infojune/resources/sass/materialize/js/materialbox.js

454 lines
12 KiB
JavaScript

(function($, anim) {
'use strict';
let _defaults = {
inDuration: 275,
outDuration: 200,
onOpenStart: null,
onOpenEnd: null,
onCloseStart: null,
onCloseEnd: null
};
/**
* @class
*
*/
class Materialbox extends Component {
/**
* Construct Materialbox instance
* @constructor
* @param {Element} el
* @param {Object} options
*/
constructor(el, options) {
super(Materialbox, el, options);
this.el.M_Materialbox = this;
/**
* Options for the modal
* @member Materialbox#options
* @prop {Number} [inDuration=275] - Length in ms of enter transition
* @prop {Number} [outDuration=200] - Length in ms of exit transition
* @prop {Function} onOpenStart - Callback function called before materialbox is opened
* @prop {Function} onOpenEnd - Callback function called after materialbox is opened
* @prop {Function} onCloseStart - Callback function called before materialbox is closed
* @prop {Function} onCloseEnd - Callback function called after materialbox is closed
*/
this.options = $.extend({}, Materialbox.defaults, options);
this.overlayActive = false;
this.doneAnimating = true;
this.placeholder = $('<div></div>').addClass('material-placeholder');
this.originalWidth = 0;
this.originalHeight = 0;
this.originInlineStyles = this.$el.attr('style');
this.caption = this.el.getAttribute('data-caption') || '';
// Wrap
this.$el.before(this.placeholder);
this.placeholder.append(this.$el);
this._setupEventHandlers();
}
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_Materialbox;
}
/**
* Teardown component
*/
destroy() {
this._removeEventHandlers();
this.el.M_Materialbox = undefined;
// Unwrap image
$(this.placeholder)
.after(this.el)
.remove();
this.$el.removeAttr('style');
}
/**
* Setup Event Handlers
*/
_setupEventHandlers() {
this._handleMaterialboxClickBound = this._handleMaterialboxClick.bind(this);
this.el.addEventListener('click', this._handleMaterialboxClickBound);
}
/**
* Remove Event Handlers
*/
_removeEventHandlers() {
this.el.removeEventListener('click', this._handleMaterialboxClickBound);
}
/**
* Handle Materialbox Click
* @param {Event} e
*/
_handleMaterialboxClick(e) {
// If already modal, return to original
if (this.doneAnimating === false || (this.overlayActive && this.doneAnimating)) {
this.close();
} else {
this.open();
}
}
/**
* Handle Window Scroll
*/
_handleWindowScroll() {
if (this.overlayActive) {
this.close();
}
}
/**
* Handle Window Resize
*/
_handleWindowResize() {
if (this.overlayActive) {
this.close();
}
}
/**
* Handle Window Resize
* @param {Event} e
*/
_handleWindowEscape(e) {
// ESC key
if (e.keyCode === 27 && this.doneAnimating && this.overlayActive) {
this.close();
}
}
/**
* Find ancestors with overflow: hidden; and make visible
*/
_makeAncestorsOverflowVisible() {
this.ancestorsChanged = $();
let ancestor = this.placeholder[0].parentNode;
while (ancestor !== null && !$(ancestor).is(document)) {
let curr = $(ancestor);
if (curr.css('overflow') !== 'visible') {
curr.css('overflow', 'visible');
if (this.ancestorsChanged === undefined) {
this.ancestorsChanged = curr;
} else {
this.ancestorsChanged = this.ancestorsChanged.add(curr);
}
}
ancestor = ancestor.parentNode;
}
}
/**
* Animate image in
*/
_animateImageIn() {
let animOptions = {
targets: this.el,
height: [this.originalHeight, this.newHeight],
width: [this.originalWidth, this.newWidth],
left:
M.getDocumentScrollLeft() +
this.windowWidth / 2 -
this.placeholder.offset().left -
this.newWidth / 2,
top:
M.getDocumentScrollTop() +
this.windowHeight / 2 -
this.placeholder.offset().top -
this.newHeight / 2,
duration: this.options.inDuration,
easing: 'easeOutQuad',
complete: () => {
this.doneAnimating = true;
// onOpenEnd callback
if (typeof this.options.onOpenEnd === 'function') {
this.options.onOpenEnd.call(this, this.el);
}
}
};
// Override max-width or max-height if needed
this.maxWidth = this.$el.css('max-width');
this.maxHeight = this.$el.css('max-height');
if (this.maxWidth !== 'none') {
animOptions.maxWidth = this.newWidth;
}
if (this.maxHeight !== 'none') {
animOptions.maxHeight = this.newHeight;
}
anim(animOptions);
}
/**
* Animate image out
*/
_animateImageOut() {
let animOptions = {
targets: this.el,
width: this.originalWidth,
height: this.originalHeight,
left: 0,
top: 0,
duration: this.options.outDuration,
easing: 'easeOutQuad',
complete: () => {
this.placeholder.css({
height: '',
width: '',
position: '',
top: '',
left: ''
});
// Revert to width or height attribute
if (this.attrWidth) {
this.$el.attr('width', this.attrWidth);
}
if (this.attrHeight) {
this.$el.attr('height', this.attrHeight);
}
this.$el.removeAttr('style');
this.originInlineStyles && this.$el.attr('style', this.originInlineStyles);
// Remove class
this.$el.removeClass('active');
this.doneAnimating = true;
