ZeroClipboard.js

/*!
 * ZeroClipboard
 * The ZeroClipboard library provides an easy way to copy text to the clipboard using an invisible Adobe Flash movie and a JavaScript interface.
 * Copyright (c) 2009-2014 Jon Rohan, James M. Greene
 * Licensed MIT
 * http://zeroclipboard.org/
 * v2.2.0-beta.3
 */
(function(window, undefined) {
  "use strict";
  /**
 * Store references to critically important global functions that may be
 * overridden on certain web pages.
 */
  var _window = window, _document = _window.document, _navigator = _window.navigator, _setTimeout = _window.setTimeout, _clearTimeout = _window.clearTimeout, _setInterval = _window.setInterval, _clearInterval = _window.clearInterval, _getComputedStyle = _window.getComputedStyle, _encodeURIComponent = _window.encodeURIComponent, _ActiveXObject = _window.ActiveXObject, _Error = _window.Error, _parseInt = _window.Number.parseInt || _window.parseInt, _parseFloat = _window.Number.parseFloat || _window.parseFloat, _isNaN = _window.Number.isNaN || _window.isNaN, _now = _window.Date.now, _keys = _window.Object.keys, _defineProperty = _window.Object.defineProperty, _hasOwn = _window.Object.prototype.hasOwnProperty, _slice = _window.Array.prototype.slice, _unwrap = function() {
    var unwrapper = function(el) {
      return el;
    };
    if (typeof _window.wrap === "function" && typeof _window.unwrap === "function") {
      try {
        var div = _document.createElement("div");
        var unwrappedDiv = _window.unwrap(div);
        if (div.nodeType === 1 && unwrappedDiv && unwrappedDiv.nodeType === 1) {
          unwrapper = _window.unwrap;
        }
      } catch (e) {}
    }
    return unwrapper;
  }();
  /**
 * Convert an `arguments` object into an Array.
 *
 * @returns The arguments as an Array
 * @private
 */
  var _args = function(argumentsObj) {
    return _slice.call(argumentsObj, 0);
  };
  /**
 * Shallow-copy the owned, enumerable properties of one object over to another, similar to jQuery's `$.extend`.
 *
 * @returns The target object, augmented
 * @private
 */
  var _extend = function() {
    var i, len, arg, prop, src, copy, args = _args(arguments), target = args[0] || {};
    for (i = 1, len = args.length; i < len; i++) {
      if ((arg = args[i]) != null) {
        for (prop in arg) {
          if (_hasOwn.call(arg, prop)) {
            src = target[prop];
            copy = arg[prop];
            if (target !== copy && copy !== undefined) {
              target[prop] = copy;
            }
          }
        }
      }
    }
    return target;
  };
  /**
 * Return a deep copy of the source object or array.
 *
 * @returns Object or Array
 * @private
 */
  var _deepCopy = function(source) {
    var copy, i, len, prop;
    if (typeof source !== "object" || source == null || typeof source.nodeType === "number") {
      copy = source;
    } else if (typeof source.length === "number") {
      copy = [];
      for (i = 0, len = source.length; i < len; i++) {
        if (_hasOwn.call(source, i)) {
          copy[i] = _deepCopy(source[i]);
        }
      }
    } else {
      copy = {};
      for (prop in source) {
        if (_hasOwn.call(source, prop)) {
          copy[prop] = _deepCopy(source[prop]);
        }
      }
    }
    return copy;
  };
  /**
 * Makes a shallow copy of `obj` (like `_extend`) but filters its properties based on a list of `keys` to keep.
 * The inverse of `_omit`, mostly. The big difference is that these properties do NOT need to be enumerable to
 * be kept.
 *
 * @returns A new filtered object.
 * @private
 */
  var _pick = function(obj, keys) {
    var newObj = {};
    for (var i = 0, len = keys.length; i < len; i++) {
      if (keys[i] in obj) {
        newObj[keys[i]] = obj[keys[i]];
      }
    }
    return newObj;
  };
  /**
 * Makes a shallow copy of `obj` (like `_extend`) but filters its properties based on a list of `keys` to omit.
 * The inverse of `_pick`.
 *
 * @returns A new filtered object.
 * @private
 */
  var _omit = function(obj, keys) {
    var newObj = {};
    for (var prop in obj) {
      if (keys.indexOf(prop) === -1) {
        newObj[prop] = obj[prop];
      }
    }
    return newObj;
  };
  /**
 * Remove all owned, enumerable properties from an object.
 *
 * @returns The original object without its owned, enumerable properties.
 * @private
 */
  var _deleteOwnProperties = function(obj) {
    if (obj) {
      for (var prop in obj) {
        if (_hasOwn.call(obj, prop)) {
          delete obj[prop];
        }
      }
    }
    return obj;
  };
  /**
 * Determine if an element is contained within another element.
 *
 * @returns Boolean
 * @private
 */
  var _containedBy = function(el, ancestorEl) {
    if (el && el.nodeType === 1 && el.ownerDocument && ancestorEl && (ancestorEl.nodeType === 1 && ancestorEl.ownerDocument && ancestorEl.ownerDocument === el.ownerDocument || ancestorEl.nodeType === 9 && !ancestorEl.ownerDocument && ancestorEl === el.ownerDocument)) {
      do {
        if (el === ancestorEl) {
          return true;
        }
        el = el.parentNode;
      } while (el);
    }
    return false;
  };
  /**
 * Get the URL path's parent directory.
 *
 * @returns String or `undefined`
 * @private
 */
  var _getDirPathOfUrl = function(url) {
    var dir;
    if (typeof url === "string" && url) {
      dir = url.split("#")[0].split("?")[0];
      dir = url.slice(0, url.lastIndexOf("/") + 1);
    }
    return dir;
  };
  /**
 * Get the current script's URL by throwing an `Error` and analyzing it.
 *
 * @returns String or `undefined`
 * @private
 */
  var _getCurrentScriptUrlFromErrorStack = function(stack) {
    var url, matches;
    if (typeof stack === "string" && stack) {
      matches = stack.match(/^(?:|[^:@]*@|.+\)@(?=http[s]?|file)|.+?\s+(?: at |@)(?:[^:\(]+ )*[\(]?)((?:http[s]?|file):\/\/[\/]?.+?\/[^:\)]*?)(?::\d+)(?::\d+)?/);
      if (matches && matches[1]) {
        url = matches[1];
      } else {
        matches = stack.match(/\)@((?:http[s]?|file):\/\/[\/]?.+?\/[^:\)]*?)(?::\d+)(?::\d+)?/);
        if (matches && matches[1]) {
          url = matches[1];
        }
      }
    }
    return url;
  };
  /**
 * Get the current script's URL by throwing an `Error` and analyzing it.
 *
 * @returns String or `undefined`
 * @private
 */
  var _getCurrentScriptUrlFromError = function() {
    var url, err;
    try {
      throw new _Error();
    } catch (e) {
      err = e;
    }
    if (err) {
      url = err.sourceURL || err.fileName || _getCurrentScriptUrlFromErrorStack(err.stack);
    }
    return url;
  };
  /**
 * Get the current script's URL.
 *
 * @returns String or `undefined`
 * @private
 */
  var _getCurrentScriptUrl = function() {
    var jsPath, scripts, i;
    if (_document.currentScript && (jsPath = _document.currentScript.src)) {
      return jsPath;
    }
    scripts = _document.getElementsByTagName("script");
    if (scripts.length === 1) {
      return scripts[0].src || undefined;
    }
    if ("readyState" in scripts[0]) {
      for (i = scripts.length; i--; ) {
        if (scripts[i].readyState === "interactive" && (jsPath = scripts[i].src)) {
          return jsPath;
        }
      }
    }
    if (_document.readyState === "loading" && (jsPath = scripts[scripts.length - 1].src)) {
      return jsPath;
    }
    if (jsPath = _getCurrentScriptUrlFromError()) {
      return jsPath;
    }
    return undefined;
  };
  /**
 * Get the unanimous parent directory of ALL script tags.
 * If any script tags are either (a) inline or (b) from differing parent
 * directories, this method must return `undefined`.
 *
 * @returns String or `undefined`
 * @private
 */
  var _getUnanimousScriptParentDir = function() {
    var i, jsDir, jsPath, scripts = _document.getElementsByTagName("script");
    for (i = scripts.length; i--; ) {
      if (!(jsPath = scripts[i].src)) {
        jsDir = null;
        break;
      }
      jsPath = _getDirPathOfUrl(jsPath);
      if (jsDir == null) {
        jsDir = jsPath;
      } else if (jsDir !== jsPath) {
        jsDir = null;
        break;
      }
    }
    return jsDir || undefined;
  };
  /**
 * Get the presumed location of the "ZeroClipboard.swf" file, based on the location
 * of the executing JavaScript file (e.g. "ZeroClipboard.js", etc.).
 *
 * @returns String
 * @private
 */
  var _getDefaultSwfPath = function() {
    var jsDir = _getDirPathOfUrl(_getCurrentScriptUrl()) || _getUnanimousScriptParentDir() || "";
    return jsDir + "ZeroClipboard.swf";
  };
  /**
 * Keep track of if the page is framed (in an `iframe`). This can never change.
 * @private
 */
  var _pageIsFramed = function() {
    return window.opener == null && (!!window.top && window != window.top || !!window.parent && window != window.parent);
  }();
  /**
 * Keep track of the state of the Flash object.
 * @private
 */
  var _flashState = {
    bridge: null,
    version: "0.0.0",
    pluginType: "unknown",
    disabled: null,
    outdated: null,
    sandboxed: null,
    unavailable: null,
    degraded: null,
    deactivated: null,
    overdue: null,
    ready: null
  };
  /**
 * The minimum Flash Player version required to use ZeroClipboard completely.
 * @readonly
 * @private
 */
  var _minimumFlashVersion = "11.0.0";
  /**
 * The ZeroClipboard library version number, as reported by Flash, at the time the SWF was compiled.
 */
  var _zcSwfVersion;
  /**
 * Keep track of all event listener registrations.
 * @private
 */
  var _handlers = {};
  /**
 * Keep track of the currently activated element.
 * @private
 */
  var _currentElement;
  /**
 * Keep track of the element that was activated when a `copy` process started.
 * @private
 */
  var _copyTarget;
  /**
 * Keep track of data for the pending clipboard transaction.
 * @private
 */
  var _clipData = {};
  /**
 * Keep track of data formats for the pending clipboard transaction.
 * @private
 */
  var _clipDataFormatMap = null;
  /**
 * Keep track of the Flash availability check timeout.
