chushihua

node_modules/normalize-wheel/src/ExecutionEnvironment.js

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+/**
+ * Copyright (c) 2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule ExecutionEnvironment
+ */
+
+/*jslint evil: true */
+
+'use strict';
+
+var canUseDOM = !!(
+  typeof window !== 'undefined' &&
+  window.document &&
+  window.document.createElement
+);
+
+/**
+ * Simple, lightweight module assisting with the detection and context of
+ * Worker. Helps avoid circular dependencies and allows code to reason about
+ * whether or not they are in a Worker, even if they never include the main
+ * `ReactWorker` dependency.
+ */
+var ExecutionEnvironment = {
+
+  canUseDOM: canUseDOM,
+
+  canUseWorkers: typeof Worker !== 'undefined',
+
+  canUseEventListeners:
+    canUseDOM && !!(window.addEventListener || window.attachEvent),
+
+  canUseViewport: canUseDOM && !!window.screen,
+
+  isInWorker: !canUseDOM // For now, this is true - might change in the future.
+
+};
+
+module.exports = ExecutionEnvironment;

node_modules/normalize-wheel/src/UserAgent_DEPRECATED.js

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+/**
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ *
+ * @providesModule UserAgent_DEPRECATED
+ */
+
+/**
+ *  Provides entirely client-side User Agent and OS detection. You should prefer
+ *  the non-deprecated UserAgent module when possible, which exposes our
+ *  authoritative server-side PHP-based detection to the client.
+ *
+ *  Usage is straightforward:
+ *
+ *    if (UserAgent_DEPRECATED.ie()) {
+ *      //  IE
+ *    }
+ *
+ *  You can also do version checks:
+ *
+ *    if (UserAgent_DEPRECATED.ie() >= 7) {
+ *      //  IE7 or better
+ *    }
+ *
+ *  The browser functions will return NaN if the browser does not match, so
+ *  you can also do version compares the other way:
+ *
+ *    if (UserAgent_DEPRECATED.ie() < 7) {
+ *      //  IE6 or worse
+ *    }
+ *
+ *  Note that the version is a float and may include a minor version number,
+ *  so you should always use range operators to perform comparisons, not
+ *  strict equality.
+ *
+ *  **Note:** You should **strongly** prefer capability detection to browser
+ *  version detection where it's reasonable:
+ *
+ *    http://www.quirksmode.org/js/support.html
+ *
+ *  Further, we have a large number of mature wrapper functions and classes
+ *  which abstract away many browser irregularities. Check the documentation,
+ *  grep for things, or ask on javascript@lists.facebook.com before writing yet
+ *  another copy of "event || window.event".
+ *
+ */
+
+var _populated = false;
+
+// Browsers
+var _ie, _firefox, _opera, _webkit, _chrome;
+
+// Actual IE browser for compatibility mode
+var _ie_real_version;
+
+// Platforms
+var _osx, _windows, _linux, _android;
+
+// Architectures
+var _win64;
+
+// Devices
+var _iphone, _ipad, _native;
+
+var _mobile;
+
+function _populate() {
+  if (_populated) {
+    return;
+  }
+
+  _populated = true;
+
+  // To work around buggy JS libraries that can't handle multi-digit
+  // version numbers, Opera 10's user agent string claims it's Opera
+  // 9, then later includes a Version/X.Y field:
+  //
+  // Opera/9.80 (foo) Presto/2.2.15 Version/10.10
+  var uas = navigator.userAgent;
+  var agent = /(?:MSIE.(\d+\.\d+))|(?:(?:Firefox|GranParadiso|Iceweasel).(\d+\.\d+))|(?:Opera(?:.+Version.|.)(\d+\.\d+))|(?:AppleWebKit.(\d+(?:\.\d+)?))|(?:Trident\/\d+\.\d+.*rv:(\d+\.\d+))/.exec(uas);
+  var os    = /(Mac OS X)|(Windows)|(Linux)/.exec(uas);
+
+  _iphone = /\b(iPhone|iP[ao]d)/.exec(uas);
+  _ipad = /\b(iP[ao]d)/.exec(uas);
+  _android = /Android/i.exec(uas);
+  _native = /FBAN\/\w+;/i.exec(uas);
+  _mobile = /Mobile/i.exec(uas);
+
+  // Note that the IE team blog would have you believe you should be checking
+  // for 'Win64; x64'.  But MSDN then reveals that you can actually be coming
+  // from either x64 or ia64;  so ultimately, you should just check for Win64
+  // as in indicator of whether you're in 64-bit IE.  32-bit IE on 64-bit
+  // Windows will send 'WOW64' instead.
