3.0 source code

OfficeWeb/vendor/perfect-scrollbar/src/jquery.mousewheel.js

@@ -0,0 +1,201 @@
+/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
+ * Licensed under the MIT License (LICENSE.txt).
+ *
+ * Version: 3.1.9
+ *
+ * Requires: jQuery 1.2.2+
+ */
+
+(function (factory) {
+    if ( typeof define === 'function' && define.amd ) {
+        // AMD. Register as an anonymous module.
+        define(['jquery'], factory);
+    } else if (typeof exports === 'object') {
+        // Node/CommonJS style for Browserify
+        module.exports = factory;
+    } else {
+        // Browser globals
+        factory(jQuery);
+    }
+}(function ($) {
+
+    var toFix  = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'],
+        toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ?
+                    ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'],
+        slice  = Array.prototype.slice,
+        nullLowestDeltaTimeout, lowestDelta;
+
+    if ( $.event.fixHooks ) {
+        for ( var i = toFix.length; i; ) {
+            $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
+        }
+    }
+
+    var special = $.event.special.mousewheel = {
+        version: '3.1.9',
+
+        setup: function() {
+            if ( this.addEventListener ) {
+                for ( var i = toBind.length; i; ) {
+                    this.addEventListener( toBind[--i], handler, false );
+                }
+            } else {
+                this.onmousewheel = handler;
+            }
+            // Store the line height and page height for this particular element
+            $.data(this, 'mousewheel-line-height', special.getLineHeight(this));
+            $.data(this, 'mousewheel-page-height', special.getPageHeight(this));
+        },
+
+        teardown: function() {
+            if ( this.removeEventListener ) {
+                for ( var i = toBind.length; i; ) {
+                    this.removeEventListener( toBind[--i], handler, false );
+                }
+            } else {
+                this.onmousewheel = null;
+            }
+        },
+
+        getLineHeight: function(elem) {
+            return parseInt($(elem)['offsetParent' in $.fn ? 'offsetParent' : 'parent']().css('fontSize'), 10);
+        },
+
+        getPageHeight: function(elem) {
+            return $(elem).height();
+        },
+
+        settings: {
+            adjustOldDeltas: true
+        }
+    };
+
+    $.fn.extend({
+        mousewheel: function(fn) {
+            return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel');
+        },
+
+        unmousewheel: function(fn) {
+            return this.unbind('mousewheel', fn);
+        }
+    });
+
+
+    function handler(event) {
+        var orgEvent   = event || window.event,
+            args       = slice.call(arguments, 1),
+            delta      = 0,
+            deltaX     = 0,
+            deltaY     = 0,
+            absDelta   = 0;
+        event = $.event.fix(orgEvent);
+        event.type = 'mousewheel';
+
+        // Old school scrollwheel delta
+        if ( 'detail'      in orgEvent ) { deltaY = orgEvent.detail * -1;      }
+        if ( 'wheelDelta'  in orgEvent ) { deltaY = orgEvent.wheelDelta;       }
+        if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY;      }
+        if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }
+
+        // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
+        if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
+            deltaX = deltaY * -1;
+            deltaY = 0;
+        }
+
+        // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
+        delta = deltaY === 0 ? deltaX : deltaY;
+
+        // New school wheel delta (wheel event)
+        if ( 'deltaY' in orgEvent ) {
+            deltaY = orgEvent.deltaY * -1;
+            delta  = deltaY;
+        }
+        if ( 'deltaX' in orgEvent ) {
+            deltaX = orgEvent.deltaX;
+            if ( deltaY === 0 ) { delta  = deltaX * -1; }
+        }
+
+        // No change actually happened, no reason to go any further
+        if ( deltaY === 0 && deltaX === 0 ) { return; }
+
+        // Need to convert lines and pages to pixels if we aren't already in pixels
+        // There are three delta modes:
+        //   * deltaMode 0 is by pixels, nothing to do
+        //   * deltaMode 1 is by lines
+        //   * deltaMode 2 is by pages
+        if ( orgEvent.deltaMode === 1 ) {
+            var lineHeight = $.data(this, 'mousewheel-line-height');
+            delta  *= lineHeight;
+            deltaY *= lineHeight;
+            deltaX *= lineHeight;
+        } else if ( orgEvent.deltaMode === 2 ) {
+            var pageHeight = $.data(this, 'mousewheel-page-height');
+            delta  *= pageHeight;
+            deltaY *= pageHeight;
+            deltaX *= pageHeight;
+        }
+
+        // Store lowest absolute delta to normalize the delta values
+        absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );
+
+        if ( !lowestDelta || absDelta < lowestDelta ) {
+            lowestDelta = absDelta;
+
+            // Adjust older deltas if necessary
+            if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
+                lowestDelta /= 40;
+            }
+        }
+
+        // Adjust older deltas if necessary
+        if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
+            // Divide all the things by 40!
