pulled in juxtapose to make modifications. now resizes properly. better
layout for both reviews and gallery
This commit is contained in:
+764
@@ -0,0 +1,764 @@
|
||||
/* juxtapose - v1.2.2 - 2020-09-03
|
||||
* Copyright (c) 2020 Alex Duner and Northwestern University Knight Lab
|
||||
*/
|
||||
/* juxtapose - v1.1.2 - 2015-07-16
|
||||
* Copyright (c) 2015 Alex Duner and Northwestern University Knight Lab
|
||||
*/
|
||||
|
||||
(function(document, window) {
|
||||
|
||||
var juxtapose = {
|
||||
sliders: [],
|
||||
OPTIMIZATION_ACCEPTED: 1,
|
||||
OPTIMIZATION_WAS_CONSTRAINED: 2
|
||||
};
|
||||
|
||||
var flickr_key = "d90fc2d1f4acc584e08b8eaea5bf4d6c";
|
||||
var FLICKR_SIZE_PREFERENCES = ['Large', 'Medium'];
|
||||
|
||||
function Graphic(properties, slider) {
|
||||
var self = this;
|
||||
this.image = new Image();
|
||||
|
||||
this.loaded = false;
|
||||
this.image.onload = function() {
|
||||
self.loaded = true;
|
||||
slider._onLoaded();
|
||||
};
|
||||
|
||||
this.image.src = properties.src;
|
||||
this.image.alt = properties.alt || '';
|
||||
this.label = properties.label || false;
|
||||
this.credit = properties.credit || false;
|
||||
}
|
||||
|
||||
function FlickrGraphic(properties, slider) {
|
||||
var self = this;
|
||||
this.image = new Image();
|
||||
|
||||
this.loaded = false;
|
||||
this.image.onload = function() {
|
||||
self.loaded = true;
|
||||
slider._onLoaded();
|
||||
};
|
||||
|
||||
this.flickrID = this.getFlickrID(properties.src);
|
||||
this.callFlickrAPI(this.flickrID, self);
|
||||
|
||||
this.label = properties.label || false;
|
||||
this.credit = properties.credit || false;
|
||||
}
|
||||
|
||||
FlickrGraphic.prototype = {
|
||||
getFlickrID: function(url) {
|
||||
if (url.match(/flic.kr\/.+/i)) {
|
||||
var encoded = url.split('/').slice(-1)[0];
|
||||
return base58Decode(encoded);
|
||||
}
|
||||
var idx = url.indexOf("flickr.com/photos/");
|
||||
var pos = idx + "flickr.com/photos/".length;
|
||||
var photo_info = url.substr(pos);
|
||||
if (photo_info.indexOf('/') == -1) return null;
|
||||
if (photo_info.indexOf('/') === 0) photo_info = photo_info.substr(1);
|
||||
id = photo_info.split("/")[1];
|
||||
return id;
|
||||
},
|
||||
|
||||
callFlickrAPI: function(id, self) {
|
||||
var url = 'https://api.flickr.com/services/rest/?method=flickr.photos.getSizes' +
|
||||
'&api_key=' + flickr_key +
|
||||
'&photo_id=' + id + '&format=json&nojsoncallback=1';
|
||||
|
||||
var request = new XMLHttpRequest();
|
||||
request.open('GET', url, true);
|
||||
request.onload = function() {
|
||||
if (request.status >= 200 && request.status < 400) {
|
||||
data = JSON.parse(request.responseText);
|
||||
var flickr_url = self.bestFlickrUrl(data.sizes.size);
|
||||
self.setFlickrImage(flickr_url);
|
||||
} else {
|
||||
console.error("There was an error getting the picture from Flickr");
|
||||
}
|
||||
};
|
||||
request.onerror = function() {
|
||||
console.error("There was an error getting the picture from Flickr");
|
||||
};
|
||||
request.send();
|
||||
},
|
||||
|
