Team:ZJU-China/js/book/turn.js
/**
* turn.js 4th release * turnjs.com * turnjs.com/license.txt * * Copyright (C) 2012 Emmanuel Garcia * All rights reserved **/
(function($book) {
'use strict';
var has3d,
hasRot,
vendor = , version = '4.1.0',
PI = Math.PI,
A90 = PI/2,
isTouch = 'ontouchstart' in window,
mouseEvents = (isTouch) ?
{
down: 'touchstart',
move: 'touchmove',
up: 'touchend',
over: 'touchstart',
out: 'touchend'
}
:
{
down: 'mousedown',
move: 'mousemove',
up: 'mouseup',
over: 'mouseover',
out: 'mouseout'
},
// Contansts used for each corner // | tl * tr | // l | * * | r // | bl * br |
corners = {
backward: ['bl', 'tl'],
forward: ['br', 'tr'],
all: ['tl', 'bl', 'tr', 'br', 'l', 'r']
},
// Display values
displays = ['single', 'double'],
// Direction values
directions = ['ltr', 'rtl'],
// Default options
turnOptions = {
// Enables hardware acceleration
acceleration: true,
// Display
display: 'double',
// Duration of transition in milliseconds
duration: 600,
// First page
page: 1, // Enables gradients
gradients: true,
// Corners used when turning the page
turnCorners: 'bl,br',
// Events
when: null },
flipOptions = {
// Size of the active zone of each corner
cornerSize: 100
},
// Number of pages in the DOM, minimum value: 6
pagesInDOM = 6,
turnMethods = {
// Singleton constructor
// $book('#selector').turn([options]);
init: function(options) {
// Define constants has3d = 'WebKitCSSMatrix' in window || 'MozPerspective' in document.body.style; hasRot = rotationAvailable(); vendor = getPrefix();
var i, that = this, pageNum = 0, data = this.data(), ch = this.children();
// Set initial configuration
options = $book.extend({
width: this.width(),
height: this.height(),
direction: this.attr('dir') || this.css('direction') || 'ltr'
}, turnOptions, options);
data.opts = options;
data.pageObjs = {};
data.pages = {};
data.pageWrap = {};
data.pageZoom = {};
data.pagePlace = {};
data.pageMv = [];
data.zoom = 1;
data.totalPages = options.pages || 0;
data.eventHandlers = {
touchStart: $book.proxy(turnMethods._touchStart, this),
touchMove: $book.proxy(turnMethods._touchMove, this),
touchEnd: $book.proxy(turnMethods._touchEnd, this),
start: $book.proxy(turnMethods._eventStart, this)
};
// Add event listeners
if (options.when)
for (i in options.when)
if (has(i, options.when))
this.bind(i, options.when[i]);
// Set the css
this.css({position: 'relative', width: options.width, height: options.height});
// Set the initial display
this.turn('display', options.display);
// Set the direction
if (options.direction!==)
this.turn('direction', options.direction);
// Prevent blue screen problems of switching to hardware acceleration mode
// By forcing hardware acceleration for ever
if (has3d && !isTouch && options.acceleration)
this.transform(translate(0, 0, true));
// Add pages from the DOM
for (i = 0; i<ch.length; i++) {
if ($book(ch[i]).attr('ignore')!='1') {
this.turn('addPage', ch[i], ++pageNum);
}
}
// Event listeners
$book(this).bind(mouseEvents.down, data.eventHandlers.touchStart).
bind('end', turnMethods._eventEnd).
bind('pressed', turnMethods._eventPressed).
bind('released', turnMethods._eventReleased).
bind('flip', turnMethods._flip);
$book(this).parent().bind('start', data.eventHandlers.start);
$book(document).bind(mouseEvents.move, data.eventHandlers.touchMove).
bind(mouseEvents.up, data.eventHandlers.touchEnd);
// Set the initial page
this.turn('page', options.page);
// This flipbook is ready
data.done = true;
return this; },
// Adds a page from external data
addPage: function(element, page) {
var currentPage,
className,
incPages = false,
data = this.data(),
lastPage = data.totalPages+1;
if (data.destroying)
return false;
// Read the page number from the className of `element` - format: p[0-9]+
if ((currentPage = /\bp([0-9]+)\b/.exec($book(element).attr('class'))))
page = parseInt(currentPage[1], 10);
if (page) {
if (page==lastPage)
incPages = true;
else if (page>lastPage)
throw turnError('Page "'+page+'" cannot be inserted');
} else {
page = lastPage;
incPages = true;
}
if (page>=1 && page<=lastPage) {
if (data.display=='double')
className = (page%2) ? ' odd' : ' even';
else
className = ;
// 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);
// Increase the number of pages
if (incPages)
data.totalPages = lastPage;
// Add element
data.pageObjs[page] = $book(element).
css({'float': 'left'}).
addClass('page p' + page + className);
if (!hasHardPage() && data.pageObjs[page].hasClass('hard')) {
data.pageObjs[page].removeClass('hard');
}
// Add page
turnMethods._addPage.call(this, page);
// Remove pages out of range
turnMethods._removeFromDOM.call(this);
}
return this; },
// Adds a page
_addPage: function(page) {
var data = this.data(),
element = data.pageObjs[page];
if (element)
if (turnMethods._necessPage.call(this, page)) {
if (!data.pageWrap[page]) {
// Wrapper
data.pageWrap[page] = $book('<div/>',
{'class': 'page-wrapper',
page: page,
css: {position: 'absolute',
overflow: 'hidden'}});
// Append to this flipbook
this.append(data.pageWrap[page]);
if (!data.pagePlace[page]) {
data.pagePlace[page] = page;
// Move `pageObjs[page]` to wrapper
data.pageObjs[page].appendTo(data.pageWrap[page]);
}
// Set the size of the page
var prop = turnMethods._pageSize.call(this, page, true);
element.css({width: prop.width, height: prop.height});
data.pageWrap[page].css(prop);
}
if (data.pagePlace[page] == page) {
// If the page isn't in another place, create the flip effect
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 has(page, this.data().pageObjs); },
// Centers the flipbook
center: function(page) {
var data = this.data(),
size = $book(this).turn('size'),
left = 0;
if (!data.noCenter) {
if (data.display=='double') {
var view = this.turn('view', page || data.tpage || data.page);
if (data.direction=='ltr') {
if (!view[0])
left -= size.width/4;
else if (!view[1])
left += size.width/4;
} else {
if (!view[0])
left += size.width/4;
else if (!view[1])
left -= size.width/4;
}
}
$book(this).css({marginLeft: left});
}
return this;
},
// Destroys the flipbook
destroy: function () {
var page,
flipbook = this,
data = this.data(),
events = [
'end', 'first', 'flip', 'last', 'pressed',
'released', 'start', 'turning', 'turned',
'zooming', 'missing'];
if (trigger('destroying', this)=='prevented')
return;
data.destroying = true;
$book.each(events, function(index, eventName) {
flipbook.unbind(eventName);
});
this.parent().unbind('start', data.eventHandlers.start);
$book(document).unbind(mouseEvents.move, data.eventHandlers.touchMove).
