blob: 5757793df161c468c30fb36ba5e95733bd1ad036 [file] [log] [blame]
// 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