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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_favicon_source.h"
#include "app/resource_bundle.h"
#include "base/callback.h"
#include "chrome/browser/chrome_thread.h"
#include "chrome/browser/profile.h"
#include "chrome/common/url_constants.h"
#include "grit/app_resources.h"
DOMUIFavIconSource::DOMUIFavIconSource(Profile* profile)
: DataSource(chrome::kChromeUIFavIconHost, MessageLoop::current()),
profile_(profile) {
}
DOMUIFavIconSource::~DOMUIFavIconSource() {
}
void DOMUIFavIconSource::StartDataRequest(const std::string& path,
bool is_off_the_record,
int request_id) {
FaviconService* favicon_service =
profile_->GetFaviconService(Profile::EXPLICIT_ACCESS);
if (favicon_service) {
FaviconService::Handle handle;
if (path.empty()) {
SendDefaultResponse(request_id);
return;
}
if (path.size() > 8 && path.substr(0, 8) == "iconurl/") {
handle = favicon_service->GetFavicon(
GURL(path.substr(8)),
&cancelable_consumer_,
NewCallback(this, &DOMUIFavIconSource::OnFavIconDataAvailable));
} else {
handle = favicon_service->GetFaviconForURL(
GURL(path),
&cancelable_consumer_,
NewCallback(this, &DOMUIFavIconSource::OnFavIconDataAvailable));
}
// Attach the ChromeURLDataManager request ID to the history request.
cancelable_consumer_.SetClientData(favicon_service, handle, request_id);
} else {
SendResponse(request_id, NULL);
}
}
std::string DOMUIFavIconSource::GetMimeType(const std::string&) const {
// We need to explicitly return a mime type, otherwise if the user tries to
// drag the image they get no extension.
return "image/png";
}
void DOMUIFavIconSource::OnFavIconDataAvailable(
FaviconService::Handle request_handle,
bool know_favicon,
scoped_refptr<RefCountedMemory> data,
bool expired,
GURL icon_url) {
FaviconService* favicon_service =
profile_->GetFaviconService(Profile::EXPLICIT_ACCESS);
int request_id = cancelable_consumer_.GetClientData(favicon_service,
request_handle);
if (know_favicon && data.get() && data->size()) {
// Forward the data along to the networking system.
SendResponse(request_id, data);
} else {
SendDefaultResponse(request_id);
}
}
void DOMUIFavIconSource::SendDefaultResponse(int request_id) {
if (!default_favicon_.get()) {
default_favicon_ =
ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
IDR_DEFAULT_FAVICON);
}
SendResponse(request_id, default_favicon_);
}
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