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https://github.com/Swiftgram/Telegram-iOS.git
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857d02347e
Also do some small refactoring and rename the PS classes to BIT to avoid any possible namespacing problems
185 lines
5.4 KiB
Objective-C
185 lines
5.4 KiB
Objective-C
/*
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* Author: Andreas Linde <mail@andreaslinde.de>
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* Peter Steinberger
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*
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* Copyright (c) 2012 HockeyApp, Bit Stadium GmbH.
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* Copyright (c) 2011-2012 Peter Steinberger.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#import "BITWebTableViewCell.h"
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@implementation BITWebTableViewCell
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static NSString* BITWebTableViewCellHtmlTemplate = @"\
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<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\
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<html xmlns=\"http://www.w3.org/1999/xhtml\">\
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<head>\
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<style type=\"text/css\">\
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body { font: 13px 'Helvetica Neue', Helvetica; color:#626262; word-wrap:break-word; padding:8px;} p {margin:0;} ul {padding-left: 18px;}\
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</style>\
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<meta name=\"viewport\" content=\"user-scalable=no width=%@\" /></head>\
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<body>\
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%@\
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</body>\
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</html>\
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";
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#pragma mark - private
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- (void)addWebView {
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if(_webViewContent) {
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CGRect webViewRect = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);
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if(!_webView) {
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_webView = [[[UIWebView alloc] initWithFrame:webViewRect] retain];
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[self addSubview:_webView];
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_webView.hidden = YES;
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_webView.backgroundColor = self.cellBackgroundColor;
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_webView.opaque = NO;
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_webView.delegate = self;
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_webView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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for(UIView* subView in _webView.subviews){
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if([subView isKindOfClass:[UIScrollView class]]){
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// disable scrolling
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UIScrollView *sv = (UIScrollView *)subView;
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sv.scrollEnabled = NO;
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sv.bounces = NO;
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// hide shadow
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for (UIView* shadowView in [subView subviews]) {
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if ([shadowView isKindOfClass:[UIImageView class]]) {
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shadowView.hidden = YES;
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}
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}
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}
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}
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}
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else
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_webView.frame = webViewRect;
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NSString *deviceWidth = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ? [NSString stringWithFormat:@"%.0f", CGRectGetWidth(self.bounds)] : @"device-width";
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//HockeySDKLog(@"%@\n%@\%@", PSWebTableViewCellHtmlTemplate, deviceWidth, self.webViewContent);
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NSString *contentHtml = [NSString stringWithFormat:BITWebTableViewCellHtmlTemplate, deviceWidth, self.webViewContent];
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[_webView loadHTMLString:contentHtml baseURL:nil];
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}
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}
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- (void)showWebView {
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_webView.hidden = NO;
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self.textLabel.text = @"";
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[self setNeedsDisplay];
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}
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- (void)removeWebView {
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if(_webView) {
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_webView.delegate = nil;
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[_webView resignFirstResponder];
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[_webView removeFromSuperview];
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[_webView release];
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}
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_webView = nil;
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[self setNeedsDisplay];
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}
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- (void)setWebViewContent:(NSString *)aWebViewContent {
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if (_webViewContent != aWebViewContent) {
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[_webViewContent release];
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_webViewContent = [aWebViewContent retain];
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// add basic accessiblity (prevents "snarfed from ivar layout") logs
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self.accessibilityLabel = aWebViewContent;
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}
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}
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#pragma mark - NSObject
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- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
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if((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) {
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self.cellBackgroundColor = [UIColor clearColor];
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}
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return self;
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}
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- (void)dealloc {
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[self removeWebView];
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[_webViewContent release], _webViewContent = nil;;
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[super dealloc];
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}
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#pragma mark - UIView
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- (void)setFrame:(CGRect)aFrame {
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BOOL needChange = !CGRectEqualToRect(aFrame, self.frame);
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[super setFrame:aFrame];
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if (needChange) {
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[self addWebView];
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}
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}
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#pragma mark - UITableViewCell
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- (void)prepareForReuse {
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[self removeWebView];
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self.webViewContent = nil;
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[super prepareForReuse];
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}
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#pragma mark - UIWebView
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- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
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if(navigationType == UIWebViewNavigationTypeOther)
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return YES;
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return NO;
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}
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- (void)webViewDidFinishLoad:(UIWebView *)webView {
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if(_webViewContent)
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[self showWebView];
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CGRect frame = _webView.frame;
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frame.size.height = 1;
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_webView.frame = frame;
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CGSize fittingSize = [_webView sizeThatFits:CGSizeZero];
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frame.size = fittingSize;
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_webView.frame = frame;
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// sizeThatFits is not reliable - use javascript for optimal height
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NSString *output = [_webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"];
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self.webViewSize = CGSizeMake(fittingSize.width, [output integerValue]);
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}
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@end
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