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hopscotch-0.0.4.js
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hopscotch-0.0.4.js
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(function(context, namespace) {
var Hopscotch,
HopscotchBubble,
HopscotchCalloutManager,
HopscotchI18N,
utils,
callbacks,
winLoadHandler,
winHopscotch = context[namespace],
undefinedStr = 'undefined',
waitingToStart = false, // is a tour waiting for the document to finish
// loading so that it can start?
defaultOpts = {
animate: false,
smoothScroll: true,
scrollDuration: 1000,
scrollTopMargin: 200,
showCloseButton: true,
showPrevButton: false,
showNextButton: true,
bubbleWidth: 280,
bubblePadding: 15,
arrowWidth: 20,
skipIfNoElement: true,
cookieName: 'hopscotch.tour.state'
},
hasJquery = (typeof window.jQuery !== undefinedStr),
hasSessionStorage = (typeof window.sessionStorage !== undefinedStr),
docStyle = document.body.style,
hasCssTransitions = (typeof docStyle.MozTransition !== undefinedStr ||
typeof docStyle.MsTransition !== undefinedStr ||
typeof docStyle.webkitTransition !== undefinedStr ||
typeof docStyle.OTransition !== undefinedStr ||
typeof docStyle.transition !== undefinedStr);
if (winHopscotch) {
// Hopscotch already exists.
return;
}
/**
* Called when the page is done loading.
*
* @private
*/
winLoadHandler = function() {
if (waitingToStart) {
winHopscotch.startTour();
}
};
if (window.addEventListener) {
window.addEventListener('load', winLoadHandler, false);
}
else if (window.attachEvent) {
window.attachEvent('onload', winLoadHandler);
}
/**
* utils
* =====
* A set of utility functions, mostly for standardizing to manipulate
* and extract information from the DOM. Basically these are things I
* would normally use jQuery for, but I don't want to require it for
* this framework.
*
* @private
*/
utils = {
/**
* addClass
* ========
* Adds a class to a DOM element.
* Note: does not support adding multiple classes at once yet
*
* @private
*/
addClass: function(domEl, classToAdd) {
var domClasses,
i, len;
if (domEl.className.length === 0) {
domEl.className = classToAdd;
}
else {
domClasses = domEl.className.split(/\s+/);
for (i = 0, len = domClasses.length; i < len; ++i) {
if (domClasses[i] === classToAdd) {
return;
}
}
domClasses.splice(0, 0, classToAdd); // add new class to list
domEl.className = domClasses.join(' ');
}
},
/**
* removeClass
* ===========
* Remove a class from a DOM element.
* Note: this one DOES support removing multiple classes.
*
* @private
*/
removeClass: function(domEl, classToRemove) {
var domClasses,
classesToRemove,
currClass,
i,
j,
toRemoveLen,
domClassLen;
classesToRemove = classToRemove.split(/\s+/);
domClasses = domEl.className.split(/\s+/);
for (i = 0, toRemoveLen = classesToRemove.length; i < toRemoveLen; ++i) {
currClass = classesToRemove[i];
for (j = 0, domClassLen = domClasses.length; j < domClassLen; ++j) {
if (domClasses[j] === currClass) {
break;
}
}
if (j < domClassLen) {
domClasses.splice(j, 1); // remove class from list
}
}
domEl.className = domClasses.join(' ');
},
/**
* @private
*/
getPixelValue: function(val) {
var valType = typeof val;
if (valType === 'number') { return val; }
if (valType === 'string') { return parseInt(val, 10); }
return 0;
},
/**
* Inspired by Python... returns val if it's defined, otherwise returns the default.
