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https://github.com/mdbootstrap/mdb-ui-kit.git
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9c04a17b15
The ripples effect provided by some jQuery spaghetti now is a standalone plain javascript script, there was some improvements with this new version, for example now multiple ripples are possible.
111 lines
3.6 KiB
JavaScript
111 lines
3.6 KiB
JavaScript
/* globals CustomEvent */
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var ripples = {
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init : function(withRipple) {
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"use strict";
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// Helper to bind events on dynamically created elements
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var bind = function(event, selector, callback) {
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document.addEventListener(event, function(e) {
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var target = (typeof e.detail !== "number") ? e.detail : e.target;
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if (target.matches(selector)) {
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callback(e, target);
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}
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});
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};
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var rippleStart = function(e, target) {
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// Init variables
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var $rippleWrapper = (target.matches(".ripple-wrapper")) ? target : target.parentNode,
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$el = $rippleWrapper.parentNode,
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$ripple = document.createElement("div"),
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elPos = $el.getBoundingClientRect(),
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mousePos = {x: e.clientX - elPos.left, y: e.clientY - elPos.top},
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scale = "transform:scale(" + Math.round($rippleWrapper.offsetWidth / 5) + ")",
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rippleEnd = new CustomEvent("rippleEnd", {detail: $ripple}),
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refreshElementStyle;
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// Set ripple class
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$ripple.className = "ripple";
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// Move ripple to the mouse position
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$ripple.setAttribute("style", "left:" + mousePos.x + "px; top:" + mousePos.y + "px;");
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// Insert new ripple into ripple wrapper
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$rippleWrapper.appendChild($ripple);
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// Make sure the ripple has the class applied (ugly hack but it works)
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refreshElementStyle = window.getComputedStyle($ripple).opacity;
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// Let other funtions know that this element is animating
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$ripple.dataset.animating = 1;
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// Set scale value to ripple and animate it
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$ripple.className = "ripple ripple-on";
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$ripple.setAttribute("style", $ripple.getAttribute("style") + ["-ms-" + scale,"-moz-" + scale,"-webkit-" + scale,scale].join(";"));
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// This function is called when the animation is finished
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setTimeout(function() {
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// Let know to other functions that this element has finished the animation
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$ripple.dataset.animating = 0;
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document.dispatchEvent(rippleEnd);
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}, 500);
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};
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var rippleOut = function($ripple) {
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// Clear previous animation
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$ripple.className = "ripple ripple-on ripple-out";
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// Let ripple fade out (with CSS)
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setTimeout(function() {
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$ripple.remove();
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}, 1000);
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};
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// Helper, need to know if mouse is up or down
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var mouseDown = false;
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document.body.onmousedown = function() {
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mouseDown = true;
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};
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document.body.onmouseup = function() {
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mouseDown = false;
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};
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// Append ripple wrapper if not exists already
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var rippleInit = function(e, target) {
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if (target.getElementsByClassName("ripple-wrapper").length === 0) {
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target.className += " withripple";
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var $rippleWrapper = document.createElement("div");
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$rippleWrapper.className = "ripple-wrapper";
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target.appendChild($rippleWrapper);
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rippleStart(e, $rippleWrapper);
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}
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};
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// Events handler
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// init RippleJS and start ripple effect on mousedown
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bind("mousedown", withRipple, rippleInit);
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// start ripple effect on mousedown
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bind("mousedown", ".ripple-wrapper, .ripple", rippleStart);
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// if animation ends and user is not holding mouse then destroy the ripple
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bind("rippleEnd", ".ripple-wrapper, .ripple", function(e, $ripple) {
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if (!mouseDown) {
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rippleOut($ripple);
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}
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});
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// Destroy ripple when mouse is not holded anymore if the ripple still exists
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bind("mouseup", ".ripple-wrapper, .ripple", function(e, $ripple) {
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if ($ripple.dataset.animating != 1) {
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rippleOut($ripple);
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}
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});
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}
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};
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