| /* |
| * Copyright (C) 2012 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 "core/inspector/InspectorInputAgent.h" |
| |
| #include "core/frame/FrameView.h" |
| #include "core/input/EventHandler.h" |
| #include "core/inspector/InspectedFrames.h" |
| #include "core/page/ChromeClient.h" |
| #include "core/page/Page.h" |
| #include "platform/PlatformEvent.h" |
| #include "platform/PlatformTouchEvent.h" |
| #include "platform/PlatformTouchPoint.h" |
| #include "platform/geometry/FloatSize.h" |
| #include "platform/geometry/IntPoint.h" |
| #include "platform/geometry/IntRect.h" |
| #include "platform/geometry/IntSize.h" |
| #include "wtf/CurrentTime.h" |
| |
| namespace { |
| |
| enum Modifiers { |
| AltKey = 1 << 0, |
| CtrlKey = 1 << 1, |
| MetaKey = 1 << 2, |
| ShiftKey = 1 << 3 |
| }; |
| |
| unsigned GetEventModifiers(int modifiers) { |
| unsigned platformModifiers = 0; |
| if (modifiers & AltKey) |
| platformModifiers |= blink::PlatformEvent::AltKey; |
| if (modifiers & CtrlKey) |
| platformModifiers |= blink::PlatformEvent::CtrlKey; |
| if (modifiers & MetaKey) |
| platformModifiers |= blink::PlatformEvent::MetaKey; |
| if (modifiers & ShiftKey) |
| platformModifiers |= blink::PlatformEvent::ShiftKey; |
| return platformModifiers; |
| } |
| |
| // Convert given protocol timestamp which is in seconds since unix epoch to a |
| // platform event timestamp which is ticks since platform start. This conversion |
| // is an estimate because these two clocks respond differently to user setting |
| // time and NTP adjustments. If timestamp is empty then returns current |
| // monotonic timestamp. |
| double GetEventTimeStamp(const blink::protocol::Maybe<double>& timestamp) { |
| // Take a snapshot of difference between two clocks on first run and use it |
| // for the duration of the application. |
| static double epochToMonotonicTimeDelta = |
| currentTime() - monotonicallyIncreasingTime(); |
| if (timestamp.isJust()) |
| return timestamp.fromJust() - epochToMonotonicTimeDelta; |
| |
| return monotonicallyIncreasingTime(); |
| } |
| |
| class SyntheticInspectorTouchPoint : public blink::PlatformTouchPoint { |
| public: |
| SyntheticInspectorTouchPoint(int id, |
| TouchState state, |
| const blink::IntPoint& screenPos, |
| const blink::IntPoint& pos, |
| int radiusX, |
| int radiusY, |
| double rotationAngle, |
| double force) { |
| m_pointerProperties.id = id; |
| m_screenPos = screenPos; |
| m_pos = pos; |
| m_state = state; |
| m_radius = blink::FloatSize(radiusX, radiusY); |
| m_rotationAngle = rotationAngle; |
| m_pointerProperties.force = force; |
| } |
| }; |
| |
| class SyntheticInspectorTouchEvent : public blink::PlatformTouchEvent { |
| public: |
| SyntheticInspectorTouchEvent(const blink::PlatformEvent::EventType type, |
| unsigned modifiers, |
| double timestamp) { |
| m_type = type; |
| m_modifiers = modifiers; |
| m_timestamp = timestamp; |
| } |
| |
| void append(const blink::PlatformTouchPoint& point) { |
| m_touchPoints.append(point); |
| } |
| }; |
| |
| void ConvertInspectorPoint(blink::LocalFrame* frame, |
| const blink::IntPoint& pointInFrame, |
| blink::IntPoint* convertedPoint, |
| blink::IntPoint* globalPoint) { |
| *convertedPoint = frame->view()->convertToRootFrame(pointInFrame); |
| *globalPoint = |
| frame->page() |
| ->chromeClient() |
| .viewportToScreen(blink::IntRect(pointInFrame, blink::IntSize(0, 0)), |
| frame->view()) |
| .location(); |
| } |
| |
| } // namespace |
| |
| namespace blink { |
| |
| InspectorInputAgent::InspectorInputAgent(InspectedFrames* inspectedFrames) |
| : m_inspectedFrames(inspectedFrames) {} |
| |
| InspectorInputAgent::~InspectorInputAgent() {} |
| |
| Response InspectorInputAgent::dispatchTouchEvent( |
| const String& type, |
| std::unique_ptr<protocol::Array<protocol::Input::TouchPoint>> touchPoints, |
| protocol::Maybe<int> modifiers, |
| protocol::Maybe<double> timestamp) { |
| PlatformEvent::EventType convertedType; |
| if (type == "touchStart") |
| convertedType = PlatformEvent::TouchStart; |
| else if (type == "touchEnd") |
| convertedType = PlatformEvent::TouchEnd; |
| else if (type == "touchMove") |
| convertedType = PlatformEvent::TouchMove; |
| else |
| return Response::Error(String("Unrecognized type: " + type)); |
| |
| unsigned convertedModifiers = GetEventModifiers(modifiers.fromMaybe(0)); |
| |
| SyntheticInspectorTouchEvent event(convertedType, convertedModifiers, |
| GetEventTimeStamp(timestamp)); |
| |
| int autoId = 0; |
| for (size_t i = 0; i < touchPoints->length(); ++i) { |
| protocol::Input::TouchPoint* point = touchPoints->get(i); |
| int radiusX = point->getRadiusX(1); |
| int radiusY = point->getRadiusY(1); |
| double rotationAngle = point->getRotationAngle(0.0); |
| double force = point->getForce(1.0); |
| int id; |
| if (point->hasId()) { |
| if (autoId > 0) |
| id = -1; |
| else |
| id = point->getId(0); |
| autoId = -1; |
| } else { |
| id = autoId++; |
| } |
| if (id < 0) { |
| return Response::Error( |
| "All or none of the provided TouchPoints must supply positive " |
| "integer ids."); |
| } |
| |
| PlatformTouchPoint::TouchState convertedState; |
| String state = point->getState(); |
| if (state == "touchPressed") |
| convertedState = PlatformTouchPoint::TouchPressed; |
| else if (state == "touchReleased") |
| convertedState = PlatformTouchPoint::TouchReleased; |
| else if (state == "touchMoved") |
| convertedState = PlatformTouchPoint::TouchMoved; |
| else if (state == "touchStationary") |
| convertedState = PlatformTouchPoint::TouchStationary; |
| else if (state == "touchCancelled") |
| convertedState = PlatformTouchPoint::TouchCancelled; |
| else |
| return Response::Error(String("Unrecognized state: " + state)); |
| |
| // Some platforms may have flipped coordinate systems, but the given |
| // coordinates assume the origin is in the top-left of the window. Convert. |
| IntPoint convertedPoint, globalPoint; |
| ConvertInspectorPoint(m_inspectedFrames->root(), |
| IntPoint(point->getX(), point->getY()), |
| &convertedPoint, &globalPoint); |
| |
| SyntheticInspectorTouchPoint touchPoint(id++, convertedState, globalPoint, |
| convertedPoint, radiusX, radiusY, |
| rotationAngle, force); |
| event.append(touchPoint); |
| } |
| |
| m_inspectedFrames->root()->eventHandler().handleTouchEvent(event); |
| return Response::OK(); |
| } |
| |
| DEFINE_TRACE(InspectorInputAgent) { |
| visitor->trace(m_inspectedFrames); |
| InspectorBaseAgent::trace(visitor); |
| } |
| |
| } // namespace blink |
