Apply JSHint and JSCS with jQuery configs
Closes gh-535. Closes gh-529.
This commit is contained in:
Fagner Brack
committed by
Fagner Brack
Fagner Brack
parent
8e48883853
commit
3f4eddeb6e
2
.gitignore
vendored
Normal file
2
.gitignore
vendored
Normal file
@@ -0,0 +1,2 @@
|
||||
/node_modules
|
||||
/npm-debug.log
|
||||
12
.jshintrc
Normal file
12
.jshintrc
Normal file
@@ -0,0 +1,12 @@
|
||||
{
|
||||
"boss": true,
|
||||
"curly": true,
|
||||
"eqeqeq": true,
|
||||
"eqnull": true,
|
||||
"expr": true,
|
||||
"immed": true,
|
||||
"noarg": true,
|
||||
"quotmark": "double",
|
||||
"undef": true,
|
||||
"unused": true
|
||||
}
|
||||
@@ -19,3 +19,4 @@ Guidelines:
|
||||
* If proposing a feature, make sure to discuss that as an issue first.
|
||||
* Create a new [topic branch](https://github.com/dchelimsky/rspec/wiki/Topic-Branches) for every separate change you make.
|
||||
* Make sure impress.js runs successfully on as many browsers as you can test.
|
||||
* Run `npm lint` to make sure the code is consistent with the project standards.
|
||||
|
||||
557
js/impress.js
557
js/impress.js
@@ -21,30 +21,30 @@
|
||||
|
||||
// You are one of those who like to know how things work inside?
|
||||
// Let me show you the cogs that make impress.js run...
|
||||
(function ( document, window ) {
|
||||
'use strict';
|
||||
( function( document, window ) {
|
||||
"use strict";
|
||||
|
||||
// HELPER FUNCTIONS
|
||||
|
||||
// `pfx` is a function that takes a standard CSS property name as a parameter
|
||||
// and returns it's prefixed version valid for current browser it runs in.
|
||||
// The code is heavily inspired by Modernizr http://www.modernizr.com/
|
||||
var pfx = (function () {
|
||||
var pfx = ( function() {
|
||||
|
||||
var style = document.createElement('dummy').style,
|
||||
prefixes = 'Webkit Moz O ms Khtml'.split(' '),
|
||||
var style = document.createElement( "dummy" ).style,
|
||||
prefixes = "Webkit Moz O ms Khtml".split( " " ),
|
||||
memory = {};
|
||||
|
||||
return function ( prop ) {
|
||||
return function( prop ) {
|
||||
if ( typeof memory[ prop ] === "undefined" ) {
|
||||
|
||||
var ucProp = prop.charAt(0).toUpperCase() + prop.substr(1),
|
||||
props = (prop + ' ' + prefixes.join(ucProp + ' ') + ucProp).split(' ');
|
||||
var ucProp = prop.charAt( 0 ).toUpperCase() + prop.substr( 1 ),
|
||||
props = ( prop + " " + prefixes.join( ucProp + " " ) + ucProp ).split( " " );
|
||||
|
||||
memory[ prop ] = null;
|
||||
for ( var i in props ) {
|
||||
if ( style[ props[i] ] !== undefined ) {
|
||||
memory[ prop ] = props[i];
|
||||
if ( style[ props[ i ] ] !== undefined ) {
|
||||
memory[ prop ] = props[ i ];
|
||||
break;
|
||||
}
|
||||
}
|
||||
@@ -54,24 +54,24 @@
|
||||
return memory[ prop ];
|
||||
};
|
||||
|
||||
})();
|
||||
} )();
|
||||
|
||||
// `arraify` takes an array-like object and turns it into real Array
|
||||
// to make all the Array.prototype goodness available.
|
||||
var arrayify = function ( a ) {
|
||||
var arrayify = function( a ) {
|
||||
return [].slice.call( a );
|
||||
};
|
||||
|
||||
// `css` function applies the styles given in `props` object to the element
|
||||
// given as `el`. It runs all property names through `pfx` function to make
|
||||
// sure proper prefixed version of the property is used.
|
||||
var css = function ( el, props ) {
|
||||
var css = function( el, props ) {
|
||||
var key, pkey;
|
||||
for ( key in props ) {
|
||||
if ( props.hasOwnProperty(key) ) {
|
||||
pkey = pfx(key);
|
||||
if ( props.hasOwnProperty( key ) ) {
|
||||
pkey = pfx( key );
|
||||
if ( pkey !== null ) {
|
||||
el.style[pkey] = props[key];
|
||||
el.style[ pkey ] = props[ key ];
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -81,83 +81,84 @@
|
||||
// `toNumber` takes a value given as `numeric` parameter and tries to turn
|
||||
// it into a number. If it is not possible it returns 0 (or other value
|
||||
// given as `fallback`).
|
||||
var toNumber = function (numeric, fallback) {
|
||||
return isNaN(numeric) ? (fallback || 0) : Number(numeric);
|
||||
var toNumber = function( numeric, fallback ) {
|
||||
return isNaN( numeric ) ? ( fallback || 0 ) : Number( numeric );
|
||||
};
|
||||
|
||||
// `byId` returns element with given `id` - you probably have guessed that ;)
|
||||
var byId = function ( id ) {
|
||||
return document.getElementById(id);
|
||||
var byId = function( id ) {
|
||||
return document.getElementById( id );
|
||||
};
|
||||
|
||||
// `$` returns first element for given CSS `selector` in the `context` of
|
||||
// the given element or whole document.
|
||||
var $ = function ( selector, context ) {
|
||||
var $ = function( selector, context ) {
|
||||
context = context || document;
|
||||
return context.querySelector(selector);
|
||||
return context.querySelector( selector );
|
||||
};
|
||||
|
||||
// `$$` return an array of elements for given CSS `selector` in the `context` of
|
||||
// the given element or whole document.