 * @private
 */
  var _flashCheckTimeout = 0;
  /**
 * Keep track of SWF network errors interval polling.
 * @private
 */
  var _swfFallbackCheckInterval = 0;
  /**
 * The `message` store for events
 * @private
 */
  var _eventMessages = {
    ready: "Flash communication is established",
    error: {
      "flash-disabled": "Flash is disabled or not installed. May also be attempting to run Flash in a sandboxed iframe, which is impossible.",
      "flash-outdated": "Flash is too outdated to support ZeroClipboard",
      "flash-sandboxed": "Attempting to run Flash in a sandboxed iframe, which is impossible",
      "flash-unavailable": "Flash is unable to communicate bidirectionally with JavaScript",
      "flash-degraded": "Flash is unable to preserve data fidelity when communicating with JavaScript",
      "flash-deactivated": "Flash is too outdated for your browser and/or is configured as click-to-activate.\nThis may also mean that the ZeroClipboard SWF object could not be loaded, so please check your `swfPath` configuration and/or network connectivity.\nMay also be attempting to run Flash in a sandboxed iframe, which is impossible.",
      "flash-overdue": "Flash communication was established but NOT within the acceptable time limit",
      "version-mismatch": "ZeroClipboard JS version number does not match ZeroClipboard SWF version number",
      "clipboard-error": "At least one error was thrown while ZeroClipboard was attempting to inject your data into the clipboard",
      "config-mismatch": "ZeroClipboard configuration does not match Flash's reality",
      "swf-not-found": "The ZeroClipboard SWF object could not be loaded, so please check your `swfPath` configuration and/or network connectivity"
    }
  };
  /**
 * The `name`s of `error` events that can only occur is Flash has at least
 * been able to load the SWF successfully.
 * @private
 */
  var _errorsThatOnlyOccurAfterFlashLoads = [ "flash-unavailable", "flash-degraded", "flash-overdue", "version-mismatch", "config-mismatch", "clipboard-error" ];
  /**
 * The `name`s of `error` events that should likely result in the `_flashState`
 * variable's property values being updated.
 * @private
 */
  var _flashStateErrorNames = [ "flash-disabled", "flash-outdated", "flash-sandboxed", "flash-unavailable", "flash-degraded", "flash-deactivated", "flash-overdue" ];
  /**
 * A RegExp to match the `name` property of `error` events related to Flash.
 * @private
 */
  var _flashStateErrorNameMatchingRegex = new RegExp("^flash-(" + _flashStateErrorNames.map(function(errorName) {
    return errorName.replace(/^flash-/, "");
  }).join("|") + ")$");
  /**
 * A RegExp to match the `name` property of `error` events related to Flash,
 * which is enabled.
 * @private
 */
  var _flashStateEnabledErrorNameMatchingRegex = new RegExp("^flash-(" + _flashStateErrorNames.slice(1).map(function(errorName) {
    return errorName.replace(/^flash-/, "");
  }).join("|") + ")$");
  /**
 * ZeroClipboard configuration defaults for the Core module.
 * @private
 */
  var _globalConfig = {
    swfPath: _getDefaultSwfPath(),
    trustedDomains: window.location.host ? [ window.location.host ] : [],
    cacheBust: true,
    forceEnhancedClipboard: false,
    flashLoadTimeout: 3e4,
    autoActivate: true,
    bubbleEvents: true,
    containerId: "global-zeroclipboard-html-bridge",
    containerClass: "global-zeroclipboard-container",
    swfObjectId: "global-zeroclipboard-flash-bridge",
    hoverClass: "zeroclipboard-is-hover",
    activeClass: "zeroclipboard-is-active",
    forceHandCursor: false,
    title: null,
    zIndex: 999999999
  };
  /**
 * The underlying implementation of `ZeroClipboard.config`.
 * @private
 */
  var _config = function(options) {
    if (typeof options === "object" && options !== null) {
      for (var prop in options) {
        if (_hasOwn.call(options, prop)) {
          if (/^(?:forceHandCursor|title|zIndex|bubbleEvents)$/.test(prop)) {
            _globalConfig[prop] = options[prop];
          } else if (_flashState.bridge == null) {
            if (prop === "containerId" || prop === "swfObjectId") {
              if (_isValidHtml4Id(options[prop])) {
                _globalConfig[prop] = options[prop];
              } else {
                throw new Error("The specified `" + prop + "` value is not valid as an HTML4 Element ID");
              }
            } else {
              _globalConfig[prop] = options[prop];
            }
          }
        }
      }
    }
    if (typeof options === "string" && options) {
      if (_hasOwn.call(_globalConfig, options)) {
        return _globalConfig[options];
      }
      return;
    }
    return _deepCopy(_globalConfig);
  };
  /**
 * The underlying implementation of `ZeroClipboard.state`.
 * @private
 */
  var _state = function() {
    _detectSandbox();
    return {
      browser: _pick(_navigator, [ "userAgent", "platform", "appName" ]),
      flash: _omit(_flashState, [ "bridge" ]),
      zeroclipboard: {
        version: ZeroClipboard.version,
        config: ZeroClipboard.config()
      }
    };
  };
  /**
 * The underlying implementation of `ZeroClipboard.isFlashUnusable`.
 * @private
 */
  var _isFlashUnusable = function() {
    return !!(_flashState.disabled || _flashState.outdated || _flashState.sandboxed || _flashState.unavailable || _flashState.degraded || _flashState.deactivated);
  };
  /**
 * The underlying implementation of `ZeroClipboard.on`.
 * @private
 */
  var _on = function(eventType, listener) {
    var i, len, events, added = {};
    if (typeof eventType === "string" && eventType) {
      events = eventType.toLowerCase().split(/\s+/);
    } else if (typeof eventType === "object" && eventType && typeof listener === "undefined") {
      for (i in eventType) {
        if (_hasOwn.call(eventType, i) && typeof i === "string" && i && typeof eventType[i] === "function") {
          ZeroClipboard.on(i, eventType[i]);
        }
      }
    }
    if (events && events.length) {
      for (i = 0, len = events.length; i < len; i++) {
        eventType = events[i].replace(/^on/, "");
        added[eventType] = true;
        if (!_handlers[eventType]) {
          _handlers[eventType] = [];
        }
        _handlers[eventType].push(listener);
      }
      if (added.ready && _flashState.ready) {
        ZeroClipboard.emit({
          type: "ready"
        });
      }
      if (added.error) {
        for (i = 0, len = _flashStateErrorNames.length; i < len; i++) {
          if (_flashState[_flashStateErrorNames[i].replace(/^flash-/, "")] === true) {
            ZeroClipboard.emit({
              type: "error",
              name: _flashStateErrorNames[i]
            });
            break;
          }
        }
        if (_zcSwfVersion !== undefined && ZeroClipboard.version !== _zcSwfVersion) {
          ZeroClipboard.emit({
            type: "error",
            name: "version-mismatch",
            jsVersion: ZeroClipboard.version,
            swfVersion: _zcSwfVersion
          });
        }
      }
    }
    return ZeroClipboard;
  };
  /**
 * The underlying implementation of `ZeroClipboard.off`.
 * @private
 */
  var _off = function(eventType, listener) {
    var i, len, foundIndex, events, perEventHandlers;
    if (arguments.length === 0) {
      events = _keys(_handlers);
    } else if (typeof eventType === "string" && eventType) {
      events = eventType.split(/\s+/);
    } else if (typeof eventType === "object" && eventType && typeof listener === "undefined") {
      for (i in eventType) {
        if (_hasOwn.call(eventType, i) && typeof i === "string" && i && typeof eventType[i] === "function") {
          ZeroClipboard.off(i, eventType[i]);
        }
      }
    }
    if (events && events.length) {
      for (i = 0, len = events.length; i < len; i++) {
        eventType = events[i].toLowerCase().replace(/^on/, "");
        perEventHandlers = _handlers[eventType];
        if (perEventHandlers && perEventHandlers.length) {
          if (listener) {
            foundIndex = perEventHandlers.indexOf(listener);
            while (foundIndex !== -1) {
              perEventHandlers.splice(foundIndex, 1);
              foundIndex = perEventHandlers.indexOf(listener, foundIndex);
            }
          } else {
            perEventHandlers.length = 0;
          }
        }
      }
    }
    return ZeroClipboard;
  };
  /**
 * The underlying implementation of `ZeroClipboard.handlers`.
 * @private
 */
  var _listeners = function(eventType) {
    var copy;
    if (typeof eventType === "string" && eventType) {
      copy = _deepCopy(_handlers[eventType]) || null;
    } else {
      copy = _deepCopy(_handlers);
    }
    return copy;
  };
  /**
 * The underlying implementation of `ZeroClipboard.emit`.
 * @private
 */
  var _emit = function(event) {
    var eventCopy, returnVal, tmp;
    event = _createEvent(event);
    if (!event) {
      return;
    }
    if (_preprocessEvent(event)) {
      return;
    }
    if (event.type === "ready" && _flashState.overdue === true) {
      return ZeroClipboard.emit({
        type: "error",
        name: "flash-overdue"
      });
    }
    eventCopy = _extend({}, event);
    _dispatchCallbacks.call(this, eventCopy);
    if (event.type === "copy") {
      tmp = _mapClipDataToFlash(_clipData);
      returnVal = tmp.data;
      _clipDataFormatMap = tmp.formatMap;
    }
    return returnVal;
  };
  /**
 * The underlying implementation of `ZeroClipboard.create`.
 * @private
 */
  var _create = function() {
    var previousState = _flashState.sandboxed;
    _detectSandbox();
    if (typeof _flashState.ready !== "boolean") {
      _flashState.ready = false;
    }
    if (_flashState.sandboxed !== previousState && _flashState.sandboxed === true) {
      _flashState.ready = false;
      ZeroClipboard.emit({
        type: "error",
        name: "flash-sandboxed"
      });
    } else if (!ZeroClipboard.isFlashUnusable() && _flashState.bridge === null) {
      var maxWait = _globalConfig.flashLoadTimeout;
      if (typeof maxWait === "number" && maxWait >= 0) {
        _flashCheckTimeout = _setTimeout(function() {
          if (typeof _flashState.deactivated !== "boolean") {
            _flashState.deactivated = true;
          }
          if (_flashState.deactivated === true) {
            ZeroClipboard.emit({
              type: "error",
              name: "flash-deactivated"
            });
          }
        }, maxWait);
      }
      _flashState.overdue = false;
      _embedSwf();
    }
  };
  /**
 * The underlying implementation of `ZeroClipboard.destroy`.
