package com.vaadin.tests.components.orderedlayout;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import com.vaadin.annotations.Theme;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractReindeerTestUI;
import com.vaadin.tests.util.TestUtils;
import com.vaadin.ui.AbstractOrderedLayout;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.v7.data.Property.ValueChangeEvent;
import com.vaadin.v7.data.Property.ValueChangeListener;
import com.vaadin.v7.ui.NativeSelect;
@Theme("tests-components")
public class OrderedLayoutCases extends AbstractReindeerTestUI {
private static final String[] dimensionValues = { "-1px", "5px", "350px",
"800px", "100%", "50%" };
private static class SampleChild extends VerticalLayout {
public SampleChild(int i) {
addStyleName("sampleChild");
addStyleName("sampleChild" + i);
addComponent(createSimpleSelector("Child width",
new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
setWidth(event.getProperty().getValue().toString());
}
}, dimensionValues));
addComponent(createSimpleSelector("Child height",
new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
setHeight(
event.getProperty().getValue().toString());
}
}, dimensionValues));
addComponent(
createSimpleSelector("Caption", new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
String value = event.getProperty().getValue()
.toString();
if (value.length() == 0) {
setCaption(null);
} else if (value.equals("Long")) {
setCaption(
"A rather long caption just to see what happens");
} else {
setCaption(value);
}
}
}, "", "Short", "Long"));
addComponent(createSimpleSelector("Expand ratio",
new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
AbstractOrderedLayout parent = (AbstractOrderedLayout) getParent();
if (parent == null) {
return;
}
String value = event.getProperty().getValue()
.toString();
parent.setExpandRatio(SampleChild.this,
Float.parseFloat(value));
}
}, "0", "1", "2"));
// Why is Alignment not an enum? Now we have to use reflection just
// to get the different values as hardcoding is never an option! ;)
List<String> alignmentValues = new ArrayList<>();
Field[] fields = Alignment.class.getDeclaredFields();
for (Field field : fields) {
if (field.getType() == Alignment.class) {
alignmentValues.add(field.getName());
}
}
addComponent(createSimpleSelector("Alignment",
new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
String value = event.getProperty().getValue()
.toString();
AlignmentHandler parent = (AlignmentHandler) getParent();
if (parent == null) {
return;
}
try {
Field field = Alignment.class
.getDeclaredField(value);
Alignment alignment = (Alignment) field
.get(null);
parent.setComponentAlignment(SampleChild.this,
alignment);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}, alignmentValues, "TOP_LEFT")); // Sorry for not using
// more reflection magic
// just to find the
// default value...
}
}
private AbstractOrderedLayout currentLayout;
private HorizontalLayout sizeBar;
@Override
protected void setup(VaadinRequest request) {
TestUtils.injectCSS(getUI(),
".sampleChild, .theLayout {border: 1px solid black;}"
+ ".sampleChild1 {background: aqua;}"
+ ".sampleChild2 {background: yellow;}"
+ ".sampleChild3 {background: lightgrey;}");
currentLayout = new HorizontalLayout();
for (int i = 0; i < 3; i++) {
currentLayout.addComponent(new SampleChild(i + 1));
}
sizeBar = new HorizontalLayout();
sizeBar.setSpacing(true);
sizeBar.addComponent(
createSimpleSelector("Layout width", new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
currentLayout.setWidth(
event.getProperty().getValue().toString());
}
}, dimensionValues));
sizeBar.addComponent(createSimpleSelector("Layout height",
new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
currentLayout.setHeight(
event.getProperty().getValue().toString());
}
}, dimensionValues));
sizeBar.addComponent(
createSimpleSelector("Spacing", new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
currentLayout.setSpacing(Boolean.parseBoolean(
event.getProperty().getValue().toString()));
}
}, "false", "true"));
sizeBar.addComponent(
createSimpleSelector("Margin", new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
currentLayout.setMargin(Boolean.parseBoolean(
event.getProperty().getValue().toString()));
}
}, "false", "true"));
sizeBar.addComponent(
createSimpleSelector("Direction", new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
Object value = event.getProperty().getValue();
AbstractOrderedLayout newLayout;
if (value.equals("Horizontal")) {
newLayout = new HorizontalLayout();
} else {
newLayout = new VerticalLayout();
}
while (currentLayout.getComponentCount() > 0) {
Component child = currentLayout.getComponent(0);
Alignment alignment = currentLayout
.getComponentAlignment(child);
float expRatio = currentLayout
.getExpandRatio(child);
newLayout.addComponent(child);
newLayout.setExpandRatio(child, expRatio);
newLayout.setComponentAlignment(child, alignment);
}
newLayout.setStyleName("theLayout");
newLayout.setHeight(currentLayout.getHeight(),
currentLayout.getHeightUnits());
newLayout.setWidth(currentLayout.getWidth(),
currentLayout.getWidthUnits());
newLayout.setMargin(currentLayout.getMargin());
newLayout.setSpacing(currentLayout.isSpacing());
getLayout().replaceComponent(currentLayout, newLayout);
getLayout().setExpandRatio(newLayout, 1);
currentLayout = newLayout;
}
}, "Horizontal", "Vertical"));
HorizontalLayout caseBar = new HorizontalLayout();
