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Merge pull request #12354 from Snuffleupagus/BaseViewer-container-position-absolute

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Ensure that the `container` div, on `BaseViewer`-instances, is absolutely positioned
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Tim van der Meij 2020-09-09 22:32:36 +02:00 committed by GitHub
commit 82dede0458
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1 changed files with 14 additions and 7 deletions
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21
web/base_viewer.js
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@ -145,14 +145,21 @@ class BaseViewer {
this.viewer = options.viewer || options.container.firstElementChild;
if (
(typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC")) &&
!(
this.container instanceof HTMLDivElement &&
this.viewer instanceof HTMLDivElement
)
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || GENERIC")
) {
throw new Error("Invalid `container` and/or `viewer` option.");
if (
!(
this.container instanceof HTMLDivElement &&
this.viewer instanceof HTMLDivElement
)
) {
throw new Error("Invalid `container` and/or `viewer` option.");
}
if (getComputedStyle(this.container).position !== "absolute") {
throw new Error("The `container` must be absolutely positioned.");
}
}
this.eventBus = options.eventBus;
this.linkService = options.linkService || new SimpleLinkService();