From a90a5cba08fdf6c0ceb95101c275108a152a3aed Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 12 Jun 2024 07:35:37 +0200
Subject: Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 gfx/layers/apz/src/AsyncPanZoomController.cpp      |  10 ++
 gfx/layers/apz/src/FocusState.cpp                  |   1 +
 gfx/layers/apz/src/InputBlockState.h               |   4 +-
 gfx/layers/apz/src/InputQueue.cpp                  |  14 +-
 gfx/layers/apz/test/gtest/TestGestureDetector.cpp  | 100 ++++++++++++++
 .../mochitest/helper_doubletap_zoom_textarea.html  |   6 +
 .../mochitest/helper_scroll_over_subframe.html     | 146 +++++++++++++++++++++
 .../helper_scroll_over_subframe_child.html         |  29 ++++
 .../test/mochitest/test_group_double_tap_zoom.html |   2 +-
 .../test/mochitest/test_group_pointerevents.html   |   9 +-
 .../apz/test/mochitest/test_group_wheelevents.html |  11 ++
 11 files changed, 320 insertions(+), 12 deletions(-)
 create mode 100644 gfx/layers/apz/test/mochitest/helper_scroll_over_subframe.html
 create mode 100644 gfx/layers/apz/test/mochitest/helper_scroll_over_subframe_child.html

(limited to 'gfx/layers/apz')

diff --git a/gfx/layers/apz/src/AsyncPanZoomController.cpp b/gfx/layers/apz/src/AsyncPanZoomController.cpp
index a070340421..84b4a95b9e 100644
--- a/gfx/layers/apz/src/AsyncPanZoomController.cpp
+++ b/gfx/layers/apz/src/AsyncPanZoomController.cpp
@@ -1988,6 +1988,10 @@ ParentLayerPoint AsyncPanZoomController::GetScrollWheelDelta(
   // Apply user-set multipliers.
   delta.x *= aMultiplierX;
   delta.y *= aMultiplierY;
+  APZC_LOGV(
+      "user-multiplied delta is %s (deltaType %d, line size %s, page size %s)",
+      ToString(delta).c_str(), (int)aEvent.mDeltaType,
+      ToString(scrollAmount).c_str(), ToString(pageScrollSize).c_str());
 
   // For the conditions under which we allow system scroll overrides, see
   // WidgetWheelEvent::OverriddenDelta{X,Y}.
@@ -1999,6 +2003,7 @@ ParentLayerPoint AsyncPanZoomController::GetScrollWheelDelta(
       aEvent.mAllowToOverrideSystemScrollSpeed) {
     delta.x = WidgetWheelEvent::ComputeOverriddenDelta(delta.x, false);
     delta.y = WidgetWheelEvent::ComputeOverriddenDelta(delta.y, true);
+    APZC_LOGV("overridden delta is %s", ToString(delta).c_str());
   }
 
   // If this is a line scroll, and this event was part of a scroll series, then
@@ -2258,6 +2263,8 @@ bool AsyncPanZoomController::AllowOneTouchPinch() const {
 // Return whether or not the underlying layer can be scrolled on either axis.
 bool AsyncPanZoomController::CanScroll(const InputData& aEvent) const {
   ParentLayerPoint delta = GetDeltaForEvent(aEvent);
+  APZC_LOGV_DETAIL("CanScroll: event delta is %s", this,
+                   ToString(delta).c_str());
   if (!delta.x && !delta.y) {
     return false;
   }
@@ -2330,6 +2337,9 @@ bool AsyncPanZoomController::CanScrollWithWheel(
       disregardedDirection != Some(ScrollDirection::eVertical)) {
     return true;
   }
+  APZC_LOGV_FM(Metrics(),
+               "cannot scroll with wheel (disregarded direction is %s)",
+               ToString(disregardedDirection).c_str());
   return false;
 }
 
diff --git a/gfx/layers/apz/src/FocusState.cpp b/gfx/layers/apz/src/FocusState.cpp
index 0230676e7e..84bf0b4570 100644
--- a/gfx/layers/apz/src/FocusState.cpp
+++ b/gfx/layers/apz/src/FocusState.cpp
@@ -7,6 +7,7 @@
 #include "FocusState.h"
 
