private void evaluateJavascriptToolStripMenuItem_Click(object sender, EventArgs e)
{
LogWriteLine("Request evaluation for [document.body.scrollWidth, document.body.scrollHeight]");
var retval = WebBrowser.EvaluateJavascript("[document.body.scrollWidth,document.body.scrollHeight]", (value, exception) => {
if (value != null)
{
var v0 = value.GetValue(0);
if (v0 == null)
{
// seems to be fixed in 3.2987.3
MessageBox.Show("This test is broken, please refer to issue #65 in the project repo.");
}
else
{
LogWriteLine("Evaluation callback with value: scrollWidth={0}, scrollHeight={1}.",
value.GetValue(0).IntValue, value.GetValue(1).IntValue);
}
}
else if (exception != null)
{
LogWriteLine("Evaluation callback with exception: {0}.", exception.Message);
}
else
{
LogWriteLine("Evaluation callback with value == null && exception == null.");
}
});
if (!retval)
{
LogWriteLine("WebBrowser.EvaluateJavascript returned false, evaluation will not succeed.");
}
}
private void RemoteLayerStressTest()
{
int domCount = 0;
int evalCount = 0;
for (int i = 0; i < 100; ++i)
{
WebBrowser.ExecuteJavascript("document.getElementById('testbutton1').click()");
WebBrowser.ExecuteJavascript("document.getElementById('testbutton2').click()");
WebBrowser.EvaluateJavascript("document.getElementById('testbutton3').click()", (value, exception) => {
LogWriteLine("EVAL {0}: document.getElementById('testbutton3').click() = {1}", ++evalCount, value.StringValue);
});
WebBrowser.ExecuteJavascript("document.getElementById('testbutton4').click()");
WebBrowser.EvaluateJavascript("document.getElementById('testbutton5').click()", (value, exception) => {
LogWriteLine("EVAL {0}: document.getElementById('testbutton5').click() = {1}", ++evalCount, value.StringValue);
});
WebBrowser.ExecuteJavascript("document.getElementById('testbutton6').click()");
WebBrowser.EvaluateJavascript("doubleCallback('foo', 123)", (value, exception) => {
LogWriteLine("EVAL {0}: doubleCallback('foo', 123) = {1}", ++evalCount, value.StringValue);
});
WebBrowser.VisitDom((doc, b) => {
//LogWriteLine("VisitDom {0} {1}", doc.ToString(), b.ToString());
var n = doc.GetElementById("testbutton6");
var bounds = n.ElementBounds;
LogWriteLine("DOM {0} - testbutton6 = {1} ({2}, {3})", ++domCount, n.AsMarkup, bounds.Width, bounds.Height);
// must dispose node, otherwise finalizer crash in the render process.
n.Dispose();
});
//WebBrowser.VisitDom(VisitDOMCallback);
//for(int ii = 0; ii < 100; ++ii)
// VisitDomButton_Click(null, null);
//MessageBox.Show("GC.WaitForPendingFinalizers();");
//GC.Collect();
//GC.WaitForPendingFinalizers();
// give the browser some time to render and do message loop work
//Thread.Sleep(20);
}
}
private void evaluateJavascriptSynchronouslyToolStripMenuItem_Click(object sender, EventArgs e)
{
if (CfxRemoteCallContext.IsInContext && CfrRuntime.CurrentlyOn(CfxThreadId.Renderer))
{
throw new Exception("Doing this on the render thread would deadlock.");
}
var waitLock = new object();
lock (waitLock) {
string documentAllLength = null;
var evaluationStarted = WebBrowser.EvaluateJavascript("'document.all.length = ' + document.all.length",
// Don't invoke, otherwise the ui thread will deadlock!
JSInvokeMode.DontInvoke,
(v, ex) => {
Monitor.Enter(waitLock);
try {
documentAllLength = v.StringValue;
} finally {
Monitor.PulseAll(waitLock);
Monitor.Exit(waitLock);
}
}
);
if (evaluationStarted)
{
var success = Monitor.Wait(waitLock, 5000);
if (success)
{
LogWriteLine("Synchronous evaluation succeeded: {0}", documentAllLength);
}
else
{
LogWriteLine("Evaluation not finished after 5 seconds, giving up.");
}
}
else
{
LogWriteLine("Failed to start evaluation.");
}
}
}
private void RemoteLayerStressTest()
{
for (int i = 0; i < 100; ++i)
{
WebBrowser.ExecuteJavascript("document.getElementById('testbutton1').click()");
WebBrowser.ExecuteJavascript("document.getElementById('testbutton2').click()");
WebBrowser.EvaluateJavascript("document.getElementById('testbutton3').click()", (value, exception) => {
LogWriteLine("document.getElementById('testbutton3').click()");
LogWriteLine(value.StringValue);
});
WebBrowser.ExecuteJavascript("document.getElementById('testbutton4').click()");
WebBrowser.EvaluateJavascript("document.getElementById('testbutton5').click()", (value, exception) => {
LogWriteLine("document.getElementById('testbutton5').click()");
LogWriteLine(value.StringValue);
});
WebBrowser.ExecuteJavascript("document.getElementById('testbutton6').click()");
WebBrowser.EvaluateJavascript("doubleCallback('foo', 123)", (value, exception) => {
LogWriteLine("doubleCallback('foo', 123)");
LogWriteLine(value.StringValue);
});
WebBrowser.VisitDom((doc, b) => {
LogWriteLine("VisitDom {0} {1}", doc.ToString(), b.ToString());
LogWriteLine("testbutton6", doc.GetElementById("testbutton6").AsMarkup);
});
// give the browser some time to render and do message loop work
//Thread.Sleep(20);
}
}
void JSHelloWorldButton_Click(object sender, EventArgs e)
{
WebBrowser.EvaluateJavascript("var test = 10; var result = CfxHelloWorld(test, 'foo'); document.body.innerHTML = result;", HelloWorldResult);
}
