/*
 * Strawberry Music Player
 * This file was part of Clementine.
 * Copyright 2011, David Sansome <me@davidsansome.com>
 *
 * Strawberry is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Strawberry is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#include "config.h"

#include "globalshortcutgrabber.h"

#import <AppKit/NSEvent.h>
#import <AppKit/NSGraphics.h>
#import <AppKit/NSViewController.h>
#import <QuartzCore/CALayer.h>

#include <QKeySequence>

#import "core/mac_utilities.h"

class MacMonitorWrapper {
 public:
  explicit MacMonitorWrapper(id monitor) : local_monitor_(monitor) {}

  ~MacMonitorWrapper() { [NSEvent removeMonitor:local_monitor_]; }

 private:
  id local_monitor_;
  Q_DISABLE_COPY(MacMonitorWrapper);
};

bool GlobalShortcutGrabber::HandleMacEvent(NSEvent* event) {
  ret_ = mac::KeySequenceFromNSEvent(event);
  UpdateText();
  if ([[event charactersIgnoringModifiers] length] != 0) {
    accept();
    return true;
  }
  return ret_ == QKeySequence(Qt::Key_Escape);
}

void GlobalShortcutGrabber::SetupMacEventHandler() {
  id monitor = [NSEvent addLocalMonitorForEventsMatchingMask: NSKeyDownMask handler:^(NSEvent* event) {
        return HandleMacEvent(event) ? event : nil;
  }];
  wrapper_ = new MacMonitorWrapper(monitor);
}

void GlobalShortcutGrabber::TeardownMacEventHandler() { delete wrapper_; }