+            delta  /= 40;
+            deltaX /= 40;
+            deltaY /= 40;
+        }
+
+        // Get a whole, normalized value for the deltas
+        delta  = Math[ delta  >= 1 ? 'floor' : 'ceil' ](delta  / lowestDelta);
+        deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta);
+        deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta);
+
+        // Add information to the event object
+        event.deltaX = deltaX;
+        event.deltaY = deltaY;
+        event.deltaFactor = lowestDelta;
+        // Go ahead and set deltaMode to 0 since we converted to pixels
+        // Although this is a little odd since we overwrite the deltaX/Y
+        // properties with normalized deltas.
+        event.deltaMode = 0;
+
+        // Add event and delta to the front of the arguments
+        args.unshift(event, delta, deltaX, deltaY);
+
+        // Clearout lowestDelta after sometime to better
+        // handle multiple device types that give different
+        // a different lowestDelta
+        // Ex: trackpad = 3 and mouse wheel = 120
+        if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
+        nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);
+
+        return ($.event.dispatch || $.event.handle).apply(this, args);
+    }
+
+    function nullLowestDelta() {
+        lowestDelta = null;
+    }
+
+    function shouldAdjustOldDeltas(orgEvent, absDelta) {
+        // If this is an older event and the delta is divisable by 120,
+        // then we are assuming that the browser is treating this as an
+        // older mouse wheel event and that we should divide the deltas
+        // by 40 to try and get a more usable deltaFactor.
+        // Side note, this actually impacts the reported scroll distance
+        // in older browsers and can cause scrolling to be slower than native.
+        // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
+        return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0;
+    }
+
+}));

OfficeWeb/vendor/perfect-scrollbar/src/perfect-scrollbar.css

@@ -0,0 +1,125 @@
+.ps-container .ps-scrollbar-x-rail {
+    position: absolute; /* please don't change 'position' */
+    bottom: 3px; /* there must be 'bottom' for ps-scrollbar-x-rail */
+    height: 8px;
+    -webkit-border-radius: 4px;
+    -moz-border-radius: 4px;
+    border-radius: 4px;
+    opacity: 0;
+    filter: alpha(opacity = 0);
+    -o-transition: background-color .2s linear, opacity .2s linear;
+    -webkit-transition: background-color .2s linear, opacity .2s linear;
+    -moz-transition: background-color .2s linear, opacity .2s linear;
+    transition: background-color .2s linear, opacity .2s linear;
+}
+
+.ps-container:hover .ps-scrollbar-x-rail,
+.ps-container.hover .ps-scrollbar-x-rail {
+    opacity: 0.6;
+    filter: alpha(opacity = 60);
+}
+
+.ps-container .ps-scrollbar-x-rail:hover,
+.ps-container .ps-scrollbar-x-rail.hover {
+    background-color: #eee;
+    opacity: 0.9;
+    filter: alpha(opacity = 90);
+}
+
+.ps-container .ps-scrollbar-x-rail.in-scrolling {
+    background-color: #eee;
+    opacity: 0.9;
+    filter: alpha(opacity = 90);
+}
+
+.ps-container .ps-scrollbar-y-rail {
