System.register(["src/client/graphics.js"], function (_export, _context) {
  "use strict";

  var pt, MousePosition, __SystemJSRewritingHack;
  _export("default", void 0);
  return {
    setters: [function (_srcClientGraphicsJs) {
      pt = _srcClientGraphicsJs.pt;
    }],
    execute: function () {
      __SystemJSRewritingHack = {};
      _recorder_._https__lively_kernel_org_lively4_lively4_ansgar_src_client_mouse_position_js = _recorder_._https__lively_kernel_org_lively4_lively4_ansgar_src_client_mouse_position_js || {};
      Object.defineProperty(_recorder_._https__lively_kernel_org_lively4_lively4_ansgar_src_client_mouse_position_js, "pt", {
        get() {
          return pt;
        },
        set(thisIsVererySecretVariableName) {
          pt = thisIsVererySecretVariableName;
          return true;
        },
        enumerable: true,
        configurable: true
      });
      _export("default", MousePosition = class MousePosition {
        static get context() {
          return "mouse position";
        }
        static get pt() {
          return this._pt || (this._pt = lively.pt(0, 0));
        }
        static elementsFromPoint({
          x,
          y
        }) {
          const checked = new Set();
          const elements = document.elementsFromPoint(x, y);
          elements;
          let e;
          while (e = elements.find(e => !checked.has(e))) {
            checked.add(e);
            if (e.shadowRoot) {
              const newElements = e.shadowRoot.elementsFromPoint(x, y).difference(elements);
              elements.splice(elements.indexOf(e), 0, ...newElements);
            }
          }
          return elements;
        }
        static set pt(pt) {
          return this._pt = pt;
        }
        static showPoint(pt) {
          const offset = 20;
          lively.showPoint(pt.addXY(offset, offset));
          lively.showPoint(pt.addXY(offset, -offset));
          lively.showPoint(pt.addXY(-offset, offset));
          lively.showPoint(pt.addXY(-offset, -offset));
        }
        static onPointerMove(e) {
          this.pt = pt(e.clientX, e.clientY);
        }
        static load() {
          const options = {
            capture: true,
            passive: true
          };
          lively.removeEventListener(this.context);
          lively.addEventListener(this.context, document, "pointermove", this.onPointerMove.bind(this), options);
        }
      }); // $(function() {
      //   // Get the HTML in #hoverText - just a wrapper for convenience
      //   var $hoverText = $("#hoverText");
      //   // Get the full word the cursor is over regardless of span breaks
      //   function getFullWord(event) {
      //      var i, begin, end, range, textNode, offset;
      //     // Internet Explorer
      //     if (document.body.createTextRange) {
      //        try {
      //          range = document.body.createTextRange();
      //          range.moveToPoint(event.clientX, event.clientY);
      //          range.select();
      //          range = getTextRangeBoundaryPosition(range, true);
      //          textNode = range.node;
      //          offset = range.offset;
      //        } catch(e) {
      //          return ""; // Sigh, IE
      //        }
      //     }
      //     // Firefox, Safari
      //     // REF: https://developer.mozilla.org/en-US/docs/Web/API/Document/caretPositionFromPoint
      //     else if (document.caretPositionFromPoint) {
      //       range = document.caretPositionFromPoint(event.clientX, event.clientY);
      //       textNode = range.offsetNode;
      //       offset = range.offset;
      //       // Chrome
      //       // REF: https://developer.mozilla.org/en-US/docs/Web/API/document/caretRangeFromPoint
      //     } else if (document.caretRangeFromPoint) {
      //       range = document.caretRangeFromPoint(event.clientX, event.clientY);
      //       textNode = range.startContainer;
      //       offset = range.startOffset;
      //     }
      //     // Only act on text nodes
      //     if (!textNode || textNode.nodeType !== Node.TEXT_NODE) {
      //       return "";
      //     }
      //     var data = textNode.textContent;
      //     // Sometimes the offset can be at the 'length' of the data.
      //     // It might be a bug with this 'experimental' feature
      //     // Compensate for this below
      //     if (offset >= data.length) {
      //       offset = data.length - 1;
      //     }
      //     // Ignore the cursor on spaces - these aren't words
      //     if (isW(data[offset])) {
      //       return "";
      //     }
      //     // Scan behind the current character until whitespace is found, or beginning
      //     i = begin = end = offset;
      //     while (i > 0 && !isW(data[i - 1])) {
      //       i--;
      //     }
      //     begin = i;
      //     // Scan ahead of the current character until whitespace is found, or end
      //     i = offset;
      //     while (i < data.length - 1 && !isW(data[i + 1])) {
      //       i++;
      //     }
      //     end = i;
      //     // This is our temporary word
      //     var word = data.substring(begin, end + 1);
      //     // Demo only
      //     showBridge(null, null, null);
      //     // If at a node boundary, cross over and see what 
      //     // the next word is and check if this should be added to our temp word
      //     if (end === data.length - 1 || begin === 0) {
      //       var nextNode = getNextNode(textNode);
      //       var prevNode = getPrevNode(textNode);
      //       // Get the next node text
      //       if (end == data.length - 1 && nextNode) {
      //         var nextText = nextNode.textContent;
      //         // Demo only
      //         showBridge(word, nextText, null);
      //         // Add the letters from the next text block until a whitespace, or end
      //         i = 0;
      //         while (i < nextText.length && !isW(nextText[i])) {
      //           word += nextText[i++];
      //         }
      //       } else if (begin === 0 && prevNode) {
      //         // Get the previous node text
      //         var prevText = prevNode.textContent;
      //         // Demo only
      //         showBridge(word, null, prevText);
      //         // Add the letters from the next text block until a whitespace, or end
      //         i = prevText.length - 1;
      //         while (i >= 0 && !isW(prevText[i])) {
      //           word = prevText[i--] + word;
      //         }
      //       }
      //     }
      //     return word;
      //   }
      //   // Return the word the cursor is over
      //   $hoverText.mousemove(function(e) {
      //     var word = getFullWord(e);
      //     if (word !== "") {
      //       $("#result").text(word);
      //     }
      //   });
      // });
      // // Helper functions
      // // Whitespace checker
      // function isW(s) {
      //   return /[ \f\n\r\t\v\u00A0\u2028\u2029]/.test(s);
      // }
      // // Barrier nodes are BR, DIV, P, PRE, TD, TR, ... 