*
* @private
*/
valOrDefault: function(val, valDefault) {
return typeof val !== undefinedStr ? val : valDefault;
},
/**
* @private
*/
invokeCallbacks: function(evtType, args) {
var cbArr = callbacks[evtType],
i = 0,
len = cbArr.length;
for (; i<len; ++i) {
cbArr[i].cb.apply(this, args);
}
},
/**
* @private
*/
getScrollTop: function() {
if (typeof window.pageYOffset !== undefinedStr) {
return window.pageYOffset;
}
else {
// Most likely IE <=8, which doesn't support pageYOffset
return document.documentElement.scrollTop;
}
},
/**
* @private
*/
getScrollLeft: function() {
if (typeof window.pageXOffset !== undefinedStr) {
return window.pageXOffset;
}
else {
// Most likely IE <=8, which doesn't support pageXOffset
return document.documentElement.scrollLeft;
}
},
/**
* @private
*/
getWindowHeight: function() {
return window.innerHeight ? window.innerHeight : document.documentElement.clientHeight;
},
/**
* @private
*/
getWindowWidth: function() {
return window.innerWidth ? window.innerWidth : document.documentElement.clientWidth;
},
/**
* @private
*/
addClickListener: function(el, fn) {
return el.addEventListener ? el.addEventListener('click', fn, false) : el.attachEvent('onclick', fn);
},
/**
* @private
*/
removeClickListener: function(el, fn) {
el.removeEventListener ? el.removeEventListener('click', fn, false) : el.detachEvent('click', fn);
},
/**
* @private
*/
evtPreventDefault: function(evt) {
if (evt.preventDefault) {
evt.preventDefault();
}
else if (event) {
event.returnValue = false;
}
},
/**
* @private
*/
extend: function(obj1, obj2) {
var prop;
for (prop in obj2) {
if (obj2.hasOwnProperty(prop)) {
obj1[prop] = obj2[prop];
}
}
},
/**
* @private
*/
getStepTarget: function(step) {
var result;
if (!step || !step.target) { return null; }
if (typeof step.target === 'string') {
// Check if it's querySelector-eligible. Only accepting IDs and classes,
// because that's the only thing that makes sense. Tag name and pseudo-class
// are just silly.
if (/[#\.].*/.test(step.target)) {
if (document.querySelector) {
return document.querySelector(step.target);
}
if (hasJquery) {
result = jQuery(step.target);
return result.length ? result[0] : null;
}
if (window.Sizzle) {
result = Sizzle(step.target);
return result.length ? result[0] : null;
}
if (step.target[0] === '#' && step.target.indexOf(' ') === -1) {
return document.getElementById(step.target.substring(1));
}
// Can't extract element. Likely IE <=7 and no jQuery/Sizzle.
return null;
}
// Else assume it's a string id.
return document.getElementById(step.target);
}
return step.target;
},
// Tour session persistence for multi-page tours. Uses HTML5 sessionStorage if available, then
// falls back to using cookies.
//
// The following cookie-related logic is borrowed from:
// http://www.quirksmode.org/js/cookies.html
/**
* @private
*/
setState: function(name,value,days) {
var expires = '',
date;
if (hasSessionStorage) {
sessionStorage.setItem(name, value);
}
else {
if (days) {
date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
expires = "; expires="+date.toGMTString();
}
document.cookie = name+"="+value+expires+"; path=/";
}
},
/**
* @private
*/
getState: function(name) {
var nameEQ = name + "=",
ca = document.cookie.split(';'),
i,
c;
if (hasSessionStorage) {
return sessionStorage.getItem(name);
}
else {
for(i=0;i < ca.length;i++) {
c = ca[i];
while (c.charAt(0)===' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) === 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
},
/**
* @private
*/
clearState: function(name) {
if (hasSessionStorage) {
sessionStorage.removeItem(name);
}
else {
this.setState(name,"",-1);
}
}
};
callbacks = {
next: [],
prev: [],
start: [],
end: [],
show: [],
error: [],
close: []
};
HopscotchI18N = {
stepNums: null,
nextBtn: 'Next',
prevBtn: 'Back',
doneBtn: 'Done',
skipBtn: 'Skip',
closeTooltip: 'Close'
};
/**
* HopscotchBubble
*
* @class The HopscotchBubble class represents the view of a bubble. This class is also used for Hopscotch callouts.
*/
HopscotchBubble = function(opt) {
this.init(opt);
};
HopscotchBubble.prototype = {
isShowing: false,
currStep: undefined,
/**
* Helper function for creating buttons in the bubble.