+    position: absolute; /* please don't change 'position' */
+    right: 3px; /* there must be 'right' for ps-scrollbar-y-rail */
+    width: 8px;
+    -webkit-border-radius: 4px;
+    -moz-border-radius: 4px;
+    border-radius: 4px;
+    opacity: 0;
+    filter: alpha(opacity = 0);
+    -o-transition: background-color .2s linear, opacity .2s linear;
+    -webkit-transition: background-color .2s linear, opacity .2s linear;
+    -moz-transition: background-color .2s linear, opacity .2s linear;
+    transition: background-color .2s linear, opacity .2s linear;
+}
+
+.ps-container:hover .ps-scrollbar-y-rail,
+.ps-container.hover .ps-scrollbar-y-rail {
+    opacity: 0.6;
+    filter: alpha(opacity = 60);
+}
+
+.ps-container .ps-scrollbar-y-rail:hover,
+.ps-container .ps-scrollbar-y-rail.hover {
+    background-color: #eee;
+    opacity: 0.9;
+    filter: alpha(opacity = 90);
+}
+
+.ps-container .ps-scrollbar-y-rail.in-scrolling {
+    background-color: #eee;
+    opacity: 0.9;
+    filter: alpha(opacity = 90);
+}
+
+.ps-container .ps-scrollbar-x {
+    position: absolute; /* please don't change 'position' */
+    bottom: 0; /* there must be 'bottom' for ps-scrollbar-x */
+    height: 8px;
+    background-color: #aaa;
+    -webkit-border-radius: 4px;
+    -moz-border-radius: 4px;
+    border-radius: 4px;
+    -o-transition: background-color .2s linear;
+    -webkit-transition: background-color.2s linear;
+    -moz-transition: background-color .2s linear;
+    transition: background-color .2s linear;
+}
+
+.ps-container.ie6 .ps-scrollbar-x {
+    font-size: 0; /* fixed scrollbar height in xp sp3 ie6 */
+}
+
+.ps-container .ps-scrollbar-x-rail:hover .ps-scrollbar-x,
+.ps-container .ps-scrollbar-x-rail.hover .ps-scrollbar-x {
+    background-color: #999;
+}
+
+.ps-container .ps-scrollbar-y {
+    position: absolute; /* please don't change 'position' */
+    right: 0; /* there must be 'right' for ps-scrollbar-y */
+    width: 8px;
+    background-color: #aaa;
+    -webkit-border-radius: 4px;
+    -moz-border-radius: 4px;
+    border-radius: 4px;
+    -o-transition: background-color .2s linear;
+    -webkit-transition: background-color.2s linear;
+    -moz-transition: background-color .2s linear;
+    transition: background-color .2s linear;
+}
+
+.ps-container.ie6 .ps-scrollbar-y {
+    font-size: 0; /* fixed scrollbar height in xp sp3 ie6 */
+}
+
+.ps-container .ps-scrollbar-y-rail:hover .ps-scrollbar-y,
+.ps-container .ps-scrollbar-y-rail.hover .ps-scrollbar-y {
+    background-color: #999;
+}
+
+.ps-container.ie .ps-scrollbar-x,
+.ps-container.ie .ps-scrollbar-y {
+    visibility: hidden;
+}
+
+.ps-container.ie:hover .ps-scrollbar-x,
+.ps-container.ie:hover .ps-scrollbar-y,
+.ps-container.ie.hover .ps-scrollbar-x,
+.ps-container.ie.hover .ps-scrollbar-y {
+    visibility: visible;
+}

OfficeWeb/vendor/perfect-scrollbar/src/perfect-scrollbar.js

@@ -0,0 +1,607 @@
+/* Copyright (c) 2012, 2014 Hyeonje Alex Jun and other contributors
+ * Licensed under the MIT License
+ */
+(function (factory) {
+  'use strict';
+
+  if (typeof define === 'function' && define.amd) {
+    // AMD. Register as an anonymous module.