 * @private
 */
  var _destroy = function() {
    ZeroClipboard.clearData();
    ZeroClipboard.blur();
    ZeroClipboard.emit("destroy");
    _unembedSwf();
    ZeroClipboard.off();
  };
  /**
 * The underlying implementation of `ZeroClipboard.setData`.
 * @private
 */
  var _setData = function(format, data) {
    var dataObj;
    if (typeof format === "object" && format && typeof data === "undefined") {
      dataObj = format;
      ZeroClipboard.clearData();
    } else if (typeof format === "string" && format) {
      dataObj = {};
      dataObj[format] = data;
    } else {
      return;
    }
    for (var dataFormat in dataObj) {
      if (typeof dataFormat === "string" && dataFormat && _hasOwn.call(dataObj, dataFormat) && typeof dataObj[dataFormat] === "string" && dataObj[dataFormat]) {
        _clipData[dataFormat] = dataObj[dataFormat];
      }
    }
  };
  /**
 * The underlying implementation of `ZeroClipboard.clearData`.
 * @private
 */
  var _clearData = function(format) {
    if (typeof format === "undefined") {
      _deleteOwnProperties(_clipData);
      _clipDataFormatMap = null;
    } else if (typeof format === "string" && _hasOwn.call(_clipData, format)) {
      delete _clipData[format];
    }
  };
  /**
 * The underlying implementation of `ZeroClipboard.getData`.
 * @private
 */
  var _getData = function(format) {
    if (typeof format === "undefined") {
      return _deepCopy(_clipData);
    } else if (typeof format === "string" && _hasOwn.call(_clipData, format)) {
      return _clipData[format];
    }
  };
  /**
 * The underlying implementation of `ZeroClipboard.focus`/`ZeroClipboard.activate`.
 * @private
 */
  var _focus = function(element) {
    if (!(element && element.nodeType === 1)) {
      return;
    }
    if (_currentElement) {
      _removeClass(_currentElement, _globalConfig.activeClass);
      if (_currentElement !== element) {
        _removeClass(_currentElement, _globalConfig.hoverClass);
      }
    }
    _currentElement = element;
    _addClass(element, _globalConfig.hoverClass);
    var newTitle = element.getAttribute("title") || _globalConfig.title;
    if (typeof newTitle === "string" && newTitle) {
      var htmlBridge = _getHtmlBridge(_flashState.bridge);
      if (htmlBridge) {
        htmlBridge.setAttribute("title", newTitle);
      }
    }
    var useHandCursor = _globalConfig.forceHandCursor === true || _getStyle(element, "cursor") === "pointer";
    _setHandCursor(useHandCursor);
    _reposition();
  };
  /**
 * The underlying implementation of `ZeroClipboard.blur`/`ZeroClipboard.deactivate`.
 * @private
 */
  var _blur = function() {
    var htmlBridge = _getHtmlBridge(_flashState.bridge);
    if (htmlBridge) {
      htmlBridge.removeAttribute("title");
      htmlBridge.style.left = "0px";
      htmlBridge.style.top = "-9999px";
      htmlBridge.style.width = "1px";
      htmlBridge.style.height = "1px";
    }
    if (_currentElement) {
      _removeClass(_currentElement, _globalConfig.hoverClass);
      _removeClass(_currentElement, _globalConfig.activeClass);
      _currentElement = null;
    }
  };
  /**
 * The underlying implementation of `ZeroClipboard.activeElement`.
 * @private
 */
  var _activeElement = function() {
    return _currentElement || null;
  };
  /**
 * Check if a value is a valid HTML4 `ID` or `Name` token.
 * @private
 */
  var _isValidHtml4Id = function(id) {
    return typeof id === "string" && id && /^[A-Za-z][A-Za-z0-9_:\-\.]*$/.test(id);
  };
  /**
 * Create or update an `event` object, based on the `eventType`.
 * @private
 */
  var _createEvent = function(event) {
    var eventType;
    if (typeof event === "string" && event) {
      eventType = event;
      event = {};
    } else if (typeof event === "object" && event && typeof event.type === "string" && event.type) {
      eventType = event.type;
    }
    if (!eventType) {
      return;
    }
    eventType = eventType.toLowerCase();
    if (!event.target && (/^(copy|aftercopy|_click)$/.test(eventType) || eventType === "error" && event.name === "clipboard-error")) {
      event.target = _copyTarget;
    }
    _extend(event, {
      type: eventType,
      target: event.target || _currentElement || null,
      relatedTarget: event.relatedTarget || null,
      currentTarget: _flashState && _flashState.bridge || null,
      timeStamp: event.timeStamp || _now() || null
    });
    var msg = _eventMessages[event.type];
    if (event.type === "error" && event.name && msg) {
      msg = msg[event.name];
    }
    if (msg) {
      event.message = msg;
    }
    if (event.type === "ready") {
      _extend(event, {
        target: null,
        version: _flashState.version
      });
    }
    if (event.type === "error") {
      if (_flashStateErrorNameMatchingRegex.test(event.name)) {
        _extend(event, {
          target: null,
          minimumVersion: _minimumFlashVersion
        });
      }
      if (_flashStateEnabledErrorNameMatchingRegex.test(event.name)) {
        _extend(event, {
          version: _flashState.version
        });
      }
    }
    if (event.type === "copy") {
      event.clipboardData = {
        setData: ZeroClipboard.setData,
        clearData: ZeroClipboard.clearData
      };
    }
    if (event.type === "aftercopy") {
      event = _mapClipResultsFromFlash(event, _clipDataFormatMap);
    }
    if (event.target && !event.relatedTarget) {
      event.relatedTarget = _getRelatedTarget(event.target);
    }
    return _addMouseData(event);
  };
  /**
 * Get a relatedTarget from the target's `data-clipboard-target` attribute
 * @private
 */
  var _getRelatedTarget = function(targetEl) {
    var relatedTargetId = targetEl && targetEl.getAttribute && targetEl.getAttribute("data-clipboard-target");
    return relatedTargetId ? _document.getElementById(relatedTargetId) : null;
  };
  /**
 * Add element and position data to `MouseEvent` instances
 * @private
 */
  var _addMouseData = function(event) {
    if (event && /^_(?:click|mouse(?:over|out|down|up|move))$/.test(event.type)) {
      var srcElement = event.target;
      var fromElement = event.type === "_mouseover" && event.relatedTarget ? event.relatedTarget : undefined;
      var toElement = event.type === "_mouseout" && event.relatedTarget ? event.relatedTarget : undefined;
      var pos = _getElementPosition(srcElement);
      var screenLeft = _window.screenLeft || _window.screenX || 0;
      var screenTop = _window.screenTop || _window.screenY || 0;
      var scrollLeft = _document.body.scrollLeft + _document.documentElement.scrollLeft;
      var scrollTop = _document.body.scrollTop + _document.documentElement.scrollTop;
      var pageX = pos.left + (typeof event._stageX === "number" ? event._stageX : 0);
      var pageY = pos.top + (typeof event._stageY === "number" ? event._stageY : 0);
      var clientX = pageX - scrollLeft;
      var clientY = pageY - scrollTop;
      var screenX = screenLeft + clientX;
      var screenY = screenTop + clientY;
      var moveX = typeof event.movementX === "number" ? event.movementX : 0;
      var moveY = typeof event.movementY === "number" ? event.movementY : 0;
      delete event._stageX;
      delete event._stageY;
      _extend(event, {
        srcElement: srcElement,
        fromElement: fromElement,
        toElement: toElement,
        screenX: screenX,
        screenY: screenY,
        pageX: pageX,
        pageY: pageY,
        clientX: clientX,
        clientY: clientY,
        x: clientX,
        y: clientY,
        movementX: moveX,
        movementY: moveY,
        offsetX: 0,
        offsetY: 0,
        layerX: 0,
        layerY: 0
      });
    }
    return event;
  };
  /**
 * Determine if an event's registered handlers should be execute synchronously or asynchronously.
 *
 * @returns {boolean}
 * @private
 */
  var _shouldPerformAsync = function(event) {
    var eventType = event && typeof event.type === "string" && event.type || "";
    return !/^(?:(?:before)?copy|destroy)$/.test(eventType);
  };
  /**
 * Control if a callback should be executed asynchronously or not.
 *
 * @returns `undefined`
 * @private
 */
  var _dispatchCallback = function(func, context, args, async) {
    if (async) {
      _setTimeout(function() {
        func.apply(context, args);
      }, 0);
    } else {
      func.apply(context, args);
    }
  };
  /**
 * Handle the actual dispatching of events to client instances.
 *
 * @returns `undefined`
 * @private
 */
  var _dispatchCallbacks = function(event) {
    if (!(typeof event === "object" && event && event.type)) {
      return;
    }
    var async = _shouldPerformAsync(event);
    var wildcardTypeHandlers = _handlers["*"] || [];
    var specificTypeHandlers = _handlers[event.type] || [];
    var handlers = wildcardTypeHandlers.concat(specificTypeHandlers);
    if (handlers && handlers.length) {
      var i, len, func, context, eventCopy, originalContext = this;
      for (i = 0, len = handlers.length; i < len; i++) {
        func = handlers[i];
        context = originalContext;
        if (typeof func === "string" && typeof _window[func] === "function") {
          func = _window[func];
        }
        if (typeof func === "object" && func && typeof func.handleEvent === "function") {
          context = func;
          func = func.handleEvent;
        }
        if (typeof func === "function") {
          eventCopy = _extend({}, event);
          _dispatchCallback(func, context, [ eventCopy ], async);
        }
      }
    }
    return this;
  };
  /**
 * Check an `error` event's `name` property to see if Flash has
 * already loaded, which rules out possible `iframe` sandboxing.
 * @private
 */
  var _getSandboxStatusFromErrorEvent = function(event) {
    var isSandboxed = null;
    if (_pageIsFramed === false || event && event.type === "error" && event.name && _errorsThatOnlyOccurAfterFlashLoads.indexOf(event.name) !== -1) {
      isSandboxed = false;
    }
    return isSandboxed;
  };
  /**
 * Preprocess any special behaviors, reactions, or state changes after receiving this event.
 * Executes only once per event emitted, NOT once per client.
