FlutterPlatformViewsController.mm File Reference

import "shell/platform/darwin/ios/framework/Source/FlutterPlatformViewsController.h"
#include "display_list/geometry/dl_geometry_types.h"
#include "impeller/geometry/rounding_radii.h"
#include "flutter/display_list/effects/image_filters/dl_blur_image_filter.h"
#include "flutter/display_list/geometry/dl_geometry_conversions.h"
#include "flutter/display_list/utils/dl_matrix_clip_tracker.h"
#include "flutter/flow/surface_frame.h"
#include "flutter/flow/view_slicer.h"
#include "flutter/fml/logging.h"
#include "flutter/fml/make_copyable.h"
#include "flutter/fml/synchronization/count_down_latch.h"
import "flutter/shell/platform/darwin/common/InternalFlutterSwiftCommon/InternalFlutterSwiftCommon.h"
import "flutter/shell/platform/darwin/ios/framework/Source/FlutterOverlayView.h"
import "flutter/shell/platform/darwin/ios/framework/Source/FlutterView.h"
#include "flutter/shell/platform/darwin/ios/framework/Source/overlay_layer_pool.h"
import "flutter/shell/platform/darwin/ios/ios_surface.h"

Go to the source code of this file.

Classes
struct	LayerData
struct	PlatformViewData

Typedefs
using	LayersMap = std::unordered_map< int64_t, LayerData >

Functions
static CATransform3D	GetCATransform3DFromDlMatrix (const DlMatrix &matrix)
static void	ResetAnchor (CALayer *layer)
static CGRect	GetCGRectFromDlRect (const DlRect &clipDlRect)
static bool	HasNonRectClipForUnderlayCutout (const flutter::EmbeddedViewParams &params)
static void	ApplyNonRectClipToOverlayCanvas (flutter::DlCanvas *overlay_canvas, const flutter::EmbeddedViewParams &params)

Variables
static constexpr NSUInteger	kFlutterClippingMaskViewPoolCapacity = 5
static NSString *const	kGestureBlockingPolicyEagerValue = @"@"eager"
static NSString *const	kGestureBlockingPolicyWaitUntilTouchesEndedValue = @"@"waitUntilTouchesEnded"
static NSString *const	kGestureBlockingPolicyDoNotBlockGesture = @"@"doNotBlockGesture"
static NSString *const	kGestureBlockingPolicyFallbackToPluginDefault = @"@"fallbackToPluginDefault"
std::unordered_map< int64_t, std::unique_ptr< flutter::EmbedderViewSlice > >	_slices
std::unordered_map< std::string, NSObject< FlutterPlatformViewFactory > * >	_factories
std::unordered_map< std::string, FlutterPlatformViewGestureRecognizersBlockingPolicy >	_gestureRecognizersBlockingPoliciesByType
FlutterFMLTaskRunner *	_platformTaskRunner
std::unordered_map< int64_t, PlatformViewData >	_platformViews
std::unordered_map< int64_t, flutter::EmbeddedViewParams >	_currentCompositionParams
std::unordered_set< int64_t >	_viewsToDispose
std::vector< int64_t >	_compositionOrder
std::vector< int64_t >	_visitedPlatformViews
std::unordered_set< int64_t >	_viewsToRecomposite
std::vector< int64_t >	_previousCompositionOrder

Typedef Documentation

LayersMap

using LayersMap = std::unordered_map<int64_t, LayerData>

Definition at line 41 of file FlutterPlatformViewsController.mm.

Function Documentation

ApplyNonRectClipToOverlayCanvas()

static void ApplyNonRectClipToOverlayCanvas ( flutter::DlCanvas *  overlay_canvas, const flutter::EmbeddedViewParams &  params  )

static

Definition at line 113 of file FlutterPlatformViewsController.mm.

