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// Copyright 2015 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 "chrome/browser/chromeos/accessibility/spoken_feedback_event_rewriter.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "base/macros.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/events/event.h"
#include "ui/events/event_constants.h"
#include "ui/events/keycodes/keyboard_codes.h"
#include "ui/events/test/event_generator.h"
// Records all key events.
class EventCapturer : public ui::EventHandler {
public:
EventCapturer() {}
~EventCapturer() override {}
void Reset() { events_.clear(); }
void OnEvent(ui::Event* event) override {
if (event->IsKeyEvent())
events_.push_back(new ui::KeyEvent(static_cast<ui::KeyEvent&>(*event)));
}
const ScopedVector<ui::KeyEvent>& captured_events() const { return events_; }
private:
ScopedVector<ui::KeyEvent> events_;
DISALLOW_COPY_AND_ASSIGN(EventCapturer);
};
class TestDelegate : public SpokenFeedbackEventRewriterDelegate {
public:
TestDelegate()
: is_spoken_feedback_enabled_(false), dispatch_result_(false) {}
~TestDelegate() override {}
void set_is_spoken_feedback_enabled(bool enabled) {
is_spoken_feedback_enabled_ = enabled;
}
void set_dispatch_result(bool result) { dispatch_result_ = result; }
private:
// SpokenFeedbackEventRewriterDelegate:
bool IsSpokenFeedbackEnabled() const override {
return is_spoken_feedback_enabled_;
}
bool DispatchKeyEventToChromeVox(const ui::KeyEvent& key_event,
bool capture) override {
return dispatch_result_;
}
bool is_spoken_feedback_enabled_;
bool dispatch_result_;
DISALLOW_COPY_AND_ASSIGN(TestDelegate);
};
class SpokenFeedbackEventRewriterTest : public ash::test::AshTestBase {
public:
SpokenFeedbackEventRewriterTest()
: generator_(nullptr),
spoken_feedback_event_rewriter_(new SpokenFeedbackEventRewriter()) {
delegate_ = new TestDelegate();
spoken_feedback_event_rewriter_->SetDelegateForTest(
scoped_ptr<TestDelegate>(delegate_));
}
void SetUp() override {
ash::test::AshTestBase::SetUp();
generator_ = &AshTestBase::GetEventGenerator();
CurrentContext()->AddPreTargetHandler(&event_capturer_);
CurrentContext()->GetHost()->GetEventSource()->AddEventRewriter(
spoken_feedback_event_rewriter_.get());
}
void TearDown() override {
CurrentContext()->GetHost()->GetEventSource()->RemoveEventRewriter(
spoken_feedback_event_rewriter_.get());
CurrentContext()->RemovePreTargetHandler(&event_capturer_);
generator_ = nullptr;
ash::test::AshTestBase::TearDown();
}
protected:
TestDelegate* delegate_;
ui::test::EventGenerator* generator_;
EventCapturer event_capturer_;
private:
scoped_ptr<SpokenFeedbackEventRewriter> spoken_feedback_event_rewriter_;
DISALLOW_COPY_AND_ASSIGN(SpokenFeedbackEventRewriterTest);
};
TEST_F(SpokenFeedbackEventRewriterTest, KeysNotEatenWithChromeVoxDisabled) {
// Send Search+Shift+Right.
generator_->PressKey(ui::VKEY_LWIN, ui::EF_COMMAND_DOWN);
ASSERT_EQ(1U, event_capturer_.captured_events().size());
generator_->PressKey(ui::VKEY_SHIFT, ui::EF_COMMAND_DOWN | ui::EF_SHIFT_DOWN);
ASSERT_EQ(2U, event_capturer_.captured_events().size());
// Mock successful commands lookup and dispatch; shouldn't matter either way.
delegate_->set_dispatch_result(true);
generator_->PressKey(ui::VKEY_RIGHT, ui::EF_COMMAND_DOWN | ui::EF_SHIFT_DOWN);
ASSERT_EQ(3U, event_capturer_.captured_events().size());
// Released keys shouldn't get eaten.
delegate_->set_dispatch_result(false);
generator_->ReleaseKey(ui::VKEY_RIGHT,
ui::EF_COMMAND_DOWN | ui::EF_SHIFT_DOWN);
generator_->ReleaseKey(ui::VKEY_SHIFT, ui::EF_COMMAND_DOWN);
generator_->ReleaseKey(ui::VKEY_LWIN, 0);
ASSERT_EQ(6U, event_capturer_.captured_events().size());
// Try releasing more keys.
generator_->ReleaseKey(ui::VKEY_RIGHT, 0);
generator_->ReleaseKey(ui::VKEY_SHIFT, 0);
generator_->ReleaseKey(ui::VKEY_LWIN, 0);
ASSERT_EQ(9U, event_capturer_.captured_events().size());
}
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