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/*
* Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package javafx.scene;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.value.WritableValue;
import com.sun.javafx.css.CascadingStyle;
import javafx.css.CssMetaData;
import javafx.css.CssParser;
import javafx.css.FontCssMetaData;
import javafx.css.ParsedValue;
import javafx.css.PseudoClass;
import javafx.css.Rule;
import javafx.css.Selector;
import javafx.css.Style;
import javafx.css.StyleConverter;
import javafx.css.StyleOrigin;
import javafx.css.Styleable;
import javafx.css.StyleableProperty;
import javafx.css.Stylesheet;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import com.sun.javafx.css.CalculatedValue;
import com.sun.javafx.css.ParsedValueImpl;
import com.sun.javafx.css.PseudoClassState;
import com.sun.javafx.css.StyleCache;
import com.sun.javafx.css.StyleCacheEntry;
import com.sun.javafx.css.StyleManager;
import com.sun.javafx.css.StyleMap;
import javafx.css.converter.FontConverter;
import com.sun.javafx.util.Logging;
import com.sun.javafx.util.Utils;
import com.sun.javafx.logging.PlatformLogger;
import com.sun.javafx.logging.PlatformLogger.Level;
import static com.sun.javafx.css.CalculatedValue.*;
/**
* The StyleHelper is a helper class used for applying CSS information to Nodes.
*/
final class CssStyleHelper {
private static final PlatformLogger LOGGER = com.sun.javafx.util.Logging.getCSSLogger();
private CssStyleHelper() {
this.triggerStates = new PseudoClassState();
}
/**
* Creates a new StyleHelper.
*/
static CssStyleHelper createStyleHelper(final Node node) {
// need to know how far we are to root in order to init arrays.
// TODO: should we hang onto depth to avoid this nonsense later?
// TODO: is there some other way of knowing how far from the root a node is?
Styleable parent = node;
int depth = 0;
while(parent != null) {
depth++;
parent = parent.getStyleableParent();
}
// The List should only contain entries for those
// pseudo-class states that have styles. The StyleHelper's
// pseudoclassStateMask is a bitmask of those pseudoclasses that
// appear in the node's StyleHelper's smap. This list of
// pseudo-class masks is held by the StyleCacheKey. When a node is
// styled, its pseudoclasses and the pseudoclasses of its parents
// are gotten. By comparing the actual pseudo-class state to the
// pseudo-class states that apply, a CacheEntry can be created or
// fetched using only those pseudoclasses that matter.
final PseudoClassState[] triggerStates = new PseudoClassState[depth];
final StyleMap styleMap =
StyleManager.getInstance().findMatchingStyles(node, node.getSubScene(), triggerStates);
//
// reuse the existing styleHelper if possible.
//
if ( canReuseStyleHelper(node, styleMap) ) {
//
// RT-33080
//
// If we're reusing a style helper, clear the fontSizeCache in case either this node or some parent
// node has changed font from a user calling setFont.
//
// It may be the case that the node's font has changed from a call to setFont, which will
// trigger a REAPPLY. If the REAPPLY comes because of a change in font, then the fontSizeCache
// needs to be invalidated (cleared) so that new values will be looked up for all transition states.
//
if (node.styleHelper.cacheContainer != null && node.styleHelper.isUserSetFont(node)) {
node.styleHelper.cacheContainer.fontSizeCache.clear();
}
node.styleHelper.cacheContainer.forceSlowpath = true;
node.styleHelper.triggerStates.addAll(triggerStates[0]);
updateParentTriggerStates(node, depth, triggerStates);
return node.styleHelper;
}
if (styleMap == null || styleMap.isEmpty()) {
boolean mightInherit = false;
final List> props = node.getCssMetaData();
final int pMax = props != null ? props.size() : 0;
for (int p=0; p prop = props.get(p);
if (prop.isInherits()) {
mightInherit = true;
break;
}
}
if (mightInherit == false) {
// If this node had a style helper, then reset properties to their initial value
// since the node won't have a style helper after this call
if (node.styleHelper != null) {
node.styleHelper.resetToInitialValues(node);
}
//
// This node didn't have a StyleHelper before and it doesn't need one now since there are
// no styles in the StyleMap and no inherited styles.
return null;
}
}
final CssStyleHelper helper = new CssStyleHelper();
helper.triggerStates.addAll(triggerStates[0]);
updateParentTriggerStates(node, depth, triggerStates);
helper.cacheContainer = new CacheContainer(node, styleMap, depth);
helper.firstStyleableAncestor = findFirstStyleableAncestor(node);
// If this node had a style helper, then reset properties to their initial value
// since the style map might now be different
if (node.styleHelper != null) {
node.styleHelper.resetToInitialValues(node);
}
return helper;
}
private static void updateParentTriggerStates(Styleable styleable, int depth, PseudoClassState[] triggerStates) {
// make sure parent's transition states include the pseudo-classes
// found when matching selectors
Styleable parent = styleable.getStyleableParent();
for(int n=1; n 0) {
// Create a StyleHelper for the parent, if necessary.