 #include "mozilla/Logging.h"
+#include "mozilla/IntegerPrintfMacros.h"
 #include "mozilla/layers/APZThreadUtils.h"
 
 static mozilla::LazyLogModule sApzFstLog("apz.focusstate");
diff --git a/gfx/layers/apz/src/InputBlockState.h b/gfx/layers/apz/src/InputBlockState.h
index d65b1cb57b..d27e7ead27 100644
--- a/gfx/layers/apz/src/InputBlockState.h
+++ b/gfx/layers/apz/src/InputBlockState.h
@@ -501,9 +501,9 @@ class TouchBlockState : public CancelableBlockState {
     mIsWaitingLongTapResult = false;
   }
 
-  void SetWaitingLongTapResult() {
+  void SetWaitingLongTapResult(bool aResult) {
     MOZ_ASSERT(!mForLongTap);
-    mIsWaitingLongTapResult = true;
+    mIsWaitingLongTapResult = aResult;
   }
   bool IsWaitingLongTapResult() const { return mIsWaitingLongTapResult; }
 
diff --git a/gfx/layers/apz/src/InputQueue.cpp b/gfx/layers/apz/src/InputQueue.cpp
index 8ad75a9794..78b70fddf4 100644
--- a/gfx/layers/apz/src/InputQueue.cpp
+++ b/gfx/layers/apz/src/InputQueue.cpp
@@ -204,8 +204,8 @@ APZEventResult InputQueue::ReceiveTouchInput(
     } else {
       // If all following conditions are met, we need to wait for a content
       // response (again);
-      //  1) this is the first event bailing out from in-slop state after a
-      //     long-tap event has been fired
+      //  1) this is the first touch-move event bailing out from in-slop state
+      //     after a long-tap event has been fired
       //  2) there's any APZ-aware event listeners
       //  3) the event block hasn't yet been prevented
       //
@@ -216,7 +216,7 @@ APZEventResult InputQueue::ReceiveTouchInput(
       //  until a long-tap event happens, then if the user started moving their
       // finger, we have to wait for a content response twice, one is for
       // `touchstart` and one is for `touchmove`.
-      if (wasInSlop &&
+      if (wasInSlop && aEvent.mType == MultiTouchInput::MULTITOUCH_MOVE &&
           (block->WasLongTapProcessed() || block->IsWaitingLongTapResult()) &&
           !block->IsTargetOriginallyConfirmed() && !block->ShouldDropEvents()) {
         INPQ_LOG(
@@ -637,6 +637,12 @@ uint64_t InputQueue::InjectNewTouchBlock(AsyncPanZoomController* aTarget) {
 TouchBlockState* InputQueue::StartNewTouchBlock(
     const RefPtr<AsyncPanZoomController>& aTarget,
     TargetConfirmationFlags aFlags) {
+  if (mPrevActiveTouchBlock && mActiveTouchBlock &&
+      mActiveTouchBlock->ForLongTap()) {
+    mPrevActiveTouchBlock->SetWaitingLongTapResult(false);
+    mPrevActiveTouchBlock = nullptr;
+  }
+
   TouchBlockState* newBlock =
       new TouchBlockState(aTarget, aFlags, mTouchCounter);
 
@@ -664,7 +670,7 @@ TouchBlockState* InputQueue::StartNewTouchBlockForLongTap(
   // touch block because if the long-tap event response prevents us from
   // scrolling we must stop processing any subsequent touch-move events in the
   // same block.
-  currentBlock->SetWaitingLongTapResult();
+  currentBlock->SetWaitingLongTapResult(true);
 
   // We need to keep the current block alive, it will be used once after this
   // new touch block for long-tap was processed.
diff --git a/gfx/layers/apz/test/gtest/TestGestureDetector.cpp b/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
index 8256667d6b..f5024e8208 100644
--- a/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
+++ b/gfx/layers/apz/test/gtest/TestGestureDetector.cpp
@@ -10,6 +10,7 @@
 #include "APZCBasicTester.h"
 #include "APZTestCommon.h"
 #include "InputUtils.h"
+#include "apz/src/InputBlockState.h"
 #include "mozilla/StaticPrefs_apz.h"
 
