mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
671 lines
40 KiB
Swift
671 lines
40 KiB
Swift
import Foundation
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import TelegramCore
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import Postbox
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import Display
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final class InstantPageLayout {
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let origin: CGPoint
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let contentSize: CGSize
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let items: [InstantPageItem]
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init(origin: CGPoint, contentSize: CGSize, items: [InstantPageItem]) {
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self.origin = origin
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self.contentSize = contentSize
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self.items = items
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}
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func flattenedItemsWithOrigin(_ origin: CGPoint) -> [InstantPageItem] {
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return self.items.map({ item in
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var item = item
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let itemFrame = item.frame.offsetBy(dx: origin.x, dy: origin.y)
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item.frame = itemFrame
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return item
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})
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}
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}
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private func setupStyleStack(_ stack: InstantPageTextStyleStack, theme: InstantPageTheme, category: InstantPageTextCategoryType, link: Bool) {
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let attributes = theme.textCategories.attributes(type: category, link: link)
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stack.push(.textColor(attributes.color))
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switch attributes.font.style {
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case .sans:
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stack.push(.fontSerif(false))
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case .serif:
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stack.push(.fontSerif(true))
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}
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stack.push(.fontSize(attributes.font.size))
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stack.push(.lineSpacingFactor(attributes.font.lineSpacingFactor))
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if attributes.underline {
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stack.push(.underline)
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}
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}
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func layoutInstantPageBlock(webpage: TelegramMediaWebpage, block: InstantPageBlock, boundingWidth: CGFloat, horizontalInset: CGFloat, safeInset: CGFloat, isCover: Bool, previousItems: [InstantPageItem], fillToWidthAndHeight: Bool, media: [MediaId: Media], mediaIndexCounter: inout Int, embedIndexCounter: inout Int, theme: InstantPageTheme, strings: PresentationStrings, timeFormat: PresentationTimeFormat) -> InstantPageLayout {
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switch block {
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case let .cover(block):
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return layoutInstantPageBlock(webpage: webpage, block: block, boundingWidth: boundingWidth, horizontalInset: horizontalInset, safeInset: safeInset, isCover: true, previousItems:previousItems, fillToWidthAndHeight: fillToWidthAndHeight, media: media, mediaIndexCounter: &mediaIndexCounter, embedIndexCounter: &embedIndexCounter, theme: theme, strings: strings, timeFormat: timeFormat)
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case let .title(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .header, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case let .subtitle(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .subheader, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case let .authorDate(author: author, date: date):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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var text: RichText?
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if case .empty = author {
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if date != 0 {
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let dateFormatter = DateFormatter()
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dateFormatter.locale = localeWithStrings(strings)
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dateFormatter.dateStyle = .long
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dateFormatter.timeStyle = .none
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let dateStringPlain = dateFormatter.string(from: Date(timeIntervalSince1970: Double(date)))
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text = RichText.plain(dateStringPlain)
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}
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} else {
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let dateFormatter = DateFormatter()
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dateFormatter.locale = localeWithStrings(strings)
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dateFormatter.dateStyle = .long
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dateFormatter.timeStyle = .none
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let dateStringPlain = dateFormatter.string(from: Date(timeIntervalSince1970: Double(date)))
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let dateText = RichText.plain(dateStringPlain)
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if date != 0 {
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let formatString = strings.InstantPage_AuthorAndDateTitle("%1$@", "%2$@").0
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let authorRange = formatString.range(of: "%1$@")!
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let dateRange = formatString.range(of: "%2$@")!
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if authorRange.lowerBound < dateRange.lowerBound {
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let byPart = String(formatString[formatString.startIndex ..< authorRange.lowerBound])
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let middlePart = String(formatString[authorRange.upperBound ..< dateRange.lowerBound])
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let endPart = String(formatString[dateRange.upperBound...])
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text = .concat([.plain(byPart), author, .plain(middlePart), dateText, .plain(endPart)])
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} else {
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let beforePart = String(formatString[formatString.startIndex ..< dateRange.lowerBound])
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let middlePart = String(formatString[dateRange.upperBound ..< authorRange.lowerBound])
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let endPart = String(formatString[authorRange.upperBound...])