unbind(mouseEvents.up, data.eventHandlers.touchEnd);
while (data.totalPages!==0) {
this.turn('removePage', data.totalPages);
}
if (data.fparent)
data.fparent.remove();
if (data.shadow)
data.shadow.remove();
this.removeData(); data = null;
return this;
},
// Checks if this element is a flipbook
is: function() {
return typeof(this.data().pages)=='object';
},
// Sets and gets the zoom value
zoom: function(newZoom) {
var data = this.data();
if (typeof(newZoom)=='number') {
if (newZoom<0.001 || newZoom>100)
throw turnError(newZoom+ ' is not a value for zoom');
if (trigger('zooming', this, [newZoom, data.zoom])=='prevented')
return this;
var size = this.turn('size'),
currentView = this.turn('view'),
iz = 1/data.zoom,
newWidth = Math.round(size.width * iz * newZoom),
newHeight = Math.round(size.height * iz * newZoom);
data.zoom = newZoom;
$book(this).turn('stop').
turn('size', newWidth, newHeight);
/*.
css({marginTop: size.height * iz / 2 - newHeight / 2});*/
if (data.opts.autoCenter)
this.turn('center');
/*else
$book(this).css({marginLeft: size.width * iz / 2 - newWidth / 2});*/
turnMethods._updateShadow.call(this);
for (var i = 0; i<currentView.length; i++) {
if (currentView[i] && data.pageZoom[currentView[i]]!=data.zoom) {
this.trigger('zoomed',[
currentView[i],
currentView,
data.pageZoom[currentView[i]],
data.zoom]);
data.pageZoom[currentView[i]] = data.zoom;
}
}
return this;
} else
return data.zoom;
},
// Gets the size of a page
_pageSize: function(page, position) {
var data = this.data(),
prop = {};
if (data.display=='single') {
prop.width = this.width();
prop.height = this.height();
if (position) {
prop.top = 0;
prop.left = 0;
prop.right = 'auto';
}
} else {
var pageWidth = this.width()/2,
pageHeight = this.height();
if (data.pageObjs[page].hasClass('own-size')) {
prop.width = data.pageObjs[page].width();
prop.height = data.pageObjs[page].height();
} else {
prop.width = pageWidth;
prop.height = pageHeight;
}
if (position) {
var odd = page%2;
prop.top = (pageHeight-prop.height)/2;
if (data.direction=='ltr') {
prop[(odd) ? 'right' : 'left'] = pageWidth-prop.width;
prop[(odd) ? 'left' : 'right'] = 'auto';
} else {
prop[(odd) ? 'left' : 'right'] = pageWidth-prop.width;
prop[(odd) ? 'right' : 'left'] = 'auto';
}
}
}
return prop;
},
// 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',
odd = page%2;
data.pages[page] = data.pageObjs[page].
css(turnMethods._pageSize.call(this, page)).
flip({
page: page,
next: (odd || single) ? page+1 : page-1,
turn: this
}).
flip('disable', data.disabled);
// Issue about z-index
turnMethods._setPageLoc.call(this, page);
data.pageZoom[page] = data.zoom;
}
return data.pages[page]; },
// Makes pages within a range
_makeRange: function() {
var page, range,
data = this.data();
if (data.totalPages<1)
return;
range = this.turn('range');
for (page = range[0]; page<=range[1]; page++)
turnMethods._addPage.call(this, page);
},
// Returns a range of pages that should be in the DOM // Example: // - page in the current view, return true // * page is in the range, return true // Otherwise, return false // // 1 2-3 4-5 6-7 8-9 10-11 12-13 // ** ** -- ** **
range: function(page) {
var remainingPages, left, right, view,
data = this.data();
page = page || data.tpage || data.page || 1;
view = turnMethods._view.call(this, page);
if (page<1 || page>data.totalPages)
throw turnError('"'+page+'" is not a valid page');
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 this.data().pageObjs[page].hasClass('fixed') ||
(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();
flipMethods._moveFoldingPage.call(data.pages[page], false);
if (dd.f && dd.f.fwrapper)
dd.f.fwrapper.remove();
data.pages[page].removeData();
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];
}
turnMethods._removeMv.call(this, page);
delete data.pagePlace[page]; delete data.pageZoom[page];
},
// Removes a page
removePage: function(page) {
var data = this.data();
// Delete all the pages
if (page=='*') {
while (data.totalPages!==0) {
this.turn('removePage', data.totalPages);
}
} else {
if (page<1 || page>data.totalPages)
throw turnError('The page '+ page + ' doesn\'t exist');
if (data.pageObjs[page]) {
// Stop animations
this.turn('stop');
// Remove `page`
turnMethods._removePageFromDOM.call(this, page);
delete data.pageObjs[page];
}
// Move the pages
turnMethods._movePages.call(this, page, -1);
// Resize the size of this flipbook
data.totalPages = data.totalPages-1;
// Check the current view
if (data.page>data.totalPages) {
data.page = null;
turnMethods._fitPage.call(this, data.totalPages);
} else {
turnMethods._makeRange.call(this);
this.turn('update');
} }
return this; },
// Moves pages
_movePages: function(from, change) {
var page,
that = this,
data = this.data(),
single = data.display=='single',
move = function(page) {
var next = page + change,
odd = next%2,
className = (odd) ? ' odd ' : ' even ';
if (data.pageObjs[page])
data.pageObjs[next] = data.pageObjs[page].
removeClass('p' + page + ' odd even').
addClass('p' + next + className);
if (data.pagePlace[page] && data.pageWrap[page]) {
data.pagePlace[next] = next;
if (data.pageObjs[next].hasClass('fixed'))
data.pageWrap[next] = data.pageWrap[page].
attr('page', next);
else
data.pageWrap[next] = data.pageWrap[page].
css(turnMethods._pageSize.call(that, next, true)).
attr('page', next);
if (data.pages[page])
data.pages[next] = data.pages[page].
flip('options', {
page: next,
next: (single || odd) ? next+1 : next-1
});
if (change) {
delete data.pages[page];
delete data.pagePlace[page];
delete data.pageZoom[page];
delete data.pageObjs[page];
delete data.pageWrap[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===undefined) {
return currentDisplay;
} else {
if ($book.inArray(display, displays)==-1)
throw turnError('"'+display + '" is not a value for display');
switch(display) {
case 'single':
// Create a temporal page to use as folded page
if (!data.pageObjs[0]) {
this.turn('stop').
