(function($) {
'use strict';
var has3d,
vendor ='',
PI = Math.PI,
A90 = PI/2,
isTouch = 'ontouchstart' in window,
events = (isTouch) ? {start: 'touchstart', move: 'touchmove', end: 'touchend'}
: {start: 'mousedown', move: 'mousemove', end: 'mouseup'},
corners = {
backward: ['bl', 'tl'],
forward: ['br', 'tr'],
all: ['tl', 'bl', 'tr', 'br']
},
displays = ['single', 'double'],
turnOptions = {
page: 1,
gradients: true,
duration: 600,
acceleration: true,
display: 'double',
when: null
},
flipOptions = {
folding: null,
corners: 'forward',
cornerSize: 100,
gradients: true,
duration: 600,
acceleration: true
},
pagesInDOM = 6,
pagePosition = {0: {top: 0, left: 0, right: 'auto', bottom: 'auto'},
1: {top: 0, right: 0, left: 'auto', bottom: 'auto'}},
divAtt = function(top, left, zIndex, overf) {
return {'css': {
position: 'absolute',
top: top,
left: left,
'overflow': overf || 'hidden',
'z-index': zIndex || 'auto'
}
};
},
// Gets a 2D point from a bezier curve of four points
bezier = function(p1, p2, p3, p4, t) {
var mum1 = 1 - t,
mum13 = mum1 * mum1 * mum1,
mu3 = t * t * t;
return point2D(Math.round(mum13*p1.x + 3*t*mum1*mum1*p2.x + 3*t*t*mum1*p3.x + mu3*p4.x),
Math.round(mum13*p1.y + 3*t*mum1*mum1*p2.y + 3*t*t*mum1*p3.y + mu3*p4.y));
},
// Converts an angle from degrees to radians
rad = function(degrees) {
return degrees/180*PI;
},
// Converts an angle from radians to degrees
deg = function(radians) {
return radians/PI*180;
},
// Gets a 2D point
point2D = function(x, y) {
return {x: x, y: y};
},
// Returns the translate value
translate = function(x, y, use3d) {
return (has3d && use3d) ? ' translate3d(' + x + 'px,' + y + 'px, 0px) ' : ' translate(' + x + 'px, ' + y + 'px) ';
},
// Returns the rotation value
rotate = function(degrees) {
return ' rotate(' + degrees + 'deg) ';
},
// Checks if a property belongs to an object
has = function(property, object) {
return Object.prototype.hasOwnProperty.call(object, property);
},
// Gets the CSS3 vendor prefix
getPrefix = function() {
var vendorPrefixes = ['Moz','Webkit','Khtml','O','ms'],
len = vendorPrefixes.length,
vendor = '';
while (len--)
if ((vendorPrefixes[len] + 'Transform') in document.body.style)
vendor='-'+vendorPrefixes[len].toLowerCase()+'-';
return vendor;
},
// Adds gradients
gradient = function(obj, p0, p1, colors, numColors) {
var j, cols = [];
if (vendor=='-webkit-') {
for (j = 0; j<numColors; j++)
cols.push('color-stop('+colors[j][0]+', '+colors[j][1]+')');
obj.css({'background-image': '-webkit-gradient(linear, '+p0.x+'% '+p0.y+'%, '+p1.x+'% '+p1.y+'%, '+ cols.join(',') +' )'});
} else {
// This procedure makes the gradients for non-webkit browsers
// It will be reduced to one unique way for gradients in next versions
p0 = {x:p0.x/100 * obj.width(), y:p0.y/100 * obj.height()};
p1 = {x:p1.x/100 * obj.width(), y:p1.y/100 * obj.height()};
var dx = p1.x-p0.x,
dy = p1.y-p0.y,
angle = Math.atan2(dy, dx),
angle2 = angle - Math.PI/2,
diagonal = Math.abs(obj.width()*Math.sin(angle2)) + Math.abs(obj.height()*Math.cos(angle2)),
gradientDiagonal = Math.sqrt(dy*dy + dx*dx),
corner = point2D((p1.x<p0.x) ? obj.width() : 0, (p1.y<p0.y) ? obj.height() : 0),
slope = Math.tan(angle),
inverse = -1/slope,
x = (inverse*corner.x - corner.y - slope*p0.x + p0.y) / (inverse-slope),
c = {x: x, y: inverse*x - inverse*corner.x + corner.y},
segA = (Math.sqrt( Math.pow(c.x-p0.x,2) + Math.pow(c.y-p0.y,2)));
for (j = 0; j<numColors; j++)
cols.push(' '+colors[j][1]+' '+(( segA + gradientDiagonal*colors[j][0] )*100/diagonal)+'%');
obj.css({'background-image': vendor+'linear-gradient(' + (-angle) + 'rad,' + cols.join(',') + ')'});
}
},
turnMethods = {
// Singleton constructor
// $('#selector').turn([options]);
init: function(opts) {
// Define constants
if (has3d===undefined) {
has3d = 'WebKitCSSMatrix' in window || 'MozPerspective' in document.body.style;
vendor = getPrefix();
}
var i, data = this.data(), ch = this.children();
opts = $.extend({width: this.width(), height: this.height()}, turnOptions, opts);
data.opts = opts;
data.pageObjs = {};
data.pages = {};
data.pageWrap = {};
data.pagePlace = {};
data.pageMv = [];
data.totalPages = opts.pages || 0;
if (opts.when)
for (i in opts.when)
if (has(i, opts.when))
this.bind(i, opts.when[i]);
this.css({position: 'relative', width: opts.width, height: opts.height});
this.turn('display', opts.display);
if (has3d && !isTouch && opts.acceleration)
this.transform(translate(0, 0, true));
for (i = 0; i<ch.length; i++)
this.turn('addPage', ch[i], i+1);
this.turn('page', opts.page);
// allow setting active corners as an option
corners = $.extend({}, corners, opts.corners);
// Event listeners
$(this).bind(events.start, function(e) {
for (var page in data.pages)
if (has(page, data.pages) && flipMethods._eventStart.call(data.pages[page], e)===false)
return false;
});
$(document).bind(events.move, function(e) {
for (var page in data.pages)
if (has(page, data.pages))
flipMethods._eventMove.call(data.pages[page], e);
}).
