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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/ipc/CoalescedWheelData.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/ipc/CoalescedWheelData.cpp')
-rw-r--r--dom/ipc/CoalescedWheelData.cpp46
1 files changed, 46 insertions, 0 deletions
diff --git a/dom/ipc/CoalescedWheelData.cpp b/dom/ipc/CoalescedWheelData.cpp
new file mode 100644
index 0000000000..c8e23ac86d
--- /dev/null
+++ b/dom/ipc/CoalescedWheelData.cpp
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "base/basictypes.h"
+
+#include "CoalescedWheelData.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+void CoalescedWheelData::Coalesce(const WidgetWheelEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId) {
+ if (IsEmpty()) {
+ mCoalescedInputEvent = MakeUnique<WidgetWheelEvent>(aEvent);
+ mGuid = aGuid;
+ mInputBlockId = aInputBlockId;
+ } else {
+ MOZ_ASSERT(mGuid == aGuid);
+ MOZ_ASSERT(mInputBlockId == aInputBlockId);
+ MOZ_ASSERT(mCoalescedInputEvent->mModifiers == aEvent.mModifiers);
+ MOZ_ASSERT(mCoalescedInputEvent->mDeltaMode == aEvent.mDeltaMode);
+ MOZ_ASSERT(mCoalescedInputEvent->mCanTriggerSwipe ==
+ aEvent.mCanTriggerSwipe);
+ mCoalescedInputEvent->mDeltaX += aEvent.mDeltaX;
+ mCoalescedInputEvent->mDeltaY += aEvent.mDeltaY;
+ mCoalescedInputEvent->mDeltaZ += aEvent.mDeltaZ;
+ mCoalescedInputEvent->mLineOrPageDeltaX += aEvent.mLineOrPageDeltaX;
+ mCoalescedInputEvent->mLineOrPageDeltaY += aEvent.mLineOrPageDeltaY;
+ mCoalescedInputEvent->mTimeStamp = aEvent.mTimeStamp;
+ }
+}
+
+bool CoalescedWheelData::CanCoalesce(const WidgetWheelEvent& aEvent,
+ const ScrollableLayerGuid& aGuid,
+ const uint64_t& aInputBlockId) {
+ MOZ_ASSERT(!IsEmpty());
+ return !mCoalescedInputEvent ||
+ (mCoalescedInputEvent->mRefPoint == aEvent.mRefPoint &&
+ mCoalescedInputEvent->mModifiers == aEvent.mModifiers &&
+ mCoalescedInputEvent->mDeltaMode == aEvent.mDeltaMode &&
+ mCoalescedInputEvent->mCanTriggerSwipe == aEvent.mCanTriggerSwipe &&
+ mGuid == aGuid && mInputBlockId == aInputBlockId);
+}