src/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/files/file_path.h"
  12 #include "base/logging.h"
  13 #include "base/mac/mac_logging.h"
  14 #include "base/mac/scoped_aedesc.h"
  15 #include "base/strings/sys_string_conversions.h"
  16 #include "grit/generated_resources.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18 #include "ui/base/l10n/l10n_util_mac.h"
  19 #include "url/gurl.h"
  20
  21 namespace platform_util {
  22
  23 void ShowItemInFolder(const base::FilePath& full_path) {
  24   DCHECK([NSThread isMainThread]);
  25   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
  26   if (!path_string || ![[NSWorkspace sharedWorkspace] selectFile:path_string
  27                                         inFileViewerRootedAtPath:nil])
  28     LOG(WARNING) << "NSWorkspace failed to select file " << full_path.value();
  29 }
  30
  31 // This function opens a file.  This doesn't use LaunchServices or NSWorkspace
  32 // because of two bugs:
  33 //  1. Incorrect app activation with com.apple.quarantine:
  34 //     http://crbug.com/32921
  35 //  2. Silent no-op for unassociated file types: http://crbug.com/50263
  36 // Instead, an AppleEvent is constructed to tell the Finder to open the
  37 // document.
  38 void OpenItem(const base::FilePath& full_path) {
  39   DCHECK([NSThread isMainThread]);
  40   NSString* path_string = base::SysUTF8ToNSString(full_path.value());
  41   if (!path_string)
  42     return;
  43
  44   // Create the target of this AppleEvent, the Finder.
  45   base::mac::ScopedAEDesc<AEAddressDesc> address;
  46   const OSType finderCreatorCode = 'MACS';
  47   OSErr status = AECreateDesc(typeApplSignature,  // type
  48                               &finderCreatorCode,  // data
  49                               sizeof(finderCreatorCode),  // dataSize
  50                               address.OutPointer());  // result
  51   if (status != noErr) {
  52     OSSTATUS_LOG(WARNING, status) << "Could not create OpenItem() AE target";
  53     return;
  54   }
  55
  56   // Build the AppleEvent data structure that instructs Finder to open files.
  57   base::mac::ScopedAEDesc<AppleEvent> theEvent;
  58   status = AECreateAppleEvent(kCoreEventClass,  // theAEEventClass
  59                               kAEOpenDocuments,  // theAEEventID
  60                               address,  // target
  61                               kAutoGenerateReturnID,  // returnID
  62                               kAnyTransactionID,  // transactionID
  63                               theEvent.OutPointer());  // result
  64   if (status != noErr) {
  65     OSSTATUS_LOG(WARNING, status) << "Could not create OpenItem() AE event";
  66     return;
  67   }
  68
  69   // Create the list of files (only ever one) to open.
  70   base::mac::ScopedAEDesc<AEDescList> fileList;
  71   status = AECreateList(NULL,  // factoringPtr
  72                         0,  // factoredSize
  73                         false,  // isRecord
  74                         fileList.OutPointer());  // resultList
  75   if (status != noErr) {
  76     OSSTATUS_LOG(WARNING, status) << "Could not create OpenItem() AE file list";
  77     return;
  78   }
  79
  80   // Add the single path to the file list.  C-style cast to avoid both a
  81   // static_cast and a const_cast to get across the toll-free bridge.
  82   CFURLRef pathURLRef = (CFURLRef)[NSURL fileURLWithPath:path_string];
  83   FSRef pathRef;
  84   if (CFURLGetFSRef(pathURLRef, &pathRef)) {
  85     status = AEPutPtr(fileList.OutPointer(),  // theAEDescList
  86                       0,  // index
  87                       typeFSRef,  // typeCode
  88                       &pathRef,  // dataPtr
  89                       sizeof(pathRef));  // dataSize
  90     if (status != noErr) {
  91       OSSTATUS_LOG(WARNING, status)
  92           << "Could not add file path to AE list in OpenItem()";
  93       return;
  94     }
  95   } else {
  96     LOG(WARNING) << "Could not get FSRef for path URL in OpenItem()";
  97     return;
  98   }
  99
 100   // Attach the file list to the AppleEvent.
 101   status = AEPutParamDesc(theEvent.OutPointer(),  // theAppleEvent
 102                           keyDirectObject,  // theAEKeyword
 103                           fileList);  // theAEDesc
 104   if (status != noErr) {
 105     OSSTATUS_LOG(WARNING, status)
 106         << "Could not put the AE file list the path in OpenItem()";
 107     return;
 108   }
 109
 110   // Send the actual event.  Do not care about the reply.
 111   base::mac::ScopedAEDesc<AppleEvent> reply;
 112   status = AESend(theEvent,  // theAppleEvent
 113                   reply.OutPointer(),  // reply
 114                   kAENoReply + kAEAlwaysInteract,  // sendMode
 115                   kAENormalPriority,  // sendPriority
 116                   kAEDefaultTimeout,  // timeOutInTicks
 117                   NULL, // idleProc
 118                   NULL);  // filterProc
 119   if (status != noErr) {
 120     OSSTATUS_LOG(WARNING, status)
 121         << "Could not send AE to Finder in OpenItem()";
 122   }
 123 }
 124
 125 void OpenExternal(const GURL& url) {
 126   DCHECK([NSThread isMainThread]);
 127   NSString* url_string = base::SysUTF8ToNSString(url.spec());
 128   NSURL* ns_url = [NSURL URLWithString:url_string];
 129   if (!ns_url || ![[NSWorkspace sharedWorkspace] openURL:ns_url])
 130     LOG(WARNING) << "NSWorkspace failed to open URL " << url;
 131 }
 132
 133 gfx::NativeWindow GetTopLevel(gfx::NativeView view) {
 134   return [view window];
 135 }
 136
 137 gfx::NativeView GetParent(gfx::NativeView view) {
 138   return nil;
 139 }
 140
 141 bool IsWindowActive(gfx::NativeWindow window) {
 142   return [window isKeyWindow] || [window isMainWindow];
 143 }
 144
 145 void ActivateWindow(gfx::NativeWindow window) {
 146   [window makeKeyAndOrderFront:nil];
 147 }
 148
 149 bool IsVisible(gfx::NativeView view) {
 150   // A reasonable approximation of how you'd expect this to behave.
 151   return (view &&
 152           ![view isHiddenOrHasHiddenAncestor] &&
 153           [view window] &&
 154           [[view window] isVisible]);
 155 }
 156
 157 bool IsSwipeTrackingFromScrollEventsEnabled() {
 158   SEL selector = @selector(isSwipeTrackingFromScrollEventsEnabled);
 159   return [NSEvent respondsToSelector:selector]
 160       && [NSEvent performSelector:selector];
 161 }
 162
 163 }  // namespace platform_util