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Wpds.java
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/
Wpds.java
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/* Wpds.java
Purpose:
Description:
History:
Fri Jul 17 22:10:49 2009, Created by tomyeh
Copyright (C) 2009 Potix Corporation. All Rights Reserved.
This program is distributed under LGPL Version 2.1 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
*/
package org.zkoss.zk.ui.http;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.text.DecimalFormatSymbols;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.zkoss.idom.Document;
import org.zkoss.lang.Library;
import org.zkoss.lang.Objects;
import org.zkoss.lang.Strings;
import org.zkoss.util.CacheMap;
import org.zkoss.util.Locales;
import org.zkoss.xel.ExpressionFactory;
import org.zkoss.zk.device.Devices;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.Desktop;
import org.zkoss.zk.ui.Execution;
import org.zkoss.zk.ui.Page;
import org.zkoss.zk.ui.WebApp;
import org.zkoss.zk.ui.WebApps;
import org.zkoss.zk.ui.ext.ScopeListener;
import org.zkoss.zk.ui.metainfo.ComponentDefinition;
import org.zkoss.zk.ui.metainfo.LanguageDefinition;
import org.zkoss.zk.ui.metainfo.MessageLoader;
import org.zkoss.zk.ui.metainfo.PageDefinition;
import org.zkoss.zk.xel.Evaluator;
/**
* Utilities to used with WPD files.
*
* @author tomyeh
* @since 5.0.0
*/
public class Wpds {
private static final Logger log = LoggerFactory.getLogger(Wpds.class);
/** Generates all widgets in the specified language.
* @param lang the language to look at
*/
public static String outWidgetListJavaScript(String lang) {
final StringBuffer sb = new StringBuffer(4096).append("zk.wgt.WidgetInfo.register([");
boolean first = true;
for (Iterator it = LanguageDefinition.lookup(lang).getComponentDefinitions().iterator(); it.hasNext();) {
final ComponentDefinition compdef = (ComponentDefinition) it.next();
for (Iterator e = compdef.getMoldNames().iterator(); e.hasNext();) {
final String mold = (String) e.next();
final String wgtcls = compdef.getWidgetClass(null, mold);
if (wgtcls != null) {
if (first)
first = false;
else
sb.append(',');
sb.append('\'').append(wgtcls).append('\'');
}
}
}
return sb.append("]);").toString();
}
/** Generates Locale-dependent strings in JavaScript syntax.
*/
public static final String outLocaleJavaScript() {
final Locale locale = Locales.getCurrent();
return outNumberJavaScript(locale) + outDateJavaScript(locale);
}
/**
* Generates Locale-dependent strings in JavaScript syntax.
* @since 6.5.1
*/
public static final String outLocaleJavaScript(ServletRequest request, ServletResponse response)
throws IOException {
final StringBuffer result = new StringBuffer(4096);
final WebApp webApp = WebApps.getCurrent();
final Execution exec = new FakeExecution(webApp.getServletContext(), request, response, null, null);
//the same as AjaxDevice.reloadMessages()
result.append(Devices.loadJavaScript(exec, "~./js/zk/lang/msgzk*.js"));
result.append(Wpds.outLocaleJavaScript());
for (LanguageDefinition langdef : LanguageDefinition.getByDeviceType("ajax"))
//WpdExtendlet.getDeviceType() also return "ajax" directly...
for (MessageLoader loader : langdef.getMessageLoaders())
loader.load(result, exec);
return result.toString();
}
/**
* Generates moment.js and moment-timezone-with-data.js string.
*
* @since 8.5.1
*/
public static final String outMomentJavascript(ServletRequest request, ServletResponse response)
throws IOException {
final StringBuffer result = new StringBuffer();
final WebApp webApp = WebApps.getCurrent();
final Execution exec = new FakeExecution(webApp.getServletContext(), request, response, null, null);
result.append("if (!zk.mm) { var temp; if (window.moment) { temp = window.moment; }");
result.append(Devices.loadJavaScript(exec, "~./js/zk/ext/moment.js"));
result.append(Devices.loadJavaScript(exec, "~./js/zk/ext/moment-timezone-with-data.js"));
result.append("zk.mm = window.moment; window.moment = temp; }");
String path = Library.getProperty("org.zkoss.zk.moment.timezone.path");
if (path != null) {
String json = null;
try {
json = Devices.loadFileContentAsString(exec, path);
} catch (Exception e) {
log.warn(e.getMessage());
}
if (json != null) {
result.append("var tzdata =");
result.append(json);
result.append("; zk.mm.tz.load(tzdata);");
}
}
return result.toString();
}
/** Output number relevant texts.
