init

2026-10-24 14:03:52 +07:00
commit 4fe046de58
4790 changed files with 311146 additions and 0 deletions
@@ -0,0 +1,206 @@
+var Snap = {
+    snap: undefined,
+    video: undefined,
+    videoSelect: undefined,
+    canvas: undefined,
+    wait: undefined,
+    imageCapture: null,
+
+    init: function () {
+        MovimTpl.pushAnchorState('snap', function () {
+            Snap.snap.classList = '';
+            Snap.close();
+        });
+
+        Snap.snap = document.querySelector('#snap');
+        Snap.canvas = document.querySelector('#snap canvas');
+        Snap.wait = document.querySelector("#snap #snapwait");
+
+        Snap.video = document.querySelector('#snap video');
+        Snap.videoSelect = document.querySelector('#snap select#snapsource');
+
+        Snap.close();
+
+        Snap.getStream().then(Snap.getDevices).then(Snap.gotDevices);
+
+        document.querySelector("#snap #snapshoot").onclick = () => Snap.shoot();
+
+        document.querySelector("#snap #snapswitch").onclick = () => {
+            Snap.snap.classList = 'init';
+
+            Snap.videoSelect.selectedIndex++;
+
+            // No empty selection
+            if (Snap.videoSelect.selectedIndex == -1) {
+                Snap.videoSelect.selectedIndex++;
+            }
+
+            Toast.send(Snap.videoSelect.options[Snap.videoSelect.selectedIndex].label);
+            Snap.getStream();
+        };
+
+        Snap.snap.classList = 'init';
+
+        document.querySelector("#snap #snapupload").onclick = () => {
+            Snap.snap.classList = 'wait';
+            Upload.init();
+        };
+
+        document.querySelector("#snap #snapdraw").onclick = () => {
+            Snap.snap.classList = '';
+            Snap.close();
+            Draw.initCanvas = Snap.canvas;
+            Draw_ajaxHttpGet();
+        };
+
+        document.querySelector("#snap #snapback").onclick = () => {
+            history.back();
+        };
+
+        document.querySelector("#snap #snapclose").onclick = () => {
+            Snap.snap.classList = 'shoot';
+            Snap.video.play();
+            Upload.abort();
+        };
+    },
+
+    close: function () {
+        if (!Snap.video) return;
+
+        let stream = Snap.video.srcObject;
+
+        if (stream) {
+            stream.getTracks().forEach(track => track.stop());
+        }
+
+        Snap.video.srcObject = null;
+    },
+
+    getStream: function () {
+        Snap.snap.classList = 'wait';
+
+        if (Snap.video.srcObject) {
+            Snap.video.srcObject.getTracks().forEach(track => track.stop());
+        }
+
+        const videoSource = Snap.videoSelect.value;
+        const constraints = {
+            video: {
+                deviceId: videoSource ? { exact: videoSource } : undefined,
+                width: { ideal: 1920 },
+                height: { ideal: 1920 }
+            }
+        };
+
+        return navigator.mediaDevices.getUserMedia(constraints)
+            .then(Snap.gotStream);
+    },
+
+    gotStream: function (stream) {
+        Snap.snap.classList = 'shoot';
+
+        Snap.videoSelect.selectedIndex = [...Snap.videoSelect.options].
+            findIndex(option => option.text === stream.getVideoTracks()[0].label);
+        Snap.video.srcObject = stream;
+
+        // We try to use ImageCapture
+        if (typeof (ImageCapture) != 'undefined') {
+            const track = stream.getVideoTracks()[0];
+            Snap.imageCapture = new ImageCapture(track);
+        }
+
+        // If we cancel after the authorization was given
+        if (Snap.snap.classList == '') {
+            Snap.close();
+        };
+    },
+
+    getDevices: function () {
+        return navigator.mediaDevices.enumerateDevices();
+    },
+
+    gotDevices: function (devicesInfo) {
+        Snap.videoSelect.innerHTML = '';
+
+        for (const deviceInfo of devicesInfo) {
+            if (deviceInfo.kind === 'videoinput') {
+                const option = document.createElement('option');
+                option.value = deviceInfo.deviceId;
+                option.text = deviceInfo.label || `Camera ${videoSelect.length + 1}`;
+
+                if (!Snap.videoSelect.querySelector('option[value="' + deviceInfo.deviceId + '"]')) {
+                    Snap.videoSelect.appendChild(option);
+                }
+            }
+        }
+
+        if (Snap.videoSelect.options.length >= 2) {
+            document.querySelector("#snap #snapswitch").classList.add('enabled');
+        }
+    },
+
+    shoot: function () {
+        if (Snap.imageCapture) {
+            Snap.imageCapture.takePhoto()
+                .then(blob => createImageBitmap(blob))
+                .then(image => {
+                    Snap.canvas.width = image.width;
+                    Snap.canvas.height = image.height;
+                    var context = Snap.canvas.getContext('2d');
+                    context.drawImage(image, 0, 0, image.width, image.height);
+
+                    Snap.compress();
+                })
+                .catch(error => console.log(error));
+
+        } else {
+            Snap.canvas.width = Snap.video.videoWidth;
+            Snap.canvas.height = Snap.video.videoHeight;
+            var context = Snap.canvas.getContext('2d');
+            context.drawImage(Snap.video, 0, 0, Snap.video.videoWidth, Snap.video.videoHeight);
+            Snap.video.pause();
+
+            Snap.compress();
+        }
+    },
+    compress: function () {
+        Snap.canvas.toBlob(
+            function (blob) {
+                Upload.prepare(blob);
+            },
+            'image/jpeg',
+            0.85
+        );
+
+        Upload.name = 'snapshot.jpg';
+        Snap.snap.classList = 'upload';
+    },
+    clear: function () {
+        Snap.video.play();
+        var context = Snap.canvas.getContext('2d');
+        context.clearRect(0, 0, Snap.canvas.width, Snap.canvas.height);
+    },
+    end: function () {
+        Snap.snap.classList = '';
+        Snap.wait.style.backgroundImage = '';
+        Snap.close();
+    }
+}
+
+MovimEvents.registerWindow('loaded', 'snap', () => {
+    Upload.attach((file) => {
+        if (Snap.snap) Snap.end();
+    });
+
+    Upload.progress((percent) => {
+        if (Snap.wait) {
+            Snap.wait.style.backgroundImage = 'linear-gradient(to top, rgba(0, 0, 0, 0.5) ' + percent + '%, transparent ' + percent + '%)';
+        }
+    });
+
+    Upload.fail(() => {
+        if (Snap.snap) {
+            Snap.snap.classList = 'upload'; Snap.wait.style.backgroundImage = '';
+        }
+    });
+});