Casper.mouseEvent() now triggers an error on failure

@@ -49,6 +49,8 @@ The whole [CapserJS test suite](https://github.com/n1k0/casperjs/tree/master/tes
 
 Native mouse events from PhantomJS bring a far more accurate behavior.
 
+Also, `Casper.mouseEvent()` will now directly trigger an error on failure instead of just logging an `error` event.
+
 ### Bugfixes & enhancements
 
 - fixed [#300](https://github.com/n1k0/casperjs/issues/300) - Ensure that `findOne()` and `findAll()` observe the scope for XPath expressions, not just when passed CSS selectors

@@ -1113,9 +1113,9 @@ Casper.prototype.log = function log(message, level, space) {
 Casper.prototype.mouseEvent = function mouseEvent(type, selector) {
     "use strict";
     this.checkStarted();
-    this.log("Mouse event '" + type + "' on selector: " + selector, "debug");
+    this.log(f("Mouse event '%s' on selector: %s", type, selector), "debug");
     if (!this.exists(selector)) {
-        throw new CasperError(f("Cannot dispatch %s event on nonexistent selector: %s", type, selector));
+        throw new CasperError(f("Cannot dispatch '%s' event on nonexistent selector: %s", type, selector));
     }
     // PhantomJS doesn't provide native events for mouseover & mouseout
     if (type === "mouseover" || type === "mouseout") {
@@ -1123,12 +1123,7 @@ Casper.prototype.mouseEvent = function mouseEvent(type, selector) {
             return window.__utils__.mouseEvent(type, selector);
         }, type, selector);
     }
-    try {
-        this.mouse.processEvent(type, selector);
-    } catch (e) {
-        this.log(f("Couldn't emulate '%s' event on %s: %s", type, selector, e), "error");
-        return false;
-    }
+    this.mouse.processEvent(type, selector);
     return true;
 };
 

@@ -72,8 +72,7 @@ var Mouse = function Mouse(casper) {
                 throw new CasperError('Mouse.processEvent(): Too few arguments');
             case 1:
                 // selector
-                var selector = args[0];
-                casper.page.sendEvent.apply(casper.page, [type].concat(computeCenter(selector)));
+                casper.page.sendEvent.apply(casper.page, [type].concat(computeCenter(args[0])));
                 break;
             case 2:
                 // coordinates