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86 lines
3.7 KiB
HTML
Executable File
86 lines
3.7 KiB
HTML
Executable File
<!DOCTYPE html>
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<html>
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<head>
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<title>Local Storage Commands</title>
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<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
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<meta name="description" content="TypeScript: The LocalStorageCommandHandler extension enhances the copy and paste commands to use 'localStorage' as the storage mechanism." />
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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</head>
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<body>
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<div id="sample">
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<span style="display: inline-block; vertical-align: top;">
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<div id="myDiagramDiv" style="border: solid 1px black; width:300px; height:300px"></div>
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</span>
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<span style="display: inline-block; vertical-align: top;">
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<div id="myDiagramDiv2" style="border: solid 1px black; width:300px; height:300px"></div>
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</span>
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<p>
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This example demonstrates a custom <a>CommandHandler</a>.
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It uses localStorage as the repository for the clipboard, rather than an in-memory global variable.
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It is defined in its own file, as <a href="LocalStorageCommandHandler.ts">LocalStorageCommandHandler.ts</a>.
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</p>
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<p>
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Try copying and pasting between the above Diagrams, or between tabs/windows that contain Diagrams using LocalStorageCommandHandler.
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Note that when copying and pasting between Diagrams, it will work best if they have similar templates.
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</p>
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</div>
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<script type="module" id="code">
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import * as go from "../release/go-module.js";
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import { LocalStorageCommandHandler } from './LocalStorageCommandHandler.js';
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if (window.goSamples) window.goSamples(); // init for these samples -- you don't need to call this
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const $ = go.GraphObject.make; // for conciseness in defining templates
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const myDiagram = $(go.Diagram, 'myDiagramDiv', // create a Diagram for the DIV HTML element
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{
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commandHandler: new LocalStorageCommandHandler(),
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'undoManager.isEnabled': true // enable undo & redo
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});
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const myDiagram2 = $(go.Diagram, 'myDiagramDiv2', // create a Diagram for the DIV HTML element
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{
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commandHandler: new LocalStorageCommandHandler(),
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'undoManager.isEnabled': true // enable undo & redo
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});
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// define a simple Node template
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myDiagram.nodeTemplate =
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$(go.Node, 'Auto', // the Shape will go around the TextBlock
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$(go.Shape, 'RoundedRectangle', { strokeWidth: 0 },
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// Shape.fill is bound to Node.data.color
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new go.Binding('fill', 'color')), $(go.TextBlock, { margin: 8 }, // some room around the text
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// TextBlock.text is bound to Node.data.key
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new go.Binding('text', 'key')));
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myDiagram2.nodeTemplate = myDiagram.nodeTemplate;
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// create the model data that will be represented by Nodes and Links
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myDiagram.model = new go.GraphLinksModel([
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{ key: 'Alpha', color: 'lightblue' },
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{ key: 'Beta', color: 'orange' },
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{ key: 'Gamma', color: 'lightgreen' },
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{ key: 'Delta', color: 'pink' }
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], [
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{ from: 'Alpha', to: 'Beta' },
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{ from: 'Alpha', to: 'Gamma' },
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{ from: 'Beta', to: 'Beta' },
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{ from: 'Gamma', to: 'Delta' },
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{ from: 'Delta', to: 'Alpha' }
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]);
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myDiagram2.model = new go.GraphLinksModel([
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{ key: 'Alpha', color: 'lightblue' },
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{ key: 'Beta', color: 'orange' },
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{ key: 'Gamma', color: 'lightgreen' },
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{ key: 'Delta', color: 'pink' }
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], [
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{ from: 'Alpha', to: 'Beta' },
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{ from: 'Alpha', to: 'Gamma' },
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{ from: 'Beta', to: 'Beta' },
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{ from: 'Gamma', to: 'Delta' },
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{ from: 'Delta', to: 'Alpha' }
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]);
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window.myDiagram = myDiagram; // Attach to the window for console debugging
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window.myDiagram2 = myDiagram2;
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</script>
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</body>
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</html> |