mirror of https://github.com/JustKato/FreePad.git
77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
class PadSocket {
|
|
|
|
ws = null;
|
|
padName = null;
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
state = null;
|
|
|
|
/**
|
|
* Create a new PadSocket
|
|
* @param {string} padName The name of the pad
|
|
* @param {string} connUrl The URL to the websocket
|
|
*/
|
|
constructor(padName, connUrl = null) {
|
|
|
|
// Check if a connection URL was mentioned
|
|
if ( connUrl == null ) {
|
|
// Try and connect to the local websocket
|
|
connUrl = `ws://` + window.location.host + "/ws/get";
|
|
}
|
|
|
|
// Connect to the websocket
|
|
const ws = new WebSocket(connUrl);
|
|
ws.onopen = () => {
|
|
// TODO: This is redundant, we could check the websocket status: ws.readyState == WebSocket.OPEN
|
|
this.state = 'active';
|
|
}
|
|
|
|
// Bind the onMessage function
|
|
ws.onmessage = this.handleMessage;
|
|
|
|
// Assign the websocket
|
|
this.ws = ws;
|
|
// Assign the pad name
|
|
this.padName = padName;
|
|
}
|
|
|
|
/**
|
|
* @description Send a message to the server
|
|
* @param {string} eventType The type of event, this can be anything really, it's just used for routing by the server
|
|
* @param {Object} message The message to send out to the server, this can only be of format string but JSON is parsed.
|
|
*/
|
|
sendMessage = (eventType, message) => {
|
|
|
|
if ( this.state != 'active' ) {
|
|
throw new Error(`The websocket connection is not active`);
|
|
}
|
|
|
|
// Check if the message is a string
|
|
if ( typeof message == 'string' ) {
|
|
// Convert the message into a map[string]interface{}
|
|
message = {
|
|
"message": message,
|
|
};
|
|
}
|
|
|
|
// TODO: Compress the message, usually we will be sending the whole body of the pad from the client to the server or vice-versa.
|
|
this.ws.send( JSON.stringify({
|
|
eventType,
|
|
padName: this.padName,
|
|
message,
|
|
}))
|
|
|
|
}
|
|
|
|
handleMessage = ev => {
|
|
console.log(ev);
|
|
}
|
|
|
|
}
|
|
|
|
// TODO: Test if this is actually necessary or the DOMContentLoaded event would suffice
|
|
// wait for the whole window to load
|
|
window.addEventListener(`load`, e => {
|
|
window.socket = new PadSocket(padTitle);
|
|
}) |