| 1 |
var Toggles = root['Toggles'] = function(el, opts) { |
| 2 |
var self = this; |
| 3 |
|
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if (typeof opts === 'boolean' && el.data('toggles')) { |
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el.data('toggles').toggle(opts); |
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return; |
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} |
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|
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var dataAttr = [ |
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'on', |
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'drag', |
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'click', |
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'width', |
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'height', |
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'animate', |
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'easing', |
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'type', |
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'checkbox' |
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]; |
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var dataOpts = {}; |
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for (var i = 0; i < dataAttr.length; i++) { |
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var opt = el.data('toggle-' + dataAttr[i]); |
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if (typeof opt !== 'undefined') dataOpts[dataAttr[i]] = opt; |
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} |
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|
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// extend default opts with the users options |
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opts = $.extend({ |
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// can the toggle be dragged |
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'drag': true, |
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// can it be clicked to toggle |
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'click': true, |
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'text': { |
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// text for the ON/OFF position |
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'on': 'ON', |
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'off': 'OFF' |
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}, |
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// is the toggle ON on init |
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'on': false, |
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// animation time (ms) |
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'animate': 250, |
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// animation transition easing function, |
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'easing': 'swing', |
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// the checkbox to toggle (for use in forms) |
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'checkbox': null, |
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// element that can be clicked on to toggle. removes binding from the toggle itself (use nesting) |
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'clicker': null, |
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// width (falls back to 50px) |
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'width': 0, |
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// height (falls back to 20px) |
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'height': 0, |
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// defaults to a compact toggle, other option is 'select' where both options are shown at once |
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'type': 'compact', |
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// the event name to fire when we toggle |
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'event': 'toggle' |
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}, opts || {}, dataOpts); |
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|
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el.data('toggles', self); |
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|
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// set active to the opposite of what we want, so toggle will run properly |
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var active = !opts['on']; |
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|
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var selectType = opts['type'] === 'select'; |
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|
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// make checkbox a jquery element |
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var checkbox = $(opts['checkbox']); |
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|
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var clicker = opts['clicker'] && $(opts['clicker']); |
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|
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var height = opts['height'] || el.height() || 20; |
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var width = opts['width'] || el.width() || 50; |
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|
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el.height(height); |
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el.width(width); |
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|
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var div = function(name) { |
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return $('<div class="toggle-' + name + '">'); |
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}; |
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|
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// wrapper inside toggle |
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var elSlide = div('slide'); |
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// inside slide, this bit moves |
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var elInner = div('inner'); |
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// the on/off divs |
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var elOn = div('on'); |
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var elOff = div('off'); |
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// the grip to drag the toggle |
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var elBlob = div('blob'); |
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|
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var halfHeight = height / 2; |
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var onOffWidth = width - halfHeight; |
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|
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var text = opts['text']; |
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|
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// set up the CSS for the individual elements |
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elOn |
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.css({ |
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height: height, |
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width: onOffWidth, |
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textIndent: selectType ? '' : -height / 3, |
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lineHeight: height + 'px' |
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}) |
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.html(text['on']); |
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|
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elOff |
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.css({ |
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height: height, |
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width: onOffWidth, |
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marginLeft: selectType ? '' : -halfHeight, |
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textIndent: selectType ? '' : height / 3, |
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lineHeight: height + 'px' |
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}) |
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.html(text['off']); |
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|
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elBlob.css({ |
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height: height, |
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width: height, |
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marginLeft: -halfHeight |
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}); |
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|
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elInner.css({ |
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width: width * 2 - height, |
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marginLeft: selectType ? 0 : -width + height |
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}); |
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|
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if (selectType) { |
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elSlide.addClass('toggle-select'); |
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el.css('width', onOffWidth * 2); |
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elBlob.hide(); |
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} |
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|
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// construct the toggle |
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elInner.append(elOn, elBlob, elOff); |
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elSlide.html(elInner); |
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el.html(elSlide); |
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|
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var doToggle = self.toggle = function(state, noAnimate, noEvent) { |
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// check we arent already in the desired state |
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if (active === state) return; |
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|
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active = self['active'] = !active; |
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|
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el.data('toggle-active', active); |
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|
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elOff.toggleClass('active', !active); |
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elOn.toggleClass('active', active); |
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checkbox.prop('checked', active); |
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|
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if (!noEvent) el.trigger(opts['event'], active); |
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|
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if (selectType) return; |
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|
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var margin = active ? 0 : -width + height; |
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|
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// move the toggle! |
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elInner.stop().animate({ |
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'marginLeft': margin |
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}, noAnimate ? 0 : opts['animate'], opts['easing']); |
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}; |
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|
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|
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// evt handler for click events |
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var clickHandler = function(e) { |
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// if the target isn't the blob or dragging is disabled, toggle! |
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if (!el.hasClass('disabled') && (e['target'] !== elBlob[0] || !opts['drag'])) { |
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doToggle(); |
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} |
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}; |
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|
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// if click is enabled and toggle isn't within the clicker element (stops double binding) |
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if (opts['click'] && (!clicker || !clicker.has(el).length)) { |
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el.on('click', clickHandler); |
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} |
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|
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// setup the clicker element |
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if (clicker) { |
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clicker.on('click', clickHandler); |
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} |
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|
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// bind up dragging stuff |
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if (opts['drag'] && !selectType) { |
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// time to begin the dragging parts/blob clicks |
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var diff; |
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var slideLimit = (width - height) / 4; |
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|
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// fired on mouseup and mouseleave events |
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var upLeave = function(e) { |
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el.off('mousemove'); |
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elSlide.off('mouseleave'); |
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elBlob.off('mouseup'); |
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|
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if (!diff && opts['click'] && e.type !== 'mouseleave') { |
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doToggle(); |
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return; |
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} |
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|
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var overBound = active ? diff < -slideLimit : diff > slideLimit; |
| 197 |
if (overBound) { |
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// dragged far enough, toggle |
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doToggle(); |
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} else { |
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// reset to previous state |
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elInner.stop().animate({ |
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marginLeft: active ? 0 : -width + height |
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}, opts['animate'] / 2, opts['easing']); |
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} |
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}; |
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|
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var wh = -width + height; |
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|
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elBlob.on('mousedown', function(e) { |
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|
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if (el.hasClass('disabled')) return; |
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|
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// reset diff |
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diff = 0; |
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|
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elBlob.off('mouseup'); |
| 218 |
elSlide.off('mouseleave'); |
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var cursor = e.pageX; |
| 220 |
|
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el.on('mousemove', elBlob, function(e) { |
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diff = e.pageX - cursor; |
| 223 |
var marginLeft; |
| 224 |
|
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if (active) { |
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marginLeft = diff; |
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|
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// keep it within the limits |
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if (diff > 0) marginLeft = 0; |
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if (diff < wh) marginLeft = wh; |
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} else { |
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marginLeft = diff + wh; |
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|
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if (diff < 0) marginLeft = wh; |
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if (diff > -wh) marginLeft = 0; |
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} |
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|
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elInner.css('margin-left', marginLeft); |
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}); |
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|
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elBlob.on('mouseup', upLeave); |
| 242 |
elSlide.on('mouseleave', upLeave); |
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}); |
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} |
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|
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// toggle the toggle to the correct state with no animation and no event |
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doToggle(opts['on'], true, true); |
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}; |
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|
