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| package org.apache.tapestry.form; |
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| import java.text.DateFormatSymbols; |
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| import java.text.SimpleDateFormat; |
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| import java.util.Calendar; |
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| import java.util.Date; |
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| import java.util.HashMap; |
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| import java.util.Locale; |
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| import java.util.Map; |
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| |
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| import org.apache.hivemind.Resource; |
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| import org.apache.tapestry.IAsset; |
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| import org.apache.tapestry.IMarkupWriter; |
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| import org.apache.tapestry.IRequestCycle; |
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| import org.apache.tapestry.IScript; |
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| import org.apache.tapestry.PageRenderSupport; |
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| import org.apache.tapestry.TapestryUtils; |
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| import org.apache.tapestry.engine.IScriptSource; |
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| import org.apache.tapestry.form.translator.DateTranslator; |
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| import org.apache.tapestry.valid.ValidatorException; |
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| public abstract class DatePicker extends AbstractFormComponent implements TranslatedField |
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| { |
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| public abstract Date getValue(); |
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| public abstract void setValue(Date value); |
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| public abstract boolean isDisabled(); |
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| public abstract boolean getIncludeWeek(); |
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| public abstract IAsset getIcon(); |
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| private IScript _script; |
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| |
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| private static final String SYM_NAME = "name"; |
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| private static final String SYM_FORMNAME = "formName"; |
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| private static final String SYM_MONTHNAMES = "monthNames"; |
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| private static final String SYM_SHORT_MONTHNAMES = "shortMonthNames"; |
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| private static final String SYM_WEEKDAYNAMES = "weekDayNames"; |
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| private static final String SYM_SHORT_WEEKDAYNAMES = "shortWeekDayNames"; |
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| private static final String SYM_FIRSTDAYINWEEK = "firstDayInWeek"; |
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| private static final String SYM_MINDAYSINFIRSTWEEK = "minimalDaysInFirstWeek"; |
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| private static final String SYM_FORMAT = "format"; |
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| private static final String SYM_INCL_WEEK = "includeWeek"; |
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| private static final String SYM_VALUE = "value"; |
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| private static final String SYM_BUTTONONCLICKHANDLER = "buttonOnclickHandler"; |
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| public abstract IScriptSource getScriptSource(); |
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| protected void finishLoad()
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| { |
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| super.finishLoad();
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| IScriptSource source = getScriptSource();
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| Resource location = getSpecification().getSpecificationLocation().getRelativeResource(
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| "DatePicker.script"); |
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| _script = source.getScript(location);
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| } |
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| protected void renderFormComponent(IMarkupWriter writer, IRequestCycle cycle)
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| { |
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| PageRenderSupport pageRenderSupport = TapestryUtils.getPageRenderSupport(cycle, this);
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| boolean disabled = isDisabled();
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| DateTranslator translator = (DateTranslator) getTranslator();
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| Locale locale = getPage().getLocale();
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| SimpleDateFormat format = translator.getDateFormat(locale);
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| DateFormatSymbols dfs = format.getDateFormatSymbols();
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| Calendar cal = Calendar.getInstance(locale);
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| String name = getName();
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| String value = getTranslatedFieldSupport().format(this, getValue());
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| Map symbols = new HashMap();
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| symbols.put(SYM_NAME, name);
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| symbols.put(SYM_FORMAT, format.toPattern());
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| symbols.put(SYM_INCL_WEEK, getIncludeWeek() ? Boolean.TRUE : Boolean.FALSE);
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| symbols.put(SYM_MONTHNAMES, makeStringList(dfs.getMonths(), 0, 12));
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| symbols.put(SYM_SHORT_MONTHNAMES, makeStringList(dfs.getShortMonths(), 0, 12));
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| symbols.put(SYM_WEEKDAYNAMES, makeStringList(dfs.getWeekdays(), 1, 8));
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| symbols.put(SYM_SHORT_WEEKDAYNAMES, makeStringList(dfs.getShortWeekdays(), 1, 8));
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| symbols.put(SYM_FIRSTDAYINWEEK, new Integer(cal.getFirstDayOfWeek() - 1));
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| symbols.put(SYM_MINDAYSINFIRSTWEEK, new Integer(cal.getMinimalDaysInFirstWeek()));
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| symbols.put(SYM_FORMNAME, getForm().getName());
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| symbols.put(SYM_VALUE, getValue());
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| _script.execute(cycle, pageRenderSupport, symbols);
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| renderDelegatePrefix(writer, cycle);
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| writer.beginEmpty("input");
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| writer.attribute("type", "text");
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| writer.attribute("name", name);
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| writer.attribute("value", value);
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| writer.attribute("title", format.toLocalizedPattern());
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| if (disabled)
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| writer.attribute("disabled", "disabled");
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| renderIdAttribute(writer, cycle);
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| renderDelegateAttributes(writer, cycle);
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| getTranslatedFieldSupport().renderContributions(this, writer, cycle);
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| getValidatableFieldSupport().renderContributions(this, writer, cycle);
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| renderInformalParameters(writer, cycle);
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| writer.printRaw(" ");
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| if (!disabled)
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| { |
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| writer.begin("a");
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| writer.attribute("href", (String) symbols.get(SYM_BUTTONONCLICKHANDLER));
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| } |
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| IAsset icon = getIcon();
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| writer.beginEmpty("img");
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| writer.attribute("src", icon.buildURL(cycle));
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| writer.attribute("border", 0);
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| if (!disabled)
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| writer.end();
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| renderDelegateSuffix(writer, cycle);
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| } |
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| protected void rewindFormComponent(IMarkupWriter writer, IRequestCycle cycle)
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| { |
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| String value = cycle.getParameter(getName());
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| try
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| { |
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| Date date = (Date) getTranslatedFieldSupport().parse(this, value);
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| getValidatableFieldSupport().validate(this, writer, cycle, date);
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| setValue(date);
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| } |
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| catch (ValidatorException e) |
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| { |
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| getForm().getDelegate().record(e);
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| } |
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| } |
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| private String makeStringList(String[] a, int offset, int length)
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| { |
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| StringBuffer b = new StringBuffer();
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| for (int i = offset; i < length; i++)
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| b.append('"');
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| char[] ch = a[i].toCharArray();
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| for (int j = 0; j < ch.length; j++)
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| if (ch[j] < 128)
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| { |
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| b.append(ch[j]);
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| } |
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| else |
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| { |
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| b.append(escape(ch[j]));
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| } |
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| } |
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| b.append('"');
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| if (i < length - 1)
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| { |
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| b.append(", ");
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| } |
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| } |
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| return b.toString();
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| } |
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| private static String escape(char c)
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| { |
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| StringBuffer b = new StringBuffer();
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| for (int i = 0; i < 4; i++)
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| { |
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| b.append(Integer.toHexString(c & 0x000F).toUpperCase());
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| c >>>= 4;
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| } |
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| b.append("u\\");
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| return b.reverse().toString();
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| } |
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| public abstract ValidatableFieldSupport getValidatableFieldSupport(); |
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| public abstract TranslatedFieldSupport getTranslatedFieldSupport(); |
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| public boolean isRequired()
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| { |
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| return getValidatableFieldSupport().isRequired(this);
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| } |
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| } |