66// Copyright (c) 2013 Seymour Dev. All rights reserved.
77//
88
9+ #import < MobileCoreServices/MobileCoreServices.h>
910#import " RWebViewController.h"
1011
11- @interface RWebViewController ()
12+ @interface RWebViewController () <UIActionSheetDelegate>
13+
14+ @property (nonatomic , strong ) UIWebView *webView;
15+
16+ @property (nonatomic , strong ) UIBarButtonItem *cancelButton;
17+
18+ @property (nonatomic , strong ) UIBarButtonItem *backButton;
19+ @property (nonatomic , strong ) UIBarButtonItem *forwardButton;
20+ @property (nonatomic , strong ) UIBarButtonItem *refreshButton;
21+ @property (nonatomic , strong ) UIBarButtonItem *stopButton;
22+ @property (nonatomic , strong ) UIBarButtonItem *moreActionButton;
23+
24+ @property (nonatomic , weak ) UIActionSheet *moreActionSheet;
25+
26+ - (void )dismiss ;
27+ - (void )showMoreActionSheet ;
28+
29+ - (void )loadStartPage ;
30+ - (void )refresh ;
31+ - (void )stopLoading ;
32+ - (void )goBack ;
33+ - (void )goForward ;
34+
35+ - (void )setButtonWithLoadingStatus : (BOOL )loading ;
36+ - (void )refreshNavigationButtonStatus ;
37+
38+ - (void )cancelButtonPressed : (id )sender ;
39+ - (void )backButtonPressed : (id )sender ;
40+ - (void )forwardButtonPressed : (id )sender ;
41+ - (void )refreshButtonPressed : (id )sender ;
42+ - (void )stopButtonPressed : (id )sender ;
43+ - (void )moreActionButtonPressed : (id )sender ;
1244
1345@end
1446
1547@implementation RWebViewController
1648
49+ #pragma mark - View control
50+
51+ - (void )dismiss
52+ {
53+ [self dismissViewControllerAnimated: YES completion: nil ];
54+ }
55+
56+ - (void )showMoreActionSheet
57+ {
58+ UIActionSheet *moreActionSheet = [[UIActionSheet alloc ] initWithTitle: nil
59+ delegate: self
60+ cancelButtonTitle: NSLocalizedString(@" Cancel" nil )
61+ destructiveButtonTitle: nil
62+ otherButtonTitles: NSLocalizedString(@" Copy link" nil ), NSLocalizedString(@" Open in Safari" nil ), nil ];
63+ self.moreActionSheet = moreActionSheet;
64+ [moreActionSheet showFromBarButtonItem: self .moreActionButton animated: YES ];
65+ }
66+
67+ #pragma mark - Web view control
68+
69+ - (void )loadStartPage
70+ {
71+ NSURLRequest *request = [NSURLRequest requestWithURL: self .startURL];
72+ [self .webView loadRequest: request];
73+ }
74+
75+ - (void )refresh
76+ {
77+ [self .webView reload ];
78+ }
79+
80+ - (void )stopLoading
81+ {
82+ [self .webView stopLoading ];
83+ }
84+
85+ - (void )goBack
86+ {
87+ if (self.webView .canGoBack ) {
88+ [self .webView goBack ];
89+ }
90+ }
91+
92+ - (void )goForward
93+ {
94+ if (self.webView .canGoForward ) {
95+ [self .webView goForward ];
96+ }
97+ }
98+
99+ #pragma mark - Toolbar items control
100+
101+ - (void )setButtonWithLoadingStatus : (BOOL )loading
102+ {
103+ NSUInteger buttonIndex = ([self .toolbarItems indexOfObject: self .refreshButton] ^ NSNotFound |
104+ [self .toolbarItems indexOfObject: self .stopButton] ^ NSNotFound ) ^ NSNotFound ;
105+ NSMutableArray *toolbarItems = self.toolbarItems .mutableCopy ;
106+ [toolbarItems replaceObjectAtIndex: buttonIndex withObject: (loading ? self .stopButton : self .refreshButton)];
107+ [self setToolbarItems: toolbarItems animated: NO ];
108+ }
109+
110+ - (void )refreshNavigationButtonStatus
111+ {
112+ self.backButton .enabled = self.webView .canGoBack ;
113+ self.forwardButton .enabled = self.webView .canGoForward ;
114+ }
115+
116+ #pragma mark - Actions
117+
118+ - (void )cancelButtonPressed : (id )sender
119+ {
120+ [self dismiss ];
121+ }
122+
123+ - (void )backButtonPressed : (id )sender
124+ {
125+ [self goBack ];
126+ }
127+
128+ - (void )forwardButtonPressed : (id )sender
129+ {
130+ [self goForward ];
131+ }
132+
133+ - (void )refreshButtonPressed : (id )sender
134+ {
135+ [self refresh ];
136+ }
137+
138+ - (void )stopButtonPressed : (id )sender
139+ {
140+ [self stopLoading ];
141+ }
142+
143+ - (void )moreActionButtonPressed : (id )sender
144+ {
145+ [self showMoreActionSheet ];
146+ }
147+
148+ #pragma mark - Life cycle
149+
17150- (id )initWithNibName : (NSString *)nibNameOrNil bundle : (NSBundle *)nibBundleOrNil
18151{
19152 self = [super initWithNibName: nibNameOrNil bundle: nibBundleOrNil];
@@ -26,7 +159,55 @@ - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
26159- (void )viewDidLoad
27160{
28161 [super viewDidLoad ];
29- // Do any additional setup after loading the view.
