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A headless browser intended for use in testing web-based applications.
/*
* Copyright (c) 2002-2021 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.javascript.host.css;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.CSS_STYLE_PROP_FONT_DISCONNECTED_IS_EMPTY;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTHIGHT_INPUT_17;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTHIGHT_INPUT_18;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTHIGHT_RADIO_CHECKBOX_10;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTWIDTH_INPUT_TEXT_143;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTWIDTH_INPUT_TEXT_173;
import static com.gargoylesoftware.htmlunit.BrowserVersionFeatures.JS_CLIENTWIDTH_RADIO_CHECKBOX_10;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.FF;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.FF78;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.ACCELERATOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.AZIMUTH;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BACKGROUND_ATTACHMENT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BACKGROUND_COLOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BACKGROUND_IMAGE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BACKGROUND_POSITION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BACKGROUND_REPEAT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_BOTTOM_COLOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_BOTTOM_STYLE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_BOTTOM_WIDTH;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_COLLAPSE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_LEFT_COLOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_LEFT_STYLE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BORDER_SPACING;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.BOX_SIZING;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.CAPTION_SIDE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.COLOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.CSS_FLOAT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.CURSOR;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.DIRECTION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.DISPLAY;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.ELEVATION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.EMPTY_CELLS;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT_FAMILY;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT_SIZE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT_STYLE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT_VARIANT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.FONT_WEIGHT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.HEIGHT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LEFT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LETTER_SPACING;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LINE_HEIGHT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LIST_STYLE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LIST_STYLE_IMAGE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LIST_STYLE_POSITION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.LIST_STYLE_TYPE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.MARGIN;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.MARGIN_LEFT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.MARGIN_RIGHT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.ORPHANS;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.OVERFLOW;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.PADDING;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.PITCH;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.PITCH_RANGE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.POSITION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.QUOTES;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.RICHNESS;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.SPEAK;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.SPEAK_HEADER;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.SPEAK_NUMERAL;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.SPEAK_PUNCTUATION;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.SPEECH_RATE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.STRESS;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.TEXT_ALIGN;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.TEXT_INDENT;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.TEXT_TRANSFORM;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.TOP;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.VISIBILITY;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.VOICE_FAMILY;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.VOLUME;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.WHITE_SPACE;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.WIDOWS;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.WIDTH;
import static com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition.WORD_SPACING;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.text.AttributedString;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;
import org.apache.commons.lang3.StringUtils;
import com.gargoylesoftware.css.dom.CSSStyleDeclarationImpl;
import com.gargoylesoftware.css.dom.Property;
import com.gargoylesoftware.css.parser.selector.Selector;
import com.gargoylesoftware.css.parser.selector.SelectorSpecificity;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.Page;
import com.gargoylesoftware.htmlunit.css.StyleElement;
import com.gargoylesoftware.htmlunit.html.BaseFrameElement;
import com.gargoylesoftware.htmlunit.html.DomElement;
import com.gargoylesoftware.htmlunit.html.DomNode;
import com.gargoylesoftware.htmlunit.html.HtmlButton;
import com.gargoylesoftware.htmlunit.html.HtmlButtonInput;
import com.gargoylesoftware.htmlunit.html.HtmlCheckBoxInput;
import com.gargoylesoftware.htmlunit.html.HtmlDivision;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlFileInput;
import com.gargoylesoftware.htmlunit.html.HtmlHiddenInput;
import com.gargoylesoftware.htmlunit.html.HtmlImage;
import com.gargoylesoftware.htmlunit.html.HtmlInlineFrame;
import com.gargoylesoftware.htmlunit.html.HtmlInput;
import com.gargoylesoftware.htmlunit.html.HtmlPasswordInput;
import com.gargoylesoftware.htmlunit.html.HtmlRadioButtonInput;
import com.gargoylesoftware.htmlunit.html.HtmlResetInput;
import com.gargoylesoftware.htmlunit.html.HtmlSelect;
import com.gargoylesoftware.htmlunit.html.HtmlSpan;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextArea;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxClass;
import com.gargoylesoftware.htmlunit.javascript.host.Element;
import com.gargoylesoftware.htmlunit.javascript.host.css.StyleAttributes.Definition;
import com.gargoylesoftware.htmlunit.javascript.host.dom.Text;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLBodyElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLCanvasElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLDataElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLDivElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLIFrameElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLImageElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLLegendElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLMenuItemElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLOutputElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLSlotElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLTimeElement;
import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLUnknownElement;
import net.sourceforge.htmlunit.corejs.javascript.Context;
import net.sourceforge.htmlunit.corejs.javascript.Scriptable;
/**
* An object for a CSSStyleDeclaration, which is computed.
*
* @see com.gargoylesoftware.htmlunit.javascript.host.Window#getComputedStyle(Object, String)
*
* @author Ahmed Ashour
* @author Marc Guillemot
* @author Ronald Brill
* @author Frank Danek
* @author Alex Gorbatovsky
*/
@JsxClass(isJSObject = false, value = {FF, FF78})
public class ComputedCSSStyleDeclaration extends CSSStyleDeclaration {
/** Denotes a value which should be returned as is. */
private static final String EMPTY_FINAL = new String("");
/** The set of 'inheritable' definitions. */
private static final Set INHERITABLE_DEFINITIONS = EnumSet.of(
AZIMUTH,
BORDER_COLLAPSE,
BORDER_SPACING,
CAPTION_SIDE,
COLOR,
CURSOR,
DIRECTION,
ELEVATION,
EMPTY_CELLS,
FONT_FAMILY,
FONT_SIZE,
FONT_STYLE,
FONT_VARIANT,
FONT_WEIGHT,
FONT,
LETTER_SPACING,
LINE_HEIGHT,
LIST_STYLE_IMAGE,
LIST_STYLE_POSITION,
LIST_STYLE_TYPE,
LIST_STYLE,
ORPHANS,
PITCH_RANGE,
PITCH,
QUOTES,
RICHNESS,
SPEAK_HEADER,
SPEAK_NUMERAL,
SPEAK_PUNCTUATION,
SPEAK,
SPEECH_RATE,
STRESS,
TEXT_ALIGN,
TEXT_INDENT,
TEXT_TRANSFORM,
VISIBILITY,
VOICE_FAMILY,
VOICE_FAMILY,
VOLUME,
WHITE_SPACE,
WIDOWS,
WORD_SPACING);
/**
* Local modifications maintained here rather than in the element. We use a sorted
* map so that results are deterministic and thus easily testable.