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text = .concat([.plain(beforePart), dateText, .plain(middlePart), author, .plain(endPart)])
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}
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} else {
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text = author
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}
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}
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if let text = text {
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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if let previousItem = previousItems.last as? InstantPageTextItem, previousItem.containsRTL {
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item.alignment = .right
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}
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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} else {
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return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(), items: [])
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}
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case let .header(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .header, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case let .subheader(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .subheader, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case let .paragraph(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case let .preformatted(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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let backgroundInset: CGFloat = 14.0
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - backgroundInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: backgroundInset)
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let backgroundItem = InstantPageShapeItem(frame: CGRect(origin: CGPoint(), size: CGSize(width: boundingWidth, height: item.frame.size.height + backgroundInset * 2.0)), shapeFrame: CGRect(origin: CGPoint(), size: CGSize(width: boundingWidth, height: item.frame.size.height + backgroundInset * 2.0)), shape: .rect, color: theme.codeBlockBackgroundColor)
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return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(width: boundingWidth, height: item.frame.size.height + backgroundInset * 2.0), items: [backgroundItem, item])
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case let .footer(text):
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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let item = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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item.frame = item.frame.offsetBy(dx: horizontalInset, dy: 0.0)
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return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
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case .divider:
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let lineWidth = floor(boundingWidth / 2.0)
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let shapeItem = InstantPageShapeItem(frame: CGRect(origin: CGPoint(x: floor((boundingWidth - lineWidth) / 2.0), y: 0.0), size: CGSize(width: lineWidth, height: 1.0)), shapeFrame: CGRect(origin: CGPoint(), size: CGSize(width: lineWidth, height: 1.0)), shape: .rect, color: theme.textCategories.caption.color)
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return InstantPageLayout(origin: CGPoint(), contentSize: shapeItem.frame.size, items: [shapeItem])
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case let .list(contentItems, ordered):
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var contentSize = CGSize(width: boundingWidth, height: 0.0)
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var maxIndexWidth: CGFloat = 0.0
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var listItems: [InstantPageItem] = []
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var indexItems: [InstantPageItem] = []
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for i in 0 ..< contentItems.count {
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if ordered {
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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let textItem = layoutTextItemWithString(attributedStringForRichText(.plain("\(i + 1)."), styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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if let line = textItem.lines.first {
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maxIndexWidth = max(maxIndexWidth, line.frame.size.width)
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}
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indexItems.append(textItem)
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} else {
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let shapeItem = InstantPageShapeItem(frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: 6.0, height: 12.0)), shapeFrame: CGRect(origin: CGPoint(x: 0.0, y: 3.0), size: CGSize(width: 6.0, height: 6.0)), shape: .ellipse, color: theme.textCategories.paragraph.color)
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indexItems.append(shapeItem)
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}
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}
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let indexSpacing: CGFloat = ordered ? 7.0 : 20.0
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for i in 0 ..< contentItems.count {
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if (i != 0) {
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contentSize.height += 20.0
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}
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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let textItem = layoutTextItemWithString(attributedStringForRichText(contentItems[i], styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - indexSpacing - maxIndexWidth)