+  _win64 = !!(/Win64/.exec(uas));
+
+  if (agent) {
+    _ie = agent[1] ? parseFloat(agent[1]) : (
+          agent[5] ? parseFloat(agent[5]) : NaN);
+    // IE compatibility mode
+    if (_ie && document && document.documentMode) {
+      _ie = document.documentMode;
+    }
+    // grab the "true" ie version from the trident token if available
+    var trident = /(?:Trident\/(\d+.\d+))/.exec(uas);
+    _ie_real_version = trident ? parseFloat(trident[1]) + 4 : _ie;
+
+    _firefox = agent[2] ? parseFloat(agent[2]) : NaN;
+    _opera   = agent[3] ? parseFloat(agent[3]) : NaN;
+    _webkit  = agent[4] ? parseFloat(agent[4]) : NaN;
+    if (_webkit) {
+      // We do not add the regexp to the above test, because it will always
+      // match 'safari' only since 'AppleWebKit' appears before 'Chrome' in
+      // the userAgent string.
+      agent = /(?:Chrome\/(\d+\.\d+))/.exec(uas);
+      _chrome = agent && agent[1] ? parseFloat(agent[1]) : NaN;
+    } else {
+      _chrome = NaN;
+    }
+  } else {
+    _ie = _firefox = _opera = _chrome = _webkit = NaN;
+  }
+
+  if (os) {
+    if (os[1]) {
+      // Detect OS X version.  If no version number matches, set _osx to true.
+      // Version examples:  10, 10_6_1, 10.7
+      // Parses version number as a float, taking only first two sets of
+      // digits.  If only one set of digits is found, returns just the major
+      // version number.
+      var ver = /(?:Mac OS X (\d+(?:[._]\d+)?))/.exec(uas);
+
+      _osx = ver ? parseFloat(ver[1].replace('_', '.')) : true;
+    } else {
+      _osx = false;
+    }
+    _windows = !!os[2];
+    _linux   = !!os[3];
+  } else {
+    _osx = _windows = _linux = false;
+  }
+}
+
+var UserAgent_DEPRECATED = {
+
+  /**
+   *  Check if the UA is Internet Explorer.
+   *
+   *
+   *  @return float|NaN Version number (if match) or NaN.
+   */
+  ie: function() {
+    return _populate() || _ie;
+  },
+
+  /**
+   * Check if we're in Internet Explorer compatibility mode.
+   *
+   * @return bool true if in compatibility mode, false if
+   * not compatibility mode or not ie
+   */
+  ieCompatibilityMode: function() {
+    return _populate() || (_ie_real_version > _ie);
+  },
+
+
+  /**
+   * Whether the browser is 64-bit IE.  Really, this is kind of weak sauce;  we
+   * only need this because Skype can't handle 64-bit IE yet.  We need to remove
+   * this when we don't need it -- tracked by #601957.
+   */
+  ie64: function() {
+    return UserAgent_DEPRECATED.ie() && _win64;
+  },
+
+  /**
+   *  Check if the UA is Firefox.
+   *
+   *
+   *  @return float|NaN Version number (if match) or NaN.
+   */
+  firefox: function() {
+    return _populate() || _firefox;
+  },
+
+
+  /**
+   *  Check if the UA is Opera.
