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// Copyright (c) 2012 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 "remoting/protocol/key_event_tracker.h"
#include <sstream>
#include "base/logging.h"
#include "remoting/proto/event.pb.h"
#include "ui/base/keycodes/keyboard_codes.h"
namespace remoting {
namespace protocol {
KeyEventTracker::KeyEventTracker(InputStub* input_stub)
: input_stub_(input_stub) {
}
KeyEventTracker::~KeyEventTracker() {
DCHECK(pressed_keys_.empty());
}
void KeyEventTracker::InjectKeyEvent(const KeyEvent& event) {
DCHECK(event.has_pressed());
DCHECK(event.has_keycode());
if (event.pressed()) {
pressed_keys_.insert(event.keycode());
} else {
pressed_keys_.erase(event.keycode());
// Dump the list of currently pressed keys every time ESC is released
// to facilitate debugging of lost key events issues.
if (event.keycode() == ui::VKEY_ESCAPE) {
std::ostringstream keys;
std::set<int>::const_iterator i = pressed_keys_.begin();
if (i == pressed_keys_.end()) {
keys << "<none>";
} else {
keys << *i++;
for (; i != pressed_keys_.end(); ++i) {
keys << ", " << *i;
}
}
LOG(INFO) << "ESC released: pressed keys=" << keys.str();
}
}
input_stub_->InjectKeyEvent(event);
}
void KeyEventTracker::InjectMouseEvent(const MouseEvent& event) {
input_stub_->InjectMouseEvent(event);
}
void KeyEventTracker::ReleaseAllKeys() {
std::set<int>::iterator i;
for (i = pressed_keys_.begin(); i != pressed_keys_.end(); ++i) {
KeyEvent event;
event.set_keycode(*i);
event.set_pressed(false);
input_stub_->InjectKeyEvent(event);
}
pressed_keys_.clear();
}
} // namespace protocol
} // namespace remoting
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