stklcode/wp-liveticker
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prepend new elements instead of replacing HTML on AJAX update (#9) (#12)

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Replacing the body by prepending HTML results in the full content
being re-rendered. This can be a performance issue, but is definitely
annoying when embedding media in ticks.
This commit is contained in:
Stefan Kalscheuer 2020-05-01 14:52:25 +02:00
parent 04131a1d99
commit d75b790ccf
2 changed files with 10 additions and 2 deletions
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1
README.md
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@ -85,6 +85,7 @@ caching time of 12 hours obviously makes no sense.
* Use GMT for automatic updates
* Gutenberg Block available
* Ticks exposed through REST API
* Changed AJAX update logic for embedded media compatibility
### 1.0.0 - 2018-11-02

11
scripts/liveticker.js
View File

@ -164,8 +164,15 @@
* @return {void}
*/
var updateHTML = function( t, u ) {
// Prepend HTML of new ticks.
t.e.innerHTML = u.h + t.e.innerHTML;
// Parse new DOM-part.
var n = document.createElement( 'ul' );
n.innerHTML = u.h;
// Prepend new ticks to container.
while ( n.hasChildNodes() ) {
t.e.prepend( n.lastChild );
}
t.e.parentNode.setAttribute( 'data-sclt-last', u.t );
// Remove tail, if limit is set.