Initial working password application with types and history.

OnePassword/OPSearchDelegate.m

@@ -0,0 +1,204 @@
+//
+//  OPSearchDelegate.m
+//  OnePassword
+//
+//  Created by Maarten Billemont on 04/01/12.
+//  Copyright (c) 2012 Lyndir. All rights reserved.
+//
+
+#import "OPSearchDelegate.h"
+#import "OPAppDelegate.h"
+
+@interface OPSearchDelegate (Private)
+
+- (NSManagedObjectContext *)managedObjectContext;
+- (void)update;
+
+@end
+
+@implementation OPSearchDelegate
+@synthesize fetchedResultsController;
+@synthesize delegate;
+@synthesize searchDisplayController;
+
+- (NSManagedObjectContext *)managedObjectContext {
+
+    return [(OPAppDelegate *)[UIApplication sharedApplication].delegate managedObjectContext];
+}
+
+- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
+
+    [self.searchDisplayController.searchResultsTableView setEditing:self.searchDisplayController.searchContentsController.editing animated:NO];
+    [self update];
+}
+
+- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
+
+    [self update];
+
+    return YES;
+}
+
+- (void)update {
+
+    NSString *text = self.searchDisplayController.searchBar.text;
+    if (!text)
+        text = @"";
+
+    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:NSStringFromClass([OPElementEntity class])];
+    [fetchRequest setSortDescriptors:
+            [NSArray arrayWithObject:[[NSSortDescriptor alloc] initWithKey:@"uses" ascending:NO]]];
+    [fetchRequest setPredicate:
+            [NSPredicate predicateWithFormat:@"name BEGINSWITH[cd] %@", text]];
+
+    self.fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
+                                                                        managedObjectContext:[self managedObjectContext]
+                                                                          sectionNameKeyPath:nil cacheName:nil];
+    self.fetchedResultsController.delegate = self;
+
+    NSError *error;
+    if (![self.fetchedResultsController performFetch:&error])
+        err(@"Couldn't fetch elements: %@", error);
+}
+
+- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller {
+    
+    [self.searchDisplayController.searchResultsTableView beginUpdates];
+}
+
+- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath {
+    
+    indexPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section + 1];
+    newIndexPath = [NSIndexPath indexPathForRow:newIndexPath.row inSection:newIndexPath.section + 1];
+    
+    switch(type) {
+            
+        case NSFetchedResultsChangeInsert:
+            [self.searchDisplayController.searchResultsTableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade];
+            break;
+            
+        case NSFetchedResultsChangeDelete:
+            [self.searchDisplayController.searchResultsTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
+            break;
+            
+        case NSFetchedResultsChangeUpdate:
+            [self configureCell:[self.searchDisplayController.searchResultsTableView cellForRowAtIndexPath:indexPath]
+                    atIndexPath:indexPath];
+            break;
+            
+        case NSFetchedResultsChangeMove:
+            [self.searchDisplayController.searchResultsTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
+                                                                       withRowAnimation:UITableViewRowAnimationFade];
+            [self.searchDisplayController.searchResultsTableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]
+                                                                       withRowAnimation:UITableViewRowAnimationFade];
+            break;
+    }
+}
+
+
+- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type {
+    
+    ++sectionIndex;
+    
+    switch(type) {
+            
+        case NSFetchedResultsChangeInsert:
+            [self.searchDisplayController.searchResultsTableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex]
+                                                               withRowAnimation:UITableViewRowAnimationFade];
+            break;
+            
+        case NSFetchedResultsChangeDelete:
+            [self.searchDisplayController.searchResultsTableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex]
+                                                               withRowAnimation:UITableViewRowAnimationFade];
+            break;
+    }
+}
+
+- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller {
+    
+    [self.searchDisplayController.searchResultsTableView endUpdates];
+}
+
+- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
+    
+    return [[self.fetchedResultsController sections] count] + 1;
+}
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+    
+    if (--section == -1)
+        return 1;
+    
+    return [[[self.fetchedResultsController sections] objectAtIndex:section] numberOfObjects];
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+    
+    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"OPElementSearch"];
+    if (!cell)
+        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"OPElementSearch"];
+    
+    [self configureCell:cell atIndexPath:indexPath];
+    
+    return cell;
+}
+
+- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath {
+    
+    indexPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section - 1];
+    if (indexPath.section == -1) {
+        cell.textLabel.text = self.searchDisplayController.searchBar.text;
+        cell.detailTextLabel.text = @"New";
+    } else {
+        OPElementEntity *element = [self.fetchedResultsController objectAtIndexPath:indexPath];
+
+        cell.textLabel.text = element.name;
+        cell.detailTextLabel.text = [NSString stringWithFormat:@"%d", element.uses];
+    }
+}
+
+- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
+    
+    OPElementEntity *element;
+    indexPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section - 1];
+    if (indexPath.section == -1) {
+        element = [NSEntityDescription insertNewObjectForEntityForName:NSStringFromClass([OPElementEntity class])
+                                                inManagedObjectContext:[self managedObjectContext]];
+        element.name = self.searchDisplayController.searchBar.text;
+    } else
+        element = [self.fetchedResultsController objectAtIndexPath:indexPath];
+    
+    [self.delegate didSelectElement:element];
+}
+
+- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
+    
+    if (--section == -1)
+        return @"";
+    
+    return [[[self.fetchedResultsController sections] objectAtIndex:section] name];
+}
+
+- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
+    
+    return [self.fetchedResultsController sectionIndexTitles];
+}
+
+- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
+    
+    return [self.fetchedResultsController sectionForSectionIndexTitle:title atIndex:index];
+}
+
+- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
+
+    indexPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section - 1];
+
+    if (editingStyle == UITableViewCellEditingStyleDelete) {
+        OPElementEntity *element = [self.fetchedResultsController objectAtIndexPath:indexPath];
+
+        [[self managedObjectContext] deleteObject:element];
+    }
+}
+
+
+@end