Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The mozbrowsershowmodalprompt event is fired when the content of a browser <iframe> calls the window.alert(), window.confirm(), or window.prompt() methods.
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 |
Whether the event normally bubbles or not |
cancelable Read only |
Boolean |
Whether the event is cancellable or not? |
details Read only |
Object |
A custom object |
details
The details property is an anonymous JavaScript object with the following properties:
- promptType
- A
DOMStringdefining the type of the prompt. It can bealert,confirm, orprompt. - title
- A
DOMStringrepresenting the title of the prompt. - message
- A
DOMStringrepresenting the value passed to thewindow.alert(),window.confirm(), orwindow.prompt()methods within the browser<iframe>'s content. - returnValue
- A
DOMStringrepresenting the return value for thewindow.prompt()methods. This should be set by the embedder. - unblock()
- A function to be called when the
iframeis unblocked. Note that if the embedder callspreventDefault()on this event, theiframeis blocked untilunblock()is called.
Obsolete properties of details
- msg_name
- A string representing the type of message. For that event, it's always
showmodalprompt. - initialValue
- A string representing the initial value for the
window.prompt()methods.
Example
var browser = document.querySelector("iframe");
browser.addEventListener("mozbrowsershowmodalprompt", function( event ) {
console.log("Asking for prompt:" + JSON.stringify(event.detail));
});
Related Events
mozbrowserasyncscrollmozbrowserclosemozbrowsercontextmenumozbrowsererrormozbrowsericonchangemozbrowserloadendmozbrowserloadstartmozbrowserlocationchangemozbrowseropenwindowmozbrowsersecuritychangemozbrowsertitlechangemozbrowserusernameandpasswordrequired