// TODO : check why calling createStyleHelper(parentNode) does not work here?
if (parentNode.styleHelper == null) {
parentNode.styleHelper = new CssStyleHelper();
parentNode.styleHelper.firstStyleableAncestor = findFirstStyleableAncestor(parentNode) ;
}
parentNode.styleHelper.triggerStates.addAll(triggerState);
}
parent=parent.getStyleableParent();
}
}
//
// return true if the fontStyleableProperty's origin is USER
//
private boolean isUserSetFont(Styleable node) {
if (node == null) return false; // should never happen, but just to be safe...
CssMetaData fontCssMetaData = cacheContainer != null ? cacheContainer.fontProp : null;
if (fontCssMetaData != null) {
StyleableProperty fontStyleableProperty = fontCssMetaData != null ? fontCssMetaData.getStyleableProperty(node) : null;
if (fontStyleableProperty != null && fontStyleableProperty.getStyleOrigin() == StyleOrigin.USER) return true;
}
Styleable styleableParent = firstStyleableAncestor;
CssStyleHelper parentStyleHelper = getStyleHelper(firstStyleableAncestor);
if (parentStyleHelper != null) {
return parentStyleHelper.isUserSetFont(styleableParent);
} else {
return false;
}
}
private static CssStyleHelper getStyleHelper(Node n) {
return (n != null)? n.styleHelper : null;
}
private static Node findFirstStyleableAncestor(Styleable st) {
Node ancestor = null;
Styleable parent = st.getStyleableParent();
while (parent != null) {
if (parent instanceof Node) {
if (((Node) parent).styleHelper != null) {
ancestor = (Node) parent;
break;
}
}
parent = parent.getStyleableParent();
}
return ancestor;
}
//
// return the value of the property
//
private static boolean isTrue(WritableValue booleanProperty) {
return booleanProperty != null && booleanProperty.getValue();
}
//
// set the value of the property to true
//
private static void setTrue(WritableValue booleanProperty) {
if (booleanProperty != null) booleanProperty.setValue(true);
}
//
// return true if the Node's current styleHelper can be reused.
//
private static boolean canReuseStyleHelper(final Node node, final StyleMap styleMap) {
// Obviously, we cannot reuse the node's style helper if it doesn't have one.
if (node == null || node.styleHelper == null) {
return false;
}
// If we have a styleHelper but the new styleMap is null, then we don't need a styleHelper at all
if (styleMap == null) {
return false;
}
StyleMap currentMap = node.styleHelper.getStyleMap(node);
// We cannot reuse the style helper if the styleMap is not the same instance as the current one
// Note: check instance equality!
if (currentMap != styleMap) {
return false;
}
//update ancestor since this node may have changed positions in the scene graph (JDK-8237469)
node.styleHelper.firstStyleableAncestor = findFirstStyleableAncestor(node);
// If the style maps are the same instance, we can re-use the current styleHelper if the cacheContainer is null.
// Under this condition, there are no styles for this node _and_ no styles inherit.
if (node.styleHelper.cacheContainer == null) {
return true;
}
//
// The current map might be the same, but one of the node's parent's maps might have changed which
// might cause some calculated values to change. To see if we can re-use the style-helper, we need to
// check if the StyleMap id's have changed, which we can do by inspecting the cacheContainer's styleCacheKey
// since it is made up of the current set of StyleMap ids.
//
Styleable parent = node.getStyleableParent();
// if the node's parent is null and the style maps are the same, then we can certainly reuse the style-helper
if (parent == null) {
return true;
}
CssStyleHelper parentHelper = getStyleHelper(node.styleHelper.firstStyleableAncestor);
if (parentHelper != null && parentHelper.cacheContainer != null) {
int[] parentIds = parentHelper.cacheContainer.styleCacheKey.getStyleMapIds();
int[] nodeIds = node.styleHelper.cacheContainer.styleCacheKey.getStyleMapIds();
if (parentIds.length == nodeIds.length - 1) {
boolean isSame = true;
// check that all of the style map ids are the same.
for (int i = 0; i < parentIds.length; i++) {
if (nodeIds[i + 1] != parentIds[i]) {
isSame = false;
break;
}
}
return isSame;
}
}
return false;
}
/* This is the first Styleable parent (of Node this StyleHelper belongs to)
* having a valid StyleHelper */
private Node firstStyleableAncestor;
private CacheContainer cacheContainer;
private final static class CacheContainer {
// Set internal internalState structures
private CacheContainer(
Node node,
final StyleMap styleMap,
int depth) {
int ctr = 0;
int[] smapIds = new int[depth];
smapIds[ctr++] = this.smapId = styleMap.getId();
//
// Create a set of StyleMap id's from the parent's smapIds.
