Files
website/assets/js/util.js
T
2022-07-07 11:54:43 +02:00

463 lines
12 KiB
JavaScript

;(function ($) {
/**
* Generate an indented list of links from a nav. Meant for use with panel().
* @return {jQuery} jQuery object.
*/
$.fn.navList = function () {
var $this = $(this)
;($a = $this.find('a')), (b = [])
$a.each(function () {
var $this = $(this),
indent = Math.max(0, $this.parents('li').length - 1),
href = $this.attr('href'),
target = $this.attr('target')
b.push(
'<a ' +
'class="link depth-' +
indent +
'"' +
(typeof target !== 'undefined' && target != '' ? ' target="' + target + '"' : '') +
(typeof href !== 'undefined' && href != '' ? ' href="' + href + '"' : '') +
'>' +
'<span class="indent-' +
indent +
'"></span>' +
$this.text() +
'</a>'
)
})
return b.join('')
}
/**
* Panel-ify an element.
* @param {object} userConfig User config.
* @return {jQuery} jQuery object.
*/
$.fn.panel = function (userConfig) {
// No elements?
if (this.length == 0) return $this
// Multiple elements?
if (this.length > 1) {
for (var i = 0; i < this.length; i++) $(this[i]).panel(userConfig)
return $this
}
// Vars.
var $this = $(this),
$body = $('body'),
$window = $(window),
id = $this.attr('id'),
config
// Config.
config = $.extend(
{
// Delay.
delay: 0,
// Hide panel on link click.
hideOnClick: false,
// Hide panel on escape keypress.
hideOnEscape: false,
// Hide panel on swipe.
hideOnSwipe: false,
// Reset scroll position on hide.
resetScroll: false,
// Reset forms on hide.
resetForms: false,
// Side of viewport the panel will appear.
side: null,
// Target element for "class".
target: $this,
// Class to toggle.
visibleClass: 'visible',
},
userConfig
)
// Expand "target" if it's not a jQuery object already.
if (typeof config.target != 'jQuery') config.target = $(config.target)
// Panel.
// Methods.
$this._hide = function (event) {
// Already hidden? Bail.
if (!config.target.hasClass(config.visibleClass)) return
// If an event was provided, cancel it.
if (event) {
event.preventDefault()
event.stopPropagation()
}
// Hide.
config.target.removeClass(config.visibleClass)
// Post-hide stuff.
window.setTimeout(function () {
// Reset scroll position.
if (config.resetScroll) $this.scrollTop(0)
// Reset forms.
if (config.resetForms)
$this.find('form').each(function () {
this.reset()
})
}, config.delay)
}
// Vendor fixes.
$this.css('-ms-overflow-style', '-ms-autohiding-scrollbar').css('-webkit-overflow-scrolling', 'touch')
// Hide on click.
if (config.hideOnClick) {
$this.find('a').css('-webkit-tap-highlight-color', 'rgba(0,0,0,0)')
$this.on('click', 'a', function (event) {
var $a = $(this),
href = $a.attr('href'),
target = $a.attr('target')
if (!href || href == '#' || href == '' || href == '#' + id) return
// Cancel original event.
event.preventDefault()
event.stopPropagation()
// Hide panel.
$this._hide()
// Redirect to href.
window.setTimeout(function () {
if (target == '_blank') window.open(href)
else window.location.href = href
}, config.delay + 10)
})
}
// Event: Touch stuff.
$this.on('touchstart', function (event) {
$this.touchPosX = event.originalEvent.touches[0].pageX
$this.touchPosY = event.originalEvent.touches[0].pageY
})
$this.on('touchmove', function (event) {
if ($this.touchPosX === null || $this.touchPosY === null) return
var diffX = $this.touchPosX - event.originalEvent.touches[0].pageX,
diffY = $this.touchPosY - event.originalEvent.touches[0].pageY,
th = $this.outerHeight(),
ts = $this.get(0).scrollHeight - $this.scrollTop()
// Hide on swipe?
if (config.hideOnSwipe) {
var result = false,
boundary = 20,
delta = 50
switch (config.side) {
case 'left':
result = diffY < boundary && diffY > -1 * boundary && diffX > delta
break
case 'right':
result = diffY < boundary && diffY > -1 * boundary && diffX < -1 * delta
break
case 'top':
result = diffX < boundary && diffX > -1 * boundary && diffY > delta
break
case 'bottom':
result = diffX < boundary && diffX > -1 * boundary && diffY < -1 * delta
break
default:
break
}
if (result) {
$this.touchPosX = null
$this.touchPosY = null
$this._hide()
return false
}
}
// Prevent vertical scrolling past the top or bottom.
if (($this.scrollTop() < 0 && diffY < 0) || (ts > th - 2 && ts < th + 2 && diffY > 0)) {
event.preventDefault()
event.stopPropagation()
}
})
// Event: Prevent certain events inside the panel from bubbling.
$this.on('click touchend touchstart touchmove', function (event) {
event.stopPropagation()
})
// Event: Hide panel if a child anchor tag pointing to its ID is clicked.
$this.on('click', 'a[href="#' + id + '"]', function (event) {
event.preventDefault()
event.stopPropagation()
config.target.removeClass(config.visibleClass)
})
// Body.
