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Only adjust the camera barcode scanning live stream picture size once (fixes #734)

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Bernd Bestel 2020-04-13 22:34:52 +02:00
parent 2e625f330d
commit e897570968
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GPG Key ID: 71BD34C0D4891300
1 changed files with 20 additions and 11 deletions
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15
public/viewjs/components/barcodescanner.js
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@ -1,5 +1,6 @@
Grocy.Components.BarcodeScanner = { };
Grocy.Components.BarcodeScanner.LiveVideoSizeAdjusted = false;
Grocy.Components.BarcodeScanner.CheckCapabilities = async function()
{
var track = Quagga.CameraAccess.getActiveTrack();
@ -28,19 +29,27 @@ Grocy.Components.BarcodeScanner.CheckCapabilities = async function()
}
// Reduce the height of the video, if it's heigher than then the viewport
if (!Grocy.Components.BarcodeScanner.LiveVideoSizeAdjusted)
{
var bc = document.getElementById('barcodescanner-container');
if (bc) {
if (bc)
{
var bcAspectRatio = bc.offsetWidth / bc.offsetHeight;
var settings = track.getSettings();
if (bcAspectRatio > settings.aspectRatio) {
if (bcAspectRatio > settings.aspectRatio)
{
var v = document.querySelector('#barcodescanner-livestream video')
if (v) {
if (v)
{
var c = document.querySelector('#barcodescanner-livestream canvas')
var newWidth = v.clientWidth / bcAspectRatio * settings.aspectRatio + 'px';
v.style.width = newWidth;
c.style.width = newWidth;
}
}
Grocy.Components.BarcodeScanner.LiveVideoSizeAdjusted = true;
}
}
}