 * @private
 */
  var _preprocessEvent = function(event) {
    var element = event.target || _currentElement || null;
    var sourceIsSwf = event._source === "swf";
    delete event._source;
    switch (event.type) {
     case "error":
      var isSandboxed = event.name === "flash-sandboxed" || _getSandboxStatusFromErrorEvent(event);
      if (typeof isSandboxed === "boolean") {
        _flashState.sandboxed = isSandboxed;
      }
      if (_flashStateErrorNames.indexOf(event.name) !== -1) {
        _extend(_flashState, {
          disabled: event.name === "flash-disabled",
          outdated: event.name === "flash-outdated",
          unavailable: event.name === "flash-unavailable",
          degraded: event.name === "flash-degraded",
          deactivated: event.name === "flash-deactivated",
          overdue: event.name === "flash-overdue",
          ready: false
        });
      } else if (event.name === "version-mismatch") {
        _zcSwfVersion = event.swfVersion;
        _extend(_flashState, {
          disabled: false,
          outdated: false,
          unavailable: false,
          degraded: false,
          deactivated: false,
          overdue: false,
          ready: false
        });
      }
      _clearTimeoutsAndPolling();
      break;

     case "ready":
      _zcSwfVersion = event.swfVersion;
      var wasDeactivated = _flashState.deactivated === true;
      _extend(_flashState, {
        disabled: false,
        outdated: false,
        sandboxed: false,
        unavailable: false,
        degraded: false,
        deactivated: false,
        overdue: wasDeactivated,
        ready: !wasDeactivated
      });
      _clearTimeoutsAndPolling();
      break;

     case "beforecopy":
      _copyTarget = element;
      break;

     case "copy":
      var textContent, htmlContent, targetEl = event.relatedTarget;
      if (!(_clipData["text/html"] || _clipData["text/plain"]) && targetEl && (htmlContent = targetEl.value || targetEl.outerHTML || targetEl.innerHTML) && (textContent = targetEl.value || targetEl.textContent || targetEl.innerText)) {
        event.clipboardData.clearData();
        event.clipboardData.setData("text/plain", textContent);
        if (htmlContent !== textContent) {
          event.clipboardData.setData("text/html", htmlContent);
        }
      } else if (!_clipData["text/plain"] && event.target && (textContent = event.target.getAttribute("data-clipboard-text"))) {
        event.clipboardData.clearData();
        event.clipboardData.setData("text/plain", textContent);
      }
      break;

     case "aftercopy":
      _queueEmitClipboardErrors(event);
      ZeroClipboard.clearData();
      if (element && element !== _safeActiveElement() && element.focus) {
        element.focus();
      }
      break;

     case "_mouseover":
      ZeroClipboard.focus(element);
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        if (element && element !== event.relatedTarget && !_containedBy(event.relatedTarget, element)) {
          _fireMouseEvent(_extend({}, event, {
            type: "mouseenter",
            bubbles: false,
            cancelable: false
          }));
        }
        _fireMouseEvent(_extend({}, event, {
          type: "mouseover"
        }));
      }
      break;

     case "_mouseout":
      ZeroClipboard.blur();
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        if (element && element !== event.relatedTarget && !_containedBy(event.relatedTarget, element)) {
          _fireMouseEvent(_extend({}, event, {
            type: "mouseleave",
            bubbles: false,
            cancelable: false
          }));
        }
        _fireMouseEvent(_extend({}, event, {
          type: "mouseout"
        }));
      }
      break;

     case "_mousedown":
      _addClass(element, _globalConfig.activeClass);
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        _fireMouseEvent(_extend({}, event, {
          type: event.type.slice(1)
        }));
      }
      break;

     case "_mouseup":
      _removeClass(element, _globalConfig.activeClass);
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        _fireMouseEvent(_extend({}, event, {
          type: event.type.slice(1)
        }));
      }
      break;

     case "_click":
      _copyTarget = null;
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        _fireMouseEvent(_extend({}, event, {
          type: event.type.slice(1)
        }));
      }
      break;

     case "_mousemove":
      if (_globalConfig.bubbleEvents === true && sourceIsSwf) {
        _fireMouseEvent(_extend({}, event, {
          type: event.type.slice(1)
        }));
      }
      break;
    }
    if (/^_(?:click|mouse(?:over|out|down|up|move))$/.test(event.type)) {
      return true;
    }
  };
  /**
 * Check an "aftercopy" event for clipboard errors and emit a corresponding "error" event.
 * @private
 */
  var _queueEmitClipboardErrors = function(aftercopyEvent) {
    if (aftercopyEvent.errors && aftercopyEvent.errors.length > 0) {
      var errorEvent = _deepCopy(aftercopyEvent);
      _extend(errorEvent, {
        type: "error",
        name: "clipboard-error"
      });
      delete errorEvent.success;
      _setTimeout(function() {
        ZeroClipboard.emit(errorEvent);
      }, 0);
    }
  };
  /**
 * Dispatch a synthetic MouseEvent.
 *
 * @returns `undefined`
 * @private
 */
  var _fireMouseEvent = function(event) {
    if (!(event && typeof event.type === "string" && event)) {
      return;
    }
    var e, target = event.target || null, doc = target && target.ownerDocument || _document, defaults = {
      view: doc.defaultView || _window,
      canBubble: true,
      cancelable: true,
      detail: event.type === "click" ? 1 : 0,
      button: typeof event.which === "number" ? event.which - 1 : typeof event.button === "number" ? event.button : doc.createEvent ? 0 : 1
    }, args = _extend(defaults, event);
    if (!target) {
      return;
    }
    if (doc.createEvent && target.dispatchEvent) {
      args = [ args.type, args.canBubble, args.cancelable, args.view, args.detail, args.screenX, args.screenY, args.clientX, args.clientY, args.ctrlKey, args.altKey, args.shiftKey, args.metaKey, args.button, args.relatedTarget ];
      e = doc.createEvent("MouseEvents");
      if (e.initMouseEvent) {
        e.initMouseEvent.apply(e, args);
        e._source = "js";
        target.dispatchEvent(e);
      }
    }
  };
  /**
 * Continuously poll the DOM until either:
 *  (a) the fallback content becomes visible, or
 *  (b) we receive an event from SWF (handled elsewhere)
 *
 * IMPORTANT:
 * This is NOT a necessary check but it can result in significantly faster
 * detection of bad `swfPath` configuration and/or network/server issues [in
 * supported browsers] than waiting for the entire `flashLoadTimeout` duration
 * to elapse before detecting that the SWF cannot be loaded. The detection
 * duration can be anywhere from 10-30 times faster [in supported browsers] by
 * using this approach.
 *
 * @returns `undefined`
 * @private
 */
  var _watchForSwfFallbackContent = function() {
    var maxWait = _globalConfig.flashLoadTimeout;
    if (typeof maxWait === "number" && maxWait >= 0) {
      var pollWait = Math.min(1e3, maxWait / 10);
      var fallbackContentId = _globalConfig.swfObjectId + "_fallbackContent";
      _swfFallbackCheckInterval = _setInterval(function() {
        var el = _document.getElementById(fallbackContentId);
        if (_isElementVisible(el)) {
          _clearTimeoutsAndPolling();
          _flashState.deactivated = null;
          ZeroClipboard.emit({
            type: "error",
            name: "swf-not-found"
          });
        }
      }, pollWait);
    }
  };
  /**
 * Create the HTML bridge element to embed the Flash object into.
 * @private
 */
  var _createHtmlBridge = function() {
    var container = _document.createElement("div");
    container.id = _globalConfig.containerId;
    container.className = _globalConfig.containerClass;
    container.style.position = "absolute";
    container.style.left = "0px";
    container.style.top = "-9999px";
    container.style.width = "1px";
    container.style.height = "1px";
    container.style.zIndex = "" + _getSafeZIndex(_globalConfig.zIndex);
    return container;
  };
  /**
 * Get the HTML element container that wraps the Flash bridge object/element.
 * @private
 */
  var _getHtmlBridge = function(flashBridge) {
    var htmlBridge = flashBridge && flashBridge.parentNode;
    while (htmlBridge && htmlBridge.nodeName === "OBJECT" && htmlBridge.parentNode) {
      htmlBridge = htmlBridge.parentNode;
    }
    return htmlBridge || null;
  };
  /**
 * Create the SWF object.
 *
 * @returns The SWF object reference.
 * @private
 */
  var _embedSwf = function() {
    var len, flashBridge = _flashState.bridge, container = _getHtmlBridge(flashBridge);
    if (!flashBridge) {
      var allowScriptAccess = _determineScriptAccess(_window.location.host, _globalConfig);
      var allowNetworking = allowScriptAccess === "never" ? "none" : "all";
      var flashvars = _vars(_extend({
        jsVersion: ZeroClipboard.version
      }, _globalConfig));
      var swfUrl = _globalConfig.swfPath + _cacheBust(_globalConfig.swfPath, _globalConfig);
      container = _createHtmlBridge();
      var divToBeReplaced = _document.createElement("div");
      container.appendChild(divToBeReplaced);
      _document.body.appendChild(container);
      var tmpDiv = _document.createElement("div");
      var usingActiveX = _flashState.pluginType === "activex";
      tmpDiv.innerHTML = '<object id="' + _globalConfig.swfObjectId + '" name="' + _globalConfig.swfObjectId + '" ' + 'width="100%" height="100%" ' + (usingActiveX ? 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"' : 'type="application/x-shockwave-flash" data="' + swfUrl + '"') + ">" + (usingActiveX ? '<param name="movie" value="' + swfUrl + '"/>' : "") + '<param name="allowScriptAccess" value="' + allowScriptAccess + '"/>' + '<param name="allowNetworking" value="' + allowNetworking + '"/>' + '<param name="menu" value="false"/>' + '<param name="wmode" value="transparent"/>' + '<param name="flashvars" value="' + flashvars + '"/>' + '<div id="' + _globalConfig.swfObjectId + '_fallbackContent">&nbsp;</div>' + "</object>";
      flashBridge = tmpDiv.firstChild;
      tmpDiv = null;
      _unwrap(flashBridge).ZeroClipboard = ZeroClipboard;
      container.replaceChild(flashBridge, divToBeReplaced);
      _watchForSwfFallbackContent();
    }
    if (!flashBridge) {
      flashBridge = _document[_globalConfig.swfObjectId];
      if (flashBridge && (len = flashBridge.length)) {
        flashBridge = flashBridge[len - 1];
      }
      if (!flashBridge && container) {
        flashBridge = container.firstChild;
      }
    }
    _flashState.bridge = flashBridge || null;
    return flashBridge;
  };
  /**
 * Destroy the SWF object.
