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1 | 1 | import { AbstractConstructor, djbase, djclass } from "../declare"; |
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2 | 2 | import _WidgetBase = require("dijit/_WidgetBase"); |
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3 | 3 | import _AttachMixin = require("dijit/_AttachMixin"); |
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4 | 4 | import { Rendition, isNode, startupWidgets } from "./traits"; |
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5 | 5 | import registry = require("dijit/registry"); |
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6 | 6 | |
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7 | 7 | // type Handle = dojo.Handle; |
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8 | 8 | |
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9 | 9 | export interface EventArgs { |
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10 | 10 | bubbles?: boolean; |
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11 | 11 | |
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12 | 12 | cancelable?: boolean; |
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13 | 13 | |
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14 | 14 | composed?: boolean; |
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15 | 15 | } |
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16 | 16 | |
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17 | 17 | export interface DjxWidgetBase<Attrs = {}, Events extends { [name in keyof Events]: Event } = {}> extends |
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18 | 18 | _WidgetBase<Events> { |
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19 | 19 | |
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20 | 20 | /** This property is declared only for type inference to work, it is never assigned |
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21 | 21 | * and should not be used. |
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22 | 22 | */ |
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23 | 23 | readonly _eventMap: Events & GlobalEventHandlersEventMap; |
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24 | 24 | } |
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25 | 25 | |
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26 | 26 | type _super = { |
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27 | 27 | startup(): void; |
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28 | 28 | } |
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29 | 29 | |
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30 | 30 | @djclass |
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31 | 31 | export abstract class DjxWidgetBase<Attrs = {}, Events = {}> extends djbase<_super, _AttachMixin>(_WidgetBase, _AttachMixin) { |
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32 | 32 | |
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33 | 33 | /** The list of pairs of event and method names. When the widget is created all methods from |
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34 | 34 | * this list will be connected to corresponding events. |
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35 | 35 | */ |
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36 | 36 | _eventHandlers: Array<{ |
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37 | 37 | eventName: string, |
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38 | 38 | handlerMethod: keyof any; |
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39 | 39 | }> = []; |
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40 | 40 | |
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41 | 41 | buildRendering() { |
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42 | 42 | this.domNode = this.render().getDomNode(); |
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43 | 43 | super.buildRendering(); |
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44 | 44 | |
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45 | 45 | // now we should get assigned data-dojo-attach-points |
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46 | 46 | // place the contents of the original srcNode to the containerNode |
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47 | 47 | const src = this.srcNodeRef; |
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48 | 48 | const dest = this.containerNode; |
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49 | 49 | |
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50 | 50 | // the donNode is constructed now we need to connect event handlers |
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51 | 51 | this._connectEventHandlers(); |
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52 | 52 | |
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53 | 53 | if (src && dest) { |
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54 | 54 | while (src.firstChild) |
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55 | 55 | dest.appendChild(src.firstChild); |
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56 | 56 | } |
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57 | 57 | } |
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58 | 58 | |
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59 | 59 | abstract render(): Rendition<HTMLElement>; |
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60 | 60 | |
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61 | 61 | private _connectEventHandlers() { |
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62 | 62 | this._eventHandlers.forEach(({eventName, handlerMethod}) => { |
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63 | 63 | const handler = this[handlerMethod as keyof this]; |
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64 | 64 | if (typeof handler === "function") |
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65 | this.on(eventName, handler); | |
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65 | this.on(eventName, handler.bind(this)); | |
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66 | 66 | }); |
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67 | 67 | } |
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68 | 68 | |
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69 | 69 | _processTemplateNode<T extends (Element | Node | _WidgetBase)>( |
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70 | 70 | baseNode: T, |
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71 | 71 | getAttrFunc: (baseNode: T, attr: string) => any, |
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72 | 72 | // tslint:disable-next-line: ban-types |
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73 | 73 | attachFunc: (node: T, type: string, func?: Function) => dojo.Handle |
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74 | 74 | ): boolean { |
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75 | 75 | if (isNode(baseNode)) { |
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76 | 76 | const w = registry.byNode(baseNode); |
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77 | 77 | if (w) { |
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78 | 78 | // from dijit/_WidgetsInTemplateMixin |
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79 | 79 | this._processTemplateNode(w, |
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80 | 80 | (n, p) => n.get(p as any), // callback to get a property of a widget |
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81 | 81 | (widget, type, callback) => { |
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82 | 82 | if (!callback) |
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83 | 83 | throw new Error("The callback must be specified"); |
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84 | 84 | |
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85 | 85 | // callback to do data-dojo-attach-event to a widget |
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86 | 86 | if (type in widget) { |
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87 | 87 | // back-compat, remove for 2.0 |
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88 | 88 | return widget.connect(widget, type, callback as EventListener); |
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89 | 89 | } else { |
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90 | 90 | // 1.x may never hit this branch, but it's the default for 2.0 |
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91 | 91 | return widget.on(type, callback); |
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92 | 92 | } |
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93 | 93 | |
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94 | 94 | }); |
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95 | 95 | // don't process widgets internals |
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96 | 96 | return false; |
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97 | 97 | } |
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98 | 98 | } |
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99 | 99 | return super._processTemplateNode(baseNode, getAttrFunc, attachFunc); |
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100 | 100 | } |
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101 | 101 | |
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102 | 102 | /** Starts current widget and all its supporting widgets (placed outside |
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103 | 103 | * `containerNode`) and child widgets (placed inside `containerNode`) |
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104 | 104 | */ |
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105 | 105 | startup() { |
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106 | 106 | // startup supporting widgets |
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107 | 107 | registry.findWidgets(this.domNode, this.containerNode).forEach(w => w.startup()); |
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108 | 108 | super.startup(); |
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109 | 109 | } |
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110 | 110 | } |
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