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Diffstat (limited to 'vcl/osx/a11ywrapper.mm')
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diff --git a/vcl/osx/a11ywrapper.mm b/vcl/osx/a11ywrapper.mm new file mode 100644 index 000000000..32200acd0 --- /dev/null +++ b/vcl/osx/a11ywrapper.mm @@ -0,0 +1,1147 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <osx/salinst.h> +#include <osx/saldata.hxx> + +#include <osx/a11ywrapper.h> +#include <osx/a11ylistener.hxx> +#include <osx/a11yfactory.h> +#include <osx/a11yfocustracker.hxx> + +#include <quartz/utils.h> + +#include "a11yfocuslistener.hxx" +#include "a11yactionwrapper.h" +#include "a11ycomponentwrapper.h" +#include "a11yselectionwrapper.h" +#include "a11ytablewrapper.h" +#include "a11ytextwrapper.h" +#include "a11yvaluewrapper.h" +#include "a11yrolehelper.h" + +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> +#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp> +#include <com/sun/star/awt/Size.hpp> +#include <com/sun/star/accessibility/XAccessibleRelationSet.hpp> +#include <com/sun/star/accessibility/AccessibleRelationType.hpp> +#include <com/sun/star/lang/DisposedException.hpp> + +#include <sal/log.hxx> +#include <osl/diagnose.h> + +using namespace ::com::sun::star::accessibility; +using namespace ::com::sun::star::awt; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::uno; + +@interface SalFrameWindow : NSWindow +{ +} +-(Reference<XAccessibleContext>)accessibleContext; +@end + +static bool isPopupMenuOpen = false; + +static std::ostream &operator<<(std::ostream &s, NSObject *obj) { + return s << [[obj description] UTF8String]; +} + +@implementation AquaA11yWrapper : NSView + +#pragma mark - +#pragma mark Init and dealloc + +-(id)initWithAccessibleContext: (Reference < XAccessibleContext >) rxAccessibleContext { + self = [ super init ]; + if ( self ) { + [ self setDefaults: rxAccessibleContext ]; + } + return self; +} + +-(void) setDefaults: (Reference < XAccessibleContext >) rxAccessibleContext { + mpReferenceWrapper = new ReferenceWrapper; + mActsAsRadioGroup = NO; + mpReferenceWrapper -> rAccessibleContext = rxAccessibleContext; + mIsTableCell = NO; + // Querying all supported interfaces + try { + // XAccessibleComponent + mpReferenceWrapper->rAccessibleComponent.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleExtendedComponent + mpReferenceWrapper->rAccessibleExtendedComponent.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleSelection + mpReferenceWrapper->rAccessibleSelection.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleTable + mpReferenceWrapper->rAccessibleTable.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleText + mpReferenceWrapper->rAccessibleText.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleEditableText + mpReferenceWrapper->rAccessibleEditableText.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleValue + mpReferenceWrapper->rAccessibleValue.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleAction + mpReferenceWrapper->rAccessibleAction.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleTextAttributes + mpReferenceWrapper->rAccessibleTextAttributes.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleMultiLineText + mpReferenceWrapper->rAccessibleMultiLineText.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleTextMarkup + mpReferenceWrapper->rAccessibleTextMarkup.set( rxAccessibleContext, UNO_QUERY ); + // XAccessibleEventBroadcaster + #if 0 + /* #i102033# NSAccessibility does not seemt to know an equivalent for transient children. + That means we need to cache this, else e.g. tree list boxes are not accessible (moreover + it crashes by notifying dead objects - which would seemt o be another bug) + + FIXME: + Unfortunately this can increase memory consumption drastically until the non transient parent + is destroyed and finally all the transients are released. + */ + if ( ! rxAccessibleContext -> getAccessibleStateSet() -> contains ( AccessibleStateType::TRANSIENT ) ) + #endif + { + Reference< XAccessibleEventBroadcaster > xBroadcaster(rxAccessibleContext, UNO_QUERY); + if( xBroadcaster.is() ) { + /* + * We intentionally do not hold a reference to the event listener in the wrapper object, + * but let the listener control the life cycle of the wrapper instead .. + */ + xBroadcaster->addAccessibleEventListener( new AquaA11yEventListener( self, rxAccessibleContext -> getAccessibleRole() ) ); + } + } + // TABLE_CELL + if ( rxAccessibleContext -> getAccessibleRole() == AccessibleRole::TABLE_CELL ) { + mIsTableCell = YES; + } + } catch ( const Exception ) { + } +} + +-(void)dealloc { + if ( mpReferenceWrapper ) { + delete mpReferenceWrapper; + } + [ super dealloc ]; +} + +#pragma mark - +#pragma mark Utility Section + +// generates selectors for attribute name AXAttributeNameHere +// (getter without parameter) attributeNameHereAttribute +// (getter with parameter) attributeNameHereAttributeForParameter: +// (setter) setAttributeNameHereAttributeForElement:to: +-(SEL)selectorForAttribute:(NSString *)attribute asGetter:(BOOL)asGetter withGetterParameter:(BOOL)withGetterParameter { + SEL selector = static_cast<SEL>(nil); + NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ]; + @try { + // step 1: create method name from attribute name + NSMutableString * methodName = [ NSMutableString string ]; + if ( ! asGetter ) { + [ methodName appendString: @"set" ]; + } + NSRange const aRange = { 2, 1 }; + NSString * firstChar = [ attribute substringWithRange: aRange ]; // drop leading "AX" and get first char + if ( asGetter ) { + [ methodName appendString: [ firstChar lowercaseString ] ]; + } else { + [ methodName appendString: firstChar ]; + } + [ methodName appendString: [ attribute substringFromIndex: 3 ] ]; // append rest of attribute name + // append rest of method name + [ methodName appendString: @"Attribute" ]; + if ( ! asGetter ) { + [ methodName appendString: @"ForElement:to:" ]; + } else if ( asGetter && withGetterParameter ) { + [ methodName appendString: @"ForParameter:" ]; + } + // step 2: create selector + selector = NSSelectorFromString ( methodName ); + } @catch ( id ) { + selector = static_cast<SEL>(nil); + } + [ pool release ]; + return selector; +} + +-(Reference < XAccessible >)getFirstRadioButtonInGroup { + Reference < XAccessibleRelationSet > rxAccessibleRelationSet = [ self accessibleContext ] -> getAccessibleRelationSet(); + if( rxAccessibleRelationSet.is() ) + { + AccessibleRelation relationMemberOf = rxAccessibleRelationSet -> getRelationByType ( AccessibleRelationType::MEMBER_OF ); + if ( relationMemberOf.RelationType == AccessibleRelationType::MEMBER_OF && relationMemberOf.TargetSet.hasElements() ) + return Reference < XAccessible > ( relationMemberOf.TargetSet[0], UNO_QUERY ); + } + return Reference < XAccessible > (); +} + +-(BOOL)isFirstRadioButtonInGroup { + Reference < XAccessible > rFirstMateAccessible = [ self getFirstRadioButtonInGroup ]; + if ( rFirstMateAccessible.is() && rFirstMateAccessible -> getAccessibleContext().get() == [ self accessibleContext ] ) { + return YES; + } + return NO; +} + +#pragma mark - +#pragma mark Attribute Value Getters +// ( called via Reflection by accessibilityAttributeValue ) + +/* + Radiobutton grouping is done differently in NSAccessibility and the UNO-API. In UNO related radio buttons share an entry in their + RelationSet. In NSAccessibility the relationship is expressed through the hierarchy. An AXRadioGroup contains two or more AXRadioButton + objects. Since this group is not available in the UNO hierarchy, an extra wrapper is used for it. This wrapper shares almost all + attributes with the first radio button of the group, except for the role, subrole, role description, parent and children attributes. + So in this five methods there is a special treatment for radio buttons and groups. +*/ + +-(id)roleAttribute { + if ( mActsAsRadioGroup ) { + return NSAccessibilityRadioGroupRole; + } + else { + return [ AquaA11yRoleHelper getNativeRoleFrom: [ self accessibleContext ] ]; + } +} + +-(id)subroleAttribute { + if ( mActsAsRadioGroup ) { + return @""; + } else { + NSString * subRole = [ AquaA11yRoleHelper getNativeSubroleFrom: [ self accessibleContext ] -> getAccessibleRole() ]; + if ( ! [ subRole isEqualToString: @"" ] ) { + return subRole; + } else { + [ subRole release ]; + SAL_WNODEPRECATED_DECLARATIONS_PUSH + //TODO: 10.10 accessibilityAttributeValue: + return [ super accessibilityAttributeValue: NSAccessibilitySubroleAttribute ]; + SAL_WNODEPRECATED_DECLARATIONS_POP + } + } +} + +-(id)titleAttribute { + return CreateNSString ( [ self accessibleContext ] -> getAccessibleName() ); +} + +-(id)descriptionAttribute { + if ( [ self accessibleContext ] -> getAccessibleRole() == AccessibleRole::COMBO_BOX ) { + return [ self titleAttribute ]; + } else if ( [ self accessibleExtendedComponent ] ) { + return [ AquaA11yComponentWrapper descriptionAttributeForElement: self ]; + } else { + return CreateNSString ( [ self accessibleContext ] -> getAccessibleDescription() ); + } +} + +-(id)enabledAttribute { + if ( [ self accessibleContext ] -> getAccessibleStateSet().is() ) { + return [ NSNumber numberWithBool: [ self accessibleContext ] -> getAccessibleStateSet() -> contains ( AccessibleStateType::ENABLED ) ]; + } else { + return nil; + } +} + +-(id)focusedAttribute { + if ( [ self accessibleContext ] -> getAccessibleRole() == AccessibleRole::COMBO_BOX ) { + id isFocused = nil; + Reference < XAccessible > rxParent = [ self accessibleContext ] -> getAccessibleParent(); + if ( rxParent.is() ) { + Reference < XAccessibleContext > rxContext = rxParent -> getAccessibleContext(); + if ( rxContext.is() && rxContext -> getAccessibleStateSet().is() ) { + isFocused = [ NSNumber numberWithBool: rxContext -> getAccessibleStateSet() -> contains ( AccessibleStateType::FOCUSED ) ]; + } + } + return isFocused; + } else if ( [ self accessibleContext ] -> getAccessibleStateSet().is() ) { + return [ NSNumber numberWithBool: [ self accessibleContext ] -> getAccessibleStateSet() -> contains ( AccessibleStateType::FOCUSED ) ]; + } else { + return nil; + } +} + +-(id)parentAttribute { + if ( [ self accessibleContext ] -> getAccessibleRole() == AccessibleRole::RADIO_BUTTON && ! mActsAsRadioGroup ) { + Reference < XAccessible > rxAccessible = [ self getFirstRadioButtonInGroup ]; + if ( rxAccessible.is() && rxAccessible -> getAccessibleContext().is() ) { + Reference < XAccessibleContext > rxAccessibleContext = rxAccessible -> getAccessibleContext(); + id parent_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rxAccessibleContext createIfNotExists: YES asRadioGroup: YES ]; + [ parent_wrapper autorelease ]; + return NSAccessibilityUnignoredAncestor( parent_wrapper ); + } + return nil; + } + try { + Reference< XAccessible > xParent( [ self accessibleContext ] -> getAccessibleParent() ); + if ( xParent.is() ) { + Reference< XAccessibleContext > xContext( xParent -> getAccessibleContext() ); + if ( xContext.is() ) { + id parent_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: xContext ]; + [ parent_wrapper autorelease ]; + return NSAccessibilityUnignoredAncestor( parent_wrapper ); + } + } + } catch (const Exception&) { + } + + OSL_ASSERT( false ); + return nil; +} + +-(id)childrenAttribute { + if ( mActsAsRadioGroup ) { + NSMutableArray * children = [ [ NSMutableArray alloc ] init ]; + Reference < XAccessibleRelationSet > rxAccessibleRelationSet = [ self accessibleContext ] -> getAccessibleRelationSet(); + AccessibleRelation const relationMemberOf = rxAccessibleRelationSet -> getRelationByType ( AccessibleRelationType::MEMBER_OF ); + if ( relationMemberOf.RelationType == AccessibleRelationType::MEMBER_OF && relationMemberOf.TargetSet.hasElements() ) { + for ( const auto& i : relationMemberOf.TargetSet ) { + Reference < XAccessible > rMateAccessible( i, UNO_QUERY ); + if ( rMateAccessible.is() ) { + Reference< XAccessibleContext > rMateAccessibleContext( rMateAccessible -> getAccessibleContext() ); + if ( rMateAccessibleContext.is() ) { + id wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rMateAccessibleContext ]; + [ children addObject: wrapper ]; + [ wrapper release ]; + } + } + } + } + return children; + } else if ( [ self accessibleTable ] ) + { + AquaA11yTableWrapper* pTable = [self isKindOfClass: [AquaA11yTableWrapper class]] ? static_cast<AquaA11yTableWrapper*>(self) : nil; + return [ AquaA11yTableWrapper childrenAttributeForElement: pTable ]; + } else { + try { + NSMutableArray * children = [ [ NSMutableArray alloc ] init ]; + Reference< XAccessibleContext > xContext( [ self accessibleContext ] ); + + sal_Int32 cnt = xContext -> getAccessibleChildCount(); + for ( sal_Int32 i = 0; i < cnt; i++ ) { + Reference< XAccessible > xChild( xContext -> getAccessibleChild( i ) ); + if( xChild.is() ) { + Reference< XAccessibleContext > xChildContext( xChild -> getAccessibleContext() ); + // the menubar is already accessible (including Apple- and Application-Menu) through NSApplication => omit it here + if ( xChildContext.is() && AccessibleRole::MENU_BAR != xChildContext -> getAccessibleRole() ) { + id wrapper = [ AquaA11yFactory wrapperForAccessibleContext: xChildContext ]; + [ children addObject: wrapper ]; + [ wrapper release ]; + } + } + } + + // if not already acting as RadioGroup now is the time to replace RadioButtons with RadioGroups and remove RadioButtons + if ( ! mActsAsRadioGroup ) { + NSEnumerator * enumerator = [ children objectEnumerator ]; + AquaA11yWrapper * element; + while ( ( element = static_cast<AquaA11yWrapper *>([ enumerator nextObject ]) ) ) { + if ( [ element accessibleContext ] -> getAccessibleRole() == AccessibleRole::RADIO_BUTTON ) { + if ( [ element isFirstRadioButtonInGroup ] ) { + id wrapper = [ AquaA11yFactory wrapperForAccessibleContext: [ element accessibleContext ] createIfNotExists: YES asRadioGroup: YES ]; + [ children replaceObjectAtIndex: [ children indexOfObjectIdenticalTo: element ] withObject: wrapper ]; + } + [ children removeObject: element ]; + } + } + } + + [ children autorelease ]; + return NSAccessibilityUnignoredChildren( children ); + } catch (const Exception &) { + // TODO: Log + return nil; + } + } +} + +-(id)windowAttribute { + // go upstairs until reaching the broken connection + AquaA11yWrapper * aWrapper = self; + int loops = 0; + while ( [ aWrapper accessibleContext ] -> getAccessibleParent().is() ) { + AquaA11yWrapper *aTentativeParentWrapper = [ AquaA11yFactory wrapperForAccessibleContext: [ aWrapper accessibleContext ] -> getAccessibleParent() -> getAccessibleContext() ]; + // Quick-and-dirty fix for infinite loop after fixing crash in + // fdo#47275 + if ( aTentativeParentWrapper == aWrapper ) + break; + // Even dirtier fix for infinite loop in fdo#55156 + if ( loops++ == 100 ) + break; + aWrapper = aTentativeParentWrapper; + [ aWrapper autorelease ]; + } + // get associated NSWindow + NSWindow* theWindow = [ aWrapper windowForParent ]; + return theWindow; +} + +-(id)topLevelUIElementAttribute { + return [ self windowAttribute ]; +} + +-(id)sizeAttribute { + if ( [ self accessibleComponent ] ) { + return [ AquaA11yComponentWrapper sizeAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)positionAttribute { + if ( [ self accessibleComponent ] ) { + return [ AquaA11yComponentWrapper positionAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)helpAttribute { + return