Invalid or unexpected MouseEvent object

Question

I am trying to send Mouse Event to my Offscreen Tab and I received following error:

Error during experimental.offscreenTabs.sendMouseEvent:
 Invalid or unexpected MouseEvent object

My Code:

chrome.experimental.offscreenTabs.sendMouseEvent(tab.id, {
    "type": "click",
    "altKey": false,
    "ctrlKey": false,
    "shiftKey": false
}, {
    "x": 10,
    "y": 10
}, function () {
    console.log("Mouse Event Sent");
});

Any Suggestions?

score 1 · Accepted Answer · answered Dec 03 '12 at 19:15

1

You need to add a button key as well if you use a mouse event.

{
    "type": "click",
    "button": 1,      // 0 = left, 1 = middle, 2 = right
    "altKey": false,
    "ctrlKey": false,
    "shiftKey": false
}

Since the API is experimental, and the documentation is not quite complete, I looked in the source code:

chromium/src/chrome/browser/extensions/api/offscreen_tabs/offscreen_tabs_api.cc (implementation of the offscreenTabs API)
chromium/src/third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h (for definitions of the "button" constants).

PS. I managed to get a Developer tools instance when I used button: 2. Quite useful for debugging interaction with an offscreen tab!

answered Dec 03 '12 at 19:15

Rob W

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Thanks it solved, BTW how did you get developers tools instance to a offscreen tab ? :) did you use Debugger API()'s ? – Sudarshan Dec 04 '12 at 03:24
@Sudarshan No, button=2 opens a contextmenu here (Chrome 23 / ArchLinux). There, I choose "Inspect element". – Rob W Dec 04 '12 at 13:17
I took a complete different meaning for `I managed to get a Developer tools instance when I used button: 2. Quite useful for debugging interaction with an offscreen tab!` :), my bad.. i got it .. thanks :) – Sudarshan Dec 04 '12 at 13:25

Invalid or unexpected MouseEvent object

1 Answers1