sampleTelAppViewController.m @ 84

Revision 84, 9.7 kB (checked in by henri, 5 years ago)
Changed display of NTNs not to show suffix if subdomain

Line
1	//
2	// sampleTelAppAppDelegate.m
3	// sampleTelApp
4	//
5	// Created by Henri Asseily on 9/12/08.
6	// Copyright __MyCompanyName__ 2008. All rights reserved.
7	//
8
9	#import "sampleTelAppViewController.h"
10
11	@implementation sampleTelAppViewController
12
13	@synthesize headerText;
14
15	#pragma mark --------- View basic methods ---------
16
17	-(id)init {
18	self = [super init];
19	return self;
20	}
21
22	- (void)viewDidLoad {
23	// First activate the Edge connection.
24	// If upon request of a .tel the iPhone doesn't have a connection, the app will
25	// quit to the springboard. A production application should fail more gracefully.
26
27	// The only way to force the EDGE network to come up is to create a connection to some
28	// address using CFStream* interface. This code tries to create a connection to
29	// google.com.
30
31	NSMutableURLRequest *urlReq = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"]];
32	[urlReq setHTTPMethod:@"HEAD"];
33	NSURLResponse *response;
34	NSError *error;
35	[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
36	NSData *reqResults = [NSURLConnection sendSynchronousRequest:urlReq
37	returningResponse:&response
38	error:&error];
39	[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
40	if (!reqResults) {
41	UIAlertView *alert = [UIAlertView alloc];
42	[[alert initWithTitle:@"Data Connection Error"
43	message:[error localizedDescription]
44	delegate:self
45	cancelButtonTitle:nil
46	otherButtonTitles:@"Quit", nil] autorelease];
47	[alert show];
48	}
49
50	// Data connection activation is now started
51	// Get on with the program
52
53	[super viewDidLoad];
54	if (! resolver) {
55	resolver = [[[DnsResolver alloc] init] retain];
56	headerText = @"";
57	naptrArray = [[NSMutableArray arrayWithCapacity:10] retain];
58	txtArray = [[NSMutableArray arrayWithCapacity:10] retain];
59	locArray = [[NSMutableArray arrayWithCapacity:1] retain];
60	otherArray = [[NSMutableArray arrayWithCapacity:1] retain];
61	}
62	requestedDomain = [[NSMutableString stringWithString:@""] retain];
63	}
64
65	- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
66	// Return YES for supported orientations
67	return (interfaceOrientation == UIInterfaceOrientationPortrait);
68	}
69
70
71	- (void)didReceiveMemoryWarning {
72	[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
73	// Release anything that's not essential, such as cached data
74	}
75
76
77	- (void)dealloc {
78	[super dealloc];
79	[resolver release];
80	}
81
82	#pragma mark -------------- action calls ------------------
83
84	// Called when a user enters a .tel in the UITextField
85	- (IBAction)getTelData:(UITextField *)sender {
86	[sender resignFirstResponder];
87	[self lookupDomain:sender.text];
88	//[self performSelectorInBackground:@selector(lookupDomain:) withObject:sender.text];
89	}
90
91	// Main method
92	- (void)lookupDomain:(NSString *)domain {
93
94	//NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
95
96	// Append ".tel" if it was not provided
97	[requestedDomain setString:domain];
98	if (![requestedDomain hasSuffix:@".tel"]) {
99	[requestedDomain appendString:@".tel"];
100	}
101	[telEntryField setText:requestedDomain];
102
103	// Clear old data
104	headerText = @"";
105	if ([naptrArray count] > 0) {
106	[naptrArray removeAllObjects];
107	}
108	if ([txtArray count] > 0) {
109	[txtArray removeAllObjects];
110	}
111	if ([locArray count] > 0) {
112	[locArray removeAllObjects];
113	}
114	[telTable reloadData];
115	//[[NSThread mainThread] performSelector:@selector(reloadData) withObject:telTable];
116
117	[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
118	[resolver getNAPTRForTel:requestedDomain inArray:naptrArray];
119	//[[NSThread mainThread] performSelector:@selector(reloadData) withObject:telTable];
120	headerText = [[resolver getTXTForTel:requestedDomain inArray:txtArray] retain];
121	//[[NSThread mainThread] performSelector:@selector(reloadData) withObject:telTable];
122	NSUInteger locCount = [resolver getLOCForTel:requestedDomain inArray:locArray];
123	if (locCount > 1) {
124	NSLog(@"Warning: %d LOC records in domain %@", locCount, requestedDomain);
125	}
126	//[[NSThread mainThread] performSelector:@selector(reloadData) withObject:telTable];
127	[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
128	[telTable reloadData];
129
130	//[pool release];
131
132	return;
133	}
134
135
136	#pragma mark ---------- Table view Data Source methods ----------
137
138
139	- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
140	return 4;
141	}
142
143	- (NSString )tableView:(UITableView )tableView titleForHeaderInSection:(NSInteger)section {
144	switch (section) {
145	case SECTION_HEADER:
146	return @"Header";
147	break;
148	case SECTION_NAPTR:
149	return @"Contact Info";
150	break;
151	case SECTION_TXT:
152	return @"Keywords";
153	break;
154	case SECTION_LOC:
155	return @"Location";
156	break;
157	default:
158	return @"Other Records";
159	break;
160	}
161	}
162
