Move WebInputEventConversion from web/ to core/events/.

third_party/WebKit/Source/web/WebInputEventConversion.cpp

Index: third_party/WebKit/Source/web/WebInputEventConversion.cpp
diff --git a/third_party/WebKit/Source/web/WebInputEventConversion.cpp b/third_party/WebKit/Source/web/WebInputEventConversion.cpp
deleted file mode 100644
index 76b7fa577bb8adab4f337fe354ea385acb9a569e..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/web/WebInputEventConversion.cpp
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * Copyright (C) 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "web/WebInputEventConversion.h"
-
-#include "core/dom/Touch.h"
-#include "core/dom/TouchList.h"
-#include "core/events/GestureEvent.h"
-#include "core/events/KeyboardEvent.h"
-#include "core/events/MouseEvent.h"
-#include "core/events/TouchEvent.h"
-#include "core/events/WheelEvent.h"
-#include "core/frame/FrameView.h"
-#include "core/frame/VisualViewport.h"
-#include "core/layout/api/LayoutItem.h"
-#include "core/page/ChromeClient.h"
-#include "core/page/Page.h"
-#include "platform/KeyboardCodes.h"
-#include "public/platform/Platform.h"
-
-namespace blink {
-
-namespace {
-float FrameScale(const FrameView* frame_view) {
-  float scale = 1;
-  if (frame_view) {
-    FrameView* root_view = frame_view->GetFrame().LocalFrameRoot().View();
-    if (root_view)
-      scale = root_view->InputEventsScaleFactor();
-  }
-  return scale;
-}
-
-FloatPoint FrameTranslation(const FrameView* frame_view) {
-  float scale = 1;
-  FloatSize offset;
-  IntPoint visual_viewport;
-  FloatSize overscroll_offset;
-  if (frame_view) {
-    FrameView* root_view = frame_view->GetFrame().LocalFrameRoot().View();
-    if (root_view) {
-      scale = root_view->InputEventsScaleFactor();
-      offset = FloatSize(root_view->InputEventsOffsetForEmulation());
-      visual_viewport = FlooredIntPoint(
-          root_view->GetPage()->GetVisualViewport().VisibleRect().Location());
-      overscroll_offset =
-          root_view->GetPage()->GetChromeClient().ElasticOverscroll();
-    }
-  }
-  return FloatPoint(
-      -offset.Width() / scale + visual_viewport.X() + overscroll_offset.Width(),
-      -offset.Height() / scale + visual_viewport.Y() +
-          overscroll_offset.Height());
-}
-
-FloatPoint ConvertAbsoluteLocationForLayoutObjectFloat(
-    const DoublePoint& location,
-    const LayoutItem layout_item) {
-  return layout_item.AbsoluteToLocal(FloatPoint(location), kUseTransforms);
-}
-
-IntPoint ConvertAbsoluteLocationForLayoutObjectInt(
-    const DoublePoint& location,
-    const LayoutItem layout_item) {
-  return RoundedIntPoint(
-      ConvertAbsoluteLocationForLayoutObjectFloat(location, layout_item));
-}
-
-// FIXME: Change |FrameView| to const FrameView& after RemoteFrames get
-// RemoteFrameViews.
-void UpdateWebMouseEventFromCoreMouseEvent(const MouseEvent& event,
-                                           const FrameView* plugin_parent,
-                                           const LayoutItem layout_item,
-                                           WebMouseEvent& web_event) {
-  web_event.SetTimeStampSeconds(event.PlatformTimeStamp().InSeconds());
-  web_event.SetModifiers(event.GetModifiers());
-
-  // TODO(bokan): If plugin_parent == nullptr, pointInRootFrame will really be
-  // pointInRootContent.
