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Diffstat (limited to 'src/com/android/calendar/ShareCalendarActivity.java')
| -rw-r--r-- | src/com/android/calendar/ShareCalendarActivity.java | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/com/android/calendar/ShareCalendarActivity.java b/src/com/android/calendar/ShareCalendarActivity.java new file mode 100644 index 00000000..cd538ca6 --- /dev/null +++ b/src/com/android/calendar/ShareCalendarActivity.java @@ -0,0 +1,229 @@ +package com.android.calendar; + +import android.app.ActionBar; +import android.app.Activity; +import android.app.FragmentManager; +import android.app.FragmentTransaction; +import android.content.Intent; +import android.content.res.Resources; +import android.net.Uri; +import android.os.Bundle; +import android.provider.CalendarContract; +import android.util.Log; +import android.view.Menu; +import android.view.MenuInflater; +import android.view.MenuItem; +import com.android.calendar.agenda.AgendaFragment; +import com.android.calendar.icalendar.IcalendarUtils; +import com.android.calendar.icalendar.VCalendar; +import com.android.calendar.icalendar.VEvent; + +import java.io.File; +import java.io.IOException; +import java.util.ArrayList; +import java.util.HashSet; + +/** + * Handles requests for sharing calendar events + * This activity returns a vcs formatted file + */ +public class ShareCalendarActivity extends Activity implements CalendarUtils.ShareEventListener { + + public static final String EXTRA_LIMIT_TO_ONE_EVENT = "EXTRA_LIMIT_TO_ONE_EVENT"; + + private static final String TAG = "ShareCalendarActivity"; + + private HashSet<CalendarUtils.Triple<Long, Long, Long>> mShareEventsList = + new HashSet<CalendarUtils.Triple<Long, Long, Long>>(); + + private ArrayList<EventInfoFragment> mEventDataFragments = new ArrayList<EventInfoFragment>(); + + private ActionBar mActionBar; + private AgendaFragment mAgendaFragment; + private long mStartMillis; + private ArrayList<Uri> mFileUris = new ArrayList<Uri>(); + private int mNumQueriesCompleted; + private boolean mShouldSelectSingleEvent; + private Resources mResources; + private String mNoSelectionMsg; + + @Override + public void onEventShared(CalendarUtils.Triple<Long, Long, Long> eventInfo) { + if (eventInfo.first < 0) return; + + mShareEventsList.add(eventInfo); + updateSubtitle(); + } + + @Override + public void onEventRemoval(long eventId) { + if (eventId < 0) return; + + CalendarUtils.Triple<Long, Long, Long> eventInfo = + new CalendarUtils.Triple<Long, Long, Long>(eventId, 0l, 0l); + mShareEventsList.remove(eventInfo); + updateSubtitle(); + } + + @Override + public void onResetShareList() { + // undo + mShareEventsList.clear(); + updateSubtitle(); + } + + public void updateSubtitle() { + int listSize = mShareEventsList.size(); + String subtitle; + // workaround for Android's poor pluralization treatment of 'zero' quantity in English + if (listSize == 0) { + subtitle = mNoSelectionMsg; + } else { + subtitle = mResources.getQuantityString(R.plurals.events_selected, + listSize, listSize); + } + mActionBar.setSubtitle(subtitle); + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + Intent intent = getIntent(); + Bundle args = intent.getExtras(); + if (args != null) { + mShouldSelectSingleEvent = args.getBoolean(EXTRA_LIMIT_TO_ONE_EVENT, false); + } + + mStartMillis = System.currentTimeMillis(); + setContentView(R.layout.simple_frame_layout); + mResources = getResources(); + + // create agenda fragment displaying the list of calendar events + FragmentManager fragmentManager = getFragmentManager(); + FragmentTransaction ft = fragmentManager.beginTransaction(); + mAgendaFragment = new AgendaFragment(mStartMillis, false, true); + mAgendaFragment.setShareModeOptions(this, mShouldSelectSingleEvent); + ft.replace(R.id.main_frame, mAgendaFragment); + ft.commit(); + + mActionBar = getActionBar(); + mActionBar.setDisplayShowTitleEnabled(true); + String title = mShouldSelectSingleEvent ? + mResources.getQuantityString(R.plurals.select_events_to_share, 1) : + mResources.getQuantityString(R.plurals.select_events_to_share, 2) ; + + mActionBar.setTitle(title); + mNoSelectionMsg = mResources.getString(R.string.no_events_selected); + updateSubtitle(); + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + MenuInflater inflater = getMenuInflater(); + inflater.inflate(R.menu.share_event_title_bar, menu); + return super.onCreateOptionsMenu(menu); + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + + case(R.id.action_done): + generateEventData(); + evalIfComplete(); + break; + + case (R.id.action_cancel): + setResultAndFinish(false); + break; + + } + return super.onOptionsItemSelected(item); + } + + // called after the data fragment's is done loading + public void queryComplete() { + mNumQueriesCompleted++; + evalIfComplete(); + } + + // used load event information for the list of selected events + private void generateEventData() { + for (CalendarUtils.Triple<Long, Long, Long> event : mShareEventsList) { + + long eventId = event.first; + long eventStartMillis = event.second; + long eventEndMillis = event.third; + + // EventInfoFragment just serves as a data fragment and is initialized with + // default arguments for parameters that don't affect model loading + EventInfoFragment eif = new EventInfoFragment(this, eventId, eventStartMillis, + eventEndMillis, CalendarContract.Attendees.ATTENDEE_STATUS_NONE, false, 0, + null); + eif.launchInNonUiMode(); + eif.startQueryingData(this); + eif.setQueryCompleteRunnable(new Runnable() { + @Override + public void run() { + // indicate model loading is complete + queryComplete(); + } + }); + + mEventDataFragments.add(eif); + } + + } + + // generates the vcs files if the data for selected events has been successfully queried + private void evalIfComplete() { + if (mNumQueriesCompleted != 0 && mNumQueriesCompleted == mEventDataFragments.size()) { + + for(EventInfoFragment event : mEventDataFragments) { + try { + // generate vcs file + VCalendar calendar = event.generateVCalendar(); + // event title serves as the file name prefix + String filePrefix = calendar.getFirstEvent().getProperty(VEvent.SUMMARY); + if (filePrefix == null || filePrefix.length() < 3) { + // default to a generic filename if event title doesn't qualify + // prefix length constraint is imposed by File#createTempFile + filePrefix = "invite"; + } + + filePrefix = filePrefix.replaceAll("\\W+", " "); + + if (!filePrefix.endsWith(" ")) { + filePrefix += " "; + } + File dir = getExternalCacheDir(); + File inviteFile = IcalendarUtils.createTempFile(filePrefix, ".vcs", dir); + inviteFile.setReadable(true, false); // set world-readable + if (IcalendarUtils.writeCalendarToFile(calendar, inviteFile)) { + mFileUris.add(Uri.fromFile(inviteFile)); + } + } catch (IOException ioe) { + break; + } + } + + setResultAndFinish(true); + + } else if (mEventDataFragments.size() < 1) { // if no events have been selected + setResultAndFinish(false); + } + } + + private void setResultAndFinish(boolean isResultAvailable) { + if (isResultAvailable) { + Intent intent = new Intent(); + intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, mFileUris); + setResult(RESULT_OK, intent); + finish(); + } else { + setResult(RESULT_CANCELED); + finish(); + } + } +} |