WatiN FireEvent not passing event properties in FireFox

问题

This had been logged as a bug in sourceforge though now deleted.

I'm using FireFox 3.6 with associated jssh.

I can see in Firebug that the Event Properties are not being set. I'm trying to drag and drop with code below

var mouseDownEvent = new NameValueCollection 
                         {{"button", "1"}, {"clientX", "0"}, {"clientY", "0"}};
firstStoryRow.FireEventNoWait("onmousedown", mouseDownEvent);

There are workarounds for passing these properties but not they're not nice.

Does anyone know if this is an genuine limitation within WatiN or something I'm doing wrong?

回答1:

This is indeed a shortcoming in the FireFox implementation. All the given parameters/values are ignored for mouse events. This should be fixed and is not that hard. I will reopen the issue on SourceForge.

To make this work you could run this code, which is what WatiN is actually doing for you:

var jscriptref = firstStoryRow.GetJavascriptElementReference();

var fireeventcode = string.Format("var event = {0}.ownerDocument.createEvent('MouseEvents');",jscriptref);

// Params for the initMouseEvent:
// 'type', bubbles, cancelable, windowObject, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget )
fireeventcode += "event.initMouseEvent('mousedown', true, true, null, 0, 0, 0, 0, 0, false, false, false, false, 1, null);";
fireeventcode += string.Format("var res = {0}.dispatchEvent(event);", jscriptref);
fireeventcode += "if(res){true;}else{false;};";

// make it a NoWait call by wrapping it in a timer call.
fireeventcode = JSUtils.WrapCommandInTimer(fireeventcode);

var result = browser.Eval(fireeventcode);

If result == 'true' all went well. Hope this will help for now, but this needs to be fixed in the next release.

Jeroen

来源：https://stackoverflow.com/questions/4990905/watin-fireevent-not-passing-event-properties-in-firefox