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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.home;
import android.content.res.Resources;
import org.mozilla.gecko.home.CombinedHistoryAdapter.SectionHeader;
import org.mozilla.gecko.R;
import java.util.Calendar;
import java.util.Locale;
public class HistorySectionsHelper {
// Constants for different time sections.
private static final long MS_PER_DAY = 86400000;
private static final long MS_PER_WEEK = MS_PER_DAY * 7;
public static class SectionDateRange {
public final long start;
public final long end;
public final String displayName;
private SectionDateRange(long start, long end, String displayName) {
this.start = start;
this.end = end;
this.displayName = displayName;
}
}
/**
* Updates the time range in milliseconds covered by each section header and sets the title.
* @param res Resources for fetching string names
* @param sectionsArray Array of section bookkeeping objects
*/
public static void updateRecentSectionOffset(final Resources res, SectionDateRange[] sectionsArray) {
final long now = System.currentTimeMillis();
final Calendar cal = Calendar.getInstance();
// Update calendar to this day.
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 1);
final long currentDayMS = cal.getTimeInMillis();
// Calculate the start and end time for each section header and set its display text.
sectionsArray[SectionHeader.TODAY.ordinal()] =
new SectionDateRange(currentDayMS, now, res.getString(R.string.history_today_section));
sectionsArray[SectionHeader.YESTERDAY.ordinal()] =
new SectionDateRange(currentDayMS - MS_PER_DAY, currentDayMS, res.getString(R.string.history_yesterday_section));
sectionsArray[SectionHeader.WEEK.ordinal()] =
new SectionDateRange(currentDayMS - MS_PER_WEEK, now, res.getString(R.string.history_week_section));
// Update the calendar to beginning of next month to avoid problems calculating the last day of this month.
cal.add(Calendar.MONTH, 1);
cal.set(Calendar.DAY_OF_MONTH, cal.getMinimum(Calendar.DAY_OF_MONTH));
// Iterate over the remaining history sections, moving backwards in time.
for (int i = SectionHeader.THIS_MONTH.ordinal(); i < SectionHeader.OLDER_THAN_SIX_MONTHS.ordinal(); i++) {
final long end = cal.getTimeInMillis();
cal.add(Calendar.MONTH, -1);
final long start = cal.getTimeInMillis();
final String displayName = cal.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.getDefault());
sectionsArray[i] = new SectionDateRange(start, end, displayName);
}
sectionsArray[SectionHeader.OLDER_THAN_SIX_MONTHS.ordinal()] =
new SectionDateRange(0L, cal.getTimeInMillis(), res.getString(R.string.history_older_section));
}
}
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