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screen-roller.js
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screen-roller.js
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/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId])
/******/ return installedModules[moduleId].exports;
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ exports: {},
/******/ id: moduleId,
/******/ loaded: false
/******/ };
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/ // Flag the module as loaded
/******/ module.loaded = true;
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/ // Load entry module and return exports
/******/ return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ function(module, exports, __webpack_require__) {
var modules = __webpack_require__(1);
modules.keys().forEach(function(name){
name && modules(name);
});
/***/ },
/* 1 */
/***/ function(module, exports, __webpack_require__) {
var map = {
"./animation/slide/slide-animation.css": 2,
"./animation/slide/slide-animation.js": 6,
"./content/simple-page/simple-page.css": 7,
"./content/simple-page/simple-page.js": 9,
"./control/keyboard/keyboard.js": 10,
"./control/touch/touch.js": 11,
"./control/wheel/wheel.js": 12,
"./core/core.css": 13,
"./core/core.js": 15,
"./navigation/arrows/arrow.js": 16,
"./navigation/hash/hash.js": 17,
"./navigation/menu/menu.js": 18
};
function webpackContext(req) {
return __webpack_require__(webpackContextResolve(req));
};
function webpackContextResolve(req) {
return map[req] || (function() { throw new Error("Cannot find module '" + req + "'.") }());
};
webpackContext.keys = function webpackContextKeys() {
return Object.keys(map);
};
webpackContext.resolve = webpackContextResolve;
module.exports = webpackContext;
webpackContext.id = 1;
/***/ },
/* 2 */
/***/ function(module, exports) {
// removed by extract-text-webpack-plugin
/***/ },
/* 3 */,
/* 4 */,
/* 5 */,
/* 6 */
/***/ function(module, exports) {
(function($) {
var MODULE_TYPE = 'animation';
var MODULE_NAME = 'slide-animation';
var PLAGIN_NAME = 'screenroller' + '-' + MODULE_NAME;
var EVENT_MOVE_SCREEN = 'move-screen.' + MODULE_NAME;
var EVENT_TURNED_ON = 'module-has-turned-on.' + MODULE_NAME;
var EVENT_TOUCH_START = 'touch-start';
var EVENT_TOUCH_MOVE = 'touch-move';
var EVENT_TOUCH_END = 'touch-end';
var EVENT_TOUCH_CANSEL = 'touch-cansel';
var EVENT_RESTORE_OFFSET = 'restore-offset';
var EVENT_FINISHED_ANIMATION = 'finished-animation';
var _setStyles = function() {
this.core.$wrap.addClass(MODULE_NAME);
};
var _removeStyles = function() {
this.core.$wrap.removeClass(MODULE_NAME);
this.core.$el.attr('style', '');
};
var _getTransitionValue = function() {
var axis = this.core.options.axis;
var $el = this.core.$el;
var transformValues = $el.css('transform').split(', ');
if(!transformValues || transformValues.length < 2) {
return 0;
}
return axis === 'x' ? parseInt(transformValues[ 4 ]) : parseInt(transformValues[ 5 ]);
};
var _cssTransitionByIndex = function(index) {
return ({
y: 'translate3d(0, ' + index * -100 + '%, 0)',
x: 'translate3d(' + index * -100 + '%, 0, 0)'
})[this.core.options.axis];
};
var _buildTransitionByValue = function(value) {
return ({
x: ('translate3d(' + value + 'px, 0, 0)'),
y: ('translate3d(0, ' + value + 'px, 0)')
})[this.core.options.axis];
};
var _execTouchOffset = function(offest) {
var $el = this.core.$el;
var value = _buildTransitionByValue.call(this, this.touchStart - offest);
$el.css('transition-duration', '0s');