// The resulting smapIds array may have less than depth elements.
// If a parent doesn't have a styleHelper or the styleHelper's
// internal state is null, then that parent doesn't contribute
// to the selection of a style. Any Node that has the same
// set of smapId's can potentially share previously calculated
// values.
//
Styleable parent = node.getStyleableParent();
for(int d=1; d styleableFontProperty = null;
final List> props = node.getCssMetaData();
final int pMax = props != null ? props.size() : 0;
for (int p=0; p prop = props.get(p);
if ("-fx-font".equals(prop.getProperty())) {
// unchecked!
styleableFontProperty = (CssMetaData) prop;
break;
}
}
this.fontProp = styleableFontProperty;
this.fontSizeCache = new HashMap<>();
this.cssSetProperties = new HashMap<>();
}
private StyleMap getStyleMap(Styleable styleable) {
if (styleable != null) {
SubScene subScene = (styleable instanceof Node) ? ((Node) styleable).getSubScene() : null;
return StyleManager.getInstance().getStyleMap(styleable, subScene, smapId);
} else {
return StyleMap.EMPTY_MAP;
}
}
// This is the key we use to find the shared cache
private final StyleCache.Key styleCacheKey;
// If the node has a fontProperty, we hang onto the CssMetaData for it
// so we can get at it later.
// TBD - why not the fontProperty itself?
private final CssMetaData fontProp;
// The id of StyleMap that contains the styles that apply to this node
private final int smapId;
// All nodes with the same set of styles share the same cache of
// calculated values. But one node might have a different font-size
// than another so the values are stored in cache by font-size.
// This map associates a style cache entry with the font to use when
// getting a value from or putting a value into cache.
private final Map fontSizeCache;
// Any properties that have been set by this style helper are tracked
// here so the property can be reset without expanding properties that
// were not set by css.
private final Map cssSetProperties;
private boolean forceSlowpath = false;
}
private void resetToInitialValues(final Styleable styleable) {
if (cacheContainer == null ||
cacheContainer.cssSetProperties == null ||
cacheContainer.cssSetProperties.isEmpty()) return;
// RT-31714 - make a copy of the entry set and clear the cssSetProperties immediately.
Set> entrySet = new HashSet<>(cacheContainer.cssSetProperties.entrySet());
cacheContainer.cssSetProperties.clear();
for (Entry resetValues : entrySet) {
final CssMetaData metaData = resetValues.getKey();
final StyleableProperty styleableProperty = metaData.getStyleableProperty(styleable);
final StyleOrigin styleOrigin = styleableProperty.getStyleOrigin();
if (styleOrigin != null && styleOrigin != StyleOrigin.USER) {
final CalculatedValue calculatedValue = resetValues.getValue();
styleableProperty.applyStyle(calculatedValue.getOrigin(), calculatedValue.getValue());
}
}
}
private StyleMap getStyleMap(Styleable styleable) {
if (cacheContainer == null || styleable == null) return null;
return cacheContainer.getStyleMap(styleable);
}
/**
* A Set of all the pseudo-class states which, if they change, need to
* cause the Node to be set to UPDATE its CSS styles on the next pulse.
* For example, your stylesheet might have:
*
* In this case, the first 2 rules apply to the Button itself, but the
* second two rules apply to the label within a Button. When the hover
* changes on the Button, however, we must mark the Button as needing
* an UPDATE. StyleHelper though only contains styles for the first two
* rules for Button. The pseudoclassStateMask would in this case have
* only a single bit set for "hover". In this way the StyleHelper associated
* with the Button would know whether a change to "hover" requires the
* button and all children to be update. Other pseudo-class state changes
* that are not in this hash set are ignored.
* *
* Called "triggerStates" since they would trigger a CSS update.
*/
private PseudoClassState triggerStates = new PseudoClassState();
boolean pseudoClassStateChanged(PseudoClass pseudoClass) {
return triggerStates.contains(pseudoClass);
}
/**
* Dynamic pseudo-class state of the node and its parents.
* Only valid during a pulse.
*
* The StyleCacheEntry to choose depends on the Node's pseudo-class state
* and the pseudo-class state of its parents. Without the parent
* pseudo-class state, the fact that the the node in this pseudo-class state
* matched foo:blah bar { } is lost.
