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STKSelectionView.m
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STKSelectionView.m
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#import "STKSelectionView.h"
#import "STKConstants.h"
#import "STKSelectionViewCell.h"
#import "STKSelectionHeaderView.h"
#import "STKSelectionTitleTextField.h"
#import <SpringBoard/SpringBoard.h>
static NSString * const kCellReuseIdentifier = @"STKSelectionViewCell";
static NSString * const kHeaderReuseIdentifier = @"OMEMGEE!";
static const CGFloat kMinimumInteritemSpacing = 36;
static const CGFloat kMinimumLineSpacing = 15;
@implementation STKSelectionView
{
UIView *_contentView;
UICollectionView *_collectionView;
SBFolderBackgroundView *_backgroundView;
SBIcon *_selectedIcon;
SBIcon *_centralIcon;
SBIconView *_selectedIconView;
STKSelectionTitleTextField *_searchTextField;
NSArray *_recommendedApps;
NSArray *_allApps;
NSArray *_searchResults;
BOOL _hasRecommendations;
BOOL _isSearching;
}
- (instancetype)initWithFrame:(CGRect)frame selectedIcon:(SBIcon *)selectedIcon centralIcon:(SBIcon *)centralIcon
{
if ((self = [super initWithFrame:frame])) {
_selectedIcon = [selectedIcon retain];
_centralIcon = [centralIcon retain];
_contentView = [[UIView alloc] initWithFrame:self.bounds];
UICollectionViewFlowLayout *flowLayout = [[[UICollectionViewFlowLayout alloc] init] autorelease];
flowLayout.itemSize = [CLASS(SBIconView) defaultIconSize];
_collectionView = [[[UICollectionView alloc] initWithFrame:_contentView.bounds collectionViewLayout:flowLayout] autorelease];
_collectionView.delegate = self;
_collectionView.dataSource = self;
_collectionView.backgroundColor = [UIColor clearColor];
_collectionView.layer.cornerRadius = (ISPAD() ? 50.f : 27.f);
_collectionView.layer.masksToBounds = YES;
_collectionView.allowsSelection = YES;
_collectionView.scrollIndicatorInsets = ISPAD() ? (UIEdgeInsets){35.f, 0.f, 35.f, 0.f} : (UIEdgeInsets){28.f, 0.f, 28.f, 0.f};
_collectionView.backgroundView = [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
_collectionView.bounces = YES;
_collectionView.alwaysBounceVertical = YES;
_collectionView.scrollsToTop = YES;
[_collectionView registerClass:[STKSelectionViewCell class] forCellWithReuseIdentifier:kCellReuseIdentifier];
[_collectionView registerClass:[STKSelectionHeaderView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:kHeaderReuseIdentifier];
_backgroundView = [[CLASS(SBFolderBackgroundView) alloc] initWithFrame:_contentView.frame];
_backgroundView.center = _collectionView.center;
_backgroundView.layer.cornerRadius = _collectionView.layer.cornerRadius;
_backgroundView.layer.masksToBounds = YES;
[_contentView addSubview:_backgroundView];
[_contentView addSubview:_collectionView];
[self addSubview:_contentView];
[self _setupTextField];
}
return self;
}
- (void)dealloc
{
[_searchResults release];
[_recommendedApps release];
[_allApps release];
[_selectedIcon release];
[_centralIcon release];
[_contentView release];
[super dealloc];
}
- (void)layoutSubviews
{
_contentView.center = (CGPoint){CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds)};
_collectionView.frame = _backgroundView.frame = _contentView.bounds;
}
- (UIView *)contentView
{
return _contentView;
}
- (UIView *)iconCollectionView
{
return _collectionView;
}
- (void)setIconsForSelection:(NSArray *)icons
{
_iconsForSelection = [icons copy];
[self _processIcons:icons];
[_collectionView reloadData];
}
- (BOOL)isKeyboardVisible
{
return [_searchTextField isFirstResponder];
}
- (void)scrollToSelectedIconAnimated:(BOOL)animated
{
if ([_selectedIcon isLeafIcon]) {
NSUInteger itemIndex = 0;
NSUInteger itemSection = 0;
if (_hasRecommendations) {
// If we have recommendations, then modify the section accordingly
if ((itemIndex = [_recommendedApps indexOfObject:_selectedIcon]) != NSNotFound) {
itemSection = 0;
}
else if ((itemIndex = [_allApps indexOfObject:_selectedIcon]) != NSNotFound) {
itemSection = 1;
}
}
else {
itemIndex = [_allApps indexOfObject:_selectedIcon];
itemSection = 0;
}
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:itemIndex inSection:itemSection];
[_collectionView selectItemAtIndexPath:indexPath animated:NO scrollPosition:UICollectionViewScrollPositionCenteredVertically];
}
}
- (void)flashScrollIndicators
{
[_collectionView flashScrollIndicators];
}
- (void)dismissKeyboard
{
[_searchTextField resignFirstResponder];
[self _adjustTextFieldBackground];
}
- (void)_processIcons:(NSArray *)icons
{
icons = [icons sortedArrayUsingComparator:^(SBIcon *icon1, SBIcon *icon2) {
BOOL is8_4 = [icon1 respondsToSelector:@selector(displayNameForLocation:)];