||||
setFlickrImage: function(src) {
|
||||
this.image.src = src;
|
||||
},
|
||||
|
||||
bestFlickrUrl: function(ary) {
|
||||
var dict = {};
|
||||
for (var i = 0; i < ary.length; i++) {
|
||||
dict[ary[i].label] = ary[i].source;
|
||||
}
|
||||
for (var j = 0; j < FLICKR_SIZE_PREFERENCES.length; j++) {
|
||||
if (FLICKR_SIZE_PREFERENCES[j] in dict) {
|
||||
return dict[FLICKR_SIZE_PREFERENCES[j]];
|
||||
}
|
||||
}
|
||||
return ary[0].source;
|
||||
}
|
||||
};
|
||||
|
||||
function getNaturalDimensions(DOMelement) {
|
||||
if (DOMelement.naturalWidth && DOMelement.naturalHeight) {
|
||||
return { width: DOMelement.naturalWidth, height: DOMelement.naturalHeight };
|
||||
}
|
||||
// https://www.jacklmoore.com/notes/naturalwidth-and-naturalheight-in-ie/
|
||||
var img = new Image();
|
||||
img.src = DOMelement.src;
|
||||
return { width: img.width, height: img.height };
|
||||
}
|
||||
|
||||
function getImageDimensions(img) {
|
||||
var dimensions = {
|
||||
width: getNaturalDimensions(img).width,
|
||||
height: getNaturalDimensions(img).height,
|
||||
aspect: function() { return (this.width / this.height); }
|
||||
};
|
||||
return dimensions;
|
||||
}
|
||||
|
||||
function addClass(element, c) {
|
||||
if (element.classList) {
|
||||
element.classList.add(c);
|
||||
} else {
|
||||
element.className += " " + c;
|
||||
}
|
||||
}
|
||||
|
||||
function removeClass(element, c) {
|
||||
element.className = element.className.replace(/(\S+)\s*/g, function(w, match) {
|
||||
if (match === c) {
|
||||
return '';
|
||||
}
|
||||
return w;
|
||||
}).replace(/^\s+/, '');
|
||||
}
|
||||
|
||||
function setText(element, text) {
|
||||
if (document.body.textContent) {
|
||||
element.textContent = text;
|
||||
} else {
|
||||
element.innerText = text;
|
||||
}
|
||||
}
|
||||
|
||||
function getComputedWidthAndHeight(element) {
|
||||
if (window.getComputedStyle) {
|
||||
// path taken on mac
|
||||
return {
|
||||
width: parseInt(getComputedStyle(element).width, 10),
|
||||
height: parseInt(getComputedStyle(element).height, 10)
|
||||
};
|
||||
} else {
|
||||
w = element.getBoundingClientRect().right - element.getBoundingClientRect().left;
|
||||
h = element.getBoundingClientRect().bottom - element.getBoundingClientRect().top;
|
||||
return {
|
||||
width: parseInt(w, 10) || 0,
|
||||
height: parseInt(h, 10) || 0
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
function viewport() {
|
||||
var e = window,
|
||||
a = 'inner';
|
||||
if (!('innerWidth' in window)) {
|
||||
a = 'client';
|
||||
e = document.documentElement || document.body;
|
||||
}
|
||||
return { width: e[a + 'Width'], height: e[a + 'Height'] }
|
||||
}
|
||||
|
||||
function getPageX(e) {
|
||||
var pageX;
|
||||
if (e.pageX) {
|
||||
pageX = e.pageX;
|
||||
} else if (e.touches) {
|
||||
pageX = e.touches[0].pageX;
|
||||
} else {
|
||||
pageX = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
|
||||
}
|
||||
return pageX;
|
||||
}
|
||||
|
||||
function getPageY(e) {
|
||||
var pageY;
|
||||
if (e.pageY) {
|
||||
pageY = e.pageY;
