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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 "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/display.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());
}
bool ShouldLoad2xResources() {
return gfx::Display::GetForcedDeviceScaleFactor() > 1.0f ||
CommandLine::ForCurrentProcess()->HasSwitch(switches::kLoad2xResources);
}
} // 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::AddRepresentation.
AddDataPackFromPath(GetResourcesPakFilePath("chrome.pak"),
SCALE_FACTOR_100P);
if (ui::GetDisplayLayout() == ui::LAYOUT_TOUCH) {
// 1x touch
AddDataPackFromPath(GetResourcesPakFilePath("theme_resources_touch_1x.pak"),
SCALE_FACTOR_100P);
AddDataPackFromPath(GetResourcesPakFilePath("ui_resources_touch.pak"),
SCALE_FACTOR_100P);
if (ShouldLoad2xResources()) {
// 2x touch
AddDataPackFromPath(
GetResourcesPakFilePath("theme_resources_touch_2x.pak"),
SCALE_FACTOR_200P);
AddDataPackFromPath(GetResourcesPakFilePath("ui_resources_touch_2x.pak"),
SCALE_FACTOR_200P);
}
} else {
// 1x non touch
AddDataPackFromPath(GetResourcesPakFilePath("theme_resources_standard.pak"),
SCALE_FACTOR_100P);
AddDataPackFromPath(GetResourcesPakFilePath("ui_resources_standard.pak"),
SCALE_FACTOR_100P);
if (ShouldLoad2xResources()) {
// 2x non touch
AddDataPackFromPath(GetResourcesPakFilePath("theme_resources_2x.pak"),
SCALE_FACTOR_200P);
AddDataPackFromPath(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
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