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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 /gfx/layers/apz/util/TouchActionHelper.h
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 'gfx/layers/apz/util/TouchActionHelper.h')
-rw-r--r--gfx/layers/apz/util/TouchActionHelper.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/gfx/layers/apz/util/TouchActionHelper.h b/gfx/layers/apz/util/TouchActionHelper.h
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+/* -*- 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/. */
+
+#ifndef __mozilla_layers_TouchActionHelper_h__
+#define __mozilla_layers_TouchActionHelper_h__
+
+#include "mozilla/layers/LayersTypes.h" // for TouchBehaviorFlags
+#include "RelativeTo.h" // for RelativeTo
+
+class nsIWidget;
+namespace mozilla {
+
+namespace dom {
+class Document;
+} // namespace dom
+
+class WidgetTouchEvent;
+} // namespace mozilla
+
+namespace mozilla::layers {
+
+/*
+ * Helper class to figure out the allowed touch behavior for frames, as per
+ * the touch-action spec.
+ */
+class TouchActionHelper {
+ public:
+ /*
+ * Performs hit testing on content, finds frame that corresponds to the touch
+ * points of aEvent and retrieves touch-action CSS property value from it
+ * according the rules specified in the spec:
+ * http://www.w3.org/TR/pointerevents/#the-touch-action-css-property.
+ */
+ static nsTArray<TouchBehaviorFlags> GetAllowedTouchBehavior(
+ nsIWidget* aWidget, dom::Document* aDocument,
+ const WidgetTouchEvent& aPoint);
+
+ static TouchBehaviorFlags GetAllowedTouchBehaviorForFrame(nsIFrame* aFrame);
+};
+
+} // namespace mozilla::layers
+
+#endif /*__mozilla_layers_TouchActionHelper_h__ */