WebKit/WebView.subproj/WebDefaultPolicyDelegate.m

   1 /*
   2         WebDefaultPolicyDelegate.m
   3         Copyright 2002, Apple Computer, Inc.
   4 */
   5 #import <WebKit/WebDataSource.h>
   6 #import <WebKit/WebDefaultPolicyDelegate.h>
   7 #import <WebKit/WebFrame.h>
   8 #import <WebKit/WebPolicyDelegatePrivate.h>
   9 #import <WebKit/WebView.h>
  10 #import <WebKit/WebViewPrivate.h>
  11
  12 #import <Foundation/NSURLConnection.h>
  13 #import <Foundation/NSURLRequest.h>
  14 #import <Foundation/NSURLResponse.h>
  15 #import <WebKit/WebAssertions.h>
  16
  17
  18 @implementation WebDefaultPolicyDelegate
  19
  20 static WebDefaultPolicyDelegate *sharedDelegate = nil;
  21
  22 // Return a object with vanilla implementations of the protocol's methods
  23 // Note this feature relies on our default delegate being stateless
  24 + (WebDefaultPolicyDelegate *)sharedPolicyDelegate
  25 {
  26     if (!sharedDelegate) {
  27         sharedDelegate = [[WebDefaultPolicyDelegate alloc] init];
  28     }
  29     return sharedDelegate;
  30 }
  31
  32 - (void)webView: (WebView *)wv unableToImplementPolicyWithError:(NSError *)error frame:(WebFrame *)frame
  33 {
  34     ERROR("called unableToImplementPolicyWithError:%@ inFrame:%@", error, frame);
  35 }
  36
  37
  38 - (void)webView: (WebView *)wv decidePolicyForMIMEType:(NSString *)type
  39                                                request:(NSURLRequest *)request
  40                                                  frame:(WebFrame *)frame
  41                                       decisionListener:(WebPolicyDecisionListener *)listener;
  42 {
  43     if ([[request URL] isFileURL]) {
  44         BOOL isDirectory;
  45         [[NSFileManager defaultManager] fileExistsAtPath:[[request URL] path] isDirectory:&isDirectory];
  46
  47         if (isDirectory) {
  48             [listener ignore];
  49         } else if([WebView canShowMIMEType:type]) {
  50             [listener use];
  51         } else{
  52             [listener ignore];
  53         }
  54     } else if ([WebView canShowMIMEType:type]) {
  55         [listener use];
  56     } else {
  57         [listener ignore];
  58     }
  59 }
  60
  61 - (void)webView: (WebView *)wv decidePolicyForNavigationAction:(NSDictionary *)actionInformation
  62                                                        request:(NSURLRequest *)request
  63                                                          frame:(WebFrame *)frame
  64                                               decisionListener:(WebPolicyDecisionListener *)listener
  65 {
  66     WebNavigationType navType = [[actionInformation objectForKey:WebActionNavigationTypeKey] intValue];
  67
  68     if ([WebView _canHandleRequest:request]) {
  69         [listener use];
  70     } else if (navType == WebNavigationTypePlugInRequest) {
  71         [listener use];
  72     } else {
  73         // A file URL shouldn't fall through to here, but if it did,
  74         // it would be a security risk to open it.
  75         if (![[request URL] isFileURL]) {
  76             [[NSWorkspace sharedWorkspace] openURL:[request URL]];
  77         }
  78         [listener ignore];
  79     }
  80 }
  81
  82 - (void)webView: (WebView *)wv decidePolicyForNewWindowAction:(NSDictionary *)actionInformation
  83                                                       request:(NSURLRequest *)request
  84                                                  newFrameName:(NSString *)frameName
  85                                              decisionListener:(WebPolicyDecisionListener *)listener
  86 {
  87     [listener use];
  88 }
  89
  90 // Temporary SPI needed for <rdar://problem/3951283> can view pages from the back/forward cache that should be disallowed by Parental Controls
  91 - (BOOL)webView:(WebView *)webView shouldGoToHistoryItem:(WebHistoryItem *)item
  92 {
  93     return YES;
  94 }
  95
  96 @end
  97