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| 1 | +// Copyright (c) Jupyter Development Team. |
| 2 | +// Distributed under the terms of the Modified BSD License. |
| 3 | + |
| 4 | +import { |
| 5 | + DOMWidgetView, |
| 6 | + unpack_models, |
| 7 | + ViewList, |
| 8 | + JupyterLuminoPanelWidget, |
| 9 | + reject, |
| 10 | + WidgetModel, |
| 11 | + WidgetView, |
| 12 | +} from '@jupyter-widgets/base'; |
| 13 | + |
| 14 | +import { CoreDOMWidgetModel } from './widget_core'; |
| 15 | + |
| 16 | +import { ArrayExt } from '@lumino/algorithm'; |
| 17 | + |
| 18 | +import { MessageLoop } from '@lumino/messaging'; |
| 19 | + |
| 20 | +import { Widget } from '@lumino/widgets'; |
| 21 | + |
| 22 | +import $ from 'jquery'; |
| 23 | + |
| 24 | +export class FieldsetModel extends CoreDOMWidgetModel { |
| 25 | + defaults(): Backbone.ObjectHash { |
| 26 | + return { |
| 27 | + ...super.defaults(), |
| 28 | + _view_name: 'FieldsetView', |
| 29 | + _model_name: 'FieldsetModel', |
| 30 | + children: [], |
| 31 | + box_style: '', |
| 32 | + }; |
| 33 | + } |
| 34 | + |
| 35 | + static serializers = { |
| 36 | + ...CoreDOMWidgetModel.serializers, |
| 37 | + children: { deserialize: unpack_models }, |
| 38 | + }; |
| 39 | +} |
| 40 | + |
| 41 | + |
| 42 | +export class FieldsetView extends DOMWidgetView { |
| 43 | + _createElement(tagName: string): HTMLElement { |
| 44 | + this.luminoWidget = new JupyterLuminoPanelWidget({ view: this }); |
| 45 | + return this.luminoWidget.node; |
| 46 | + } |
| 47 | + |
| 48 | + _setElement(el: HTMLElement): void { |
| 49 | + if (this.el || el !== this.luminoWidget.node) { |
| 50 | + // Boxes don't allow setting the element beyond the initial creation. |
| 51 | + throw new Error('Cannot reset the DOM element.'); |
| 52 | + } |
| 53 | + |
| 54 | + this.el = this.luminoWidget.node; |
| 55 | + this.$el = $(this.luminoWidget.node); |
| 56 | + } |
| 57 | + |
| 58 | + initialize(parameters: WidgetView.IInitializeParameters): void { |
| 59 | + super.initialize(parameters); |
| 60 | + this.children_views = new ViewList(this.add_child_model, null, this); |
| 61 | + this.listenTo(this.model, 'change:children', this.update_children); |
| 62 | + this.listenTo(this.model, 'change:fieldset_style', this.update_fieldset_style); |
| 63 | + |
| 64 | + this.luminoWidget.addClass('jupyter-widgets'); |
| 65 | + this.luminoWidget.addClass('widget-container'); |
| 66 | + } |
| 67 | + |
| 68 | + render(): void { |
| 69 | + super.render(); |
| 70 | + this.update_children(); |
| 71 | + this.set_fieldset_style(); |
| 72 | + } |
| 73 | + |
| 74 | + update_children(): void { |
| 75 | + this.children_views |
| 76 | + ?.update(this.model.get('children')) |
| 77 | + .then((views: DOMWidgetView[]) => { |
| 78 | + // Notify all children that their sizes may have changed. |
| 79 | + views.forEach((view) => { |
| 80 | + MessageLoop.postMessage( |
| 81 | + view.luminoWidget, |
| 82 | + Widget.ResizeMessage.UnknownSize |
| 83 | + ); |
| 84 | + }); |
| 85 | + }); |
| 86 | + } |
| 87 | + |
| 88 | + update_fieldset_style(): void { |
| 89 | + this.update_mapped_classes(FieldsetView.class_map, 'fieldset_style'); |
| 90 | + } |
| 91 | + |
| 92 | + set_fieldset_style(): void { |
| 93 | + this.set_mapped_classes(FieldsetView.class_map, 'fieldset_style'); |
| 94 | + } |
| 95 | + |
| 96 | + add_child_model(model: WidgetModel): Promise<DOMWidgetView> { |
| 97 | + // we insert a dummy element so the order is preserved when we add |
| 98 | + // the rendered content later. |
| 99 | + const dummy = new Widget(); |
| 100 | + this.luminoWidget.addWidget(dummy); |
| 101 | + |
| 102 | + return this.create_child_view(model) |
| 103 | + .then((view: DOMWidgetView) => { |
| 104 | + // replace the dummy widget with the new one. |
| 105 | + const i = ArrayExt.firstIndexOf(this.luminoWidget.widgets, dummy); |
| 106 | + this.luminoWidget.insertWidget(i, view.luminoWidget); |
| 107 | + dummy.dispose(); |
| 108 | + return view; |
| 109 | + }) |
| 110 | + .catch(reject('Could not add child view to fieldset', true)); |
| 111 | + } |
| 112 | + |
| 113 | + remove(): void { |
| 114 | + this.children_views = null; |
| 115 | + super.remove(); |
| 116 | + } |
| 117 | + |
| 118 | + children_views: ViewList<DOMWidgetView> | null; |
| 119 | + luminoWidget: JupyterLuminoPanelWidget; |
| 120 | + |
| 121 | + static class_map = { |
| 122 | + success: ['alert', 'alert-success'], |
| 123 | + info: ['alert', 'alert-info'], |
| 124 | + warning: ['alert', 'alert-warning'], |
| 125 | + danger: ['alert', 'alert-danger'], |
| 126 | + }; |
| 127 | +} |
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