1 files changed, 44 insertions, 0 deletions
diff --git a/chromium/ui/views/interaction/interaction_sequence_views.cc b/chromium/ui/views/interaction/interaction_sequence_views.cc
new file mode 100644
index 00000000000..99323124e8e
--- /dev/null
+++ b/chromium/ui/views/interaction/interaction_sequence_views.cc
@@ -0,0 +1,44 @@
+// Copyright 2021 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/views/interaction/interaction_sequence_views.h"
+
+#include <utility>
+
+#include "ui/base/interaction/element_identifier.h"
+#include "ui/views/interaction/element_tracker_views.h"
+#include "ui/views/view.h"
+#include "ui/views/view_class_properties.h"
+
+namespace views {
+
+// static
+std::unique_ptr<ui::InteractionSequence::Step>
+InteractionSequenceViews::WithInitialView(
+    View* view,
+    ui::InteractionSequence::StepCallback start_callback,
+    ui::InteractionSequence::StepCallback end_callback) {
+  // If there's already an element associated with this view, then explicitly
+  // key off of that element.
+  auto* const element =
+      ElementTrackerViews::GetInstance()->GetElementForView(view);
+  if (element)
+    return ui::InteractionSequence::WithInitialElement(
+        element, std::move(start_callback), std::move(end_callback));
+
+  // Otherwise, use the element's identifier and context.
+  ui::ElementContext context = ElementTrackerViews::GetContextForView(view);
+  ui::ElementIdentifier identifier = view->GetProperty(kElementIdentifierKey);
+  return ui::InteractionSequence::StepBuilder()
+      .SetContext(context)
+      .SetElementID(identifier)
+      .SetType(ui::InteractionSequence::StepType::kShown)
+      .SetMustBeVisibleAtStart(true)
+      .SetMustRemainVisible(true)
+      .SetStartCallback(std::move(start_callback))
+      .SetEndCallback(std::move(end_callback))
+      .Build();
+}
+
+}  // namespace views