bind(events.end, function(e) {
for (var page in data.pages)
if (has(page, data.pages))
flipMethods._eventEnd.call(data.pages[page], e);
});
data.done = true;
return this;
},
// Adds a page from external data
addPage: function(element, page) {
var incPages = false,
data = this.data(),
lastPage = data.totalPages+1;
if (page) {
if (page==lastPage) {
page = lastPage;
incPages = true;
} else if (page>lastPage)
throw new Error ('It is impossible to add the page "'+page+'", the maximum value is: "'+lastPage+'"');
} else {
page = lastPage;
incPages = true;
}
if (page>=1 && page<=lastPage) {
// Stop animations
if (data.done) this.turn('stop');
// Move pages if it's necessary
if (page in data.pageObjs)
turnMethods._movePages.call(this, page, 1);
// Update number of pages
if (incPages)
data.totalPages = lastPage;
// Add element
data.pageObjs[page] = $(element).addClass('turn-page p' + page);
// Add page
turnMethods._addPage.call(this, page);
// Update view
if (data.done)
this.turn('update');
turnMethods._removeFromDOM.call(this);
}
return this;
},
// Adds a page from internal data
_addPage: function(page) {
var data = this.data(),
element = data.pageObjs[page];
if (element)
if (turnMethods._necessPage.call(this, page)) {
if (!data.pageWrap[page]) {
var pageWidth = (data.display=='double') ? this.width()/2 : this.width(),
pageHeight = this.height();
element.css({width:pageWidth, height:pageHeight});
// Place
data.pagePlace[page] = page;
// Wrapper
data.pageWrap[page] = $('<div/>', {'class': 'turn-page-wrapper',
page: page,
css: {position: 'absolute',
overflow: 'hidden',
width: pageWidth,
height: pageHeight}}).
css(pagePosition[(data.display=='double') ? page%2 : 0]);
// Append to this
this.append(data.pageWrap[page]);
// Move data.pageObjs[page] (element) to wrapper
data.pageWrap[page].prepend(data.pageObjs[page]);
}
// If the page is in the current view, create the flip effect
if (!page || turnMethods._setPageLoc.call(this, page)==1)
turnMethods._makeFlip.call(this, page);
} else {
// Place
data.pagePlace[page] = 0;
// Remove element from the DOM
if (data.pageObjs[page])
data.pageObjs[page].remove();
}
},
// Checks if a page is in memory
hasPage: function(page) {
return page in this.data().pageObjs;
},
// Prepares the flip effect for a page
_makeFlip: function(page) {
var data = this.data();
if (!data.pages[page] && data.pagePlace[page]==page) {
var single = data.display=='single',
even = page%2;
data.pages[page] = data.pageObjs[page].
css({width: (single) ? this.width() : this.width()/2, height: this.height()}).
flip({page: page,
next: (single && page === data.totalPages) ? page -1 : ((even || single) ? page+1 : page-1),
turn: this,
duration: data.opts.duration,
acceleration : data.opts.acceleration,
corners: (single) ? 'all' : ((even) ? 'forward' : 'backward'),
backGradient: data.opts.gradients,
frontGradient: data.opts.gradients
}).
flip('disable', data.disabled).
bind('pressed', turnMethods._pressed).
bind('released', turnMethods._released).
bind('start', turnMethods._start).
bind('end', turnMethods._end).
bind('flip', turnMethods._flip);
}
return data.pages[page];
},
// Makes pages within a range
_makeRange: function() {
var page,
data = this.data(),
range = this.turn('range');
for (page = range[0]; page<=range[1]; page++)
turnMethods._addPage.call(this, page);
},
// Returns a range of `pagesInDOM` pages that should be in the DOM
// Example:
// - page of the current view, return true
// * page is in the range, return true
// 0 page is not in the range, return false
//
// 1 2-3 4-5 6-7 8-9 10-11 12-13
// ** ** -- ** **
range: function(page) {
var remainingPages, left, right,
data = this.data();
page = page || data.tpage || data.page;
var view = turnMethods._view.call(this, page);
if (page<1 || page>data.totalPages)
throw new Error ('"'+page+'" is not a page for range');
view[1] = view[1] || view[0];
if (view[0]>=1 && view[1]<=data.totalPages) {
remainingPages = Math.floor((pagesInDOM-2)/2);
if (data.totalPages-view[1] > view[0]) {
left = Math.min(view[0]-1, remainingPages);
right = 2*remainingPages-left;
} else {
right = Math.min(data.totalPages-view[1], remainingPages);
left = 2*remainingPages-right;
}
} else {
left = pagesInDOM-1;
right = pagesInDOM-1;
}
return [Math.max(1, view[0]-left), Math.min(data.totalPages, view[1]+right)];
},
// Detects if a page is within the range of `pagesInDOM` from the current view
_necessPage: function(page) {
if (page===0)
return true;
var range = this.turn('range');
return page>=range[0] && page<=range[1];
},
// Releases memory by removing pages from the DOM
_removeFromDOM: function() {
var page, data = this.data();
for (page in data.pageWrap)
if (has(page, data.pageWrap) && !turnMethods._necessPage.call(this, page))
turnMethods._removePageFromDOM.call(this, page);
},
// Removes a page from DOM and its internal references
_removePageFromDOM: function(page) {
var data = this.data();
if (data.pages[page]) {
var dd = data.pages[page].data();
