Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
package com.github.bordertech.wcomponents.examples;
import com.github.bordertech.wcomponents.Option;
import com.github.bordertech.wcomponents.OptionGroup;
import com.github.bordertech.wcomponents.WButton;
import com.github.bordertech.wcomponents.WComponent;
import com.github.bordertech.wcomponents.WContainer;
import com.github.bordertech.wcomponents.WDropdown;
import com.github.bordertech.wcomponents.WField;
import com.github.bordertech.wcomponents.WFieldLayout;
import com.github.bordertech.wcomponents.examples.common.ExampleLookupTable.TableWithNullOption;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* This example demonstrates usage of the {@link WDropdown} component.
*
* @author Yiannis Paschalidis
* @since 1.0.0
*/
public class WDropdownExample extends WContainer {
/**
* Some array data for the drop downs.
*/
private static final String[] OPTIONS_ARRAY = {"option 1", "option 2", "option 3", "Adoption 1", "Adoption 2", "adoption 3", "the", "quick", "brown", "fox", "jumped", "over", "the", "lazy", "dogs"};
/**
* Some array data for the drop downs.
*/
private static final String[] OPTIONS_NULL_ARRAY = {null, "option 1", "option 2", "option 3", "Adoption 1", "Adoption 2", "adoption 3", "the", "quick", "brown", "fox", "jumped", "over", "the", "lazy", "dogs"};
/**
* Some list data for the drop downs.
*/
private static final List OPTIONS_LIST = Arrays.asList(OPTIONS_ARRAY);
/**
* the screen layout.
*/
private final WFieldLayout layout = new WFieldLayout();
/**
* Used to test how overlap is handled on mobiles.
*/
private static final String[] LONG_OPTIONS = {"a long option has some content which should be longer than the with of a mobile viewport",
"b long option has some content which should be longer than the with of a mobile viewport",
"c long option has some content which should be longer than the with of a mobile viewport",
"d long option has some content which should be longer than the with of a mobile viewport",
"e long option has some content which should be longer than the with of a mobile viewport",
"f long option has some content which should be longer than the with of a mobile viewport",
"g long option has some content which should be longer than the with of a mobile viewport",
"h long option has some content which should be longer than the with of a mobile viewporth",
"i long option has some content which should be longer than the with of a mobile viewport",
"j long option has some content which should be longer than the with of a mobile viewport"};
/**
* Creates a WDropdownExample.
*/
public WDropdownExample() {
List people = new ArrayList<>();
people.add(new Person("123", "Joe", "Bloggs"));
people.add(new Person("456", "Jane", "Doe"));
people.add(new Person("789", "Fred", "Nerk"));
List peopleOptions = new ArrayList<>();
for (Person person : people) {
peopleOptions.add(new PersonOption(person));
}
WDropdown dropdown = new WDropdown(OPTIONS_ARRAY);
addFieldToLayout(dropdown, "Simple drop-down", null);
dropdown = new WDropdown(OPTIONS_ARRAY);
dropdown.setSelected(OPTIONS_ARRAY[1]);
addFieldToLayout(dropdown, "Simple drop-down with default selection", null);
dropdown = new WDropdown(OPTIONS_NULL_ARRAY);
addFieldToLayout(dropdown, "Simple drop-down, with \"null\" option", null);
dropdown = new WDropdown(OPTIONS_NULL_ARRAY) {
@Override
public String getDesc(final Object option, final int index) {
if (option == null) {
return "Select one";
} else {
return super.getDesc(option, index);
}
}
};
addFieldToLayout(dropdown, "Simple drop-down, with custom \"null\" selection text", null);
dropdown = new WDropdown(people);
addFieldToLayout(dropdown, "Drop-down with a list of beans",
"This is an example dropdown with data from a non-textual source.");
dropdown = new WDropdown(peopleOptions);
addFieldToLayout(dropdown, "Drop-down with a list of options", null);
OptionGroup stringGroup = new OptionGroup("Strings", OPTIONS_LIST);
OptionGroup peopleGroup = new OptionGroup("People", people);
dropdown = new WDropdown(new Object[]{stringGroup, peopleGroup, "Ungrouped option"});
addFieldToLayout(dropdown, "Drop-down with option groups", null);
dropdown = new WDropdown(OPTIONS_ARRAY);
dropdown.setType(WDropdown.DropdownType.COMBO);
addFieldToLayout(dropdown, "Combo drop-down",
"This is an example dropdown which allows user input");
dropdown = new WDropdown("icao");
