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Merge pull request #18109 from Snuffleupagus/textLayer-no-cleanup-on-pending

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Don't invoke `cleanupTextLayer` when there are pending textLayers
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Tim van der Meij 2024-05-17 14:10:33 +02:00 committed by GitHub
commit 63b66b412c
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1 changed files with 6 additions and 0 deletions
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src/display/text_layer.js
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@ -63,6 +63,7 @@ const DEFAULT_FONT_SIZE = 30;
const DEFAULT_FONT_ASCENT = 0.8;
const ascentCache = new Map();
let _canvasContext = null;
const pendingTextLayers = new Set();
function getCtx(lang = null) {
if (!_canvasContext) {
@ -85,6 +86,9 @@ function getCtx(lang = null) {
}
function cleanupTextLayer() {
if (pendingTextLayers.size > 0) {
return;
}
_canvasContext?.canvas.remove();
_canvasContext = null;
}
@ -245,9 +249,11 @@ class TextLayerRenderTask {
setLayerDimensions(container, viewport);
pendingTextLayers.add(this);
// Always clean-up the temporary canvas once rendering is no longer pending.
this._capability.promise
.finally(() => {
pendingTextLayers.delete(this);
this._layoutTextParams = null;
this._styleCache = null;
})