*
* @private
*/
_createButton: function(id, text) {
var btnEl = document.createElement('input');
btnEl.id = id;
btnEl.type = 'button';
btnEl.value = text;
utils.addClass(btnEl, 'hopscotch-nav-button');
if (id.indexOf('prev') >= 0) {
utils.addClass(btnEl, 'prev');
}
else {
utils.addClass(btnEl, 'next');
}
return btnEl;
},
/**
* setPosition
*
* Sets the position of the bubble using the bounding rectangle of the
* target element and the orientation and offset information specified by
* the JSON.
*/
setPosition: function(step) {
var bubbleWidth,
bubbleHeight,
bubblePadding,
boundingRect,
top,
left,
bubbleBorder = 6,
targetEl = utils.getStepTarget(step),
el = this.element,
arrowEl = this.arrowEl,
arrowOffset = utils.getPixelValue(step.arrowOffset);
bubbleWidth = utils.getPixelValue(step.width) || this.opt.bubbleWidth;
bubblePadding = utils.valOrDefault(step.padding, this.opt.bubblePadding);
utils.removeClass(el, 'fade-in-down fade-in-up fade-in-left fade-in-right');
// SET POSITION
boundingRect = targetEl.getBoundingClientRect();
if (step.orientation === 'top') {
bubbleHeight = el.offsetHeight;
top = (boundingRect.top - bubbleHeight) - this.opt.arrowWidth;
left = boundingRect.left;
}
else if (step.orientation === 'bottom') {
top = boundingRect.bottom + this.opt.arrowWidth;
left = boundingRect.left;
}
else if (step.orientation === 'left') {
top = boundingRect.top;
left = boundingRect.left - bubbleWidth - 2*bubblePadding - 2*bubbleBorder - this.opt.arrowWidth;
}
else if (step.orientation === 'right') {
top = boundingRect.top;
left = boundingRect.right + this.opt.arrowWidth;
}
// SET (OR RESET) ARROW OFFSETS
if (!arrowOffset) {
arrowEl.style.top = '';
arrowEl.style.left = '';
}
else if (step.orientation === 'top' || step.orientation === 'bottom') {
arrowEl.style.top = '';
arrowEl.style.left = arrowOffset + 'px';
}
else if (step.orientation === 'left' || step.orientation === 'right') {
arrowEl.style.left = '';
arrowEl.style.top = arrowOffset + 'px';
}
// SET OFFSETS
left += utils.getPixelValue(step.xOffset);
top += utils.getPixelValue(step.yOffset);
// ADJUST TOP FOR SCROLL POSITION
if (!step.fixedElement) {
top += utils.getScrollTop();
left += utils.getScrollLeft();
}
// ACCOUNT FOR FIXED POSITION ELEMENTS
el.style.position = (step.fixedElement ? 'fixed' : 'absolute');
if (this.opt.animate && hasJquery && !hasCssTransitions) {
$(el).animate({
top: top + 'px',
left: left + 'px'
});
}
else {
el.style.top = top + 'px';
el.style.left = left + 'px';
}
},
/**
* @private
*/
_initNavButtons: function() {
var buttonsEl = document.createElement('div');
this.prevBtnEl = this._createButton('hopscotch-prev', HopscotchI18N.prevBtn);
this.nextBtnEl = this._createButton('hopscotch-next', HopscotchI18N.nextBtn);
this.doneBtnEl = this._createButton('hopscotch-done', HopscotchI18N.doneBtn);
utils.addClass(this.doneBtnEl, 'hide');
buttonsEl.appendChild(this.prevBtnEl);
buttonsEl.appendChild(this.nextBtnEl);
buttonsEl.appendChild(this.doneBtnEl);
// Attach click listeners
utils.addClickListener(this.prevBtnEl, function(evt) {
winHopscotch.prevStep(true);
});
utils.addClickListener(this.nextBtnEl, function(evt) {
winHopscotch.nextStep(true);
});
utils.addClickListener(this.doneBtnEl, winHopscotch.endTour);
buttonsEl.className = 'hopscotch-actions';
this.buttonsEl = buttonsEl;
this.containerEl.appendChild(buttonsEl);
return this;
},
/*
* Define the close button callback here so that we have a handle on it
* for when we want to remove it (see HopscotchBubble.destroy).
