private buildDom()

in sim/visuals/microbit.ts [921:1069]


        private buildDom() {
            this.domHardwareVersion = 1;
            this.element = <SVGSVGElement>svg.elt("svg")
            svg.hydrate(this.element, {
                "version": "1.0",
                "viewBox": `0 0 ${MB_WIDTH} ${MB_HEIGHT}`,
                "class": "sim",
                "x": "0px",
                "y": "0px",
                "width": MB_WIDTH + "px",
                "height": MB_HEIGHT + "px",
                "fill": "rgba(0,0,0,0)"
            });
            this.style = <SVGStyleElement>svg.child(this.element, "style", {});
            this.style.textContent = MB_STYLE + (this.props.theme.highContrast ? MB_HIGHCONTRAST : "");

            this.defs = <SVGDefsElement>svg.child(this.element, "defs", {});
            this.g = <SVGGElement>svg.elt("g");
            this.element.appendChild(this.g);

            // filters
            let ledglow = svg.child(this.defs, "filter", { id: "ledglow", x: "-75%", y: "-75%", width: "300%", height: "300%" });
            svg.child(ledglow, "feMorphology", { operator: "dilate", radius: "4", in: "SourceAlpha", result: "thicken" });
            svg.child(ledglow, "feGaussianBlur", { stdDeviation: "5", in: "thicken", result: "blurred" });
            svg.child(ledglow, "feFlood", { "flood-color": "rgb(255, 17, 77)", result: "glowColor" });
            svg.child(ledglow, "feComposite", { in: "glowColor", in2: "blurred", operator: "in", result: "ledglow_colored" });
            let ledglowMerge = svg.child(ledglow, "feMerge", {});
            svg.child(ledglowMerge, "feMergeNode", { in: "ledglow_colored" });
            svg.child(ledglowMerge, "feMergeNode", { in: "SourceGraphic" });

            let glow = svg.child(this.defs, "filter", { id: "filterglow", x: "-5%", y: "-5%", width: "120%", height: "120%" });
            svg.child(glow, "feGaussianBlur", { stdDeviation: "5", result: "glow" });
            let merge = svg.child(glow, "feMerge", {});
            for (let i = 0; i < 3; ++i) svg.child(merge, "feMergeNode", { in: "glow" })

            // outline
            this.pkg = svg.path(this.g, "sim-board", "M498,31.9C498,14.3,483.7,0,466.1,0H31.9C14.3,0,0,14.3,0,31.9v342.2C0,391.7,14.3,406,31.9,406h434.2c17.6,0,31.9-14.3,31.9-31.9V31.9z M14.3,206.7c-2.7,0-4.8-2.2-4.8-4.8c0-2.7,2.2-4.8,4.8-4.8c2.7,0,4.8,2.2,4.8,4.8C19.2,204.6,17,206.7,14.3,206.7z M486.2,206.7c-2.7,0-4.8-2.2-4.8-4.8c0-2.72.2-4.8,4.8-4.8c2.7,0,4.8,2.2,4.8,4.8C491,204.6,488.8,206.7,486.2,206.7z");
            svg.hydrate(this.pkg, { fill: "#111" });

            // script background
            this.display = svg.path(this.g, "sim-display", "M333.8,310.3H165.9c-8.3,0-15-6.7-15-15V127.5c0-8.3,6.7-15,15-15h167.8c8.3,0,15,6.7,15,15v167.8C348.8,303.6,342.1,310.3,333.8,310.3z");
            svg.hydrate(this.display, { fill: "#111" });

            this.logos = [];
            this.logos.push(svg.child(this.g, "polygon", { class: "sim-theme", points: "115,56.7 173.1,0 115,0" }));
            this.logos.push(svg.path(this.g, "sim-theme", "M114.2,0H25.9C12.1,2.1,0,13.3,0,27.7v83.9L114.2,0z"));
            this.logos.push(svg.child(this.g, "polygon", { class: "sim-theme", points: "173,27.9 202.5,0 173,0" }));
            this.logos.push(svg.child(this.g, "polygon", { class: "sim-theme", points: "54.1,242.4 54.1,274.1 22.4,274.1" }));
            this.logos.push(svg.child(this.g, "polygon", { class: "sim-theme", points: "446.2,164.6 446.2,132.8 477.9,132.8" }));