 * @private
 */
  var _unembedSwf = function() {
    var flashBridge = _flashState.bridge;
    if (flashBridge) {
      var htmlBridge = _getHtmlBridge(flashBridge);
      if (htmlBridge) {
        if (_flashState.pluginType === "activex" && "readyState" in flashBridge) {
          flashBridge.style.display = "none";
          (function removeSwfFromIE() {
            if (flashBridge.readyState === 4) {
              for (var prop in flashBridge) {
                if (typeof flashBridge[prop] === "function") {
                  flashBridge[prop] = null;
                }
              }
              if (flashBridge.parentNode) {
                flashBridge.parentNode.removeChild(flashBridge);
              }
              if (htmlBridge.parentNode) {
                htmlBridge.parentNode.removeChild(htmlBridge);
              }
            } else {
              _setTimeout(removeSwfFromIE, 10);
            }
          })();
        } else {
          if (flashBridge.parentNode) {
            flashBridge.parentNode.removeChild(flashBridge);
          }
          if (htmlBridge.parentNode) {
            htmlBridge.parentNode.removeChild(htmlBridge);
          }
        }
      }
      _clearTimeoutsAndPolling();
      _flashState.ready = null;
      _flashState.bridge = null;
      _flashState.deactivated = null;
      _zcSwfVersion = undefined;
    }
  };
  /**
 * Map the data format names of the "clipData" to Flash-friendly names.
 *
 * @returns A new transformed object.
 * @private
 */
  var _mapClipDataToFlash = function(clipData) {
    var newClipData = {}, formatMap = {};
    if (!(typeof clipData === "object" && clipData)) {
      return;
    }
    for (var dataFormat in clipData) {
      if (dataFormat && _hasOwn.call(clipData, dataFormat) && typeof clipData[dataFormat] === "string" && clipData[dataFormat]) {
        switch (dataFormat.toLowerCase()) {
         case "text/plain":
         case "text":
         case "air:text":
         case "flash:text":
          newClipData.text = clipData[dataFormat];
          formatMap.text = dataFormat;
          break;

         case "text/html":
         case "html":
         case "air:html":
         case "flash:html":
          newClipData.html = clipData[dataFormat];
          formatMap.html = dataFormat;
          break;

         case "application/rtf":
         case "text/rtf":
         case "rtf":
         case "richtext":
         case "air:rtf":
         case "flash:rtf":
          newClipData.rtf = clipData[dataFormat];
          formatMap.rtf = dataFormat;
          break;

         default:
          break;
        }
      }
    }
    return {
      data: newClipData,
      formatMap: formatMap
    };
  };
  /**
 * Map the data format names from Flash-friendly names back to their original "clipData" names (via a format mapping).
 *
 * @returns A new transformed object.
 * @private
 */
  var _mapClipResultsFromFlash = function(clipResults, formatMap) {
    if (!(typeof clipResults === "object" && clipResults && typeof formatMap === "object" && formatMap)) {
      return clipResults;
    }
    var newResults = {};
    for (var prop in clipResults) {
      if (_hasOwn.call(clipResults, prop)) {
        if (prop === "errors") {
          newResults[prop] = clipResults[prop] ? clipResults[prop].slice() : [];
          for (var i = 0, len = newResults[prop].length; i < len; i++) {
            newResults[prop][i].format = formatMap[newResults[prop][i].format];
          }
        } else if (prop !== "success" && prop !== "data") {
          newResults[prop] = clipResults[prop];
        } else {
          newResults[prop] = {};
          var tmpHash = clipResults[prop];
          for (var dataFormat in tmpHash) {
            if (dataFormat && _hasOwn.call(tmpHash, dataFormat) && _hasOwn.call(formatMap, dataFormat)) {
              newResults[prop][formatMap[dataFormat]] = tmpHash[dataFormat];
            }
          }
        }
      }
    }
    return newResults;
  };
  /**
 * Will look at a path, and will create a "?noCache={time}" or "&noCache={time}"
 * query param string to return. Does NOT append that string to the original path.
 * This is useful because ExternalInterface often breaks when a Flash SWF is cached.
 *
 * @returns The `noCache` query param with necessary "?"/"&" prefix.
 * @private
 */
  var _cacheBust = function(path, options) {
    var cacheBust = options == null || options && options.cacheBust === true;
    if (cacheBust) {
      return (path.indexOf("?") === -1 ? "?" : "&") + "noCache=" + _now();
    } else {
      return "";
    }
  };
  /**
 * Creates a query string for the FlashVars param.
 * Does NOT include the cache-busting query param.
 *
 * @returns FlashVars query string
 * @private
 */
  var _vars = function(options) {
    var i, len, domain, domains, str = "", trustedOriginsExpanded = [];
    if (options.trustedDomains) {
      if (typeof options.trustedDomains === "string") {
        domains = [ options.trustedDomains ];
      } else if (typeof options.trustedDomains === "object" && "length" in options.trustedDomains) {
        domains = options.trustedDomains;
      }
    }
    if (domains && domains.length) {
      for (i = 0, len = domains.length; i < len; i++) {
        if (_hasOwn.call(domains, i) && domains[i] && typeof domains[i] === "string") {
          domain = _extractDomain(domains[i]);
          if (!domain) {
            continue;
          }
          if (domain === "*") {
            trustedOriginsExpanded.length = 0;
            trustedOriginsExpanded.push(domain);
            break;
          }
          trustedOriginsExpanded.push.apply(trustedOriginsExpanded, [ domain, "//" + domain, _window.location.protocol + "//" + domain ]);
        }
      }
    }
    if (trustedOriginsExpanded.length) {
      str += "trustedOrigins=" + _encodeURIComponent(trustedOriginsExpanded.join(","));
    }
    if (options.forceEnhancedClipboard === true) {
      str += (str ? "&" : "") + "forceEnhancedClipboard=true";
    }
    if (typeof options.swfObjectId === "string" && options.swfObjectId) {
      str += (str ? "&" : "") + "swfObjectId=" + _encodeURIComponent(options.swfObjectId);
    }
    if (typeof options.jsVersion === "string" && options.jsVersion) {
      str += (str ? "&" : "") + "jsVersion=" + _encodeURIComponent(options.jsVersion);
    }
    return str;
  };
  /**
 * Extract the domain (e.g. "github.com") from an origin (e.g. "https://github.com") or
 * URL (e.g. "https://github.com/zeroclipboard/zeroclipboard/").
 *
 * @returns the domain
 * @private
 */
  var _extractDomain = function(originOrUrl) {
    if (originOrUrl == null || originOrUrl === "") {
      return null;
    }
    originOrUrl = originOrUrl.replace(/^\s+|\s+$/g, "");
    if (originOrUrl === "") {
      return null;
    }
    var protocolIndex = originOrUrl.indexOf("//");
    originOrUrl = protocolIndex === -1 ? originOrUrl : originOrUrl.slice(protocolIndex + 2);
    var pathIndex = originOrUrl.indexOf("/");
    originOrUrl = pathIndex === -1 ? originOrUrl : protocolIndex === -1 || pathIndex === 0 ? null : originOrUrl.slice(0, pathIndex);
    if (originOrUrl && originOrUrl.slice(-4).toLowerCase() === ".swf") {
      return null;
    }
    return originOrUrl || null;
  };
  /**
 * Set `allowScriptAccess` based on `trustedDomains` and `window.location.host` vs. `swfPath`.
 *
 * @returns The appropriate script access level.
 * @private
 */
  var _determineScriptAccess = function() {
    var _extractAllDomains = function(origins) {
      var i, len, tmp, resultsArray = [];
      if (typeof origins === "string") {
        origins = [ origins ];
      }
      if (!(typeof origins === "object" && origins && typeof origins.length === "number")) {
        return resultsArray;
      }
      for (i = 0, len = origins.length; i < len; i++) {
        if (_hasOwn.call(origins, i) && (tmp = _extractDomain(origins[i]))) {
          if (tmp === "*") {
            resultsArray.length = 0;
            resultsArray.push("*");
            break;
          }
          if (resultsArray.indexOf(tmp) === -1) {
            resultsArray.push(tmp);
          }
        }
      }
      return resultsArray;
    };
    return function(currentDomain, configOptions) {
      var swfDomain = _extractDomain(configOptions.swfPath);
      if (swfDomain === null) {
        swfDomain = currentDomain;
      }
      var trustedDomains = _extractAllDomains(configOptions.trustedDomains);
      var len = trustedDomains.length;
      if (len > 0) {
        if (len === 1 && trustedDomains[0] === "*") {
          return "always";
        }
        if (trustedDomains.indexOf(currentDomain) !== -1) {
          if (len === 1 && currentDomain === swfDomain) {
            return "sameDomain";
          }
          return "always";
        }
      }
      return "never";
    };
  }();
  /**
 * Get the currently active/focused DOM element.
 *
 * @returns the currently active/focused element, or `null`
 * @private
 */
  var _safeActiveElement = function() {
    try {
      return _document.activeElement;
    } catch (err) {
      return null;
    }
  };
  /**
 * Add a class to an element, if it doesn't already have it.
 *
 * @returns The element, with its new class added.
 * @private
 */
  var _addClass = function(element, value) {
    var c, cl, className, classNames = [];
    if (typeof value === "string" && value) {
      classNames = value.split(/\s+/);
    }
    if (element && element.nodeType === 1 && classNames.length > 0) {
      if (element.classList) {
        for (c = 0, cl = classNames.length; c < cl; c++) {
          element.classList.add(classNames[c]);
        }
      } else if (element.hasOwnProperty("className")) {
        className = " " + element.className + " ";
        for (c = 0, cl = classNames.length; c < cl; c++) {
          if (className.indexOf(" " + classNames[c] + " ") === -1) {
            className += classNames[c] + " ";
          }
        }
        element.className = className.replace(/^\s+|\s+$/g, "");
      }
    }
    return element;
  };
  /**
 * Remove a class from an element, if it has it.
 *
 * @returns The element, with its class removed.
 * @private
 */
  var _removeClass = function(element, value) {
    var c, cl, className, classNames = [];
    if (typeof value === "string" && value) {
      classNames = value.split(/\s+/);
    }
    if (element && element.nodeType === 1 && classNames.length > 0) {
      if (element.classList && element.classList.length > 0) {
        for (c = 0, cl = classNames.length; c < cl; c++) {
          element.classList.remove(classNames[c]);
        }
      } else if (element.className) {
        className = (" " + element.className + " ").replace(/[\r\n\t]/g, " ");
        for (c = 0, cl = classNames.length; c < cl; c++) {
          className = className.replace(" " + classNames[c] + " ", " ");
        }
        element.className = className.replace(/^\s+|\s+$/g, "");
      }
    }
    return element;
  };
  /**
 * Attempt to interpret the element's CSS styling. If `prop` is `"cursor"`,
 * then we assume that it should be a hand ("pointer") cursor if the element
 * is an anchor element ("a" tag).
