Rename SyntheticPointer to SyntheticPointerDriver

content/browser/renderer_host/input/synthetic_touch_driver.cc

+// 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/synthetic_touch_driver.h"
+
+#include "content/browser/renderer_host/input/synthetic_gesture_target.h"
+
+namespace content {
+
+SyntheticTouchDriver::SyntheticTouchDriver() {}
+
+SyntheticTouchDriver::SyntheticTouchDriver(SyntheticWebTouchEvent touch_event)
+    : touch_event_(touch_event) {}
+
+SyntheticTouchDriver::~SyntheticTouchDriver() {}
+
+void SyntheticTouchDriver::DispatchEvent(SyntheticGestureTarget* target,
+                                         const base::TimeTicks& timestamp) {
+  touch_event_.timeStampSeconds = ConvertTimestampToSeconds(timestamp);
+  target->DispatchInputEventToPlatform(touch_event_);
+}
+
+int SyntheticTouchDriver::Press(float x, float y) {
+  int index = touch_event_.PressPoint(x, y);
+  return index;
+}
+
+void SyntheticTouchDriver::Move(float x, float y, int index) {
+  touch_event_.MovePoint(index, x, y);
+}
+
+void SyntheticTouchDriver::Release(int index) {
+  touch_event_.ReleasePoint(index);
+}
+
+bool SyntheticTouchDriver::UserInputCheck(
+    const SyntheticPointerActionParams& params) const {

[tdresser, 2016/11/10 14:58:32]

Should we check that the index is valid (we have a pointer for any move /
release, and don't have a pointer for press?)

[lanwei, 2016/11/10 19:45:22]

I added a DCHECK, because the params.index() is setted when we call press, so I
was not sure if we need to check it.

+  if (params.gesture_source_type != SyntheticGestureParams::TOUCH_INPUT)
+    return false;
+
+  if (params.pointer_action_type() ==
+      SyntheticPointerActionParams::PointerActionType::NOT_INITIALIZED) {
+    return false;
+  }
+
+  if (params.pointer_action_type() ==
+          SyntheticPointerActionParams::PointerActionType::PRESS &&
+      params.index() >= 0) {
+    return false;
+  }
+
+  if (params.pointer_action_type() ==
+          SyntheticPointerActionParams::PointerActionType::MOVE &&
+      params.index() == -1) {
+    return false;
+  }
+
+  if (params.pointer_action_type() ==
+          SyntheticPointerActionParams::PointerActionType::RELEASE &&
+      params.index() == -1) {
+    return false;
+  }
+
+  return true;
+}
+
+}  // namespace content