IconThemeCache

Class representation of icon-theme.cache file contained icon theme cache.

final

class IconThemeCache {

this(string fileName);

this(immutable(void)[] data, string fileName);

auto directories();

bool containsIcon(const(char)[] iconName);

bool containsIcon(const(char)[] iconName, const(char)[] directory);

auto iconDirectories(const(char)[] iconName);

string fileName();

bool isOutdated();

static bool isOutdated(string fileName);

auto icons();

}

Constructors

this this(string fileName): Read icon theme cache from memory mapped file and validate it.
this this(immutable(void)[] data, string fileName): Read icon theme cache from data and validate it.

Members

Functions

containsIcon bool containsIcon(const(char)[] iconName): Test if icon is listed in cache.
containsIcon bool containsIcon(const(char)[] iconName, const(char)[] directory): Test if icon is listed in cache and belongs to specified subdirectory.
directories auto directories(): Sub directories of icon theme listed in cache.
fileName string fileName(): Path of cache file.
iconDirectories auto iconDirectories(const(char)[] iconName): Find all sub directories the icon belongs to according to cache.
icons auto icons(): All icon names listed in cache.
isOutdated bool isOutdated(): Test if icon theme file is outdated, i.e. modification time of cache file is older than modification time of icon theme directory.

Static functions

isOutdated bool isOutdated(string fileName): Test if icon theme file is outdated, i.e. modification time of cache file is older than modification time of icon theme directory.

Examples

string cachePath = "./test/Tango/icon-theme.cache";
assert(cachePath.exists);

const(IconThemeCache) cache = new IconThemeCache(cachePath);
assert(cache.fileName == cachePath);
assert(cache.containsIcon("folder"));
assert(cache.containsIcon("folder", "24x24/places"));
assert(cache.containsIcon("edit-copy", "32x32/actions"));
assert(cache.iconDirectories("text-x-generic").canFind("32x32/mimetypes"));
assert(cache.directories().canFind("32x32/devices"));

auto icons = cache.icons();
assert(icons.canFind("folder"));
assert(icons.canFind("text-x-generic"));

try {
    SysTime pathAccessTime, pathModificationTime;
    SysTime fileAccessTime, fileModificationTime;

    getTimes(cachePath, fileAccessTime, fileModificationTime);
    getTimes(cachePath.dirName, pathAccessTime, pathModificationTime);

    setTimes(cachePath, pathAccessTime, pathModificationTime);
    assert(!IconThemeCache.isOutdated(cachePath));
}
catch(Exception e) {
    // some environmental error, just ignore
}

try {
    auto fileData = assumeUnique(std.file.read(cachePath));
    assertNotThrown(new IconThemeCache(fileData, cachePath));
} catch(FileException e) {

}

immutable(ubyte)[] data = [0,2,0,0];
IconThemeCacheException thrown = collectException!IconThemeCacheException(new IconThemeCache(data, cachePath));
assert(thrown !is null, "Invalid cache must throw");
assert(thrown.context == "major version");

data = [0,1,0,1];
thrown = collectException!IconThemeCacheException(new IconThemeCache(data, cachePath));
assert(thrown !is null, "Invalid cache must throw");
assert(thrown.context == "minor version");

IconThemeCache

Constructors

Members

Functions

Static functions

Examples

Meta

Source