addFieldToLayout(dropdown, "Drop-down with cached data from a look up table",
"see ExampleLookupTable for data");
dropdown = new WDropdown(new TableWithNullOption("icao"));
addFieldToLayout(dropdown,
"Drop-down with cached data from a look up table with Null Option",
"see ExampleLookupTable for data");
dropdown = new WDropdown(new TableWithNullOption("icao", "Select one please"));
addFieldToLayout(dropdown, "Drop-down with cached data with a custom null option",
"see ExampleLookupTable for data");
dropdown = new WDropdown("icao");
dropdown.setType(WDropdown.DropdownType.COMBO);
addFieldToLayout(dropdown, "Combo with cached data from a look up table",
"see ExampleLookupTable for data");
dropdown = new WDropdown(new TableWithNullOption("icao"));
dropdown.setType(WDropdown.DropdownType.COMBO);
addFieldToLayout(dropdown, "Combo with cached data from a look up table with Null Option",
"Null options make no sense in COMBOs");
dropdown = new WDropdown(new TableWithNullOption("icao", "Select one please"));
dropdown.setType(WDropdown.DropdownType.COMBO);
addFieldToLayout(dropdown, "Combo with cached data with a custom null option",
"You probably shouldn't do this since it defeats the purpose of a combo.");
dropdown = new WDropdown(OPTIONS_ARRAY);
dropdown.setDisabled(true);
addFieldToLayout(dropdown, "Disabled drop-down", null);
dropdown = new WDropdown(OPTIONS_ARRAY);
dropdown.setSelected(OPTIONS_ARRAY[1]);
dropdown.setDisabled(true);
addFieldToLayout(dropdown, "Disabled drop-down with default selection", null);
dropdown = new WDropdown(OPTIONS_ARRAY);
dropdown.setType(WDropdown.DropdownType.COMBO);
dropdown.setDisabled(true);
addFieldToLayout(dropdown, "Disabled combo ", null);
dropdown = new WDropdown("icao");
dropdown.setDisabled(true);
addFieldToLayout(dropdown, "Disabled drop-down with cached data from a look up table", null);
dropdown = new WDropdown("icao");
dropdown.setType(WDropdown.DropdownType.COMBO);
dropdown.setDisabled(true);
addFieldToLayout(dropdown, "Disabled combo with cached data from a look up table", null);
dropdown = new WDropdown(LONG_OPTIONS);
addFieldToLayout(dropdown, "Dropdown with long options", null);
add(layout);
add(new WButton("submit"));
}
/**
* A simple "person" bean used by the example.
*/
private static final class Person implements Serializable {
/**
* The person's first name.
*/
private String firstName;
/**
* The person's last name.
*/
private String lastName;
/**
* The person's id.
*/
private String id;
/**
* Creates a Person bean.
*
* @param id the person id.
* @param firstName the first name.
* @param lastName the last name.
*/
private Person(final String id, final String firstName, final String lastName) {
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
}
/**
* @return Returns the firstName.
*/
public String getFirstName() {
return firstName;
}
/**
* @param firstName The firstName to set.
*/
public void setFirstName(final String firstName) {
this.firstName = firstName;
}
/**
* @return Returns the lastName.
*/
public String getLastName() {
return lastName;
}
/**
* @param lastName The lastName to set.
*/
public void setLastName(final String lastName) {
this.lastName = lastName;
}
/**
* @return Returns the id.
*/
public String getId() {
return id;
}
/**
* @param id The id to set.
*/
public void setId(final String id) {
this.id = id;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return firstName + ' ' + lastName;
}
}
/**
* Applications can wrap options inside lists in order to provide custom text and values for the drop down.
*/
private static final class PersonOption implements Option, Serializable {
/**
* The person bean for this option.
*/
private final Person person;
/**
* Creates a PersonOption.
*
* @param person the person to wrap.
*/
private PersonOption(final Person person) {
this.person = person;
}
/**
* {@inheritDoc}
*/
@Override
public String getCode() {
return person.getId();
}
/**
* {@inheritDoc}
*/
@Override
public String getDesc() {
return person.getLastName() + ", " + person.getFirstName();
}
}
/**
* Adds a field to the example's layout.
*
* @param input the input field to add.
* @param labelText the label text for the field.
* @param labelHint the optional label hint for the field.
*/
private void addFieldToLayout(final WComponent input, final String labelText,
final String labelHint) {
WField field = layout.addField(labelText, input);
if (labelHint != null) {
field.getLabel().setHint(labelHint);
}
}
}
