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FlutterPlatformViews_Internal.h
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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 #ifndef FLUTTER_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_FLUTTERPLATFORMVIEWS_INTERNAL_H_
6 #define FLUTTER_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_FLUTTERPLATFORMVIEWS_INTERNAL_H_
7
8 #import "flutter/shell/platform/darwin/ios/framework/Headers/FlutterPlatformViews.h"
9
10 #include <Metal/Metal.h>
11
12 #include "flutter/flow/surface.h"
13 #include "flutter/fml/memory/weak_ptr.h"
14 #include "flutter/fml/platform/darwin/scoped_nsobject.h"
15 #include "flutter/fml/trace_event.h"
16 #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterChannels.h"
17 #import "flutter/shell/platform/darwin/ios/framework/Headers/FlutterPlugin.h"
18 #import "flutter/shell/platform/darwin/ios/framework/Source/FlutterViewResponder.h"
19 #import "flutter/shell/platform/darwin/ios/ios_context.h"
20
21 @class FlutterTouchInterceptingView;
22
23 // A UIView that acts as a clipping mask for the |ChildClippingView|.
24 //
25 // On the [UIView drawRect:] method, this view performs a series of clipping operations and sets the
26 // alpha channel to the final resulting area to be 1; it also sets the "clipped out" area's alpha
27 // channel to be 0.
28 //
29 // When a UIView sets a |FlutterClippingMaskView| as its `maskView`, the alpha channel of the UIView
30 // is replaced with the alpha channel of the |FlutterClippingMaskView|.
31 @interface FlutterClippingMaskView : UIView
32
33 - (instancetype)initWithFrame:(CGRect)frame screenScale:(CGFloat)screenScale;
34
35 - (void)reset;
36
37 // Adds a clip rect operation to the queue.
38 //
39 // The `clipSkRect` is transformed with the `matrix` before adding to the queue.
40 - (void)clipRect:(const SkRect&)clipSkRect matrix:(const SkMatrix&)matrix;
41
42 // Adds a clip rrect operation to the queue.
43 //
44 // The `clipSkRRect` is transformed with the `matrix` before adding to the queue.
45 - (void)clipRRect:(const SkRRect&)clipSkRRect matrix:(const SkMatrix&)matrix;
46
47 // Adds a clip path operation to the queue.
48 //
49 // The `path` is transformed with the `matrix` before adding to the queue.
50 - (void)clipPath:(const SkPath&)path matrix:(const SkMatrix&)matrix;
51
52 @end
53
54 // A pool that provides |FlutterClippingMaskView|s.
55 //
56 // The pool has a capacity that can be set in the initializer.
57 // When requesting a FlutterClippingMaskView, the pool will first try to reuse an available maskView
58 // in the pool. If there are none available, a new FlutterClippingMaskView is constructed. If the
59 // capacity is reached, the newly constructed FlutterClippingMaskView is not added to the pool.
60 //
61 // Call |insertViewToPoolIfNeeded:| to return a maskView to the pool.
62 @interface FlutterClippingMaskViewPool : NSObject
63
64 // Initialize the pool with `capacity`. When the `capacity` is reached, a FlutterClippingMaskView is
65 // constructed when requested, and it is not added to the pool.
66 - (instancetype)initWithCapacity:(NSInteger)capacity;
67
68 // Reuse a maskView from the pool, or allocate a new one.
69 - (FlutterClippingMaskView*)getMaskViewWithFrame:(CGRect)frame;
70
71 // Insert the `maskView` into the pool.
72 - (void)insertViewToPoolIfNeeded:(FlutterClippingMaskView*)maskView;
73
74 @end
75
76 // An object represents a blur filter.
77 //
78 // This object produces a `backdropFilterView`.
79 // To blur a View, add `backdropFilterView` as a subView of the View.
80 @interface PlatformViewFilter : NSObject
81
82 // Determines the rect of the blur effect in the coordinate system of `backdropFilterView`'s
83 // parentView.
84 @property(nonatomic, readonly) CGRect frame;
85
86 // Determines the blur intensity.
87 //
88 // It is set as the value of `inputRadius` of the `gaussianFilter` that is internally used.
89 @property(nonatomic, readonly) CGFloat blurRadius;
90
91 // This is the view to use to blur the PlatformView.
92 //
93 // It is a modified version of UIKit's `UIVisualEffectView`.
94 // The inputRadius can be customized and it doesn't add any color saturation to the blurred view.
