public static void DisposeAllChildWebBrowserControls(IWindowForm ownerForm)
{
//dispose all web browser (child) windows inside this window form
List <MyCefBrowser> foundList;
if (registerTopWindowForms.TryGetValue(ownerForm, out foundList))
{
//remove webbrowser controls
for (int i = foundList.Count - 1; i >= 0; --i)
{
MyCefBrowser mycefBw = foundList[i];
IWindowControl wb = mycefBw.ParentControl;
mycefBw.NotifyCloseBw();
//---------------------------------------
var parent = wb.GetParent();
parent.RemoveChild(wb);
//this Dispose() will terminate cef_life_time_handle ***
//after native side dispose the wb control
//it will raise event BrowserDisposed
wb.Dispose();
//---------------------------------------
}
registerTopWindowForms.Remove(ownerForm);
}
}
void InitWebBrowserControl()
{
//---------
//create timer for notify when browser is ready
var bwReadyTimer = new Timer();
bwReadyTimer.Interval = 50;//ms
bwReadyTimer.Tick += (s, e1) =>
{
if (this.IsHandleCreated && this.Agent.IsBrowserCreated)
{
bwReadyTimer.Enabled = false;//stop timer
if (cefBrowser != null)
{
cefBrowser.SetSize(this.Width, this.Height);
}
if (BrowserReady != null)
{
BrowserReady(this, EventArgs.Empty);
}
bwReadyTimer.Dispose();
bwReadyTimer = null;
}
};
bwReadyTimer.Enabled = true;
//---------
//create cef browser when handle is created
this.cefBrowser = new MyCefBrowser(thisWindowControl, 0, 0, 800, 500, "about:blank", false);
}
void TmClosingCheck_Tick(object sender, EventArgs e)
{
if (MyCefBrowser.IsReadyToClose(this))
{
tmClosingCheck.Enabled = false;
form.Close();
//we not dispose here
}
}
static void cefBrowserControl_Disposed(object sender, EventArgs e)
{
//web browser control is dispose
MyCefBrowser wb = (MyCefBrowser)sender;
List <MyCefBrowser> wblist;
IWindowForm winHandle = wb.ParentForm;
if (registerTopWindowForms.TryGetValue(winHandle, out wblist))
{
lock (sync_remove)
{
wblist.Remove(wb);
}
}
}
static void RegisterCefWbControl(MyCefBrowser cefWb)
{
// get top level of this cef browser control
var ownerForm = (IWindowForm)cefWb.ParentControl.GetTopLevelControl();
List <MyCefBrowser> foundList;
if (!registerTopWindowForms.TryGetValue(ownerForm, out foundList))
{
foundList = new List <MyCefBrowser>();
registerTopWindowForms.Add(ownerForm, foundList);
}
if (!foundList.Contains(cefWb))
{
foundList.Add(cefWb);
cefWb.BrowserDisposed += new EventHandler(cefBrowserControl_Disposed);
}
}
private void Form_FormClosing(object sender, FormClosingEventArgs e)
{
bool closing = false;
lock (closingLock)
{
closing = startClosing;
startClosing = true;
}
if (!closing)
{
//this is 1st time we start close
startClosing = closing = true;
e.Cancel = true;
formHandle = form.Handle;
MyCefBrowser.DisposeAllChildWebBrowserControls(this);
tmClosingCheck.Enabled = true;
}
}
static void cefBrowserControl_Disposed(object sender, EventArgs e)
{
//web browser control is disposed
//TODO: review here
MyCefBrowser wb = sender as MyCefBrowser;
if (wb != null)
{
IWindowForm winHandle = wb.ParentForm;
List <MyCefBrowser> wblist;
if (registerTopWindowForms.TryGetValue(winHandle, out wblist))
{
lock (sync_remove)
{
wblist.Remove(wb);
}
}
}
else
{
throw new NotSupportedException();
}
}
public MyCefBwHandler(MyCefBrowser owner)
{
this._ownerBrowser = owner;
}
