com.sun.javafx.application.WindowsHighContrastScheme Maven / Gradle / Ivy
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package com.sun.javafx.application;
import com.sun.javafx.PlatformUtil;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;
/**
* Enumeration of possible high contrast scheme values.
*
* For each scheme, a theme key is defined. These keys can be
* used in a resource bundle that defines the theme name values
* for supported locales.
*
* The high contrast feature may not be available on all platforms.
*/
enum WindowsHighContrastScheme {
NONE(null),
HIGH_CONTRAST_BLACK("high.contrast.black.theme"),
HIGH_CONTRAST_WHITE("high.contrast.white.theme"),
HIGH_CONTRAST_1("high.contrast.1.theme"),
HIGH_CONTRAST_2("high.contrast.2.theme");
private static List resourceBundles;
static {
if (PlatformUtil.isWindows()) {
resourceBundles = Arrays.stream(Locale.getAvailableLocales())
.map(locale -> ResourceBundle.getBundle("com/sun/glass/ui/win/themes", locale))
.distinct()
.toList();
}
}
private final String themeKey;
WindowsHighContrastScheme(String themeKey) {
this.themeKey = themeKey;
}
/**
* Given a theme name string, this method finds the possible enum constant
* for which the result of a function, applying its theme key, matches the theme name.
*
* @param themeName a string with the localized theme name (for the locale of the OS, not the JVM)
* @return the enum constant or {@code NONE} if not found
*/
static WindowsHighContrastScheme fromThemeName(String themeName) {
if (themeName == null || resourceBundles == null) {
return NONE;
}
// Iterate over all resource bundles and try to find a value that matches the theme name
// we got from the OS. We can't just look in the properties file for the current locale,
// since we might be running on a JVM with a locale that is different from the OS.
for (WindowsHighContrastScheme item : values()) {
for (ResourceBundle resourceBundle : resourceBundles) {
if (item != NONE && themeName.equalsIgnoreCase(resourceBundle.getString(item.themeKey))) {
return item;
}
}
}
return NONE;
}
}