|
||||
} else if (e.touches) {
|
||||
pageY = e.touches[0].pageY;
|
||||
} else {
|
||||
pageY = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
|
||||
}
|
||||
return pageY;
|
||||
}
|
||||
|
||||
function checkFlickr(url) {
|
||||
if (url.match(/flic.kr\/.+/i)) {
|
||||
return true;
|
||||
}
|
||||
var idx = url.indexOf("flickr.com/photos/");
|
||||
if (idx == -1) {
|
||||
return false;
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
function base58Decode(encoded) {
|
||||
var alphabet = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ',
|
||||
base = alphabet.length;
|
||||
if (typeof encoded !== 'string') {
|
||||
throw '"base58Decode" only accepts strings.';
|
||||
}
|
||||
var decoded = 0;
|
||||
while (encoded) {
|
||||
var alphabetPosition = alphabet.indexOf(encoded[0]);
|
||||
if (alphabetPosition < 0) {
|
||||
throw '"base58Decode" can\'t find "' + encoded[0] + '" in the alphabet: "' + alphabet + '"';
|
||||
}
|
||||
var powerOf = encoded.length - 1;
|
||||
decoded += alphabetPosition * (Math.pow(base, powerOf));
|
||||
encoded = encoded.substring(1);
|
||||
}
|
||||
return decoded.toString();
|
||||
}
|
||||
|
||||
function getLeftPercent(slider, input) {
|
||||
if (typeof(input) === "string" || typeof(input) === "number") {
|
||||
leftPercent = parseInt(input, 10);
|
||||
} else {
|
||||
var sliderRect = slider.getBoundingClientRect();
|
||||
var offset = {
|
||||
top: sliderRect.top + document.body.scrollTop + document.documentElement.scrollTop,
|
||||
left: sliderRect.left + document.body.scrollLeft + document.documentElement.scrollLeft
|
||||
};
|
||||
var width = slider.offsetWidth;
|
||||
var pageX = getPageX(input);
|
||||
var relativeX = pageX - offset.left;
|
||||
leftPercent = (relativeX / width) * 100;
|
||||
}
|
||||
return leftPercent;
|
||||
}
|
||||
|
||||
function getTopPercent(slider, input) {
|
||||
if (typeof(input) === "string" || typeof(input) === "number") {
|
||||
topPercent = parseInt(input, 10);
|
||||
} else {
|
||||
var sliderRect = slider.getBoundingClientRect();
|
||||
var offset = {
|
||||
top: sliderRect.top + document.body.scrollTop + document.documentElement.scrollTop,
|
||||
left: sliderRect.left + document.body.scrollLeft + document.documentElement.scrollLeft
|
||||
};
|
||||
var width = slider.offsetHeight;
|
||||
var pageY = getPageY(input);
|
||||
var relativeY = pageY - offset.top;
|
||||
topPercent = (relativeY / width) * 100;
|
||||
}
|
||||
return topPercent;
|
||||
}
|
||||
|
||||
// values of BOOLEAN_OPTIONS are ignored. just used for 'in' test on keys
|
||||
var BOOLEAN_OPTIONS = { 'animate': true, 'showLabels': true, 'showCredits': true, 'makeResponsive': true };
|
||||
|
||||
function interpret_boolean(x) {
|
||||
if (typeof(x) != 'string') {
|
||||
return Boolean(x);
|
||||
}
|
||||
return !(x === 'false' || x === '');
|
||||
}
|
||||
|
||||
function JXSlider(selector, images, options) {
|
||||
|
||||
this.selector = selector;
|
||||
|
||||
var i;
|
||||
this.options = { // new options must have default values set here.
