//
// Created by Peter Steinberger on 04.02.11.
// Copyright 2011-2012 Peter Steinberger. All rights reserved.
//
// 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 "PSWebTableViewCell.h"
@implementation PSWebTableViewCell
static NSString* PSWebTableViewCellHtmlTemplate = @"\
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\
<html xmlns=\"http://www.w3.org/1999/xhtml\">\
<head>\
<style type=\"text/css\">\
body { font: 13px 'Helvetica Neue', Helvetica; word-wrap:break-word; padding:8px;} p {margin:0;} ul {padding-left: 18px;}\
</style>\
<meta name=\"viewport\" content=\"user-scalable=no width=%@\" /></head>\
<body>\
%@\
</body>\
</html>\
";
@synthesize webView = webView_;
@synthesize webViewContent = webViewContent_;
@synthesize webViewSize = webViewSize_;
@synthesize cellBackgroundColor = cellBackgroundColor_;
#pragma mark - private
- (void)addWebView {
if(webViewContent_) {
CGRect webViewRect = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);
if(!webView_) {
webView_ = [[[UIWebView alloc] initWithFrame:webViewRect] retain];
[self addSubview:webView_];
webView_.hidden = YES;
webView_.backgroundColor = self.cellBackgroundColor;
webView_.opaque = NO;
webView_.delegate = self;
webView_.autoresizingMask = UIViewAutoresizingFlexibleWidth;
for(UIView* subView in webView_.subviews){
if([subView isKindOfClass:[UIScrollView class]]){
// disable scrolling
UIScrollView *sv = (UIScrollView *)subView;
sv.scrollEnabled = NO;
sv.bounces = NO;
// hide shadow
for (UIView* shadowView in [subView subviews]) {
if ([shadowView isKindOfClass:[UIImageView class]]) {
shadowView.hidden = YES;
}
}
}
}
}
else
webView_.frame = webViewRect;
NSString *deviceWidth = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ? [NSString stringWithFormat:@"%.0f", CGRectGetWidth(self.bounds)] : @"device-width";
//HockeySDKLog(@"%@\n%@\%@", PSWebTableViewCellHtmlTemplate, deviceWidth, self.webViewContent);
NSString *contentHtml = [NSString stringWithFormat:PSWebTableViewCellHtmlTemplate, deviceWidth, self.webViewContent];
[webView_ loadHTMLString:contentHtml baseURL:nil];
}
}
- (void)showWebView {
webView_.hidden = NO;
self.textLabel.text = @"";
[self setNeedsDisplay];
}
- (void)removeWebView {
if(webView_) {
webView_.delegate = nil;
[webView_ resignFirstResponder];
[webView_ removeFromSuperview];
[webView_ release];
}
webView_ = nil;
[self setNeedsDisplay];
}
- (void)setWebViewContent:(NSString *)aWebViewContent {
if (webViewContent_ != aWebViewContent) {
[webViewContent_ release];
webViewContent_ = [aWebViewContent retain];
// add basic accessiblity (prevents "snarfed from ivar layout") logs
self.accessibilityLabel = aWebViewContent;
}
}
#pragma mark - NSObject
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
if((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) {
self.cellBackgroundColor = [UIColor clearColor];
}
return self;
}
- (void)dealloc {
[self removeWebView];
[webViewContent_ release];
[super dealloc];
}
#pragma mark - UIView
- (void)setFrame:(CGRect)aFrame {
BOOL needChange = !CGRectEqualToRect(aFrame, self.frame);
[super setFrame:aFrame];
if (needChange) {
[self addWebView];
}
}
#pragma mark - UITableViewCell
- (void)prepareForReuse {
[self removeWebView];
self.webViewContent = nil;
[super prepareForReuse];
}
#pragma mark - UIWebView
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
if(navigationType == UIWebViewNavigationTypeOther)
return YES;
return NO;
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
if(webViewContent_)
[self showWebView];
CGRect frame = webView_.frame;
frame.size.height = 1;
webView_.frame = frame;
CGSize fittingSize = [webView_ sizeThatFits:CGSizeZero];
frame.size = fittingSize;
webView_.frame = frame;
// sizeThatFits is not reliable - use javascript for optimal height
NSString *output = [webView_ stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"];
self.webViewSize = CGSizeMake(fittingSize.width, [output integerValue]);
}
@end