feat(new tool): camera screenshot and recorder

src/tools/camera-recorder/camera-recorder.vue

@@ -0,0 +1,202 @@
+<template>
+  <div>
+    <c-card v-if="!isSupported"> Your browser does not support recording video from camera </c-card>
+
+    <c-card v-else-if="!permissionGranted" text-center>
+      You need to grant permission to use your camera and microphone
+
+      <c-alert v-if="permissionCannotBePrompted" mt-4 text-left>
+        Your browser has blocked permission request or does not support it. You need to grant permission manually in
+        your browser settings (usually the lock icon in the address bar).
+      </c-alert>
+
+      <div v-else mt-4 flex justify-center>
+        <c-button @click="requestPermissions">Grant permission</c-button>
+      </div>
+    </c-card>
+
+    <c-card v-else>
+      <div flex gap-2>
+        <div flex-1>
+          <div>Video</div>
+          <n-select
+            v-model:value="currentCamera"
+            :options="cameras.map(({ deviceId, label }) => ({ value: deviceId, label }))"
+            placeholder="Select camera"
+          />
+        </div>
+        <div v-if="currentMicrophone && microphones.length > 0" flex-1>
+          <div>Audio</div>
+          <n-select
+            v-model:value="currentMicrophone"
+            :options="microphones.map(({ deviceId, label }) => ({ value: deviceId, label }))"
+            placeholder="Select microphone"
+          />
+        </div>
+      </div>
+
+      <div v-if="!isMediaStreamAvailable" mt-3 flex justify-center>
+        <c-button type="primary" @click="start">Start webcam</c-button>
+      </div>
+
+      <div v-else>
+        <div my-2>
+          <video ref="video" autoplay controls playsinline max-h-full w-full />
+        </div>
+
+        <div flex items-center justify-between gap-2>
+          <c-button :disabled="!isMediaStreamAvailable" @click="takeScreenshot">
+            <span mr-2> <icon-mdi-camera /></span>
+            Take screenshot
+          </c-button>
+
+          <div v-if="isRecordingSupported" flex justify-center gap-2>
+            <c-button v-if="recordingState === 'stopped'" @click="startRecording">
+              <span mr-2> <icon-mdi-video /></span>
+              Start recording
+            </c-button>
+
+            <c-button v-if="recordingState === 'recording'" @click="pauseRecording">
+              <span mr-2> <icon-mdi-pause /></span>
+              Pause
+            </c-button>
+
+            <c-button v-if="recordingState === 'paused'" @click="resumeRecording">
+              <span mr-2> <icon-mdi-play /></span>
+              Resume
+            </c-button>
+
+            <c-button v-if="recordingState !== 'stopped'" type="error" @click="stopRecording">
+              <span mr-2> <icon-mdi-record /></span>
+              Stop
+            </c-button>
+          </div>
+          <div v-else italic op-60>Video recording is not supported in your browser</div>
+        </div>
+      </div>
+    </c-card>
+
+    <div grid grid-cols-2 mt-5 gap-2>
+      <c-card v-for="({ type, value, createdAt }, index) in medias" :key="index">
+        <img v-if="type === 'image'" :src="value" max-h-full w-full alt="screenshot" />
+
+        <video v-else :src="value" controls max-h-full w-full />
+
+        <div flex items-center justify-between>
+          <div font-bold>{{ type === 'image' ? 'Screenshot' : 'Video' }}</div>
+
+          <div flex gap-2>
+            <c-button @click="downloadMedia({ type, value, createdAt })">
+              <icon-mdi-download />
+            </c-button>
+
+            <c-button @click="medias = medias.filter((_ignored, i) => i !== index)">
+              <icon-mdi-delete-outline />
+            </c-button>
+          </div>
+        </div>
+      </c-card>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import _ from 'lodash';
+
+import { useMediaRecorder } from './useMediaRecorder';
+
+type Media = { type: 'image' | 'video'; value: string; createdAt: Date };
+
+const {
+  videoInputs: cameras,
+  audioInputs: microphones,
+  permissionGranted,
+  isSupported,
+  ensurePermissions,
+} = useDevicesList({
+  requestPermissions: true,
+  constraints: { video: true, audio: true },
+  onUpdated() {
+    refreshCurrentDevices();
+  },
+});
+
+const video = ref<HTMLVideoElement>();
+const medias = ref<Media[]>([]);
+const currentCamera = ref(cameras.value[0]?.deviceId);
+const currentMicrophone = ref(microphones.value[0]?.deviceId);
+const permissionCannotBePrompted = ref(false);
+
+const {
+  stream,
+  start,
+  enabled: isMediaStreamAvailable,
+} = useUserMedia({
+  constraints: computed(() => ({
+    video: { deviceId: currentCamera.value },
+    ...(currentMicrophone.value ? { audio: { deviceId: currentMicrophone.value } } : {}),
+  })),
+  autoSwitch: true,
+});
+
+const {
+  isRecordingSupported,
+  onRecordAvailable,
+  startRecording,
+  stopRecording,
+  pauseRecording,
+  recordingState,
+  resumeRecording,
+} = useMediaRecorder({
+  stream,
+});
+
+onRecordAvailable((value) => {
+  medias.value.unshift({ type: 'video', value, createdAt: new Date() });
+});
+
+function refreshCurrentDevices() {
+  console.log('refreshCurrentDevices');
+
+  if (_.isNil(currentCamera) || !cameras.value.find((i) => i.deviceId === currentCamera.value)) {
+    currentCamera.value = cameras.value[0]?.deviceId;
+  }
+
+  if (_.isNil(microphones) || !microphones.value.find((i) => i.deviceId === currentMicrophone.value)) {
+    currentMicrophone.value = microphones.value[0]?.deviceId;
+  }
+}
+
+function takeScreenshot() {
+  if (!video.value) return;
+
+  const canvas = document.createElement('canvas');
+  canvas.width = video.value.videoWidth;
+  canvas.height = video.value.videoHeight;
+  canvas.getContext('2d')?.drawImage(video.value, 0, 0);
+  const image = canvas.toDataURL('image/png');
+
+  medias.value.unshift({ type: 'image', value: image, createdAt: new Date() });
+}
+
+watchEffect(() => {
+  if (video.value && stream.value) video.value.srcObject = stream.value;
+});
+
+async function requestPermissions() {
+  try {
+    await ensurePermissions();
+  } catch (e) {
+    permissionCannotBePrompted.value = true;
+  }
+}
+
+function downloadMedia({ type, value, createdAt }: Media) {
+  const link = document.createElement('a');
+  link.href = value;
+  link.download = `${type}-${createdAt.getTime()}.${type === 'image' ? 'png' : 'webm'}`;
+  link.click();
+}
+</script>
+
+<style lang="less" scoped></style>