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textItem.frame = textItem.frame.offsetBy(dx: horizontalInset + indexSpacing + maxIndexWidth, dy: contentSize.height)
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contentSize.height += textItem.frame.size.height
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let itemFrame = indexItems[i].frame.offsetBy(dx: horizontalInset, dy: textItem.frame.origin.y)
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indexItems[i].frame = itemFrame
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listItems.append(indexItems[i])
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listItems.append(textItem)
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}
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return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: listItems)
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case let .blockQuote(text, caption):
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let lineInset: CGFloat = 20.0
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let verticalInset: CGFloat = 4.0
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var contentSize = CGSize(width: boundingWidth, height: verticalInset)
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var items: [InstantPageItem] = []
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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styleStack.push(.italic)
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let textItem = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - lineInset)
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textItem.frame = textItem.frame.offsetBy(dx: horizontalInset + lineInset, dy: contentSize.height)
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contentSize.height += textItem.frame.size.height
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items.append(textItem)
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if case .empty = caption {
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} else {
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contentSize.height += 14.0
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - lineInset)
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captionItem.frame = captionItem.frame.offsetBy(dx: horizontalInset + lineInset, dy: contentSize.height)
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contentSize.height += captionItem.frame.size.height
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items.append(captionItem)
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}
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contentSize.height += verticalInset
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let shapeItem = InstantPageShapeItem(frame: CGRect(origin: CGPoint(x: horizontalInset, y: 0.0), size: CGSize(width: 3.0, height: contentSize.height)), shapeFrame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: 3.0, height: contentSize.height)), shape: .roundLine, color: theme.textCategories.paragraph.color)
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items.append(shapeItem)
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return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
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case let .pullQuote(text, caption):
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let verticalInset: CGFloat = 4.0
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var contentSize = CGSize(width: boundingWidth, height: verticalInset)
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var items: [InstantPageItem] = []
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
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styleStack.push(.italic)
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let textItem = layoutTextItemWithString(attributedStringForRichText(text, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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textItem.frame = textItem.frame.offsetBy(dx: floor(boundingWidth - textItem.frame.size.width) / 2.0, dy: contentSize.height)
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textItem.alignment = .center
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contentSize.height += textItem.frame.size.height
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items.append(textItem)
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if case .empty = caption {
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} else {
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contentSize.height += 14.0
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
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captionItem.alignment = .center
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contentSize.height += captionItem.frame.size.height
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items.append(captionItem)
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}
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contentSize.height += verticalInset
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return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
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case let .image(id, caption):
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if let image = media[id] as? TelegramMediaImage, let largest = largestImageRepresentation(image.representations) {
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let imageSize = largest.dimensions
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var filledSize = imageSize.aspectFitted(CGSize(width: boundingWidth - safeInset * 2.0, height: 1200.0))
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if fillToWidthAndHeight {
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filledSize = CGSize(width: boundingWidth - safeInset * 2.0, height: boundingWidth - safeInset * 2.0)
