Difference between revisions of "Template:CSS UCL6"

Line 13: Line 13:
  
 
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
 
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
  <script type="text/javascript">
+
<script type="text/javascript">
 
+
  $(function() {
(function (root, factory) {
+
  $('a[href*=#]:not([href=#])').click(function() {
if ( typeof define === 'function' && define.amd ) {
+
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
define([], factory(root));
+
  var target = $(this.hash);
} else if ( typeof exports === 'object' ) {
+
  target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
module.exports = factory(root);
+
  if (target.length) {
} else {
+
    $('html,body').animate({
root.smoothScroll = factory(root);
+
      scrollTop: target.offset().top
}
+
    }, 1000);
})(typeof global !== 'undefined' ? global : this.window || this.global, function (root) {
+
    return false;
 
+
  }
'use strict';
+
}
 
+
//
+
// Variables
+
//
+
 
+
var smoothScroll = {}; // Object for public APIs
+
var supports = 'querySelector' in document && 'addEventListener' in root; // Feature test
+
var settings, eventTimeout, fixedHeader, headerHeight;
+
 
+
// Default settings
+
var defaults = {
+
selector: '[data-scroll]',
+
selectorHeader: '[data-scroll-header]',
+
speed: 500,
+
easing: 'easeInOutCubic',
+
offset: 0,
+
updateURL: true,
+
callback: function () {}
+
};
+
 
+
 
+
//
+
// Methods
+
//
+
 
+
/**
+
* Merge two or more objects. Returns a new object.
+
* @private
+
* @param {Boolean}  deep    If true, do a deep (or recursive) merge [optional]
+
* @param {Object}  objects  The objects to merge together
+
* @returns {Object}          Merged values of defaults and options
+
*/
+
var extend = function () {
+
 
+
// Variables
+
var extended = {};
+
var deep = false;
+
var i = 0;
+
var length = arguments.length;
+
 
+
// Check if a deep merge
+
if ( Object.prototype.toString.call( arguments[0] ) === '[object Boolean]' ) {
+
deep = arguments[0];
+
i++;
+
}
+
 
+
// Merge the object into the extended object
+
var merge = function (obj) {
+
for ( var prop in obj ) {
+
if ( Object.prototype.hasOwnProperty.call( obj, prop ) ) {
+
// If deep merge and property is an object, merge properties
+
if ( deep && Object.prototype.toString.call(obj[prop]) === '[object Object]' ) {
+
extended[prop] = extend( true, extended[prop], obj[prop] );
+
} else {
+
extended[prop] = obj[prop];
+
}
+
}
+
}
+
};
+
 
+
// Loop through each object and conduct a merge
+
for ( ; i < length; i++ ) {
+
var obj = arguments[i];
+
merge(obj);
+
}
+
 
+
return extended;
+
 
+
};
+
 
+
/**
+
* Get the height of an element.
+
* @private
+
* @param  {Node} elem The element to get the height of
+
* @return {Number}    The element's height in pixels
+
*/
+
var getHeight = function ( elem ) {
+
return Math.max( elem.scrollHeight, elem.offsetHeight, elem.clientHeight );
+
};
+
 
+
/**
+
* Get the closest matching element up the DOM tree.
+
* @private
+
* @param  {Element} elem    Starting element
+
* @param  {String}  selector Selector to match against (class, ID, data attribute, or tag)
+
* @return {Boolean|Element}  Returns null if not match found
+
*/
+
var getClosest = function ( elem, selector ) {
+
 
+
// Variables
+
var firstChar = selector.charAt(0);
+
var supports = 'classList' in document.documentElement;
+
var attribute, value;
+
 
+
// If selector is a data attribute, split attribute from value
+
if ( firstChar === '[' ) {
+
selector = selector.substr(1, selector.length - 2);
+
attribute = selector.split( '=' );
+
 
+
if ( attribute.length > 1 ) {
+
value = true;
+
attribute[1] = attribute[1].replace( /"/g, '' ).replace( /'/g, '' );
+
}
+
}
+
 
+
// Get closest match
+
for ( ; elem && elem !== document; elem = elem.parentNode ) {
+
 
