/* -*- 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 <quartz/utils.h>
#include <quartz/salgdi.h>
#include "a11ytextattributeswrapper.h"
#include <com/sun/star/accessibility/AccessibleTextType.hpp>
#include <com/sun/star/awt/FontSlant.hpp>
#include <com/sun/star/awt/FontUnderline.hpp>
#include <com/sun/star/awt/FontWeight.hpp>
#include <com/sun/star/awt/FontStrikeout.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/text/TextMarkupType.hpp>
#include <com/sun/star/style/ParagraphAdjust.hpp>
namespace css_awt = ::com::sun::star::awt;
using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::uno;
// cannot use NSFontDescriptor as it has no notion of explicit NSUn{bold,italic}FontMask
@interface AquaA11yFontDescriptor : NSObject
{
NSString *_name;
NSFontTraitMask _traits;
CGFloat _size;
}
-(void)setName:(NSString*)name;
-(void)setBold:(NSFontTraitMask)bold;
-(void)setItalic:(NSFontTraitMask)italic;
-(void)setSize:(CGFloat)size;
-(NSFont*)font;
@end
@implementation AquaA11yFontDescriptor
- (id)init
{
if((self = [super init]))
{
_name = nil;
_traits = 0;
_size = 0.0;
}
return self;
}
- (id)initWithDescriptor:(AquaA11yFontDescriptor*)descriptor {
if((self = [super init]))
{
_name = [descriptor->_name retain];
_traits = descriptor->_traits;
_size = descriptor->_size;
}
return self;
}
- (void)dealloc {
[_name release];
[super dealloc];
}
-(void)setName:(NSString*)name {
if (_name != name) {
[name retain];
[_name release];
_name = name;
}
}
-(void)setBold:(NSFontTraitMask)bold {
_traits &= ~(NSBoldFontMask | NSUnboldFontMask);
_traits |= bold & (NSBoldFontMask | NSUnboldFontMask);
};
-(void)setItalic:(NSFontTraitMask)italic {
_traits &= ~(NSItalicFontMask | NSUnitalicFontMask);
_traits |= italic & (NSItalicFontMask | NSUnitalicFontMask);
};
-(void)setSize:(CGFloat)size { _size = size; }
-(NSFont*)font {
return [[NSFontManager sharedFontManager] fontWithFamily:_name traits:_traits weight:
0 size:_size];
}
@end
@implementation AquaA11yTextAttributesWrapper : NSObject
+(int)convertUnderlineStyle:(PropertyValue)property {
int underlineStyle = NSUnderlineStyleNone;
sal_Int16 value = 0;
property.Value >>= value;
if ( value != ::css_awt::FontUnderline::NONE
&& value != ::css_awt::FontUnderline::DONTKNOW) {
underlineStyle = NSUnderlineStyleSingle;
}
return underlineStyle;
}
+(int)convertBoldStyle:(PropertyValue)property {
int boldStyle = NSUnboldFontMask;
float value = 0;
property.Value >>= value;
if ( value == ::css_awt::FontWeight::SEMIBOLD
|| value == ::css_awt::FontWeight::BOLD
|| value == ::css_awt::FontWeight::ULTRABOLD
|| value == ::css_awt::FontWeight::BLACK ) {
boldStyle = NSBoldFontMask;
}
return boldStyle;
}
+(int)convertItalicStyle:(PropertyValue)property {
int italicStyle = NSUnitalicFontMask;
::css_awt::FontSlant value = property.Value.get< ::css_awt::FontSlant>();
if ( value == ::css_awt::FontSlant_ITALIC ) {
italicStyle = NSItalicFontMask;
}
return italicStyle;
}
+(BOOL)isStrikethrough:(PropertyValue)property {
bool strikethrough = false;
sal_Int16 value = 0;
property.Value >>= value;
if ( value != ::css_awt::FontStrikeout::NONE
&& value != ::css_awt::FontStrikeout::DONTKNOW ) {
strikethrough = true;
}
return strikethrough;
}
+(BOOL)convertBoolean:(PropertyValue)property {
bool myBoolean = false;
bool value = false;
property.Value >>= value;
if ( value ) {
myBoolean = true;
}
return myBoolean;
}
+(NSNumber *)convertShort:(PropertyValue)property {
sal_Int16 value = 0;
property.Value >>= value;
return [ NSNumber numberWithShort: value ];
}
+(void)addColor:(Color)nColor forAttribute:(NSString *)attribute andRange:(NSRange)range toString:(NSMutableAttributedString *)string {
if( nColor == COL_TRANSPARENT )
return;
const RGBAColor aRGBAColor( nColor);
CGColorRef aColorRef = CGColorCreate ( CGColorSpaceCreateWithName ( kCGColorSpaceGenericRGB ), aRGBAColor.AsArray() );
[ string addAttribute: attribute value: reinterpret_cast<id>(aColorRef) range: range ];
CGColorRelease( aColorRef );
}
+(void)addFont:(NSFont *)font toString:(NSMutableAttributedString *)string forRange:(NSRange)range {
if ( font != nil ) {
NSDictionary * fontDictionary = [ NSDictionary dictionaryWithObjectsAndKeys:
[ font fontName ], NSAccessibilityFontNameKey,
[ font familyName ], NSAccessibilityFontFamilyKey,
[ font displayName ], NSAccessibilityVisibleNameKey,
[ NSNumber numberWithFloat: [ font pointSize ] ], NSAccessibilityFontSizeKey,