$el.css('transform', value);
};
var _animate = function(data) {
var module = this;
var index = data.index;
var value = _cssTransitionByIndex.call(this, data.index);
var speed = data.speed === 0 ? 1 : data.speed;
var $el = this.core.$el;
$el.css('transition-duration', speed / 1000 + 's');
$el.css('transform', value);
$el.off('transitionend webkitTransitionEnd');
$el.on('transitionend webkitTransitionEnd', function() {
$el.trigger(EVENT_FINISHED_ANIMATION, {
direction: index,
initiator: MODULE_NAME,
unique: module.core.unique
});
});
};
var _addListeners = function() {
var module = this;
var $el = this.core.$el;
$el.on(EVENT_MOVE_SCREEN, function(e, data) {
if(module.enabled && data.unique === module.core.unique) {
_animate.call(module, data);
return false;
}
});
$el.on(EVENT_TURNED_ON, function(e, data) {
if(data.initiator === MODULE_NAME) {
_animate.call(module, {
index: module.core.currentScreen,
speed: 0
});
}
});
$el.on(EVENT_TOUCH_START, function() {
module.touchStart = _getTransitionValue.call(module);
$el.css('transition-duration', '0s');
$el.css('transform', _buildTransitionByValue.call(module, module.touchStart));
});
$el.on(EVENT_TOUCH_END, function() {
delete module.touchStart;
});
$el.on(EVENT_TOUCH_CANSEL, function() {
delete module.touchStart;
});
$el.on(EVENT_TOUCH_MOVE, function(e, data) {
_execTouchOffset.call(module, data.offset);
});
$el.on(EVENT_RESTORE_OFFSET, function() {
_animate.call(module, {
index: module.core.currentScreen,
speed: module.core.options.speed / 2
});
});
};
var _removeListeners = function() {
var $el = this.core.$el;
$el.off(EVENT_MOVE_SCREEN);
$el.off(EVENT_TURNED_ON);
};
function SlideAnimation(params) {
this.core = params.roller;
this.type = MODULE_TYPE;
this.enable();
_addListeners.call(this);
}
SlideAnimation.prototype.enable = function() {
if(!this.enabled) {
this.enabled = true;
this.core.$el.trigger(EVENT_TURNED_ON, {
initiator: MODULE_NAME,
type: MODULE_TYPE
});
_setStyles.call(this);
}
};
SlideAnimation.prototype.disable = function() {
_removeStyles.call(this);
this.enabled = false;
};
SlideAnimation.prototype.destruct = function() {
this.disable();
_removeStyles.call(this);
_removeListeners.call(this);
delete this.core.modules[ MODULE_NAME ];
};
$.fn[ PLAGIN_NAME ] = function() {
this.roller.modules[ MODULE_NAME ] = new SlideAnimation({
$el: this,
roller: this.roller
});
return this;
};
}(jQuery));
/***/ },
/* 7 */
/***/ function(module, exports) {
// removed by extract-text-webpack-plugin
/***/ },
/* 8 */,
/* 9 */
/***/ function(module, exports) {
(function($) {
var MODULE_NAME = 'simple-page';
var PLAGIN_NAME = 'screenroller' + '-' + MODULE_NAME;
var EVENT_RESIZE = 'resize.' + MODULE_NAME;
var EVENT_ORINTATIONCHANGE = 'orientationchange.' + MODULE_NAME;
var EVENT_SCROLL = 'scroll.' + MODULE_NAME;
var EVENT_MOVE_SCREEN = 'move-screen.' + MODULE_NAME;
var EVENT_TURNED_ON = 'module-has-turned-on.' + MODULE_NAME;
var EVENT_TURNED_OFF = 'module-has-turned-off.' + MODULE_NAME;
var EVENT_REQUEST_MOVE = 'request-move';
var EVENT_SCREEN_CHANGED = 'screen-has-changed';
var MODULE_TYPE = 'content';
var LOCKED_MODULES = [ 'animation', 'control' ];
var DEFAULT_OPTIONS = {
minWidth: 0,
minHeight: 0
};
var _setStyles = function() {
this.core.$wrap.addClass(MODULE_NAME);
};
var _removeStyles = function() {
this.core.$wrap.removeClass(MODULE_NAME);
var module = this;
setTimeout(function() {
module.core.$wrap.scrollTop(0);
}, 10);
};
var _disableOtherModules = function() {