+   *
+   *
+   *  @return float|NaN Version number (if match) or NaN.
+   */
+  opera: function() {
+    return _populate() || _opera;
+  },
+
+
+  /**
+   *  Check if the UA is WebKit.
+   *
+   *
+   *  @return float|NaN Version number (if match) or NaN.
+   */
+  webkit: function() {
+    return _populate() || _webkit;
+  },
+
+  /**
+   *  For Push
+   *  WILL BE REMOVED VERY SOON. Use UserAgent_DEPRECATED.webkit
+   */
+  safari: function() {
+    return UserAgent_DEPRECATED.webkit();
+  },
+
+  /**
+   *  Check if the UA is a Chrome browser.
+   *
+   *
+   *  @return float|NaN Version number (if match) or NaN.
+   */
+  chrome : function() {
+    return _populate() || _chrome;
+  },
+
+
+  /**
+   *  Check if the user is running Windows.
+   *
+   *  @return bool `true' if the user's OS is Windows.
+   */
+  windows: function() {
+    return _populate() || _windows;
+  },
+
+
+  /**
+   *  Check if the user is running Mac OS X.
+   *
+   *  @return float|bool   Returns a float if a version number is detected,
+   *                       otherwise true/false.
+   */
+  osx: function() {
+    return _populate() || _osx;
+  },
+
+  /**
+   * Check if the user is running Linux.
+   *
+   * @return bool `true' if the user's OS is some flavor of Linux.
+   */
+  linux: function() {
+    return _populate() || _linux;
+  },
+
+  /**
+   * Check if the user is running on an iPhone or iPod platform.
+   *
+   * @return bool `true' if the user is running some flavor of the
+   *    iPhone OS.
+   */
+  iphone: function() {
+    return _populate() || _iphone;
+  },
+
+  mobile: function() {
+    return _populate() || (_iphone || _ipad || _android || _mobile);
+  },
+
+  nativeApp: function() {
+    // webviews inside of the native apps
+    return _populate() || _native;
+  },
+
+  android: function() {
+    return _populate() || _android;
+  },
+
+  ipad: function() {
+    return _populate() || _ipad;
+  }
+};
+
+module.exports = UserAgent_DEPRECATED;

node_modules/normalize-wheel/src/isEventSupported.js

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+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule isEventSupported
+ */
+
+'use strict';
+
+var ExecutionEnvironment = require('./ExecutionEnvironment');
+
+var useHasFeature;
+if (ExecutionEnvironment.canUseDOM) {
+  useHasFeature =
+    document.implementation &&
+    document.implementation.hasFeature &&
+    // always returns true in newer browsers as per the standard.
+    // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature
+    document.implementation.hasFeature('', '') !== true;
+}
+
+/**
+ * Checks if an event is supported in the current execution environment.
+ *
+ * NOTE: This will not work correctly for non-generic events such as `change`,
+ * `reset`, `load`, `error`, and `select`.
+ *
+ * Borrows from Modernizr.
+ *
+ * @param {string} eventNameSuffix Event name, e.g. "click".
+ * @param {?boolean} capture Check if the capture phase is supported.
+ * @return {boolean} True if the event is supported.
+ * @internal
+ * @license Modernizr 3.0.0pre (Custom Build) | MIT
+ */
+function isEventSupported(eventNameSuffix, capture) {
+  if (!ExecutionEnvironment.canUseDOM ||
+      capture && !('addEventListener' in document)) {
+    return false;
+  }
+
+  var eventName = 'on' + eventNameSuffix;
+  var isSupported = eventName in document;
+
+  if (!isSupported) {
+    var element = document.createElement('div');
+    element.setAttribute(eventName, 'return;');
+    isSupported = typeof element[eventName] === 'function';
+  }
+
+  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {
+    // This is the only way to test support for the `wheel` event in IE9+.
