| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/views/view_targeter.h" |
| |
| #include "ui/events/event_targeter.h" |
| #include "ui/events/event_utils.h" |
| #include "ui/gfx/path.h" |
| #include "ui/views/masked_targeter_delegate.h" |
| #include "ui/views/test/views_test_base.h" |
| #include "ui/views/view_targeter.h" |
| #include "ui/views/view_targeter_delegate.h" |
| #include "ui/views/widget/root_view.h" |
| |
| namespace views { |
| |
| // A derived class of View used for testing purposes. |
| class TestingView : public View, public ViewTargeterDelegate { |
| public: |
| TestingView() : can_process_events_within_subtree_(true) {} |
| virtual ~TestingView() {} |
| |
| // Reset all test state. |
| void Reset() { can_process_events_within_subtree_ = true; } |
| |
| void set_can_process_events_within_subtree(bool can_process) { |
| can_process_events_within_subtree_ = can_process; |
| } |
| |
| // A call-through function to ViewTargeterDelegate::DoesIntersectRect(). |
| bool TestDoesIntersectRect(const View* target, const gfx::Rect& rect) const { |
| return DoesIntersectRect(target, rect); |
| } |
| |
| // View: |
| virtual bool CanProcessEventsWithinSubtree() const OVERRIDE { |
| return can_process_events_within_subtree_; |
| } |
| |
| private: |
| // Value to return from CanProcessEventsWithinSubtree(). |
| bool can_process_events_within_subtree_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TestingView); |
| }; |
| |
| // A derived class of View having a triangular-shaped hit test mask. |
| class TestMaskedView : public View, public MaskedTargeterDelegate { |
| public: |
| TestMaskedView() {} |
| virtual ~TestMaskedView() {} |
| |
| // A call-through function to MaskedTargeterDelegate::DoesIntersectRect(). |
| bool TestDoesIntersectRect(const View* target, const gfx::Rect& rect) const { |
| return DoesIntersectRect(target, rect); |
| } |
| |
| private: |
| // MaskedTargeterDelegate: |
| virtual bool GetHitTestMask(gfx::Path* mask) const OVERRIDE { |
| DCHECK(mask); |
| SkScalar w = SkIntToScalar(width()); |
| SkScalar h = SkIntToScalar(height()); |
| |
| // Create a triangular mask within the bounds of this View. |
| mask->moveTo(w / 2, 0); |
| mask->lineTo(w, h); |
| mask->lineTo(0, h); |
| mask->close(); |
| return true; |
| } |
| |
| DISALLOW_COPY_AND_ASSIGN(TestMaskedView); |
| }; |
| |
| namespace test { |
| |
| typedef ViewsTestBase ViewTargeterTest; |
| |
| namespace { |
| |
| gfx::Point ConvertPointToView(View* view, const gfx::Point& p) { |
| gfx::Point tmp(p); |
| View::ConvertPointToTarget(view->GetWidget()->GetRootView(), view, &tmp); |
| return tmp; |
| } |
| |
| gfx::Rect ConvertRectToView(View* view, const gfx::Rect& r) { |
| gfx::Rect tmp(r); |
| tmp.set_origin(ConvertPointToView(view, r.origin())); |
| return tmp; |
| } |
| |
| } // namespace |
| |
| // Verifies that the the functions ViewTargeter::FindTargetForEvent() |
| // and ViewTargeter::FindNextBestTarget() are implemented correctly |
| // for key events. |
| TEST_F(ViewTargeterTest, ViewTargeterForKeyEvents) { |
| Widget widget; |
| Widget::InitParams init_params = |
| CreateParams(Widget::InitParams::TYPE_POPUP); |
| init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET; |
| widget.Init(init_params); |
| |
| View* content = new View; |
| View* child = new View; |
| View* grandchild = new View; |
| |
| widget.SetContentsView(content); |
| content->AddChildView(child); |
| child->AddChildView(grandchild); |
| |
