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/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "TestFontOptions.h"
#if PLATFORM(MAC)
#import "AppKitSPI.h"
#import "ClassMethodSwizzler.h"
#import <objc/runtime.h>
#import <wtf/RetainPtr.h>
#import <wtf/SetForScope.h>
static TestFontOptions *sharedFontOptionsForTesting()
{
return TestFontOptions.sharedInstance;
}
@interface TestFontOptions ()
- (instancetype)initWithFontOptions:(NSFontOptions *)fontOptions;
@end
@implementation TestFontOptions {
RetainPtr<NSFontOptions> _fontOptions;
CGSize _shadowOffset;
CGFloat _shadowBlurRadius;
BOOL _hasShadow;
BOOL _hasPendingShadowChanges;
RetainPtr<NSColor> _foregroundColor;
RetainPtr<NSColor> _backgroundColor;
BOOL _hasPendingColorChanges;
std::unique_ptr<ClassMethodSwizzler> _replaceFontOptionsSwizzler;
RetainPtr<NSDictionary> _selectedAttributes;
BOOL _hasMultipleFonts;
}
@synthesize hasShadow = _hasShadow;
@synthesize shadowBlurRadius = _shadowBlurRadius;
@synthesize hasMultipleFonts = _hasMultipleFonts;
+ (instancetype)sharedInstance
{
static RetainPtr<TestFontOptions> sharedInstance;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
NSFontOptions *sharedFontOptions = [NSClassFromString(@"NSFontOptions") sharedFontOptions];
sharedInstance = adoptNS([[TestFontOptions alloc] initWithFontOptions:sharedFontOptions]);
});
return sharedInstance.get();
}
- (instancetype)initWithFontOptions:(NSFontOptions *)fontOptions
{
if (!(self = [super init]))
return nil;
_fontOptions = fontOptions;
ASSERT(_fontOptions);
_shadowOffset = CGSizeZero;
_shadowBlurRadius = 0;
_replaceFontOptionsSwizzler = makeUnique<ClassMethodSwizzler>(NSClassFromString(@"NSFontOptions"), @selector(sharedFontOptions), reinterpret_cast<IMP>(sharedFontOptionsForTesting));
_hasPendingShadowChanges = NO;
_hasMultipleFonts = NO;
return self;
}
- (NSDictionary *)selectedAttributes
{
return _selectedAttributes.get();
}
- (NSFontOptions *)fontOptions
{
return _fontOptions.get();
}
- (CGFloat)shadowWidth
{
return _shadowOffset.width;
}
- (void)setShadowWidth:(CGFloat)shadowWidth
{
if (_shadowOffset.width == shadowWidth)
return;
SetForScope hasPendingFontShadowChanges(_hasPendingShadowChanges, YES);
_shadowOffset.width = shadowWidth;
[self _dispatchFontAttributeChanges];
}
- (CGFloat)shadowHeight
{
return _shadowOffset.height;
}
- (void)setShadowHeight:(CGFloat)shadowHeight
{
if (_shadowOffset.height == shadowHeight)
return;
SetForScope hasPendingFontShadowChanges(_hasPendingShadowChanges, YES);
_shadowOffset.height = shadowHeight;
[self _dispatchFontAttributeChanges];
}
- (void)setShadowBlurRadius:(CGFloat)shadowBlurRadius
{
if (_shadowBlurRadius == shadowBlurRadius)
return;
SetForScope hasPendingFontShadowChanges(_hasPendingShadowChanges, YES);
_shadowBlurRadius = shadowBlurRadius;
[self _dispatchFontAttributeChanges];
}
- (void)setHasShadow:(BOOL)hasShadow
{
if (_hasShadow == hasShadow)
return;
SetForScope hasPendingFontShadowChanges(_hasPendingShadowChanges, YES);
_hasShadow = hasShadow;
[self _dispatchFontAttributeChanges];
}
- (NSColor *)foregroundColor
{
return _foregroundColor.get();
}
- (void)setForegroundColor:(NSColor *)color
{
SetForScope hasPendingColorChanges(_hasPendingColorChanges, YES);
_foregroundColor = adoptNS([color copy]);
[self _dispatchFontAttributeChanges];
}
- (NSColor *)backgroundColor
{
return _backgroundColor.get();
}
- (void)setBackgroundColor:(NSColor *)color
{
SetForScope hasPendingColorChanges(_hasPendingColorChanges, YES);
_backgroundColor = adoptNS([color copy]);
[self _dispatchFontAttributeChanges];
}
- (void)_dispatchFontAttributeChanges
{
[NSFontManager.sharedFontManager.target performSelector:@selector(changeAttributes:) withObject:self];
}
- (NSDictionary *)convertAttributes:(NSDictionary *)attributes
{
auto convertedAttributes = adoptNS([attributes mutableCopy]);
if (_hasPendingShadowChanges) {
if (_hasShadow) {
auto shadow = adoptNS([[NSShadow alloc] init]);
[shadow setShadowBlurRadius:_shadowBlurRadius];
[shadow setShadowOffset:_shadowOffset];
[convertedAttributes setObject:shadow.get() forKey:NSShadowAttributeName];
} else
[convertedAttributes removeObjectForKey:NSShadowAttributeName];
}
if (_hasPendingColorChanges) {
if (_foregroundColor)
[convertedAttributes setObject:_foregroundColor.get() forKey:NSForegroundColorAttributeName];
else
[convertedAttributes removeObjectForKey:NSForegroundColorAttributeName];
if (_backgroundColor)
[convertedAttributes setObject:_backgroundColor.get() forKey:NSBackgroundColorAttributeName];
else
[convertedAttributes removeObjectForKey:NSBackgroundColorAttributeName];
}
return convertedAttributes.autorelease();
}
- (void)setSelectedAttributes:(NSDictionary *)attributes isMultiple:(BOOL)multiple
{
_hasMultipleFonts = multiple;
_selectedAttributes = attributes;
}
- (void)forwardInvocation:(NSInvocation *)invocation
{
if ([_fontOptions respondsToSelector:invocation.selector]) {
[invocation invokeWithTarget:_fontOptions.get()];
return;
}
[super forwardInvocation:invocation];
}
@end
#endif // PLATFORM(MAC)