|
||||
var $$ = function ( selector, context ) {
|
||||
var $$ = function( selector, context ) {
|
||||
context = context || document;
|
||||
return arrayify( context.querySelectorAll(selector) );
|
||||
return arrayify( context.querySelectorAll( selector ) );
|
||||
};
|
||||
|
||||
// `triggerEvent` builds a custom DOM event with given `eventName` and `detail` data
|
||||
// and triggers it on element given as `el`.
|
||||
var triggerEvent = function (el, eventName, detail) {
|
||||
var event = document.createEvent("CustomEvent");
|
||||
event.initCustomEvent(eventName, true, true, detail);
|
||||
el.dispatchEvent(event);
|
||||
var triggerEvent = function( el, eventName, detail ) {
|
||||
var event = document.createEvent( "CustomEvent" );
|
||||
event.initCustomEvent( eventName, true, true, detail );
|
||||
el.dispatchEvent( event );
|
||||
};
|
||||
|
||||
// `translate` builds a translate transform string for given data.
|
||||
var translate = function ( t ) {
|
||||
var translate = function( t ) {
|
||||
return " translate3d(" + t.x + "px," + t.y + "px," + t.z + "px) ";
|
||||
};
|
||||
|
||||
// `rotate` builds a rotate transform string for given data.
|
||||
// By default the rotations are in X Y Z order that can be reverted by passing `true`
|
||||
// as second parameter.
|
||||
var rotate = function ( r, revert ) {
|
||||
var rotate = function( r, revert ) {
|
||||
var rX = " rotateX(" + r.x + "deg) ",
|
||||
rY = " rotateY(" + r.y + "deg) ",
|
||||
rZ = " rotateZ(" + r.z + "deg) ";
|
||||
|
||||
return revert ? rZ+rY+rX : rX+rY+rZ;
|
||||
return revert ? rZ + rY + rX : rX + rY + rZ;
|
||||
};
|
||||
|
||||
// `scale` builds a scale transform string for given data.
|
||||
var scale = function ( s ) {
|
||||
var scale = function( s ) {
|
||||
return " scale(" + s + ") ";
|
||||
};
|
||||
|
||||
// `perspective` builds a perspective transform string for given data.
|
||||
var perspective = function ( p ) {
|
||||
var perspective = function( p ) {
|
||||
return " perspective(" + p + "px) ";
|
||||
};
|
||||
|
||||
// `getElementFromHash` returns an element located by id from hash part of
|
||||
// window location.
|
||||
var getElementFromHash = function () {
|
||||
// get id from url # by removing `#` or `#/` from the beginning,
|
||||
var getElementFromHash = function() {
|
||||
|
||||
// Get id from url # by removing `#` or `#/` from the beginning,
|
||||
// so both "fallback" `#slide-id` and "enhanced" `#/slide-id` will work
|
||||
return byId( window.location.hash.replace(/^#\/?/,"") );
|
||||
return byId( window.location.hash.replace( /^#\/?/, "" ) );
|
||||
};
|
||||
|
||||
// `computeWindowScale` counts the scale factor between window size and size
|
||||
// defined for the presentation in the config.
|
||||
var computeWindowScale = function ( config ) {
|
||||
var computeWindowScale = function( config ) {
|
||||
var hScale = window.innerHeight / config.height,
|
||||
wScale = window.innerWidth / config.width,
|
||||
scale = hScale > wScale ? wScale : hScale;
|
||||
|
||||
if (config.maxScale && scale > config.maxScale) {
|
||||
if ( config.maxScale && scale > config.maxScale ) {
|
||||
scale = config.maxScale;
|
||||
}
|
||||
|
||||
if (config.minScale && scale < config.minScale) {
|
||||
if ( config.minScale && scale < config.minScale ) {
|
||||
scale = config.minScale;
|
||||
}
|
||||
|
||||
@@ -169,24 +170,26 @@
|
||||
|
||||
var ua = navigator.userAgent.toLowerCase();
|
||||
var impressSupported =
|
||||
// browser should support CSS 3D transtorms
|
||||
( pfx("perspective") !== null ) &&
|
||||
|
||||
// and `classList` and `dataset` APIs
|
||||
// Browser should support CSS 3D transtorms
|
||||
( pfx( "perspective" ) !== null ) &&
|
||||
|
||||
// Browser should support `classList` and `dataset` APIs
|
||||
( body.classList ) &&
|
||||
( body.dataset ) &&
|
||||
|
||||
// but some mobile devices need to be blacklisted,
|
||||
// But some mobile devices need to be blacklisted,
|
||||
// because their CSS 3D support or hardware is not
|
||||
// good enough to run impress.js properly, sorry...
|
||||
( ua.search(/(iphone)|(ipod)|(android)/) === -1 );
|
||||
( ua.search( /(iphone)|(ipod)|(android)/ ) === -1 );
|
||||
|
||||
if (!impressSupported) {
|
||||
// we can't be sure that `classList` is supported
|
||||
if ( !impressSupported ) {
|
||||
|
||||
// We can't be sure that `classList` is supported
|
||||
body.className += " impress-not-supported ";
|
||||
} else {
|
||||
body.classList.remove("impress-not-supported");
|
||||
body.classList.add("impress-supported");
|
||||
body.classList.remove( "impress-not-supported" );
|
||||
body.classList.add( "impress-supported" );
|
||||
}
|
||||
|
||||
// GLOBALS AND DEFAULTS
|
||||
@@ -196,7 +199,7 @@
|
||||
// sure if it makes any sense in practice ;)
|
||||
var roots = {};
|
||||
|
||||
// some default config values.
|
||||
// Some default config values.
