@capgo/camera-preview
Version:
1,026 lines (1,018 loc) • 47.7 kB
JavaScript
var capacitorCapacitorCameraView = (function (exports, core) {
'use strict';
exports.DeviceType = void 0;
(function (DeviceType) {
DeviceType["ULTRA_WIDE"] = "ultraWide";
DeviceType["WIDE_ANGLE"] = "wideAngle";
DeviceType["TELEPHOTO"] = "telephoto";
DeviceType["TRUE_DEPTH"] = "trueDepth";
DeviceType["DUAL"] = "dual";
DeviceType["DUAL_WIDE"] = "dualWide";
DeviceType["TRIPLE"] = "triple";
})(exports.DeviceType || (exports.DeviceType = {}));
const CameraPreview = core.registerPlugin("CameraPreview", {
web: () => Promise.resolve().then(function () { return web; }).then((m) => new m.CameraPreviewWeb()),
});
async function getBase64FromFilePath(filePath) {
const url = core.Capacitor.convertFileSrc(filePath);
const response = await fetch(url);
if (!response.ok) {
throw new Error(`Failed to read file at path: ${filePath} (status ${response.status})`);
}
const blob = await response.blob();
return await new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onloadend = () => {
const dataUrl = reader.result;
const commaIndex = dataUrl.indexOf(",");
resolve(commaIndex >= 0 ? dataUrl.substring(commaIndex + 1) : dataUrl);
};
reader.onerror = () => reject(reader.error);
reader.readAsDataURL(blob);
});
}
async function deleteFile(path) {
// Use native bridge to delete file to handle platform-specific permissions/URIs
const { success } = await CameraPreview.deleteFile({ path });
return !!success;
}
const DEFAULT_VIDEO_ID = "capgo_video";
class CameraPreviewWeb extends core.WebPlugin {
constructor() {
super();
/**
* track which camera is used based on start options
* used in capture
*/
this.isBackCamera = false;
this.currentDeviceId = null;
this.videoElement = null;
this.isStarted = false;
this.orientationListenerBound = false;
}
getCurrentOrientation() {
var _a, _b;
try {
const so = screen.orientation;
const type = (so === null || so === void 0 ? void 0 : so.type) || (so === null || so === void 0 ? void 0 : so.mozOrientation) || (so === null || so === void 0 ? void 0 : so.msOrientation);
if (typeof type === "string") {
if (type.includes("portrait-primary"))
return "portrait";
if (type.includes("portrait-secondary"))
return "portrait-upside-down";
if (type.includes("landscape-primary"))
return "landscape-left";
if (type.includes("landscape-secondary"))
return "landscape-right";
if (type.includes("landscape"))
return "landscape";
if (type.includes("portrait"))
return "portrait";
}
const angle = window.orientation;
if (typeof angle === "number") {
if (angle === 0)
return "portrait";
if (angle === 180)
return "portrait-upside-down";
if (angle === 90)
return "landscape-right";
if (angle === -90)
return "landscape-left";
if (angle === 270)
return "landscape-left";
}
if ((_a = window.matchMedia("(orientation: portrait)")) === null || _a === void 0 ? void 0 : _a.matches) {
return "portrait";
}
if ((_b = window.matchMedia("(orientation: landscape)")) === null || _b === void 0 ? void 0 : _b.matches) {
return "landscape";
}
}
catch (e) {
console.error(e);
}
return "unknown";
}
ensureOrientationListener() {
if (this.orientationListenerBound)
return;
const emit = () => {
this.notifyListeners("orientationChange", {
orientation: this.getCurrentOrientation(),
});
};
window.addEventListener("orientationchange", emit);
window.addEventListener("resize", emit);
this.orientationListenerBound = true;
}
async getOrientation() {
return { orientation: this.getCurrentOrientation() };
}
getSafeAreaInsets() {
throw new Error("Method not implemented.");
}
async getZoomButtonValues() {
throw new Error("getZoomButtonValues not supported under the web platform");
}
async getSupportedPictureSizes() {
throw new Error("getSupportedPictureSizes not supported under the web platform");
}
async start(options) {
if (options.aspectRatio && (options.width || options.height)) {
throw new Error("Cannot set both aspectRatio and size (width/height). Use setPreviewSize after start.");