95 @property(nonatomic, readonly) UIVisualEffectView* backdropFilterView;
96
97 // For testing only.
98 + (void)resetPreparation;
99
100 - (instancetype)init NS_UNAVAILABLE;
101
102 // Initialize the filter object.
103 //
104 // The `frame` determines the rect of the blur effect in the coordinate system of
105 // `backdropFilterView`'s parentView. The `blurRadius` determines the blur intensity. It is set as
106 // the value of `inputRadius` of the `gaussianFilter` that is internally used. The
107 // `UIVisualEffectView` is the view that is used to add the blur effects. It is modified to become
108 // `backdropFilterView`, which better supports the need of Flutter.
109 //
110 // Note: if the implementation of UIVisualEffectView changes in a way that affects the
111 // implementation in `PlatformViewFilter`, this method will return nil.
112 - (instancetype)initWithFrame:(CGRect)frame
113 blurRadius:(CGFloat)blurRadius
114 visualEffectView:(UIVisualEffectView*)visualEffectView NS_DESIGNATED_INITIALIZER;
115
116 @end
117
118 // The parent view handles clipping to its subViews.
119 @interface ChildClippingView : UIView
120
121 // Applies blur backdrop filters to the ChildClippingView with blur values from
122 // filters.
123 - (void)applyBlurBackdropFilters:(NSArray<PlatformViewFilter*>*)filters;
124
125 // For testing only.
126 - (NSMutableArray*)backdropFilterSubviews;
127 @end
128
129 namespace flutter {
130 // Converts a SkMatrix to CATransform3D.
131 // Certain fields are ignored in CATransform3D since SkMatrix is 3x3 and CATransform3D is 4x4.
132 CATransform3D GetCATransform3DFromSkMatrix(const SkMatrix& matrix);
133
134 // Reset the anchor of `layer` to match the transform operation from flow.
135 // The position of the `layer` should be unchanged after resetting the anchor.
136 void ResetAnchor(CALayer* layer);
137
138 CGRect GetCGRectFromSkRect(const SkRect& clipSkRect);
139 BOOL BlurRadiusEqualToBlurRadius(CGFloat radius1, CGFloat radius2);
140
141 class IOSContextGL;
142 class IOSSurface;
143
144 struct FlutterPlatformViewLayer {
145 FlutterPlatformViewLayer(const fml::scoped_nsobject<UIView>& overlay_view,
146 const fml::scoped_nsobject<UIView>& overlay_view_wrapper,
147 std::unique_ptr<IOSSurface> ios_surface,
148 std::unique_ptr<Surface> surface);
149
150 ~FlutterPlatformViewLayer();
151
152 fml::scoped_nsobject<UIView> overlay_view;
153 fml::scoped_nsobject<UIView> overlay_view_wrapper;
154 std::unique_ptr<IOSSurface> ios_surface;
155 std::unique_ptr<Surface> surface;
156
157 // Whether a frame for this layer was submitted.
158 bool did_submit_last_frame;
159
160 // The GrContext that is currently used by the overlay surfaces.
161 // We track this to know when the GrContext for the Flutter app has changed
162 // so we can update the overlay with the new context.
163 GrDirectContext* gr_context;
164 };
165
166 // This class isn't thread safe.
167 class FlutterPlatformViewLayerPool {
168 public:
169 FlutterPlatformViewLayerPool() = default;
170
171 ~FlutterPlatformViewLayerPool() = default;
172
173 // Gets a layer from the pool if available, or allocates a new one.
174 // Finally, it marks the layer as used. That is, it increments `available_layer_index_`.
175 std::shared_ptr<FlutterPlatformViewLayer> GetLayer(GrDirectContext* gr_context,
176 const std::shared_ptr<IOSContext>& ios_context,
177 MTLPixelFormat pixel_format);
178
179 // Gets the layers in the pool that aren't currently used.
180 // This method doesn't mark the layers as unused.
181 std::vector<std::shared_ptr<FlutterPlatformViewLayer>> GetUnusedLayers();
182
183 // Marks the layers in the pool as available for reuse.
184 void RecycleLayers();
185
186 private:
187 // The index of the entry in the layers_ vector that determines the beginning of the unused
188 // layers. For example, consider the following vector:
189 // _____
190 // | 0 |
191 /// |---|
192 /// | 1 | <-- available_layer_index_
193 /// |---|
194 /// | 2 |
195 /// |---|
196 ///
197 /// This indicates that entries starting from 1 can be reused meanwhile the entry at position 0
198 /// cannot be reused.
