mirror of
https://github.com/vector-im/element-ios.git
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65 lines
2.2 KiB
Objective-C
65 lines
2.2 KiB
Objective-C
/*
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Copyright 2014 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "MXCGrowingTextView.h"
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@implementation MXCGrowingTextView
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// override theses two methods to fix a weird IOS 8 issue
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// it seems that the textview must be a little smaller than its superview
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// else when MaxHeght is reached, the text scrolls up because setContentSize is called
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// 1 - with a wrong contentSize < frame height so scroll to the top
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// 2 - with the right content : resetScrollPositionForIOS7 fix the content Offset
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// so center the textView in its superView
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-(void)resizeTextView:(NSInteger)newSizeH {
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if ([delegate respondsToSelector:@selector(growingTextView:willChangeHeight:)]) {
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[delegate growingTextView:self willChangeHeight:newSizeH + self.layer.cornerRadius];
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}
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CGRect internalTextViewFrame = self.frame;
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internalTextViewFrame.size.height = newSizeH + self.layer.cornerRadius; // + padding
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self.frame = internalTextViewFrame;
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internalTextViewFrame.size.height = newSizeH - self.layer.cornerRadius;
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internalTextViewFrame.origin.y = contentInset.top - contentInset.bottom;
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internalTextViewFrame.origin.x = contentInset.left;
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if(!CGRectEqualToRect(self.internalTextView.frame, internalTextViewFrame)) {
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self.internalTextView.frame = internalTextViewFrame;
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}
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}
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-(void)layoutSubviews {
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[super layoutSubviews];
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CGRect r = self.bounds;
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r.origin.y = 0;
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r.origin.x = contentInset.left;
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r.size.width -= contentInset.left + contentInset.right;
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if (self.hasText) {
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r.origin.y += self.layer.cornerRadius / 2;
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r.size.height -= self.layer.cornerRadius;
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}
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if (!CGRectEqualToRect(r, self.internalTextView.frame )) {
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self.internalTextView.frame = r;
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}
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}
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@end
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