*/
private final SortedMap localModifications_ = new TreeMap<>();
/** The computed, cached width of the element to which this computed style belongs (no padding, borders, etc). */
private Integer width_;
/**
* The computed, cached height of the element to which this computed style belongs (no padding, borders, etc),
* taking child elements into account.
*/
private Integer height_;
/**
* The computed, cached height of the element to which this computed style belongs (no padding, borders, etc),
* not taking child elements into account.
*/
private Integer height2_;
/** The computed, cached horizontal padding (left + right) of the element to which this computed style belongs. */
private Integer paddingHorizontal_;
/** The computed, cached vertical padding (top + bottom) of the element to which this computed style belongs. */
private Integer paddingVertical_;
/** The computed, cached horizontal border (left + right) of the element to which this computed style belongs. */
private Integer borderHorizontal_;
/** The computed, cached vertical border (top + bottom) of the element to which this computed style belongs. */
private Integer borderVertical_;
/** The computed, cached top of the element to which this computed style belongs. */
private Integer top_;
/**
* Creates an instance.
*/
public ComputedCSSStyleDeclaration() {
}
/**
* Creates an instance.
*
* @param style the original Style
*/
public ComputedCSSStyleDeclaration(final CSSStyleDeclaration style) {
super(style.getElement());
getElement().setDefaults(this);
}
/**
* {@inheritDoc}
*
* This method does nothing as the object is read-only.
*/
@Override
protected void setStyleAttribute(final String name, final String newValue) {
// Empty.
}
/**
* Makes a local, "computed", modification to this CSS style.
*
* @param declaration the style declaration
* @param selector the selector determining that the style applies to this element
*/
public void applyStyleFromSelector(final CSSStyleDeclarationImpl declaration, final Selector selector) {
final SelectorSpecificity specificity = selector.getSelectorSpecificity();
for (final Property prop : declaration.getProperties()) {
final String name = prop.getName();
final String value = declaration.getPropertyValue(name);
final String priority = declaration.getPropertyPriority(name);
applyLocalStyleAttribute(name, value, priority, specificity);
}
}
private void applyLocalStyleAttribute(final String name, final String newValue, final String priority,
final SelectorSpecificity specificity) {
if (!StyleElement.PRIORITY_IMPORTANT.equals(priority)) {
final StyleElement existingElement = localModifications_.get(name);
if (existingElement != null) {
if (StyleElement.PRIORITY_IMPORTANT.equals(existingElement.getPriority())) {
return; // can't override a !important rule by a normal rule. Ignore it!
}
else if (specificity.compareTo(existingElement.getSpecificity()) < 0) {
return; // can't override a rule with a rule having higher specificity
}
}
}
final StyleElement element = new StyleElement(name, newValue, priority, specificity);
localModifications_.put(name, element);
}
/**
* Makes a local, "computed", modification to this CSS style that won't override other
* style attributes of the same name. This method should be used to set default values
* for style attributes.
*
* @param name the name of the style attribute to set
* @param newValue the value of the style attribute to set
*/
public void setDefaultLocalStyleAttribute(final String name, final String newValue) {
final StyleElement element = new StyleElement(name, newValue, "", SelectorSpecificity.DEFAULT_STYLE_ATTRIBUTE);
localModifications_.put(name, element);
}
@Override
protected StyleElement getStyleElement(final String name) {
final StyleElement existent = super.getStyleElement(name);
if (localModifications_ != null) {
final StyleElement localStyleMod = localModifications_.get(name);
if (localStyleMod == null) {
return existent;
}
if (existent == null) {
// Local modifications represent either default style elements or style elements
// defined in stylesheets; either way, they shouldn't overwrite any style
// elements derived directly from the HTML element's "style" attribute.
return localStyleMod;
}
// replace if !IMPORTANT
if (StyleElement.PRIORITY_IMPORTANT.equals(localStyleMod.getPriority())) {
if (StyleElement.PRIORITY_IMPORTANT.equals(existent.getPriority())) {
if (existent.getSpecificity().compareTo(localStyleMod.getSpecificity()) < 0) {
return localStyleMod;
}
}
else {
return localStyleMod;
}
}
}
return existent;
}
private String defaultIfEmpty(final String str, final StyleAttributes.Definition definition) {
return defaultIfEmpty(str, definition, false);
}
private String defaultIfEmpty(final String str, final StyleAttributes.Definition definition,
final boolean isPixel) {
if (!getElement().getDomNodeOrDie().isAttachedToPage()
&& getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return EMPTY_FINAL;
}
if (str == null || str.isEmpty()) {
return definition.getDefaultComputedValue(getBrowserVersion());
}
if (isPixel) {
return pixelString(str);
}
return str;
}
/**
* @param toReturnIfEmptyOrDefault the value to return if empty or equals the {@code defualtValue}
* @param defaultValue the default value of the string
* @return the string, or {@code toReturnIfEmptyOrDefault}
*/
String defaultIfEmpty(final String str, final String toReturnIfEmptyOrDefault, final String defaultValue) {
if (!getElement().getDomNodeOrDie().isAttachedToPage()
&& getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return EMPTY_FINAL;
}
if (str == null || str.isEmpty() || str.equals(defaultValue)) {
return toReturnIfEmptyOrDefault;
}
return str;
}
/**
* {@inheritDoc}
*/
@Override
public String getAccelerator() {
return defaultIfEmpty(getStyleAttribute(ACCELERATOR, false), ACCELERATOR);
}
/**
* {@inheritDoc}
*/
@Override
public String getBackgroundAttachment() {
return defaultIfEmpty(super.getBackgroundAttachment(), BACKGROUND_ATTACHMENT);
}
/**
* {@inheritDoc}
*/
@Override
public String getBackgroundColor() {
final String value = super.getBackgroundColor();
if (StringUtils.isEmpty(value)) {
return BACKGROUND_COLOR.getDefaultComputedValue(getBrowserVersion());
}
return toRGBColor(value);
}
/**
* {@inheritDoc}
*/
@Override
public String getBackgroundImage() {
return defaultIfEmpty(super.getBackgroundImage(), BACKGROUND_IMAGE);
}
/**
* Gets the {@code backgroundPosition} style attribute.