|
||||
animate: true,
|
||||
showLabels: true,
|
||||
showCredits: true,
|
||||
makeResponsive: true,
|
||||
startingPosition: "50%",
|
||||
mode: 'horizontal',
|
||||
callback: null // pass a callback function if you like
|
||||
};
|
||||
|
||||
for (i in this.options) {
|
||||
if (i in options) {
|
||||
if (i in BOOLEAN_OPTIONS) {
|
||||
this.options[i] = interpret_boolean(options[i]);
|
||||
} else {
|
||||
this.options[i] = options[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (images.length == 2) {
|
||||
|
||||
if (checkFlickr(images[0].src)) {
|
||||
this.imgBefore = new FlickrGraphic(images[0], this);
|
||||
} else {
|
||||
this.imgBefore = new Graphic(images[0], this);
|
||||
}
|
||||
|
||||
if (checkFlickr(images[1].src)) {
|
||||
this.imgAfter = new FlickrGraphic(images[1], this);
|
||||
} else {
|
||||
this.imgAfter = new Graphic(images[1], this);
|
||||
}
|
||||
|
||||
} else {
|
||||
console.warn("The images parameter takes two Image objects.");
|
||||
}
|
||||
|
||||
if (this.imgBefore.credit || this.imgAfter.credit) {
|
||||
this.options.showCredits = true;
|
||||
} else {
|
||||
this.options.showCredits = false;
|
||||
}
|
||||
}
|
||||
|
||||
JXSlider.prototype = {
|
||||
|
||||
updateSlider: function(input, animate) {
|
||||
var leftPercent, rightPercent;
|
||||
|
||||
if (this.options.mode === "vertical") {
|
||||
leftPercent = getTopPercent(this.slider, input);
|
||||
} else {
|
||||
leftPercent = getLeftPercent(this.slider, input);
|
||||
}
|
||||
|
||||
leftPercent = leftPercent.toFixed(2) + "%";
|
||||
leftPercentNum = parseFloat(leftPercent);
|
||||
rightPercent = (100 - leftPercentNum) + "%";
|
||||
|
||||
if (leftPercentNum > 0 && leftPercentNum < 100) {
|
||||
removeClass(this.handle, 'transition');
|
||||
removeClass(this.rightImage, 'transition');
|
||||
removeClass(this.leftImage, 'transition');
|
||||
|
||||
if (this.options.animate && animate) {
|
||||
addClass(this.handle, 'transition');
|
||||
addClass(this.leftImage, 'transition');
|
||||
addClass(this.rightImage, 'transition');
|
||||
}
|
||||
|
||||
if (this.options.mode === "vertical") {
|
||||
this.handle.style.top = leftPercent;
|
||||
this.leftImage.style.height = leftPercent;
|
||||
this.rightImage.style.height = rightPercent;
|
||||
} else {
|
||||
this.handle.style.left = leftPercent;
|
||||
this.leftImage.style.width = leftPercent;
|
||||
this.rightImage.style.width = rightPercent;
|
||||
}
|
||||
this.sliderPosition = leftPercent;
|
||||
}
|
||||
},
|
||||
|
||||
getPosition: function() {
|
||||
return this.sliderPosition;
|
||||
},
|
||||
|
||||
displayLabel: function(element, labelText) {
|
||||
label = document.createElement("div");
|
||||
label.className = 'jx-label';
|
||||
label.setAttribute('tabindex', 0); //put the controller in the natural tab order of the document
|
||||
|
||||
setText(label, labelText);
|
||||
element.appendChild(label);
|
||||
},
|
||||
|
||||
displayCredits: function() {
|
||||
credit = document.createElement("div");
|
||||
credit.className = "jx-credit";
|
||||
|
||||
text = "<em>Photo Credits:</em>";
|
||||
if (this.imgBefore.credit) { text += " <em>Before</em> " + this.imgBefore.credit; }
|
||||
if (this.imgAfter.credit) { text += " <em>After</em> " + this.imgAfter.credit; }
|
||||
|
||||
credit.innerHTML = text;
|
||||
|
||||
this.wrapper.appendChild(credit);
|
||||
},
|
||||
|
||||
setStartingPosition: function(s) {
|
