Provided batched input delivery with a BufferedInputRouter

content/browser/renderer_host/input/input_router_unittest.cc

+// Copyright 2013 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/input_router_unittest.h"
+
+#include "content/browser/renderer_host/input/input_router.h"
+#include "content/common/input_messages.h"
+#include "ui/base/keycodes/keyboard_codes.h"
+
+#if defined(OS_WIN) || defined(USE_AURA)
+#include "content/browser/renderer_host/ui_events_helper.h"
+#include "ui/base/events/event.h"
+#endif
+
+using WebKit::WebGestureEvent;
+using WebKit::WebInputEvent;
+using WebKit::WebMouseEvent;
+using WebKit::WebMouseWheelEvent;
+using WebKit::WebTouchEvent;
+using WebKit::WebTouchPoint;
+
+namespace content {
+
+InputRouterTest::InputRouterTest() {}
+InputRouterTest::~InputRouterTest() {}
+
+void InputRouterTest::SetUp() {
+  browser_context_.reset(new TestBrowserContext());
+  process_.reset(new MockRenderProcessHost(browser_context_.get()));
+  client_.reset(new MockInputRouterClient());
+  input_router_ = CreateInputRouter(process_.get(),
+                                    client_.get(),
+                                    MSG_ROUTING_NONE);
+  client_->set_input_router(input_router_.get());
+  process_->sink().AddFilter(this);
+}
+
+void InputRouterTest::TearDown() {
+  // Process all pending tasks to avoid InputRouterTest::leaks.
+  base::MessageLoop::current()->RunUntilIdle();
+
+  input_router_.reset();
+  client_.reset();
+  process_.reset();
+  browser_context_.reset();
+}
+
+bool InputRouterTest::OnMessageReceived(const IPC::Message& listener) {
+  return false;
+}
+
+void InputRouterTest::SimulateKeyboardEvent(WebInputEvent::Type type) {
+  NativeWebKeyboardEvent key_event;
+  key_event.type = type;
+  key_event.windowsKeyCode = ui::VKEY_L;  // non-null made up value.
+  input_router_->SendKeyboardEvent(key_event, ui::LatencyInfo());
+  client_->ExpectSendCalled(true);
+  EXPECT_EQ(type, client_->sent_key_event().type);
+  EXPECT_EQ(key_event.windowsKeyCode,
+            client_->sent_key_event().windowsKeyCode);
+}
+
+void InputRouterTest::SimulateWheelEvent(float dX,
+                                         float dY,
+                                         int modifiers,
+                                         bool precise) {
+  WebMouseWheelEvent wheel_event;
+  wheel_event.type = WebInputEvent::MouseWheel;
+  wheel_event.deltaX = dX;
+  wheel_event.deltaY = dY;
+  wheel_event.modifiers = modifiers;
+  wheel_event.hasPreciseScrollingDeltas = precise;
+  input_router_->SendWheelEvent(
+      MouseWheelEventWithLatencyInfo(wheel_event, ui::LatencyInfo()));
+  client_->ExpectSendCalled(true);
+  EXPECT_EQ(wheel_event.type, client_->sent_wheel_event().event.type);
+  EXPECT_EQ(dX, client_->sent_wheel_event().event.deltaX);
+}
+
+void InputRouterTest::SimulateMouseMove(int x, int y, int modifiers) {
+  WebMouseEvent mouse_event;
+  mouse_event.type = WebInputEvent::MouseMove;
+  mouse_event.x = mouse_event.windowX = x;
+  mouse_event.y = mouse_event.windowY = y;
+  mouse_event.modifiers = modifiers;
+  input_router_->SendMouseEvent(
+      MouseEventWithLatencyInfo(mouse_event, ui::LatencyInfo()));
+  client_->ExpectSendCalled(true);
+  EXPECT_EQ(mouse_event.type, client_->sent_mouse_event().event.type);
+  EXPECT_EQ(x, client_->sent_mouse_event().event.x);
+}
+
+void InputRouterTest::SimulateWheelEventWithPhase(
+    WebMouseWheelEvent::Phase phase) {
+  WebMouseWheelEvent wheel_event;
+  wheel_event.type = WebInputEvent::MouseWheel;
+  wheel_event.phase = phase;
+  input_router_->SendWheelEvent(
+      MouseWheelEventWithLatencyInfo(wheel_event, ui::LatencyInfo()));
+  client_->ExpectSendCalled(true);
+  EXPECT_EQ(wheel_event.type, client_->sent_wheel_event().event.type);
+  EXPECT_EQ(phase, client_->sent_wheel_event().event.phase);
+}
+
+// Inject provided synthetic WebGestureEvent instance.