+    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');
+  }
+
+  return isSupported;
+}
+
+module.exports = isEventSupported;

node_modules/normalize-wheel/src/normalizeWheel.js

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+/**
+ * Copyright (c) 2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule normalizeWheel
+ * @typechecks
+ */
+
+'use strict';
+
+var UserAgent_DEPRECATED = require('./UserAgent_DEPRECATED');
+
+var isEventSupported = require('./isEventSupported');
+
+
+// Reasonable defaults
+var PIXEL_STEP  = 10;
+var LINE_HEIGHT = 40;
+var PAGE_HEIGHT = 800;
+
+/**
+ * Mouse wheel (and 2-finger trackpad) support on the web sucks.  It is
+ * complicated, thus this doc is long and (hopefully) detailed enough to answer
+ * your questions.
+ *
+ * If you need to react to the mouse wheel in a predictable way, this code is
+ * like your bestest friend. * hugs *
+ *
+ * As of today, there are 4 DOM event types you can listen to:
+ *
+ *   'wheel'                -- Chrome(31+), FF(17+), IE(9+)
+ *   'mousewheel'           -- Chrome, IE(6+), Opera, Safari
+ *   'MozMousePixelScroll'  -- FF(3.5 only!) (2010-2013) -- don't bother!
+ *   'DOMMouseScroll'       -- FF(0.9.7+) since 2003
+ *
+ * So what to do?  The is the best:
+ *
+ *   normalizeWheel.getEventType();
+ *
+ * In your event callback, use this code to get sane interpretation of the
+ * deltas.  This code will return an object with properties:
+ *
+ *   spinX   -- normalized spin speed (use for zoom) - x plane
+ *   spinY   -- " - y plane
+ *   pixelX  -- normalized distance (to pixels) - x plane
+ *   pixelY  -- " - y plane
+ *
+ * Wheel values are provided by the browser assuming you are using the wheel to
+ * scroll a web page by a number of lines or pixels (or pages).  Values can vary
+ * significantly on different platforms and browsers, forgetting that you can
+ * scroll at different speeds.  Some devices (like trackpads) emit more events
+ * at smaller increments with fine granularity, and some emit massive jumps with
+ * linear speed or acceleration.
+ *
+ * This code does its best to normalize the deltas for you:
+ *
+ *   - spin is trying to normalize how far the wheel was spun (or trackpad
+ *     dragged).  This is super useful for zoom support where you want to
+ *     throw away the chunky scroll steps on the PC and make those equal to
+ *     the slow and smooth tiny steps on the Mac. Key data: This code tries to
+ *     resolve a single slow step on a wheel to 1.
+ *
+ *   - pixel is normalizing the desired scroll delta in pixel units.  You'll
+ *     get the crazy differences between browsers, but at least it'll be in
+ *     pixels!
+ *
+ *   - positive value indicates scrolling DOWN/RIGHT, negative UP/LEFT.  This
+ *     should translate to positive value zooming IN, negative zooming OUT.
+ *     This matches the newer 'wheel' event.
+ *
+ * Why are there spinX, spinY (or pixels)?
+ *
+ *   - spinX is a 2-finger side drag on the trackpad, and a shift + wheel turn
+ *     with a mouse.  It results in side-scrolling in the browser by default.
+ *
+ *   - spinY is what you expect -- it's the classic axis of a mouse wheel.
+ *
+ *   - I dropped spinZ/pixelZ.  It is supported by the DOM 3 'wheel' event and
+ *     probably is by browsers in conjunction with fancy 3D controllers .. but
+ *     you know.
