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An Old ESRI Widget Hello World Sample
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| /// <amd-dependency path="esri/core/tsSupport/declareExtendsHelper" name="__extends" /> | |
| /// <amd-dependency path="esri/core/tsSupport/decorateHelper" name="__decorate" /> | |
| import { subclass, declared, property } from "esri/core/accessorSupport/decorators"; | |
| import Widget from "esri/widgets/Widget"; | |
| import { renderable, tsx } from "esri/widgets/support/widget"; | |
| tsx; // Reference tsx here, this will be used after compilation to JavaScript | |
| const CSS = { | |
| base: "esri-hello-world", | |
| emphasis: "esri-hello-world--emphasis" | |
| }; | |
| @subclass("esri.widgets.HelloWorld") | |
| class HelloWorld extends declared(Widget) { | |
| //---------------------------------- | |
| // firstName | |
| //---------------------------------- | |
| @property() | |
| @renderable() | |
| firstName: string = "John"; | |
| //---------------------------------- | |
| // lastName | |
| //---------------------------------- | |
| @property() | |
| @renderable() | |
| lastName: string = "Smith"; | |
| //---------------------------------- | |
| // emphasized | |
| //---------------------------------- | |
| @property() | |
| @renderable() | |
| emphasized: boolean = false; | |
| // Public method | |
| render() { | |
| const greeting = this._getGreeting(); | |
| const classes = { | |
| [CSS.emphasis]: this.emphasized | |
| }; | |
| return ( | |
| <div class={this.classes(CSS.base, classes)}> | |
| <p></p> | |
| {greeting} | |
| </div> | |
| ); | |
| } | |
| // Private method | |
| private _getGreeting(): string { | |
| return `Hello, my name is ${this.firstName} ${this.lastName}!`; | |
| } | |
| } | |
| export = HelloWorld; |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /> | |
| <title>Create a custom widget - 4.11</title> | |
| <style> | |
| .esri-hello-world { | |
| font-family: "Helvetica Neue", sans-serif; | |
| display: inline-block; | |
| } | |
| .esri-hello-world--emphasis { | |
| font-weight: bold; | |
| } | |
| </style> | |
| <script> | |
| var locationPath = location.pathname.replace(/\/[^\/]+$/, ""); | |
| window.dojoConfig = { | |
| packages: [ | |
| { | |
| name: "app", | |
| location: locationPath + "/app" | |
| } | |
| ] | |
| }; | |
| </script> | |
| <script src="https://js.arcgis.com/4.11/"></script> | |
| <script> | |
| var widget; | |
| require(["app/HelloWorld"], function(HelloWorld) { | |
| var names = [ | |
| { | |
| firstName: "John", | |
| lastName: "Smith" | |
| }, | |
| { | |
| firstName: "Jackie", | |
| lastName: "Miller" | |
| }, | |
| { | |
| firstName: "Anna", | |
| lastName: "Price" | |
| } | |
| ], | |
| nameIndex = 0; | |
| var widget = new HelloWorld({ | |
| firstName: names[nameIndex].firstName, | |
| lastName: names[nameIndex].lastName, | |
| container: "widgetDiv" | |
| }); | |
| function changeName() { | |
| widget.set(names[++nameIndex % names.length]); | |
| } | |
| widget.on("greeted", function(event) { | |
| console.log(event); | |
| }); | |
| setInterval(changeName, 1000); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="widgetDiv"></div> | |
| </body> | |
| </html> |
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