| grandchild->SetFocusable(true); |
| grandchild->RequestFocus(); |
| |
| internal::RootView* root_view = |
| static_cast<internal::RootView*>(widget.GetRootView()); |
| ViewTargeter* view_targeter = new ViewTargeter(root_view); |
| ui::EventTargeter* targeter = view_targeter; |
| root_view->SetEventTargeter(make_scoped_ptr(view_targeter)); |
| |
| ui::KeyEvent key_event('a', ui::VKEY_A, ui::EF_NONE); |
| |
| // The focused view should be the initial target of the event. |
| ui::EventTarget* current_target = targeter->FindTargetForEvent(root_view, |
| &key_event); |
| EXPECT_EQ(grandchild, static_cast<View*>(current_target)); |
| |
| // Verify that FindNextBestTarget() will return the parent view of the |
| // argument (and NULL if the argument has no parent view). |
| current_target = targeter->FindNextBestTarget(grandchild, &key_event); |
| EXPECT_EQ(child, static_cast<View*>(current_target)); |
| current_target = targeter->FindNextBestTarget(child, &key_event); |
| EXPECT_EQ(content, static_cast<View*>(current_target)); |
| current_target = targeter->FindNextBestTarget(content, &key_event); |
| EXPECT_EQ(widget.GetRootView(), static_cast<View*>(current_target)); |
| current_target = targeter->FindNextBestTarget(widget.GetRootView(), |
| &key_event); |
| EXPECT_EQ(NULL, static_cast<View*>(current_target)); |
| } |
| |
| // Verifies that the the functions ViewTargeter::FindTargetForEvent() |
| // and ViewTargeter::FindNextBestTarget() are implemented correctly |
| // for scroll events. |
| TEST_F(ViewTargeterTest, ViewTargeterForScrollEvents) { |
| Widget widget; |
| Widget::InitParams init_params = |
| CreateParams(Widget::InitParams::TYPE_POPUP); |
| init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET; |
| init_params.bounds = gfx::Rect(0, 0, 200, 200); |
| widget.Init(init_params); |
| |
| // The coordinates used for SetBounds() are in the parent coordinate space. |
| View* content = new View; |
| content->SetBounds(0, 0, 100, 100); |
| View* child = new View; |
| child->SetBounds(50, 50, 20, 20); |
| View* grandchild = new View; |
| grandchild->SetBounds(0, 0, 5, 5); |
| |
| widget.SetContentsView(content); |
| content->AddChildView(child); |
| child->AddChildView(grandchild); |
| |
| internal::RootView* root_view = |
| static_cast<internal::RootView*>(widget.GetRootView()); |
| ViewTargeter* view_targeter = new ViewTargeter(root_view); |
| ui::EventTargeter* targeter = view_targeter; |
| root_view->SetEventTargeter(make_scoped_ptr(view_targeter)); |
| |
| // The event falls within the bounds of |child| and |content| but not |
| // |grandchild|, so |child| should be the initial target for the event. |
| ui::ScrollEvent scroll(ui::ET_SCROLL, |
| gfx::Point(60, 60), |
| ui::EventTimeForNow(), |
| 0, |
| 0, 3, |
| 0, 3, |
| 2); |
| ui::EventTarget* current_target = targeter->FindTargetForEvent(root_view, |
| &scroll); |
| EXPECT_EQ(child, static_cast<View*>(current_target)); |
| |
| // Verify that FindNextBestTarget() will return the parent view of the |
| // argument (and NULL if the argument has no parent view). |
| current_target = targeter->FindNextBestTarget(child, &scroll); |
| EXPECT_EQ(content, static_cast<View*>(current_target)); |
| current_target = targeter->FindNextBestTarget(content, &scroll); |
| EXPECT_EQ(widget.GetRootView(), static_cast<View*>(current_target)); |
| current_target = targeter->FindNextBestTarget(widget.GetRootView(), |
| &scroll); |
| EXPECT_EQ(NULL, static_cast<View*>(current_target)); |
| |
