| // Copyright 2016-present the Material Components for iOS authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #import <UIKit/UIKit.h> |
| |
| /** |
| Subclasses UIWindow to allow overlays to cover all content. |
| |
| Overlays will be the full size of the screen, or when multitasking use all available screen space, |
| and will be rotated as appropriate based on device orientation. For performance, owners of overlay |
| views should set the @c hidden property to YES when the overlay is not in use. |
| */ |
| @interface MDCOverlayWindow : UIWindow |
| |
| /** |
| Notifies the window that the given overlay view should be shown. |
| |
| Overlay owners must call this method to ensure that the overlay is actually displayed over the |
| window's primary content. |
| |
| @param overlay The overlay being displayed. |
| @param level The UIWindowLevel to display the overlay on. |
| */ |
| - (void)activateOverlay:(UIView *)overlay withLevel:(UIWindowLevel)level; |
| |
| /** |
| Notifies the window that the given overlay is no longer active. |
| |
| Overlay owners should still hide their overlay before calling this method. |
| |
| @param overlay The overlay being displayed. |
| */ |
| - (void)deactivateOverlay:(UIView *)overlay; |
| |
| @end |