199 size_t available_layer_index_ = 0;
200 std::vector<std::shared_ptr<FlutterPlatformViewLayer>> layers_;
201
202 FML_DISALLOW_COPY_AND_ASSIGN(FlutterPlatformViewLayerPool);
203 };
204
205 class FlutterPlatformViewsController {
206 public:
207 FlutterPlatformViewsController();
208
209 ~FlutterPlatformViewsController();
210
211 fml::WeakPtr<flutter::FlutterPlatformViewsController> GetWeakPtr();
212
213 void SetFlutterView(UIView* flutter_view) __attribute__((cf_audited_transfer));
214
215 void SetFlutterViewController(UIViewController<FlutterViewResponder>* flutter_view_controller)
216 __attribute__((cf_audited_transfer));
217
218 UIViewController<FlutterViewResponder>* getFlutterViewController()
219 __attribute__((cf_audited_transfer));
220
221 void RegisterViewFactory(
222 NSObject<FlutterPlatformViewFactory>* factory,
223 NSString* factoryId,
224 FlutterPlatformViewGestureRecognizersBlockingPolicy gestureRecognizerBlockingPolicy)
225 __attribute__((cf_audited_transfer));
226
227 // Called at the beginning of each frame.
228 void BeginFrame(SkISize frame_size);
229
230 // Indicates that we don't compisite any platform views or overlays during this frame.
231 // Also reverts the composition_order_ to its original state at the beginning of the frame.
232 void CancelFrame();
233
234 void PrerollCompositeEmbeddedView(int64_t view_id,
235 std::unique_ptr<flutter::EmbeddedViewParams> params);
236
237 size_t EmbeddedViewCount();
238
239 // Returns the `FlutterPlatformView`'s `view` object associated with the view_id.
240 //
241 // If the `FlutterPlatformViewsController` does not contain any `FlutterPlatformView` object or
242 // a `FlutterPlatformView` object associated with the view_id cannot be found, the method
243 // returns nil.
244 UIView* GetPlatformViewByID(int64_t view_id);
245
246 // Returns the `FlutterTouchInterceptingView` with the view_id.
247 //
248 // If the `FlutterPlatformViewsController` does not contain any `FlutterPlatformView` object or
249 // a `FlutterPlatformView` object associated with the view_id cannot be found, the method
250 // returns nil.
251 FlutterTouchInterceptingView* GetFlutterTouchInterceptingViewByID(int64_t view_id);
252
253 PostPrerollResult PostPrerollAction(
254 const fml::RefPtr<fml::RasterThreadMerger>& raster_thread_merger);
255
256 void EndFrame(bool should_resubmit_frame,
257 const fml::RefPtr<fml::RasterThreadMerger>& raster_thread_merger);
258
259 DlCanvas* CompositeEmbeddedView(int64_t view_id);
260
261 // The rect of the platform view at index view_id. This rect has been translated into the
262 // host view coordinate system. Units are device screen pixels.
263 SkRect GetPlatformViewRect(int64_t view_id);
264
265 // Discards all platform views instances and auxiliary resources.
266 void Reset();
267
268 bool SubmitFrame(GrDirectContext* gr_context,
269 const std::shared_ptr<IOSContext>& ios_context,
270 std::unique_ptr<SurfaceFrame> frame);
271
272 void OnMethodCall(FlutterMethodCall* call, FlutterResult result)
273 __attribute__((cf_audited_transfer));
274
275 // Returns the platform view id if the platform view (or any of its descendant view) is the first
276 // responder. Returns -1 if no such platform view is found.
277 long FindFirstResponderPlatformViewId();
278
279 // Pushes backdrop filter mutation to the mutator stack of each visited platform view.
280 void PushFilterToVisitedPlatformViews(const std::shared_ptr<const DlImageFilter>& filter,
281 const SkRect& filter_rect);
282
283 // Pushes the view id of a visted platform view to the list of visied platform views.
