Backed out changesets 4cd69faa8bc0 and 54252e150439 (bug 976963) for B2G mochitest failures.

dom/events/EventStateManager.cpp

@@ -3848,13 +3848,9 @@ EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent,
 {
   NS_ASSERTION(aContent, "Mouse must be over something");
 
-  // If pointer capture is set, we should suppress pointerover/pointerenter events
-  // for all elements except element which have pointer capture.
-  bool dispatch = !aMouseEvent->retargetedByPointerCapture;
-
   OverOutElementsWrapper* wrapper = GetWrapperByEventID(aMouseEvent);
 
-  if (wrapper->mLastOverElement == aContent && dispatch)
+  if (wrapper->mLastOverElement == aContent)
     return;
 
   // Before firing mouseover, check for recursion
@@ -3865,9 +3861,12 @@ EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent,
   // document's ESM state to indicate that the mouse is over the
   // content associated with our subdocument.
   EnsureDocument(mPresContext);
-  if (nsIDocument *parentDoc = mDocument->GetParentDocument()) {
-    if (nsIContent *docContent = parentDoc->FindContentForSubDocument(mDocument)) {
-      if (nsIPresShell *parentShell = parentDoc->GetShell()) {
+  nsIDocument *parentDoc = mDocument->GetParentDocument();
+  if (parentDoc) {
+    nsIContent *docContent = parentDoc->FindContentForSubDocument(mDocument);
+    if (docContent) {
+      nsIPresShell *parentShell = parentDoc->GetShell();
+      if (parentShell) {
         EventStateManager* parentESM =
           parentShell->GetPresContext()->EventStateManager();
         parentESM->NotifyMouseOver(aMouseEvent, docContent);
@@ -3876,7 +3875,7 @@ EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent,
   }
   // Firing the DOM event in the parent document could cause all kinds
   // of havoc.  Reverify and take care.
-  if (wrapper->mLastOverElement == aContent && dispatch)
+  if (wrapper->mLastOverElement == aContent)
     return;
 
   // Remember mLastOverElement as the related content for the
@@ -3884,12 +3883,10 @@ EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent,
   nsCOMPtr<nsIContent> lastOverElement = wrapper->mLastOverElement;
 
   bool isPointer = aMouseEvent->eventStructType == NS_POINTER_EVENT;
-  
-  Maybe<EnterLeaveDispatcher> enterDispatcher;
-  if (dispatch) {
-    enterDispatcher.construct(this, aContent, lastOverElement, aMouseEvent,
-                              isPointer ? NS_POINTER_ENTER : NS_MOUSEENTER);
-  }
+  EnterLeaveDispatcher enterDispatcher(this, aContent, lastOverElement,
+                                       aMouseEvent,
+                                       isPointer ? NS_POINTER_ENTER :
+                                                   NS_MOUSEENTER);
 
   NotifyMouseOut(aMouseEvent, aContent);
 
@@ -3901,17 +3898,13 @@ EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent,
     SetContentState(aContent, NS_EVENT_STATE_HOVER);
   }
 
-  if (dispatch) {
-    // Fire mouseover
-    wrapper->mLastOverFrame = 
-      DispatchMouseOrPointerEvent(aMouseEvent,
-                                  isPointer ? NS_POINTER_OVER : NS_MOUSE_ENTER_SYNTH,
-                                  aContent, lastOverElement);
-    wrapper->mLastOverElement = aContent;
-  } else {
-    wrapper->mLastOverFrame = nullptr;
-    wrapper->mLastOverElement = nullptr;
-  }
+  // Fire mouseover
+  wrapper->mLastOverFrame =
+    DispatchMouseOrPointerEvent(aMouseEvent,
+                                isPointer ? NS_POINTER_OVER :
+                                            NS_MOUSE_ENTER_SYNTH,
+                                aContent, lastOverElement);
+  wrapper->mLastOverElement = aContent;
 