*/
// TODO: this should work on Styleable, not Node
private Set[] getTransitionStates(final Node node) {
// if cacheContainer is null, then CSS just doesn't apply to this node
if (cacheContainer == null) return null;
int depth = 0;
Node parent = node;
while (parent != null) {
depth += 1;
parent = parent.getParent();
}
//
// StyleHelper#triggerStates is the set of pseudo-classes that appear
// in the style maps of this StyleHelper. Calculated values are
// cached by pseudo-class state, but only the pseudo-class states
// that mater are used in the search. So we take the transition states
// and intersect them with triggerStates to remove the
// transition states that don't matter when it comes to matching states
// on a selector. For example if the style map contains only
// .foo:hover { -fx-fill: red; } then only the hover state matters
// but the transtion state could be [hover, focused]
//
final Set[] retainedStates = new PseudoClassState[depth];
//
// Note Well: The array runs from leaf to root. That is,
// retainedStates[0] is the pseudo-class state for node and
// retainedStates[1..(states.length-1)] are the retainedStates for the
// node's parents.
//
int count = 0;
parent = node;
while (parent != null) { // This loop traverses through all ancestors till root
final CssStyleHelper helper = (parent instanceof Node) ? parent.styleHelper : null;
if (helper != null) {
final Set pseudoClassState = parent.pseudoClassStates;
retainedStates[count] = new PseudoClassState();
retainedStates[count].addAll(pseudoClassState);
// retainAll method takes the intersection of pseudoClassState and helper.triggerStates
retainedStates[count].retainAll(helper.triggerStates);
count += 1;
}
parent = parent.getParent();
}
final Set[] transitionStates = new PseudoClassState[count];
System.arraycopy(retainedStates, 0, transitionStates, 0, count);
return transitionStates;
}
/**
* Called by the Node whenever it has transitioned from one set of
* pseudo-class states to another. This function will then lookup the
* new values for each of the styleable variables on the Node, and
* then either set the value directly or start an animation based on
* how things are specified in the CSS file. Currently animation support
* is disabled until the new parser comes online with support for
* animations and that support is detectable via the API.
*/
void transitionToState(final Node node) {
if (cacheContainer == null) {
return;
}
//
// If styleMap is null, then StyleManager has blown it away and we need to reapply CSS.
//
final StyleMap styleMap = getStyleMap(node);
if (styleMap == null) {
cacheContainer = null;
node.reapplyCSS();
return;
}
// if the style-map is empty, then we are only looking for inherited styles.
final boolean inheritOnly = styleMap.isEmpty();
//
// Styles that need lookup can be cached provided none of the styles
// are from Node.style.
//
final StyleCache sharedCache = StyleManager.getInstance().getSharedCache(node, node.getSubScene(), cacheContainer.styleCacheKey);
if (sharedCache == null) {
// Shared cache was blown away by StyleManager.
// Therefore, this CssStyleHelper is no good.
cacheContainer = null;
node.reapplyCSS();
return;
}
final Set[] transitionStates = getTransitionStates(node);
final StyleCacheEntry.Key fontCacheKey = new StyleCacheEntry.Key(transitionStates, Font.getDefault());
CalculatedValue cachedFont = cacheContainer.fontSizeCache.get(fontCacheKey);
if (cachedFont == null) {
cachedFont = lookupFont(node, "-fx-font", styleMap, cachedFont);
if (cachedFont == SKIP) cachedFont = getCachedFont(node.getStyleableParent());
if (cachedFont == null) cachedFont = new CalculatedValue(Font.getDefault(), null, false);
cacheContainer.fontSizeCache.put(fontCacheKey,cachedFont);
}
final Font fontForRelativeSizes = (Font)cachedFont.getValue();
final StyleCacheEntry.Key cacheEntryKey = new StyleCacheEntry.Key(transitionStates, fontForRelativeSizes);
StyleCacheEntry cacheEntry = sharedCache.getStyleCacheEntry(cacheEntryKey);
// if the cacheEntry already exists, take the fastpath
final boolean fastpath = cacheEntry != null;
if (cacheEntry == null) {
cacheEntry = new StyleCacheEntry();
sharedCache.addStyleCacheEntry(cacheEntryKey, cacheEntry);
}
final List> styleables = node.getCssMetaData();
// Used in the for loop below, and a convenient place to stop when debugging.
final int max = styleables.size();
final boolean isForceSlowpath = cacheContainer.forceSlowpath;
cacheContainer.forceSlowpath = false;
// For each property that is settable, we need to do a lookup and
// transition to that value.
for(int n=0; n cssMetaData =
(CssMetaData)styleables.get(n);
// Don't bother looking up styles that don't inherit.
if (inheritOnly && cssMetaData.isInherits() == false) {
continue;
}
// Skip the lookup if we know there isn't a chance for this property
// to be set (usually due to a "bind").