+    define(['jquery'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS
+    factory(require('jquery'));
+  } else {
+    // Browser globals
+    factory(jQuery);
+  }
+}(function ($) {
+  'use strict';
+
+  // The default settings for the plugin
+  var defaultSettings = {
+    wheelSpeed: 10,
+    wheelPropagation: false,
+    minScrollbarLength: null,
+    useBothWheelAxes: false,
+    useKeyboard: true,
+    suppressScrollX: false,
+    suppressScrollY: false,
+    scrollXMarginOffset: 0,
+    scrollYMarginOffset: 0,
+    includePadding: false
+  };
+
+  var getEventClassName = (function () {
+    var incrementingId = 0;
+    return function () {
+      var id = incrementingId;
+      incrementingId += 1;
+      return '.perfect-scrollbar-' + id;
+    };
+  }());
+
+  $.fn.perfectScrollbar = function (suppliedSettings, option) {
+
+    return this.each(function () {
+      // Use the default settings
+      var settings = $.extend(true, {}, defaultSettings),
+          $this = $(this);
+
+      if (typeof suppliedSettings === "object") {
+        // But over-ride any supplied
+        $.extend(true, settings, suppliedSettings);
+      } else {
+        // If no settings were supplied, then the first param must be the option
+        option = suppliedSettings;
+      }
+
+      // Catch options
+
+      if (option === 'update') {
+        if ($this.data('perfect-scrollbar-update')) {
+          $this.data('perfect-scrollbar-update')();
+        }
+        return $this;
+      }
+      else if (option === 'destroy') {
+        if ($this.data('perfect-scrollbar-destroy')) {
+          $this.data('perfect-scrollbar-destroy')();
+        }
+        return $this;
+      }
+
+      if ($this.data('perfect-scrollbar')) {
+        // if there's already perfect-scrollbar
+        return $this.data('perfect-scrollbar');
+      }
+
+
+      // Or generate new perfectScrollbar
+
+      // Set class to the container
+      $this.addClass('ps-container');
+
+      var $scrollbarXRail = $("<div class='ps-scrollbar-x-rail'></div>").appendTo($this),
+          $scrollbarYRail = $("<div class='ps-scrollbar-y-rail'></div>").appendTo($this),
+          $scrollbarX = $("<div class='ps-scrollbar-x'></div>").appendTo($scrollbarXRail),
+          $scrollbarY = $("<div class='ps-scrollbar-y'></div>").appendTo($scrollbarYRail),
+          scrollbarXActive,
+          scrollbarYActive,
+          containerWidth,
+          containerHeight,
+          contentWidth,
+          contentHeight,
+          scrollbarXWidth,
+          scrollbarXLeft,
+          scrollbarXBottom = parseInt($scrollbarXRail.css('bottom'), 10),
+          scrollbarYHeight,
+          scrollbarYTop,
+          scrollbarYRight = parseInt($scrollbarYRail.css('right'), 10),
+          eventClassName = getEventClassName();
+
+      var updateContentScrollTop = function (currentTop, deltaY) {
+        var newTop = currentTop + deltaY,
+            maxTop = containerHeight - scrollbarYHeight;
+
+        if (newTop < 0) {
+          scrollbarYTop = 0;
+        }
+        else if (newTop > maxTop) {
+          scrollbarYTop = maxTop;
+        }
+        else {
+          scrollbarYTop = newTop;
+        }
+
+        var scrollTop = parseInt(scrollbarYTop * (contentHeight - containerHeight) / (containerHeight - scrollbarYHeight), 10);
+        $this.scrollTop(scrollTop);
+        $scrollbarXRail.css({bottom: scrollbarXBottom - scrollTop});
+      };
+
+      var updateContentScrollLeft = function (currentLeft, deltaX) {
+        var newLeft = currentLeft + deltaX,
+            maxLeft = containerWidth - scrollbarXWidth;
+
+        if (newLeft < 0) {
+          scrollbarXLeft = 0;
+        }
+        else if (newLeft > maxLeft) {
+          scrollbarXLeft = maxLeft;
+        }
+        else {
+          scrollbarXLeft = newLeft;
+        }
+
+        var scrollLeft = parseInt(scrollbarXLeft * (contentWidth - containerWidth) / (containerWidth - scrollbarXWidth), 10);
+        $this.scrollLeft(scrollLeft);
+        $scrollbarYRail.css({right: scrollbarYRight - scrollLeft});
+      };
+
+      var getSettingsAdjustedThumbSize = function (thumbSize) {
+        if (settings.minScrollbarLength) {
+          thumbSize = Math.max(thumbSize, settings.minScrollbarLength);
+        }
+        return thumbSize;
+      };
+
