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SquirrelPanel.mm
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#import "SquirrelPanel.hh"
#import "SquirrelApplicationDelegate.hh"
#import "SquirrelConfig.hh"
#import <QuartzCore/QuartzCore.h>
static NSString* const kDefaultCandidateFormat = @"%c. %@";
static NSString* const kTipSpecifier = @"%s";
static NSString* const kFullWidthSpace = @" ";
static const NSTimeInterval kShowStatusDuration = 2.0;
static const CGFloat kBlendedBackgroundColorFraction = 0.2;
static const CGFloat kDefaultFontSize = 24;
static const CGFloat kOffsetGap = 5;
@interface NSBezierPath (BezierPathQuartzUtilities)
@property(nonatomic, readonly) CGPathRef quartzPath;
@end
@implementation NSBezierPath (BezierPathQuartzUtilities)
- (CGPathRef)quartzPath {
if (@available(macOS 14.0, *)) {
return self.CGPath;
}
// Need to begin a path here.
CGPathRef immutablePath = NULL;
// Then draw the path elements.
NSInteger numElements = self.elementCount;
if (numElements > 0) {
CGMutablePathRef path = CGPathCreateMutable();
NSPoint points[3];
for (NSInteger i = 0; i < numElements; i++) {
switch ([self elementAtIndex:i associatedPoints:points]) {
case NSBezierPathElementMoveTo:
CGPathMoveToPoint(path, NULL, points[0].x, points[0].y);
break;
case NSBezierPathElementLineTo:
CGPathAddLineToPoint(path, NULL, points[0].x, points[0].y);
break;
case NSBezierPathElementCurveTo:
CGPathAddCurveToPoint(path, NULL, points[0].x, points[0].y,
points[1].x, points[1].y, points[2].x,
points[2].y);
break;
case NSBezierPathElementQuadraticCurveTo:
CGPathAddQuadCurveToPoint(path, NULL, points[0].x, points[0].y,
points[1].x, points[1].y);
break;
case NSBezierPathElementClosePath:
CGPathCloseSubpath(path);
break;
}
}
immutablePath = (CGPathRef)CFAutorelease(CGPathCreateCopy(path));
CGPathRelease(path);
}
return immutablePath;
}
@end // NSBezierPath (BezierPathQuartzUtilities)
__attribute__((objc_direct_members))
@implementation
NSMutableAttributedString(NSMutableAttributedStringMarkDownFormatting)
- (void)superscriptionRange:(NSRange)range {
[self
enumerateAttribute:NSFontAttributeName
inRange:range
options:
NSAttributedStringEnumerationLongestEffectiveRangeNotRequired
usingBlock:^(NSFont* _Nullable value, NSRange subRange,
BOOL* _Nonnull stop) {
NSFont* font =
[NSFont fontWithDescriptor:value.fontDescriptor
size:floor(value.pointSize * 0.55)];
[self addAttributes:@{
NSFontAttributeName : font,
(id)kCTBaselineClassAttributeName :
(id)kCTBaselineClassIdeographicCentered,
NSSuperscriptAttributeName : @(1)
}
range:subRange];
}];
}
- (void)subscriptionRange:(NSRange)range {
[self
enumerateAttribute:NSFontAttributeName
inRange:range
options:
NSAttributedStringEnumerationLongestEffectiveRangeNotRequired
usingBlock:^(NSFont* _Nullable value, NSRange subRange,
BOOL* _Nonnull stop) {
NSFont* font =
[NSFont fontWithDescriptor:value.fontDescriptor
size:floor(value.pointSize * 0.55)];
[self addAttributes:@{
NSFontAttributeName : font,
(id)kCTBaselineClassAttributeName :
(id)kCTBaselineClassIdeographicCentered,
NSSuperscriptAttributeName : @(-1)
}
range:subRange];
}];
}
static NSString* const kMarkDownPattern =
@"((\\*{1,2}|\\^|~{1,2})|((?<=\\b)_{1,2})|<(b|strong|i|em|u|sup|sub|s)>)(.+"
@"?)(\\2|\\3(?=\\b)|<\\/\\4>)";
- (void)formatMarkDown {
NSRegularExpression* regex = [NSRegularExpression.alloc
initWithPattern:kMarkDownPattern
options:NSRegularExpressionUseUnicodeWordBoundaries
error:nil];
NSInteger __block offset = 0;
[regex
enumerateMatchesInString:self.mutableString
options:0
range:NSMakeRange(0, self.length)
usingBlock:^(NSTextCheckingResult* _Nullable result,
NSMatchingFlags flags, BOOL* _Nonnull stop) {
result =
[result resultByAdjustingRangesWithOffset:offset];
NSString* tag = [self.mutableString
substringWithRange:[result rangeAtIndex:1]];
if ([tag isEqualToString:@"**"] ||
[tag isEqualToString:@"__"] ||
[tag isEqualToString:@"<b>"] ||
[tag isEqualToString:@"<strong>"]) {
[self applyFontTraits:NSBoldFontMask
range:[result rangeAtIndex:5]];
} else if ([tag isEqualToString:@"*"] ||
[tag isEqualToString:@"_"] ||
[tag isEqualToString:@"<i>"] ||
