Файл: assets/js/waves.js
Строк: 364
<?php
;(function(window) {
'use strict';
var Waves = Waves || {};
var $$ = document.querySelectorAll.bind(document);
// Find exact position of element
function isWindow(obj) {
return obj !== null && obj === obj.window;
}
function getWindow(elem) {
return isWindow(elem) ? elem : elem.nodeType === 9 && elem.defaultView;
}
function offset(elem) {
var docElem, win,
box = {top: 0, left: 0},
doc = elem && elem.ownerDocument;
docElem = doc.documentElement;
if (typeof elem.getBoundingClientRect !== typeof undefined) {
box = elem.getBoundingClientRect();
}
win = getWindow(doc);
return {
top: box.top + win.pageYOffset - docElem.clientTop,
left: box.left + win.pageXOffset - docElem.clientLeft
};
}
function convertStyle(obj) {
var style = '';
for (var a in obj) {
if (obj.hasOwnProperty(a)) {
style += (a + ':' + obj[a] + ';');
}
}
return style;
}
var Effect = {
// Effect delay
duration: 750,
show: function(e, element) {
// Disable right click
if (e.button === 2) {
return false;
}
var el = element || this;
// Create ripple
var ripple = document.createElement('div');
ripple.className = 'waves-ripple';
el.appendChild(ripple);
// Get click coordinate and element witdh
var pos = offset(el);
var relativeY = (e.pageY - pos.top);
var relativeX = (e.pageX - pos.left);
var scale = 'scale('+((el.clientWidth / 100) * 10)+')';
// Support for touch devices
if ('touches' in e) {
relativeY = (e.touches[0].pageY - pos.top);
relativeX = (e.touches[0].pageX - pos.left);
}
// Attach data to element
ripple.setAttribute('data-hold', Date.now());
ripple.setAttribute('data-scale', scale);
ripple.setAttribute('data-x', relativeX);
ripple.setAttribute('data-y', relativeY);
// Set ripple position
var rippleStyle = {
'top': relativeY+'px',
'left': relativeX+'px'
};
ripple.className = ripple.className + ' waves-notransition';
ripple.setAttribute('style', convertStyle(rippleStyle));
ripple.className = ripple.className.replace('waves-notransition', '');
// Scale the ripple
rippleStyle['-webkit-transform'] = scale;
rippleStyle['-moz-transform'] = scale;
rippleStyle['-ms-transform'] = scale;
rippleStyle['-o-transform'] = scale;
rippleStyle.transform = scale;
rippleStyle.opacity = '1';
rippleStyle['-webkit-transition-duration'] = Effect.duration + 'ms';
rippleStyle['-moz-transition-duration'] = Effect.duration + 'ms';
rippleStyle['-o-transition-duration'] = Effect.duration + 'ms';
rippleStyle['transition-duration'] = Effect.duration + 'ms';
rippleStyle['-webkit-transition-timing-function'] = 'cubic-bezier(0.250, 0.460, 0.450, 0.940)';
rippleStyle['-moz-transition-timing-function'] = 'cubic-bezier(0.250, 0.460, 0.450, 0.940)';
rippleStyle['-o-transition-timing-function'] = 'cubic-bezier(0.250, 0.460, 0.450, 0.940)';
rippleStyle['transition-timing-function'] = 'cubic-bezier(0.250, 0.460, 0.450, 0.940)';
ripple.setAttribute('style', convertStyle(rippleStyle));
},
hide: function(e) {
TouchHandler.touchup(e);
var el = this;
var width = el.clientWidth * 1.4;
// Get first ripple
var ripple = null;
var ripples = el.getElementsByClassName('waves-ripple');
if (ripples.length > 0) {
ripple = ripples[ripples.length - 1];
} else {
return false;
}
var relativeX = ripple.getAttribute('data-x');
var relativeY = ripple.getAttribute('data-y');
var scale = ripple.getAttribute('data-scale');
// Get delay beetween mousedown and mouse leave
var diff = Date.now() - Number(ripple.getAttribute('data-hold'));
var delay = 350 - diff;
if (delay < 0) {
delay = 0;
}
// Fade out ripple after delay
setTimeout(function() {
var style = {
'top': relativeY+'px',
'left': relativeX+'px',
'opacity': '0',
// Duration
'-webkit-transition-duration': Effect.duration + 'ms',
'-moz-transition-duration': Effect.duration + 'ms',
'-o-transition-duration': Effect.duration + 'ms',
'transition-duration': Effect.duration + 'ms',
'-webkit-transform': scale,
'-moz-transform': scale,
'-ms-transform': scale,
'-o-transform': scale,
'transform': scale,
