systemdraganddropexample5.htm

来自「这是javascript高级程序设计的源码」· HTM 代码 · 共 29 行

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<html>
    <head>
        <title>System Drag And Drop Example</title>
        <script type="text/javascript">
            function handleDragDropEvent(oEvent) {
                var oTextbox = document.getElementById("txt1");
                oTextbox.value +=  oEvent.type + "\n";
                
                switch(oEvent.type) {
                    case "dragover":
                    case "dragenter":
                        oEvent.returnValue = false;
                }
            }                        
        </script>
    </head>
    <body>
        <p>Try dragging the text from the textbox to the red square.
        Drop target events fire now.</p>
        <p><input type="text" value="drag this text"
                  ondragstart="handleDragDropEvent(event)" ondrag="handleDragDropEvent(event)"
                  ondragend="handleDragDropEvent(event)" />
        <div style="background-color: red; height: 100px; width: 100px"
             ondragenter="handleDragDropEvent(event)" ondragover="handleDragDropEvent(event)" 
             ondragleave="handleDragDropEvent(event)" ondrop="handleDragDropEvent(event)"></div></p>
        <p><textarea rows="10" cols="25" readonly="readonly" id="txt1"></textarea></p>        
    </body>
</html>

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