emmit resize event if scale changed

This commit is contained in:
Mario Wolff 2019-01-15 13:13:19 +01:00
parent 0b3e7839eb
commit abee356e42
2 changed files with 16 additions and 0 deletions

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@ -958,6 +958,14 @@ Limitations:
- Only direct descendants of a slide section can be stretched
- Only one descendant per slide section can be stretched
### Resize Event
When reveal.js changes the scale of the slides it fires an resize event. You can subscribe to the event to resize your elements accordingly.
```javascript
Reveal.addEventListener( 'overviewshown', function( event ) { /* console.log(event.scale,event.oldscale,event.size); */ } );
```
### postMessage API
The framework has a built-in postMessage API that can be used when communicating with a presentation inside of another window. Here's an example showing how you'd make a reveal.js instance in the given window proceed to slide 2:

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@ -1971,6 +1971,7 @@
dom.slides.style.height = size.height + 'px';
// Determine scale of content to fit within available space
var oldscale =scale;
scale = Math.min( size.presentationWidth / size.width, size.presentationHeight / size.height );
// Respect max/min scale settings
@ -2036,6 +2037,13 @@
}
if( oldscale!==scale ){
dispatchEvent( 'resize', {
'oldscale': oldscale,
'scale': scale,
'size': size
} );
}
}
updateProgress();