css({'overflow': 'hidden'});
data.pageObjs[0] = $book('<div />',
{'class': 'page p-temporal'}).
css({width: this.width(), height: this.height()}).
appendTo(this);
}
this.addClass('shadow');
break;
case 'double':
// Remove the temporal page
if (data.pageObjs[0]) {
this.turn('stop').css({'overflow': });
data.pageObjs[0].remove();
delete data.pageObjs[0];
}
this.removeClass('shadow');
break;
}
data.display = display;
if (currentDisplay) {
var size = this.turn('size');
turnMethods._movePages.call(this, 1, 0);
this.turn('size', size.width, size.height).
turn('update');
}
return this;
} }, // Gets and sets the direction of the flipbook
direction: function(dir) {
var data = this.data();
if (dir===undefined) {
return data.direction;
} else {
dir = dir.toLowerCase();
if ($book.inArray(dir, directions)==-1)
throw turnError('"' + dir + '" is not a value for direction');
if (dir=='rtl') {
$book(this).attr('dir', 'ltr').
css({direction: 'ltr'});
}
data.direction = dir;
if (data.done)
this.turn('size', $book(this).width(), $book(this).height());
return this; }
},
// Detects animation
animating: function() {
return this.data().pageMv.length>0;
},
// Gets the current activated corner
corner: function() {
var corner,
page,
data = this.data();
for (page in data.pages) {
if (has(page, data.pages))
if ((corner = data.pages[page].flip('corner'))) {
return corner;
}
}
return false; },
// Gets the data stored in the flipbook
data: function() {
return this.data();
},
// Disables and enables the effect
disable: function(disable) {
var page,
data = this.data(),
view = this.turn('view');
data.disabled = disable===undefined || disable===true;
for (page in data.pages) {
if (has(page, data.pages))
data.pages[page].flip('disable',
(data.disabled) ? true : $book.inArray(parseInt(page, 10), view)==-1);
}
return this;
},
// Disables and enables the effect
disabled: function(disable) {
if (disable===undefined) {
return this.data().disabled===true;
} else {
return this.turn('disable', disable);
}
},
// Gets and sets the size
size: function(width, height) {
if (width===undefined || height===undefined) {
return {width: this.width(), height: this.height()};
} else {
this.turn('stop');
var page, prop,
data = this.data(),
pageWidth = (data.display=='double') ? width/2 : width;
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;
prop = turnMethods._pageSize.call(this, page, true);
data.pageObjs[page].css({width: prop.width, height: prop.height});
data.pageWrap[page].css(prop);
if (data.pages[page])
data.pages[page].css({width: prop.width, height: prop.height});
}
this.turn('resize');
return this;
} },
// 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);
turnMethods._updateShadow.call(this);
if (data.opts.autoCenter)
this.turn('center');
},
// 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);
if (data.display=='double')
return [(view[0]>0) ? view[0] : 0,
(view[1]<=data.totalPages) ? view[1] : 0];
else
return [(view[0]>0 && view[0]<=data.totalPages) ? view[0] : 0];
},
// Stops animations
stop: function(ignore, animate) {
if (this.turn('animating')) {
var i, opts, page,
data = this.data();
if (data.tpage) {
data.page = data.tpage;
delete data['tpage'];
}
for (i = 0; i<data.pageMv.length; i++) {
if (!data.pageMv[i] || data.pageMv[i]===ignore)
continue;
page = data.pages[data.pageMv[i]];
opts = page.data().f.opts;
page.flip('hideFoldedPage', animate);
if (!animate)
flipMethods._moveFoldingPage.call(page, false);
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 = data.totalPages; page>pages; page--)
this.turn('removePage', page);
}
data.totalPages = pages;
turnMethods._fitPage.call(this, data.page);
return this;
} else
return data.totalPages;
},
// Checks missing pages
_missing : function(page) {
var data = this.data();
if (data.totalPages<1)
return;
var p,
range = this.turn('range', page),
missing = [];
for (p = range[0]; p<=range[1]; p++) {
if (!data.pageObjs[p])
missing.push(p);
}
if (missing.length>0)
this.trigger('missing', [missing]);
},
// Sets a page without effect
_fitPage: function(page) {
var data = this.data(),
newView = this.turn('view', page);
turnMethods._missing.call(this, page);
if (!data.pageObjs[page])
return;
data.page = page;
this.turn('stop');
for (var i = 0; i<newView.length; i++) {
if (newView[i] && data.pageZoom[newView[i]]!=data.zoom) {
this.trigger('zoomed',[
newView[i],
newView,
data.pageZoom[newView[i]],
data.zoom]);
data.pageZoom[newView[i]] = data.zoom;
} }
turnMethods._removeFromDOM.call(this);
turnMethods._makeRange.call(this);
turnMethods._updateShadow.call(this);
this.trigger('turned', [page, newView]);
this.turn('update');
if (data.opts.autoCenter)
this.turn('center');
}, // Turns the page
_turnPage: function(page) {
var current,
next,
data = this.data(),
place = data.pagePlace[page],
view = this.turn('view'),
newView = this.turn('view', page);
if (data.page!=page) {
var currentPage = data.page;
if (trigger('turning', this, [page, newView])=='prevented') {
if (currentPage==data.page && $book.inArray(place, data.pageMv)!=-1)
data.pages[place].flip('hideFoldedPage', true);
return;
}
if ($book.inArray(1, newView)!=-1)
this.trigger('first');
if ($book.inArray(data.totalPages, newView)!=-1)
this.trigger('last');
}
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];
}
var optsCorners = data.opts.turnCorners.split(','),
flipData = data.pages[current].data().f,
opts = flipData.opts,
actualPoint = flipData.point;
turnMethods._missing.call(this, page);
if (!data.pageObjs[page])
return;
this.turn('stop');
data.page = page;
turnMethods._makeRange.call(this);
data.tpage = next;
if (opts.next!=next) {
opts.next = next;
opts.force = true;
}
this.turn('update');
flipData.point = actualPoint;
if (flipData.effect=='hard')
if (data.direction=='ltr')
data.pages[current].flip('turnPage',
(page>current) ? 'r' : 'l');
else
data.pages[current].flip('turnPage',
(page>current) ? 'l' : 'r');
else {
if (data.direction=='ltr')
data.pages[current].flip('turnPage',
optsCorners[(page>current) ? 1 : 0]);
else
data.pages[current].flip('turnPage',
optsCorners[(page>current) ? 0 : 1]);
}
},
// Gets and sets a page