var roller = this.core;
var damp = this.damp = [];
Object.keys(roller.modules).forEach(function(name) {
var module = roller.modules[ name ];
if(module.enabled) {
if(LOCKED_MODULES.indexOf(module.type) >= 0) {
if(module.enabled) {
module.disable();
damp.push(name);
}
}
}
});
};
var _enableOtherModules = function() {
var module = this;
var roller = module.core;
if(module.damp) {
while(module.damp.length) {
roller.modules[ module.damp.shift() ].enable();
}
delete module.damp;
}
};
var _calcOffsetsScreen = function() {
var common = 0;
var offsets = this.core.$screens.map(function(index, screen) {
return common = parseInt($(screen).height()) + common;
}).toArray();
offsets.unshift(0);
return offsets;
};
var _detectCurrentScreen = function(offsets) {
var scrollTop = this.core.$wrap.scrollTop();
for(var i = 0; i < offsets.length; i++) {
if(scrollTop > offsets[ i ] && scrollTop < offsets[ i + 1 ]) {
return i;
}
}
};
var _scrollTo = function(index, speed) {
var $wrap = this.core.$wrap;
var $el = this.core.$el;
var value = this.offsets[ index ];
var module = this;
if(!speed || speed == 0) {
return $wrap.scrollTop(value);
}
$wrap.stop().animate({ scrollTop: value }, speed, function() {
$el.trigger(EVENT_SCREEN_CHANGED, {
direction: index,
initiator: 'MODULE_NAME',
unique: module.core.unique
});
});
};
var _trackPosition = function() {
this.offsets = this.offsets || _calcOffsetsScreen.call(this);
var offsets = this.offsets.slice();
var currentScreen = this.core.currentScreen;
var screenInView = _detectCurrentScreen.call(this, offsets);
var module = this;
if(screenInView !== 'undefined' && screenInView !== currentScreen) {
this.core.$el.trigger(EVENT_REQUEST_MOVE, {
direction: screenInView,
speed: 0,
initiator: MODULE_NAME,
unique: module.core.unique
});
}
};
var _processingResize = function() {
var module = this;
var $wrap = this.core.$wrap;
var wrapWidth = $wrap.width();
var wrapHeight = $wrap.height();
var minWidth = module.minWidth;
var minHeight = module.minHeight;
if(module.enabled) {
module.offsets = _calcOffsetsScreen.call(module);
}
if((wrapWidth < minWidth || wrapHeight < minHeight) && !module.enabled) {
module.enable();
module.core.$el.trigger(EVENT_TURNED_ON, {
initiator: MODULE_NAME,
type: MODULE_TYPE,
unique: module.core.unique
});
setTimeout(function() {
module.offsets = _calcOffsetsScreen.call(module);
_scrollTo.call(module, module.core.currentScreen);
}, 10);
}
if((wrapWidth > minWidth) && (wrapHeight > minHeight) && (module.enabled)) {
module.disable();
module.core.$el.trigger(EVENT_TURNED_OFF, {
initiator: MODULE_NAME,
type: MODULE_TYPE,
unique: module.core.unique
});
}
};
var _addListeners = function() {
var module = this;
var $el = this.core.$el;
var $wrap = this.core.$wrap;
var $win = this.core.nodes.$win;
$el.on(EVENT_MOVE_SCREEN, function(e, data) {
if(module.enabled && data.initiator !== MODULE_NAME) {
_scrollTo.call(module, data.index, data.speed);
}
});
$wrap.on(EVENT_SCROLL, function() {
if(module.enabled) {
_trackPosition.call(module);
}
});
//https://github.com/Promo/screen-roller/issues/9
$win.on(EVENT_ORINTATIONCHANGE, function() {
if(module.watching) {
$win.scrollTop(0);
setTimeout(function(){
$win.scrollTop(0);
}, 500);
}
});
$win.on(EVENT_RESIZE, function() {
if(module.watching) {
_processingResize.call(module);
}
});
};
var _removeListeners = function() {
var $el = this.core.$el;
var $wrap = this.core.$wrap;
var $win = this.core.nodes.$win;
$el.off(EVENT_MOVE_SCREEN);
