Drop zone
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Last revised July 20, 2008. --> <!-- The following code is revised from SmartClient demo code(SmartClient_70rc2_LGPL.zip).--> <HTML><HEAD> <SCRIPT>var isomorphicDir="isomorphic/";</SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_Core.js></SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_Foundation.js></SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_Containers.js></SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_Grids.js></SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_Forms.js></SCRIPT> <SCRIPT SRC=isomorphic/system/modules/ISC_DataBinding.js></SCRIPT> <SCRIPT SRC=isomorphic/skins/SmartClient/load_skin.js></SCRIPT> </HEAD><BODY> <!-- HTML form containing two checkbox controls --> <DIV STYLE='padding:0px 0px 0px 20px' CLASS='normal'> <form action="" method="POST" name="f"> <input type="Checkbox" name="intersect" onclick="setIntersectStyles(this.checked)">dropOver on widget intersection<br> <input type="Checkbox" name="resetPos">reset widget position on dragRepositionStop </form> </DIV> <SCRIPT> // -------------------------------------------------- // canDragReposition widget with TARGET dragAppearance // -------------------------------------------------- Canvas.create({ ID:"dragReposition", left:50, top:125, width:100, height:100, contents:"Target Drag", backgroundColor:"violet", canDragReposition:true, canDrop:true, dragAppearance:"target", dragRepositionStop:"if (resetPosition.checked) return false;" }); // -------------------------------------------------- // Outline Drag widget... // -------------------------------------------------- Canvas.create({ ID:"dragOutline", left:310, top:125, width:100, height:100, canDragReposition:true, canDrop:true, contents:"Outline Drag", backgroundColor:"gold", dragAppearance:"outline", dragRepositionStop:"if (resetPosition.checked) return false;" }); // -------------------------------------------------- // canDrag widget with TRACKER dragAppearance // -------------------------------------------------- Canvas.create({ ID:"dragTracked", left:50, top:385, width:100, height:100, contents:"Use Drag Tracker", backgroundColor:"lightgreen", canDragReposition:true, canDrop:true, dragAppearance:"tracker", setDragTracker:"EventHandler.setDragTracker(this.imgHTML('yinyang_icon.gif',20,20))", dragRepositionStop:"if (resetPosition.checked) return false;" }); // -------------------------------------------------- // Parent of next widget // -------------------------------------------------- Canvas.create({ ID:"topParent", left:310, top:385, width:100, height:100, canDrop:true, contents:"parent", backgroundColor:"salmon", dragRepositionStop:"if (resetPosition.checked) return false;", dragAppearance:"outline" }); // -------------------------------------------------- // canDragReposition child widget with dragTarget set to "top" // -------------------------------------------------- Canvas.create({ ID:"dragRepositionTop", autoDraw:false, left:20, top:20, width:60, height:60, contents:"Drag Reposition Top", backgroundColor:"mediumpurple", canDragReposition:true, dragTarget:"top" }); topParent.addChild(dragRepositionTop); // -------------------------------------------------- // canAcceptDrop widget // -------------------------------------------------- Canvas.create({ ID:"dropZone", left:180, top:255, width:100, height:100, contents:"Drop Zone", backgroundColor:"skyblue", canAcceptDrop:true, dropOver:"this.setBackgroundColor('powderblue')", dropOut:"this.setBackgroundColor('skyblue')", drop:"alert('drop')" }); //dropZone.sendToBack(); // -------------------------------------------------- // scripts for working with the HTML form // -------------------------------------------------- // shortcut references to form elements var resetPosition = document.f.resetPos; // switch dragIntersectStyles function setIntersectStyles(on) { if (on) { dragTracked.dragIntersectStyle="rect"; dragTracked.setContents("Use Drag Tracker (intersect rect)"); dragReposition.dragIntersectStyle="rect"; dragReposition.setContents("Drag Reposition (intersect rect)"); dragOutline.dragIntersectStyle="rect"; dragOutline.setContents("Outline Drag (intersect rect)"); // NOTE: you need to change the dragIntersectStyle of the topParent, // since that ends up being the dragTarget topParent.dragIntersectStyle="rect"; dragRepositionTop.setContents("Drag Reposition Top (intersect rect)"); } else { dragTracked.dragIntersectStyle="mouse"; dragTracked.setContents("Use Drag Tracker"); dragReposition.dragIntersectStyle="mouse"; dragReposition.setContents("Drag Reposition"); dragOutline.dragIntersectStyle="mouse"; dragOutline.setContents("Outline Drag"); // NOTE: you need to change the dragIntersectStyle of the topParent, // since that ends up being the dragTarget topParent.dragIntersectStyle="mouse"; dragRepositionTop.setContents("Drag Reposition Top"); } } // initialize the form function initializeForm() { document.f.intersect.checked = false; resetPosition.checked = true; } Page.setEvent("load", "initializeForm()"); </SCRIPT> </BODY> </HTML>