                                                                                     {
  flutter::DlMatrix transform;
  auto iter = params.mutatorsStack().Begin();
  while (iter != params.mutatorsStack().End()) {
    switch ((*iter)->GetType()) {
      case flutter::MutatorType::kTransform:
        transform = transform * (*iter)->GetMatrix();
        break;
      case flutter::MutatorType::kClipRRect: {
        if (transform.IsIdentity()) {
          overlay_canvas->ClipRoundRect((*iter)->GetRRect(), flutter::DlClipOp::kIntersect, true);
        } else {
          auto path = flutter::DlPath::MakeRoundRect((*iter)->GetRRect());
          auto transformed_path =
              flutter::DlPath(path.GetSkPath().makeTransform(flutter::ToSkMatrix(transform)));
          overlay_canvas->ClipPath(transformed_path, flutter::DlClipOp::kIntersect, true);
        }
        break;
      }
      case flutter::MutatorType::kClipRSE: {
        if (transform.IsIdentity()) {
          overlay_canvas->ClipRoundSuperellipse((*iter)->GetRSE(), flutter::DlClipOp::kIntersect,
                                                true);
        } else {
          auto path = flutter::DlPath::MakeRoundSuperellipse((*iter)->GetRSE());
          auto transformed_path =
              flutter::DlPath(path.GetSkPath().makeTransform(flutter::ToSkMatrix(transform)));
          overlay_canvas->ClipPath(transformed_path, flutter::DlClipOp::kIntersect, true);
        }
        break;
      }
      case flutter::MutatorType::kClipPath: {
        if (transform.IsIdentity()) {
          overlay_canvas->ClipPath((*iter)->GetPath(), flutter::DlClipOp::kIntersect, true);
        } else {
          auto transformed_path = flutter::DlPath(
              (*iter)->GetPath().GetSkPath().makeTransform(flutter::ToSkMatrix(transform)));
          overlay_canvas->ClipPath(transformed_path, flutter::DlClipOp::kIntersect, true);
        }
        break;
      }
      default:
        break;
    }
    ++iter;
  }
}

References flutter::DlCanvas::ClipPath(), flutter::DlCanvas::ClipRoundRect(), flutter::DlCanvas::ClipRoundSuperellipse(), impeller::Matrix::IsIdentity(), flutter::kClipPath, flutter::kClipRRect, flutter::kClipRSE, flutter::kIntersect, flutter::kTransform, flutter::DlPath::MakeRoundRect(), flutter::DlPath::MakeRoundSuperellipse(), params, flutter::ToSkMatrix(), and transform.

GetCATransform3DFromDlMatrix()

static CATransform3D GetCATransform3DFromDlMatrix ( const DlMatrix &  matrix )

static

Definition at line 54 of file FlutterPlatformViewsController.mm.

                                                                          {
  CATransform3D transform = CATransform3DIdentity;
  transform.m11 = matrix.m[0];
  transform.m12 = matrix.m[1];
  transform.m13 = matrix.m[2];
  transform.m14 = matrix.m[3];
 
  transform.m21 = matrix.m[4];
  transform.m22 = matrix.m[5];
  transform.m23 = matrix.m[6];
  transform.m24 = matrix.m[7];
 
  transform.m31 = matrix.m[8];
  transform.m32 = matrix.m[9];
  transform.m33 = matrix.m[10];
  transform.m34 = matrix.m[11];
 
  transform.m41 = matrix.m[12];
  transform.m42 = matrix.m[13];
  transform.m43 = matrix.m[14];
  transform.m44 = matrix.m[15];
  return transform;
}

References impeller::Matrix::m, and transform.

GetCGRectFromDlRect()

static CGRect GetCGRectFromDlRect ( const DlRect &  clipDlRect )

static

Definition at line 87 of file FlutterPlatformViewsController.mm.

                                                            {
  return CGRectMake(clipDlRect.GetLeft(),   //
                    clipDlRect.GetTop(),    //
                    clipDlRect.GetWidth(),  //
                    clipDlRect.GetHeight());
}

HasNonRectClipForUnderlayCutout()

static bool HasNonRectClipForUnderlayCutout ( const flutter::EmbeddedViewParams &  params )

static

Definition at line 94 of file FlutterPlatformViewsController.mm.

