/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import <Foundation/Foundation.h>
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#import "BU_SDWebImageCompat.h"
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#import "BU_SDWebImageDefine.h"
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@class BU_SDWebImageOptionsResult;
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typedef BU_SDWebImageOptionsResult * _Nullable(^BU_SDWebImageOptionsProcessorBlock)(NSURL * _Nullable url, BU_SDWebImageOptions options, SDWebImageContext * _Nullable context);
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/**
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The options result contains both options and context.
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*/
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@interface BU_SDWebImageOptionsResult : NSObject
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/**
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BU_WebCache options.
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*/
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@property (nonatomic, assign, readonly) BU_SDWebImageOptions options;
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/**
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Context options.
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*/
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@property (nonatomic, copy, readonly, nullable) SDWebImageContext *context;
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/**
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Create a new options result.
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@param options options
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@param context context
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@return The options result contains both options and context.
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*/
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- (nonnull instancetype)initWithOptions:(BU_SDWebImageOptions)options context:(nullable SDWebImageContext *)context;
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@end
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/**
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This is the protocol for options processor.
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Options processor can be used, to control the final result for individual image request's `BU_SDWebImageOptions` and `SDWebImageContext`
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Implements the protocol to have a global control for each indivadual image request's option.
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*/
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@protocol BU_SDWebImageOptionsProcessor <NSObject>
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/**
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Return the processed options result for specify image URL, with its options and context
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@param url The URL to the image
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@param options A mask to specify options to use for this request
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@param context A context contains different options to perform specify changes or processes, see `BU_SDWebImageContextOption`. This hold the extra objects which `options` enum can not hold.
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@return The processed result, contains both options and context
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*/
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- (nullable BU_SDWebImageOptionsResult *)processedResultForURL:(nullable NSURL *)url
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options:(BU_SDWebImageOptions)options
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context:(nullable SDWebImageContext *)context;
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@end
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/**
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A options processor class with block.
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*/
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@interface BU_SDWebImageOptionsProcessor : NSObject<BU_SDWebImageOptionsProcessor>
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- (nonnull instancetype)initWithBlock:(nonnull BU_SDWebImageOptionsProcessorBlock)block;
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+ (nonnull instancetype)optionsProcessorWithBlock:(nonnull BU_SDWebImageOptionsProcessorBlock)block;
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@end
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