 // Note: There are additional tests that test gesture detection behaviour
@@ -553,6 +554,83 @@ class APZCLongPressTester : public APZCGestureDetectorTester {
 
     apzc->AssertStateIsReset();
   }
+
+  // Tests a scenario that after a long-press event happened the original touch
+  // block initiated by a touch-start event and the touch block initiated by a
+  // long-tap event have been discarded when a new touch-start event happens.
+  void DoLongPressDiscardTouchBlockTest(bool aWithTouchMove) {
+    // Set apz.content_response_timeout > ui.click_hold_context_menus.delay and
+    // apz.touch_start_tolerance explicitly to match Android preferences.
+    SCOPED_GFX_PREF_INT("apz.content_response_timeout", 60);
+    SCOPED_GFX_PREF_INT("ui.click_hold_context_menus.delay", 30);
+    SCOPED_GFX_PREF_FLOAT("apz.touch_start_tolerance", 0.06);
+
+    MockFunction<void(std::string checkPointName)> check;
+    {
+      InSequence s;
+      EXPECT_CALL(check, Call("pre long-tap dispatch"));
+      EXPECT_CALL(*mcc, HandleTap(TapType::eLongTap, LayoutDevicePoint(10, 10),
+                                  0, apzc->GetGuid(), _, _))
+          .Times(1);
+      EXPECT_CALL(check, Call("post long-tap dispatch"));
+
+      // If a touch-move happens while long-tap is happening, there's no
+      // eLongTapUp event.
+      if (!aWithTouchMove) {
+        EXPECT_CALL(*mcc,
+                    HandleTap(TapType::eLongTapUp, LayoutDevicePoint(10, 20), 0,
+                              apzc->GetGuid(), _, _))
+            .Times(1);
+      }
+      EXPECT_CALL(*mcc, HandleTap(TapType::eLongTap, LayoutDevicePoint(10, 10),
+                                  0, apzc->GetGuid(), _, _))
+          .Times(1);
+    }
+
+    // Keep touching for a while to trigger a long tap event.
+    uint64_t firstTouchBlockId =
+        TouchDown(apzc, ScreenIntPoint(10, 10), mcc->Time()).mInputBlockId;
+    TouchBlockState* firstTouchBlock =
+        tm->GetInputQueue()->GetCurrentTouchBlock();
+    EXPECT_NE(firstTouchBlock, nullptr);
+    EXPECT_EQ(tm->GetInputQueue()->GetBlockForId(firstTouchBlockId),
+              firstTouchBlock);
+
+    // Wait for a long tap.
+    check.Call("pre long-tap dispatch");
+    mcc->AdvanceByMillis(30);
+    check.Call("post long-tap dispatch");
+
+    // Now the current touch block is not the first touch block, it should be
+    // a new touch block for the long tap event.
+    TouchBlockState* secondTouchBlock =
+        tm->GetInputQueue()->GetCurrentTouchBlock();
+    EXPECT_NE(secondTouchBlock, firstTouchBlock);
+    EXPECT_TRUE(secondTouchBlock->ForLongTap());
+    uint64_t secondTouchBlockId = secondTouchBlock->GetBlockId();
+
+    if (aWithTouchMove) {
+      mcc->AdvanceByMillis(10);
+      TouchMove(apzc, ScreenIntPoint(10, 20), mcc->Time());
+    }
+
+    // Finish the first touch block.
+    mcc->AdvanceByMillis(10);
+    TouchUp(apzc, ScreenIntPoint(10, 20), mcc->Time());
+
+    // And start a new touch block.
+    mcc->AdvanceByMillis(10);
+    uint64_t newTouchBlockId =
+        TouchDown(apzc, ScreenIntPoint(10, 10), mcc->Time()).mInputBlockId;
+
+    mcc->AdvanceByMillis(10);
+    // Now the original touch block and the touch block for long-tap should have
+    // been discarded from the input queue.
+    EXPECT_EQ(tm->GetInputQueue()->GetBlockForId(firstTouchBlockId), nullptr);
+    EXPECT_EQ(tm->GetInputQueue()->GetBlockForId(secondTouchBlockId), nullptr);
+    EXPECT_EQ(tm->GetInputQueue()->GetBlockForId(newTouchBlockId),
+              tm->GetInputQueue()->GetCurrentBlock());
+  }
 };
 
