diff options
Diffstat (limited to 'fg21sim/webui/static')
| -rw-r--r-- | fg21sim/webui/static/js/websocket.js | 164 |
1 files changed, 101 insertions, 63 deletions
diff --git a/fg21sim/webui/static/js/websocket.js b/fg21sim/webui/static/js/websocket.js index 8060874..0480716 100644 --- a/fg21sim/webui/static/js/websocket.js +++ b/fg21sim/webui/static/js/websocket.js @@ -8,15 +8,6 @@ "use strict"; /** - * Global variable - * FIXME: try to avoid this ... - */ -var g_ws = null; /* WebSocket */ -/* WebSocket reconnection settings */ -var g_ws_reconnect = {maxTry: 21, tried: 0, timeout: 3000}; - - -/** * Get the full WebSocket URL from the given URI */ var getWebSocketURL = function (uri) { @@ -92,54 +83,6 @@ var updateWSStatus = function (action) { }; -/** - * Connect to WebSocket and bind functions to events - */ -var connectWebSocket = function (url) { - g_ws = new WebSocket(url); - g_ws.onopen = function () { - console.log("Opened WebSocket:", g_ws.url); - updateWSStatus("open"); - toggleWSReconnect("hide"); - }; - g_ws.onclose = function (e) { - console.log("WebSocket closed: code:", e.code, ", reason:", e.reason); - updateWSStatus("close"); - // Reconnect - if (g_ws_reconnect.tried < g_ws_reconnect.maxTry) { - g_ws_reconnect.tried++; - console.log("Try reconnect the WebSocket: No." + g_ws_reconnect.tried); - setTimeout(function () { connectWebSocket(url); }, - g_ws_reconnect.timeout); - } else { - console.error("WebSocket already tried allowed maximum times:", - g_ws_reconnect.maxTry); - toggleWSReconnect("show"); - } - }; - g_ws.onerror = function (e) { - console.error("WebSocket encountered error:", e.message); - updateWSStatus("error"); - toggleWSReconnect("show"); - }; - g_ws.onmessage = function (e) { - var msg = JSON.parse(e.data); - console.log("WebSocket received message:", msg); - // Delegate appropriate actions to handle the received message - if (msg.type === "configs") { - handleWebSocketMsgConfigs(msg); - } else if (msg.type === "console") { - handleWebSocketMsgConsole(msg); - } else if (msg.type === "products") { - console.error("NotImplementedError"); - } else { - // Unknown/unsupported message type - console.warn("WebSocket: unknown message type:", msg.type); - } - }; -}; - - $(document).ready(function () { /** * Check "WebSocket" support @@ -148,15 +91,110 @@ $(document).ready(function () { // WebSocket supported console.log("Great, WebSocket is supported!"); - var ws_url = getWebSocketURL("/ws"); - connectWebSocket(ws_url); + // Custom object for WebSocket handling + var websocket = { + // URL for the WebSocket connection + url: getWebSocketURL("/ws"), + + // Allowed maximum number of reconnection times + reconnectionMaxTry: 21, + // Current number of tried reconnection times + reconnectionTried: 0, + // Wait time (unit: ms) before trying to reconnect + reconnectionWaitTime: 3000, + + // Events handlers will be bound to the opened WebSocket object + onopen: function () { + console.log("Opened WebSocket:", this.url); + updateWSStatus("open"); + toggleWSReconnect("hide"); + }, + onclose: function (e) { + var self = this; + console.log("WebSocket closed: code:", e.code, ", reason:", e.reason); + updateWSStatus("close"); + // Try to reconnect + if (self.reconnectionTried < self.reconnectionMaxTry) { + self.reconnectionTried++; + console.log("Try reconnect the WebSocket: No." + + self.reconnectionTried); + setTimeout(function () { self.connect(); }, + self.reconnectionWaitTime); + } else { + console.error("WebSocket already tried allowed maximum times:", + self.reconnectionMaxTry); + toggleWSReconnect("show"); + } + }, + onerror: function (e) { + console.error("WebSocket encountered error:", e.message); + updateWSStatus("error"); + toggleWSReconnect("show"); + }, + onmessage: function (e) { + var msg = JSON.parse(e.data); + console.log("WebSocket received message:", msg); + // Delegate appropriate actions to handle the received message + if (msg.type === "configs") { + handleWebSocketMsgConfigs(msg); + } else if (msg.type === "console") { + handleWebSocketMsgConsole(msg); + } else { + // Unknown/unsupported message type + console.warn("WebSocket: unknown message type:", msg.type); + } + }, + + // Open the WebSocket and bind the events handlers + connect: function () { + var self = this; + var ws = new WebSocket(self.url); + ws.onopen = function (e) { self.onopen.call(self, e); }; + ws.onclose = function (e) { self.onclose.call(self, e); }; + ws.onerror = function (e) { self.onerror.call(self, e); }; + ws.onmessage = function (e) { self.onmessage.call(self, e); }; + this._websocket_ = ws; + }, + + // Force reconnect the WebSocket + forceReconnect: function () { + console.log("WebSocket: reset the tried reconnection counter"); + this.reconnectionTried = 0; + console.log("Force reconnect the WebSocket:", this.url); + this.connect(); + }, + + // Close the WebSocket + disconnect: function() { + if (this._websocket_) { + console.log("Disconnect the WebSocket:", this.url); + this._websocket_.close(); + this._websocket_ = null; + } else { + console.warn("WebSocket already disconnected!"); + } + }, + + // Force disconnect the WebSocket + forceDisconnect: function () { + this.reconnectionTried = this.reconnectionMaxTry; + console.log("Force disconnect the WebSocket:", this.url); + this.disconnect(); + }, + + // The opened WebSocket object + _websocket_: null + }; + + // Add to the global "FG21SIM" + FG21SIM.websocket = websocket; + + // Open the WebSocket connection + websocket.connect(); // Manually reconnect the WebSocket after tried allowed maximum times $("#ws-reconnect").on("click", function () { - console.log("WebSocket: reset the tried reconnection counter"); - g_ws_reconnect.tried = 0; - console.log("Manually reconnect the WebSocket:", ws_url); - connectWebSocket(ws_url); + websocket.forceReconnect(); }); } else { // WebSocket NOT supported |