|
||||
var defaults = {
|
||||
width: 1024,
|
||||
height: 768,
|
||||
@@ -208,8 +211,8 @@
|
||||
transitionDuration: 1000
|
||||
};
|
||||
|
||||
// it's just an empty function ... and a useless comment.
|
||||
var empty = function () { return false; };
|
||||
// It's just an empty function ... and a useless comment.
|
||||
var empty = function() { return false; };
|
||||
|
||||
// IMPRESS.JS API
|
||||
|
||||
@@ -217,12 +220,12 @@
|
||||
// It's the core `impress` function that returns the impress.js API
|
||||
// for a presentation based on the element with given id ('impress'
|
||||
// by default).
|
||||
var impress = window.impress = function ( rootId ) {
|
||||
var impress = window.impress = function( rootId ) {
|
||||
|
||||
// If impress.js is not supported by the browser return a dummy API
|
||||
// it may not be a perfect solution but we return early and avoid
|
||||
// running code that may use features not implemented in the browser.
|
||||
if (!impressSupported) {
|
||||
if ( !impressSupported ) {
|
||||
return {
|
||||
init: empty,
|
||||
goto: empty,
|
||||
@@ -233,32 +236,32 @@
|
||||
|
||||
rootId = rootId || "impress";
|
||||
|
||||
// if given root is already initialized just return the API
|
||||
if (roots["impress-root-" + rootId]) {
|
||||
return roots["impress-root-" + rootId];
|
||||
// If given root is already initialized just return the API
|
||||
if ( roots[ "impress-root-" + rootId ] ) {
|
||||
return roots[ "impress-root-" + rootId ];
|
||||
}
|
||||
|
||||
// data of all presentation steps
|
||||
// Data of all presentation steps
|
||||
var stepsData = {};
|
||||
|
||||
// element of currently active step
|
||||
// Element of currently active step
|
||||
var activeStep = null;
|
||||
|
||||
// current state (position, rotation and scale) of the presentation
|
||||
// Current state (position, rotation and scale) of the presentation
|
||||
var currentState = null;
|
||||
|
||||
// array of step elements
|
||||
// Array of step elements
|
||||
var steps = null;
|
||||
|
||||
// configuration options
|
||||
// Configuration options
|
||||
var config = null;
|
||||
|
||||
// scale factor of the browser window
|
||||
// Scale factor of the browser window
|
||||
var windowScale = null;
|
||||
|
||||
// root presentation elements
|
||||
// Root presentation elements
|
||||
var root = byId( rootId );
|
||||
var canvas = document.createElement("div");
|
||||
var canvas = document.createElement( "div" );
|
||||
|
||||
var initialized = false;
|
||||
|
||||
@@ -270,15 +273,15 @@
|
||||
// `impress:stepleave` is triggered when the step is left (the
|
||||
// transition to next step just starts).
|
||||
|
||||
// reference to last entered step
|
||||
// Reference to last entered step
|
||||
var lastEntered = null;
|
||||
|
||||
// `onStepEnter` is called whenever the step element is entered
|
||||
// but the event is triggered only if the step is different than
|
||||
// last entered step.
|
||||
var onStepEnter = function (step) {
|
||||
if (lastEntered !== step) {
|
||||
triggerEvent(step, "impress:stepenter");
|
||||
var onStepEnter = function( step ) {
|
||||
if ( lastEntered !== step ) {
|
||||
triggerEvent( step, "impress:stepenter" );
|
||||
lastEntered = step;
|
||||
}
|
||||
};
|
||||
@@ -286,62 +289,62 @@
|
||||
// `onStepLeave` is called whenever the step element is left
|
||||
// but the event is triggered only if the step is the same as
|
||||
// last entered step.
|
||||
var onStepLeave = function (step) {
|
||||
if (lastEntered === step) {
|
||||
triggerEvent(step, "impress:stepleave");
|
||||
var onStepLeave = function( step ) {
|
||||
if ( lastEntered === step ) {
|
||||
triggerEvent( step, "impress:stepleave" );
|
||||
lastEntered = null;
|
||||
}
|
||||
};
|
||||
|
||||
// `initStep` initializes given step element by reading data from its
|
||||
// data attributes and setting correct styles.
|
||||
var initStep = function ( el, idx ) {
|
||||
var initStep = function( el, idx ) {
|
||||
var data = el.dataset,
|
||||
step = {
|
||||
translate: {
|
||||
x: toNumber(data.x),
|
||||
y: toNumber(data.y),
|
||||
z: toNumber(data.z)
|
||||
x: toNumber( data.x ),
|
||||
y: toNumber( data.y ),
|
||||
z: toNumber( data.z )
|
||||
},
|
||||
rotate: {
|
||||
x: toNumber(data.rotateX),
|
||||
y: toNumber(data.rotateY),
|
||||
z: toNumber(data.rotateZ || data.rotate)
|
||||
x: toNumber( data.rotateX ),
|
||||
y: toNumber( data.rotateY ),
|
||||
z: toNumber( data.rotateZ || data.rotate )
|
||||
},
|
||||
scale: toNumber(data.scale, 1),
|
||||
scale: toNumber( data.scale, 1 ),
|
||||
el: el
|
||||
};
|
||||
|
||||
if ( !el.id ) {
|
||||
el.id = "step-" + (idx + 1);
|
||||
el.id = "step-" + ( idx + 1 );
|
||||
}
|
||||
|
||||
stepsData["impress-" + el.id] = step;
|
||||
stepsData[ "impress-" + el.id ] = step;
|
||||
|
||||
css(el, {
|
||||
css( el, {
|
||||
position: "absolute",
|
||||
transform: "translate(-50%,-50%)" +
|
||||
translate(step.translate) +
|
||||
rotate(step.rotate) +
|
||||
scale(step.scale),
|
||||
translate( step.translate ) +
|
||||
rotate( step.rotate ) +
|
||||
scale( step.scale ),
|
||||
transformStyle: "preserve-3d"
|
||||
});
|
||||
} );
|
||||
};
|
||||
|
||||
// `init` API function that initializes (and runs) the presentation.