CreateNSString ( [ self accessibleContext ] -> getAccessibleDescription() ); +} + +-(id)roleDescriptionAttribute { + if ( mActsAsRadioGroup ) { + return [ AquaA11yRoleHelper getRoleDescriptionFrom: NSAccessibilityRadioGroupRole with: @"" ]; + } else if( [ self accessibleContext ] -> getAccessibleRole() == AccessibleRole::RADIO_BUTTON ) { + // FIXME: VO should read this because of hierarchy, this is just a workaround + // get parent and its children + AquaA11yWrapper * parent = [ self parentAttribute ]; + NSArray * children = [ parent childrenAttribute ]; + // find index of self + int index = 1; + NSEnumerator * enumerator = [ children objectEnumerator ]; + AquaA11yWrapper * child = nil; + while ( ( child = [ enumerator nextObject ] ) ) { + if ( self == child ) { + break; + } + index++; + } + // build string + NSNumber * nIndex = [ NSNumber numberWithInt: index ]; + NSNumber * nGroupsize = [ NSNumber numberWithInt: [ children count ] ]; + NSMutableString * value = [ [ NSMutableString alloc ] init ]; + [ value appendString: @"radio button " ]; + [ value appendString: [ nIndex stringValue ] ]; + [ value appendString: @" of " ]; + [ value appendString: [ nGroupsize stringValue ] ]; + // clean up and return string + [ nIndex release ]; + [ nGroupsize release ]; + [ children release ]; + return value; + } else { + return [ AquaA11yRoleHelper getRoleDescriptionFrom: + [ AquaA11yRoleHelper getNativeRoleFrom: [ self accessibleContext ] ] + with: [ AquaA11yRoleHelper getNativeSubroleFrom: [ self accessibleContext ] -> getAccessibleRole() ] ]; + } +} + +-(id)valueAttribute { + if ( [ [ self roleAttribute ] isEqualToString: NSAccessibilityMenuItemRole ] ) { + return nil; + } else if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper valueAttributeForElement: self ]; + } else if ( [ self accessibleValue ] ) { + return [ AquaA11yValueWrapper valueAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)minValueAttribute { + if ( [ self accessibleValue ] ) { + return [ AquaA11yValueWrapper minValueAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)maxValueAttribute { + if ( [ self accessibleValue ] ) { + return [ AquaA11yValueWrapper maxValueAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)contentsAttribute { + return [ self childrenAttribute ]; +} + +-(id)selectedChildrenAttribute { + return [ AquaA11ySelectionWrapper selectedChildrenAttributeForElement: self ]; +} + +-(id)numberOfCharactersAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper numberOfCharactersAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)selectedTextAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper selectedTextAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)selectedTextRangeAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper selectedTextRangeAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)visibleCharacterRangeAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper visibleCharacterRangeAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)tabsAttribute { + return self; // TODO ??? +} + +-(id)sharedTextUIElementsAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper sharedTextUIElementsAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)sharedCharacterRangeAttribute { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper sharedCharacterRangeAttributeForElement: self ]; + } else { + return nil; + } +} + +-(id)expandedAttribute { + return [ NSNumber numberWithBool: [ self accessibleContext ] -> getAccessibleStateSet() -> contains ( AccessibleStateType::EXPANDED ) ]; +} + +-(id)selectedAttribute { + return [ NSNumber numberWithBool: [ self accessibleContext ] -> getAccessibleStateSet() -> contains ( AccessibleStateType::SELECTED ) ]; +} + +-(id)stringForRangeAttributeForParameter:(id)range { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper stringForRangeAttributeForElement: self forParameter: range ]; + } else { + return nil; + } +} + +-(id)attributedStringForRangeAttributeForParameter:(id)range { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper attributedStringForRangeAttributeForElement: self forParameter: range ]; + } else { + return nil; + } +} + +-(id)rangeForIndexAttributeForParameter:(id)index { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper rangeForIndexAttributeForElement: self forParameter: index ]; + } else { + return nil; + } +} + +-(id)rangeForPositionAttributeForParameter:(id)point { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper rangeForPositionAttributeForElement: self forParameter: point ]; + } else { + return nil; + } +} + +-(id)boundsForRangeAttributeForParameter:(id)range { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper boundsForRangeAttributeForElement: self forParameter: range ]; + } else { + return nil; + } +} + +-(id)styleRangeForIndexAttributeForParameter:(id)index { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper styleRangeForIndexAttributeForElement: self forParameter: index ]; + } else { + return nil; + } +} + +-(id)rTFForRangeAttributeForParameter:(id)range { + if ( [ self accessibleText ] ) { + return [ AquaA11yTextWrapper rTFForRangeAttributeForElement: self forParameter: range ]; + } else { + return nil; + } +} + +-(id)orientationAttribute { + NSString * orientation = nil; + Reference < XAccessibleStateSet > stateSet = [ self accessibleContext ] -> getAccessibleStateSet(); + if ( stateSet -> contains ( AccessibleStateType::HORIZONTAL ) ) { + orientation = NSAccessibilityHorizontalOrientationValue; + } else if ( stateSet -> contains ( AccessibleStateType::VERTICAL ) ) { + orientation = NSAccessibilityVerticalOrientationValue; + } + return orientation; +} + +-(id)titleUIElementAttribute { + if ( [ self accessibleContext ] -> getAccessibleRelationSet().is() ) { + NSString * title = [ self titleAttribute ]; + id titleElement = nil; + if ( [ title length ] == 0 ) { + AccessibleRelation relationLabeledBy = [ self accessibleContext ] -> getAccessibleRelationSet() -> getRelationByType ( AccessibleRelationType::LABELED_BY ); + if ( relationLabeledBy.RelationType == AccessibleRelationType::LABELED_BY && relationLabeledBy.TargetSet.hasElements() ) { + Reference < XAccessible > rxAccessible ( relationLabeledBy.TargetSet[0], UNO_QUERY ); + titleElement = [ AquaA11yFactory wrapperForAccessibleContext: rxAccessible -> getAccessibleContext() ]; + } + } + if ( title ) { + [ title release ]; + } + return titleElement; + } else { + return nil; + } +} + +-(id)servesAsTitleForUIElementsAttribute { + if ( [ self accessibleContext ] -> getAccessibleRelationSet().is() ) { + id titleForElement = nil; + AccessibleRelation relationLabelFor = [ self accessibleContext ] -> getAccessibleRelationSet() -> getRelationByType ( AccessibleRelationType::LABEL_FOR ); + if ( relationLabelFor.RelationType == AccessibleRelationType::LABEL_FOR && relationLabelFor.TargetSet.hasElements() ) { + Reference < XAccessible > rxAccessible ( relationLabelFor.TargetSet[0], UNO_QUERY ); + titleForElement = [ AquaA11yFactory wrapperForAccessibleContext: rxAccessible -> getAccessibleContext() ]; + } + return titleForElement; + } else { + return nil; + } +} + +-(id)lineForIndexAttributeForParameter:(id)index { + if ( [ self accessibleMultiLineText ] ) { + return [ AquaA11yTextWrapper lineForIndexAttributeForElement: self forParameter: index ]; + } else { + return nil; + } +} + +-(id)rangeForLineAttributeForParameter:(id)line { + if ( [ self accessibleMultiLineText ] ) { + return [ AquaA11yTextWrapper rangeForLineAttributeForElement: self forParameter: line ]; + } else { + return nil; + } +} + +#pragma mark - +#pragma mark Accessibility Protocol + +-(id)accessibilityAttributeValue:(NSString *)attribute { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityAttributeValue:" << attribute << "]"); + // #i90575# guard NSAccessibility protocol against unwanted access + if ( isPopupMenuOpen ) { + return nil; + } + + id value = nil; + // if we are no longer in the wrapper repository, we have been disposed + AquaA11yWrapper * theWrapper = [ AquaA11yFactory wrapperForAccessibleContext: [ self accessibleContext ] createIfNotExists: NO ]; + if ( theWrapper || mIsTableCell ) { + try { + SEL methodSelector = [ self selectorForAttribute: attribute asGetter: YES withGetterParameter: NO ]; + if ( [ self respondsToSelector: methodSelector ] ) { + value = [ self performSelector: methodSelector ]; + } + } catch ( const DisposedException & ) { + mIsTableCell = NO; // just to be sure + [ AquaA11yFactory removeFromWrapperRepositoryFor: [ self accessibleContext ] ]; + return nil; + } catch ( const Exception & ) { + // empty + } + } + if ( theWrapper ) { + [ theWrapper release ]; // the above called method calls retain on the returned Wrapper + } + return value; +} + +-(BOOL)accessibilityIsIgnored { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityIsIgnored]"); + // #i90575# guard NSAccessibility protocol against unwanted access + if ( isPopupMenuOpen ) { + return NO; + } + bool ignored = false; + sal_Int16 nRole = [ self accessibleContext ] -> getAccessibleRole(); + switch ( nRole ) { + //case AccessibleRole::PANEL: + case AccessibleRole::FRAME: + case AccessibleRole::ROOT_PANE: + case AccessibleRole::SEPARATOR: + case AccessibleRole::FILLER: + case AccessibleRole::DIALOG: + ignored = true; + break; + default: + ignored = ! ( [ self accessibleContext ] -> getAccessibleStateSet() -> contains ( AccessibleStateType::VISIBLE ) ); + break; + } + return ignored; // TODO: to be completed +} + +-(NSArray *)accessibilityAttributeNames { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityAttributeNames]"); + // #i90575# guard NSAccessibility protocol against unwanted access + if ( isPopupMenuOpen ) { + return nil; + } + NSString * nativeSubrole = nil; + NSString * title = nil; + NSMutableArray * attributeNames = nil; + sal_Int32 nAccessibleChildren = 0; + try { + // Default Attributes + attributeNames = [ NSMutableArray arrayWithObjects: + NSAccessibilityRoleAttribute, + NSAccessibilityDescriptionAttribute, + NSAccessibilityParentAttribute, + NSAccessibilityWindowAttribute, + NSAccessibilityHelpAttribute, + NSAccessibilityTopLevelUIElementAttribute, + NSAccessibilityRoleDescriptionAttribute, + nil ]; + nativeSubrole = static_cast<NSString *>([ AquaA11yRoleHelper