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Improve the pageNumber validation in BaseViewer.isPageVisible (PR 10217 follow-up)

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This commit is contained in:
Jonas Jenwald 2020-11-12 15:24:36 +01:00
parent 85de01e34b
commit 8b5bc8d7f9
1 changed files with 8 additions and 2 deletions
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10
web/base_viewer.js
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@ -1096,9 +1096,15 @@ class BaseViewer {
if (!this.pdfDocument) {
return false;
}
if (pageNumber < 1 || pageNumber > this.pagesCount) {
if (
!(
Number.isInteger(pageNumber) &&
pageNumber > 0 &&
pageNumber <= this.pagesCount
)
) {
console.error(
`${this._name}.isPageVisible: "${pageNumber}" is out of bounds.`
`${this._name}.isPageVisible: "${pageNumber}" is not a valid page.`
);
return false;
}