|
||||
var init = function () {
|
||||
if (initialized) { return; }
|
||||
var init = function() {
|
||||
if ( initialized ) { return; }
|
||||
|
||||
// First we set up the viewport for mobile devices.
|
||||
// For some reason iPad goes nuts when it is not done properly.
|
||||
var meta = $("meta[name='viewport']") || document.createElement("meta");
|
||||
var meta = $( "meta[name='viewport']" ) || document.createElement( "meta" );
|
||||
meta.content = "width=device-width, minimum-scale=1, maximum-scale=1, user-scalable=no";
|
||||
if (meta.parentNode !== document.head) {
|
||||
meta.name = 'viewport';
|
||||
document.head.appendChild(meta);
|
||||
if ( meta.parentNode !== document.head ) {
|
||||
meta.name = "viewport";
|
||||
document.head.appendChild( meta );
|
||||
}
|
||||
|
||||
// initialize configuration object
|
||||
// Initialize configuration object
|
||||
var rootData = root.dataset;
|
||||
config = {
|
||||
width: toNumber( rootData.width, defaults.width ),
|
||||
@@ -349,24 +352,26 @@
|
||||
maxScale: toNumber( rootData.maxScale, defaults.maxScale ),
|
||||
minScale: toNumber( rootData.minScale, defaults.minScale ),
|
||||
perspective: toNumber( rootData.perspective, defaults.perspective ),
|
||||
transitionDuration: toNumber( rootData.transitionDuration, defaults.transitionDuration )
|
||||
transitionDuration: toNumber(
|
||||
rootData.transitionDuration, defaults.transitionDuration
|
||||
)
|
||||
};
|
||||
|
||||
windowScale = computeWindowScale( config );
|
||||
|
||||
// wrap steps with "canvas" element
|
||||
arrayify( root.childNodes ).forEach(function ( el ) {
|
||||
// Wrap steps with "canvas" element
|
||||
arrayify( root.childNodes ).forEach( function( el ) {
|
||||
canvas.appendChild( el );
|
||||
});
|
||||
root.appendChild(canvas);
|
||||
} );
|
||||
root.appendChild( canvas );
|
||||
|
||||
// set initial styles
|
||||
// Set initial styles
|
||||
document.documentElement.style.height = "100%";
|
||||
|
||||
css(body, {
|
||||
css( body, {
|
||||
height: "100%",
|
||||
overflow: "hidden"
|
||||
});
|
||||
} );
|
||||
|
||||
var rootStyles = {
|
||||
position: "absolute",
|
||||
@@ -375,22 +380,22 @@
|
||||
transformStyle: "preserve-3d"
|
||||
};
|
||||
|
||||
css(root, rootStyles);
|
||||
css(root, {
|
||||
css( root, rootStyles );
|
||||
css( root, {
|
||||
top: "50%",
|
||||
left: "50%",
|
||||
transform: perspective( config.perspective/windowScale ) + scale( windowScale )
|
||||
});
|
||||
css(canvas, rootStyles);
|
||||
transform: perspective( config.perspective / windowScale ) + scale( windowScale )
|
||||
} );
|
||||
css( canvas, rootStyles );
|
||||
|
||||
body.classList.remove("impress-disabled");
|
||||
body.classList.add("impress-enabled");
|
||||
body.classList.remove( "impress-disabled" );
|
||||
body.classList.add( "impress-enabled" );
|
||||
|
||||
// get and init steps
|
||||
steps = $$(".step", root);
|
||||
// Get and init steps
|
||||
steps = $$( ".step", root );
|
||||
steps.forEach( initStep );
|
||||
|
||||
// set a default initial state of the canvas
|
||||
// Set a default initial state of the canvas
|
||||
currentState = {
|
||||
translate: { x: 0, y: 0, z: 0 },
|
||||
rotate: { x: 0, y: 0, z: 0 },
|
||||
@@ -399,31 +404,33 @@
|
||||
|
||||
initialized = true;
|
||||
|
||||
triggerEvent(root, "impress:init", { api: roots[ "impress-root-" + rootId ] });
|
||||
triggerEvent( root, "impress:init", { api: roots[ "impress-root-" + rootId ] } );
|
||||
};
|
||||
|
||||
// `getStep` is a helper function that returns a step element defined by parameter.
|
||||
// If a number is given, step with index given by the number is returned, if a string
|
||||
// is given step element with such id is returned, if DOM element is given it is returned
|
||||
// if it is a correct step element.
|
||||
var getStep = function ( step ) {
|
||||
if (typeof step === "number") {
|
||||
step = step < 0 ? steps[ steps.length + step] : steps[ step ];
|
||||
} else if (typeof step === "string") {
|
||||
step = byId(step);
|
||||
var getStep = function( step ) {
|
||||
if ( typeof step === "number" ) {
|
||||
step = step < 0 ? steps[ steps.length + step ] : steps[ step ];
|
||||
} else if ( typeof step === "string" ) {
|
||||
step = byId( step );
|
||||
}
|
||||
return (step && step.id && stepsData["impress-" + step.id]) ? step : null;
|
||||
return ( step && step.id && stepsData[ "impress-" + step.id ] ) ? step : null;
|
||||
};
|
||||
|
||||
// used to reset timeout for `impress:stepenter` event
|
||||
// Used to reset timeout for `impress:stepenter` event
|
||||
var stepEnterTimeout = null;
|
||||
|
||||
// `goto` API function that moves to step given with `el` parameter (by index, id or element),
|
||||
// with a transition `duration` optionally given as second parameter.
