added Casper.mouseClick() method for native mouse click emulation using native events

@@ -178,17 +178,7 @@ Casper.prototype = {
      */
     captureSelector: function(targetFile, selector) {
         return this.capture(targetFile, this.evaluate(function(selector) {
-            try {
-                var clipRect = document.querySelector(selector).getBoundingClientRect();
-                return {
-                    top:    clipRect.top,
-                    left:   clipRect.left,
-                    width:  clipRect.width,
-                    height: clipRect.height
-                };
-            } catch (e) {
-                __utils__.log("Unable to fetch bounds for element " + selector, "warning");
-            }
+            return __utils__.getElementBounds();
         }, { selector: selector }));
     },
 
@@ -597,6 +587,25 @@ Casper.prototype = {
     },
 
     /**
+     * Emulates a click on an HTML element matching a given CSS3 selector,
+     * using the mouse pointer.
+     *
+     * @param  String   selector        A DOM CSS3 compatible selector
+     * @return Casper
+     */
+    mouseClick: function(selector) {
+        var bounds = this.evaluate(function(selector) {
+            return __utils__.getElementBounds(selector);
+        }, { selector: selector });
+        if (utils.isClipRect(bounds)) {
+            var x = bounds.left + Math.floor(bounds.width / 2);
+            var y = bounds.top  + Math.floor(bounds.height / 2);
+            this.page.sendEvent('click', x, y);
+        }
+        return this;
+    },
+
+    /**
      * Opens a page. Takes only one argument, the url to open (using the
      * callback argument would defeat the whole purpose of Casper
      * actually).

@@ -351,6 +351,27 @@
         };
 
         /**
+         * Retrieves bounding rect coordinates of the HTML element matching the
+         * provided CSS3 selector
+         *
+         * @param  String  selector
+         * @return Object or null
+         */
+        this.getElementBounds = function(selector) {
+            try {
+                var clipRect = document.querySelector(selector).getBoundingClientRect();
+                return {
+                    top:    clipRect.top,
+                    left:   clipRect.left,
+                    width:  clipRect.width,
+                    height: clipRect.height
+                };
+            } catch (e) {
+                this.log("Unable to fetch bounds for element " + selector, "warning");
+            }
+        };
+
+        /**
          * Logs a message. Will format the message a way CasperJS will be able
          * to log phantomjs side.
          *

@@ -85,6 +85,11 @@ function fillBlanks(text, pad) {
 }
 exports.fillBlanks = fillBlanks;
 
+function isArray(value) {
+    return isType(value, "array");
+}
+exports.isArray = isArray;
+
 /**
  * Checks if passed argument is an instance of Capser object.
  *
@@ -96,6 +101,22 @@ function isCasperObject(value) {
 }
 exports.isCasperObject = isCasperObject;
 
+function isClipRect(value) {
+    return isType(value, "cliprect") || (
+        isType(value, "object") &&
+        isType(value.top, "number") &&
+        isType(value.left, "number") &&
+        isType(value.width, "number") &&
+        isType(value.height, "number")
+    );
+}
+exports.isClipRect = isClipRect;
+
+function isFunction(value) {
+    return isType(value, "function");
+}
+exports.isFunction = isFunction;
+
 /**
  * Checks if a file is apparently javascript compatible (.js or .coffee).
  *
@@ -108,6 +129,11 @@ function isJsFile(file) {
 }
 exports.isJsFile = isJsFile;
 
+function isObject(value) {
+    return isType(value, "object");
+}
+exports.isObject = isObject;
+
 /**
  * Shorthands for checking if a value is of the given type. Can check for
  * arrays.

@@ -2,7 +2,6 @@
     var utils = require('utils');
 
     t.comment('fileExt()');
-
     (function() {
         var testCases = {
             'foo.ext':    'ext',
@@ -19,7 +18,6 @@
     })();
 
     t.comment('fillBlanks()');
-
     (function() {
         testCases = {
             'foo':         'foo       ',
@@ -32,8 +30,22 @@
         }
     })();
 
-    t.comment('isJsFile()');
+    t.comment('isClipRect()');
+    (function() {
+        testCases = [
+            [{},                                              false],
+            [{top: 2},                                        false],
+            [{top: 2, left: 2, width: 2, height: 2},          true],
+            [{top: 2, left: 2, height: 2, width: 2},          true],
+            [{top: 2, left: 2, width: 2, height: new Date()}, false]
+        ];
 
+        testCases.forEach(function(testCase) {
+            t.assertEquals(utils.isClipRect(testCase[0]), testCase[1], 'isClipRect() checks for a ClipRect');
+        });
+    })();
+
+    t.comment('isJsFile()');
     (function() {
         testCases = {
             '':             false,
@@ -49,7 +61,6 @@
     })();
 
     t.comment('mergeObjects()');
-
     (function() {
         testCases = [
             {