cc/ScrollbarLayerChromiumTest.cpp

   1 // Copyright 2012 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 "config.h"
   6
   7 #include "ScrollbarLayerChromium.h"
   8
   9 #include "CCScrollbarAnimationController.h"
  10 #include "CCScrollbarLayerImpl.h"
  11 #include "CCSingleThreadProxy.h"
  12 #include "FakeWebScrollbarThemeGeometry.h"
  13 #include "TreeSynchronizer.h"
  14 #include "testing/gtest/include/gtest/gtest.h"
  15 #include <public/WebScrollbar.h>
  16 #include <public/WebScrollbarThemeGeometry.h>
  17 #include <public/WebScrollbarThemePainter.h>
  18
  19 using namespace cc;
  20
  21 namespace {
  22
  23 class FakeWebScrollbar : public WebKit::WebScrollbar {
  24 public:
  25     static PassOwnPtr<FakeWebScrollbar> create() { return adoptPtr(new FakeWebScrollbar()); }
  26
  27     // WebScrollbar implementation
  28     virtual bool isOverlay() const OVERRIDE { return false; }
  29     virtual int value() const OVERRIDE { return 0; }
  30     virtual WebKit::WebPoint location() const OVERRIDE { return WebKit::WebPoint(); }
  31     virtual WebKit::WebSize size() const OVERRIDE { return WebKit::WebSize(); }
  32     virtual bool enabled() const OVERRIDE { return true; }
  33     virtual int maximum() const OVERRIDE { return 0; }
  34     virtual int totalSize() const OVERRIDE { return 0; }
  35     virtual bool isScrollViewScrollbar() const OVERRIDE { return false; }
  36     virtual bool isScrollableAreaActive() const OVERRIDE { return true; }
  37     virtual void getTickmarks(WebKit::WebVector<WebKit::WebRect>&) const OVERRIDE { }
  38     virtual ScrollbarControlSize controlSize() const OVERRIDE { return WebScrollbar::RegularScrollbar; }
  39     virtual ScrollbarPart pressedPart() const OVERRIDE { return WebScrollbar::NoPart; }
  40     virtual ScrollbarPart hoveredPart() const OVERRIDE { return WebScrollbar::NoPart; }
  41     virtual ScrollbarOverlayStyle scrollbarOverlayStyle() const OVERRIDE { return WebScrollbar::ScrollbarOverlayStyleDefault; }
  42     virtual bool isCustomScrollbar() const OVERRIDE { return false; }
  43     virtual Orientation orientation() const OVERRIDE { return WebScrollbar::Horizontal; }
  44 };
  45
  46 TEST(ScrollbarLayerChromiumTest, resolveScrollLayerPointer)
  47 {
  48     DebugScopedSetImplThread impl;
  49
  50     WebKit::WebScrollbarThemePainter painter;
  51
  52     {
  53         OwnPtr<WebKit::WebScrollbar> scrollbar(FakeWebScrollbar::create());
  54         scoped_refptr<LayerChromium> layerTreeRoot = LayerChromium::create();
  55         scoped_refptr<LayerChromium> child1 = LayerChromium::create();
  56         scoped_refptr<LayerChromium> child2 = ScrollbarLayerChromium::create(scrollbar.release(), painter, WebKit::FakeWebScrollbarThemeGeometry::create(), child1->id());
  57         layerTreeRoot->addChild(child1);
  58         layerTreeRoot->addChild(child2);
  59
  60         OwnPtr<CCLayerImpl> ccLayerTreeRoot = TreeSynchronizer::synchronizeTrees(layerTreeRoot.get(), nullptr, 0);
  61
  62         CCLayerImpl* ccChild1 = ccLayerTreeRoot->children()[0];
  63         CCScrollbarLayerImpl* ccChild2 = static_cast<CCScrollbarLayerImpl*>(ccLayerTreeRoot->children()[1]);
  64
  65         EXPECT_TRUE(ccChild1->scrollbarAnimationController());