page: function(page) {
var data = this.data();
if (page===undefined) {
return data.page;
} else {
if (!data.disabled && !data.destroying) {
page = parseInt(page, 10);
if (page>0 && page<=data.totalPages) {
if (page!=data.page) {
if (!data.done || $book.inArray(page, this.turn('view'))!=-1)
turnMethods._fitPage.call(this, page);
else
turnMethods._turnPage.call(this, page);
}
return this;
} else {
throw turnError('The page ' + page + ' does not exist');
}
}
}
},
// Turns to the next view
next: function() {
return this.turn('page', Math.min(this.data().totalPages,
turnMethods._view.call(this, this.data().page).pop() + 1));
},
// Turns to the previous view
previous: function() {
return this.turn('page', Math.max(1,
turnMethods._view.call(this, this.data().page).shift() - 1));
},
// Shows a peeling corner
peel: function(corner, animate) {
var data = this.data(),
view = this.turn('view');
animate = (animate===undefined) ? true : animate===true;
if (corner===false) {
this.turn('stop', null, animate);
} else {
if (data.display=='single') {
data.pages[data.page].flip('peel', corner, animate);
} else {
var page;
if (data.direction=='ltr') {
page = (corner.indexOf('l')!=-1) ? view[0] : view[1];
} else {
page = (corner.indexOf('l')!=-1) ? view[1] : view[0];
}
if (data.pages[page])
data.pages[page].flip('peel', corner, animate);
} }
return this;
},
// Adds a motion to the internal list // This event is called in context of flip
_addMotionPage: function() {
var opts = $book(this).data().f.opts,
turn = opts.turn,
dd = turn.data();
turnMethods._addMv.call(turn, opts.page);
},
// This event is called in context of flip
_eventStart: function(e, opts, corner) {
var data = opts.turn.data(),
actualZoom = data.pageZoom[opts.page];
if (e.isDefaultPrevented()) {
turnMethods._updateShadow.call(opts.turn);
return;
}
if (actualZoom && actualZoom!=data.zoom) {
opts.turn.trigger('zoomed',[
opts.page,
opts.turn.turn('view', opts.page),
actualZoom,
data.zoom]);
data.pageZoom[opts.page] = data.zoom;
}
if (data.display=='single' && corner) {
if ((corner.charAt(1)=='l' && data.direction=='ltr') ||
(corner.charAt(1)=='r' && data.direction=='rtl'))
{
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(e.target); turnMethods._updateShadow.call(opts.turn); },
// This event is called in context of flip
_eventEnd: function(e, opts, turned) {
var that = $book(e.target),
data = that.data().f,
turn = opts.turn,
dd = turn.data();
if (turned) {
var tpage = dd.tpage || dd.page;
if (tpage==opts.next || tpage==opts.page) {
delete dd.tpage;
turnMethods._fitPage.call(turn, tpage || opts.next, true);
}
} else {
turnMethods._removeMv.call(turn, opts.page);
turnMethods._updateShadow.call(turn);
turn.turn('update');
} }, // This event is called in context of flip
_eventPressed: function(e) {
var page,
data = $book(e.target).data().f,
turn = data.opts.turn,
turnData = turn.data(),
pages = turnData.pages;
turnData.mouseAction = true;
turn.turn('update');
return data.time = new Date().getTime();
},
// This event is called in context of flip
_eventReleased: function(e, point) {
var outArea,
page = $book(e.target),
data = page.data().f,
turn = data.opts.turn,
turnData = turn.data();
if (turnData.display=='single') {
outArea = (point.corner=='br' || point.corner=='tr') ?
point.x<page.width()/2:
point.x>page.width()/2;
} else {
outArea = point.x<0 || point.x>page.width();
}
if ((new Date()).getTime()-data.time<200 || outArea) {
e.preventDefault();
turnMethods._turnPage.call(turn, data.opts.next);
}
turnData.mouseAction = false;
},
// This event is called in context of flip
_flip: function(e) {
e.stopPropagation();
var opts = $book(e.target).data().f.opts;
opts.turn.trigger('turn', [opts.next]);
if (opts.turn.data().opts.autoCenter) {
opts.turn.turn('center', opts.next);
}
},
//
_touchStart: function() {
var data = this.data();
for (var page in data.pages) {
if (has(page, data.pages) &&
flipMethods._eventStart.apply(data.pages[page], arguments)===false) {
return false;
}
}
},
//
_touchMove: function() {
var data = this.data();
for (var page in data.pages) {
if (has(page, data.pages)) {
flipMethods._eventMove.apply(data.pages[page], arguments);
}
}
},
//
_touchEnd: function() {
var data = this.data();
for (var page in data.pages) {
if (has(page, data.pages)) {
flipMethods._eventEnd.apply(data.pages[page], arguments);
}
}
},
// 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],
total = mv.length-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<=total; 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 - total + i;
}
return r; },
// Updates the z-index and display property of every page
update: function() {
var page,
data = this.data();
if (this.turn('animating') && data.pageMv[0]!==0) {
// Update motion
var p, apage, fixed,
pos = this.turn('calculateZ', data.pageMv),
corner = this.turn('corner'),
actualView = this.turn('view'),
newView = this.turn('view', data.tpage);
for (page in data.pageWrap) {
if (!has(page, data.pageWrap))
continue;
fixed = data.pageObjs[page].hasClass('fixed');
data.pageWrap[page].css({
display: (pos.pageV[page] || fixed) ? : 'none',
zIndex:
(data.pageObjs[page].hasClass('hard') ?
pos.partZ[page]
:
pos.pageZ[page]
) || (fixed ? -1 : 0)
});
if ((p = data.pages[page])) {
p.flip('z', pos.partZ[page] || null);
if (pos.pageV[page])
p.flip('resize');
if (data.tpage) { // Is it turning the page to `tpage`?
p.flip('hover', false).
flip('disable',
$book.inArray(parseInt(page, 10), data.pageMv)==-1 &&
page!=newView[0] &&
page!=newView[1]);
} else {
p.flip('hover', corner===false).
flip('disable', page!=actualView[0] && page!=actualView[1]);
}
}
}
} 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('hover', true).
flip('z', null);
}
}
}
return this; },
// Updates the position and size of the flipbook's shadow
_updateShadow: function() {
var view, view2, shadow,
data = this.data(),
width = this.width(),
height = this.height(),
pageWidth = (data.display=='single') ? width : width/2;
view = this.turn('view');
if (!data.shadow) {
data.shadow = $book('<div />', {
'class': 'shadow',
'css': divAtt(0, 0, 0).css
}).
