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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// A helper function for using JsTemplate. See jstemplate_builder.h for more
// info.
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/common_resources.h"
#include "chrome/common/json_value_serializer.h"
#include "base/logging.h"
#include "chrome/common/resource_bundle.h"
#include "base/string_util.h"
namespace jstemplate_builder {
std::string GetTemplateHtml(const StringPiece& html_template,
const DictionaryValue* json,
const StringPiece& template_id) {
// fetch and cache the pointer of the jstemplate resource source text.
static const StringPiece jstemplate_src(
ResourceBundle::GetSharedInstance().GetRawDataResource(IDR_JSTEMPLATE_JS));
if (jstemplate_src.empty()) {
NOTREACHED() << "Unable to get jstemplate src";
return std::string();
}
// Convert the template data to a json string.
DCHECK(json) << "must include json data structure";
std::string jstext;
JSONStringValueSerializer serializer(&jstext);
serializer.Serialize(*json);
// </ confuses the HTML parser because it could be a </script> tag. So we
// replace </ with <\/. The extra \ will be ignored by the JS engine.
ReplaceSubstringsAfterOffset(&jstext, 0, "</", "<\\/");
std::string output(html_template.data(), html_template.size());
output.append("<script>");
output.append(jstemplate_src.data(), jstemplate_src.size());
output.append("var tp = document.getElementById('");
output.append(template_id.data(), template_id.size());
output.append("'); var cx = new JsExprContext(");
output.append(jstext);
output.append("); jstProcess(cx, tp);</script>");
return output;
}
} // namespace jstemplate_builder
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