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} else if isCover {
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filledSize = imageSize.aspectFilled(CGSize(width: boundingWidth - safeInset * 2.0, height: 1.0))
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if !filledSize.height.isZero {
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filledSize = filledSize.cropped(CGSize(width: boundingWidth - safeInset * 2.0, height: floor((boundingWidth - safeInset * 2.0) * 3.0 / 5.0)))
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}
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}
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let mediaIndex = mediaIndexCounter
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mediaIndexCounter += 1
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var contentSize = CGSize(width: boundingWidth - safeInset * 2.0, height: 0.0)
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var items: [InstantPageItem] = []
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let mediaItem = InstantPageImageItem(frame: CGRect(origin: CGPoint(x: floor((boundingWidth - safeInset * 2.0 - filledSize.width) / 2.0), y: 0.0), size: filledSize), webPage: webpage, media: InstantPageMedia(index: mediaIndex, media: image, caption: caption.plainText), interactive: true, roundCorners: false, fit: false)
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items.append(mediaItem)
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contentSize.height += filledSize.height
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if case .empty = caption {
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} else {
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contentSize.height += 10.0
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
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captionItem.alignment = .center
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contentSize.height += captionItem.frame.size.height
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items.append(captionItem)
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}
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return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
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} else {
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return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(), items: [])
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}
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case let .video(id, caption, autoplay, loop):
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if let file = media[id] as? TelegramMediaFile, let dimensions = file.dimensions {
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let imageSize = dimensions
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var filledSize = imageSize.aspectFitted(CGSize(width: boundingWidth - safeInset * 2.0, height: 1200.0))
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if fillToWidthAndHeight {
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filledSize = CGSize(width: boundingWidth - safeInset * 2.0, height: boundingWidth - safeInset * 2.0)
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} else if isCover {
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filledSize = imageSize.aspectFilled(CGSize(width: boundingWidth - safeInset * 2.0, height: 1.0))
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if !filledSize.height.isZero {
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filledSize = filledSize.cropped(CGSize(width: boundingWidth - safeInset * 2.0, height: floor((boundingWidth - safeInset * 2.0) * 3.0 / 5.0)))
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}
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}
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let mediaIndex = mediaIndexCounter
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mediaIndexCounter += 1
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var contentSize = CGSize(width: boundingWidth - safeInset * 2.0, height: 0.0)
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var items: [InstantPageItem] = []
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if autoplay {
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let mediaItem = InstantPagePlayableVideoItem(frame: CGRect(origin: CGPoint(x: floor((boundingWidth - safeInset * 2.0 - filledSize.width) / 2.0), y: 0.0), size: filledSize), webPage: webpage, media: InstantPageMedia(index: mediaIndex, media: file, caption: caption.plainText), interactive: true)
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items.append(mediaItem)
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} else {
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let mediaItem = InstantPageImageItem(frame: CGRect(origin: CGPoint(x: floor((boundingWidth - safeInset * 2.0 - filledSize.width) / 2.0), y: 0.0), size: filledSize), webPage: webpage, media: InstantPageMedia(index: mediaIndex, media: file, caption: caption.plainText), interactive: true, roundCorners: false, fit: false)
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items.append(mediaItem)
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}
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contentSize.height += filledSize.height
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if case .empty = caption {
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} else {
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contentSize.height += 10.0
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let styleStack = InstantPageTextStyleStack()
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setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
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let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
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captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
