Your IP : 216.73.216.175
(function($, anim) {
'use strict';
let _defaults = {
edge: 'left',
draggable: true,
inDuration: 250,
outDuration: 200,
onOpenStart: null,
onOpenEnd: null,
onCloseStart: null,
onCloseEnd: null,
preventScrolling: true
};
/**
* @class
*/
class Sidenav extends Component {
/**
* Construct Sidenav instance and set up overlay
* @constructor
* @param {Element} el
* @param {Object} options
*/
constructor (el, options) {
super(Sidenav, el, options);
this.el.M_Sidenav = this;
this.id = this.$el.attr('id');
/**
* Options for the Sidenav
* @member Sidenav#options
* @prop {String} [edge='left'] - Side of screen on which Sidenav appears
* @prop {Boolean} [draggable=true] - Allow swipe gestures to open/close Sidenav
* @prop {Number} [inDuration=250] - Length in ms of enter transition
* @prop {Number} [outDuration=200] - Length in ms of exit transition
* @prop {Function} onOpenStart - Function called when sidenav starts entering
* @prop {Function} onOpenEnd - Function called when sidenav finishes entering
* @prop {Function} onCloseStart - Function called when sidenav starts exiting
* @prop {Function} onCloseEnd - Function called when sidenav finishes exiting
*/
this.options = $.extend({}, Sidenav.defaults, options);
/**
* Describes open/close state of Sidenav
* @type {Boolean}
*/
this.isOpen = false;
/**
* Describes if Sidenav is fixed
* @type {Boolean}
*/
this.isFixed = this.el.classList.contains('sidenav-fixed');
/**
* Describes if Sidenav is being draggeed
* @type {Boolean}
*/
this.isDragged = false;
// Window size variables for window resize checks
this.lastWindowWidth = window.innerWidth;
this.lastWindowHeight = window.innerHeight;
this._createOverlay();
this._createDragTarget();
this._setupEventHandlers();
this._setupClasses();
this._setupFixed();
Sidenav._sidenavs.push(this);
}
static get defaults() {
return _defaults;
}
static init(els, options) {
return super.init(this, els, options);
}
/**
* Get Instance
*/
static getInstance(el) {
let domElem = !!el.jquery ? el[0] : el;
return domElem.M_Sidenav;
}
/**
* Teardown component
*/
destroy() {
this._removeEventHandlers();
this._overlay.parentNode.removeChild(this._overlay);
this.dragTarget.parentNode.removeChild(this.dragTarget);
this.el.M_Sidenav = undefined;
let index = Sidenav._sidenavs.indexOf(this);
if (index >= 0) {
Sidenav._sidenavs.splice(index, 1);
}
}
_createOverlay() {
let overlay = document.createElement('div');
this._closeBound = this.close.bind(this);
overlay.classList.add('sidenav-overlay');
overlay.addEventListener('click', this._closeBound);
document.body.appendChild(overlay);
this._overlay = overlay;
}
_setupEventHandlers() {
if (Sidenav._sidenavs.length === 0) {
document.body.addEventListener('click', this._handleTriggerClick);
}
this._handleDragTargetDragBound = this._handleDragTargetDrag.bind(this);
this._handleDragTargetReleaseBound = this._handleDragTargetRelease.bind(this);
this._handleCloseDragBound = this._handleCloseDrag.bind(this);
this._handleCloseReleaseBound = this._handleCloseRelease.bind(this);
this._handleCloseTriggerClickBound = this._handleCloseTriggerClick.bind(this);
this.dragTarget.addEventListener('touchmove', this._handleDragTargetDragBound);
this.dragTarget.addEventListener('touchend', this._handleDragTargetReleaseBound);
this._overlay.addEventListener('touchmove', this._handleCloseDragBound);
this._overlay.addEventListener('touchend', this._handleCloseReleaseBound);
this.el.addEventListener('touchmove', this._handleCloseDragBound);
this.el.addEventListener('touchend', this._handleCloseReleaseBound);
this.el.addEventListener('click', this._handleCloseTriggerClickBound);
// Add resize for side nav fixed
if (this.isFixed) {
this._handleWindowResizeBound = this._handleWindowResize.bind(this);
window.addEventListener('resize', this._handleWindowResizeBound);
}
}
_removeEventHandlers() {
if (Sidenav._sidenavs.length === 1) {
document.body.removeEventListener('click', this._handleTriggerClick);
}
this.dragTarget.removeEventListener('touchmove', this._handleDragTargetDragBound);
this.dragTarget.removeEventListener('touchend', this._handleDragTargetReleaseBound);
this._overlay.removeEventListener('touchmove', this._handleCloseDragBound);
this._overlay.removeEventListener('touchend', this._handleCloseReleaseBound);
this.el.removeEventListener('touchmove', this._handleCloseDragBound);
this.el.removeEventListener('touchend', this._handleCloseReleaseBound);
this.el.removeEventListener('click', this._handleCloseTriggerClickBound);
// Remove resize for side nav fixed
if (this.isFixed) {
window.removeEventListener('resize', this._handleWindowResizeBound);
}
}
/**
* Handle Trigger Click
* @param {Event} e
*/
_handleTriggerClick(e) {
let $trigger = $(e.target).closest('.sidenav-trigger');
if (e.target && $trigger.length) {
let sidenavId = M.getIdFromTrigger($trigger[0]);
let sidenavInstance = document.getElementById(sidenavId).M_Sidenav;
if (sidenavInstance) {
sidenavInstance.open($trigger);
}
e.preventDefault();
}
}
/**
* Set variables needed at the beggining of drag
* and stop any current transition.
