chrome/browser/platform_util_mac.mm

   1 // Copyright (c) 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 #include "chrome/browser/platform_util.h"
   6
   7 #include <Carbon/Carbon.h>
   8 #import <Cocoa/Cocoa.h>
   9 #include <CoreServices/CoreServices.h>
  10
  11 #include "base/bind.h"
  12 #include "base/files/file_path.h"
  13 #include "base/files/file_util.h"
  14 #include "base/logging.h"
  15 #include "base/mac/mac_logging.h"
  16 #import "base/mac/mac_util.h"
  17 #include "base/mac/scoped_aedesc.h"
  18 #import "base/mac/sdk_forward_declarations.h"
  19 #include "base/strings/sys_string_conversions.h"
  20 #include "chrome/browser/platform_util_internal.h"
  21 #include "content/public/browser/browser_thread.h"
  22 #include "url/gurl.h"
  23
  24 namespace platform_util {
  25
  26 void ShowItemInFolder(Profile* profile, const base::FilePath& full_path) {
  27   DCHECK([NSThread isMainThread]);
  28   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
  29   if (!path_string || ![[NSWorkspace sharedWorkspace] selectFile:path_string
  30                                         inFileViewerRootedAtPath:nil])
  31     LOG(WARNING) << "NSWorkspace failed to select file " << full_path.value();
  32 }
  33
  34 void OpenFileOnMainThread(const base::FilePath& full_path) {
  35   DCHECK([NSThread isMainThread]);
  36   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
  37   if (!path_string)
  38     return;
  39
  40   // On Mavericks or later, NSWorkspaceLaunchWithErrorPresentation will
  41   // properly handle Finder activation for quarantined files
  42   // (http://crbug.com/32921) and unassociated file types
  43   // (http://crbug.com/50263).
  44   if (base::mac::IsOSMavericksOrLater()) {
  45     NSURL* url = [NSURL fileURLWithPath:path_string];
  46     if (!url)
  47       return;
  48
  49     const NSWorkspaceLaunchOptions launch_options =
  50         NSWorkspaceLaunchAsync | NSWorkspaceLaunchWithErrorPresentation;
  51     [[NSWorkspace sharedWorkspace] openURLs:@[ url ]
  52                     withAppBundleIdentifier:nil
  53                                     options:launch_options
  54              additionalEventParamDescriptor:nil
  55                           launchIdentifiers:NULL];
  56     return;
  57   }
  58
  59   // On older OSes, both LaunchServices and NSWorkspace will fail silently for
  60   // the two cases described above. On those platforms, use an AppleEvent to
  61   // instruct the Finder to open the file.
  62
  63   // Create the target of this AppleEvent, the Finder.
  64   base::mac::ScopedAEDesc<AEAddressDesc> address;
  65   const OSType finderCreatorCode = 'MACS';
  66   OSErr status = AECreateDesc(typeApplSignature,  // type
  67                               &finderCreatorCode,  // data
  68                               sizeof(finderCreatorCode),  // dataSize
  69                               address.OutPointer());  // result
  70   if (status != noErr) {
  71     OSSTATUS_LOG(WARNING, status) << "Could not create OpenFile() AE target";
  72     return;
  73   }
  74
  75   // Build the AppleEvent data structure that instructs Finder to open files.
  76   base::mac::ScopedAEDesc<AppleEvent> theEvent;
  77   status = AECreateAppleEvent(kCoreEventClass,  // theAEEventClass
  78                               kAEOpenDocuments,  // theAEEventID
  79                               address,  // target
  80                               kAutoGenerateReturnID,  // returnID
  81                               kAnyTransactionID,  // transactionID
  82                               theEvent.OutPointer());  // result
  83   if (status != noErr) {
  84     OSSTATUS_LOG(WARNING, status) << "Could not create OpenFile() AE event";
  85     return;
  86   }
  87
  88   // Create the list of files (only ever one) to open.
  89   base::mac::ScopedAEDesc<AEDescList> fileList;
  90   status = AECreateList(NULL,  // factoringPtr
  91                         0,  // factoredSize
  92                         false,  // isRecord
  93                         fileList.OutPointer());  // resultList
  94   if (status != noErr) {
  95     OSSTATUS_LOG(WARNING, status) << "Could not create OpenFile() AE file list";
  96     return;
  97   }
  98
  99   // Add the single path to the file list.  C-style cast to avoid both a
 100   // static_cast and a const_cast to get across the toll-free bridge.
