marked Casper.extend() as obsolete; updated samples/extends.(js|coffee) samples

@@ -693,7 +693,6 @@ Casper.prototype.open = function(location, settings) {
         }
     }
     this.emit('open', this.requestUrl, settings);
-    //this.page.open(this.requestUrl, settings.method, settings.data);
     this.page.openUrl(this.requestUrl, {
         operation: settings.method,
         data:      settings.data
@@ -759,7 +758,7 @@ Casper.prototype.run = function(onComplete, time) {
     }
     this.log(f("Running suite: %d step%s", this.steps.length, this.steps.length > 1 ? "s" : ""), "info");
     this.emit('run.start');
-    this.checker = setInterval(this.checkStep, (time ? time: 250), this, onComplete);
+    this.checker = setInterval(this.checkStep, (time ? time: 100), this, onComplete);
     return this;
 };
 
@@ -939,8 +938,8 @@ Casper.prototype.thenClick = function(selector, then, fallbackToHref) {
     if (arguments.length > 2) {
         this.emit("deprecated", "The thenClick() method does not process the fallbackToHref argument since 0.6");
     }
-    this.then(function(self) {
-        self.click(selector);
+    this.then(function() {
+        this.click(selector);
     });
     return utils.isFunction(then) ? this.then(then) : this;
 };
@@ -955,8 +954,8 @@ Casper.prototype.thenClick = function(selector, then, fallbackToHref) {
  * @see    Casper#evaluate
  */
 Casper.prototype.thenEvaluate = function(fn, context) {
-    return this.then(function(self) {
-        self.evaluate(fn, context);
+    return this.then(function() {
+        this.evaluate(fn, context);
     });
 };
 
@@ -969,8 +968,8 @@ Casper.prototype.thenEvaluate = function(fn, context) {
  * @see    Casper#open
  */
 Casper.prototype.thenOpen = function(location, then) {
-    this.then(this.createStep(function(self) {
-        self.open(location);
+    this.then(this.createStep(function() {
+        this.open(location);
     }, {
         skipLog: true
     }));
@@ -1030,15 +1029,15 @@ Casper.prototype.wait = function(timeout, then) {
     if (then && !utils.isFunction(then)) {
         this.die("wait() a step definition must be a function");
     }
-    return this.then(function(self) {
-        self.waitStart();
-        setTimeout(function() {
+    return this.then(function() {
+        this.waitStart();
+        setTimeout(function(self) {
           self.log(f("wait() finished wating for %dms.", timeout), "info");
           if (then) {
             then.call(self, self);
           }
           self.waitDone();
-        }, timeout);
+        }, timeout, this);
     });
 };
 
@@ -1069,8 +1068,8 @@ Casper.prototype.waitFor = function(testFx, then, onTimeout, timeout) {
     if (then && !utils.isFunction(then)) {
         this.die("waitFor() next step definition must be a function");
     }
-    return this.then(function(self) {
-        self.waitStart();
+    return this.then(function() {
+        this.waitStart();
         var start = new Date().getTime();
         var condition = false;
         var interval = setInterval(function(self, testFx, timeout, onTimeout) {
@@ -1095,7 +1094,7 @@ Casper.prototype.waitFor = function(testFx, then, onTimeout, timeout) {
                     clearInterval(interval);
                 }
             }
-      }, 100, self, testFx, timeout, onTimeout);
+        }, 100, this, testFx, timeout, onTimeout);
     });
 };
 
@@ -1187,8 +1186,11 @@ Casper.prototype.waitWhileVisible = function(selector, then, onTimeout, timeout)
  * Extends Casper's prototype with provided one.
  *
  * @param  Object  proto  Prototype methods to add to Casper
+ * @deprecated
+ * @since 0.6
  */
 Casper.extend = function(proto) {
+    console.warn('Casper.extend() has been deprecated since 0.6; check the docs');
     if (!utils.isObject(proto)) {
         throw new Error("extends() only accept objects as prototypes");
     }

@@ -131,28 +131,27 @@ function format(f) {
 exports.format = format;
 
 /**
- * Inherit the prototype methods from one constructor into another.
+ * Inherit the prototype methods from one constructor into another, also
+ * exposes the `__super__` property to child class.
  *
- * The Function.prototype.inherits from lang.js rewritten as a standalone
- * function (not on Function.prototype). NOTE: If this file is to be loaded
- * during bootstrapping this function needs to be revritten using some native
- * functions as prototype setup using normal JavaScript does not work as
- * expected during bootstrapping (see mirror.js in r114903).
- *
- * @param {function} ctor Constructor function which needs to inherit the
+ * @param  Function  child   Constructor function which needs to inherit the
  *                           prototype.
- * @param {function} superCtor Constructor function to inherit prototype from.
+ * @param  Function  parent  Constructor function to inherit prototype from.
+ * @return Function          The child class
  */
-function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor;
-    ctor.prototype = Object.create(superCtor.prototype, {
-        constructor: {
-            value: ctor,
-            enumerable: false,
-            writable: true,
-            configurable: true
+function inherits(child, parent) {
+    for (var key in parent) {
+        if (Object.prototype.hasOwnProperty.call(parent, key)) {
+            child[key] = parent[key];
         }
-    });
+    }
+    function ctor() {
+        this.constructor = child;
+    }
+    ctor.prototype = parent.prototype;
+    child.prototype = new ctor();
+    child.__super__ = parent.prototype;
+    return child;
 }
 exports.inherits = inherits;
 