};
ripple.setAttribute('style', convertStyle(style));
setTimeout(function() {
try {
el.removeChild(ripple);
} catch(e) {
return false;
}
}, Effect.duration);
}, delay);
},
// Little hack to make <input> can perform waves effect
wrapInput: function(elements) {
for (var a = 0; a < elements.length; a++) {
var el = elements[a];
if (el.tagName.toLowerCase() === 'input') {
var parent = el.parentNode;
// If input already have parent just pass through
if (parent.tagName.toLowerCase() === 'i' && parent.className.indexOf('waves-effect') !== -1) {
continue;
}
// Put element class and style to the specified parent
var wrapper = document.createElement('i');
wrapper.className = el.className + ' waves-input-wrapper';
var elementStyle = el.getAttribute('style');
if (!elementStyle) {
elementStyle = '';
}
wrapper.setAttribute('style', elementStyle);
el.className = 'waves-button-input';
el.removeAttribute('style');
// Put element as child
parent.replaceChild(wrapper, el);
wrapper.appendChild(el);
}
}
}
};
/**
* Disable mousedown event for 500ms during and after touch
*/
var TouchHandler = {
/* uses an integer rather than bool so there's no issues with
* needing to clear timeouts if another touch event occurred
* within the 500ms. Cannot mouseup between touchstart and
* touchend, nor in the 500ms after touchend. */
touches: 0,
allowEvent: function(e) {
var allow = true;
if (e.type === 'touchstart') {
TouchHandler.touches += 1; //push
} else if (e.type === 'touchend' || e.type === 'touchcancel') {
setTimeout(function() {
if (TouchHandler.touches > 0) {
TouchHandler.touches -= 1; //pop after 500ms
}
}, 500);
} else if (e.type === 'mousedown' && TouchHandler.touches > 0) {
allow = false;
}
return allow;
},
touchup: function(e) {
TouchHandler.allowEvent(e);
}
};
/**
* Delegated click handler for .waves-effect element.
* returns null when .waves-effect element not in "click tree"
*/
function getWavesEffectElement(e) {
if (TouchHandler.allowEvent(e) === false) {
return null;
}
var element = null;
var target = e.target || e.srcElement;
while (target.parentElement !== null) {
if (!(target instanceof SVGElement) && target.className.indexOf('waves-effect') !== -1) {
element = target;
break;
} else if (target.classList.contains('waves-effect')) {
element = target;
break;
}
target = target.parentElement;
}
return element;
}
/**
* Bubble the click and show effect if .waves-effect elem was found
*/
function showEffect(e) {
var element = getWavesEffectElement(e);
if (element !== null) {
Effect.show(e, element);
if ('ontouchstart' in window) {
element.addEventListener('touchend', Effect.hide, false);
element.addEventListener('touchcancel', Effect.hide, false);
}
element.addEventListener('mouseup', Effect.hide, false);
element.addEventListener('mouseleave', Effect.hide, false);
}
}
Waves.displayEffect = function(options) {
options = options || {};
if ('duration' in options) {
Effect.duration = options.duration;
}
//Wrap input inside <i> tag
Effect.wrapInput($$('.waves-effect'));
if ('ontouchstart' in window) {
document.body.addEventListener('touchstart', showEffect, false);
}
document.body.addEventListener('mousedown', showEffect, false);
};
/**
* Attach Waves to an input element (or any element which doesn't
* bubble mouseup/mousedown events).
* Intended to be used with dynamically loaded forms/inputs, or
* where the user doesn't want a delegated click handler.
*/
Waves.attach = function(element) {
//FUTURE: automatically add waves classes and allow users
// to specify them with an options param? Eg. light/classic/button
if (element.tagName.toLowerCase() === 'input') {
Effect.wrapInput([element]);
element = element.parentElement;
}
if ('ontouchstart' in window) {
element.addEventListener('touchstart', showEffect, false);
}
element.addEventListener('mousedown', showEffect, false);
};
window.Waves = Waves;
document.addEventListener('DOMContentLoaded', function() {
Waves.displayEffect();
}, false);
})(window);
?>