code.grnet.gr Git - pithos-ios/blob - Classes/EditAccountGroupsViewController.m

   1 //
   2 //  EditAccountGroupsViewController.m
   3 //  pithos-ios
   4 //
   5 // Copyright 2011 GRNET S.A. All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or
   8 // without modification, are permitted provided that the following
   9 // conditions are met:
  10 //
  11 //   1. Redistributions of source code must retain the above
  12 //      copyright notice, this list of conditions and the following
  13 //      disclaimer.
  14 //
  15 //   2. Redistributions in binary form must reproduce the above
  16 //      copyright notice, this list of conditions and the following
  17 //      disclaimer in the documentation and/or other materials
  18 //      provided with the distribution.
  19 //
  20 // THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  21 // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  24 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27 // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  28 // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31 // POSSIBILITY OF SUCH DAMAGE.
  32 //
  33 // The views and conclusions contained in the software and
  34 // documentation are those of the authors and should not be
  35 // interpreted as representing official policies, either expressed
  36 // or implied, of GRNET S.A.
  37
  38 #import "EditAccountGroupsViewController.h"
  39 #import "OpenStackAccount.h"
  40 #import "ActivityIndicatorView.h"
  41 #import "UIViewController+Conveniences.h"
  42 #import "AccountManager.h"
  43 #import "OpenStackRequest.h"
  44 #import "APICallback.h"
  45
  46 #define kGroupDetails 0
  47 #define kSave 1
  48 #define kRemove 2
  49
  50 @implementation EditAccountGroupsViewController
  51
  52 @synthesize account;
  53 @synthesize groupName, groupUsers, removeGroupEnabled;
  54 @synthesize groups,metadata;
  55
  56 #pragma mark - View lifecycle
  57
  58 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
  59     return ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) || (toInterfaceOrientation == UIInterfaceOrientationPortrait);
  60 }
  61
  62 #pragma mark - Memory management
  63
  64 - (void)dealloc {
  65     [groupName release];
  66     [groupUsers release];
  67     [account release];
  68     [metadata release];
  69     [groups release];
  70     [super dealloc];
  71 }
  72
  73 #pragma mark - Internal
  74
  75 - (BOOL)userInputIsValid:(NSString *)input fieldName:(NSString *)fieldName {
  76     if (![input length] || ![[input stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] length]) {
  77         [self alert:@"Invalid input" message:[NSString stringWithFormat:@"%@ field cannot be empty", fieldName]];
  78         return NO;
  79     }
  80     NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:@"= "];
  81     if ([input rangeOfCharacterFromSet:set].location != NSNotFound) {
  82         [self alert:@"Invalid input" message:[NSString stringWithFormat:@"%@ field cannot contain '=' or whitespace characters", fieldName]];
  83         return NO;
  84     }
  85     return YES;
  86 }
  87
  88 #pragma mark - UITableViewDataSource
  89
  90 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
  91     if (removeGroupEnabled)
  92         return 3;
  93     else
  94         return 2;
  95 }
  96
  97 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
  98     if (section == kGroupDetails)
  99         return 2;
 100     else
 101         return 1;
 102 }
 103
 104 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 105     static NSString *CellIdentifier = @"Cell";
 106
 107     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
 108     if (cell == nil) {
 109         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
 110     }
 111
 112     cell.textLabel.text = @"";
 113     cell.accessoryType = UITableViewCellAccessoryNone;
 114     if (indexPath.section == kGroupDetails) {
 115         UITextField *textField = nil;
 116         for (id subView in cell.contentView.subviews) {
 117             if ([subView isKindOfClass:[UITextField class]]) {
 118                 textField = (UITextField *)subView;
 119             }
 120         }
 121
 122         if (textField == nil) {
 123             CGRect bounds = [cell.contentView bounds];
 124             CGRect rect = CGRectInset(bounds, 10.0, 10.0);
 125             textField = [[UITextField alloc] initWithFrame:rect];
 126             [textField setFrame:rect];
 127         }
 128
 129         [textField setClearButtonMode:UITextFieldViewModeWhileEditing];
 130         [textField setBackgroundColor:[UIColor clearColor]];
 131         [textField setOpaque:YES];
 132         [textField setAutocorrectionType:UITextAutocorrectionTypeNo];
 133         [textField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
 134         [textField setDelegate:self];
 135         textField.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
 136
 137         if (indexPath.row == 0) {
 138             textField.returnKeyType = UIReturnKeyNext;
 139             textField.placeholder = @"Group name";
 140             textField.text = self.groupName;
 141             textField.tag = 0;
 142         } else if (indexPath.row == 1) {
 143             textField.returnKeyType = UIReturnKeyDefault;
 144             textField.placeholder = @"Group users";
 145             textField.text = self.groupUsers;
 146             textField.tag = 1;
 147         }
