Add json-responding api calls

It is somewhat more native to javascript. Or could be, at least.

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/content/flickr.js b/content/flickr.js
index e09d5f0..545144c 100644
--- a/content/flickr.js
+++ b/content/flickr.js
@@ -105,32 +105,52 @@ Flickr.prototype = {
  api_call_url: function(params,url) {
   params.api_key = this.api_key;
   var pp = new Array();
   for(var p in params) {
    pp.push(p);
   }
   var pstr = '';
   var rv = (url?url:this.rest_url)+'?';
   for(var p in pp.sort()) {
    var pn = pp[p];
    pstr += pn+params[pn];
    rv += pn+'='+params[pn]+'&';
   }
   rv += 'api_sig='+this.api_sig(pstr);
   return rv;
  },
+ api_call_json: function(params,on_success,on_failure) {
+  if(params.auth_token=='default') params.auth_token=this.token;
+  params.format = 'json'; params.nojsoncallback=1;
+  var x = new XMLHttpRequest();
+  x.open("GET",this.api_call_url(params));
+  x.onreadystatechange=function() {
+   if(x.readyState!=4) return false;
+   if(x.status==200) {
+    var rsp=JSON.parse(x.responseText);
+    if(rsp.stat=='ok')
+     on_success && on_success(x,rsp);
+    else
+     on_failure && on_failure(rsp,rsp.stat,rsp.code,rsp.message);
+   }else
+    on_failure && on_failure(x);
+   return true;
+  };
+  x.send(null);
+  return true;
+ },
  api_call: function(params, on_success, on_failure) {
   if(params.auth_token == 'default')
    params.auth_token = this.token;
   var x = new XMLHttpRequest();
   x.open("GET",this.api_call_url(params));
   x.onreadystatechange=function() {
    if(x.readyState!=4) return false;
    if(x.status==200) {
     var stat = x.responseXML.firstChild.getAttribute('stat');
     if(stat=='ok') {
      if(on_success) on_success(x);
     }else{
      var e = x.responseXML.getElementsByTagName('err').item(0);
      var ecode = e.getAttribute('code');
      var emsg = e.getAttribute('msg');
      dump(params.method+' failed: '+ecode+' '+emsg+'\n');