iboss-ios/IBOSS/Utils/SlideSlip/SideSlipFilterController.m

//
//  SideSlipFilterController.m
//  IBOSSMAP
//
//  Created by apple on 2017/4/1.
//  Copyright © 2017年 apple. All rights reserved.
//

#import "SideSlipFilterController.h"
#import "SideSlipModel.h"
#import "SideSlipBaseTableViewCell.h"
#import "objc/message.h"
#import "SideSlipConfig.h"
#import "UIColor+hexColor.h"
#import "objc/runtime.h"


#define SCREEN_WIDTH [[UIScreen mainScreen] bounds].size.width
#define SCREEN_HEIGHT [[UIScreen mainScreen] bounds].size.height

#define SLIP_ORIGIN_FRAME CGRectMake(SCREEN_WIDTH, 0, SCREEN_WIDTH - _sideSlipLeading, SCREEN_HEIGHT)
#define SLIP_DISTINATION_FRAME CGRectMake(_sideSlipLeading, rectStatusHeight, SCREEN_WIDTH - _sideSlipLeading, SCREEN_HEIGHT-rectStatusHeight)

const CGFloat ANIMATION_DURATION_DEFAULT = 0.3f;
const CGFloat SIDE_SLIP_LEADING_DEFAULT = 20;

id (*objc_msgSendGetCellIdentifier)(id self, SEL _cmd) = (void *)objc_msgSend;
CGFloat (*objc_msgSendGetCellHeight)(id self, SEL _cmd) = (void *)objc_msgSend;
id (*objc_msgSendCreateCellWithIndexPath)(id self, SEL _cmd, NSIndexPath *) = (void *)objc_msgSend;

@interface SideSlipFilterController ()<UITableViewDelegate, UITableViewDataSource, SideSlipBaseTableViewCellDelegate>
@property (copy, nonatomic) SideSlipFilterCommitBlock commitBlock;
@property (copy, nonatomic) SideSlipFilterResetBlock resetBlock;
@property (weak, nonatomic) UINavigationController *filterNavigation;
@property (strong, nonatomic) UITableView *mainTableView;
@property (strong, nonatomic) UIView *backCover;
@property (weak, nonatomic) UIViewController *sponsor;
@property (strong, nonatomic) NSMutableDictionary *templateCellDict;
@end

@implementation SideSlipFilterController
- (instancetype)initWithSponsor:(UIViewController *)sponsor
                     resetBlock:(SideSlipFilterResetBlock)resetBlock
                    commitBlock:(SideSlipFilterCommitBlock)commitBlock {
    self = [super init];
    if (self) {
        
        _sponsor = sponsor;
        _resetBlock = resetBlock;
        _commitBlock = commitBlock;
        UINavigationController *filterNavigation = [[NSClassFromString(FILTER_NAVIGATION_CONTROLLER_CLASS) alloc] initWithRootViewController:self];
        [filterNavigation setNavigationBarHidden:YES];
        filterNavigation.navigationBar.translucent = NO;
        [filterNavigation.view setFrame:SLIP_ORIGIN_FRAME];
        self.filterNavigation = filterNavigation;
        [self configureStatic];
        [self configureUI];
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}

#pragma mark 键盘出现
-(void)keyboardWillShow:(NSNotification *)note
{
    CGRect keyBoardRect=[note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    self.mainTableView.contentInset = UIEdgeInsetsMake(0, 0, keyBoardRect.size.height, 0);
}
#pragma mark 键盘消失
-(void)keyboardWillHide:(NSNotification *)note
{
    self.mainTableView.contentInset = UIEdgeInsetsZero;
}

- (void)configureUI {
    UIView *topView=[self createTopView];
    [self.view setBackgroundColor:[UIColor whiteColor]];
    [self.view addSubview:topView];
    //bottomView
    UIView *bottomView = [self createBottomView];
    [self.view addSubview:bottomView];
    
    NSDictionary *views = @{@"topView":topView,@"mainTableView":self.mainTableView, @"bottomView":bottomView};
    
    [self.view addConstraint:[NSLayoutConstraint constraintWithItem:topView attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:BOTTOM_BUTTON_HEIGHT]];
    
