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perf(core): avoid setting the same value to view properties (#10602)

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This commit is contained in:
Dimitris-Rafail Katsampas
2024-08-08 03:28:15 +03:00
committed by GitHub
parent 75c8e941a0
commit 499fe8dc82
1 changed files with 26 additions and 9 deletions
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35
packages/core/ui/styling/style-scope.ts
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@ -721,25 +721,40 @@ export class CssState {
cssExpsProperties[property] = value;
continue;
}
delete oldProperties[property];
if (property in oldProperties && oldProperties[property] === value) {
// Skip unchanged values
continue;
if (property in oldProperties) {
const oldValue = oldProperties[property];
delete oldProperties[property];
if (oldValue === value) {
// Skip unchanged values
continue;
}
}
if (isCssVariable(property)) {
view.style.setScopedCssVariable(property, value);
delete newPropertyValues[property];
continue;
}
valuesToApply[property] = value;
}
//we need to parse CSS vars first before evaluating css expressions
// we need to parse CSS vars first before evaluating css expressions
for (const property in cssExpsProperties) {
delete oldProperties[property];
const value = evaluateCssExpressions(view, property, cssExpsProperties[property]);
if (property in oldProperties && oldProperties[property] === value) {
// Skip unchanged values
continue;
if (property in oldProperties) {
const oldValue = oldProperties[property];
delete oldProperties[property];
if (oldValue === value) {
// Skip unchanged values
continue;
}
}
if (value === unsetValue) {
delete newPropertyValues[property];
@ -761,9 +776,11 @@ export class CssState {
view[camelCasedProperty] = unsetValue;
}
}
// Set new values to the style
for (const property in valuesToApply) {
const value = valuesToApply[property];
try {
if (property in view.style) {
view.style[`css:${property}`] = value;