private void CheckSelf(cef_frame_handler_t *self)
{
if (_self != self)
{
throw ExceptionBuilder.InvalidSelfReference();
}
}
protected virtual void Dispose(bool disposing)
{
if (_self != null)
{
cef_frame_handler_t.Free(_self);
_self = null;
}
}
private void on_frame_attached(cef_frame_handler_t *self, cef_browser_t *browser, cef_frame_t *frame, int reattached)
{
CheckSelf(self);
var mBrowser = CefBrowser.FromNative(browser);
var mFrame = CefFrame.FromNative(frame);
OnFrameAttached(mBrowser, mFrame, reattached != 0);
}
private void on_frame_created(cef_frame_handler_t *self, cef_browser_t *browser, cef_frame_t *frame)
{
CheckSelf(self);
var mBrowser = CefBrowser.FromNative(browser);
var mFrame = CefFrame.FromNative(frame);
OnFrameCreated(mBrowser, mFrame);
}
private void on_main_frame_changed(cef_frame_handler_t *self, cef_browser_t *browser, cef_frame_t *old_frame, cef_frame_t *new_frame)
{
CheckSelf(self);
var mBrowser = CefBrowser.FromNative(browser);
var mOldFrame = CefFrame.FromNativeOrNull(old_frame);
var mNewFrame = CefFrame.FromNativeOrNull(new_frame);
OnMainFrameChanged(mBrowser, mOldFrame, mNewFrame);
}
private void add_ref(cef_frame_handler_t *self)
{
lock (SyncRoot)
{
var result = ++_refct;
if (result == 1)
{
lock (_roots) { _roots.Add((IntPtr)_self, this); }
}
}
}
private static unsafe void OnFrameDetachedImpl(cef_frame_handler_t *self, cef_browser_t *browser, cef_frame_t *frame)
{
var instance = GetInstance((IntPtr)self) as CefFrameHandler;
if (instance == null || ((ICefFrameHandlerPrivate)instance).AvoidOnFrameDetached())
{
ReleaseIfNonNull((cef_base_ref_counted_t *)browser);
ReleaseIfNonNull((cef_base_ref_counted_t *)frame);
return;
}
instance.OnFrameDetached(CefBrowser.Wrap(CefBrowser.Create, browser), CefFrame.Wrap(CefFrame.Create, frame));
}
private int release(cef_frame_handler_t *self)
{
lock (SyncRoot)
{
var result = --_refct;
if (result == 0)
{
lock (_roots) { _roots.Remove((IntPtr)_self); }
return(1);
}
return(0);
}
}
public CefFrameHandler()
{
cef_frame_handler_t *self = this.NativeInstance;
#if NET_LESS_5_0
self->on_frame_created = (void *)Marshal.GetFunctionPointerForDelegate(fnOnFrameCreated);
self->on_frame_attached = (void *)Marshal.GetFunctionPointerForDelegate(fnOnFrameAttached);
self->on_frame_detached = (void *)Marshal.GetFunctionPointerForDelegate(fnOnFrameDetached);
self->on_main_frame_changed = (void *)Marshal.GetFunctionPointerForDelegate(fnOnMainFrameChanged);
#else
self->on_frame_created = (delegate * unmanaged[Stdcall] < cef_frame_handler_t *, cef_browser_t *, cef_frame_t *, void >) & OnFrameCreatedImpl;
self->on_frame_attached = (delegate * unmanaged[Stdcall] < cef_frame_handler_t *, cef_browser_t *, cef_frame_t *, void >) & OnFrameAttachedImpl;
self->on_frame_detached = (delegate * unmanaged[Stdcall] < cef_frame_handler_t *, cef_browser_t *, cef_frame_t *, void >) & OnFrameDetachedImpl;
self->on_main_frame_changed = (delegate * unmanaged[Stdcall] < cef_frame_handler_t *, cef_browser_t *, cef_frame_t *, cef_frame_t *, void >) & OnMainFrameChangedImpl;
#endif
}
protected CefFrameHandler()
{
_self = cef_frame_handler_t.Alloc();
_ds0 = new cef_frame_handler_t.add_ref_delegate(add_ref);
_self->_base._add_ref = Marshal.GetFunctionPointerForDelegate(_ds0);
_ds1 = new cef_frame_handler_t.release_delegate(release);
_self->_base._release = Marshal.GetFunctionPointerForDelegate(_ds1);
_ds2 = new cef_frame_handler_t.has_one_ref_delegate(has_one_ref);
_self->_base._has_one_ref = Marshal.GetFunctionPointerForDelegate(_ds2);
_ds3 = new cef_frame_handler_t.has_at_least_one_ref_delegate(has_at_least_one_ref);
_self->_base._has_at_least_one_ref = Marshal.GetFunctionPointerForDelegate(_ds3);
_ds4 = new cef_frame_handler_t.on_frame_created_delegate(on_frame_created);
_self->_on_frame_created = Marshal.GetFunctionPointerForDelegate(_ds4);
_ds5 = new cef_frame_handler_t.on_frame_attached_delegate(on_frame_attached);
_self->_on_frame_attached = Marshal.GetFunctionPointerForDelegate(_ds5);
_ds6 = new cef_frame_handler_t.on_frame_detached_delegate(on_frame_detached);
_self->_on_frame_detached = Marshal.GetFunctionPointerForDelegate(_ds6);
_ds7 = new cef_frame_handler_t.on_main_frame_changed_delegate(on_main_frame_changed);
_self->_on_main_frame_changed = Marshal.GetFunctionPointerForDelegate(_ds7);
}
public CefFrameHandler(cef_frame_handler_t *instance)
: base((cef_base_ref_counted_t *)instance)
{
}
internal static void Free(cef_frame_handler_t *ptr)
{
Marshal.FreeHGlobal((IntPtr)ptr);
}
private int has_at_least_one_ref(cef_frame_handler_t *self)
{
lock (SyncRoot) { return(_refct != 0 ? 1 : 0); }
}
private int has_one_ref(cef_frame_handler_t *self)
{
lock (SyncRoot) { return(_refct == 1 ? 1 : 0); }
}