tests: add some runtime error in nitin.input
[nit.git] / src / examples / nitlight_as_a_service.nit
index 7e68dc9..e117268 100644 (file)
@@ -40,7 +40,7 @@ do
        var mb = new ModelBuilder(model, tc)
 
        # Parse the code
-       var source = new SourceFile.from_string("", content)
+       var source = new SourceFile.from_string("", content + "\n")
        var lexer = new Lexer(source)
        var parser = new Parser(lexer)
        var tree = parser.parse
@@ -76,6 +76,32 @@ class HLCode
 
        # The pseudo source-file
        var source: SourceFile
+
+       # JavaScript code to update an existing codemirror editor.
+       fun code_mirror_update: Template
+       do
+
+               var res = new Template
+               res.add """
+       function nitmessage() {
+               editor.operation(function(){
+                       for (var i = 0; i < widgets.length; ++i)
+                             editor.removeLineWidget(widgets[i]);
+                       widgets.length = 0;
+"""
+
+               for m in source.messages do
+                       res.add """
+                       var l = document.createElement("div");
+                       l.className = "lint-error"
+                       l.innerHTML = "<span class='glyphicon glyphicon-warning-sign lint-error-icon'></span> {{{m.text.html_escape}}}";
+                       var w = editor.addLineWidget({{{m.location.line_start-1}}}, l);
+                       widgets.push(w);
+"""
+               end
+               res.add """});}"""
+               return res
+       end
 end
 
 # Nitcorn service to hightlight code
@@ -88,7 +114,24 @@ class HighlightAction
        do
                var hl = new HighlightVisitor
                var page = new Template
+
+               # There is code? Process it
                var code = http_request.post_args.get_or_null("code")
+               var hlcode = null
+               if code != null then hlcode = hightlightcode(hl, code)
+
+               if http_request.post_args.get_or_null("ajax") == "true" and hlcode != null then
+                       page.add hlcode.code_mirror_update
+                       page.add """
+                       document.getElementById("lightcode").innerHTML = "{{{hl.html.write_to_string.escape_to_c}}}";
+                       nitmessage();
+                       """
+
+                       var response = new HttpResponse(200)
+                       response.header["Content-Type"] = "application/javascript"
+                       response.body = page.write_to_string
+                       return response
+               end
 
                page.add """
                <!doctype html><html><head>{{{hl.head_content}}}
@@ -96,6 +139,8 @@ class HighlightAction
                <style>
                        {{{hl.css_content}}}
                        textarea {width:100%;}
+                       .lint-error {font-family: arial; font-size: 70%; background: #ffa; color: #a00; padding: 2px 5px 3px; }
+                       .lint-error-icon {color: red; padding: 0 3px; margin-right: 7px;}
                </style></head><body>
                """
                # Add the form+textarea
@@ -103,10 +148,7 @@ class HighlightAction
                <form action="#light" method=post><textarea id=code name=code rows=10>{{{code or else ""}}}</textarea><br><input type=submit></form>
                """
 
-               if code != null then
-                       # There is code? Process it
-                       var hlcode = hightlightcode(hl, code)
-
+               if hlcode != null then
                        # Inject highlight
                        page.add "<pre id=light><code id=lightcode>"
                        page.add hl.html.write_to_string
@@ -118,6 +160,8 @@ class HighlightAction
                                page.add "<li>{m.location.as(not null)}: {m.text}</li>"
                        end
                        page.add "</ul>"
+               else
+                       page.add "<pre id=light><code id=lightcode></code></pre>"
                end
 
                page.add hl.foot_content
@@ -129,6 +173,32 @@ class HighlightAction
                var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
                        lineNumbers: true
                });
+               """
+
+               # Callback to update codemirror messages
+               if hlcode != null then
+                       page.add hlcode.code_mirror_update
+               else
+                       page.add "function nitmessage()\{\}"
+               end
+               page.add """
+               var widgets = [];
+               nitmessage();
+
+               function updatePage() {
+               $.post("", { ajax: true, code: editor.getValue()}, function(data) {
+                       eval(data);
+                       $(".popupable").popover({html:true, placement:'top'});
+               });
+               }
+
+               var waiting;
+               editor.on("change", function() {
+                       clearTimeout(waiting);
+                       waiting = setTimeout(updatePage, 500);
+               });
+               waiting = setTimeout(updatePage, 500);
+
                </script>
                </body></html>
                """