|
||||
var goto = function ( el, duration ) {
|
||||
// `goto` API function that moves to step given with `el` parameter
|
||||
// (by index, id or element), with a transition `duration` optionally
|
||||
// given as second parameter.
|
||||
var goto = function( el, duration ) {
|
||||
|
||||
if ( !initialized || !(el = getStep(el)) ) {
|
||||
// presentation not initialized or given element is not a step
|
||||
if ( !initialized || !( el = getStep( el ) ) ) {
|
||||
|
||||
// Presentation not initialized or given element is not a step
|
||||
return false;
|
||||
}
|
||||
|
||||
@@ -434,20 +441,21 @@
|
||||
// So, as a lousy (and lazy) workaround we will make the page scroll back to the top
|
||||
// whenever slide is selected
|
||||
//
|
||||
// If you are reading this and know any better way to handle it, I'll be glad to hear about it!
|
||||
window.scrollTo(0, 0);
|
||||
// If you are reading this and know any better way to handle it, I'll be glad to hear
|
||||
// about it!
|
||||
window.scrollTo( 0, 0 );
|
||||
|
||||
var step = stepsData["impress-" + el.id];
|
||||
var step = stepsData[ "impress-" + el.id ];
|
||||
|
||||
if ( activeStep ) {
|
||||
activeStep.classList.remove("active");
|
||||
body.classList.remove("impress-on-" + activeStep.id);
|
||||
activeStep.classList.remove( "active" );
|
||||
body.classList.remove( "impress-on-" + activeStep.id );
|
||||
}
|
||||
el.classList.add("active");
|
||||
el.classList.add( "active" );
|
||||
|
||||
body.classList.add("impress-on-" + el.id);
|
||||
body.classList.add( "impress-on-" + el.id );
|
||||
|
||||
// compute target state of the canvas based on given step
|
||||
// Compute target state of the canvas based on given step
|
||||
var target = {
|
||||
rotate: {
|
||||
x: -step.rotate.x,
|
||||
@@ -470,20 +478,20 @@
|
||||
// with scaling down and move and rotation are delayed.
|
||||
var zoomin = target.scale >= currentState.scale;
|
||||
|
||||
duration = toNumber(duration, config.transitionDuration);
|
||||
var delay = (duration / 2);
|
||||
duration = toNumber( duration, config.transitionDuration );
|
||||
var delay = ( duration / 2 );
|
||||
|
||||
// if the same step is re-selected, force computing window scaling,
|
||||
// If the same step is re-selected, force computing window scaling,
|
||||
// because it is likely to be caused by window resize
|
||||
if (el === activeStep) {
|
||||
windowScale = computeWindowScale(config);
|
||||
if ( el === activeStep ) {
|
||||
windowScale = computeWindowScale( config );
|
||||
}
|
||||
|
||||
var targetScale = target.scale * windowScale;
|
||||
|
||||
// trigger leave of currently active element (if it's not the same step again)
|
||||
if (activeStep && activeStep !== el) {
|
||||
onStepLeave(activeStep);
|
||||
// Trigger leave of currently active element (if it's not the same step again)
|
||||
if ( activeStep && activeStep !== el ) {
|
||||
onStepLeave( activeStep );
|
||||
}
|
||||
|
||||
// Now we alter transforms of `root` and `canvas` to trigger transitions.
|
||||
@@ -494,74 +502,86 @@
|
||||
// Transitions on them are triggered with different delays (to make
|
||||
// visually nice and 'natural' looking transitions), so we need to know
|
||||
// that both of them are finished.
|
||||
css(root, {
|
||||
// to keep the perspective look similar for different scales
|
||||
css( root, {
|
||||
|
||||
// To keep the perspective look similar for different scales
|
||||
// we need to 'scale' the perspective, too
|
||||
transform: perspective( config.perspective / targetScale ) + scale( targetScale ),
|
||||
transitionDuration: duration + "ms",
|
||||
transitionDelay: (zoomin ? delay : 0) + "ms"
|
||||
});
|
||||
transitionDelay: ( zoomin ? delay : 0 ) + "ms"
|
||||
} );
|
||||
|
||||
css(canvas, {
|
||||
transform: rotate(target.rotate, true) + translate(target.translate),
|
||||
css( canvas, {
|
||||
transform: rotate( target.rotate, true ) + translate( target.translate ),
|
||||
transitionDuration: duration + "ms",
|
||||
transitionDelay: (zoomin ? 0 : delay) + "ms"
|
||||
});
|
||||
transitionDelay: ( zoomin ? 0 : delay ) + "ms"
|
||||
} );
|
||||
|
||||
// Here is a tricky part...
|
||||
//
|
||||
// If there is no change in scale or no change in rotation and translation, it means there was actually
|
||||
// no delay - because there was no transition on `root` or `canvas` elements.
|
||||
// We want to trigger `impress:stepenter` event in the correct moment, so here we compare the current
|
||||
// and target values to check if delay should be taken into account.
|
||||
// If there is no change in scale or no change in rotation and translation, it means
|
||||
// there was actually no delay - because there was no transition on `root` or `canvas`
|
||||
// elements. We want to trigger `impress:stepenter` event in the correct moment, so
|
||||
// here we compare the current and target values to check if delay should be taken into
|
||||
// account.
|
||||
//
|
||||
// I know that this `if` statement looks scary, but it's pretty simple when you know what is going on
|
||||
// I know that this `if` statement looks scary, but it's pretty simple when you know
|
||||
// what is going on
|
||||
// - it's simply comparing all the values.