[tag isEqualToString:@"<em>"]) {
[self applyFontTraits:NSItalicFontMask
range:[result rangeAtIndex:5]];
} else if ([tag isEqualToString:@"<u>"]) {
[self addAttribute:NSUnderlineStyleAttributeName
value:@(NSUnderlineStyleSingle)
range:[result rangeAtIndex:5]];
} else if ([tag isEqualToString:@"~~"] ||
[tag isEqualToString:@"<s>"]) {
[self addAttribute:NSStrikethroughStyleAttributeName
value:@(NSUnderlineStyleSingle)
range:[result rangeAtIndex:5]];
} else if ([tag isEqualToString:@"^"] ||
[tag isEqualToString:@"<sup>"]) {
[self superscriptionRange:[result rangeAtIndex:5]];
} else if ([tag isEqualToString:@"~"] ||
[tag isEqualToString:@"<sub>"]) {
[self subscriptionRange:[result rangeAtIndex:5]];
}
[self deleteCharactersInRange:[result rangeAtIndex:6]];
[self deleteCharactersInRange:[result rangeAtIndex:1]];
offset -= [result rangeAtIndex:6].length +
[result rangeAtIndex:1].length;
}];
if (offset != 0) { // repeat until no more nested markdown
[self formatMarkDown];
}
}
static NSString* const kRubyPattern =
@"(\uFFF9\\s*)(\\S+?)(\\s*\uFFFA(.+?)\uFFFB)";
- (CGFloat)annotateRubyInRange:(NSRange)range
verticalOrientation:(BOOL)isVertical
maximumLength:(CGFloat)maxLength
scriptVariant:(NSString*)scriptVariant {
NSRegularExpression* regex =
[NSRegularExpression.alloc initWithPattern:kRubyPattern
options:0
error:nil];
CGFloat __block rubyLineHeight;
[regex
enumerateMatchesInString:self.mutableString
options:0
range:range
usingBlock:^(NSTextCheckingResult* _Nullable result,
NSMatchingFlags flags, BOOL* _Nonnull stop) {
NSRange baseRange = [result rangeAtIndex:2];
// no ruby annotation if the base string includes line
// breaks
if ([self
attributedSubstringFromRange:NSMakeRange(
0,
NSMaxRange(
baseRange))]
.size.width > maxLength - 0.1) {
[self deleteCharactersInRange:NSMakeRange(
NSMaxRange(
result.range) -
1,
1)];
[self
deleteCharactersInRange:NSMakeRange(
[result rangeAtIndex:3]
.location,
1)];
[self
deleteCharactersInRange:NSMakeRange(
[result rangeAtIndex:1]
.location,
1)];
} else {
// base string must use only one font so that all fall
// within one glyph run and the ruby annotation is
// aligned with no duplicates
NSFont* baseFont = [self attribute:NSFontAttributeName
atIndex:baseRange.location
effectiveRange:NULL];
baseFont =
CFBridgingRelease(CTFontCreateForStringWithLanguage(
(CTFontRef)baseFont,
(CFStringRef)self.mutableString,
CFRangeMake((CFIndex)baseRange.location,
(CFIndex)baseRange.length),
(CFStringRef)scriptVariant));
CGFloat rubyScale = 0.5;
CFStringRef rubyString =
(__bridge CFStringRef)[self.mutableString
substringWithRange:[result rangeAtIndex:4]];
CGFloat height =
isVertical
? (baseFont.verticalFont.ascender -
baseFont.verticalFont.descender)
: (baseFont.ascender - baseFont.descender);
rubyLineHeight = ceil(height * rubyScale);
CFStringRef rubyText[kCTRubyPositionCount];
rubyText[kCTRubyPositionBefore] = rubyString;
rubyText[kCTRubyPositionAfter] = NULL;
rubyText[kCTRubyPositionInterCharacter] = NULL;
rubyText[kCTRubyPositionInline] = NULL;
CTRubyAnnotationRef rubyAnnotation =
CTRubyAnnotationCreate(
kCTRubyAlignmentDistributeSpace,
kCTRubyOverhangNone, rubyScale, rubyText);
[self deleteCharactersInRange:[result rangeAtIndex:3]];
if (@available(macOS 12.0, *)) {
} else { // use U+008B as placeholder for line-forward
// spaces in case ruby is wider than base
[self replaceCharactersInRange:NSMakeRange(
NSMaxRange(
baseRange),
0)
withString:[NSString
stringWithFormat:
@"%C", 0x8B]];
}
[self addAttributes:@{
(id)kCTRubyAnnotationAttributeName :
CFBridgingRelease(rubyAnnotation),
NSFontAttributeName : baseFont,
NSVerticalGlyphFormAttributeName : @(isVertical)
}
range:baseRange];
[self deleteCharactersInRange:[result rangeAtIndex:1]];
}
}];
[self.mutableString replaceOccurrencesOfString:@"[\uFFF9-\uFFFB]"
withString:@""
options:NSRegularExpressionSearch
range:NSMakeRange(0, self.length)];
return ceil(rubyLineHeight);
}
@end // NSMutableAttributedString (NSMutableAttributedStringMarkDownFormatting)
__attribute__((objc_direct_members))
@implementation
NSAttributedString(NSAttributedStringHorizontalInVerticalForms)
- (NSAttributedString*)attributedStringHorizontalInVerticalForms {
