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140 lines
4.2 KiB
140 lines
4.2 KiB
//
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// FLEXClassesTableViewController.m
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// Flipboard
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//
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// Created by Ryan Olson on 2014-05-03.
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// Copyright (c) 2014 Flipboard. All rights reserved.
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//
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#import "FLEXClassesTableViewController.h"
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#import "FLEXObjectExplorerViewController.h"
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#import "FLEXObjectExplorerFactory.h"
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#import "FLEXUtility.h"
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#import <objc/runtime.h>
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@interface FLEXClassesTableViewController () <UISearchBarDelegate>
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@property (nonatomic, strong) NSArray<NSString *> *classNames;
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@property (nonatomic, strong) NSArray<NSString *> *filteredClassNames;
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@property (nonatomic, strong) UISearchBar *searchBar;
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@end
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@implementation FLEXClassesTableViewController
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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self.searchBar = [[UISearchBar alloc] init];
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self.searchBar.placeholder = [FLEXUtility searchBarPlaceholderText];
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self.searchBar.delegate = self;
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[self.searchBar sizeToFit];
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self.tableView.tableHeaderView = self.searchBar;
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}
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- (void)setBinaryImageName:(NSString *)binaryImageName
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{
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if (![_binaryImageName isEqual:binaryImageName]) {
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_binaryImageName = binaryImageName;
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[self loadClassNames];
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[self updateTitle];
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}
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}
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- (void)setClassNames:(NSArray<NSString *> *)classNames
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{
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_classNames = classNames;
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self.filteredClassNames = classNames;
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}
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- (void)loadClassNames
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{
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unsigned int classNamesCount = 0;
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const char **classNames = objc_copyClassNamesForImage([self.binaryImageName UTF8String], &classNamesCount);
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if (classNames) {
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NSMutableArray<NSString *> *classNameStrings = [NSMutableArray array];
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for (unsigned int i = 0; i < classNamesCount; i++) {
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const char *className = classNames[i];
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NSString *classNameString = [NSString stringWithUTF8String:className];
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[classNameStrings addObject:classNameString];
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}
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self.classNames = [classNameStrings sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];
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free(classNames);
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}
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}
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- (void)updateTitle
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{
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NSString *shortImageName = self.binaryImageName.lastPathComponent;
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self.title = [NSString stringWithFormat:@"%@ Classes (%lu)", shortImageName, (unsigned long)[self.filteredClassNames count]];
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}
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#pragma mark - Search
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- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
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{
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if ([searchText length] > 0) {
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NSPredicate *searchPreidcate = [NSPredicate predicateWithFormat:@"SELF CONTAINS[cd] %@", searchText];
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self.filteredClassNames = [self.classNames filteredArrayUsingPredicate:searchPreidcate];
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} else {
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self.filteredClassNames = self.classNames;
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}
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[self updateTitle];
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[self.tableView reloadData];
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}
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- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
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{
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[searchBar resignFirstResponder];
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}
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- (void)scrollViewDidScroll:(UIScrollView *)scrollView
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{
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// Dismiss the keyboard when interacting with filtered results.
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[self.searchBar endEditing:YES];
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}
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#pragma mark - Table View Data Source
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- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
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{
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return 1;
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}
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
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{
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return [self.filteredClassNames count];
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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static NSString *CellIdentifier = @"Cell";
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UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
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if (!cell) {
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cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
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cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
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cell.textLabel.font = [FLEXUtility defaultTableViewCellLabelFont];
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}
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cell.textLabel.text = self.filteredClassNames[indexPath.row];
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return cell;
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}
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#pragma mark - Table View Delegate
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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NSString *className = self.filteredClassNames[indexPath.row];
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Class selectedClass = objc_getClass([className UTF8String]);
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FLEXObjectExplorerViewController *objectExplorer = [FLEXObjectExplorerFactory explorerViewControllerForObject:selectedClass];
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[self.navigationController pushViewController:objectExplorer animated:YES];
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}
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@end
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