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-rw-r--r--gfx/layers/apz/test/gtest/TestEventRegions.cpp272
1 files changed, 272 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/gtest/TestEventRegions.cpp b/gfx/layers/apz/test/gtest/TestEventRegions.cpp
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index 000000000..8b3aac348
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+++ b/gfx/layers/apz/test/gtest/TestEventRegions.cpp
@@ -0,0 +1,272 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et tw=80 : */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "APZCTreeManagerTester.h"
+#include "APZTestCommon.h"
+#include "InputUtils.h"
+
+class APZEventRegionsTester : public APZCTreeManagerTester {
+protected:
+ UniquePtr<ScopedLayerTreeRegistration> registration;
+ TestAsyncPanZoomController* rootApzc;
+
+ void CreateEventRegionsLayerTree1() {
+ const char* layerTreeSyntax = "c(tt)";
+ nsIntRegion layerVisibleRegions[] = {
+ nsIntRegion(IntRect(0, 0, 200, 200)), // root
+ nsIntRegion(IntRect(0, 0, 100, 200)), // left half
+ nsIntRegion(IntRect(0, 100, 200, 100)), // bottom half
+ };
+ root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, nullptr, lm, layers);
+ SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID);
+ SetScrollableFrameMetrics(layers[1], FrameMetrics::START_SCROLL_ID + 1);
+ SetScrollableFrameMetrics(layers[2], FrameMetrics::START_SCROLL_ID + 2);
+ SetScrollHandoff(layers[1], root);
+ SetScrollHandoff(layers[2], root);
+
+ // Set up the event regions over a 200x200 area. The root layer has the
+ // whole 200x200 as the hit region; layers[1] has the left half and
+ // layers[2] has the bottom half. The bottom-left 100x100 area is also
+ // in the d-t-c region for both layers[1] and layers[2] (but layers[2] is
+ // on top so it gets the events by default if the main thread doesn't
+ // respond).
+ EventRegions regions(nsIntRegion(IntRect(0, 0, 200, 200)));
+ root->SetEventRegions(regions);
+ regions.mDispatchToContentHitRegion = nsIntRegion(IntRect(0, 100, 100, 100));
+ regions.mHitRegion = nsIntRegion(IntRect(0, 0, 100, 200));
+ layers[1]->SetEventRegions(regions);
+ regions.mHitRegion = nsIntRegion(IntRect(0, 100, 200, 100));
+ layers[2]->SetEventRegions(regions);
+
+ registration = MakeUnique<ScopedLayerTreeRegistration>(manager, 0, root, mcc);
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+ rootApzc = ApzcOf(root);
+ }
+
+ void CreateEventRegionsLayerTree2() {
+ const char* layerTreeSyntax = "c(t)";
+ nsIntRegion layerVisibleRegions[] = {
+ nsIntRegion(IntRect(0, 0, 100, 500)),
+ nsIntRegion(IntRect(0, 150, 100, 100)),
+ };
+ root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, nullptr, lm, layers);
+ SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID);
+
+ // Set up the event regions so that the child thebes layer is positioned far
+ // away from the scrolling container layer.
+ EventRegions regions(nsIntRegion(IntRect(0, 0, 100, 100)));
+ root->SetEventRegions(regions);
+ regions.mHitRegion = nsIntRegion(IntRect(0, 150, 100, 100));
+ layers[1]->SetEventRegions(regions);
+
+ registration = MakeUnique<ScopedLayerTreeRegistration>(manager, 0, root, mcc);
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+ rootApzc = ApzcOf(root);
+ }
+
+ void CreateObscuringLayerTree() {
+ const char* layerTreeSyntax = "c(c(t)t)";
+ // LayerID 0 1 2 3
+ // 0 is the root.
+ // 1 is a parent scrollable layer.
+ // 2 is a child scrollable layer.
+ // 3 is the Obscurer, who ruins everything.
