Android Open Source - dbfragments Edit Fragment

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2013 Yuriy Tkachenko// w  w  w.j  ava 2  s . c o  m
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package db.fragments;

import android.app.Activity;
import android.app.Fragment;
import android.database.Cursor;
import android.os.Bundle;
import android.text.InputType;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;

/**
 * This is the secondary fragment, displaying the details of a particular item.
 */
public class EditFragment extends Fragment {

  DBFragment dbfragment;
  boolean visible = false;
  boolean editable = false;

  /**
   * Create a new instance of EditFragment, initialized to show edit form for
   * 'classname'.
   */
  public static EditFragment newInstance(String class_name) {
    EditFragment f = new EditFragment();

    // Supply classname input as an argument.
    Bundle args = new Bundle();
    args.putString("classname", class_name);
    f.setArguments(args);

    return f;
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    if (container == null) {
      return null;
    }

    return makeScroller();
  }

  protected View makeScroller() {
    if (getActivity() == null) {
      visible = false;
      return null;
    }
    String class_name = getArguments().getString("classname");
    dbfragment = G.objects.get(class_name);
    visible = true;
    Activity currContext = getActivity();

    ScrollView scroller = new ScrollView(currContext);
    LinearLayout layout = new LinearLayout(currContext);
    layout.setOrientation(LinearLayout.VERTICAL);

    boolean is_choose, is_readonly;
    for (Column col : dbfragment.columns) {
      if (dbfragment.columns.indexOf(col) == 0) {
        continue;
      }
      TextView label = new TextView(currContext);
      label.setText(col.title);
      col.l_ctrl = label;
      is_choose = false;
      is_readonly = false;
      if (col.choose != null)
        is_choose = true;
      if (col.readonly != null)
        is_readonly = col.readonly.getBool(dbfragment);
      if (!col.dbfragment.equals(dbfragment))
        is_readonly = true;
      if (col.dataType == G.INTEGER) {
        if (col.foreign != null) {
          col.e_ctrl = Foreign.newInstance(currContext, false,
              col.foreign, dbfragment);
          col.e_ctrl.setEnabled(is_readonly);
        } else {
          if (is_choose) {
            col.e_ctrl = Chooser.newInstance(currContext,
                col.choose);
            col.e_ctrl.setEnabled(is_readonly);
          } else {
            col.e_ctrl = new Edit(currContext);
            ((Edit) col.e_ctrl)
                .setInputType(InputType.TYPE_CLASS_NUMBER);
            col.e_ctrl.setEnabled(is_readonly);
            ((TextView) col.e_ctrl).setSelectAllOnFocus(true);
          }
        }
      } else if (col.dataType == G.REAL) {
        col.e_ctrl = new Edit(currContext);
        ((Edit) col.e_ctrl).setInputType(InputType.TYPE_CLASS_NUMBER
            | InputType.TYPE_NUMBER_FLAG_DECIMAL);
        col.e_ctrl.setEnabled(is_readonly);
      } else if (col.dataType == G.DATE) {
        col.e_ctrl = new DateChooser(currContext);
        col.e_ctrl.setEnabled(is_readonly);
      } else { // col["type"] in (TEXT, TIMESTAMP)
        col.e_ctrl = new Edit(currContext);
        col.e_ctrl.setEnabled(is_readonly);
      }
      if (col.show != null && !col.show) {
        continue;
      }
      layout.addView(col.l_ctrl);
      layout.addView((View) col.e_ctrl);
    }

    scroller.addView(layout);
    return scroller;
  }

  @Override
  public void onStart() {
    super.onStart();
    refresh();
  }

  @Override
  public void onStop() {
    super.onStop();
    if (dbfragment != null && !dbfragment.readonly.getBool(dbfragment)
        && editable && dbfragment.crow_edit) {
      boolean cec = dbfragment.editable.getBool(dbfragment);
      dbfragment.crow_edit = cec;
      if (cec) {
        dbfragment._on_ok();
      } else {
        Toast toast = Toast.makeText(getActivity(),
            G.lstr.get("Changes not allowed"), Toast.LENGTH_SHORT);
        toast.show();
      }
    }
  }

  /**
   * Refresh data in form controls.
   */
  public void refresh() {
    editable = false;
    if (!visible) {
      makeScroller();
    }

    String cval;
    Control e_ctrl;
    if (dbfragment == null) {
      return;
    }
    Cursor c = dbfragment.cursor_adapter.getCursor();
    if (c.getCount() == 0) {
      if (getView() != null) {
        getView().setVisibility(View.INVISIBLE);
      }
      return;
    }
    if (getView() != null) {
      getView().setVisibility(View.VISIBLE);
    }
    c.moveToPosition(dbfragment.crow_gui);
    boolean is_readonly;
    int i = 0;
    for (Column col : dbfragment.columns) {
      if (dbfragment.columns.indexOf(col) == 0) {
        continue;
      }
      e_ctrl = col.e_ctrl;
      is_readonly = false;
      if (col.readonly != null)
        is_readonly = col.readonly.getBool(dbfragment);
      if (!col.dbfragment.equals(dbfragment))
        is_readonly = true;
      cval = c.getString(++i);
      e_ctrl.setText(cval);
      e_ctrl.setEnabled(!is_readonly);
    }
    editable = true;
  }

}

Java Source Code List

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