From 13f505539c5c0deff72cc1c007eaa9be1979d294 Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Fri, 13 Nov 2020 13:33:08 +0000
Subject: Issue #1682 - Remove vibrator DOM interface and support code.

Resolves #1682
---
 dom/base/Navigator.cpp                         | 193 +------------------------
 dom/base/Navigator.h                           |   3 -
 dom/tests/mochitest/general/mochitest.ini      |   1 -
 dom/tests/mochitest/general/test_vibrator.html |  93 ------------
 dom/webidl/Navigator.webidl                    |  25 +---
 5 files changed, 4 insertions(+), 311 deletions(-)
 delete mode 100644 dom/tests/mochitest/general/test_vibrator.html

(limited to 'dom')

diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
index 26fb16e4c..c0580c359 100644
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -97,11 +97,6 @@
 namespace mozilla {
 namespace dom {
 
-static bool sVibratorEnabled   = false;
-static uint32_t sMaxVibrateMS  = 0;
-static uint32_t sMaxVibrateListLen = 0;
-static const char* kVibrationPermissionType = "vibration";
-
 static void
 AddPermission(nsIPrincipal* aPrincipal, const char* aType, uint32_t aPermission,
               uint32_t aExpireType, int64_t aExpireTime)
@@ -152,12 +147,7 @@ GetPermission(nsIPrincipal* aPrincipal, const char* aType)
 void
 Navigator::Init()
 {
-  Preferences::AddBoolVarCache(&sVibratorEnabled,
-                               "dom.vibrator.enabled", true);
-  Preferences::AddUintVarCache(&sMaxVibrateMS,
-                               "dom.vibrator.max_vibrate_ms", 10000);
-  Preferences::AddUintVarCache(&sMaxVibrateListLen,
-                               "dom.vibrator.max_vibrate_list_len", 128);
+  // Add any Preferences::Add*VarCache(&sPref, "pref", default) here if needed.
 }
 
 Navigator::Navigator(nsPIDOMWindowInner* aWindow)
@@ -705,82 +695,6 @@ Navigator::RefreshMIMEArray()
   }
 }
 
-namespace {
-
-class VibrateWindowListener : public nsIDOMEventListener
-{
-public:
-  VibrateWindowListener(nsPIDOMWindowInner* aWindow, nsIDocument* aDocument)
-  {
-    mWindow = do_GetWeakReference(aWindow);
-    mDocument = do_GetWeakReference(aDocument);
-
-    NS_NAMED_LITERAL_STRING(visibilitychange, "visibilitychange");
-    aDocument->AddSystemEventListener(visibilitychange,
-                                      this, /* listener */
-                                      true, /* use capture */
-                                      false /* wants untrusted */);
-  }
-
-  void RemoveListener();
-
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIDOMEVENTLISTENER
-
-private:
-  virtual ~VibrateWindowListener()
-  {
-  }
-
-  nsWeakPtr mWindow;
-  nsWeakPtr mDocument;
-};
-
-NS_IMPL_ISUPPORTS(VibrateWindowListener, nsIDOMEventListener)
-
-StaticRefPtr<VibrateWindowListener> gVibrateWindowListener;
-
-static bool
-MayVibrate(nsIDocument* doc) {
-  // Hidden documents cannot start or stop a vibration.
-  return (doc && !doc->Hidden());
-}
-
-NS_IMETHODIMP
-VibrateWindowListener::HandleEvent(nsIDOMEvent* aEvent)
-{
-  nsCOMPtr<nsIDocument> doc =
-    do_QueryInterface(aEvent->InternalDOMEvent()->GetTarget());
-
-  if (!MayVibrate(doc)) {
-    // It's important that we call CancelVibrate(), not Vibrate() with an
-    // empty list, because Vibrate() will fail if we're no longer focused, but
-    // CancelVibrate() will succeed, so long as nobody else has started a new
-    // vibration pattern.
-    nsCOMPtr<nsPIDOMWindowInner> window = do_QueryReferent(mWindow);
-    hal::CancelVibrate(window);
-    RemoveListener();
-    gVibrateWindowListener = nullptr;
-    // Careful: The line above might have deleted |this|!
-  }
-
-  return NS_OK;
-}
-
-void
-VibrateWindowListener::RemoveListener()
-{
-  nsCOMPtr<EventTarget> target = do_QueryReferent(mDocument);
-  if (!target) {
-    return;
-  }
-  NS_NAMED_LITERAL_STRING(visibilitychange, "visibilitychange");
-  target->RemoveSystemEventListener(visibilitychange, this,
-                                    true /* use capture */);
-}
-
-} // namespace
-
 void
 Navigator::AddIdleObserver(MozIdleObserver& aIdleObserver, ErrorResult& aRv)
 {
@@ -809,111 +723,6 @@ Navigator::RemoveIdleObserver(MozIdleObserver& aIdleObserver, ErrorResult& aRv)
   }
 }
 