   // Turn recursion protection back off
   wrapper->mFirstOverEventElement = nullptr;

layout/base/nsPresShell.cpp

@@ -7171,9 +7171,6 @@ PresShell::HandleEvent(nsIFrame* aFrame,
 
         if (pointerCapturingContent) {
           if (nsIFrame* capturingFrame = pointerCapturingContent->GetPrimaryFrame()) {
-            // If pointer capture is set, we should suppress pointerover/pointerenter events
-            // for all elements except element which have pointer capture. (Code in EventStateManager)
-            pointerEvent->retargetedByPointerCapture = (frame != capturingFrame);
             frame = capturingFrame;
           }
 

layout/base/tests/bug976963_inner.html

@@ -1,243 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=976963
--->
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 976963</title>
-  <meta name="author" content="Maksim Lebedev" />
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-  <style>
-    div#listener {
-      background: yellow;
-      position: absolute;
-      top: -100px;
-    }
-    div#middler {
-      background: yellow;
-      margin: 10px;
-    }
-    div#target {
-      background: yellow;
-    }
-  </style>
-  <script type="application/javascript">
-    /** Test for Bug 976963 **/
-    var All_Pointer_Events = ["pointerover",        "pointerenter",
-                              "pointermove",
-                              "pointerdown",        "pointerup",
-                              "pointerout",         "pointerleave",
-                              "pointercancel",
-                              "gotpointercapture",  "lostpointercapture"];
-
-    function on_event(object, event, callback) {
-      object.addEventListener(event, callback, false);
-    }
-    function ok(check, msg) {
-      parent.ok(check, msg);
-    }
-    function is(a, b, msg) {
-      parent.is(a, b, msg);
-    }
-
-    var listener = undefined;
-    var middler = undefined;
-    var target = undefined;
-
-    var test_ListenerGotCapture = 0;
-    var test_ListenerUnwanted = 0;
-    var test_ListenerLostCapture = 0;
-    var test_ListenerAfterCapture = 0;
-    var test_MiddlerGotCapture = 0;
-    var test_MiddlerOver = 0;
-    var test_MiddlerLeave = 0;
-    var test_MiddlerUp = 0;
-    var test_MiddlerLostCapture = 0;
-    var test_TargetDown = 0;
-    var test_TargetUnwanted = 0;
-    var test_TargetUp = 0;
-
-    var captured_event = undefined;
-    var f_gotPointerCapture = false;
-    var f_lostPointerCapture = false;
-    var f_gotMiddlerPointerCapture = false;
-
-    function listenerEventHandler(event) {
-      logger("Listener: " + event.type + ". Captured_event: " + captured_event);
-      if(test_ListenerLostCapture)
-        test_ListenerAfterCapture++;
-      if (event.type == "gotpointercapture") {
-        f_gotPointerCapture = true;
-        test_ListenerGotCapture++;
-      }
-      else if (event.type == "lostpointercapture") {
-        f_lostPointerCapture = true;
-        f_gotPointerCapture = false;
-        test_ListenerLostCapture++;
-      }
-      else if (event.type == "pointermove") {
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Listener: equals pointerId for lostpointercapture event");
-        if (f_gotPointerCapture) {
-          // on first event received for capture, release capture
-          logger("Listener call release");
-          ok(!!listener, "Listener should be live!");
-          ok(typeof(listener.releasePointerCapture) == "function", "Listener should have a function releasePointerCapture");
-          listener.releasePointerCapture(event.pointerId);
-        }
-        else {
-          logger("Listener.ASSERT: " + event.type);
-          test_ListenerUnwanted++;
-          // if any other events are received after releaseCapture, then the test fails
-          ok(false, event.target.id + "-" + event.type + " should be handled by target element handler");
-        }
-      }
-      else {
-        test_ListenerUnwanted++;
-        logger("Listener.ASSERT: " + event.type);
-        ok(false, event.type + "should be never handled by listener");
-      }
-    }
-
-    function middlerEventHandler(event) {
-      logger("Middler: " + event.type + ". Captured_event: " + captured_event);
-      if (event.type == "gotpointercapture") {
-        test_MiddlerGotCapture++;
-        f_gotMiddlerPointerCapture = true;
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Middler: equals pointerId for gotpointercapture event");
-      }
-      else if (event.type == "pointerover") {
-        test_MiddlerOver++;
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Middler: equals pointerId for pointerover event");
-      }
-      else if (event.type == "pointerleave") {
-        test_MiddlerLeave++;
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Middler: equals pointerId for pointerleave event");
-        ok(!!listener, "Listener should be live!");
-        ok(typeof(listener.setPointerCapture) == "function", "Listener should have a function setPointerCapture");
-        listener.setPointerCapture(event.pointerId);
-      }
-      else if (event.type == "lostpointercapture") {
-        test_MiddlerLostCapture++;
-        f_gotMiddlerPointerCapture = false;
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Middler: equals pointerId for lostpointercapture event");
