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added torch (turn off doesn't work) #36

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added torch (turn off doesn't work) #36

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30 changes: 23 additions & 7 deletions src/components/StreamBarcodeReader.vue
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Original file line number Diff line number Diff line change
@@ -1,10 +1,15 @@
<template>
<div class="scanner-container">
<div v-show="!isLoading">
<video poster="data:image/gif,AAAA" ref="scanner"></video>
<div class="overlay-element"></div>
<div class="laser"></div>
</div>
<div class="scanner">
<div class="scanner-ui" v-show="!isLoading">
<button type='button' @click="torchChange(!torch)">Flash</button>
</div>
<div class="scanner-container">
<div v-show="!isLoading">
<video poster="data:image/gif,AAAA" ref="scanner"></video>
<div class="overlay-element"></div>
<div class="laser"></div>
</div>
</div>
</div>
</template>

Expand All @@ -16,6 +21,7 @@ export default {

data() {
return {
torch: false,
isLoading: true,
codeReader: new BrowserMultiFormatReader(),
isMediaStreamAPISupported:
Expand Down Expand Up @@ -44,6 +50,7 @@ export default {

methods: {
start() {
// console.log(this.$refs.scanner)
this.codeReader.decodeFromVideoDevice(
undefined,
this.$refs.scanner,
Expand All @@ -53,6 +60,15 @@ export default {
}
}
);
/* setTimeout(() => { document.getElementsByTagName('video')[0]
.srcObject.getVideoTracks()[0].applyConstraints({ advanced: [{ torch: true }] }); }, 2000);*/

},
torchChange(value) {
alert(value)
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I think it should be removed to avoid nag popup during demo

document.getElementsByTagName('video')[0]
.srcObject.getVideoTracks()[0].applyConstraints({ advanced: [{ torch: value }] });
this.torch = value;
}
}
};
Expand Down Expand Up @@ -124,4 +140,4 @@ video {
transform: translateY(75px);
}
}
</style>
</style>