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captionItem.alignment = .center
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contentSize.height += captionItem.frame.size.height
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items.append(captionItem)
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}
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return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
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} else {
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return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(), items: [])
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}
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case let .collage(items: innerItems, caption: caption):
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let spacing: CGFloat = 2.0
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let itemsPerRow = 3
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let itemSize = floor((boundingWidth - safeInset * 2.0 - spacing * max(0.0, CGFloat(itemsPerRow - 1))) / CGFloat(itemsPerRow))
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var items: [InstantPageItem] = []
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var nextItemOrigin = CGPoint(x: 0.0, y: 0.0)
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for subItem in innerItems {
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if nextItemOrigin.x + itemSize > boundingWidth {
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nextItemOrigin.x = 0.0
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nextItemOrigin.y += itemSize + spacing
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}
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let subLayout = layoutInstantPageBlock(webpage: webpage, block: subItem, boundingWidth: itemSize, horizontalInset: 0.0, safeInset: 0.0, isCover: false, previousItems: items, fillToWidthAndHeight: true, media: media, mediaIndexCounter: &mediaIndexCounter, embedIndexCounter: &embedIndexCounter, theme: theme, strings: strings, timeFormat: timeFormat)
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items.append(contentsOf: subLayout.flattenedItemsWithOrigin(nextItemOrigin))
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nextItemOrigin.x += itemSize + spacing
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}
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var contentSize = CGSize(width: boundingWidth - safeInset * 2.0, height: nextItemOrigin.y + itemSize)
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if case .empty = caption {
|
|
} else {
|
|
contentSize.height += 10.0
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - safeInset * 2.0 - horizontalInset * 2.0)
|
|
captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
|
|
captionItem.alignment = .center
|
|
|
|
contentSize.height += captionItem.frame.size.height
|
|
items.append(captionItem)
|
|
}
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
case let .postEmbed(url, webpageId, avatarId, author, date, blocks, caption):
|
|
var contentSize = CGSize(width: boundingWidth, height: 0.0)
|
|
let lineInset: CGFloat = 20.0
|
|
let verticalInset: CGFloat = 4.0
|
|
let itemSpacing: CGFloat = 10.0
|
|
var avatarInset: CGFloat = 0.0
|
|
var avatarVerticalInset: CGFloat = 0.0
|
|
|
|
contentSize.height += verticalInset
|
|
|
|
var items: [InstantPageItem] = []
|
|
|
|
if !author.isEmpty {
|
|
let avatar: TelegramMediaImage? = avatarId.flatMap { media[$0] as? TelegramMediaImage }
|
|
if let avatar = avatar {
|
|
let avatarItem = InstantPageImageItem(frame: CGRect(origin: CGPoint(x: horizontalInset + lineInset + 1.0, y: contentSize.height - 2.0), size: CGSize(width: 50.0, height: 50.0)), webPage: webpage, media: InstantPageMedia(index: -1, media: avatar, caption: ""), interactive: false, roundCorners: true, fit: false)
|
|
items.append(avatarItem)
|
|
|
|
avatarInset += 62.0
|
|
avatarVerticalInset += 6.0
|
|
if date == 0 {
|
|
avatarVerticalInset += 11.0
|
|
}
|
|
}
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .paragraph, link: false)
|
|
styleStack.push(.bold)
|
|
|
|
let textItem = layoutTextItemWithString(attributedStringForRichText(.plain(author), styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - lineInset - avatarInset)
|
|
textItem.frame = textItem.frame.offsetBy(dx: horizontalInset + lineInset + avatarInset, dy: contentSize.height + avatarVerticalInset)
|
|
items.append(textItem)
|
|
|
|
contentSize.height += textItem.frame.size.height + avatarVerticalInset
|
|
}
|
|
if date != 0 {
|
|
if items.count != 0 {
|
|
contentSize.height += itemSpacing
|
|
}
|
|
|
|
let dateString = DateFormatter.localizedString(from: Date(timeIntervalSince1970: Double(date)), dateStyle: .long, timeStyle: .none)
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let textItem = layoutTextItemWithString(attributedStringForRichText(.plain(dateString), styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0 - lineInset - avatarInset)
|
|
textItem.frame = textItem.frame.offsetBy(dx: horizontalInset + lineInset + avatarInset, dy: contentSize.height)
|
|
items.append(textItem)
|
|
|
|
contentSize.height += textItem.frame.size.height
|
|
}
|
|
|
|
if items.count != 0 {
|
|
contentSize.height += itemSpacing
|
|
}
|
|
|
|
var previousBlock: InstantPageBlock?
|
|
for subBlock in blocks {
|
|
let subLayout = layoutInstantPageBlock(webpage: webpage, block: subBlock, boundingWidth: boundingWidth - horizontalInset * 2.0 - lineInset, horizontalInset: 0.0, safeInset: 0.0, isCover: false, previousItems: items, fillToWidthAndHeight: false, media: media, mediaIndexCounter: &mediaIndexCounter, embedIndexCounter: &embedIndexCounter, theme: theme, strings: strings, timeFormat: timeFormat)
|
|
|
|
let spacing = spacingBetweenBlocks(upper: previousBlock, lower: subBlock)
|
|
