ios/WeexDemo/extend/handler/WXImgLoaderDefaultImpl.m

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#import "WXImgLoaderDefaultImpl.h"
#import <SDWebImage/UIImageView+WebCache.h>
#import <WeexSDK/WXLog.h>
#import <WeexSDK/WXSDKManager.h>

#define MIN_IMAGE_WIDTH 36
#define MIN_IMAGE_HEIGHT 36

#if OS_OBJECT_USE_OBJC
#undef  WXDispatchQueueRelease
#undef  WXDispatchQueueSetterSementics
#define WXDispatchQueueRelease(q)
#define WXDispatchQueueSetterSementics strong
#else
#undef  WXDispatchQueueRelease
#undef  WXDispatchQueueSetterSementics
#define WXDispatchQueueRelease(q) (dispatch_release(q))
#define WXDispatchQueueSetterSementics assign
#endif

@interface WXImgLoaderDefaultImpl()

@property (WXDispatchQueueSetterSementics, nonatomic) dispatch_queue_t ioQueue;

@end

@implementation WXImgLoaderDefaultImpl

#pragma mark -
#pragma mark WXImgLoaderProtocol

- (id<WXImageOperationProtocol>)downloadImageWithURL:(NSString *)url imageFrame:(CGRect)imageFrame userInfo:(NSDictionary *)userInfo completed:(void(^)(UIImage *image,  NSError *error, BOOL finished))completedBlock
{
    [self _recoredImgLoad:url options:userInfo];
    if ([url hasPrefix:@"//"]) {
        url = [@"http:" stringByAppendingString:url];
    }
    return (id<WXImageOperationProtocol>)[[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:url] options:0 progress:^(NSInteger receivedSize, NSInteger expectedSize) {
        
    } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
        if (completedBlock) {
            completedBlock(image, error, finished);
        }
        [self _recoredFinish:imageURL error:error loadOptions:userInfo];
    }];
}

- (void)setImageViewWithURL:(UIImageView *)imageView url:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(NSDictionary *)options progress:(void (^)(NSInteger, NSInteger))progressBlock completed:(void (^)(UIImage *, NSError *, WXImageLoaderCacheType, NSURL *))completedBlock
{
    [self _recoredImgLoad:url.absoluteString options:options];
    SDWebImageOptions sdWebimageOption = SDWebImageRetryFailed;
    if (options && options[@"sdWebimageOption"]) {
        [options[@"sdWebimageOption"] intValue];
    }
    
    [imageView sd_setImageWithURL:url placeholderImage:placeholder options:sdWebimageOption progress:^(NSInteger receivedSize, NSInteger expectedSize) {
        if (progressBlock) {
            progressBlock(receivedSize, expectedSize);
        }
    } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
        if (completedBlock) {
            completedBlock(image, error, (WXImageLoaderCacheType)cacheType, imageURL);
        }
        [self _recoredFinish:imageURL error:error loadOptions:options];
    }];
}

- (void) _recoredImgLoad:(NSString *)url options:(NSDictionary *)options
{
    if (nil == url) {
        return;
    }
    NSString* instanceId = [options objectForKey:@"instanceId"];
    if (nil == instanceId) {
        WXLogWarning(@"please set instanceId in userInfo,for url %@:",url);
        return;
    }
    WXSDKInstance* instance =[WXSDKManager instanceForID:instanceId];
    if (nil == instance) {
        return;
    }
    [instance.apmInstance updateDiffStats:KEY_PAGE_STATS_IMG_LOAD_NUM withDiffValue:1];
}

- (void) _recoredFinish:(NSURL*)imgUrl error:(NSError*)error loadOptions:(NSDictionary*)options
{
    NSString* instanceId = [options objectForKey:@"instanceId"];
    if (nil == instanceId) {
        WXLogWarning(@"please set instanceId in userInfo,for url %@:",imgUrl.absoluteString);
        return;
    }
    WXSDKInstance* instance =[WXSDKManager instanceForID:instanceId];
    if (nil == instance) {
        return;
    }
    bool loadSucceed = error == nil;
    [instance.apmInstance actionImgLoadResult:loadSucceed withErrorCode:nil];
}

@end