FinderSync 扩展 - 从不调用 requestBadgeIdentifierForURL

Question

我已经测试了 Xcode 中提供的用于制作 FinderSync 扩展的模板。除了两件事外，一切都很好：

a) 在监视文件夹时，系统永远不会调用 requestBadgeIdentifierForURL 方法，因此不会设置徽章。这里出了什么问题？我假设我应该调用这个方法是正确的，例如在 Finder 中移动或滚动受监控的文件夹？顺便说一下，在此上下文中正确调用了方法 beginObservingDirectoryAtURL 和 endObservingDirectoryAtURL。

#import "FinderSync.h"

@interface FinderSync ()

@property NSURL *myFolderURL;

@end

@implementation FinderSync

- (instancetype)init {
    self = [super init];

    NSLog(@"%s launched from %@ ; compiled at %s", __PRETTY_FUNCTION__, [[NSBundle mainBundle] bundlePath], __TIME__);

    // Set up the directory we are syncing.
    self.myFolderURL = [NSURL fileURLWithPath:@"/Users/hmaass/Downloads"];
    [FIFinderSyncController defaultController].directoryURLs = [NSSet setWithObject:self.myFolderURL];

    // Set up images for our badge identifiers. For demonstration purposes, this uses off-the-shelf images.
    [[FIFinderSyncController defaultController] setBadgeImage:[NSImage imageNamed: NSImageNameColorPanel] label:@"Status One" forBadgeIdentifier:@"One"];
    [[FIFinderSyncController defaultController] setBadgeImage:[NSImage imageNamed: NSImageNameCaution] label:@"Status Two" forBadgeIdentifier:@"Two"];

    return self;
}

#pragma mark - Primary Finder Sync protocol methods

- (void)beginObservingDirectoryAtURL:(NSURL *)url {
    // The user is now seeing the container's contents.
    // If they see it in more than one view at a time, we're only told once.
    NSLog(@"beginObservingDirectoryAtURL:%@", url.filePathURL);
}


- (void)endObservingDirectoryAtURL:(NSURL *)url {
    // The user is no longer seeing the container's contents.
    NSLog(@"endObservingDirectoryAtURL:%@", url.filePathURL);
}

- (void)requestBadgeIdentifierForURL:(NSURL *)url {
    NSLog(@"requestBadgeIdentifierForURL:%@", url.filePathURL);

    // For demonstration purposes, this picks one of our two badges, or no badge at all, based on the filename.
    NSInteger whichBadge = [url.filePathURL hash] % 3;
    NSString* badgeIdentifier = @[@"", @"One", @"Two"][whichBadge];
    [[FIFinderSyncController defaultController] setBadgeIdentifier:badgeIdentifier forURL:url];
}

#pragma mark - Menu and toolbar item support

- (NSString *)toolbarItemName {
    return @"testfifi";
}

- (NSString *)toolbarItemToolTip {
    return @"testfifi: Click the toolbar item for a menu.";
}

- (NSImage *)toolbarItemImage {
    return [NSImage imageNamed:NSImageNameCaution];
}

- (NSMenu *)menuForMenuKind:(FIMenuKind)whichMenu {
    // Produce a menu for the extension.
    NSMenu *menu = [[NSMenu alloc] initWithTitle:@""];
    [menu addItemWithTitle:@"Example Menu Item" action:@selector(sampleAction:) keyEquivalent:@""];

    return menu;
}

- (IBAction)sampleAction:(id)sender {
    NSURL* target = [[FIFinderSyncController defaultController] targetedURL];
    NSArray* items = [[FIFinderSyncController defaultController] selectedItemURLs];

    NSLog(@"sampleAction: menu item: %@, target = %@, items = ", [sender title], [target filePathURL]);
    [items enumerateObjectsUsingBlock: ^(id obj, NSUInteger idx, BOOL *stop) {
        NSLog(@"    %@", [obj filePathURL]);
    }];
}