-Casper = require('casper').Casper
+links =
+    'http://edition.cnn.com/': 0
+    'http://www.nytimes.com/': 0
+    'http://www.bbc.co.uk/': 0
+    'http://www.guardian.co.uk/': 0
 
-articles = []
+class Fantomas extends require('casper').Casper
+    countLinks: ->
+        @evaluate ->
+            __utils__.findAll('a').length
 
-###
-Adds two new methods to the Casper prototype: fetchTexts and renderJSON.
-###
-Casper.extend
-    # Adds a new navigation step for casper; basically it will:
-    #
-    # 1. open an url,
-    # 2. on loaded, will fetch all contents retrieved through the provided
-    #    CSS3 selector and return them in a formatted object.
-    fetchTexts: (location, selector) ->
-        @thenOpen location, ->
-            fetch = (selector) ->
-                elements = document.querySelectorAll(selector)
-                Array::map.call elements, (e) -> e.innerText
-            texts = @evaluate fetch, selector: selector
-            articles = articles.concat texts
-
-    # Echoes a JSON output of the fetched results and exits phantomjs.
     renderJSON: (what) ->
         @echo JSON.stringify what, null, '  '
-        @exit()
 
-casper = new Casper
+fantomas = new Fantomas
     loadImages:  false
-    loadPlugins: false
     logLevel:    "debug"
     verbose:     true
 
-casper.start()
+fantomas.start()
 
-# all article titles are stored in <h3>
-casper.fetchTexts 'http://www.liberation.fr/', 'h3'
+for url of links
+    do (url) ->
+        fantomas.thenOpen url, ->
+            links[url] = @countLinks()
 
-# all article titles are stored in <h2 class="article">
-casper.fetchTexts 'http://www.lemonde.fr/', 'h2.article'
-
-casper.run -> @renderJSON articles
+fantomas.run ->
+    @renderJSON links
+    @exit()

-var Casper = require("casper").Casper;
-
-/**
- * Adds two new methods to the Casper prototype: fetchTexts and renderJSON.
- */
-Casper.extend({
-    /**
-     * Adds a new navigation step for casper; basically it will:
-     *
-     * 1. open an url,
-     * 2. on loaded, will fetch all contents retrieved through the provided
-     *    CSS3 selector and return them in a formatted object.
-     */
-    fetchTexts: function(selector) {
-        return this.evaluate(function(selector) {
-            var elements = document.querySelectorAll(selector);
-            return Array.prototype.map.call(elements, function(e) {
-                return e.innerText;
-            });
-        }, { selector: selector });
-    },
-
-    /**
-     * Echoes a JSON output of the fetched results and exits phantomjs.
-     */
-    renderJSON: function(what) {
-        return this.echo(JSON.stringify(what, null, '  ')).exit();
-    }
-});
-
-var casper = new Casper({
+var casper = require('casper').create({
     loadImages:  false,
-    loadPlugins: false,
     logLevel:   "debug",
     verbose:    true
 });
 
-var articles = [];
+var links = {
+    'http://edition.cnn.com/': 0,
+    'http://www.nytimes.com/': 0,
+    'http://www.bbc.co.uk/': 0,
+    'http://www.guardian.co.uk/': 0
+};
 
-casper.start('http://www.liberation.fr/', function() {
-    articles = this.fetchTexts('h3');
-});
+var fantomas = Object.create(casper);
 
-casper.thenOpen('http://www.lemonde.fr/', function() {
-    articles.concat(this.fetchTexts('h2.article'));
+fantomas.countLinks = function(selector) {
+    return this.evaluate(function() {
+        return __utils__.findAll('a[href]').length;
+    });
+};
+
+fantomas.renderJSON = function(what) {
+    return this.echo(JSON.stringify(what, null, '  '));
+};
+
+fantomas.start();
+
+Object.keys(links).forEach(function(url) {
+    fantomas.thenOpen(url, function() {
+        links[url] = this.countLinks();
+    });
 });
 
-casper.run(function(self) {
-    self.renderJSON(articles);
+fantomas.run(function() {
+    this.renderJSON(links).exit();
 });