JeuPistesSarreguemines/require/js/qr-scanner/qr-scanner.min.js

651 lines
22 KiB
JavaScript
Raw Permalink Normal View History

2023-06-27 14:31:55 +02:00
class e {
2023-06-28 17:41:57 +02:00
constructor(a, b, c, d, f) {
this._legacyCanvasSize = e.DEFAULT_CANVAS_SIZE;
this._preferredCamera = "environment";
this._maxScansPerSecond = 25;
this._lastScanTimestamp = -1;
this._destroyed = this._flashOn = this._paused = this._active = !1;
this.$video = a;
this.$canvas = document.createElement("canvas");
c && "object" === typeof c
? (this._onDecode = b)
: (c || d || f
? console.warn(
"You're using a deprecated version of the QrScanner constructor which will be removed in the future"
)
: console.warn(
"Note that the type of the scan result passed to onDecode will change in the future. To already switch to the new api today, you can pass returnDetailedScanResult: true."
),
(this._legacyOnDecode = b));
b = "object" === typeof c ? c : {};
this._onDecodeError =
b.onDecodeError || ("function" === typeof c ? c : this._onDecodeError);
this._calculateScanRegion =
b.calculateScanRegion ||
("function" === typeof d ? d : this._calculateScanRegion);
this._preferredCamera = b.preferredCamera || f || this._preferredCamera;
this._legacyCanvasSize =
"number" === typeof c
? c
: "number" === typeof d
? d
: this._legacyCanvasSize;
this._maxScansPerSecond = b.maxScansPerSecond || this._maxScansPerSecond;
this._onPlay = this._onPlay.bind(this);
this._onLoadedMetaData = this._onLoadedMetaData.bind(this);
this._onVisibilityChange = this._onVisibilityChange.bind(this);
this._updateOverlay = this._updateOverlay.bind(this);
a.disablePictureInPicture = !0;
a.playsInline = !0;
a.muted = !0;
let h = !1;
a.hidden && ((a.hidden = !1), (h = !0));
document.body.contains(a) || (document.body.appendChild(a), (h = !0));
c = a.parentElement;
if (b.highlightScanRegion || b.highlightCodeOutline) {
d = !!b.overlay;
this.$overlay = b.overlay || document.createElement("div");
f = this.$overlay.style;
f.position = "absolute";
f.display = "none";
f.pointerEvents = "none";
this.$overlay.classList.add("scan-region-highlight");
if (!d && b.highlightScanRegion) {
this.$overlay.innerHTML =
'<svg class="scan-region-highlight-svg" viewBox="0 0 238 238" preserveAspectRatio="none" style="position:absolute;width:100%;height:100%;left:0;top:0;fill:none;stroke:#e9b213;stroke-width:4;stroke-linecap:round;stroke-linejoin:round"><path d="M31 2H10a8 8 0 0 0-8 8v21M207 2h21a8 8 0 0 1 8 8v21m0 176v21a8 8 0 0 1-8 8h-21m-176 0H10a8 8 0 0 1-8-8v-21"/></svg>';
try {
this.$overlay.firstElementChild.animate(
{
transform: ["scale(.98)", "scale(1.01)"],
},
{
duration: 400,
iterations: Infinity,
direction: "alternate",
easing: "ease-in-out",
}
);
} catch (m) {}
c.insertBefore(this.$overlay, this.$video.nextSibling);
}
b.highlightCodeOutline &&
(this.$overlay.insertAdjacentHTML(
"beforeend",
'<svg class="code-outline-highlight" preserveAspectRatio="none" style="display:none;width:100%;height:100%;fill:none;stroke:#e9b213;stroke-width:5;stroke-dasharray:25;stroke-linecap:round;stroke-linejoin:round"><polygon/></svg>'
),
(this.$codeOutlineHighlight = this.$overlay.lastElementChild));
}
this._scanRegion = this._calculateScanRegion(a);
requestAnimationFrame(() => {
let m = window.getComputedStyle(a);
"none" === m.display &&
(a.style.setProperty("display", "block", "important"), (h = !0));
"visible" !== m.visibility &&
(a.style.setProperty("visibility", "visible", "important"), (h = !0));
h &&
(console.warn(
"QrScanner has overwritten the video hiding style to avoid Safari stopping the playback."
