238 lines
10 KiB
HTML
238 lines
10 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<title>Dragging Fields Between Records</title>
|
|
<meta name="description" content="Drag and drop items between nodes." />
|
|
<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
|
|
<meta charset="UTF-8">
|
|
<script src="../release/go.js"></script>
|
|
<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
|
|
<script id="code">
|
|
// Custom DraggingTool for dragging fields instead of whole Parts.
|
|
// FieldDraggingTool.fieldTemplate needs to be set to a template of the field that you want shown while dragging.
|
|
function FieldDraggingTool() {
|
|
go.DraggingTool.call(this);
|
|
this.fieldTemplate = null; // THIS NEEDS TO BE SET before a drag starts
|
|
this.temporaryPart = null;
|
|
}
|
|
go.Diagram.inherit(FieldDraggingTool, go.DraggingTool);
|
|
|
|
// override this method
|
|
/** @override */
|
|
FieldDraggingTool.prototype.findDraggablePart = function() {
|
|
var diagram = this.diagram;
|
|
var obj = diagram.findObjectAt(diagram.lastInput.documentPoint);
|
|
while (obj !== null && obj.type !== go.Panel.TableRow) obj = obj.panel;
|
|
if (obj !== null && obj.type === go.Panel.TableRow &&
|
|
this.fieldTemplate !== null && this.temporaryPart === null) {
|
|
var tempPart =
|
|
go.GraphObject.make(go.Node, "Table",
|
|
{ layerName: "Tool", locationSpot: go.Spot.Center },
|
|
this.fieldTemplate.copy()); // copy the template!
|
|
this.temporaryPart = tempPart;
|
|
// assume OBJ is now a Panel representing a field, bound to field data
|
|
// update the temporary Part via data binding
|
|
tempPart.location = diagram.lastInput.documentPoint; // need to set location explicitly
|
|
diagram.add(tempPart); // add to Diagram before setting data
|
|
tempPart.data = obj.data; // bind to the same field data as being dragged
|
|
return tempPart;
|
|
}
|
|
return go.DraggingTool.prototype.findDraggablePart.call(this);
|
|
};
|
|
|
|
/** @override */
|
|
FieldDraggingTool.prototype.doActivate = function() {
|
|
if (this.temporaryPart === null) return go.DraggingTool.prototype.doActivate.call(this);
|
|
var diagram = this.diagram;
|
|
this.standardMouseSelect();
|
|
this.isActive = true;
|
|
// instead of the usual result of computeEffectiveCollection, just use the temporaryPart alone
|
|
var map = new go.Map(go.Part, Object);
|
|
map.add(this.temporaryPart, { point: diagram.lastInput.documentPoint.copy() });
|
|
this.draggedParts = map;
|
|
this.startTransaction("Drag Field");
|
|
diagram.isMouseCaptured = true;
|
|
};
|
|
|
|
/** @override */
|
|
FieldDraggingTool.prototype.doDeactivate = function() {
|
|
if (this.temporaryPart === null) return go.DraggingTool.prototype.doDeactivate.call(this);
|
|
var diagram = this.diagram;
|
|
// make sure the temporary Part is no longer in the Diagram
|
|
diagram.remove(this.temporaryPart);
|
|
this.temporaryPart = null;
|
|
// now do all the standard deactivation cleanup,
|
|
// including setting isActive = false, clearing out draggedParts, calling stopTransaction(),
|
|
// and setting diagram.isMouseCaptured = false
|
|
go.DraggingTool.prototype.doDeactivate.call(this);
|
|
};
|
|
|
|
/** @override */
|
|
FieldDraggingTool.prototype.doMouseMove = function() {
|
|
if (!this.isActive) return;
|
|
if (this.temporaryPart === null) return go.DraggingTool.prototype.doMouseMove.call(this);
|
|
var diagram = this.diagram;
|
|
// just move the temporaryPart (in draggedParts), without regard to moving or copying permissions of the Node
|
|
var offset = diagram.lastInput.documentPoint.copy().subtract(diagram.firstInput.documentPoint);
|
|
this.moveParts(this.draggedParts, offset, false);
|
|
};
|
|
|
|
/** @override */
|
|
FieldDraggingTool.prototype.doMouseUp = function() {
|
|
if (!this.isActive) return;
|
|
if (this.temporaryPart === null) return go.DraggingTool.prototype.doMouseUp.call(this);
|
|
var diagram = this.diagram;
|
|
var data = this.temporaryPart.data;
|
|
var dest = diagram.findPartAt(diagram.lastInput.documentPoint, false);
|
|
if (dest !== null && dest.data && dest.data.fields) {
|
|
var panel = dest.findObject("TABLE");
|
|
var idx = panel.findRowForLocalY(panel.getLocalPoint(diagram.lastInput.documentPoint).y);
|
|
diagram.model.insertArrayItem(dest.data.fields, idx+1,
|
|
{ name: data.name, info: data.info, color: data.color, figure: data.figure });
|
|
}
|
|
var src = this.currentPart;
|
|
// whether or not there was a destination node, delete the original field
|
|
if (!(diagram.lastInput.control || diagram.lastInput.meta)) {
|
|
var sidx = src.data.fields.indexOf(data);
|
|
if (sidx >= 0) {
|
|
diagram.model.removeArrayItem(src.data.fields, sidx);
|
|
}
|
|
}
|
|
this.transactionResult = "Inserted Field";
|
|
this.stopTool();
|
|
};
|
|
// end of FieldDraggingTool
|
|
|
|
|
|
function init() {
|
|
if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
|
|
var $ = go.GraphObject.make; // for conciseness in defining templates
|
|
|
|
myDiagram =
|
|
$(go.Diagram, "myDiagramDiv",
|
|
{
|
|
initialContentAlignment: go.Spot.Center,
|
|
validCycle: go.Diagram.CycleNotDirected, // don't allow loops
|
|
draggingTool: $(FieldDraggingTool), // use custom DraggingTool
|
|
// automatically update the model that is shown on this page
|
|
"ModelChanged": function(e) { if (e.isTransactionFinished) showModel(); },
|
|
"undoManager.isEnabled": true
|
|
});
|
|
|
|
// This template is a Panel that is used to represent each item in a Panel.itemArray.