*
* @private
*/
_getCloseFn: function() {
var self = this;
if (!this.closeFn) {
/**
* @private
*/
this.closeFn = function(evt) {
if (self.opt.id && !this.opt.isTourBubble) {
// Remove via the HopscotchCalloutManager.
// removeCallout() calls HopscotchBubble.destroy internally.
winHopscotch.getCalloutManager().removeCallout(self.opt.id);
}
else {
self.destroy();
}
if (evt.preventDefault) {
evt.preventDefault();
}
else if (event) {
event.returnValue = false;
}
};
}
return this.closeFn;
},
/**
* @private
*/
initCloseButton: function() {
var closeBtnEl = document.createElement('a');
closeBtnEl.className = 'hopscotch-bubble-close';
closeBtnEl.href = '#';
closeBtnEl.title = HopscotchI18N.closeTooltip;
closeBtnEl.innerHTML = HopscotchI18N.closeTooltip;
if (this.opt.isTourBubble) {
utils.addClickListener(closeBtnEl, function(evt) {
var currStepNum = winHopscotch.getCurrStepNum(),
currTour = winHopscotch.getCurrTour(),
doEndCallback = (currStepNum === currTour.steps.length-1);
utils.invokeCallbacks('close', [currTour.id, currStepNum]);
winHopscotch.endTour(true, doEndCallback);
if (evt.preventDefault) {
evt.preventDefault();
}
else if (event) {
event.returnValue = false;
}
});
}
else {
utils.addClickListener(closeBtnEl, this._getCloseFn());
}
this.closeBtnEl = closeBtnEl;
this.containerEl.appendChild(closeBtnEl);
return this;
},
/**
* @private
*/
_initArrow: function() {
var arrowEl,
arrowBorderEl;
this.arrowEl = document.createElement('div');
this.arrowEl.className = 'hopscotch-bubble-arrow-container';
arrowBorderEl = document.createElement('div');
arrowBorderEl.className = 'hopscotch-bubble-arrow-border';
arrowEl = document.createElement('div');
arrowEl.className = 'hopscotch-bubble-arrow';
this.arrowEl.appendChild(arrowBorderEl);
this.arrowEl.appendChild(arrowEl);
this.element.appendChild(this.arrowEl);
return this;
},
/**
* Renders the bubble according to the step JSON.
*
* @param {Object} step Information defining how the bubble should look.
* @param {Number} idx The index of the step in the tour. Not used for callouts.
* @param {Boolean} isLast Flag indicating if the step is the last in the tour. Not used for callouts.
* @param {Function} callback Function to be invoked after rendering is finished.
*/
render: function(step, idx, isLast, callback) {
var self = this,
showNext,
showPrev,
bubbleWidth,
bubblePadding;
if (step) {
this.currStep = step;
}
else if (this.currStep) {
step = this.currStep;
}
showNext = utils.valOrDefault(step.showNextButton, this.opt.showNextButton),
showPrev = utils.valOrDefault(step.showPrevButton, this.opt.showPrevButton),
this.setTitle(step.title ? step.title : '');
this.setContent(step.content ? step.content : '');
if (this.opt.showNumber) {
this.setNum(idx);
}
this.orientation = step.orientation;
if (this.opt.showNavButtons) {
this.showPrevButton(this.prevBtnEl && showPrev && idx > 0);
this.showNextButton(this.nextBtnEl && showNext && !isLast);
this.nextBtnEl.value = step.showSkip ? HopscotchI18N.skipBtn : HopscotchI18N.nextBtn;
if (isLast) {
utils.removeClass(this.doneBtnEl, 'hide');
}
else {
utils.addClass(this.doneBtnEl, 'hide');
}
}
this._setArrow(step.orientation);
// Set dimensions
bubbleWidth = utils.getPixelValue(step.width) || this.opt.bubbleWidth;
bubblePadding = utils.valOrDefault(step.padding, this.opt.bubblePadding);
this.containerEl.style.width = bubbleWidth + 'px';
this.containerEl.style.padding = bubblePadding + 'px';
this.element.style.zIndex = (step.zindex ? step.zindex : '');
if (step.orientation === 'top') {
// Timeout to get correct height of bubble for positioning.
