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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/shell_integration.h"
#include "base/mac/bundle_locations.h"
#include "base/mac/foundation_util.h"
#include "base/strings/sys_string_conversions.h"
#include "chrome/common/chrome_version_info.h"
#import "third_party/mozilla/NSWorkspace+Utils.h"
ShellIntegration::DefaultWebClientSetPermission
ShellIntegration::CanSetAsDefaultBrowser() {
if (chrome::VersionInfo::GetChannel() !=
chrome::VersionInfo::CHANNEL_CANARY) {
return SET_DEFAULT_UNATTENDED;
}
return SET_DEFAULT_NOT_ALLOWED;
}
// Sets Chromium as default browser to be used by the operating system. This
// applies only for the current user. Returns false if this cannot be done, or
// if the operation fails.
bool ShellIntegration::SetAsDefaultBrowser() {
if (CanSetAsDefaultBrowser() != SET_DEFAULT_UNATTENDED)
return false;
// We really do want the outer bundle here, not the main bundle since setting
// a shortcut to Chrome as the default browser doesn't make sense.
NSString* identifier = [base::mac::OuterBundle() bundleIdentifier];
if (!identifier)
return false;
[[NSWorkspace sharedWorkspace] setDefaultBrowserWithIdentifier:identifier];
return true;
}
// Sets Chromium as the default application to be used by the operating system
// for the given protocol. This applies only for the current user. Returns false
// if this cannot be done, or if the operation fails.
bool ShellIntegration::SetAsDefaultProtocolClient(const std::string& protocol) {
if (protocol.empty())
return false;
if (CanSetAsDefaultProtocolClient() != SET_DEFAULT_UNATTENDED)
return false;
// We really do want the main bundle here since it makes sense to set an
// app shortcut as a default protocol handler.
NSString* identifier = [base::mac::MainBundle() bundleIdentifier];
if (!identifier)
return false;
NSString* protocol_ns = [NSString stringWithUTF8String:protocol.c_str()];
OSStatus return_code =
LSSetDefaultHandlerForURLScheme(base::mac::NSToCFCast(protocol_ns),
base::mac::NSToCFCast(identifier));
return return_code == noErr;
}
namespace {
// Returns true if |identifier| is the bundle id of the default browser.
bool IsIdentifierDefaultBrowser(NSString* identifier) {
NSString* default_browser =
[[NSWorkspace sharedWorkspace] defaultBrowserIdentifier];
if (!default_browser)
return false;
// We need to ensure we do the comparison case-insensitive as LS doesn't
// persist the case of our bundle id.
NSComparisonResult result =
[default_browser caseInsensitiveCompare:identifier];
return result == NSOrderedSame;
}
// Returns true if |identifier| is the bundle id of the default client
// application for the given protocol.
bool IsIdentifierDefaultProtocolClient(NSString* identifier,
NSString* protocol) {
CFStringRef default_client_cf =
LSCopyDefaultHandlerForURLScheme(base::mac::NSToCFCast(protocol));
NSString* default_client = static_cast<NSString*>(
base::mac::CFTypeRefToNSObjectAutorelease(default_client_cf));
if (!default_client)
return false;
// We need to ensure we do the comparison case-insensitive as LS doesn't
// persist the case of our bundle id.
NSComparisonResult result =
[default_client caseInsensitiveCompare:identifier];
return result == NSOrderedSame;
}
} // namespace
// static
base::string16 ShellIntegration::GetApplicationNameForProtocol(
const GURL& url) {
NSURL* ns_url = [NSURL URLWithString:
base::SysUTF8ToNSString(url.possibly_invalid_spec())];
CFURLRef openingApp = NULL;
OSStatus status = LSGetApplicationForURL((CFURLRef)ns_url,
kLSRolesAll,
NULL,
&openingApp);
if (status != noErr) {
// likely kLSApplicationNotFoundErr
return base::string16();
}
NSString* appPath = [(NSURL*)openingApp path];
CFRelease(openingApp); // NOT A BUG; LSGetApplicationForURL retains for us
NSString* appDisplayName =
[[NSFileManager defaultManager] displayNameAtPath:appPath];
return base::SysNSStringToUTF16(appDisplayName);
}
// Attempt to determine if this instance of Chrome is the default browser and
// return the appropriate state. (Defined as being the handler for HTTP/HTTPS
// protocols; we don't want to report "no" here if the user has simply chosen
// to open HTML files in a text editor and FTP links with an FTP client.)
ShellIntegration::DefaultWebClientState ShellIntegration::GetDefaultBrowser() {
// We really do want the outer bundle here, since this we want to know the
// status of the main Chrome bundle and not a shortcut.
NSString* my_identifier = [base::mac::OuterBundle() bundleIdentifier];
if (!my_identifier)
return UNKNOWN_DEFAULT;
return IsIdentifierDefaultBrowser(my_identifier) ? IS_DEFAULT : NOT_DEFAULT;
}
// Returns true if Firefox is the default browser for the current user.
bool ShellIntegration::IsFirefoxDefaultBrowser() {
return IsIdentifierDefaultBrowser(@"org.mozilla.firefox");
}
// Attempt to determine if this instance of Chrome is the default client
// application for the given protocol and return the appropriate state.
ShellIntegration::DefaultWebClientState
ShellIntegration::IsDefaultProtocolClient(const std::string& protocol) {
if (protocol.empty())
return UNKNOWN_DEFAULT;
// We really do want the main bundle here since it makes sense to set an
// app shortcut as a default protocol handler.
NSString* my_identifier = [base::mac::MainBundle() bundleIdentifier];
if (!my_identifier)
return UNKNOWN_DEFAULT;
NSString* protocol_ns = [NSString stringWithUTF8String:protocol.c_str()];
return IsIdentifierDefaultProtocolClient(my_identifier, protocol_ns) ?
IS_DEFAULT : NOT_DEFAULT;
}
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