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Always scroll to explanation text

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fixes #29
This commit is contained in:
Arne Keller 2021-09-20 10:22:37 +02:00
parent bbb0f7de38
commit cbe7d47cdd
1 changed files with 2 additions and 1 deletions
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frontend/src/mathjax-explanation.ts
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@ -43,7 +43,8 @@ class MathjaxExplanation extends MathjaxAdapter {
// scroll to element if needed // scroll to element if needed
const hostEl = this.shadowRoot!.host as HTMLElement; const hostEl = this.shadowRoot!.host as HTMLElement;
const dy = el.offsetTop - hostEl.offsetTop - hostEl.scrollTop; const dy = el.offsetTop - hostEl.offsetTop - hostEl.scrollTop;
if (dy > hostEl.offsetHeight || dy < 0) { // end of text is below the container or the start of the text is above the container:
if (dy + el.offsetHeight > hostEl.offsetHeight || dy < 0) {
hostEl.scrollBy(0, -hostEl.scrollTop + el.offsetTop - hostEl.offsetTop); hostEl.scrollBy(0, -hostEl.scrollTop + el.offsetTop - hostEl.offsetTop);
} }
el.style.opacity = "1.0"; el.style.opacity = "1.0";