-void
-Navigator::SetVibrationPermission(bool aPermitted, bool aPersistent)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  nsTArray<uint32_t> pattern;
-  pattern.SwapElements(mRequestedVibrationPattern);
-
-  if (!mWindow) {
-    return;
-  }
-
-  nsCOMPtr<nsIDocument> doc = mWindow->GetExtantDoc();
-
-  if (!MayVibrate(doc)) {
-    return;
-  }
-
-  if (aPermitted) {
-    // Add a listener to cancel the vibration if the document becomes hidden,
-    // and remove the old visibility listener, if there was one.
-    if (!gVibrateWindowListener) {
-      // If gVibrateWindowListener is null, this is the first time we've vibrated,
-      // and we need to register a listener to clear gVibrateWindowListener on
-      // shutdown.
-      ClearOnShutdown(&gVibrateWindowListener);
-    } else {
-      gVibrateWindowListener->RemoveListener();
-    }
-    gVibrateWindowListener = new VibrateWindowListener(mWindow, doc);
-    hal::Vibrate(pattern, mWindow);
-  }
-
-  if (aPersistent) {
-    AddPermission(doc->NodePrincipal(), kVibrationPermissionType,
-                  aPermitted ? nsIPermissionManager::ALLOW_ACTION :
-                               nsIPermissionManager::DENY_ACTION,
-                  nsIPermissionManager::EXPIRE_SESSION, 0);
-  }
-}
-
-bool
-Navigator::Vibrate(uint32_t aDuration)
-{
-  AutoTArray<uint32_t, 1> pattern;
-  pattern.AppendElement(aDuration);
-  return Vibrate(pattern);
-}
-
-bool
-Navigator::Vibrate(const nsTArray<uint32_t>& aPattern)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-
-  if (!mWindow) {
-    return false;
-  }
-
-  nsCOMPtr<nsIDocument> doc = mWindow->GetExtantDoc();
-
-  if (!MayVibrate(doc)) {
-    return false;
-  }
-
-  nsTArray<uint32_t> pattern(aPattern);
-
-  if (pattern.Length() > sMaxVibrateListLen) {
-    pattern.SetLength(sMaxVibrateListLen);
-  }
-
-  for (size_t i = 0; i < pattern.Length(); ++i) {
-    pattern[i] = std::min(sMaxVibrateMS, pattern[i]);
-  }
-
-  // The spec says we check sVibratorEnabled after we've done the sanity
-  // checking on the pattern.
-  if (!sVibratorEnabled) {
-    return true;
-  }
-
-  mRequestedVibrationPattern.SwapElements(pattern);
-  uint32_t permission = GetPermission(mWindow, kVibrationPermissionType);
-
-  if (permission == nsIPermissionManager::ALLOW_ACTION ||
-      mRequestedVibrationPattern.IsEmpty() ||
-      (mRequestedVibrationPattern.Length() == 1 &&
-       mRequestedVibrationPattern[0] == 0)) {
-    // Always allow cancelling vibration and respect session permissions.
-    SetVibrationPermission(true /* permitted */, false /* persistent */);
-    return true;
-  }
-
-  nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
-  if (!obs || permission == nsIPermissionManager::DENY_ACTION) {
-    // Abort without observer service or on denied session permission.
-    SetVibrationPermission(false /* permitted */, false /* persistent */);
-    return true;
-  }
-
-  // Request user permission.
-  obs->NotifyObservers(ToSupports(this), "Vibration:Request", nullptr);
-
-  return true;
-}
-
 //*****************************************************************************
 //  Pointer Events interface
 //*****************************************************************************
diff --git a/dom/base/Navigator.h b/dom/base/Navigator.h
index 1e5575c05..df99844ca 100644
--- a/dom/base/Navigator.h
+++ b/dom/base/Navigator.h
@@ -149,9 +149,6 @@ public:
   // NavigatorBinding::ClearCachedUserAgentValue(this);
   void ClearUserAgentCache();
 