NSMutableDictionary<NSAttributedStringKey, id>* attrs =
[[self attributesAtIndex:0 effectiveRange:NULL] mutableCopy];
NSFont* font = attrs[NSFontAttributeName];
CGFloat height = ceil(font.ascender - font.descender);
CGFloat width = fmax(height, ceil(self.size.width));
NSImage* image = [NSImage
imageWithSize:NSMakeSize(height, width)
flipped:YES
drawingHandler:^BOOL(NSRect dstRect) {
CGContextRef context = NSGraphicsContext.currentContext.CGContext;
CGContextSaveGState(context);
CGContextTranslateCTM(context, NSWidth(dstRect) * 0.5,
NSHeight(dstRect) * 0.5);
CGContextRotateCTM(context, -M_PI_2);
CGPoint origin =
CGPointMake(-self.size.width / width * NSHeight(dstRect) * 0.5,
-NSWidth(dstRect) * 0.5);
[self drawAtPoint:origin];
CGContextRestoreGState(context);
return YES;
}];
image.resizingMode = NSImageResizingModeStretch;
image.size = NSMakeSize(height, height);
NSTextAttachment* attm = NSTextAttachment.alloc.init;
attm.image = image;
attm.bounds = NSMakeRect(0, font.descender, height, height);
attrs[NSAttachmentAttributeName] = attm;
return [NSAttributedString.alloc
initWithString:[NSString
stringWithCharacters:(unichar[]){NSAttachmentCharacter}
length:1]
attributes:attrs];
}
@end // NSAttributedString (NSAttributedStringHorizontalInVerticalForms)
__attribute__((objc_direct_members))
@implementation
NSColorSpace(labColorSpace)
+ (NSColorSpace*)labColorSpace {
static NSColorSpace* labColorSpace;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
const CGFloat whitePoint[3] = {0.950489, 1.0, 1.088840};
const CGFloat blackPoint[3] = {0.0, 0.0, 0.0};
const CGFloat range[4] = {-127.0, 127.0, -127.0, 127.0};
labColorSpace = [NSColorSpace.alloc
initWithCGColorSpace:(CGColorSpaceRef)CFAutorelease(
CGColorSpaceCreateLab(whitePoint, blackPoint,
range))];
});
return labColorSpace;
}
@end // NSColorSpace (labColorSpace)
__attribute__((objc_direct_members))
@implementation
NSColor(semanticColors)
+ (NSColor*)secondaryTextColor {
if (@available(macOS 10.10, *)) {
return NSColor.secondaryLabelColor;
} else {
return NSColor.disabledControlTextColor;
}
}
+ (NSColor*)accentColor {
if (@available(macOS 10.14, *)) {
return NSColor.controlAccentColor;
} else {
return [NSColor colorForControlTint:NSColor.currentControlTint];
}
}
- (NSColor*)hooverColor {
if (@available(macOS 10.14, *)) {
return [self colorWithSystemEffect:NSColorSystemEffectRollover];
} else {
return [[NSAppearance.currentAppearance bestMatchFromAppearancesWithNames:@[
NSAppearanceNameAqua, NSAppearanceNameDarkAqua
]] isEqualToString:NSAppearanceNameDarkAqua]
? [self highlightWithLevel:0.3]
: [self shadowWithLevel:0.3];
}
}
- (NSColor*)disabledColor {
if (@available(macOS 10.14, *)) {
return [self colorWithSystemEffect:NSColorSystemEffectDisabled];
} else {
return [[NSAppearance.currentAppearance bestMatchFromAppearancesWithNames:@[
NSAppearanceNameAqua, NSAppearanceNameDarkAqua
]] isEqualToString:NSAppearanceNameDarkAqua]
? [self shadowWithLevel:0.3]
: [self highlightWithLevel:0.3];
}
}
@end // NSColor (semanticColors)
__attribute__((objc_direct_members))
@interface NSColor (NSColorWithLabColorSpace)
@property(nonatomic, readonly) CGFloat luminanceComponent;
@property(nonatomic, readonly) CGFloat aGnRdComponent;
@property(nonatomic, readonly) CGFloat bBuYlComponent;
@end
@implementation NSColor (NSColorWithLabColorSpace)
typedef NS_ENUM(NSInteger, ColorInversionExtent) {
kDefaultColorInversion = 0,
kAugmentedColorInversion = 1,
kModerateColorInversion = -1
};
+ (NSColor*)colorWithLabLuminance:(CGFloat)luminance
aGnRd:(CGFloat)aGnRd
bBuYl:(CGFloat)bBuYl
alpha:(CGFloat)alpha {
CGFloat components[4];
components[0] = fmax(fmin(luminance, 100.0), 0.0);
components[1] = fmax(fmin(aGnRd, 127.0), -127.0);
components[2] = fmax(fmin(bBuYl, 127.0), -127.0);
components[3] = fmax(fmin(alpha, 1.0), 0.0);
return [NSColor colorWithColorSpace:NSColorSpace.labColorSpace
components:components
count:4];
}
- (void)getLuminance:(CGFloat*)luminance
aGnRd:(CGFloat*)aGnRd
bBuYl:(CGFloat*)bBuYl
alpha:(CGFloat*)alpha {
static CGFloat luminanceComponent, aGnRdComponent, bBuYlComponent,
