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more careful checking in setting line overflow. simple one way toggle

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This commit is contained in:
sawka 2023-04-17 16:19:29 -07:00
parent 9296e60518
commit a8c131d8cf
1 changed files with 7 additions and 1 deletions
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8
src/linecomps.tsx
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@ -240,7 +240,13 @@ class LineCmd extends React.Component<{screen : LineContainerModel, line : LineT
return;
}
let metaElemWidth = metaElem.offsetWidth;
if (metaElemWidth == 0) {
return;
}
let metaChild = metaElem.firstChild;
if (metaChild == null) {
return;
}
let children = metaChild.childNodes;
let childWidth = 0;
for (let i=0; i<children.length; i++) {
@ -248,7 +254,7 @@ class LineCmd extends React.Component<{screen : LineContainerModel, line : LineT
childWidth += ch.offsetWidth;
}
let isOverflow = (childWidth > metaElemWidth);
if (isOverflow != this.isOverflow.get()) {
if (isOverflow && isOverflow != this.isOverflow.get()) {
mobx.action(() => {
this.isOverflow.set(isOverflow);
})();