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APZCBasicTester.h (4044B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef mozilla_layers_APZCBasicTester_h
      8 #define mozilla_layers_APZCBasicTester_h
      9 
     10 /**
     11 * Defines a test fixture used for testing a single APZC.
     12 */
     13 
     14 #include "APZTestCommon.h"
     15 
     16 #include "mozilla/layers/APZSampler.h"
     17 #include "mozilla/layers/APZUpdater.h"
     18 
     19 class APZCBasicTester : public APZCTesterBase {
     20 public:
     21  explicit APZCBasicTester(
     22      AsyncPanZoomController::GestureBehavior aGestureBehavior =
     23          AsyncPanZoomController::DEFAULT_GESTURES)
     24      : mGestureBehavior(aGestureBehavior) {}
     25 
     26 protected:
     27  virtual void SetUp() {
     28    APZCTesterBase::SetUp();
     29    APZThreadUtils::SetThreadAssertionsEnabled(false);
     30    APZThreadUtils::SetControllerThread(NS_GetCurrentThread());
     31 
     32    tm = CreateTreeManager();
     33    updater = new APZUpdater(tm, false);
     34    sampler = new APZSampler(tm, false);
     35    apzc =
     36        new TestAsyncPanZoomController(LayersId{0}, mcc, tm, mGestureBehavior);
     37    apzc->SetFrameMetrics(TestFrameMetrics());
     38    apzc->GetScrollMetadata().SetIsLayersIdRoot(true);
     39    // Since we're working with just one APZC, make it the root-content one.
     40    // Tests that want to test the behaviour of a non-root-content APZC
     41    // generally want to do so in a context where it has a root-content
     42    // ancestor, and so would use APZCTreeManagerTester.
     43    // Note that some tests overwrite the initial FrameMetrics; such tests
     44    // still need to take care that the root-content flag is set on the new
     45    // FrameMetrics they set (if they care about root-content behaviours like
     46    // zooming).
     47    apzc->GetFrameMetrics().SetIsRootContent(true);
     48  }
     49 
     50  /**
     51   * Get the APZC's scroll range in CSS pixels.
     52   */
     53  CSSRect GetScrollRange() const {
     54    const FrameMetrics& metrics = apzc->GetFrameMetrics();
     55    return CSSRect(metrics.GetScrollableRect().TopLeft(),
     56                   metrics.GetScrollableRect().Size() -
     57                       metrics.CalculateCompositedSizeInCssPixels());
     58  }
     59 
     60  virtual TestAPZCTreeManager* CreateTreeManager() {
     61    return new TestAPZCTreeManager(mcc);
     62  }
     63 
     64  virtual void TearDown() {
     65    while (mcc->RunThroughDelayedTasks());
     66    apzc->Destroy();
     67    tm->ClearTree();
     68    tm->ClearContentController();
     69 
     70    APZCTesterBase::TearDown();
     71  }
     72 
     73  void MakeApzcWaitForMainThread() { apzc->SetWaitForMainThread(); }
     74 
     75  void MakeApzcZoomable() {
     76    MOZ_ASSERT(apzc->GetFrameMetrics().IsRootContent());
     77    apzc->UpdateZoomConstraints(ZoomConstraints(
     78        true, true, CSSToParentLayerScale(0.25f), CSSToParentLayerScale(4.0f)));
     79  }
     80 
     81  void MakeApzcUnzoomable() {
     82    apzc->UpdateZoomConstraints(ZoomConstraints(false, false,
     83                                                CSSToParentLayerScale(1.0f),
     84                                                CSSToParentLayerScale(1.0f)));
     85  }
     86 
     87  /**
     88   * Sample animations once, 1 ms later than the last sample.
     89   */
     90  bool SampleAnimationOnce() {
     91    const TimeDuration increment = TimeDuration::FromMilliseconds(1);
     92    ParentLayerPoint pointOut;
     93    AsyncTransform viewTransformOut;
     94    mcc->AdvanceBy(increment);
     95    return apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
     96  }
     97  /**
     98   * Sample animations one frame, 17 ms later than the last sample.
     99   */
    100  bool SampleAnimationOneFrame() {
    101    const TimeDuration increment = TimeDuration::FromMilliseconds(17);
    102    ParentLayerPoint pointOut;
    103    AsyncTransform viewTransformOut;
    104    mcc->AdvanceBy(increment);
    105    return apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
    106  }
    107 
    108  AsyncPanZoomController::GestureBehavior mGestureBehavior;
    109  RefPtr<TestAPZCTreeManager> tm;
    110  RefPtr<APZSampler> sampler;
    111  RefPtr<APZUpdater> updater;
    112  RefPtr<TestAsyncPanZoomController> apzc;
    113 };
    114 
    115 #endif  // mozilla_layers_APZCBasicTester_h