| // The event falls outside of the original specified bounds of |content|, |
| // |child|, and |grandchild|. But since |content| is the contents view, |
| // and contents views are resized to fill the entire area of the root |
| // view, the event's initial target should still be |content|. |
| scroll = ui::ScrollEvent(ui::ET_SCROLL, |
| gfx::Point(150, 150), |
| ui::EventTimeForNow(), |
| 0, |
| 0, 3, |
| 0, 3, |
| 2); |
| current_target = targeter->FindTargetForEvent(root_view, &scroll); |
| EXPECT_EQ(content, static_cast<View*>(current_target)); |
| } |
| |
| // Tests that the functions ViewTargeterDelegate::DoesIntersectRect() |
| // and MaskedTargeterDelegate::DoesIntersectRect() work as intended when |
| // called on views which are derived from ViewTargeterDelegate. |
| // Also verifies that ViewTargeterDelegate::DoesIntersectRect() can |
| // be called from the ViewTargeter installed on RootView. |
| TEST_F(ViewTargeterTest, DoesIntersectRect) { |
| Widget widget; |
| Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_POPUP); |
| params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET; |
| params.bounds = gfx::Rect(0, 0, 650, 650); |
| widget.Init(params); |
| |
| internal::RootView* root_view = |
| static_cast<internal::RootView*>(widget.GetRootView()); |
| ViewTargeter* view_targeter = new ViewTargeter(root_view); |
| root_view->SetEventTargeter(make_scoped_ptr(view_targeter)); |
| |
| // The coordinates used for SetBounds() are in the parent coordinate space. |
| TestingView v2; |
| TestMaskedView v1, v3; |
| v1.SetBounds(0, 0, 200, 200); |
| v2.SetBounds(300, 0, 300, 300); |
| v3.SetBounds(0, 0, 100, 100); |
| root_view->AddChildView(&v1); |
| root_view->AddChildView(&v2); |
| v2.AddChildView(&v3); |
| |
| // The coordinates used below are in the local coordinate space of the |
| // view that is passed in as an argument. |
| |
| // Hit tests against |v1|, which has a hit test mask. |
| EXPECT_TRUE(v1.TestDoesIntersectRect(&v1, gfx::Rect(0, 0, 200, 200))); |
| EXPECT_TRUE(v1.TestDoesIntersectRect(&v1, gfx::Rect(-10, -10, 110, 12))); |
| EXPECT_TRUE(v1.TestDoesIntersectRect(&v1, gfx::Rect(112, 142, 1, 1))); |
| EXPECT_FALSE(v1.TestDoesIntersectRect(&v1, gfx::Rect(0, 0, 20, 20))); |
| EXPECT_FALSE(v1.TestDoesIntersectRect(&v1, gfx::Rect(-10, -10, 90, 12))); |
| EXPECT_FALSE(v1.TestDoesIntersectRect(&v1, gfx::Rect(150, 49, 1, 1))); |
| |
| // Hit tests against |v2|, which does not have a hit test mask. |
| EXPECT_TRUE(v2.TestDoesIntersectRect(&v2, gfx::Rect(0, 0, 200, 200))); |
| EXPECT_TRUE(v2.TestDoesIntersectRect(&v2, gfx::Rect(-10, 250, 60, 60))); |
| EXPECT_TRUE(v2.TestDoesIntersectRect(&v2, gfx::Rect(250, 250, 1, 1))); |
| EXPECT_FALSE(v2.TestDoesIntersectRect(&v2, gfx::Rect(-10, 250, 7, 7))); |
| EXPECT_FALSE(v2.TestDoesIntersectRect(&v2, gfx::Rect(-1, -1, 1, 1))); |
| |
| // Hit tests against |v3|, which has a hit test mask and is a child of |v2|. |
| EXPECT_TRUE(v3.TestDoesIntersectRect(&v3, gfx::Rect(0, 0, 50, 50))); |
| EXPECT_TRUE(v3.TestDoesIntersectRect(&v3, gfx::Rect(90, 90, 1, 1))); |
| EXPECT_FALSE(v3.TestDoesIntersectRect(&v3, gfx::Rect(10, 125, 50, 50))); |
| EXPECT_FALSE(v3.TestDoesIntersectRect(&v3, gfx::Rect(110, 110, 1, 1))); |
| |
| // Verify that hit-testing is performed correctly when using the |
| // call-through function ViewTargeter::DoesIntersectRect(). |
| EXPECT_TRUE(view_targeter->DoesIntersectRect(root_view, |
| gfx::Rect(0, 0, 50, 50))); |
| EXPECT_FALSE(view_targeter->DoesIntersectRect(root_view, |