// Remove overflow overrides on ancestors
if (this.ancestorsChanged.length) {
this.ancestorsChanged.css('overflow', '');
}
// onCloseEnd callback
if (typeof this.options.onCloseEnd === 'function') {
this.options.onCloseEnd.call(this, this.el);
}
}
};
anim(animOptions);
}
/**
* Update open and close vars
*/
_updateVars() {
this.windowWidth = window.innerWidth;
this.windowHeight = window.innerHeight;
this.caption = this.el.getAttribute('data-caption') || '';
}
/**
* Open Materialbox
*/
open() {
this._updateVars();
this.originalWidth = this.el.getBoundingClientRect().width;
this.originalHeight = this.el.getBoundingClientRect().height;
// Set states
this.doneAnimating = false;
this.$el.addClass('active');
this.overlayActive = true;
// onOpenStart callback
if (typeof this.options.onOpenStart === 'function') {
this.options.onOpenStart.call(this, this.el);
}
// Set positioning for placeholder
this.placeholder.css({
width: this.placeholder[0].getBoundingClientRect().width + 'px',
height: this.placeholder[0].getBoundingClientRect().height + 'px',
position: 'relative',
top: 0,
left: 0
});
this._makeAncestorsOverflowVisible();
// Set css on origin
this.$el.css({
position: 'absolute',
'z-index': 1000,
'will-change': 'left, top, width, height'
});
// Change from width or height attribute to css
this.attrWidth = this.$el.attr('width');
this.attrHeight = this.$el.attr('height');
if (this.attrWidth) {
this.$el.css('width', this.attrWidth + 'px');
this.$el.removeAttr('width');
}
if (this.attrHeight) {
this.$el.css('width', this.attrHeight + 'px');
this.$el.removeAttr('height');
}
// Add overlay
this.$overlay = $('<div id="materialbox-overlay"></div>')
.css({
opacity: 0
})
.one('click', () => {
if (this.doneAnimating) {
this.close();
}
});
// Put before in origin image to preserve z-index layering.
this.$el.before(this.$overlay);
// Set dimensions if needed
let overlayOffset = this.$overlay[0].getBoundingClientRect();
this.$overlay.css({
width: this.windowWidth + 'px',
height: this.windowHeight + 'px',
left: -1 * overlayOffset.left + 'px',
top: -1 * overlayOffset.top + 'px'
});
anim.remove(this.el);
anim.remove(this.$overlay[0]);
// Animate Overlay
anim({
targets: this.$overlay[0],
opacity: 1,
duration: this.options.inDuration,
easing: 'easeOutQuad'
});
// Add and animate caption if it exists
if (this.caption !== '') {
if (this.$photocaption) {
anim.remove(this.$photoCaption[0]);
}
this.$photoCaption = $('<div class="materialbox-caption"></div>');
this.$photoCaption.text(this.caption);
$('body').append(this.$photoCaption);
this.$photoCaption.css({ display: 'inline' });
anim({
targets: this.$photoCaption[0],
opacity: 1,
duration: this.options.inDuration,
easing: 'easeOutQuad'
});
}
// Resize Image
let ratio = 0;
let widthPercent = this.originalWidth / this.windowWidth;
let heightPercent = this.originalHeight / this.windowHeight;
this.newWidth = 0;
this.newHeight = 0;
if (widthPercent > heightPercent) {
ratio = this.originalHeight / this.originalWidth;
this.newWidth = this.windowWidth * 0.9;
this.newHeight = this.windowWidth * 0.9 * ratio;
} else {
ratio = this.originalWidth / this.originalHeight;
this.newWidth = this.windowHeight * 0.9 * ratio;
this.newHeight = this.windowHeight * 0.9;
}
this._animateImageIn();
// Handle Exit triggers
this._handleWindowScrollBound = this._handleWindowScroll.bind(this);
this._handleWindowResizeBound = this._handleWindowResize.bind(this);
this._handleWindowEscapeBound = this._handleWindowEscape.bind(this);
window.addEventListener('scroll', this._handleWindowScrollBound);
window.addEventListener('resize', this._handleWindowResizeBound);
window.addEventListener('keyup', this._handleWindowEscapeBound);
}
/**
* Close Materialbox
*/
close() {
this._updateVars();
this.doneAnimating = false;
// onCloseStart callback
if (typeof this.options.onCloseStart === 'function') {
this.options.onCloseStart.call(this, this.el);
}
anim.remove(this.el);
anim.remove(this.$overlay[0]);
if (this.caption !== '') {
anim.remove(this.$photoCaption[0]);
}
// disable exit handlers
window.removeEventListener('scroll', this._handleWindowScrollBound);
window.removeEventListener('resize', this._handleWindowResizeBound);
window.removeEventListener('keyup', this._handleWindowEscapeBound);
anim({
targets: this.$overlay[0],
opacity: 0,
duration: this.options.outDuration,
easing: 'easeOutQuad',
complete: () => {
this.overlayActive = false;
this.$overlay.remove();
}
});
this._animateImageOut();
// Remove Caption + reset css settings on image
if (this.caption !== '') {
anim({
targets: this.$photoCaption[0],
opacity: 0,
duration: this.options.outDuration,
easing: 'easeOutQuad',
complete: () => {
this.$photoCaption.remove();
}
});
}
}
}
M.Materialbox = Materialbox;
if (M.jQueryLoaded) {
M.initializeJqueryWrapper(Materialbox, 'materialbox', 'M_Materialbox');
}
})(cash, M.anime);