),
(a.style.opacity = "0"),
(a.style.width = "0"),
(a.style.height = "0"),
this.$overlay &&
this.$overlay.parentElement &&
this.$overlay.parentElement.removeChild(this.$overlay),
delete this.$overlay,
delete this.$codeOutlineHighlight);
this.$overlay && this._updateOverlay();
});
a.addEventListener("play", this._onPlay);
a.addEventListener("loadedmetadata", this._onLoadedMetaData);
document.addEventListener("visibilitychange", this._onVisibilityChange);
window.addEventListener("resize", this._updateOverlay);
this._qrEnginePromise = e.createQrEngine();
}
static set WORKER_PATH(a) {
console.warn(
"Setting QrScanner.WORKER_PATH is not required and not supported anymore. Have a look at the README for new setup instructions."
);
}
static async hasCamera() {
try {
return !!(await e.listCameras(!1)).length;
} catch (a) {
return !1;
}
}
static async listCameras(a = !1) {
if (!navigator.mediaDevices) return [];
let b = async () =>
(await navigator.mediaDevices.enumerateDevices()).filter(
(d) => "videoinput" === d.kind
),
c;
try {
a &&
(await b()).every((d) => !d.label) &&
(c = await navigator.mediaDevices.getUserMedia({
audio: !1,
video: !0,
}));
} catch (d) {}
try {
return (await b()).map((d, f) => ({
id: d.deviceId,
label: d.label || (0 === f ? "Default Camera" : `Camera ${f + 1}`),
}));
} finally {
c &&
(console.warn(
"Call listCameras after successfully starting a QR scanner to avoid creating a temporary video stream"
),
e._stopVideoStream(c));
}
}
async hasFlash() {
let a;
try {
if (this.$video.srcObject) {
if (!(this.$video.srcObject instanceof MediaStream)) return !1;
a = this.$video.srcObject;
} else a = (await this._getCameraStream()).stream;
return "torch" in a.getVideoTracks()[0].getSettings();
} catch (b) {
return !1;
} finally {
a &&
a !== this.$video.srcObject &&
(console.warn(
"Call hasFlash after successfully starting the scanner to avoid creating a temporary video stream"
),
e._stopVideoStream(a));
}
}
isFlashOn() {
return this._flashOn;
}
async toggleFlash() {
this._flashOn ? await this.turnFlashOff() : await this.turnFlashOn();
}
async turnFlashOn() {
if (
!this._flashOn &&
!this._destroyed &&
((this._flashOn = !0), this._active && !this._paused)
)
try {
if (!(await this.hasFlash())) throw "No flash available";
await this.$video.srcObject
.getVideoTracks()[0]
.applyConstraints({ advanced: [{ torch: !0 }] });
} catch (a) {
throw ((this._flashOn = !1), a);
}
}
async turnFlashOff() {
this._flashOn && ((this._flashOn = !1), await this._restartVideoStream());
}
destroy() {
this.$video.removeEventListener("loadedmetadata", this._onLoadedMetaData);
this.$video.removeEventListener("play", this._onPlay);
document.removeEventListener("visibilitychange", this._onVisibilityChange);
window.removeEventListener("resize", this._updateOverlay);
this._destroyed = !0;
this._flashOn = !1;
this.stop();
e._postWorkerMessage(this._qrEnginePromise, "close");
}
async start() {
if (this._destroyed)
throw Error(
"The QR scanner can not be started as it had been destroyed."
);
if (!this._active || this._paused)
if (
("https:" !== window.location.protocol &&
console.warn(
"The camera stream is only accessible if the page is transferred via https."
),
(this._active = !0),
!document.hidden)
)
if (((this._paused = !1), this.$video.srcObject))
await this.$video.play();
else
try {
let { stream: a, facingMode: b } = await this._getCameraStream();
!this._active || this._paused
? e._stopVideoStream(a)
: (this._setVideoMirror(b),
(this.$video.srcObject = a),
await this.$video.play(),
this._flashOn &&
((this._flashOn = !1), this.turnFlashOn().catch(() => {})));
} catch (a) {
if (!this._paused) throw ((this._active = !1), a);
}
}
stop() {
this.pause();
this._active = !1;
}
async pause(a = !1) {
this._paused = !0;
if (!this._active) return !0;
this.$video.pause();
this.$overlay && (this.$overlay.style.display = "none");
let b = () => {
this.$video.srcObject instanceof MediaStream &&
(e._stopVideoStream(this.$video.srcObject),
(this.$video.srcObject = null));
};
if (a) return b(), !0;
await new Promise((c) => setTimeout(c, 300));
if (!this._paused) return !1;
b();
return !0;
}
async setCamera(a) {
a !== this._preferredCamera &&
((this._preferredCamera = a), await this._restartVideoStream());
}
static async scanImage(a, b, c, d, f = !1, h = !1) {
let m,
n = !1;
b &&
("scanRegion" in b ||
"qrEngine" in b ||
"canvas" in b ||
"disallowCanvasResizing" in b ||
"alsoTryWithoutScanRegion" in b ||
"returnDetailedScanResult" in b)
? ((m = b.scanRegion),
(c = b.qrEngine),
(d = b.canvas),
(f = b.disallowCanvasResizing || !1),
(h = b.alsoTryWithoutScanRegion || !1),
(n = !0))
: b || c || d || f || h
? console.warn(
"You're using a deprecated api for scanImage which will be removed in the future."
