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FlutterOverlayView.mm
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #import "flutter/shell/platform/darwin/ios/framework/Source/FlutterOverlayView.h"
6
7 #include "flutter/common/settings.h"
8 #include "flutter/common/task_runners.h"
9 #include "flutter/flow/layers/layer_tree.h"
10 #include "flutter/fml/platform/darwin/cf_utils.h"
11 #include "flutter/fml/synchronization/waitable_event.h"
12 #include "flutter/fml/trace_event.h"
13 #include "flutter/shell/common/platform_view.h"
14 #include "flutter/shell/common/rasterizer.h"
15 #import "flutter/shell/platform/darwin/ios/framework/Source/FlutterView.h"
16 #import "flutter/shell/platform/darwin/ios/ios_surface_software.h"
17 #include "third_party/skia/include/utils/mac/SkCGUtils.h"
18
19 // This is mostly a duplication of FlutterView.
20 // TODO(amirh): once GL support is in evaluate if we can merge this with FlutterView.
21 @implementation FlutterOverlayView
22
23 - (instancetype)initWithFrame:(CGRect)frame {
24 NSAssert(NO, @"FlutterOverlayView must init or initWithContentsScale");
25 return nil;
26 }
27
28 - (instancetype)initWithCoder:(NSCoder*)aDecoder {
29 NSAssert(NO, @"FlutterOverlayView must init or initWithContentsScale");
30 return nil;
31 }
32
33 - (instancetype)init {
34 self = [super initWithFrame:CGRectZero];
35
36 if (self) {
37 self.layer.opaque = NO;
38 self.userInteractionEnabled = NO;
39 self.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
40 }
41
42 return self;
43 }
44
45 - (instancetype)initWithContentsScale:(CGFloat)contentsScale {
46 self = [self init];
47
48 if ([self.layer isKindOfClass:NSClassFromString(@"CAMetalLayer")]) {
49 self.layer.allowsGroupOpacity = NO;
50 self.layer.contentsScale = contentsScale;
51 self.layer.rasterizationScale = contentsScale;
52 }
53
54 return self;
55 }
56
57 + (Class)layerClass {
58 return [FlutterView layerClass];
59 }
60
61 // TODO(amirh): implement drawLayer to support snapshotting.
62
63 @end
initWithFrame
instancetype initWithFrame
Definition: FlutterTextInputPlugin.h:164
ios_surface_software.h
FlutterOverlayView.h
initWithCoder
instancetype initWithCoder
Definition: FlutterTextInputPlugin.h:163
FlutterOverlayView
Definition: FlutterOverlayView.h:29
FlutterView
Definition: FlutterView.h:38
FlutterView.h