Add InputEvent and EventPacket types for batched input delivery

content/common/input/web_event.cc

+// Copyright (c) 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/common/input/web_event.h"
+
+#include "base/logging.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"
+
+namespace content {
+namespace {
+// TODO(jdduke): Destroy this and WebEvent entirely when we find a suitable
+// replacement for input event types in content/.
+static scoped_ptr<WebKit::WebInputEvent> CloneWebInputEvent(
+    const WebKit::WebInputEvent& event) {
+  scoped_ptr<WebKit::WebInputEvent> clone;
+  if (WebKit::WebInputEvent::isMouseEventType(event.type))
+    clone.reset(new WebKit::WebMouseEvent());
+  else if (event.type == WebKit::WebInputEvent::MouseWheel)
+    clone.reset(new WebKit::WebMouseWheelEvent());
+  else if (WebKit::WebInputEvent::isKeyboardEventType(event.type))
+    clone.reset(new WebKit::WebKeyboardEvent());
+  else if (WebKit::WebInputEvent::isTouchEventType(event.type))
+    clone.reset(new WebKit::WebTouchEvent());
+  else if (WebKit::WebInputEvent::isGestureEventType(event.type))
+    clone.reset(new WebKit::WebGestureEvent());
+  else
+    NOTREACHED() << "Unknown webkit event type " << event.type;
+
+  if (clone) {
+    DCHECK(clone->size == event.size);
+    memcpy(clone.get(), &event, event.size);
+  }
+
+  return clone.Pass();
+}
+}  // namespace
+
+WebEvent::WebEvent(int64 id)
+    : InputEvent(InputEvent::WEB, id),
+      is_keyboard_shortcut(false),
+      creates_followup_events(false) {}
+
+scoped_ptr<WebEvent> WebEvent::Create() {
+  return make_scoped_ptr(new WebEvent(0));
+}
+
+scoped_ptr<WebEvent> WebEvent::Create(int64 id,
+                                      const WebKit::WebInputEvent& event,
+                                      const ui::LatencyInfo& latency_info,
+                                      bool is_keyboard_shortcut,
+                                      bool creates_followup_events) {
+  scoped_ptr<WebEvent> web_event(new WebEvent(id));
+  web_event->SetAll(event,
+                    latency_info,
+                    is_keyboard_shortcut,
+                    creates_followup_events);
+  return web_event.Pass();
+}
+
+void WebEvent::SetAll(const WebKit::WebInputEvent& event,
+                      const ui::LatencyInfo& latency_info,
+                      bool is_keyboard_shortcut,
+                      bool creates_followup_events) {
+  this->event = CloneWebInputEvent(event);
+  this->latency_info = latency_info;
+  this->is_keyboard_shortcut = is_keyboard_shortcut;
+  this->creates_followup_events = creates_followup_events;
+}
+
+const WebEvent* WebEvent::EventCast(const InputEvent* event) {
+  DCHECK_EQ(InputEvent::WEB, event->type);
+  return static_cast<const WebEvent*>(event);
+}
+
+} // namespace content