)
: console.warn(
"Note that the return type of scanImage will change in the future. To already switch to the new api today, you can pass returnDetailedScanResult: true."
);
b = !!c;
try {
let p, k;
[c, p] = await Promise.all([c || e.createQrEngine(), e._loadImage(a)]);
[d, k] = e._drawToCanvas(p, m, d, f);
let q;
if (c instanceof Worker) {
let g = c;
b || e._postWorkerMessageSync(g, "inversionMode", "both");
q = await new Promise((l, v) => {
let w,
u,
r,
y = -1;
u = (t) => {
t.data.id === y &&
(g.removeEventListener("message", u),
g.removeEventListener("error", r),
clearTimeout(w),
null !== t.data.data
? l({
data: t.data.data,
cornerPoints: e._convertPoints(t.data.cornerPoints, m),
})
: v(e.NO_QR_CODE_FOUND));
};
r = (t) => {
g.removeEventListener("message", u);
g.removeEventListener("error", r);
clearTimeout(w);
v("Scanner error: " + (t ? t.message || t : "Unknown Error"));
};
g.addEventListener("message", u);
g.addEventListener("error", r);
w = setTimeout(() => r("timeout"), 1e4);
let x = k.getImageData(0, 0, d.width, d.height);
y = e._postWorkerMessageSync(g, "decode", x, [x.data.buffer]);
});
} else
q = await Promise.race([
new Promise((g, l) =>
window.setTimeout(() => l("Scanner error: timeout"), 1e4)
),
(async () => {
try {
var [g] = await c.detect(d);
if (!g) throw e.NO_QR_CODE_FOUND;
return {
data: g.rawValue,
cornerPoints: e._convertPoints(g.cornerPoints, m),
};
} catch (l) {
g = l.message || l;
if (/not implemented|service unavailable/.test(g))
return (
(e._disableBarcodeDetector = !0),
e.scanImage(a, {
scanRegion: m,
canvas: d,
disallowCanvasResizing: f,
alsoTryWithoutScanRegion: h,
})
);
throw `Scanner error: ${g}`;
}
})(),
]);
return n ? q : q.data;
} catch (p) {
if (!m || !h) throw p;
let k = await e.scanImage(a, {
qrEngine: c,
canvas: d,
disallowCanvasResizing: f,
});
return n ? k : k.data;
} finally {
b || e._postWorkerMessage(c, "close");
}
}
setGrayscaleWeights(a, b, c, d = !0) {
e._postWorkerMessage(this._qrEnginePromise, "grayscaleWeights", {
red: a,
green: b,
blue: c,
useIntegerApproximation: d,
});
}
setInversionMode(a) {
e._postWorkerMessage(this._qrEnginePromise, "inversionMode", a);
}
static async createQrEngine(a) {
a &&
console.warn(
"Specifying a worker path is not required and not supported anymore."
