/*
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* Copyright (c) 2010-2020 Belledonne Communications SARL.
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*
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* This file is part of linphone-iphone
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#import "UICheckBoxTableView.h"
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#import "Utils.h"
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@implementation UICheckBoxTableView
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- (instancetype)initWithCoder:(NSCoder *)aDecoder {
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self = [super initWithCoder:aDecoder];
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_selectedItems = [[NSMutableArray alloc] init];
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return self;
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}
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- (instancetype)init {
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self = [super init];
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_selectedItems = [[NSMutableArray alloc] init];
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return self;
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}
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#pragma mark - UITableViewDelegate Functions
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- (BOOL)selectFirstRow {
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// reset details view in fragment mode
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if ([self totalNumberOfItems] > 0) {
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NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
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[self.tableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone];
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[self tableView:self.tableView didSelectRowAtIndexPath:indexPath];
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_emptyView.hidden = YES;
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} else {
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_emptyView.hidden = NO;
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}
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return _emptyView.hidden;
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}
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- (void)viewDidAppear:(BOOL)animated {
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[super viewDidAppear:animated];
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_emptyView.hidden = _editButton.enabled = ([self totalNumberOfItems] > 0);
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}
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- (void)toggleRowSelectionForRowAtIndexPath:(NSIndexPath *)indexPath {
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UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
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if ([_selectedItems containsObject:indexPath]) {
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[_selectedItems removeObject:indexPath];
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} else {
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[_selectedItems addObject:indexPath];
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}
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[self accessoryForCell:cell atPath:indexPath];
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[self selectToggleButton:(_selectedItems.count != [self totalNumberOfItems])];
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}
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- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
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[self toggleRowSelectionForRowAtIndexPath:indexPath];
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}
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
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[self toggleRowSelectionForRowAtIndexPath:indexPath];
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}
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/* Empty methods allow to not freeze UI...*/
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- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(nonnull NSIndexPath *)indexPath {
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}
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- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath {
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}
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- (void)selectToggleButton:(BOOL)select {
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_toggleSelectionButton.selected = select;
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if (select) {
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_toggleSelectionButton.accessibilityLabel = NSLocalizedString(@"Select all", nil);
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} else {
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_toggleSelectionButton.accessibilityLabel = NSLocalizedString(@"Deselect all", nil);
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}
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}
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#pragma mark -
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- (void)accessoryForCell:(UITableViewCell *)cell atPath:(NSIndexPath *)indexPath {
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cell.selectionStyle = UITableViewCellSelectionStyleGray;
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if ([self isEditing]) {
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UIButton *checkBoxButton = [UIButton buttonWithType:UIButtonTypeCustom];
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UIImage *image = nil;
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if ([_selectedItems containsObject:indexPath]) {
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image = [UIImage imageNamed:@"checkbox_checked.png"];
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checkBoxButton.accessibilityValue = NSLocalizedString(@"Selected", nil);
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} else {
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image = [UIImage imageNamed:@"checkbox_unchecked.png"];
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checkBoxButton.accessibilityValue = NSLocalizedString(@"Deselected", nil);
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}
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[checkBoxButton setImage:image forState:UIControlStateNormal];
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[checkBoxButton setFrame:CGRectMake(0, 0, 19, 19)];
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[checkBoxButton setBackgroundColor:[UIColor clearColor]];
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checkBoxButton.accessibilityLabel = NSLocalizedString(@"Checkbox", nil);
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checkBoxButton.userInteractionEnabled = NO;
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cell.accessoryView = checkBoxButton;
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} else {
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cell.accessoryView = nil;
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cell.accessoryType = UITableViewCellAccessoryNone;
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}
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_deleteButton.enabled = (_selectedItems.count != 0);
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_editButton.enabled = YES;
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}
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- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
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[super setEditing:editing animated:animated];
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_editButton.hidden = editing;
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_deleteButton.hidden = _cancelButton.hidden = _toggleSelectionButton.hidden = !editing;
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[self selectToggleButton:YES];
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// when switching editing mode, we must reload all cells to remove/add checkboxes
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[self loadData];
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}
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- (void)loadData {
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[_selectedItems removeAllObjects];
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[self.tableView reloadData];
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_emptyView.hidden = _editButton.enabled = ([self totalNumberOfItems] > 0);
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}
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- (void)removeSelectionUsing:(void (^)(NSIndexPath *indexPath))remover {
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// we must iterate through selected items in reverse order
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[_selectedItems sortUsingComparator:^(NSIndexPath *obj1, NSIndexPath *obj2) {
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return [obj2 compare:obj1];
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}];
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NSArray *copy = [[NSArray alloc] initWithArray:_selectedItems];
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for (NSIndexPath *indexPath in copy) {
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if (remover) {
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remover(indexPath);
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} else {
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[self tableView:self.tableView
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commitEditingStyle:UITableViewCellEditingStyleDelete
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forRowAtIndexPath:indexPath];
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}
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}
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[_selectedItems removeAllObjects];
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[self setEditing:NO animated:YES];
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}
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- (void)onSelectionToggle:(id)sender {
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[_selectedItems removeAllObjects];
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[self selectToggleButton:!_toggleSelectionButton.selected]; // TODO: why do we need that?
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LOGI(@"onSelectionToggle: select %@", _toggleSelectionButton.selected ? @"NONE" : @"ALL");
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for (int i = 0; i < [self numberOfSectionsInTableView:self.tableView]; i++) {
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for (int j = 0; j < [self tableView:self.tableView numberOfRowsInSection:i]; j++) {
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NSIndexPath *indexPath = [NSIndexPath indexPathForRow:j inSection:i];
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UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
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if (!_toggleSelectionButton.selected) {
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[_selectedItems addObject:indexPath];
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[self.tableView selectRowAtIndexPath:indexPath
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animated:NO
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scrollPosition:UITableViewScrollPositionNone];
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} else {
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[self.tableView deselectRowAtIndexPath:indexPath animated:NO];
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}
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[self accessoryForCell:cell atPath:indexPath];
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}
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}
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}
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- (IBAction)onEditClick:(id)sender {
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[self setEditing:YES animated:YES];
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}
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- (IBAction)onCancelClick:(id)sender {
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[self setEditing:NO animated:YES];
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}
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- (NSInteger)totalNumberOfItems {
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NSInteger total = 0;
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for (int i = 0; i < [self numberOfSectionsInTableView:self.tableView]; i++) {
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total += [self tableView:self.tableView numberOfRowsInSection:i];
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}
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return total;
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}
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@end
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