|
||||
if ( currentState.scale === target.scale ||
|
||||
(currentState.rotate.x === target.rotate.x && currentState.rotate.y === target.rotate.y &&
|
||||
currentState.rotate.z === target.rotate.z && currentState.translate.x === target.translate.x &&
|
||||
currentState.translate.y === target.translate.y && currentState.translate.z === target.translate.z) ) {
|
||||
( currentState.rotate.x === target.rotate.x &&
|
||||
currentState.rotate.y === target.rotate.y &&
|
||||
currentState.rotate.z === target.rotate.z &&
|
||||
currentState.translate.x === target.translate.x &&
|
||||
currentState.translate.y === target.translate.y &&
|
||||
currentState.translate.z === target.translate.z ) ) {
|
||||
delay = 0;
|
||||
}
|
||||
|
||||
// store current state
|
||||
// Store current state
|
||||
currentState = target;
|
||||
activeStep = el;
|
||||
|
||||
// And here is where we trigger `impress:stepenter` event.
|
||||
// We simply set up a timeout to fire it taking transition duration (and possible delay) into account.
|
||||
// We simply set up a timeout to fire it taking transition duration
|
||||
// (and possible delay) into account.
|
||||
//
|
||||
// I really wanted to make it in more elegant way. The `transitionend` event seemed to be the best way
|
||||
// to do it, but the fact that I'm using transitions on two separate elements and that the `transitionend`
|
||||
// event is only triggered when there was a transition (change in the values) caused some bugs and
|
||||
// made the code really complicated, cause I had to handle all the conditions separately. And it still
|
||||
// needed a `setTimeout` fallback for the situations when there is no transition at all.
|
||||
// So I decided that I'd rather make the code simpler than use shiny new `transitionend`.
|
||||
// I really wanted to make it in more elegant way. The `transitionend` event seemed to
|
||||
// be the best way to do it, but the fact that I'm using transitions on two separate
|
||||
// elements and that the `transitionend` event is only triggered when there was a
|
||||
// transition (change in the values) caused some bugs and made the code really
|
||||
// complicated, cause I had to handle all the conditions separately. And it still
|
||||
// needed a `setTimeout` fallback for the situations when there is no transition at
|
||||
// all.
|
||||
// So I decided that I'd rather make the code simpler than use shiny new
|
||||
// `transitionend`.
|
||||
//
|
||||
// If you want learn something interesting and see how it was done with `transitionend` go back to
|
||||
// version 0.5.2 of impress.js: http://github.com/bartaz/impress.js/blob/0.5.2/js/impress.js
|
||||
window.clearTimeout(stepEnterTimeout);
|
||||
stepEnterTimeout = window.setTimeout(function() {
|
||||
onStepEnter(activeStep);
|
||||
}, duration + delay);
|
||||
// If you want learn something interesting and see how it was done with `transitionend`
|
||||
// go back to
|
||||
// version 0.5.2 of impress.js:
|
||||
// http://github.com/bartaz/impress.js/blob/0.5.2/js/impress.js
|
||||
window.clearTimeout( stepEnterTimeout );
|
||||
stepEnterTimeout = window.setTimeout( function() {
|
||||
onStepEnter( activeStep );
|
||||
}, duration + delay );
|
||||
|
||||
return el;
|
||||
};
|
||||
|
||||
// `prev` API function goes to previous step (in document order)
|
||||
var prev = function () {
|
||||
var prev = function() {
|
||||
var prev = steps.indexOf( activeStep ) - 1;
|
||||
prev = prev >= 0 ? steps[ prev ] : steps[ steps.length-1 ];
|
||||
prev = prev >= 0 ? steps[ prev ] : steps[ steps.length - 1 ];
|
||||
|
||||
return goto(prev);
|
||||
return goto( prev );
|
||||
};
|
||||
|
||||
// `next` API function goes to next step (in document order)
|
||||
var next = function () {
|
||||
var next = function() {
|
||||
var next = steps.indexOf( activeStep ) + 1;
|
||||
next = next < steps.length ? steps[ next ] : steps[ 0 ];
|
||||
|
||||
return goto(next);
|
||||
return goto( next );
|
||||
};
|
||||
|
||||
// Adding some useful classes to step elements.
|
||||
@@ -577,29 +597,30 @@
|
||||
// There classes can be used in CSS to style different types of steps.
|
||||
// For example the `present` class can be used to trigger some custom
|
||||
// animations when step is shown.
|
||||
root.addEventListener("impress:init", function(){
|
||||
root.addEventListener( "impress:init", function() {
|
||||
|
||||
// STEP CLASSES
|
||||
steps.forEach(function (step) {
|
||||
step.classList.add("future");
|
||||
});
|
||||
steps.forEach( function( step ) {
|
||||
step.classList.add( "future" );
|
||||
} );
|
||||
|
||||
root.addEventListener("impress:stepenter", function (event) {
|
||||
event.target.classList.remove("past");
|
||||
event.target.classList.remove("future");
|
||||
event.target.classList.add("present");
|
||||
}, false);
|
||||
root.addEventListener( "impress:stepenter", function( event ) {
|
||||
event.target.classList.remove( "past" );
|
||||
event.target.classList.remove( "future" );
|
||||
event.target.classList.add( "present" );
|
||||
}, false );
|
||||
|
||||
root.addEventListener("impress:stepleave", function (event) {
|
||||
event.target.classList.remove("present");
|
||||
event.target.classList.add("past");
|
||||
}, false);
|
||||
root.addEventListener( "impress:stepleave", function( event ) {
|
||||
event.target.classList.remove( "present" );
|
||||
event.target.classList.add( "past" );
|
||||
}, false );
|
||||
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// Adding hash change support.