);
a = () =>
import("./qr-scanner-worker.min.js").then((c) => c.createWorker());
if (
!(
!e._disableBarcodeDetector &&
"BarcodeDetector" in window &&
BarcodeDetector.getSupportedFormats &&
(await BarcodeDetector.getSupportedFormats()).includes("qr_code")
)
)
return a();
let b = navigator.userAgentData;
return b &&
b.brands.some(({ brand: c }) => /Chromium/i.test(c)) &&
/mac ?OS/i.test(b.platform) &&
(await b
.getHighEntropyValues(["architecture", "platformVersion"])
.then(
({ architecture: c, platformVersion: d }) =>
/arm/i.test(c || "arm") && 13 <= parseInt(d || "13")
)
.catch(() => !0))
? a()
: new BarcodeDetector({ formats: ["qr_code"] });
}
_onPlay() {
this._scanRegion = this._calculateScanRegion(this.$video);
this._updateOverlay();
this.$overlay && (this.$overlay.style.display = "");
this._scanFrame();
}
_onLoadedMetaData() {
this._scanRegion = this._calculateScanRegion(this.$video);
this._updateOverlay();
}
_onVisibilityChange() {
document.hidden ? this.pause() : this._active && this.start();
}
_calculateScanRegion(a) {
let b = Math.round((2 / 3) * Math.min(a.videoWidth, a.videoHeight));
return {
x: Math.round((a.videoWidth - b) / 2),
y: Math.round((a.videoHeight - b) / 2),
width: b,
height: b,
downScaledWidth: this._legacyCanvasSize,
downScaledHeight: this._legacyCanvasSize,
};
}
_updateOverlay() {
requestAnimationFrame(() => {
if (this.$overlay) {
var a = this.$video,
b = a.videoWidth,
c = a.videoHeight,
d = a.offsetWidth,
f = a.offsetHeight,
h = a.offsetLeft,
m = a.offsetTop,
n = window.getComputedStyle(a),
p = n.objectFit,
k = b / c,
q = d / f;
switch (p) {
case "none":
var g = b;
var l = c;
break;
case "fill":
g = d;
l = f;
break;
default:
("cover" === p ? k > q : k < q)
? ((l = f), (g = l * k))
: ((g = d), (l = g / k)),
"scale-down" === p &&
((g = Math.min(g, b)), (l = Math.min(l, c)));
}
var [v, w] = n.objectPosition.split(" ").map((r, y) => {
const x = parseFloat(r);
return r.endsWith("%") ? ((y ? f - l : d - g) * x) / 100 : x;
});
n = this._scanRegion.width || b;
q = this._scanRegion.height || c;
p = this._scanRegion.x || 0;
var u = this._scanRegion.y || 0;
k = this.$overlay.style;
k.width = `${(n / b) * g}px`;
k.height = `${(q / c) * l}px`;
k.top = `${m + w + (u / c) * l}px`;
c = /scaleX\(-1\)/.test(a.style.transform);
k.left = `${h + (c ? d - v - g : v) + ((c ? b - p - n : p) / b) * g}px`;
k.transform = a.style.transform;
}
});
}
static _convertPoints(a, b) {
if (!b) return a;
let c = b.x || 0,
d = b.y || 0,
f = b.width && b.downScaledWidth ? b.width / b.downScaledWidth : 1;
b = b.height && b.downScaledHeight ? b.height / b.downScaledHeight : 1;
for (let h of a) (h.x = h.x * f + c), (h.y = h.y * b + d);
return a;
}
_scanFrame() {
!this._active ||
this.$video.paused ||
this.$video.ended ||
("requestVideoFrameCallback" in this.$video
? this.$video.requestVideoFrameCallback.bind(this.$video)
: requestAnimationFrame)(async () => {
if (!(1 >= this.$video.readyState)) {
var a = Date.now() - this._lastScanTimestamp,
b = 1e3 / this._maxScansPerSecond;
a < b && (await new Promise((d) => setTimeout(d, b - a)));
this._lastScanTimestamp = Date.now();
try {
var c = await e.scanImage(this.$video, {
scanRegion: this._scanRegion,
qrEngine: this._qrEnginePromise,
canvas: this.$canvas,
});
} catch (d) {
if (!this._active) return;
this._onDecodeError(d);
}
!e._disableBarcodeDetector ||
(await this._qrEnginePromise) instanceof Worker ||
(this._qrEnginePromise = e.createQrEngine());
c
? (this._onDecode
? this._onDecode(c)
: this._legacyOnDecode && this._legacyOnDecode(c.data),
this.$codeOutlineHighlight &&
(clearTimeout(this._codeOutlineHighlightRemovalTimeout),
(this._codeOutlineHighlightRemovalTimeout = void 0),
this.$codeOutlineHighlight.setAttribute(
"viewBox",
`${this._scanRegion.x || 0} ` +
`${this._scanRegion.y || 0} ` +