    [self.view addConstraint:[NSLayoutConstraint constraintWithItem:bottomView attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:BOTTOM_BUTTON_HEIGHT]];
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[mainTableView]|" options:NSLayoutFormatAlignAllCenterX metrics:nil views:views]];
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[bottomView]|" options:NSLayoutFormatAlignAllCenterX metrics:nil views:views]];
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[topView]-0-|" options:NSLayoutFormatAlignAllCenterX metrics:nil views:views]];
    
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[topView][mainTableView][bottomView]-0-|" options:NSLayoutFormatAlignAllCenterX metrics:nil views:views]];
}

- (void)configureStatic {
    self.animationDuration = ANIMATION_DURATION_DEFAULT;
    self.sideSlipLeading = SIDE_SLIP_LEADING_DEFAULT;
}

- (void)show {
    [_sponsor.navigationController.view addSubview:self.backCover];
    [_sponsor.navigationController addChildViewController:self.navigationController];
    [_sponsor.navigationController.view addSubview:self.navigationController.view];
    _sponsor.navigationController.interactivePopGestureRecognizer.enabled = NO;
    [_backCover setHidden:YES];
    [UIView animateWithDuration:_animationDuration animations:^{
        if(Screen_Height>=812){
            [self.navigationController.view setFrame:CGRectMake(_sideSlipLeading, rectStatusHeight, SCREEN_WIDTH - _sideSlipLeading, SCREEN_HEIGHT-rectStatusHeight-34)];
        }
        else{
            [self.navigationController.view setFrame:SLIP_DISTINATION_FRAME];
        }
        
    } completion:^(BOOL finished) {
        [self->_backCover setHidden:NO];
    }];
}

-(void)showPagerView:(UINavigationController*)nav{
    [nav.view addSubview:self.backCover];
    [nav addChildViewController:self.navigationController];
    [nav.view addSubview:self.navigationController.view];
    nav.interactivePopGestureRecognizer.enabled = NO;
    [_backCover setHidden:YES];
    [UIView animateWithDuration:_animationDuration animations:^{
        if(Screen_Height>=812){
            [self.navigationController.view setFrame:CGRectMake(_sideSlipLeading, rectStatusHeight, SCREEN_WIDTH - _sideSlipLeading, SCREEN_HEIGHT-rectStatusHeight-34)];
        }
        else{
            [self.navigationController.view setFrame:SLIP_DISTINATION_FRAME];
        }
        
        
    } completion:^(BOOL finished) {
        [_backCover setHidden:NO];
    }];
}

- (void)dismiss {
    [UIView animateWithDuration:_animationDuration animations:^{
        [self.navigationController.view setFrame:SLIP_ORIGIN_FRAME];
    } completion:^(BOOL finished) {
        [_backCover removeFromSuperview];
        [self.navigationController.view removeFromSuperview];
        [self.navigationController removeFromParentViewController];
    }];
}

- (UIView *)createTopView {
    UIView *topView = [[UIView alloc] init];
    [topView setTranslatesAutoresizingMaskIntoConstraints:NO];
    UIButton *cancelButton = [[UIButton alloc] init];
    [cancelButton setTranslatesAutoresizingMaskIntoConstraints:NO];
    [cancelButton addTarget:self action:@selector(clickBackCover:) forControlEvents:UIControlEventTouchUpInside];
    [cancelButton.titleLabel setFont:[UIFont systemFontOfSize:BOTTOM_BUTTON_FONT_SIZE]];
    [cancelButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [cancelButton setTitle:@"取消" forState:UIControlStateNormal];
    cancelButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentRight;
    [topView addSubview:cancelButton];
    NSString *Hvfl = @"H:[cancelButton(80)]-margin-|";
    NSDictionary *metrics = @{ @"margin":@20};
    //constraints
    NSDictionary *views = NSDictionaryOfVariableBindings(cancelButton);
    [topView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:Hvfl options:NSLayoutFormatAlignAllRight metrics:metrics views:views]];
    return topView;
}