|
||||
root.addEventListener("impress:init", function(){
|
||||
root.addEventListener( "impress:init", function() {
|
||||
|
||||
// last hash detected
|
||||
// Last hash detected
|
||||
var lastHash = "";
|
||||
|
||||
// `#/step-id` is used instead of `#step-id` to prevent default browser
|
||||
@@ -608,42 +629,43 @@
|
||||
// And it has to be set after animation finishes, because in Chrome it
|
||||
// makes transtion laggy.
|
||||
// BUG: http://code.google.com/p/chromium/issues/detail?id=62820
|
||||
root.addEventListener("impress:stepenter", function (event) {
|
||||
root.addEventListener( "impress:stepenter", function( event ) {
|
||||
window.location.hash = lastHash = "#/" + event.target.id;
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
window.addEventListener( "hashchange", function() {
|
||||
|
||||
window.addEventListener("hashchange", function () {
|
||||
// When the step is entered hash in the location is updated
|
||||
// (just few lines above from here), so the hash change is
|
||||
// triggered and we would call `goto` again on the same element.
|
||||
//
|
||||
// To avoid this we store last entered hash and compare.
|
||||
if (window.location.hash !== lastHash) {
|
||||
if ( window.location.hash !== lastHash ) {
|
||||
goto( getElementFromHash() );
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// START
|
||||
// by selecting step defined in url or first step of the presentation
|
||||
goto(getElementFromHash() || steps[0], 0);
|
||||
}, false);
|
||||
goto( getElementFromHash() || steps[ 0 ], 0 );
|
||||
}, false );
|
||||
|
||||
body.classList.add("impress-disabled");
|
||||
body.classList.add( "impress-disabled" );
|
||||
|
||||
// store and return API for given impress.js root element
|
||||
return (roots[ "impress-root-" + rootId ] = {
|
||||
// Store and return API for given impress.js root element
|
||||
return ( roots[ "impress-root-" + rootId ] = {
|
||||
init: init,
|
||||
goto: goto,
|
||||
next: next,
|
||||
prev: prev
|
||||
});
|
||||
} );
|
||||
|
||||
};
|
||||
|
||||
// flag that can be used in JS to check if browser have passed the support test
|
||||
// Flag that can be used in JS to check if browser have passed the support test
|
||||
impress.supported = impressSupported;
|
||||
|
||||
})(document, window);
|
||||
} )( document, window );
|
||||
|
||||
// NAVIGATION EVENTS
|
||||
|
||||
@@ -653,24 +675,25 @@
|
||||
//
|
||||
// In future I think about moving it to make them optional, move to separate files
|
||||
// and treat more like a 'plugins'.
|
||||
(function ( document, window ) {
|
||||
'use strict';
|
||||
( function( document, window ) {
|
||||
"use strict";
|
||||
|
||||
// throttling function calls, by Remy Sharp
|
||||
// Throttling function calls, by Remy Sharp
|
||||
// http://remysharp.com/2010/07/21/throttling-function-calls/
|
||||
var throttle = function (fn, delay) {
|
||||
var throttle = function( fn, delay ) {
|
||||
var timer = null;
|
||||
return function () {
|
||||
return function() {
|
||||
var context = this, args = arguments;
|
||||
clearTimeout(timer);
|
||||
timer = setTimeout(function () {
|
||||
fn.apply(context, args);
|
||||
}, delay);
|
||||
clearTimeout( timer );
|
||||
timer = setTimeout( function() {
|
||||
fn.apply( context, args );
|
||||
}, delay );
|
||||
};
|
||||
};
|
||||
|
||||
// wait for impress.js to be initialized
|
||||
document.addEventListener("impress:init", function (event) {
|
||||
// Wait for impress.js to be initialized
|
||||
document.addEventListener( "impress:init", function( event ) {
|
||||
|
||||
// Getting API from event data.
|
||||
// So you don't event need to know what is the id of the root element
|
||||
// or anything. `impress:init` event data gives you everything you
|
||||
@@ -680,11 +703,13 @@
|
||||
// KEYBOARD NAVIGATION HANDLERS
|
||||
|
||||
// Prevent default keydown action when one of supported key is pressed.
|
||||
document.addEventListener("keydown", function ( event ) {
|
||||
if ( event.keyCode === 9 || ( event.keyCode >= 32 && event.keyCode <= 34 ) || (event.keyCode >= 37 && event.keyCode <= 40) ) {
|
||||
document.addEventListener( "keydown", function( event ) {
|
||||
if ( event.keyCode === 9 ||
|
||||
( event.keyCode >= 32 && event.keyCode <= 34 ) ||
|
||||
( event.keyCode >= 37 && event.keyCode <= 40 ) ) {
|
||||
event.preventDefault();
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// Trigger impress action (next or prev) on keyup.
|
||||
|
||||
@@ -701,76 +726,81 @@
|
||||
// positioning. I didn't want to just prevent this default action, so I used [tab]
|
||||
// as another way to moving to next step... And yes, I know that for the sake of
|
||||
// consistency I should add [shift+tab] as opposite action...