284 void PushVisitedPlatformView(int64_t view_id) { visited_platform_views_.push_back(view_id); }
285
286 private:
287 static const size_t kMaxLayerAllocations = 2;
288
289 using LayersMap = std::map<int64_t, std::vector<std::shared_ptr<FlutterPlatformViewLayer>>>;
290
291 void OnCreate(FlutterMethodCall* call, FlutterResult result) __attribute__((cf_audited_transfer));
292 void OnDispose(FlutterMethodCall* call, FlutterResult result)
293 __attribute__((cf_audited_transfer));
294 void OnAcceptGesture(FlutterMethodCall* call, FlutterResult result)
295 __attribute__((cf_audited_transfer));
296 void OnRejectGesture(FlutterMethodCall* call, FlutterResult result)
297 __attribute__((cf_audited_transfer));
298 // Dispose the views in `views_to_dispose_`.
299 void DisposeViews();
300
301 // Returns true if there are embedded views in the scene at current frame
302 // Or there will be embedded views in the next frame.
303 // TODO(cyanglaz): https://github.com/flutter/flutter/issues/56474
304 // Make this method check if there are pending view operations instead.
305 // Also rename it to `HasPendingViewOperations`.
306 bool HasPlatformViewThisOrNextFrame();
307
308 // Traverse the `mutators_stack` and return the number of clip operations.
309 int CountClips(const MutatorsStack& mutators_stack);
310
311 void ClipViewSetMaskView(UIView* clipView) __attribute__((cf_audited_transfer));
312
313 // Applies the mutators in the mutators_stack to the UIView chain that was constructed by
314 // `ReconstructClipViewsChain`
315 //
316 // Clips are applied to the `embedded_view`'s super view(|ChildClippingView|) using a
317 // |FlutterClippingMaskView|. Transforms are applied to `embedded_view`
318 //
319 // The `bounding_rect` is the final bounding rect of the PlatformView
320 // (EmbeddedViewParams::finalBoundingRect). If a clip mutator's rect contains the final bounding
321 // rect of the PlatformView, the clip mutator is not applied for performance optimization.
322 void ApplyMutators(const MutatorsStack& mutators_stack,
323 UIView* embedded_view,
324 const SkRect& bounding_rect) __attribute__((cf_audited_transfer));
325
326 void CompositeWithParams(int64_t view_id, const EmbeddedViewParams& params);
327
328 // Allocates a new FlutterPlatformViewLayer if needed, draws the pixels within the rect from
329 // the picture on the layer's canvas.
330 std::shared_ptr<FlutterPlatformViewLayer> GetLayer(GrDirectContext* gr_context,
331 const std::shared_ptr<IOSContext>& ios_context,
332 EmbedderViewSlice* slice,
333 SkIRect rect,
334 int64_t view_id,
335 int64_t overlay_id,
336 MTLPixelFormat pixel_format);
337 // Removes overlay views and platform views that aren't needed in the current frame.
338 // Must run on the platform thread.
339 void RemoveUnusedLayers();
340 // Appends the overlay views and platform view and sets their z index based on the composition
341 // order.
342 void BringLayersIntoView(LayersMap layer_map);
343
344 // Begin a CATransaction.
345 // This transaction needs to be balanced with |CommitCATransactionIfNeeded|.
346 void BeginCATransaction();
347
348 // Commit a CATransaction if |BeginCATransaction| has been called during the frame.
349 void CommitCATransactionIfNeeded();
350
351 // Resets the state of the frame.
352 void ResetFrameState();
353
354 // The pool of reusable view layers. The pool allows to recycle layer in each frame.
355 std::unique_ptr<FlutterPlatformViewLayerPool> layer_pool_;
356
357 // The platform view's |EmbedderViewSlice| keyed off the view id, which contains any subsequent
358 // operation until the next platform view or the end of the last leaf node in the layer tree.
359 //
360 // The Slices are deleted by the FlutterPlatformViewsController.reset().
361 std::map<int64_t, std::unique_ptr<EmbedderViewSlice>> slices_;
362
363 fml::scoped_nsobject<FlutterMethodChannel> channel_;
364 fml::scoped_nsobject<UIView> flutter_view_;
365 fml::scoped_nsobject<UIViewController<FlutterViewResponder>> flutter_view_controller_;
366 fml::scoped_nsobject<FlutterClippingMaskViewPool> mask_view_pool_;
367 std::map<std::string, fml::scoped_nsobject<NSObject<FlutterPlatformViewFactory>>> factories_;
368 std::map<int64_t, fml::scoped_nsobject<NSObject<FlutterPlatformView>>> views_;
369 std::map<int64_t, fml::scoped_nsobject<FlutterTouchInterceptingView>> touch_interceptors_;
370 // Mapping a platform view ID to the top most parent view (root_view) of a platform view. In
371 // |SubmitFrame|, root_views_ are added to flutter_view_ as child views.