setTimeout(function() {
self.setPosition(step);
// only want to adjust window scroll for non-fixed elements
if (callback && !step.fixedElement) {
callback();
}
else {
self.show();
}
}, 5);
}
else {
// Don't care about height for the other orientations.
this.setPosition(step);
// only want to adjust window scroll for non-fixed elements
if (callback && !step.fixedElement) {
callback();
}
else {
self.show();
}
}
return this;
},
setTitle: function(titleStr) {
if (titleStr) {
this.titleEl.innerHTML = titleStr;
utils.removeClass(this.titleEl, 'hide');
}
else {
utils.addClass(this.titleEl, 'hide');
}
return this;
},
setContent: function(contentStr) {
// CAREFUL!! Using innerHTML, so don't use any user-generated
// content here. (or if you must, escape it first)
if (contentStr) {
this.contentEl.innerHTML = contentStr;
utils.removeClass(this.contentEl, 'hide');
}
else {
utils.addClass(this.contentEl, 'hide');
}
return this;
},
setNum: function(idx) {
if (HopscotchI18N.stepNums && idx < HopscotchI18N.stepNums.length) {
idx = HopscotchI18N.stepNums[idx];
}
else {
idx = idx + 1;
}
this.numberEl.innerHTML = idx;
},
/**
* Sets which side the arrow is on.
*
* @private
*/
_setArrow: function(orientation) {
utils.removeClass(this.arrowEl, 'down up right left');
// Whatever the orientation is, we want to arrow to appear
// "opposite" of the orientation. E.g., a top orientation
// requires a bottom arrow.
if (orientation === 'top') {
utils.addClass(this.arrowEl, 'down');
}
else if (orientation === 'bottom') {
utils.addClass(this.arrowEl, 'up');
}
else if (orientation === 'left') {
utils.addClass(this.arrowEl, 'right');
}
else if (orientation === 'right') {
utils.addClass(this.arrowEl, 'left');
}
},
/**
* @private
*/
_getArrowDirection: function() {
if (this.orientation === 'top') {
return 'down';
}
if (this.orientation === 'bottom') {
return 'up';
}
if (this.orientation === 'left') {
return 'right';
}
if (this.orientation === 'right') {
return 'left';
}
},
show: function() {
var self = this,
className = 'fade-in-' + this._getArrowDirection(),
fadeDur = 1000;
utils.removeClass(this.element, 'hide');
if (this.opt.animate) {
setTimeout(function() {
utils.addClass(self.element, 'animate');
}, 50);
}
else {
utils.addClass(this.element, className);
setTimeout(function() {
utils.removeClass(self.element, 'invisible');
}, 50);
setTimeout(function() {
utils.removeClass(self.element, className);
}, fadeDur);
}
this.isShowing = true;
return this;
},
hide: function(remove) {
var el = this.element;
remove = utils.valOrDefault(remove, true);
el.style.top = '';
el.style.left = '';
// display: none
if (remove) {
utils.addClass(el, 'hide');
utils.removeClass(el, 'invisible');
}
// opacity: 0
else {
utils.removeClass(el, 'hide');
if (!this.opt.animate) {
utils.addClass(el, 'invisible');
}
}
utils.removeClass(el, 'animate fade-in-up fade-in-down fade-in-right fade-in-left');
this.isShowing = false;
return this;
},
/**
* @private
*/
_showButton: function(btnEl, show, permanent) {
var classname = 'hide';
if (permanent) {
// permanent is a flag that indicates we should never show the button
classname = 'hide-all';
}
if (typeof show === undefinedStr) {
show = true;
}
if (show) { utils.removeClass(btnEl, classname); }
else { utils.addClass(btnEl, classname); }
},
showPrevButton: function(show, permanent) {
this._showButton(this.prevBtnEl, show, permanent);
},
showNextButton: function(show, permanent) {
this._showButton(this.nextBtnEl, show, permanent);
},
showCloseButton: function(show, permanent) {
this._showButton(this.closeBtnEl, show, permanent);
},
/**
* _initAnimate
* ===========
* This function exists due to how Chrome handles initial CSS transitions.