src/tools/camera-recorder/index.ts

@@ -0,0 +1,12 @@
+import { Camera } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'Camera recorder',
+  path: '/camera-recorder',
+  description: 'Take a picture or record a video from your webcam or camera.',
+  keywords: ['camera', 'recoder'],
+  component: () => import('./camera-recorder.vue'),
+  icon: Camera,
+  createdAt: new Date('2023-05-15'),
+});

src/tools/camera-recorder/useMediaRecorder.ts

@@ -0,0 +1,88 @@
+import { computed, ref, type Ref } from 'vue';
+
+export { useMediaRecorder };
+
+function useMediaRecorder({ stream }: { stream: Ref<MediaStream | undefined> }): {
+  isRecordingSupported: Ref<boolean>;
+  recordingState: Ref<'stopped' | 'recording' | 'paused'>;
+  startRecording: () => void;
+  stopRecording: () => void;
+  pauseRecording: () => void;
+  resumeRecording: () => void;
+  onRecordAvailable: (cb: (url: string) => void) => void;
+} {
+  const isRecordingSupported = computed(() => MediaRecorder.isTypeSupported('video/webm'));
+  const mediaRecorder = ref<MediaRecorder | null>(null);
+  const recordedChunks = ref<Blob[]>([]);
+  const recordAvailable = createEventHook();
+  const recordingState = ref<'stopped' | 'recording' | 'paused'>('stopped');
+
+  const startRecording = () => {
+    if (!isRecordingSupported.value) return;
+    if (!stream.value) return;
+    if (recordingState.value !== 'stopped') return;
+
+    mediaRecorder.value = new MediaRecorder(stream.value, { mimeType: 'video/webm' });
+
+    mediaRecorder.value.ondataavailable = (e) => {
+      if (e.data.size > 0) {
+        recordedChunks.value.push(e.data);
+      }
+    };
+
+    mediaRecorder.value.onstop = () => {
+      recordAvailable.trigger(createVideo());
+    };
+
+    if (mediaRecorder.value.state !== 'inactive') return;
+
+    mediaRecorder.value.start();
+    recordingState.value = 'recording';
+  };
+
+  const stopRecording = () => {
+    if (!isRecordingSupported.value) return;
+    if (!mediaRecorder.value) return;
+    if (recordingState.value === 'stopped') return;
+
+    mediaRecorder.value.stop();
+    recordingState.value = 'stopped';
+  };
+
+  const pauseRecording = () => {
+    if (!isRecordingSupported.value) return;
+    if (!mediaRecorder.value) return;
+    if (recordingState.value !== 'recording') return;
+
+    mediaRecorder.value.pause();
+    recordingState.value = 'paused';
+  };
+
+  const resumeRecording = () => {
+    if (!isRecordingSupported.value) return;
+    if (!mediaRecorder.value) return;
+
+    if (recordingState.value !== 'paused') return;
+
+    mediaRecorder.value.resume();
+    recordingState.value = 'recording';
+  };
+
+  const createVideo = () => {
+    const blob = new Blob(recordedChunks.value, { type: 'video/webm' });
+    const url = URL.createObjectURL(blob);
+    recordedChunks.value = [];
+    return url;
+  };
+
+  return {
+    isRecordingSupported,
+    startRecording,
+    stopRecording,
+    pauseRecording,
+    resumeRecording,
+    recordingState,
+
+    onRecordAvailable: recordAvailable.on,
+  };
+}

src/tools/index.ts

@@ -1,6 +1,7 @@
 import { tool as base64FileConverter } from './base64-file-converter';
 import { tool as base64StringConverter } from './base64-string-converter';
 import { tool as basicAuthGenerator } from './basic-auth-generator';
+import { tool as cameraRecorder } from './camera-recorder';
 import { tool as listConverter } from './list-converter';
 import { tool as phoneParserAndFormatter } from './phone-parser-and-formatter';
 import { tool as jsonDiff } from './json-diff';
@@ -99,8 +100,8 @@ export const toolsByCategory: ToolCategory[] = [
     ],
   },
   {
-    name: 'Images',
-    components: [qrCodeGenerator, svgPlaceholderGenerator],
+    name: 'Images and videos',
+    components: [qrCodeGenerator, svgPlaceholderGenerator, cameraRecorder],
   },
   {
     name: 'Development',