506 lines
18 KiB
Dart
506 lines
18 KiB
Dart
import 'dart:collection';
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import 'dart:js_interop';
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import 'dart:js_interop_unsafe';
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import 'package:web/web.dart' as web;
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import 'package:flutter/material.dart';
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import 'dart:ui_web' as ui;
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import 'api_service.dart';
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import 'structs.dart';
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import 'package:html2md/html2md.dart' as html2md;
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import 'package:markdown_widget/markdown_widget.dart';
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import 'package:markdown/markdown.dart' as md;
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class CollapsableEmails extends StatefulWidget {
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final List<String> thread; // email id's in the form xyz@gmail.com
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final List<String> threadHTML;
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final String threadIDs;
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CollapsableEmails(
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{required this.thread,
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required this.threadHTML,
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required this.threadIDs});
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@override
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State<CollapsableEmails> createState() => _CollapsableEmailsState();
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}
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class _CollapsableEmailsState extends State<CollapsableEmails> {
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List<String> emailsHTML = []; //html of the emails in the thread
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// build attachments with the forldar name and id
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Set<int> _expandedEmails = {}; //open emails
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List viewtypeIDs = []; //IDs of the viewtypes, order matters
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List heightOfViewTypes = []; //the height of each viewtype
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List<SerializableMessage> emailsInThread = [];
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bool _isLoaded = false;
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static bool _isListenerRegistered = false;
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static bool left = true;
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static bool right = true;
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web.EventListener? _listener;
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List<String> hirarchy = ["h1", "h2", "h3", "h4", "h5", "h6", "p"];
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Map<String, int> hirarchyDict = {
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"h1": 1,
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"h2": 2,
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"h3": 3,
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"h4": 4,
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"h5": 6,
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"h6": 7,
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"p": 8,
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"ul": 8,
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"li": 8,
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};
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List<String> tagsCollected = [];
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String markdown = '';
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List<List<String>> sentinel = [];
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int level = 0;
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AugmentTree root = AugmentTree();
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@override
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void initState() {
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super.initState();
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_markdownConverter();
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// _registerViewFactory(widget.threadHTML);
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// _serializableData(widget.threadIDs); // this
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_markdown2Tree(markdown);
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_keyListener();
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_buildForZooms(level);
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}
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@override
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void dispose() {
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if (_listener != null) {
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web.window.document.removeEventListener('keydown', _listener!);
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_listener = null;
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_isListenerRegistered = false;
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}
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super.dispose();
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}
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void _markdownConverter() async {
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markdown = html2md.convert(widget.threadHTML[0]);
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}
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void _add2Tree(AugmentTree tree, md.Element node2add) {
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// adds node to its corresponding place
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AugmentTree newNode = AugmentTree();
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newNode.setData(node2add.textContent);
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newNode.ogTag = node2add.tag;
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// cases,
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//1. a node that comes is lower than the root.children last, if so it goes beneath it
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if (tree.children.isEmpty) {
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// new level to be created when totally empty
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print('is empty');
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tree.children.add(newNode);
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newNode.parent = tree;
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} else if (tree.children.isNotEmpty &&
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tree.children.last.ogTag.isNotEmpty) {
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if ((hirarchyDict[node2add.tag] ??
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-1) < // e.g. new node is h1 and old is h2, heapify
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(hirarchyDict[tree.children.last.ogTag] ?? -1)) {
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//have to figure out the borthers
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//assuming it all goes right
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if ((hirarchyDict[node2add.tag] ?? -1) == -1 ||
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(hirarchyDict[tree.children.last.ogTag] ?? -1) == -1) {
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print(
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'failed and got -1 at _add2Tree \n ${hirarchyDict[node2add.tag] ?? -1} < ${hirarchyDict[tree.children.last.ogTag] ?? -1}');
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return;
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} else if (tree.children.last.parent == null) {
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// becomes the new top level
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for (AugmentTree brother in tree.children) {
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brother.parent = newNode;
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}
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tree.children = [newNode];
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} else {
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tree.children.add(newNode);
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}
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// } else{ // so the node should go high
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// _add2Tree(tree.children.last, node2add);
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// }
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//maybe?
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// } else {
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// }
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} else if ((hirarchyDict[node2add.tag] ??
