erpsuiteios/common/customUI/commoneditor/CommonEditorAutoCompleteView.m

//
//  CommonEditorAutoCompleteView.m
//  Storage Master
//
//  Created by Ray on 12/12/2017.
//  Copyright © 2017 R&J. All rights reserved.
//

#import "CommonEditorAutoCompleteView.h"
#import "RAUtils.h"
@implementation CommonEditorAutoCompleteView

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

- (void)awakeFromNib {
    [super awakeFromNib];
    self.searchInput.delegate = nil;
    // Initialization code
}


- (IBAction)onCancelClick:(id)sender {
//    [self.active_field endEditing:true];
//    self.hidden = true;
    
//    self.searchInput.text = nil;
    [self.searchInput endEditing:true];
    
    self.arr_result = nil;
    self.hidden=true;
    [self.ResultTableView reloadData];
}
#pragma mark - TextField Delegate

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
//    autocompleteTableView.hidden = NO;
    NSString *substring = [NSString stringWithString:textField.text];
    substring = [substring stringByReplacingCharactersInRange:range withString:string];
//    [self searchAutocompleteEntriesWithSubstring:substring];
    
//    self.active_field textrangef
    
    bool canchange=[self.active_field.delegate textField:self.active_field shouldChangeCharactersInRange:range replacementString:string];
    
//    bool canchange=[self.active_field shouldChangeTextInRange:nil replacementText:string];
    if(canchange)
    {
//        [self searchAutocomplete:substring];
        
        [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(searchAutocomplete:) object:self.keyword];
        self.keyword = substring;
        [self performSelector:@selector(searchAutocomplete:) withObject:self.keyword afterDelay:0.8];
    }
    return canchange;



}
-(void) CancelSearch:(NSString*) keyword
{
    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(searchAutocomplete:) object:self.keyword];
    self.arr_result = nil;
    self.hidden=true;
    [self.ResultTableView reloadData];
}

-(void) performSearch:(NSString*) keyword
{
    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(searchAutocomplete:) object:self.keyword];
    self.keyword = keyword;
    [self performSelector:@selector(searchAutocomplete:) withObject:self.keyword afterDelay:0.8];
}

- (void)textFieldDidEndEditing:(UITextField *)textField
{
    if(self.returnValue)
        self.returnValue(textField.text);
    textField.text = nil;

}
//- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField;        // return NO to disallow editing.
//- (void)textFieldDidBeginEditing:(UITextField *)textField;           // became first responder
//- (BOOL)textFieldShouldEndEditing:(UITextField *)textField;          // return YES to allow editing to stop and to resign first responder status. NO to disallow the editing session to end
//- (void)textFieldDidEndEditing:(UITextField *)textField;             // may be called if forced even if shouldEndEditing returns NO (e.g. view removed from window) or endEditing:YES called
//- (void)textFieldDidEndEditing:(UITextField *)textField reason:(UITextFieldDidEndEditingReason)reason NS_AVAILABLE_IOS(10_0); // if implemented, called in place of textFieldDidEndEditing:
//
//- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string;   // return NO to not change text
//
//- (BOOL)textFieldShouldClear:(UITextField *)textField;               // called when clear button pressed. return NO to ignore (no notifications)
//- (BOOL)textFieldShouldReturn:(UITextField *)textField;              // called when 'return' key pressed. return NO to ignore.




-(void) searchAutocomplete:(NSString*)keyword
{
    
    if(keyword.length==0)
    {
        self.arr_result = nil;
        [self.ResultTableView reloadData];
        return;
    }
        __weak typeof(self) weakself = self;
    if(self.dataSource)
    dispatch_async(dispatch_get_global_queue(0, 0), ^{
        NSString* searchid=[[NSUUID new] UUIDString];
        weakself.lastSearchID=searchid;
//        int s=[RAUtils getRandomNumber:1 to:3];
//        sleep(s);
//        NSLog(@"search id %@ sleep %d",searchid,s);

        NSArray* arr_ret=[weakself.dataSource sync_loadCadidate:keyword ];
        
//        NSArray* arr_ret=[weakself.dataSource sync_loadCadidate:keyword search_id:weakself.lastSearchID];
//        self.arr_result =  [self.dataSource sync_loadCadidate:keyword search_id:[[NSUUID new] UUIDString]];
        dispatch_async(dispatch_get_main_queue(), ^{
            if([searchid isEqualToString:weakself.lastSearchID])
            {
                self.arr_result = arr_ret;
                [self.ResultTableView reloadData];
            }
            else
            {
                NSLog(@"expired search");
            }

            
        });
        
        //  }
    });
    
    

}
#pragma mark - TableView Delegate & DataSource

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.arr_result.count;
    //    return self.modeArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"mode_cell" forIndexPath:indexPath];
//    //    RAModel *model = self.modelist[indexPath.row];//[self.modeArray objectAtIndex:indexPath.row];
//
////    [cell setModeinfo:[self.modelist[indexPath.row] mutableCopy]];
//    //    [cell setModel:model];
//    return cell;
    
    
    static NSString *MyIdentifier = @"MyIdentifier";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
    
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1
                                      reuseIdentifier:MyIdentifier];

    }
    cell.textLabel.text = self.arr_result[indexPath.row][@"value"];
    cell.detailTextLabel.text = self.arr_result[indexPath.row][@"description"];
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 40.f;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    
    
//    if(self.returnValue)
//        self.returnValue(self.arr_result[indexPath.row][@"value"]);
    
//    self.searchInput.text = self.arr_result[indexPath.row][@"value"];
//    [self.searchInput endEditing:true];
    
    
    if(self.returnValue)
        self.returnValue(self.arr_result[indexPath.row][@"value"]);
//    self.searchInput.text = nil;
    self.arr_result = nil;
    self.hidden=true;
    [self.ResultTableView reloadData];
//    RAModeCell *cell = [tableView cellForRowAtIndexPath:indexPath];
//    //    RAModel *model = cell.model;
//    NSMutableDictionary* modeinfo= cell.modeinfo;
//
//    if ([modeinfo[@"type"] isEqualToString:@"predef_query"]) {
//        [self processPredefQueryModel:modeinfo];
//
//    } else if ([modeinfo[@"type"] isEqualToString:@"query"]) {
//        [self processQueryModel:modeinfo];
//
//    } else if ([modeinfo[@"type"] isEqualToString:@"local_func"]) {
//        [self processLocalFunModel:modeinfo];
//
//    } else if ([modeinfo[@"type"] isEqualToString:@"submode"]) {
//        [self processSubmodeModel:modeinfo];
//    }
    
}

@end