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line source |
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bsw@519
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1 if (!jsFail) {
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bsw@519
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2 window.addEventListener("load", function(event) {
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bsw@519
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3 var originalElement;
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bsw@519
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4 var draggedElement;
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bsw@519
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5 var mouseX;
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bsw@519
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6 var mouseY;
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bsw@519
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7 var mouseOffsetX;
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bsw@519
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8 var mouseOffsetY;
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bsw@519
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9 var elementOffsetX;
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bsw@519
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10 var elementOffsetY;
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bsw@519
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11 var dropFunc;
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bsw@519
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12 var dragElement = function(element, func) {
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bsw@519
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13 //if (typeof(element) == "string") element = document.getElementById(element);
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bsw@519
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14 originalElement = element;
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bsw@519
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15 draggedElement = originalElement.cloneNode(true);
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bsw@519
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16 originalElement.style.visibility = "hidden";
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bsw@519
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17 draggedElement.style.margin = 0;
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bsw@519
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18 draggedElement.style.position = "absolute";
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bsw@519
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19 draggedElement.style.left = elementOffsetX = originalElement.offsetLeft;
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bsw@519
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20 draggedElement.style.top = elementOffsetY = originalElement.offsetTop;
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bsw@519
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21 draggedElement.style.width = originalElement.clientWidth;
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bsw@519
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22 draggedElement.style.height = originalElement.clientHeight;
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bsw@519
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23 draggedElement.style.backgroundColor = "#eee";
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bsw@519
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24 draggedElement.style.opacity = 0.8;
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bsw@519
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25 originalElement.offsetParent.appendChild(draggedElement);
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bsw@519
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26 // workaround for wrong clientWidth and clientHeight information:
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bsw@519
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27 draggedElement.style.width = 2*originalElement.clientWidth - draggedElement.clientWidth;
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bsw@519
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28 draggedElement.style.height = 2*originalElement.clientHeight - draggedElement.clientHeight;
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bsw@519
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29 mouseOffsetX = mouseX;
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bsw@519
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30 mouseOffsetY = mouseY;
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bsw@519
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31 dropFunc = func;
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bsw@519
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32 };
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bsw@519
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33 window.addEventListener("mousemove", function(event) {
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bsw@519
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34 mouseX = event.pageX;
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bsw@519
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35 mouseY = event.pageY;
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bsw@519
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36 if (draggedElement) {
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bsw@519
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37 draggedElement.style.left = elementOffsetX + mouseX - mouseOffsetX;
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bsw@519
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38 draggedElement.style.top = elementOffsetY + mouseY - mouseOffsetY;
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bsw@519
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39 }
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bsw@519
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40 }, true);
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bsw@519
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41 var mouseDrop = function(event) {
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bsw@519
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42 if (draggedElement) {
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bsw@519
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43 dropFunc(
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bsw@519
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44 originalElement,
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bsw@519
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45 elementOffsetX + mouseX - mouseOffsetX,
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bsw@519
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46 elementOffsetY + mouseY - mouseOffsetY
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bsw@519
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47 );
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bsw@519
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48 originalElement.style.visibility = '';
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bsw@519
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49 draggedElement.parentNode.removeChild(draggedElement);
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bsw@519
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50 originalElement = null;
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bsw@519
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51 draggedElement = null;
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bsw@519
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52 }
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bsw@519
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53 };
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bsw@519
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54 window.addEventListener("mouseup", mouseDrop, true);
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bsw@519
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55 window.addEventListener("mousedown", mouseDrop, true);
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bsw@519
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56 var elements = document.getElementsByTagName("*");
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bsw@519
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57 for (var i=0; i<elements.length; i++) {
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bsw@519
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58 var element = elements[i];
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bsw@519
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59 if (element.className == "movable") {
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bsw@519
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60 element.addEventListener("mousedown", function(event) {
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bsw@519
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61 event.target.style.cursor = "move";
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bsw@519
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62 dragElement(event.currentTarget, function(element, dropX, dropY) {
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bsw@519
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63 event.target.style.cursor = '';
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bsw@519
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64 elementDropped(element, dropX, dropY);
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bsw@519
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65 });
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bsw@519
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66 event.preventDefault();
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bsw@519
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67 }, false);
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bsw@519
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68 } else if (element.className == "clickable") {
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bsw@519
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69 element.addEventListener("mousedown", function(event) {
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bsw@519
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70 event.stopPropagation();
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bsw@519
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71 }, false);
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bsw@519
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72 }
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bsw/jbe@5
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73 }
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bsw@519
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74 }, false);
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bsw@519
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75
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bsw@519
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76 } |