/**
* Retrieves the text of an option element. If the text was set by {@link #setOptionText} and was
* wrapped with Unicode bidi formatting characters, also removes those additional formatting
* characters.
*
* @param option an option element
* @return the element's text
*/
protected String getOptionText(OptionElement option) {
String text = option.getText();
if (option.hasAttribute(BIDI_ATTR_NAME) && text.length() > 1) {
text = text.substring(1, text.length() - 1);
}
return text;
}
private void insertItem(String item, Direction dir, String value, String optionStyle) {
SelectElement select = getSelectElement();
OptionElement option = createOption(item, dir, value);
if (optionStyle != null) {
option.setClassName(optionStyle);
}
select.appendChild(option);
}
private OptionElement createOption(String item, Direction dir, String value, String className) {
OptionElement option = Document.get().createOptionElement();
setOptionText(option, item, dir);
option.setValue(value);
if (className != null) {
option.addClassName(className);
}
return option;
}
/**
* Creates an <code><option></code> element and inserts it as a child of the specified
* <code><select></code> element. If the index is less than zero, or greater than or equal
* to the length of the list, then the option element will be appended to the end of the list.
*
* @param selectElem the <code><select></code> element
* @param item the text of the new item; cannot be <code>null</code>
* @param value the <code>value</code> attribute for the new <code><option></code>; cannot
* be <code>null</code>
* @param index the index at which to insert the child
*/
public static void insertListItem(Element selectElem, String item, String value, int index) {
assert !PotentialElement.isPotential(selectElem) : "Cannot insert into a PotentialElement";
SelectElement select = selectElem.<SelectElement>cast();
OptionElement option = Document.get().createOptionElement();
option.setText(item);
option.setValue(value);
if ((index == -1) || (index == select.getLength())) {
select.add(option, null);
} else {
OptionElement before = select.getOptions().getItem(index);
select.add(option, before);
}
}
/**
* Sets the text of an option element. If the direction of the text is opposite to the page's
* direction, also wraps it with Unicode bidi formatting characters to prevent garbling, and
* indicates that this was done by setting the option's <code>BIDI_ATTR_NAME</code> custom
* attribute.
*
* @param option an option element
* @param text text to be set to the element
* @param dir the text's direction. If {@code null} and direction estimation is turned off,
* direction is ignored.
*/
protected void setOptionText(OptionElement option, String text, Direction dir) {
if (dir == null && estimator != null) {
dir = estimator.estimateDirection(text);
}
if (dir == null) {
option.setText(text);
option.removeAttribute(BIDI_ATTR_NAME);
} else {
String formattedText =
BidiFormatter.getInstanceForCurrentLocale()
.unicodeWrapWithKnownDir(dir, text, false /* isHtml */, false /* dirReset */);
option.setText(formattedText);
if (formattedText.length() > text.length()) {
option.setAttribute(BIDI_ATTR_NAME, "");
} else {
option.removeAttribute(BIDI_ATTR_NAME);
}
}
}
private void resultsReset(Event e) {
OptionElement firstoption = selectElement.getOptions().getItem(0);
if (firstoption != null) {
firstoption.setSelected(true);
}
selectedItem.find("span").text(defaultText);
if (!isMultiple) {
selectedItem.addClass(css.chznDefault());
}
showSearchFieldDefault();
resultsResetCleanup();
fireEvent(new ChosenChangeEvent(null, this));
if (activeField) {
resultsHide();
}
}
private void resultDeselect(int index) {
OptionItem item = (OptionItem) selectItems.get(index);
item.setSelected(false);
// select option in original element
OptionElement option = selectElement.getOptions().getItem(item.getOptionsIndex());
option.setSelected(false);
$("#" + containerId + "_o_" + index)
.removeClass(css.resultSelected())
.addClass(css.activeResult())
.show();
resultClearHighlight();
winnowResults();
fireEvent(new ChosenChangeEvent(option.getValue(), false, this));
searchFieldScale();
}
