Hatena::Let Omikuji

by noromanba 2016-01-11 [2016/01/11 03:15:32]

Hatena::Let Fortune cookie

@@ -8,11 +8,11 @@
  * @require
  */
 
-// TODO feedback indicator
+// TBD feedback indicator
 (function () {
     if (location.hostname !== 'let.hatelabo.jp') {
         location.href = 'http://let.hatelabo.jp';
-        return; // for Fx
+        return; // for Firefox
     }
 
     var random = function (max) {
@@ -22,27 +22,26 @@
     // c.f. http://cho45.stfuawsc.com/jsdeferred/
     //      http://cho45.stfuawsc.com/jsdeferred/doc/
     //      http://gihyo.jp/dev/feature/01/jsdeferred/
-    //      http://d.hatena.ne.jp/edvakf/20090414/1239726515
-
-    var total;
-    Ten.Deferred. // if you want to use 'Deferred' in globaly, replace to 'Ten.Deferred.define()'
-    next(function (D) {
+    Ten.Deferred. // if you want to use 'Deferred' in globaly, replace to 'Ten.Deferred.define();'
+    next(function () {
+        var D = Ten.Deferred();
         new Ten.XHR('http://let.hatelabo.jp/', null, function (req) {
-            var countSelector = /<span\sclass=\"top-bookmarklet-count\">\s+(\d+)\sBookmarklets!\s+<\/span>/;
-            total = (countSelector.exec(req.responseText) || [])[1];
+            var countSelector = /\"top-bookmarklet-count\"\D+(\d+)/;
+            var total = (countSelector.exec(req.responseText) || [])[1];
+            D.call(total);
         });
+        return D;
     }).
-    // XXX 1st and 2nd XHR are async. needs to be create new D and return D-wrapped func within callback of next() 
-    //     i.e. if 1st responce time approx over 1sec(1000ms), 2nd XHR fail. why? the 'count' is undefined yet
-    //          possible cause when networks too slow
-    wait(1). // stopgap
-    next(function (D) {
+    next(function (total) {
+        if (!total) return;
+
+        // TODO deferred-wrap to XHR for error-handling
         // http://let.hatelabo.jp/?of=<offset> offset: 0 origin
         new Ten.XHR('http://let.hatelabo.jp/?of=' + random(total - 1), null, function (req) {
-            var codeSelector = /<a\shref\="(\/[\w-]+\/let\/[\w-]+)"/g;
+            var codeSelector = /href\="(\/[\w-]+\/let\/[\w-]+)"/g;
             var code, codes = [];
             while ((code = codeSelector.exec(req.responseText))) {
-                codes.push(code[1]); // absolutely refer captured-group
+                codes.push(code[1]);
             }
             if (codes.length < 1) return;
 

• /*
   * @title Hatena::Let::Omikuji
   * @description Hatena::Let Fortune cookie
   * @include http://let.hatelabo.jp/*
   * @include https://let.hatelabo.jp/*
   * @license MIT License http://nrm.mit-license.org/2012
   * @author noromanba (http://flavors.me/noromanba)
   * @require
   */
  
  // TBD feedback indicator
  (function () {
      if (location.hostname !== 'let.hatelabo.jp') {
          location.href = 'http://let.hatelabo.jp';
          return; // for Firefox
      }
  
      var random = function (max) {
          return Math.floor(Math.random() * Number(max) + 1);
      };
  
      // c.f. http://cho45.stfuawsc.com/jsdeferred/
      //      http://cho45.stfuawsc.com/jsdeferred/doc/
      //      http://gihyo.jp/dev/feature/01/jsdeferred/
      Ten.Deferred. // if you want to use 'Deferred' in globaly, replace to 'Ten.Deferred.define();'
      next(function () {
          var D = Ten.Deferred();
          new Ten.XHR('http://let.hatelabo.jp/', null, function (req) {
              var countSelector = /\"top-bookmarklet-count\"\D+(\d+)/;
              var total = (countSelector.exec(req.responseText) || [])[1];
              D.call(total);
          });
          return D;
      }).
      next(function (total) {
          if (!total) return;
  
          // TODO deferred-wrap to XHR for error-handling
          // http://let.hatelabo.jp/?of=<offset> offset: 0 origin
          new Ten.XHR('http://let.hatelabo.jp/?of=' + random(total - 1), null, function (req) {
              var codeSelector = /href\="(\/[\w-]+\/let\/[\w-]+)"/g;
              var code, codes = [];
              while ((code = codeSelector.exec(req.responseText))) {
                  codes.push(code[1]);
              }
              if (codes.length < 1) return;
  
              location.pathname = codes[random(codes.length - 1)];
          });
      }).
      error(function (e) {
          if (console && console.warn) {
              console.warn('*error caught by Hatena::Let::Omikuji =>', e);
          }
      });
  })();

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