if (is8_4) {
return [[icon1 displayNameForLocation:SBIconLocationHomeScreen] localizedCaseInsensitiveCompare:[icon2 displayNameForLocation:SBIconLocationHomeScreen]];
}
return [[icon1 displayName] localizedCaseInsensitiveCompare:[icon2 displayName]];
}];
NSMutableArray *iconsSimilarToSelectedIcon = [NSMutableArray array];
NSMutableArray *allIcons = [NSMutableArray array];
NSSet *centralIconGenres = [NSSet setWithArray:[_centralIcon folderTitleOptions]];
for (SBIcon *icon in icons) {
BOOL iconIsInNewsstand = ([icon respondsToSelector:@selector(iconAppearsInNewsstand)] && [icon iconAppearsInNewsstand]);
BOOL isNewsstandIcon = ([icon respondsToSelector:@selector(isNewsstandIcon)] && [icon isNewsstandIcon]);
if (icon == _centralIcon || iconIsInNewsstand || isNewsstandIcon) {
continue;
}
NSSet *iconGenres = [NSSet setWithArray:[icon folderTitleOptions]];
if ([centralIconGenres intersectsSet:iconGenres]) {
// icons with similar title options are to be grouped together
[iconsSimilarToSelectedIcon addObject:icon];
}
[allIcons addObject:icon];
}
_hasRecommendations = (iconsSimilarToSelectedIcon.count > 0);
_recommendedApps = [iconsSimilarToSelectedIcon retain];
_allApps = [allIcons retain];
}
- (NSArray *)_iconsForSection:(NSInteger)section
{
if (section == 0) {
if (_isSearching) return _searchResults;
if (_hasRecommendations) return _recommendedApps;
return _allApps;
}
if (section == 1) {
return _allApps;
}
return nil;
}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return ((!_hasRecommendations || _isSearching) ? 1 : 2);
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return [self _iconsForSection:section].count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
STKSelectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kCellReuseIdentifier forIndexPath:indexPath];
SBIcon *icon = [self _iconsForSection:indexPath.section][indexPath.item];
cell.iconView.icon = icon;
cell.iconView.delegate = cell;
if (cell.iconView.icon == _selectedIcon) {
[cell.iconView showApexOverlayOfType:STKOverlayTypeCheck];
[cell.iconView setNeedsLayout];
[collectionView selectItemAtIndexPath:indexPath animated:NO scrollPosition:UICollectionViewScrollPositionNone];
}
else {
if ([indexPath compare:[[collectionView indexPathsForSelectedItems] firstObject]] == NSOrderedSame) {
[collectionView deselectItemAtIndexPath:indexPath animated:NO];
}
[cell.iconView removeApexOverlay];
}
[cell.iconView setHighlighted:NO];
cell.tapHandler = ^(STKSelectionViewCell *tappedCell) {
[self _selectedCell:[[tappedCell retain] autorelease]];
};
return cell;
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
return [CLASS(SBIconView) defaultIconSize];
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
return (CGSize){0, 30.f};
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section
{
CGFloat spacing;
if (ISPAD()) {
UIEdgeInsets insets = [self collectionView:collectionView layout:collectionViewLayout insetForSectionAtIndex:section];
CGSize size = [CLASS(SBIconView) defaultIconSize];
spacing = (collectionView.frame.size.width - ((size.width * 3) + insets.left + insets.right)) / 3.f;
}
else {
spacing = kMinimumInteritemSpacing;
}
return spacing;
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
CGFloat height;
if (ISPAD()) {
CGSize size = [CLASS(SBIconView) defaultIconSize];
UIEdgeInsets insets = [self collectionView:collectionView layout:collectionViewLayout insetForSectionAtIndex:section];
CGFloat numItems = 3.1f;
height = (collectionView.frame.size.height - ((size.height * numItems) + insets.top + insets.bottom)) / numItems;
}
else {
height = kMinimumLineSpacing;
}
return height;
}
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
return (ISPAD() ? (UIEdgeInsets){14, 35, 25, 35} : (UIEdgeInsets){6, 25, 30, 25});
}
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
STKSelectionHeaderView *view = (STKSelectionHeaderView *)[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader
withReuseIdentifier:kHeaderReuseIdentifier
forIndexPath:indexPath];
if (indexPath.section == 0) {
if (_isSearching) {
view.headerTitle = @"Search Results";
}
else if (_hasRecommendations) {
view.headerTitle = @"Related Apps";
}
else {
view.headerTitle = @"All Apps";
}
}
else {
view.headerTitle = @"All Apps";
}
return view;
}
- (BOOL)collectionView:(UICollectionView *)collectionView shouldHighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
return NO;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
STKSelectionViewCell *selectedCell = (STKSelectionViewCell *)[_collectionView cellForItemAtIndexPath:[[_collectionView indexPathsForSelectedItems] firstObject]];
[selectedCell.iconView setHighlighted:NO];