}
if (this.isStarted) {
throw new Error("camera already started");
}
this.isBackCamera = true;
this.isStarted = false;
const parent = document.getElementById((options === null || options === void 0 ? void 0 : options.parent) || "");
const gridMode = (options === null || options === void 0 ? void 0 : options.gridMode) || "none";
const positioning = (options === null || options === void 0 ? void 0 : options.positioning) || "top";
if (options.position) {
this.isBackCamera = options.position === "rear";
}
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (video) {
video.remove();
}
const container = options.parent
? document.getElementById(options.parent)
: document.body;
if (!container) {
throw new Error("container not found");
}
this.videoElement = document.createElement("video");
this.videoElement.id = DEFAULT_VIDEO_ID;
this.videoElement.className = options.className || "";
this.videoElement.playsInline = true;
this.videoElement.muted = true;
this.videoElement.autoplay = true;
// Remove objectFit as we'll match camera's native aspect ratio
this.videoElement.style.backgroundColor = "transparent";
// Reset any default margins that might interfere
this.videoElement.style.margin = "0";
this.videoElement.style.padding = "0";
container.appendChild(this.videoElement);
if (options.toBack) {
this.videoElement.style.zIndex = "-1";
}
// Default to 4:3 if no aspect ratio or size specified
const useDefaultAspectRatio = !options.aspectRatio && !options.width && !options.height;
const effectiveAspectRatio = options.aspectRatio || (useDefaultAspectRatio ? "4:3" : null);
if (options.width) {
this.videoElement.width = options.width;
this.videoElement.style.width = `${options.width}px`;
}
if (options.height) {
this.videoElement.height = options.height;
this.videoElement.style.height = `${options.height}px`;
}
// Handle positioning - center if x or y not provided
const centerX = options.x === undefined;
const centerY = options.y === undefined;
// Always set position to absolute for proper positioning
this.videoElement.style.position = "absolute";
console.log("Initial positioning flags:", {
centerX,
centerY,
x: options.x,
y: options.y,
});
if (options.x !== undefined) {
this.videoElement.style.left = `${options.x}px`;
}
if (options.y !== undefined) {
this.videoElement.style.top = `${options.y}px`;
}
// Create and add grid overlay if needed
if (gridMode !== "none") {
const gridOverlay = this.createGridOverlay(gridMode);
gridOverlay.id = "camera-grid-overlay";
parent === null || parent === void 0 ? void 0 : parent.appendChild(gridOverlay);
}
// Aspect ratio handling is now done after getting camera stream
// Store centering flags for later use
const needsCenterX = centerX;
const needsCenterY = centerY;
console.log("Centering flags stored:", { needsCenterX, needsCenterY });
// First get the camera stream with basic constraints
const constraints = {
video: {
facingMode: this.isBackCamera ? "environment" : "user",
},
};
const stream = await navigator.mediaDevices.getUserMedia(constraints);
if (!stream) {
throw new Error("could not acquire stream");
}
if (!this.videoElement) {
throw new Error("video element not found");
}
// Get the actual camera dimensions from the video track
const videoTrack = stream.getVideoTracks()[0];
const settings = videoTrack.getSettings();
const cameraWidth = settings.width || 640;
const cameraHeight = settings.height || 480;
const cameraAspectRatio = cameraWidth / cameraHeight;
console.log("Camera native dimensions:", {
width: cameraWidth,
height: cameraHeight,
aspectRatio: cameraAspectRatio,
});
console.log("Container dimensions:", {
width: container.offsetWidth,
height: container.offsetHeight,
id: container.id,
});
// Now adjust video element size based on camera's native aspect ratio
if (!options.width && !options.height && !options.aspectRatio) {
// No size specified, fit camera view within container bounds
