File:Max a11y arch.svg

@startuml

left to right direction
hide empty members
skinparam shadowing false

interface mozAccessibleProtocol {
+ {field} (NSArray*)accessibilityAttributeNames
+ {field} (NSArray*)accessibilityActionNames
+ {field} (BOOL)isRoot
+ {field} ...
+ (id)accessibilityAttributeValue:(NSString*)attribute
+ (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute
+ {method} ...
}
note top of mozAccessibleProtocol
  Includes methods needed to talk to
  platform and widget code.
end note

interface MOXAccessibleProtocol {
.. Get AXChildren ..
+ {field} (NSArray*)children
.. Get AXParent ..
+ {field} (id)parent
.. Get AXRole ..
+ {field} (NSString*)role
.. Set AXValue ..
+ setValue:(NSNumber*)value
.. Set AXFocused ..
+ setFocused:(NSNumber*)focused
.. Perform AXPress ..
+ {method} performPress
...
}
note top of MOXAccessibleProtocol
  A set of optional methods that map
  to platform attributes and actions
end note

abstract class MOXAccessibleBase extends mozAccessibleProtocol {
  + (BOOL)blockSelector:(SEL)selector
  + (BOOL)ignoreWithParent:(MOXAccessible*)parent
  + (BOOL)ignoreChild:(MOXAccessible*)child
...
}
note top of MOXAccessibleBase
  Base class that is not Gecko specific.
  Implements platform API that maps to internal protocol API.
  Responsible for filtering and managing ignored accessibles.
end note

class MOXAccessible extends MOXAccessibleBase,MOXAccessibleProtocol {
  ~ {field} (AccessibleOrProxy)geckoAccessible
  ~ {field} (uint_64)geckoRole
}
note top of MOXAccessibleBase
  Base accessible that is associated with a Gecko accessible.
  Translates Gecko roles, states and heirarchy to platform APIs.
end note

skinparam ClassBackgroundColor<< Gecko >> MidnightBlue
skinparam ClassFontColor<< Gecko >> White
skinparam ClassStereotypeFontColor<< Gecko >> White

class AccessibleOrProxy << Gecko >>

MOXAccessible *- AccessibleOrProxy

class MOXSummaryAccessible extends MOXAccessible {
  + {field} (NSNumber*)expanded
}

class MOXColumnContainer extends MOXAccessibleBase,MOXAccessibleProtocol

class MOXMathSquareRootAccessible extends MOXAccessible {
  + {field} (id)mathRootRadicand
}

class MOXIncrementableAccessible extends MOXAccessible {
  + {method} performIncrement
  + {method} performDecrement
}

class MOXSelectableAccessible extends MOXAccessible {
  + {field} (NSArray*)selectedChildren
}

class MOXSelectableChildAccessible extends MOXAccessible {
  + setSelected:(NSNumber*)selected
}

class MOXTabGroupAccessible extends MOXSelectableAccessible {
  + {field} (NSArray*)tabs
}

class MOXListboxAccessible extends MOXSelectableAccessible {
  + {field} (NSSttring*)orientation
}

@enduml