+
// If selector is a class
+
if ( firstChar === '.' ) {
+
if ( supports ) {
+
if ( elem.classList.contains( selector.substr(1) ) ) {
+
return elem;
+
}
+
} else {
+
if ( new RegExp('(^|\\s)' + selector.substr(1) + '(\\s|$)').test( elem.className ) ) {
+
return elem;
+
}
+
}
+
}
+
 
+
// If selector is an ID
+
if ( firstChar === '#' ) {
+
if ( elem.id === selector.substr(1) ) {
+
return elem;
+
}
+
}
+
 
+
// If selector is a data attribute
+
if ( firstChar === '[' ) {
+
if ( elem.hasAttribute( attribute[0] ) ) {
+
if ( value ) {
+
if ( elem.getAttribute( attribute[0] ) === attribute[1] ) {
+
return elem;
+
}
+
} else {
+
return elem;
+
}
+
}
+
}
+
 
+
// If selector is a tag
+
if ( elem.tagName.toLowerCase() === selector ) {
+
return elem;
+
}
+
 
+
}
+
 
+
return null;
+
 
+
};
+
 
+
/**
+
* Escape special characters for use with querySelector
+
* @private
+
* @param {String} id The anchor ID to escape
+
* @author Mathias Bynens
+
* @link https://github.com/mathiasbynens/CSS.escape
+
*/
+
var escapeCharacters = function ( id ) {
+
var string = String(id);
+
var length = string.length;
+
var index = -1;
+
var codeUnit;
+
var result = '';
+
var firstCodeUnit = string.charCodeAt(0);
+
while (++index < length) {
+
codeUnit = string.charCodeAt(index);
+
// Note: there’s no need to special-case astral symbols, surrogate
+
// pairs, or lone surrogates.
+
 
+
// If the character is NULL (U+0000), then throw an
+
// `InvalidCharacterError` exception and terminate these steps.
+
if (codeUnit === 0x0000) {
+
throw new InvalidCharacterError(
+
'Invalid character: the input contains U+0000.'
+
);
+
}
+
 
+
if (
+
// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
+
// U+007F, […]
+
(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
+
// If the character is the first character and is in the range [0-9]
+
// (U+0030 to U+0039), […]
+
(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+
// If the character is the second character and is in the range [0-9]
+
// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
+
(
+
index === 1 &&
+
codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
+
firstCodeUnit === 0x002D
+
)
+
) {
+
// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
+
result += '\\' + codeUnit.toString(16) + ' ';
+
continue;
+
}
+
 
+
// If the character is not handled by one of the above rules and is
+
// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
+
// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
+
// U+005A), or [a-z] (U+0061 to U+007A), […]
+
if (
+
codeUnit >= 0x0080 ||
+
codeUnit === 0x002D ||
+
codeUnit === 0x005F ||
+
codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
+
codeUnit >= 0x0041 && codeUnit <= 0x005A ||
+
codeUnit >= 0x0061 && codeUnit <= 0x007A
+
) {
+
// the character itself
+
result += string.charAt(index);
+
continue;
+
}
+
 
+
// Otherwise, the escaped character.
+
// http://dev.w3.org/csswg/cssom/#escape-a-character
+
result += '\\' + string.charAt(index);
+
 
+
}
+
return result;
+
};
+
 
+
/**
+
* Calculate the easing pattern
+
* @private
+
* @link https://gist.github.com/gre/1650294
+
* @param {String} type Easing pattern
+
* @param {Number} time Time animation should take to complete
+
* @returns {Number}
+
*/
+
var easingPattern = function ( type, time ) {
+
var pattern;
+
if ( type === 'easeInQuad' ) pattern = time * time; // accelerating from zero velocity
+
if ( type === 'easeOutQuad' ) pattern = time * (2 - time); // decelerating to zero velocity
+
if ( type === 'easeInOutQuad' ) pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
+
if ( type === 'easeInCubic' ) pattern = time * time * time; // accelerating from zero velocity
+
if ( type === 'easeOutCubic' ) pattern = (--time) * time * time + 1; // decelerating to zero velocity
+
if ( type === 'easeInOutCubic' ) pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
+
if ( type === 'easeInQuart' ) pattern = time * time * time * time; // accelerating from zero velocity
+
if ( type === 'easeOutQuart' ) pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
+
if ( type === 'easeInOutQuart' ) pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
+
if ( type === 'easeInQuint' ) pattern = time * time * time * time * time; // accelerating from zero velocity
+
if ( type === 'easeOutQuint' ) pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
+
if ( type === 'easeInOutQuint' ) pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
+
return pattern || time; // no easing, no acceleration
+
};
+
 