||||
this.options.startingPosition = s;
|
||||
},
|
||||
|
||||
checkImages: function() {
|
||||
if (getImageDimensions(this.imgBefore.image).aspect() ==
|
||||
getImageDimensions(this.imgAfter.image).aspect()) {
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
},
|
||||
|
||||
calculateDims: function(width, height) {
|
||||
var ratio = getImageDimensions(this.imgBefore.image).aspect();
|
||||
if (width) {
|
||||
height = width / ratio;
|
||||
} else if (height) {
|
||||
width = height * ratio;
|
||||
}
|
||||
return {
|
||||
width: width,
|
||||
height: height,
|
||||
ratio: ratio
|
||||
};
|
||||
},
|
||||
|
||||
responsivizeIframe: function(dims) {
|
||||
//Check the slider dimensions against the iframe (window) dimensions
|
||||
if (dims.height < window.innerHeight) {
|
||||
//If the aspect ratio is greater than 1, imgs are landscape, so letterbox top and bottom
|
||||
if (dims.ratio >= 1) {
|
||||
this.wrapper.style.paddingTop = parseInt((window.innerHeight - dims.height) / 2) + "px";
|
||||
}
|
||||
} else if (dims.height > window.innerHeight) {
|
||||
/* If the image is too tall for the window, which happens at 100% width on large screens,
|
||||
* force dimension recalculation based on height instead of width */
|
||||
dims = this.calculateDims(0, window.innerHeight);
|
||||
this.wrapper.style.paddingLeft = parseInt((window.innerWidth - dims.width) / 2) + "px";
|
||||
}
|
||||
if (this.options.showCredits) {
|
||||
// accommodate the credits box within the iframe
|
||||
dims.height -= 13;
|
||||
}
|
||||
return dims;
|
||||
},
|
||||
|
||||
setWrapperDimensions: function() {
|
||||
var wrapperWidth = getComputedWidthAndHeight(this.wrapper).width;
|
||||
var wrapperHeight = getComputedWidthAndHeight(this.wrapper).height;
|
||||
|
||||
var dims = this.calculateDims(wrapperWidth, wrapperHeight);
|
||||
// if window is in iframe, make sure images don't overflow boundaries
|
||||
if (window.location !== window.parent.location && !this.options.makeResponsive) {
|
||||
dims = this.responsivizeIframe(dims);
|
||||
}
|
||||
|
||||
this.wrapper.style.height = parseInt(dims.height) + "px";
|
||||
this.wrapper.style.width = parseInt(dims.width) + "px";
|
||||
},
|
||||
|
||||
optimizeWrapper: function(maxWidth) {
|
||||
var result = juxtapose.OPTIMIZATION_ACCEPTED;
|
||||
if ((this.imgBefore.image.naturalWidth >= maxWidth) && (this.imgAfter.image.naturalWidth >= maxWidth)) {
|
||||
this.wrapper.style.width = maxWidth + "px";
|
||||
result = juxtapose.OPTIMIZATION_WAS_CONSTRAINED;
|
||||
} else if (this.imgAfter.image.naturalWidth < maxWidth) {
|
||||
this.wrapper.style.width = this.imgAfter.image.naturalWidth + "px";
|
||||
} else {
|
||||
this.wrapper.style.width = this.imgBefore.image.naturalWidth + "px";
|
||||
}
|
||||
this.setWrapperDimensions();
|
||||
return result;
|
||||
},
|
||||
|
||||
_onLoaded: function() {
|
||||
|
||||
if (this.imgBefore && this.imgBefore.loaded === true &&
|
||||
this.imgAfter && this.imgAfter.loaded === true) {
|
||||
|
||||
this.wrapper = document.querySelector(this.selector);
|
||||
addClass(this.wrapper, 'juxtapose');
|
||||
|
||||
this.wrapper.style.width = getNaturalDimensions(this.imgBefore.image).width;
|
||||
this.setWrapperDimensions();
|
||||
|
||||
this.slider = document.createElement("div");
|
||||
this.slider.className = 'jx-slider';
|
||||
this.wrapper.appendChild(this.slider);
|
||||
|
||||
if (this.options.mode != "horizontal") {
