var _preprocessEvent = function()

in public/webpackShims/zeroclip/zero_clipboard.js [940:1087]
138 lines of code
53 McCabe index (conditional complexity)

  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            outdated: event.name === "flash-outdated",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            outdated: false,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          outdated: false,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;
    }
  };