 *
 * @returns The computed style property.
 * @private
 */
  var _getStyle = function(el, prop) {
    var value = _getComputedStyle(el, null).getPropertyValue(prop);
    if (prop === "cursor") {
      if (!value || value === "auto") {
        if (el.nodeName === "A") {
          return "pointer";
        }
      }
    }
    return value;
  };
  /**
 * Get the absolutely positioned coordinates of a DOM element.
 *
 * @returns Object containing the element's position, width, and height.
 * @private
 */
  var _getElementPosition = function(el) {
    var pos = {
      left: 0,
      top: 0,
      width: 0,
      height: 0
    };
    if (el.getBoundingClientRect) {
      var elRect = el.getBoundingClientRect();
      var pageXOffset = _window.pageXOffset;
      var pageYOffset = _window.pageYOffset;
      var leftBorderWidth = _document.documentElement.clientLeft || 0;
      var topBorderWidth = _document.documentElement.clientTop || 0;
      var leftBodyOffset = 0;
      var topBodyOffset = 0;
      if (_getStyle(_document.body, "position") === "relative") {
        var bodyRect = _document.body.getBoundingClientRect();
        var htmlRect = _document.documentElement.getBoundingClientRect();
        leftBodyOffset = bodyRect.left - htmlRect.left || 0;
        topBodyOffset = bodyRect.top - htmlRect.top || 0;
      }
      pos.left = elRect.left + pageXOffset - leftBorderWidth - leftBodyOffset;
      pos.top = elRect.top + pageYOffset - topBorderWidth - topBodyOffset;
      pos.width = "width" in elRect ? elRect.width : elRect.right - elRect.left;
      pos.height = "height" in elRect ? elRect.height : elRect.bottom - elRect.top;
    }
    return pos;
  };
  /**
 * Determine is an element is visible somewhere within the document (page).
 *
 * @returns Boolean
 * @private
 */
  var _isElementVisible = function(el) {
    if (!el) {
      return false;
    }
    var styles = _getComputedStyle(el, null);
    var hasCssHeight = _parseFloat(styles.height) > 0;
    var hasCssWidth = _parseFloat(styles.width) > 0;
    var hasCssTop = _parseFloat(styles.top) >= 0;
    var hasCssLeft = _parseFloat(styles.left) >= 0;
    var cssKnows = hasCssHeight && hasCssWidth && hasCssTop && hasCssLeft;
    var rect = cssKnows ? null : _getElementPosition(el);
    var isVisible = styles.display !== "none" && styles.visibility !== "collapse" && (cssKnows || !!rect && (hasCssHeight || rect.height > 0) && (hasCssWidth || rect.width > 0) && (hasCssTop || rect.top >= 0) && (hasCssLeft || rect.left >= 0));
    return isVisible;
  };
  /**
 * Clear all existing timeouts and interval polling delegates.
 *
 * @returns `undefined`
 * @private
 */
  var _clearTimeoutsAndPolling = function() {
    _clearTimeout(_flashCheckTimeout);
    _flashCheckTimeout = 0;
    _clearInterval(_swfFallbackCheckInterval);
    _swfFallbackCheckInterval = 0;
  };
  /**
 * Reposition the Flash object to cover the currently activated element.
 *
 * @returns `undefined`
 * @private
 */
  var _reposition = function() {
    var htmlBridge;
    if (_currentElement && (htmlBridge = _getHtmlBridge(_flashState.bridge))) {
      var pos = _getElementPosition(_currentElement);
      _extend(htmlBridge.style, {
        width: pos.width + "px",
        height: pos.height + "px",
        top: pos.top + "px",
        left: pos.left + "px",
        zIndex: "" + _getSafeZIndex(_globalConfig.zIndex)
      });
    }
  };
  /**
 * Sends a signal to the Flash object to display the hand cursor if `true`.
 *
 * @returns `undefined`
 * @private
 */
  var _setHandCursor = function(enabled) {
    if (_flashState.ready === true) {
      if (_flashState.bridge && typeof _flashState.bridge.setHandCursor === "function") {
        _flashState.bridge.setHandCursor(enabled);
      } else {
        _flashState.ready = false;
      }
    }
  };
  /**
 * Get a safe value for `zIndex`
 *
 * @returns an integer, or "auto"
 * @private
 */
  var _getSafeZIndex = function(val) {
    if (/^(?:auto|inherit)$/.test(val)) {
      return val;
    }
    var zIndex;
    if (typeof val === "number" && !_isNaN(val)) {
      zIndex = val;
    } else if (typeof val === "string") {
      zIndex = _getSafeZIndex(_parseInt(val, 10));
    }
    return typeof zIndex === "number" ? zIndex : "auto";
  };
  /**
 * Attempt to detect if ZeroClipboard is executing inside of a sandboxed iframe.
 * If it is, Flash Player cannot be used, so ZeroClipboard is dead in the water.
 *
 * @see {@link http://lists.w3.org/Archives/Public/public-whatwg-archive/2014Dec/0002.html}
 * @see {@link https://github.com/zeroclipboard/zeroclipboard/issues/511}
 * @see {@link http://zeroclipboard.org/test-iframes.html}
 *
 * @returns `true` (is sandboxed), `false` (is not sandboxed), or `null` (uncertain) 
 * @private
 */
  var _detectSandbox = function(doNotReassessFlashSupport) {
    var effectiveScriptOrigin, frame, frameError, previousState = _flashState.sandboxed, isSandboxed = null;
    doNotReassessFlashSupport = doNotReassessFlashSupport === true;
    if (_pageIsFramed === false) {
      isSandboxed = false;
    } else {
      try {
        frame = window.frameElement || null;
      } catch (e) {
        frameError = {
          name: e.name,
          message: e.message
        };
      }
      if (frame && frame.nodeType === 1 && frame.nodeName === "IFRAME") {
        try {
          isSandboxed = frame.hasAttribute("sandbox");
        } catch (e) {
          isSandboxed = null;
        }
      } else {
        try {
          effectiveScriptOrigin = document.domain || null;
        } catch (e) {
          effectiveScriptOrigin = null;
        }
        if (effectiveScriptOrigin === null || frameError && frameError.name === "SecurityError" && /(^|[\s\(\[@])sandbox(es|ed|ing|[\s\.,!\)\]@]|$)/.test(frameError.message.toLowerCase())) {
          isSandboxed = true;
        }
      }
    }
    _flashState.sandboxed = isSandboxed;
    if (previousState !== isSandboxed && !doNotReassessFlashSupport) {
      _detectFlashSupport(_ActiveXObject);
    }
    return isSandboxed;
  };
  /**
 * Detect the Flash Player status, version, and plugin type.
 *
 * @see {@link https://code.google.com/p/doctype-mirror/wiki/ArticleDetectFlash#The_code}
 * @see {@link http://stackoverflow.com/questions/12866060/detecting-pepper-ppapi-flash-with-javascript}
 *
 * @returns `undefined`
 * @private
 */
  var _detectFlashSupport = function(ActiveXObject) {
    var plugin, ax, mimeType, hasFlash = false, isActiveX = false, isPPAPI = false, flashVersion = "";
    /**
   * Derived from Apple's suggested sniffer.
   * @param {String} desc e.g. "Shockwave Flash 7.0 r61"
   * @returns {String} "7.0.61"
   * @private
   */
    function parseFlashVersion(desc) {
      var matches = desc.match(/[\d]+/g);
      matches.length = 3;
      return matches.join(".");
    }
    function isPepperFlash(flashPlayerFileName) {
      return !!flashPlayerFileName && (flashPlayerFileName = flashPlayerFileName.toLowerCase()) && (/^(pepflashplayer\.dll|libpepflashplayer\.so|pepperflashplayer\.plugin)$/.test(flashPlayerFileName) || flashPlayerFileName.slice(-13) === "chrome.plugin");
    }
    function inspectPlugin(plugin) {
      if (plugin) {
        hasFlash = true;
        if (plugin.version) {
          flashVersion = parseFlashVersion(plugin.version);
        }
        if (!flashVersion && plugin.description) {
          flashVersion = parseFlashVersion(plugin.description);
        }
        if (plugin.filename) {
          isPPAPI = isPepperFlash(plugin.filename);
        }
      }
    }
    if (_navigator.plugins && _navigator.plugins.length) {
      plugin = _navigator.plugins["Shockwave Flash"];
      inspectPlugin(plugin);
      if (_navigator.plugins["Shockwave Flash 2.0"]) {
        hasFlash = true;
        flashVersion = "2.0.0.11";
      }
    } else if (_navigator.mimeTypes && _navigator.mimeTypes.length) {
      mimeType = _navigator.mimeTypes["application/x-shockwave-flash"];
      plugin = mimeType && mimeType.enabledPlugin;
      inspectPlugin(plugin);
    } else if (typeof ActiveXObject !== "undefined") {
      isActiveX = true;
      try {
        ax = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
        hasFlash = true;
        flashVersion = parseFlashVersion(ax.GetVariable("$version"));
      } catch (e1) {
        try {
          ax = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
          hasFlash = true;
          flashVersion = "6.0.21";
        } catch (e2) {
          try {
            ax = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
            hasFlash = true;
            flashVersion = parseFlashVersion(ax.GetVariable("$version"));
          } catch (e3) {
            isActiveX = false;
          }
        }
      }
    }
    _flashState.disabled = hasFlash !== true;
    _flashState.outdated = flashVersion && _parseFloat(flashVersion) < _parseFloat(_minimumFlashVersion);
    _flashState.version = flashVersion || "0.0.0";
    _flashState.pluginType = isPPAPI ? "pepper" : isActiveX ? "activex" : hasFlash ? "netscape" : "unknown";
  };
  /**
 * Invoke the Flash detection algorithms immediately upon inclusion so we're not waiting later.
 */
  _detectFlashSupport(_ActiveXObject);
  /**
 * Always assess the `sandboxed` state of the page at important Flash-related moments.
 */
  _detectSandbox(true);
  /**
 * A shell constructor for `ZeroClipboard` client instances.
 *
 * @constructor
 */
  var ZeroClipboard = function() {
    if (!(this instanceof ZeroClipboard)) {
      return new ZeroClipboard();
    }
    if (typeof ZeroClipboard._createClient === "function") {
      ZeroClipboard._createClient.apply(this, _args(arguments));
    }
  };
  /**
 * The ZeroClipboard library's version number.