let blockItems = subLayout.flattenedItemsWithOrigin(CGPoint(x: horizontalInset + lineInset, y: contentSize.height + spacing))
|
|
items.append(contentsOf: blockItems)
|
|
contentSize.height += subLayout.contentSize.height + spacing
|
|
previousBlock = subBlock
|
|
}
|
|
|
|
contentSize.height += verticalInset
|
|
|
|
items.append(InstantPageShapeItem(frame: CGRect(origin: CGPoint(x: horizontalInset, y: 0.0), size: CGSize(width: 3.0, height: contentSize.height)), shapeFrame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: 3.0, height: contentSize.height)), shape: .roundLine, color: theme.textCategories.paragraph.color))
|
|
|
|
if case .empty = caption {
|
|
} else {
|
|
contentSize.height += 14.0
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
|
|
captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
|
|
captionItem.alignment = .center
|
|
|
|
contentSize.height += captionItem.frame.size.height
|
|
items.append(captionItem)
|
|
}
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
case let .slideshow(items: subItems, caption: caption):
|
|
var contentSize = CGSize(width: boundingWidth, height: 0.0)
|
|
var items: [InstantPageItem] = []
|
|
|
|
var itemMedias: [InstantPageMedia] = []
|
|
|
|
for subBlock in subItems {
|
|
switch subBlock {
|
|
case let .image(id, caption):
|
|
if let image = media[id] as? TelegramMediaImage, let imageSize = largestImageRepresentation(image.representations)?.dimensions {
|
|
let mediaIndex = mediaIndexCounter
|
|
mediaIndexCounter += 1
|
|
|
|
let filledSize = imageSize.fitted(CGSize(width: boundingWidth, height: 1200.0))
|
|
contentSize.height = max(contentSize.height, filledSize.height)
|
|
|
|
itemMedias.append(InstantPageMedia(index: mediaIndex, media: image, caption: caption.plainText))
|
|
}
|
|
break
|
|
default:
|
|
break
|
|
}
|
|
}
|
|
|
|
items.append(InstantPageSlideshowItem(frame: CGRect(origin: CGPoint(), size: CGSize(width: boundingWidth, height: contentSize.height)), webPage: webpage, medias: itemMedias))
|
|
|
|
if case .empty = caption {
|
|
} else {
|
|
contentSize.height += 14.0
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
|
|
captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
|
|
captionItem.alignment = .center
|
|
|
|
contentSize.height += captionItem.frame.size.height
|
|
items.append(captionItem)
|
|
}
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
case let .webEmbed(url, html, dimensions, caption, stretchToWidth, allowScrolling, coverId):
|
|
var embedBoundingWidth = boundingWidth - horizontalInset * 2.0
|
|
if stretchToWidth {
|
|
embedBoundingWidth = boundingWidth
|
|
}
|
|
let size: CGSize
|
|
if dimensions.width.isLessThanOrEqualTo(0.0) {
|
|
size = CGSize(width: embedBoundingWidth, height: dimensions.height)
|
|
} else {
|
|
size = dimensions.aspectFitted(CGSize(width: embedBoundingWidth, height: embedBoundingWidth))
|
|
}
|
|
|
|
var items: [InstantPageItem] = []
|
|
|
|
let item = InstantPageWebEmbedItem(frame: CGRect(origin: CGPoint(x: floor((boundingWidth - size.width) / 2.0), y: 0.0), size: size), url: url, html: html, enableScrolling: allowScrolling)
|
|
items.append(item)
|
|
|
|
var contentSize = item.frame.size
|
|
|
|
if case .empty = caption {
|
|
} else {
|
|
contentSize.height += 10.0
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
|
|
captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
|
|
captionItem.alignment = .center
|
|
|
|
contentSize.height += captionItem.frame.size.height
|
|
items.append(captionItem)
|
|
}
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
case let .channelBanner(peer):
|
|
var contentSize = CGSize(width: boundingWidth, height: 0.0)
|
|
var items: [InstantPageItem] = []
|
|
|
|
var rtl = false
|
|
if let previousItem = previousItems.last as? InstantPageTextItem, previousItem.containsRTL {
|
|
rtl = true
|
|
}
|
|
|
|
if let peer = peer {
|
|
let item = InstantPagePeerReferenceItem(frame: CGRect(origin: CGPoint(), size: CGSize(width: boundingWidth, height: 40.0)), initialPeer: peer, rtl: rtl)
|
|
items.append(item)
|
|
contentSize.height += 40.0
|
|
}
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
case let .anchor(name):
|
|
let item = InstantPageAnchorItem(frame: CGRect(origin: CGPoint(), size: CGSize(width: boundingWidth, height: 0.0)), anchor: name)
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: item.frame.size, items: [item])
|
|
case let .audio(id: audioId, caption: caption):
|
|
var contentSize = CGSize(width: boundingWidth, height: 0.0)
|
|
var items: [InstantPageItem] = []
|
|
|
|
if let file = media[audioId] as? TelegramMediaFile {
|
|
let mediaIndex = mediaIndexCounter
|
|
mediaIndexCounter += 1
|
|
let item = InstantPageAudioItem(frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: boundingWidth, height: 48.0)), media: InstantPageMedia(index: mediaIndex, media: file, caption: ""), webpage: webpage)
|
|
|
|
contentSize.height += item.frame.size.height
|
|
items.append(item)
|
|
|
|
if case .empty = caption {
|
|
} else {
|
|
contentSize.height += 10.0
|
|
|
|
let styleStack = InstantPageTextStyleStack()
|
|
setupStyleStack(styleStack, theme: theme, category: .caption, link: false)
|
|
|
|
let captionItem = layoutTextItemWithString(attributedStringForRichText(caption, styleStack: styleStack), boundingWidth: boundingWidth - horizontalInset * 2.0)
|
|
captionItem.frame = captionItem.frame.offsetBy(dx: floor(boundingWidth - captionItem.frame.size.width) / 2.0, dy: contentSize.height)
|
|
captionItem.alignment = .center
|
|
|
|
contentSize.height += captionItem.frame.size.height
|
|
items.append(captionItem)
|
|
}
|
|
}
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
default:
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(), items: [])
|
|
}
|
|
}
|
|
|
|
func instantPageLayoutForWebPage(_ webPage: TelegramMediaWebpage, boundingWidth: CGFloat, safeInset: CGFloat, strings: PresentationStrings, theme: InstantPageTheme, timeFormat: PresentationTimeFormat) -> InstantPageLayout {
|
|
var maybeLoadedContent: TelegramMediaWebpageLoadedContent?