+      var updateScrollbarCss = function () {
+        $scrollbarXRail.css({left: $this.scrollLeft(), bottom: scrollbarXBottom - $this.scrollTop(), width: containerWidth, display: scrollbarXActive ? "inherit": "none"});
+        $scrollbarYRail.css({top: $this.scrollTop(), right: scrollbarYRight - $this.scrollLeft(), height: containerHeight, display: scrollbarYActive ? "inherit": "none"});
+        $scrollbarX.css({left: scrollbarXLeft, width: scrollbarXWidth});
+        $scrollbarY.css({top: scrollbarYTop, height: scrollbarYHeight});
+      };
+
+      var updateBarSizeAndPosition = function () {
+        containerWidth = settings.includePadding ? $this.innerWidth() : $this.width();
+        containerHeight = settings.includePadding ? $this.innerHeight() : $this.height();
+        contentWidth = $this.prop('scrollWidth');
+        contentHeight = $this.prop('scrollHeight');
+
+        if (!settings.suppressScrollX && containerWidth + settings.scrollXMarginOffset < contentWidth) {
+          scrollbarXActive = true;
+          scrollbarXWidth = getSettingsAdjustedThumbSize(parseInt(containerWidth * containerWidth / contentWidth, 10));
+          scrollbarXLeft = parseInt($this.scrollLeft() * (containerWidth - scrollbarXWidth) / (contentWidth - containerWidth), 10);
+        }
+        else {
+          scrollbarXActive = false;
+          scrollbarXWidth = 0;
+          scrollbarXLeft = 0;
+          $this.scrollLeft(0);
+        }
+
+        if (!settings.suppressScrollY && containerHeight + settings.scrollYMarginOffset < contentHeight) {
+          scrollbarYActive = true;
+          scrollbarYHeight = getSettingsAdjustedThumbSize(parseInt(containerHeight * containerHeight / contentHeight, 10));
+          scrollbarYTop = parseInt($this.scrollTop() * (containerHeight - scrollbarYHeight) / (contentHeight - containerHeight), 10);
+        }
+        else {
+          scrollbarYActive = false;
+          scrollbarYHeight = 0;
+          scrollbarYTop = 0;
+          $this.scrollTop(0);
+        }
+
+        if (scrollbarYTop >= containerHeight - scrollbarYHeight) {
+          scrollbarYTop = containerHeight - scrollbarYHeight;
+        }
+        if (scrollbarXLeft >= containerWidth - scrollbarXWidth) {
+          scrollbarXLeft = containerWidth - scrollbarXWidth;
+        }
+
+        updateScrollbarCss();
+      };
+
+      var bindMouseScrollXHandler = function () {
+        var currentLeft,
+            currentPageX;
+
+        $scrollbarX.bind('mousedown' + eventClassName, function (e) {
+          currentPageX = e.pageX;
+          currentLeft = $scrollbarX.position().left;
+          $scrollbarXRail.addClass('in-scrolling');
+          e.stopPropagation();
+          e.preventDefault();
+        });
+
+        $(document).bind('mousemove' + eventClassName, function (e) {
+          if ($scrollbarXRail.hasClass('in-scrolling')) {
+            updateContentScrollLeft(currentLeft, e.pageX - currentPageX);
+            e.stopPropagation();
+            e.preventDefault();
+          }
+        });
+
+        $(document).bind('mouseup' + eventClassName, function (e) {
+          if ($scrollbarXRail.hasClass('in-scrolling')) {
+            $scrollbarXRail.removeClass('in-scrolling');
+          }
+        });
+
+        currentLeft =
+        currentPageX = null;
+      };
+
+      var bindMouseScrollYHandler = function () {
+        var currentTop,
+            currentPageY;
+
+        $scrollbarY.bind('mousedown' + eventClassName, function (e) {
+          currentPageY = e.pageY;
+          currentTop = $scrollbarY.position().top;
+          $scrollbarYRail.addClass('in-scrolling');
+          e.stopPropagation();
+          e.preventDefault();
+        });
+
+        $(document).bind('mousemove' + eventClassName, function (e) {
+          if ($scrollbarYRail.hasClass('in-scrolling')) {
+            updateContentScrollTop(currentTop, e.pageY - currentPageY);
+            e.stopPropagation();
+            e.preventDefault();
+          }
+        });
+
+        $(document).bind('mouseup' + eventClassName, function (e) {
+          if ($scrollbarYRail.hasClass('in-scrolling')) {
+            $scrollbarYRail.removeClass('in-scrolling');
+          }
+        });
+
+        currentTop =
+        currentPageY = null;
+      };
+
+      // check if the default scrolling should be prevented.