if (!cssMetaData.isSettable(node)) continue;
final String property = cssMetaData.getProperty();
CalculatedValue calculatedValue = cacheEntry.get(property);
// If there is no calculatedValue and we're on the fast path,
// take the slow path if cssFlags is REAPPLY (RT-31691)
final boolean forceSlowpath =
fastpath && calculatedValue == null && isForceSlowpath;
final boolean addToCache =
(!fastpath && calculatedValue == null) || forceSlowpath;
if (fastpath && !forceSlowpath) {
// If the cache contains SKIP, then there was an
// exception thrown from applyStyle
if (calculatedValue == SKIP) {
continue;
}
} else if (calculatedValue == null) {
// slowpath!
calculatedValue = lookup(node, cssMetaData, styleMap, transitionStates[0],
node, cachedFont);
// lookup is not supposed to return null.
if (calculatedValue == null) {
assert false : "lookup returned null for " + property;
continue;
}
}
// StyleableProperty#applyStyle might throw an exception and it is called
// from two places in this try block.
try {
//
// RT-19089
// If the current value of the property was set by CSS
// and there is no style for the property, then reset this
// property to its initial value. If it was not set by CSS
// then leave the property alone.
//
if (calculatedValue == null || calculatedValue == SKIP) {
// cssSetProperties keeps track of the StyleableProperty's that were set by CSS in the previous state.
// If this property is not in cssSetProperties map, then the property was not set in the previous state.
// This accomplishes two things. First, it lets us know if the property was set in the previous state
// so it can be reset in this state if there is no value for it. Second, it calling
// CssMetaData#getStyleableProperty which is rather expensive as it may cause expansion of lazy
// properties.
CalculatedValue initialValue = cacheContainer.cssSetProperties.get(cssMetaData);
// if the current value was set by CSS and there
// is no calculated value for the property, then
// there was no style for the property in the current
// state, so reset the property to its initial value.
if (initialValue != null) {
StyleableProperty styleableProperty = cssMetaData.getStyleableProperty(node);
if (styleableProperty.getStyleOrigin() != StyleOrigin.USER) {
styleableProperty.applyStyle(initialValue.getOrigin(), initialValue.getValue());
}
}
continue;
}
if (addToCache) {
// If we're not on the fastpath, then add the calculated
// value to cache.
cacheEntry.put(property, calculatedValue);
}
StyleableProperty styleableProperty = cssMetaData.getStyleableProperty(node);
// need to know who set the current value - CSS, the user, or init
final StyleOrigin originOfCurrentValue = styleableProperty.getStyleOrigin();
// RT-10522:
// If the user set the property and there is a style and
// the style came from the user agent stylesheet, then
// skip the value. A style from a user agent stylesheet should
// not override the user set style.
//
final StyleOrigin originOfCalculatedValue = calculatedValue.getOrigin();
// A calculated value should never have a null style origin since that would
// imply the style didn't come from a stylesheet or in-line style.
if (originOfCalculatedValue == null) {
assert false : styleableProperty.toString();
continue;
}
if (originOfCurrentValue == StyleOrigin.USER) {
if (originOfCalculatedValue == StyleOrigin.USER_AGENT) {
continue;
}
}
final Object value = calculatedValue.getValue();
final Object currentValue = styleableProperty.getValue();
// RT-21185: Only apply the style if something has changed.
if ((originOfCurrentValue != originOfCalculatedValue)
|| (currentValue != null
? currentValue.equals(value) == false
: value != null)) {
if (LOGGER.isLoggable(Level.FINER)) {
LOGGER.finer(property + ", call applyStyle: " + styleableProperty + ", value =" +
String.valueOf(value) + ", originOfCalculatedValue=" + originOfCalculatedValue);
}
styleableProperty.applyStyle(originOfCalculatedValue, value);
if (cacheContainer.cssSetProperties.containsKey(cssMetaData) == false) {
// track this property
CalculatedValue initialValue = new CalculatedValue(currentValue, originOfCurrentValue, false);
cacheContainer.cssSetProperties.put(cssMetaData, initialValue);
}
}
} catch (Exception e) {
StyleableProperty styleableProperty = cssMetaData.getStyleableProperty(node);
final String msg = String.format("Failed to set css [%s] on [%s] due to '%s'\n",
cssMetaData.getProperty(), styleableProperty, e.getMessage());
List errors = null;
if ((errors = StyleManager.getErrors()) != null) {
final CssParser.ParseError error = new CssParser.ParseError.PropertySetError(cssMetaData, node, msg);
errors.add(error);
}
PlatformLogger logger = Logging.getCSSLogger();
if (logger.isLoggable(Level.WARNING)) {
logger.warning(msg);
}
// RT-27155: if setting value raises exception, reset value
// the value to initial and thereafter skip setting the property
cacheEntry.put(property, SKIP);
CalculatedValue cachedValue = null;
if (cacheContainer != null && cacheContainer.cssSetProperties != null) {
cachedValue = cacheContainer.cssSetProperties.get(cssMetaData);
}
Object value = (cachedValue != null) ? cachedValue.getValue() : cssMetaData.getInitialValue(node);
StyleOrigin origin = (cachedValue != null) ? cachedValue.getOrigin() : null;
try {
styleableProperty.applyStyle(origin, value);
} catch (Exception ebad) {
// This would be bad.
if (logger.isLoggable(Level.SEVERE)) {
logger.severe(String.format("Could not reset [%s] on [%s] due to %s\n" ,
cssMetaData.getProperty(), styleableProperty, e.getMessage()));
}
}
}
}
}
/**
* Gets the CSS CascadingStyle for the property of this node in these pseudo-class
* states. A null style may be returned if there is no style information
* for this combination of input parameters.