|
||||
addClass(this.slider, this.options.mode);
|
||||
}
|
||||
|
||||
this.handle = document.createElement("div");
|
||||
this.handle.className = 'jx-handle';
|
||||
|
||||
this.rightImage = document.createElement("div");
|
||||
this.rightImage.className = 'jx-image jx-right';
|
||||
this.rightImage.appendChild(this.imgAfter.image);
|
||||
|
||||
|
||||
this.leftImage = document.createElement("div");
|
||||
this.leftImage.className = 'jx-image jx-left';
|
||||
this.leftImage.appendChild(this.imgBefore.image);
|
||||
|
||||
this.labCredit = document.createElement("a");
|
||||
this.labCredit.setAttribute('href', 'https://juxtapose.knightlab.com');
|
||||
this.labCredit.setAttribute('target', '_blank');
|
||||
this.labCredit.setAttribute('rel', 'noopener');
|
||||
this.labCredit.className = 'jx-knightlab';
|
||||
this.labLogo = document.createElement("div");
|
||||
this.labLogo.className = 'knightlab-logo';
|
||||
this.labCredit.appendChild(this.labLogo);
|
||||
this.projectName = document.createElement("span");
|
||||
this.projectName.className = 'juxtapose-name';
|
||||
setText(this.projectName, 'JuxtaposeJS');
|
||||
this.labCredit.appendChild(this.projectName);
|
||||
|
||||
this.slider.appendChild(this.handle);
|
||||
this.slider.appendChild(this.leftImage);
|
||||
this.slider.appendChild(this.rightImage);
|
||||
this.slider.appendChild(this.labCredit);
|
||||
|
||||
this.leftArrow = document.createElement("div");
|
||||
this.rightArrow = document.createElement("div");
|
||||
this.control = document.createElement("div");
|
||||
this.controller = document.createElement("div");
|
||||
|
||||
this.leftArrow.className = 'jx-arrow jx-left';
|
||||
this.rightArrow.className = 'jx-arrow jx-right';
|
||||
this.control.className = 'jx-control';
|
||||
this.controller.className = 'jx-controller';
|
||||
|
||||
this.controller.setAttribute('tabindex', 0); //put the controller in the natural tab order of the document
|
||||
this.controller.setAttribute('role', 'slider');
|
||||
this.controller.setAttribute('aria-valuenow', 50);
|
||||
this.controller.setAttribute('aria-valuemin', 0);
|
||||
this.controller.setAttribute('aria-valuemax', 100);
|
||||
|
||||
this.handle.appendChild(this.leftArrow);
|
||||
this.handle.appendChild(this.control);
|
||||
this.handle.appendChild(this.rightArrow);
|
||||
this.control.appendChild(this.controller);
|
||||
|
||||
this._init();
|
||||
}
|
||||
},
|
||||
|
||||
_init: function() {
|
||||
|
||||
if (this.checkImages() === false) {
|
||||
console.warn(this, "Check that the two images have the same aspect ratio for the slider to work correctly.");
|
||||
}
|
||||
|
||||
this.updateSlider(this.options.startingPosition, false);
|
||||
|
||||
if (this.options.showLabels === true) {
|
||||
if (this.imgBefore.label) { this.displayLabel(this.leftImage, this.imgBefore.label); }
|
||||
if (this.imgAfter.label) { this.displayLabel(this.rightImage, this.imgAfter.label); }
|
||||
}
|
||||
|
||||
if (this.options.showCredits === true) {
|
||||
this.displayCredits();
|
||||
}
|
||||
|
||||
var self = this;
|
||||
|
||||
// SIMON REMOVED
|
||||
// window.addEventListener("resize", function() {
|
||||
// self.setWrapperDimensions();
|
||||
// });
|
||||
|
||||
|
||||
// Set up Javascript Events
|
||||
// On mousedown, call updateSlider then set animate to false
|
||||
// (if animate is true, adds css transition when updating).
