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This commit is contained in:
Peter
2017-06-06 13:13:26 +03:00
parent d55e3da7b3
commit b8230a4fdb
397 changed files with 28757 additions and 6756 deletions
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103
TelegramUI/TextNode.swift
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@@ -1,6 +1,7 @@
import Foundation
import AsyncDisplayKit
import Display
import Postbox
private let defaultFont = UIFont.systemFont(ofSize: 15.0)
@@ -40,9 +41,10 @@ final class TextNodeLayout: NSObject {
fileprivate let cutout: TextNodeCutout?
fileprivate let insets: UIEdgeInsets
let size: CGSize
fileprivate let firstLineOffset: CGFloat
fileprivate let lines: [TextNodeLine]
fileprivate init(attributedString: NSAttributedString?, maximumNumberOfLines: Int, truncationType: CTLineTruncationType, constrainedSize: CGSize, alignment: NSTextAlignment, cutout: TextNodeCutout?, insets: UIEdgeInsets, size: CGSize, lines: [TextNodeLine], backgroundColor: UIColor?) {
fileprivate init(attributedString: NSAttributedString?, maximumNumberOfLines: Int, truncationType: CTLineTruncationType, constrainedSize: CGSize, alignment: NSTextAlignment, cutout: TextNodeCutout?, insets: UIEdgeInsets, size: CGSize, firstLineOffset: CGFloat, lines: [TextNodeLine], backgroundColor: UIColor?) {
self.attributedString = attributedString
self.maximumNumberOfLines = maximumNumberOfLines
self.truncationType = truncationType
@@ -51,6 +53,7 @@ final class TextNodeLayout: NSObject {
self.cutout = cutout
self.insets = insets
self.size = size
self.firstLineOffset = firstLineOffset
self.lines = lines
self.backgroundColor = backgroundColor
}
@@ -67,30 +70,78 @@ final class TextNodeLayout: NSObject {
}
}
func attributesAtPoint(_ point: CGPoint) -> [String: Any] {
func attributesAtPoint(_ point: CGPoint) -> (Int, [String: Any])? {
if let attributedString = self.attributedString {
let transformedPoint = CGPoint(x: point.x - self.insets.left, y: point.y - self.insets.top)
for line in self.lines {
let lineFrame = line.frame.offsetBy(dx: 0.0, dy: -line.frame.size.height)
if lineFrame.contains(point) {
let index = CTLineGetStringIndexForPosition(line.line, CGPoint(x: point.x - lineFrame.minX, y: point.y - lineFrame.minY))
let lineFrame = CGRect(origin: CGPoint(x: line.frame.origin.x, y: line.frame.origin.y - line.frame.size.height + self.firstLineOffset), size: line.frame.size)
if lineFrame.contains(transformedPoint) {
var index = CTLineGetStringIndexForPosition(line.line, CGPoint(x: transformedPoint.x - lineFrame.minX, y: transformedPoint.y - lineFrame.minY))
if index == attributedString.length {
index -= 1
} else if index != 0 {
var glyphStart: CGFloat = 0.0
CTLineGetOffsetForStringIndex(line.line, index, &glyphStart)
if transformedPoint.x < glyphStart {
index -= 1
}
}
if index >= 0 && index < attributedString.length {
return attributedString.attributes(at: index, effectiveRange: nil)
return (index, attributedString.attributes(at: index, effectiveRange: nil))
}
break
}
}
for line in self.lines {
let lineFrame = line.frame.offsetBy(dx: 0.0, dy: -line.frame.size.height)
if lineFrame.offsetBy(dx: 0.0, dy: -lineFrame.size.height).insetBy(dx: -3.0, dy: -3.0).contains(point) {
let index = CTLineGetStringIndexForPosition(line.line, CGPoint(x: point.x - lineFrame.minX, y: point.y - lineFrame.minY))
let lineFrame = CGRect(origin: CGPoint(x: line.frame.origin.x, y: line.frame.origin.y - line.frame.size.height + self.firstLineOffset), size: line.frame.size)
if lineFrame.offsetBy(dx: 0.0, dy: -lineFrame.size.height).insetBy(dx: -3.0, dy: -3.0).contains(transformedPoint) {
var index = CTLineGetStringIndexForPosition(line.line, CGPoint(x: transformedPoint.x - lineFrame.minX, y: transformedPoint.y - lineFrame.minY))
if index == attributedString.length {
index -= 1
} else if index != 0 {
var glyphStart: CGFloat = 0.0
CTLineGetOffsetForStringIndex(line.line, index, &glyphStart)
if transformedPoint.x < glyphStart {
index -= 1
