nmbug.js: Fill in the tag-fetching portion of nmbug.show

Ask nmhive for the tags associated with the given Message-ID.

I've also used bind [1] so that the nmbug.show callback get's called
with this pointing to the nmbug object.

[1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind

diff --git a/nmbug.js b/nmbug.js
index 5a8a14142c51b43973fdee754907f08eef1cb4e7..332172905e1085d7225df39987a4dbd9fb99b827 100644 (file)
--- a/nmbug.js
+++ b/nmbug.js
@@ -2,7 +2,30 @@ var nmbug_server = 'http://localhost:5000';
 
 nmbug = {
        show: function (message_id) {
-               alert(message_id);
+               this._get_tags(message_id, this._edit_tags.bind(this));
+       },
+       _get_tags: function (message_id, callback) {
+               var url = [
+                       nmbug_server,
+                       'mid',
+                       encodeURIComponent(message_id),
+                       ].join('/');
+               console.log('nmbug: get tags from ' + url);
+               var request = new XMLHttpRequest();
+               request.onload = function () {
+                       if (this.status == 200) {
+                               var tags = JSON.parse(this.response);
+                               console.log('nmbug: got tags', tags);
+                               callback(message_id, tags);
+                       } else {
+                               throw 'Error fetching ' + url + ' (status ' + this.status + ')';
+                       }
+               };
+               request.open('get', url, true);
+               request.send();
+       },
+       _edit_tags: function (message_id, tags) {
+               alert('edit ' + tags + ' for ' + message_id);
        },
 };
 
@@ -58,7 +81,7 @@ function _check_handler(handler) {
        console.log('nmbug: testing', handler, match);
        if (match) {
                console.log('nmbug: matched', handler);
-               handler.handle(nmbug.show);
+               handler.handle(nmbug.show.bind(nmbug));
        }
        return match;  /* break after the first match */
 }