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annotate web/light9-color-picker.ts @ 2381:3a2e58725037

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make bin/* match
author drewp@bigasterisk.com
date Sun, 12 May 2024 19:56:25 -0700
parents 4556eebe5d73
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import debug from "debug";
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2 import { css, html, LitElement, PropertyValueMap } from "lit";
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3 import { customElement, property, queryAsync, state } from "lit/decorators.js";
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4 import color from "onecolor";
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5 import { ClientCoord, pickerFloat } from "./floating_color_picker";
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6 export { Slider } from "@material/mwc-slider";
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7
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8 const log = debug("control.color");
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9 type int8 = number;
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10
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11 @customElement("light9-color-picker")
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12 export class Light9ColorPicker extends LitElement {
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13 static styles = [
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14 css`
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15 :host {
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16 position: relative;
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17 display: flex;
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18 align-items: center;
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19 flex-wrap: wrap;
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20 user-select: none;
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21 }
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22
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23 #swatch {
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24 display: inline-block;
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25 width: 50px;
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26 height: 30px;
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27 margin-right: 3px;
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28 border: 1px solid #333;
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29 }
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30
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31 mwc-slider {
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32 width: 160px;
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33 }
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34
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35 #vee {
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36 display: flex;
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37 align-items: center;
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38 }
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39 `,
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40 ];
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41 render() {
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42 return html`
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43 <div id="swatch" style="background-color: ${this.color}; border-color: ${this.hueSatColor}" @mousedown=${this.startFloatingPick}></div>
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44 <span id="vee"> V: <mwc-slider id="value" .value=${this.value} step="1" min="0" max="255" @input=${this.onVSliderChange}></mwc-slider> </span>
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45 `;
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46 }
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47
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48 // Selected color. Read/write. Equal to value*hueSatColor. Never null.
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49 @property() color: string = "#000";
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50
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51 @state() hueSatColor: string = "#fff"; // always full value
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52 @state() value: int8 = 0;
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53
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54 @queryAsync("#swatch") swatchEl!: Promise<HTMLElement>;
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55
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56 connectedCallback(): void {
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57 super.connectedCallback();
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58 pickerFloat.pageInit();
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59 }
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60 update(changedProperties: PropertyValueMap<this>) {
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61 super.update(changedProperties);
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62 if (changedProperties.has("color")) {
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63 this.setColor(this.color);
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64 }
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65 if (changedProperties.has("value") || changedProperties.has("hueSatColor")) {
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66 this.updateColorFromHSV();
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67
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68 this.dispatchEvent(new CustomEvent("input", { detail: { value: this.color } }));
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69
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70 this.swatchEl.then((sw) => {
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71 sw.style.borderColor = this.hueSatColor;
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72 });
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73 }
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74 }
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75
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76 private updateColorFromHSV() {
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77 this.color = color(this.hueSatColor)
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78 .value(this.value / 255)
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79 .hex();
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80 }
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81
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82 private onVSliderChange(ev: CustomEvent) {
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83 this.value = ev.detail.value;
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84 }
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85
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86 // for outside users of the component
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87 setColor(col: string) {
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88 if (col === null) throw new Error("col===null");
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89 if (typeof col !== "string") throw new Error("typeof col=" + typeof col);
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90 this.value = color(col).value() * 255;
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91
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92 // don't update this if only the value changed, or we desaturate
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93 this.hueSatColor = color(col).value(1).hex();
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94 }
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95
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96 private startFloatingPick(ev: MouseEvent) {
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97 if (this.value < (20 as int8)) {
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98 log("boost");
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99 this.value = 255 as int8;
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100 this.updateColorFromHSV();
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101 }
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102 pickerFloat.startPick(new ClientCoord(ev.clientX, ev.clientY), this.color, (hsc: string) => {
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103 this.hueSatColor = hsc;
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104 });
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105 }
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106 }