loglang-tatoeba/script.js at main · dembim/loglang-tatoeba · GitHub

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var g_data = [];
var g_language = "All";

function highlight_row(row) {
	var t = row.constructor.name;
	console.assert(
		t === "HTMLTableRowElement",
		"⟦row⟧ is not an HTMLTableRowElement but a " + t + "!");
	// Remove highlight from previously selected row, if any
	const previously_selected_row =
		document.querySelector('tr.selected');
	if (previously_selected_row) {
		previously_selected_row.classList.remove('selected');
	}
	// Highlight the clicked row
	row.classList.add('selected');
}
function shift_selected_row(n) {
	const previously_selected_row =
		document.querySelector('tr.selected');
	if (previously_selected_row) {
		const newly_selected_row = (n > 0)
			? previously_selected_row.previousElementSibling
			: previously_selected_row.nextElementSibling;
		if (newly_selected_row) {
			highlight_row(newly_selected_row);
			update_details(newly_selected_row);
		}
	}
}
function handle_keydown(e) {
	e = e || window.event;
	if (e.keyCode == "38") {
		shift_selected_row(1);
	} else if (e.keyCode == "40") {
		shift_selected_row(-1);
	}
}
function fmt(s) {
	if (s.includes("\n")) {
		var c = "";
		s.split("\n").forEach((e, i, l) => {
			c += "<tr><td>" + e + "</td></tr>";
		});
		s = "<table>" + c + "</table>";
	}
	return s;
}
function update_details(row) {
	var content = "";
	if (row.childElementCount > 0) {
		var first = "";
		for (const child of row.children) {
			first = child.innerText;
			break;
		}
		var entry = g_data.find((e) => e["English"] == first);
		for (var key in entry) {
			//if (["Context"].includes(key)) continue;
			content += `
						<tr>
							<td class="lang-td">
								${key}
							</td>
							<td class="trans-td">
								${fmt(entry[key])}
							</td>
						</tr>
			`;
		}
	}
	document.getElementById("details-body").innerHTML = content;
}
function setup() {
	fetch('./data.yaml')
    .then((response) => response.text())
    .then((yaml) => setup_2(jsyaml.load(yaml)))
}
function setup_2(data) {
	g_data = data;
	var languages = all_languages_in(data);
	var s = "";
	for (var l of languages) {
		s += `<option value='${l}'>${l}</option>`;
	}
	document.getElementById("language-selector").innerHTML += s;
	run();
}

function run() {
	var prev_language = g_language;
	g_language = document.getElementById("language-selector").value;
	if (g_language != prev_language) {
		if (g_language != "All") switch_display_to_single_language();
		else switch_display_to_all_languages();
	}
	var content = "";
	for (const row of g_data) {
		var ext = "";
		var t = "";
		if (g_language != "All") {
			t = "2";
			var v = (g_language in row) ? fmt(row[g_language]) : "";
			ext = `
							<td class="trans2-td">
								${v}
							</td>
			`
		}
		content += `
						<tr>
							<td class="eng${t}-td">
								${row["English"]}
							</td>
							<td class="ctx${t}-td">
								${row["Context"]}
							</td>${ext}
						</tr>
		`;
	}
	document.getElementById("entries-body").innerHTML = content;
	const rows = document.querySelectorAll('.entries tr');
	for (let i = 0; i < rows.length; i++) {
		rows[i].onclick = function() {
			highlight_row(this);
			update_details(this);
		};
	}
	document.addEventListener('keydown', handle_keydown, true);
}

function all_languages_in(data) {
	var languages = [];
	for (var e of data) {
		for (var key in e) {
			if (["English", "Context"].includes(key)) continue;
			if (!languages.includes(key))
				languages.push(key);
		}
	}
	return languages;
}

function switch_display_to_all_languages() {
	document.getElementById("details-div").style.display = "flex";
	document.getElementById("trans2-div").style.display = "none";
	document.getElementById("eng-div").className = "eng-td";
	document.getElementById("ctx-div").className = "ctx-td";
}

function switch_display_to_single_language() {
	document.getElementById("details-div").style.display = "none";
	document.getElementById("trans2-div").style.display = "";
	document.getElementById("trans2-div").innerHTML = g_language;
	document.getElementById("eng-div").className = "eng2-td";
	document.getElementById("ctx-div").className = "ctx2-td";
}

setup();