+ *
+ * Implementation info:
+ *
+ * Examples of 'wheel' event if you scroll slowly (down) by one step with an
+ * average mouse:
+ *
+ *   OS X + Chrome  (mouse)     -    4   pixel delta  (wheelDelta -120)
+ *   OS X + Safari  (mouse)     -  N/A   pixel delta  (wheelDelta  -12)
+ *   OS X + Firefox (mouse)     -    0.1 line  delta  (wheelDelta  N/A)
+ *   Win8 + Chrome  (mouse)     -  100   pixel delta  (wheelDelta -120)
+ *   Win8 + Firefox (mouse)     -    3   line  delta  (wheelDelta -120)
+ *
+ * On the trackpad:
+ *
+ *   OS X + Chrome  (trackpad)  -    2   pixel delta  (wheelDelta   -6)
+ *   OS X + Firefox (trackpad)  -    1   pixel delta  (wheelDelta  N/A)
+ *
+ * On other/older browsers.. it's more complicated as there can be multiple and
+ * also missing delta values.
+ *
+ * The 'wheel' event is more standard:
+ *
+ * http://www.w3.org/TR/DOM-Level-3-Events/#events-wheelevents
+ *
+ * The basics is that it includes a unit, deltaMode (pixels, lines, pages), and
+ * deltaX, deltaY and deltaZ.  Some browsers provide other values to maintain
+ * backward compatibility with older events.  Those other values help us
+ * better normalize spin speed.  Example of what the browsers provide:
+ *
+ *                          | event.wheelDelta | event.detail
+ *        ------------------+------------------+--------------
+ *          Safari v5/OS X  |       -120       |       0
+ *          Safari v5/Win7  |       -120       |       0
+ *         Chrome v17/OS X  |       -120       |       0
+ *         Chrome v17/Win7  |       -120       |       0
+ *                IE9/Win7  |       -120       |   undefined
+ *         Firefox v4/OS X  |     undefined    |       1
+ *         Firefox v4/Win7  |     undefined    |       3
+ *
+ */
+function normalizeWheel(/*object*/ event) /*object*/ {
+  var sX = 0, sY = 0,       // spinX, spinY
+      pX = 0, pY = 0;       // pixelX, pixelY
+
+  // Legacy
+  if ('detail'      in event) { sY = event.detail; }
+  if ('wheelDelta'  in event) { sY = -event.wheelDelta / 120; }
+  if ('wheelDeltaY' in event) { sY = -event.wheelDeltaY / 120; }
+  if ('wheelDeltaX' in event) { sX = -event.wheelDeltaX / 120; }
+
+  // side scrolling on FF with DOMMouseScroll
+  if ( 'axis' in event && event.axis === event.HORIZONTAL_AXIS ) {
+    sX = sY;
+    sY = 0;
+  }
+
+  pX = sX * PIXEL_STEP;
+  pY = sY * PIXEL_STEP;
+
+  if ('deltaY' in event) { pY = event.deltaY; }
+  if ('deltaX' in event) { pX = event.deltaX; }
+
+  if ((pX || pY) && event.deltaMode) {
+    if (event.deltaMode == 1) {          // delta in LINE units
+      pX *= LINE_HEIGHT;
+      pY *= LINE_HEIGHT;
+    } else {                             // delta in PAGE units
+      pX *= PAGE_HEIGHT;
+      pY *= PAGE_HEIGHT;
+    }
+  }
+
+  // Fall-back if spin cannot be determined
+  if (pX && !sX) { sX = (pX < 1) ? -1 : 1; }
+  if (pY && !sY) { sY = (pY < 1) ? -1 : 1; }
+
+  return { spinX  : sX,
+           spinY  : sY,
+           pixelX : pX,
+           pixelY : pY };
+}
+
+
+/**
+ * The best combination if you prefer spinX + spinY normalization.  It favors
+ * the older DOMMouseScroll for Firefox, as FF does not include wheelDelta with
+ * 'wheel' event, making spin speed determination impossible.
+ */
+normalizeWheel.getEventType = function() /*string*/ {
+  return (UserAgent_DEPRECATED.firefox())
+           ? 'DOMMouseScroll'
+           : (isEventSupported('wheel'))
+               ? 'wheel'
+               : 'mousewheel';
+};
+
+module.exports = normalizeWheel;