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Unified Diff: content/browser/renderer_host/input/mouse_wheel_rails_filter_unittest_mac.cc

Issue 1019153002: Mac: Add rails for scrolling. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Incorporate review feedback Created 5 years, 9 months ago
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Index: content/browser/renderer_host/input/mouse_wheel_rails_filter_unittest_mac.cc
diff --git a/content/browser/renderer_host/input/mouse_wheel_rails_filter_unittest_mac.cc b/content/browser/renderer_host/input/mouse_wheel_rails_filter_unittest_mac.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7811ef7512d5d82d987a4ad24868a8f98d437768
--- /dev/null
+++ b/content/browser/renderer_host/input/mouse_wheel_rails_filter_unittest_mac.cc
@@ -0,0 +1,64 @@
+// Copyright 2015 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 "content/browser/renderer_host/input/mouse_wheel_rails_filter_mac.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using blink::WebInputEvent;
+using blink::WebMouseWheelEvent;
+
+namespace content {
+namespace {
+
+WebMouseWheelEvent MakeEvent(WebMouseWheelEvent::Phase phase,
+ float delta_x,
+ float delta_y) {
+ WebMouseWheelEvent event;
+ event.phase = phase;
+ event.deltaX = delta_x;
+ event.deltaY = delta_y;
+ return event;
+}
+
+TEST(MouseWheelRailsFilterMacTest, Functionality) {
+ WebInputEvent::RailsMode mode;
+ MouseWheelRailsFilterMac filter;
+
+ // Start with a mostly-horizontal event and see that it is locked
+ // horizontally and continues to be locked.
+ mode =
+ filter.UpdateRailsMode(MakeEvent(WebMouseWheelEvent::PhaseBegan, 2, 1));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 2, 2));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 10, -4));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+
+ // Change from horizontal to vertical and back.
+ mode =
+ filter.UpdateRailsMode(MakeEvent(WebMouseWheelEvent::PhaseBegan, 4, 1));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 3, 4));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 1, 4));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeVertical);
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 10, 0));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeHorizontal);
+
+ // Make sure zeroes don't break things.
+ mode = filter.UpdateRailsMode(
+ MakeEvent(WebMouseWheelEvent::PhaseChanged, 0, 0));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeFree);
+ mode =
+ filter.UpdateRailsMode(MakeEvent(WebMouseWheelEvent::PhaseBegan, 0, 0));
+ EXPECT_EQ(mode, WebInputEvent::RailsModeFree);
+}
+
+} // namespace
+} // namespace content

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