private void InternalDispose(bool disposing)
{
if (disposing)
{
Interlocked.Exchange(ref browserInitialized, 0);
CanExecuteJavascriptInMainFrame = false;
// Don't maintain a reference to event listeners anylonger:
AddressChanged = null;
ConsoleMessage = null;
FrameLoadEnd = null;
FrameLoadStart = null;
IsBrowserInitializedChanged = null;
LoadError = null;
LoadingStateChanged = null;
StatusMessage = null;
TitleChanged = null;
JavascriptMessageReceived = null;
// Release reference to handlers, except LifeSpanHandler which is done after Disposing
// ManagedCefBrowserAdapter otherwise the ILifeSpanHandler.DoClose will not be invoked.
// We also leave FocusHandler and override with a NoFocusHandler implementation as
// it so we can block taking Focus (we're dispoing afterall). Issue #3715
FreeHandlersExceptLifeSpanAndFocus();
FocusHandler = new NoFocusHandler();
browser = null;
if (parentFormMessageInterceptor != null)
{
parentFormMessageInterceptor.Dispose();
parentFormMessageInterceptor = null;
}
if (managedCefBrowserAdapter != null)
{
managedCefBrowserAdapter.Dispose();
managedCefBrowserAdapter = null;
}
//Dispose of BrowserSettings if we created it, if user created then they're responsible
if (browserSettings != null && browserSettings.AutoDispose)
{
browserSettings.Dispose();
}
browserSettings = null;
parkingControl?.Dispose();
parkingControl = null;
// LifeSpanHandler is set to null after managedCefBrowserAdapter.Dispose so ILifeSpanHandler.DoClose
// is called.
LifeSpanHandler = null;
}
Cef.RemoveDisposable(this);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources for the <see cref="ChromiumWebBrowser"/>
/// </summary>
/// <param name="disposing"><see langword="true" /> to release both managed and unmanaged resources; <see langword="false" /> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
// Attempt to move the disposeSignaled state from 0 to 1. If successful, we can be assured that
// this thread is the first thread to do so, and can safely dispose of the object.
if (Interlocked.CompareExchange(ref disposeSignaled, 1, 0) != 0)
{
return;
}
if (disposing)
{
CanExecuteJavascriptInMainFrame = false;
Interlocked.Exchange(ref browserInitialized, 0);
// Don't reference event listeners any longer:
AddressChanged = null;
BrowserInitialized = null;
ConsoleMessage = null;
FrameLoadEnd = null;
FrameLoadStart = null;
LoadError = null;
LoadingStateChanged = null;
Paint = null;
AfterPaint = null;
StatusMessage = null;
TitleChanged = null;
JavascriptMessageReceived = null;
// Release reference to handlers, except LifeSpanHandler which is done after Disposing
// ManagedCefBrowserAdapter otherwise the ILifeSpanHandler.DoClose will not be invoked.
// We also leave FocusHandler and override with a NoFocusHandler implementation as
// it so we can block taking Focus (we're dispoing afterall). Issue #3715
FreeHandlersExceptLifeSpanAndFocus();
FocusHandler = new NoFocusHandler();
browser = null;
BrowserCore = null;
if (managedCefBrowserAdapter != null)
{
managedCefBrowserAdapter.Dispose();
managedCefBrowserAdapter = null;
}
// LifeSpanHandler is set to null after managedCefBrowserAdapter.Dispose so ILifeSpanHandler.DoClose
// is called.
LifeSpanHandler = null;
}
Cef.RemoveDisposable(this);
}
public void Dispose()
{
BrowserAdapter.Dispose();
}