*/
private static final String outNumberJavaScript(Locale locale) {
final DecimalFormatSymbols symbols = new DecimalFormatSymbols(locale);
final StringBuffer sb = new StringBuffer(128);
appendAssignJavaScript(sb, "zk.GROUPING", symbols.getGroupingSeparator());
appendAssignJavaScript(sb, "zk.DECIMAL", symbols.getDecimalSeparator());
appendAssignJavaScript(sb, "zk.PERCENT", symbols.getPercent());
appendAssignJavaScript(sb, "zk.MINUS", symbols.getMinusSign());
appendAssignJavaScript(sb, "zk.PER_MILL", symbols.getPerMill());
return sb.toString();
}
private static final void appendAssignJavaScript(StringBuffer sb, String nm, char val) {
final char quot = val == '"' ? '\'' : '"';
sb.append(nm).append('=').append(quot).append(val).append(quot).append(";\n");
}
/** Output date/calendar relevant labels.
*/
private static final String outDateJavaScript(Locale locale) {
final int firstDayOfWeek = Utils.getFirstDayOfWeek();
final String djkey = locale + ":" + firstDayOfWeek;
synchronized (_datejs) {
final String djs = _datejs.get(djkey);
if (djs != null)
return djs;
}
String djs = getDateJavaScript(locale, firstDayOfWeek);
synchronized (_datejs) { //OK to race
//To minimize memory use, reuse the string if they are the same
//which is common
for (String val : _datejs.values()) {
if (val.equals(djs))
djs = val;
}
_datejs.put(djkey, djs);
}
return djs;
}
private static final String getDateJavaScript(Locale locale, int firstDayOfWeek) {
final StringBuffer sb = new StringBuffer(512);
final Calendar cal = Calendar.getInstance(locale);
cal.clear();
if (firstDayOfWeek < 0)
firstDayOfWeek = cal.getFirstDayOfWeek();
sb.append("zk.DOW_1ST=").append(firstDayOfWeek - Calendar.SUNDAY).append(";\n");
sb.append("zk.MINDAYS=").append(cal.getMinimalDaysInFirstWeek()).append(";\n");
//Note: no need to df.setTimeZone(TimeZones.getCurrent()) since
//it is used to generate locale-dependent labels
final boolean zhlang = locale.getLanguage().equals("zh");
SimpleDateFormat df = new SimpleDateFormat("E", locale);
final String[] sdow = new String[7], s2dow = new String[7];
for (int j = firstDayOfWeek, k = 0; k < 7; ++k) {
cal.set(Calendar.DAY_OF_WEEK, j);
sdow[k] = df.format(cal.getTime());
if (++j > Calendar.SATURDAY)
j = Calendar.SUNDAY;
if (zhlang) {
s2dow[k] = sdow[k].length() >= 3 ? sdow[k].substring(2) : sdow[k];
} else {
final int len = sdow[k].length();
final char cc = sdow[k].charAt(len - 1);
s2dow[k] = cc == '.' || cc == ',' ? sdow[k].substring(0, len - 1) : sdow[k];
}
}
df = new SimpleDateFormat("G", locale);
final boolean helang = locale.getLanguage().equals("iw");
if (helang) //Bug ZK-1353: Era designator contains double quote in Hebrew language
sb.append("zk.ERA='").append(df.format(new java.util.Date())).append("';\n");
else
sb.append("zk.ERA=\"").append(df.format(new java.util.Date())).append("\";\n");
Calendar ec = Calendar.getInstance(Locale.ENGLISH);
Calendar lc = Calendar.getInstance(locale);
sb.append("zk.YDELTA=").append(lc.get(Calendar.YEAR) - ec.get(Calendar.YEAR)).append(";\n");
df = new SimpleDateFormat("EEEE", locale);
final String[] fdow = new String[7];
for (int j = firstDayOfWeek, k = 0; k < 7; ++k) {
cal.set(Calendar.DAY_OF_WEEK, j);
fdow[k] = df.format(cal.getTime());
if (++j > Calendar.SATURDAY)
j = Calendar.SUNDAY;
}
df = new SimpleDateFormat("MMM", locale);
final String[] smon = new String[12], s2mon = new String[12];
for (int j = 0; j < 12; ++j) {
cal.set(Calendar.MONTH, j);
smon[j] = df.format(cal.getTime());
if (zhlang) {
s2mon[j] = smon[0].length() >= 2 ? //remove the last char
smon[j].substring(0, smon[j].length() - 1) : smon[j];
} else {
final int len = smon[j].length();
final char cc = smon[j].charAt(len - 1);
s2mon[j] = cc == '.' || cc == ',' ? smon[j].substring(0, len - 1) : smon[j];
}
}
df = new SimpleDateFormat("MMMM", locale);