const containerWidth = container.offsetWidth || window.innerWidth;
const containerHeight = container.offsetHeight || window.innerHeight;
// Calculate dimensions that fit within container while maintaining camera aspect ratio
let targetWidth, targetHeight;
// Try fitting to container width first
targetWidth = containerWidth;
targetHeight = targetWidth / cameraAspectRatio;
// If height exceeds container, fit to height instead
if (targetHeight > containerHeight) {
targetHeight = containerHeight;
targetWidth = targetHeight * cameraAspectRatio;
}
console.log("Video element dimensions:", {
width: targetWidth,
height: targetHeight,
container: { width: containerWidth, height: containerHeight },
});
this.videoElement.width = targetWidth;
this.videoElement.height = targetHeight;
this.videoElement.style.width = `${targetWidth}px`;
this.videoElement.style.height = `${targetHeight}px`;
// Center the video element within its parent container
if (needsCenterX || options.x === undefined) {
const x = Math.round((containerWidth - targetWidth) / 2);
this.videoElement.style.left = `${x}px`;
}
if (needsCenterY || options.y === undefined) {
let y;
switch (positioning) {
case "top":
y = 0;
break;
case "bottom":
y = window.innerHeight - targetHeight;
break;
case "center":
default:
y = Math.round((window.innerHeight - targetHeight) / 2);
break;
}
this.videoElement.style.setProperty("top", `${y}px`, "important");
// Force a style recalculation
this.videoElement.offsetHeight;
console.log("Positioning video:", {
positioning,
viewportHeight: window.innerHeight,
targetHeight,
calculatedY: y,
actualTop: this.videoElement.style.top,
position: this.videoElement.style.position,
});
}
}
else if (effectiveAspectRatio && !options.width && !options.height) {
// Aspect ratio specified but no size
const [widthRatio, heightRatio] = effectiveAspectRatio
.split(":")
.map(Number);
const targetRatio = widthRatio / heightRatio;
const viewportWidth = window.innerWidth;
const viewportHeight = window.innerHeight;
let targetWidth, targetHeight;
// Try fitting to viewport width first
targetWidth = viewportWidth;
targetHeight = targetWidth / targetRatio;
// If height exceeds viewport, fit to height instead
if (targetHeight > viewportHeight) {
targetHeight = viewportHeight;
targetWidth = targetHeight * targetRatio;
}
this.videoElement.width = targetWidth;
this.videoElement.height = targetHeight;
this.videoElement.style.width = `${targetWidth}px`;
this.videoElement.style.height = `${targetHeight}px`;
// Center the video element within its parent container
if (needsCenterX || options.x === undefined) {
const parentWidth = container.offsetWidth || viewportWidth;
const x = Math.round((parentWidth - targetWidth) / 2);
this.videoElement.style.left = `${x}px`;
}
if (needsCenterY || options.y === undefined) {
const parentHeight = container.offsetHeight || viewportHeight;
let y;
switch (positioning) {
case "top":
y = 0;
break;
case "bottom":
y = parentHeight - targetHeight;
break;
case "center":
default:
y = Math.round((parentHeight - targetHeight) / 2);
break;
}
this.videoElement.style.top = `${y}px`;
}
}
this.videoElement.srcObject = stream;
if (!this.isBackCamera) {
this.videoElement.style.transform = "scaleX(-1)";
}
// Set initial zoom level if specified and supported
if (options.initialZoomLevel !== undefined &&
options.initialZoomLevel !== 1.0) {
// videoTrack already declared above
if (videoTrack) {
const capabilities = videoTrack.getCapabilities();
if (capabilities.zoom) {
const zoomLevel = options.initialZoomLevel;
const minZoom = capabilities.zoom.min || 1;
const maxZoom = capabilities.zoom.max || 1;
if (zoomLevel < minZoom || zoomLevel > maxZoom) {
stream.getTracks().forEach((track) => track.stop());
throw new Error(`Initial zoom level ${zoomLevel} is not available. Valid range is ${minZoom} to ${maxZoom}`);
}
try {
await videoTrack.applyConstraints({
advanced: [{ zoom: zoomLevel }],
});
}
catch (error) {