if (dd.f && dd.f.fwrapper)
dd.f.fwrapper.remove();
data.pages[page].remove();
delete data.pages[page];
}
if (data.pageObjs[page])
data.pageObjs[page].remove();
if (data.pageWrap[page]) {
data.pageWrap[page].remove();
delete data.pageWrap[page];
}
delete data.pagePlace[page];
},
// Removes a page
removePage: function(page) {
var data = this.data();
if (data.pageObjs[page]) {
// Stop animations
this.turn('stop');
// Remove `page`
turnMethods._removePageFromDOM.call(this, page);
delete data.pageObjs[page];
// Move the pages behind `page`
turnMethods._movePages.call(this, page, -1);
// Resize the size of this magazine
data.totalPages = data.totalPages-1;
turnMethods._makeRange.call(this);
// Check the current view
if (data.page>data.totalPages)
this.turn('page', data.totalPages);
}
return this;
},
// Moves pages
_movePages: function(from, change) {
var page,
data = this.data(),
single = data.display=='single',
move = function(page) {
var next = page + change,
odd = next%2;
if (data.pageObjs[page])
data.pageObjs[next] = data.pageObjs[page].removeClass('page' + page).addClass('page' + next);
if (data.pagePlace[page] && data.pageWrap[page]) {
data.pagePlace[next] = next;
data.pageWrap[next] = data.pageWrap[page].css(pagePosition[(single) ? 0 : odd]).attr('page', next);
if (data.pages[page])
data.pages[next] = data.pages[page].flip('options', {
page: next,
next: (single || odd) ? next+1 : next-1,
corners: (single) ? 'all' : ((odd) ? 'forward' : 'backward')
});
if (change) {
delete data.pages[page];
delete data.pagePlace[page];
delete data.pageObjs[page];
delete data.pageWrap[page];
delete data.pageObjs[page];
}
}
};
if (change>0)
for (page=data.totalPages; page>=from; page--) move(page);
else
for (page=from; page<=data.totalPages; page++) move(page);
},
// Sets or Gets the display mode
display: function(display) {
var data = this.data(),
currentDisplay = data.display;
if (display) {
if ($.inArray(display, displays)==-1)
throw new Error ('"'+display + '" is not a value for display');
if (display=='single') {
if (!data.pageObjs[0]) {
this.turn('stop').
css({'overflow': 'hidden'});
data.pageObjs[0] = $('<div />', {'class': 'turn-page p-temporal'}).
css({width: this.width(), height: this.height()}).
appendTo(this);
}
} else {
if (data.pageObjs[0]) {
this.turn('stop').
css({'overflow': ''});
data.pageObjs[0].remove();
delete data.pageObjs[0];
}
}
data.display = display;
if (currentDisplay) {
var size = this.turn('size');
turnMethods._movePages.call(this, 1, 0);
this.turn('size', size.width, size.height).
turn('update');
}
return this;
} else
return currentDisplay;
},
// Detects if the pages are being animated
animating: function() {
return this.data().pageMv.length>0;
},
// Disables and enables the effect
disable: function(bool) {
var page,
data = this.data(),
view = this.turn('view');
data.disabled = bool===undefined || bool===true;
for (page in data.pages)
if (has(page, data.pages))
data.pages[page].flip('disable', bool ? $.inArray(page, view) : false );
return this;
},
// Gets and sets the size
size: function(width, height) {
if (width && height) {
var data = this.data(), pageWidth = (data.display=='double') ? width/2 : width, page;
this.css({width: width, height: height});
if (data.pageObjs[0])
data.pageObjs[0].css({width: pageWidth, height: height});
for (page in data.pageWrap) {
if (!has(page, data.pageWrap)) continue;
data.pageObjs[page].css({width: pageWidth, height: height});
data.pageWrap[page].css({width: pageWidth, height: height});
if (data.pages[page])
data.pages[page].css({width: pageWidth, height: height});
}
this.turn('resize');
return this;
} else {
return {width: this.width(), height: this.height()};
}
},
// Resizes each page
resize: function() {
var page, data = this.data();
if (data.pages[0]) {
data.pageWrap[0].css({left: -this.width()});
data.pages[0].flip('resize', true);
}
for (page = 1; page <= data.totalPages; page++)
if (data.pages[page])
data.pages[page].flip('resize', true);
},
// Removes an animation from the cache
_removeMv: function(page) {
var i, data = this.data();
for (i=0; i<data.pageMv.length; i++)
if (data.pageMv[i]==page) {
data.pageMv.splice(i, 1);
return true;
}
return false;
},
// Adds an animation to the cache
_addMv: function(page) {
var data = this.data();
turnMethods._removeMv.call(this, page);
data.pageMv.push(page);
},
// Gets indexes for a view
_view: function(page) {
var data = this.data();
page = page || data.page;
if (data.display=='double')
return (page%2) ? [page-1, page] : [page, page+1];
else
return [page];
},
// Gets a view
view: function(page) {
var data = this.data(), view = turnMethods._view.call(this, page);
return (data.display=='double') ? [(view[0]>0) ? view[0] : 0, (view[1]<=data.totalPages) ? view[1] : 0]
: [(view[0]>0 && view[0]<=data.totalPages) ? view[0] : 0];
},
// Stops animations
stop: function(ok) {
var i, opts, data = this.data(), pages = data.pageMv;
data.pageMv = [];
if (data.tpage) {
data.page = data.tpage;