| gfx::Rect(-20, -20, 10, 10))); |
| } |
| |
| // Tests that calls made directly on the hit-testing methods in View |
| // (HitTestPoint(), HitTestRect(), etc.) return the correct values. |
| TEST_F(ViewTargeterTest, HitTestCallsOnView) { |
| // The coordinates in this test are in the coordinate space of the root view. |
| Widget* widget = new Widget; |
| Widget::InitParams params = CreateParams(Widget::InitParams::TYPE_POPUP); |
| widget->Init(params); |
| View* root_view = widget->GetRootView(); |
| root_view->SetBoundsRect(gfx::Rect(0, 0, 500, 500)); |
| |
| // |v1| has no hit test mask. No ViewTargeter is installed on |v1|, which |
| // means that View::HitTestRect() will call into the targeter installed on |
| // the root view instead when we hit test against |v1|. |
| gfx::Rect v1_bounds = gfx::Rect(0, 0, 100, 100); |
| TestingView* v1 = new TestingView(); |
| v1->SetBoundsRect(v1_bounds); |
| root_view->AddChildView(v1); |
| |
| // |v2| has a triangular hit test mask. Install a ViewTargeter on |v2| which |
| // will be called into by View::HitTestRect(). |
| gfx::Rect v2_bounds = gfx::Rect(105, 0, 100, 100); |
| TestMaskedView* v2 = new TestMaskedView(); |
| v2->SetBoundsRect(v2_bounds); |
| root_view->AddChildView(v2); |
| ViewTargeter* view_targeter = new ViewTargeter(v2); |
| v2->SetEventTargeter(make_scoped_ptr(view_targeter)); |
| |
| gfx::Point v1_centerpoint = v1_bounds.CenterPoint(); |
| gfx::Point v2_centerpoint = v2_bounds.CenterPoint(); |
| gfx::Point v1_origin = v1_bounds.origin(); |
| gfx::Point v2_origin = v2_bounds.origin(); |
| gfx::Rect r1(10, 10, 110, 15); |
| gfx::Rect r2(106, 1, 98, 98); |
| gfx::Rect r3(0, 0, 300, 300); |
| gfx::Rect r4(115, 342, 200, 10); |
| |
| // Test calls into View::HitTestPoint(). |
| EXPECT_TRUE(v1->HitTestPoint(ConvertPointToView(v1, v1_centerpoint))); |
| EXPECT_TRUE(v2->HitTestPoint(ConvertPointToView(v2, v2_centerpoint))); |
| |
| EXPECT_TRUE(v1->HitTestPoint(ConvertPointToView(v1, v1_origin))); |
| EXPECT_FALSE(v2->HitTestPoint(ConvertPointToView(v2, v2_origin))); |
| |
| // Test calls into View::HitTestRect(). |
| EXPECT_TRUE(v1->HitTestRect(ConvertRectToView(v1, r1))); |
| EXPECT_FALSE(v2->HitTestRect(ConvertRectToView(v2, r1))); |
| |
| EXPECT_FALSE(v1->HitTestRect(ConvertRectToView(v1, r2))); |
| EXPECT_TRUE(v2->HitTestRect(ConvertRectToView(v2, r2))); |
| |
| EXPECT_TRUE(v1->HitTestRect(ConvertRectToView(v1, r3))); |
| EXPECT_TRUE(v2->HitTestRect(ConvertRectToView(v2, r3))); |
| |
| EXPECT_FALSE(v1->HitTestRect(ConvertRectToView(v1, r4))); |
| EXPECT_FALSE(v2->HitTestRect(ConvertRectToView(v2, r4))); |
| |
| // Test calls into View::GetEventHandlerForPoint(). |
| EXPECT_EQ(v1, root_view->GetEventHandlerForPoint(v1_centerpoint)); |
| EXPECT_EQ(v2, root_view->GetEventHandlerForPoint(v2_centerpoint)); |
| |
| EXPECT_EQ(v1, root_view->GetEventHandlerForPoint(v1_origin)); |
| EXPECT_EQ(root_view, root_view->GetEventHandlerForPoint(v2_origin)); |
| |
| // Test calls into View::GetTooltipHandlerForPoint(). |
| EXPECT_EQ(v1, root_view->GetTooltipHandlerForPoint(v1_centerpoint)); |
| EXPECT_EQ(v2, root_view->GetTooltipHandlerForPoint(v2_centerpoint)); |
| |
| EXPECT_EQ(v1, root_view->GetTooltipHandlerForPoint(v1_origin)); |
| EXPECT_EQ(root_view, root_view->GetTooltipHandlerForPoint(v2_origin)); |
| |
| EXPECT_FALSE(v1->GetTooltipHandlerForPoint(v2_origin)); |
| |
| widget->CloseNow(); |
| } |
| |
| } // namespace test |
| } // namespace views |