*
*
* @param styleable
* @param property
* @param styleMap
* @param states @return
* */
private CascadingStyle getStyle(final Styleable styleable, final String property, final StyleMap styleMap, final Set states){
if (styleMap == null || styleMap.isEmpty()) return null;
final Map> cascadingStyleMap = styleMap.getCascadingStyles();
if (cascadingStyleMap == null || cascadingStyleMap.isEmpty()) return null;
// Get all of the Styles which may apply to this particular property
List styles = cascadingStyleMap.get(property);
// If there are no styles for this property then we can just bail
if ((styles == null) || styles.isEmpty()) return null;
// Go looking for the style. We do this by visiting each CascadingStyle in
// order finding the first that matches the current node & set of
// pseudo-class states. We use an iteration style that avoids creating
// garbage iterators (and wish javac did it for us...)
CascadingStyle style = null;
final int max = (styles == null) ? 0 : styles.size();
for (int i=0; i subs = null;
StyleOrigin origin = null;
boolean isRelative = false;
for (int i=0; i();
}
subs.put(subkey, constituent.getValue());
// origin of this style is the most specific
if ((origin != null && constituent.getOrigin() != null)
? origin.compareTo(constituent.getOrigin()) < 0
: constituent.getOrigin() != null) {
origin = constituent.getOrigin();
}
// if the constiuent uses relative sizes, then
// isRelative is true;
isRelative = isRelative || constituent.isRelative();
}
}
// If there are no subkeys which apply...
if (subs == null || subs.isEmpty()) {
return handleNoStyleFound(styleable, cssMetaData,
styleMap, states, originatingStyleable, cachedFont);
}
try {
final StyleConverter keyType = cssMetaData.getConverter();
Object ret = keyType.convert(subs);
return new CalculatedValue(ret, origin, isRelative);
} catch (ClassCastException cce) {
final String msg = formatExceptionMessage(styleable, cssMetaData, null, cce);
List errors = null;
if ((errors = StyleManager.getErrors()) != null) {
final CssParser.ParseError error = new CssParser.ParseError.PropertySetError(cssMetaData, styleable, msg);
errors.add(error);
}
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning(msg);
LOGGER.fine("caught: ", cce);
LOGGER.fine("styleable = " + cssMetaData);
LOGGER.fine("node = " + styleable.toString());
}
return SKIP;
}
}
} else { // style != null
// RT-10522:
// If the user set the property and there is a style and
// the style came from the user agent stylesheet, then
// skip the value. A style from a user agent stylesheet should
// not override the user set style.
if (style.getOrigin() == StyleOrigin.USER_AGENT) {
StyleableProperty styleableProperty = cssMetaData.getStyleableProperty(originatingStyleable);
// if styleableProperty is null, then we're dealing with a sub-property.
if (styleableProperty != null && styleableProperty.getStyleOrigin() == StyleOrigin.USER) {
return SKIP;
}
}
// If there was a style found, then we want to check whether the
// value was "inherit". If so, then we will simply inherit.
final ParsedValue cssValue = style.getParsedValue();
if (cssValue != null && "inherit".equals(cssValue.getValue())) {
style = getInheritedStyle(styleable, property);
if (style == null) return SKIP;
}
}
// System.out.println("lookup " + property +
// ", selector = \'" + style.selector.toString() + "\'" +
// ", node = " + node.toString());
return calculateValue(style, styleable, cssMetaData, styleMap, states,
originatingStyleable, cachedFont);
}
/**
* Called when there is no style found.
*/
private CalculatedValue handleNoStyleFound(final Styleable styleable,
final CssMetaData cssMetaData,
final StyleMap styleMap, Set pseudoClassStates, Styleable originatingStyleable,
final CalculatedValue cachedFont) {
if (cssMetaData.isInherits()) {
StyleableProperty styleableProperty = cssMetaData.getStyleableProperty(styleable);
StyleOrigin origin = styleableProperty != null ? styleableProperty.getStyleOrigin() : null;
// RT-16308: if there is no matching style and the user set
// the property, do not look for inherited styles.
if (origin == StyleOrigin.USER) {
return SKIP;
}
CascadingStyle style = getInheritedStyle(styleable, cssMetaData.getProperty());
if (style == null) return SKIP;
CalculatedValue cv =
calculateValue(style, styleable, cssMetaData,
styleMap, pseudoClassStates, originatingStyleable,
cachedFont);
return cv;
} else {
// Not inherited. There is no style
return SKIP;
}
}
/**
* Called when we must getInheritedStyle a value from a parent node in the scenegraph.