getNativeSubroleFrom: [ self accessibleContext ] -> getAccessibleRole() ]); + title = static_cast<NSString *>([ self titleAttribute ]); + Reference < XAccessibleRelationSet > rxRelationSet = [ self accessibleContext ] -> getAccessibleRelationSet(); + // Special Attributes depending on attribute values + if ( nativeSubrole && ! [ nativeSubrole isEqualToString: @"" ] ) { + [ attributeNames addObject: NSAccessibilitySubroleAttribute ]; + } + try + { + nAccessibleChildren = [ self accessibleContext ] -> getAccessibleChildCount(); + if ( nAccessibleChildren > 0 ) { + [ attributeNames addObject: NSAccessibilityChildrenAttribute ]; + } + } + catch( DisposedException& ) {} + catch( RuntimeException& ) {} + + if ( title && ! [ title isEqualToString: @"" ] ) { + [ attributeNames addObject: NSAccessibilityTitleAttribute ]; + } + if ( [ title length ] == 0 && rxRelationSet.is() && rxRelationSet -> containsRelation ( AccessibleRelationType::LABELED_BY ) ) { + [ attributeNames addObject: NSAccessibilityTitleUIElementAttribute ]; + } + if ( rxRelationSet.is() && rxRelationSet -> containsRelation ( AccessibleRelationType::LABEL_FOR ) ) { + [ attributeNames addObject: NSAccessibilityServesAsTitleForUIElementsAttribute ]; + } + // Special Attributes depending on interface + if( [self accessibleContext ] -> getAccessibleRole() == AccessibleRole::TABLE ) + [AquaA11yTableWrapper addAttributeNamesTo: attributeNames object: self]; + + if ( [ self accessibleText ] ) { + [ AquaA11yTextWrapper addAttributeNamesTo: attributeNames ]; + } + if ( [ self accessibleComponent ] ) { + [ AquaA11yComponentWrapper addAttributeNamesTo: attributeNames ]; + } + if ( [ self accessibleSelection ] ) { + [ AquaA11ySelectionWrapper addAttributeNamesTo: attributeNames ]; + } + if ( [ self accessibleValue ] ) { + [ AquaA11yValueWrapper addAttributeNamesTo: attributeNames ]; + } + [ nativeSubrole release ]; + [ title release ]; + return attributeNames; + } catch ( DisposedException & ) { // Object is no longer available + if ( nativeSubrole ) { + [ nativeSubrole release ]; + } + if ( title ) { + [ title release ]; + } + if ( attributeNames ) { + [ attributeNames release ]; + } + [ AquaA11yFactory removeFromWrapperRepositoryFor: [ self accessibleContext ] ]; + return [ [ NSArray alloc ] init ]; + } +} + +-(BOOL)accessibilityIsAttributeSettable:(NSString *)attribute { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityAttributeIsSettable:" << attribute << "]"); + bool isSettable = false; + if ( [ self accessibleText ] ) { + isSettable = [ AquaA11yTextWrapper isAttributeSettable: attribute forElement: self ]; + } + if ( ! isSettable && [ self accessibleComponent ] ) { + isSettable = [ AquaA11yComponentWrapper isAttributeSettable: attribute forElement: self ]; + } + if ( ! isSettable && [ self accessibleSelection ] ) { + isSettable = [ AquaA11ySelectionWrapper isAttributeSettable: attribute forElement: self ]; + } + if ( ! isSettable && [ self accessibleValue ] ) { + isSettable = [ AquaA11yValueWrapper isAttributeSettable: attribute forElement: self ]; + } + return isSettable; // TODO: to be completed +} + +-(NSArray *)accessibilityParameterizedAttributeNames { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityParameterizedAttributeNames]"); + NSMutableArray * attributeNames = [ [ NSMutableArray alloc ] init ]; + // Special Attributes depending on interface + if ( [ self accessibleText ] ) { + [ AquaA11yTextWrapper addParameterizedAttributeNamesTo: attributeNames ]; + } + return attributeNames; // TODO: to be completed +} + +-(id)accessibilityAttributeValue:(NSString *)attribute forParameter:(id)parameter { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityAttributeValue:" << attribute << " forParameter:" << (static_cast<NSObject*>(parameter)) << "]"); + SEL methodSelector = [ self selectorForAttribute: attribute asGetter: YES withGetterParameter: YES ]; + if ( [ self respondsToSelector: methodSelector ] ) { + return [ self performSelector: methodSelector withObject: parameter ]; + } + return nil; // TODO: to be completed +} + +-(BOOL)accessibilitySetOverrideValue:(id)value forAttribute:(NSString *)attribute +{ + SAL_INFO("vcl.a11y", "[" << self << " accessibilitySetOverrideValue:" << (static_cast<NSObject*>(value)) << " forAttribute:" << attribute << "]"); + return NO; // TODO +} + +-(void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute { + SAL_INFO("vcl.a11y", "[" << self << " accessibilitySetValue:" << (static_cast<NSObject*>(value)) << " forAttribute:" << attribute << "]"); + SEL methodSelector = [ self selectorForAttribute: attribute asGetter: NO withGetterParameter: NO ]; + if ( [ AquaA11yComponentWrapper respondsToSelector: methodSelector ] ) { + [ AquaA11yComponentWrapper performSelector: methodSelector withObject: self withObject: value ]; + } + if ( [ AquaA11yTextWrapper respondsToSelector: methodSelector ] ) { + [ AquaA11yTextWrapper performSelector: methodSelector withObject: self withObject: value ]; + } + if ( [ AquaA11ySelectionWrapper respondsToSelector: methodSelector ] ) { + [ AquaA11ySelectionWrapper performSelector: methodSelector withObject: self