You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
127 lines
4.2 KiB
127 lines
4.2 KiB
//
|
|
// FLEXWebViewController.m
|
|
// Flipboard
|
|
//
|
|
// Created by Ryan Olson on 6/10/14.
|
|
// Copyright (c) 2014 Flipboard. All rights reserved.
|
|
//
|
|
|
|
#import "FLEXWebViewController.h"
|
|
#import "FLEXUtility.h"
|
|
|
|
@interface FLEXWebViewController () <UIWebViewDelegate>
|
|
|
|
@property (nonatomic, strong) UIWebView *webView;
|
|
@property (nonatomic, strong) NSString *originalText;
|
|
|
|
@end
|
|
|
|
@implementation FLEXWebViewController
|
|
|
|
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
|
|
{
|
|
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
|
|
if (self) {
|
|
self.webView = [[UIWebView alloc] init];
|
|
self.webView.delegate = self;
|
|
self.webView.dataDetectorTypes = UIDataDetectorTypeLink;
|
|
self.webView.scalesPageToFit = YES;
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (id)initWithText:(NSString *)text
|
|
{
|
|
self = [self initWithNibName:nil bundle:nil];
|
|
if (self) {
|
|
self.originalText = text;
|
|
NSString *htmlString = [NSString stringWithFormat:@"<head><meta name='viewport' content='initial-scale=1.0'></head><body><pre>%@</pre></body>", [FLEXUtility stringByEscapingHTMLEntitiesInString:text]];
|
|
[self.webView loadHTMLString:htmlString baseURL:nil];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (id)initWithURL:(NSURL *)url
|
|
{
|
|
self = [self initWithNibName:nil bundle:nil];
|
|
if (self) {
|
|
NSURLRequest *request = [NSURLRequest requestWithURL:url];
|
|
[self.webView loadRequest:request];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (void)dealloc
|
|
{
|
|
// UIWebView's delegate is assign so we need to clear it manually.
|
|
if (_webView.delegate == self) {
|
|
_webView.delegate = nil;
|
|
}
|
|
}
|
|
|
|
- (void)viewDidLoad
|
|
{
|
|
[super viewDidLoad];
|
|
|
|
[self.view addSubview:self.webView];
|
|
self.webView.frame = self.view.bounds;
|
|
self.webView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
|
|
|
|
if ([self.originalText length] > 0) {
|
|
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Copy" style:UIBarButtonItemStylePlain target:self action:@selector(copyButtonTapped:)];
|
|
}
|
|
}
|
|
|
|
- (void)copyButtonTapped:(id)sender
|
|
{
|
|
[[UIPasteboard generalPasteboard] setString:self.originalText];
|
|
}
|
|
|
|
|
|
#pragma mark - UIWebView Delegate
|
|
|
|
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
|
|
{
|
|
BOOL shouldStart = NO;
|
|
if (navigationType == UIWebViewNavigationTypeOther) {
|
|
// Allow the initial load
|
|
shouldStart = YES;
|
|
} else {
|
|
// For clicked links, push another web view controller onto the navigation stack so that hitting the back button works as expected.
|
|
// Don't allow the current web view do handle the navigation.
|
|
FLEXWebViewController *webVC = [[[self class] alloc] initWithURL:[request URL]];
|
|
webVC.title = [[request URL] absoluteString];
|
|
[self.navigationController pushViewController:webVC animated:YES];
|
|
}
|
|
return shouldStart;
|
|
}
|
|
|
|
|
|
#pragma mark - Class Helpers
|
|
|
|
+ (BOOL)supportsPathExtension:(NSString *)extension
|
|
{
|
|
BOOL supported = NO;
|
|
NSSet<NSString *> *supportedExtensions = [self webViewSupportedPathExtensions];
|
|
if ([supportedExtensions containsObject:[extension lowercaseString]]) {
|
|
supported = YES;
|
|
}
|
|
return supported;
|
|
}
|
|
|
|
+ (NSSet<NSString *> *)webViewSupportedPathExtensions
|
|
{
|
|
static NSSet<NSString *> *pathExtenstions = nil;
|
|
static dispatch_once_t onceToken;
|
|
dispatch_once(&onceToken, ^{
|
|
// Note that this is not exhaustive, but all these extensions should work well in the web view.
|
|
// See https://developer.apple.com/library/ios/documentation/AppleApplications/Reference/SafariWebContent/CreatingContentforSafarioniPhone/CreatingContentforSafarioniPhone.html#//apple_ref/doc/uid/TP40006482-SW7
|
|
pathExtenstions = [NSSet<NSString *> setWithArray:@[@"jpg", @"jpeg", @"png", @"gif", @"pdf", @"svg", @"tiff", @"3gp", @"3gpp", @"3g2",
|
|
@"3gp2", @"aiff", @"aif", @"aifc", @"cdda", @"amr", @"mp3", @"swa", @"mp4", @"mpeg",
|
|
@"mpg", @"mp3", @"wav", @"bwf", @"m4a", @"m4b", @"m4p", @"mov", @"qt", @"mqv", @"m4v"]];
|
|
|
|
});
|
|
return pathExtenstions;
|
|
}
|
|
|
|
@end
|