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Non-standard
This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.
The mozbrowserloadstart event is fired when the browser <iframe> starts to load a new page.
This can be used when the embedder wants to start spinning a loading indicator, or update the UI in some other way to indicate loading has started.
General info
- Specification
- Non standard
- Interface
CustomEvent- Bubbles
- Yes
- Cancelable
- Yes
- Target
<iframe>- Default Action
- None
Properties
| Property | Type | Description |
|---|---|---|
target Read only |
EventTarget |
The browser iframe |
type Read only |
DOMString |
The type of event. |
bubbles Read only |
boolean |
Does the event normally bubble? |
cancelable Read only |
boolean |
Is it possible to cancel the event? |
Example
In this example the mozbrowserloadend and mozbrowserloadstart events are used to change the icon shown on the stop/reload button between stop (x) and reload (R), as appropriate.
var browser = document.querySelector("iframe");
browser.addEventListener('mozbrowserloadstart',function() {
stopReload.textContent = 'x';
});
browser.addEventListener('mozbrowserloadend',function() {
stopReload.textContent = 'R';
});
Related Events
mozbrowserasyncscrollmozbrowserclosemozbrowsercontextmenumozbrowsererrormozbrowsericonchangemozbrowserloadendmozbrowserlocationchangemozbrowseropenwindowmozbrowsersecuritychangemozbrowsershowmodalpromptmozbrowsertitlechangemozbrowserusernameandpasswordrequired