delete data['tpage'];
}
for (i in pages) {
if (!has(i, pages)) continue;
opts = data.pages[pages[i]].data().f.opts;
flipMethods._moveFoldingPage.call(data.pages[pages[i]], null);
data.pages[pages[i]].flip('hideFoldedPage');
data.pagePlace[opts.next] = opts.next;
if (opts.force) {
opts.next = (opts.page%2===0) ? opts.page-1 : opts.page+1;
delete opts['force'];
}
}
this.turn('update');
return this;
},
// Gets and sets the number of pages
pages: function(pages) {
var data = this.data();
if (pages) {
if (pages<data.totalPages) {
for (var page = pages+1; page<=data.totalPages; page++)
this.turn('removePage', page);
if (this.turn('page')>pages)
this.turn('page', pages);
}
data.totalPages = pages;
return this;
} else
return data.totalPages;
},
// Sets a page without effect
_fitPage: function(page, ok) {
var data = this.data(), newView = this.turn('view', page);
if (data.page!=page) {
this.trigger('turning', [page, newView]);
if ($.inArray(1, newView)!=-1) this.trigger('first');
if ($.inArray(data.totalPages, newView)!=-1) this.trigger('last');
}
if (!data.pageObjs[page])
return;
data.tpage = page;
this.turn('stop', ok);
turnMethods._removeFromDOM.call(this);
turnMethods._makeRange.call(this);
this.trigger('turned', [page, newView]);
},
// Turns to a page
_turnPage: function(page) {
var current, next,
data = this.data(),
view = this.turn('view'),
newView = this.turn('view', page);
if (data.page!=page) {
this.trigger('turning', [page, newView]);
if ($.inArray(1, newView)!=-1) this.trigger('first');
if ($.inArray(data.totalPages, newView)!=-1) this.trigger('last');
}
if (!data.pageObjs[page])
return;
data.tpage = page;
this.turn('stop');
turnMethods._makeRange.call(this);
if (data.display=='single') {
current = view[0];
next = newView[0];
} else if (view[1] && page>view[1]) {
current = view[1];
next = newView[0];
} else if (view[0] && page<view[0]) {
current = view[0];
next = newView[1];
}
if (data.pages[current]) {
var opts = data.pages[current].data().f.opts;
data.tpage = next;
if (opts.next!=next) {
opts.next = next;
data.pagePlace[next] = opts.page;
opts.force = true;
}
if (data.display=='single')
data.pages[current].flip('turnPage', (newView[0] > view[0]) ? 'br' : 'bl');
else
data.pages[current].flip('turnPage');
}
},
// Gets and sets a page
page: function(page) {
page = parseInt(page, 10);
var data = this.data();
if (page>0 && page<=data.totalPages) {
if (!data.done || $.inArray(page, this.turn('view'))!=-1)
turnMethods._fitPage.call(this, page);
else
turnMethods._turnPage.call(this, page);
return this;
} else
return data.page;
},
// Turns to the next view
next: function() {
var data = this.data();
return this.turn('page', turnMethods._view.call(this, data.page).pop() + 1);
},
// Turns to the previous view
previous: function() {
var data = this.data();
return this.turn('page', turnMethods._view.call(this, data.page).shift() - 1);
},
// Adds a motion to the internal list
_addMotionPage: function() {
var opts = $(this).data().f.opts,
turn = opts.turn,
dd = turn.data();
opts.pageMv = opts.page;
turnMethods._addMv.call(turn, opts.pageMv);
dd.pagePlace[opts.next] = opts.page;
turn.turn('update');
},
// This event is called in context of flip
_start: function(e, opts, corner) {
var data = opts.turn.data(),
event = $.Event('start');
e.stopPropagation();
opts.turn.trigger(event, [opts, corner]);
if (event.isDefaultPrevented()) {
e.preventDefault();
return;
}
if (data.display=='single') {
var left = corner.charAt(1)=='l';
if ((opts.page==1 && left) || (opts.page==data.totalPages && !left))
e.preventDefault();
else {
if (left) {
opts.next = (opts.next<opts.page) ? opts.next : opts.page-1;
opts.force = true;
} else
opts.next = (opts.next>opts.page) ? opts.next : opts.page+1;
}
}
turnMethods._addMotionPage.call(this);
},
// This event is called in context of flip
_end: function(e, turned) {
var that = $(this),
data = that.data().f,
opts = data.opts,
turn = opts.turn,
dd = turn.data();
e.stopPropagation();
if (turned || dd.tpage) {
if (dd.tpage==opts.next || dd.tpage==opts.page) {
delete dd['tpage'];
turnMethods._fitPage.call(turn, dd.tpage || opts.next, true);
}
} else {
turnMethods._removeMv.call(turn, opts.pageMv);
turn.turn('update');
}
},
// This event is called in context of flip
_pressed: function() {
var page,
that = $(this),
data = that.data().f,
turn = data.opts.turn,
pages = turn.data().pages;
for (page in pages)
if (page!=data.opts.page)
pages[page].flip('disable', true);
return data.time = new Date().getTime();
},
// This event is called in context of flip
_released: function(e, point) {
var that = $(this),
data = that.data().f;
e.stopPropagation();
if ((new Date().getTime())-data.time<200 || point.x<0 || point.x>$(this).width()) {
e.preventDefault();
data.opts.turn.data().tpage = data.opts.next;
data.opts.turn.turn('update');
$(that).flip('turnPage');
}
},
// This event is called in context of flip
_flip: function() {
var opts = $(this).data().f.opts;
opts.turn.trigger('turn', [opts.next]);
