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

Definition at line 161 of file FlutterTextInputSemanticsObject.mm.

                                                                                                {
  Init(delegate);
  view_controller_ = view_controller;
  appkit_text_field_ =
      [[FlutterTextField alloc] initWithPlatformNode:this
                                         fieldEditor:view_controller.textInputPlugin];
  appkit_text_field_.bezeled = NO;
  appkit_text_field_.drawsBackground = NO;
  appkit_text_field_.bordered = NO;
  appkit_text_field_.focusRingType = NSFocusRingTypeNone;
}

~FlutterTextPlatformNode()

flutter::FlutterTextPlatformNode::~FlutterTextPlatformNode ( )

override

Definition at line 174 of file FlutterTextInputSemanticsObject.mm.

                                                  {
  [appkit_text_field_ setPlatformNode:nil];
  EnsureDetachedFromView();
}

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.

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

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

GetNativeViewAccessible()

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

override

Definition at line 179 of file FlutterTextInputSemanticsObject.mm.

                                                                         {
  if (EnsureAttachedToView()) {
    return appkit_text_field_;
  }
  return nil;
}

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

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The documentation for this class was generated from the following files:

• shell/platform/darwin/macos/framework/Source/FlutterTextInputSemanticsObject.h
• shell/platform/darwin/macos/framework/Source/FlutterTextInputSemanticsObject.mm