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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 "chrome/browser/extensions/app_file_handler_util.h"
#include "net/base/mime_util.h"
using extensions::Extension;
namespace app_file_handler_util {
typedef std::vector<Extension::FileHandlerInfo> FileHandlerList;
const Extension::FileHandlerInfo* FileHandlerForId(
const Extension& app,
const std::string& handler_id) {
const FileHandlerList& file_handlers = app.file_handlers();
for (FileHandlerList::const_iterator i = file_handlers.begin();
i != file_handlers.end(); i++) {
if (i->id == handler_id)
return &*i;
}
return NULL;
}
const Extension::FileHandlerInfo* FirstFileHandlerForMimeType(
const Extension& app,
const std::string& mime_type) {
const FileHandlerList& file_handlers = app.file_handlers();
for (FileHandlerList::const_iterator i = file_handlers.begin();
i != file_handlers.end(); i++) {
for (std::set<std::string>::const_iterator t = i->types.begin();
t != i->types.end(); t++) {
if (net::MatchesMimeType(*t, mime_type))
return &*i;
}
}
return NULL;
}
std::vector<const Extension::FileHandlerInfo*> FindFileHandlersForMimeTypes(
const Extension& app,
const std::set<std::string>& mime_types) {
std::vector<const Extension::FileHandlerInfo*> handlers;
if (mime_types.empty())
return handlers;
// Look for file handlers which can handle all the MIME types specified.
const FileHandlerList& file_handlers = app.file_handlers();
for (FileHandlerList::const_iterator data = file_handlers.begin();
data != file_handlers.end(); ++data) {
bool handles_all_types = true;
for (std::set<std::string>::const_iterator type_iter = mime_types.begin();
type_iter != mime_types.end(); ++type_iter) {
if (!FileHandlerCanHandleFileWithMimeType(*data, *type_iter)) {
handles_all_types = false;
break;
}
}
if (handles_all_types)
handlers.push_back(&*data);
}
return handlers;
}
bool FileHandlerCanHandleFileWithMimeType(
const extensions::Extension::FileHandlerInfo& handler,
const std::string& mime_type) {
// TODO(benwells): this should check the file's extension as well.
for (std::set<std::string>::const_iterator type = handler.types.begin();
type != handler.types.end(); ++type) {
if (net::MatchesMimeType(*type, mime_type))
return true;
}
return false;
}
} // namespace
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