 TEST_F(APZCLongPressTester, LongPress) {
@@ -563,6 +641,28 @@ TEST_F(APZCLongPressTester, LongPressPreventDefault) {
   DoLongPressPreventDefaultTest(kDefaultTouchBehavior);
 }
 
+TEST_F(APZCLongPressTester, LongPressDiscardBlock) {
+  DoLongPressDiscardTouchBlockTest(true /* with touch-move */);
+}
+
+// Similar to above LongPressDiscardBlock but APZ is waiting for responses from
+// the content.
+TEST_F(APZCLongPressTester, LongPressDiscardBlock2) {
+  MakeApzcWaitForMainThread();
+  DoLongPressDiscardTouchBlockTest(true /* with touch-move */);
+}
+
+// Similar to above LongPressDiscardBlock/LongPressDiscardBlock2 without
+// touch-move events.
+TEST_F(APZCLongPressTester, LongPressDiscardBlock3) {
+  DoLongPressDiscardTouchBlockTest(false /* without touch-move */);
+}
+
+TEST_F(APZCLongPressTester, LongPressDiscardBlock4) {
+  MakeApzcWaitForMainThread();
+  DoLongPressDiscardTouchBlockTest(false /* without touch-move */);
+}
+
 TEST_F(APZCGestureDetectorTester, DoubleTap) {
   MakeApzcWaitForMainThread();
   MakeApzcZoomable();
diff --git a/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_textarea.html b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_textarea.html
index 99616d9834..762e1cef69 100644
--- a/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_textarea.html
+++ b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_textarea.html
@@ -7,6 +7,12 @@
   <script src="apz_test_native_event_utils.js"></script>
   <script src="apz_test_utils.js"></script>
   <script src="/tests/SimpleTest/paint_listener.js"></script>
+  <style>
+    #target {
+      width: 100px;
+      height: 100px;
+    }
+  </style>
   <script>
 