            // leds
            this.leds = [];
            this.ledsOuter = [];
            let left = 154, top = 113, ledoffw = 46, ledoffh = 44;
            for (let i = 0; i < 5; ++i) {
                let ledtop = i * ledoffh + top;
                for (let j = 0; j < 5; ++j) {
                    let ledleft = j * ledoffw + left;
                    let k = i * 5 + j;
                    this.ledsOuter.push(svg.child(this.g, "rect", { class: "sim-led-back", x: ledleft, y: ledtop, width: 10, height: 20, rx: 2, ry: 2 }));
                    let led = svg.child(this.g, "rect", { class: "sim-led", x: ledleft - 2, y: ledtop - 2, width: 14, height: 24, rx: 3, ry: 3, title: `(${j},${i})` });
                    svg.filter(led, `url(#ledglow)`)
                    this.leds.push(led);
                }
            }

            // head
            this.head = <SVGGElement>svg.child(this.g, "g", { class: "sim-head" });
            svg.child(this.head, "circle", { cx: 258, cy: 75, r: 100, fill: "transparent" })
            this.headParts = <SVGGElement>svg.child(this.head, "g", { class: "sim-button-outer sim-button-group" });
            this.heads = []
            // background
            this.heads.push(svg.path(this.headParts, "sim-button", "M 269.9 50.2 L 269.9 50.2 l -39.5 0 v 0 c -14.1 0.1 -24.6 10.7 -24.6 24.8 c 0 13.9 10.4 24.4 24.3 24.7 v 0 h 39.6 c 14.2 0 24.8 -10.6 24.8 -24.7 C 294.5 61 284 50.3 269.9 50.2 M 269.7 89.2"));
            // shapes
            this.heads.push(svg.path(this.headParts, "sim-theme", "M269.9,50.2L269.9,50.2l-39.5,0v0c-14.1,0.1-24.6,10.7-24.6,24.8c0,13.9,10.4,24.4,24.3,24.7v0h39.6c14.2,0,24.8-10.6,24.8-24.7C294.5,61,284,50.3,269.9,50.2 M269.7,89.2L269.7,89.2l-39.3,0c-7.7-0.1-14-6.4-14-14.2c0-7.8,6.4-14.2,14.2-14.2h39.1c7.8,0,14.2,6.4,14.2,14.2C283.9,82.9,277.5,89.2,269.7,89.2"));
            this.heads.push(svg.path(this.headParts, "sim-theme", "M230.6,69.7c-2.9,0-5.3,2.4-5.3,5.3c0,2.9,2.4,5.3,5.3,5.3c2.9,0,5.3-2.4,5.3-5.3C235.9,72.1,233.5,69.7,230.6,69.7"));
            this.heads.push(svg.path(this.headParts, "sim-theme", "M269.7,80.3c2.9,0,5.3-2.4,5.3-5.3c0-2.9-2.4-5.3-5.3-5.3c-2.9,0-5.3,2.4-5.3,5.3C264.4,77.9,266.8,80.3,269.7,80.3"));
            this.headText = <SVGTextElement>svg.child(this.g, "text", { x: 160, y: 60, class: "sim-text" })

            // https://www.microbit.co.uk/device/pins
            // P0, P1, P2
            this.pins = [
                "M16.5,341.2c0,0.4-0.1,0.9-0.1,1.3v60.7c4.1,1.7,8.6,2.7,12.9,2.7h34.4v-64.7c0,0,0-0.1,0-0.1c0-13-10.6-23.6-23.7-23.6C27.2,317.6,16.5,328.1,16.5,341.2z M21.2,341.6c0-10.7,8.7-19.3,19.3-19.3c10.7,0,19.3,8.7,19.3,19.3c0,10.7-8.6,19.3-19.3,19.3C29.9,360.9,21.2,352.2,21.2,341.6z",
                "M139.1,317.3c-12.8,0-22.1,10.3-23.1,23.1V406h46.2v-65.6C162.2,327.7,151.9,317.3,139.1,317.3zM139.3,360.1c-10.7,0-19.3-8.6-19.3-19.3c0-10.7,8.6-19.3,19.3-19.3c10.7,0,19.3,8.7,19.3,19.3C158.6,351.5,150,360.1,139.3,360.1z",
                "M249,317.3c-12.8,0-22.1,10.3-23.1,23.1V406h46.2v-65.6C272.1,327.7,261.8,317.3,249,317.3z M249.4,360.1c-10.7,0-19.3-8.6-19.3-19.3c0-10.7,8.6-19.3,19.3-19.3c10.7,0,19.3,8.7,19.3,19.3C268.7,351.5,260.1,360.1,249.4,360.1z"
            ].map((p, pi) => svg.path(this.g, "sim-pin sim-pin-touch", p));