},
// Calculate the z-index value for pages during the animation
calculateZ: function(mv) {
var i, page, nextPage, placePage, dpage,
that = this,
data = this.data(),
view = this.turn('view'),
currentPage = view[0] || view[1],
r = {pageZ: {}, partZ: {}, pageV: {}},
addView = function(page) {
var view = that.turn('view', page);
if (view[0]) r.pageV[view[0]] = true;
if (view[1]) r.pageV[view[1]] = true;
};
for (i = 0; i<mv.length; i++) {
page = mv[i];
nextPage = data.pages[page].data().f.opts.next;
placePage = data.pagePlace[page];
addView(page);
addView(nextPage);
dpage = (data.pagePlace[nextPage]==nextPage) ? nextPage : page;
r.pageZ[dpage] = data.totalPages - Math.abs(currentPage-dpage);
r.partZ[placePage] = data.totalPages*2 + Math.abs(currentPage-dpage);
}
return r;
},
// Updates the z-index and display property of every page
update: function() {
var page,
data = this.data();
if (data.pageMv.length && data.pageMv[0]!==0) {
// Update motion
var apage,
pos = this.turn('calculateZ', data.pageMv),
view = this.turn('view', data.tpage);
if (data.pagePlace[view[0]]==view[0]) apage = view[0];
else if (data.pagePlace[view[1]]==view[1]) apage = view[1];
for (page in data.pageWrap) {
if (!has(page, data.pageWrap)) continue;
data.pageWrap[page].css({display: (pos.pageV[page]) ? '' : 'none', 'z-index': pos.pageZ[page] || 0});
if (data.pages[page]) {
data.pages[page].flip('z', pos.partZ[page] || null);
if (pos.pageV[page])
data.pages[page].flip('resize');
if (data.tpage)
data.pages[page].flip('disable', true); // data.disabled || page!=apage
}
}
} else {
// Update static pages
for (page in data.pageWrap) {
if (!has(page, data.pageWrap)) continue;
var pageLocation = turnMethods._setPageLoc.call(this, page);
if (data.pages[page])
data.pages[page].flip('disable', data.disabled || pageLocation!=1).flip('z', null);
}
}
},
// Sets the z-index and display property of a page
// It depends on the current view
_setPageLoc: function(page) {
var data = this.data(),
view = this.turn('view');
if (page==view[0] || page==view[1]) {
data.pageWrap[page].css({'z-index': data.totalPages, display: ''});
return 1;
} else if ((data.display=='single' && page==view[0]+1) || (data.display=='double' && page==view[0]-2 || page==view[1]+2)) {
data.pageWrap[page].css({'z-index': data.totalPages-1, display: ''});
return 2;
} else {
data.pageWrap[page].css({'z-index': 0, display: 'none'});
return 0;
}
}
},
// Methods and properties for the flip page effect
flipMethods = {
// Constructor
init: function(opts) {
if (opts.gradients) {
opts.frontGradient = true;
opts.backGradient = true;
}
this.data({f: {}});
this.flip('options', opts);
flipMethods._addPageWrapper.call(this);
return this;
},
setData: function(d) {
var data = this.data();
data.f = $.extend(data.f, d);
return this;
},
options: function(opts) {
var data = this.data().f;
if (opts) {
flipMethods.setData.call(this, {opts: $.extend({}, data.opts || flipOptions, opts) });
return this;
} else
return data.opts;
},
z: function(z) {
var data = this.data().f;
data.opts['z-index'] = z;
data.fwrapper.css({'z-index': z || parseInt(data.parent.css('z-index'), 10) || 0});
return this;
},
_cAllowed: function() {
return corners[this.data().f.opts.corners] || this.data().f.opts.corners;
},
_cornerActivated: function(e) {
if (e.originalEvent === undefined) {
return false;
}
e = (isTouch) ? e.originalEvent.touches : [e];
var data = this.data().f,
pos = data.parent.offset(),
width = this.width(),
height = this.height(),
c = {x: Math.max(0, e[0].pageX-pos.left), y: Math.max(0, e[0].pageY-pos.top)},
csz = data.opts.cornerSize,
allowedCorners = flipMethods._cAllowed.call(this);
if (c.x<=0 || c.y<=0 || c.x>=width || c.y>=height) return false;
if (c.y<csz) c.corner = 't';
else if (c.y>=height-csz) c.corner = 'b';
else return false;
if (c.x<=csz) c.corner+= 'l';
else if (c.x>=width-csz) c.corner+= 'r';
else return false;
return ($.inArray(c.corner, allowedCorners)==-1) ? false : c;
},
_c: function(corner, opts) {
opts = opts || 0;
return ({tl: point2D(opts, opts),
tr: point2D(this.width()-opts, opts),
bl: point2D(opts, this.height()-opts),
br: point2D(this.width()-opts, this.height()-opts)})[corner];
},
_c2: function(corner) {
return {tl: point2D(this.width()*2, 0),
tr: point2D(-this.width(), 0),
bl: point2D(this.width()*2, this.height()),
br: point2D(-this.width(), this.height())}[corner];
},
_foldingPage: function(corner) {
var opts = this.data().f.opts;
if (opts.folding) return opts.folding;
else if(opts.turn) {
var data = opts.turn.data();
if (data.display == 'single')
return (data.pageObjs[opts.next]) ? data.pageObjs[0] : null;
else
return data.pageObjs[opts.next];
}
},
_backGradient: function() {
var data = this.data().f,
turn = data.opts.turn,
gradient = data.opts.backGradient &&
(!turn || turn.data().display=='single' || (data.opts.page!=2 && data.opts.page!=turn.data().totalPages-1) );
if (gradient && !data.bshadow)
data.bshadow = $('<div/>', divAtt(0, 0, 1)).
