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1 | 1 | import dom = require("dojo/dom-construct"); |
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2 | 2 | import { argumentNotNull } from "@implab/core-amd/safe"; |
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3 | 3 | import { RenditionBase } from "./RenditionBase"; |
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4 | import { DojoNodePosition, isInPage, isWidget } from "./traits"; | |
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4 | import { DojoNodePosition, isElementNode, isInPage, isWidget } from "./traits"; | |
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5 | 5 | import registry = require("dijit/registry"); |
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6 | 6 | import ContentPane = require("dijit/layout/ContentPane"); |
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7 | 7 | |
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8 | 8 | // tslint:disable-next-line: class-name |
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9 | 9 | export interface _Widget { |
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10 | 10 | domNode: Node; |
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11 | 11 | |
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12 | 12 | containerNode?: Node; |
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13 | 13 | |
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14 | 14 | placeAt?(refNode: string | Node, position?: DojoNodePosition): void; |
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15 | 15 | startup?(): void; |
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16 | 16 | |
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17 | 17 | addChild?(widget: any, index?: number): void; |
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18 | 18 | } |
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19 | 19 | |
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20 | 20 | export type _WidgetCtor = new (attrs: any, srcNode?: string | Node) => _Widget; |
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21 | 21 | |
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22 | 22 | export class WidgetRendition extends RenditionBase<Node> { |
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23 | 23 | readonly widgetClass: _WidgetCtor; |
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24 | 24 | |
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25 | 25 | _instance: _Widget | undefined; |
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26 | 26 | |
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27 | 27 | constructor(widgetClass: _WidgetCtor) { |
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28 | 28 | super(); |
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29 | 29 | argumentNotNull(widgetClass, "widgetClass"); |
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30 | 30 | |
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31 | 31 | this.widgetClass = widgetClass; |
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32 | 32 | } |
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33 | 33 | |
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34 | 34 | _addChild(child: any): void { |
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35 | 35 | const instance = this._getInstance(); |
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36 | 36 | |
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37 | 37 | if (instance.addChild) { |
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38 | 38 | if (child instanceof WidgetRendition) { |
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39 | 39 | // layout containers add custom logic to addChild methods |
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40 | 40 | instance.addChild(child.getWidgetInstance()); |
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41 | 41 | } else if (isWidget(child)) { |
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42 | 42 | instance.addChild(child); |
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43 | 43 | } else { |
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44 | const childDom = this.getItemDom(child); | |
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45 | const w = isElementNode(childDom) ? registry.byNode(childDom) : undefined; | |
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46 | ||
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47 | if (w) { | |
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48 | instance.addChild(w); | |
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49 | } else { | |
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44 | 50 | if (!instance.containerNode) |
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45 |
throw new Error("The widget doesn't have |
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51 | throw new Error("Failed to add DOM content. The widget doesn't have a containerNode"); | |
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46 | 52 | |
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47 | 53 | // the current widget isn't started, it's children shouldn't start too |
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48 | 54 | dom.place(this.getItemDom(child), instance.containerNode); |
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49 | 55 | } |
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56 | } | |
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50 | 57 | } else { |
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51 | 58 | if (!instance.containerNode) |
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52 | 59 | throw new Error("The widget doesn't have neither addChild nor containerNode"); |
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53 | 60 | |
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54 | 61 | // the current widget isn't started, it's children shouldn't start too |
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55 | 62 | dom.place(this.getItemDom(child), instance.containerNode); |
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56 | 63 | } |
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57 | 64 | } |
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58 | 65 | |
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59 | 66 | protected _create(attrs: any, children: any[]) { |
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60 | 67 | if (this.widgetClass.prototype instanceof ContentPane) { |
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61 | 68 | // a special case for the ContentPane this is for |
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62 | 69 | // the compatibility with this heavy widget, all |
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63 | 70 | // regular containers could be easily manipulated |
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64 | 71 | // through `containerNode` property or `addChild` method. |
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65 | 72 | |
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66 | 73 | // render children to the DocumentFragment |
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67 | 74 | const content = document.createDocumentFragment(); |
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68 | 75 | children.forEach(child => content.appendChild(this.getItemDom(child))); |
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69 | 76 | |
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70 | 77 | // set the content property to the parameters of the widget |
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71 | 78 | const _attrs = { ...attrs, content }; |
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72 | 79 | this._instance = new this.widgetClass(_attrs); |
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73 | 80 | } else { |
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74 | 81 | this._instance = new this.widgetClass(attrs); |
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75 | 82 | children.forEach(x => this._addChild(x)); |
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76 | 83 | } |
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77 | 84 | |
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78 | 85 | } |
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79 | 86 | |
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80 | 87 | private _getInstance() { |
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81 | 88 | if (!this._instance) |
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82 | 89 | throw new Error("The instance of the widget isn't created"); |
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83 | 90 | return this._instance; |
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84 | 91 | } |
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85 | 92 | |
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86 | 93 | protected _getDomNode() { |
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87 | 94 | if (!this._instance) |
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88 | 95 | throw new Error("The instance of the widget isn't created"); |
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89 | 96 | return this._instance.domNode; |
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90 | 97 | } |
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91 | 98 | |
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92 | 99 | /** Overrides default placeAt implementation. Calls placeAt of the |
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93 | 100 | * widget and then starts it. |
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94 | 101 | * |
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95 | 102 | * @param refNode A node or id of the node where the widget should be placed. |
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96 | 103 | * @param position A position relative to refNode. |
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97 | 104 | */ |
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98 | 105 | placeAt(refNode: string | Node, position?: DojoNodePosition) { |
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99 | 106 | this.ensureCreated(); |
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100 | 107 | const instance = this._getInstance(); |
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101 | 108 | if (typeof instance.placeAt === "function") { |
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102 | 109 | instance.placeAt(refNode, position); |
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103 | 110 | |
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104 | 111 | // fix the dojo startup behavior when the widget is placed |
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105 | 112 | // directly to the document and doesn't have any enclosing widgets |
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106 | 113 | const parentWidget = instance.domNode.parentNode ? |
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107 | 114 | registry.getEnclosingWidget(instance.domNode.parentNode) : null |
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108 | 115 | if (!parentWidget && isInPage(instance.domNode) && typeof instance.startup === "function") |
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109 | 116 | instance.startup(); |
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110 | 117 | } else { |
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111 | 118 | // the widget doesn't have a placeAt method, strange but whatever |
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112 | 119 | super.placeAt(refNode, position); |
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113 | 120 | } |
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114 | 121 | } |
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115 | 122 | |
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116 | 123 | getWidgetInstance() { |
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117 | 124 | this.ensureCreated(); |
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118 | 125 | return this._getInstance(); |
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119 | 126 | } |
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120 | 127 | |
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121 | 128 | } |
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