alphaComponent;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
CGFloat components[4] = {0.0, 0.0, 0.0, 1.0};
[([self.colorSpace isEqualTo:NSColorSpace.labColorSpace]
? self
: [self colorUsingColorSpace:NSColorSpace.labColorSpace])
getComponents:components];
luminanceComponent = components[0] / 100.0;
aGnRdComponent = components[1] / 127.0;
bBuYlComponent = components[2] / 127.0;
alphaComponent = components[3];
});
if (luminance != NULL)
*luminance = luminanceComponent;
if (aGnRd != NULL)
*aGnRd = aGnRdComponent;
if (bBuYl != NULL)
*bBuYl = bBuYlComponent;
if (alpha != NULL)
*alpha = alphaComponent;
}
- (CGFloat)luminanceComponent {
CGFloat luminance;
[self getLuminance:&luminance aGnRd:NULL bBuYl:NULL alpha:NULL];
return luminance;
}
- (CGFloat)aGnRdComponent {
CGFloat aGnRdComponent;
[self getLuminance:NULL aGnRd:&aGnRdComponent bBuYl:NULL alpha:NULL];
return aGnRdComponent;
}
- (CGFloat)bBuYlComponent {
CGFloat bBuYlComponent;
[self getLuminance:NULL aGnRd:NULL bBuYl:&bBuYlComponent alpha:NULL];
return bBuYlComponent;
}
- (NSColor*)colorByInvertingLuminanceToExtent:(ColorInversionExtent)extent {
NSColor* labColor = [self colorUsingColorSpace:NSColorSpace.labColorSpace];
CGFloat components[4] = {0.0, 0.0, 0.0, 1.0};
[labColor getComponents:components];
BOOL isDark = components[0] < 60;
switch (extent) {
case kAugmentedColorInversion:
components[0] = isDark ? 100.0 - components[0] * 2.0 / 3.0
: 150.0 - components[0] * 1.5;
break;
case kModerateColorInversion:
components[0] =
isDark ? 80.0 - components[0] / 3.0 : 135.0 - components[0] * 1.25;
break;
case kDefaultColorInversion:
components[0] =
isDark ? 90.0 - components[0] / 2.0 : 120.0 - components[0];
break;
}
NSColor* invertedColor =
[NSColor colorWithColorSpace:NSColorSpace.labColorSpace
components:components
count:4];
return [invertedColor colorUsingColorSpace:self.colorSpace];
}
@end // NSColor (colorWithLabColorSpace)
#pragma mark - Color scheme and other user configurations
__attribute__((objc_direct_members))
@interface SquirrelTheme : NSObject
typedef NS_ENUM(NSUInteger, SquirrelAppear) {
defaultAppear = 0,
lightAppear = 0,
darkAppear = 1
};
typedef NS_ENUM(NSUInteger, SquirrelStatusMessageType) {
kStatusMessageTypeMixed = 0,
kStatusMessageTypeShort = 1,
kStatusMessageTypeLong = 2
};
@property(nonatomic, strong, readonly, nonnull) NSColor* backColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* preeditForeColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* textForeColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* commentForeColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* labelForeColor;
@property(nonatomic, strong, readonly, nonnull)
NSColor* hilitedPreeditForeColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* hilitedTextForeColor;
@property(nonatomic, strong, readonly, nonnull)
NSColor* hilitedCommentForeColor;
@property(nonatomic, strong, readonly, nonnull) NSColor* hilitedLabelForeColor;
@property(nonatomic, strong, readonly, nullable) NSColor* dimmedLabelForeColor;
@property(nonatomic, strong, readonly, nullable)
NSColor* hilitedCandidateBackColor;
@property(nonatomic, strong, readonly, nullable)
NSColor* hilitedPreeditBackColor;
@property(nonatomic, strong, readonly, nullable) NSColor* preeditBackColor;
@property(nonatomic, strong, readonly, nullable) NSColor* borderColor;
@property(nonatomic, strong, readonly, nullable) NSImage* backImage;
@property(nonatomic, readonly) CGFloat cornerRadius;
@property(nonatomic, readonly) CGFloat hilitedCornerRadius;
@property(nonatomic, readonly) CGFloat fullWidth;
@property(nonatomic, readonly) CGFloat linespace;
@property(nonatomic, readonly) CGFloat preeditLinespace;
@property(nonatomic, readonly) CGFloat opacity;
@property(nonatomic, readonly) CGFloat translucency;
@property(nonatomic, readonly) CGFloat lineLength;
@property(nonatomic, readonly) NSSize borderInsets;
@property(nonatomic, readonly) BOOL showPaging;
@property(nonatomic, readonly) BOOL rememberSize;
@property(nonatomic, readonly) BOOL tabular;
@property(nonatomic, readonly) BOOL linear;
@property(nonatomic, readonly) BOOL vertical;