- (UIView *)createBottomView {
    UIView *bottomView = [[UIView alloc] init];
    [bottomView setTranslatesAutoresizingMaskIntoConstraints:NO];
    UIButton *resetButton = [[UIButton alloc] init];
    [resetButton setTranslatesAutoresizingMaskIntoConstraints:NO];
    [resetButton addTarget:self action:@selector(clickResetButton:) forControlEvents:UIControlEventTouchUpInside];
    [resetButton.titleLabel setFont:[UIFont systemFontOfSize:BOTTOM_BUTTON_FONT_SIZE]];
    [resetButton setTitleColor:[UIColor hexColor:FILTER_BLACK_STRING] forState:UIControlStateNormal];
    
    [resetButton setTitle:@"重置" forState:UIControlStateNormal];
    [resetButton setBackgroundColor:[UIColor whiteColor]];
    [bottomView addSubview:resetButton];
    //commitButton
    UIButton *commitButton = [[UIButton alloc] init];
    [commitButton setTranslatesAutoresizingMaskIntoConstraints:NO];
    [commitButton addTarget:self action:@selector(clickCommitButton:) forControlEvents:UIControlEventTouchUpInside];
    [commitButton.titleLabel setFont:[UIFont systemFontOfSize:BOTTOM_BUTTON_FONT_SIZE]];
    [commitButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [commitButton setTitle:@"确定" forState:UIControlStateNormal];
    [commitButton setBackgroundColor:[UIColor hexColor:FILTER_RED_STRING]];
    [bottomView addSubview:commitButton];
    //constraints
    NSDictionary *views = NSDictionaryOfVariableBindings(resetButton, commitButton);
    [bottomView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[resetButton][commitButton]|" options:NSLayoutFormatAlignAllCenterY metrics:nil views:views]];
    
    [bottomView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[resetButton]-0-|" options:NSLayoutFormatAlignAllCenterY metrics:nil views:views]];
    [bottomView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[commitButton]-0-|" options:NSLayoutFormatAlignAllCenterY metrics:nil views:views]];
    [bottomView addConstraint:[NSLayoutConstraint constraintWithItem:resetButton attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:commitButton attribute:NSLayoutAttributeWidth multiplier:1.f constant:0.f]];
    return bottomView;
}

- (void)clickResetButton:(id)sender {
    _resetBlock(_dataList);
    [[NSNotificationCenter defaultCenter] postNotificationName:FILTER_NOTIFICATION_NAME_DID_RESET_DATA object:nil];
      [_mainTableView reloadData];
}

- (void)clickCommitButton:(id)sender {
    _commitBlock(_dataList);
    [[NSNotificationCenter defaultCenter] postNotificationName:FILTER_NOTIFICATION_NAME_DID_COMMIT_DATA object:nil];
}

- (void)clickBackCover:(id)sender {
    [self dismiss];
}

- (void)reloadData {
    if (_mainTableView) {
        [_mainTableView reloadData];
    }
}

#pragma mark - DataSource Delegate
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return _dataList.count;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    SideSlipModel *model = _dataList[indexPath.row];
    Class cellClazz =  NSClassFromString(model.containerCellClass);
    if ([(id)cellClazz respondsToSelector:@selector(cellHeight)]) {
        CGFloat cellHeight = objc_msgSendGetCellHeight(cellClazz, NSSelectorFromString(@"cellHeight"));
        return cellHeight;
    }
    NSString *identifier = objc_msgSendGetCellIdentifier(cellClazz, NSSelectorFromString(@"cellReuseIdentifier"));
    SideSlipBaseTableViewCell *templateCell = [self.templateCellDict objectForKey:identifier];
    if (!templateCell) {
        templateCell = objc_msgSendCreateCellWithIndexPath(cellClazz, NSSelectorFromString(@"createCellWithIndexPath:"), indexPath);
        templateCell.delegate = self;
        [self.templateCellDict setObject:templateCell forKey:identifier];
    }
    [templateCell updateFrame:self.view.frame.size.width];
    //update
    [templateCell updateCellWithModel:&model indexPath:indexPath];
    //calculate
    NSLayoutConstraint *calculateCellConstraint = [NSLayoutConstraint constraintWithItem:templateCell.contentView attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.f constant:self.view.bounds.size.width];
    [templateCell.contentView addConstraint:calculateCellConstraint];
    CGSize cellSize = [templateCell.contentView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize];
    [templateCell.contentView removeConstraint:calculateCellConstraint];
    CGFloat height = 0.f;
    if (cellSize.height>0) {
        height = cellSize.height;
    }
    