-  bool Vibrate(uint32_t aDuration);
-  bool Vibrate(const nsTArray<uint32_t>& aDuration);
-  void SetVibrationPermission(bool aPermitted, bool aPersistent);
   uint32_t MaxTouchPoints();
   void GetAppCodeName(nsString& aAppCodeName, ErrorResult& aRv)
   {
diff --git a/dom/tests/mochitest/general/mochitest.ini b/dom/tests/mochitest/general/mochitest.ini
index 9f2fad785..67c35f01a 100755
--- a/dom/tests/mochitest/general/mochitest.ini
+++ b/dom/tests/mochitest/general/mochitest.ini
@@ -122,7 +122,6 @@ run-if = e10s
 [test_storagePermissionsReject.html]
 [test_storagePermissionsRejectForeign.html]
 [test_stylesheetPI.html]
-[test_vibrator.html]
 [test_WebKitCSSMatrix.html]
 [test_windowedhistoryframes.html]
 [test_windowProperties.html]
diff --git a/dom/tests/mochitest/general/test_vibrator.html b/dom/tests/mochitest/general/test_vibrator.html
deleted file mode 100644
index 2874c783b..000000000
--- a/dom/tests/mochitest/general/test_vibrator.html
+++ /dev/null
@@ -1,93 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Test for Vibrator</title>
-  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-
-<!-- Although we can't test that the vibrator works properly, we can test that
-     navigator.vibrate throws an exception where appropriate. -->
-
-<script class="testbody" type="text/javascript;version=1.7">
-SimpleTest.waitForExplicitFinish();
-var result;
-function expectFailure(param) {
-  result = navigator.vibrate(param);
-  is(result, false, 'vibrate(' + param + ') should have failed.');
-}
-
-function expectSuccess(param) {
-  result = navigator.vibrate(param);
-  is(result, true, 'vibrate(' + param + ') must succeed.');
-}
-
-function tests(aEnabled) {
-  // Some edge cases that the bindings should handle for us.
-  expectSuccess(null);
-  expectSuccess(undefined);
-  // -1 will be converted to the highest unsigned long then clamped.
-  expectSuccess(-1);
-  expectSuccess('a');
-  // -1 will be converted to the highest unsigned long then clamped.
-  expectSuccess([100, -1]);
-  expectSuccess([100, 'a']);
-
-  var maxVibrateMs = SpecialPowers.getIntPref('dom.vibrator.max_vibrate_ms');
-  var maxVibrateListLen = SpecialPowers.getIntPref('dom.vibrator.max_vibrate_list_len');
-
-  // If we pass a vibration pattern with a value higher than max_vibrate_ms or a
-  // pattern longer than max_vibrate_list_len, the call should succeed but the
-  // pattern should be modified to match the restrictions.
-
-  // Values will be clamped to dom.vibrator.max_vibrate_ms.
-  expectSuccess(maxVibrateMs + 1);
-  expectSuccess([maxVibrateMs + 1]);
-
-  var arr = [];
-  for (var i = 0; i < maxVibrateListLen + 1; i++) {
-    arr[i] = 0;
-  }
-  // The array will be truncated to have a length equal to dom.vibrator.max_vibrate_list_len.
-  expectSuccess(arr);
-
-
-  expectSuccess(0);
-  expectSuccess([]);
-  expectSuccess('1000');
-  expectSuccess(1000);
-  expectSuccess(1000.1);
-  expectSuccess([0, 0, 0]);
-  expectSuccess(['1000', 1000]);
-  expectSuccess([1000, 1000]);
-  expectSuccess([1000, 1000.1]);
-
-  // The following loop shouldn't cause us to crash.  See bug 701716.
-  for (var i = 0; i < 10000; i++) {
-    navigator.vibrate([100, 100]);
-  }
-  ok(true, "Didn't crash after issuing a lot of vibrate() calls.");
-  if(!aEnabled)
-    SimpleTest.finish();
-}
-
-SpecialPowers.pushPermissions([
-    {type: 'vibration', allow: true, context: document}
-  ], function() {
-    // Test with the vibrator pref enabled.
-    SpecialPowers.pushPrefEnv({"set": [['dom.vibrator.enabled', true]]}, function() {
-      tests(true);
-      SpecialPowers.pushPrefEnv({"set": [['dom.vibrator.enabled', false]]}, tests(false));
-    });
-    // Everything should be the same when the vibrator is disabled -- in
-    // particular, a disabled vibrator shouldn't eat failures we'd otherwise
-    // observe.
-  }
-);
-
-</script>
-</body>
-
-</html>
diff --git a/dom/webidl/Navigator.webidl b/dom/webidl/Navigator.webidl
index f34429de7..43d53cbac 100644
--- a/dom/webidl/Navigator.webidl
+++ b/dom/webidl/Navigator.webidl
@@ -13,9 +13,9 @@
  * http://www.w3.org/TR/beacon/#sec-beacon-method
  * https://html.spec.whatwg.org/#navigatorconcurrenthardware
  *
- * © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and
- * Opera Software ASA. You are granted a license to use, reproduce
- * and create derivative works of this document.
+ * © Copyright 2004-2020 Apple Computer, Inc., Mozilla Foundation,
+ * Opera Software ASA and Moonchild Productions. You are granted a license to use,
+ * reproduce and create derivative works of this document.
  */
 