console.warn(`Failed to set initial zoom level: ${error}`);
// Don't throw, just continue without zoom
}
}
}
}
this.isStarted = true;
this.ensureOrientationListener();
// Wait for video to be ready and get actual dimensions
await new Promise((resolve) => {
const videoEl = this.videoElement;
if (!videoEl) {
throw new Error("video element not found");
}
if (videoEl.readyState >= 2) {
resolve();
}
else {
videoEl.addEventListener("loadeddata", () => resolve(), {
once: true,
});
}
});
// Ensure centering is applied after DOM updates
await new Promise((resolve) => requestAnimationFrame(resolve));
console.log("About to re-center, flags:", { needsCenterX, needsCenterY });
// Re-apply centering with correct parent dimensions
if (needsCenterX) {
const parentWidth = container.offsetWidth;
const x = Math.round((parentWidth - this.videoElement.offsetWidth) / 2);
this.videoElement.style.left = `${x}px`;
console.log("Re-centering X:", {
parentWidth,
videoWidth: this.videoElement.offsetWidth,
x,
});
}
if (needsCenterY) {
let y;
switch (positioning) {
case "top":
y = 0;
break;
case "bottom":
y = window.innerHeight - this.videoElement.offsetHeight;
break;
case "center":
default:
y = Math.round((window.innerHeight - this.videoElement.offsetHeight) / 2);
break;
}
this.videoElement.style.setProperty("top", `${y}px`, "important");
console.log("Re-positioning Y:", {
positioning,
viewportHeight: window.innerHeight,
videoHeight: this.videoElement.offsetHeight,
y,
position: this.videoElement.style.position,
top: this.videoElement.style.top,
});
}
// Get the actual rendered dimensions after video is loaded
const rect = this.videoElement.getBoundingClientRect();
const computedStyle = window.getComputedStyle(this.videoElement);
console.log("Final video element state:", {
rect: { x: rect.x, y: rect.y, width: rect.width, height: rect.height },
style: {
position: computedStyle.position,
left: computedStyle.left,
top: computedStyle.top,
width: computedStyle.width,
height: computedStyle.height,
},
});
return {
width: Math.round(rect.width),
height: Math.round(rect.height),
x: Math.round(rect.x),
y: Math.round(rect.y),
};
}
stopStream(stream) {
if (stream) {
const tracks = stream.getTracks();
for (const track of tracks)
track.stop();
}
}
async stop() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (video) {
video.pause();
this.stopStream(video.srcObject);
video.remove();
this.isStarted = false;
}
// Remove grid overlay if it exists
const gridOverlay = document.getElementById("camera-grid-overlay");
gridOverlay === null || gridOverlay === void 0 ? void 0 : gridOverlay.remove();
}
async capture(options) {
return new Promise((resolve, reject) => {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
reject(new Error("camera is not running"));
return;
}
// video.width = video.offsetWidth;
let base64EncodedImage;
if (video && video.videoWidth > 0 && video.videoHeight > 0) {
const canvas = document.createElement("canvas");
const context = canvas.getContext("2d");
// Calculate capture dimensions
let captureWidth = video.videoWidth;
let captureHeight = video.videoHeight;
const sourceX = 0;
const sourceY = 0;
// If width or height is specified, resize to fit within both maximums while maintaining aspect ratio
if (options.width || options.height) {
const originalAspectRatio = video.videoWidth / video.videoHeight;
const targetWidth = options.width || video.videoWidth;
const targetHeight = options.height || video.videoHeight;
// Calculate dimensions that fit within both maximums
if (options.width && options.height) {
// Both dimensions specified - fit within both
const maxAspectRatio = targetWidth / targetHeight;
if (originalAspectRatio > maxAspectRatio) {
// Original is wider - fit by width
captureWidth = targetWidth;
captureHeight = targetWidth / originalAspectRatio;
}
else {
// Original is taller - fit by height
captureWidth = targetHeight * originalAspectRatio;
captureHeight = targetHeight;
}
}