            // P3
            this.pins.push(svg.path(this.g, "sim-pin", "M0,357.7v19.2c0,10.8,6.2,20.2,14.4,25.2v-44.4H0z"));

            pins4onXs.forEach(x => {
                this.pins.push(svg.child(this.g, "rect", { x: x, y: 356.7, width: 10, height: 50, class: "sim-pin" }));
            })
            this.pins.push(svg.path(this.g, "sim-pin", "M483.6,402c8.2-5,14.4-14.4,14.4-25.1v-19.2h-14.4V402z"));
            this.pins.push(svg.path(this.g, "sim-pin", "M359.9,317.3c-12.8,0-22.1,10.3-23.1,23.1V406H383v-65.6C383,327.7,372.7,317.3,359.9,317.3z M360,360.1c-10.7,0-19.3-8.6-19.3-19.3c0-10.7,8.6-19.3,19.3-19.3c10.7,0,19.3,8.7,19.3,19.3C379.3,351.5,370.7,360.1,360,360.1z"));
            this.pins.push(svg.path(this.g, "sim-pin", "M458,317.6c-13,0-23.6,10.6-23.6,23.6c0,0,0,0.1,0,0.1h0V406H469c4.3,0,8.4-1,12.6-2.7v-60.7c0-0.4,0-0.9,0-1.3C481.6,328.1,471,317.6,458,317.6z M457.8,360.9c-10.7,0-19.3-8.6-19.3-19.3c0-10.7,8.6-19.3,19.3-19.3c10.7,0,19.3,8.7,19.3,19.3C477.1,352.2,468.4,360.9,457.8,360.9z"));

            this.pins.forEach((p, i) => svg.hydrate(p, { title: pinTitles[i] }));

            this.pinGradients = this.pins.map((pin, i) => {
                let gid = "gradient-pin-" + i
                let lg = svg.linearGradient(this.defs, gid)
                pin.setAttribute("fill", `url(#${gid})`);
                return lg;
            })

            this.pinTexts = [67, 165, 275].map(x => <SVGTextElement>svg.child(this.g, "text", { class: "sim-text-pin", x: x, y: 345 }));

            this.buttonsOuter = []; this.buttons = [];

            const outerBtn = (left: number, top: number, label: string) => {
                const btnr = 4;
                const btnw = 56.2;
                const btnn = 6;
                const btnnm = 10
                let btng = svg.child(this.g, "g", { class: "sim-button-group" });
                accessibility.makeFocusable(btng);
                accessibility.setAria(btng, "button", label);
                this.buttonsOuter.push(btng);
                svg.child(btng, "rect", { class: "sim-button-outer", x: left, y: top, rx: btnr, ry: btnr, width: btnw, height: btnw });
                svg.child(btng, "circle", { class: "sim-button-nut", cx: left + btnnm, cy: top + btnnm, r: btnn });
                svg.child(btng, "circle", { class: "sim-button-nut", cx: left + btnnm, cy: top + btnw - btnnm, r: btnn });
                svg.child(btng, "circle", { class: "sim-button-nut", cx: left + btnw - btnnm, cy: top + btnw - btnnm, r: btnn });
                svg.child(btng, "circle", { class: "sim-button-nut", cx: left + btnw - btnnm, cy: top + btnnm, r: btnn });
            }

            outerBtn(25.9, 176.4, "A");
            this.buttons.push(svg.path(this.g, "sim-button", "M69.7,203.5c0,8.7-7,15.7-15.7,15.7s-15.7-7-15.7-15.7c0-8.7,7-15.7,15.7-15.7S69.7,194.9,69.7,203.5"));
            outerBtn(418.1, 176.4, "B");
            this.buttons.push(svg.path(this.g, "sim-button", "M461.9,203.5c0,8.7-7,15.7-15.7,15.7c-8.7,0-15.7-7-15.7-15.7c0-8.7,7-15.7,15.7-15.7C454.9,187.8,461.9,194.9,461.9,203.5"));
            outerBtn(417, 250, "A+B");
            this.buttons.push(svg.child(this.g, "circle", { class: "sim-button", cx: 446, cy: 278, r: 16.5 }));
            (<any>this.buttonsOuter[2]).style.visibility = "hidden";
            (<any>this.buttons[2]).style.visibility = "hidden";
            this.buttons.forEach(btn => svg.hydrate(btn, { fill: "#111" }));