-  IntPoint point_in_root_frame(event.AbsoluteLocation().X(),
-                               event.AbsoluteLocation().Y());
-  if (plugin_parent) {
-    point_in_root_frame =
-        plugin_parent->ContentsToRootFrame(point_in_root_frame);
-  }
-  web_event.SetPositionInScreen(event.screenX(), event.screenY());
-  IntPoint local_point = ConvertAbsoluteLocationForLayoutObjectInt(
-      event.AbsoluteLocation(), layout_item);
-  web_event.SetPositionInWidget(local_point.X(), local_point.Y());
-}
-
-unsigned ToWebInputEventModifierFrom(WebMouseEvent::Button button) {
-  if (button == WebMouseEvent::Button::kNoButton)
-    return 0;
-
-  unsigned web_mouse_button_to_platform_modifier[] = {
-      WebInputEvent::kLeftButtonDown, WebInputEvent::kMiddleButtonDown,
-      WebInputEvent::kRightButtonDown, WebInputEvent::kBackButtonDown,
-      WebInputEvent::kForwardButtonDown};
-
-  return web_mouse_button_to_platform_modifier[static_cast<int>(button)];
-}
-
-}  // namespace
-
-WebMouseEvent TransformWebMouseEvent(FrameView* frame_view,
-                                     const WebMouseEvent& event) {
-  WebMouseEvent result = event;
-
-  // TODO(dtapuska): Perhaps the event should be constructed correctly?
-  // crbug.com/686200
-  if (event.GetType() == WebInputEvent::kMouseUp) {
-    result.SetModifiers(event.GetModifiers() &
-                        ~ToWebInputEventModifierFrom(event.button));
-  }
-  result.SetFrameScale(FrameScale(frame_view));
-  result.SetFrameTranslate(FrameTranslation(frame_view));
-  return result;
-}
-
-WebMouseWheelEvent TransformWebMouseWheelEvent(
-    FrameView* frame_view,
-    const WebMouseWheelEvent& event) {
-  WebMouseWheelEvent result = event;
-  result.SetFrameScale(FrameScale(frame_view));
-  result.SetFrameTranslate(FrameTranslation(frame_view));
-  return result;
-}
-
-WebGestureEvent TransformWebGestureEvent(FrameView* frame_view,
-                                         const WebGestureEvent& event) {
-  WebGestureEvent result = event;
-  result.SetFrameScale(FrameScale(frame_view));
-  result.SetFrameTranslate(FrameTranslation(frame_view));
-  return result;
-}
-
-WebTouchEvent TransformWebTouchEvent(float frame_scale,
-                                     FloatPoint frame_translate,
-                                     const WebTouchEvent& event) {
-  // frameScale is default initialized in debug builds to be 0.
-  DCHECK_EQ(0, event.FrameScale());
-  DCHECK_EQ(0, event.FrameTranslate().x);
-  DCHECK_EQ(0, event.FrameTranslate().y);
-  WebTouchEvent result = event;
-  result.SetFrameScale(frame_scale);
-  result.SetFrameTranslate(frame_translate);
-  return result;
-}
-
-WebTouchEvent TransformWebTouchEvent(FrameView* frame_view,
-                                     const WebTouchEvent& event) {
-  return TransformWebTouchEvent(FrameScale(frame_view),
-                                FrameTranslation(frame_view), event);
-}
-
-WebMouseEventBuilder::WebMouseEventBuilder(const FrameView* plugin_parent,
-                                           const LayoutItem layout_item,
-                                           const MouseEvent& event) {
-  if (event.NativeEvent()) {
-    *static_cast<WebMouseEvent*>(this) =
-        event.NativeEvent()->FlattenTransform();
-    WebFloatPoint absolute_location = PositionInRootFrame();
-
-    // TODO(dtapuska): |plugin_parent| should never be null. Remove this
-    // conditional code.
-    // Translate the root frame position to content coordinates.
-    if (plugin_parent) {
-      absolute_location = plugin_parent->RootFrameToContents(absolute_location);
-    }
-
-    IntPoint local_point = RoundedIntPoint(
-        layout_item.AbsoluteToLocal(absolute_location, kUseTransforms));
-    SetPositionInWidget(local_point.X(), local_point.Y());
-    return;
-  }
-
-  // Code below here can be removed once OOPIF ships.