+      var shouldPreventDefault = function (deltaX, deltaY) {
+        var scrollTop = $this.scrollTop();
+        if (deltaX === 0) {
+          if (!scrollbarYActive) {
+            return false;
+          }
+          if ((scrollTop === 0 && deltaY > 0) || (scrollTop >= contentHeight - containerHeight && deltaY < 0)) {
+            return !settings.wheelPropagation;
+          }
+        }
+
+        var scrollLeft = $this.scrollLeft();
+        if (deltaY === 0) {
+          if (!scrollbarXActive) {
+            return false;
+          }
+          if ((scrollLeft === 0 && deltaX < 0) || (scrollLeft >= contentWidth - containerWidth && deltaX > 0)) {
+            return !settings.wheelPropagation;
+          }
+        }
+        return true;
+      };
+
+      // bind handlers
+      var bindMouseWheelHandler = function () {
+        // FIXME: Backward compatibility.
+        // After e.deltaFactor applied, wheelSpeed should have smaller value.
+        // Currently, there's no way to change the settings after the scrollbar initialized.
+        // But if the way is implemented in the future, wheelSpeed should be reset.
+        settings.wheelSpeed /= 10;
+
+        var shouldPrevent = false;
+        $this.bind('mousewheel' + eventClassName, function (e, deprecatedDelta, deprecatedDeltaX, deprecatedDeltaY) {
+          var deltaX = e.deltaX * e.deltaFactor || deprecatedDeltaX,
+              deltaY = e.deltaY * e.deltaFactor || deprecatedDeltaY;
+
+          shouldPrevent = false;
+          if (!settings.useBothWheelAxes) {
+            // deltaX will only be used for horizontal scrolling and deltaY will
+            // only be used for vertical scrolling - this is the default
+            $this.scrollTop($this.scrollTop() - (deltaY * settings.wheelSpeed));
+            $this.scrollLeft($this.scrollLeft() + (deltaX * settings.wheelSpeed));
+          } else if (scrollbarYActive && !scrollbarXActive) {
+            // only vertical scrollbar is active and useBothWheelAxes option is
+            // active, so let's scroll vertical bar using both mouse wheel axes
+            if (deltaY) {
+              $this.scrollTop($this.scrollTop() - (deltaY * settings.wheelSpeed));
+            } else {
+              $this.scrollTop($this.scrollTop() + (deltaX * settings.wheelSpeed));
+            }
+            shouldPrevent = true;
+          } else if (scrollbarXActive && !scrollbarYActive) {
+            // useBothWheelAxes and only horizontal bar is active, so use both
+            // wheel axes for horizontal bar
+            if (deltaX) {
+              $this.scrollLeft($this.scrollLeft() + (deltaX * settings.wheelSpeed));
+            } else {
+              $this.scrollLeft($this.scrollLeft() - (deltaY * settings.wheelSpeed));
+            }
+            shouldPrevent = true;
+          }
+
+          // update bar position
+          updateBarSizeAndPosition();
+
+          shouldPrevent = (shouldPrevent || shouldPreventDefault(deltaX, deltaY));
+          if (shouldPrevent) {
+            e.stopPropagation();
+            e.preventDefault();
+          }
+        });
+
+        // fix Firefox scroll problem
+        $this.bind('MozMousePixelScroll' + eventClassName, function (e) {
+          if (shouldPrevent) {
+            e.preventDefault();
+          }
+        });
+      };
+
+      var bindKeyboardHandler = function () {
+        var hovered = false;
+        $this.bind('mouseenter' + eventClassName, function (e) {
+          hovered = true;
+        });
+        $this.bind('mouseleave' + eventClassName, function (e) {
+          hovered = false;
+        });
+
+        var shouldPrevent = false;
+        $(document).bind('keydown' + eventClassName, function (e) {
+          if (!hovered || $(document.activeElement).is(":input,[contenteditable]")) {
+            return;
+          }
+
+          var deltaX = 0,
+              deltaY = 0;
+
+          switch (e.which) {
+          case 37: // left
+            deltaX = -30;
+            break;
+          case 38: // up
+            deltaY = 30;
+            break;
+          case 39: // right
+            deltaX = 30;