* @param {Event} e
*/
_startDrag(e) {
let clientX = e.targetTouches[0].clientX;
this.isDragged = true;
this._startingXpos = clientX;
this._xPos = this._startingXpos;
this._time = Date.now();
this._width = this.el.getBoundingClientRect().width;
this._overlay.style.display = 'block';
this._initialScrollTop = this.isOpen ? this.el.scrollTop : M.getDocumentScrollTop();
this._verticallyScrolling = false;
anim.remove(this.el);
anim.remove(this._overlay);
}
/**
* Set variables needed at each drag move update tick
* @param {Event} e
*/
_dragMoveUpdate(e) {
let clientX = e.targetTouches[0].clientX;
let currentScrollTop = this.isOpen ? this.el.scrollTop : M.getDocumentScrollTop();
this.deltaX = Math.abs(this._xPos - clientX);
this._xPos = clientX;
this.velocityX = this.deltaX / (Date.now() - this._time);
this._time = Date.now();
if (this._initialScrollTop !== currentScrollTop) {
this._verticallyScrolling = true;
}
}
/**
* Handles Dragging of Sidenav
* @param {Event} e
*/
_handleDragTargetDrag(e) {
// Check if draggable
if (!this.options.draggable || this._isCurrentlyFixed() || this._verticallyScrolling) {
return;
}
// If not being dragged, set initial drag start variables
if (!this.isDragged) {
this._startDrag(e);
}
// Run touchmove updates
this._dragMoveUpdate(e);
// Calculate raw deltaX
let totalDeltaX = this._xPos - this._startingXpos;
// dragDirection is the attempted user drag direction
let dragDirection = totalDeltaX > 0 ? 'right' : 'left';
// Don't allow totalDeltaX to exceed Sidenav width or be dragged in the opposite direction
totalDeltaX = Math.min(this._width, Math.abs(totalDeltaX));
if (this.options.edge === dragDirection) {
totalDeltaX = 0;
}
/**
* transformX is the drag displacement
* transformPrefix is the initial transform placement
* Invert values if Sidenav is right edge
*/
let transformX = totalDeltaX;
let transformPrefix = 'translateX(-100%)';
if (this.options.edge === 'right') {
transformPrefix = 'translateX(100%)';
transformX = -transformX;
}
// Calculate open/close percentage of sidenav, with open = 1 and close = 0
this.percentOpen = Math.min(1, totalDeltaX / this._width);
// Set transform and opacity styles
this.el.style.transform = `${transformPrefix} translateX(${transformX}px)`;
this._overlay.style.opacity = this.percentOpen;
}
/**
* Handle Drag Target Release
*/
_handleDragTargetRelease() {
if (this.isDragged) {
if (this.percentOpen > .5) {
this.open();
} else {
this._animateOut();
}
this.isDragged = false;
this._verticallyScrolling = false;
}
}
/**
* Handle Close Drag
* @param {Event} e
*/
_handleCloseDrag(e) {
if (this.isOpen) {
// Check if draggable
if (!this.options.draggable || this._isCurrentlyFixed() || this._verticallyScrolling) {
return;
}
// If not being dragged, set initial drag start variables
if (!this.isDragged) {
this._startDrag(e);
}
// Run touchmove updates
this._dragMoveUpdate(e);
// Calculate raw deltaX
let totalDeltaX = this._xPos - this._startingXpos;
// dragDirection is the attempted user drag direction
let dragDirection = totalDeltaX > 0 ? 'right' : 'left';
// Don't allow totalDeltaX to exceed Sidenav width or be dragged in the opposite direction
totalDeltaX = Math.min(this._width, Math.abs(totalDeltaX));
if (this.options.edge !== dragDirection) {
totalDeltaX = 0;
}
let transformX = -totalDeltaX;
if (this.options.edge === 'right') {
transformX = -transformX;
}
// Calculate open/close percentage of sidenav, with open = 1 and close = 0
this.percentOpen = Math.min(1, 1 - totalDeltaX / this._width);
// Set transform and opacity styles
this.el.style.transform = `translateX(${transformX}px)`;
this._overlay.style.opacity = this.percentOpen;
}
}
/**
* Handle Close Release
*/
_handleCloseRelease() {
if (this.isOpen && this.isDragged) {
if (this.percentOpen > .5) {
this._animateIn();
} else {
this.close();
}
this.isDragged = false;
this._verticallyScrolling = false;
}
}
/**
* Handles closing of Sidenav when element with class .sidenav-close
*/
_handleCloseTriggerClick(e) {
let $closeTrigger = $(e.target).closest('.sidenav-close');
if ($closeTrigger.length && !this._isCurrentlyFixed()) {
this.close();
}
}
/**
* Handle Window Resize
*/