372 //
373 // The platform view with the view ID is a child of the root view; If the platform view is not
374 // clipped, and no clipping view is added, the root view will be the intercepting view.
375 std::map<int64_t, fml::scoped_nsobject<UIView>> root_views_;
376 // Mapping a platform view ID to its latest composition params.
377 std::map<int64_t, EmbeddedViewParams> current_composition_params_;
378 // Mapping a platform view ID to the count of the clipping operations that were applied to the
379 // platform view last time it was composited.
380 std::map<int64_t, int64_t> clip_count_;
381 SkISize frame_size_;
382
383 // The number of frames the rasterizer task runner will continue
384 // to run on the platform thread after no platform view is rendered.
385 //
386 // Note: this is an arbitrary number that attempts to account for cases
387 // where the platform view might be momentarily off the screen.
388 static const int kDefaultMergedLeaseDuration = 10;
389
390 // Method channel `OnDispose` calls adds the views to be disposed to this set to be disposed on
391 // the next frame.
392 std::unordered_set<int64_t> views_to_dispose_;
393
394 // A vector of embedded view IDs according to their composition order.
395 // The last ID in this vector belond to the that is composited on top of all others.
396 std::vector<int64_t> composition_order_;
397
398 // A vector of visited platform view IDs.
399 std::vector<int64_t> visited_platform_views_;
400
401 // The latest composition order that was presented in Present().
402 std::vector<int64_t> active_composition_order_;
403
404 // Only compoiste platform views in this set.
405 std::unordered_set<int64_t> views_to_recomposite_;
406
407 // The FlutterPlatformViewGestureRecognizersBlockingPolicy for each type of platform view.
408 std::map<std::string, FlutterPlatformViewGestureRecognizersBlockingPolicy>
409 gesture_recognizers_blocking_policies_;
410
411 bool catransaction_added_ = false;
412
413 // WeakPtrFactory must be the last member.
414 std::unique_ptr<fml::WeakPtrFactory<FlutterPlatformViewsController>> weak_factory_;
415
416 #if FLUTTER_RUNTIME_MODE == FLUTTER_RUNTIME_MODE_DEBUG
417 // A set to keep track of embedded views that does not have (0, 0) origin.
418 // An insertion triggers a warning message about non-zero origin logged on the debug console.
419 // See https://github.com/flutter/flutter/issues/109700 for details.
420 std::unordered_set<int64_t> non_zero_origin_views_;
421 #endif
422
423 FML_DISALLOW_COPY_AND_ASSIGN(FlutterPlatformViewsController);
424 };
425
426 } // namespace flutter
427
428 // A UIView that is used as the parent for embedded UIViews.
429 //
430 // This view has 2 roles:
431 // 1. Delay or prevent touch events from arriving the embedded view.
432 // 2. Dispatching all events that are hittested to the embedded view to the FlutterView.
433 @interface FlutterTouchInterceptingView : UIView
434 - (instancetype)initWithEmbeddedView:(UIView*)embeddedView
435 platformViewsController:
436 (fml::WeakPtr<flutter::FlutterPlatformViewsController>)platformViewsController
437 gestureRecognizersBlockingPolicy:
438 (FlutterPlatformViewGestureRecognizersBlockingPolicy)blockingPolicy;
439
440 // Stop delaying any active touch sequence (and let it arrive the embedded view).
441 - (void)releaseGesture;
442
443 // Prevent the touch sequence from ever arriving to the embedded view.
444 - (void)blockGesture;
445
446 // Get embedded view
447 - (UIView*)embeddedView;
448
449 // Sets flutterAccessibilityContainer as this view's accessibilityContainer.
450 @property(nonatomic, retain) id flutterAccessibilityContainer;
451 @end
452
453 @interface UIView (FirstResponder)
454 // Returns YES if a view or any of its descendant view is the first responder. Returns NO otherwise.