 async function test() {
diff --git a/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe.html b/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe.html
new file mode 100644
index 0000000000..21efcbd9d6
--- /dev/null
+++ b/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe.html
@@ -0,0 +1,146 @@
+<!DOCTYPE html>
+<html>
+  <title>A scroll over an iframe should not terminate the wheel transaction</title>
+  <script type="application/javascript" src="apz_test_utils.js"></script>
+  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
+  <script src="/tests/SimpleTest/paint_listener.js"></script>
+<head>
+<style>
+body {
+  height: 250vh;
+  width: 100%;
+  margin: 0;
+  padding: 0;
+}
+
+#spacer {
+  height: 50px;
+  width: 100vw;
+  background: yellow;
+}
+
+#subframe {
+  width: 80vw;
+  height: 60vh;
+}
+</style>
+</head>
+<body>
+  <div id="spacer"></div>
+  <iframe id="subframe">
+  </iframe>
+</body>
+<script>
+const searchParams = new URLSearchParams(location.search);
+
+async function scrollWithPan() {
+  await NativePanHandler.promiseNativePanEvent(
+    document.scrollingElement,
+    50,
+    30,
+    0,
+    NativePanHandler.delta,
+    NativePanHandler.beginPhase,
+  );
+
+  await NativePanHandler.promiseNativePanEvent(
+    document.scrollingElement,
+    50,
+    30,
+    0,
+    NativePanHandler.delta,
+    NativePanHandler.updatePhase,
+  );
+
+  await NativePanHandler.promiseNativePanEvent(
+    document.scrollingElement,
+    50,
+    30,
+    0,
+    NativePanHandler.delta,
+    NativePanHandler.endPhase,
+  );
+}
+
+async function scrollWithWheel() {
+  await promiseMoveMouseAndScrollWheelOver(document.scrollingElement, 50, 30,
+                                           false, 100);
+}
+
+async function test() {
+  let iframeURL =
+       SimpleTest.getTestFileURL("helper_scroll_over_subframe_child.html");
+
+  switch (searchParams.get("oop")) {
+    case "true":
+      iframeURL = iframeURL.replace(window.location.origin, "https://example.com/");
+      break;
+    default:
+      break;
+  }
+
+  const iframeLoadPromise = promiseOneEvent(subframe, "load", null);
+  subframe.src = iframeURL;
+  await iframeLoadPromise;
+
+  await SpecialPowers.spawn(subframe, [], async () => {
+    await content.wrappedJSObject.waitUntilApzStable();
+    await SpecialPowers.contentTransformsReceived(content);
+  });
+
+  let childWindowReceivedWheelEvent = false;
+
+  window.addEventListener("message", e => {
+    if (e.data == "child-received-wheel-event") {
+      childWindowReceivedWheelEvent = true;
+    }
+  });
+
+  await SpecialPowers.spawn(subframe, [], () => {
+    let target = content.document.getElementById("target")
+    target.style.backgroundColor = "green";
+    content.getComputedStyle(target).backgroundColor;
+    target.addEventListener("wheel", () => {
+      target.style.backgroundColor = "red";
+      content.getComputedStyle(target).backgroundColor;
+    });
+    return new Promise(resolve => resolve());
+  });
+
+  await promiseFrame();
+
+  let transformEndPromise = promiseTransformEnd();
+
+  // Scroll over the iframe
+  switch (searchParams.get("scroll")) {
+    case "wheel":
+      await scrollWithWheel();
+      break;
+    case "pan":
+      await scrollWithPan();
+      break;
+    default:
+      ok(false, "Unsupported scroll value: " + searchParams.get("scroll"));
+      break;
+  }
+
+  await transformEndPromise;
+
+  // Wait an extra frame to ensure any message from the child has
+  // extra time to be sent to the parent.
+  await promiseFrame();
+
+  let res = await SpecialPowers.spawn(subframe, [], () => {
+    let target = content.document.getElementById("target")
+    return target.style.backgroundColor;
+  });
+
+  await promiseFrame();
+
+  // We should not have fired a wheel event to the element in the iframe
+  ok(!childWindowReceivedWheelEvent, "Child window should not receive wheel events");
+  is(res, "green", "OOP iframe does not halt user scroll of parent");
+}
+waitUntilApzStable().then(test).then(subtestDone, subtestFailed);
+</script>
+</html>
diff --git a/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe_child.html b/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe_child.html
new file mode 100644
index 0000000000..48f03a51d9
--- /dev/null
+++ b/gfx/layers/apz/test/mochitest/helper_scroll_over_subframe_child.html
@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="/tests/SimpleTest/paint_listener.js"></script>
+<script src="apz_test_utils.js"></script>
+<style>
+body {
+  margin: 0px;
+}
+
+#target {
+  width: 100%;
+  height: 100vh;
+  background: blue;
+  overflow: scroll;
+}
+</style>
+</head>
+<body>
+<div id="target">
+</div>
+</body>
+<script>
+  window.addEventListener("wheel", () => {
+    window.parent.postMessage("child-received-wheel-event", "*");
+  });
+</script>
+</html>
diff --git a/gfx/layers/apz/test/mochitest/test_group_double_tap_zoom.html b/gfx/layers/apz/test/mochitest/test_group_double_tap_zoom.html
index fe4a0784a9..c1e0351ccb 100644
--- a/gfx/layers/apz/test/mochitest/test_group_double_tap_zoom.html
+++ b/gfx/layers/apz/test/mochitest/test_group_double_tap_zoom.html
@@ -24,12 +24,12 @@ var logging_and_doubletap_prefs = [
 var subtests = [
   {"file": "helper_doubletap_zoom.html", "prefs": doubletap_prefs},
   {"file": "helper_doubletap_zoom_img.html", "prefs": doubletap_prefs},
-  {"file": "helper_doubletap_zoom_textarea.html", "prefs": doubletap_prefs},
   {"file": "helper_doubletap_zoom_horizontal_center.html", "prefs": doubletap_prefs},
   {"file": "helper_doubletap_zoom_bug1702464.html", "prefs": doubletap_prefs},
   {"file": "helper_doubletap_zoom_large_overflow.html", "prefs": doubletap_prefs},
   {"file": "helper_doubletap_zoom_fixedpos.html", "prefs": logging_and_doubletap_prefs},
   {"file": "helper_doubletap_zoom_tallwide.html", "prefs": doubletap_prefs},
+  {"file": "helper_doubletap_zoom_textarea.html", "prefs": doubletap_prefs},
 ];
 