162+
163+ // Init navigation items.
164+
165+ self.cancelButton = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemCancel target: self action: @selector (cancelButtonPressed: )];
166+
167+ // Add navigation items.
168+
169+ self.navigationItem .leftBarButtonItem = self.cancelButton ;
170+
171+ // Init toolbar items.
172+
173+ self.backButton = [[UIBarButtonItem alloc ] initWithImage: [UIImage imageNamed: @" NavBack" style: UIBarButtonItemStylePlain target: self action: @selector (backButtonPressed: )];
174+ self.forwardButton = [[UIBarButtonItem alloc ] initWithImage: [UIImage imageNamed: @" NavForward" style: UIBarButtonItemStylePlain target: self action: @selector (forwardButtonPressed: )];
175+ self.refreshButton = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemRefresh target: self action: @selector (refreshButtonPressed: )];
176+ self.stopButton = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemStop target: self action: @selector (stopButtonPressed: )];
177+ self.moreActionButton = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemAction target: self action: @selector (moreActionButtonPressed: )];
178+
179+ // Add toolbar & toolbar items.
180+
181+ self.navigationController .toolbarHidden = NO ;
182+ UIBarButtonItem *fixedSpaceItem = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemFixedSpace target: nil action: nil ];
183+ fixedSpaceItem.width = 12 .0f ;
184+ UIBarButtonItem *flexibleSpaceItem = [[UIBarButtonItem alloc ] initWithBarButtonSystemItem: UIBarButtonSystemItemFlexibleSpace target: nil action: nil ];
185+ self.toolbarItems = @[
186+ fixedSpaceItem,
187+ self .backButton,
188+ flexibleSpaceItem,
189+ self .forwardButton,
190+ flexibleSpaceItem,
191+ self .refreshButton,
192+ flexibleSpaceItem,
193+ self .moreActionButton,
194+ fixedSpaceItem
195+ ];
196+ [self refreshNavigationButtonStatus ];
197+
198+ // Init & add web view.
199+
200+ self.webView = [[UIWebView alloc ] initWithFrame: self .view.bounds];
201+ self.webView .delegate = self;
202+ self.webView .scalesPageToFit = YES ;
203+ [self .view addSubview: self .webView];
204+ }
205+
206+ - (void )viewDidAppear : (BOOL )animated
207+ {
208+ [super viewDidAppear: animated];
209+
210+ [self loadStartPage ];
30211}
31212
32213- (void )didReceiveMemoryWarning
@@ -35,4 +216,48 @@ - (void)didReceiveMemoryWarning
35216 // Dispose of any resources that can be recreated.
36217}
37218
219+ #pragma mark - Web view delegate
220+
221+ - (void )webViewDidStartLoad : (UIWebView *)webView
222+ {
223+ if (webView == self.webView ) {
224+ [self setButtonWithLoadingStatus: YES ];
225+ [self refreshNavigationButtonStatus ];
226+ }
227+ }
228+
229+ - (void )webViewDidFinishLoad : (UIWebView *)webView
230+ {
231+ if (webView == self.webView ) {
232+ [self setButtonWithLoadingStatus: NO ];
233+ [self refreshNavigationButtonStatus ];
234+ }
235+ }
236+
237+ - (void )webView : (UIWebView *)webView didFailLoadWithError : (NSError *)error
238+ {
239+ if (webView == self.webView ) {
240+ [self setButtonWithLoadingStatus: NO ];
241+ [self refreshNavigationButtonStatus ];
242+ }
243+ }
244+
245+ #pragma mark - Action sheet delegate
246+
247+ - (void )actionSheet : (UIActionSheet *)actionSheet didDismissWithButtonIndex : (NSInteger )buttonIndex
248+ {
249+ if (actionSheet == self.moreActionSheet ) {
250+ switch (buttonIndex) {
251+ case 0 : // Copy link
252+ [[UIPasteboard generalPasteboard ] setValue: self .webView.request.URL forPasteboardType: (NSString *)kUTTypeURL ];
253+ break ;
254+ case 1 : // Open in Safari
255+ [[UIApplication sharedApplication ] openURL: self .webView.request.URL];
256+ break ;
257+ default :
258+ break ;
259+ }
260+ }
261+ }
262+
38263@end
0 commit comments