|
|
// The Panel is data bound to the item object.
|
|
// This template needs to be used by the FieldDraggingTool as well as the Diagram.nodeTemplate.
|
|
var fieldTemplate =
|
|
$(go.Panel, "TableRow", // this Panel is a row in the containing Table
|
|
new go.Binding("portId", "name"), // this Panel is a "port"
|
|
{ background: "transparent", // so this port's background can be picked by the mouse
|
|
fromSpot: go.Spot.Right, // links only go from the right side to the left side
|
|
toSpot: go.Spot.Left }, // allow drawing links from or to this port
|
|
$(go.Shape,
|
|
{ width: 12, height: 12, column: 0, strokeWidth: 2, margin: 4 },
|
|
new go.Binding("figure", "figure"),
|
|
new go.Binding("fill", "color")),
|
|
$(go.TextBlock,
|
|
{ margin: new go.Margin(0, 2), column: 1, font: "bold 13px sans-serif" },
|
|
new go.Binding("text", "name")),
|
|
$(go.TextBlock,
|
|
{ margin: new go.Margin(0, 2), column: 2, font: "13px sans-serif" },
|
|
new go.Binding("text", "info"))
|
|
);
|
|
|
|
// the FieldDraggingTool needs a template for what to show while dragging
|
|
myDiagram.toolManager.draggingTool.fieldTemplate = fieldTemplate;
|
|
|
|
// This template represents a whole "record".
|
|
myDiagram.nodeTemplate =
|
|
$(go.Node, "Auto",
|
|
{
|
|
movable: false,
|
|
copyable: false,
|
|
deletable: false,
|
|
locationSpot: go.Spot.Center
|
|
},
|
|
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
|
|
// this rectangular shape surrounds the content of the node
|
|
$(go.Shape,
|
|
{ fill: "#EEEEEE" }),
|
|
// the content consists of a header and a list of items
|
|
$(go.Panel, "Vertical",
|
|
// this is the header for the whole node
|
|
$(go.Panel, "Auto",
|
|
{ stretch: go.GraphObject.Horizontal }, // as wide as the whole node
|
|
$(go.Shape,
|
|
{ fill: "#1570A6", stroke: null }),
|
|
$(go.TextBlock,
|
|
{
|
|
alignment: go.Spot.Center,
|
|
margin: 3,
|
|
stroke: "white",
|
|
textAlign: "center",
|
|
font: "bold 12pt sans-serif"
|
|
},
|
|
new go.Binding("text", "title"))),
|
|
// this Panel holds a Panel for each item object in the itemArray;
|
|
// each item Panel is defined by the itemTemplate to be a TableRow in this Table
|
|
$(go.Panel, "Table",
|
|
{
|
|
name: "TABLE",
|
|
padding: 2,
|
|
minSize: new go.Size(100, 10),
|
|
defaultStretch: go.GraphObject.Horizontal,
|
|
itemTemplate: fieldTemplate
|
|
},
|
|
new go.Binding("itemArray", "fields")
|
|
) // end Table Panel of items
|
|
) // end Vertical Panel
|
|
); // end Node
|
|
|
|
myDiagram.model =
|
|
$(go.GraphLinksModel,
|
|
{
|
|
linkFromPortIdProperty: "fromPort",
|
|
linkToPortIdProperty: "toPort",
|
|
copiesArrays: true,
|
|
copiesArrayObjects: true,
|
|
nodeDataArray: [
|
|
{
|
|
key: 1,
|
|
title: "Record1",
|
|
fields: [
|
|
{ name: "field1", info: "", color: "#F7B84B", figure: "Ellipse" },
|
|
{ name: "field2", info: "the second one", color: "#F25022", figure: "Ellipse" },
|
|
{ name: "fieldThree", info: "3rd", color: "#00BCF2" }
|
|
],
|
|
loc: "0 0"
|
|
},
|
|
{
|
|
key: 2,
|
|
title: "Record2",
|
|
fields: [
|
|
{ name: "fieldA", info: "", color: "#FFB900", figure: "Diamond" }
|
|
],
|
|
loc: "250 0"
|
|
}
|
|
]
|
|
});
|
|
|
|
showModel(); // show the diagram's initial model
|
|
|
|
function showModel() {
|
|
document.getElementById("mySavedModel").textContent = myDiagram.model.toJson();
|
|
}
|
|
}
|
|
</script>
|
|
</head>
|
|
<body onload="init()">
|
|
<div id="sample">
|
|
<div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:300px"></div>
|
|
<p>Drag fields between records to move them; dragging within the same node can reorder them.
|
|
Fields can be copied when holding down the control key; they are deleted when dropped in the diagram's background.
|
|
The "record" Nodes are not movable or copyable or deletable.</p>
|
|
<p>The model data, automatically updated after each change or undo or redo:</p>
|
|
<textarea id="mySavedModel" style="width:100%;height:300px"></textarea>
|
|
</div>
|
|
</body>
|
|
</html> |