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89 lines
2.4 KiB
HTML
89 lines
2.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>DHTML Tree Special Technics</title>
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</head>
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<body>
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<style>
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body {font-size:14px;line-height:18px;}
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.{font-family:arial;}
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h2 {cursor:pointer;font-size:20px;margin:30px 0px 40px 5px;line-height:10px}
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h3 {cursor:pointer;font-weight:normal;color:blue;text-decoration:underline;line-height:10px}
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h4 {cursor:pointer;font-weight:normal;color:black;text-decoration:underline;line-height:10px}
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.op {cursor:pointer;}
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div.block {margin-left:5px;}
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xmp {color:green;font-size:12px;margin:0px;font-family:courier;background-color:#e6e6fa;padding:2px}
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li {margin-top:2px;}
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</style>
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<h2 >DHTML Tree Special Technics</h2>
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<div class="block">
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<!--- Link functionality --->
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<a name="spec_link"><h3 >Links in tree</h3
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></a><div style="display:show" class="block">
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Xml for the tree:<br>
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<xmp>
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<tree..>
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<item ...>
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<userdata name=“myurl“>http://www.google.com</userdata>
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<item ...>
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<userdata name=“myurl“>http://groups.google.com</userdata>
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</item>
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</item>
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</xmp>
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<br>
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there is an event handler for click processing:
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<xmp>
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tree.setOnClickHandler(doOnClick);
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function doOnClick(nodeId){
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var myUrl = tree.getUserData(nodeId,“myurl“);
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window.open(myUrl);// or frames[“someframe“].location.href = myUrl
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}
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</xmp>
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</div>
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<!-- -->
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<a name="spec_dnd_out"><h3 >Drag-n-drop outside tree</h3
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></a><div style="display:show" class="block">
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Any page control can be set as “landing zone”. Here is an example:
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<xmp>
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<div id="treeboxbox_tree" style="width:200;height:200"></div>
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<input type="text" width="120px" id="sInput">
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<script>
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tree=new dhtmlXTreeObject("treeboxbox_tree","100%","100%",0);
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tree.setImagePath("../imgs/");
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//user defined drag and drop control with event handlers inside
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function s_control(){
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//action occures on drag
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this._drag=function(sourceHtmlObject,dhtmlObject,targetHtmlObject){
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targetHtmlObject.style.backgroundColor="";
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targetHtmlObject.value=sourceHtmlObject.parentObject.label;
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}
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//action occures on drag moved in landing zone
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this._dragIn=function(htmlObject,shtmlObject){
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htmlObject.style.backgroundColor="#fffacd";
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return htmlObject;
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}
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//action occures on drag moved out landing zone
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this._dragOut=function(htmlObject){
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htmlObject.style.backgroundColor="";
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return this;
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}
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}
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//set input control as “landing zone”
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tree.dragger.addDragLanding(document.getElementById('sInput'), new s_control);
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</script>
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</xmp>
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</div>
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</div>
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</body>
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</html>
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