// 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 "chrome/browser/ui/browser.h"

#include "base/utf_string_conversions.h"
#include "base/win/metro.h"
#include "chrome/browser/bookmarks/bookmark_utils.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/fullscreen_controller.h"
#include "chrome/browser/ui/tab_contents/tab_contents.h"

namespace {

void NewMetroWindow(Browser* source_browser, Profile* profile) {
  typedef void (*FlipFrameWindows)();

  static FlipFrameWindows flip_window_fn = reinterpret_cast<FlipFrameWindows>(
      ::GetProcAddress(base::win::GetMetroModule(), "FlipFrameWindows"));
  DCHECK(flip_window_fn);

  Browser* browser = browser::FindTabbedBrowser(profile, false);
  if (!browser) {
    Browser::OpenEmptyWindow(profile);
    return;
  }

  browser->NewTab();

  if (browser != source_browser) {
    // Tell the metro_driver to flip our window. This causes the current
    // browser window to be hidden and the next window to be shown.
    flip_window_fn();
  }
}

}  // namespace

void Browser::NewWindow() {
  if (base::win::IsMetroProcess()) {
    NewMetroWindow(this, profile_->GetOriginalProfile());
    return;
  }
  NewEmptyWindow(profile_->GetOriginalProfile());
}

void Browser::NewIncognitoWindow() {
  if (base::win::IsMetroProcess()) {
    NewMetroWindow(this, profile_->GetOffTheRecordProfile());
    return;
  }
  NewEmptyWindow(profile_->GetOffTheRecordProfile());
}

void Browser::SetMetroSnapMode(bool enable) {
  fullscreen_controller_->SetMetroSnapMode(enable);
}

void Browser::PinCurrentPageToStartScreen() {
  HMODULE metro_module = base::win::GetMetroModule();
  if (metro_module) {
    GURL url;
    string16 title;
    TabContents* tab = GetActiveTabContents();
    bookmark_utils::GetURLAndTitleToBookmark(tab->web_contents(), &url, &title);

    typedef BOOL (*MetroPinUrlToStartScreen)(const string16&, const string16&);
    MetroPinUrlToStartScreen metro_pin_url_to_start_screen =
        reinterpret_cast<MetroPinUrlToStartScreen>(
            ::GetProcAddress(metro_module, "MetroPinUrlToStartScreen"));
    if (!metro_pin_url_to_start_screen) {
      NOTREACHED();
      return;
    }

    VLOG(1) << __FUNCTION__ << " calling pin with title: " << title
            << " and url " << UTF8ToUTF16(url.spec());
    metro_pin_url_to_start_screen(title, UTF8ToUTF16(url.spec()));
    return;
  }
}