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// Copyright 2013 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/keyboard_driven_event_rewriter.h"
#include "ash/keyboard/keyboard_util.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shell.h"
#include "base/types/cxx23_to_underlying.h"
#include "ui/events/ash/event_rewriter_ash.h"
#include "ui/events/event.h"
#include "ui/events/event_utils.h"
namespace ash {
KeyboardDrivenEventRewriter::KeyboardDrivenEventRewriter() = default;
KeyboardDrivenEventRewriter::~KeyboardDrivenEventRewriter() = default;
ui::EventDispatchDetails KeyboardDrivenEventRewriter::RewriteForTesting(
const ui::Event& event,
const Continuation continuation) {
return Rewrite(event, continuation);
}
ui::EventDispatchDetails KeyboardDrivenEventRewriter::RewriteEvent(
const ui::Event& event,
const Continuation continuation) {
if (!enabled_ ||
Shell::Get()->session_controller()->IsActiveUserSessionStarted()) {
return SendEvent(continuation, &event);
}
return Rewrite(event, continuation);
}
ui::EventDispatchDetails KeyboardDrivenEventRewriter::Rewrite(
const ui::Event& event,
const Continuation continuation) {
int flags = event.flags();
const int kModifierMask = ui::EF_SHIFT_DOWN;
if ((flags & kModifierMask) != kModifierMask)
return SendEvent(continuation, &event);
DCHECK(event.type() == ui::EventType::kKeyPressed ||
event.type() == ui::EventType::kKeyReleased)
<< "Unexpected event type " << base::to_underlying(event.type());
const ui::KeyEvent& key_event = static_cast<const ui::KeyEvent&>(event);
ui::KeyboardCode key_code = key_event.key_code();
if (!keyboard_util::IsArrowKeyCode(key_code) && key_code != ui::VKEY_RETURN &&
key_code != ui::VKEY_F6) {
return SendEvent(continuation, &event);
}
ui::EventRewriterAsh::MutableKeyState state = {
flags & ~(ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN),
key_event.code(), key_event.GetDomKey(), key_event.key_code()};
if (arrow_to_tab_rewriting_enabled_) {
if (keyboard_util::IsArrowKeyCode(key_code)) {
const ui::KeyEvent tab_event(ui::EventType::kKeyPressed, ui::VKEY_TAB,
ui::EF_NONE);
state.code = tab_event.code();
state.key = tab_event.GetDomKey();
state.key_code = tab_event.key_code();
if (key_code == ui::VKEY_LEFT || key_code == ui::VKEY_UP)
state.flags |= ui::EF_SHIFT_DOWN;
}
}
std::unique_ptr<ui::Event> rewritten_event;
ui::EventRewriterAsh::BuildRewrittenKeyEvent(key_event, state,
&rewritten_event);
return SendEventFinally(continuation, rewritten_event.get());
}
} // namespace ash
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