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//
// HPTextViewInternal.m
//
// Created by Hans Pinckaers on 29-06-10.
//
// MIT License
//
// Copyright (c) 2011 Hans Pinckaers
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#import "HPTextViewInternal.h"
@implementation HPTextViewInternal
-(void)setText:(NSString *)text
{
BOOL originalValue = self.scrollEnabled;
//If one of GrowingTextView's superviews is a scrollView, and self.scrollEnabled == NO,
//setting the text programatically will cause UIKit to search upwards until it finds a scrollView with scrollEnabled==yes
//then scroll it erratically. Setting scrollEnabled temporarily to YES prevents this.
[self setScrollEnabled:YES];
[super setText:text];
[self setScrollEnabled:originalValue];
}
-(void)setContentOffset:(CGPoint)s
{
if(self.tracking || self.decelerating){
//initiated by user...
UIEdgeInsets insets = self.contentInset;
insets.bottom = 0;
insets.top = 0;
self.contentInset = insets;
} else {
float bottomOffset = (self.contentSize.height - self.frame.size.height + self.contentInset.bottom);
if(s.y < bottomOffset && self.scrollEnabled){
UIEdgeInsets insets = self.contentInset;
insets.bottom = 8;
insets.top = 0;
self.contentInset = insets;
}
}
[super setContentOffset:s];
}
-(void)setContentInset:(UIEdgeInsets)s
{
UIEdgeInsets insets = s;
if(s.bottom>8) insets.bottom = 0;
insets.top = 0;
[super setContentInset:insets];
}
-(void)setContentSize:(CGSize)contentSize
{
// is this an iOS5 bug? Need testing!
if(self.contentSize.height > contentSize.height)
{
UIEdgeInsets insets = self.contentInset;
insets.bottom = 0;
insets.top = 0;
self.contentInset = insets;
}
[super setContentSize:contentSize];
}
- (void)dealloc {
[super dealloc];
}
@end
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