 // http://www.whatwg.org/specs/web-apps/current-work/#the-navigator-object
@@ -124,14 +124,6 @@ interface NavigatorGeolocation {
 };
 Navigator implements NavigatorGeolocation;
 
-// http://www.w3.org/TR/vibration/#vibration-interface
-partial interface Navigator {
-    // We don't support sequences in unions yet
-    //boolean vibrate ((unsigned long or sequence<unsigned long>) pattern);
-    boolean vibrate(unsigned long duration);
-    boolean vibrate(sequence<unsigned long> pattern);
-};
-
 // http://www.w3.org/TR/pointerevents/#extensions-to-the-navigator-interface
 partial interface Navigator {
     [Pref="dom.w3c_pointer_events.enabled"]
@@ -140,17 +132,6 @@ partial interface Navigator {
 
 // Mozilla-specific extensions
 
-// Chrome-only interface for Vibration API permission handling.
-partial interface Navigator {
-    /* Set permission state to device vibration.
-     * @param permitted permission state (true for allowing vibration)
-     * @param persistent make the permission session-persistent
-     */
-    [ChromeOnly]
-    void setVibrationPermission(boolean permitted,
-                                optional boolean persistent = true);
-};
-
 callback interface MozIdleObserver {
   // Time is in seconds and is read only when idle observers are added
   // and removed.
-- 
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