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JeremyOTJeremyOT
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gridview
0 parents  commit 995266f

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‎DataService.h

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#import <Foundation/Foundation.h>
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#define RESPONSE_OK 200
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#define RESPONSE_CLIENT_ERROR 400
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#define RESPONSE_SERVER_ERROR 500
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@interface DataService : NSObject <NSURLConnectionDelegate>
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@property(nonatomic,retain) NSURL *requestURL;
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@property(nonatomic) NSInteger statusCode;
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@property(nonatomic,readonly,getter = isInProgress) BOOL inProgress;
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// Response properties
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@property(nonatomic, retain, readonly) NSDictionary *responseHeaders;
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@property(nonatomic, readonly) long long expectedContentLength;
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@property(nonatomic, retain, readonly) NSString *textEncodingName;
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@property(nonatomic, retain, readonly) NSString *MIMEType;
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@property(nonatomic, retain, readonly) NSString *suggestedFilename;
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+ (DataService*)service;
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-(void)requestWithURL:(NSURL*)url
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method:(NSString*)method
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headers:(NSDictionary*)headers
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bodyStream:(NSInputStream*)bodyStream
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cachePolicy:(NSURLRequestCachePolicy)cachePolicy
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timeoutInterval:(NSTimeInterval)timeoutInterval
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receiveHandler:(void (^)(id, NSNumber*, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError*))errorHandler;
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-(void)requestWithURL:(NSURL*)url
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method:(NSString*)method
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headers:(NSDictionary*)headers
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bodyStream:(NSInputStream*)bodyStream
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receiveHandler:(void (^)(id, NSNumber*, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError*))errorHandler;
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-(void)requestWithURL:(NSURL*)url
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method:(NSString*)method
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headers:(NSDictionary*)headers
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body:(NSData*)body
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receiveHandler:(void (^)(id, NSNumber*, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError*))errorHandler;
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- (void)cancel;
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@end