*/
private CascadingStyle getInheritedStyle(
final Styleable styleable,
final String property) {
Styleable parent = ((Node)styleable).styleHelper.firstStyleableAncestor;
CssStyleHelper parentStyleHelper = getStyleHelper((Node) parent);
if (parent != null && parentStyleHelper != null) {
StyleMap parentStyleMap = parentStyleHelper.getStyleMap(parent);
Set transitionStates = ((Node)parent).pseudoClassStates;
CascadingStyle cascadingStyle = parentStyleHelper.getStyle(parent, property, parentStyleMap, transitionStates);
if (cascadingStyle != null) {
final ParsedValue cssValue = cascadingStyle.getParsedValue();
if ("inherit".equals(cssValue.getValue())) {
return getInheritedStyle(parent, property);
}
return cascadingStyle;
}
}
return null;
}
// helps with self-documenting the code
private static final Set NULL_PSEUDO_CLASS_STATE = null;
/**
* Find the property among the styles that pertain to the Node
*/
private CascadingStyle resolveRef(final Styleable styleable, final String property, final StyleMap styleMap, final Set states) {
final CascadingStyle style = getStyle(styleable, property, styleMap, states);
if (style != null) {
return style;
} else {
// if style is null, it may be because there isn't a style for this
// node in this state, or we may need to look up the parent chain
if (states != null && states.size() > 0) {
// if states > 0, then we need to check this node again,
// but without any states.
return resolveRef(styleable,property, styleMap, NULL_PSEUDO_CLASS_STATE);
} else {
// TODO: This block was copied from inherit. Both should use same code somehow.
Styleable styleableParent = ((Node)styleable).styleHelper.firstStyleableAncestor;
CssStyleHelper parentStyleHelper = getStyleHelper((Node) styleableParent);
if (styleableParent == null || parentStyleHelper == null) {
return null;
}
StyleMap parentStyleMap = parentStyleHelper.getStyleMap(styleableParent);
Set styleableParentPseudoClassStates =
styleableParent instanceof Node
? ((Node)styleableParent).pseudoClassStates
: styleable.getPseudoClassStates();
return parentStyleHelper.resolveRef(styleableParent, property,
parentStyleMap, styleableParentPseudoClassStates);
}
}
}
// to resolve a lookup, we just need to find the parsed value.
private ParsedValue resolveLookups(
final Styleable styleable,
final ParsedValue parsedValue,
final StyleMap styleMap, Set states,
final ObjectProperty whence,
Set resolves) {
//
// either the value itself is a lookup, or the value contain a lookup
//
if (parsedValue.isLookup()) {
// The value we're looking for should be a Paint, one of the
// containers for linear, radial or ladder, or a derived color.
final Object val = parsedValue.getValue();
if (val instanceof String) {
final String sval = ((String) val).toLowerCase(Locale.ROOT);
CascadingStyle resolved =
resolveRef(styleable, sval, styleMap, states);
if (resolved != null) {
if (resolves.contains(resolved.getParsedValue())) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning("Loop detected in " + resolved.getRule().toString() + " while resolving '" + sval + "'");
}
throw new IllegalArgumentException("Loop detected in " + resolved.getRule().toString() + " while resolving '" + sval + "'");
} else {
resolves.add(parsedValue);
}
// The origin of this parsed value is the greatest of
// any of the resolved reference. If a resolved reference
// comes from an inline style, for example, then the value
// calculated from the resolved lookup should have inline
// as its origin. Otherwise, an inline style could be
// stored in shared cache.
final StyleOrigin wOrigin = whence.get();
final StyleOrigin rOrigin = resolved.getOrigin();
if (rOrigin != null && (wOrigin == null || wOrigin.compareTo(rOrigin) < 0)) {
whence.set(rOrigin);
}
// the resolved value may itself need to be resolved.
// For example, if the value "color" resolves to "base",
// then "base" will need to be resolved as well.