 148         cell.selectionStyle = UITableViewCellSelectionStyleNone;
 149         [cell.contentView addSubview:textField];
 150     } else if (indexPath.section == kSave) {
 151         cell.textLabel.text = @"Save";
 152     } else if (indexPath.section == kRemove) {
 153         cell.textLabel.text = @"Remove";
 154     }
 155
 156     return cell;
 157 }
 158
 159 #pragma mark - UITableViewDelegate
 160
 161 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
 162     NSIndexPath *keyCellIndexPath;
 163     NSIndexPath *valueCellIndexPath;
 164     UITableViewCell *cell;
 165
 166     if (indexPath.section != kGroupDetails)
 167         [self.view endEditing:YES];
 168
 169     if (indexPath.section == kSave) {
 170         keyCellIndexPath = [NSIndexPath indexPathForRow:0 inSection:kGroupDetails];
 171         cell = [self.tableView cellForRowAtIndexPath:keyCellIndexPath];
 172         UITextField *textField = [[cell.contentView subviews] objectAtIndex:0];
 173         NSString *newGroupName = textField.text;
 174
 175         if (![self userInputIsValid:newGroupName fieldName:@"Group name"]) {
 176             [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 177             return;
 178         }
 179
 180         valueCellIndexPath = [NSIndexPath indexPathForRow:1 inSection:kGroupDetails];
 181         cell = [self.tableView cellForRowAtIndexPath:valueCellIndexPath];
 182         textField = [[cell.contentView subviews] objectAtIndex:0];
 183         NSString *newGroupUsers = textField.text;
 184
 185         if (![self userInputIsValid:newGroupUsers fieldName:@"Group users"]) {
 186             [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 187             return;
 188         }
 189
 190         [groups removeObjectForKey:groupName];
 191         [groups setObject:newGroupUsers forKey:newGroupName];
 192         NSDictionary *accountInfo = [NSDictionary dictionaryWithObjectsAndKeys:groups, @"groups",
 193                                         metadata, @"metadata",
 194                                         nil
 195                                         ];
 196         __block ActivityIndicatorView *activityIndicatorView = [ActivityIndicatorView activityIndicatorViewWithText:@"Saving group..."
 197                                                                                                        andAddToView:self.view];
 198         [[self.account.manager writeAccountMetadata:accountInfo]
 199          success:^(OpenStackRequest *request) {
 200              [activityIndicatorView removeFromSuperview];
 201              self.groupName = newGroupName;
 202              self.groupUsers = newGroupUsers;
 203              self.removeGroupEnabled = YES;
 204              self.navigationItem.title = @"Edit Group";
 205              [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 206              [self.tableView reloadData];
 207          }
 208          failure:^(OpenStackRequest *request) {
 209              [activityIndicatorView removeFromSuperview];
 210              [groups removeObjectForKey:newGroupName];
 211              [groups setObject:self.groupUsers forKey:self.groupName];
 212              [self.tableView reloadData];
 213              [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 214              [self alert:@"There was a problem saving the group information." request:request];
 215          }];
 216     } else if (indexPath.section == kRemove) {
 217         [groups removeObjectForKey:groupName];
 218         NSDictionary *accountInfo = [NSDictionary dictionaryWithObjectsAndKeys:groups, @"groups",
 219                                         metadata, @"metadata",
 220                                         nil
 221                                         ];
 222         __block ActivityIndicatorView *activityIndicatorView = [ActivityIndicatorView activityIndicatorViewWithText:@"Removing group..."
 223                                                                                                        andAddToView:self.view];
 224         [[self.account.manager writeAccountMetadata:accountInfo]
 225          success:^(OpenStackRequest *request) {
 226              [activityIndicatorView removeFromSuperview];
 227              self.groupName = @"";
 228              self.groupUsers = @"";
 229              self.removeGroupEnabled = NO;
 230              [self.tableView reloadData];
 231              [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 232          }
 233          failure:^(OpenStackRequest *request) {
 234              [activityIndicatorView removeFromSuperview];
 235              [groups setObject:groupUsers forKey:groupName];
 236              [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
 237              [self alert:@"There was a problem removing the group information." request:request];
 238          }];
 239     }
 240 }
 241
 242 #pragma mark - UITextFieldDelegate
 243
 244 - (BOOL)textFieldShouldReturn:(UITextField *)textField {
 245     if ([textField returnKeyType] == UIReturnKeyNext) {
 246         [self userInputIsValid:textField.text fieldName:@"Group name"];
 247
 248         NSInteger nextTag = [textField tag] + 1;
 249         UIView *nextTextField = [self.tableView viewWithTag:nextTag];
 250         [nextTextField becomeFirstResponder];
 251     } else {
 252         [self userInputIsValid:textField.text fieldName:@"Group users"];
 253         [textField resignFirstResponder];
 254     }
 255
 256     return YES;
 257 }
 258
 259 @end