final String[] fmon = new String[12];
for (int j = 0; j < 12; ++j) {
cal.set(Calendar.MONTH, j);
fmon[j] = df.format(cal.getTime());
}
appendJavaScriptArray(sb, "SDOW", sdow);
if (Objects.equals(s2dow, sdow))
sb.append("zk.S2DOW=zk.SDOW;\n");
else
appendJavaScriptArray(sb, "S2DOW", s2dow);
if (Objects.equals(fdow, sdow))
sb.append("zk.FDOW=zk.SDOW;\n");
else
appendJavaScriptArray(sb, "FDOW", fdow);
appendJavaScriptArray(sb, "SMON", smon);
if (Objects.equals(s2mon, smon))
sb.append("zk.S2MON=zk.SMON;\n");
else
appendJavaScriptArray(sb, "S2MON", s2mon);
if (Objects.equals(fmon, smon))
sb.append("zk.FMON=zk.SMON;\n");
else
appendJavaScriptArray(sb, "FMON", fmon);
//AM/PM available since ZK 3.0
df = new SimpleDateFormat("a", locale);
cal.set(Calendar.HOUR_OF_DAY, 3);
final String[] ampm = new String[2];
ampm[0] = df.format(cal.getTime());
cal.set(Calendar.HOUR_OF_DAY, 15);
ampm[1] = df.format(cal.getTime());
appendJavaScriptArray(sb, "APM", ampm);
//since ZK 6.5.5
if ("true".equals(Library.getProperty("org.zkoss.zk.ui.processMask.enabled")))
sb.append("zk.processMask=true;\n");
//since ZK 7.0.5
//since ZK 8.0.0 default is false
if ("true".equals(Library.getProperty("org.zkoss.zk.ui.invokeFirstRootForAfterKeyDown.enabled", "false")))
sb.append("if (zk.invokeFirstRootForAfterKeyDown == undefined)zk.invokeFirstRootForAfterKeyDown=true;\n");
return sb.toString();
}
private static final void appendJavaScriptArray(StringBuffer sb, String varnm, String[] vals) {
sb.append("zk.").append(varnm).append("=[");
for (int j = 0;;) {
sb.append('\'').append(Strings.escape(vals[j], Strings.ESCAPE_JAVASCRIPT)).append('\'');
if (++j >= vals.length)
break;
else
sb.append(',');
}
sb.append("];\n");
}
private static final CacheMap<String, String> _datejs;
static {
_datejs = new CacheMap<String, String>(8);
_datejs.setLifetime(24 * 60 * 60 * 1000);
}
private static final class FakeExecution extends ExecutionImpl {
FakeExecution(ServletContext ctx, ServletRequest request, ServletResponse response, Desktop desktop,
Page creating) {
super(ctx, (HttpServletRequest) request, (HttpServletResponse) response, desktop, creating);
}
//use AbstractExecution
public void onActivate() {
}
public void onDeactivate() {
}
//use PhantomExecution
public Evaluator getEvaluator(Page page, Class<? extends ExpressionFactory> expfcls) {
return null;
}
public Evaluator getEvaluator(Component page, Class expfcls) {
return null;
}
public Object evaluate(Component comp, String expr, Class expectedType) {
throw new UnsupportedOperationException();
}
public Object evaluate(Page page, String expr, Class expectedType) {
throw new UnsupportedOperationException();
}
public void include(Writer out, String page, Map<String, ?> params, int mode) throws IOException {
throw new UnsupportedOperationException();
}
public void include(String page) throws IOException {
throw new UnsupportedOperationException();
}
public void forward(Writer out, String page, Map<String, ?> params, int mode) throws IOException {
throw new UnsupportedOperationException();
}
public void forward(String page) throws IOException {
throw new UnsupportedOperationException();
}
public PageDefinition getPageDefinition(String uri) {
throw new UnsupportedOperationException();
}
public PageDefinition getPageDefinitionDirectly(String content, String ext) {
throw new UnsupportedOperationException();
}
public PageDefinition getPageDefinitionDirectly(Document content, String ext) {
throw new UnsupportedOperationException();
}
public PageDefinition getPageDefinitionDirectly(Reader reader, String ext) throws IOException {
throw new UnsupportedOperationException();
}
public boolean addScopeListener(ScopeListener listener) {
throw new UnsupportedOperationException();
}
public boolean removeScopeListener(ScopeListener listener) {
throw new UnsupportedOperationException();
}
}
}