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guard against missing $previewContent/ViewPort in gh-editor.scrollPosition

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issue #5659
- fixes occasional issue with editor not rendering due to scrollPosition being requested before the relevant jquery elements have been set
This commit is contained in:
Kevin Ansfield 2015-08-19 19:59:59 +01:00
parent 4e4de10e19
commit c07f33f5ad
1 changed files with 1 additions and 1 deletions
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2
core/client/app/components/gh-editor.js
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@ -41,7 +41,7 @@ export default Ember.Component.extend({
// scrollPosition value such that when either scrolling or typing-at-the-end of the text editor the preview pane
// stays in sync
scrollPosition: Ember.computed('editorScrollInfo', 'height', function () {
if (!this.get('editorScrollInfo')) {
if (!this.get('editorScrollInfo') || !this.get('$previewContent') || !this.get('$previewViewPort')) {
return 0;
}