTOR_DATA_TOGGLES = '[data-toggle="buttons"]' +const SELECTOR_DATA_TOGGLE = '[data-toggle="button"]' +const SELECTOR_DATA_TOGGLES_BUTTONS = '[data-toggle="buttons"] .btn' +const SELECTOR_INPUT = 'input:not([type="hidden"])' +const SELECTOR_ACTIVE = '.active' +const SELECTOR_BUTTON = '.btn' + +const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}` +const EVENT_FOCUS_BLUR_DATA_API = `focus${EVENT_KEY}${DATA_API_KEY} ` + + `blur${EVENT_KEY}${DATA_API_KEY}` +const EVENT_LOAD_DATA_API = `load${EVENT_KEY}${DATA_API_KEY}` /** * ------------------------------------------------------------------------ @@ -66,22 +60,22 @@ class Button { let triggerChangeEvent = true let addAriaPressed = true const rootElement = $(this._element).closest( - Selector.DATA_TOGGLES + SELECTOR_DATA_TOGGLES )[0] if (rootElement) { - const input = this._element.querySelector(Selector.INPUT) + const input = this._element.querySelector(SELECTOR_INPUT) if (input) { if (input.type === 'radio') { if (input.checked && - this._element.classList.contains(ClassName.ACTIVE)) { + this._element.classList.contains(CLASS_NAME_ACTIVE)) { triggerChangeEvent = false } else { - const activeElement = rootElement.querySelector(Selector.ACTIVE) + const activeElement = rootElement.querySelector(SELECTOR_ACTIVE) if (activeElement) { - $(activeElement).removeClass(ClassName.ACTIVE) + $(activeElement).removeClass(CLASS_NAME_ACTIVE) } } } @@ -89,7 +83,7 @@ class Button { if (triggerChangeEvent) { // if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input if (input.type === 'checkbox' || input.type === 'radio') { - input.checked = !this._element.classList.contains(ClassName.ACTIVE) + input.checked = !this._element.classList.contains(CLASS_NAME_ACTIVE) } $(input).trigger('change') } @@ -102,11 +96,11 @@ class Button { if (!(this._element.hasAttribute('disabled') || this._element.classList.contains('disabled'))) { if (addAriaPressed) { this._element.setAttribute('aria-pressed', - !this._element.classList.contains(ClassName.ACTIVE)) + !this._element.classList.contains(CLASS_NAME_ACTIVE)) } if (triggerChangeEvent) { - $(this._element).toggleClass(ClassName.ACTIVE) + $(this._element).toggleClass(CLASS_NAME_ACTIVE) } } } @@ -141,18 +135,18 @@ class Button { */ $(document) - .on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => { + .on(EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, (event) => { let button = event.target const initialButton = button - if (!$(button).hasClass(ClassName.BUTTON)) { - button = $(button).closest(Selector.BUTTON)[0] + if (!$(button).hasClass(CLASS_NAME_BUTTON)) { + button = $(button).closest(SELECTOR_BUTTON)[0] } if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) { event.preventDefault() // work around Firefox bug #1540995 } else { - const inputBtn = button.querySelector(Selector.INPUT) + const inputBtn = button.querySelector(SELECTOR_INPUT) if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) { event.preventDefault() // work around Firefox bug #1540995 @@ -165,34 +159,34 @@ $(document) Button._jQueryInterface.call($(button), 'toggle') } }) - .on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => { - const button = $(event.target).closest(Selector.BUTTON)[0] - $(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type)) + .on(EVENT_FOCUS_BLUR_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, (event) => { + const button = $(event.target).closest(SELECTOR_BUTTON)[0] + $(button).toggleClass(CLASS_NAME_FOCUS, /^focus(in)?$/.test(event.type)) }) -$(window).on(Event.LOAD_DATA_API, () => { +$(window).on(EVENT_LOAD_DATA_API, () => { // ensure correct active class is set to match the controls' actual values/states // find all checkboxes/readio buttons inside data-toggle groups - let buttons = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLES_BUTTONS)) + let buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLES_BUTTONS)) for (let i = 0, len = buttons.length; i < len; i++) { const button = buttons[i] - const input = button.querySelector(Selector.INPUT) + const input = button.querySelector(SELECTOR_INPUT) if (input.checked || input.hasAttribute('checked')) { - button.classList.add(ClassName.ACTIVE) + button.classList.add(CLASS_NAME_ACTIVE) } else { - button.classList.remove(ClassName.ACTIVE) + button.classList.remove(CLASS_NAME_ACTIVE) } } // find all button toggles - buttons = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE)) + buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE)) for (let i = 0, len = buttons.length; i < len; i++) { const button = buttons[i] if (button.getAttribute('aria-pressed') === 'true') { - button.classList.add(ClassName.ACTIVE) + button.classList.add(CLASS_NAME_ACTIVE) } else { - button.classList.remove(ClassName.ACTIVE) + button.classList.remove(CLASS_NAME_ACTIVE) } } }) |