nil
];
[ string addAttribute: NSAccessibilityFontTextAttribute
value: fontDictionary
range: range
];
}
}
+(void)applyAttributesFrom:(Sequence < PropertyValue > const &)attributes toString:(NSMutableAttributedString *)string forRange:(NSRange)range fontDescriptor:(AquaA11yFontDescriptor*)fontDescriptor {
NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
// vars
sal_Int32 underlineColor = 0;
bool underlineHasColor = false;
// add attributes to string
for ( const PropertyValue& property : attributes ) {
// TODO: NSAccessibilityAttachmentTextAttribute, NSAccessibilityLinkTextAttribute
// NSAccessibilityStrikethroughColorTextAttribute is unsupported by UNP-API
if ( property.Value.hasValue() ) {
if ( property.Name == "CharUnderline" ) {
int style = [ AquaA11yTextAttributesWrapper convertUnderlineStyle: property ];
if ( style != NSUnderlineStyleNone ) {
[ string addAttribute: NSAccessibilityUnderlineTextAttribute value: [ NSNumber numberWithInt: style ] range: range ];
}
} else if ( property.Name == "CharFontName" ) {
OUString fontname;
property.Value >>= fontname;
// Related tdf#158914: explicitly call autorelease selector
// CreateNSString() is not a getter. It expects the caller to
// release the returned string.
[ fontDescriptor setName: [ CreateNSString(fontname) autorelease ] ];
} else if ( property.Name == "CharWeight" ) {
[fontDescriptor setBold:[AquaA11yTextAttributesWrapper convertBoldStyle:property]];
} else if ( property.Name == "CharPosture" ) {
[fontDescriptor setItalic:[AquaA11yTextAttributesWrapper convertItalicStyle:property]];
} else if ( property.Name == "CharHeight" ) {
float size;
property.Value >>= size;
[fontDescriptor setSize:size];
} else if ( property.Name == "CharStrikeout" ) {
if ( [ AquaA11yTextAttributesWrapper isStrikethrough: property ] ) {
[ string addAttribute: NSAccessibilityStrikethroughTextAttribute value: [ NSNumber numberWithBool: YES ] range: range ];
}
} else if ( property.Name == "CharShadowed" ) {
if ( [ AquaA11yTextAttributesWrapper convertBoolean: property ] ) {
[ string addAttribute: NSAccessibilityShadowTextAttribute value: [ NSNumber numberWithBool: YES ] range: range ];
}
} else if ( property.Name == "CharUnderlineColor" ) {
property.Value >>= underlineColor;
} else if ( property.Name == "CharUnderlineHasColor" ) {
underlineHasColor = [ AquaA11yTextAttributesWrapper convertBoolean: property ];
} else if ( property.Name == "CharColor" ) {
[ AquaA11yTextAttributesWrapper addColor: Color(ColorTransparency, property.Value.get<sal_Int32>()) forAttribute: NSAccessibilityForegroundColorTextAttribute andRange: range toString: string ];
} else if ( property.Name == "CharBackColor" ) {
[ AquaA11yTextAttributesWrapper addColor: Color(ColorTransparency, property.Value.get<sal_Int32>()) forAttribute: NSAccessibilityBackgroundColorTextAttribute andRange: range toString: string ];
} else if ( property.Name == "CharEscapement" ) {
// values < zero mean subscript
// values > zero mean superscript
// this is true for both NSAccessibility-API and UNO-API
NSNumber * number = [ AquaA11yTextAttributesWrapper convertShort: property ];
if ( [ number shortValue ] != 0 ) {
[ string addAttribute: NSAccessibilitySuperscriptTextAttribute value: number range: range ];
}
} else if ( property.Name == "ParaAdjust" ) {
sal_Int32 alignment;
property.Value >>= alignment;
NSNumber *textAlignment = nil;
switch(static_cast<css::style::ParagraphAdjust>(alignment)) {
case css::style::ParagraphAdjust_RIGHT:
textAlignment = [NSNumber numberWithInteger:NSTextAlignmentRight];
break;
case css::style::ParagraphAdjust_CENTER:
textAlignment = [NSNumber numberWithInteger:NSTextAlignmentCenter];
break;
case css::style::ParagraphAdjust_BLOCK:
textAlignment = [NSNumber numberWithInteger:NSTextAlignmentJustified];
break;
case css::style::ParagraphAdjust_LEFT:
default:
textAlignment = [NSNumber numberWithInteger:NSTextAlignmentLeft];
break;
}
NSDictionary *paragraphStyle = [NSDictionary dictionaryWithObjectsAndKeys:textAlignment, @"AXTextAlignment", textAlignment, @"AXVisualTextAlignment", nil];
[string addAttribute:@"AXParagraphStyle" value:paragraphStyle range:range];
}
}
}
// add underline information
if ( underlineHasColor ) {
[ AquaA11yTextAttributesWrapper addColor: Color(ColorTransparency, underlineColor) forAttribute: NSAccessibilityUnderlineColorTextAttribute andRange: range toString: string ];