            svg.path(this.g, "sim-label", "M35.7,376.4c0-2.8,2.1-5.1,5.5-5.1c3.3,0,5.5,2.4,5.5,5.1v4.7c0,2.8-2.2,5.1-5.5,5.1c-3.3,0-5.5-2.4-5.5-5.1V376.4zM43.3,376.4c0-1.3-0.8-2.3-2.2-2.3c-1.3,0-2.1,1.1-2.1,2.3v4.7c0,1.2,0.8,2.3,2.1,2.3c1.3,0,2.2-1.1,2.2-2.3V376.4z");
            svg.path(this.g, "sim-label", "M136.2,374.1c2.8,0,3.4-0.8,3.4-2.5h2.9v14.3h-3.4v-9.5h-3V374.1z");
            svg.path(this.g, "sim-label", "M248.6,378.5c1.7-1,3-1.7,3-3.1c0-1.1-0.7-1.6-1.6-1.6c-1,0-1.8,0.6-1.8,2.1h-3.3c0-2.6,1.8-4.6,5.1-4.6c2.6,0,4.9,1.3,4.9,4.3c0,2.4-2.3,3.9-3.8,4.7c-2,1.3-2.5,1.8-2.5,2.9h6.1v2.7h-10C244.8,381.2,246.4,379.9,248.6,378.5z");

            svg.path(this.g, "sim-button-label", "M48.1,270.9l-0.6-1.7h-5.1l-0.6,1.7h-3.5l5.1-14.3h3.1l5.2,14.3H48.1z M45,260.7l-1.8,5.9h3.5L45,260.7z");
            svg.path(this.g, "sim-button-label", "M449.1,135.8h5.9c3.9,0,4.7,2.4,4.7,3.9c0,1.8-1.4,2.9-2.5,3.2c0.9,0,2.6,1.1,2.6,3.3c0,1.5-0.8,4-4.7,4h-6V135.8zM454.4,141.7c1.6,0,2-1,2-1.7c0-0.6-0.3-1.7-2-1.7h-2v3.4H454.4z M452.4,144.1v3.5h2.1c1.6,0,2-1,2-1.8c0-0.7-0.4-1.8-2-1.8H452.4z")

            svg.path(this.g, "sim-label", "M352.1,381.1c0,1.6,0.9,2.5,2.2,2.5c1.2,0,1.9-0.9,1.9-1.9c0-1.2-0.6-2-2.1-2h-1.3v-2.6h1.3c1.5,0,1.9-0.7,1.9-1.8c0-1.1-0.7-1.6-1.6-1.6c-1.4,0-1.8,0.8-1.8,2.1h-3.3c0-2.4,1.5-4.6,5.1-4.6c2.6,0,5,1.3,5,4c0,1.6-1,2.8-2.1,3.2c1.3,0.5,2.3,1.6,2.3,3.5c0,2.7-2.4,4.3-5.2,4.3c-3.5,0-5.5-2.1-5.5-5.1H352.1z")
            svg.path(this.g, "sim-label", "M368.5,385.9h-3.1l-5.1-14.3h3.5l3.1,10.1l3.1-10.1h3.6L368.5,385.9z")
            svg.path(this.g, "sim-label", "M444.4,378.3h7.4v2.5h-1.5c-0.6,3.3-3,5.5-7.1,5.5c-4.8,0-7.5-3.5-7.5-7.5c0-3.9,2.8-7.5,7.5-7.5c3.8,0,6.4,2.3,6.6,5h-3.5c-0.2-1.1-1.4-2.2-3.1-2.2c-2.7,0-4.1,2.3-4.1,4.7c0,2.5,1.4,4.7,4.4,4.7c2,0,3.2-1.2,3.4-2.7h-2.5V378.3z")
            svg.path(this.g, "sim-label", "M461.4,380.9v-9.3h3.3v14.3h-3.5l-5.2-9.2v9.2h-3.3v-14.3h3.5L461.4,380.9z")
            svg.path(this.g, "sim-label", "M472.7,371.6c4.8,0,7.5,3.5,7.5,7.2s-2.7,7.2-7.5,7.2h-5.3v-14.3H472.7z M470.8,374.4v8.6h1.8c2.7,0,4.2-2.1,4.2-4.3s-1.6-4.3-4.2-4.3H470.8z")
        }