Disable submit button until needed.

No need to have the submit button enabled until there's something to submit. While at it: * Make the submit button actually save the new address to the database. * Enable the button as soon as any text is typed in. * Disable the button again on submit. * Use the "Send" button on the keyboard and have it submit when tapped.
theory · Mar 13, 2010 · e795842 · e795842
1 parent 363112d
commit e795842
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Showing 4 changed files with 35 additions and 6 deletions.
diff --git a/Classes/AddressModel.h b/Classes/AddressModel.h
@@ -18,5 +18,6 @@
 + (void) reorderAddressesFrom:(NSArray *)a;
 - (AddressModel *) initWithEmail:(char *)e confirmed:(int)c;
 - (void) confirm;
+- (void) add;
 
 @end
diff --git a/Classes/AddressModel.m b/Classes/AddressModel.m
@@ -83,6 +83,16 @@ - (void) confirm {
     }
 }
 
+- (void) add {
+    sqlite3 *db = [BuzzalotAppDelegate getDBConnection];
+    sqlite3_stmt *sth;
+    if (sqlite3_prepare_v2(db, "INSERT INTO addresses (email, position) VALUES (?, (SELECT MAX(position) + 1 FROM addresses));", -1, &sth, nil) == SQLITE_OK ) {
+        sqlite3_bind_text(sth, 1, [self.email UTF8String], -1, NULL);
+        sqlite3_step(sth);
+        sqlite3_finalize(sth);
+    }
+}
+
 - (void)dealloc {
     [email release];
     [super dealloc];

diff --git a/Classes/AddressViewController.h b/Classes/AddressViewController.h
@@ -33,7 +33,9 @@
 @property (nonatomic, retain) UIView        *submitView;
 @property (nonatomic, retain) MBProgressHUD *hud;
 
-- (void) emailChanged:(id)sender;
+- (void) fieldChanged:(id)sender;
+- (void) emailEdited:(id)sender;
+- (void) emailExited:(id)sender;
 - (void) requestButtonTapped:(id)sender;
 - (void) confirmButtonTapped:(id)sender;
 - (void) setButtonToCofirm;

diff --git a/Classes/AddressViewController.m b/Classes/AddressViewController.m
@@ -23,22 +23,26 @@ - (void)viewDidLoad {
     emailField.autocorrectionType = UITextAutocorrectionTypeNo;
     emailField.autocapitalizationType = UITextAutocapitalizationTypeNone;
     emailField.clearButtonMode = UITextFieldViewModeWhileEditing;
-    emailField.returnKeyType = UIReturnKeyDone;
+    emailField.returnKeyType = UIReturnKeySend;
     emailField.enablesReturnKeyAutomatically = YES;
     emailField.keyboardType = UIKeyboardTypeEmailAddress;
     emailField.textColor = [UIColor configTextColor];
     emailField.delegate = self;
-    [emailField addTarget:self action:@selector(emailChanged:) forControlEvents:UIControlEventEditingDidEnd];
+    [emailField addTarget:self action:@selector(emailEdited:) forControlEvents:UIControlEventEditingDidEnd];
+    [emailField addTarget:self action:@selector(emailExited:) forControlEvents:UIControlEventEditingDidEndOnExit];
+    [emailField addTarget:self action:@selector(fieldChanged:) forControlEvents:UIControlEventEditingChanged];
 
     self.codeField = [[UITextField alloc] initWithFrame:frame];
     codeField.autocorrectionType = UITextAutocorrectionTypeNo;
     codeField.autocapitalizationType = UITextAutocapitalizationTypeNone;
     codeField.clearButtonMode = UITextFieldViewModeWhileEditing;
-    codeField.returnKeyType = UIReturnKeyDone;
+    codeField.returnKeyType = UIReturnKeySend;
     codeField.enablesReturnKeyAutomatically = YES;
     codeField.keyboardType = UIKeyboardTypeNumberPad;
     codeField.textColor = [UIColor configTextColor];
     codeField.delegate = self;
+    [codeField addTarget:self action:@selector(confirmButtonTapped:) forControlEvents:UIControlEventEditingDidEndOnExit];
+    [codeField addTarget:self action:@selector(fieldChanged:) forControlEvents:UIControlEventEditingChanged];
 
     if (self.address) {
         emailField.text = self.address.email;
@@ -48,7 +52,7 @@ - (void)viewDidLoad {
 
     self.submitButton = [UIButton buttonWithType:UIButtonTypeCustom];
     submitButton.frame = CGRectMake(5, 10, self.tableView.bounds.size.width-10, 44);
-//    submitButton.enabled = NO;
+    submitButton.enabled = NO;
     CGRect screenRect = [[UIScreen mainScreen] applicationFrame];
     self.submitView = [[UIView alloc] initWithFrame:CGRectMake(10, 10, screenRect.size.width, 44.0)];
     [submitView addSubview:submitButton];
@@ -76,12 +80,21 @@ - (void)dealloc {
 
 #pragma mark -
 
-- (void) emailChanged:(id)sender {
+- (void) emailEdited:(id)sender {
     if (!self.address)
         self.address = [[[AddressModel alloc] init] autorelease];
     self.address.email = self.emailField.text;
 }
 
+- (void) emailExited:(id)sender {
+    [self emailEdited:sender];
+    [self requestButtonTapped:sender];
+}
+
+- (void) fieldChanged:(id)sender {
+    submitButton.enabled = emailField.text.length > 0 ? YES : NO;
+}
+
 - (void) startHudWithMessage:(NSString *)message executing:(SEL)selector{
     self.hud = [[MBProgressHUD alloc] initWithView:self.view];
     [self.view addSubview:hud];
@@ -93,11 +106,14 @@ - (void) startHudWithMessage:(NSString *)message executing:(SEL)selector{
 
 - (void) requestButtonTapped:(id)sender {
     [self.emailField resignFirstResponder];
+    submitButton.enabled = NO;
+    [self.address add];
     [self startHudWithMessage:@"Sending…" executing:@selector(sendRequest)];
 }
 
 - (void) confirmButtonTapped:(id)sender {
     [self.codeField resignFirstResponder];
+    submitButton.enabled = NO;
     [self startHudWithMessage:@"Confirming…" executing:@selector(sendConfirm)];
 }