@property(nonatomic, readonly) BOOL inlinePreedit;
@property(nonatomic, readonly) BOOL inlineCandidate;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* textAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* labelAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* commentAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* preeditAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* pagingAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSDictionary<NSAttributedStringKey, id>* statusAttrs;
@property(nonatomic, strong, readonly, nonnull)
NSParagraphStyle* candidateParagraphStyle;
@property(nonatomic, strong, readonly, nonnull)
NSParagraphStyle* preeditParagraphStyle;
@property(nonatomic, strong, readonly, nonnull)
NSParagraphStyle* statusParagraphStyle;
@property(nonatomic, strong, readonly, nonnull)
NSParagraphStyle* pagingParagraphStyle;
@property(nonatomic, strong, readonly, nullable)
NSParagraphStyle* truncatedParagraphStyle;
@property(nonatomic, strong, readonly, nonnull) NSAttributedString* separator;
@property(nonatomic, strong, readonly, nonnull)
NSAttributedString* fullWidthPlaceholder;
@property(nonatomic, strong, readonly, nonnull)
NSAttributedString* symbolDeleteFill;
@property(nonatomic, strong, readonly, nonnull)
NSAttributedString* symbolDeleteStroke;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolBackFill;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolBackStroke;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolForwardFill;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolForwardStroke;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolCompress;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* symbolExpand;
@property(nonatomic, strong, readonly, nullable) NSAttributedString* symbolLock;
@property(nonatomic, strong, readonly, nonnull) NSArray<NSString*>* labels;
@property(nonatomic, strong, readonly, nonnull)
NSAttributedString* candidateTemplate;
@property(nonatomic, strong, readonly, nonnull)
NSAttributedString* candidateHilitedTemplate;
@property(nonatomic, strong, readonly, nullable)
NSAttributedString* candidateDimmedTemplate;
@property(nonatomic, strong, readonly, nonnull) NSString* selectKeys;
@property(nonatomic, strong, readonly, nonnull) NSString* candidateFormat;
@property(nonatomic, strong, readonly, nonnull) NSString* scriptVariant;
@property(nonatomic, readonly) SquirrelStatusMessageType statusMessageType;
@property(nonatomic, readonly) NSUInteger pageSize;
- (void)updateLabelsWithConfig:(SquirrelConfig* _Nonnull)config
directUpdate:(BOOL)update;
- (void)setSelectKeys:(NSString* _Nonnull)selectKeys
labels:(NSArray<NSString*>* _Nonnull)labels
directUpdate:(BOOL)update;
- (void)setCandidateFormat:(NSString* _Nonnull)candidateFormat;
- (void)setStatusMessageType:(NSString* _Nullable)type;
- (void)updateWithConfig:(SquirrelConfig* _Nonnull)config
styleOptions:(NSSet<NSString*>* _Nonnull)styleOptions
scriptVariant:(NSString* _Nonnull)scriptVariant
forAppearance:(SquirrelAppear)appear;
- (void)setAnnotationHeight:(CGFloat)height;
- (void)setScriptVariant:(NSString* _Nonnull)scriptVariant;
@end
@implementation SquirrelTheme
static inline NSColor* blendColors(NSColor* foregroundColor,
NSColor* backgroundColor) {
return [[foregroundColor
blendedColorWithFraction:kBlendedBackgroundColorFraction
ofColor:backgroundColor ?: NSColor.lightGrayColor]
colorWithAlphaComponent:foregroundColor.alphaComponent];
}
static NSFontDescriptor* getFontDescriptor(NSString* fullname) {
if (fullname.length == 0) {
return nil;
}
NSArray<NSString*>* fontNames = [fullname componentsSeparatedByString:@","];
NSMutableArray<NSFontDescriptor*>* validFontDescriptors =
[NSMutableArray.alloc initWithCapacity:fontNames.count];
for (NSString* fontName in fontNames) {
NSFont* font = [NSFont
fontWithName:[fontName
stringByTrimmingCharactersInSet:
NSCharacterSet.whitespaceAndNewlineCharacterSet]
size:0.0];
if (font != nil) {
// If the font name is not valid, NSFontDescriptor will still create
// something for us. However, when we draw the actual text, Squirrel will
// crash if there is any font descriptor with invalid font name.