$wrap.off(EVENT_SCROLL);
$win.off(EVENT_RESIZE);
$win.off(EVENT_ORINTATIONCHANGE); //https://github.com/Promo/screen-roller/issues/9
};
function SimplePage(params) {
var options = $.extend(true, {}, DEFAULT_OPTIONS, params.options);
this.core = params.roller;
this.minWidth = options.minWidth;
this.minHeight = options.minHeight;
this.type = MODULE_TYPE;
this.onWatching();
this.disable();
_addListeners.call(this);
this.core.nodes.$win.trigger(EVENT_RESIZE);
}
SimplePage.prototype.enable = function() {
_setStyles.call(this);
_disableOtherModules.call(this);
this.enabled = true;
};
SimplePage.prototype.disable = function() {
_removeStyles.call(this);
_enableOtherModules.call(this);
this.enabled = false;
};
SimplePage.prototype.onWatching = function() {
this.watching = true;
};
SimplePage.prototype.offWatching = function() {
this.watching = false;
};
SimplePage.prototype.destruct = function() {
_removeListeners.call(this);
delete this.core.modules[ MODULE_NAME ];
};
$.fn[ PLAGIN_NAME ] = function(options) {
this.roller.modules[ MODULE_NAME ] = new SimplePage({
$el: this,
roller: this.roller,
options: options
});
return this;
};
}(jQuery));
/***/ },
/* 10 */
/***/ function(module, exports) {
(function($) {
var MODULE_NAME = 'keyboard';
var PLAGIN_NAME = 'screenroller' + '-' + MODULE_NAME;
var MODULE_TYPE = 'control';
var EVENT_KEY = 'keydown.' + MODULE_NAME;
var EVENT_REQUEST_MOVE = 'request-move';
var PAGEUP = 33;
var PAGEDOWM = 34;
var END = 35;
var HOME = 36;
var ARROWUP = 38;
var ARROWDOWN = 40;
var DEFAULT_OPTIONS = {
next: [ PAGEDOWM, ARROWDOWN ],
prev: [ PAGEUP, ARROWUP ],
last: [ END ],
first: [ HOME ]
};
var _addListeners = function() {
var module = this;
var $win = this.core.nodes.$win;
$win.on(EVENT_KEY, function(e) {
if(module.enabled) {
_processingEvent.call(module, e);
}
});
};
var _removeListeners = function() {
var $win = this.core.nodes.$win;
$win.off(EVENT_KEY);
};
var _processingEvent = function(e) {
var $el = this.core.$el;
var code = e.keyCode;
var next = this.next;
var prev = this.prev;
var last = this.last;
var first = this.first;
var module = this;
if(next && next.indexOf(code) >= 0) {
$el.trigger(EVENT_REQUEST_MOVE, {
direction: 'next',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
if(prev && prev.indexOf(code) >= 0) {
$el.trigger(EVENT_REQUEST_MOVE, {
direction: 'prev',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
if(last && last.indexOf(code) >= 0) {
$el.trigger(EVENT_REQUEST_MOVE, {
direction: 'last',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
if(first && first.indexOf(code) >= 0) {
$el.trigger(EVENT_REQUEST_MOVE, {
direction: 'first',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
};
function Keyboard(params) {
var options = $.extend(true, {}, DEFAULT_OPTIONS, params.options);
this.core = params.roller;
this.next = options.next;
this.prev = options.prev;
this.first = options.first;
this.last = options.last;
this.type = MODULE_TYPE;
this.enable();
_addListeners.call(this);
}
Keyboard.prototype.disable = function() {
this.enabled = false;
};
Keyboard.prototype.enable = function() {
this.enabled = true;
};
Keyboard.prototype.destruct = function() {
_removeListeners.call(this);
this.disable();
delete this.core.modules[ MODULE_NAME ];
};
$.fn[ PLAGIN_NAME ] = function(options) {
this.roller.modules[ MODULE_NAME ] = new Keyboard({
$el: this,
roller: this.roller,
options: options
});
return this;
};
}(jQuery));
/***/ },
/* 11 */
/***/ function(module, exports) {
