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190 lines
6.1 KiB
Objective-C
190 lines
6.1 KiB
Objective-C
//
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// PSWebTableViewCell.m
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// HockeyDemo
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//
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// Created by Peter Steinberger on 04.02.11.
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// Copyright 2011 Peter Steinberger. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// 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, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import "PSWebTableViewCell.h"
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#import "BWGlobal.h"
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@implementation PSWebTableViewCell
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static NSString* PSWebTableViewCellHtmlTemplate = @"\
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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; 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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@synthesize webView = webView_;
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@synthesize webViewContent = webViewContent_;
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@synthesize webViewSize = webViewSize_;
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@synthesize cellBackgroundColor = cellBackgroundColor_;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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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:@"%d", CGRectGetWidth(self.bounds)] : @"device-width";
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//BWHockeyLog(@"%@\n%@\%@", PSWebTableViewCellHtmlTemplate, deviceWidth, self.webViewContent);
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NSString *contentHtml = [NSString stringWithFormat:PSWebTableViewCellHtmlTemplate, 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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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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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];
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[super dealloc];
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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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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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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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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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark -
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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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