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[WIP] Quotes

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Ali
2023-10-19 00:10:34 +04:00
parent 3bd3bbc7eb
commit 7d58ff6873
7 changed files with 173 additions and 14 deletions
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142
submodules/Display/Source/TextNode.swift
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@@ -105,11 +105,11 @@ private final class TextNodeLine {
let descent: CGFloat
let range: NSRange?
let isRTL: Bool
let strikethroughs: [TextNodeStrikethrough]
let spoilers: [TextNodeSpoiler]
let spoilerWords: [TextNodeSpoiler]
let embeddedItems: [TextNodeEmbeddedItem]
let attachments: [TextNodeAttachment]
var strikethroughs: [TextNodeStrikethrough]
var spoilers: [TextNodeSpoiler]
var spoilerWords: [TextNodeSpoiler]
var embeddedItems: [TextNodeEmbeddedItem]
var attachments: [TextNodeAttachment]
let additionalTrailingLine: (CTLine, Double)?
init(line: CTLine, frame: CGRect, ascent: CGFloat, descent: CGFloat, range: NSRange?, isRTL: Bool, strikethroughs: [TextNodeStrikethrough], spoilers: [TextNodeSpoiler], spoilerWords: [TextNodeSpoiler], embeddedItems: [TextNodeEmbeddedItem], attachments: [TextNodeAttachment], additionalTrailingLine: (CTLine, Double)?) {
@@ -1039,6 +1039,78 @@ public final class TextAccessibilityOverlayNode: ASDisplayNode {
}
}
private func addSpoiler(line: TextNodeLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line.line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line.line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
line.spoilers.append(TextNodeSpoiler(range: NSMakeRange(startIndex, endIndex - startIndex + 1), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset), height: ascent + descent)))
}
private func addSpoilerWord(line: TextNodeLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int, rightInset: CGFloat = 0.0) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line.line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line.line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
line.spoilerWords.append(TextNodeSpoiler(range: NSMakeRange(startIndex, endIndex - startIndex + 1), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent)))
}
private func addEmbeddedItem(item: AnyHashable, line: TextNodeLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int, rightInset: CGFloat = 0.0) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line.line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line.line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
line.embeddedItems.append(TextNodeEmbeddedItem(range: NSMakeRange(startIndex, endIndex - startIndex + 1), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent), item: item))
}
private func addAttachment(attachment: UIImage, line: TextNodeLine, ascent: CGFloat, descent: CGFloat, startIndex: Int, endIndex: Int, rightInset: CGFloat = 0.0) {
var secondaryLeftOffset: CGFloat = 0.0
let rawLeftOffset = CTLineGetOffsetForStringIndex(line.line, startIndex, &secondaryLeftOffset)
var leftOffset = floor(rawLeftOffset)
if !rawLeftOffset.isEqual(to: secondaryLeftOffset) {
leftOffset = floor(secondaryLeftOffset)
}
var secondaryRightOffset: CGFloat = 0.0
let rawRightOffset = CTLineGetOffsetForStringIndex(line.line, endIndex, &secondaryRightOffset)
var rightOffset = ceil(rawRightOffset)
if !rawRightOffset.isEqual(to: secondaryRightOffset) {
rightOffset = ceil(secondaryRightOffset)
}
line.attachments.append(TextNodeAttachment(range: NSMakeRange(startIndex, endIndex - startIndex), frame: CGRect(x: min(leftOffset, rightOffset), y: descent - (ascent + descent), width: abs(rightOffset - leftOffset) + rightInset, height: ascent + descent), attachment: attachment))
}
open class TextNode: ASDisplayNode {
public internal(set) var cachedLayout: TextNodeLayout?
@@ -1304,7 +1376,9 @@ open class TextNode: ASDisplayNode {
}
var lines: [TextNodeLine] = []
var blockQuotes: [TextNodeBlockQuote] = []
for i in 0 ..< calculatedSegments.count {
let segment = calculatedSegments[i]
if i != 0 {
@@ -1336,6 +1410,64 @@ open class TextNode: ASDisplayNode {
size.height += line.frame.height
blockWidth = max(blockWidth, line.frame.origin.x + line.frame.width)
if let range = line.range {
attributedString.enumerateAttributes(in: range, options: []) { attributes, range, _ in
if attributes[NSAttributedString.Key(rawValue: "TelegramSpoiler")] != nil || attributes[NSAttributedString.Key(rawValue: "Attribute__Spoiler")] != nil {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(line.line, &ascent, &descent, nil)
var startIndex: Int?
var currentIndex: Int?
let nsString = (attributedString.string as NSString)
nsString.enumerateSubstrings(in: range, options: .byComposedCharacterSequences) { substring, range, _, _ in
if let substring = substring, substring.rangeOfCharacter(from: .whitespacesAndNewlines) != nil {
if let currentStartIndex = startIndex {
startIndex = nil
let endIndex = range.location
addSpoilerWord(line: line, ascent: ascent, descent: descent, startIndex: currentStartIndex, endIndex: endIndex)
}
} else if startIndex == nil {
startIndex = range.location
}
currentIndex = range.location + range.length
}
if let currentStartIndex = startIndex, let currentIndex = currentIndex {
startIndex = nil
let endIndex = currentIndex
addSpoilerWord(line: line, ascent: ascent, descent: descent, startIndex: currentStartIndex, endIndex: endIndex, rightInset: 0.0)
}
addSpoiler(line: line, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
} else if let _ = attributes[NSAttributedString.Key.strikethroughStyle] {
let lowerX = floor(CTLineGetOffsetForStringIndex(line.line, range.location, nil))
let upperX = ceil(CTLineGetOffsetForStringIndex(line.line, range.location + range.length, nil))
let x = lowerX < upperX ? lowerX : upperX
line.strikethroughs.append(TextNodeStrikethrough(range: range, frame: CGRect(x: x, y: 0.0, width: abs(upperX - lowerX), height: line.frame.height)))
}
if let embeddedItem = (attributes[NSAttributedString.Key(rawValue: "TelegramEmbeddedItem")] as? AnyHashable ?? attributes[NSAttributedString.Key(rawValue: "Attribute__EmbeddedItem")] as? AnyHashable) {
if displayEmbeddedItemsUnderSpoilers || (attributes[NSAttributedString.Key(rawValue: "TelegramSpoiler")] == nil && attributes[NSAttributedString.Key(rawValue: "Attribute__Spoiler")] == nil) {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(line.line, &ascent, &descent, nil)
addEmbeddedItem(item: embeddedItem, line: line, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
if let attachment = attributes[NSAttributedString.Key.attachment] as? UIImage {
var ascent: CGFloat = 0.0
var descent: CGFloat = 0.0
CTLineGetTypographicBounds(line.line, &ascent, &descent, nil)
addAttachment(attachment: attachment, line: line, ascent: ascent, descent: descent, startIndex: range.location, endIndex: range.location + range.length)
}
}
}
lines.append(line)
}