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-1) > // go down e.g. new node is h3 and old is h2 or something
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(hirarchyDict[tree.children.last.ogTag] ?? -1)) {
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if ((hirarchyDict[node2add.tag] ?? -1) == -1 ||
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(hirarchyDict[tree.children.last.ogTag] ?? -1) == -1) {
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print(
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'failed and got -1 at _add2Tree \n ${hirarchyDict[node2add.tag] ?? -1} > ${hirarchyDict[tree.children.last.ogTag] ?? -1}');
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print("-1 ${tree.children.last.ogTag}");
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return;
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}
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print("> ${node2add.tag}");
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_add2Tree(tree.children.last, node2add);
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} else if ((hirarchyDict[node2add.tag] ?? -1) ==
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(hirarchyDict[tree.children.last.ogTag] ?? -1)) {
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print("equals??");
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tree.children.add(newNode);
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newNode.parent = tree;
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}
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}
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}
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void _markdown2Tree(String text) {
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print("started markdown2tree");
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int highest = 0;
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AugmentTree zoomTreeRoot = AugmentTree();
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final List<md.Node> nakedList = md.Document().parseLines(text.split('\n'));
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List<String> pList = [];
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List<String> h1List = [];
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List<String> h2List = [];
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List<String> h3List = [];
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List<String> h4List = [];
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List<String> h5List = [];
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List<String> h6List = [];
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for (var node in nakedList) {
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//maybe do an add function, but isn't this it?
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if (node is md.Element) {
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// print(node.textContent);
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AugmentTree temp = AugmentTree();
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temp.data = node.textContent;
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temp.ogTag = node.tag;
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if (node.tag == 'h1') {
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h1List.add(node.textContent);
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_add2Tree(zoomTreeRoot, node);
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} else if (node.tag == 'h2') {
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// i dont add any since i dont have it, maybe the function makes sense
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h2List.add(node.textContent);
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} else if (node.tag == 'h3') {
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h3List.add(node.textContent);
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root.children.add(temp);
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_add2Tree(zoomTreeRoot, node);
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} else if (node.tag == 'h4') {
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h4List.add(node.textContent); //this broke it
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_add2Tree(zoomTreeRoot, node); // change to temp
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if (root.children.isNotEmpty) {
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root.children.last.children.add(temp);
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}
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} else if (node.tag == 'h5') {
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h5List.add(node.textContent);
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print(node.textContent);
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_add2Tree(zoomTreeRoot, node);
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if (root.children.last.children.isNotEmpty) {
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print("h5 index ${root.children.last.children.length}");
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root.children.last.children.last.children.add(temp);
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print(
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"h5 after index length ${root.children.last.children.last.children.length}");
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}
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} else if (node.tag == 'h6') {
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h6List.add(node.textContent);
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if (root.children.last.children.isNotEmpty) {
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print(
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"h6 index ${root.children.last.children.last.children.length}");
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root.children.last.children.last.children.add(temp);
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print(node.textContent);
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_add2Tree(zoomTreeRoot, node);
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}
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// root.children.last.children.last.children.add(temp);
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} else if (node.tag == 'p' || node.tag == 'ul' || node.tag == 'li') {
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pList.add(node.textContent);
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_add2Tree(zoomTreeRoot, node); // fix this
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if (root.children.isEmpty) {
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root.children.add(temp);
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} else if (root.children.last.children.isNotEmpty) {
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//perhaps recursive
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root.children.last.children.last.children.add(temp);
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}
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}
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}
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}
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this.sentinel = [h1List, h2List, h3List, h4List, h5List, h6List, pList];
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sentinel.removeWhere((hList) => hList.isEmpty);
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print('algorithm adding: ');
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print("first layer: ${zoomTreeRoot.children}");
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print("first node: ${zoomTreeRoot.children[0].data}"); //good
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print("second layer: ${zoomTreeRoot.children.last.children}"); //good
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print(
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"first node: ${zoomTreeRoot.children.last.children.first.data}"); //good
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for (int n = 1; n < zoomTreeRoot.children.last.children.length - 1; n++) {
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//good
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print(zoomTreeRoot.children.last.children[n].data);
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}
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print("last node: ${zoomTreeRoot.children.last.children.last.data}"); //good
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print("third layer");
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for (int thirdLayer = 0;
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thirdLayer < zoomTreeRoot.children.last.children.length;
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thirdLayer++) {
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print(zoomTreeRoot.children.last.children[thirdLayer].children);
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}
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print("third layer contents first"); //not sure
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print(zoomTreeRoot.children.last.children[5].children[0].data); //good
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for (int contentsOf4 = 1;
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contentsOf4 < zoomTreeRoot.children.last.children[5].children.length;
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contentsOf4++) {
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print(zoomTreeRoot.children.last.children[5].children[contentsOf4].data);
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}
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if (!mounted) return;
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setState(() {
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_isLoaded = true;
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});
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}
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void handleKeyDownMD(web.Event event) async {
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final keyEvent = event as web.KeyboardEvent;
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if (!mounted) return;
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if (keyEvent.key == 'a') {
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print("key a");
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setState(() {
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level = (level - 1).clamp(0, sentinel.length - 1);
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});
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// _buildForZooms(level + 1); //probably need a level?