* @return the style attribute
*/
@Override
public String getBackgroundPosition() {
return defaultIfEmpty(super.getBackgroundPosition(), BACKGROUND_POSITION);
}
/**
* {@inheritDoc}
*/
@Override
public String getBackgroundRepeat() {
return defaultIfEmpty(super.getBackgroundRepeat(), BACKGROUND_REPEAT);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderBottomColor() {
return defaultIfEmpty(super.getBorderBottomColor(), BORDER_BOTTOM_COLOR);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderBottomStyle() {
return defaultIfEmpty(super.getBorderBottomStyle(), BORDER_BOTTOM_STYLE);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderBottomWidth() {
return pixelString(defaultIfEmpty(super.getBorderBottomWidth(), BORDER_BOTTOM_WIDTH));
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderLeftColor() {
return defaultIfEmpty(super.getBorderLeftColor(), BORDER_LEFT_COLOR);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderLeftStyle() {
return defaultIfEmpty(super.getBorderLeftStyle(), BORDER_LEFT_STYLE);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderLeftWidth() {
return pixelString(defaultIfEmpty(super.getBorderLeftWidth(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderRightColor() {
return defaultIfEmpty(super.getBorderRightColor(), "rgb(0, 0, 0)", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderRightStyle() {
return defaultIfEmpty(super.getBorderRightStyle(), NONE, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderRightWidth() {
return pixelString(defaultIfEmpty(super.getBorderRightWidth(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderTopColor() {
return defaultIfEmpty(super.getBorderTopColor(), "rgb(0, 0, 0)", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderTopStyle() {
return defaultIfEmpty(super.getBorderTopStyle(), NONE, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getBorderTopWidth() {
return pixelString(defaultIfEmpty(super.getBorderTopWidth(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getBottom() {
return defaultIfEmpty(super.getBottom(), AUTO, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getColor() {
final String value = defaultIfEmpty(super.getColor(), "rgb(0, 0, 0)", null);
return toRGBColor(value);
}
/**
* {@inheritDoc}
*/
@Override
public String getCssFloat() {
return defaultIfEmpty(super.getCssFloat(), CSS_FLOAT);
}
/**
* {@inheritDoc}
*/
@Override
public String getDisplay() {
// don't use defaultIfEmpty for performance
// (no need to calculate the default if not empty)
final DomElement domElem = getElement().getDomNodeOrDie();
if (!domElem.isAttachedToPage()) {
final BrowserVersion browserVersion = getBrowserVersion();
if (browserVersion.hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return "";
}
}
final String value = super.getStyleAttribute(DISPLAY, false);
if (StringUtils.isEmpty(value)) {
if (domElem instanceof HtmlElement) {
return ((HtmlElement) domElem).getDefaultStyleDisplay().value();
}
return "";
}
return value;
}
/**
* {@inheritDoc}
*/
@Override
public String getFont() {
if (getBrowserVersion().hasFeature(CSS_STYLE_PROP_FONT_DISCONNECTED_IS_EMPTY)
&& getElement().getDomNodeOrDie().isAttachedToPage()) {
return super.getFont();
}
return "";
}
/**
* {@inheritDoc}
*/
@Override
public String getFontSize() {
String value = super.getFontSize();
if (!value.isEmpty()) {
value = pixelValue(value) + "px";
}
return value;
}
/**
* {@inheritDoc}
*/
@Override
public String getLineHeight() {
return defaultIfEmpty(super.getLineHeight(), LINE_HEIGHT);
}
/**
* {@inheritDoc}
*/
@Override
public String getFontFamily() {
return defaultIfEmpty(super.getFontFamily(), FONT_FAMILY);
}
/**
* {@inheritDoc}
*/
@Override
public String getHeight() {
if (NONE.equals(getDisplay())) {
return AUTO;
}
final Element elem = getElement();
if (!elem.getDomNodeOrDie().isAttachedToPage()) {
if (getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return "";
}
if (getStyleAttribute(HEIGHT, true).isEmpty()) {
return AUTO;
}
}
final int windowHeight = elem.getWindow().getWebWindow().getInnerHeight();
return pixelString(elem, new CssValue(0, windowHeight) {
@Override
public String get(final ComputedCSSStyleDeclaration style) {
final String offsetHeight = ((HTMLElement) elem).getOffsetHeight() + "px";
return defaultIfEmpty(style.getStyleAttribute(HEIGHT, true), offsetHeight, AUTO);
}
});
}
/**
* {@inheritDoc}
*/
@Override
public String getLeft() {
final String superLeft = super.getLeft();
if (!superLeft.endsWith("%")) {
return defaultIfEmpty(superLeft, AUTO, null);
}
final Element elem = getElement();
return pixelString(elem, new CssValue(0, 0) {
@Override
public String get(final ComputedCSSStyleDeclaration style) {
if (style.getElement() == elem) {
return style.getStyleAttribute(LEFT, true);
}
return style.getStyleAttribute(WIDTH, true);
}
});
}
/**
* {@inheritDoc}
*/
@Override
public String getLetterSpacing() {
return defaultIfEmpty(super.getLetterSpacing(), "normal", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getMargin() {
return defaultIfEmpty(super.getMargin(), MARGIN, true);
}
/**
* {@inheritDoc}
*/
@Override
public String getMarginBottom() {
return pixelString(defaultIfEmpty(super.getMarginBottom(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getMarginLeft() {
return getMarginX(super.getMarginLeft(), MARGIN_LEFT);
}
/**
* {@inheritDoc}
*/
@Override
public String getMarginRight() {
return getMarginX(super.getMarginRight(), MARGIN_RIGHT);
}
private String getMarginX(final String superMarginX, final Definition definition) {
if (!superMarginX.endsWith("%")) {
return pixelString(defaultIfEmpty(superMarginX, "0px", null));
}
final Element elem = getElement();
if (!elem.getDomNodeOrDie().isAttachedToPage()
&& getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return "";
}
final int windowWidth = elem.getWindow().getWebWindow().getInnerWidth();
return pixelString(elem, new CssValue(0, windowWidth) {
@Override
public String get(final ComputedCSSStyleDeclaration style) {
if (style.getElement() == elem) {
return style.getStyleAttribute(definition, true);
}
return style.getStyleAttribute(WIDTH, true);
}
});
}
/**
* {@inheritDoc}
*/
@Override
public String getMarginTop() {
return pixelString(defaultIfEmpty(super.getMarginTop(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getMaxHeight() {
return defaultIfEmpty(super.getMaxHeight(), NONE, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getMaxWidth() {
return defaultIfEmpty(super.getMaxWidth(), NONE, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getMinHeight() {
return defaultIfEmpty(super.getMinHeight(), "0px", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getMinWidth() {
return defaultIfEmpty(super.getMinWidth(), "0px", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getOpacity() {
return defaultIfEmpty(super.getOpacity(), "1", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getOutlineWidth() {
return defaultIfEmpty(super.getOutlineWidth(), "0px", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getPadding() {
return defaultIfEmpty(super.getPadding(), PADDING, true);
}
/**
* {@inheritDoc}
*/
@Override
public String getPaddingBottom() {
return pixelString(defaultIfEmpty(super.getPaddingBottom(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getPaddingLeft() {
return pixelString(defaultIfEmpty(super.getPaddingLeft(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getPaddingRight() {
return pixelString(defaultIfEmpty(super.getPaddingRight(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getPaddingTop() {
return pixelString(defaultIfEmpty(super.getPaddingTop(), "0px", null));
}
/**
* {@inheritDoc}
*/
@Override
public String getRight() {
return defaultIfEmpty(super.getRight(), AUTO, null);
}
/**
* {@inheritDoc}
*/
@Override
public String getTextIndent() {
return defaultIfEmpty(super.getTextIndent(), "0px", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getTop() {
final Element elem = getElement();
if (!elem.getDomNodeOrDie().isAttachedToPage()
&& getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return "";
}
final String superTop = super.getTop();
if (!superTop.endsWith("%")) {
return defaultIfEmpty(superTop, TOP);
}
return pixelString(elem, new CssValue(0, 0) {
@Override
public String get(final ComputedCSSStyleDeclaration style) {
if (style.getElement() == elem) {
return style.getStyleAttribute(TOP, true);
}
return style.getStyleAttribute(HEIGHT, true);
}
});
}
/**
* {@inheritDoc}
*/
@Override
public String getVerticalAlign() {
return defaultIfEmpty(super.getVerticalAlign(), "baseline", null);
}
/**
* {@inheritDoc}
*/
@Override
public String getWidows() {
return defaultIfEmpty(super.getWidows(), WIDOWS);
}
/**
* {@inheritDoc}
*/
@Override
public String getOrphans() {
return defaultIfEmpty(super.getOrphans(), ORPHANS);
}
/**
* {@inheritDoc}
*/
@Override
public String getPosition() {
return defaultIfEmpty(super.getPosition(), POSITION);
}
/**
* {@inheritDoc}
*/
@Override
public String getWidth() {
if (NONE.equals(getDisplay())) {
return AUTO;
}
final Element elem = getElement();
if (!elem.getDomNodeOrDie().isAttachedToPage()) {
if (getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return "";
}
if (getStyleAttribute(WIDTH, true).isEmpty()) {
return AUTO;
}
}
final int windowWidth = elem.getWindow().getWebWindow().getInnerWidth();
return pixelString(elem, new CssValue(0, windowWidth) {
@Override
public String get(final ComputedCSSStyleDeclaration style) {
final String value = style.getStyleAttribute(WIDTH, true);
if (StringUtils.isEmpty(value)) {
if (ABSOLUTE.equals(getStyleAttribute(POSITION, true))) {
final String content = getDomNodeOrDie().getTextContent();
// do this only for small content
// at least for empty div's this is more correct
if (null != content && content.length() < 13) {
return (content.length() * 7) + "px";
}
}
int windowDefaultValue = getWindowDefaultValue();
if (elem instanceof HTMLBodyElement) {
windowDefaultValue -= 16;
}
return windowDefaultValue + "px";
}
else if (AUTO.equals(value)) {
int windowDefaultValue = getWindowDefaultValue();
if (elem instanceof HTMLBodyElement) {
windowDefaultValue -= 16;
}
return windowDefaultValue + "px";
}
return value;
}
});
}
/**
* Returns the element's width in pixels, possibly including its padding and border.
* @param includeBorder whether or not to include the border width in the returned value
* @param includePadding whether or not to include the padding width in the returned value
* @return the element's width in pixels, possibly including its padding and border
*/
public int getCalculatedWidth(final boolean includeBorder, final boolean includePadding) {
if (!getElement().getDomNodeOrNull().isAttachedToPage()) {
return 0;
}
int width = getCalculatedWidth();
if (!"border-box".equals(getStyleAttribute(BOX_SIZING))) {
if (includeBorder) {
width += getBorderHorizontal();
}
else if (isScrollable(true, true) && !(getElement() instanceof HTMLBodyElement)
&& getElement().getDomNodeOrDie().isAttachedToPage()) {
width -= 17;
}
if (includePadding) {
width += getPaddingHorizontal();
}
}
return width;
}
private int getCalculatedWidth() {
if (width_ != null) {
return width_.intValue();
}
final Element element = getElement();
final DomNode node = element.getDomNodeOrDie();
if (!node.mayBeDisplayed()) {
width_ = Integer.valueOf(0);
return 0;
}
final String display = getDisplay();
if (NONE.equals(display)) {
width_ = Integer.valueOf(0);
return 0;
}
final int width;
final String styleWidth = super.getWidth();
final DomNode parent = node.getParentNode();
// width is ignored for inline elements
if (("inline".equals(display) || StringUtils.isEmpty(styleWidth)) && parent instanceof HtmlElement) {
// hack: TODO find a way to specify default values for different tags
if (element instanceof HTMLCanvasElement) {
return 300;
}
// Width not explicitly set.
final String cssFloat = getCssFloat();
if ("right".equals(cssFloat) || "left".equals(cssFloat)
|| ABSOLUTE.equals(getStyleAttribute(POSITION, true))) {
// We're floating; simplistic approximation: text content * pixels per character.
width = node.getTextContent().length() * getBrowserVersion().getPixesPerChar();
}
else if (BLOCK.equals(display)) {
final int windowWidth = element.getWindow().getWebWindow().getInnerWidth();
if (element instanceof HTMLBodyElement) {
width = windowWidth - 16;
}
else {
// Block elements take up 100% of the parent's width.
final HTMLElement parentJS = parent.getScriptableObject();
width = pixelValue(parentJS, new CssValue(0, windowWidth) {
@Override public String get(final ComputedCSSStyleDeclaration style) {
return style.getWidth();
}
}) - (getBorderHorizontal() + getPaddingHorizontal());
}
}
else if (node instanceof HtmlSubmitInput || node instanceof HtmlResetInput
|| node instanceof HtmlButtonInput || node instanceof HtmlButton
|| node instanceof HtmlFileInput) {
final String text = node.asText();
// default font for buttons is a bit smaller than the body font size
width = 10 + (int) (text.length() * getBrowserVersion().getPixesPerChar() * 0.9);
}
else if (node instanceof HtmlTextInput || node instanceof HtmlPasswordInput) {
final BrowserVersion browserVersion = getBrowserVersion();
if (browserVersion.hasFeature(JS_CLIENTWIDTH_INPUT_TEXT_143)) {
return 143;
}
if (browserVersion.hasFeature(JS_CLIENTWIDTH_INPUT_TEXT_173)) {
return 173;
}
width = 145; // FF
}
else if (node instanceof HtmlRadioButtonInput || node instanceof HtmlCheckBoxInput) {
final BrowserVersion browserVersion = getBrowserVersion();
if (browserVersion.hasFeature(JS_CLIENTWIDTH_RADIO_CHECKBOX_10)) {
width = 10;
}
else {
width = 13;
}
}
else if (node instanceof HtmlTextArea) {
width = 100; // wild guess
}
else if (node instanceof HtmlImage) {
width = ((HtmlImage) node).getWidthOrDefault();
}
else {
// Inline elements take up however much space is required by their children.
width = getContentWidth();
}
}
else if (AUTO.equals(styleWidth)) {
width = element.getWindow().getWebWindow().getInnerWidth();
}
else {
// Width explicitly set in the style attribute, or there was no parent to provide guidance.
width = pixelValue(element, new CssValue(0, element.getWindow().getWebWindow().getInnerWidth()) {
@Override public String get(final ComputedCSSStyleDeclaration style) {
return style.getStyleAttribute(WIDTH, true);
}
});
}
width_ = Integer.valueOf(width);
return width;
}
/**
* Returns the total width of the element's children.
* @return the total width of the element's children
*/
public int getContentWidth() {
int width = 0;
final DomNode domNode = getDomNodeOrDie();
Iterable children = domNode.getChildren();
if (domNode instanceof BaseFrameElement) {
final Page enclosedPage = ((BaseFrameElement) domNode).getEnclosedPage();
if (enclosedPage != null && enclosedPage.isHtmlPage()) {
children = ((DomNode) enclosedPage).getChildren();
}
}
for (final DomNode child : children) {
if (child.getScriptableObject() instanceof HTMLElement) {
final HTMLElement e = child.getScriptableObject();
final ComputedCSSStyleDeclaration style = e.getWindow().getComputedStyle(e, null);
final int w = style.getCalculatedWidth(true, true);
width += w;
}
else if (child.getScriptableObject() instanceof Text) {
final DomNode parent = child.getParentNode();
if (parent instanceof HtmlElement) {
final HTMLElement e = child.getParentNode().getScriptableObject();
final ComputedCSSStyleDeclaration style = e.getWindow().getComputedStyle(e, null);
final int height = getBrowserVersion().getFontHeight(style.getFontSize());
width += child.getTextContent().length() * (int) (height / 1.8f);
}
else {
width += child.getTextContent().length() * getBrowserVersion().getPixesPerChar();
}
}
}
return width;
}
/**
* Returns the element's height, possibly including its padding and border.
* @param includeBorder whether or not to include the border height in the returned value
* @param includePadding whether or not to include the padding height in the returned value
* @return the element's height, possibly including its padding and border
*/
public int getCalculatedHeight(final boolean includeBorder, final boolean includePadding) {
if (!getElement().getDomNodeOrNull().isAttachedToPage()) {
return 0;
}
int height = getCalculatedHeight();
if (!"border-box".equals(getStyleAttribute(BOX_SIZING))) {
if (includeBorder) {
height += getBorderVertical();
}
else if (isScrollable(false, true) && !(getElement() instanceof HTMLBodyElement)
&& getElement().getDomNodeOrDie().isAttachedToPage()) {
height -= 17;
}
if (includePadding) {
height += getPaddingVertical();
}
}
return height;
}
/**
* Returns the element's calculated height, taking both relevant CSS and the element's children into account.
* @return the element's calculated height, taking both relevant CSS and the element's children into account
*/
private int getCalculatedHeight() {
if (height_ != null) {
return height_.intValue();
}
final Element element = getElement();
if (element instanceof HTMLImageElement) {
height_ = ((HtmlImage) element.getDomNodeOrDie()).getHeightOrDefault();
return height_;
}
final boolean isInline = "inline".equals(getDisplay()) && !(element instanceof HTMLIFrameElement);
// height is ignored for inline elements
if (isInline || super.getHeight().isEmpty()) {
final int contentHeight = getContentHeight();
if (contentHeight > 0) {
height_ = Integer.valueOf(contentHeight);
return height_;
}
}
height_ = Integer.valueOf(getEmptyHeight());
return height_;
}
/**
* Returns the element's calculated height taking relevant CSS into account, but not the element's child
* elements.
*
* @return the element's calculated height taking relevant CSS into account, but not the element's child
* elements
*/
private int getEmptyHeight() {
if (height2_ != null) {
return height2_.intValue();
}
final DomNode node = getElement().getDomNodeOrDie();
if (!node.mayBeDisplayed()) {
height2_ = Integer.valueOf(0);
return 0;
}
final String display = getDisplay();
if (NONE.equals(display)) {
height2_ = Integer.valueOf(0);
return 0;
}
final Element elem = getElement();
final int windowHeight = elem.getWindow().getWebWindow().getInnerHeight();
if (elem instanceof HTMLBodyElement) {
height2_ = windowHeight;
return windowHeight;
}
final boolean isInline = "inline".equals(display) && !(node instanceof HtmlInlineFrame);
// height is ignored for inline elements
final boolean explicitHeightSpecified = !isInline && !super.getHeight().isEmpty();
int defaultHeight;
if ((elem.getClass() == HTMLElement.class
|| elem instanceof HTMLDivElement
|| elem instanceof HTMLUnknownElement
|| elem instanceof HTMLMenuItemElement
|| elem instanceof HTMLDataElement
|| elem instanceof HTMLTimeElement
|| elem instanceof HTMLOutputElement
|| elem instanceof HTMLSlotElement
|| elem instanceof HTMLLegendElement)
&& StringUtils.isBlank(node.getTextContent())) {
defaultHeight = 0;
}
else if (elem.getFirstChild() == null) {
if (node instanceof HtmlRadioButtonInput || node instanceof HtmlCheckBoxInput) {
final BrowserVersion browser = getBrowserVersion();
if (browser.hasFeature(JS_CLIENTHIGHT_RADIO_CHECKBOX_10)) {
defaultHeight = 10;
}
else {
defaultHeight = 13;
}
}
else if (node instanceof HtmlButton) {
defaultHeight = 20;
}
else if (node instanceof HtmlInput && !(node instanceof HtmlHiddenInput)) {
final BrowserVersion browser = getBrowserVersion();
if (browser.hasFeature(JS_CLIENTHIGHT_INPUT_17)) {
defaultHeight = 17;
}
else if (browser.hasFeature(JS_CLIENTHIGHT_INPUT_18)) {
defaultHeight = 18;
}
else {
defaultHeight = 20;
}
}
else if (node instanceof HtmlSelect) {
defaultHeight = 20;
}
else if (node instanceof HtmlTextArea) {
defaultHeight = 49;
}
else if (node instanceof HtmlInlineFrame) {
defaultHeight = 154;
}
else {
defaultHeight = 0;
}
}
else {
final String fontSize = getFontSize();
defaultHeight = getBrowserVersion().getFontHeight(fontSize);
if (node instanceof HtmlDivision
|| node instanceof HtmlSpan) {
String width = getStyleAttribute(WIDTH, false);
// maybe we are enclosed something that forces a width
Element parent = getElement().getParentElement();
while (width.isEmpty() && parent != null) {
width = getWindow().getComputedStyle(parent, null).getStyleAttribute(WIDTH, false);
parent = parent.getParentElement();
}
final int pixelWidth = pixelValue(width);
final String content = node.asNormalizedText();
if (pixelWidth > 0
&& !width.isEmpty()
&& StringUtils.isNotBlank(content)) {
final String[] lines = StringUtils.split(content, '\n');
int lineCount = 0;
final int fontSizeInt = Integer.parseInt(fontSize.substring(0, fontSize.length() - 2));
final FontRenderContext fontRenderCtx = new FontRenderContext(null, false, true);
for (int i = 0; i < lines.length; i++) {
final String line = lines[i];
if (StringUtils.isBlank(line)) {
lineCount++;
}
else {
// width is specified, we have to to some line breaking
final AttributedString attributedString = new AttributedString(line);
attributedString.addAttribute(TextAttribute.SIZE, fontSizeInt / 1.1);
final LineBreakMeasurer lineBreakMeasurer =
new LineBreakMeasurer(attributedString.getIterator(), fontRenderCtx);
lineBreakMeasurer.nextLayout(pixelWidth);
lineCount++;
while (lineBreakMeasurer.getPosition() < line.length() && lineCount < 1000) {
lineBreakMeasurer.nextLayout(pixelWidth);
lineCount++;
}
}
}
defaultHeight *= lineCount;
}
else {
if (node instanceof HtmlSpan && StringUtils.isEmpty(content)) {
defaultHeight = 0;
}
else {
defaultHeight *= StringUtils.countMatches(content, '\n') + 1;
}
}
}
}
final int defaultWindowHeight = elem instanceof HTMLCanvasElement ? 150 : windowHeight;
int height = pixelValue(elem, new CssValue(defaultHeight, defaultWindowHeight) {
@Override public String get(final ComputedCSSStyleDeclaration style) {
final Element element = style.getElement();
if (element instanceof HTMLBodyElement) {
return String.valueOf(element.getWindow().getWebWindow().getInnerHeight());
}
// height is ignored for inline elements
if (isInline) {
return "";
}
return style.getStyleAttribute(HEIGHT, true);
}
});
if (height == 0 && !explicitHeightSpecified) {
height = defaultHeight;
}
height2_ = Integer.valueOf(height);
return height;
}
/**
* Returns the total height of the element's children.
* @return the total height of the element's children
*/
public int getContentHeight() {
// There are two different kinds of elements that might determine the content height:
// - elements with position:static or position:relative (elements that flow and build on each other)
// - elements with position:absolute (independent elements)
final DomNode node = getElement().getDomNodeOrDie();
if (!node.mayBeDisplayed()) {
return 0;
}
ComputedCSSStyleDeclaration lastFlowing = null;
final Set styles = new HashSet<>();
for (final DomNode child : node.getChildren()) {
if (child.mayBeDisplayed()) {
final Object scriptObj = child.getScriptableObject();
if (scriptObj instanceof HTMLElement) {
final HTMLElement e = (HTMLElement) scriptObj;
final ComputedCSSStyleDeclaration style = e.getWindow().getComputedStyle(e, null);
final String pos = style.getPositionWithInheritance();
if (STATIC.equals(pos) || RELATIVE.equals(pos)) {
lastFlowing = style;
}
else if (ABSOLUTE.equals(pos)) {
styles.add(style);
}
}
}
}
if (lastFlowing != null) {
styles.add(lastFlowing);
}
int max = 0;
for (final ComputedCSSStyleDeclaration style : styles) {
final int h = style.getTop(true, false, false) + style.getCalculatedHeight(true, true);
if (h > max) {
max = h;
}
}
return max;
}
/**
* Returns {@code true} if the element is scrollable along the specified axis.
* @param horizontal if {@code true}, the caller is interested in scrollability along the x-axis;
* if {@code false}, the caller is interested in scrollability along the y-axis
* @return {@code true} if the element is scrollable along the specified axis
*/
public boolean isScrollable(final boolean horizontal) {
return isScrollable(horizontal, false);
}
/**
* @param ignoreSize whether to consider the content/calculated width/height
*/
private boolean isScrollable(final boolean horizontal, final boolean ignoreSize) {
final boolean scrollable;
final Element node = getElement();
final String overflow = getStyleAttribute(OVERFLOW, true);
if (horizontal) {
// TODO: inherit, overflow-x
scrollable = (node instanceof HTMLBodyElement || "scroll".equals(overflow) || AUTO.equals(overflow))
&& (ignoreSize || getContentWidth() > getCalculatedWidth());
}
else {
// TODO: inherit, overflow-y
scrollable = (node instanceof HTMLBodyElement || "scroll".equals(overflow) || AUTO.equals(overflow))
&& (ignoreSize || getContentHeight() > getEmptyHeight());
}
return scrollable;
}
/**
* Returns the computed top (Y coordinate), relative to the node's parent's top edge.
* @param includeMargin whether or not to take the margin into account in the calculation
* @param includeBorder whether or not to take the border into account in the calculation
* @param includePadding whether or not to take the padding into account in the calculation
* @return the computed top (Y coordinate), relative to the node's parent's top edge
*/
public int getTop(final boolean includeMargin, final boolean includeBorder, final boolean includePadding) {
int top = 0;
if (null == top_) {
final String p = getPositionWithInheritance();
if (ABSOLUTE.equals(p)) {
top = getTopForAbsolutePositionWithInheritance();
}
else {
// Calculate the vertical displacement caused by *previous* siblings.
DomNode prev = getElement().getDomNodeOrDie().getPreviousSibling();
boolean prevHadComputedTop = false;
while (prev != null && !prevHadComputedTop) {
if (prev instanceof HtmlElement) {
final Element e = prev.getScriptableObject();
final ComputedCSSStyleDeclaration style = e.getWindow().getComputedStyle(e, null);
// only previous block elements are counting
final String display = style.getDisplay();
if (isBlock(display)) {
int prevTop = 0;
if (style.top_ == null) {
final String prevPosition = style.getPositionWithInheritance();
if (ABSOLUTE.equals(prevPosition)) {
prevTop += style.getTopForAbsolutePositionWithInheritance();
}
else {
if (RELATIVE.equals(prevPosition)) {
final String t = style.getTopWithInheritance();
prevTop += pixelValue(t);
}
}
}
else {
prevHadComputedTop = true;
prevTop += style.top_;
}
prevTop += style.getCalculatedHeight(true, true);
final int margin = pixelValue(style.getMarginTop());
prevTop += margin;
top += prevTop;
}
}
prev = prev.getPreviousSibling();
}
// If the position is relative, we also need to add the specified "top" displacement.
if (RELATIVE.equals(p)) {
final String t = getTopWithInheritance();
top += pixelValue(t);
}
}
top_ = Integer.valueOf(top);
}
else {
top = top_.intValue();
}
if (includeMargin) {
final int margin = pixelValue(getMarginTop());
top += margin;
}
if (includeBorder) {
final int border = pixelValue(getBorderTopWidth());
top += border;
}
if (includePadding) {
final int padding = getPaddingTopValue();
top += padding;
}
return top;
}
private static boolean isBlock(final String display) {
return display != null
&& !INLINE.equals(display)
&& !NONE.equals(display);
}
private int getTopForAbsolutePositionWithInheritance() {
final String t = getTopWithInheritance();
if (!AUTO.equals(t)) {
// No need to calculate displacement caused by sibling nodes.
return pixelValue(t);
}
final String b = getBottomWithInheritance();
if (!AUTO.equals(b)) {
// Estimate the vertical displacement caused by *all* siblings.
// This is very rough, and doesn't even take position or display types into account.
// It also doesn't take into account the fact that the parent's height may be hardcoded in CSS.
int top = 0;
DomNode child = getElement().getDomNodeOrDie().getParentNode().getFirstChild();
while (child != null) {
if (child instanceof HtmlElement && child.mayBeDisplayed()) {
top += 20;
}
child = child.getNextSibling();
}
top -= pixelValue(b);
return top;
}
return 0;
}
/**
* Returns the computed left (X coordinate), relative to the node's parent's left edge.
* @param includeMargin whether or not to take the margin into account in the calculation
* @param includeBorder whether or not to take the border into account in the calculation
* @param includePadding whether or not to take the padding into account in the calculation
* @return the computed left (X coordinate), relative to the node's parent's left edge
*/
public int getLeft(final boolean includeMargin, final boolean includeBorder, final boolean includePadding) {
final String p = getPositionWithInheritance();
final String l = getLeftWithInheritance();
final String r = getRightWithInheritance();
int left;
if (ABSOLUTE.equals(p) && !AUTO.equals(l)) {
// No need to calculate displacement caused by sibling nodes.
left = pixelValue(l);
}
else if (ABSOLUTE.equals(p) && !AUTO.equals(r)) {
// Need to calculate the horizontal displacement caused by *all* siblings.
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
final int parentWidth = style.getCalculatedWidth(false, false);
left = parentWidth - pixelValue(r);
}
else if (FIXED.equals(p) && !AUTO.equals(r)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
final ComputedCSSStyleDeclaration style = getWindow().getComputedStyle(getElement(), null);
final ComputedCSSStyleDeclaration parentStyle = parent.getWindow().getComputedStyle(parent, null);
left = pixelValue(parentStyle.getWidth()) - pixelValue(style.getWidth()) - pixelValue(r);
}
else if (FIXED.equals(p) && AUTO.equals(l)) {
// Fixed to the location at which the browser puts it via normal element flowing.
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
left = pixelValue(style.getLeftWithInheritance());
}
else if (STATIC.equals(p)) {
// We need to calculate the horizontal displacement caused by *previous* siblings.
left = 0;
DomNode prev = getElement().getDomNodeOrDie().getPreviousSibling();
while (prev != null) {
final Scriptable prevScriptable = prev.getScriptableObject();
if (prevScriptable instanceof HTMLElement) {
final HTMLElement e = (HTMLElement) prevScriptable;
final ComputedCSSStyleDeclaration style = e.getWindow().getComputedStyle(e, null);
final String d = style.getDisplay();
if (isBlock(d)) {
break;
}
else if (!NONE.equals(d)) {
left += style.getCalculatedWidth(true, true);
}
}
else if (prevScriptable instanceof Text) {
final String content = prev.getTextContent();
if (content != null) {
left += content.trim().length() * getBrowserVersion().getPixesPerChar();
}
}
prev = prev.getPreviousSibling();
}
}
else {
// Just use the CSS specified value.
left = pixelValue(l);
}
if (includeMargin) {
final int margin = getMarginLeftValue();
left += margin;
}
if (includeBorder) {
final int border = pixelValue(getBorderLeftWidth());
left += border;
}
if (includePadding) {
final int padding = getPaddingLeftValue();
left += padding;
}
return left;
}
/**
* Returns the CSS {@code position} attribute, replacing inherited values with the actual parent values.
* @return the CSS {@code position} attribute, replacing inherited values with the actual parent values
*/
public String getPositionWithInheritance() {
String p = getStyleAttribute(POSITION, true);
if (INHERIT.equals(p)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
if (parent == null) {
p = STATIC;
}
else {
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
p = style.getPositionWithInheritance();
}
}
return p;
}
/**
* Returns the CSS {@code left} attribute, replacing inherited values with the actual parent values.
* @return the CSS {@code left} attribute, replacing inherited values with the actual parent values
*/
public String getLeftWithInheritance() {
String left = getLeft();
if (INHERIT.equals(left)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
if (parent == null) {
left = AUTO;
}
else {
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
left = style.getLeftWithInheritance();
}
}
return left;
}
/**
* Returns the CSS {@code right} attribute, replacing inherited values with the actual parent values.
* @return the CSS {@code right} attribute, replacing inherited values with the actual parent values
*/
public String getRightWithInheritance() {
String right = getRight();
if (INHERIT.equals(right)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
if (parent == null) {
right = AUTO;
}
else {
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
right = style.getRightWithInheritance();
}
}
return right;
}
/**
* Returns the CSS {@code top} attribute, replacing inherited values with the actual parent values.
* @return the CSS {@code top} attribute, replacing inherited values with the actual parent values
*/
public String getTopWithInheritance() {
String top = getTop();
if (INHERIT.equals(top)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
if (parent == null) {
top = AUTO;
}
else {
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
top = style.getTopWithInheritance();
}
}
return top;
}
/**
* Returns the CSS {@code bottom} attribute, replacing inherited values with the actual parent values.
* @return the CSS {@code bottom} attribute, replacing inherited values with the actual parent values
*/
public String getBottomWithInheritance() {
String bottom = getBottom();
if (INHERIT.equals(bottom)) {
final HTMLElement parent = (HTMLElement) getElement().getParentElement();
if (parent == null) {
bottom = AUTO;
}
else {
final ComputedCSSStyleDeclaration style = parent.getWindow().getComputedStyle(parent, null);
bottom = style.getBottomWithInheritance();
}
}
return bottom;
}
/**
* Gets the left margin of the element.
* @return the value in pixels
*/
public int getMarginLeftValue() {
return pixelValue(getMarginLeft());
}
/**
* Gets the right margin of the element.
* @return the value in pixels
*/
public int getMarginRightValue() {
return pixelValue(getMarginRight());
}
/**
* Gets the top margin of the element.
* @return the value in pixels
*/
public int getMarginTopValue() {
return pixelValue(getMarginTop());
}
/**
* Gets the bottom margin of the element.
* @return the value in pixels
*/
public int getMarginBottomValue() {
return pixelValue(getMarginBottom());
}
/**
* Gets the left padding of the element.
* @return the value in pixels
*/
public int getPaddingLeftValue() {
return pixelValue(getPaddingLeft());
}
/**
* Gets the right padding of the element.
* @return the value in pixels
*/
public int getPaddingRightValue() {
return pixelValue(getPaddingRight());
}
/**
* Gets the top padding of the element.
* @return the value in pixels
*/
public int getPaddingTopValue() {
return pixelValue(getPaddingTop());
}
/**
* Gets the bottom padding of the element.
* @return the value in pixels
*/
public int getPaddingBottomValue() {
return pixelValue(getPaddingBottom());
}
private int getPaddingHorizontal() {
if (paddingHorizontal_ == null) {
paddingHorizontal_ =
Integer.valueOf(NONE.equals(getDisplay()) ? 0 : getPaddingLeftValue() + getPaddingRightValue());
}
return paddingHorizontal_.intValue();
}
private int getPaddingVertical() {
if (paddingVertical_ == null) {
paddingVertical_ =
Integer.valueOf(NONE.equals(getDisplay()) ? 0 : getPaddingTopValue() + getPaddingBottomValue());
}
return paddingVertical_.intValue();
}
/**
* Gets the size of the left border of the element.
* @return the value in pixels
*/
public int getBorderLeftValue() {
return pixelValue(getBorderLeftWidth());
}
/**
* Gets the size of the right border of the element.
* @return the value in pixels
*/
public int getBorderRightValue() {
return pixelValue(getBorderRightWidth());
}
/**
* Gets the size of the top border of the element.
* @return the value in pixels
*/
public int getBorderTopValue() {
return pixelValue(getBorderTopWidth());
}
/**
* Gets the size of the bottom border of the element.
* @return the value in pixels
*/
public int getBorderBottomValue() {
return pixelValue(getBorderBottomWidth());
}
private int getBorderHorizontal() {
if (borderHorizontal_ == null) {
borderHorizontal_ =
Integer.valueOf(NONE.equals(getDisplay()) ? 0 : getBorderLeftValue() + getBorderRightValue());
}
return borderHorizontal_.intValue();
}
private int getBorderVertical() {
if (borderVertical_ == null) {
borderVertical_ =
Integer.valueOf(NONE.equals(getDisplay()) ? 0 : getBorderTopValue() + getBorderBottomValue());
}
return borderVertical_.intValue();
}
/**
* {@inheritDoc}
*/
@Override
public String getWordSpacing() {
return defaultIfEmpty(super.getWordSpacing(), WORD_SPACING);
}
/**
* {@inheritDoc}
*/
@Override
public String getStyleAttribute(final Definition style, final boolean getDefaultValueIfEmpty) {
if (!getElement().getDomNodeOrDie().isAttachedToPage()
&& getBrowserVersion().hasFeature(CSS_STYLE_PROP_DISCONNECTED_IS_EMPTY)) {
return EMPTY_FINAL;
}
String value = super.getStyleAttribute(style, getDefaultValueIfEmpty);
if (value.isEmpty()) {
final Element parent = getElement().getParentElement();
if (INHERITABLE_DEFINITIONS.contains(style) && parent != null) {
value = getWindow().getComputedStyle(parent, null).getStyleAttribute(style, getDefaultValueIfEmpty);
}
else if (getDefaultValueIfEmpty) {
value = style.getDefaultComputedValue(getBrowserVersion());
}
}
return value;
}
/**
* {@inheritDoc}
*/
@Override
public Object getZIndex() {
final Object response = super.getZIndex();
if (response.toString().isEmpty()) {
return AUTO;
}
return response;
}
/**
* {@inheritDoc}
*/
@Override
public String getPropertyValue(final String name) {
// need to invoke the getter to take care of the default value
final Object property = getProperty(this, camelize(name));
if (property == NOT_FOUND) {
return super.getPropertyValue(name);
}
return Context.toString(property);
}
/**
* Returns the specified length value as a pixel length value, as long as we're not emulating IE.
* This method does NOT handle percentages correctly; use {@link #pixelValue(Element, CssValue)}
* if you need percentage support).
* @param value the length value to convert to a pixel length value
* @return the specified length value as a pixel length value
* @see #pixelString(Element, CSSStyleDeclaration.CssValue)
*/
protected String pixelString(final String value) {
if (EMPTY_FINAL == value || value.endsWith("px")) {
return value;
}
return pixelValue(value) + "px";
}
/**
* Returns the specified length CSS attribute value value as a pixel length value, as long as
* we're not emulating IE. If the specified CSS attribute value is a percentage, this method
* uses the specified value object to recursively retrieve the base (parent) CSS attribute value.
* @param element the element for which the CSS attribute value is to be retrieved
* @param value the CSS attribute value which is to be retrieved
* @return the specified length CSS attribute value as a pixel length value
* @see #pixelString(String)
*/
protected String pixelString(final Element element, final CssValue value) {
final String s = value.get(element);
if (s.endsWith("px")) {
return s;
}
return pixelValue(element, value) + "px";
}
}
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