|
||||
|
||||
this.slider.addEventListener("mousedown", function(e) {
|
||||
e = e || window.event;
|
||||
e.preventDefault();
|
||||
self.updateSlider(e, true);
|
||||
animate = true;
|
||||
|
||||
this.addEventListener("mousemove", function(e) {
|
||||
e = e || window.event;
|
||||
e.preventDefault();
|
||||
if (animate) { self.updateSlider(e, false); }
|
||||
});
|
||||
|
||||
this.addEventListener('mouseup', function(e) {
|
||||
e = e || window.event;
|
||||
e.preventDefault();
|
||||
e.stopPropagation();
|
||||
this.removeEventListener('mouseup', arguments.callee);
|
||||
animate = false;
|
||||
});
|
||||
});
|
||||
|
||||
this.slider.addEventListener("touchstart", function(e) {
|
||||
e = e || window.event;
|
||||
// e.preventDefault();
|
||||
// e.stopPropagation();
|
||||
self.updateSlider(e, true);
|
||||
|
||||
this.addEventListener("touchmove", function(e) {
|
||||
e = e || window.event;
|
||||
// e.preventDefault();
|
||||
// e.stopPropagation();
|
||||
self.updateSlider(event, false);
|
||||
});
|
||||
|
||||
});
|
||||
|
||||
/* keyboard accessibility */
|
||||
|
||||
this.handle.addEventListener("keydown", function(e) {
|
||||
e = e || window.event;
|
||||
var key = e.which || e.keyCode;
|
||||
var ariaValue = parseFloat(this.style.left);
|
||||
|
||||
//move jx-controller left
|
||||
if (key == 37) {
|
||||
ariaValue = ariaValue - 1;
|
||||
var leftStart = parseFloat(this.style.left) - 1;
|
||||
self.updateSlider(leftStart, false);
|
||||
self.controller.setAttribute('aria-valuenow', ariaValue);
|
||||
}
|
||||
|
||||
//move jx-controller right
|
||||
if (key == 39) {
|
||||
ariaValue = ariaValue + 1;
|
||||
var rightStart = parseFloat(this.style.left) + 1;
|
||||
self.updateSlider(rightStart, false);
|
||||
self.controller.setAttribute('aria-valuenow', ariaValue);
|
||||
}
|
||||
});
|
||||
|
||||
//toggle right-hand image visibility
|
||||
this.leftImage.addEventListener("keydown", function(event) {
|
||||
var key = event.which || event.keyCode;
|
||||
if ((key == 13) || (key == 32)) {
|
||||
self.updateSlider("90%", true);
|
||||
self.controller.setAttribute('aria-valuenow', 90);
|
||||
}
|
||||
});
|
||||
|
||||
//toggle left-hand image visibility
|
||||
this.rightImage.addEventListener("keydown", function(event) {
|
||||
var key = event.which || event.keyCode;
|
||||
if ((key == 13) || (key == 32)) {
|
||||
self.updateSlider("10%", true);
|
||||
self.controller.setAttribute('aria-valuenow', 10);
|
||||
}
|
||||
});
|
||||
|
||||
juxtapose.sliders.push(this);
|
||||
|
||||
if (this.options.callback && typeof(this.options.callback) == 'function') {
|
||||
this.options.callback(this);
|
||||
}
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
/*
|
||||
Given an element that is configured with the proper data elements, make a slider out of it.
|
||||
Normally this will just be used by scanPage.
|
||||
*/
|
||||
juxtapose.makeSlider = function(element, idx) {
|
||||
if (typeof idx == 'undefined') {
|
||||
idx = juxtapose.sliders.length; // not super threadsafe...
|
||||
}
|
||||
|
||||
var w = element;
|
||||
|
||||
var images = w.querySelectorAll('img');
|
||||
|
||||
var options = {};
|
||||
// don't set empty string into options, that's a false false.