-  // OOPIF will prevent synthetic events being dispatched into
-  // other frames; but for now we allow the fallback to generate
-  // WebMouseEvents from synthetic events.
-  if (event.type() == EventTypeNames::mousemove)
-    type_ = WebInputEvent::kMouseMove;
-  else if (event.type() == EventTypeNames::mouseout)
-    type_ = WebInputEvent::kMouseLeave;
-  else if (event.type() == EventTypeNames::mouseover)
-    type_ = WebInputEvent::kMouseEnter;
-  else if (event.type() == EventTypeNames::mousedown)
-    type_ = WebInputEvent::kMouseDown;
-  else if (event.type() == EventTypeNames::mouseup)
-    type_ = WebInputEvent::kMouseUp;
-  else if (event.type() == EventTypeNames::contextmenu)
-    type_ = WebInputEvent::kContextMenu;
-  else
-    return;  // Skip all other mouse events.
-
-  time_stamp_seconds_ = event.PlatformTimeStamp().InSeconds();
-  modifiers_ = event.GetModifiers();
-  UpdateWebMouseEventFromCoreMouseEvent(event, plugin_parent, layout_item,
-                                        *this);
-
-  switch (event.button()) {
-    case short(WebPointerProperties::Button::kLeft):
-      button = WebMouseEvent::Button::kLeft;
-      break;
-    case short(WebPointerProperties::Button::kMiddle):
-      button = WebMouseEvent::Button::kMiddle;
-      break;
-    case short(WebPointerProperties::Button::kRight):
-      button = WebMouseEvent::Button::kRight;
-      break;
-    case short(WebPointerProperties::Button::kBack):
-      button = WebMouseEvent::Button::kBack;
-      break;
-    case short(WebPointerProperties::Button::kForward):
-      button = WebMouseEvent::Button::kForward;
-      break;
-  }
-  if (event.ButtonDown()) {
-    switch (event.button()) {
-      case short(WebPointerProperties::Button::kLeft):
-        modifiers_ |= WebInputEvent::kLeftButtonDown;
-        break;
-      case short(WebPointerProperties::Button::kMiddle):
-        modifiers_ |= WebInputEvent::kMiddleButtonDown;
-        break;
-      case short(WebPointerProperties::Button::kRight):
-        modifiers_ |= WebInputEvent::kRightButtonDown;
-        break;
-      case short(WebPointerProperties::Button::kBack):
-        modifiers_ |= WebInputEvent::kBackButtonDown;
-        break;
-      case short(WebPointerProperties::Button::kForward):
-        modifiers_ |= WebInputEvent::kForwardButtonDown;
-        break;
-    }
-  } else {
-    button = WebMouseEvent::Button::kNoButton;
-  }
-  movement_x = event.movementX();
-  movement_y = event.movementY();
-  click_count = event.detail();
-
-  pointer_type = WebPointerProperties::PointerType::kMouse;
-}
-
-// Generate a synthetic WebMouseEvent given a TouchEvent (eg. for emulating a
-// mouse with touch input for plugins that don't support touch input).
-WebMouseEventBuilder::WebMouseEventBuilder(const FrameView* plugin_parent,
-                                           const LayoutItem layout_item,
-                                           const TouchEvent& event) {
-  if (!event.touches())
-    return;
-  if (event.touches()->length() != 1) {
-    if (event.touches()->length() || event.type() != EventTypeNames::touchend ||
-        !event.changedTouches() || event.changedTouches()->length() != 1)
-      return;
-  }
-
-  const Touch* touch = event.touches()->length() == 1
-                           ? event.touches()->item(0)
-                           : event.changedTouches()->item(0);
-  if (touch->identifier())
-    return;
-
-  if (event.type() == EventTypeNames::touchstart)
-    type_ = kMouseDown;
-  else if (event.type() == EventTypeNames::touchmove)
-    type_ = kMouseMove;
-  else if (event.type() == EventTypeNames::touchend)
-    type_ = kMouseUp;
-  else
-    return;
-
-  time_stamp_seconds_ = event.PlatformTimeStamp().InSeconds();
-  modifiers_ = event.GetModifiers();
-  frame_scale_ = 1;
-  frame_translate_ = WebFloatPoint();
-
-  // The mouse event co-ordinates should be generated from the co-ordinates of
-  // the touch point.