else if (options.width) {
// Only width specified - maintain aspect ratio
captureWidth = targetWidth;
captureHeight = targetWidth / originalAspectRatio;
}
else {
// Only height specified - maintain aspect ratio
captureWidth = targetHeight * originalAspectRatio;
captureHeight = targetHeight;
}
}
canvas.width = captureWidth;
canvas.height = captureHeight;
// flip horizontally back camera isn't used
if (!this.isBackCamera) {
context === null || context === void 0 ? void 0 : context.translate(captureWidth, 0);
context === null || context === void 0 ? void 0 : context.scale(-1, 1);
}
context === null || context === void 0 ? void 0 : context.drawImage(video, sourceX, sourceY, captureWidth, captureHeight, 0, 0, captureWidth, captureHeight);
if (options.saveToGallery) ;
if (options.withExifLocation) ;
if ((options.format || "jpeg") === "jpeg") {
base64EncodedImage = canvas
.toDataURL("image/jpeg", (options.quality || 85) / 100.0)
.replace("data:image/jpeg;base64,", "");
}
else {
base64EncodedImage = canvas
.toDataURL("image/png")
.replace("data:image/png;base64,", "");
}
}
resolve({
value: base64EncodedImage,
exif: {},
});
});
}
async captureSample(_options) {
return this.capture(_options);
}
async stopRecordVideo() {
throw new Error("stopRecordVideo not supported under the web platform");
}
async startRecordVideo(_options) {
console.log("startRecordVideo", _options);
throw new Error("startRecordVideo not supported under the web platform");
}
async getSupportedFlashModes() {
throw new Error("getSupportedFlashModes not supported under the web platform");
}
async getHorizontalFov() {
throw new Error("getHorizontalFov not supported under the web platform");
}
async setFlashMode(_options) {
throw new Error(`setFlashMode not supported under the web platform${_options}`);
}
async flip() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
throw new Error("camera is not running");
}
// Stop current stream
this.stopStream(video.srcObject);
// Toggle camera position
this.isBackCamera = !this.isBackCamera;
// Get new constraints
const constraints = {
video: {
facingMode: this.isBackCamera ? "environment" : "user",
width: { ideal: video.videoWidth || 640 },
height: { ideal: video.videoHeight || 480 },
},
};
try {
const stream = await navigator.mediaDevices.getUserMedia(constraints);
video.srcObject = stream;
// Update current device ID from the new stream
const videoTrack = stream.getVideoTracks()[0];
if (videoTrack) {
this.currentDeviceId = videoTrack.getSettings().deviceId || null;
}
// Update video transform based on camera
if (this.isBackCamera) {
video.style.transform = "none";
video.style.webkitTransform = "none";
}
else {
video.style.transform = "scaleX(-1)";
video.style.webkitTransform = "scaleX(-1)";
}
await video.play();
}
catch (error) {
throw new Error(`Failed to flip camera: ${error}`);
}
}
async setOpacity(_options) {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!!video && !!_options.opacity)
video.style.setProperty("opacity", _options.opacity.toString());
}
async isRunning() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
return { isRunning: !!video && !!video.srcObject };
}
async getAvailableDevices() {
var _a;
if (!((_a = navigator.mediaDevices) === null || _a === void 0 ? void 0 : _a.enumerateDevices)) {
throw new Error("getAvailableDevices not supported under the web platform");
}
const devices = await navigator.mediaDevices.enumerateDevices();
const videoDevices = devices.filter((device) => device.kind === "videoinput");
// Group devices by position (front/back)
const frontDevices = [];
const backDevices = [];
videoDevices.forEach((device, index) => {
const label = device.label || `Camera ${index + 1}`;
const labelLower = label.toLowerCase();
// Determine device type based on label
let deviceType = exports.DeviceType.WIDE_ANGLE;
let baseZoomRatio = 1.0;
if (labelLower.includes("ultra") || labelLower.includes("0.5")) {
deviceType = exports.DeviceType.ULTRA_WIDE;