                                                                                     {
  auto iter = params.mutatorsStack().Begin();
  while (iter != params.mutatorsStack().End()) {
    switch ((*iter)->GetType()) {
      case flutter::MutatorType::kClipRRect:
      case flutter::MutatorType::kClipRSE:
      case flutter::MutatorType::kClipPath:
        return true;
      default:
        break;
    }
    ++iter;
  }
  return false;
}

References flutter::kClipPath, flutter::kClipRRect, flutter::kClipRSE, and params.

ResetAnchor()

static void ResetAnchor ( CALayer *  layer )

static

Definition at line 81 of file FlutterPlatformViewsController.mm.

                                        {
  // Flow uses (0, 0) to apply transform matrix so we need to match that in Quartz.
  layer.anchorPoint = CGPointZero;
  layer.position = CGPointZero;
}

Variable Documentation

_compositionOrder

std::vector<int64_t> _compositionOrder

Definition at line 317 of file FlutterPlatformViewsController.mm.

_currentCompositionParams

std::unordered_map<int64_t, flutter::EmbeddedViewParams> _currentCompositionParams

Definition at line 315 of file FlutterPlatformViewsController.mm.

_factories

std::unordered_map<std::string, NSObject<FlutterPlatformViewFactory>*> _factories

Definition at line 310 of file FlutterPlatformViewsController.mm.

_gestureRecognizersBlockingPoliciesByType

std::unordered_map<std::string, FlutterPlatformViewGestureRecognizersBlockingPolicy> _gestureRecognizersBlockingPoliciesByType

Definition at line 312 of file FlutterPlatformViewsController.mm.

_platformTaskRunner

FlutterFMLTaskRunner* _platformTaskRunner

Definition at line 313 of file FlutterPlatformViewsController.mm.

_platformViews

std::unordered_map<int64_t, PlatformViewData> _platformViews

Definition at line 314 of file FlutterPlatformViewsController.mm.

_previousCompositionOrder

std::vector<int64_t> _previousCompositionOrder

Definition at line 320 of file FlutterPlatformViewsController.mm.

_slices

std::unordered_map<int64_t, std::unique_ptr<flutter::EmbedderViewSlice> > _slices

Initial value:

{
  
  
  
  
  
  
  
  std::unique_ptr<flutter::OverlayLayerPool> _layerPool

Definition at line 309 of file FlutterPlatformViewsController.mm.

_viewsToDispose

std::unordered_set<int64_t> _viewsToDispose

Definition at line 316 of file FlutterPlatformViewsController.mm.

_viewsToRecomposite

std::unordered_set<int64_t> _viewsToRecomposite

Definition at line 319 of file FlutterPlatformViewsController.mm.

_visitedPlatformViews

std::vector<int64_t> _visitedPlatformViews

Definition at line 318 of file FlutterPlatformViewsController.mm.

kFlutterClippingMaskViewPoolCapacity

constexpr NSUInteger kFlutterClippingMaskViewPoolCapacity = 5

staticconstexpr

Definition at line 28 of file FlutterPlatformViewsController.mm.

kGestureBlockingPolicyDoNotBlockGesture

NSString* const kGestureBlockingPolicyDoNotBlockGesture = @"@"doNotBlockGesture"

static

Definition at line 32 of file FlutterPlatformViewsController.mm.

kGestureBlockingPolicyEagerValue

NSString* const kGestureBlockingPolicyEagerValue = @"@"eager"

static

Definition at line 30 of file FlutterPlatformViewsController.mm.

kGestureBlockingPolicyFallbackToPluginDefault

NSString* const kGestureBlockingPolicyFallbackToPluginDefault = @"@"fallbackToPluginDefault"

static

Definition at line 33 of file FlutterPlatformViewsController.mm.

kGestureBlockingPolicyWaitUntilTouchesEndedValue

NSString* const kGestureBlockingPolicyWaitUntilTouchesEndedValue = @"@"waitUntilTouchesEnded"

static

Definition at line 31 of file FlutterPlatformViewsController.mm.