(function($) {
var MODULE_NAME = 'touch';
var PLAGIN_NAME = 'screenroller' + '-' + MODULE_NAME;
var MODULE_TYPE = 'control';
var INNER_EVENT_TOUCH_START = 'touch-start';
var INNER_EVENT_TOUCH_MOVE = 'touch-move';
var INNER_EVENT_TOUCH_END = 'touch-end';
var INNER_EVENT_REQUEST_MOVE = 'request-move';
var INNER_EVENT_RESTORE_OFFSET = 'restore-offset';
var EVENT_MOUSE_DOWN = 'mousedown.' + MODULE_NAME;
var EVENT_MOUSE_MOVE = 'mousemove.' + MODULE_NAME;
var EVENT_MOUSE_UP = 'mouseup.' + MODULE_NAME;
var EVENT_MOUSE_LEAVE = 'mouseleave.' + MODULE_NAME;
var EVENT_TOUCH_START = 'touchstart.' + MODULE_NAME;
var EVENT_TOUCH_MOVE = 'touchmove.' + MODULE_NAME;
var EVENT_TOUCH_END = 'touchend.' + MODULE_NAME;
var EVENT_TOUCH_CANSEL = 'touchcancel.' + MODULE_NAME;
var DEFAULT_OPTIONS = {
mouseEmulate: true
};
var _addListeners = function() {
var module = this;
var $wrap = module.core.$wrap;
$wrap.on(EVENT_TOUCH_START, function(e) {
_processTouchStart.call(module, e);
});
$wrap.on(EVENT_TOUCH_MOVE, function(e) {
_processTouchMove.call(module, e);
return false;
});
$wrap.on(EVENT_TOUCH_END, function(e) {
_processTouchEnd.call(module, e);
});
$wrap.on(EVENT_TOUCH_CANSEL, function(e) {
_processTouchEnd.call(module, e);
});
if(module.mouseEmulate) {
$wrap.on(EVENT_MOUSE_DOWN, function(e) {
module.isMouseDown = true;
_processTouchStart.call(module, e);
});
$wrap.on(EVENT_MOUSE_MOVE, function(e) {
if(module.isMouseDown) {
_processTouchMove.call(module, e);
}
});
$wrap.on(EVENT_MOUSE_UP, function(e) {
if(module.isMouseDown) {
_processTouchEnd.call(module, e);
module.isMouseDown = false;
}
});
$wrap.on(EVENT_MOUSE_LEAVE, function(e) {
if(module.isMouseDown) {
_processTouchEnd.call(module, e);
module.isMouseDown = false;
}
});
}
};
var _removeListeners = function() {
var $wrap = this.core.$wrap;
$wrap.off(EVENT_TOUCH_START);
$wrap.off(EVENT_TOUCH_MOVE);
$wrap.off(EVENT_TOUCH_END);
$wrap.off(EVENT_TOUCH_CANSEL);
if(this.mouseEmulate) {
$wrap.off(EVENT_MOUSE_DOWN);
$wrap.off(EVENT_MOUSE_MOVE);
$wrap.off(EVENT_MOUSE_UP);
$wrap.off(EVENT_MOUSE_LEAVE);
}
};
var _processTouchStart = function(e) {
var module = this;
var $el = module.core.$el;
module.lastMovement = '';
module.startPoint = _getcurrentPoint.call(this, e);
$el.trigger(INNER_EVENT_TOUCH_START, {
initiator: MODULE_NAME,
startPoint: module.startPoint,
event: e,
unique: module.core.unique
});
};
var _processTouchMove = function(e) {
var module = this;
var $el = this.core.$el;
var currentPoint = _getcurrentPoint.call(this, e);
var lastPoint = this.lastPoint || currentPoint;
var startPoint = this.startPoint;
var offset = startPoint - currentPoint;
this.lastMovement = _getMoveDirection.call(this, lastPoint, currentPoint);
this.lastPoint = currentPoint;
$el.trigger(INNER_EVENT_TOUCH_MOVE, {
initiator: MODULE_NAME,
offset: offset,
event: e,
unique: module.core.unique
});
};
var _processTouchEnd = function(e) {
var module = this;
var $el = this.core.$el;
var startPoint = this.startPoint;
var finishPoint = this.lastPoint;
//if lastPoint is empty then it was tap
if(!finishPoint) {
return;
}
//if touchemove ~ tap then restore
var diff = startPoint - finishPoint;
if(diff > 0) {
//todo move 4 in params
if(diff < 4) {
$el.trigger(INNER_EVENT_RESTORE_OFFSET, {
initiator: MODULE_NAME,
unique: module.core.unique
});
}
} else {
if(diff > -4) {
$el.trigger(INNER_EVENT_RESTORE_OFFSET, {
initiator: MODULE_NAME,
unique: module.core.unique
});
}
}