caseBar.addComponent(
new Button("Undefined without relative", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
setState(sizeBar, 2, 1);
// width: 350px to middle child
setChildState(1, 0, 2);
// middle center allign to middle child
setChildState(1, 4, 5);
// long captions to right child
setChildState(2, 2, 2);
}
}));
caseBar.addComponent(
new Button("Undefined with relative", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// width: 100% to middle child
setChildState(1, 0, 4);
}
}));
caseBar.addComponent(
new Button("Fixed with overflow", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// layout width: 350px
setState(sizeBar, 0, 2);
// layout margin enabled
setState(sizeBar, 3, 1);
}
}));
caseBar.addComponent(
new Button("Fixed with extra space", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Layout width: 800px
setState(sizeBar, 0, 3);
// layout margin enabled
setState(sizeBar, 3, 1);
// width: 350px to middle child
setChildState(1, 0, 2);
// short caption for middle child
setChildState(1, 2, 1);
// top center align for middle child
setChildState(1, 4, 2);
}
}));
caseBar.addComponent(
new Button("Expand with alignment", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Layout width: 800px
setState(sizeBar, 0, 3);
// Layout height: 350px
setState(sizeBar, 1, 2);
// Expand: 1 to middle child
setChildState(1, 3, 1);
// Align bottom left to middle child
setChildState(1, 4, 6);
// Long caption to middle child
setChildState(1, 2, 2);
}
}));
caseBar.addComponent(
new Button("Multiple expands", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Layout width: 800px
setState(sizeBar, 0, 3);
// Layout height: 350px
setState(sizeBar, 1, 2);
// Long caption to left child
setChildState(0, 2, 2);
// Width 350px to middle child
setChildState(1, 0, 2);
// Apply to left and middle child
for (int i = 0; i < 2; i++) {
// Expand: 1
setChildState(i, 3, 1);
// Align: middle center
setChildState(i, 4, 5);
}
}
}));
caseBar.addComponent(
new Button("Fixed + relative height", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Layout height: 100%
setState(sizeBar, 1, 4);
// Height: 350px to left child
setChildState(0, 1, 2);
// Height: 100% to middle child
setChildState(1, 1, 4);
// Short caption to middle child
setChildState(1, 2, 1);
// Alignment: bottom left to right child
setChildState(2, 4, 7);
}
}));
caseBar.addComponent(
new Button("Undefined + relative height", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Height: 350px to left child
setChildState(0, 1, 2);
// Short caption to left child
setChildState(0, 2, 1);
// Height: 100% to middle child
setChildState(1, 1, 4);
}
}));
caseBar.addComponent(
new Button("Undefined + alignments", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Height: 350px to left child
setChildState(0, 1, 2);
// Short caption to left child
setChildState(0, 2, 1);
// Alignment: bottom left to right child
setChildState(2, 4, 7);
}
}));
caseBar.addComponent(new Button("Relative child without expand",
new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
resetState();
// Width 800px
setState(sizeBar, 0, 3);
// First child 100% wide
setChildState(0, 0, 4);
// Second child expand 1
setChildState(1, 3, 1);
}
}));
/*
* Hidden for not to avoid changing screenshots, functionality is still
* available by adding case=9 to the query string...
*/
caseBar.getComponent(9).setVisible(false);
caseBar.setSpacing(true);
addComponent(caseBar);
addComponent(sizeBar);
addComponent(currentLayout);
getLayout().setSpacing(true);
getContent().setSizeFull();
getLayout().setSizeFull();
getLayout().setExpandRatio(currentLayout, 1);
String caseParameter = request.getParameter("case");
if (caseParameter != null) {
int caseIndex = Integer.parseInt(caseParameter);
Button button = (Button) caseBar.getComponent(caseIndex);
button.click();
}
}
private void resetState() {
for (int i = 0; i < sizeBar.getComponentCount(); i++) {
setState(sizeBar, i, 0);
}
for (int i = 0; i < 3; i++) {
// Child width and height -> -1px
SampleChild child = (SampleChild) currentLayout.getComponent(i);
for (int j = 0; j < child.getComponentCount(); j++) {
if (j == 4) {
setState(child, j, 1);
} else {
setState(child, j, 0);
}
}
}
}
private void setChildState(int childIndex, int selectIndex,
int valueIndex) {
Component child = currentLayout.getComponent(childIndex);
setState(child, selectIndex, valueIndex);
}
private static void setState(Component container, int selectIndex,
int value) {
NativeSelect select = (NativeSelect) ((AbstractOrderedLayout) container)
.getComponent(selectIndex);
select.setValue(new ArrayList<Object>(select.getItemIds()).get(value));
}
private static NativeSelect createSimpleSelector(String caption,
ValueChangeListener listener, String... values) {
return createSimpleSelector(caption, listener, Arrays.asList(values),
values[0]);
}
private static NativeSelect createSimpleSelector(String caption,
ValueChangeListener listener, List<String> values,
String defaultValue) {
NativeSelect selector = new NativeSelect(caption, values);
selector.setNullSelectionAllowed(false);
selector.setImmediate(true);
selector.addListener(listener);
selector.setValue(defaultValue);
return selector;
}
@Override
protected Integer getTicketNumber() {
return null;
}
@Override
protected String getTestDescription() {
return "Tester application for exploring how Horizontal/VerticalLayout reacts to various settings ";
}
}