+ nsIntRegion layerVisibleRegions[] = {
+ // x coordinates are uninteresting
+ nsIntRegion(IntRect(0, 0, 200, 200)), // [0, 200]
+ nsIntRegion(IntRect(0, 0, 200, 200)), // [0, 200]
+ nsIntRegion(IntRect(0, 100, 200, 50)), // [100, 150]
+ nsIntRegion(IntRect(0, 100, 200, 100)) // [100, 200]
+ };
+ root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, nullptr, lm, layers);
+
+ SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID, CSSRect(0, 0, 200, 200));
+ SetScrollableFrameMetrics(layers[1], FrameMetrics::START_SCROLL_ID + 1, CSSRect(0, 0, 200, 300));
+ SetScrollableFrameMetrics(layers[2], FrameMetrics::START_SCROLL_ID + 2, CSSRect(0, 0, 200, 100));
+ SetScrollHandoff(layers[2], layers[1]);
+ SetScrollHandoff(layers[1], root);
+
+ EventRegions regions(nsIntRegion(IntRect(0, 0, 200, 200)));
+ root->SetEventRegions(regions);
+ regions.mHitRegion = nsIntRegion(IntRect(0, 0, 200, 300));
+ layers[1]->SetEventRegions(regions);
+ regions.mHitRegion = nsIntRegion(IntRect(0, 100, 200, 100));
+ layers[2]->SetEventRegions(regions);
+
+ registration = MakeUnique<ScopedLayerTreeRegistration>(manager, 0, root, mcc);
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+ rootApzc = ApzcOf(root);
+ }
+
+ void CreateBug1119497LayerTree() {
+ const char* layerTreeSyntax = "c(tt)";
+ // LayerID 0 12
+ // 0 is the root and has an APZC
+ // 1 is behind 2 and has an APZC
+ // 2 entirely covers 1 and should take all the input events, but has no APZC
+ // so hits to 2 should go to to the root APZC
+ nsIntRegion layerVisibleRegions[] = {
+ nsIntRegion(IntRect(0, 0, 100, 100)),
+ nsIntRegion(IntRect(0, 0, 100, 100)),
+ nsIntRegion(IntRect(0, 0, 100, 100)),
+ };
+ root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, nullptr, lm, layers);
+
+ SetScrollableFrameMetrics(root, FrameMetrics::START_SCROLL_ID);
+ SetScrollableFrameMetrics(layers[1], FrameMetrics::START_SCROLL_ID + 1);
+
+ registration = MakeUnique<ScopedLayerTreeRegistration>(manager, 0, root, mcc);
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+ }
+
+ void CreateBug1117712LayerTree() {
+ const char* layerTreeSyntax = "c(c(t)t)";
+ // LayerID 0 1 2 3
+ // 0 is the root
+ // 1 is a container layer whose sole purpose to make a non-empty ancestor
+ // transform for 2, so that 2's screen-to-apzc and apzc-to-gecko
+ // transforms are different from 3's.
+ // 2 is a small layer that is the actual target
+ // 3 is a big layer obscuring 2 with a dispatch-to-content region
+ nsIntRegion layerVisibleRegions[] = {
+ nsIntRegion(IntRect(0, 0, 100, 100)),
+ nsIntRegion(IntRect(0, 0, 0, 0)),
+ nsIntRegion(IntRect(0, 0, 10, 10)),
+ nsIntRegion(IntRect(0, 0, 100, 100)),
+ };
+ Matrix4x4 layerTransforms[] = {
+ Matrix4x4(),
+ Matrix4x4::Translation(50, 0, 0),
+ Matrix4x4(),
+ Matrix4x4(),
+ };
+ root = CreateLayerTree(layerTreeSyntax, layerVisibleRegions, layerTransforms, lm, layers);
+
+ SetScrollableFrameMetrics(layers[2], FrameMetrics::START_SCROLL_ID, CSSRect(0, 0, 10, 10));
+ SetScrollableFrameMetrics(layers[3], FrameMetrics::START_SCROLL_ID + 1, CSSRect(0, 0, 100, 100));
+ SetScrollHandoff(layers[3], layers[2]);
+
+ EventRegions regions(nsIntRegion(IntRect(0, 0, 10, 10)));
+ layers[2]->SetEventRegions(regions);
+ regions.mHitRegion = nsIntRegion(IntRect(0, 0, 100, 100));
+ regions.mDispatchToContentHitRegion = nsIntRegion(IntRect(0, 0, 100, 100));
+ layers[3]->SetEventRegions(regions);
+
+ registration = MakeUnique<ScopedLayerTreeRegistration>(manager, 0, root, mcc);
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+ }
+};
+
+TEST_F(APZEventRegionsTester, HitRegionImmediateResponse) {
+ CreateEventRegionsLayerTree1();
+
+ TestAsyncPanZoomController* root = ApzcOf(layers[0]);
+ TestAsyncPanZoomController* left = ApzcOf(layers[1]);
+ TestAsyncPanZoomController* bottom = ApzcOf(layers[2]);
+
+ MockFunction<void(std::string checkPointName)> check;
+ {
+ InSequence s;
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, left->GetGuid(), _)).Times(1);
+ EXPECT_CALL(check, Call("Tapped on left"));
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, bottom->GetGuid(), _)).Times(1);
+ EXPECT_CALL(check, Call("Tapped on bottom"));