455 @property(nonatomic, readonly) BOOL flt_hasFirstResponderInViewHierarchySubtree;
456 @end
457
458 #endif // FLUTTER_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_FLUTTERPLATFORMVIEWS_INTERNAL_H_
UIView(FirstResponder)::flt_hasFirstResponderInViewHierarchySubtree
BOOL flt_hasFirstResponderInViewHierarchySubtree
Definition: FlutterPlatformViews_Internal.h:455
FlutterPlatformViews.h
flutter::FlutterPlatformViewLayer::ios_surface
std::unique_ptr< IOSSurface > ios_surface
Definition: FlutterPlatformViews_Internal.h:154
-[FlutterTouchInterceptingView blockGesture]
void blockGesture()
Definition: FlutterPlatformViews.mm:1020
-[FlutterTouchInterceptingView releaseGesture]
void releaseGesture()
Definition: FlutterPlatformViews.mm:1016
PlatformViewFilter::frame
CGRect frame
Definition: FlutterPlatformViews_Internal.h:84
flutter::FlutterPlatformViewLayer::did_submit_last_frame
bool did_submit_last_frame
Definition: FlutterPlatformViews_Internal.h:158
flutter::BlurRadiusEqualToBlurRadius
BOOL BlurRadiusEqualToBlurRadius(CGFloat radius1, CGFloat radius2)
Definition: FlutterPlatformViews_Internal.mm:69
FlutterChannels.h
flutter::FlutterPlatformViewLayer::overlay_view_wrapper
fml::scoped_nsobject< UIView > overlay_view_wrapper
Definition: FlutterPlatformViews_Internal.h:153
initWithFrame
instancetype initWithFrame
Definition: FlutterTextInputPlugin.h:172
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GrDirectContext * gr_context
Definition: FlutterPlatformViews_Internal.h:163
flutter::ResetAnchor
void ResetAnchor(CALayer *layer)
Definition: FlutterPlatformViews_Internal.mm:58
-[ChildClippingView backdropFilterSubviews]
NSMutableArray * backdropFilterSubviews()
Definition: FlutterPlatformViews_Internal.mm:218
FlutterPlugin.h
PlatformViewFilter::blurRadius
CGFloat blurRadius
Definition: FlutterPlatformViews_Internal.h:89
FlutterTouchInterceptingView::flutterAccessibilityContainer
id flutterAccessibilityContainer
Definition: FlutterPlatformViews_Internal.h:450
flutter::FlutterPlatformViewLayerPool
Definition: FlutterPlatformViews_Internal.h:167
flutter::FlutterPlatformViewLayer::overlay_view
fml::scoped_nsobject< UIView > overlay_view
Definition: FlutterPlatformViews_Internal.h:152
-[PlatformViewFilter NS_UNAVAILABLE]
instancetype NS_UNAVAILABLE()
FlutterViewResponder.h
FlutterMethodCall
Definition: FlutterCodecs.h:220
-[FlutterClippingMaskView reset]
void reset()
Definition: FlutterPlatformViews_Internal.mm:268
PlatformViewFilter::backdropFilterView
UIVisualEffectView * backdropFilterView
Definition: FlutterPlatformViews_Internal.h:95
flutter
Definition: accessibility_bridge.h:28
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Definition: FlutterPlatformViews_Internal.h:144
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void(^ FlutterResult)(id _Nullable result)
Definition: FlutterChannels.h:194
flutter::FlutterPlatformViewLayer::surface
std::unique_ptr< Surface > surface
Definition: FlutterPlatformViews_Internal.h:155
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Definition: FlutterPlugin.h:252
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Definition: FlutterPlatformViews_Internal.h:62
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Definition: FlutterPlatformViews.mm:16
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Definition: FlutterPlatformViews_Internal.h:119
-[flutter::FlutterPlatformViewsController PushVisitedPlatformView]
void PushVisitedPlatformView(int64_t view_id)
Definition: FlutterPlatformViews_Internal.h:284
+[PlatformViewFilter resetPreparation]
void resetPreparation()
Definition: FlutterPlatformViews_Internal.mm:115
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Definition: FlutterPlatformViews.mm:986
flutter::GetCATransform3DFromSkMatrix
CATransform3D GetCATransform3DFromSkMatrix(const SkMatrix &matrix)
Definition: FlutterPlatformViews_Internal.mm:43
flutter::GetCGRectFromSkRect
CGRect GetCGRectFromSkRect(const SkRect &clipSkRect)
Definition: FlutterPlatformViews_Internal.mm:64
-[FlutterTouchInterceptingView embeddedView]
UIView * embeddedView()
PlatformViewFilter
Definition: FlutterPlatformViews_Internal.h:80
ios_context.h
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Definition: FlutterPlatformViews_Internal.h:205
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Definition: FlutterPlatformViews_Internal.h:31