baseZoomRatio = 0.5;
}
else if (labelLower.includes("telephoto") ||
labelLower.includes("tele") ||
labelLower.includes("2x") ||
labelLower.includes("3x")) {
deviceType = exports.DeviceType.TELEPHOTO;
baseZoomRatio = 2.0;
}
else if (labelLower.includes("depth") ||
labelLower.includes("truedepth")) {
deviceType = exports.DeviceType.TRUE_DEPTH;
baseZoomRatio = 1.0;
}
const lensInfo = {
deviceId: device.deviceId,
label,
deviceType,
focalLength: 4.25,
baseZoomRatio,
minZoom: 1.0,
maxZoom: 1.0,
};
// Determine position and add to appropriate array
if (labelLower.includes("back") || labelLower.includes("rear")) {
backDevices.push(lensInfo);
}
else {
frontDevices.push(lensInfo);
}
});
const result = [];
if (frontDevices.length > 0) {
result.push({
deviceId: frontDevices[0].deviceId,
label: "Front Camera",
position: "front",
lenses: frontDevices,
isLogical: false,
minZoom: Math.min(...frontDevices.map((d) => d.minZoom)),
maxZoom: Math.max(...frontDevices.map((d) => d.maxZoom)),
});
}
if (backDevices.length > 0) {
result.push({
deviceId: backDevices[0].deviceId,
label: "Back Camera",
position: "rear",
lenses: backDevices,
isLogical: false,
minZoom: Math.min(...backDevices.map((d) => d.minZoom)),
maxZoom: Math.max(...backDevices.map((d) => d.maxZoom)),
});
}
return { devices: result };
}
async getZoom() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
throw new Error("camera is not running");
}
const stream = video.srcObject;
const videoTrack = stream.getVideoTracks()[0];
if (!videoTrack) {
throw new Error("no video track found");
}
const capabilities = videoTrack.getCapabilities();
const settings = videoTrack.getSettings();
if (!capabilities.zoom) {
throw new Error("zoom not supported by this device");
}
// Get current device info to determine lens type
let deviceType = exports.DeviceType.WIDE_ANGLE;
let baseZoomRatio = 1.0;
if (this.currentDeviceId) {
const devices = await navigator.mediaDevices.enumerateDevices();
const device = devices.find((d) => d.deviceId === this.currentDeviceId);
if (device) {
const labelLower = device.label.toLowerCase();
if (labelLower.includes("ultra") || labelLower.includes("0.5")) {
deviceType = exports.DeviceType.ULTRA_WIDE;
baseZoomRatio = 0.5;
}
else if (labelLower.includes("telephoto") ||
labelLower.includes("tele") ||
labelLower.includes("2x") ||
labelLower.includes("3x")) {
deviceType = exports.DeviceType.TELEPHOTO;
baseZoomRatio = 2.0;
}
else if (labelLower.includes("depth") ||
labelLower.includes("truedepth")) {
deviceType = exports.DeviceType.TRUE_DEPTH;
baseZoomRatio = 1.0;
}
}
}
const currentZoom = settings.zoom || 1;
const lensInfo = {
focalLength: 4.25,
deviceType,
baseZoomRatio,
digitalZoom: currentZoom / baseZoomRatio,
};
return {
min: capabilities.zoom.min || 1,
max: capabilities.zoom.max || 1,
current: currentZoom,
lens: lensInfo,
};
}
async setZoom(options) {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
throw new Error("camera is not running");
}
const stream = video.srcObject;
const videoTrack = stream.getVideoTracks()[0];
if (!videoTrack) {
throw new Error("no video track found");
}
const capabilities = videoTrack.getCapabilities();
if (!capabilities.zoom) {
throw new Error("zoom not supported by this device");
}
const zoomLevel = Math.max(capabilities.zoom.min || 1, Math.min(capabilities.zoom.max || 1, options.level));
// Note: autoFocus is not supported on web platform
try {
await videoTrack.applyConstraints({
advanced: [{ zoom: zoomLevel }],
});
}
catch (error) {
throw new Error(`Failed to set zoom: ${error}`);
}
}
async getFlashMode() {
throw new Error("getFlashMode not supported under the web platform");
}
async getDeviceId() {
return { deviceId: this.currentDeviceId || "" };
}
async setDeviceId(options) {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
throw new Error("camera is not running");
}
// Stop current stream
this.stopStream(video.srcObject);
// Update current device ID