-      }
-      else if (event.type == "pointerup" ) {
-        test_MiddlerUp++;
-      }
-    }
-  
-    function targetEventHandler(event) {
-      logger("Target: " + event.type + ". Captured_event: " + captured_event);
-      if (f_gotPointerCapture || f_gotMiddlerPointerCapture) {
-        if (event.type != "pointerout" && event.type != "pointerleave") {
-          logger("Target.ASSERT: " + event.type + " " + event.pointerId);
-          test_TargetUnwanted++;
-          ok(false, "The Target element should not have received any events while capture is active. Event recieved:" + event.type + ".  ");
-        }
-      }
-      if (event.type == "pointerdown") {
-        logger("Target.pointerdown 1: " + captured_event);
-        test_TargetDown++;
-        captured_event = event;
-        ok(!!middler, "Middler should be live!");
-        ok(typeof(middler.setPointerCapture) == "function", "Middler should have a function setPointerCapture");
-        middler.setPointerCapture(event.pointerId);
-        logger("Target.pointerdown 2: " + captured_event);
-      }
-      else if (event.type == "pointerup") {
-        ok(f_lostPointerCapture, "Target should have received pointerup");
-        ok(captured_event && captured_event.pointerId == event.pointerId, "Target: equals pointerId for lostpointercapture event");
-        test_TargetUp++; // complete test
-      }
-    }
-
-    function colorerHandler(event) {
-      if(event.type == "pointerover")
-        event.target.style.background = "red";
-      else if(event.type == "pointerout")
-        event.target.style.background = "yellow";
-    }
-    
-    function setEventHandlers() {
-      listener = document.getElementById("listener");
-      middler = document.getElementById("middler");
-      target = document.getElementById("target");
-      target.style["touchAction"] = "none";
-
-      // target and listener - handle all events
-      for (var i = 0; i < All_Pointer_Events.length; i++) {
-        on_event(target,    All_Pointer_Events[i], targetEventHandler);
-        on_event(listener,  All_Pointer_Events[i], listenerEventHandler);
-        on_event(middler,   All_Pointer_Events[i], middlerEventHandler);
-        on_event(target,    All_Pointer_Events[i], colorerHandler);
-        on_event(middler,   All_Pointer_Events[i], colorerHandler);
-      }
-    }
-
-    function prepareTest() {
-      SimpleTest.waitForExplicitFinish();
-      SpecialPowers.pushPrefEnv({
-        "set": [
-          ["dom.w3c_pointer_events.enabled", true]
-        ]
-      }, executeTest);
-    }    
-    
-    function executeTest()
-    {
-      logger("executeTest");
-      setEventHandlers();
-      document.body.offsetLeft;
-      var rect = target.getBoundingClientRect();
-      synthesizePointer(target,  rect.width/2, rect.height/2, {type: "pointermove"});
-      synthesizePointer(target,  rect.width/2, rect.height/2, {type: "pointerdown"});
-      synthesizePointer(target,  rect.width/3, rect.height/3, {type: "pointermove"});
-      synthesizePointer(middler, rect.width/2, rect.height/2, {type: "pointermove"});
-      synthesizePointer(target,  rect.width/2, rect.height/2, {type: "pointermove"});
-      synthesizePointer(middler, rect.width/2, rect.height/2, {type: "pointermove"});
-      synthesizePointer(target,  rect.width/2, rect.height/2, {type: "pointermove"});
-      synthesizePointer(target,  rect.width/2, rect.height/2, {type: "pointerup"});
-      finishTest();
-    }
-
-    function finishTest() {
-      setTimeout(function() {
-        is(test_ListenerGotCapture, 1, "Listener should receive gotpointercapture event");
-        is(test_ListenerUnwanted, 0, "Listener should not receive any unwanted events");
-        is(test_ListenerLostCapture, 1, "Listener should receive lostpointercapture event");
-        is(test_ListenerAfterCapture, 0, "Listener should not receive any events after release pointer capture");
-        is(test_MiddlerGotCapture, 1, "Middler should receive gotpointercapture event");
-        is(test_MiddlerOver, 1, "Middler should receive pointerover event");
-        is(test_MiddlerLeave, 1, "Middler should receive pointerleave event");
-        is(test_MiddlerUp, 0, "Middler should not receive pointerup event");
-        is(test_MiddlerLostCapture, 1, "Middler should receive lostpointercapture event");
-        is(test_TargetDown, 1, "Target should receive pointerdown event");
-        is(test_TargetUnwanted, 0, "Target should not receive any event while pointer capture is active");
-        is(test_TargetUp, 1, "Target should receive pointerup event");
-        logger("finishTest");
-        parent.finishTest();
-      }, 1000);
-    }
-
-    function logger(message) {
-      console.log(message);
-      var log = document.getElementById('log');
-      log.innerHTML = message + "<br>" + log.innerHTML;
-    }
-  </script>
-</head>
-<body onload="prepareTest()">
-  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=976963">Mozilla Bug 976963</a>
-  <p id="display"></p>
-  <div id="content" style="display: none">
-  </div>
-  <div id="listener">div id=listener</div>
-  <div id="middler">div id=middler</div>
-  <div id="target">div id=target</div>
-  <pre id="log">
-  </pre>
-</body>
-</html>