appendTo(this);
}
for (var i = 0; i<data.pageMv.length; i++) {
if (!view[0] || !view[1])
break;
view = this.turn('view', data.pages[data.pageMv[i]].data().f.opts.next);
view2 = this.turn('view', data.pageMv[i]);
view[0] = view[0] && view2[0];
view[1] = view[1] && view2[1];
}
if (!view[0]) shadow = (data.direction=='ltr') ? 1 : 2; else if (!view[1]) shadow = (data.direction=='ltr') ? 2 : 1; else shadow = 3;
switch (shadow) {
case 1:
data.shadow.css({
width: pageWidth,
height: height,
top: 0,
left: pageWidth
});
break;
case 2:
data.shadow.css({
width: pageWidth,
height: height,
top: 0,
left: 0
});
break;
case 3:
data.shadow.css({
width: width,
height: height,
top: 0,
left: 0
});
break;
}
},
// 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'),
loc = 0;
if (page==view[0] || page==view[1])
loc = 1;
else if (
(data.display=='single' && page==view[0]+1) ||
(data.display=='double' && page==view[0]-2 || page==view[1]+2)
)
loc = 2;
if (!this.turn('animating'))
switch (loc) {
case 1:
data.pageWrap[page].css(
{
zIndex: data.totalPages,
display:
});
break;
case 2:
data.pageWrap[page].css(
{
zIndex: data.totalPages-1,
display:
});
break;
case 0:
data.pageWrap[page].css(
{
zIndex: 0,
display: (data.pageObjs[page].hasClass('fixed')) ? : 'none'}
);
break;
}
return loc;
},
// Gets and sets the options
options: function(options) {
if (options===undefined) {
return this.data().opts;
} else {
var data = this.data();
// Set new values
$book.extend(data.opts, options);
// Set pages
if (options.pages)
this.turn('pages', options.pages);
// Set page
if (options.page)
this.turn('page', options.page);
// Set display
if (options.display)
this.turn('display', options.display);
// Set direction
if (options.direction)
this.turn('direction', options.direction);
// Set size
if (options.width && options.height)
this.turn('size', options.width, options.height);
// Add event listeners
if (options.when)
for (var eventName in options.when)
if (has(eventName, options.when)) {
this.unbind(eventName).
bind(eventName, options.when[eventName]);
}
return this; }
},
// Gets the current version
version: function() {
return version;
}
},
// Methods and properties for the flip page effect
flipMethods = {
// Constructor
init: function(opts) {
this.data({f: {
disabled: false,
hover: false,
effect: (this.hasClass('hard')) ? 'hard' : 'sheet'
}});
this.flip('options', opts);
flipMethods._addPageWrapper.call(this);
return this; },
setData: function(d) {
var data = this.data();
data.f = $book.extend(data.f, d);
return this; },
options: function(opts) {
var data = this.data().f;
if (opts) {
flipMethods.setData.call(this,
{opts: $book.extend({}, data.opts || flipOptions, opts)});
return this;
} else
return data.opts;
},
z: function(z) {
var data = this.data().f;
data.opts['z-index'] = z;
if (data.fwrapper)
data.fwrapper.css({
zIndex: z || parseInt(data.parent.css('z-index'), 10) || 0
});
return this; },
_cAllowed: function() {
var data = this.data().f,
page = data.opts.page,
turnData = data.opts.turn.data(),
odd = page%2;
if (data.effect=='hard') {
return (turnData.direction=='ltr') ?
[(odd) ? 'r' : 'l'] :
[(odd) ? 'l' : 'r'];
} else {
if (turnData.display=='single') {
if (page==1)
return (turnData.direction=='ltr') ?
corners['forward'] : corners['backward'];
else if (page==turnData.totalPages)
return (turnData.direction=='ltr') ?
corners['backward'] : corners['forward'];
else
return corners['all'];
} else {
return (turnData.direction=='ltr') ?
corners[(odd) ? 'forward' : 'backward']
:
corners[(odd) ? 'backward' : 'forward'];
}
}
},
_cornerActivated: function(p) {
var data = this.data().f,
width = this.width(),
height = this.height(),
point = {x: p.x, y: p.y, corner: },
csz = data.opts.cornerSize;
if (point.x<=0 || point.y<=0 || point.x>=width || point.y>=height)
return false;
var allowedCorners = flipMethods._cAllowed.call(this);
switch (data.effect) {
case 'hard':
if (point.x>width-csz)
point.corner = 'r';
else if (point.x<csz)
point.corner = 'l';
else
return false;
break;
case 'sheet':
if (point.y<csz)
point.corner+= 't';
else if (point.y>=height-csz)
point.corner+= 'b';
else
return false;
if (point.x<=csz)
point.corner+= 'l';
else if (point.x>=width-csz)
point.corner+= 'r';
else
return false;
break;
}
return (!point.corner || $book.inArray(point.corner, allowedCorners)==-1) ?
false : point;
},
_isIArea: function(e) {
var pos = this.data().f.parent.offset();
e = (isTouch && e.originalEvent) ? e.originalEvent.touches[0] : e;
return flipMethods._cornerActivated.call(this,
{
x: e.pageX-pos.left,
y: e.pageY-pos.top
});
},
_c: function(corner, opts) {
opts = opts || 0;
switch (corner) {
case 'tl':
return point2D(opts, opts);
case 'tr':
return point2D(this.width()-opts, opts);
case 'bl':
return point2D(opts, this.height()-opts);
case 'br':
return point2D(this.width()-opts, this.height()-opts);
case 'l':
return point2D(opts, 0);
case 'r':
return point2D(this.width()-opts, 0);
}
},
_c2: function(corner) {
switch (corner) {
case 'tl':
return point2D(this.width()*2, 0);
case 'tr':
return point2D(-this.width(), 0);
case 'bl':
return point2D(this.width()*2, this.height());
case 'br':
return point2D(-this.width(), this.height());
case 'l':
return point2D(this.width()*2, 0);
case 'r':
return point2D(-this.width(), 0);
}
},
_foldingPage: function() {
var data = this.data().f;
if (!data)
return;
var opts = data.opts;
if (opts.turn) {
data = opts.turn.data();
if (data.display == 'single')
return (opts.next>1 || opts.page>1) ? data.pageObjs[0] : null;
else
return data.pageObjs[opts.next];
}
},
_backGradient: function() {
var data = this.data().f,
turnData = data.opts.turn.data(),
gradient = turnData.opts.gradients && (turnData.display=='single' ||
(data.opts.page!=2 && data.opts.page!=turnData.totalPages-1));
if (gradient && !data.bshadow)
data.bshadow = $book('<div/>', divAtt(0, 0, 1)).
css({'position': , width: this.width(), height: this.height()}).
