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Prevent default actions when zooming. Otherwise the browser performs a zoom of the entire page

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Julian Viereck 2011-12-18 20:42:06 +01:00
parent 0226405b86
commit 3a86e047e0
1 changed files with 8 additions and 0 deletions
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8
web/viewer.js
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@ -895,18 +895,26 @@ window.addEventListener('keydown', function keydown(evt) {
return; // ignoring if the 'controls' element is focused return; // ignoring if the 'controls' element is focused
curElement = curElement.parentNode; curElement = curElement.parentNode;
} }
var handled = false;
switch (evt.keyCode) { switch (evt.keyCode) {
case 61: // FF/Mac '=' case 61: // FF/Mac '='
case 107: // FF '+' and '=' case 107: // FF '+' and '='
case 187: // Chrome '+' case 187: // Chrome '+'
PDFView.zoomIn(); PDFView.zoomIn();
handled = true;
break; break;
case 109: // FF '-' case 109: // FF '-'
case 189: // Chrome '-' case 189: // Chrome '-'
PDFView.zoomOut(); PDFView.zoomOut();
handled = true;
break; break;
case 48: // '0' case 48: // '0'
PDFView.setScale(kDefaultScale, true); PDFView.setScale(kDefaultScale, true);
handled = true;
break; break;
} }
if (handled) {
evt.preventDefault();
}
}); });