67 lines
2.1 KiB
JavaScript
67 lines
2.1 KiB
JavaScript
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// WebSocket bridge for the Rudder Unity SDK (JsWebSocketAdapter).
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// Implements the __Internal__ externals declared in Realtime/JsWebSocketAdapter.cs:
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// RudderWebSocketCreate(gameObjectName, url)
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// RudderWebSocketSend(gameObjectName, data, length)
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// RudderWebSocketClose(gameObjectName)
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// Events are routed back to the bridge GameObject via SendMessage:
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// OnOpen(string), OnMessage(string base64), OnClose(string), OnError(string)
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var RudderWebSockets = {};
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function RudderWebSocketBase64(bytes) {
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var chunks = [];
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var chunkSize = 0x8000;
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for (var i = 0; i < bytes.length; i += chunkSize) {
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chunks.push(String.fromCharCode.apply(null, bytes.subarray(i, i + chunkSize)));
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}
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return btoa(chunks.join(''));
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}
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mergeInto(LibraryManager.library, {
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RudderWebSocketCreate: function (gameObjectName, url) {
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var name = UTF8ToString(gameObjectName);
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var socket = new WebSocket(UTF8ToString(url));
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socket.binaryType = 'arraybuffer';
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RudderWebSockets[name] = socket;
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socket.onopen = function () {
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SendMessage(name, 'OnOpen', 'opened');
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};
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socket.onmessage = function (event) {
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var bytes;
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if (typeof event.data === 'string') {
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// Text frame: UTF-8 encode, then base64 (the C# side decodes base64 to bytes).
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bytes = new TextEncoder().encode(event.data);
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} else {
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bytes = new Uint8Array(event.data);
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}
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SendMessage(name, 'OnMessage', RudderWebSocketBase64(bytes));
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};
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socket.onerror = function () {
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SendMessage(name, 'OnError', 'WebSocket error');
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};
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socket.onclose = function () {
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delete RudderWebSockets[name];
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SendMessage(name, 'OnClose', 'closed');
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};
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},
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RudderWebSocketSend: function (gameObjectName, data, length) {
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var socket = RudderWebSockets[UTF8ToString(gameObjectName)];
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if (!socket || socket.readyState !== WebSocket.OPEN) return;
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socket.send(HEAPU8.subarray(data, data + length));
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},
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RudderWebSocketClose: function (gameObjectName) {
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var name = UTF8ToString(gameObjectName);
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var socket = RudderWebSockets[name];
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if (socket) {
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delete RudderWebSockets[name];
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socket.close();
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}
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}
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});
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