var generalMovement = _getMoveDirection.call(this, startPoint, finishPoint);
var lastMovement = this.lastMovement || generalMovement;
delete this.startPoint;
delete this.lastPoint;
$el.trigger(INNER_EVENT_TOUCH_END, {
generalMovement: generalMovement,
lastMovement: lastMovement,
event: e,
initiator: MODULE_NAME
});
if(generalMovement !== lastMovement) {
$el.trigger(INNER_EVENT_RESTORE_OFFSET, {
initiator: MODULE_NAME,
unique: module.core.unique
});
}
if(generalMovement === lastMovement) {
var current = this.core.currentScreen;
var count = this.core.countScreens;
var currentIsFirst = (current === 0);
var currentIsLast = (current === count - 1);
if(generalMovement === 'next' && !currentIsLast) {
return $el.trigger(INNER_EVENT_REQUEST_MOVE, {
direction: 'next',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
if(generalMovement === 'prev' && !currentIsFirst) {
return $el.trigger(INNER_EVENT_REQUEST_MOVE, {
direction: 'prev',
initiator: MODULE_NAME,
unique: module.core.unique
});
}
$el.trigger(INNER_EVENT_RESTORE_OFFSET, {
initiator: MODULE_NAME,
unique: module.core.unique
});
}
};
var _getMoveDirection = function(startPoint, endPoint) {
if(startPoint === endPoint) {
return this.lastMovement;
}
return endPoint < startPoint ? 'next' : 'prev';
};
var _getcurrentPoint = function(e) {
var axis = this.core.options.axis;
return e[ 'originalEvent' ][ 'page' + axis.toUpperCase() ] ||
e[ 'originalEvent' ].changedTouches[ 0 ][ 'page' + axis.toUpperCase() ]; //android chrome
};
function Touch(params) {
var options = $.extend(true, {}, DEFAULT_OPTIONS, params.options);
this.core = params.roller;
this.type = MODULE_TYPE;
this.mouseEmulate = options.mouseEmulate;
this.enable();
}
Touch.prototype.enable = function() {
_addListeners.call(this);
this.enabled = true;
};
Touch.prototype.disable = function() {
_removeListeners.call(this);
this.enabled = false;
};
Touch.prototype.destruct = function() {
_removeListeners.call(this);
delete this.core.modules[ MODULE_NAME ];
};
$.fn[ PLAGIN_NAME ] = function(options) {
this.roller.modules[ MODULE_NAME ] = new Touch({
roller: this.roller,
options: options
});
return this;
};
}(jQuery));
/***/ },
/* 12 */
/***/ function(module, exports) {
var WheelIndicator = (function(win, doc) {
var eventWheel = 'onwheel' in doc ? 'wheel' : 'mousewheel',
DEFAULTS = {
callback: function() {
},
elem: doc,
preventMouse: true
};
function Module(options) {
this._options = extend(DEFAULTS, options);
this._deltaArray = [ 0, 0, 0 ];
this._isAcceleration = false;
this._isStopped = true;
this._direction = '';
this._timer = '';
this._isWorking = true;
var self = this;
this._wheelHandler = function(event) {
if(self._isWorking) {
processDelta.call(self, event);
if(self._options.preventMouse) {
preventDefault(event);
}
event.stopPropagation();
}
};
addEvent(this._options.elem, eventWheel, this._wheelHandler);
}
Module.prototype = {
constructor: Module,
turnOn: function() {
this._isWorking = true;
return this;
},
turnOff: function() {
this._isWorking = false;
return this;
},
setOptions: function(options) {
this._options = extend(this._options, options);
return this;
},
getOption: function(option) {
var neededOption = this._options[ option ];
if(neededOption !== undefined) {
return neededOption;
}
throw new Error('Unknown option');
},
destroy: function() {
removeEvent(this._options.elem, eventWheel, this._wheelHandler);
return this;
}
};
function triggerEvent(event) {
event.direction = this._direction;
this._options.callback.call(this, event);
}