‎DataService.m

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#import "DataService.h"
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#define DATA_SERVICE_DOMAIN @"DataService"
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@interface DataService ()
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@property (nonatomic, retain) NSMutableData *receivedData;
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@property (nonatomic, retain) NSURLConnection *urlConnection;
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@property (nonatomic, copy) void (^onReceiveBlock)(id, NSNumber*, NSDictionary*);
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@property (nonatomic, copy) void (^onErrorBlock)(NSError*);
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// Response properties: generate hidden setters
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@property(nonatomic, retain, readwrite) NSDictionary *responseHeaders;
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@property(nonatomic, readwrite) long long expectedContentLength;
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@property(nonatomic, retain, readwrite) NSString *textEncodingName;
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@property(nonatomic, retain, readwrite) NSString *MIMEType;
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@property(nonatomic, retain, readwrite) NSString *suggestedFilename;
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@end
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@implementation DataService
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@synthesize requestURL = _requestURL;
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@synthesize statusCode = _statusCode;
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@synthesize receivedData = _receivedData;
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@synthesize urlConnection = _urlConnection;
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@synthesize onReceiveBlock = _onReceiveBlock;
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@synthesize onErrorBlock = _onErrorBlock;
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@synthesize inProgress = _inProgress;
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@synthesize responseHeaders = _responseHeaders;
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@synthesize expectedContentLength = _expectedContentLength;
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@synthesize textEncodingName = _textEncodingName;
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@synthesize MIMEType = _MIMEType;
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@synthesize suggestedFilename = _suggestedFilename;
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#pragma mark - Initialization
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+ (DataService*)service{
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return [[[DataService alloc] init] autorelease];
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}
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#pragma mark - Request
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-(void)requestWithURL:(NSURL*)url
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method:(NSString*)method
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headers:(NSDictionary*)headers
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bodyStream:(NSInputStream*)bodyStream
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cachePolicy:(NSURLRequestCachePolicy)cachePolicy
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timeoutInterval:(NSTimeInterval)timeoutInterval
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receiveHandler:(void (^)(id, NSNumber*, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError*))errorHandler {
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[self retain];
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self.onReceiveBlock = receiveHandler;
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self.onErrorBlock = errorHandler;
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self.requestURL = url;
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self.responseHeaders = nil;
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self.expectedContentLength = 0;
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self.textEncodingName = nil;
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self.MIMEType = nil;
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self.suggestedFilename = nil;
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NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:self.requestURL cachePolicy:cachePolicy timeoutInterval:timeoutInterval];
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for (NSString *header in headers) {
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[request addValue:[headers objectForKey:header] forHTTPHeaderField:header];
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}
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[request setHTTPShouldUsePipelining:YES];
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[request setHTTPMethod:method];
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[request setHTTPBodyStream:bodyStream];
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[_urlConnection cancel];
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[_urlConnection release];
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_urlConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:NO];
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[_urlConnection scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
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[_urlConnection start];
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_inProgress = !!_urlConnection;
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if (_urlConnection) {
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self.receivedData = [NSMutableData data];
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} else {
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NSDictionary *errorInfo = [NSDictionary dictionaryWithObject:@"Failed to create connection" forKey:NSLocalizedDescriptionKey];
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self.onErrorBlock([NSError errorWithDomain:DATA_SERVICE_DOMAIN code:0 userInfo:errorInfo]);
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self.urlConnection = nil;
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[self release];
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}
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}
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-(void)requestWithURL:(NSURL *)url
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method:(NSString *)method
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headers:(NSDictionary *)headers
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body:(NSData *)body
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receiveHandler:(void (^)(id, NSNumber *, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError *))errorHandler {
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NSMutableDictionary *newHeaders = [NSMutableDictionary dictionaryWithDictionary:headers];
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if (body) {
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[newHeaders setObject:[NSString stringWithFormat:@"%d", [body length]] forKey:@"Content-Length"];
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}
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[self requestWithURL:url
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method:method
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headers:newHeaders
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bodyStream:body ? [NSInputStream inputStreamWithData:body] : nil
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receiveHandler:receiveHandler
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errorHandler:errorHandler];
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}
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-(void)requestWithURL:(NSURL*)url
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method:(NSString*)method
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headers:(NSDictionary*)headers
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bodyStream:(NSInputStream*)bodyStream
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receiveHandler:(void (^)(id, NSNumber*, NSDictionary*))receiveHandler
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errorHandler:(void (^)(NSError*))errorHandler {
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[self requestWithURL:url
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method:method
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headers:headers
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bodyStream:bodyStream
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cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData
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timeoutInterval:60.0
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receiveHandler:receiveHandler
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errorHandler:errorHandler];
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}
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#pragma mark - Receive
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- (void)connection:(NSURLConnection*)connection didReceiveResponse:(NSURLResponse*)response{
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NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse*)response;
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self.statusCode = [httpResponse statusCode];
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self.responseHeaders = [httpResponse allHeaderFields];
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self.expectedContentLength = [httpResponse expectedContentLength];
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self.textEncodingName = [httpResponse textEncodingName];
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self.MIMEType = [httpResponse MIMEType];
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self.suggestedFilename = [httpResponse suggestedFilename];
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[self.receivedData setLength:0];
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}
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- (void)connection:(NSURLConnection*)connection didReceiveData:(NSData*)data{
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[self.receivedData appendData:data];
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}
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- (void)connection:(NSURLConnection*)connection didFailWithError:(NSError*)error{
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_inProgress = NO;
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self.receivedData = nil;
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self.onReceiveBlock = nil;
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self.responseHeaders = nil;
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self.expectedContentLength = 0;
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self.textEncodingName = nil;
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self.MIMEType = nil;
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self.suggestedFilename = nil;
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self.urlConnection = nil;
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if (self.onErrorBlock) {
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// Hold on to the block so that this DataService can be used for new requests in the callback.
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void (^onErrorBlock)(NSError*) = [self.onErrorBlock retain];
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self.onErrorBlock = nil;
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onErrorBlock(error);
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[onErrorBlock release];
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}
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[self release];
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}
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- (void)connectionDidFinishLoading:(NSURLConnection*)connection{
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_inProgress = NO;
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// check to see if the status code is an error code and react appropriately
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if (self.statusCode / 100 == RESPONSE_CLIENT_ERROR / 100 || self.statusCode / 100 == RESPONSE_SERVER_ERROR / 100) {
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NSString *errorString = [[[NSString alloc] initWithData:self.receivedData encoding:NSUTF8StringEncoding] autorelease];
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NSDictionary *errorInfo = [NSDictionary dictionaryWithObject:errorString forKey:NSLocalizedDescriptionKey];
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NSError *error = [NSError errorWithDomain:DATA_SERVICE_DOMAIN code:self.statusCode userInfo:errorInfo];
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[self connection:connection didFailWithError:error];
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return;
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}
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self.onErrorBlock = nil;
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self.urlConnection = nil;
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// Hold on to required values so that this DataService can be reused from the callback.
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NSData *receivedData = [self.receivedData retain];
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NSDictionary *responseHeaders = [self.responseHeaders retain];
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self.receivedData = nil;
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self.responseHeaders = nil;
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self.expectedContentLength = 0;
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self.textEncodingName = nil;
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self.MIMEType = nil;
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self.suggestedFilename = nil;
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if (self.onReceiveBlock) {
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void (^onReceiveBlock)(id, NSNumber*, NSDictionary*) = [self.onReceiveBlock retain];
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self.onReceiveBlock = nil;
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onReceiveBlock([NSData dataWithData:receivedData], [NSNumber numberWithInteger:self.statusCode], responseHeaders);
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[onReceiveBlock release];
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}
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[receivedData release];
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[responseHeaders release];
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[self release];
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}
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#pragma mark - Cleanup
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- (void)cancel{
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[self.urlConnection cancel];
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self.urlConnection = nil;
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self.requestURL = nil;
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self.receivedData = nil;
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self.onReceiveBlock = nil;
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self.onErrorBlock = nil;
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self.responseHeaders = nil;
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self.expectedContentLength = 0;
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self.textEncodingName = nil;
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self.MIMEType = nil;
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self.suggestedFilename = nil;
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if (_inProgress) {
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[self release];
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}
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_inProgress = NO;
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}
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- (void)dealloc{
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self.receivedData = nil;
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self.requestURL = nil;
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self.onReceiveBlock = nil;
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self.onErrorBlock = nil;
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self.urlConnection = nil;
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self.responseHeaders = nil;
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self.expectedContentLength = 0;
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self.textEncodingName = nil;
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self.MIMEType = nil;
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self.suggestedFilename = nil;
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[super dealloc];
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}
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@end