// Event: Hide panel on body click/tap.
$body.on('click touchend', function (event) {
$this._hide(event)
})
// Event: Toggle.
$body.on('click', 'a[href="#' + id + '"]', function (event) {
event.preventDefault()
event.stopPropagation()
config.target.toggleClass(config.visibleClass)
})
// Window.
// Event: Hide on ESC.
if (config.hideOnEscape)
$window.on('keydown', function (event) {
if (event.keyCode == 27) $this._hide(event)
})
return $this
}
/**
* Apply "placeholder" attribute polyfill to one or more forms.
* @return {jQuery} jQuery object.
*/
$.fn.placeholder = function () {
// Browser natively supports placeholders? Bail.
if (typeof document.createElement('input').placeholder != 'undefined') return $(this)
// No elements?
if (this.length == 0) return $this
// Multiple elements?
if (this.length > 1) {
for (var i = 0; i < this.length; i++) $(this[i]).placeholder()
return $this
}
// Vars.
var $this = $(this)
// Text, TextArea.
$this
.find('input[type=text],textarea')
.each(function () {
var i = $(this)
if (i.val() == '' || i.val() == i.attr('placeholder')) i.addClass('polyfill-placeholder').val(i.attr('placeholder'))
})
.on('blur', function () {
var i = $(this)
if (i.attr('name').match(/-polyfill-field$/)) return
if (i.val() == '') i.addClass('polyfill-placeholder').val(i.attr('placeholder'))
})
.on('focus', function () {
var i = $(this)
if (i.attr('name').match(/-polyfill-field$/)) return
if (i.val() == i.attr('placeholder')) i.removeClass('polyfill-placeholder').val('')
})
// Password.
$this.find('input[type=password]').each(function () {
var i = $(this)
var x = $(
$('<div>')
.append(i.clone())
.remove()
.html()
.replace(/type="password"/i, 'type="text"')
.replace(/type=password/i, 'type=text')
)
if (i.attr('id') != '') x.attr('id', i.attr('id') + '-polyfill-field')
if (i.attr('name') != '') x.attr('name', i.attr('name') + '-polyfill-field')
x.addClass('polyfill-placeholder').val(x.attr('placeholder')).insertAfter(i)
if (i.val() == '') i.hide()
else x.hide()
i.on('blur', function (event) {
event.preventDefault()
var x = i.parent().find('input[name=' + i.attr('name') + '-polyfill-field]')
if (i.val() == '') {
i.hide()
x.show()
}
})
x.on('focus', function (event) {
event.preventDefault()
var i = x.parent().find('input[name=' + x.attr('name').replace('-polyfill-field', '') + ']')
x.hide()
i.show().focus()
}).on('keypress', function (event) {
event.preventDefault()
x.val('')
})
})
// Events.
$this
.on('submit', function () {
$this.find('input[type=text],input[type=password],textarea').each(function (event) {
var i = $(this)
if (i.attr('name').match(/-polyfill-field$/)) i.attr('name', '')
if (i.val() == i.attr('placeholder')) {
i.removeClass('polyfill-placeholder')
i.val('')
}
})
})
.on('reset', function (event) {
event.preventDefault()
$this.find('select').val($('option:first').val())
$this.find('input,textarea').each(function () {
var i = $(this),
x
i.removeClass('polyfill-placeholder')
switch (this.type) {
case 'submit':
case 'reset':
break
case 'password':
i.val(i.attr('defaultValue'))
x = i.parent().find('input[name=' + i.attr('name') + '-polyfill-field]')
if (i.val() == '') {
i.hide()
x.show()
} else {
i.show()
x.hide()
}
break
case 'checkbox':
case 'radio':
i.attr('checked', i.attr('defaultValue'))
break
case 'text':
case 'textarea':
i.val(i.attr('defaultValue'))
if (i.val() == '') {
i.addClass('polyfill-placeholder')
i.val(i.attr('placeholder'))
}
break
default:
i.val(i.attr('defaultValue'))
break
}
})
})
return $this
}
/**
* Moves elements to/from the first positions of their respective parents.
* @param {jQuery} $elements Elements (or selector) to move.
* @param {bool} condition If true, moves elements to the top. Otherwise, moves elements back to their original locations.
*/
$.prioritize = function ($elements, condition) {
var key = '__prioritize'
// Expand $elements if it's not already a jQuery object.
if (typeof $elements != 'jQuery') $elements = $($elements)
// Step through elements.
$elements.each(function () {
var $e = $(this),
$p,
$parent = $e.parent()
// No parent? Bail.
if ($parent.length == 0) return
// Not moved? Move it.
if (!$e.data(key)) {
// Condition is false? Bail.
if (!condition) return
// Get placeholder (which will serve as our point of reference for when this element needs to move back).
$p = $e.prev()
// Couldn't find anything? Means this element's already at the top, so bail.
if ($p.length == 0) return
// Move element to top of parent.
$e.prependTo($parent)
// Mark element as moved.
$e.data(key, $p)
}
// Moved already?
else {
// Condition is true? Bail.
if (condition) return
$p = $e.data(key)
// Move element back to its original location (using our placeholder).
$e.insertAfter($p)
// Unmark element as moved.
$e.removeData(key)
}
})
}
})(jQuery)