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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/events/prerewritten_event_forwarder.h"
#include <memory>
#include "ash/test/ash_test_base.h"
#include "ui/base/ui_base_features.h"
#include "ui/events/event.h"
#include "ui/events/test/test_event_rewriter_continuation.h"
namespace ash {
namespace {
class TestEventRewriterContinuation
: public ui::test::TestEventRewriterContinuation {
public:
TestEventRewriterContinuation() = default;
TestEventRewriterContinuation(const TestEventRewriterContinuation&) = delete;
TestEventRewriterContinuation& operator=(
const TestEventRewriterContinuation&) = delete;
~TestEventRewriterContinuation() override = default;
ui::EventDispatchDetails SendEvent(const ui::Event* event) override {
passthrough_event_ = event->Clone();
return ui::EventDispatchDetails();
}
ui::EventDispatchDetails SendEventFinally(const ui::Event* event) override {
rewritten_event_ = event->Clone();
return ui::EventDispatchDetails();
}
ui::EventDispatchDetails DiscardEvent() override {
return ui::EventDispatchDetails();
}
void Reset() {
passthrough_event_.reset();
rewritten_event_.reset();
}
bool discarded() { return !(passthrough_event_ || rewritten_event_); }
std::unique_ptr<ui::Event> passthrough_event_;
std::unique_ptr<ui::Event> rewritten_event_;
base::WeakPtrFactory<TestEventRewriterContinuation> weak_ptr_factory_{this};
};
class TestKeyObserver : public PrerewrittenEventForwarder::Observer {
public:
TestKeyObserver()
: key_event_(ui::EventType::kUnknown, ui::VKEY_UNKNOWN, ui::EF_NONE) {}
void OnPrerewriteKeyInputEvent(const ui::KeyEvent& key_event) override {
key_event_ = key_event;
}
ui::KeyEvent last_observed_key_event() { return key_event_; }
private:
ui::KeyEvent key_event_;
};
bool AreKeyEventsEqual(const ui::KeyEvent& lhs, const ui::KeyEvent& rhs) {
return lhs.key_code() == rhs.key_code() && lhs.flags() == rhs.flags() &&
lhs.type() == rhs.type();
}
} // namespace
class PrerewrittenEventForwarderTest : public AshTestBase {
public:
PrerewrittenEventForwarderTest() = default;
PrerewrittenEventForwarderTest(const PrerewrittenEventForwarderTest&) =
delete;
PrerewrittenEventForwarderTest& operator=(
const PrerewrittenEventForwarderTest&) = delete;
~PrerewrittenEventForwarderTest() override = default;
// testing::Test:
void SetUp() override {
AshTestBase::SetUp();
observer_ = std::make_unique<TestKeyObserver>();
rewriter_ = std::make_unique<PrerewrittenEventForwarder>();
rewriter_->AddObserver(observer_.get());
}
void TearDown() override {
rewriter_->RemoveObserver(observer_.get());
rewriter_.reset();
observer_.reset();
AshTestBase::TearDown();
}
protected:
std::unique_ptr<TestKeyObserver> observer_;
std::unique_ptr<PrerewrittenEventForwarder> rewriter_;
};
TEST_F(PrerewrittenEventForwarderTest, InitializationTest) {
EXPECT_NE(rewriter_.get(), nullptr);
}
TEST_F(PrerewrittenEventForwarderTest, RawKeyEventObserverCalled) {
TestEventRewriterContinuation continuation;
const ui::KeyEvent expected_key_event(ui::EventType::kKeyPressed, ui::VKEY_A,
/*flags=*/0);
rewriter_->RewriteEvent(expected_key_event,
continuation.weak_ptr_factory_.GetWeakPtr());
EXPECT_FALSE(continuation.discarded());
EXPECT_TRUE(AreKeyEventsEqual(expected_key_event,
observer_->last_observed_key_event()));
continuation.Reset();
const ui::KeyEvent expected_key_event_2(ui::EventType::kKeyReleased,
ui::VKEY_B, ui::EF_COMMAND_DOWN);
rewriter_->RewriteEvent(expected_key_event_2,
continuation.weak_ptr_factory_.GetWeakPtr());
EXPECT_FALSE(continuation.discarded());
EXPECT_TRUE(AreKeyEventsEqual(expected_key_event_2,
observer_->last_observed_key_event()));
}
TEST_F(PrerewrittenEventForwarderTest, IgnoreRepeatKeyEvents) {
TestEventRewriterContinuation continuation;
const ui::KeyEvent expected_key_event(ui::EventType::kKeyPressed, ui::VKEY_A,
ui::EF_IS_REPEAT);
rewriter_->RewriteEvent(expected_key_event,
continuation.weak_ptr_factory_.GetWeakPtr());
EXPECT_FALSE(continuation.discarded());
// Expect the event to not have been fired and therefore the last observed
// key event is empty.
const ui::KeyEvent empty_key_event(ui::EventType::kUnknown, ui::VKEY_UNKNOWN,
ui::EF_NONE);
EXPECT_TRUE(
AreKeyEventsEqual(empty_key_event, observer_->last_observed_key_event()));
}
} // namespace ash
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