  66         EXPECT_EQ(ccChild1->horizontalScrollbarLayer(), ccChild2);
  67     }
  68
  69     { // another traverse order
  70         OwnPtr<WebKit::WebScrollbar> scrollbar(FakeWebScrollbar::create());
  71         scoped_refptr<LayerChromium> layerTreeRoot = LayerChromium::create();
  72         scoped_refptr<LayerChromium> child2 = LayerChromium::create();
  73         scoped_refptr<LayerChromium> child1 = ScrollbarLayerChromium::create(scrollbar.release(), painter, WebKit::FakeWebScrollbarThemeGeometry::create(), child2->id());
  74         layerTreeRoot->addChild(child1);
  75         layerTreeRoot->addChild(child2);
  76
  77         OwnPtr<CCLayerImpl> ccLayerTreeRoot = TreeSynchronizer::synchronizeTrees(layerTreeRoot.get(), nullptr, 0);
  78
  79         CCScrollbarLayerImpl* ccChild1 = static_cast<CCScrollbarLayerImpl*>(ccLayerTreeRoot->children()[0]);
  80         CCLayerImpl* ccChild2 = ccLayerTreeRoot->children()[1];
  81
  82         EXPECT_TRUE(ccChild2->scrollbarAnimationController());
  83         EXPECT_EQ(ccChild2->horizontalScrollbarLayer(), ccChild1);
  84     }
  85 }
  86
  87 TEST(ScrollbarLayerChromiumTest, scrollOffsetSynchronization)
  88 {
  89     DebugScopedSetImplThread impl;
  90
  91     WebKit::WebScrollbarThemePainter painter;
  92
  93     OwnPtr<WebKit::WebScrollbar> scrollbar(FakeWebScrollbar::create());
  94     scoped_refptr<LayerChromium> layerTreeRoot = LayerChromium::create();
  95     scoped_refptr<LayerChromium> contentLayer = LayerChromium::create();
  96     scoped_refptr<LayerChromium> scrollbarLayer = ScrollbarLayerChromium::create(scrollbar.release(), painter, WebKit::FakeWebScrollbarThemeGeometry::create(), layerTreeRoot->id());
  97     layerTreeRoot->addChild(contentLayer);
  98     layerTreeRoot->addChild(scrollbarLayer);
  99
 100     layerTreeRoot->setScrollPosition(IntPoint(10, 20));
 101     layerTreeRoot->setMaxScrollPosition(IntSize(30, 50));
 102     contentLayer->setBounds(IntSize(100, 200));
 103
 104     OwnPtr<CCLayerImpl> ccLayerTreeRoot = TreeSynchronizer::synchronizeTrees(layerTreeRoot.get(), nullptr, 0);
 105
 106     CCScrollbarLayerImpl* ccScrollbarLayer = static_cast<CCScrollbarLayerImpl*>(ccLayerTreeRoot->children()[1]);
 107
 108     EXPECT_EQ(10, ccScrollbarLayer->currentPos());
 109     EXPECT_EQ(100, ccScrollbarLayer->totalSize());
 110     EXPECT_EQ(30, ccScrollbarLayer->maximum());
 111
 112     layerTreeRoot->setScrollPosition(IntPoint(100, 200));
 113     layerTreeRoot->setMaxScrollPosition(IntSize(300, 500));
 114     contentLayer->setBounds(IntSize(1000, 2000));
 115
 116     CCScrollbarAnimationController* scrollbarController = ccLayerTreeRoot->scrollbarAnimationController();
 117     ccLayerTreeRoot = TreeSynchronizer::synchronizeTrees(layerTreeRoot.get(), ccLayerTreeRoot.release(), 0);
 118     EXPECT_EQ(scrollbarController, ccLayerTreeRoot->scrollbarAnimationController());
 119
 120     EXPECT_EQ(100, ccScrollbarLayer->currentPos());
 121     EXPECT_EQ(1000, ccScrollbarLayer->totalSize());
 122     EXPECT_EQ(300, ccScrollbarLayer->maximum());
 123
 124     ccLayerTreeRoot->scrollBy(FloatSize(12, 34));
 125
 126     EXPECT_EQ(112, ccScrollbarLayer->currentPos());
 127     EXPECT_EQ(1000, ccScrollbarLayer->totalSize());
 128     EXPECT_EQ(300, ccScrollbarLayer->maximum());
 129 }
 130
 131 }