public static void HandleSecondInstanceMessages(DpiAwareWindow window, Action <IEnumerable <string> > handler)
{
HwndSource hwnd = null;
HwndSourceHook hook = (IntPtr handle, int message, IntPtr wParam, IntPtr lParam, ref bool handled) => {
if (message == SecondInstanceMessage)
{
try {
handler(ReceiveSomeData());
window.BringToFront();
} catch (Exception e) {
Logging.Warning("Can’t handle message: " + e);
}
}
return(IntPtr.Zero);
};
RoutedEventHandler[] handlers = { null, null };
// loaded
handlers[0] = (sender, args) => {
window.Loaded -= handlers[0];
try {
hwnd = HwndSource.FromHwnd(new WindowInteropHelper(window).Handle);
if (hwnd == null)
{
Logging.Warning("Can’t add one-instance hook: HwndSource is null");
return;
}
hwnd.AddHook(hook);
window.Unloaded += handlers[1];
} catch (Exception e) {
Logging.Warning("Can’t add one-instance hook: " + e);
hook = null;
}
};
// unloaded
handlers[1] = (sender, args) => {
window.Unloaded -= handlers[1];
try {
hwnd.RemoveHook(hook);
} catch (Exception e) {
Logging.Warning("Can’t remove one-instance hook: " + e);
hook = null;
}
};
if (!window.IsLoaded)
{
window.Loaded += handlers[0];
}
else
{
handlers[0](null, null);
}
}
private static void UnhandledExceptionFancyHandler(Exception e)
{
if (!Application.Current.Windows.OfType <Window>().Any(x => x.IsLoaded && x.IsVisible))
{
throw new Exception();
}
DpiAwareWindow.OnFatalError(e);
}
public FrameworkElement GetElement([CanBeNull] DpiAwareWindow parentWindow)
{
if (_broken)
{
return(new ExceptionDetails {
Title = "Failed to initialize browser engine",
Exception = _exception,
Suggestions = GetBrokenSuggestions()
});
}
return(_something.GetElement(parentWindow, _preferTransparentBackground));
}
public FrameworkElement GetElement(DpiAwareWindow parentWindow, bool preferTransparentBackground)
{
if (_inner == null || _wrapper == null)
{
DisposeHelper.Dispose(ref _inner);
DisposeHelper.Dispose(ref _wrapper);
CefSharpHelper.EnsureInitialized();
_downloadHandler = new DownloadHandler();
_requestHandler = new RequestHandler {
UserAgent = CefSharpHelper.DefaultUserAgent
};
_requestHandler.Inject += OnRequestHandlerInject;
_requestHandler.Headers += OnRequestHandlerHeaders;
_inner = new ChromiumWebBrowser(@"about:blank")
{
BrowserSettings =
{
FileAccessFromFileUrls = CefState.Enabled,
UniversalAccessFromFileUrls = CefState.Enabled,
BackgroundColor = 0xff000000,
// For SRS to work, because IsCSPBypassing somehow doesn’t work!
