@Override
public void render(Context context, SafeHtml value, SafeHtmlBuilder sb) {
ObjectProperty property = (ObjectProperty) context.getKey();
if (navigable && property != null && !property.isBaseType()) {
SafeHtml startAnchor = null;
SafeHtml endAnchor = null;
startAnchor =
new SafeHtml() {
@Override
public String asString() {
return "<div style=\"cursor: pointer;\">";
}
};
endAnchor =
new SafeHtml() {
@Override
public String asString() {
return "</div>";
}
};
sb.append(startAnchor);
sb.append(value);
sb.append(endAnchor);
} else {
super.render(context, value, sb);
}
}
@Override
public void onBrowserEvent(
Context context,
Element parent,
String value,
NativeEvent event,
ValueUpdater<String> valueUpdater) {
super.onBrowserEvent(context, parent, value, event, valueUpdater);
String type = event.getType();
if ("change".equals(type)) {
HasOptions key = (HasOptions) context.getKey();
SelectElement select = parent.getFirstChild().cast();
String newValue = null;
if (key.hasOptions()) {
List<String> options = key.getOptions();
int optionsPreambleSize =
key.getOptionsPreamble() == null ? 0 : key.getOptionsPreamble().size();
int selectedOptionIndex = select.getSelectedIndex() - optionsPreambleSize;
if (selectedOptionIndex >= 0) newValue = options.get(selectedOptionIndex);
} else newValue = key.getNoOptionsString();
setViewData(key, newValue);
finishEditing(parent, newValue, key, valueUpdater);
if (valueUpdater != null) {
valueUpdater.update(newValue);
}
}
}
@Override
public void onBrowserEvent(
Context context,
Element parent,
String value,
NativeEvent event,
ValueUpdater<String> valueUpdater) {
Object key = context.getKey();
ViewData viewData = getViewData(key);
if (viewData != null && viewData.isEditing()) {
// Handle the edit event.
editEvent(context, parent, value, viewData, event, valueUpdater);
} else {
String type = event.getType();
int keyCode = event.getKeyCode();
boolean enterPressed = KEYUP.equals(type) && keyCode == KeyCodes.KEY_ENTER;
if (CLICK.equals(type) || enterPressed) {
// Go into edit mode.
if (viewData == null) {
viewData = new ViewData(value);
setViewData(key, viewData);
} else {
viewData.setEditing(true);
}
edit(context, parent, value);
}
}
}
@Override
public void onBrowserEvent(
Context context,
Element parent,
String value,
NativeEvent event,
ValueUpdater<String> stringValueUpdater) {
ObjectProperty property = (ObjectProperty) context.getKey();
if (DOM.eventGetType((Event) event) == Event.ONCLICK && !property.isBaseType()) {
editor.onTypeCellSelection(property);
} else {
super.onBrowserEvent(context, parent, value, event, stringValueUpdater);
}
}
private void editEvent(
Context context,
Element parent,
String value,
ViewData viewData,
NativeEvent event,
ValueUpdater<String> valueUpdater) {
String type = event.getType();
boolean keyUp = KEYUP.equals(type);
boolean keyDown = KEYDOWN.equals(type);
if (keyUp || keyDown) {
int keyCode = event.getKeyCode();
if (keyUp
&& keyCode == KeyCodes.KEY_ENTER
&& (event.getCtrlKey() || event.getAltKey() || event.getShiftKey())) {
// Commit the change.
commit(context, parent, viewData, valueUpdater);
} else if (keyUp && keyCode == KeyCodes.KEY_ESCAPE) {
// Cancel edit mode.
String originalText = viewData.getOriginal();
if (viewData.isEditingAgain()) {
viewData.setText(originalText);
viewData.setEditing(false);
} else {
setViewData(context.getKey(), null);
}
cancel(context, parent, value);
} else {
// Update the text in the view data on each key.
updateViewData(parent, viewData, true);
}
} else if (BLUR.equals(type)) {
// Commit the change. Ensure that we are blurring the input element and
// not the parent element itself.