appendTo(data.parent);
return gradient;
},
type: function () {
return this.data().f.effect;
},
resize: function(full) {
var data = this.data().f,
turnData = data.opts.turn.data(),
width = this.width(),
height = this.height();
switch (data.effect) {
case 'hard':
if (full) {
data.wrapper.css({width: width, height: height});
data.fpage.css({width: width, height: height});
if (turnData.opts.gradients) {
data.ashadow.css({width: width, height: height});
data.bshadow.css({width: width, height: height});
}
}
break;
case 'sheet':
if (full) {
var size = Math.round(Math.sqrt(Math.pow(width, 2)+Math.pow(height, 2)));
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: width, height: height});
if (turnData.opts.gradients)
data.ashadow.css({width: width, height: height});
if (flipMethods._backGradient.call(this))
data.bshadow.css({width: width, height: height});
}
if (data.parent.is(':visible')) {
var offset = findPos(data.parent[0]);
data.fwrapper.css({top: offset.top,
left: offset.left});
//if (data.opts.turn) {
offset = findPos(data.opts.turn[0]);
data.fparent.css({top: -offset.top, left: -offset.left});
//}
}
this.flip('z', data.opts['z-index']);
break; }
},
// Prepares the page by adding a general wrapper and another objects
_addPageWrapper: function() {
var att,
data = this.data().f,
turnData = data.opts.turn.data(),
parent = this.parent();
data.parent = parent;
if (!data.wrapper)
switch (data.effect) {
case 'hard':
var cssProperties = {};
cssProperties[vendor + 'transform-style'] = 'preserve-3d';
cssProperties[vendor + 'backface-visibility'] = 'hidden';
data.wrapper = $book('<div/>', divAtt(0, 0, 2)).
css(cssProperties).
appendTo(parent).
prepend(this);
data.fpage = $book('<div/>', divAtt(0, 0, 1)).
css(cssProperties).
appendTo(parent);
if (turnData.opts.gradients) {
data.ashadow = $book('<div/>', divAtt(0, 0, 0)).
hide().
appendTo(parent);
data.bshadow = $book('<div/>', divAtt(0, 0, 0));
}
break;
case 'sheet':
var width = this.width(),
height = this.height(),
size = Math.round(Math.sqrt(Math.pow(width, 2)+Math.pow(height, 2)));
data.fparent = data.opts.turn.data().fparent;
if (!data.fparent) {
var fparent = $book('<div/>', {css: {'pointer-events': 'none'}}).hide();
fparent.data().flips = 0;
fparent.css(divAtt(0, 0, 'auto', 'visible').css).
appendTo(data.opts.turn);
data.opts.turn.data().fparent = fparent;
data.fparent = fparent;
}
this.css({position: 'absolute', top: 0, left: 0, bottom: 'auto', right: 'auto'});
data.wrapper = $book('<div/>', divAtt(0, 0, this.css('z-index'))).
appendTo(parent).
prepend(this);
data.fwrapper = $book('<div/>', divAtt(parent.offset().top, parent.offset().left)).
hide().
appendTo(data.fparent);
data.fpage = $book('<div/>', divAtt(0, 0, 0, 'visible')).
css({cursor: 'default'}).
appendTo(data.fwrapper);
if (turnData.opts.gradients)
data.ashadow = $book('<div/>', divAtt(0, 0, 1)).
appendTo(data.fpage);
flipMethods.setData.call(this, data);
break; }
// Set size flipMethods.resize.call(this, true);
},
// Takes a 2P point from the screen and applies the transformation
_fold: function(point) {
var data = this.data().f,
turnData = data.opts.turn.data(),
o = flipMethods._c.call(this, point.corner),
width = this.width(),
height = this.height();
switch (data.effect) {
case 'hard':
if (point.corner=='l')
point.x = Math.min(Math.max(point.x, 0), width*2);
else
point.x = Math.max(Math.min(point.x, width), -width);
var leftPos,
shadow,
gradientX,
fpageOrigin,
parentOrigin,
totalPages = turnData.totalPages,
zIndex = data.opts['z-index'] || totalPages,
parentCss = {'overflow': 'visible'},
relX = (o.x) ? (o.x - point.x)/width : point.x/width,
angle = relX * 90,
half = angle<90;
switch (point.corner) {
case 'l':
fpageOrigin = '0% 50%';
parentOrigin = '100% 50%';
if (half) {
leftPos = 0;
shadow = data.opts.next-1>0;
gradientX = 1;
} else {
leftPos = '100%';
shadow = data.opts.page+1<totalPages;
gradientX = 0;
}
break;
case 'r':
fpageOrigin = '100% 50%';
parentOrigin = '0% 50%';
angle = -angle;
width = -width;
if (half) {
leftPos = 0;
shadow = data.opts.next+1<totalPages;
gradientX = 0;
} else {
leftPos = '-100%';
shadow = data.opts.page!=1;
gradientX = 1;
}
break;
}
parentCss[vendor+'perspective-origin'] = parentOrigin;
data.wrapper.transform('rotateY('+angle+'deg)' +
'translate3d(0px, 0px, '+(this.attr('depth')||0)+'px)', parentOrigin);
data.fpage.transform('translateX('+width+'px) rotateY('+(180+angle)+'deg)', fpageOrigin);
data.parent.css(parentCss);
if (half) {
relX = -relX+1;
data.wrapper.css({zIndex: zIndex+1});
data.fpage.css({zIndex: zIndex});
} else {
relX = relX-1;
data.wrapper.css({zIndex: zIndex});
data.fpage.css({zIndex: zIndex+1});
}
if (turnData.opts.gradients) {
if (shadow)
data.ashadow.css({
display: ,
left: leftPos,
backgroundColor: 'rgba(0,0,0,'+(0.5*relX)+')'
}).
transform('rotateY(0deg)');
else
data.ashadow.hide();
data.bshadow.css({opacity:-relX + 1});
if (half) {
if (data.bshadow.parent()[0]!=data.wrapper[0]) {
data.bshadow.appendTo(data.wrapper);
}
} else {
if (data.bshadow.parent()[0]!=data.fpage[0]) {
data.bshadow.appendTo(data.fpage);
}
}
/*data.bshadow.css({
backgroundColor: 'rgba(0,0,0,'+(0.1)+')'
})*/
gradient(data.bshadow, point2D(gradientX * 100, 0), point2D((-gradientX + 1)*100, 0),
[[0, 'rgba(0,0,0,0.3)'],[1, 'rgba(0,0,0,0)']],2);
}
break;
case 'sheet':
var that = this,
a = 0,
alpha = 0,
beta,
px,
gradientEndPointA,
gradientEndPointB,
gradientStartVal,
gradientSize,
gradientOpacity,
shadowVal,
mv = point2D(0, 0),
df = point2D(0, 0),
tr = point2D(0, 0),
folding = flipMethods._foldingPage.call(this),
tan = Math.tan(alpha),
ac = turnData.opts.acceleration,
h = data.wrapper.height(),
top = point.corner.substr(0, 1) == 't',
left = point.corner.substr(1, 1) == 'l',
compute = function() {
var rel = point2D(0, 0);
var middle = point2D(0, 0);
rel.x = (o.x) ? o.x - point.x : point.x;
if (!hasRot) {
rel.y = 0;
} else {
rel.y = (o.y) ? o.y - point.y : point.y;
}
middle.x = (left)? width - rel.x/2 : point.x + rel.x/2;
middle.y = rel.y/2;
var alpha = A90-Math.atan2(rel.y, rel.x),
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)));
a = deg(alpha);
tr = point2D(distance * Math.sin(alpha), distance * Math.cos(alpha));
if (alpha > A90) {
tr.x = tr.x + Math.abs(tr.y * rel.y/rel.x);
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
if (turnData.opts.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))/width;
shadowVal = Math.sin(A90*((far>1) ? 2 - far : far));
gradientOpacity = Math.min(far, 1);
gradientStartVal = gradientSize>100 ? (gradientSize-100)/gradientSize : 0;
gradientEndPointA = point2D(
gradientSize*Math.sin(alpha)/width*100,
gradientSize*Math.cos(alpha)/height*100);
if (flipMethods._backGradient.call(that)) {
gradientEndPointB = point2D(
gradientSize*1.2*Math.sin(alpha)/width*100,
gradientSize*1.2*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,
cssA = {left: f[c[0]], top: f[c[1]], right: f[c[2]], bottom: f[c[3]]},
cssB = {},
aliasingFk = (a!=90 && a!=-90) ? (left ? -1 : 1) : 0,
origin = x[0] + '% ' + x[1] + '%';
that.css(cssA).
