github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/talks/2012/chat/http-noembed/html.go (about)

     1  // +build OMIT
     2  
     3  package main
     4  
     5  import "html/template"
     6  import "net/http"
     7  
     8  func rootHandler(w http.ResponseWriter, r *http.Request) {
     9  	rootTemplate.Execute(w, listenAddr)
    10  }
    11  
    12  var rootTemplate = template.Must(template.New("root").Parse(`
    13  <!DOCTYPE html>
    14  <html>
    15  <head>
    16  <meta charset="utf-8" />
    17  <script>
    18  
    19  var input, output, websocket;
    20  
    21  function showMessage(m) {
    22  	var p = document.createElement("p");
    23  	p.innerHTML = m;
    24  	output.appendChild(p);
    25  }
    26  
    27  function onMessage(e) {
    28  	showMessage(e.data);
    29  }
    30  
    31  function onClose() {
    32  	showMessage("Connection closed.");
    33  }
    34  
    35  function sendMessage() {
    36  	var m = input.value;
    37  	input.value = "";
    38  	websocket.send(m);
    39  	showMessage(m);
    40  }
    41  
    42  function onKey(e) {
    43  	if (e.keyCode == 13) {
    44  		sendMessage();
    45  	}
    46  }
    47  
    48  function init() {
    49  	input = document.getElementById("input");
    50  	input.addEventListener("keyup", onKey, false);
    51  
    52  	output = document.getElementById("output");
    53  
    54  	websocket = new WebSocket("ws://{{.}}/socket");
    55  	websocket.onmessage = onMessage;
    56  	websocket.onclose = onClose;
    57  }
    58  
    59  window.addEventListener("load", init, false);
    60  
    61  </script>
    62  </head>
    63  <body>
    64  <input id="input" type="text">
    65  <div id="output"></div>
    66  </body>
    67  </html>
    68  `))