EventTarget eventTarget = event.getEventTarget();
if (Element.is(eventTarget)) {
Element target = Element.as(eventTarget);
if ("input".equals(target.getTagName().toLowerCase())) {
commit(context, parent, viewData, valueUpdater);
}
}
}
}
@Override
public void onBrowserEvent(
final Context context,
final Element parent,
final String value,
final NativeEvent event,
final ValueUpdater<String> valueUpdater) {
super.onBrowserEvent(context, parent, value, event, valueUpdater);
final String type = event.getType();
if ("change".equals(type)) {
final Object key = context.getKey();
final SelectElement select = parent.getFirstChild().cast();
final String newValue = options.get(select.getSelectedIndex());
setViewData(key, newValue);
finishEditing(parent, newValue, key, valueUpdater);
if (valueUpdater != null) {
valueUpdater.update(newValue);
}
}
}
@Override
public void render(Context context, String value, SafeHtmlBuilder sb) {
// Get the view data.
Object key = context.getKey();
String viewData = getViewData(key);
if (viewData != null && viewData.equals(value)) {
clearViewData(key);
viewData = null;
}
int selectedIndex = getSelectedIndex(viewData == null ? value : viewData);
sb.appendHtmlConstant("<select tabindex=\"-1\">");
int index = 0;
for (String option : options) {
if (index++ == selectedIndex) {
sb.append(template.selected(option));
} else {
sb.append(template.deselected(option));
}
}
sb.appendHtmlConstant("</select>");
}
@Override
public void render(Context context, String value, SafeHtmlBuilder sb) {
// Get the view data.
Object key = context.getKey();
ViewData viewData = getViewData(key);
if (viewData != null
&& !viewData.isEditing()
&& value != null
&& value.equals(viewData.getText())) {
clearViewData(key);
viewData = null;
}
String toRender = value;
if (viewData != null) {
String text = viewData.getText();
if (viewData.isEditing()) {
/*
* Do not use the renderer in edit mode because the value of a text
* input element is always treated as text. SafeHtml isn't valid in the
* context of the value attribute.
*/
sb.append(template.input(text));
return;
} else {
// The user pressed enter, but view data still exists.
toRender = text;
}
}
if (toRender != null && toRender.trim().length() > 0) {
sb.append(renderer.render(toRender));
} else {
/*
* Render a blank space to force the rendered element to have a height.
* Otherwise it is not clickable.
*/
sb.appendHtmlConstant("\u00A0");
}
}
@Override
public void render(Context context, String value, SafeHtmlBuilder sb) {
// Get the view data.
HasOptions key = (HasOptions) context.getKey();
String viewData = getViewData(key);
if (viewData != null && viewData.equals(value)) {
clearViewData(key);
viewData = null;
}
if (key.hasOptions()) {
if (cellWidth != null)
sb.appendHtmlConstant("<select tabindex=\"-1\" style=\"width: " + cellWidth + "\">");
else sb.appendHtmlConstant("<select tabindex=\"-1\">");
int selectedOptionIndex = getSelectedOptionIndex(key, viewData == null ? value : viewData);
int index = 0;
// append options preamble
List<String> optionsPreamble = key.getOptionsPreamble();
if (optionsPreamble != null) {
for (String option : optionsPreamble) sb.append(template.deselected(option));
}
// append the rest of the options
for (String option : key.getOptions()) {
if (index++ == selectedOptionIndex) {
sb.append(template.selected(option));
} else {
sb.append(template.deselected(option));
}
}
sb.appendHtmlConstant("</select>");
} else sb.appendHtmlConstant("<div>" + key.getNoOptionsString() + "</div>");
}
@Override
public boolean isEditing(Context context, Element parent, String value) {
ViewData viewData = getViewData(context.getKey());
return viewData == null ? false : viewData.isEditing();
}