WebSecurity = CefState.Disabled,
},
DisplayHandler = this,
DownloadHandler = _downloadHandler,
RequestHandler = _requestHandler,
KeyboardHandler = new KeyboardHandler()
// MenuHandler = new MenuHandler(),
// JsDialogHandler = new JsDialogHandler(),
};
_inner.FrameLoadStart += OnFrameLoadStart;
_inner.FrameLoadEnd += OnFrameLoadEnd;
_inner.LoadingStateChanged += OnLoadingStateChanged;
_inner.LoadError += OnLoadError;
_wrapper = new WindowsFormsHost {
Child = _inner
};
}
return(_wrapper);
}
public FrameworkElement GetElement(DpiAwareWindow parentWindow, bool preferTransparentBackground)
{
if (_inner == null)
{
CefSharpHelper.EnsureInitialized();
Initialize(preferTransparentBackground);
if (_inner == null)
{
throw new Exception(@"Initialization failed");
}
}
_zoomLevel = parentWindow?.ScaleX ?? 1d;
if (_zoomLevel > 1d)
{
_inner.LayoutTransform = new ScaleTransform {
ScaleX = 1d / _zoomLevel, ScaleY = 1d / _zoomLevel
};
_inner.SetBinding(FrameworkElement.WidthProperty, new Binding {
Path = new PropertyPath(FrameworkElement.ActualWidthProperty),
Source = _wrapper,
Converter = new MultiplyConverter(),
ConverterParameter = _zoomLevel
});
_inner.SetBinding(FrameworkElement.HeightProperty, new Binding {
Path = new PropertyPath(FrameworkElement.ActualHeightProperty),
Source = _wrapper,
Converter = new MultiplyConverter(),
ConverterParameter = _zoomLevel
});
}
else
{
_inner.LayoutTransform = Transform.Identity;
_inner.ClearValue(FrameworkElement.WidthProperty);
_inner.ClearValue(FrameworkElement.HeightProperty);
}
RenderOptions.SetBitmapScalingMode(_inner, _zoomLevel >= 1d ? BitmapScalingMode.NearestNeighbor : BitmapScalingMode.HighQuality);
return(_wrapper);
}
public FrameworkElement GetElement(DpiAwareWindow parentWindow, bool preferTransparentBackground)
{
if (_wrapper != null)
{
return(_wrapper);
}
WebBrowserHelper.SetUserAgent(DefaultUserAgent);
_inner = new WebBrowser {
ScriptErrorsSuppressed = true
};
_inner.Navigated += OnNavigated;
_inner.Navigating += OnNavigating;
_inner.NewWindow += OnNewWindow;
_inner.DocumentTitleChanged += OnTitleChanged;
_wrapper = new WindowsFormsHost {
Child = _inner
};
return(_wrapper);
}
/// <summary>
/// Initializes a new instance of the <see cref="DpiAwarenessViewModel" /> class.
/// </summary>
public DpiAwarenessViewModel()
{
this.wnd = (DpiAwareWindow)App.Current.MainWindow;
this.wnd.DpiChanged += OnWndDpiChanged;
this.wnd.SizeChanged += OnWndSizeChanged;
}
public FrameworkElement GetElement(DpiAwareWindow parentWindow, bool preferTransparentBackground)
{
if (_inner == null)
{
CefSharpHelper.EnsureInitialized();
_downloadHandler = new DownloadHandler();
_requestHandler = new RequestHandler {
UserAgent = CefSharpHelper.DefaultUserAgent
};
_requestHandler.Inject += OnRequestHandlerInject;
_inner = new ChromiumWebBrowser {
BrowserSettings =
{
FileAccessFromFileUrls = CefState.Enabled,
UniversalAccessFromFileUrls = CefState.Enabled,
BackgroundColor = preferTransparentBackground ? 0U : 0xffffffff,
WindowlessFrameRate = SettingsHolder.Plugins.Cef60Fps ? 60 : 30,
WebGl = CefState.Disabled,
Plugins = CefState.Disabled,
// For SRS to work, because IsCSPBypassing somehow doesn’t work!