‎DebugLog.h

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//
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// DebugLog.h
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//
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// Created by Jeremy Olmsted-Thompson on 12/22/11.
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// Copyright (c) 2011 JOT. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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// Define DEBUG_LOG here or configure it as a preprocessor macro in your project settings. Using
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// project settings allows the log to automatically be disabled for release builds.
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#ifdef DEBUG_LOG
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#define DLog(...) \
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[[DebugLog defaultLog] log:[NSString stringWithFormat:@"%s (%@: %d): %@", __PRETTY_FUNCTION__, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:__VA_ARGS__]]]
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#else
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#define DLog(...)
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#endif
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#ifdef DEBUG_LOG
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#define DLogThread(...) \
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[[DebugLog defaultLog] log:[NSString stringWithFormat:@"%s (%@: %d) %@: %@", __PRETTY_FUNCTION__, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSThread currentThread], [NSString stringWithFormat:__VA_ARGS__]]]
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#else
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#define DLogThread(...)
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#endif
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@interface DebugLog : NSObject {
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NSFileHandle *logFileHandle;
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}
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-(id)initWithLogFilePath:(NSString*)path;
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-(void)log:(NSString*)logString;
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+(DebugLog*)defaultLog;
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@end

‎DebugLog.m

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//
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// DebugLog.m
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//
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// Created by Jeremy Olmsted-Thompson on 12/22/11.
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// Copyright (c) 2011 JOT. All rights reserved.
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//
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#import "DebugLog.h"
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#define DefaultLogFileName @"DebugLog.txt"
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@implementation DebugLog
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-(id)initWithLogFilePath:(NSString*)path {
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if ((self = [super init])) {
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if (![[NSFileManager defaultManager] fileExistsAtPath:path]) {
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[[NSFileManager defaultManager] createFileAtPath:path contents:nil attributes:nil];
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}
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logFileHandle = [[NSFileHandle fileHandleForUpdatingAtPath:path] retain];
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[logFileHandle seekToEndOfFile];
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}
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return self;
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}
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-(void)log:(NSString*)logString {
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NSLog(@"%@", logString);
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[logFileHandle writeData:[[NSString stringWithFormat:@"%@: %@\n", [NSDateFormatter localizedStringFromDate:[NSDate date] dateStyle:NSDateFormatterShortStyle timeStyle:NSDateFormatterLongStyle], logString] dataUsingEncoding:NSUTF8StringEncoding]];
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[logFileHandle synchronizeFile];
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}
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+(DebugLog*)defaultLog {
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static DebugLog *defaultLog = nil;
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if (!defaultLog) {
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defaultLog = [[DebugLog alloc] initWithLogFilePath:[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:DefaultLogFileName]];
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}
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return defaultLog;
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}
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@end

‎GridView.h

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//
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// GridView.h
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//
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// Created by Jeremy Olmsted-Thompson on 3/5/12.
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// Copyright (c) 2012 JOT. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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typedef enum {
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GridViewOrientationHorizontal,
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GridViewOrientationVertical
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} GridViewOrientation;
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@class GridView;
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@protocol GridViewCell
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@optional
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-(NSString*)reuseIdentifier;
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@end
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@protocol GridViewDataSource
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-(UIView*)gridView:(GridView*)gridView viewForItemAtIndex:(NSInteger)index;
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@optional
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-(BOOL)gridViewShouldReload:(GridView*)gridView;
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@end
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@interface GridView : UIScrollView
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@property (nonatomic) NSInteger rowCount;
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@property (nonatomic) CGFloat horizontalSpacing;
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@property (nonatomic) CGFloat verticalSpacing;
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@property (nonatomic) CGFloat tileAspectRatio;
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@property (nonatomic) GridViewOrientation orientation;
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@property (nonatomic,readonly) CGSize tileSize;
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@property (nonatomic,assign) IBOutlet NSObject<GridViewDataSource> *dataSource;
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@property (nonatomic,readonly) BOOL loadingTiles;
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@property (nonatomic,assign) NSUInteger bufferedScreenCount;
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-(void)loadItems;
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-(void)reloadData;
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-(id)dequeueReusableTileWithIdentifier:(NSString*)identifier;
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@end

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