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      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/test/web_gesture_curve_mock.h"
      6 
      7 #include "content/test/weburl_loader_mock_factory.h"
      8 #include "third_party/WebKit/public/platform/WebFloatSize.h"
      9 #include "third_party/WebKit/public/platform/WebGestureCurveTarget.h"
     10 
     11 WebGestureCurveMock::WebGestureCurveMock(const blink::WebFloatPoint& velocity,
     12     const blink::WebSize& cumulative_scroll)
     13     : velocity_(velocity),
     14       cumulative_scroll_(cumulative_scroll) {
     15 }
     16 
     17 WebGestureCurveMock::~WebGestureCurveMock() {
     18 }
     19 
     20 bool WebGestureCurveMock::apply(double time,
     21                                 blink::WebGestureCurveTarget* target) {
     22   blink::WebSize displacement(velocity_.x * time, velocity_.y * time);
     23   blink::WebFloatSize increment(displacement.width - cumulative_scroll_.width,
     24       displacement.height - cumulative_scroll_.height);
     25   cumulative_scroll_ = displacement;
     26   blink::WebFloatSize velocity(velocity_.x, velocity_.y);
     27   // scrollBy() could delete this curve if the animation is over, so don't
     28   // touch any member variables after making that call.
     29   target->scrollBy(increment, velocity);
     30   return true;
     31 }
     32