|
||||
if (w.getAttribute('data-animate')) {
|
||||
options.animate = w.getAttribute('data-animate');
|
||||
}
|
||||
if (w.getAttribute('data-showlabels')) {
|
||||
options.showLabels = w.getAttribute('data-showlabels');
|
||||
}
|
||||
if (w.getAttribute('data-showcredits')) {
|
||||
options.showCredits = w.getAttribute('data-showcredits');
|
||||
}
|
||||
if (w.getAttribute('data-startingposition')) {
|
||||
options.startingPosition = w.getAttribute('data-startingposition');
|
||||
}
|
||||
if (w.getAttribute('data-mode')) {
|
||||
options.mode = w.getAttribute('data-mode');
|
||||
}
|
||||
if (w.getAttribute('data-makeresponsive')) {
|
||||
options.mode = w.getAttribute('data-makeresponsive');
|
||||
}
|
||||
|
||||
specificClass = 'juxtapose-' + idx;
|
||||
addClass(element, specificClass);
|
||||
|
||||
selector = '.' + specificClass;
|
||||
|
||||
if (w.innerHTML) {
|
||||
w.innerHTML = '';
|
||||
} else {
|
||||
w.innerText = '';
|
||||
}
|
||||
|
||||
slider = new juxtapose.JXSlider(
|
||||
selector, [{
|
||||
src: images[0].src,
|
||||
label: images[0].getAttribute('data-label'),
|
||||
credit: images[0].getAttribute('data-credit'),
|
||||
alt: images[0].alt
|
||||
},
|
||||
{
|
||||
src: images[1].src,
|
||||
label: images[1].getAttribute('data-label'),
|
||||
credit: images[1].getAttribute('data-credit'),
|
||||
alt: images[1].alt
|
||||
}
|
||||
],
|
||||
options
|
||||
);
|
||||
};
|
||||
|
||||
//Enable HTML Implementation
|
||||
juxtapose.scanPage = function() {
|
||||
var elements = document.querySelectorAll('.juxtapose');
|
||||
for (var i = 0; i < elements.length; i++) {
|
||||
juxtapose.makeSlider(elements[i], i);
|
||||
}
|
||||
};
|
||||
|
||||
juxtapose.JXSlider = JXSlider;
|
||||
window.juxtapose = juxtapose;
|
||||
|
||||
juxtapose.scanPage();
|
||||
|
||||
}(document, window));
|
||||
|
||||
|
||||
// addEventListener polyfill / jonathantneal
|
||||
!window.addEventListener && (function(WindowPrototype, DocumentPrototype, ElementPrototype, addEventListener, removeEventListener, dispatchEvent, registry) {
|
||||
WindowPrototype[addEventListener] = DocumentPrototype[addEventListener] = ElementPrototype[addEventListener] = function(type, listener) {
|
||||
var target = this;
|
||||
|
||||
registry.unshift([target, type, listener, function(event) {
|
||||
event.currentTarget = target;
|
||||
event.preventDefault = function() { event.returnValue = false };
|
||||
event.stopPropagation = function() { event.cancelBubble = true };
|
||||
event.target = event.srcElement || target;
|
||||
|
||||
listener.call(target, event);
|
||||
}]);
|
||||
|
||||
this.attachEvent("on" + type, registry[0][3]);
|
||||
};
|
||||
|
||||
WindowPrototype[removeEventListener] = DocumentPrototype[removeEventListener] = ElementPrototype[removeEventListener] = function(type, listener) {
|
||||
for (var index = 0, register; register = registry[index]; ++index) {
|
||||
if (register[0] == this && register[1] == type && register[2] == listener) {
|
||||
return this.detachEvent("on" + type, registry.splice(index, 1)[0][3]);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
WindowPrototype[dispatchEvent] = DocumentPrototype[dispatchEvent] = ElementPrototype[dispatchEvent] = function(eventObject) {
|
||||
return this.fireEvent("on" + eventObject.type, eventObject);
|
||||
};
|
||||
})(Window.prototype, HTMLDocument.prototype, Element.prototype, "addEventListener", "removeEventListener", "dispatchEvent", []);
|
||||
Reference in New Issue
Block a user