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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
 * KIND, either express or implied.  See the License for the
 * 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 "aqua11ycomponentwrapper.h"
#include "aqua11yrolehelper.h"
#include <com/sun/star/accessibility/AccessibleRole.hpp>

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

// Wrapper for XAccessibleComponent and XAccessibleExtendedComponent

@implementation AquaA11yComponentWrapper : NSObject

+(id)sizeAttributeForElement:(AquaA11yWrapper *)wrapper {
    Size size = [ wrapper accessibleComponent ] -> getSize();
    NSSize nsSize = NSMakeSize ( (float) size.Width, (float) size.Height );
    return [ NSValue valueWithSize: nsSize ];
}

// TODO: should be merged with AquaSalFrame::VCLToCocoa... to a general helper method
+(id)positionAttributeForElement:(AquaA11yWrapper *)wrapper {
    // VCL coordinates are in upper-left-notation, Cocoa likes it the Cartesian way (lower-left)
    NSRect screenRect = [ [ NSScreen mainScreen ] frame ];
    Size size = [ wrapper accessibleComponent ] -> getSize();
    Point location = [ wrapper accessibleComponent ] -> getLocationOnScreen();
    NSPoint nsPoint = NSMakePoint ( (float) location.X, (float) ( screenRect.size.height - size.Height - location.Y ) );
    return [ NSValue valueWithPoint: nsPoint ];
}

+(id)descriptionAttributeForElement:(AquaA11yWrapper *)wrapper {
    if ( [ wrapper accessibleExtendedComponent ] != nil ) {
        return CreateNSString ( [ wrapper accessibleExtendedComponent ] -> getToolTipText() );
    } else {
        return nil;
    }
}

+(void)addAttributeNamesTo:(NSMutableArray *)attributeNames {
    NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
    [ attributeNames addObjectsFromArray: [ NSArray arrayWithObjects: 
            NSAccessibilitySizeAttribute, 
            NSAccessibilityPositionAttribute, 
            NSAccessibilityFocusedAttribute, 
            NSAccessibilityEnabledAttribute, 
            nil ] ];
    [ pool release ];
}

+(BOOL)isAttributeSettable:(NSString *)attribute forElement:(AquaA11yWrapper *)wrapper {
    BOOL isSettable = NO;
    NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
    if ( [ attribute isEqualToString: NSAccessibilityFocusedAttribute ] 
      && ! [ [ AquaA11yRoleHelper getNativeRoleFrom: [ wrapper accessibleContext ] ] isEqualToString: NSAccessibilityScrollBarRole ] 
      && ! [ [ AquaA11yRoleHelper getNativeRoleFrom: [ wrapper accessibleContext ] ] isEqualToString: NSAccessibilityStaticTextRole ] ) {
        isSettable = YES;
    }
    [ pool release ];
    return isSettable;
}

+(void)setFocusedAttributeForElement:(AquaA11yWrapper *)wrapper to:(id)value {
    if ( [ value boolValue ] == YES ) {
        if ( [ wrapper accessibleContext ] -> getAccessibleRole() == AccessibleRole::COMBO_BOX ) {
            // special treatment for comboboxes: find the corresponding PANEL and set focus to it
            Reference < XAccessible > rxParent = [ wrapper accessibleContext ] -> getAccessibleParent();
            if ( rxParent.is() ) {
                Reference < XAccessibleContext > rxContext = rxParent->getAccessibleContext();
                if ( rxContext.is() && rxContext -> getAccessibleRole() == AccessibleRole::PANEL ) {
                    Reference < XAccessibleComponent > rxComponent = Reference < XAccessibleComponent > ( rxParent -> getAccessibleContext(), UNO_QUERY );
                    if ( rxComponent.is() ) {
                        rxComponent -> grabFocus();
                    }
                }
            }
        } else {
            [ wrapper accessibleComponent ] -> grabFocus();
        }
    }
}

@end