xref: /aoo4110/main/vcl/aqua/source/a11y/aqua11ywrappercombobox.mm (revision b1cdbd2c)

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 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#include "aqua/salinst.h"

#include "aqua11ywrappercombobox.h"
#include "aqua11yrolehelper.h"

#include <com/sun/star/accessibility/AccessibleStateType.hpp>

using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;

// Wrapper for AXCombobox role

@implementation AquaA11yWrapperComboBox : AquaA11yWrapper

#pragma mark -
#pragma mark Specialized Init Method

-(id)initWithAccessibleContext: (Reference < XAccessibleContext >) rxAccessibleContext {
    self = [ super initWithAccessibleContext: rxAccessibleContext ];
    if ( self != nil )
    {
        textArea = nil;
    }
    return self;
}

#pragma mark -
#pragma mark Private Helper Method

-(AquaA11yWrapper *)textArea {
    // FIXME: May cause problems when stored. Then get dynamically each time (bad performance!)
    if ( textArea == nil ) {
        NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
        NSArray * elementChildren = [ super childrenAttribute ];
        if ( [ elementChildren count ] > 0 ) {
            NSEnumerator * enumerator = [ elementChildren objectEnumerator ];
            id child;
            while ( ( child = [ enumerator nextObject ] ) ) {
                AquaA11yWrapper * element = ( AquaA11yWrapper * ) child;
                if ( [ [ AquaA11yRoleHelper getNativeRoleFrom: [ element accessibleContext ] ] isEqualToString: NSAccessibilityTextAreaRole ] ) {
                    textArea = element;
                    break;
                }
            }
        }
        [ pool release ];
    }
    return textArea;
}

#pragma mark -
#pragma mark Wrapped Attributes From Contained Text Area

-(id)valueAttribute {
    if ( [ self textArea ] != nil ) {
        return [ [ self textArea ] valueAttribute ];
    }
    return @"";
}

-(id)numberOfCharactersAttribute {
    if ( [ self textArea ] != nil ) {
        return [ [ self textArea ] numberOfCharactersAttribute ];
    }
    return [ NSNumber numberWithInt: 0 ];
}

-(id)selectedTextAttribute {
    if ( [ self textArea ] != nil ) {
        return [ [ self textArea ] selectedTextAttribute ];
    }
    return @"";
}

-(id)selectedTextRangeAttribute {
    if ( [ self textArea ] != nil ) {
        return [ [ self textArea ] selectedTextRangeAttribute ];
    }
    return [ NSValue valueWithRange: NSMakeRange ( 0, 0 ) ];
}

-(id)visibleCharacterRangeAttribute {
    if ( [ self textArea ] != nil ) {
        return [ [ self textArea ] visibleCharacterRangeAttribute ];
    }
    return [ NSValue valueWithRange: NSMakeRange ( 0, 0 ) ];
}

#pragma mark -
#pragma mark Accessibility Protocol

-(BOOL)accessibilityIsAttributeSettable:(NSString *)attribute {
    if ( [ self textArea ] != nil && (
         [ attribute isEqualToString: NSAccessibilitySelectedTextAttribute ]
      || [ attribute isEqualToString: NSAccessibilitySelectedTextRangeAttribute ]
      || [ attribute isEqualToString: NSAccessibilityVisibleCharacterRangeAttribute ] ) ) {
        return [ [ self textArea ] accessibilityIsAttributeSettable: attribute ];
    }
    return [ super accessibilityIsAttributeSettable: attribute ];
}

-(void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute {
    if ( [ self textArea ] != nil && (
         [ attribute isEqualToString: NSAccessibilitySelectedTextAttribute ]
      || [ attribute isEqualToString: NSAccessibilitySelectedTextRangeAttribute ]
      || [ attribute isEqualToString: NSAccessibilityVisibleCharacterRangeAttribute ] ) ) {
        return [ [ self textArea ] accessibilitySetValue: value forAttribute: attribute ];
    }
    return [ super accessibilitySetValue: value forAttribute: attribute ];
}

-(NSArray *)accessibilityAttributeNames {
    // Default Attributes
    NSMutableArray * attributeNames = [ NSMutableArray arrayWithArray: [ super accessibilityAttributeNames ] ];
    // Special Attributes and removing unwanted attributes depending on role
    [ attributeNames removeObjectsInArray: [ NSArray arrayWithObjects:
            NSAccessibilityTitleAttribute,
            NSAccessibilityChildrenAttribute,
            nil ]
    ];
    [ attributeNames addObjectsFromArray: [ NSArray arrayWithObjects:
            NSAccessibilityExpandedAttribute,
            NSAccessibilityValueAttribute,
            NSAccessibilityNumberOfCharactersAttribute,
            NSAccessibilitySelectedTextAttribute,
            NSAccessibilitySelectedTextRangeAttribute,
            NSAccessibilityVisibleCharacterRangeAttribute,
            nil ]
    ];
    return attributeNames;
}

@end