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// Copyright (c) 2010 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/dom_ui/dom_ui_util.h"
#include <vector>
#include "app/resource_bundle.h"
#include "base/base64.h"
#include "base/logging.h"
#include "base/values.h"
#include "gfx/codec/png_codec.h"
namespace dom_ui_util {
std::string GetJsonResponseFromFirstArgumentInList(const ListValue* args) {
return GetJsonResponseFromArgumentList(args, 0);
}
std::string GetJsonResponseFromArgumentList(const ListValue* args,
size_t list_index) {
std::string result;
if (args->GetSize() <= list_index) {
NOTREACHED();
return result;
}
Value* value = NULL;
if (args->Get(list_index, &value))
value->GetAsString(&result);
else
NOTREACHED();
return result;
}
std::string GetImageDataUrl(const SkBitmap& bitmap) {
std::vector<unsigned char> output;
gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &output);
std::string str_url;
std::copy(output.begin(), output.end(),
std::back_inserter(str_url));
base::Base64Encode(str_url, &str_url);
str_url.insert(0, "data:image/png;base64,");
return str_url;
}
std::string GetImageDataUrlFromResource(int res) {
// Load resource icon and covert to base64 encoded data url
RefCountedStaticMemory* icon_data =
ResourceBundle::GetSharedInstance().LoadDataResourceBytes(res);
if (!icon_data)
return std::string();
scoped_refptr<RefCountedMemory> raw_icon(icon_data);
std::string str_url;
std::copy(raw_icon->front(), raw_icon->front() + raw_icon->size(),
std::back_inserter(str_url));
base::Base64Encode(str_url, &str_url);
str_url.insert(0, "data:image/png;base64,");
return str_url;
}
} // end of namespace dom_ui_util
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