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} else if (keyEvent.key == "b") {
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print("b");
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setState(() {
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level = (level + 1).clamp(0, sentinel.length - 1);
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});
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// _buildForZooms(level - 1); //probably need a level?
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}
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}
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void _registerViewFactory(List<String> currentContent) async {
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// setState(() { //update to do item per item
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// each item to have itsviewtype ID
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// is this necessarey here??
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//could just move to collapsable
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for (var emailHTML in widget.threadHTML) {
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String viewTypeId = 'email-${DateTime.now().millisecondsSinceEpoch}';
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final ghost = web.document.createElement('div') as web.HTMLDivElement
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..style.visibility = 'hidden'
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..style.position = 'absolute'
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..style.width = '100%'
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..style.overflow = 'auto'
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..innerHTML = emailHTML
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.toJS; // temporarily index because it has to do all of them
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web.document.body?.append(ghost);
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await Future.delayed(Duration(milliseconds: 10));
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final heightOfEmail = ghost.scrollHeight;
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ghost.remove();
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final HTMLsnippet = web.document.createElement('div')
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as web.HTMLDivElement
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..id = viewTypeId
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..innerHTML = emailHTML
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.toJS; // temporarily index because it has to do all of them
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HTMLsnippet.style
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..width = '100%'
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..height = '${heightOfEmail}px'
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..overflow = 'auto'
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..scrollBehavior = 'smooth';
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ui.platformViewRegistry.registerViewFactory(
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viewTypeId,
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(int viewId) => HTMLsnippet,
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);
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viewtypeIDs.add(viewTypeId);
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heightOfViewTypes.add(heightOfEmail);
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}
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}
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void _serializableData(String threadID) async {
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emailsInThread = await ApiService().threadsInSerializable(threadID);
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print("done thread serializable");
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if (!mounted) return;
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setState(() {
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_isLoaded = true;
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});
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}
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void handleKeyDownHTML(web.Event event) {
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final keyEvent = event as web.KeyboardEvent;
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if (keyEvent.key == 'G') {
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print('You pressed the "G" key!');
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final rightPurpleNums = web.document.getElementsByClassName("right");
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_CollapsableEmailsState.right = !_CollapsableEmailsState.right;
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final newOpacity = _CollapsableEmailsState.right ? '1.0' : '0.0';
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for (int i = 0; i < rightPurpleNums.length; i++) {
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final currentElement = rightPurpleNums.item(i) as web.HTMLElement;
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currentElement.style.opacity = newOpacity;
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}
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} else if (keyEvent.key == 'H') {
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print('You pressed the "H" key!');
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final leftPurpleNums = web.document.getElementsByClassName("left");
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_CollapsableEmailsState.left = !_CollapsableEmailsState.left;
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final newOpacity = _CollapsableEmailsState.left ? '1.0' : '0.0';
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for (int i = 0; i < leftPurpleNums.length; i++) {
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final currentElement = leftPurpleNums.item(i) as web.HTMLElement;
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currentElement.style.opacity = newOpacity;
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}
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} else if (keyEvent.key == 'm') {
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print("you pressed 'm'");
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final purpleNums = web.document.getElementsByClassName("purplenumber");
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_CollapsableEmailsState.left = true;
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_CollapsableEmailsState.right = true;
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for (int i = 0; i < purpleNums.length; i++) {
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final currentElement = purpleNums.item(i) as web.HTMLElement;
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currentElement.style.opacity = '1.0';
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}
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} else if (keyEvent.key == 'n') {
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print("you pressed 'n'");
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final purpleNums = web.document.getElementsByClassName("purplenumber");
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_CollapsableEmailsState.left = false;
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_CollapsableEmailsState.right = false;
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for (int i = 0; i < purpleNums.length; i++) {
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final currentElement = purpleNums.item(i) as web.HTMLElement;
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currentElement.style.opacity = '0.0';
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}
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} else if (keyEvent.key == 'w') {
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print("you pressed 'w'");
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// getTopLevel();
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}
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}
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void _keyListener() {
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if (_isListenerRegistered) return;
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_isListenerRegistered = true;
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// Convert the top-level function to JS-compatible
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// _listener = handleKeyDownHTML.toJS;
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_listener = handleKeyDownMD.toJS;
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web.window.document.addEventListener('keydown', _listener!);
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}
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// void getTopLevel() {
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// print("started top");
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// int highest = 0;
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// AugmentTree zoomTreeRoot = AugmentTree();
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// // zoomTreeRoot.data = emailsHTML[0]; // whole thing
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// while (highest < hirarchy.length - 1) {
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// var highestElement = web.document.querySelectorAll(hirarchy[highest]);
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// print("nodelist $highestElement");
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// if (highestElement.isNull || highestElement.length == 0) {
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// //from h1, h2, h3, ..., p.