-  // FIXME: if plugin_parent == nullptr, pointInRootFrame will really be
-  // pointInRootContent.
-  IntPoint point_in_root_frame = RoundedIntPoint(touch->AbsoluteLocation());
-  if (plugin_parent) {
-    point_in_root_frame =
-        plugin_parent->ContentsToRootFrame(point_in_root_frame);
-  }
-  IntPoint screen_point = RoundedIntPoint(touch->ScreenLocation());
-  SetPositionInScreen(screen_point.X(), screen_point.Y());
-
-  button = WebMouseEvent::Button::kLeft;
-  modifiers_ |= WebInputEvent::kLeftButtonDown;
-  click_count = (type_ == kMouseDown || type_ == kMouseUp);
-
-  IntPoint local_point = ConvertAbsoluteLocationForLayoutObjectInt(
-      DoublePoint(touch->AbsoluteLocation()), layout_item);
-  SetPositionInWidget(local_point.X(), local_point.Y());
-
-  pointer_type = WebPointerProperties::PointerType::kTouch;
-}
-
-WebKeyboardEventBuilder::WebKeyboardEventBuilder(const KeyboardEvent& event) {
-  if (const WebKeyboardEvent* web_event = event.KeyEvent()) {
-    *static_cast<WebKeyboardEvent*>(this) = *web_event;
-
-    // TODO(dtapuska): DOM KeyboardEvents converted back to WebInputEvents
-    // drop the Raw behaviour. Figure out if this is actually really needed.
-    if (type_ == kRawKeyDown)
-      type_ = kKeyDown;
-    return;
-  }
-
-  if (event.type() == EventTypeNames::keydown)
-    type_ = kKeyDown;
-  else if (event.type() == EventTypeNames::keyup)
-    type_ = WebInputEvent::kKeyUp;
-  else if (event.type() == EventTypeNames::keypress)
-    type_ = WebInputEvent::kChar;
-  else
-    return;  // Skip all other keyboard events.
-
-  modifiers_ = event.GetModifiers();
-  time_stamp_seconds_ = event.PlatformTimeStamp().InSeconds();
-  windows_key_code = event.keyCode();
-}
-
-Vector<WebMouseEvent> TransformWebMouseEventVector(
-    FrameView* frame_view,
-    const std::vector<const WebInputEvent*>& coalesced_events) {
-  Vector<WebMouseEvent> result;
-  for (const auto& event : coalesced_events) {
-    DCHECK(WebInputEvent::IsMouseEventType(event->GetType()));
-    result.push_back(TransformWebMouseEvent(
-        frame_view, static_cast<const WebMouseEvent&>(*event)));
-  }
-  return result;
-}
-
-Vector<WebTouchEvent> TransformWebTouchEventVector(
-    FrameView* frame_view,
-    const std::vector<const WebInputEvent*>& coalesced_events) {
-  float scale = FrameScale(frame_view);
-  FloatPoint translation = FrameTranslation(frame_view);
-  Vector<WebTouchEvent> result;
-  for (const auto& event : coalesced_events) {
-    DCHECK(WebInputEvent::IsTouchEventType(event->GetType()));
-    result.push_back(TransformWebTouchEvent(
-        scale, translation, static_cast<const WebTouchEvent&>(*event)));
-  }
-  return result;
-}
-
-}  // namespace blink