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preserve ratio on subsequent renders

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Bernard Xie 2023-01-03 11:45:16 -08:00
parent 421b22c106
commit 1dc45b64a6
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GPG key ID: 3C3E0036CE0F892C
1 changed files with 9 additions and 9 deletions
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18
static/watch.js
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@ -12,6 +12,7 @@ function init(reconnectDelay) {
`ws://${window.location.host}${window.location.pathname}watch`
);
let isInit = true;
let ratio;
ws.onopen = () => {
reconnectDelay = 1000;
console.info("watch websocket opened");
@ -33,11 +34,10 @@ function init(reconnectDelay) {
// out the width, height and viewbox out of the top level SVG tag and update those manually.
d2SVG.innerHTML = msg.svg;
const svgEl = d2SVG.querySelector("svg");
let width = parseInt(svgEl.getAttribute("width"), 10);
let height = parseInt(svgEl.getAttribute("height"), 10);
if (isInit) {
const svgEl = d2SVG.querySelector("svg");
let width = parseInt(svgEl.getAttribute("width"), 10);
let height = parseInt(svgEl.getAttribute("height"), 10);
let ratio;
if (width > height) {
if (width > window.innerWidth) {
ratio = window.innerWidth / width;
@ -46,13 +46,13 @@ function init(reconnectDelay) {
ratio = window.innerHeight / height;
}
// Scale svg fit to zoom
if (ratio) {
// body padding is 8px
svgEl.setAttribute("width", width * ratio - 16);
svgEl.setAttribute("height", height * ratio - 16);
}
isInit = false;
}
if (ratio) {
// body padding is 8px
svgEl.setAttribute("width", width * ratio - 16);
svgEl.setAttribute("height", height * ratio - 16);
}
d2ErrDiv.style.display = "none";
}