+            break;
+          case 40: // down
+            deltaY = -30;
+            break;
+          case 33: // page up
+            deltaY = 90;
+            break;
+          case 32: // space bar
+          case 34: // page down
+            deltaY = -90;
+            break;
+          case 35: // end
+            deltaY = -containerHeight;
+            break;
+          case 36: // home
+            deltaY = containerHeight;
+            break;
+          default:
+            return;
+          }
+
+          $this.scrollTop($this.scrollTop() - deltaY);
+          $this.scrollLeft($this.scrollLeft() + deltaX);
+
+          shouldPrevent = shouldPreventDefault(deltaX, deltaY);
+          if (shouldPrevent) {
+            e.preventDefault();
+          }
+        });
+      };
+
+      var bindRailClickHandler = function () {
+        var stopPropagation = function (e) { e.stopPropagation(); };
+
+        $scrollbarY.bind('click' + eventClassName, stopPropagation);
+        $scrollbarYRail.bind('click' + eventClassName, function (e) {
+          var halfOfScrollbarLength = parseInt(scrollbarYHeight / 2, 10),
+              positionTop = e.pageY - $scrollbarYRail.offset().top - halfOfScrollbarLength,
+              maxPositionTop = containerHeight - scrollbarYHeight,
+              positionRatio = positionTop / maxPositionTop;
+
+          if (positionRatio < 0) {
+            positionRatio = 0;
+          } else if (positionRatio > 1) {
+            positionRatio = 1;
+          }
+
+          $this.scrollTop((contentHeight - containerHeight) * positionRatio);
+        });
+
+        $scrollbarX.bind('click' + eventClassName, stopPropagation);
+        $scrollbarXRail.bind('click' + eventClassName, function (e) {
+          var halfOfScrollbarLength = parseInt(scrollbarXWidth / 2, 10),
+              positionLeft = e.pageX - $scrollbarXRail.offset().left - halfOfScrollbarLength,
+              maxPositionLeft = containerWidth - scrollbarXWidth,
+              positionRatio = positionLeft / maxPositionLeft;
+
+          if (positionRatio < 0) {
+            positionRatio = 0;
+          } else if (positionRatio > 1) {
+            positionRatio = 1;
+          }
+
+          $this.scrollLeft((contentWidth - containerWidth) * positionRatio);
+        });
+      };
+
+      // bind mobile touch handler
+      var bindMobileTouchHandler = function () {
+        var applyTouchMove = function (differenceX, differenceY) {
+          $this.scrollTop($this.scrollTop() - differenceY);
+          $this.scrollLeft($this.scrollLeft() - differenceX);
+
+          // update bar position
+          updateBarSizeAndPosition();
+        };
+
+        var startCoords = {},
+            startTime = 0,
+            speed = {},
+            breakingProcess = null,
+            inGlobalTouch = false;
+
+        $(window).bind("touchstart" + eventClassName, function (e) {
+          inGlobalTouch = true;
+        });
+        $(window).bind("touchend" + eventClassName, function (e) {
+          inGlobalTouch = false;
+        });
+
+        $this.bind("touchstart" + eventClassName, function (e) {
+          var touch = e.originalEvent.targetTouches[0];
+
+          startCoords.pageX = touch.pageX;
+          startCoords.pageY = touch.pageY;
+
+          startTime = (new Date()).getTime();
+
+          if (breakingProcess !== null) {
+            clearInterval(breakingProcess);
+          }
+
+          e.stopPropagation();
+        });
+        $this.bind("touchmove" + eventClassName, function (e) {
+          if (!inGlobalTouch && e.originalEvent.targetTouches.length === 1) {
+            var touch = e.originalEvent.targetTouches[0];
+
+            var currentCoords = {};
+            currentCoords.pageX = touch.pageX;
+            currentCoords.pageY = touch.pageY;
+
+            var differenceX = currentCoords.pageX - startCoords.pageX,
+              differenceY = currentCoords.pageY - startCoords.pageY;
+
+            applyTouchMove(differenceX, differenceY);
+            startCoords = currentCoords;
+
+            var currentTime = (new Date()).getTime();
+
