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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_APP_LIST_SEARCH_FILES_FILE_RESULT_H_
#define CHROME_BROWSER_ASH_APP_LIST_SEARCH_FILES_FILE_RESULT_H_
#include <iosfwd>
#include <optional>
#include "ash/public/cpp/holding_space/holding_space_image.h"
#include "ash/public/cpp/style/color_mode_observer.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ash/app_list/search/chrome_search_result.h"
class Profile;
namespace ash {
class ThumbnailLoader;
namespace string_matching {
class TokenizedString;
} // namespace string_matching
} // namespace ash
namespace app_list {
// This result class is shared between four file search providers:
// {drive,local} {zero-state,search}.
class FileResult : public ChromeSearchResult, public ash::ColorModeObserver {
public:
enum class Type { kFile, kDirectory, kSharedDirectory };
// Note: `thumbnail_loader_` is only used for list and image search items to
// load the thumbnail image to be used for the result. It can be nullptr, in
// which case the result will use the default file type icon for the result.
FileResult(const std::string& id,
const base::FilePath& filepath,
const std::optional<std::u16string>& details,
ResultType result_type,
DisplayType display_type,
float relevance,
const std::u16string& query,
Type type,
Profile* profile,
ash::ThumbnailLoader* thumbnail_loader);
~FileResult() override;
FileResult(const FileResult&) = delete;
FileResult& operator=(const FileResult&) = delete;
// ChromeSearchResult overrides:
void Open(int event_flags) override;
std::optional<std::string> DriveId() const override;
std::optional<GURL> url() const override;
// Calculates file's match relevance score. Will return a default score if the
// query is missing or the filename is empty.
static double CalculateRelevance(
const std::optional<ash::string_matching::TokenizedString>& query,
const base::FilePath& filepath,
const std::optional<base::Time>& last_accessed);
void set_drive_id(const std::optional<std::string>& drive_id) {
drive_id_ = drive_id;
}
void set_url(const std::optional<GURL>& url) { url_ = url; }
private:
// ash::ColorModeObserver:
void OnColorModeChanged(bool dark_mode_enabled) override;
// Called by `thumbnail_image_` to generate the thumbnail image to be used for
// the result icon.
void RequestThumbnail(const base::FilePath& file_path,
const gfx::Size& size,
ash::HoldingSpaceImage::BitmapCallback callback);
// Called by `thumbnail_image_` to generate the placeholder image to be used
// for the result icon.
gfx::ImageSkia GetPlaceholderImage(const base::FilePath& file_path,
const gfx::Size& size,
const std::optional<bool>& dark_background,
const std::optional<bool>& is_folder);
void UpdateChipIcon();
void UpdateThumbnailIcon();
const base::FilePath filepath_;
const Type type_;
const raw_ptr<Profile> profile_;
const raw_ptr<ash::ThumbnailLoader> thumbnail_loader_;
std::optional<std::string> drive_id_;
std::optional<GURL> url_;
// Helper to handle lazy loading of the file thumbnail image - it manages an
// ImageSkia that defaults to a "placeholder" icon - the default file icon,
// and request a thumbnail load, using `thumbnail_loader_` when the image is
// first requested (e.g. to paint it in the UI).
// Allows for `thumbnail_loader_` to be nullptr, in which case the image will
// remain in placeholder state.
std::unique_ptr<ash::HoldingSpaceImage> thumbnail_image_;
std::optional<base::CallbackListSubscription> thumbnail_image_update_sub_;
base::WeakPtrFactory<FileResult> weak_factory_{this};
};
::std::ostream& operator<<(::std::ostream& os, const FileResult& result);
} // namespace app_list
#endif // CHROME_BROWSER_ASH_APP_LIST_SEARCH_FILES_FILE_RESULT_H_
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