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Editor: prevent jumping when using the backspace button in the Text editor in Firefox and IE. 

Fixes #37072.

git-svn-id: https://develop.svn.wordpress.org/trunk@37684 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Andrew Ozz 2016-06-11 05:14:18 +00:00
parent b9d46425c0
commit e65a667c9c
1 changed files with 5 additions and 1 deletions
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6
src/wp-admin/js/editor-expand.js
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@ -86,17 +86,21 @@
var length = textEditor.value.length; var length = textEditor.value.length;
var height = parseInt( textEditor.style.height, 10 ); var height = parseInt( textEditor.style.height, 10 );
var top = window.scrollTop;
if ( length < oldTextLength ) { if ( length < oldTextLength ) {
// textEditor.scrollHeight is not adjusted until the next line. // textEditor.scrollHeight is not adjusted until the next line.
textEditor.style.height = 'auto'; textEditor.style.height = 'auto';
if ( textEditor.scrollHeight >= autoresizeMinHeight ) { if ( textEditor.scrollHeight > autoresizeMinHeight ) {
textEditor.style.height = textEditor.scrollHeight + 'px'; textEditor.style.height = textEditor.scrollHeight + 'px';
} else { } else {
textEditor.style.height = autoresizeMinHeight + 'px'; textEditor.style.height = autoresizeMinHeight + 'px';
} }
// Prevent scroll-jumping in Firefox and IE.
window.scrollTop = top;
if ( textEditor.scrollHeight < height ) { if ( textEditor.scrollHeight < height ) {
adjust(); adjust();
} }