|
|
if case let .Loaded(content) = webPage.content {
|
|
maybeLoadedContent = content
|
|
}
|
|
|
|
guard let loadedContent = maybeLoadedContent, let instantPage = loadedContent.instantPage else {
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: CGSize(), items: [])
|
|
}
|
|
|
|
let pageBlocks = instantPage.blocks
|
|
var contentSize = CGSize(width: boundingWidth, height: 0.0)
|
|
var items: [InstantPageItem] = []
|
|
|
|
var media = instantPage.media
|
|
if let image = loadedContent.image, let id = image.id {
|
|
media[id] = image
|
|
}
|
|
|
|
var mediaIndexCounter: Int = 0
|
|
var embedIndexCounter: Int = 0
|
|
|
|
var previousBlock: InstantPageBlock?
|
|
for block in pageBlocks {
|
|
let blockLayout = layoutInstantPageBlock(webpage: webPage, block: block, boundingWidth: boundingWidth, horizontalInset: 17.0 + safeInset, safeInset: safeInset, isCover: false, previousItems: items, fillToWidthAndHeight: false, media: media, mediaIndexCounter: &mediaIndexCounter, embedIndexCounter: &embedIndexCounter, theme: theme, strings: strings, timeFormat: timeFormat)
|
|
let spacing = spacingBetweenBlocks(upper: previousBlock, lower: block)
|
|
let blockItems = blockLayout.flattenedItemsWithOrigin(CGPoint(x: 0.0, y: contentSize.height + spacing))
|
|
items.append(contentsOf: blockItems)
|
|
if CGFloat(0.0).isLess(than: blockLayout.contentSize.height) {
|
|
contentSize.height += blockLayout.contentSize.height + spacing
|
|
previousBlock = block
|
|
}
|
|
}
|
|
|
|
let closingSpacing = spacingBetweenBlocks(upper: previousBlock, lower: nil)
|
|
contentSize.height += closingSpacing
|
|
|
|
return InstantPageLayout(origin: CGPoint(), contentSize: contentSize, items: items)
|
|
}
|
|
|
|
/*+ (TGInstantPageLayout *)makeLayoutForWebPage:(TGWebPageMediaAttachment *)webPage boundingWidth:(CGFloat)boundingWidth {
|
|
|
|
NSInteger mediaIndexCounter = 0;
|
|
|
|
TGInstantPageBlock *previousBlock = nil;
|
|
for (TGInstantPageBlock *block in pageBlocks) {
|
|
TGInstantPageLayout *blockLayout = [self layoutBlock:block boundingWidth:boundingWidth horizontalInset:17.0f isCover:false fillToWidthAndHeight:false images:images videos:webPage.instantPage.videos mediaIndexCounter:&mediaIndexCounter];
|
|
CGFloat spacing = spacingBetweenBlocks(previousBlock, block);
|
|
NSArray *blockItems = [blockLayout flattenedItemsWithOrigin:CGPointMake(0.0f, contentSize.height + spacing)];
|
|
[items addObjectsFromArray:blockItems];
|
|
contentSize.height += blockLayout.contentSize.height + spacing;
|
|
previousBlock = block;
|
|
}
|
|
CGFloat closingSpacing = spacingBetweenBlocks(previousBlock, nil);
|
|
contentSize.height += closingSpacing;
|
|
|
|
{
|
|
CGFloat height = CGCeil([TGInstantPageFooterButtonView heightForWidth:boundingWidth]);
|
|
|
|
TGInstantPageFooterButtonItem *item = [[TGInstantPageFooterButtonItem alloc] initWithFrame:CGRectMake(0.0f, contentSize.height, boundingWidth, height)];
|
|
[items addObject:item];
|
|
contentSize.height += item.frame.size.height;
|
|
}
|
|
|
|
return [[TGInstantPageLayout alloc] initWithOrigin:CGPointZero contentSize:contentSize items:items];
|
|
}*/
|
|
|
|
|