Flutter macOS Embedder
flutter::FlutterTextPlatformNode Class Reference

The ax platform node for a text field. More...

#include <FlutterTextInputSemanticsObject.h>

Inheritance diagram for flutter::FlutterTextPlatformNode:

Public Member Functions

 FlutterTextPlatformNode (FlutterPlatformNodeDelegate *delegate, __weak FlutterViewController *view_controller)
 Creates a FlutterTextPlatformNode that uses a FlutterTextField as its NativeViewAccessible. More...
 
 ~FlutterTextPlatformNode () override
 
NSRect GetFrame ()
 Gets the frame of this platform node relative to the view of FlutterViewController. This is used by the FlutterTextField to get its frame rect because the FlutterTextField is a subview of the FlutterViewController.view. More...
 
gfx::NativeViewAccessible GetNativeViewAccessible () override
 

Detailed Description

The ax platform node for a text field.

Definition at line 19 of file FlutterTextInputSemanticsObject.h.

Constructor & Destructor Documentation

◆ FlutterTextPlatformNode()

flutter::FlutterTextPlatformNode::FlutterTextPlatformNode ( FlutterPlatformNodeDelegate delegate,
__weak FlutterViewController view_controller 
)
explicit

Creates a FlutterTextPlatformNode that uses a FlutterTextField as its NativeViewAccessible.

Parameters
[in]delegateThe delegate that provides accessibility data.
[in]view_controllerThe view_controller that is used for querying the information about FlutterView and FlutterTextInputPlugin.

Definition at line 161 of file FlutterTextInputSemanticsObject.mm.

162  {
163  Init(delegate);
164  view_controller_ = view_controller;
165  appkit_text_field_ =
166  [[FlutterTextField alloc] initWithPlatformNode:this
167  fieldEditor:view_controller.textInputPlugin];
168  appkit_text_field_.bezeled = NO;
169  appkit_text_field_.drawsBackground = NO;
170  appkit_text_field_.bordered = NO;
171  appkit_text_field_.focusRingType = NSFocusRingTypeNone;
172 }

◆ ~FlutterTextPlatformNode()

flutter::FlutterTextPlatformNode::~FlutterTextPlatformNode ( )
override

Definition at line 174 of file FlutterTextInputSemanticsObject.mm.

174  {
175  [appkit_text_field_ setPlatformNode:nil];
176  EnsureDetachedFromView();
177 }

Member Function Documentation

◆ GetFrame()

NSRect flutter::FlutterTextPlatformNode::GetFrame ( )

Gets the frame of this platform node relative to the view of FlutterViewController. This is used by the FlutterTextField to get its frame rect because the FlutterTextField is a subview of the FlutterViewController.view.

Definition at line 186 of file FlutterTextInputSemanticsObject.mm.

186  {
187  if (!view_controller_.viewLoaded) {
188  return NSZeroRect;
189  }
190  FlutterPlatformNodeDelegate* delegate = static_cast<FlutterPlatformNodeDelegate*>(GetDelegate());
191  bool offscreen;
192  auto bridge_ptr = delegate->GetOwnerBridge().lock();
193  gfx::RectF bounds = bridge_ptr->RelativeToGlobalBounds(delegate->GetAXNode(), offscreen, true);
194 
195  // Converts to NSRect to use NSView rect conversion.
196  NSRect ns_local_bounds = NSMakeRect(bounds.x(), bounds.y(), bounds.width(), bounds.height());
197  // The macOS XY coordinates start at bottom-left and increase toward top-right,
198  // which is different from the Flutter's XY coordinates that start at top-left
199  // increasing to bottom-right. Flip the y coordinate to convert from Flutter
200  // coordinates to macOS coordinates.
201  ns_local_bounds.origin.y = -ns_local_bounds.origin.y - ns_local_bounds.size.height;
202  NSRect ns_view_bounds = [view_controller_.flutterView convertRectFromBacking:ns_local_bounds];
203  return [view_controller_.flutterView convertRect:ns_view_bounds toView:nil];
204 }

References flutter::FlutterPlatformNodeDelegate::GetAXNode(), and flutter::FlutterPlatformNodeDelegate::GetOwnerBridge().

◆ GetNativeViewAccessible()

gfx::NativeViewAccessible flutter::FlutterTextPlatformNode::GetNativeViewAccessible ( )
override

Definition at line 179 of file FlutterTextInputSemanticsObject.mm.

179  {
180  if (EnsureAttachedToView()) {
181  return appkit_text_field_;
182  }
183  return nil;
184 }

Referenced by flutter::testing::TEST().


The documentation for this class was generated from the following files:
FlutterTextField
Definition: FlutterTextInputSemanticsObject.h:78