 *
 * @static
 * @readonly
 * @property {string}
 */
  _defineProperty(ZeroClipboard, "version", {
    value: "2.2.0-beta.3",
    writable: false,
    configurable: true,
    enumerable: true
  });
  /**
 * Update or get a copy of the ZeroClipboard global configuration.
 * Returns a copy of the current/updated configuration.
 *
 * @returns Object
 * @static
 */
  ZeroClipboard.config = function() {
    return _config.apply(this, _args(arguments));
  };
  /**
 * Diagnostic method that describes the state of the browser, Flash Player, and ZeroClipboard.
 *
 * @returns Object
 * @static
 */
  ZeroClipboard.state = function() {
    return _state.apply(this, _args(arguments));
  };
  /**
 * Check if Flash is unusable for any reason: disabled, outdated, deactivated, etc.
 *
 * @returns Boolean
 * @static
 */
  ZeroClipboard.isFlashUnusable = function() {
    return _isFlashUnusable.apply(this, _args(arguments));
  };
  /**
 * Register an event listener.
 *
 * @returns `ZeroClipboard`
 * @static
 */
  ZeroClipboard.on = function() {
    return _on.apply(this, _args(arguments));
  };
  /**
 * Unregister an event listener.
 * If no `listener` function/object is provided, it will unregister all listeners for the provided `eventType`.
 * If no `eventType` is provided, it will unregister all listeners for every event type.
 *
 * @returns `ZeroClipboard`
 * @static
 */
  ZeroClipboard.off = function() {
    return _off.apply(this, _args(arguments));
  };
  /**
 * Retrieve event listeners for an `eventType`.
 * If no `eventType` is provided, it will retrieve all listeners for every event type.
 *
 * @returns array of listeners for the `eventType`; if no `eventType`, then a map/hash object of listeners for all event types; or `null`
 */
  ZeroClipboard.handlers = function() {
    return _listeners.apply(this, _args(arguments));
  };
  /**
 * Event emission receiver from the Flash object, forwarding to any registered JavaScript event listeners.
 *
 * @returns For the "copy" event, returns the Flash-friendly "clipData" object; otherwise `undefined`.
 * @static
 */
  ZeroClipboard.emit = function() {
    return _emit.apply(this, _args(arguments));
  };
  /**
 * Create and embed the Flash object.
 *
 * @returns The Flash object
 * @static
 */
  ZeroClipboard.create = function() {
    return _create.apply(this, _args(arguments));
  };
  /**
 * Self-destruct and clean up everything, including the embedded Flash object.
 *
 * @returns `undefined`
 * @static
 */
  ZeroClipboard.destroy = function() {
    return _destroy.apply(this, _args(arguments));
  };
  /**
 * Set the pending data for clipboard injection.
 *
 * @returns `undefined`
 * @static
 */
  ZeroClipboard.setData = function() {
    return _setData.apply(this, _args(arguments));
  };
  /**
 * Clear the pending data for clipboard injection.
 * If no `format` is provided, all pending data formats will be cleared.
 *
 * @returns `undefined`
 * @static
 */
  ZeroClipboard.clearData = function() {
    return _clearData.apply(this, _args(arguments));
  };
  /**
 * Get a copy of the pending data for clipboard injection.
 * If no `format` is provided, a copy of ALL pending data formats will be returned.
 *
 * @returns `String` or `Object`
 * @static
 */
  ZeroClipboard.getData = function() {
    return _getData.apply(this, _args(arguments));
  };
  /**
 * Sets the current HTML object that the Flash object should overlay. This will put the global
 * Flash object on top of the current element; depending on the setup, this may also set the
 * pending clipboard text data as well as the Flash object's wrapping element's title attribute
 * based on the underlying HTML element and ZeroClipboard configuration.
 *
 * @returns `undefined`
 * @static
 */
  ZeroClipboard.focus = ZeroClipboard.activate = function() {
    return _focus.apply(this, _args(arguments));
  };
  /**
 * Un-overlays the Flash object. This will put the global Flash object off-screen; depending on
 * the setup, this may also unset the Flash object's wrapping element's title attribute based on
 * the underlying HTML element and ZeroClipboard configuration.
 *
 * @returns `undefined`
 * @static
 */
  ZeroClipboard.blur = ZeroClipboard.deactivate = function() {
    return _blur.apply(this, _args(arguments));
  };
  /**
 * Returns the currently focused/"activated" HTML element that the Flash object is wrapping.
 *
 * @returns `HTMLElement` or `null`
 * @static
 */
  ZeroClipboard.activeElement = function() {
    return _activeElement.apply(this, _args(arguments));
  };
  /**
 * Keep track of the ZeroClipboard client instance counter.
 */
  var _clientIdCounter = 0;
  /**
 * Keep track of the state of the client instances.
 *
 * Entry structure:
 *   _clientMeta[client.id] = {
 *     instance: client,
 *     elements: [],
 *     handlers: {}
 *   };
 */
  var _clientMeta = {};
  /**
 * Keep track of the ZeroClipboard clipped elements counter.
 */
  var _elementIdCounter = 0;
  /**
 * Keep track of the state of the clipped element relationships to clients.
 *
 * Entry structure:
 *   _elementMeta[element.zcClippingId] = [client1.id, client2.id];
 */
  var _elementMeta = {};
  /**
 * Keep track of the state of the mouse event handlers for clipped elements.
 *
 * Entry structure:
 *   _mouseHandlers[element.zcClippingId] = {
 *     mouseover:  function(event) {},
 *     mouseout:   function(event) {},
 *     mouseenter: function(event) {},
 *     mouseleave: function(event) {},
 *     mousemove:  function(event) {}
 *   };
 */
  var _mouseHandlers = {};
  /**
 * Extending the ZeroClipboard configuration defaults for the Client module.
 */
  _extend(_globalConfig, {
    autoActivate: true
  });
  /**
 * The real constructor for `ZeroClipboard` client instances.
 * @private
 */
  var _clientConstructor = function(elements) {
    var client = this;
    client.id = "" + _clientIdCounter++;
    _clientMeta[client.id] = {
      instance: client,
      elements: [],
      handlers: {}
    };
    if (elements) {
      client.clip(elements);
    }
    ZeroClipboard.on("*", function(event) {
      return client.emit(event);
    });
    ZeroClipboard.on("destroy", function() {
      client.destroy();
    });
    ZeroClipboard.create();
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.on`.
 * @private
 */
  var _clientOn = function(eventType, listener) {
    var i, len, events, added = {}, meta = _clientMeta[this.id], handlers = meta && meta.handlers;
    if (!meta) {
      throw new Error("Attempted to add new listener(s) to a destroyed ZeroClipboard client instance");
    }
    if (typeof eventType === "string" && eventType) {
      events = eventType.toLowerCase().split(/\s+/);
    } else if (typeof eventType === "object" && eventType && typeof listener === "undefined") {
      for (i in eventType) {
        if (_hasOwn.call(eventType, i) && typeof i === "string" && i && typeof eventType[i] === "function") {
          this.on(i, eventType[i]);
        }
      }
    }
    if (events && events.length) {
      for (i = 0, len = events.length; i < len; i++) {
        eventType = events[i].replace(/^on/, "");
        added[eventType] = true;
        if (!handlers[eventType]) {
          handlers[eventType] = [];
        }
        handlers[eventType].push(listener);
      }
      if (added.ready && _flashState.ready) {
        this.emit({
          type: "ready",
          client: this
        });
      }
      if (added.error) {
        for (i = 0, len = _flashStateErrorNames.length; i < len; i++) {
          if (_flashState[_flashStateErrorNames[i].replace(/^flash-/, "")]) {
            this.emit({
              type: "error",
              name: _flashStateErrorNames[i],
              client: this
            });
            break;
          }
        }
        if (_zcSwfVersion !== undefined && ZeroClipboard.version !== _zcSwfVersion) {
          this.emit({
            type: "error",
            name: "version-mismatch",
            jsVersion: ZeroClipboard.version,
            swfVersion: _zcSwfVersion
          });
        }
      }
    }
    return this;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.off`.
 * @private
 */
  var _clientOff = function(eventType, listener) {
    var i, len, foundIndex, events, perEventHandlers, meta = _clientMeta[this.id], handlers = meta && meta.handlers;
    if (!handlers) {
      return this;
    }
    if (arguments.length === 0) {
      events = _keys(handlers);
    } else if (typeof eventType === "string" && eventType) {
      events = eventType.split(/\s+/);
    } else if (typeof eventType === "object" && eventType && typeof listener === "undefined") {
      for (i in eventType) {
        if (_hasOwn.call(eventType, i) && typeof i === "string" && i && typeof eventType[i] === "function") {
          this.off(i, eventType[i]);
        }
      }
    }
    if (events && events.length) {
      for (i = 0, len = events.length; i < len; i++) {
        eventType = events[i].toLowerCase().replace(/^on/, "");
        perEventHandlers = handlers[eventType];
        if (perEventHandlers && perEventHandlers.length) {
          if (listener) {
            foundIndex = perEventHandlers.indexOf(listener);
            while (foundIndex !== -1) {
              perEventHandlers.splice(foundIndex, 1);
              foundIndex = perEventHandlers.indexOf(listener, foundIndex);
            }
          } else {
            perEventHandlers.length = 0;
          }
        }
      }
    }
    return this;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.handlers`.
 * @private
 */
  var _clientListeners = function(eventType) {
    var copy = null, handlers = _clientMeta[this.id] && _clientMeta[this.id].handlers;
    if (handlers) {
      if (typeof eventType === "string" && eventType) {
        copy = handlers[eventType] ? handlers[eventType].slice(0) : [];
      } else {
        copy = _deepCopy(handlers);
      }
    }
    return copy;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.emit`.
 * @private
 */
  var _clientEmit = function(event) {
    if (_clientShouldEmit.call(this, event)) {
      if (typeof event === "object" && event && typeof event.type === "string" && event.type) {
        event = _extend({}, event);
      }
      var eventCopy = _extend({}, _createEvent(event), {
        client: this
      });
      _clientDispatchCallbacks.call(this, eventCopy);
    }
    return this;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.clip`.