this.currentDeviceId = options.deviceId;
// Get new constraints with specific device ID
const constraints = {
video: {
deviceId: { exact: options.deviceId },
width: { ideal: video.videoWidth || 640 },
height: { ideal: video.videoHeight || 480 },
},
};
try {
// Try to determine camera position from device
const devices = await navigator.mediaDevices.enumerateDevices();
const device = devices.find((d) => d.deviceId === options.deviceId);
this.isBackCamera =
(device === null || device === void 0 ? void 0 : device.label.toLowerCase().includes("back")) ||
(device === null || device === void 0 ? void 0 : device.label.toLowerCase().includes("rear")) ||
false;
const stream = await navigator.mediaDevices.getUserMedia(constraints);
video.srcObject = stream;
// Update video transform based on camera
if (this.isBackCamera) {
video.style.transform = "none";
video.style.webkitTransform = "none";
}
else {
video.style.transform = "scaleX(-1)";
video.style.webkitTransform = "scaleX(-1)";
}
await video.play();
}
catch (error) {
throw new Error(`Failed to swap to device ${options.deviceId}: ${error}`);
}
}
async getAspectRatio() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!video) {
throw new Error("camera is not running");
}
const width = video.offsetWidth;
const height = video.offsetHeight;
if (width && height) {
const ratio = width / height;
// Check for portrait camera ratios: 4:3 -> 3:4, 16:9 -> 9:16
if (Math.abs(ratio - 3 / 4) < 0.01) {
return { aspectRatio: "4:3" };
}
if (Math.abs(ratio - 9 / 16) < 0.01) {
return { aspectRatio: "16:9" };
}
}
// Default to 4:3 if no specific aspect ratio is matched
return { aspectRatio: "4:3" };
}
async setAspectRatio(options) {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!video) {
throw new Error("camera is not running");
}
if (options.aspectRatio) {
const [widthRatio, heightRatio] = options.aspectRatio
.split(":")
.map(Number);
// For camera, use portrait orientation: 4:3 becomes 3:4, 16:9 becomes 9:16
const ratio = heightRatio / widthRatio;
// Get current position and size
const rect = video.getBoundingClientRect();
const currentWidth = rect.width;
const currentHeight = rect.height;
const currentRatio = currentWidth / currentHeight;
let newWidth;
let newHeight;
if (currentRatio > ratio) {
// Width is larger, fit by height and center horizontally
newWidth = currentHeight * ratio;
newHeight = currentHeight;
}
else {
// Height is larger, fit by width and center vertically
newWidth = currentWidth;
newHeight = currentWidth / ratio;
}
// Calculate position
let x, y;
if (options.x !== undefined && options.y !== undefined) {
// Use provided coordinates, ensuring they stay within screen boundaries
x = Math.max(0, Math.min(options.x, window.innerWidth - newWidth));
y = Math.max(0, Math.min(options.y, window.innerHeight - newHeight));
}
else {
// Auto-center the view
x = (window.innerWidth - newWidth) / 2;
y = (window.innerHeight - newHeight) / 2;
}
video.style.width = `${newWidth}px`;
video.style.height = `${newHeight}px`;
video.style.left = `${x}px`;
video.style.top = `${y}px`;
video.style.position = "absolute";
const offsetX = newWidth / 8;
const offsetY = newHeight / 8;
return {
width: Math.round(newWidth),
height: Math.round(newHeight),
x: Math.round(x + offsetX),
y: Math.round(y + offsetY),
};
}
else {
video.style.objectFit = "cover";
const rect = video.getBoundingClientRect();
const offsetX = rect.width / 8;
const offsetY = rect.height / 8;
return {
width: Math.round(rect.width),
height: Math.round(rect.height),
x: Math.round(rect.left + offsetX),
y: Math.round(rect.top + offsetY),
};
}
}
createGridOverlay(gridMode) {
const overlay = document.createElement("div");
overlay.style.position = "absolute";
overlay.style.top = "0";
overlay.style.left = "0";
overlay.style.width = "100%";
overlay.style.height = "100%";
overlay.style.pointerEvents = "none";
overlay.style.zIndex = "10";
const divisions = gridMode === "3x3" ? 3 : 4;
