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// Copyright (c) 2013 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.
#ifndef CONTENT_RENDERER_SAVABLE_RESOURCES_H_
#define CONTENT_RENDERER_SAVABLE_RESOURCES_H_
#include <string>
#include <vector>
#include "content/common/content_export.h"
#include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
#include "url/gurl.h"
namespace blink {
class WebElement;
class WebFrame;
class WebString;
class WebView;
}
// A collection of operations that access the underlying WebKit DOM directly.
namespace content {
// Structure for storage the result of getting all savable resource links
// for current page. The consumer of the SavableResourcesResult is responsible
// for keeping these pointers valid for the lifetime of the
// SavableResourcesResult instance.
struct SavableResourcesResult {
// vector which contains all savable links of sub resource.
std::vector<GURL>* resources_list;
// vector which contains corresponding all referral links of sub resource,
// it matched with links one by one.
std::vector<GURL>* referrer_urls_list;
// and the corresponding referrer policies.
std::vector<blink::WebReferrerPolicy>* referrer_policies_list;
// Constructor.
SavableResourcesResult(
std::vector<GURL>* resources_list,
std::vector<GURL>* referrer_urls_list,
std::vector<blink::WebReferrerPolicy>* referrer_policies_list)
: resources_list(resources_list),
referrer_urls_list(referrer_urls_list),
referrer_policies_list(referrer_policies_list) {}
private:
DISALLOW_COPY_AND_ASSIGN(SavableResourcesResult);
};
// Get all savable resource links from specified webframe.
// Returns true if the saved resources links have been saved successfully.
// Otherwise returns false (i.e. if the frame contains a non-savable content).
CONTENT_EXPORT bool GetSavableResourceLinksForFrame(
blink::WebFrame* frame,
SavableResourcesResult* result,
const char** savable_schemes);
// Returns the value in an elements resource url attribute. For IMG, SCRIPT or
// INPUT TYPE=image, returns the value in "src". For LINK TYPE=text/css, returns
// the value in "href". For BODY, TABLE, TR, TD, returns the value in
// "background". For BLOCKQUOTE, Q, DEL, INS, returns the value in "cite"
// attribute. Otherwise returns a null WebString.
CONTENT_EXPORT blink::WebString GetSubResourceLinkFromElement(
const blink::WebElement& element);
} // namespace content
#endif // CONTENT_RENDERER_SAVABLE_RESOURCES_H_
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