css({'position': '', width: this.width(), height: this.height()}).
appendTo(data.parent);
return gradient;
},
resize: function(full) {
var data = this.data().f,
width = this.width(),
height = this.height(),
size = Math.round(Math.sqrt(Math.pow(width, 2)+Math.pow(height, 2)));
if (full) {
data.wrapper.css({width: size, height: size});
data.fwrapper.css({width: size, height: size}).
children(':first-child').
css({width: width, height: height});
data.fpage.css({width: height, height: width});
if (data.opts.frontGradient)
data.ashadow.css({width: height, height: width});
if (flipMethods._backGradient.call(this))
data.bshadow.css({width: width, height: height});
}
if (data.parent.is(':visible')) {
data.fwrapper.css({top: data.parent.offset().top,
left: data.parent.offset().left});
if (data.opts.turn)
data.fparent.css({top: -data.opts.turn.offset().top, left: -data.opts.turn.offset().left});
}
this.flip('z', data.opts['z-index']);
},
// Prepares the page by adding a general wrapper and another objects
_addPageWrapper: function() {
var att,
data = this.data().f,
parent = this.parent();
if (!data.wrapper) {
var left = this.css('left'),
top = this.css('top'),
width = this.width(),
height = this.height(),
size = Math.round(Math.sqrt(Math.pow(width, 2)+Math.pow(height, 2)));
data.parent = parent;
data.fparent = (data.opts.turn) ? data.opts.turn.data().fparent : $('#turn-fwrappers');
if (!data.fparent) {
var fparent = $('<div/>', {css: {'pointer-events': 'none'}}).hide();
fparent.data().flips = 0;
if (data.opts.turn) {
fparent.css(divAtt(-data.opts.turn.offset().top, -data.opts.turn.offset().left, 'auto', 'visible').css).
appendTo(data.opts.turn);
data.opts.turn.data().fparent = fparent;
} else {
fparent.css(divAtt(0, 0, 'auto', 'visible').css).
attr('id', 'turn-fwrappers').
appendTo($('body'));
}
data.fparent = fparent;
}
this.css({position: 'absolute', top: 0, left: 0, bottom: 'auto', right: 'auto'});
data.wrapper = $('<div/>', divAtt(0, 0, this.css('z-index'))).
appendTo(parent).
prepend(this);
data.fwrapper = $('<div/>', divAtt(parent.offset().top, parent.offset().left)).
hide().
appendTo(data.fparent);
data.fpage = $('<div/>', {css: {cursor: 'default'}}).
appendTo($('<div/>', divAtt(0, 0, 0, 'visible')).
appendTo(data.fwrapper));
if (data.opts.frontGradient)
data.ashadow = $('<div/>', divAtt(0, 0, 1)).
appendTo(data.fpage);
// Save data
flipMethods.setData.call(this, data);
// Set size
flipMethods.resize.call(this, true);
}
},
// Takes a 2P point from the screen and applies the transformation
_fold: function(point) {
var that = this,
a = 0,
alpha = 0,
beta,
px,
gradientEndPointA,
gradientEndPointB,
gradientStartV,
gradientSize,
gradientOpacity,
mv = point2D(0, 0),
df = point2D(0, 0),
tr = point2D(0, 0),
width = this.width(),
height = this.height(),
folding = flipMethods._foldingPage.call(this),
tan = Math.tan(alpha),
data = this.data().f,
ac = data.opts.acceleration,
h = data.wrapper.height(),
o = flipMethods._c.call(this, point.corner),
top = point.corner.substr(0, 1) == 't',
left = point.corner.substr(1, 1) == 'l',
compute = function() {
var rel = point2D((o.x) ? o.x - point.x : point.x, (o.y) ? o.y - point.y : point.y),
tan = (Math.atan2(rel.y, rel.x)),
middle;
alpha = A90 - tan;
a = deg(alpha);
middle = point2D((left) ? width - rel.x/2 : point.x + rel.x/2, rel.y/2);
var gamma = alpha - Math.atan2(middle.y, middle.x),
distance = Math.max(0, Math.sin(gamma) * Math.sqrt(Math.pow(middle.x, 2) + Math.pow(middle.y, 2)));
tr = point2D(distance * Math.sin(alpha), distance * Math.cos(alpha));
if (alpha > A90) {
tr.x = tr.x + Math.abs(tr.y * Math.tan(tan));
tr.y = 0;
if (Math.round(tr.x*Math.tan(PI-alpha)) < height) {
point.y = Math.sqrt(Math.pow(height, 2)+2 * middle.x * rel.x);
if (top) point.y = height - point.y;
return compute();
}
}
if (alpha>A90) {
var beta = PI-alpha, dd = h - height/Math.sin(beta);
mv = point2D(Math.round(dd*Math.cos(beta)), Math.round(dd*Math.sin(beta)));
if (left) mv.x = - mv.x;
if (top) mv.y = - mv.y;
}
px = Math.round(tr.y/Math.tan(alpha) + tr.x);
var side = width - px,
sideX = side*Math.cos(alpha*2),
sideY = side*Math.sin(alpha*2);
df = point2D(Math.round( (left ? side -sideX : px+sideX)), Math.round((top) ? sideY : height - sideY));
// GRADIENTS
gradientSize = side*Math.sin(alpha);
var endingPoint = flipMethods._c2.call(that, point.corner),
far = Math.sqrt(Math.pow(endingPoint.x-point.x, 2)+Math.pow(endingPoint.y-point.y, 2));
gradientOpacity = (far<width) ? far/width : 1;
if (data.opts.frontGradient) {
gradientStartV = gradientSize>100 ? (gradientSize-100)/gradientSize : 0;