    else{
        height =  templateCell.cellHeight;
    }
    
    return height;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    SideSlipModel *model = _dataList[indexPath.row];
    Class cellClazz =  NSClassFromString(model.containerCellClass);
    NSString *identifier = objc_msgSendGetCellIdentifier(cellClazz, NSSelectorFromString(@"cellReuseIdentifier"));
    SideSlipBaseTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    if (!cell) {
        cell = objc_msgSendCreateCellWithIndexPath(cellClazz, NSSelectorFromString(@"createCellWithIndexPath:"), indexPath);
        cell.delegate = self;
    }
    cell.selectionStyle=UITableViewCellSelectionStyleNone;
    [cell updateCellWithModel:&model indexPath:indexPath];
    return cell;
}

- (void)sideSlipTableViewCellNeedsReload:(NSIndexPath *)indexPath {
    [_mainTableView reloadData];
}

- (void)sideSlipTableViewCellNeedsPushViewController:(UIViewController *)viewController animated:(BOOL)animated {
    [self.navigationController pushViewController:viewController animated:animated];
}

- (void)sideSlipTableViewCellNeedsDismissViewController:(UIViewController *)viewController animated:(BOOL)animated{
    [self presentViewController:viewController animated:NO completion:nil];
}

- (void)sideSlipTableViewCellNeedsScrollToCell:(UITableViewCell *)cell atScrollPosition:(UITableViewScrollPosition)scrollPosition animated:(BOOL)animated {
        NSIndexPath *indexPath = [_mainTableView indexPathForRowAtPoint:cell.center];
        [_mainTableView scrollToRowAtIndexPath:indexPath atScrollPosition:scrollPosition animated:animated];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

#pragma mark - GetSet
- (UITableView *)mainTableView {
    if (!_mainTableView) {
        _mainTableView = [[UITableView alloc] init];
        _mainTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        //1.视图漂移或者闪动原因：
        //因为iOS 11后系统默认开启Self-Sizing，首先要知道Self-Sizing是个什么东东。官方文档是这样解释的：大概就是说我们不用再自己去计算cell的高度了，只要设置好这两个属性，约束好布局，系统会自动计算好cell的高度。
       // IOS11以后，Self-Sizing默认开启，包括Headers, footers。如果项目中没使用estimatedRowHeight属性，在IOS11下会有奇奇怪怪的现象，因为IOS11之前，estimatedRowHeight默认为0，Self-Sizing自动打开后，contentSize和contentOffset都可能发生改变。
        _mainTableView.estimatedRowHeight = 0;
        _mainTableView.estimatedSectionHeaderHeight = 0;
       _mainTableView.estimatedSectionFooterHeight = 0;
        _mainTableView.delegate = self;
        _mainTableView.dataSource = self;
        [_mainTableView setTranslatesAutoresizingMaskIntoConstraints:NO];
        [self.view addSubview:_mainTableView];
        
    }
    return _mainTableView;
}

- (NSMutableDictionary *)templateCellDict {
    if (!_templateCellDict) {
        _templateCellDict = [NSMutableDictionary dictionary];
    }
    return _templateCellDict;
}

- (UIView *)backCover {
    if (!_backCover) {
        _backCover = [[UIView alloc] initWithFrame:CGRectMake(0, rectStatusHeight, SCREEN_WIDTH, SCREEN_HEIGHT-rectStatusHeight)];
        [_backCover setBackgroundColor:[UIColor hexColor:FILTER_BACKGROUND_COVER_COLOR]];
        [_backCover setAlpha:FILTER_BACKGROUND_COVER_ALPHA];
        [_backCover addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickBackCover:)]];
    }
    return _backCover;
}

- (UINavigationController *)filterNavigation {
    return objc_getAssociatedObject(_sponsor, _cmd);
}

- (void)setFilterNavigation:(UINavigationController *)filterNavigation {
    //让sponsor持有filterNavigation
    objc_setAssociatedObject(_sponsor, @selector(filterNavigation), filterNavigation, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (void)setDataList:(NSArray *)dataList {
    _dataList = [dataList copy];
    if (_mainTableView) {
        [_mainTableView reloadData];
    }
}
@end