withObject: value ]; + } + if ( [ AquaA11yValueWrapper respondsToSelector: methodSelector ] ) { + [ AquaA11yValueWrapper performSelector: methodSelector withObject: self withObject: value ]; + } +} + +-(id)accessibilityFocusedUIElement { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityFocusedUIElement]"); + // #i90575# guard NSAccessibility protocol against unwanted access + if ( isPopupMenuOpen ) { + return nil; + } + + // as this seems to be the first API call on a newly created SalFrameView object, + // make sure self gets registered in the repository .. + [ self accessibleContext ]; + + AquaA11yWrapper * focusedUIElement = AquaA11yFocusListener::get()->getFocusedUIElement(); +// AquaA11yWrapper * ancestor = focusedUIElement; + + // Make sure the focused object is a descendant of self +// do { +// if( self == ancestor ) + return focusedUIElement; + +// ancestor = [ ancestor accessibilityAttributeValue: NSAccessibilityParentAttribute ]; +// } while( nil != ancestor ); + + return self; +} + +-(NSString *)accessibilityActionDescription:(NSString *)action { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityActionDescription:" << action << "]"); + return NSAccessibilityActionDescription(action); +} + +-(AquaA11yWrapper *)actionResponder { + AquaA11yWrapper * wrapper = nil; + // get some information + NSString * role = static_cast<NSString *>([ self accessibilityAttributeValue: NSAccessibilityRoleAttribute ]); + id enabledAttr = [ self enabledAttribute ]; + bool enabled = [ enabledAttr boolValue ]; + NSView * parent = static_cast<NSView *>([ self accessibilityAttributeValue: NSAccessibilityParentAttribute ]); + AquaA11yWrapper * parentAsWrapper = nil; + if ( [ parent isKindOfClass: [ AquaA11yWrapper class ] ] ) { + parentAsWrapper = static_cast<AquaA11yWrapper *>(parent); + } + SAL_WNODEPRECATED_DECLARATIONS_PUSH + //TODO: 10.10 accessibilityAttributeValue: + NSString * parentRole = static_cast<NSString *>([ parent accessibilityAttributeValue: NSAccessibilityRoleAttribute ]); + SAL_WNODEPRECATED_DECLARATIONS_POP + // if we are a textarea inside a combobox, then the combobox is the action responder + if ( enabled + && [ role isEqualToString: NSAccessibilityTextAreaRole ] + && [ parentRole isEqualToString: NSAccessibilityComboBoxRole ] + && parentAsWrapper ) { + wrapper = parentAsWrapper; + } else if ( enabled && [ self accessibleAction ] ) { + wrapper = self ; + } + [ parentRole release ]; + [ enabledAttr release ]; + [ role release ]; + return wrapper; +} + +-(void)accessibilityPerformAction:(NSString *)action { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityPerformAction:" << action << "]"); + AquaA11yWrapper * actionResponder = [ self actionResponder ]; + if ( actionResponder ) { + [ AquaA11yActionWrapper doAction: action ofElement: actionResponder ]; + } +} + +-(NSArray *)accessibilityActionNames { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityActionNames]"); + NSArray * actionNames = nil; + AquaA11yWrapper * actionResponder = [ self actionResponder ]; + if ( actionResponder ) { + actionNames = [ AquaA11yActionWrapper actionNamesForElement: actionResponder ]; + } else { + actionNames = [ [ NSArray alloc ] init ]; + } + return actionNames; +} + +#pragma mark - +#pragma mark Hit Test + +-(BOOL)isViewElement:(NSObject *)viewElement hitByPoint:(NSPoint)point { + bool hit = false; + NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ]; + SAL_WNODEPRECATED_DECLARATIONS_PUSH + //TODO: 10.10 accessibilityAttributeValue: + NSValue * position = [ viewElement accessibilityAttributeValue: NSAccessibilityPositionAttribute ]; + NSValue * size = [ viewElement accessibilityAttributeValue: NSAccessibilitySizeAttribute ]; + SAL_WNODEPRECATED_DECLARATIONS_POP + if ( position && size ) { + float minX = [ position pointValue ].x; + float minY = [ position pointValue ].y; + float maxX = minX + [ size sizeValue ].width; + float maxY = minY + [ size sizeValue ].height; + if ( minX < point.x && maxX > point.x && minY < point.y && maxY > point.y ) { + hit = true; + } + } + [ pool release ]; + return hit; +} + +static Reference < XAccessibleContext > hitTestRunner ( css::awt::Point point, + Reference < XAccessibleContext > const & rxAccessibleContext ) { + Reference < XAccessibleContext > hitChild; + Reference < XAccessibleContext > emptyReference; + try { + Reference < XAccessibleComponent > rxAccessibleComponent ( rxAccessibleContext, UNO_QUERY ); + if ( rxAccessibleComponent.is() ) { + css::awt::Point location = rxAccessibleComponent -> getLocationOnScreen(); + css::awt::Point hitPoint ( point.X - location.X , point.Y - location.Y); + Reference < XAccessible > rxAccessible = rxAccessibleComponent -> getAccessibleAtPoint ( hitPoint ); + if ( rxAccessible.is() && rxAccessible -> getAccessibleContext().is() && + rxAccessible -> getAccessibleContext() -> getAccessibleChildCount() == 0 ) { + hitChild = rxAccessible -> getAccessibleContext(); + } + } + + // iterate the hierarchy looking doing recursive hit testing. + // apparently necessary as a special treatment for e.g. comboboxes + if ( !hitChild.is() ) { + bool bSafeToIterate = true; + sal_Int32 nCount = rxAccessibleContext -> getAccessibleChildCount(); + + if (nCount < 0 || nCount > SAL_MAX_UINT16 /* slow enough for anyone */) + bSafeToIterate = false; + else { // manages descendants is an horror from the a11y standards guys. + Reference< XAccessibleStateSet > xStateSet; + xStateSet = rxAccessibleContext -> getAccessibleStateSet(); + if (xStateSet.is() && xStateSet -> contains(AccessibleStateType::MANAGES_DESCENDANTS ) ) + bSafeToIterate = false; + } + + if( bSafeToIterate ) { + for ( int i = 0; i < rxAccessibleContext -> getAccessibleChildCount(); i++ ) { + Reference < XAccessible > rxAccessibleChild = rxAccessibleContext -> getAccessibleChild ( i ); + if ( rxAccessibleChild.is() && rxAccessibleChild -> getAccessibleContext().is() && rxAccessibleChild -> getAccessibleContext() -> getAccessibleRole() != AccessibleRole::LIST ) { + Reference < XAccessibleContext > myHitChild = hitTestRunner ( point, rxAccessibleChild -> getAccessibleContext() ); + if ( myHitChild.is() ) { + hitChild = myHitChild; + break; + } + } + } + } + } + } catch ( RuntimeException ) { + return emptyReference; + } + return hitChild; +} + +-(id)accessibilityHitTest:(NSPoint)point { + SAL_INFO("vcl.a11y", "[" << self << " accessibilityHitTest:" << point << "]"); + static id wrapper = nil; + if ( nil != wrapper ) { + [ wrapper release ]; + wrapper = nil; + } + Reference < XAccessibleContext > hitChild; + NSRect screenRect = [ [ NSScreen mainScreen ] frame ]; + css::awt::Point hitPoint ( static_cast<sal_Int32>(point.x) , static_cast<sal_Int32>(screenRect.size.height - point.y) ); + // check child windows first + NSWindow * window = static_cast<NSWindow *>([ self accessibilityAttributeValue: NSAccessibilityWindowAttribute ]); + NSArray * childWindows = [ window childWindows ]; + if ( [ childWindows count ] > 0 ) { + NSWindow * element = nil; + NSEnumerator * enumerator = [ childWindows objectEnumerator ]; + while ( ( element = [ enumerator nextObject ] ) && !hitChild.is() ) { + if ( [ element isKindOfClass: [ SalFrameWindow class ] ] && [ self isViewElement: element hitByPoint: point ] ) { + // we have a child window that is hit + Reference < XAccessibleRelationSet > relationSet = [ static_cast<SalFrameWindow *>(element) accessibleContext ] -> getAccessibleRelationSet(); + if ( relationSet.is() && relationSet -> containsRelation ( AccessibleRelationType::SUB_WINDOW_OF )) { + // we have a valid relation to the parent element + AccessibleRelation const relation = relationSet -> getRelationByType ( AccessibleRelationType::SUB_WINDOW_OF ); + for ( const auto & i : relation.TargetSet ) { + Reference < XAccessible > rxAccessible ( i, UNO_QUERY ); + if ( rxAccessible.is() && rxAccessible -> getAccessibleContext().is() ) { + // hit test for children of parent + hitChild = hitTestRunner ( hitPoint, rxAccessible -> getAccessibleContext() ); + if (hitChild.is()) + break; + } + } + } + } + } + } + // nothing hit yet, so check ourself + if ( ! hitChild.is() ) { + if ( !mpReferenceWrapper ) { + [ self setDefaults: [ self accessibleContext ] ]; + } + hitChild = hitTestRunner ( hitPoint, mpReferenceWrapper -> rAccessibleContext ); + } + if ( hitChild.is() ) { + wrapper = [ AquaA11yFactory wrapperForAccessibleContext: hitChild ]; + } + if ( wrapper ) { + [ wrapper retain ]; // TODO: retain only when transient ? + } + return wrapper; +} + +#pragma mark - +#pragma mark Access Methods + +-(XAccessibleAction *)accessibleAction { + return mpReferenceWrapper -> rAccessibleAction.get(); +} + +-(XAccessibleContext *)accessibleContext { + return mpReferenceWrapper -> rAccessibleContext.get(); +} + +-(XAccessibleComponent *)accessibleComponent { + return mpReferenceWrapper -> rAccessibleComponent.get(); +} + +-(XAccessibleExtendedComponent *)accessibleExtendedComponent { + return mpReferenceWrapper -> rAccessibleExtendedComponent.get(); +} + +-(XAccessibleSelection *)accessibleSelection { + return mpReferenceWrapper -> rAccessibleSelection.get(); +} + +-(XAccessibleTable *)accessibleTable { + return mpReferenceWrapper -> rAccessibleTable.get(); +} + +-(XAccessibleText *)accessibleText { + return mpReferenceWrapper -> rAccessibleText.get(); +} + +-(XAccessibleEditableText *)accessibleEditableText { + return mpReferenceWrapper -> rAccessibleEditableText.get(); +} + +-(XAccessibleValue *)accessibleValue { + return mpReferenceWrapper -> rAccessibleValue.get(); +} + +-(XAccessibleTextAttributes *)accessibleTextAttributes { + return mpReferenceWrapper -> rAccessibleTextAttributes.get(); +} + +-(XAccessibleMultiLineText *)accessibleMultiLineText { + return mpReferenceWrapper -> rAccessibleMultiLineText.get(); +} + +-(XAccessibleTextMarkup *)accessibleTextMarkup { + return mpReferenceWrapper -> rAccessibleTextMarkup.get(); +} + +-(NSWindow*)windowForParent { + return [self window]; +} + +-(void)setActsAsRadioGroup:(BOOL)actsAsRadioGroup { + mActsAsRadioGroup = actsAsRadioGroup; +} + +-(BOOL)actsAsRadioGroup { + return mActsAsRadioGroup; +} + ++(void)setPopupMenuOpen:(BOOL)popupMenuOpen { + isPopupMenuOpen = popupMenuOpen; +} + +@end + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |