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A headless browser intended for use in testing web-based applications.
/*
* Copyright (c) 2002-2022 Gargoyle Software Inc.
*
* 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
* https://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 com.gargoylesoftware.htmlunit.html;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.FORM_SUBMISSION_FORM_ATTRIBUTE;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.HTMLELEMENT_DETACH_ACTIVE_TRIGGERS_NO_KEYUP_EVENT;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.HTMLELEMENT_REMOVE_ACTIVE_TRIGGERS_BLUR_EVENT;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.KEYBOARD_EVENT_SPECIAL_KEYPRESS;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.DOMException;
import org.w3c.dom.Element;
import org.w3c.dom.EntityReference;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;
import org.w3c.dom.Text;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.ElementNotFoundException;
import com.gargoylesoftware.htmlunit.Page;
import com.gargoylesoftware.htmlunit.ScriptResult;
import com.gargoylesoftware.htmlunit.SgmlPage;
import com.gargoylesoftware.htmlunit.WebAssert;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.impl.SelectableTextInput;
import com.gargoylesoftware.htmlunit.javascript.host.dom.Document;
import com.gargoylesoftware.htmlunit.javascript.host.dom.MutationObserver;
import com.gargoylesoftware.htmlunit.javascript.host.event.Event;
import com.gargoylesoftware.htmlunit.javascript.host.event.EventTarget;
import com.gargoylesoftware.htmlunit.javascript.host.event.KeyboardEvent;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLDocument;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLElement;
/**
* An abstract wrapper for HTML elements.
*
* @author Mike Bowler
* @author Mike J. Bresnahan
* @author David K. Taylor
* @author Christian Sell
* @author David D. Kilzer
* @author Mike Gallaher
* @author Denis N. Antonioli
* @author Marc Guillemot
* @author Ahmed Ashour
* @author Daniel Gredler
* @author Dmitri Zoubkov
* @author Sudhan Moghe
* @author Ronald Brill
* @author Frank Danek
* @author Ronny Shapiro
*/
public abstract class HtmlElement extends DomElement {
/**
* Enum for the different display styles.
*/
public enum DisplayStyle {
/** Empty string. */
EMPTY(""),
/** none. */
NONE("none"),
/** block. */
BLOCK("block"),
/** contents. */
CONTENTS("contents"),
/** inline. */
INLINE("inline"),
/** inline-block. */
INLINE_BLOCK("inline-block"),
/** list-item. */
LIST_ITEM("list-item"),
/** table. */
TABLE("table"),
/** table-cell. */
TABLE_CELL("table-cell"),
/** table-column. */
TABLE_COLUMN("table-column"),
/** table-column-group. */
TABLE_COLUMN_GROUP("table-column-group"),
/** table-row. */
TABLE_ROW("table-row"),
/** table-row-group. */
TABLE_ROW_GROUP("table-row-group"),
/** table-header-group. */
TABLE_HEADER_GROUP("table-header-group"),
/** table-footer-group. */
TABLE_FOOTER_GROUP("table-footer-group"),
/** table-caption. */
TABLE_CAPTION("table-caption"),
/** ruby. */
RUBY("ruby"),
/** ruby-text. */
RUBY_TEXT("ruby-text");
private final String value_;
DisplayStyle(final String value) {
value_ = value;
}
/**
* The string used from js.
* @return the value as string
*/
public String value() {
return value_;
}
}
/**
* Constant indicating that a tab index value is out of bounds (less than 0 or greater
* than 32767).
*
* @see #getTabIndex()
*/
public static final Short TAB_INDEX_OUT_OF_BOUNDS = new Short(Short.MIN_VALUE);
/** Constant 'required'. */
protected static final String ATTRIBUTE_REQUIRED = "required";
/** Constant 'checked'. */
protected static final String ATTRIBUTE_CHECKED = "checked";
/** The listeners which are to be notified of attribute changes. */
private final Collection attributeListeners_;
/** The owning form for lost form children. */
private HtmlForm owningForm_;
private boolean shiftPressed_;
private boolean ctrlPressed_;
private boolean altPressed_;
/**
* Creates an instance.
*
* @param qualifiedName the qualified name of the element type to instantiate
* @param page the page that contains this element
* @param attributes a map ready initialized with the attributes for this element, or
* {@code null}. The map will be stored as is, not copied.
*/
protected HtmlElement(final String qualifiedName, final SgmlPage page,
final Map attributes) {
this(Html.XHTML_NAMESPACE, qualifiedName, page, attributes);
}
/**
* Creates an instance of a DOM element that can have a namespace.
*
* @param namespaceURI the URI that identifies an XML namespace
* @param qualifiedName the qualified name of the element type to instantiate
* @param page the page that contains this element
* @param attributes a map ready initialized with the attributes for this element, or
* {@code null}. The map will be stored as is, not copied.
*/
protected HtmlElement(final String namespaceURI, final String qualifiedName, final SgmlPage page,
final Map attributes) {
super(namespaceURI, qualifiedName, page, attributes);
attributeListeners_ = new LinkedHashSet<>();
}
/**
* {@inheritDoc}
*/
@Override
protected void setAttributeNS(final String namespaceURI, final String qualifiedName,
final String attributeValue, final boolean notifyAttributeChangeListeners,
final boolean notifyMutationObservers) {
// TODO: Clean up; this is a hack for HtmlElement living within an XmlPage.
if (null == getHtmlPageOrNull()) {
super.setAttributeNS(namespaceURI, qualifiedName, attributeValue, notifyAttributeChangeListeners,
notifyMutationObservers);
return;
}
final String oldAttributeValue = getAttribute(qualifiedName);
final HtmlPage htmlPage = (HtmlPage) getPage();
final boolean mappedElement = isAttachedToPage()
&& HtmlPage.isMappedElement(htmlPage, qualifiedName);
if (mappedElement) {
// cast is save here because isMappedElement checks for HtmlPage
htmlPage.removeMappedElement(this);
}
final HtmlAttributeChangeEvent event;
if (ATTRIBUTE_NOT_DEFINED == oldAttributeValue) {
event = new HtmlAttributeChangeEvent(this, qualifiedName, attributeValue);
}
else {
event = new HtmlAttributeChangeEvent(this, qualifiedName, oldAttributeValue);
}
super.setAttributeNS(namespaceURI, qualifiedName, attributeValue, notifyAttributeChangeListeners,
notifyMutationObservers);
if (notifyAttributeChangeListeners) {
notifyAttributeChangeListeners(event, this, oldAttributeValue, notifyMutationObservers);
}
fireAttributeChangeImpl(event, htmlPage, mappedElement, oldAttributeValue);
}
/**
* Recursively notifies all {@link HtmlAttributeChangeListener}s.
* @param event the event
* @param element the element
* @param oldAttributeValue the old attribute value
* @param notifyMutationObservers whether to notify {@link MutationObserver}s or not
*/
protected static void notifyAttributeChangeListeners(final HtmlAttributeChangeEvent event,
final HtmlElement element, final String oldAttributeValue, final boolean notifyMutationObservers) {
final Collection listeners = element.attributeListeners_;
if (ATTRIBUTE_NOT_DEFINED == oldAttributeValue) {
synchronized (listeners) {
for (final HtmlAttributeChangeListener listener : listeners) {
if (notifyMutationObservers || !(listener instanceof MutationObserver)) {
listener.attributeAdded(event);
}
}
}
}
else {
synchronized (listeners) {
for (final HtmlAttributeChangeListener listener : listeners) {
if (notifyMutationObservers || !(listener instanceof MutationObserver)) {
listener.attributeReplaced(event);
}
}
}
}
final DomNode parentNode = element.getParentNode();
if (parentNode instanceof HtmlElement) {
notifyAttributeChangeListeners(event, (HtmlElement) parentNode, oldAttributeValue, notifyMutationObservers);
}
}
private void fireAttributeChangeImpl(final HtmlAttributeChangeEvent event,
final HtmlPage htmlPage, final boolean mappedElement, final String oldAttributeValue) {
if (mappedElement) {
htmlPage.addMappedElement(this);
}
if (ATTRIBUTE_NOT_DEFINED == oldAttributeValue) {
fireHtmlAttributeAdded(event);
htmlPage.fireHtmlAttributeAdded(event);
}
else {
fireHtmlAttributeReplaced(event);
htmlPage.fireHtmlAttributeReplaced(event);
}
}
/**
* Sets the specified attribute. This method may be overridden by subclasses
* which are interested in specific attribute value changes, but such methods must
* invoke super.setAttributeNode(), and should consider the value of the
* cloning parameter when deciding whether or not to execute custom logic.
*
* @param attribute the attribute to set
* @return {@inheritDoc}
*/
@Override
public Attr setAttributeNode(final Attr attribute) {
final String qualifiedName = attribute.getName();
final String oldAttributeValue = getAttribute(qualifiedName);
final HtmlPage htmlPage = (HtmlPage) getPage();
final boolean mappedElement = isAttachedToPage()
&& HtmlPage.isMappedElement(htmlPage, qualifiedName);
if (mappedElement) {
// cast is save here because isMappedElement checks for HtmlPage
htmlPage.removeMappedElement(this);
}
final HtmlAttributeChangeEvent event;
if (ATTRIBUTE_NOT_DEFINED == oldAttributeValue) {
event = new HtmlAttributeChangeEvent(this, qualifiedName, attribute.getValue());
}
else {
event = new HtmlAttributeChangeEvent(this, qualifiedName, oldAttributeValue);
}
notifyAttributeChangeListeners(event, this, oldAttributeValue, true);
final Attr result = super.setAttributeNode(attribute);
fireAttributeChangeImpl(event, htmlPage, mappedElement, oldAttributeValue);
return result;
}
/**
* Removes an attribute specified by name from this element.
* @param attributeName the attribute attributeName
*/
@Override
public void removeAttribute(final String attributeName) {
final String value = getAttribute(attributeName);
if (ATTRIBUTE_NOT_DEFINED == value) {
return;
}
final HtmlPage htmlPage = getHtmlPageOrNull();
if (htmlPage != null) {
htmlPage.removeMappedElement(this);
}
super.removeAttribute(attributeName);
if (htmlPage != null) {
htmlPage.addMappedElement(this);
final HtmlAttributeChangeEvent event = new HtmlAttributeChangeEvent(this, attributeName, value);
fireHtmlAttributeRemoved(event);
htmlPage.fireHtmlAttributeRemoved(event);
}
}
/**
* Support for reporting HTML attribute changes. This method can be called when an attribute
* has been added and it will send the appropriate {@link HtmlAttributeChangeEvent} to any
* registered {@link HtmlAttributeChangeListener}s.
*
* Note that this method recursively calls this element's parent's
* {@link #fireHtmlAttributeAdded(HtmlAttributeChangeEvent)} method.
*
* @param event the event
* @see #addHtmlAttributeChangeListener(HtmlAttributeChangeListener)
*/
protected void fireHtmlAttributeAdded(final HtmlAttributeChangeEvent event) {
final DomNode parentNode = getParentNode();
if (parentNode instanceof HtmlElement) {
((HtmlElement) parentNode).fireHtmlAttributeAdded(event);
}
}
/**
* Support for reporting HTML attribute changes. This method can be called when an attribute
* has been replaced and it will send the appropriate {@link HtmlAttributeChangeEvent} to any
* registered {@link HtmlAttributeChangeListener}s.
*
* Note that this method recursively calls this element's parent's
* {@link #fireHtmlAttributeReplaced(HtmlAttributeChangeEvent)} method.
*
* @param event the event
* @see #addHtmlAttributeChangeListener(HtmlAttributeChangeListener)
*/
protected void fireHtmlAttributeReplaced(final HtmlAttributeChangeEvent event) {
final DomNode parentNode = getParentNode();
if (parentNode instanceof HtmlElement) {
((HtmlElement) parentNode).fireHtmlAttributeReplaced(event);
}
}
/**
* Support for reporting HTML attribute changes. This method can be called when an attribute
* has been removed and it will send the appropriate {@link HtmlAttributeChangeEvent} to any
* registered {@link HtmlAttributeChangeListener}s.
*
* Note that this method recursively calls this element's parent's
* {@link #fireHtmlAttributeRemoved(HtmlAttributeChangeEvent)} method.
*
* @param event the event
* @see #addHtmlAttributeChangeListener(HtmlAttributeChangeListener)
*/
protected void fireHtmlAttributeRemoved(final HtmlAttributeChangeEvent event) {
synchronized (attributeListeners_) {
for (final HtmlAttributeChangeListener listener : attributeListeners_) {
listener.attributeRemoved(event);
}
}
final DomNode parentNode = getParentNode();
if (parentNode instanceof HtmlElement) {
((HtmlElement) parentNode).fireHtmlAttributeRemoved(event);
}
}
/**
* @return the same value as returned by {@link #getTagName()}
*/
@Override
public String getNodeName() {
final String prefix = getPrefix();
if (prefix != null) {
// create string builder only if needed (performance)
final StringBuilder name = new StringBuilder(prefix.toLowerCase(Locale.ROOT))
.append(':')
.append(getLocalName().toLowerCase(Locale.ROOT));
return name.toString();
}
return getLocalName().toLowerCase(Locale.ROOT);
}
/**
* Returns this element's tab index, if it has one. If the tab index is outside of the
* valid range (less than 0 or greater than 32767), this method
* returns {@link #TAB_INDEX_OUT_OF_BOUNDS}. If this element does not have
* a tab index, or its tab index is otherwise invalid, this method returns {@code null}.
*
* @return this element's tab index
*/
public Short getTabIndex() {
final String index = getAttributeDirect("tabindex");
if (index == null || index.isEmpty()) {
return null;
}
try {
final long l = Long.parseLong(index);
if (l >= 0 && l <= Short.MAX_VALUE) {
return Short.valueOf((short) l);
}
return TAB_INDEX_OUT_OF_BOUNDS;
}
catch (final NumberFormatException e) {
return null;
}
}
/**
* Returns the first element with the specified tag name that is an ancestor to this element, or
* {@code null} if no such element is found.
* @param tagName the name of the tag searched (case insensitive)
* @return the first element with the specified tag name that is an ancestor to this element
*/
public HtmlElement getEnclosingElement(final String tagName) {
final String tagNameLC = tagName.toLowerCase(Locale.ROOT);
for (DomNode currentNode = getParentNode(); currentNode != null; currentNode = currentNode.getParentNode()) {
if (currentNode instanceof HtmlElement && currentNode.getNodeName().equals(tagNameLC)) {
return (HtmlElement) currentNode;
}
}
return null;
}
/**
* Returns the form which contains this element, or {@code null} if this element is not inside
* of a form.
* @return the form which contains this element
*/
public HtmlForm getEnclosingForm() {
final BrowserVersion browserVersion = getPage().getWebClient().getBrowserVersion();
if (browserVersion.hasFeature(FORM_SUBMISSION_FORM_ATTRIBUTE)) {
final String formId = getAttribute("form");
if (ATTRIBUTE_NOT_DEFINED != formId) {
final Element formById = getPage().getElementById(formId);
if (formById instanceof HtmlForm) {
return (HtmlForm) formById;
}
return null;
}
}
if (owningForm_ != null) {
return owningForm_;
}
return (HtmlForm) getEnclosingElement("form");
}
/**
* Returns the form which contains this element. If this element is not inside a form, this method
* throws an {@link IllegalStateException}.
* @return the form which contains this element
*/
public HtmlForm getEnclosingFormOrDie() {
final HtmlForm form = getEnclosingForm();
if (form == null) {
throw new IllegalStateException("Element is not contained within a form: " + this);
}
return form;
}
/**
* Simulates typing the specified text while this element has focus.
* Note that for some elements, typing '\n' submits the enclosed form.
* @param text the text you with to simulate typing
* @exception IOException If an IO error occurs
*/
public void type(final String text) throws IOException {
for (final char ch : text.toCharArray()) {
type(ch);
}
}
/**
* Simulates typing the specified character while this element has focus, returning the page contained
* by this element's window after typing. Note that it may or may not be the same as the original page,
* depending on the JavaScript event handlers, etc. Note also that for some elements, typing '\n'
* submits the enclosed form.
*
* @param c the character you wish to simulate typing
* @return the page that occupies this window after typing
* @exception IOException if an IO error occurs
*/
public Page type(final char c) throws IOException {
return type(c, true);
}
/**
* Simulates typing the specified character while this element has focus, returning the page contained
* by this element's window after typing. Note that it may or may not be the same as the original page,
* depending on the JavaScript event handlers, etc. Note also that for some elements, typing '\n'
* submits the enclosed form.
*
* @param c the character you wish to simulate typing
* @param lastType is this the last character to type
* @return the page contained in the current window as returned by {@link WebClient#getCurrentWindow()}
* @exception IOException if an IO error occurs
*/
private Page type(final char c, final boolean lastType)
throws IOException {
if (isDisabledElementAndDisabled()) {
return getPage();
}
// make enclosing window the current one
getPage().getWebClient().setCurrentWindow(getPage().getEnclosingWindow());
final HtmlPage page = (HtmlPage) getPage();
if (page.getFocusedElement() != this) {
focus();
}
final boolean isShiftNeeded = KeyboardEvent.isShiftNeeded(c, shiftPressed_);
final Event shiftDown;
final ScriptResult shiftDownResult;
if (isShiftNeeded) {
shiftDown = new KeyboardEvent(this, Event.TYPE_KEY_DOWN, KeyboardEvent.DOM_VK_SHIFT,
true, ctrlPressed_, altPressed_);
shiftDownResult = fireEvent(shiftDown);
}
else {
shiftDown = null;
shiftDownResult = null;
}
final Event keyDown = new KeyboardEvent(this, Event.TYPE_KEY_DOWN, c,
shiftPressed_ || isShiftNeeded, ctrlPressed_, altPressed_);
final ScriptResult keyDownResult = fireEvent(keyDown);
if (!keyDown.isAborted(keyDownResult)) {
final Event keyPress = new KeyboardEvent(this, Event.TYPE_KEY_PRESS, c,
shiftPressed_ || isShiftNeeded, ctrlPressed_, altPressed_);
final ScriptResult keyPressResult = fireEvent(keyPress);
if ((shiftDown == null || !shiftDown.isAborted(shiftDownResult))
&& !keyPress.isAborted(keyPressResult)) {
doType(c, lastType);
}
}
final WebClient webClient = page.getWebClient();
if (this instanceof HtmlTextInput
|| this instanceof HtmlTextArea
|| this instanceof HtmlTelInput
|| this instanceof HtmlNumberInput
|| this instanceof HtmlSearchInput
|| this instanceof HtmlPasswordInput) {
fireEvent(new KeyboardEvent(this, Event.TYPE_INPUT, c,
shiftPressed_ || isShiftNeeded, ctrlPressed_, altPressed_));
}
HtmlElement eventSource = this;
if (!isAttachedToPage()) {
final BrowserVersion browserVersion = page.getWebClient().getBrowserVersion();
if (browserVersion.hasFeature(HTMLELEMENT_DETACH_ACTIVE_TRIGGERS_NO_KEYUP_EVENT)) {
eventSource = null;
}
else {
eventSource = page.getBody();
}
}
if (eventSource != null) {
final Event keyUp = new KeyboardEvent(this, Event.TYPE_KEY_UP, c,
shiftPressed_ || isShiftNeeded, ctrlPressed_, altPressed_);
eventSource.fireEvent(keyUp);
if (isShiftNeeded) {
final Event shiftUp = new KeyboardEvent(this, Event.TYPE_KEY_UP,
KeyboardEvent.DOM_VK_SHIFT,
false, ctrlPressed_, altPressed_);
eventSource.fireEvent(shiftUp);
}
}
final HtmlForm form = getEnclosingForm();
if (form != null && c == '\n' && isSubmittableByEnter()) {
final HtmlSubmitInput submit = form.getFirstByXPath(".//input[@type='submit']");
if (submit != null) {
return submit.click();
}
form.submit((SubmittableElement) this);
webClient.getJavaScriptEngine().processPostponedActions();
}
return webClient.getCurrentWindow().getEnclosedPage();
}
/**
* Simulates typing the specified key code while this element has focus, returning the page contained
* by this element's window after typing. Note that it may or may not be the same as the original page,
* depending on the JavaScript event handlers, etc. Note also that for some elements, typing XXXXXXXXXXX
* submits the enclosed form.
*
* An example of predefined values is {@link KeyboardEvent#DOM_VK_PAGE_DOWN}.
*
* @param keyCode the key code to simulate typing
* @return the page that occupies this window after typing
*/
public Page type(final int keyCode) {
return type(keyCode, true, true, true, true);
}
/**
* Simulates typing the specified {@link Keyboard} while this element has focus, returning the page contained
* by this element's window after typing. Note that it may or may not be the same as the original page,
* depending on the JavaScript event handlers, etc. Note also that for some elements, typing XXXXXXXXXXX
* submits the enclosed form.
*
* @param keyboard the keyboard
* @return the page that occupies this window after typing
* @exception IOException if an IO error occurs
*/
public Page type(final Keyboard keyboard) throws IOException {
Page page = null;
final List keys = keyboard.getKeys();
if (keyboard.isStartAtEnd()) {
if (this instanceof SelectableTextInput) {
final SelectableTextInput textInput = (SelectableTextInput) this;
textInput.setSelectionStart(textInput.getText().length());
}
else {
final DomText domText = getDoTypeNode();
if (domText != null) {
domText.moveSelectionToEnd();
}
}
}
for (int i = 0; i < keys.size(); i++) {
final Object[] entry = keys.get(i);
if (entry.length == 1) {
type((char) entry[0], i == keys.size() - 1);
}
else {
final int key = (int) entry[0];
final boolean pressed = (boolean) entry[1];
switch (key) {
case KeyboardEvent.DOM_VK_SHIFT:
shiftPressed_ = pressed;
break;
case KeyboardEvent.DOM_VK_CONTROL:
ctrlPressed_ = pressed;
break;
case KeyboardEvent.DOM_VK_ALT:
altPressed_ = pressed;
break;
default:
}
if (pressed) {
boolean keyPress = true;
boolean keyUp = true;
switch (key) {
case KeyboardEvent.DOM_VK_SHIFT:
case KeyboardEvent.DOM_VK_CONTROL:
case KeyboardEvent.DOM_VK_ALT:
keyPress = false;
keyUp = false;
break;
default:
}
page = type(key, true, keyPress, keyUp, i == keys.size() - 1);
}
else {
page = type(key, false, false, true, i == keys.size() - 1);
}
}
}
return page;
}
private Page type(final int keyCode,
final boolean fireKeyDown, final boolean fireKeyPress, final boolean fireKeyUp,
final boolean lastType) {
if (isDisabledElementAndDisabled()) {
return getPage();
}
final HtmlPage page = (HtmlPage) getPage();
if (page.getFocusedElement() != this) {
focus();
}
final Event keyDown;
final ScriptResult keyDownResult;
if (fireKeyDown) {
keyDown = new KeyboardEvent(this, Event.TYPE_KEY_DOWN, keyCode, shiftPressed_, ctrlPressed_, altPressed_);
keyDownResult = fireEvent(keyDown);
}
else {
keyDown = null;
keyDownResult = null;
}
final BrowserVersion browserVersion = page.getWebClient().getBrowserVersion();
final Event keyPress;
final ScriptResult keyPressResult;
if (fireKeyPress && browserVersion.hasFeature(KEYBOARD_EVENT_SPECIAL_KEYPRESS)) {
keyPress = new KeyboardEvent(this, Event.TYPE_KEY_PRESS, keyCode,
shiftPressed_, ctrlPressed_, altPressed_);
keyPressResult = fireEvent(keyPress);
}
else {
keyPress = null;
keyPressResult = null;
}
if (keyDown != null && !keyDown.isAborted(keyDownResult)
&& (keyPress == null || !keyPress.isAborted(keyPressResult))) {
doType(keyCode, lastType);
}
if (this instanceof HtmlTextInput
|| this instanceof HtmlTextArea
|| this instanceof HtmlTelInput
|| this instanceof HtmlNumberInput
|| this instanceof HtmlSearchInput
|| this instanceof HtmlPasswordInput) {
final Event input = new KeyboardEvent(this, Event.TYPE_INPUT, keyCode,
shiftPressed_, ctrlPressed_, altPressed_);
fireEvent(input);
}
if (fireKeyUp) {
final Event keyUp = new KeyboardEvent(this, Event.TYPE_KEY_UP, keyCode,
shiftPressed_, ctrlPressed_, altPressed_);
fireEvent(keyUp);
}
// final HtmlForm form = getEnclosingForm();
// if (form != null && keyCode == '\n' && isSubmittableByEnter()) {
// if (!getPage().getWebClient().getBrowserVersion()
// .hasFeature(BUTTON_EMPTY_TYPE_BUTTON)) {
// final HtmlSubmitInput submit = form.getFirstByXPath(".//input[@type='submit']");
// if (submit != null) {
// return submit.click();
// }
// }
// form.submit((SubmittableElement) this);
// page.getWebClient().getJavaScriptEngine().processPostponedActions();
// }
return page.getWebClient().getCurrentWindow().getEnclosedPage();
}
/**
* Performs the effective type action, called after the keyPress event and before the keyUp event.
* @param c the character you with to simulate typing
* @param lastType is this the last character to type
*/
protected void doType(final char c, final boolean lastType) {
final DomText domText = getDoTypeNode();
if (domText != null) {
domText.doType(c, this, lastType);
}
}
/**
* Performs the effective type action, called after the keyPress event and before the keyUp event.
*
* An example of predefined values is {@link KeyboardEvent#DOM_VK_PAGE_DOWN}.
*
* @param keyCode the key code wish to simulate typing
* @param lastType is this the last to type
*/
protected void doType(final int keyCode, final boolean lastType) {
final DomText domText = getDoTypeNode();
if (domText != null) {
domText.doType(keyCode, this, lastType);
}
}
/**
* Returns the node to type into.
* @return the node
*/
private DomText getDoTypeNode() {
final HTMLElement scriptElement = getScriptableObject();
if (scriptElement.isIsContentEditable()
|| "on".equals(((Document) scriptElement.getOwnerDocument()).getDesignMode())) {
DomNodeList children = getChildNodes();
while (!children.isEmpty()) {
final DomNode lastChild = children.get(children.size() - 1);
if (lastChild instanceof DomText) {
return (DomText) lastChild;
}
children = lastChild.getChildNodes();
}
final DomText domText = new DomText(getPage(), "");
appendChild(domText);
return domText;
}
return null;
}
/**
* Called from {@link DoTypeProcessor}.
* @param newValue the new value
* @param notifyAttributeChangeListeners to notify the associated {@link HtmlAttributeChangeListener}s
*/
protected void typeDone(final String newValue, final boolean notifyAttributeChangeListeners) {
// nothing
}
/**
* Indicates if the provided character can by "typed" in the element.
* @param c the character
* @return {@code true} if it is accepted
*/
protected boolean acceptChar(final char c) {
// This range is this is private use area
// see http://www.unicode.org/charts/PDF/UE000.pdf
return (c < '\uE000' || c > '\uF8FF') && (c == ' ' || !Character.isWhitespace(c));
}
/**
* Returns {@code true} if clicking Enter (ASCII 10, or '\n') should submit the enclosed form (if any).
* The default implementation returns {@code false}.
* @return {@code true} if clicking Enter should submit the enclosed form (if any)
*/
protected boolean isSubmittableByEnter() {
return false;
}
/**
* Searches for an element based on the specified criteria, returning the first element which matches
* said criteria. Only elements which are descendants of this element are included in the search.
*
* @param elementName the name of the element to search for
* @param attributeName the name of the attribute to search for
* @param attributeValue the value of the attribute to search for
* @param the sub-element type
* @return the first element which matches the specified search criteria
* @throws ElementNotFoundException if no element matches the specified search criteria
*/
public final E getOneHtmlElementByAttribute(final String elementName,
final String attributeName,
final String attributeValue) throws ElementNotFoundException {
WebAssert.notNull("elementName", elementName);
WebAssert.notNull("attributeName", attributeName);
WebAssert.notNull("attributeValue", attributeValue);
final List list = getElementsByAttribute(elementName, attributeName, attributeValue);
if (list.isEmpty()) {
throw new ElementNotFoundException(elementName, attributeName, attributeValue);
}
return list.get(0);
}
/**
* Returns all elements which are descendants of this element and match the specified search criteria.
*
* @param elementName the name of the element to search for
* @param attributeName the name of the attribute to search for
* @param attributeValue the value of the attribute to search for
* @param the sub-element type
* @return all elements which are descendants of this element and match the specified search criteria
*/
@SuppressWarnings("unchecked")
public final List getElementsByAttribute(
final String elementName,
final String attributeName,
final String attributeValue) {
final List list = new ArrayList<>();
final String lowerCaseTagName = elementName.toLowerCase(Locale.ROOT);
for (final HtmlElement next : getHtmlElementDescendants()) {
if (next.getTagName().equals(lowerCaseTagName)) {
final String attValue = next.getAttribute(attributeName);
if (attValue.equals(attributeValue)) {
list.add((E) next);
}
}
}
return list;
}
/**
* Appends a child element to this HTML element with the specified tag name
* if this HTML element does not already have a child with that tag name.
* Returns the appended child element, or the first existent child element
* with the specified tag name if none was appended.
* @param tagName the tag name of the child to append
* @return the added child, or the first existing child if none was added
*/
public final HtmlElement appendChildIfNoneExists(final String tagName) {
final HtmlElement child;
final List children = getElementsByTagName(tagName);
if (children.isEmpty()) {
// Add a new child and return it.
child = (HtmlElement) ((HtmlPage) getPage()).createElement(tagName);
appendChild(child);
}
else {
// Return the first existing child.
child = children.get(0);
}
return child;
}
/**
* Removes the ith child element with the specified tag name
* from all relationships, if possible.
* @param tagName the tag name of the child to remove
* @param i the index of the child to remove
*/
public final void removeChild(final String tagName, final int i) {
final List children = getElementsByTagName(tagName);
if (i >= 0 && i < children.size()) {
children.get(i).remove();
}
}
/**
* INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
* Returns {@code true} if this element has any JavaScript functions that need to be executed when the
* specified event occurs.
* @param eventName the name of the event, such as "onclick" or "onblur", etc
* @return true if an event handler has been defined otherwise false
*/
public final boolean hasEventHandlers(final String eventName) {
if (getPage().getWebClient().isJavaScriptEngineEnabled()) {
final Object jsObj = getScriptableObject();
if (jsObj instanceof EventTarget) {
return ((EventTarget) jsObj).hasEventHandlers(eventName);
}
}
return false;
}
/**
* Adds an HtmlAttributeChangeListener to the listener list.
* The listener is registered for all attributes of this HtmlElement,
* as well as descendant elements.
*
* @param listener the attribute change listener to be added
* @see #removeHtmlAttributeChangeListener(HtmlAttributeChangeListener)
*/
public void addHtmlAttributeChangeListener(final HtmlAttributeChangeListener listener) {
WebAssert.notNull("listener", listener);
synchronized (attributeListeners_) {
attributeListeners_.add(listener);
}
}
/**
* Removes an HtmlAttributeChangeListener from the listener list.
* This method should be used to remove HtmlAttributeChangeListener that were registered
* for all attributes of this HtmlElement, as well as descendant elements.
*
* @param listener the attribute change listener to be removed
* @see #addHtmlAttributeChangeListener(HtmlAttributeChangeListener)
*/
public void removeHtmlAttributeChangeListener(final HtmlAttributeChangeListener listener) {
WebAssert.notNull("listener", listener);
synchronized (attributeListeners_) {
attributeListeners_.remove(listener);
}
}
/**
* {@inheritDoc}
*/
@Override
protected void checkChildHierarchy(final Node childNode) throws DOMException {
if (!((childNode instanceof Element) || (childNode instanceof Text)
|| (childNode instanceof Comment) || (childNode instanceof ProcessingInstruction)
|| (childNode instanceof CDATASection) || (childNode instanceof EntityReference))) {
throw new DOMException(DOMException.HIERARCHY_REQUEST_ERR,
"The Element may not have a child of this type: " + childNode.getNodeType());
}
super.checkChildHierarchy(childNode);
}
void setOwningForm(final HtmlForm form) {
owningForm_ = form;
}
/**
* Indicates if the attribute names are case sensitive.
* @return {@code false}
*/
@Override
protected boolean isAttributeCaseSensitive() {
return false;
}
/**
* Returns the value of the attribute {@code lang}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code lang} or an empty string if that attribute isn't defined
*/
public final String getLangAttribute() {
return getAttributeDirect("lang");
}
/**
* Returns the value of the attribute {@code xml:lang}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code xml:lang} or an empty string if that attribute isn't defined
*/
public final String getXmlLangAttribute() {
return getAttribute("xml:lang");
}
/**
* Returns the value of the attribute {@code dir}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code dir} or an empty string if that attribute isn't defined
*/
public final String getTextDirectionAttribute() {
return getAttributeDirect("dir");
}
/**
* Returns the value of the attribute {@code onclick}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onclick} or an empty string if that attribute isn't defined
*/
public final String getOnClickAttribute() {
return getAttributeDirect("onclick");
}
/**
* Returns the value of the attribute {@code ondblclick}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code ondblclick} or an empty string if that attribute isn't defined
*/
public final String getOnDblClickAttribute() {
return getAttributeDirect("ondblclick");
}
/**
* Returns the value of the attribute {@code onmousedown}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onmousedown} or an empty string if that attribute isn't defined
*/
public final String getOnMouseDownAttribute() {
return getAttributeDirect("onmousedown");
}
/**
* Returns the value of the attribute {@code onmouseup}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onmouseup} or an empty string if that attribute isn't defined
*/
public final String getOnMouseUpAttribute() {
return getAttributeDirect("onmouseup");
}
/**
* Returns the value of the attribute {@code onmouseover}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onmouseover} or an empty string if that attribute isn't defined
*/
public final String getOnMouseOverAttribute() {
return getAttributeDirect("onmouseover");
}
/**
* Returns the value of the attribute {@code onmousemove}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onmousemove} or an empty string if that attribute isn't defined
*/
public final String getOnMouseMoveAttribute() {
return getAttributeDirect("onmousemove");
}
/**
* Returns the value of the attribute {@code onmouseout}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onmouseout} or an empty string if that attribute isn't defined
*/
public final String getOnMouseOutAttribute() {
return getAttributeDirect("onmouseout");
}
/**
* Returns the value of the attribute {@code onkeypress}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onkeypress} or an empty string if that attribute isn't defined
*/
public final String getOnKeyPressAttribute() {
return getAttributeDirect("onkeypress");
}
/**
* Returns the value of the attribute {@code onkeydown}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onkeydown} or an empty string if that attribute isn't defined
*/
public final String getOnKeyDownAttribute() {
return getAttributeDirect("onkeydown");
}
/**
* Returns the value of the attribute {@code onkeyup}. Refer to the
* HTML 4.01
* documentation for details on the use of this attribute.
*
* @return the value of the attribute {@code onkeyup} or an empty string if that attribute isn't defined
*/
public final String getOnKeyUpAttribute() {
return getAttributeDirect("onkeyup");
}
/**
* {@inheritDoc}
*/
@Override
public String getCanonicalXPath() {
final DomNode parent = getParentNode();
if (parent.getNodeType() == DOCUMENT_NODE) {
return "/" + getNodeName();
}
return parent.getCanonicalXPath() + '/' + getXPathToken();
}
/**
* Returns the XPath token for this node only.
*/
private String getXPathToken() {
final DomNode parent = getParentNode();
int total = 0;
int nodeIndex = 0;
for (final DomNode child : parent.getChildren()) {
if (child.getNodeType() == ELEMENT_NODE && child.getNodeName().equals(getNodeName())) {
total++;
}
if (child == this) {
nodeIndex = total;
}
}
if (nodeIndex == 1 && total == 1) {
return getNodeName();
}
return getNodeName() + '[' + nodeIndex + ']';
}
/**
* @return true if the hidden attribute is set.
*/
public boolean isHidden() {
return ATTRIBUTE_NOT_DEFINED != getAttributeDirect("hidden");
}
/**
* {@inheritDoc}
* Overwritten to support the hidden attribute (html5).
*/
@Override
public boolean isDisplayed() {
if (isHidden()) {
return false;
}
return super.isDisplayed();
}
/**
* INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
*
* Returns the default display style.
*
* @return the default display style
*/
public DisplayStyle getDefaultStyleDisplay() {
return DisplayStyle.BLOCK;
}
/**
* Helper for src retrieval and normalization.
*
* @return the value of the attribute {@code src} with all line breaks removed
* or an empty string if that attribute isn't defined.
*/
protected final String getSrcAttributeNormalized() {
// at the moment StringUtils.replaceChars returns the org string
// if nothing to replace was found but the doc implies, that we
// can't trust on this in the future
final String attrib = getAttributeDirect(SRC_ATTRIBUTE);
if (ATTRIBUTE_NOT_DEFINED == attrib) {
return attrib;
}
return StringUtils.replaceChars(attrib, "\r\n", "");
}
/**
* INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
*
* Detach this node from all relationships with other nodes.
* This is the first step of a move.
*/
@Override
protected void detach() {
final SgmlPage page = getPage();
if (!page.getWebClient().isJavaScriptEngineEnabled()) {
super.detach();
return;
}
final Object document = page.getScriptableObject();
if (document instanceof HTMLDocument) {
final HTMLDocument doc = (HTMLDocument) document;
final Object activeElement = doc.getActiveElement();
if (activeElement == getScriptableObject()) {
doc.setActiveElement(null);
if (hasFeature(HTMLELEMENT_REMOVE_ACTIVE_TRIGGERS_BLUR_EVENT)) {
((HtmlPage) page).setFocusedElement(null);
}
else {
((HtmlPage) page).setElementWithFocus(null);
}
}
else {
for (final DomNode child : getChildNodes()) {
if (activeElement == child.getScriptableObject()) {
doc.setActiveElement(null);
if (hasFeature(HTMLELEMENT_REMOVE_ACTIVE_TRIGGERS_BLUR_EVENT)) {
((HtmlPage) page).setFocusedElement(null);
}
else {
((HtmlPage) page).setElementWithFocus(null);
}
break;
}
}
}
}
super.detach();
}
/**
* {@inheritDoc}
*/
@Override
public boolean handles(final Event event) {
if (Event.TYPE_BLUR.equals(event.getType()) || Event.TYPE_FOCUS.equals(event.getType())) {
return this instanceof SubmittableElement || getTabIndex() != null;
}
if (isDisabledElementAndDisabled()) {
return false;
}
return super.handles(event);
}
/**
* Returns whether the {@code SHIFT} is currently pressed.
* @return whether the {@code SHIFT} is currently pressed
*/
protected boolean isShiftPressed() {
return shiftPressed_;
}
/**
* Returns whether the {@code CTRL} is currently pressed.
* @return whether the {@code CTRL} is currently pressed
*/
public boolean isCtrlPressed() {
return ctrlPressed_;
}
/**
* Returns whether the {@code ALT} is currently pressed.
* @return whether the {@code ALT} is currently pressed
*/
public boolean isAltPressed() {
return altPressed_;
}
/**
* Returns whether this element satisfies all form validation constraints set.
* @return whether this element satisfies all form validation constraints set
*/
public boolean isValid() {
return !isRequiredSupported()
|| ATTRIBUTE_NOT_DEFINED == getAttributeDirect(ATTRIBUTE_REQUIRED)
|| !getAttributeDirect("value").isEmpty();
}
/**
* Returns whether this element supports the {@code required} constraint.
* @return whether this element supports the {@code required} constraint
*/
protected boolean isRequiredSupported() {
return false;
}
/**
* @return the true if the required attribute is set
*/
public boolean isRequired() {
return isRequiredSupported() && hasAttribute(ATTRIBUTE_REQUIRED);
}
/**
* @return the true if the required attribute is supported and set
*/
public boolean isOptional() {
return isRequiredSupported() && !hasAttribute(ATTRIBUTE_REQUIRED);
}
/**
* Sets the {@code required} attribute.
* @param required the new attribute value
*/
public void setRequired(final boolean required) {
if (isRequiredSupported()) {
if (required) {
setAttribute(ATTRIBUTE_REQUIRED, ATTRIBUTE_REQUIRED);
}
else {
removeAttribute(ATTRIBUTE_REQUIRED);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public DomNode cloneNode(final boolean deep) {
final HtmlElement newNode = (HtmlElement) super.cloneNode(deep);
if (!deep) {
synchronized (attributeListeners_) {
newNode.attributeListeners_.clear();
newNode.attributeListeners_.addAll(attributeListeners_);
}
}
return newNode;
}
}
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