`${this._scanRegion.width || this.$video.videoWidth} ` +
`${this._scanRegion.height || this.$video.videoHeight}`
),
this.$codeOutlineHighlight.firstElementChild.setAttribute(
"points",
c.cornerPoints.map(({ x: d, y: f }) => `${d},${f}`).join(" ")
),
(this.$codeOutlineHighlight.style.display = "")))
: this.$codeOutlineHighlight &&
!this._codeOutlineHighlightRemovalTimeout &&
(this._codeOutlineHighlightRemovalTimeout = setTimeout(
() => (this.$codeOutlineHighlight.style.display = "none"),
100
));
}
this._scanFrame();
});
}
_onDecodeError(a) {
a !== e.NO_QR_CODE_FOUND && console.log(a);
}
async _getCameraStream() {
if (!navigator.mediaDevices) throw "Camera not found.";
let a = /^(environment|user)$/.test(this._preferredCamera)
? "facingMode"
: "deviceId",
b = [{ width: { min: 1024 } }, { width: { min: 768 } }, {}],
c = b.map((d) =>
Object.assign({}, d, { [a]: { exact: this._preferredCamera } })
);
for (let d of [...c, ...b])
try {
let f = await navigator.mediaDevices.getUserMedia({
video: d,
audio: !1,
}),
h =
this._getFacingMode(f) ||
(d.facingMode
? this._preferredCamera
: "environment" === this._preferredCamera
? "user"
: "environment");
return { stream: f, facingMode: h };
} catch (f) {}
throw "Camera not found.";
}
async _restartVideoStream() {
let a = this._paused;
(await this.pause(!0)) && !a && this._active && (await this.start());
}
static _stopVideoStream(a) {
for (let b of a.getTracks()) b.stop(), a.removeTrack(b);
}
_setVideoMirror(a) {
this.$video.style.transform = "scaleX(" + ("user" === a ? -1 : 1) + ")";
}
_getFacingMode(a) {
return (a = a.getVideoTracks()[0])
? /rear|back|environment/i.test(a.label)
? "environment"
: /front|user|face/i.test(a.label)
? "user"
: null
: null;
}
static _drawToCanvas(a, b, c, d = !1) {
c = c || document.createElement("canvas");
let f = b && b.x ? b.x : 0,
h = b && b.y ? b.y : 0,
m = b && b.width ? b.width : a.videoWidth || a.width,
n = b && b.height ? b.height : a.videoHeight || a.height;
d ||
((d = b && b.downScaledWidth ? b.downScaledWidth : m),
(b = b && b.downScaledHeight ? b.downScaledHeight : n),
c.width !== d && (c.width = d),
c.height !== b && (c.height = b));
b = c.getContext("2d", { alpha: !1 });
b.imageSmoothingEnabled = !1;
b.drawImage(a, f, h, m, n, 0, 0, c.width, c.height);
return [c, b];
}
static async _loadImage(a) {
if (a instanceof Image) return await e._awaitImageLoad(a), a;
if (
a instanceof HTMLVideoElement ||
a instanceof HTMLCanvasElement ||
a instanceof SVGImageElement ||
("OffscreenCanvas" in window && a instanceof OffscreenCanvas) ||
("ImageBitmap" in window && a instanceof ImageBitmap)
)
return a;
if (
a instanceof File ||
a instanceof Blob ||
a instanceof URL ||
"string" === typeof a
) {
let b = new Image();
b.src =
a instanceof File || a instanceof Blob
? URL.createObjectURL(a)
: a.toString();
try {
return await e._awaitImageLoad(b), b;
} finally {
(a instanceof File || a instanceof Blob) && URL.revokeObjectURL(b.src);
}
} else throw "Unsupported image type.";
}
static async _awaitImageLoad(a) {
(a.complete && 0 !== a.naturalWidth) ||
(await new Promise((b, c) => {
let d = (f) => {
a.removeEventListener("load", d);
a.removeEventListener("error", d);
f instanceof ErrorEvent ? c("Image load error") : b();
};
a.addEventListener("load", d);
a.addEventListener("error", d);
}));
}
static async _postWorkerMessage(a, b, c, d) {
return e._postWorkerMessageSync(await a, b, c, d);
}
static _postWorkerMessageSync(a, b, c, d) {
if (!(a instanceof Worker)) return -1;
let f = e._workerMessageId++;
a.postMessage({ id: f, type: b, data: c }, d);
return f;
}
}
e.DEFAULT_CANVAS_SIZE = 400;
e.NO_QR_CODE_FOUND = "No QR code found";
e._disableBarcodeDetector = !1;
e._workerMessageId = 0;
export default e;
2023-06-27 14:31:55 +02:00
//# sourceMappingURL=qr-scanner.min.js.map