Closed
Description
Add LifeSpanHandler implementation capable of hosting popups as Tabs/Controls
- Similar to Doc - Clarify LifeSpanHandler.OnBeforePopup return true behaviour #3847
- Based on https://github.com/cefsharp/CefSharp/blob/master/CefSharp.Wpf.Example/Handlers/ExperimentalLifespanHandler.cs
There are still some CEF bugs that mean this is still classed as experimental. One such issue was reported at #3847 (comment)
It's important to remember that only bugs in CefSharp can be fixed directly in this repository, CEF has it's own issue tracker at https://bitbucket.org/chromiumembedded/cef
- Update Wiki
- Further testing
Example:
// Open popup (browser) in a new WPF Window
// Can be used to host in TabControl/ContentControl/etc
browser.LifeSpanHandler = CefSharp.Wpf.Experimental.LifeSpanHandler
.Create()
.OnPopupCreated((ctrl, targetUrl, targetFrameName, windowInfo) =>
{
var windowX = (windowInfo.X == int.MinValue) ? double.NaN : windowInfo.X;
var windowY = (windowInfo.Y == int.MinValue) ? double.NaN : windowInfo.Y;
var windowWidth = (windowInfo.Width == int.MinValue) ? double.NaN : windowInfo.Width;
var windowHeight = (windowInfo.Height == int.MinValue) ? double.NaN : windowInfo.Height;
var popup = new System.Windows.Window
{
Left = windowX,
Top = windowY,
Width = windowWidth,
Height = windowHeight,
Content = ctrl,
Owner = Window.GetWindow(browser),
Title = targetFrameName
};
popup.Closed += (o, e) =>
{
var w = o as System.Windows.Window;
if (w != null && w.Content is IWebBrowser)
{
(w.Content as IWebBrowser)?.Dispose();
w.Content = null;
}
};
})
.OnPopupBrowserCreated((ctrl, browser) =>
{
ctrl.Dispatcher.Invoke(() =>
{
var owner = System.Windows.Window.GetWindow(ctrl);
if (owner != null && owner.Content == ctrl)
{
owner.Show();
}
});
})
.OnPopupDestroyed((ctrl, popupBrowser) =>
{
//If browser is disposed then we don't need to remove the tab
if (!ctrl.IsDisposed)
{
var owner = System.Windows.Window.GetWindow(ctrl);
if (owner != null && owner.Content == ctrl)
{
owner.Close();
}
}
}).Build();