NSFontDescriptor* fontDescriptor = font.fontDescriptor;
NSFontDescriptor* UIFontDescriptor = [fontDescriptor
fontDescriptorWithSymbolicTraits:NSFontDescriptorTraitUIOptimized];
[validFontDescriptors
addObject:[NSFont fontWithDescriptor:UIFontDescriptor size:0.0] != nil
? UIFontDescriptor
: fontDescriptor];
}
}
if (validFontDescriptors.count == 0) {
return nil;
}
NSFontDescriptor* initialFontDescriptor = validFontDescriptors[0];
NSFontDescriptor* emojiFontDescriptor =
[NSFontDescriptor fontDescriptorWithName:@"AppleColorEmoji" size:0.0];
NSArray<NSFontDescriptor*>* fallbackDescriptors = [[validFontDescriptors
subarrayWithRange:NSMakeRange(1, validFontDescriptors.count - 1)]
arrayByAddingObject:emojiFontDescriptor];
return [initialFontDescriptor fontDescriptorByAddingAttributes:@{
NSFontCascadeListAttribute : fallbackDescriptors
}];
}
static CGFloat getLineHeight(NSFont* font, BOOL vertical) {
if (vertical) {
font = font.verticalFont;
}
CGFloat lineHeight = ceil(font.ascender - font.descender);
NSArray<NSFontDescriptor*>* fallbackList =
[font.fontDescriptor objectForKey:NSFontCascadeListAttribute];
for (NSFontDescriptor* fallback in fallbackList) {
NSFont* fallbackFont = [NSFont fontWithDescriptor:fallback
size:font.pointSize];
if (vertical) {
fallbackFont = fallbackFont.verticalFont;
}
lineHeight =
fmax(lineHeight, ceil(fallbackFont.ascender - fallbackFont.descender));
}
return lineHeight;
}
- (instancetype)init {
self = [super init];
if (self) {
NSMutableParagraphStyle* candidateParagraphStyle =
NSMutableParagraphStyle.alloc.init;
candidateParagraphStyle.alignment = NSTextAlignmentLeft;
candidateParagraphStyle.lineBreakStrategy = NSLineBreakStrategyNone;
// Use left-to-right marks to declare the default writing direction and
// prevent strong right-to-left characters from setting the writing
// direction in case the label are direction-less symbols
candidateParagraphStyle.baseWritingDirection =
NSWritingDirectionLeftToRight;
NSMutableParagraphStyle* preeditParagraphStyle =
candidateParagraphStyle.mutableCopy;
NSMutableParagraphStyle* pagingParagraphStyle =
candidateParagraphStyle.mutableCopy;
NSMutableParagraphStyle* statusParagraphStyle =
candidateParagraphStyle.mutableCopy;
candidateParagraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
preeditParagraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
statusParagraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;
NSFontDescriptor* userFontDesc =
getFontDescriptor([NSFont userFontOfSize:0.0].fontName);
NSFontDescriptor* monoFontDesc =
getFontDescriptor([NSFont userFixedPitchFontOfSize:0.0].fontName);
NSFont* userFont = [NSFont fontWithDescriptor:userFontDesc
size:kDefaultFontSize];
NSFont* userMonoFont = [NSFont fontWithDescriptor:monoFontDesc
size:kDefaultFontSize];
NSFont* monoDigitFont =
[NSFont monospacedDigitSystemFontOfSize:kDefaultFontSize
weight:NSFontWeightRegular];
NSMutableDictionary<NSAttributedStringKey, id>* textAttrs =
NSMutableDictionary.alloc.init;
textAttrs[NSForegroundColorAttributeName] = NSColor.controlTextColor;
textAttrs[NSFontAttributeName] = userFont;
// Use left-to-right embedding to prevent right-to-left text from changing
// the layout of the candidate.
textAttrs[NSWritingDirectionAttributeName] = @[ @(0) ];
textAttrs[NSParagraphStyleAttributeName] = candidateParagraphStyle;
NSMutableDictionary<NSAttributedStringKey, id>* labelAttrs =
textAttrs.mutableCopy;
labelAttrs[NSForegroundColorAttributeName] = NSColor.accentColor;
labelAttrs[NSFontAttributeName] = userMonoFont;
labelAttrs[NSParagraphStyleAttributeName] = candidateParagraphStyle;
NSMutableDictionary<NSAttributedStringKey, id>* commentAttrs =
NSMutableDictionary.alloc.init;
commentAttrs[NSForegroundColorAttributeName] = NSColor.secondaryTextColor;
commentAttrs[NSFontAttributeName] = userFont;
commentAttrs[NSParagraphStyleAttributeName] = candidateParagraphStyle;
NSMutableDictionary<NSAttributedStringKey, id>* preeditAttrs =
NSMutableDictionary.alloc.init;
preeditAttrs[NSForegroundColorAttributeName] = NSColor.textColor;
preeditAttrs[NSFontAttributeName] = userFont;
preeditAttrs[NSLigatureAttributeName] = @(0);
preeditAttrs[NSParagraphStyleAttributeName] = preeditParagraphStyle;
NSMutableDictionary<NSAttributedStringKey, id>* pagingAttrs =
NSMutableDictionary.alloc.init;
pagingAttrs[NSFontAttributeName] = monoDigitFont;
pagingAttrs[NSForegroundColorAttributeName] = NSColor.textColor;
NSMutableDictionary<NSAttributedStringKey, id>* statusAttrs =
commentAttrs.mutableCopy;
statusAttrs[NSParagraphStyleAttributeName] = statusParagraphStyle;
_textAttrs = textAttrs;
_labelAttrs = labelAttrs;
_commentAttrs = commentAttrs;
_preeditAttrs = preeditAttrs;
_pagingAttrs = pagingAttrs;
_statusAttrs = statusAttrs;
_candidateParagraphStyle = candidateParagraphStyle;
_preeditParagraphStyle = preeditParagraphStyle;
_pagingParagraphStyle = pagingParagraphStyle;
_statusParagraphStyle = statusParagraphStyle;
_backColor = NSColor.controlBackgroundColor;
_preeditForeColor = NSColor.textColor;
_textForeColor = NSColor.controlTextColor;
_commentForeColor = NSColor.secondaryTextColor;
_labelForeColor = NSColor.accentColor;
_hilitedPreeditForeColor = NSColor.selectedTextColor;
_hilitedTextForeColor = NSColor.selectedMenuItemTextColor;
_hilitedCommentForeColor = NSColor.alternateSelectedControlTextColor;
_hilitedLabelForeColor = NSColor.alternateSelectedControlTextColor;
_selectKeys = @"12345";
_labels = @[ @"１", @"２", @"３", @"４", @"５" ];
_pageSize = 5;
_candidateFormat = kDefaultCandidateFormat;
_scriptVariant = @"zh";
[self updateCandidateFormatForAttributesOnly:NO];
[self updateSeperatorAndSymbolAttrs];
}
return self;
}
- (void)updateSeperatorAndSymbolAttrs {
NSMutableDictionary<NSAttributedStringKey, id>* sepAttrs =
_commentAttrs.mutableCopy;
sepAttrs[NSVerticalGlyphFormAttributeName] = @(NO);
_separator = [NSAttributedString.alloc
initWithString:_linear ? (_tabular ? @"\u3000\t\x1D" : @"\u3000\x1D")
: @"\n"
attributes:sepAttrs];
_fullWidthPlaceholder =
[NSAttributedString.alloc initWithString:kFullWidthSpace
attributes:_commentAttrs];
// Symbols for function buttons
NSString* attmCharacter =
[NSString stringWithCharacters:(unichar[1]){NSAttachmentCharacter}
length:1];
NSTextAttachment* attmDeleteFill = NSTextAttachment.alloc.init;
attmDeleteFill.image = [NSImage imageNamed:@"Symbols/delete.backward.fill"];
NSMutableDictionary<NSAttributedStringKey, id>* attrsDeleteFill =
_preeditAttrs.mutableCopy;
attrsDeleteFill[NSAttachmentAttributeName] = attmDeleteFill;
attrsDeleteFill[NSVerticalGlyphFormAttributeName] = @(NO);
_symbolDeleteFill = [NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsDeleteFill];
NSTextAttachment* attmDeleteStroke = NSTextAttachment.alloc.init;
attmDeleteStroke.image = [NSImage imageNamed:@"Symbols/delete.backward"];
NSMutableDictionary<NSAttributedStringKey, id>* attrsDeleteStroke =
_preeditAttrs.mutableCopy;
attrsDeleteStroke[NSAttachmentAttributeName] = attmDeleteStroke;
attrsDeleteStroke[NSVerticalGlyphFormAttributeName] = @(NO);
_symbolDeleteStroke =
[NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsDeleteStroke];
if (_tabular) {
NSTextAttachment* attmCompress = NSTextAttachment.alloc.init;
attmCompress.image =
[NSImage imageNamed:@"Symbols/rectangle.compress.vertical"];
NSMutableDictionary<NSAttributedStringKey, id>* attrsCompress =
_pagingAttrs.mutableCopy;
attrsCompress[NSAttachmentAttributeName] = attmCompress;
_symbolCompress = [NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsCompress];
NSTextAttachment* attmExpand = NSTextAttachment.alloc.init;
attmExpand.image =
[NSImage imageNamed:@"Symbols/rectangle.expand.vertical"];
NSMutableDictionary<NSAttributedStringKey, id>* attrsExpand =
_pagingAttrs.mutableCopy;
attrsExpand[NSAttachmentAttributeName] = attmExpand;
_symbolExpand = [NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsExpand];
NSTextAttachment* attmLock = NSTextAttachment.alloc.init;
attmLock.image = [NSImage
imageNamed:[NSString stringWithFormat:@"Symbols/lock%@.fill",
_vertical ? @".vertical" : @""]];
NSMutableDictionary<NSAttributedStringKey, id>* attrsLock =
_pagingAttrs.mutableCopy;
attrsLock[NSAttachmentAttributeName] = attmLock;
_symbolLock = [NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsLock];
} else {
_symbolCompress = nil;
_symbolExpand = nil;
_symbolLock = nil;
}
if (_showPaging) {
NSTextAttachment* attmBackFill = NSTextAttachment.alloc.init;
attmBackFill.image = [NSImage
imageNamed:[NSString stringWithFormat:@"Symbols/chevron.%@.circle.fill",
_linear ? @"up" : @"left"]];
NSMutableDictionary<NSAttributedStringKey, id>* attrsBackFill =
_pagingAttrs.mutableCopy;
attrsBackFill[NSAttachmentAttributeName] = attmBackFill;
_symbolBackFill = [NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsBackFill];