163	- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
164	switch (section) {
165	case SECTION_HEADER:
166	if ([headerText isEqualToString:@""])
167	return 0;
168	return 1;
169	break;
170	case SECTION_NAPTR:
171	return [naptrArray count];
172	break;
173	case SECTION_TXT:
174	return [txtArray count];
175	break;
176	case SECTION_LOC:
177	return [locArray count];
178	break;
179	default:
180	return [otherArray count];
181	break;
182	}
183	}
184
185	- (UITableViewCell )tableView:(UITableView )tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
186
187	switch (indexPath.section) {
188	case SECTION_HEADER:
189	{
190	static NSString *MyIdentifier = @"headerCell";
191
192	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
193	if (cell == nil) {
194	NSArray *headerCellNib = [[NSBundle mainBundle] loadNibNamed:@"HeaderTableViewCell" owner:self options:nil];
195	cell = (UITableViewCell *)[headerCellNib objectAtIndex:1];
196	}
197	[(UITextView *)[cell viewWithTag:1] setText:headerText];
198	return cell;
199	}
200	break;
201
202	case SECTION_NAPTR:
203	{
204	static NSString *MyIdentifier = @"naptrCells";
205
206	RecordNaptr *theRec = [naptrArray objectAtIndex:indexPath.row];
207
208	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
209	if (cell == nil) {
210	NSArray *naptrCellNib = [[NSBundle mainBundle] loadNibNamed:@"NaptrTableViewCell" owner:self options:nil];
211	cell = (UITableViewCell *)[naptrCellNib objectAtIndex:1];
212	}
213
214	[(UILabel *)[cell viewWithTag:1] setText:theRec.serviceDescription];
215	[(UILabel *)[cell viewWithTag:2] setText:theRec.labelDescription];
216
217	// Check if it's a nonterminal naptr. If so, add the accessory indicator
218	// and remove the trailing part of the string if it is a subdomain of the current domain
219	if (theRec.isTerminal) {
220	[(UILabel *)[cell viewWithTag:3] setText:theRec.uriContent];
221	} else {
222	if ([[theRec.uriContent lowercaseString] hasSuffix:[requestedDomain lowercaseString]]) {
223	NSUInteger suffixIndex = [theRec.uriContent length] - [requestedDomain length] - 1;
224	[(UILabel *)[cell viewWithTag:3] setText:[theRec.uriContent substringToIndex:suffixIndex]];
225	} else {
226	[(UILabel *)[cell viewWithTag:3] setText:theRec.uriContent];
227	}
228	[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
229	}
230
231	return cell;
232	}
233	break;
234
235	case SECTION_TXT:
236	{
237	static NSString *MyIdentifier = @"txtCells";
238
239	RecordTxt *theRec = [txtArray objectAtIndex:indexPath.row];
240
241	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
242	if (cell == nil) {
243	NSArray *txtCellNib = [[NSBundle mainBundle] loadNibNamed:@"TxtTableViewCell" owner:self options:nil];
244	cell = (UITableViewCell *)[txtCellNib objectAtIndex:1];
245	}
246	[(UILabel *)[cell viewWithTag:1] setText:theRec.typeDescription];
247	[(UILabel *)[cell viewWithTag:2] setText:theRec.textValue];
248	return cell;
249	}
250	break;
251
252	case SECTION_LOC:
253	{
254	static NSString *MyIdentifier = @"locCell";
255
256	RecordLoc *theRec = [locArray objectAtIndex:indexPath.row];
257
258	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
259	if (cell == nil) {
260	NSArray *locCellNib = [[NSBundle mainBundle] loadNibNamed:@"LocTableViewCell" owner:self options:nil];
261	cell = (UITableViewCell *)[locCellNib objectAtIndex:1];
262	}
263	[(UILabel *)[cell viewWithTag:1] setText:theRec.description];
264	return cell;
265	}
266	break;
267
268	default:
269	{
270	UITableViewCell *cell = nil;
271	return cell;
272	}
273	break;
274	}
275	}
276
277	#pragma mark ---------- Table view Delegate methods ----------
278
279	// Row selection actions:
280	// - terminal naptr: fire off the url, and let the OS handle it
281	// - non-terminal naptr: query that domain
282	// - loc: fire off a maps url, and let the OS handle it
283	- (void)tableView:(UITableView )tableView didSelectRowAtIndexPath:(NSIndexPath )indexPath {
284	NSUInteger row = indexPath.row;
285	if (row != NSNotFound) {
286	[tableView deselectRowAtIndexPath:indexPath animated:NO];
287	switch (indexPath.section) {
288	case SECTION_NAPTR:
289	{
290	RecordNaptr *naptr = [naptrArray objectAtIndex:row];
291	if (naptr.isTerminal) {
292	NSURL *naptrUrl = [NSURL URLWithString:naptr.uriContent];
293	[[UIApplication sharedApplication] openURL:naptrUrl];
294	} else {
295	// Non-Terminal NAPTR
296	[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
297	[self lookupDomain:naptr.uriContent];
298	}
299	}
300	break;
301	case SECTION_LOC:
302	{
303	RecordLoc *loc = [locArray objectAtIndex:row];
304	NSURL *locUrl = [NSURL URLWithString:
305	[NSString stringWithFormat:@"http://maps.google.com/maps?q=%f,%f&ll=%f,%f",
306	loc.coordinate.latitude,
307	loc.coordinate.longitude,
308	loc.coordinate.latitude,
309	loc.coordinate.longitude
310	]];
311	[[UIApplication sharedApplication] openURL:locUrl];
312	}
313	break;
314	default:
315	break;
316	}
317	}
318	}
319
320	#pragma mark ---------- UIAlertView Delegate methods ----------
321
322	- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
323	exit(0);
324	}
325	@end

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