|
||||
document.addEventListener("keyup", function ( event ) {
|
||||
document.addEventListener( "keyup", function( event ) {
|
||||
|
||||
if ( event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ){
|
||||
if ( event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) {
|
||||
return;
|
||||
}
|
||||
|
||||
if ( event.keyCode === 9 || ( event.keyCode >= 32 && event.keyCode <= 34 ) || (event.keyCode >= 37 && event.keyCode <= 40) ) {
|
||||
switch( event.keyCode ) {
|
||||
case 33: // pg up
|
||||
case 37: // left
|
||||
case 38: // up
|
||||
if ( event.keyCode === 9 ||
|
||||
( event.keyCode >= 32 && event.keyCode <= 34 ) ||
|
||||
( event.keyCode >= 37 && event.keyCode <= 40 ) ) {
|
||||
switch ( event.keyCode ) {
|
||||
case 33: // Page up
|
||||
case 37: // Left
|
||||
case 38: // Up
|
||||
api.prev();
|
||||
break;
|
||||
case 9: // tab
|
||||
case 32: // space
|
||||
case 34: // pg down
|
||||
case 39: // right
|
||||
case 40: // down
|
||||
case 9: // Tab
|
||||
case 32: // Space
|
||||
case 34: // Page down
|
||||
case 39: // Right
|
||||
case 40: // Down
|
||||
api.next();
|
||||
break;
|
||||
}
|
||||
|
||||
event.preventDefault();
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// delegated handler for clicking on the links to presentation steps
|
||||
document.addEventListener("click", function ( event ) {
|
||||
// event delegation with "bubbling"
|
||||
// check if event target (or any of its parents is a link)
|
||||
// Delegated handler for clicking on the links to presentation steps
|
||||
document.addEventListener( "click", function( event ) {
|
||||
|
||||
// Event delegation with "bubbling"
|
||||
// Check if event target (or any of its parents is a link)
|
||||
var target = event.target;
|
||||
while ( (target.tagName !== "A") &&
|
||||
(target !== document.documentElement) ) {
|
||||
while ( ( target.tagName !== "A" ) &&
|
||||
( target !== document.documentElement ) ) {
|
||||
target = target.parentNode;
|
||||
}
|
||||
|
||||
if ( target.tagName === "A" ) {
|
||||
var href = target.getAttribute("href");
|
||||
var href = target.getAttribute( "href" );
|
||||
|
||||
// if it's a link to presentation step, target this step
|
||||
if ( href && href[0] === '#' ) {
|
||||
target = document.getElementById( href.slice(1) );
|
||||
// If it's a link to presentation step, target this step
|
||||
if ( href && href[ 0 ] === "#" ) {
|
||||
target = document.getElementById( href.slice( 1 ) );
|
||||
}
|
||||
}
|
||||
|
||||
if ( api.goto(target) ) {
|
||||
if ( api.goto( target ) ) {
|
||||
event.stopImmediatePropagation();
|
||||
event.preventDefault();
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// delegated handler for clicking on step elements
|
||||
document.addEventListener("click", function ( event ) {
|
||||
// Delegated handler for clicking on step elements
|
||||
document.addEventListener( "click", function( event ) {
|
||||
var target = event.target;
|
||||
// find closest step element that is not active
|
||||
while ( !(target.classList.contains("step") && !target.classList.contains("active")) &&
|
||||
(target !== document.documentElement) ) {
|
||||
|
||||
// Find closest step element that is not active
|
||||
while ( !( target.classList.contains( "step" ) &&
|
||||
!target.classList.contains( "active" ) ) &&
|
||||
( target !== document.documentElement ) ) {
|
||||
target = target.parentNode;
|
||||
}
|
||||
|
||||
if ( api.goto(target) ) {
|
||||
if ( api.goto( target ) ) {
|
||||
event.preventDefault();
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// touch handler to detect taps on the left and right side of the screen
|
||||
// Touch handler to detect taps on the left and right side of the screen
|
||||
// based on awesome work of @hakimel: https://github.com/hakimel/reveal.js
|
||||
document.addEventListener("touchstart", function ( event ) {
|
||||
if (event.touches.length === 1) {
|
||||
var x = event.touches[0].clientX,
|
||||
document.addEventListener( "touchstart", function( event ) {
|
||||
if ( event.touches.length === 1 ) {
|
||||
var x = event.touches[ 0 ].clientX,
|
||||
width = window.innerWidth * 0.3,
|
||||
result = null;
|
||||
|
||||
@@ -780,21 +810,22 @@
|
||||
result = api.next();
|
||||
}
|
||||
|
||||
if (result) {
|
||||
if ( result ) {
|
||||
event.preventDefault();
|
||||
}
|
||||
}
|
||||
}, false);
|
||||
}, false );
|
||||
|
||||
// rescale presentation when window is resized
|
||||
window.addEventListener("resize", throttle(function () {
|
||||
// force going to active step again, to trigger rescaling
|
||||
api.goto( document.querySelector(".step.active"), 500 );
|
||||
}, 250), false);
|
||||
// Rescale presentation when window is resized
|
||||
window.addEventListener( "resize", throttle( function() {
|
||||
|
||||
}, false);
|
||||
// Force going to active step again, to trigger rescaling
|
||||
api.goto( document.querySelector( ".step.active" ), 500 );
|
||||
}, 250 ), false );
|
||||
|
||||
})(document, window);
|
||||
}, false );
|
||||
|
||||
} )( document, window );
|
||||
|
||||
// THAT'S ALL FOLKS!
|
||||
//
|
||||
|
||||
31
package.json
Normal file
31
package.json
Normal file
@@ -0,0 +1,31 @@
|
||||
{
|
||||
"name": "impress.js",
|
||||
"version": "0.5.3",
|
||||
"description": "It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com.",
|
||||
"main": "js/impress.js",
|
||||
"repository": {
|
||||
"type": "git",
|
||||
"url": "https://github.com/impress/impress.js.git"
|
||||
},
|
||||
"keywords": [
|
||||
"presentation",
|
||||
"slides",
|
||||
"slideshow",
|
||||
"css3",
|
||||
"transitions",
|
||||
"transforms",
|
||||
"browser"
|
||||
],
|
||||
"author": "Bartek Szopka",
|
||||
"license": "MIT",
|
||||
"bugs": {
|
||||
"url": "https://github.com/bartaz/impress.js/issues"
|
||||
},
|
||||
"scripts": {
|
||||
"lint": "jshint js/impress.js && jscs js/impress.js --preset=jquery"
|
||||
},
|
||||
"devDependencies": {
|
||||
"jscs": "2.11.0",
|
||||
"jshint": "2.9.1"
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user