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annotate src/streamed-graph.ts @ 3:a7ba8627a7b6

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still trying to make imports work. add other files too
author drewp@bigasterisk.com
date Wed, 04 Dec 2019 00:09:15 -0800
parents
children a668a774b162
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1
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2 // these are just for timebank- move them out
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3 import '@polymer/polymer/lib/elements/dom-bind.js';
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5
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6 import { PolymerElement, html } from '@polymer/polymer';
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7 import { customElement, property, computed } from '@polymer/decorators';
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8 import { render } from 'lit-html';
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9 // import { graphView } from '/rdf/browse/graphView.js';
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10 import { StreamedGraphClient } from './streamed_graph_client';
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11
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12 @customElement('streamed-graph')
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13 class StreamedGraph extends PolymerElement {
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14 @property({ type: String })
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15 url: string = '';
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16
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17 @property({ type: Object })
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18 graph: Object;
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19
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20 @property({ type: Boolean })
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21 expanded: Boolean = false;
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22
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23 @computed('expanded')
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24 get expandAction() {
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25 return this.expanded ? '-' : '+';
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26 }
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27
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28 @property({ type: String })
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29 status: String = '';
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30
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31 sg: StreamedGraphClient;
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32 graphView: Element;
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33 graphViewDirty = true;
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34
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35 static get template() {
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36 return html`
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37 <link rel="stylesheet" href="../src/streamed-graph.css">
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38 <div id="ui">
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39 <span class="expander"><button on-click="toggleExpand">{{expandAction}}</button></span>
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40 StreamedGraph <a href="{{url}}">[source]</a>:
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41 {{status}}
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42 </div>
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43 <div id="graphView">graph here
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44 </div>`;
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45 }
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46
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47 ready() {
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48 super.ready();
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49 this.graphView = this.shadowRoot.getElementById("graphView");
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50 }
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51
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52 toggleExpand(ev) {
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53 this.expanded = !this.expanded;
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54 if (this.expanded) {
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55 this.redrawGraph()
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56 } else {
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57 this.graphViewDirty = false;
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58 render(null, this.graphView);
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59 }
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60 }
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61
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62 redrawGraph() {
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63 this.graphViewDirty = true;
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64 requestAnimationFrame(this._redrawLater.bind(this));
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65 }
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66
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67 _onUrl(url) {
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68 // if (this.sg) { this.sg.close(); }
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69 this.sg = new StreamedGraphClient(
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70 url,
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71 this.onGraphChanged.bind(this),
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72 this.set.bind(this, 'status'),
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73 [],//window.NS,
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74 []);
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75 }
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76
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77 onGraphChanged() {
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78 //this.graph = { version: this.graph.version + 1, graph: this.sg };
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79 if (this.expanded) {
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80 this.redrawGraph();
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81 }
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82 }
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83
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84 _redrawLater() {
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85 if (!this.graphViewDirty) return;
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86 //render(graphView(this.graph.graph), this.graphView);
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87 this.graphViewDirty = false;
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88 }
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89
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90
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91 }