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206 lines
8.1 KiB
206 lines
8.1 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using UnityEngine;
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using CommonMark;
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using CommonMark.Syntax;
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using UnityEngine.UI;
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using TMPro;
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using CustomUI.BeatSaber;
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namespace BSIPA_ModList.UI.ViewControllers
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{
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[RequireComponent(/*typeof(ScrollRect),*/ typeof(RectTransform))]
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public class MarkdownView : MonoBehaviour
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{
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private class TagTypeComponent : MonoBehaviour
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{
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internal BlockTag Tag;
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}
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private string markdown = "";
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public string Markdown
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{
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get => markdown;
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set
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{
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markdown = value;
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UpdateMd();
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}
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}
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public RectTransform rectTransform => GetComponent<RectTransform>();
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//private ScrollRect view;
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private RectTransform content;
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private CommonMarkSettings settings;
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public MarkdownView()
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{
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settings = CommonMarkSettings.Default.Clone();
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settings.AdditionalFeatures = CommonMarkAdditionalFeatures.All;
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settings.RenderSoftLineBreaksAsLineBreaks = false;
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settings.UriResolver = ResolveUri;
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}
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public Func<string, bool> HasEmbeddedImage;
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private string ResolveUri(string arg)
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{
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var name = arg.Substring(3);
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if (!arg.StartsWith("!::") && !arg.StartsWith("w::"))
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{ // !:: means embedded, w:: means web
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// this block is for when neither is specified
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Logger.md.Debug($"Resolving nonspecific URI {arg}");
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// check if its embedded
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if (HasEmbeddedImage != null && HasEmbeddedImage(arg))
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return "!::" + arg;
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else
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return "w::" + arg;
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}
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Logger.md.Debug($"Resolved specific URI {arg}");
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return arg;
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}
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protected void Awake()
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{
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content = new GameObject("Content Wrapper").AddComponent<RectTransform>();
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content.SetParent(transform);
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var contentLayout = content.gameObject.AddComponent<LayoutElement>();
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var contentFitter = content.gameObject.AddComponent<ContentSizeFitter>();
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contentFitter.horizontalFit = ContentSizeFitter.FitMode.PreferredSize;
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contentFitter.verticalFit = ContentSizeFitter.FitMode.Unconstrained;
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contentLayout.preferredWidth = 100f; // to be adjusted
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content.sizeDelta = new Vector2(100f,100f);
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/*view = GetComponent<ScrollRect>();
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view.content = content;
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view.vertical = true;
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view.horizontal = false;
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view.verticalScrollbarVisibility = ScrollRect.ScrollbarVisibility.AutoHide;
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view.horizontalScrollbarVisibility = ScrollRect.ScrollbarVisibility.AutoHide;*/
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}
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private void UpdateMd()
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{
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Clear();
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var doc = CommonMarkConverter.Parse(markdown, settings);
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Stack<RectTransform> layout = new Stack<RectTransform>();
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layout.Push(content);
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TextMeshProUGUI currentText = null;
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foreach (var node in doc.AsEnumerable())
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{
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Logger.md.Debug($"node {node}");
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if (node.Block != null)
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{
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var block = node.Block;
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void BlockNode(string name, float spacing, bool isVertical)
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{
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var type = isVertical ? typeof(VerticalLayoutGroup) : typeof(HorizontalLayoutGroup);
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if (node.IsOpening)
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{
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Logger.md.Debug($"Creating block container {name}");
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currentText = null;
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var go = new GameObject(name, typeof(RectTransform), type);
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var vlayout = go.GetComponent<RectTransform>();
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vlayout.SetParent(layout.Peek());
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go.AddComponent<TagTypeComponent>().Tag = block.Tag;
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layout.Push(vlayout);
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if (isVertical)
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{
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var vl = go.GetComponent<VerticalLayoutGroup>();
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vl.childControlHeight = vl.childControlWidth =
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vl.childForceExpandHeight = vl.childForceExpandWidth = false;
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vl.spacing = spacing;
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}
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else
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{
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var hl = go.GetComponent<HorizontalLayoutGroup>();
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hl.childControlHeight = hl.childControlWidth =
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hl.childForceExpandHeight = hl.childForceExpandWidth = false;
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hl.spacing = spacing;
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}
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}
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else if (node.IsClosing)
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{
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currentText = null;
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layout.Pop();
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}
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}
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switch (block.Tag)
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{
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case BlockTag.Document:
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BlockNode("DocumentRoot", 10f, true);
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break;
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case BlockTag.SetextHeading:
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BlockNode("Heading1", .1f, false);
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break;
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case BlockTag.AtxHeading:
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BlockNode("Heading2", .1f, false);
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break;
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case BlockTag.Paragraph:
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BlockNode("Paragraph", .1f, false);
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break;
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// TODO: add the rest of the tag types
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}
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}
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else if (node.Inline != null)
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{ // inline element
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var inl = node.Inline;
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switch (inl.Tag)
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{
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case InlineTag.String:
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if (currentText == null)
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{
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Logger.md.Debug($"Adding new text element");
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var btt = layout.Peek().gameObject.GetComponent<TagTypeComponent>().Tag;
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currentText = BeatSaberUI.CreateText(layout.Peek(), "", Vector2.zero);
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//var le = currentText.gameObject.AddComponent<LayoutElement>();
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switch (btt)
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{
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case BlockTag.List:
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case BlockTag.ListItem:
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case BlockTag.Paragraph:
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currentText.fontSize = 3.5f;
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currentText.enableWordWrapping = true;
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break;
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case BlockTag.AtxHeading:
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currentText.fontSize = 4f;
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currentText.enableWordWrapping = true;
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break;
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case BlockTag.SetextHeading:
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currentText.fontSize = 4.5f;
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currentText.enableWordWrapping = true;
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break;
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// TODO: add other relevant types
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}
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}
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Logger.md.Debug($"Appending '{inl.LiteralContent}' to current element");
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currentText.text += inl.LiteralContent;
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break;
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}
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}
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}
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}
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private void Clear()
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{
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foreach (Transform child in content)
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Destroy(child.gameObject);
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}
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}
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}
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