@end

b) 当运行上述模板时，我在 Xcode 的日志控制台中收到以下消息：

2015-08-25 15:33:00.300 testfifi[855:8134] Failed to connect (colorGridView) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable 2015-08-25 15:33:00.300 testfifi[855:8134] Failed to connect (view) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable 2015-08-25 15:33:00.321 testfifi[855:8134] -[FinderSync init] launched from /Users/hmaass/Library/Developer/Xcode/DerivedData/testtest-egudnxkifjxirpbrjkohnatmjuro/Build/Products/Debug/testtest.app/Contents/PlugIns/testfifi.appex ; compiled at 20:38:18

有人可以帮我删除这条消息吗？

谢谢！

Answer 1

我已经对你的问题发表了评论，但我想我应该 post 一个更完整的答案。

听起来您遇到的问题是另一个 Finder Sync 扩展 "greedily" 观察所有文件夹，很可能是 Dropbox Finder Integration。尝试禁用所有其他 Finder Sync 扩展（在系统偏好设置 -> 扩展 -> Finder 下）并重新运行你的测试。

如果这解决了问题，则问题在于 Dropbox（或其他应用）已经为您尝试监控的文件夹调用了 beginObservingDirectoryAtURL。不幸的是，Apple 的 API 缺乏智能逻辑，当存在冲突的扩展名时，谁可以监控文件夹。目前，无论哪个 Finder Sync 扩展首先启动，都将 "win".

Dropbox 贪婪地监控用户主目录下的所有文件夹。我已经写信给 Apple 和 Dropbox 来解决这个问题，但没有收到任何回复。目前，我实施的（丑陋的）解决方法是关闭已知的 "greedy" 扩展，启动我自己的扩展，然后重新启动贪婪的扩展。

Answer 2

我知道 Dropbox 使用的文件夹：~/Dropbox、~/Documents 和 ~/Desktop。我也有一个 FinderSync 应用程序，我可以在除那些以外的所有文件夹上显示徽章。幸运的是，上下文菜单似乎没有任何冲突，两个扩展的菜单项都显示了。

Answer 3

这是禁用 "greedy" Finder 同步扩展的解决方法示例代码。没什么特别的，但它确实有效。

（将此添加为单独的答案，因为它实际上只是一种解决方法，不一定是 "correct" 答案）。

public static void main(String[] args) throws Exception {
    String[] greedyFSProcessNames =
        new String[] { "com.getdropbox.dropbox.garcon" };

    List<String> disabledGreedyFSProcessNames = new ArrayList<>();

    for (String greedyFSProcessName : greedyFSProcessNames) {
        if (!_isFSProcessRunning(greedyFSProcessName)) {
            continue;
        }

        _enableFSProcess(greedyFSProcessName, false);

        disabledGreedyFSProcessNames.add(greedyFSProcessName);
    }

    _enableFSProcess("com.dejuknow.myfindersync", true);

    for (String disabledGreedyFSProcessName :
        disabledGreedyFSProcessNames) {

        _enableFSProcess(disabledGreedyFSProcessName, true);
    }
}

private static boolean _isFSProcessRunning(String processName)
    throws Exception {

    BufferedReader bufferedReader = null;

    try {
        Process process = Runtime.getRuntime().exec(
            "pluginkit -m -i" + processName);

        bufferedReader = new BufferedReader(
            new InputStreamReader(process.getInputStream()));

        String line = null;

        while ((line = bufferedReader.readLine()) != null) {
            if (line.startsWith("+")) {
                return true;
            }
            else {
                return false;
            }
        }
    }
    finally {
        if (bufferedReader != null) {
            bufferedReader.close();
        }
    }

    return false;
}

private static void _enableFSProcess(String processName, boolean enable)
    throws Exception {

    String electionArgument = null;

    if (enable) {
        electionArgument = "use";
    }
    else {
        electionArgument = "ignore";
    }

    String[] arguments = new String[] {
        "pluginkit", "-e", electionArgument, "-i", processName
    };

    while (_isFSProcessRunning(processName) != enable) {
        Process process = Runtime.getRuntime().exec(arguments);

        process.waitFor();

        Thread.sleep(100);
    }
}

FinderSync 扩展 - 从不调用 requestBadgeIdentifierForURL

FinderSync Extension - requestBadgeIdentifierForURL is never called

xcode

objective-c

osx-yosemite

findersync

osx-extensions