transform(rotate(a) + translate(tr.x + aliasingFk, tr.y, ac), origin);
data.fpage.css(cssA).transform(
rotate(a) +
translate(tr.x + df.x - mv.x - width*x[0]/100, tr.y + df.y - mv.y - height*x[1]/100, ac) +
rotate((180/a - 2)*a),
origin);
data.wrapper.transform(translate(-tr.x + mvW-aliasingFk, -tr.y + mvH, ac) + rotate(-a), origin);
data.fwrapper.transform(translate(-tr.x + mv.x + mvW, -tr.y + mv.y + mvH, ac) + rotate(-a), origin);
if (turnData.opts.gradients) {
if (x[0])
gradientEndPointA.x = 100-gradientEndPointA.x;
if (x[1])
gradientEndPointA.y = (100-gradientEndPointA.y);
cssB['box-shadow'] = '0 0 20px rgba(0,0,0,'+(0.5*shadowVal)+')';
folding.css(cssB);
gradient(data.ashadow,
point2D(left?100:0, top?0:100),
point2D(gradientEndPointA.x, gradientEndPointA.y),
[[gradientStartVal, 'rgba(0,0,0,0)'],
[((1-gradientStartVal)*0.8)+gradientStartVal, '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),
[[0.6, 'rgba(0,0,0,0)'],
[0.8, 'rgba(0,0,0,'+(0.3*gradientOpacity)+')'],
[1, 'rgba(0,0,0,0)']
],
3);
}
};
switch (point.corner) {
case 'l' :
break;
case 'r' :
break;
case 'tl' :
point.x = Math.max(point.x, 1);
compute();
transform(tr, [1,0,0,1], [100, 0], a);
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);
break;
case 'bl' :
point.x = Math.max(point.x, 1);
compute();
transform(point2D(tr.x, -tr.y), [1,1,0,0], [100, 100], -a);
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);
break;
}
break; }
data.point = point; },
_moveFoldingPage: function(move) {
var data = this.data().f;
if (!data)
return;
var turn = data.opts.turn,
turnData = turn.data(),
place = turnData.pagePlace;
if (move) {
var nextPage = data.opts.next;
if (place[nextPage]!=data.opts.page) {
if (data.folding)
flipMethods._moveFoldingPage.call(this, false);
var folding = flipMethods._foldingPage.call(this);
folding.appendTo(data.fpage);
place[nextPage] = data.opts.page;
data.folding = nextPage;
}
turn.turn('update');
} else {
if (data.folding) {
if (turnData.pages[data.folding]) {
// If we have flip available
var flipData = turnData.pages[data.folding].data().f;
turnData.pageObjs[data.folding].
appendTo(flipData.wrapper);
} else if (turnData.pageWrap[data.folding]) {
// If we have the pageWrapper
turnData.pageObjs[data.folding].
appendTo(turnData.pageWrap[data.folding]);
}
if (data.folding in place) {
place[data.folding] = data.folding;
}
delete data.folding;
} } },
_showFoldedPage: function(c, animate) {
var folding = flipMethods._foldingPage.call(this),
dd = this.data(),
data = dd.f,
visible = data.visible;
if (folding) {
if (!visible || !data.point || data.point.corner!=c.corner) {
var corner = (
data.status=='hover' ||
data.status=='peel' ||
data.opts.turn.data().mouseAction) ?
c.corner : null;
visible = false;
if (trigger('start', this, [data.opts, corner])=='prevented')
return false;
}
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 (!visible) {
switch(data.effect) {
case 'hard':
data.visible = true;
flipMethods._moveFoldingPage.call(this, true);
data.fpage.show();
if (data.opts.shadows)
data.bshadow.show();
break;
case 'sheet':
data.visible = true;
data.fparent.show().data().flips++;
flipMethods._moveFoldingPage.call(this, true);
data.fwrapper.show();
if (data.bshadow)
data.bshadow.show();
break;
}
}
return true;
}
return false; },
hide: function() {
var data = this.data().f,
turnData = data.opts.turn.data(),
folding = flipMethods._foldingPage.call(this);
switch (data.effect) {
case 'hard':
if (turnData.opts.gradients) {
data.bshadowLoc = 0;
data.bshadow.remove();
data.ashadow.hide();
}
data.wrapper.transform();
data.fpage.hide();
break;
case 'sheet':
if ((--data.fparent.data().flips)===0)
data.fparent.hide();
this.css({left: 0, top: 0, right: 'auto', bottom: 'auto'}).
