protected void OnItemChange(BrowserNative.ChangeType type, string arg1)
{
//Debug.Log("ChangeType " + name + " " + type + " arg " + arg1 + " loaded " + IsLoaded);
switch (type)
{
case BrowserNative.ChangeType.CHT_CURSOR:
UpdateCursor();
break;
case BrowserNative.ChangeType.CHT_BROWSER_CLOSE:
//handled directly on the calling thread, nothing to do here
break;
case BrowserNative.ChangeType.CHT_FETCH_FINISHED:
onFetch(JSONNode.Parse(arg1));
break;
case BrowserNative.ChangeType.CHT_FETCH_FAILED:
onFetchError(JSONNode.Parse(arg1));
break;
case BrowserNative.ChangeType.CHT_LOAD_FINISHED:
if (skipNextLoad)
{
//deal with extra step we have to do to load HTML to an empty page
skipNextLoad = false;
return;
}
loadPending = false;
if (onloadActions.Count != 0)
{
foreach (var action in onloadActions)
{
action();
}
onloadActions.Clear();
}
onLoad(JSONNode.Parse(arg1));
break;
case BrowserNative.ChangeType.CHT_CERT_ERROR:
onCertError(JSONNode.Parse(arg1));
break;
case BrowserNative.ChangeType.CHT_SAD_TAB:
onSadTab();
break;
}
}
private static void CB_ChangeFunc(int browserId, BrowserNative.ChangeType changeType, string arg1)
{
//Note: we may have been Object.Destroy'd at this point, so guard against that.
//That means we can't trust that `browser == null` means we don't have a browser, we may have an object that
//is destroyed, but not actually null.
Browser browser;
lock (allBrowsers) {
if (!allBrowsers.TryGetValue(browserId, out browser))
{
return;
}
}
if (changeType == BrowserNative.ChangeType.CHT_BROWSER_CLOSE)
{
//We can't continue if the browser is closed, so goodbye.
//At this point, we may or may not be destroyed, but if not, become destroyed.
//Debug.Log("Got close notification for " + unsafeBrowserId);
if (browser)
{
//Need to be destroyed.
lock (browser.thingsToDo) browser.thingsToDo.Add(() => {
Destroy(browser.gameObject);
});
}
else
{
//If we are (Unity) destroyed, we won't get another update, so we can't rely on thingsToDo
//That said, there's not anything else for us to do but step out of allThingsToRemember.
}
//The native side has acknowledged it's done, now we can finally let the native trampolines be GC'd
lock (allThingsToRemember) allThingsToRemember.Remove(browser.unsafeBrowserId);
//Now that we know we can allow ourselves to be GC'd and destroyed (without leaking to allThingsToRemember)
//go ahead and allow it. (And we won't get any more native callbacks at this point.)
lock (allBrowsers) allBrowsers.Remove(browserId);
//Just in case someone tries to call something, make sure CheckSanity and such fail.
browser.browserId = 0;
}
else if (browser)
{
lock (browser.thingsToDo) browser.thingsToDo.Add(() => browser.OnItemChange(changeType, arg1));
}
}
