// 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 "ui/base/resource/resource_bundle.h"

#include "base/command_line.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "ui/base/layout.h"
#include "ui/base/resource/resource_handle.h"
#include "ui/base/ui_base_paths.h"
#include "ui/base/ui_base_switches.h"
#include "ui/gfx/image/image.h"

namespace {

FilePath GetResourcesPakFilePath(const std::string& pak_name) {
  FilePath path;
  if (PathService::Get(base::DIR_MODULE, &path))
    return path.AppendASCII(pak_name.c_str());

  // Return just the name of the pack file.
  return FilePath(pak_name.c_str());
}

}  // namespace

namespace ui {

void ResourceBundle::LoadCommonResources() {
  // Always load the 1x data pack first as the 2x data pack contains both 1x and
  // 2x images. The 1x data pack only has 1x images, thus passes in an accurate
  // scale factor to gfx::ImageSkia::AddBitmapForScale.
  // TODO(pkotwicz): Fix this in cases where it is intended for the 2x bitmap
  // not to be 2 * size of the 1x bitmap for HDA.
  // TODO(oshima): Fix this where it is unintended.

  AddDataPack(GetResourcesPakFilePath("chrome.pak"),
              SCALE_FACTOR_100P);

  if (ui::GetDisplayLayout() == ui::LAYOUT_TOUCH) {
    // 1x touch
    AddDataPack(GetResourcesPakFilePath("theme_resources_touch_1x.pak"),
                SCALE_FACTOR_100P);
    AddDataPack(GetResourcesPakFilePath("ui_resources_touch.pak"),
                SCALE_FACTOR_100P);
    if (CommandLine::ForCurrentProcess()->HasSwitch(
            switches::kLoad2xResources)) {
      // 2x touch
      AddDataPack(GetResourcesPakFilePath("theme_resources_touch_2x.pak"),
                  SCALE_FACTOR_200P);
      AddDataPack(GetResourcesPakFilePath("ui_resources_touch_2x.pak"),
                  SCALE_FACTOR_200P);
    }
  } else {
    // 1x non touch
    AddDataPack(GetResourcesPakFilePath("theme_resources_standard.pak"),
                SCALE_FACTOR_100P);
    AddDataPack(GetResourcesPakFilePath("ui_resources_standard.pak"),
                SCALE_FACTOR_100P);
    if (CommandLine::ForCurrentProcess()->HasSwitch(
            switches::kLoad2xResources)) {
      // 2x non touch
      AddDataPack(GetResourcesPakFilePath("theme_resources_standard_2x.pak"),
                  SCALE_FACTOR_200P);
      AddDataPack(GetResourcesPakFilePath("ui_resources_2x.pak"),
                  SCALE_FACTOR_200P);
    }
  }
}

gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl) {
  // Flipped image is not used on ChromeOS.
  DCHECK_EQ(rtl, RTL_DISABLED);
  return GetImageNamed(resource_id);
}

}  // namespace ui