+            var timeGap = currentTime - startTime;
+            if (timeGap > 0) {
+              speed.x = differenceX / timeGap;
+              speed.y = differenceY / timeGap;
+              startTime = currentTime;
+            }
+
+            e.preventDefault();
+          }
+        });
+        $this.bind("touchend" + eventClassName, function (e) {
+          clearInterval(breakingProcess);
+          breakingProcess = setInterval(function () {
+            if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
+              clearInterval(breakingProcess);
+              return;
+            }
+
+            applyTouchMove(speed.x * 30, speed.y * 30);
+
+            speed.x *= 0.8;
+            speed.y *= 0.8;
+          }, 10);
+        });
+      };
+
+      var bindScrollHandler = function () {
+        $this.bind('scroll' + eventClassName, function (e) {
+          updateBarSizeAndPosition();
+        });
+      };
+
+      var destroy = function () {
+        $this.unbind(eventClassName);
+        $(window).unbind(eventClassName);
+        $(document).unbind(eventClassName);
+        $this.data('perfect-scrollbar', null);
+        $this.data('perfect-scrollbar-update', null);
+        $this.data('perfect-scrollbar-destroy', null);
+        $scrollbarX.remove();
+        $scrollbarY.remove();
+        $scrollbarXRail.remove();
+        $scrollbarYRail.remove();
+
+        // clean all variables
+        $scrollbarX =
+        $scrollbarY =
+        containerWidth =
+        containerHeight =
+        contentWidth =
+        contentHeight =
+        scrollbarXWidth =
+        scrollbarXLeft =
+        scrollbarXBottom =
+        scrollbarYHeight =
+        scrollbarYTop =
+        scrollbarYRight = null;
+      };
+
+      var ieSupport = function (version) {
+        $this.addClass('ie').addClass('ie' + version);
+
+        var bindHoverHandlers = function () {
+          var mouseenter = function () {
+            $(this).addClass('hover');
+          };
+          var mouseleave = function () {
+            $(this).removeClass('hover');
+          };
+          $this.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
+          $scrollbarXRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
+          $scrollbarYRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
+          $scrollbarX.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
+          $scrollbarY.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
+        };
+
+        var fixIe6ScrollbarPosition = function () {
+          updateScrollbarCss = function () {
+            $scrollbarX.css({left: scrollbarXLeft + $this.scrollLeft(), bottom: scrollbarXBottom, width: scrollbarXWidth});
+            $scrollbarY.css({top: scrollbarYTop + $this.scrollTop(), right: scrollbarYRight, height: scrollbarYHeight});
+            $scrollbarX.hide().show();
+            $scrollbarY.hide().show();
+          };
+        };
+
+        if (version === 6) {
+          bindHoverHandlers();
+          fixIe6ScrollbarPosition();
+        }
+      };
+
+      var supportsTouch = (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch);
+
+      var initialize = function () {
+        var ieMatch = navigator.userAgent.toLowerCase().match(/(msie) ([\w.]+)/);
+        if (ieMatch && ieMatch[1] === 'msie') {
+          // must be executed at first, because 'ieSupport' may addClass to the container
+          ieSupport(parseInt(ieMatch[2], 10));
+        }
+
+        updateBarSizeAndPosition();
+        bindScrollHandler();
+        bindMouseScrollXHandler();
+        bindMouseScrollYHandler();
+        bindRailClickHandler();
+        if (supportsTouch) {
+          bindMobileTouchHandler();
+        }
+        if ($this.mousewheel) {
+          bindMouseWheelHandler();
+        }
+        if (settings.useKeyboard) {
+          bindKeyboardHandler();
+        }
+        $this.data('perfect-scrollbar', $this);
+        $this.data('perfect-scrollbar-update', updateBarSizeAndPosition);
+        $this.data('perfect-scrollbar-destroy', destroy);
+      };
+
+      // initialize
+      initialize();
+
+      return $this;
+    });
+  };
+}));