 * @private
 */
  var _clientClip = function(elements) {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to clip element(s) to a destroyed ZeroClipboard client instance");
    }
    elements = _prepClip(elements);
    for (var i = 0; i < elements.length; i++) {
      if (_hasOwn.call(elements, i) && elements[i] && elements[i].nodeType === 1) {
        if (!elements[i].zcClippingId) {
          elements[i].zcClippingId = "zcClippingId_" + _elementIdCounter++;
          _elementMeta[elements[i].zcClippingId] = [ this.id ];
          if (_globalConfig.autoActivate === true) {
            _addMouseHandlers(elements[i]);
          }
        } else if (_elementMeta[elements[i].zcClippingId].indexOf(this.id) === -1) {
          _elementMeta[elements[i].zcClippingId].push(this.id);
        }
        var clippedElements = _clientMeta[this.id] && _clientMeta[this.id].elements;
        if (clippedElements.indexOf(elements[i]) === -1) {
          clippedElements.push(elements[i]);
        }
      }
    }
    return this;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.unclip`.
 * @private
 */
  var _clientUnclip = function(elements) {
    var meta = _clientMeta[this.id];
    if (!meta) {
      return this;
    }
    var clippedElements = meta.elements;
    var arrayIndex;
    if (typeof elements === "undefined") {
      elements = clippedElements.slice(0);
    } else {
      elements = _prepClip(elements);
    }
    for (var i = elements.length; i--; ) {
      if (_hasOwn.call(elements, i) && elements[i] && elements[i].nodeType === 1) {
        arrayIndex = 0;
        while ((arrayIndex = clippedElements.indexOf(elements[i], arrayIndex)) !== -1) {
          clippedElements.splice(arrayIndex, 1);
        }
        var clientIds = _elementMeta[elements[i].zcClippingId];
        if (clientIds) {
          arrayIndex = 0;
          while ((arrayIndex = clientIds.indexOf(this.id, arrayIndex)) !== -1) {
            clientIds.splice(arrayIndex, 1);
          }
          if (clientIds.length === 0) {
            if (_globalConfig.autoActivate === true) {
              _removeMouseHandlers(elements[i]);
            }
            delete elements[i].zcClippingId;
          }
        }
      }
    }
    return this;
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.elements`.
 * @private
 */
  var _clientElements = function() {
    var meta = _clientMeta[this.id];
    return meta && meta.elements ? meta.elements.slice(0) : [];
  };
  /**
 * The underlying implementation of `ZeroClipboard.Client.prototype.destroy`.
 * @private
 */
  var _clientDestroy = function() {
    if (!_clientMeta[this.id]) {
      return;
    }
    this.unclip();
    this.off();
    delete _clientMeta[this.id];
  };
  /**
 * Inspect an Event to see if the Client (`this`) should honor it for emission.
 * @private
 */
  var _clientShouldEmit = function(event) {
    if (!(event && event.type)) {
      return false;
    }
    if (event.client && event.client !== this) {
      return false;
    }
    var meta = _clientMeta[this.id];
    var clippedEls = meta && meta.elements;
    var hasClippedEls = !!clippedEls && clippedEls.length > 0;
    var goodTarget = !event.target || hasClippedEls && clippedEls.indexOf(event.target) !== -1;
    var goodRelTarget = event.relatedTarget && hasClippedEls && clippedEls.indexOf(event.relatedTarget) !== -1;
    var goodClient = event.client && event.client === this;
    if (!meta || !(goodTarget || goodRelTarget || goodClient)) {
      return false;
    }
    return true;
  };
  /**
 * Handle the actual dispatching of events to a client instance.
 *
 * @returns `undefined`
 * @private
 */
  var _clientDispatchCallbacks = function(event) {
    var meta = _clientMeta[this.id];
    if (!(typeof event === "object" && event && event.type && meta)) {
      return;
    }
    var async = _shouldPerformAsync(event);
    var wildcardTypeHandlers = meta && meta.handlers["*"] || [];
    var specificTypeHandlers = meta && meta.handlers[event.type] || [];
    var handlers = wildcardTypeHandlers.concat(specificTypeHandlers);
    if (handlers && handlers.length) {
      var i, len, func, context, eventCopy, originalContext = this;
      for (i = 0, len = handlers.length; i < len; i++) {
        func = handlers[i];
        context = originalContext;
        if (typeof func === "string" && typeof _window[func] === "function") {
          func = _window[func];
        }
        if (typeof func === "object" && func && typeof func.handleEvent === "function") {
          context = func;
          func = func.handleEvent;
        }
        if (typeof func === "function") {
          eventCopy = _extend({}, event);
          _dispatchCallback(func, context, [ eventCopy ], async);
        }
      }
    }
  };
  /**
 * Prepares the elements for clipping/unclipping.
 *
 * @returns An Array of elements.
 * @private
 */
  var _prepClip = function(elements) {
    if (typeof elements === "string") {
      elements = [];
    }
    return typeof elements.length !== "number" ? [ elements ] : elements;
  };
  /**
 * Add a `mouseover` handler function for a clipped element.
 *
 * @returns `undefined`
 * @private
 */
  var _addMouseHandlers = function(element) {
    if (!(element && element.nodeType === 1)) {
      return;
    }
    var _suppressMouseEvents = function(event) {
      if (!(event || (event = _window.event))) {
        return;
      }
      if (event._source !== "js") {
        event.stopImmediatePropagation();
        event.preventDefault();
      }
      delete event._source;
    };
    var _elementMouseOver = function(event) {
      if (!(event || (event = _window.event))) {
        return;
      }
      _suppressMouseEvents(event);
      ZeroClipboard.focus(element);
    };
    element.addEventListener("mouseover", _elementMouseOver, false);
    element.addEventListener("mouseout", _suppressMouseEvents, false);
    element.addEventListener("mouseenter", _suppressMouseEvents, false);
    element.addEventListener("mouseleave", _suppressMouseEvents, false);
    element.addEventListener("mousemove", _suppressMouseEvents, false);
    _mouseHandlers[element.zcClippingId] = {
      mouseover: _elementMouseOver,
      mouseout: _suppressMouseEvents,
      mouseenter: _suppressMouseEvents,
      mouseleave: _suppressMouseEvents,
      mousemove: _suppressMouseEvents
    };
  };
  /**
 * Remove a `mouseover` handler function for a clipped element.
 *
 * @returns `undefined`
 * @private
 */
  var _removeMouseHandlers = function(element) {
    if (!(element && element.nodeType === 1)) {
      return;
    }
    var mouseHandlers = _mouseHandlers[element.zcClippingId];
    if (!(typeof mouseHandlers === "object" && mouseHandlers)) {
      return;
    }
    var key, val, mouseEvents = [ "move", "leave", "enter", "out", "over" ];
    for (var i = 0, len = mouseEvents.length; i < len; i++) {
      key = "mouse" + mouseEvents[i];
      val = mouseHandlers[key];
      if (typeof val === "function") {
        element.removeEventListener(key, val, false);
      }
    }
    delete _mouseHandlers[element.zcClippingId];
  };
  /**
 * Creates a new ZeroClipboard client instance.
 * Optionally, auto-`clip` an element or collection of elements.
 *
 * @constructor
 */
  ZeroClipboard._createClient = function() {
    _clientConstructor.apply(this, _args(arguments));
  };
  /**
 * Register an event listener to the client.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.on = function() {
    return _clientOn.apply(this, _args(arguments));
  };
  /**
 * Unregister an event handler from the client.
 * If no `listener` function/object is provided, it will unregister all handlers for the provided `eventType`.
 * If no `eventType` is provided, it will unregister all handlers for every event type.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.off = function() {
    return _clientOff.apply(this, _args(arguments));
  };
  /**
 * Retrieve event listeners for an `eventType` from the client.
 * If no `eventType` is provided, it will retrieve all listeners for every event type.
 *
 * @returns array of listeners for the `eventType`; if no `eventType`, then a map/hash object of listeners for all event types; or `null`
 */
  ZeroClipboard.prototype.handlers = function() {
    return _clientListeners.apply(this, _args(arguments));
  };
  /**
 * Event emission receiver from the Flash object for this client's registered JavaScript event listeners.
 *
 * @returns For the "copy" event, returns the Flash-friendly "clipData" object; otherwise `undefined`.
 */
  ZeroClipboard.prototype.emit = function() {
    return _clientEmit.apply(this, _args(arguments));
  };
  /**
 * Register clipboard actions for new element(s) to the client.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.clip = function() {
    return _clientClip.apply(this, _args(arguments));
  };
  /**
 * Unregister the clipboard actions of previously registered element(s) on the page.
 * If no elements are provided, ALL registered elements will be unregistered.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.unclip = function() {
    return _clientUnclip.apply(this, _args(arguments));
  };
  /**
 * Get all of the elements to which this client is clipped.
 *
 * @returns array of clipped elements
 */
  ZeroClipboard.prototype.elements = function() {
    return _clientElements.apply(this, _args(arguments));
  };
  /**
 * Self-destruct and clean up everything for a single client.
 * This will NOT destroy the embedded Flash object.
 *
 * @returns `undefined`
 */
  ZeroClipboard.prototype.destroy = function() {
    return _clientDestroy.apply(this, _args(arguments));
  };
  /**
 * Stores the pending plain text to inject into the clipboard.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.setText = function(text) {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to set pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    ZeroClipboard.setData("text/plain", text);
    return this;
  };
  /**
 * Stores the pending HTML text to inject into the clipboard.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.setHtml = function(html) {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to set pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    ZeroClipboard.setData("text/html", html);
    return this;
  };
  /**
 * Stores the pending rich text (RTF) to inject into the clipboard.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.setRichText = function(richText) {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to set pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    ZeroClipboard.setData("application/rtf", richText);
    return this;
  };
  /**
 * Stores the pending data to inject into the clipboard.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.setData = function() {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to set pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    ZeroClipboard.setData.apply(this, _args(arguments));
    return this;
  };
  /**
 * Clears the pending data to inject into the clipboard.
 * If no `format` is provided, all pending data formats will be cleared.
 *
 * @returns `this`
 */
  ZeroClipboard.prototype.clearData = function() {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to clear pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    ZeroClipboard.clearData.apply(this, _args(arguments));
    return this;
  };
  /**
 * Gets a copy of the pending data to inject into the clipboard.
 * If no `format` is provided, a copy of ALL pending data formats will be returned.
 *
 * @returns `String` or `Object`
 */
  ZeroClipboard.prototype.getData = function() {
    if (!_clientMeta[this.id]) {
      throw new Error("Attempted to get pending clipboard data from a destroyed ZeroClipboard client instance");
    }
    return ZeroClipboard.getData.apply(this, _args(arguments));
  };
  if (typeof define === "function" && define.amd) {
    define(function() {
      return ZeroClipboard;
    });
  } else if (typeof module === "object" && module && typeof module.exports === "object" && module.exports) {
    module.exports = ZeroClipboard;
  } else {
    window.ZeroClipboard = ZeroClipboard;
  }
})(function() {
  return this || window;
}());