WebSecurity = CefState.Disabled,
},
DisplayHandler = this,
DownloadHandler = _downloadHandler,
RequestHandler = _requestHandler,
MenuHandler = new MenuHandler(),
JsDialogHandler = new JsDialogHandler(),
KeyboardHandler = new KeyboardHandler(),
Background = new SolidColorBrush(preferTransparentBackground ? Colors.Transparent : Colors.White),
};
RenderOptions.SetBitmapScalingMode(_inner, BitmapScalingMode.NearestNeighbor);
_inner.FrameLoadStart += OnFrameLoadStart;
_inner.FrameLoadEnd += OnFrameLoadEnd;
_inner.LoadingStateChanged += OnLoadingStateChanged;
_inner.LoadError += OnLoadError;
_wrapper = new Border {
Child = _inner
};
}
_zoomLevel = parentWindow?.ScaleX ?? 1d;
if (_zoomLevel > 1d)
{
_inner.LayoutTransform = new ScaleTransform {
ScaleX = 1d / _zoomLevel, ScaleY = 1d / _zoomLevel
};
_inner.SetBinding(FrameworkElement.WidthProperty, new Binding {
Path = new PropertyPath(FrameworkElement.ActualWidthProperty),
Source = _wrapper,
Converter = new MultiplyConverter(),
ConverterParameter = _zoomLevel
});
_inner.SetBinding(FrameworkElement.HeightProperty, new Binding {
Path = new PropertyPath(FrameworkElement.ActualHeightProperty),
Source = _wrapper,
Converter = new MultiplyConverter(),
ConverterParameter = _zoomLevel
});
}
else
{
_inner.LayoutTransform = Transform.Identity;
_inner.ClearValue(FrameworkElement.WidthProperty);
_inner.ClearValue(FrameworkElement.HeightProperty);
}
RenderOptions.SetBitmapScalingMode(_inner, _zoomLevel >= 1d ? BitmapScalingMode.NearestNeighbor : BitmapScalingMode.HighQuality);
return(_wrapper);
}
protected sealed override void GoToNormalMode()
{
if (OptionAttachedToolsVerboseMode)
{
Logging.Debug("Switching to normal mode…");
}
_switchingInProgress = true;
try {
if (AppearanceManager.Instance.PreferFullscreenMode)
{
var screen = DpiAwareWindow.GetPreferredDeviceScreen();
Form.Width = screen.Bounds.Width;
Form.Height = screen.Bounds.Height;
Form.Top = screen.Bounds.Top;
Form.Left = screen.Bounds.Left;
FullscreenEnabled = true;
}
else
{
var size = ValuesStorage.Get(KeyNormalSize, default(Point));
var pos = ValuesStorage.Get(KeyNormalPos, default(Point));
if (size.X > 0 && size.Y > 0)
{
var savedScreen = pos != default(Point) ? Screen.FromPoint(new System.Drawing.Point(
(int)(pos.X + size.X / 2), (int)(pos.Y + size.Y / 2))) : DpiAwareWindow.GetPreferredDeviceScreen();
var activeScreen = DpiAwareWindow.GetForcedDeviceScreen();
if (activeScreen != null && savedScreen.Bounds != activeScreen.Bounds)
{
SetDefaultLocation();
}
else
{
Form.Width = size.X.RoundToInt().Clamp(320, savedScreen.Bounds.Width);
Form.Height = size.Y.RoundToInt().Clamp(200, savedScreen.Bounds.Height);
Form.Top = pos.Y.RoundToInt().Clamp(savedScreen.Bounds.Top, savedScreen.Bounds.Bottom - Form.Height);
Form.Left = pos.X.RoundToInt().Clamp(savedScreen.Bounds.Left, savedScreen.Bounds.Right - Form.Width);
}
}
else
{
SetDefaultLocation();
}
if (_lastVisibleTools.HasValue)
{
_helper.Visible = _lastVisibleTools.Value;
}
FullscreenEnabled = ValuesStorage.Get(KeyNormalFullscreen, false);
}
void SetDefaultLocation()
{
var screen = DpiAwareWindow.GetPreferredDeviceScreen();
Form.Width = 1600.Clamp(320, screen.Bounds.Width);
Form.Height = 900.Clamp(200, screen.Bounds.Height);
Form.Top = screen.Bounds.Top + (screen.Bounds.Height - Form.Height) / 2;
Form.Left = screen.Bounds.Left + (screen.Bounds.Width - Form.Width) / 2;
}
UpdateSize();
} finally {
_switchingInProgress = false;
}
if (OptionAttachedToolsVerboseMode)
{
Logging.Here();
}
}
private Rectangle GetScreenBounds()
{
return((Form.Visible ? Screen.FromControl(Form) : DpiAwareWindow.GetPreferredDeviceScreen()).Bounds);
}
/// <summary>
/// Initializes a new instance of the <see cref="DpiAwarenessViewModel" /> class.
/// </summary>
public DpiAwarenessViewModel()
{
wnd = (DpiAwareWindow)Application.Current.MainWindow;
wnd.DpiChanged += OnWndDpiChanged;
wnd.SizeChanged += OnWndSizeChanged;
}