+
/**
+
* Calculate how far to scroll
+
* @private
+
* @param {Element} anchor The anchor element to scroll to
+
* @param {Number} headerHeight Height of a fixed header, if any
+
* @param {Number} offset Number of pixels by which to offset scroll
+
* @returns {Number}
+
*/
+
var getEndLocation = function ( anchor, headerHeight, offset ) {
+
var location = 0;
+
if (anchor.offsetParent) {
+
do {
+
location += anchor.offsetTop;
+
anchor = anchor.offsetParent;
+
} while (anchor);
+
}
+
location = location - headerHeight - offset;
+
return location >= 0 ? location : 0;
+
};
+
 
+
/**
+
* Determine the document's height
+
* @private
+
* @returns {Number}
+
*/
+
var getDocumentHeight = function () {
+
return Math.max(
+
root.document.body.scrollHeight, root.document.documentElement.scrollHeight,
+
root.document.body.offsetHeight, root.document.documentElement.offsetHeight,
+
root.document.body.clientHeight, root.document.documentElement.clientHeight
+
);
+
};
+
 
+
/**
+
* Convert data-options attribute into an object of key/value pairs
+
* @private
+
* @param {String} options Link-specific options as a data attribute string
+
* @returns {Object}
+
*/
+
var getDataOptions = function ( options ) {
+
return !options || !(typeof JSON === 'object' && typeof JSON.parse === 'function') ? {} : JSON.parse( options );
+
};
+
 
+
/**
+
* Update the URL
+
* @private
+
* @param {Element} anchor The element to scroll to
+
* @param {Boolean} url Whether or not to update the URL history
+
*/
+
var updateUrl = function ( anchor, url ) {
+
if ( root.history.pushState && (url || url === 'true') ) {
+
root.history.pushState( null, null, [root.location.protocol, '//', root.location.host, root.location.pathname, root.location.search, anchor].join('') );
+
}
+
};
+
 
+
var getHeaderHeight = function ( header ) {
+
return header === null ? 0 : ( getHeight( header ) + header.offsetTop );
+
};
+
 
+
/**
+
* Start/stop the scrolling animation
+
* @public
+
* @param {Element} toggle The element that toggled the scroll event
+
* @param {Element} anchor The element to scroll to
+
* @param {Object} options
+
*/
+
smoothScroll.animateScroll = function ( toggle, anchor, options ) {
+
 
+
// Options and overrides
+
var overrides = getDataOptions( toggle ? toggle.getAttribute('data-options') : null );
+
var settings = extend( settings || defaults, options || {}, overrides ); // Merge user options with defaults
+
anchor = '#' + escapeCharacters(anchor.substr(1)); // Escape special characters and leading numbers
+
 
+
// Selectors and variables
+
var anchorElem = anchor === '#' ? root.document.documentElement : root.document.querySelector(anchor);
+
var startLocation = root.pageYOffset; // Current location on the page
+
if ( !fixedHeader ) { fixedHeader = root.document.querySelector( settings.selectorHeader ); }  // Get the fixed header if not already set
+
if ( !headerHeight ) { headerHeight = getHeaderHeight( fixedHeader ); } // Get the height of a fixed header if one exists and not already set
+
var endLocation = getEndLocation( anchorElem, headerHeight, parseInt(settings.offset, 10) ); // Scroll to location
+
var animationInterval; // interval timer
+
var distance = endLocation - startLocation; // distance to travel
+
var documentHeight = getDocumentHeight();
+
var timeLapsed = 0;
+
var percentage, position;
+
 
+
// Update URL
+
updateUrl(anchor, settings.updateURL);
+
 
+
/**
+
* Stop the scroll animation when it reaches its target (or the bottom/top of page)
+
* @private
+
* @param {Number} position Current position on the page
+
* @param {Number} endLocation Scroll to location
+
* @param {Number} animationInterval How much to scroll on this loop
+
*/
+
var stopAnimateScroll = function (position, endLocation, animationInterval) {
+
var currentLocation = root.pageYOffset;
+
if ( position == endLocation || currentLocation == endLocation || ( (root.innerHeight + currentLocation) >= documentHeight ) ) {
+
clearInterval(animationInterval);
+
anchorElem.focus();
+
settings.callback( toggle, anchor ); // Run callbacks after animation complete
+
}
+
};
+
 