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// highest += 1;
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// print(hirarchy[highest]);
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// } else {
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// AugmentTree newLevel = AugmentTree(); // list of children of each level
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// for (int i = 0; i < highestElement.length; i++) {
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// print(highestElement.item(i)?.textContent);
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// tagsCollected
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// .add(highestElement.item(i)?.textContent ?? "nameless subtitle");
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// newLevel.children
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// .add(highestElement.item(i)?.textContent ?? "nameless subtitle");
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// }
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// // traverse to last node and add new level to it
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// // next
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// if (zoomTreeRoot.node == null) {
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// zoomTreeRoot.node = newLevel;
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// } else {
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// AugmentTree temp = zoomTreeRoot;
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// while (true) {
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// //get to the last and assign node = last node
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// if (temp.node != null) {
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// temp = temp.node!;
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// } else {
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// temp.node = newLevel;
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// break;
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// }
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// }
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// }
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// highest += 1;
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// }
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// }
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// print("out safely");
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// print(tagsCollected); //instead of a list make a tree
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// print(zoomTreeRoot.children);
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// print(zoomTreeRoot.node?.children);
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// print(zoomTreeRoot.node?.node?.children);
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// print(zoomTreeRoot.node?.node?.node?.children);
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// }
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Widget _buildForZooms(int lvl) {
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this.level = lvl;
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if (lvl < 0 || lvl >= sentinel.length) {
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return Center(child: Text("No content at level $lvl"));
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}
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return ListView.builder(
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itemCount: this.sentinel[level].length,
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itemBuilder: (context, index) {
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 6.0),
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child: Material(
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elevation: 1,
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borderRadius: BorderRadius.circular(12),
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color: Theme.of(context).colorScheme.surface,
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surfaceTintColor: Theme.of(context).colorScheme.surfaceTint,
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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child: MarkdownBlock(
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data: sentinel[level][index], // one string of markdown
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config: MarkdownConfig
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.darkConfig, // or lightConfig depending on theme
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),
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),
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),
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);
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},
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);
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}
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@override
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Widget build(BuildContext context) {
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return _isLoaded
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? Column(children: [
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Expanded(
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// child: MarkdownWidget(data: markdown), //hmmm
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child: _buildForZooms(level),
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)
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// Expanded(
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// child: ListView.builder(
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// itemCount: widget.thread.length,
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// itemBuilder: (context, index) {
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// final isExpanded = _expandedEmails
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// .contains(index); //check if email is expanded
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// return Column(
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// children: [
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// ListTile(
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// title: Text(emailsInThread[index].from),
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// trailing: Text(emailsInThread[index].date),
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// onTap: () {
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// setState(() {
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// if (isExpanded) {
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// _expandedEmails.remove(index);
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// } else {
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// _expandedEmails.add(index);
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// }
|
|
// });
|
|
// },
|
|
// ),
|
|
// if (isExpanded)
|
|
// SizedBox(
|
|
// height: heightOfViewTypes[index].toDouble(),
|
|
// child: HtmlElementView(
|
|
// key: UniqueKey(), viewType: viewtypeIDs[index]),
|
|
// ),
|
|
// Divider(),
|
|
// ],
|
|
// );
|
|
// },
|
|
// ),
|
|
// )
|
|
])
|
|
: const Center(child: CircularProgressIndicator());
|
|
}
|
|
}
|