/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
// Don't reference event listeners any longer:
AddressChanged = null;
BrowserInitialized = null;
ConsoleMessage = null;
FrameLoadEnd = null;
FrameLoadStart = null;
LoadError = null;
LoadingStateChanged = null;
Paint = null;
StatusMessage = null;
TitleChanged = null;
Cef.RemoveDisposable(this);
if (disposing)
{
browser = null;
IsBrowserInitialized = false;
if (managedCefBrowserAdapter != null)
{
if (!managedCefBrowserAdapter.IsDisposed)
{
managedCefBrowserAdapter.Dispose();
}
managedCefBrowserAdapter = null;
}
}
// Release reference to handlers, make sure this is done after we dispose managedCefBrowserAdapter
// otherwise the ILifeSpanHandler.DoClose will not be invoked. (More important in the WinForms version,
// we do it here for consistency)
this.SetHandlersToNull();
}
protected virtual void Dispose(bool isdisposing)
{
//Check if alreadty disposed
if (Interlocked.Increment(ref disposeCount) == 1)
{
// No longer reference event listeners:
ConsoleMessage = null;
FrameLoadStart = null;
FrameLoadEnd = null;
LoadError = null;
LoadingStateChanged = null;
Rendering = null;
// No longer reference handlers:
this.SetHandlersToNull();
if (isdisposing)
{
if (BrowserSettings != null)
{
BrowserSettings.Dispose();
BrowserSettings = null;
}
PresentationSource.RemoveSourceChangedHandler(this, PresentationSourceChangedHandler);
// Release internal event listeners:
Loaded -= OnLoaded;
GotKeyboardFocus -= OnGotKeyboardFocus;
LostKeyboardFocus -= OnLostKeyboardFocus;
// Release internal event listeners for Drag Drop events:
DragEnter -= OnDragEnter;
DragOver -= OnDragOver;
DragLeave -= OnDragLeave;
Drop -= OnDrop;
IsVisibleChanged -= OnIsVisibleChanged;
if (tooltipTimer != null)
{
tooltipTimer.Tick -= OnTooltipTimerTick;
}
if (CleanupElement != null)
{
CleanupElement.Unloaded -= OnCleanupElementUnloaded;
}
if (managedCefBrowserAdapter != null)
{
managedCefBrowserAdapter.Dispose();
managedCefBrowserAdapter = null;
}
foreach (var disposable in disposables)
{
disposable.Dispose();
}
disposables.Clear();
UiThreadRunAsync(() => WebBrowser = null);
}
Cef.RemoveDisposable(this);
RemoveSourceHook();
}
}