      // function isBarrierNode(node) {
      //   return node ? /^(BR|DIV|P|PRE|TD|TR|TABLE)$/i.test(node.nodeName) : true;
      // }
      // // Try to find the next adjacent node
      // function getNextNode(node) {
      //   var n = null;
      //   // Does this node have a sibling?
      //   if (node.nextSibling) {
      //     n = node.nextSibling;
      //     // Doe this node's container have a sibling?
      //   } else if (node.parentNode && node.parentNode.nextSibling) {
      //     n = node.parentNode.nextSibling;
      //   }
      //   return isBarrierNode(n) ? null : n;
      // }
      // // Try to find the prev adjacent node
      // function getPrevNode(node) {
      //   var n = null;
      //   // Does this node have a sibling?
      //   if (node.previousSibling) {
      //     n = node.previousSibling;
      //     // Doe this node's container have a sibling?
      //   } else if (node.parentNode && node.parentNode.previousSibling) {
      //     n = node.parentNode.previousSibling;
      //   }
      //   return isBarrierNode(n) ? null : n;
      // }
      // // REF: http://stackoverflow.com/questions/3127369/how-to-get-selected-textnode-in-contenteditable-div-in-ie
      // function getChildIndex(node) {
      //   var i = 0;
      //   while( (node = node.previousSibling) ) {
      //     i++;
      //   }
      //   return i;
      // }
      // // All this code just to make this work with IE, OTL
      // // REF: http://stackoverflow.com/questions/3127369/how-to-get-selected-textnode-in-contenteditable-div-in-ie
      // function getTextRangeBoundaryPosition(textRange, isStart) {
      //   var workingRange = textRange.duplicate();
      //   workingRange.collapse(isStart);
      //   var containerElement = workingRange.parentElement();
      //   var workingNode = document.createElement("span");
      //   var comparison, workingComparisonType = isStart ?
      //     "StartToStart" : "StartToEnd";
      //   var boundaryPosition, boundaryNode;
      //   // Move the working range through the container's children, starting at
      //   // the end and working backwards, until the working range reaches or goes
      //   // past the boundary we're interested in
      //   do {
      //     containerElement.insertBefore(workingNode, workingNode.previousSibling);
      //     workingRange.moveToElementText(workingNode);
      //   } while ( (comparison = workingRange.compareEndPoints(
      //     workingComparisonType, textRange)) > 0 && workingNode.previousSibling);
      //   // We've now reached or gone past the boundary of the text range we're
      //   // interested in so have identified the node we want
      //   boundaryNode = workingNode.nextSibling;
      //   if (comparison == -1 && boundaryNode) {
      //     // This must be a data node (text, comment, cdata) since we've overshot.
      //     // The working range is collapsed at the start of the node containing
      //     // the text range's boundary, so we move the end of the working range
      //     // to the boundary point and measure the length of its text to get
      //     // the boundary's offset within the node
      //     workingRange.setEndPoint(isStart ? "EndToStart" : "EndToEnd", textRange);
      //     boundaryPosition = {
      //       node: boundaryNode,
      //       offset: workingRange.text.length
      //     };
      //   } else {
      //     // We've hit the boundary exactly, so this must be an element
      //     boundaryPosition = {
      //       node: containerElement,
      //       offset: getChildIndex(workingNode)
      //     };
      //   }
      //   // Clean up
      //   workingNode.parentNode.removeChild(workingNode);
      //   return boundaryPosition;
      // }
      // // DEMO-ONLY code - this shows how the word is recombined across boundaries
      // function showBridge(word, nextText, prevText) {
      //   if (nextText) {
      //     $("#bridge").html("<span class=\"word\">" + word + "</span>  |  " + nextText.substring(0, 20) + "...").show();
      //   } else if (prevText) {
      //     $("#bridge").html("..." + prevText.substring(prevText.length - 20, prevText.length) + "  |  <span class=\"word\">" + word + "</span>").show();
      //   } else {
      //     $("#bridge").hide();
      //   }
      // }
      Object.defineProperty(_recorder_._https__lively_kernel_org_lively4_lively4_ansgar_src_client_mouse_position_js, "MousePosition", {
        get() {
          return MousePosition;
        },
        set(thisIsVererySecretVariableName) {
          _export("default", MousePosition = thisIsVererySecretVariableName);
          return true;
        },
        enumerable: true,
        configurable: true
      });
      MousePosition.load();
    }
  };
});