+
/**
+
* Loop scrolling animation
+
* @private
+
*/
+
var loopAnimateScroll = function () {
+
timeLapsed += 16;
+
percentage = ( timeLapsed / parseInt(settings.speed, 10) );
+
percentage = ( percentage > 1 ) ? 1 : percentage;
+
position = startLocation + ( distance * easingPattern(settings.easing, percentage) );
+
root.scrollTo( 0, Math.floor(position) );
+
stopAnimateScroll(position, endLocation, animationInterval);
+
};
+
 
+
/**
+
* Set interval timer
+
* @private
+
*/
+
var startAnimateScroll = function () {
+
animationInterval = setInterval(loopAnimateScroll, 16);
+
};
+
 
+
/**
+
* Reset position to fix weird iOS bug
+
* @link https://github.com/cferdinandi/smooth-scroll/issues/45
+
*/
+
if ( root.pageYOffset === 0 ) {
+
root.scrollTo( 0, 0 );
+
}
+
 
+
// Start scrolling animation
+
startAnimateScroll();
+
 
+
};
+
 
+
/**
+
* If smooth scroll element clicked, animate scroll
+
* @private
+
*/
+
var eventHandler = function (event) {
+
var toggle = getClosest( event.target, settings.selector );
+
if ( toggle && toggle.tagName.toLowerCase() === 'a' ) {
+
event.preventDefault(); // Prevent default click event
+
smoothScroll.animateScroll( toggle, toggle.hash, settings); // Animate scroll
+
}
+
};
+
 
+
/**
+
* On window scroll and resize, only run events at a rate of 15fps for better performance
+
* @private
+
* @param  {Function} eventTimeout Timeout function
+
* @param  {Object} settings
+
*/
+
var eventThrottler = function (event) {
+
if ( !eventTimeout ) {
+
eventTimeout = setTimeout(function() {
+
eventTimeout = null; // Reset timeout
+
headerHeight = getHeaderHeight( fixedHeader ); // Get the height of a fixed header if one exists
+
}, 66);
+
}
+
};
+
 
+
/**
+
* Destroy the current initialization.
+
* @public
+
*/
+
smoothScroll.destroy = function () {
+
 
+
// If plugin isn't already initialized, stop
+
if ( !settings ) return;
+
 
+
// Remove event listeners
+
root.document.removeEventListener( 'click', eventHandler, false );
+
root.removeEventListener( 'resize', eventThrottler, false );
+
 
+
// Reset varaibles
+
settings = null;
+
eventTimeout = null;
+
fixedHeader = null;
+
headerHeight = null;
+
};
+
 
+
/**
+
* Initialize Smooth Scroll
+
* @public
+
* @param {Object} options User settings
+
*/
+
smoothScroll.init = function ( options ) {
+
 
+
// feature test
+
if ( !supports ) return;
+
 
+
// Destroy any existing initializations
+
smoothScroll.destroy();
+
 
+
// Selectors and variables
+
settings = extend( defaults, options || {} ); // Merge user options with defaults
+
fixedHeader = root.document.querySelector( settings.selectorHeader ); // Get the fixed header
+
headerHeight = getHeaderHeight( fixedHeader );
+
 
+
// When a toggle is clicked, run the click handler
+
root.document.addEventListener('click', eventHandler, false );
+
if ( fixedHeader ) { root.addEventListener( 'resize', eventThrottler, false ); }
+
 
+
};
+
 
+
 
+
//
+
// Public APIs
+
//
+
 
+
return smoothScroll;
+
 
+
 
});
 
});
</script>
+
});
 
+
  </script>
 
+
  <script>
+
smoothScroll.init({
+
speed: 200,
+
easing: 'easeInOutCubic',
+
offset: 0,
+
updateURL: true,
+
callbackBefore: function ( toggle, anchor ) {},
+
callbackAfter: function ( toggle, anchor ) {}
+
});
+
</script>
+
 
    
 
    
 
<style type="text/css">
 
<style type="text/css">

Revision as of 22:59, 18 September 2015

'