+void InputRouterTest::SimulateGestureEventCore(WebInputEvent::Type type,
+                          WebGestureEvent::SourceDevice sourceDevice,
+                          WebGestureEvent* gesture_event) {
+  gesture_event->type = type;
+  gesture_event->sourceDevice = sourceDevice;
+  GestureEventWithLatencyInfo gesture_with_latency(
+      *gesture_event, ui::LatencyInfo());
+  input_router_->SendGestureEvent(gesture_with_latency);
+  client_->ExpectSendCalled(true);
+  EXPECT_EQ(type, client_->sent_gesture_event().event.type);
+  EXPECT_EQ(sourceDevice, client_->sent_gesture_event().event.sourceDevice);
+}
+
+// Inject simple synthetic WebGestureEvent instances.
+void InputRouterTest::SimulateGestureEvent(WebInputEvent::Type type,
+                          WebGestureEvent::SourceDevice sourceDevice) {
+  WebGestureEvent gesture_event;
+  SimulateGestureEventCore(type, sourceDevice, &gesture_event);
+}
+
+void InputRouterTest::SimulateGestureScrollUpdateEvent(float dX,
+                                                       float dY,
+                                                       int modifiers) {
+  WebGestureEvent gesture_event;
+  gesture_event.data.scrollUpdate.deltaX = dX;
+  gesture_event.data.scrollUpdate.deltaY = dY;
+  gesture_event.modifiers = modifiers;
+  SimulateGestureEventCore(WebInputEvent::GestureScrollUpdate,
+                           WebGestureEvent::Touchscreen, &gesture_event);
+}
+
+void InputRouterTest::SimulateGesturePinchUpdateEvent(float scale,
+                                                      float anchorX,
+                                                      float anchorY,
+                                                      int modifiers) {
+  WebGestureEvent gesture_event;
+  gesture_event.data.pinchUpdate.scale = scale;
+  gesture_event.x = anchorX;
+  gesture_event.y = anchorY;
+  gesture_event.modifiers = modifiers;
+  SimulateGestureEventCore(WebInputEvent::GesturePinchUpdate,
+                           WebGestureEvent::Touchscreen, &gesture_event);
+}
+
+// Inject synthetic GestureFlingStart events.
+void InputRouterTest::SimulateGestureFlingStartEvent(
+    float velocityX,
+    float velocityY,
+    WebGestureEvent::SourceDevice sourceDevice) {
+  WebGestureEvent gesture_event;
+  gesture_event.data.flingStart.velocityX = velocityX;
+  gesture_event.data.flingStart.velocityY = velocityY;
+  SimulateGestureEventCore(WebInputEvent::GestureFlingStart, sourceDevice,
+                           &gesture_event);
+}
+
+void InputRouterTest::SimulateTouchEvent(
+    int x,
+    int y) {
+  PressTouchPoint(x, y);
+  SendTouchEvent();
+}
+
+// Set the timestamp for the touch-event.
+void InputRouterTest::SetTouchTimestamp(base::TimeDelta timestamp) {
+  touch_event_.timeStampSeconds = timestamp.InSecondsF();
+}
+
+// Sends a touch event (irrespective of whether the page has a touch-event
+// handler or not).
+void InputRouterTest::SendTouchEvent() {
+  input_router_->SendTouchEvent(
+      TouchEventWithLatencyInfo(touch_event_, ui::LatencyInfo()));
+
+  // Mark all the points as stationary. And remove the points that have been
+  // released.
+  int point = 0;
+  for (unsigned int i = 0; i < touch_event_.touchesLength; ++i) {
+    if (touch_event_.touches[i].state == WebTouchPoint::StateReleased)
+      continue;
+
+    touch_event_.touches[point] = touch_event_.touches[i];
+    touch_event_.touches[point].state =
+        WebTouchPoint::StateStationary;
+    ++point;
+  }
+  touch_event_.touchesLength = point;
+  touch_event_.type = WebInputEvent::Undefined;
+}
+
+int InputRouterTest::PressTouchPoint(int x, int y) {
+  if (touch_event_.touchesLength == touch_event_.touchesLengthCap)
+    return -1;
+  WebTouchPoint& point =
+      touch_event_.touches[touch_event_.touchesLength];
+  point.id = touch_event_.touchesLength;
+  point.position.x = point.screenPosition.x = x;
+  point.position.y = point.screenPosition.y = y;
+  point.state = WebTouchPoint::StatePressed;
+  point.radiusX = point.radiusY = 1.f;
+  ++touch_event_.touchesLength;
+  touch_event_.type = WebInputEvent::TouchStart;
+  return point.id;
+}
+
+void InputRouterTest::MoveTouchPoint(int index, int x, int y) {
+  CHECK(index >= 0 && index < touch_event_.touchesLengthCap);
+  WebTouchPoint& point = touch_event_.touches[index];
+  point.position.x = point.screenPosition.x = x;
+  point.position.y = point.screenPosition.y = y;
+  touch_event_.touches[index].state = WebTouchPoint::StateMoved;
+  touch_event_.type = WebInputEvent::TouchMove;
+}
+
+void InputRouterTest::ReleaseTouchPoint(int index) {
+  CHECK(index >= 0 && index < touch_event_.touchesLengthCap);
+  touch_event_.touches[index].state = WebTouchPoint::StateReleased;
+  touch_event_.type = WebInputEvent::TouchEnd;
+}
+
+}  // namespace content