gradientEndPointA = point2D(gradientSize*Math.sin(A90-alpha)/height*100, gradientSize*Math.cos(A90-alpha)/width*100);
if (top) gradientEndPointA.y = 100-gradientEndPointA.y;
if (left) gradientEndPointA.x = 100-gradientEndPointA.x;
}
if (flipMethods._backGradient.call(that)) {
gradientEndPointB = point2D(gradientSize*Math.sin(alpha)/width*100, gradientSize*Math.cos(alpha)/height*100);
if (!left) gradientEndPointB.x = 100-gradientEndPointB.x;
if (!top) gradientEndPointB.y = 100-gradientEndPointB.y;
}
//
tr.x = Math.round(tr.x);
tr.y = Math.round(tr.y);
return true;
},
transform = function(tr, c, x, a) {
var f = ['0', 'auto'], mvW = (width-h)*x[0]/100, mvH = (height-h)*x[1]/100,
v = {left: f[c[0]], top: f[c[1]], right: f[c[2]], bottom: f[c[3]]},
aliasingFk = (a!=90 && a!=-90) ? (left ? -1 : 1) : 0;
x = x[0] + '% ' + x[1] + '%';
that.css(v).transform(rotate(a) + translate(tr.x + aliasingFk, tr.y, ac), x);
data.fpage.parent().css(v);
data.wrapper.transform(translate(-tr.x + mvW-aliasingFk, -tr.y + mvH, ac) + rotate(-a), x);
data.fwrapper.transform(translate(-tr.x + mv.x + mvW, -tr.y + mv.y + mvH, ac) + rotate(-a), x);
data.fpage.parent().transform(rotate(a) + translate(tr.x + df.x - mv.x, tr.y + df.y - mv.y, ac), x);
if (data.opts.frontGradient)
gradient(data.ashadow,
point2D(left?100:0, top?100:0),
point2D(gradientEndPointA.x, gradientEndPointA.y),
[[gradientStartV, 'rgba(0,0,0,0)'],
[((1-gradientStartV)*0.8)+gradientStartV, 'rgba(0,0,0,'+(0.2*gradientOpacity)+')'],
[1, 'rgba(255,255,255,'+(0.2*gradientOpacity)+')']],
3,
alpha);
if (flipMethods._backGradient.call(that))
gradient(data.bshadow,
point2D(left?0:100, top?0:100),
point2D(gradientEndPointB.x, gradientEndPointB.y),
[[0.8, 'rgba(0,0,0,0)'],
[1, 'rgba(0,0,0,'+(0.3*gradientOpacity)+')'],
[1, 'rgba(0,0,0,0)']],
3);
};
switch (point.corner) {
case 'tl' :
point.x = Math.max(point.x, 1);
compute();
transform(tr, [1,0,0,1], [100, 0], a);
data.fpage.transform(translate(-height, -width, ac) + rotate(90-a*2) , '100% 100%');
folding.transform(rotate(90) + translate(0, -height, ac), '0% 0%');
break;
case 'tr' :
point.x = Math.min(point.x, width-1);
compute();
transform(point2D(-tr.x, tr.y), [0,0,0,1], [0, 0], -a);
data.fpage.transform(translate(0, -width, ac) + rotate(-90+a*2) , '0% 100%');
folding.transform(rotate(270) + translate(-width, 0, ac), '0% 0%');
break;
case 'bl' :
point.x = Math.max(point.x, 1);
compute();
transform(point2D(tr.x, -tr.y), [1,1,0,0], [100, 100], -a);
data.fpage.transform(translate(-height, 0, ac) + rotate(-90+a*2), '100% 0%');
folding.transform(rotate(270) + translate(-width, 0, ac), '0% 0%');
break;
case 'br' :
point.x = Math.min(point.x, width-1);
compute();
transform(point2D(-tr.x, -tr.y), [0,1,1,0], [0, 100], a);
data.fpage.transform(rotate(90-a*2), '0% 0%');
folding.transform(rotate(90) + translate(0, -height, ac), '0% 0%');
break;
}
data.point = point;
},
_moveFoldingPage: function(bool) {
var data = this.data().f,
folding = flipMethods._foldingPage.call(this);
if (folding) {
if (bool) {
if (!data.fpage.children()[data.ashadow? '1' : '0']) {
flipMethods.setData.call(this, {backParent: folding.parent()});
data.fpage.prepend(folding);
}
} else {
if (data.backParent)
data.backParent.prepend(folding);
}
}
},
_showFoldedPage: function(c, animate) {
var folding = flipMethods._foldingPage.call(this),
dd = this.data(),
data = dd.f;
if (!data.point || data.point.corner!=c.corner) {
var event = $.Event('start');
this.trigger(event, [data.opts, c.corner]);
if (event.isDefaultPrevented())
return false;
}
if (folding) {
if (animate) {
var that = this, point = (data.point && data.point.corner==c.corner) ? data.point : flipMethods._c.call(this, c.corner, 1);
this.animatef({from: [point.x, point.y], to:[c.x, c.y], duration: 500, frame: function(v) {
c.x = Math.round(v[0]);
c.y = Math.round(v[1]);
flipMethods._fold.call(that, c);
}});
} else {
flipMethods._fold.call(this, c);
if (dd.effect && !dd.effect.turning)
this.animatef(false);
}
if (!data.fwrapper.is(':visible')) {
data.fparent.show().data().flips++;
flipMethods._moveFoldingPage.call(this, true);
data.fwrapper.show();
if (data.bshadow)
data.bshadow.show();
}
return true;
}
return false;
},
hide: function() {
var data = this.data().f,
folding = flipMethods._foldingPage.call(this);
if ((--data.fparent.data().flips)===0)
data.fparent.hide();
this.css({left: 0, top: 0, right: 'auto', bottom: 'auto'}).transform('', '0% 100%');
data.wrapper.transform('', '0% 100%');
data.fwrapper.hide();
if (data.bshadow)
data.bshadow.hide();
folding.transform('', '0% 0%');