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
[self dismissKeyboard];
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
STKSelectionViewCell *selectedCell = (STKSelectionViewCell *)[_collectionView cellForItemAtIndexPath:[[_collectionView indexPathsForSelectedItems] firstObject]];
[selectedCell.iconView setHighlighted:NO];
}
- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView
{
return YES;
}
- (void)_selectedCell:(STKSelectionViewCell *)cell
{
NSIndexPath *previousIndexPath = [[_collectionView indexPathsForSelectedItems] firstObject];
STKSelectionViewCell *previousSelection = (STKSelectionViewCell *)[_collectionView cellForItemAtIndexPath:previousIndexPath];
[previousSelection.iconView removeApexOverlay];
[_collectionView deselectItemAtIndexPath:previousIndexPath animated:NO];
if (_selectedIcon == cell.iconView.icon) {
_selectedIcon = nil;
return;
}
_selectedIcon = cell.iconView.icon;
NSIndexPath *currentIndexPath = [_collectionView indexPathForCell:cell];
STKSelectionViewCell *currentSelection = (STKSelectionViewCell *)[_collectionView cellForItemAtIndexPath:currentIndexPath];
[currentSelection.iconView showApexOverlayOfType:STKOverlayTypeCheck];
[_collectionView selectItemAtIndexPath:currentIndexPath animated:NO scrollPosition:UICollectionViewScrollPositionNone];
[self dismissKeyboard];
if (self.selectionHandler) {
self.selectionHandler();
}
}
- (void)_setupTextField
{
_searchTextField = [[[STKSelectionTitleTextField alloc] initWithFrame:(CGRect){{15.f, 46.f}, {295.0, 50.f}}] autorelease];
CGRect frame = _searchTextField.frame;
if (ISPAD()) {
frame.size.width = [CLASS(SBFolderBackgroundView) folderBackgroundSize].width;
frame.size.height *= 1.5f;
}
_searchTextField.frame = frame;
UIScreen *screen = [UIScreen mainScreen];
CGFloat width = UIInterfaceOrientationIsPortrait([UIApplication sharedApplication].statusBarOrientation) ? screen.bounds.size.width : screen.bounds.size.height;
_searchTextField.center = (CGPoint){(width * 0.5f), (frame.origin.y + (frame.size.height * 0.5))};
_searchTextField.delegate = self;
_searchTextField.attributedPlaceholder = [self _attributedPlaceholderForTextField];
_searchTextField.autocorrectionType = UITextAutocorrectionTypeNo;
[_searchTextField addTarget:self action:@selector(_searchTextChanged) forControlEvents:UIControlEventEditingChanged];
[self addSubview:_searchTextField];
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
[self dismissKeyboard];
return YES;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
textField.textAlignment = NSTextAlignmentLeft;
textField.textColor = [UIColor whiteColor];
textField.attributedPlaceholder = nil;
[self _adjustTextFieldBackground];
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
textField.textAlignment = NSTextAlignmentCenter;
textField.textColor = [UIColor whiteColor];
_searchTextField.attributedPlaceholder = [self _attributedPlaceholderForTextField];
if (_searchTextField.text.length > 0) {
_searchTextField.rightViewMode = UITextFieldViewModeAlways;
}
else {
_searchTextField.rightViewMode = UITextFieldViewModeWhileEditing;
}
[self _adjustTextFieldBackground];
}
- (void)_searchTextChanged
{
[_searchResults release];
_searchResults = nil;
if (_searchTextField.text.length == 0) {
_isSearching = NO;
[_collectionView reloadData];
}
else {
_isSearching = YES;
NSMutableArray *searchResults = [NSMutableArray new];
for (SBIcon *icon in _allApps) {
NSString *displayName = [icon respondsToSelector:@selector(displayNameForLocation:)] ? [icon displayNameForLocation:SBIconLocationHomeScreen] : [icon displayName];
if ([displayName rangeOfString:_searchTextField.text
options:(NSCaseInsensitiveSearch | NSDiacriticInsensitiveSearch)].location != NSNotFound) {
[searchResults addObject:icon];
}
}
_searchResults = searchResults;
[_collectionView reloadData];
}
[self _adjustTextFieldBackground];
}
- (BOOL)textFieldShouldClear:(UITextField *)textField
{
_isSearching = NO;
[_searchResults release];
_searchResults = nil;
[_collectionView reloadData];
[self _adjustTextFieldBackground];
return YES;
}
- (void)_adjustTextFieldBackground
{
if (_searchTextField.isEditing || (_searchTextField.text.length > 0)) {
_searchTextField.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.3];
}
else {
_searchTextField.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.2];
}
}
- (NSAttributedString *)_attributedPlaceholderForTextField
{
return [[[NSAttributedString alloc] initWithString:@"Select Sub-App"
attributes:@{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:24.f],
NSForegroundColorAttributeName: [UIColor colorWithWhite:1.f alpha:1.0f]}] autorelease];
}
@end