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// Copyright 2015 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 THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_ICON_SELECTOR_H_
#define THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_ICON_SELECTOR_H_
#include "third_party/blink/public/common/manifest/manifest.h"
#include "third_party/blink/public/mojom/manifest/manifest.mojom-shared.h"
#include "url/gurl.h"
namespace blink {
// Selects the landscape or square icon with the supported image MIME types and
// the specified icon purpose that most closely matches the size constraints.
// This follows very basic heuristics -- improvements are welcome.
class BLINK_COMMON_EXPORT ManifestIconSelector {
public:
ManifestIconSelector() = delete;
ManifestIconSelector(const ManifestIconSelector&) = delete;
ManifestIconSelector& operator=(const ManifestIconSelector&) = delete;
// Runs the algorithm to find the best matching icon in the icons listed in
// the Manifest. Size is defined in pixels.
//
// Any icon returned will be close as possible to |ideal_icon_size_in_px|
// with a size not less than |minimum_icon_size_in_px|. Additionally, it must
// be square, have supported image MIME types, and have icon purpose
// |purpose|.
//
// Returns the icon url if a suitable icon is found. An empty URL otherwise.
static GURL FindBestMatchingSquareIcon(
const std::vector<blink::Manifest::ImageResource>& icons,
int ideal_icon_size_in_px,
int minimum_icon_size_in_px,
blink::mojom::ManifestImageResource_Purpose purpose);
// Identical to FindBestMatchingSquareIcon, but finds landscape icons as well
// as square icons.
static GURL FindBestMatchingIcon(
const std::vector<blink::Manifest::ImageResource>& icons,
int ideal_icon_height_in_px,
int minimum_icon_height_in_px,
float max_width_to_height_ratio,
blink::mojom::ManifestImageResource_Purpose purpose);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_ICON_SELECTOR_H_
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