}
// add font information
NSFont * font = [fontDescriptor font];
[AquaA11yTextAttributesWrapper addFont:font toString:string forRange:range];
[ pool release ];
}
+(void)addMarkup:(XAccessibleTextMarkup*)markup withType:(sal_Int32)type toString:(NSMutableAttributedString*)string inRange:(NSRange)range {
const sal_Int32 markupCount = markup->getTextMarkupCount(type);
for (sal_Int32 markupIndex = 0; markupIndex < markupCount; ++markupIndex) {
TextSegment markupSegment = markup->getTextMarkup(markupIndex, type);
NSRange markupRange = NSMakeRange(markupSegment.SegmentStart, markupSegment.SegmentEnd - markupSegment.SegmentStart);
markupRange = NSIntersectionRange(range, markupRange);
if (markupRange.length > 0) {
markupRange.location -= range.location;
switch(type) {
case css::text::TextMarkupType::SPELLCHECK: {
[string addAttribute:NSAccessibilityMisspelledTextAttribute value:[NSNumber numberWithBool:YES] range:markupRange];
[string addAttribute:@"AXMarkedMisspelled" value:[NSNumber numberWithBool:YES] range:markupRange];
break;
}
}
}
}
}
+(void)addMarkup:(XAccessibleTextMarkup*)markup toString:(NSMutableAttributedString*)string inRange:(NSRange)range {
[AquaA11yTextAttributesWrapper addMarkup:markup withType:css::text::TextMarkupType::SPELLCHECK toString:string inRange:range];
}
// tdf#148453 Fix crash by turning off optimization for Objective-C selector
// The default attributes sequence sometimes crashes when it is released but
// only when compiler optimization is enabled, so disable optimization for the
// +[AquaA11yTextAttributesWrapper createAttributedStringForElement] selector.
+(NSMutableAttributedString *)createAttributedStringForElement:(AquaA11yWrapper *)wrapper inOrigRange:(id)origRange __attribute__((optnone)) {
static const Sequence < OUString > emptySequence;
// vars
NSMutableAttributedString * string = nil;
int loc = [ origRange rangeValue ].location;
int len = [ origRange rangeValue ].length;
int endIndex = loc + len;
int currentIndex = loc;
try {
// Related tdf#158914: explicitly call autorelease selector
// CreateNSString() is not a getter. It expects the caller to
// release the returned string.
NSString * myString = [ CreateNSString ( [ wrapper accessibleText ] -> getText() ) autorelease ]; // TODO: dirty fix for i87817
string = [ [ NSMutableAttributedString alloc ] initWithString: [ CreateNSString ( [ wrapper accessibleText ] -> getTextRange ( loc, loc + len ) ) autorelease ] ];
[ string autorelease ];
if ( [ wrapper accessibleTextAttributes ] && [myString characterAtIndex:0] != 57361) { // TODO: dirty fix for i87817
[ string beginEditing ];
// add default attributes for whole string
Sequence < PropertyValue > defaultAttributes = [ wrapper accessibleTextAttributes ] -> getDefaultAttributes ( emptySequence );
AquaA11yFontDescriptor *defaultFontDescriptor = [[AquaA11yFontDescriptor alloc] init];
[ AquaA11yTextAttributesWrapper applyAttributesFrom: defaultAttributes toString: string forRange: NSMakeRange ( 0, len ) fontDescriptor: defaultFontDescriptor ];
// add attributes for attribute run(s)
while ( currentIndex < endIndex ) {
TextSegment textSegment = [ wrapper accessibleText ] -> getTextAtIndex ( currentIndex, AccessibleTextType::ATTRIBUTE_RUN );
int endOfRange = endIndex > textSegment.SegmentEnd ? textSegment.SegmentEnd : endIndex;
NSRange rangeForAttributeRun = NSMakeRange ( currentIndex - loc , endOfRange - currentIndex );
// add run attributes
Sequence < PropertyValue > attributes = [ wrapper accessibleTextAttributes ] -> getRunAttributes ( currentIndex, emptySequence );
AquaA11yFontDescriptor *fontDescriptor = [[AquaA11yFontDescriptor alloc] initWithDescriptor:defaultFontDescriptor];
[ AquaA11yTextAttributesWrapper applyAttributesFrom: attributes toString: string forRange: rangeForAttributeRun fontDescriptor: fontDescriptor ];
[fontDescriptor release];
currentIndex = textSegment.SegmentEnd;
}
[defaultFontDescriptor release];
if ([wrapper accessibleTextMarkup])
[AquaA11yTextAttributesWrapper addMarkup:[wrapper accessibleTextMarkup] toString:string inRange:[origRange rangeValue]];
[ string endEditing ];
}
} catch ( IllegalArgumentException & ) {
// empty
} catch ( IndexOutOfBoundsException & ) {
// empty
} catch ( RuntimeException& ) {
// at least don't crash
}
return string;
}
@end
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