}
}
if index >= 0 && index < attributedString.length {
return attributedString.attributes(at: index, effectiveRange: nil)
return (index, attributedString.attributes(at: index, effectiveRange: nil))
}
break
}
}
}
return [:]
return nil
}
func attributeRects(name: String, at index: Int) -> [CGRect]? {
if let attributedString = self.attributedString {
var range = NSRange()
let _ = attributedString.attribute(name, at: index, effectiveRange: &range)
if range.length != 0 {
var rects: [CGRect] = []
for line in self.lines {
let lineRange = NSIntersectionRange(range, line.range)
if lineRange.length != 0 {
var leftOffset: CGFloat = 0.0
if lineRange.location != line.range.location {
leftOffset = floor(CTLineGetOffsetForStringIndex(line.line, lineRange.location, nil))
}
var rightOffset: CGFloat = line.frame.width
if lineRange.location + lineRange.length != line.range.length {
rightOffset = ceil(CTLineGetOffsetForStringIndex(line.line, lineRange.location + lineRange.length, nil))
}
let lineFrame = CGRect(origin: CGPoint(x: line.frame.origin.x, y: line.frame.origin.y - line.frame.size.height + self.firstLineOffset), size: line.frame.size)
rects.append(CGRect(origin: CGPoint(x: lineFrame.minX + leftOffset + self.insets.left, y: lineFrame.minY + self.insets.top), size: CGSize(width: rightOffset - leftOffset, height: lineFrame.size.height)))
}
}
if !rects.isEmpty {
return rects
}
}
}
return nil
}
}
@@ -104,6 +155,16 @@ final class TelegramHashtag {
}
}
final class TelegramPeerMention {
let peerId: PeerId
let mention: String
init(peerId: PeerId, mention: String) {
self.peerId = peerId
self.mention = mention
}
}
final class TextNode: ASDisplayNode {
static let UrlAttribute = "UrlAttributeT"
static let TelegramPeerMentionAttribute = "TelegramPeerMention"
@@ -121,11 +182,19 @@ final class TextNode: ASDisplayNode {
self.clipsToBounds = false
}
func attributesAtPoint(_ point: CGPoint) -> [String: Any] {
func attributesAtPoint(_ point: CGPoint) -> (Int, [String: Any])? {
if let cachedLayout = self.cachedLayout {
return cachedLayout.attributesAtPoint(point)
} else {
return [:]
return nil
}
}
func attributeRects(name: String, at index: Int) -> [CGRect]? {
if let cachedLayout = self.cachedLayout {
return cachedLayout.attributeRects(name: name, at: index)
} else {
return nil
}
}
@@ -154,7 +223,7 @@ final class TextNode: ASDisplayNode {
var maybeTypesetter: CTTypesetter?
maybeTypesetter = CTTypesetterCreateWithAttributedString(attributedString as CFAttributedString)
if maybeTypesetter == nil {
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(), lines: [], backgroundColor: backgroundColor)
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(), firstLineOffset: 0.0, lines: [], backgroundColor: backgroundColor)
}
let typesetter = maybeTypesetter!
@@ -177,6 +246,8 @@ final class TextNode: ASDisplayNode {
cutoutEnabled = true
}
let firstLineOffset = floorToScreenPixels(fontLineSpacing * 2.0)
var first = true
while true {
var lineConstrainedWidth = constrainedSize.width
@@ -257,9 +328,9 @@ final class TextNode: ASDisplayNode {
}
}
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(width: ceil(layoutSize.width) + insets.left + insets.right, height: ceil(layoutSize.height) + insets.top + insets.bottom), lines: lines, backgroundColor: backgroundColor)
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(width: ceil(layoutSize.width) + insets.left + insets.right, height: ceil(layoutSize.height) + insets.top + insets.bottom), firstLineOffset: firstLineOffset, lines: lines, backgroundColor: backgroundColor)
} else {
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(), lines: [], backgroundColor: backgroundColor)
return TextNodeLayout(attributedString: attributedString, maximumNumberOfLines: maximumNumberOfLines, truncationType: truncationType, constrainedSize: constrainedSize, alignment: alignment, cutout: cutout, insets: insets, size: CGSize(), firstLineOffset: 0.0, lines: [], backgroundColor: backgroundColor)
}
}