transform();
data.wrapper.transform();
data.fwrapper.hide();
if (data.bshadow)
data.bshadow.hide();
folding.transform();
break; }
data.visible = false;
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;
data.status = ;
that.flip('hide');
that.trigger('end', [data.opts, 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,
turnData = data.opts.turn.data();
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) ? turnData.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', [data.opts, true]);
},
duration: turnData.opts.duration,
turning: true
});
data.corner = null; },
moving: function() {
return 'effect' in this.data(); },
isTurning: function() {
return this.flip('moving') && this.data().effect.turning;
},
corner: function() {
return this.data().f.corner;
},
_eventStart: function(e) {
var data = this.data().f,
turn = data.opts.turn;
if (!data.corner && !data.disabled && !this.flip('isTurning') &&
data.opts.page==turn.data().pagePlace[data.opts.page])
{
data.corner = flipMethods._isIArea.call(this, e);
if (data.corner && flipMethods._foldingPage.call(this)) {
this.trigger('pressed', [data.point]);
flipMethods._showFoldedPage.call(this, data.corner);
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 (data.hover && !this.data().effect && this.is(':visible')) {
var point = flipMethods._isIArea.call(this, e[0]);
if (point) {
if ((data.effect=='sheet' && point.corner.length==2) || data.effect=='hard') {
data.status = 'hover';
var origin = flipMethods._c.call(this, point.corner, data.opts.cornerSize/2);
point.x = origin.x;
point.y = origin.y;
flipMethods._showFoldedPage.call(this, point, true);
}
} else {
if (data.status=='hover') {
data.status = ;
flipMethods.hideFoldedPage.call(this, true);
}
}
}
}
},
_eventEnd: function() {
var data = this.data().f,
corner = data.corner;
if (!data.disabled && corner) {
if (trigger('released', this, [data.point || corner])!='prevented') {
flipMethods.hideFoldedPage.call(this, true);
}
}
data.corner = null;
},
disable: function(disable) {
flipMethods.setData.call(this, {'disabled': disable});
return this;
},
hover: function(hover) {
flipMethods.setData.call(this, {'hover': hover});
return this;
},
peel: function (corner, animate) {
var data = this.data().f;
if (corner) {
if ($book.inArray(corner, corners.all)==-1)
throw turnError('Corner '+corner+' is not permitted');
if ($book.inArray(corner, flipMethods._cAllowed.call(this))!=-1) {
var point = flipMethods._c.call(this, corner, data.opts.cornerSize/2);
data.status = 'peel';
flipMethods._showFoldedPage.call(this,
{
corner: corner,
x: point.x,
y: point.y
}, animate);
}
} else {
data.status = ;
flipMethods.hideFoldedPage.call(this, animate);
}
return this; }
};
// Processes classes
function dec(that, methods, args) {
if (!args[0] || typeof(args[0])=='object') return methods.init.apply(that, args);
else if (methods[args[0]]) return methods[args[0]].apply(that, Array.prototype.slice.call(args, 1));
else throw turnError(args[0] + ' is not a method or property');
}
// Attributes for a layer
function divAtt(top, left, zIndex, overf) {
return {'css': {
position: 'absolute',
top: top,
left: left,
'overflow': overf || 'hidden',
zIndex: zIndex || 'auto'
}
};
}
// Gets a 2D point from a bezier curve of four points
function bezier(p1, p2, p3, p4, t) {
var a = 1 - t, b = a * a * a, c = t * t * t; return point2D(Math.round(b*p1.x + 3*t*a*a*p2.x + 3*t*t*a*p3.x + c*p4.x), Math.round(b*p1.y + 3*t*a*a*p2.y + 3*t*t*a*p3.y + c*p4.y));
}
// Converts an angle from degrees to radians
function rad(degrees) {
return degrees/180*PI;
}
// Converts an angle from radians to degrees
function deg(radians) {
return radians/PI*180;
}
// Gets a 2D point
function point2D(x, y) {
return {x: x, y: y};
}
// Webkit 534.3 on Android wrongly repaints elements that use overflow:hidden + rotation
function rotationAvailable() {
var parts;
if ((parts = /AppleWebkit\/([0-9\.]+)/i.exec(navigator.userAgent))) {
var webkitVersion = parseFloat(parts[1]);
return (webkitVersion>534.3);
} else {
return true;
}
}
// Returns the traslate value
function translate(x, y, use3d) {
return (has3d && use3d) ? ' translate3d(' + x + 'px,' + y + 'px, 0px) '
: ' translate(' + x + 'px, ' + y + 'px) ';
}
// Returns the rotation value
function rotate(degrees) {
return ' rotate(' + degrees + 'deg) ';
}
// Checks if a property belongs to an object
function has(property, object) {
return Object.prototype.hasOwnProperty.call(object, property);
}
// Gets the CSS3 vendor prefix
function getPrefix() {
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;
}
// Detects the transitionEnd Event
function getTransitionEnd() {
var t,
el = document.createElement('fakeelement'),
transitions = {
'transition':'transitionend',
'OTransition':'oTransitionEnd',
'MSTransition':'transitionend',
'MozTransition':'transitionend',
'WebkitTransition':'webkitTransitionEnd'
};
for (t in transitions) {
if (el.style[t] !== undefined) {
return transitions[t];
}
}
}
// Gradients
function gradient(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 {
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(',') + ')'});
}
}
// Triggers an event
function trigger(eventName, context, args) {
var event = $book.Event(eventName); context.trigger(event, args); if (event.isDefaultPrevented()) return 'prevented'; else if (event.isPropagationStopped()) return 'stopped'; else return ;
}
// JS Errors
function turnError(message) {
function TurnJsError(message) {
this.name = "TurnJsError";
this.message = message;
}
TurnJsError.prototype = new Error(); TurnJsError.prototype.constructor = TurnJsError; return new TurnJsError(message);
}
// Find the offset of an element ignoring its transformation
function findPos(obj) {
var offset = {top: 0, left: 0};
do{
offset.left += obj.offsetLeft;
offset.top += obj.offsetTop;
} while ((obj = obj.offsetParent));
return offset;
}
// Checks if there's hard page compatibility // IE9 is the only browser that does not support hard pages
function hasHardPage() {
return (navigator.userAgent.indexOf('MSIE 9.0')==-1);
}
// Request an animation
window.requestAnim = (function() {
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
// Extend $book.fn
$book.extend($book.fn, {
flip: function() {
return dec($book(this[0]), flipMethods, arguments);
},
turn: function() {
return dec($book(this[0]), 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)
data.effect.stop();
if (point) {
if (!point.to.length) point.to = [point.to];
if (!point.from.length) point.from = [point.from];
var diff = [],
len = point.to.length,
animating = true,
that = this,
time = (new Date()).getTime(),
frame = function() {
if (!data.effect || !animating)
return;
var v = [],
timeDiff = Math.min(point.duration, (new Date()).getTime() - time);
for (var i = 0; i < len; i++)
v.push(data.effect.easing(1, timeDiff, point.from[i], diff[i], point.duration));
point.frame((len==1) ? v[0] : v);
if (timeDiff==point.duration) {
delete data['effect'];
that.data(data);
if (point.complete)
point.complete();
} else {
window.requestAnim(frame);
}
};
for (var i = 0; i < len; i++)
diff.push(point.to[i] - point.from[i]);
data.effect = $book.extend({
stop: function() {
animating = false;
},
easing: function (x, t, b, c, data) {
return c * Math.sqrt(1 - (t=t/data-1)*t) + b;
}
}, point);
this.data(data);
frame();
} else {
delete data['effect'];
} }
});
// Export some globals
$book.isTouch = isTouch; $book.mouseEvents = mouseEvents; $book.cssPrefix = getPrefix; $book.cssTransitionEnd = getTransitionEnd; $book.findPos = findPos;
})(jQuery);