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Bug 813946 - Disable zoom if minScale and maxScale are equal. r=kats

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This commit is contained in:
Greg Roodt 2012-12-03 20:26:15 -05:00
parent c800c20a86
commit 02debff158
1 changed files with 4 additions and 1 deletions
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5
mobile/android/chrome/content/browser.js
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@ -5112,8 +5112,11 @@ var ViewportHandler = {
let width = this.clamp(parseInt(widthStr), kViewportMinWidth, kViewportMaxWidth);
let height = this.clamp(parseInt(heightStr), kViewportMinHeight, kViewportMaxHeight);
// Allow zoom unless explicity disabled or minScale and maxScale are equal.
// WebKit allows 0, "no", or "false" for viewport-user-scalable.
// Note: NaN != NaN. Therefore if minScale and maxScale are undefined the clause has no effect.
let allowZoomStr = windowUtils.getDocumentMetadata("viewport-user-scalable");
let allowZoom = !/^(0|no|false)$/.test(allowZoomStr); // WebKit allows 0, "no", or "false"
let allowZoom = !/^(0|no|false)$/.test(allowZoomStr) && (minScale != maxScale);
if (isNaN(scale) && isNaN(minScale) && isNaN(maxScale) && allowZoomStr == "" && widthStr == "" && heightStr == "") {
// Only check for HandheldFriendly if we don't have a viewport meta tag