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// Copyright 2017 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/aura/mus/drag_drop_controller_mus.h"
#include <memory>
#include "base/callback_forward.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task_scheduler/post_task.h"
#include "base/threading/thread_task_runner_handle.h"
#include "ui/aura/client/drag_drop_client_observer.h"
#include "ui/aura/client/drag_drop_delegate.h"
#include "ui/aura/mus/drag_drop_controller_host.h"
#include "ui/aura/mus/window_mus.h"
#include "ui/aura/test/aura_mus_test_base.h"
#include "ui/aura/test/mus/test_window_tree.h"
#include "ui/base/dragdrop/drop_target_event.h"
#include "ui/events/event_utils.h"
namespace aura {
namespace {
class DragDropControllerMusTest : public test::AuraMusWmTestBase {
public:
DragDropControllerMusTest() = default;
// test::AuraMusWmTestBase
void SetUp() override {
AuraMusWmTestBase::SetUp();
controller_ = std::make_unique<DragDropControllerMus>(&controller_host_,
window_tree());
window_ = std::unique_ptr<aura::Window>(
CreateNormalWindow(0, root_window(), nullptr));
}
void TearDown() override {
window_.reset();
controller_.reset();
AuraMusWmTestBase::TearDown();
}
protected:
void PostDragMoveAndDrop() {
// Posted task will be run when the inner loop runs in StartDragAndDrop.
ASSERT_TRUE(base::ThreadTaskRunnerHandle::IsSet());
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(&DragDropControllerMusTest::DragMoveAndDrop,
base::Unretained(this)));
}
void StartDragAndDrop() {
controller_->StartDragAndDrop(
ui::OSExchangeData(), window_->GetRootWindow(), window_.get(),
gfx::Point(5, 5), ui::DragDropTypes::DRAG_MOVE,
ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE);
}
std::unique_ptr<DragDropControllerMus> controller_;
std::unique_ptr<aura::Window> window_;
private:
void DragMoveAndDrop() {
WindowMus* const window_mus = WindowMus::Get(window_.get());
controller_->OnDragEnter(window_mus, 0, gfx::Point(5, 20), 0);
controller_->OnDragOver(window_mus, 0, gfx::Point(5, 20), 0);
controller_->OnCompleteDrop(window_mus, 0, gfx::Point(5, 20), 0);
controller_->OnPerformDragDropCompleted(0);
}
class TestDragDropControllerHost : public DragDropControllerHost {
public:
TestDragDropControllerHost() : serial_(0u) {}
// DragDropControllerHost
uint32_t CreateChangeIdForDrag(WindowMus* window) override {
return serial_++;
}
private:
uint32_t serial_;
} controller_host_;
DISALLOW_COPY_AND_ASSIGN(DragDropControllerMusTest);
};
TEST_F(DragDropControllerMusTest, DragStartedAndEndedEvents) {
enum class State { kNotInvoked, kDragStartInvoked, kDragEndInvoked };
class TestObserver : public client::DragDropClientObserver {
public:
TestObserver() = default;
State state() const { return state_; }
// Overrides from client::DragDropClientObserver:
void OnDragStarted() override {
EXPECT_EQ(State::kNotInvoked, state_);
state_ = State::kDragStartInvoked;
}
void OnDragEnded() override {
EXPECT_EQ(State::kDragStartInvoked, state_);
state_ = State::kDragEndInvoked;
}
private:
State state_{State::kNotInvoked};
DISALLOW_COPY_AND_ASSIGN(TestObserver);
} observer;
controller_->AddObserver(&observer);
PostDragMoveAndDrop();
StartDragAndDrop();
EXPECT_EQ(State::kDragEndInvoked, observer.state());
controller_->RemoveObserver(&observer);
}
TEST_F(DragDropControllerMusTest, EventTarget) {
enum class State {
kNotInvoked,
kDragEnteredInvoked,
kDragUpdateInvoked,
kPerformDropInvoked
};
class TestDelegate : public client::DragDropDelegate {
public:
TestDelegate(aura::Window* window) : window_(window) {}
State state() const { return state_; }
// Overrides from client::DragDropClientObserver:
void OnDragEntered(const ui::DropTargetEvent& event) override {
EXPECT_EQ(State::kNotInvoked, state_);
EXPECT_EQ(window_, event.target());
state_ = State::kDragEnteredInvoked;
}
int OnDragUpdated(const ui::DropTargetEvent& event) override {
EXPECT_TRUE(State::kDragEnteredInvoked == state_ ||
State::kDragUpdateInvoked == state_);
EXPECT_EQ(window_, event.target());
state_ = State::kDragUpdateInvoked;
return ui::DragDropTypes::DRAG_MOVE;
}
void OnDragExited() override { ADD_FAILURE(); }
int OnPerformDrop(const ui::DropTargetEvent& event) override {
EXPECT_EQ(State::kDragUpdateInvoked, state_);
EXPECT_EQ(window_, event.target());
state_ = State::kPerformDropInvoked;
return ui::DragDropTypes::DRAG_MOVE;
}
private:
aura::Window* const window_;
State state_{State::kNotInvoked};
DISALLOW_COPY_AND_ASSIGN(TestDelegate);
} delegate(window_.get());
client::SetDragDropDelegate(window_.get(), &delegate);
PostDragMoveAndDrop();
StartDragAndDrop();
EXPECT_EQ(State::kPerformDropInvoked, delegate.state());
client::SetDragDropDelegate(window_.get(), nullptr);
}
} // namespace
} // namespace aura
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