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, root->GetGuid(), _)).Times(1);
+ EXPECT_CALL(check, Call("Tapped on root"));
+ EXPECT_CALL(check, Call("Tap pending on d-t-c region"));
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, bottom->GetGuid(), _)).Times(1);
+ EXPECT_CALL(check, Call("Tapped on bottom again"));
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, left->GetGuid(), _)).Times(1);
+ EXPECT_CALL(check, Call("Tapped on left this time"));
+ }
+
+ TimeDuration tapDuration = TimeDuration::FromMilliseconds(100);
+
+ // Tap in the exposed hit regions of each of the layers once and ensure
+ // the clicks are dispatched right away
+ Tap(manager, ScreenIntPoint(10, 10), tapDuration);
+ mcc->RunThroughDelayedTasks(); // this runs the tap event
+ check.Call("Tapped on left");
+ Tap(manager, ScreenIntPoint(110, 110), tapDuration);
+ mcc->RunThroughDelayedTasks(); // this runs the tap event
+ check.Call("Tapped on bottom");
+ Tap(manager, ScreenIntPoint(110, 10), tapDuration);
+ mcc->RunThroughDelayedTasks(); // this runs the tap event
+ check.Call("Tapped on root");
+
+ // Now tap on the dispatch-to-content region where the layers overlap
+ Tap(manager, ScreenIntPoint(10, 110), tapDuration);
+ mcc->RunThroughDelayedTasks(); // this runs the main-thread timeout
+ check.Call("Tap pending on d-t-c region");
+ mcc->RunThroughDelayedTasks(); // this runs the tap event
+ check.Call("Tapped on bottom again");
+
+ // Now let's do that again, but simulate a main-thread response
+ uint64_t inputBlockId = 0;
+ Tap(manager, ScreenIntPoint(10, 110), tapDuration, nullptr, &inputBlockId);
+ nsTArray<ScrollableLayerGuid> targets;
+ targets.AppendElement(left->GetGuid());
+ manager->SetTargetAPZC(inputBlockId, targets);
+ while (mcc->RunThroughDelayedTasks()); // this runs the tap event
+ check.Call("Tapped on left this time");
+}
+
+TEST_F(APZEventRegionsTester, HitRegionAccumulatesChildren) {
+ CreateEventRegionsLayerTree2();
+
+ // Tap in the area of the child layer that's not directly included in the
+ // parent layer's hit region. Verify that it comes out of the APZC's
+ // content controller, which indicates the input events got routed correctly
+ // to the APZC.
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, _, _, rootApzc->GetGuid(), _)).Times(1);
+ Tap(manager, ScreenIntPoint(10, 160), TimeDuration::FromMilliseconds(100));
+}
+
+TEST_F(APZEventRegionsTester, Obscuration) {
+ CreateObscuringLayerTree();
+ ScopedLayerTreeRegistration registration(manager, 0, root, mcc);
+
+ manager->UpdateHitTestingTree(0, root, false, 0, 0);
+
+ TestAsyncPanZoomController* parent = ApzcOf(layers[1]);
+ TestAsyncPanZoomController* child = ApzcOf(layers[2]);
+
+ ApzcPanNoFling(parent, 75, 25);
+
+ HitTestResult result;
+ RefPtr<AsyncPanZoomController> hit = manager->GetTargetAPZC(ScreenPoint(50, 75), &result);
+ EXPECT_EQ(child, hit.get());
+ EXPECT_EQ(HitTestResult::HitLayer, result);
+}
+
+TEST_F(APZEventRegionsTester, Bug1119497) {
+ CreateBug1119497LayerTree();
+
+ HitTestResult result;
+ RefPtr<AsyncPanZoomController> hit = manager->GetTargetAPZC(ScreenPoint(50, 50), &result);
+ // We should hit layers[2], so |result| will be HitLayer but there's no
+ // actual APZC on layers[2], so it will be the APZC of the root layer.
+ EXPECT_EQ(ApzcOf(layers[0]), hit.get());
+ EXPECT_EQ(HitTestResult::HitLayer, result);
+}
+
+TEST_F(APZEventRegionsTester, Bug1117712) {
+ CreateBug1117712LayerTree();
+
+ TestAsyncPanZoomController* apzc2 = ApzcOf(layers[2]);
+
+ // These touch events should hit the dispatch-to-content region of layers[3]
+ // and so get queued with that APZC as the tentative target.
+ uint64_t inputBlockId = 0;
+ Tap(manager, ScreenIntPoint(55, 5), TimeDuration::FromMilliseconds(100), nullptr, &inputBlockId);
+ // But now we tell the APZ that really it hit layers[2], and expect the tap
+ // to be delivered at the correct coordinates.
+ EXPECT_CALL(*mcc, HandleTap(TapType::eSingleTap, LayoutDevicePoint(55, 5), 0, apzc2->GetGuid(), _)).Times(1);
+
+ nsTArray<ScrollableLayerGuid> targets;
+ targets.AppendElement(apzc2->GetGuid());
+ manager->SetTargetAPZC(inputBlockId, targets);
+}
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