_handleWindowResize() {
// Only handle horizontal resizes
if (this.lastWindowWidth !== window.innerWidth) {
if (window.innerWidth > 992) {
this.open();
}
else {
this.close();
}
}
this.lastWindowWidth = window.innerWidth;
this.lastWindowHeight = window.innerHeight;
}
_setupClasses() {
if (this.options.edge === 'right') {
this.el.classList.add('right-aligned');
this.dragTarget.classList.add('right-aligned');
}
}
_removeClasses() {
this.el.classList.remove('right-aligned');
this.dragTarget.classList.remove('right-aligned');
}
_setupFixed() {
if (this._isCurrentlyFixed()) {
this.open();
}
}
_isCurrentlyFixed() {
return this.isFixed && window.innerWidth > 992;
}
_createDragTarget() {
let dragTarget = document.createElement('div');
dragTarget.classList.add('drag-target');
document.body.appendChild(dragTarget);
this.dragTarget = dragTarget;
}
_preventBodyScrolling() {
let body = document.body;
body.style.overflow = 'hidden';
}
_enableBodyScrolling() {
let body = document.body;
body.style.overflow = '';
}
open() {
if (this.isOpen === true) {
return;
}
this.isOpen = true;
// Run onOpenStart callback
if (typeof(this.options.onOpenStart) === 'function') {
this.options.onOpenStart.call(this, this.el);
}
// Handle fixed Sidenav
if (this._isCurrentlyFixed()) {
anim.remove(this.el);
anim({
targets: this.el,
translateX: 0,
duration: 0,
easing: 'easeOutQuad'
});
this._enableBodyScrolling();
this._overlay.style.display = 'none';
// Handle non-fixed Sidenav
} else {
if (this.options.preventScrolling) {
this._preventBodyScrolling();
}
if (!this.isDragged || this.percentOpen != 1) {
this._animateIn();
}
}
}
close() {
if (this.isOpen === false) {
return;
}
this.isOpen = false;
// Run onCloseStart callback
if (typeof(this.options.onCloseStart) === 'function') {
this.options.onCloseStart.call(this, this.el);
}
// Handle fixed Sidenav
if (this._isCurrentlyFixed()) {
let transformX = this.options.edge === 'left' ? '-105%' : '105%';
this.el.style.transform = `translateX(${transformX})`;
// Handle non-fixed Sidenav
} else {
this._enableBodyScrolling();
if (!this.isDragged || this.percentOpen != 0) {
this._animateOut();
} else {
this._overlay.style.display = 'none';
}
}
}
_animateIn() {
this._animateSidenavIn();
this._animateOverlayIn();
}
_animateSidenavIn() {
let slideOutPercent = this.options.edge === 'left' ? -1 : 1;
if (this.isDragged) {
slideOutPercent = this.options.edge === 'left' ? slideOutPercent + this.percentOpen : slideOutPercent - this.percentOpen;
}
anim.remove(this.el);
anim({
targets: this.el,
translateX: [`${slideOutPercent * 100}%`, 0],
duration: this.options.inDuration,
easing: 'easeOutQuad',
complete: () => {
// Run onOpenEnd callback
if (typeof(this.options.onOpenEnd) === 'function') {
this.options.onOpenEnd.call(this, this.el);
}
}
});
}
_animateOverlayIn() {
let start = 0;
if (this.isDragged) {
start = this.percentOpen;
} else {
$(this._overlay).css({
display: 'block'
});
}
anim.remove(this._overlay);
anim({
targets: this._overlay,
opacity: [start, 1],
duration: this.options.inDuration,
easing: 'easeOutQuad'
});
}
_animateOut() {
this._animateSidenavOut();
this._animateOverlayOut();
}
_animateSidenavOut() {
let endPercent = this.options.edge === 'left' ? -1 : 1;
let slideOutPercent = 0;
if (this.isDragged) {
slideOutPercent = this.options.edge === 'left' ? endPercent + this.percentOpen : endPercent - this.percentOpen;
}
anim.remove(this.el);
anim({
targets: this.el,
translateX: [`${slideOutPercent * 100}%`, `${endPercent * 105}%`],
duration: this.options.outDuration,
easing: 'easeOutQuad',
complete: () => {
// Run onOpenEnd callback
if (typeof(this.options.onCloseEnd) === 'function') {
this.options.onCloseEnd.call(this, this.el);
}
}
});
}
_animateOverlayOut() {
anim.remove(this._overlay);
anim({
targets: this._overlay,
opacity: 0,
duration: this.options.outDuration,
easing: 'easeOutQuad',
complete: () => {
$(this._overlay).css('display', 'none');
}
});
}
}
/**
* @static
* @memberof Sidenav
* @type {Array.<Sidenav>}
*/
Sidenav._sidenavs = [];
window.M.Sidenav = Sidenav;
if (M.jQueryLoaded) {
M.initializeJqueryWrapper(Sidenav, 'sidenav', 'M_Sidenav');
}
})(cash, M.anime);