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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| // Copyright 2012, Google Inc. | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // * Redistributions in binary form must reproduce the above | ||
| // copyright notice, this list of conditions and the following disclaimer | ||
| // in the documentation and/or other materials provided with the | ||
| // distribution. | ||
| // * Neither the name of Google Inc. nor the names of its | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| #import <Foundation/Foundation.h> | ||
|
|
||
| // This class is used to check if Google Chrome is installed in the system and | ||
| // to open a URL in Google Chrome either with or without a callback URL. | ||
| @interface OpenInChromeController : NSObject | ||
|
|
||
| // Returns a shared instance of the OpenInChromeController. | ||
| + (OpenInChromeController *)sharedInstance; | ||
|
|
||
| // Returns YES if Google Chrome is installed in the user's system. | ||
| - (BOOL)isChromeInstalled; | ||
|
|
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| // Opens a URL in Google Chrome. | ||
| - (BOOL)openInChrome:(NSURL *)url; | ||
|
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| // Open a URL in Google Chrome providing a |callbackURL| to return to the app. | ||
| // URLs from the same app will be opened in the same tab unless |createNewTab| | ||
| // is set to YES. | ||
| // |callbackURL| can be nil. | ||
| // The return value of this method is YES if the URL is successfully opened. | ||
| - (BOOL)openInChrome:(NSURL *)url | ||
| withCallbackURL:(NSURL *)callbackURL | ||
| createNewTab:(BOOL)createNewTab; | ||
|
|
||
| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| // Copyright 2012, Google Inc. | ||
| // All rights reserved. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // * Redistributions in binary form must reproduce the above | ||
| // copyright notice, this list of conditions and the following disclaimer | ||
| // in the documentation and/or other materials provided with the | ||
| // distribution. | ||
| // * Neither the name of Google Inc. nor the names of its | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
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| #import <UIKit/UIKit.h> | ||
|
|
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| #import "OpenInChromeController.h" | ||
|
|
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| static NSString * const kGoogleChromeHTTPScheme = @"googlechrome:"; | ||
| static NSString * const kGoogleChromeHTTPSScheme = @"googlechromes:"; | ||
| static NSString * const kGoogleChromeCallbackScheme = | ||
| @"googlechrome-x-callback:"; | ||
|
|
||
| static NSString * encodeByAddingPercentEscapes(NSString *input) { | ||
| NSString *encodedValue = | ||
| (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes( | ||
| kCFAllocatorDefault, | ||
| (CFStringRef)input, | ||
| NULL, | ||
| (CFStringRef)@"!*'();:@&=+$,/?%#[]", | ||
| kCFStringEncodingUTF8)); | ||
| return encodedValue; | ||
| } | ||
|
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| @implementation OpenInChromeController | ||
|
|
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| + (OpenInChromeController *)sharedInstance { | ||
| static OpenInChromeController *sharedInstance; | ||
| static dispatch_once_t onceToken; | ||
| dispatch_once(&onceToken, ^{ | ||
| sharedInstance = [[self alloc] init]; | ||
| }); | ||
| return sharedInstance; | ||
| } | ||
|
|
||
| - (BOOL)isChromeInstalled { | ||
| NSURL *simpleURL = [NSURL URLWithString:kGoogleChromeHTTPScheme]; | ||
| NSURL *callbackURL = [NSURL URLWithString:kGoogleChromeCallbackScheme]; | ||
| return [[UIApplication sharedApplication] canOpenURL:simpleURL] || | ||
| [[UIApplication sharedApplication] canOpenURL:callbackURL]; | ||
| } | ||
|
|
||
| - (BOOL)openInChrome:(NSURL *)url { | ||
| return [self openInChrome:url withCallbackURL:nil createNewTab:NO]; | ||
| } | ||
|
|
||
| - (BOOL)openInChrome:(NSURL *)url | ||
| withCallbackURL:(NSURL *)callbackURL | ||
| createNewTab:(BOOL)createNewTab { | ||
| NSURL *chromeSimpleURL = [NSURL URLWithString:kGoogleChromeHTTPScheme]; | ||
| NSURL *chromeCallbackURL = [NSURL URLWithString:kGoogleChromeCallbackScheme]; | ||
| if ([[UIApplication sharedApplication] canOpenURL:chromeCallbackURL]) { | ||
| NSString *appName = | ||
| [[NSBundle mainBundle] | ||
| objectForInfoDictionaryKey:@"CFBundleDisplayName"]; | ||
|
|
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| NSString *scheme = [url.scheme lowercaseString]; | ||
|
|
||
| // Proceed only if scheme is http or https. | ||
| if ([scheme isEqualToString:@"http"] || | ||
| [scheme isEqualToString:@"https"]) { | ||
|
|
||
| NSMutableString *chromeURLString = [NSMutableString string]; | ||
| [chromeURLString appendFormat: | ||
| @"%@//x-callback-url/open/?x-source=%@&url=%@", | ||
| kGoogleChromeCallbackScheme, | ||
| encodeByAddingPercentEscapes(appName), | ||
| encodeByAddingPercentEscapes([url absoluteString])]; | ||
| if (callbackURL) { | ||
| [chromeURLString appendFormat:@"&x-success=%@", | ||
| encodeByAddingPercentEscapes([callbackURL absoluteString])]; | ||
| } | ||
| if (createNewTab) { | ||
| [chromeURLString appendString:@"&create-new-tab"]; | ||
| } | ||
|
|
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| NSURL *chromeURL = [NSURL URLWithString:chromeURLString]; | ||
|
|
||
| // Open the URL with Google Chrome. | ||
| return [[UIApplication sharedApplication] openURL:chromeURL]; | ||
| } | ||
| } else if ([[UIApplication sharedApplication] canOpenURL:chromeSimpleURL]) { | ||
| NSString *scheme = [url.scheme lowercaseString]; | ||
|
|
||
| // Replace the URL Scheme with the Chrome equivalent. | ||
| NSString *chromeScheme = nil; | ||
| if ([scheme isEqualToString:@"http"]) { | ||
| chromeScheme = kGoogleChromeHTTPScheme; | ||
| } else if ([scheme isEqualToString:@"https"]) { | ||
| chromeScheme = kGoogleChromeHTTPSScheme; | ||
| } | ||
|
|
||
| // Proceed only if a valid Google Chrome URI Scheme is available. | ||
| if (chromeScheme) { | ||
| NSString *absoluteString = [url absoluteString]; | ||
| NSRange rangeForScheme = [absoluteString rangeOfString:@":"]; | ||
| NSString *urlNoScheme = | ||
| [absoluteString substringFromIndex:rangeForScheme.location + 1]; | ||
| NSString *chromeURLString = | ||
| [chromeScheme stringByAppendingString:urlNoScheme]; | ||
| NSURL *chromeURL = [NSURL URLWithString:chromeURLString]; | ||
|
|
||
| // Open the URL with Google Chrome. | ||
| return [[UIApplication sharedApplication] openURL:chromeURL]; | ||
| } | ||
| } | ||
| return NO; | ||
| } | ||
|
|
||
| @end |