* Most other browsers will not animate a transition until the element
* exists on the page. Chrome treats DOM elements as starting from the
* (0, 0) position, and will animate from the upper left corner on creation
* of the DOM element. (e.g., if you create a new DOM element using
* Javascript and specify CSS top: 100px, left: 50px, then append the
* DOM element to the document.body, it will create it at 0, 0 and then
* animate it to 50, 100)
*
* Solution is to add the animate class (which defines our transition)
* only after the element is created.
*
* @private
*/
_initAnimate: function() {
var self = this;
setTimeout(function() {
utils.addClass(self.element, 'animate');
}, 50);
},
/**
* @private
*/
_removeAnimate: function() {
utils.removeClass(this.element, 'animate');
},
destroy: function() {
var el = this.element;
el.parentNode.removeChild(el);
utils.removeClickListener(this.closeBtnEl, this._getCloseFn());
},
init: function(initOpt) {
var el = document.createElement('div'),
containerEl = document.createElement('div'),
bubbleContentEl = document.createElement('div'),
self = this,
resizeCooldown = false, // for updating after window resize
onWinResize,
winResizeTimeout;
this.element = el;
this.containerEl = containerEl;
this.titleEl = document.createElement('h3');
this.contentEl = document.createElement('p');
opt = {
animate: defaultOpts.animate,
showPrevButton: defaultOpts.showPrevButton,
showNextButton: defaultOpts.showNextButton,
bubbleWidth: defaultOpts.bubbleWidth,
bubblePadding: defaultOpts.bubblePadding,
arrowWidth: defaultOpts.arrowWidth,
showNumber: true,
showNavButtons: true,
isTourBubble: true
};
initOpt = (typeof initOpt === undefinedStr ? {} : initOpt);
utils.extend(opt, initOpt);
this.opt = opt;
el.className = 'hopscotch-bubble animated'; // "animated" for fade css animation
containerEl.className = 'hopscotch-bubble-container';
if (opt.showNumber) {
this.numberEl = document.createElement('span');
this.numberEl.className = 'hopscotch-bubble-number';
containerEl.appendChild(this.numberEl);
}
else {
utils.addClass(el, 'no-number');
}
bubbleContentEl.appendChild(this.titleEl);
bubbleContentEl.appendChild(this.contentEl);
bubbleContentEl.className = 'hopscotch-bubble-content';
containerEl.appendChild(bubbleContentEl);
el.appendChild(containerEl);
if (opt.showNavButtons) {
this._initNavButtons();
}
this.initCloseButton();
this._initArrow();
/**
* Not pretty, but IE doesn't support Function.bind(), so I'm
* relying on closures to keep a handle of "this".
* Reset position of bubble when window is resized
*
* @private
*/
onWinResize = function() {
if (resizeCooldown || !self.isShowing) {
return;
}
resizeCooldown = true;
winResizeTimeout = setTimeout(function() {
self.setPosition(self.currStep);
resizeCooldown = false;
}, 100);
};
if (window.addEventListener) {
window.addEventListener('resize', onWinResize, false);
}
else if (window.attachEvent) {
window.attachEvent('onresize', onWinResize, false);
}
this.hide();
document.body.appendChild(el);
}
};
/**
* HopscotchCalloutManager
*
* @class Manages the creation and destruction of single callouts.
* @constructor
*/
HopscotchCalloutManager = function() {
var callouts = {};
/**
* createCallout
*
* Creates a standalone callout. This callout has the same API
* as a Hopscotch tour bubble.
*
* @param {Object} opt The options for the callout. For the most
* part, these are the same options as you would find in a tour
* step.
*/
this.createCallout = function(opt) {
var callout;
if (opt.id) {
opt.isTourBubble = false;
callout = new HopscotchBubble(opt);
callouts[opt.id] = callout;
if (opt.target) {
callout.render(opt);
}
}
else {
throw "Must specify a callout id.";
}
};