layout/base/tests/mochitest.ini

@@ -209,8 +209,6 @@ skip-if = (buildapp == 'b2g' && toolkit != 'gonk') #Bug 931116, b2g desktop spec
 support-files = bug851445_helper.html
 [test_bug970964.html]
 support-files = bug970964_inner.html
-[test_bug976963.html]
-support-files = bug976963_inner.html
 [test_emulateMedium.html]
 [test_getClientRects_emptytext.html]
 [test_bug858459.html]

layout/base/tests/test_bug976963.html

@@ -1,33 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=976963
--->
-  <head>
-    <meta charset="utf-8">
-    <meta name="author" content="Maksim Lebedev" />
-    <title>Test for Bug 976963</title>
-    <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-    <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-    <script type="text/javascript">
-      function prepareTest() {
-        SimpleTest.waitForExplicitFinish();
-        SpecialPowers.pushPrefEnv({
-          "set": [
-            ["dom.w3c_pointer_events.enabled", true]
-          ]
-        }, startTest);
-      }
-      function startTest() {
-        var iframe = document.getElementById("testFrame");
-        iframe.src = "bug976963_inner.html";
-      }
-      function finishTest() {
-        SimpleTest.finish();
-      }
-    </script>
-  </head>
-  <body onload="prepareTest()">
-    <iframe id="testFrame" height="700" width="700"></iframe>
-  </body>
-</html>

widget/MouseEvents.h

@@ -47,10 +47,8 @@ public:
   uint32_t pointerId;
   uint32_t tiltX;
   uint32_t tiltY;
-  bool retargetedByPointerCapture;
 
-  WidgetPointerHelper() : convertToPointer(true), pointerId(0), tiltX(0), tiltY(0),
-                          retargetedByPointerCapture(false) {}
+  WidgetPointerHelper() : convertToPointer(true), pointerId(0), tiltX(0), tiltY(0) {}
 
   void AssignPointerHelperData(const WidgetPointerHelper& aEvent)
   {
@@ -58,7 +56,6 @@ public:
     pointerId = aEvent.pointerId;
     tiltX = aEvent.tiltX;
     tiltY = aEvent.tiltY;
-    retargetedByPointerCapture = aEvent.retargetedByPointerCapture;
   }
 };