// Create SVG for grid lines
const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
svg.style.width = "100%";
svg.style.height = "100%";
svg.style.position = "absolute";
svg.style.top = "0";
svg.style.left = "0";
// Create grid lines
for (let i = 1; i < divisions; i++) {
// Vertical lines
const verticalLine = document.createElementNS("http://www.w3.org/2000/svg", "line");
verticalLine.setAttribute("x1", `${(i / divisions) * 100}%`);
verticalLine.setAttribute("y1", "0%");
verticalLine.setAttribute("x2", `${(i / divisions) * 100}%`);
verticalLine.setAttribute("y2", "100%");
verticalLine.setAttribute("stroke", "rgba(255, 255, 255, 0.5)");
verticalLine.setAttribute("stroke-width", "1");
svg.appendChild(verticalLine);
// Horizontal lines
const horizontalLine = document.createElementNS("http://www.w3.org/2000/svg", "line");
horizontalLine.setAttribute("x1", "0%");
horizontalLine.setAttribute("y1", `${(i / divisions) * 100}%`);
horizontalLine.setAttribute("x2", "100%");
horizontalLine.setAttribute("y2", `${(i / divisions) * 100}%`);
horizontalLine.setAttribute("stroke", "rgba(255, 255, 255, 0.5)");
horizontalLine.setAttribute("stroke-width", "1");
svg.appendChild(horizontalLine);
}
overlay.appendChild(svg);
return overlay;
}
async setGridMode(options) {
// Web implementation of grid mode would need to be implemented
// For now, just resolve as a no-op
console.warn(`Grid mode '${options.gridMode}' is not yet implemented for web platform`);
}
async getGridMode() {
// Web implementation - default to none
return { gridMode: "none" };
}
async getPreviewSize() {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!video) {
throw new Error("camera is not running");
}
const offsetX = video.width / 8;
const offsetY = video.height / 8;
return {
x: video.offsetLeft + offsetX,
y: video.offsetTop + offsetY,
width: video.width,
height: video.height,
};
}
async setPreviewSize(options) {
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!video) {
throw new Error("camera is not running");
}
video.style.left = `${options.x}px`;
video.style.top = `${options.y}px`;
video.width = options.width;
video.height = options.height;
const offsetX = options.width / 8;
const offsetY = options.height / 8;
return {
width: options.width,
height: options.height,
x: options.x + offsetX,
y: options.y + offsetY,
};
}
async setFocus(options) {
// Reject if values are outside 0-1 range
if (options.x < 0 || options.x > 1 || options.y < 0 || options.y > 1) {
throw new Error("Focus coordinates must be between 0 and 1");
}
const video = document.getElementById(DEFAULT_VIDEO_ID);
if (!(video === null || video === void 0 ? void 0 : video.srcObject)) {
throw new Error("camera is not running");
}
const stream = video.srcObject;
const videoTrack = stream.getVideoTracks()[0];
if (!videoTrack) {
throw new Error("no video track found");
}
const capabilities = videoTrack.getCapabilities();
// Check if focusing is supported
if (capabilities.focusMode) {
try {
// Web API supports focus mode settings but not coordinate-based focus
// Setting to manual mode allows for coordinate focus if supported
await videoTrack.applyConstraints({
advanced: [
{
focusMode: "manual",
focusDistance: 0.5, // Mid-range focus as fallback
},
],
});
}
catch (error) {
console.warn(`setFocus is not fully supported on this device: ${error}. Focus coordinates (${options.x}, ${options.y}) were provided but cannot be applied.`);
}
}
else {
console.warn("Focus control is not supported on this device. Focus coordinates were provided but cannot be applied.");
}
}
async deleteFile(_options) {
throw new Error("deleteFile not supported under the web platform");
}
}
var web = /*#__PURE__*/Object.freeze({
__proto__: null,
CameraPreviewWeb: CameraPreviewWeb
});
exports.CameraPreview = CameraPreview;
exports.deleteFile = deleteFile;
exports.getBase64FromFilePath = getBase64FromFilePath;
return exports;
})({}, capacitorExports);
//# sourceMappingURL=plugin.js.map