return this;
},
hideFoldedPage: function(animate) {
var data = this.data().f;
if (!data.point) return;
var that = this,
p1 = data.point,
hide = function() {
data.point = null;
that.flip('hide');
that.trigger('end', [false]);
};
if (animate) {
var p4 = flipMethods._c.call(this, p1.corner),
top = (p1.corner.substr(0,1)=='t'),
delta = (top) ? Math.min(0, p1.y-p4.y)/2 : Math.max(0, p1.y-p4.y)/2,
p2 = point2D(p1.x, p1.y+delta),
p3 = point2D(p4.x, p4.y-delta);
this.animatef({
from: 0,
to: 1,
frame: function(v) {
var np = bezier(p1, p2, p3, p4, v);
p1.x = np.x;
p1.y = np.y;
flipMethods._fold.call(that, p1);
},
complete: hide,
duration: 800,
hiding: true
});
} else {
this.animatef(false);
hide();
}
},
turnPage: function(corner) {
var that = this,
data = this.data().f;
corner = {corner: (data.corner) ? data.corner.corner : corner || flipMethods._cAllowed.call(this)[0]};
var p1 = data.point || flipMethods._c.call(this, corner.corner, (data.opts.turn) ? data.opts.turn.data().opts.elevation : 0),
p4 = flipMethods._c2.call(this, corner.corner);
this.trigger('flip').
animatef({
from: 0,
to: 1,
frame: function(v) {
var np = bezier(p1, p1, p4, p4, v);
corner.x = np.x;
corner.y = np.y;
flipMethods._showFoldedPage.call(that, corner);
},
complete: function() {
that.trigger('end', [true]);
},
duration: data.opts.duration,
turning: true
});
data.corner = null;
},
moving: function() {
return 'effect' in this.data();
},
isTurning: function() {
return this.flip('moving') && this.data().effect.turning;
},
_eventStart: function(e) {
var data = this.data().f;
if (!data.disabled && !this.flip('isTurning')) {
data.corner = flipMethods._cornerActivated.call(this, e);
if (data.corner && flipMethods._foldingPage.call(this, data.corner)) {
flipMethods._moveFoldingPage.call(this, true);
this.trigger('pressed', [data.point]);
return false;
} else
data.corner = null;
}
},
_eventMove: function(e) {
var data = this.data().f;
if (!data.disabled) {
e = (isTouch) ? e.originalEvent.touches : [e];
if (data.corner) {
var pos = data.parent.offset();
data.corner.x = e[0].pageX-pos.left;
data.corner.y = e[0].pageY-pos.top;
flipMethods._showFoldedPage.call(this, data.corner);
} else if (!this.data().effect && this.is(':visible')) { // roll over
var corner = flipMethods._cornerActivated.call(this, e[0]);
if (corner) {
var origin = flipMethods._c.call(this, corner.corner, data.opts.cornerSize/2);
corner.x = origin.x;
corner.y = origin.y;
flipMethods._showFoldedPage.call(this, corner, true);
} else
flipMethods.hideFoldedPage.call(this, true);
}
}
},
_eventEnd: function() {
var data = this.data().f;
if (!data.disabled && data.point) {
var event = $.Event('released');
this.trigger(event, [data.point]);
if (!event.isDefaultPrevented())
flipMethods.hideFoldedPage.call(this, true);
}
data.corner = null;
},
disable: function(disable) {
flipMethods.setData.call(this, {'disabled': disable});
return this;
}
},
cla = function(that, methods, args) {
if (!args[0] || typeof(args[0])=='object')
return methods.init.apply(that, args);
else if(methods[args[0]] && args[0].toString().substr(0, 1)!='_')
return methods[args[0]].apply(that, Array.prototype.slice.call(args, 1));
else
throw args[0] + ' is an invalid value';
};
$.extend($.fn, {
flip: function(req, opts) {
return cla(this, flipMethods, arguments);
},
turn: function(req) {
return cla(this, turnMethods, arguments);
},
transform: function(transform, origin) {
var properties = {};
if (origin)
properties[vendor+'transform-origin'] = origin;
properties[vendor+'transform'] = transform;
return this.css(properties);
},
animatef: function(point) {
var data = this.data();
if (data.effect)
clearInterval(data.effect.handle);
if (point) {
if (!point.to.length) point.to = [point.to];
if (!point.from.length) point.from = [point.from];
if (!point.easing) point.easing = function (x, t, b, c, data) { return c * Math.sqrt(1 - (t=t/data-1)*t) + b; };
var j, diff = [],
len = point.to.length,
that = this,
fps = point.fps || 30,
time = - fps,
f = function() {
var j, v = [];
time = Math.min(point.duration, time + fps);
for (j = 0; j < len; j++)
v.push(point.easing(1, time, point.from[j], diff[j], point.duration));
point.frame((len==1) ? v[0] : v);
if (time==point.duration) {
clearInterval(data.effect.handle);
delete data['effect'];
that.data(data);
if (point.complete)
point.complete();
}
};
for (j = 0; j < len; j++)
diff.push(point.to[j] - point.from[j]);
data.effect = point;
data.effect.handle = setInterval(f, fps);
this.data(data);
f();
} else {
delete data['effect'];
}
}
});
$.isTouch = isTouch;
})(jQuery);