com.richtodd.android.quiltdesign.app.ThemeEditActivity.java Source code

Introduction

Here is the source code for com.richtodd.android.quiltdesign.app.ThemeEditActivity.java

Source

/* Copyright (c) 2013 Richard G. Todd.
 * Licensed under the terms of the GNU General Public License (GPL) Version 3.0.
 */

package com.richtodd.android.quiltdesign.app;

import java.security.InvalidParameterException;

import android.app.ActionBar;
import android.app.Activity;
import android.app.DialogFragment;
import android.app.Fragment;
import android.app.FragmentManager;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.view.Menu;
import android.view.MenuItem;

import com.richtodd.android.quiltdesign.block.Repository;
import com.richtodd.android.quiltdesign.block.ThemeContainer;

public class ThemeEditActivity extends Activity
        implements AlertDialogFragment.AlertDialogListener, EditNameDialogFragment.EditNameDialogListener {

    //
    // Fields
    //

    public static final String ARG_THEME_NAME = "com.richtodd.android.quiltdesign.app.ThemeEditActivity.themeName";
    private static final String KEY_CONFIRM_DELETE = "confirmDelete";
    private static final String KEY_FILE_EXISTS = "fileExists";

    private String m_themeNameArgument;

    private String m_saveAsThemeName;

    //
    // Overrides
    //

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_theme_edit);
        getActionBar().setDisplayHomeAsUpEnabled(true);

        m_themeNameArgument = getIntent().getStringExtra(ARG_THEME_NAME);

        if (savedInstanceState != null) {
            m_saveAsThemeName = savedInstanceState.getString("saveAsThemeName");
        }

        ActionBar ab = getActionBar();
        ab.setTitle("Edit Theme");
        ab.setSubtitle(getCurrentThemeName());

        FragmentManager fm = getFragmentManager();

        // Create color settings fragment.
        {
            Fragment f = fm.findFragmentById(R.id.layout_themeEditFragment);
            if (f == null) {
                f = ThemeEditFragment.create(m_themeNameArgument);
                fm.beginTransaction().add(R.id.layout_themeEditFragment, f).commit();
            }
        }
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        outState.putString("saveAsThemeName", m_saveAsThemeName);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.options_activity_theme_edit, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int itemId = item.getItemId();
        switch (itemId) {
        case android.R.id.home: {
            NavUtils.navigateUpFromSameTask(this);
            return true;
        }
        case R.id.menu_renameTheme: {
            showEditNameDialog();
            return true;
        }
        case R.id.menu_deleteTheme: {
            AlertDialogFragment dialog = AlertDialogFragment.create(KEY_CONFIRM_DELETE,
                    getString(R.string.alert_message_confirmThemeDelete), getString(R.string.alert_button_yes),
                    getString(R.string.alert_button_no));
            dialog.show(getFragmentManager(), null);
            return true;
        }
        case R.id.menu_cancelChanges: {
            getThemeEditFragment().setSaveSuppressed(true);
            finish();
            return true;
        }
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onAlertDialogPositiveClick(DialogFragment dialog, String key) throws Exception {

        if (key.equals(KEY_CONFIRM_DELETE)) {
            getThemeEditFragment().setSaveSuppressed(true);

            Repository repository = Repository.getDefaultRepository(this);
            ThemeContainer themes = repository.getThemes();
            themes.deleteTheme(m_themeNameArgument);

            finish();

        } else if (key.equals(KEY_FILE_EXISTS)) {
            showEditNameDialog();

        } else {
            throw new InvalidParameterException("Unknown key " + key);
        }
    }

    @Override
    public void onAlertDialogNegativeClick(DialogFragment dialog, String key) {
        // No action required.
    }

    @Override
    public void onEditNamePositiveClick(DialogFragment dialog, String name) throws Exception {

        Repository repository = Repository.getDefaultRepository(this);
        ThemeContainer themes = repository.getThemes();
        if (themes.themeExists(name)) {
            AlertDialogFragment alertDialog = AlertDialogFragment.create(KEY_FILE_EXISTS,
                    getString(R.string.alert_message_themeAlreadyExists),
                    getString(R.string.alert_button_acknowledge), null);
            alertDialog.show(getFragmentManager(), null);
        } else {
            m_saveAsThemeName = name;
            getThemeEditFragment().setSaveAsThemeName(m_saveAsThemeName);
        }

        ActionBar ab = getActionBar();
        ab.setSubtitle(getCurrentThemeName());
    }

    @Override
    public void onEditNameNegativeClick(DialogFragment dialog) {
        // No action required.
    }

    //
    // Private
    //

    private String getCurrentThemeName() {
        if (m_saveAsThemeName != null) {
            return m_saveAsThemeName;
        } else {
            return m_themeNameArgument;
        }
    }

    private void showEditNameDialog() {
        String themeName = getCurrentThemeName();
        EditNameDialogFragment dialog = EditNameDialogFragment.create("Theme", themeName);
        dialog.show(getFragmentManager(), null);
    }

    private ThemeEditFragment getThemeEditFragment() {
        return (ThemeEditFragment) getFragmentManager().findFragmentById(R.id.layout_themeEditFragment);
    }
}