 101   CFURLRef pathURLRef = (CFURLRef)[NSURL fileURLWithPath:path_string];
 102   FSRef pathRef;
 103   if (CFURLGetFSRef(pathURLRef, &pathRef)) {
 104     status = AEPutPtr(fileList.OutPointer(),  // theAEDescList
 105                       0,  // index
 106                       typeFSRef,  // typeCode
 107                       &pathRef,  // dataPtr
 108                       sizeof(pathRef));  // dataSize
 109     if (status != noErr) {
 110       OSSTATUS_LOG(WARNING, status)
 111           << "Could not add file path to AE list in OpenFile()";
 112       return;
 113     }
 114   } else {
 115     LOG(WARNING) << "Could not get FSRef for path URL in OpenFile()";
 116     return;
 117   }
 118
 119   // Attach the file list to the AppleEvent.
 120   status = AEPutParamDesc(theEvent.OutPointer(),  // theAppleEvent
 121                           keyDirectObject,  // theAEKeyword
 122                           fileList);  // theAEDesc
 123   if (status != noErr) {
 124     OSSTATUS_LOG(WARNING, status)
 125         << "Could not put the AE file list the path in OpenFile()";
 126     return;
 127   }
 128
 129   // Send the actual event.  Do not care about the reply.
 130   base::mac::ScopedAEDesc<AppleEvent> reply;
 131   status = AESend(theEvent,  // theAppleEvent
 132                   reply.OutPointer(),  // reply
 133                   kAENoReply + kAEAlwaysInteract,  // sendMode
 134                   kAENormalPriority,  // sendPriority
 135                   kAEDefaultTimeout,  // timeOutInTicks
 136                   NULL, // idleProc
 137                   NULL);  // filterProc
 138   if (status != noErr) {
 139     OSSTATUS_LOG(WARNING, status)
 140         << "Could not send AE to Finder in OpenFile()";
 141   }
 142 }
 143
 144 namespace internal {
 145
 146 void PlatformOpenVerifiedItem(const base::FilePath& path, OpenItemType type) {
 147   switch (type) {
 148     case OPEN_FILE:
 149       content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
 150                                        base::Bind(&OpenFileOnMainThread, path));
 151       return;
 152     case OPEN_FOLDER:
 153       NSString* path_string = base::SysUTF8ToNSString(path.value());
 154       if (!path_string)
 155         return;
 156       // Note that there exists a TOCTOU race between the time that |path| was
 157       // verified as being a directory and when NSWorkspace invokes Finder (or
 158       // alternative) to open |path_string|.
 159       [[NSWorkspace sharedWorkspace] openFile:path_string];
 160       return;
 161   }
 162 }
 163
 164 }  // namespace internal
 165
 166 void OpenExternal(Profile* profile, const GURL& url) {
 167   DCHECK([NSThread isMainThread]);
 168   NSString* url_string = base::SysUTF8ToNSString(url.spec());
 169   NSURL* ns_url = [NSURL URLWithString:url_string];
 170   if (!ns_url || ![[NSWorkspace sharedWorkspace] openURL:ns_url])
 171     LOG(WARNING) << "NSWorkspace failed to open URL " << url;
 172 }
 173
 174 gfx::NativeWindow GetTopLevel(gfx::NativeView view) {
 175   return [view window];
 176 }
 177
 178 gfx::NativeView GetViewForWindow(gfx::NativeWindow window) {
 179   DCHECK(window);
 180   DCHECK([window contentView]);
 181   return [window contentView];
 182 }
 183
 184 gfx::NativeView GetParent(gfx::NativeView view) {
 185   return nil;
 186 }
 187
 188 bool IsWindowActive(gfx::NativeWindow window) {
 189   return [window isKeyWindow] || [window isMainWindow];
 190 }
 191
 192 void ActivateWindow(gfx::NativeWindow window) {
 193   [window makeKeyAndOrderFront:nil];
 194 }
 195
 196 bool IsVisible(gfx::NativeView view) {
 197   // A reasonable approximation of how you'd expect this to behave.
 198   return (view &&
 199           ![view isHiddenOrHasHiddenAncestor] &&
 200           [view window] &&
 201           [[view window] isVisible]);
 202 }
 203
 204 bool IsSwipeTrackingFromScrollEventsEnabled() {
 205   SEL selector = @selector(isSwipeTrackingFromScrollEventsEnabled);
 206   return [NSEvent respondsToSelector:selector]
 207       && [NSEvent performSelector:selector];
 208 }
 209
 210 }  // namespace platform_util