SotM_Playfield/js/editor.js

96 lines
3.1 KiB
JavaScript

window.addEventListener("load", () => {
document.querySelector('#jsonUpload').addEventListener('change', event => {
let files = event.target.files;
let reader = new FileReader();
reader.onload = handleUpload;
reader.readAsText(files[0]);
});
});
function getSVGTemplate(name, callback) {
let xhr = new XMLHttpRequest();
xhr.addEventListener("load", () => {
let respSVG = xhr.responseXML.children[0];
callback(respSVG);
});
xhr.open("GET", "/template/" + name + ".svg");
xhr.send();
}
function handleUpload(event) {
let deckJSON = JSON.parse(event.target.result);
let deck = document.querySelector('#deck');
getSVGTemplate("environment/card", templateSVG => {
deck.style.width = Math.ceil(Math.sqrt(deckJSON.deck.length)) *
parseInt(templateSVG.getAttribute("width")) + "pt";
deck.style.height = Math.ceil(Math.sqrt(deckJSON.deck.length)) *
parseInt(templateSVG.getAttribute("height")) + "pt";
deck.innerHTML = "";
deckJSON.deck.forEach((card, index) => {
let cardSVG = templateSVG.cloneNode(true);
deck.appendChild(cardSVG);
for (let prop in card) {
if (prop !== "count") {
wrapSVGText(cardSVG.querySelector('#' + prop), String(card[prop]));
}
}
});
});
// POST the generated SVGs to the server
let data = (new XMLSerializer()).serializeToString(deck);
let xhr = new XMLHttpRequest();
xhr.open('POST', "upload");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.send(JSON.stringify({body: data, json: deckJSON}));
}
function wrapSVGText(e, string) {
// TODO: bold or italic text
e.innerHTML = ""; // clear element
let tspan = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
e.appendChild(tspan);
let words = string.split(" ");
let line = [];
while(words.length > 0) {
let word = words.shift();
line.push(word);
tspan.innerHTML = line.join(" ");
// horizontal overflow
// TODO: actually use units (also applies to vertical)
if (word === "\n" ||
(parseFloat(e.getAttribute("width")) &&
tspan.getComputedTextLength() > parseFloat(e.getAttribute("width")))) {
// if we have height, we can line wrap
if (parseFloat(e.getAttribute("height")) &&
e.children.length * parseFloat(e.getAttribute('font-size')) <
parseFloat(e.getAttribute('height'))) {
words.unshift(line.pop());
tspan.innerHTML = line.join(" ");
line = [];
tspan = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
tspan.setAttribute('x', e.getAttribute('x'));
tspan.setAttribute('dy', e.getAttribute('font-size'));
e.appendChild(tspan);
}
// vertical overflow or horizontal overflow with no height variable
// TODO: better with recursion instead?
else {
line = [];
e.innerHTML = ""; // remove all tspans
tspan = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
e.appendChild(tspan);
// TODO: maybe binary search font size later if I really care
e.setAttribute('font-size', parseFloat(e.getAttribute('font-size')) * 0.9);
words = string.split(" ");
console.log("resetting, size= " + e.getAttribute('font-size'));
}
}
}
}