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Wallpaper (macOS): extracts image path from NSData Configuration field

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Also moves NSWorkspace method to the last method to try

Fixes #2559
This commit is contained in:
Carter Li
2026-09-03 09:43:07 +08:00
parent 20597bff00
commit ce61783c4b
1 changed files with 104 additions and 58 deletions
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src/detection/wallpaper/wallpaper_apple.m
+104 -58
View File
@@ -5,79 +5,125 @@
#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
const char* ffDetectWallpaper(FFstrbuf* result)
{
{
// Reliable for user-picked static images.
NSURL* url = [NSWorkspace.sharedWorkspace desktopImageURLForScreen:NSScreen.mainScreen];
if (url.fileURL && ![url.path isEqualToString:@"/System/Library/CoreServices/DefaultDesktop.heic"] /* dynamic wallpapers */)
{
ffStrbufSetS(result, url.path.UTF8String);
return nullptr;
}
const char* detectFromPlist(FFstrbuf* result) {
// For Sonoma and later (macOS 14.0+)
// https://github.com/JohnCoates/Aerial/issues/1332
NSError* error;
NSString* fileName = [NSString stringWithFormat:@"file://%s/Library/Application Support/com.apple.wallpaper/Store/Index.plist", instance.state.platform.homeDir.chars];
NSDictionary* dict = [NSDictionary dictionaryWithContentsOfURL:[NSURL URLWithString:fileName]
error:&error];
if (error) {
return "Failed to read wallpaper plist file";
}
{
// For Sonoma
// https://github.com/JohnCoates/Aerial/issues/1332
NSError* error;
NSString* fileName = [NSString stringWithFormat:@"file://%s/Library/Application Support/com.apple.wallpaper/Store/Index.plist", instance.state.platform.homeDir.chars];
NSDictionary* dict = [NSDictionary dictionaryWithContentsOfURL:[NSURL URLWithString:fileName]
error:&error];
if (!error)
{
NSArray* choices = [dict valueForKeyPath:@"SystemDefault.Desktop.Content.Choices"];
if (choices.count > 0)
{
NSDictionary* choice = choices[0];
NSArray* files = choice[@"Files"];
if (files.count > 0)
{
NSString* file = files[0][@"relative"];
ffStrbufAppendS(result, [NSURL URLWithString:file].path.UTF8String);
}
else
{
NSString* provider = choice[@"Provider"];
NSString* builtinPrefix = @"com.apple.wallpaper.choice.";
if ([provider hasPrefix:builtinPrefix])
provider = [provider substringFromIndex:builtinPrefix.length];
if ([provider isEqualToString:@"sonoma"])
ffStrbufSetStatic(result, "macOS Sonoma");
else if ([provider isEqualToString:@"aerials"]) // Most builtin aerial wallpapers are private
ffStrbufSetStatic(result, "Built-in aerial photography");
else
ffStrbufAppendF(result, "Built-in %s wallpaper", provider.UTF8String);
NSArray* choices = [dict valueForKeyPath:@"SystemDefault.Desktop.Content.Choices"];
if (choices.count > 0) {
NSDictionary* choice = choices[0];
NSArray* files = choice[@"Files"];
if (files.count > 0) {
NSString* file = files[0][@"relative"];
ffStrbufSetS(result, [NSURL URLWithString:file].path.UTF8String);
}
if (result->length == 0) {
NSData* configData = choice[@"Configuration"];
if (configData && configData.length > 0) {
NSError* plistError = nil;
NSDictionary* configPlist = [NSPropertyListSerialization propertyListWithData:configData
options:NSPropertyListImmutable
format:NULL
error:&plistError];
if (!plistError && [configPlist isKindOfClass:NSDictionary.class]) {
NSDictionary* urlDict = configPlist[@"url"];
if ([urlDict isKindOfClass:NSDictionary.class]) {
NSString* relativeUrlString = urlDict[@"relative"];
if ([relativeUrlString isKindOfClass:[NSString class]]) {
NSURL* fileUrl = [NSURL URLWithString:relativeUrlString];
if (fileUrl.fileURL) {
ffStrbufSetS(result, fileUrl.path.UTF8String);
}
}
}
}
}
}
if (result->length == 0) {
NSString* provider = choice[@"Provider"];
if ([provider isKindOfClass:NSString.class]) {
NSString* builtinPrefix = @"com.apple.wallpaper.choice.";
if ([provider hasPrefix:builtinPrefix]) {
provider = [provider substringFromIndex:builtinPrefix.length];
}
// macOS internal wallpapers
if ([provider isEqualToString:@"aerials"]) { // Most builtin aerial wallpapers are private
ffStrbufSetStatic(result, "Built-in aerial photography");
} else if ([provider isEqualToString:@"default"]) {
ffStrbufSetStatic(result, "macOS Default Wallpaper");
} else {
ffStrbufSetF(result, "Built-in %s wallpaper", provider.UTF8String);
}
}
if (result->length > 0)
return nullptr;
}
}
if (result->length == 0) {
return "Failed to detect wallpaper from plist";
}
return nullptr;
}
#ifdef FF_HAVE_SQLITE3
{
// For Ventura
// https://stackoverflow.com/questions/301215/getting-desktop-background-on-mac
FF_STRBUF_AUTO_DESTROY path = ffStrbufCreateCopy(&instance.state.platform.homeDir);
ffStrbufAppendS(&path, "Library/Application Support/Dock/desktoppicture.db");
if (ffSettingsGetSQLite3String(path.chars,
#ifdef FF_HAVE_SQLITE3
const char* detectFromSQLite(FFstrbuf* result) {
// For Ventura
// https://stackoverflow.com/questions/301215/getting-desktop-background-on-mac
FF_STRBUF_AUTO_DESTROY path = ffStrbufCreateCopy(&instance.state.platform.homeDir);
ffStrbufAppendS(&path, "Library/Application Support/Dock/desktoppicture.db");
if (ffSettingsGetSQLite3String(path.chars,
"SELECT value\n"
"FROM preferences\n"
"JOIN data ON preferences.data_id=data.ROWID\n"
"JOIN pictures ON preferences.picture_id=pictures.ROWID\n"
"JOIN displays ON pictures.display_id=displays.ROWID\n"
"JOIN spaces ON pictures.space_id=spaces.ROWID\n"
"WHERE display_id=1 AND space_id=1 AND key=1", result)
)
return nullptr;
"WHERE display_id=1 AND space_id=1 AND key=1",
result)) {
return nullptr;
}
return "Failed to detect wallpaper from SQLite database";
}
#endif
const char* detectFromNSWorkspace(FFstrbuf* result) {
// Reliable for user-picked static images.
NSScreen* mainScreen = NSScreen.mainScreen;
if (!mainScreen) {
return "Failed to detect wallpaper from NSWorkspace: No main screen found";
}
#endif
if (ffOsascript("tell application \"Finder\" to get POSIX path of (get desktop picture as alias)", result))
NSURL* url = [NSWorkspace.sharedWorkspace desktopImageURLForScreen:mainScreen];
if (url.fileURL) {
ffStrbufSetS(result, url.path.UTF8String);
return nullptr;
}
return "All detection methods failed";
return "Failed to detect wallpaper from NSWorkspace";
}
const char* ffDetectWallpaper(FFstrbuf* result) {
const char* error;
if (@available(macOS 14.0, *)) {
error = detectFromPlist(result);
} else {
#ifdef FF_HAVE_SQLITE3
error = detectFromSQLite(result);
#else
error = detectFromNSWorkspace(result);
#endif
}
return error;
}