content/common/input/web_input_event_payload.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/common/input/web_input_event_payload.h"
   6
   7 #include "base/logging.h"
   8 #include "third_party/WebKit/public/web/WebInputEvent.h"
   9
  10 namespace content {
  11 namespace {
  12 static WebInputEventPayload::ScopedWebInputEvent CloneWebInputEvent(
  13     const WebKit::WebInputEvent& event) {
  14   WebInputEventPayload::ScopedWebInputEvent clone;
  15   if (WebKit::WebInputEvent::isMouseEventType(event.type))
  16     clone.reset(new WebKit::WebMouseEvent());
  17   else if (event.type == WebKit::WebInputEvent::MouseWheel)
  18     clone.reset(new WebKit::WebMouseWheelEvent());
  19   else if (WebKit::WebInputEvent::isKeyboardEventType(event.type))
  20     clone.reset(new WebKit::WebKeyboardEvent());
  21   else if (WebKit::WebInputEvent::isTouchEventType(event.type))
  22     clone.reset(new WebKit::WebTouchEvent());
  23   else if (WebKit::WebInputEvent::isGestureEventType(event.type))
  24     clone.reset(new WebKit::WebGestureEvent());
  25   else
  26     NOTREACHED() << "Unknown webkit event type " << event.type;
  27
  28   if (!clone)
  29     return clone.Pass();
  30
  31   DCHECK_EQ(event.size, clone->size);
  32   memcpy(clone.get(), &event, event.size);
  33   return clone.Pass();
  34 }
  35 }  // namespace
  36
  37 WebInputEventPayload::WebInputEventDeleter::WebInputEventDeleter() {}
  38
  39 void WebInputEventPayload::WebInputEventDeleter::operator()(
  40     WebKit::WebInputEvent* event) const {
  41   if (!event)
  42     return;
  43
  44   if (WebKit::WebInputEvent::isMouseEventType(event->type))
  45     delete static_cast<WebKit::WebMouseEvent*>(event);
  46   else if (event->type == WebKit::WebInputEvent::MouseWheel)
  47     delete static_cast<WebKit::WebMouseWheelEvent*>(event);
  48   else if (WebKit::WebInputEvent::isKeyboardEventType(event->type))
  49     delete static_cast<WebKit::WebKeyboardEvent*>(event);
  50   else if (WebKit::WebInputEvent::isTouchEventType(event->type))
  51     delete static_cast<WebKit::WebTouchEvent*>(event);
  52   else if (WebKit::WebInputEvent::isGestureEventType(event->type))
  53     delete static_cast<WebKit::WebGestureEvent*>(event);
  54   else
  55     NOTREACHED() << "Unknown webkit event type " << event->type;
  56 }
  57
  58 WebInputEventPayload::WebInputEventPayload() : is_keyboard_shortcut_(false) {}
  59
  60 WebInputEventPayload::~WebInputEventPayload() {}
  61
  62 scoped_ptr<WebInputEventPayload> WebInputEventPayload::Create() {
  63   return make_scoped_ptr(new WebInputEventPayload());
  64 }
  65
  66 scoped_ptr<WebInputEventPayload> WebInputEventPayload::Create(
  67     const WebKit::WebInputEvent& event,
  68     const ui::LatencyInfo& latency_info,
  69     bool is_keyboard_shortcut) {
  70   scoped_ptr<WebInputEventPayload> payload = Create();
  71   payload->Initialize(event, latency_info, is_keyboard_shortcut);
  72   return payload.Pass();
  73 }
  74
  75 const WebInputEventPayload* WebInputEventPayload::Cast(const Payload* payload) {
  76   DCHECK(payload);
  77   DCHECK_EQ(WEB_INPUT_EVENT, payload->GetType());
  78   return static_cast<const WebInputEventPayload*>(payload);
  79 }
  80
  81 InputEvent::Payload::Type WebInputEventPayload::GetType() const {
  82   return WEB_INPUT_EVENT;
  83 }
  84
  85 void WebInputEventPayload::Initialize(const WebKit::WebInputEvent& web_event,
  86                                       const ui::LatencyInfo& latency_info,
  87                                       bool is_keyboard_shortcut) {
  88   DCHECK(!web_event_) << "WebInputEventPayload already initialized";
  89   web_event_ = CloneWebInputEvent(web_event);
  90   latency_info_ = latency_info;
  91   is_keyboard_shortcut_ = is_keyboard_shortcut;
  92 }
  93
  94 bool WebInputEventPayload::CanCreateFollowupEvents() const {
  95   return WebKit::WebInputEvent::isTouchEventType(web_event()->type);
  96 }
  97
  98 }  // namespace content