 if (getPlatform() == "mac") {
diff --git a/gfx/layers/apz/test/mochitest/test_group_pointerevents.html b/gfx/layers/apz/test/mochitest/test_group_pointerevents.html
index 9ec03edd59..8bc0690bfc 100644
--- a/gfx/layers/apz/test/mochitest/test_group_pointerevents.html
+++ b/gfx/layers/apz/test/mochitest/test_group_pointerevents.html
@@ -24,14 +24,13 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=1285070
     {"file": "helper_bug1682170_pointercancel_on_touchaction_pinchzoom.html",
      "prefs": touch_action_prefs},
     {"file": "helper_bug1719855_pointercancel_on_touchmove_after_contextmenu_prevented.html"},
+    {"file": "helper_bug1285070.html"},
+    {"file": "helper_bug1299195.html", "prefs": [["dom.meta-viewport.enabled", isMac]]},
   ];
+
   if (getPlatform() != "android") {
     // Bug 1858610: these subtests are flaky on Android.
-    subtests.push(
-      {"file": "helper_bug1285070.html"},
-      {"file": "helper_bug1299195.html", "prefs": [["dom.meta-viewport.enabled", isMac]]},
-      {"file": "helper_bug1502010_unconsumed_pan.html"}
-    )
+    subtests.push({"file": "helper_bug1502010_unconsumed_pan.html"});
   }
 
   if (isApzEnabled()) {
diff --git a/gfx/layers/apz/test/mochitest/test_group_wheelevents.html b/gfx/layers/apz/test/mochitest/test_group_wheelevents.html
index 42ce15a247..93746b9f6f 100644
--- a/gfx/layers/apz/test/mochitest/test_group_wheelevents.html
+++ b/gfx/layers/apz/test/mochitest/test_group_wheelevents.html
@@ -20,6 +20,13 @@ var prefs = [
   ["mousewheel.transaction.timeout", 0],
 ];
 
+var wheel_transaction_prefs = [
+  ["dom.event.wheel-event-groups.enabled", true],
+  ["mousewheel.transaction.timeout", 10000],
+  ["apz.test.mac.synth_wheel_input", true],
+  ...getSmoothScrollPrefs("wheel"),
+];
+
 // For helper_scroll_over_scrollbar, we need to set a pref to force
 // layerization of the scrollbar track to reproduce the bug being fixed.
 // Otherwise, the bug only manifests with overlay scrollbars on macOS,
@@ -48,6 +55,10 @@ var subtests = [
     prefs: [["general.smoothScroll", false],
              ["apz.test.mac.synth_wheel_input", true]]},
   {"file": "helper_scroll_anchoring_on_wheel.html", prefs: smoothness_prefs},
+  {"file": "helper_scroll_over_subframe.html?scroll=wheel", prefs: wheel_transaction_prefs},
+  {"file": "helper_scroll_over_subframe.html?oop=true&scroll=wheel", prefs: wheel_transaction_prefs},
+  {"file": "helper_scroll_over_subframe.html?scroll=pan", prefs: wheel_transaction_prefs},
+  {"file": "helper_scroll_over_subframe.html?oop=true&scroll=pan", prefs: wheel_transaction_prefs},
 ];
 
 subtests.push(...buildRelativeScrollSmoothnessVariants("wheel", ["scrollBy", "scrollTo", "scrollTop"]));
-- 
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