ios/chrome/browser/chrome_url_util.mm

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #import "ios/chrome/browser/chrome_url_util.h"
   6
   7 #import <UIKit/UIKit.h>
   8
   9 #include "base/logging.h"
  10 #include "base/mac/scoped_block.h"
  11 #include "base/mac/scoped_nsobject.h"
  12 #include "base/strings/string_util.h"
  13 #include "base/strings/sys_string_conversions.h"
  14 #include "ios/chrome/browser/chrome_url_constants.h"
  15 #import "ios/net/url_scheme_util.h"
  16 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
  17 #include "url/gurl.h"
  18
  19 bool UrlIsExternalFileReference(const GURL& url) {
  20   return url.SchemeIs(ios::GetChromeBrowserProvider()->GetChromeUIScheme()) &&
  21          base::LowerCaseEqualsASCII(url.host(), kChromeUIExternalFileHost);
  22 }
  23
  24 NSURL* UrlToLaunchChrome() {
  25   // Determines the target URL scheme that will launch Chrome.
  26   NSString* scheme = [[ChromeAppConstants sharedInstance] getBundleURLScheme];
  27   return [NSURL URLWithString:[NSString stringWithFormat:@"%@://", scheme]];
  28 }
  29
  30 NSURL* UrlOfChromeAppIcon(int width, int height) {
  31   NSString* url =
  32       [[ChromeAppConstants sharedInstance] getChromeAppIconURLOfWidth:width
  33                                                                height:height];
  34   return [NSURL URLWithString:url];
  35 }
  36
  37 bool UrlHasChromeScheme(const GURL& url) {
  38   return url.SchemeIs(ios::GetChromeBrowserProvider()->GetChromeUIScheme());
  39 }
  40
  41 bool UrlHasChromeScheme(NSURL* url) {
  42   return net::UrlSchemeIs(
  43       url, base::SysUTF8ToNSString(
  44                ios::GetChromeBrowserProvider()->GetChromeUIScheme()));
  45 }
  46
  47 @implementation ChromeAppConstants {
  48   base::scoped_nsobject<NSString> _callbackScheme;
  49   base::mac::ScopedBlock<AppIconURLProvider> _appIconURLProvider;
  50 }
  51
  52 + (ChromeAppConstants*)sharedInstance {
  53   static ChromeAppConstants* g_instance = [[ChromeAppConstants alloc] init];
  54   return g_instance;
  55 }
  56
  57 - (NSString*)getBundleURLScheme {
  58   if (!_callbackScheme) {
  59     NSSet* allowableSchemes =
  60         [NSSet setWithObjects:@"googlechrome", @"chromium", nil];
  61     NSDictionary* info = [[NSBundle mainBundle] infoDictionary];
  62     NSArray* urlTypes = [info objectForKey:@"CFBundleURLTypes"];
  63     for (NSDictionary* urlType in urlTypes) {
  64       DCHECK([urlType isKindOfClass:[NSDictionary class]]);
  65       NSArray* schemes = [urlType objectForKey:@"CFBundleURLSchemes"];
  66       if (!schemes)
  67         continue;
  68       DCHECK([schemes isKindOfClass:[NSArray class]]);
  69       for (NSString* scheme in schemes) {
  70         if ([allowableSchemes containsObject:scheme])
  71           _callbackScheme.reset([scheme copy]);
  72       }
  73     }
  74   }
  75   DCHECK([_callbackScheme length]);
  76   return _callbackScheme;
  77 }
  78
  79 - (NSString*)getChromeAppIconURLOfWidth:(int)width height:(int)height {
  80   if (!_appIconURLProvider) {
  81     // TODO(ios): iOS code should default to "Chromium" branding.
  82     // http://crbug.com/489270
  83     _appIconURLProvider.reset(^(int width, int height) {
  84       return [NSString
  85           stringWithFormat:@"https://%@/Icon-%dx%d-%dx.png",
  86                            @"ssl.gstatic.com/ios-apps/com.google.chrome.ios",
  87                            width, height,
  88                            [[UIScreen mainScreen] scale] == 1.0 ? 1 : 2];
  89     }, base::scoped_policy::RETAIN);
  90   }
  91   return _appIconURLProvider.get()(width, height);
  92 }
  93
  94 - (void)setCallbackSchemeForTesting:(NSString*)scheme {
  95   _callbackScheme.reset([scheme copy]);
  96 }
  97
  98 - (void)setAppIconURLProviderForTesting:(AppIconURLProvider)block {
  99   _appIconURLProvider.reset(block, base::scoped_policy::RETAIN);
 100 }
 101
 102 @end