NSTextAttachment* attmBackStroke = NSTextAttachment.alloc.init;
attmBackStroke.image = [NSImage
imageNamed:[NSString stringWithFormat:@"Symbols/chevron.%@.circle",
_linear ? @"up" : @"left"]];
NSMutableDictionary<NSAttributedStringKey, id>* attrsBackStroke =
_pagingAttrs.mutableCopy;
attrsBackStroke[NSAttachmentAttributeName] = attmBackStroke;
_symbolBackStroke =
[NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsBackStroke];
NSTextAttachment* attmForwardFill = NSTextAttachment.alloc.init;
attmForwardFill.image = [NSImage
imageNamed:[NSString stringWithFormat:@"Symbols/chevron.%@.circle.fill",
_linear ? @"down" : @"right"]];
NSMutableDictionary<NSAttributedStringKey, id>* attrsForwardFill =
_pagingAttrs.mutableCopy;
attrsForwardFill[NSAttachmentAttributeName] = attmForwardFill;
_symbolForwardFill =
[NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsForwardFill];
NSTextAttachment* attmForwardStroke = NSTextAttachment.alloc.init;
attmForwardStroke.image = [NSImage
imageNamed:[NSString stringWithFormat:@"Symbols/chevron.%@.circle",
_linear ? @"down" : @"right"]];
NSMutableDictionary<NSAttributedStringKey, id>* attrsForwardStroke =
_pagingAttrs.mutableCopy;
attrsForwardStroke[NSAttachmentAttributeName] = attmForwardStroke;
_symbolForwardStroke =
[NSAttributedString.alloc initWithString:attmCharacter
attributes:attrsForwardStroke];
} else {
_symbolBackFill = nil;
_symbolBackStroke = nil;
_symbolForwardFill = nil;
_symbolForwardStroke = nil;
}
}
- (void)updateLabelsWithConfig:(SquirrelConfig*)config
directUpdate:(BOOL)update {
NSUInteger menuSize =
(NSUInteger)[config getIntForOption:@"menu/page_size"] ?: 5;
NSMutableArray<NSString*>* labels =
[NSMutableArray.alloc initWithCapacity:menuSize];
NSString* selectKeys =
[config getStringForOption:@"menu/alternative_select_keys"];
NSArray<NSString*>* selectLabels =
[config getListForOption:@"menu/alternative_select_labels"];
if (selectLabels.count > 0) {
[labels
addObjectsFromArray:[selectLabels
subarrayWithRange:NSMakeRange(0, menuSize)]];
}
if (selectKeys) {
if (selectLabels.count == 0) {
NSString* keyCaps = [selectKeys.uppercaseString
stringByApplyingTransform:NSStringTransformFullwidthToHalfwidth
reverse:YES];
for (NSUInteger i = 0; i < menuSize; ++i) {
labels[i] = [keyCaps substringWithRange:NSMakeRange(i, 1)];
}
}
} else {
selectKeys = [@"1234567890" substringToIndex:menuSize];
if (selectLabels.count == 0) {
NSString* numerals = [selectKeys
stringByApplyingTransform:NSStringTransformFullwidthToHalfwidth
reverse:YES];
for (NSUInteger i = 0; i < menuSize; ++i) {
labels[i] = [numerals substringWithRange:NSMakeRange(i, 1)];
}
}
}
[self setSelectKeys:selectKeys labels:labels directUpdate:update];
}
- (void)setSelectKeys:(NSString*)selectKeys
labels:(NSArray<NSString*>*)labels
directUpdate:(BOOL)update {
_selectKeys = selectKeys;
_labels = labels;
_pageSize = labels.count;
if (update) {
[self updateCandidateFormatForAttributesOnly:YES];
}
}
- (void)setCandidateFormat:(NSString*)candidateFormat {
BOOL attrsOnly = [candidateFormat isEqualToString:_candidateFormat];
if (!attrsOnly) {
_candidateFormat = candidateFormat;
}
[self updateCandidateFormatForAttributesOnly:attrsOnly];
[self updateSeperatorAndSymbolAttrs];
}
- (void)updateCandidateFormatForAttributesOnly:(BOOL)attrsOnly {
NSMutableAttributedString* candTemplate;
if (!attrsOnly) {
// validate candidate format: must have enumerator '%c' before candidate
// '%@'
NSMutableString* candidateFormat = _candidateFormat.mutableCopy;
if (![candidateFormat containsString:@"%@"]) {
[candidateFormat appendString:@"%@"];
}
NSRange labelRange = [candidateFormat rangeOfString:@"%c"
options:NSLiteralSearch];
if (labelRange.length == 0) {
[candidateFormat insertString:@"%c" atIndex:0];
}
NSRange textRange = [candidateFormat rangeOfString:@"%@"
options:NSLiteralSearch];
if (labelRange.location > textRange.location) {
candidateFormat.string = kDefaultCandidateFormat;
}
NSMutableArray<NSString*>* labels = _labels.mutableCopy;
NSRange enumRange = NSMakeRange(0, 0);
NSCharacterSet* labelCharacters = [NSCharacterSet
characterSetWithCharactersInString:[labels
componentsJoinedByString:@""]];
if ([[NSCharacterSet characterSetWithRange:NSMakeRange(0xFF10, 10)]
isSupersetOfSet:labelCharacters]) { // ０１..９
if ((enumRange = [candidateFormat rangeOfString:@"%c\u20E3"
options:NSLiteralSearch])
.length > 0) { // 1︎⃣..9︎⃣0︎⃣