Add tests also for blur event (bug 238987)

content/events/test/test_bug238987.html

@@ -23,10 +23,14 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=238987
   var shouldStop = false;
   var modifier = 0;
   var expectedResult = "i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12";
-  var forwardArray = expectedResult.split(",");
-  var backwardArray = expectedResult.split(",");
-  // Adding 3 for "begin", "end", "begin" and one for the <a> in the Mochitest template.
-  var expectedWindowFocusCount = forwardArray.length + backwardArray.length + 4;
+  var forwardFocusArray = expectedResult.split(",");
+  var backwardFocusArray = expectedResult.split(",");
+  var forwardBlurArray = expectedResult.split(",");
+  var backwardBlurArray = expectedResult.split(",");
+  // Adding 3 for "begin", "end", "begin" and one for the <a> in the Mochitest template,
+  var expectedWindowFocusCount = forwardFocusArray.length + backwardFocusArray.length + 4;
+  // but the last blur event goes to i1, not "begin".
+  var expectedWindowBlurCount = forwardFocusArray.length + backwardFocusArray.length + 3;
 
   // accessibility.tabfocus must be set to value 7 before running test also
   // on a mac.
@@ -54,13 +58,15 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=238987
     } else if (e.target.id == "end") {
       modifier = Components.interfaces.nsIDOMNSEvent.SHIFT_MASK;
     } else if (modifier) {
-      var expected = backwardArray.pop();
+      var expected = backwardFocusArray.pop();
       ok(expected == e.target.id,
-         "Backward tabbing, expected [" + expected + "], got [" + e.target.id + "]");
+         "(focus) Backward tabbing, expected [" +
+         expected + "], got [" + e.target.id + "]");
     } else {
-      var expected = forwardArray.shift();
+      var expected = forwardFocusArray.shift();
       ok(expected == e.target.id,
-         "Forward tabbing, expected [" + expected + "], got [" + e.target.id + "]");
+         "(focus) Forward tabbing, expected [" +
+         expected + "], got [" + e.target.id + "]");
     }
   }
 
@@ -71,7 +77,33 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=238987
       s = s + ", id=\"" + e.target.id + "\"";
     }
     ok(e.eventPhase == Components.interfaces.nsIDOMEvent.CAPTURING_PHASE,
-       "|window| should not have got focus, " + s + "\n");
+       "|window| should not have got a focus event, " + s);
+  }
+
+  function handleBlur(e) {
+    if (e.target.id == "begin" || e.target.id == "end") {
+      return;
+    } else if (modifier) {
+      var expected = backwardBlurArray.pop();
+      ok(expected == e.target.id,
+         "(blur) backward tabbing, expected [" +
+         expected + "], got [" + e.target.id + "]");
+    } else {
+      var expected = forwardBlurArray.shift();
+      ok(expected == e.target.id,
+         "(blur) forward tabbing, expected [" +
+         expected + "], got [" + e.target.id + "]");
+    }
+  }
+
+  function handleWindowBlur(e) {
+    --expectedWindowBlurCount;
+    var s = "target " + e.target;
+    if ("id" in e.target) {
+      s = s + ", id=\"" + e.target.id + "\"";
+    }
+    ok(e.eventPhase == Components.interfaces.nsIDOMEvent.CAPTURING_PHASE,
+       "|window| should not have got a blur event, " + s);
   }
 
   function tab() {
@@ -84,12 +116,25 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=238987
     utils.sendKeyEvent("keypress", key, 0, modifier);
     utils.sendKeyEvent("keyup", key, 0, modifier);
     if (shouldStop) {
-      ok(forwardArray.length == 0,
-         "Not all forward tabbing tests were run, " + forwardArray.toString());
-      ok(backwardArray.length == 0,
-         "Not all forward tabbing tests were run, " + backwardArray.toString());
+      // Did focus handling succeed
+      ok(forwardFocusArray.length == 0,
+         "Not all forward tabbing focus tests were run, " +
+         forwardFocusArray.toString());
+      ok(backwardFocusArray.length == 0,
+         "Not all backward tabbing focus tests were run, " +
+         backwardFocusArray.toString());
       ok(expectedWindowFocusCount == 0,
-         "|window| didn't get right amount focus events")
+         "|window| didn't get the right amount of focus events");
+
+       // and blur.
+      ok(forwardBlurArray.length == 0,
+         "Not all forward tabbing blur tests were run, " +
+         forwardBlurArray.toString());
+      ok(backwardBlurArray.length == 0,
+         "Not all backward tabbing blur tests were run, " +
+         backwardBlurArray.toString());
+      ok(expectedWindowBlurCount == 0,
+         "|window| didn't get the right amount of blur events");
       setOrRestoreTabFocus(0);
       SimpleTest.finish();
     } else {
@@ -101,17 +146,20 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=238987
     window.focus();
     window.addEventListener("focus", handleWindowFocus, true);
     window.addEventListener("focus", handleWindowFocus, false);
+    window.addEventListener("blur", handleWindowBlur, true);
+    window.addEventListener("blur", handleWindowBlur, false);
     var elements = document.getElementsByTagName("*");
     for (var i = 0; i < elements.length; ++i) {
       if (elements[i].hasAttribute("id")) {
         elements[i].addEventListener("focus", handleFocus, false);
+        elements[i].addEventListener("blur", handleBlur, false);
       }
     }
     tab();
   }
 
   function doTest() {
-    setOrRestoreTabFocus(7)
+    setOrRestoreTabFocus(7);
     setTimeout(start, 100);
   }