ParsedValue pv = resolveLookups(styleable, resolved.getParsedValue(), styleMap, states, whence, resolves);
if (resolves != null) {
resolves.remove(parsedValue);
}
return pv;
}
}
}
// If the value doesn't contain any values that need lookup, then bail
if (!parsedValue.isContainsLookups()) {
return parsedValue;
}
final Object val = parsedValue.getValue();
if (val instanceof ParsedValue[][]) {
// If ParsedValue is a layered sequence of values, resolve the lookups for each.
final ParsedValue[][] layers = (ParsedValue[][])val;
ParsedValue[][] resolved = new ParsedValue[layers.length][0];
for (int l=0; l states,
final Styleable originatingStyleable,
final CalculatedValue fontFromCacheEntry) {
final ParsedValue cssValue = style.getParsedValue();
if (cssValue != null && !("null".equals(cssValue.getValue()) || "none".equals(cssValue.getValue()))) {
ParsedValue resolved = null;
try {
ObjectProperty whence = new SimpleObjectProperty<>(style.getOrigin());
resolved = resolveLookups(styleable, cssValue, styleMap, states, whence, new HashSet<>());
final String property = cssMetaData.getProperty();
// The computed value
Object val = null;
boolean isFontProperty =
"-fx-font".equals(property) ||
"-fx-font-size".equals(property);
boolean isRelative = ParsedValueImpl.containsFontRelativeSize(resolved, isFontProperty);
//
// Avoid using a font calculated from a relative size
// to calculate a font with a relative size.
// For example:
// Assume the default font size is 13 and we have a style with
// -fx-font-size: 1.5em, then the cacheEntry font value will
// have a size of 13*1.5=19.5.
// Now, when converting that same font size again in response
// to looking up a value for -fx-font, we do not want to use
// 19.5 as the font for relative size conversion since this will
// yield a font 19.5*1.5=29.25 when really what we want is
// a font size of 19.5.
// In this situation, then, we use the font from the parent's
// cache entry.
Font fontForFontRelativeSizes = null;
if (isRelative && isFontProperty &&
(fontFromCacheEntry == null || fontFromCacheEntry.isRelative())) {
Styleable parent = styleable;
CalculatedValue childsCachedFont = fontFromCacheEntry;
do {
CalculatedValue parentsCachedFont = getCachedFont(parent.getStyleableParent());
if (parentsCachedFont != null) {
if (parentsCachedFont.isRelative()) {
//
// If the cached fonts are the same, then the cached font came from the same
// style and we need to keep looking. Otherwise, use the font we found.
//
if (childsCachedFont == null || parentsCachedFont.equals(childsCachedFont)) {
childsCachedFont = parentsCachedFont;
} else {
fontForFontRelativeSizes = (Font)parentsCachedFont.getValue();
}
} else {
// fontValue.isRelative() == false!
fontForFontRelativeSizes = (Font)parentsCachedFont.getValue();
}
}
} while(fontForFontRelativeSizes == null &&
(parent = parent.getStyleableParent()) != null);
}
// did we get a fontValue from the preceding block?
// if not, get it from our cacheEntry or choose the default
if (fontForFontRelativeSizes == null) {
if (fontFromCacheEntry != null && fontFromCacheEntry.isRelative() == false) {
fontForFontRelativeSizes = (Font)fontFromCacheEntry.getValue();
} else {
fontForFontRelativeSizes = Font.getDefault();
}
}
final StyleConverter cssMetaDataConverter = cssMetaData.getConverter();
// RT-37727 - handling of properties that are insets is wonky. If the property is -fx-inset, then
// there isn't an issue because the converter assigns the InsetsConverter to the ParsedValue.
// But -my-insets will parse as an array of numbers and the parser will assign the Size sequence
// converter to it. So, if the CssMetaData says it uses InsetsConverter, use the InsetsConverter
// and not the parser assigned converter.
if (cssMetaDataConverter == StyleConverter.getInsetsConverter()) {
if (resolved.getValue() instanceof ParsedValue) {
// If you give the parser "-my-insets: 5;" you end up with a ParsedValue, Number>
// and not a ParsedValue so here we wrap the value into an array
// to make the InsetsConverter happy.
resolved = new ParsedValueImpl(new ParsedValue[] {(ParsedValue)resolved.getValue()}, null, false);
}
val = cssMetaDataConverter.convert(resolved, fontForFontRelativeSizes);
}
else if (resolved.getConverter() != null)
val = resolved.convert(fontForFontRelativeSizes);
else
val = cssMetaData.getConverter().convert(resolved, fontForFontRelativeSizes);
final StyleOrigin origin = whence.get();
return new CalculatedValue(val, origin, isRelative);
} catch (ClassCastException cce) {
final String msg = formatUnresolvedLookupMessage(styleable, cssMetaData, style.getStyle(),resolved, cce);
List errors = null;
if ((errors = StyleManager.getErrors()) != null) {
final CssParser.ParseError error = new CssParser.ParseError.PropertySetError(cssMetaData, styleable, msg);
errors.add(error);
}
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning(msg);
LOGGER.fine("node = " + styleable.toString());
LOGGER.fine("cssMetaData = " + cssMetaData);
LOGGER.fine("styles = " + getMatchingStyles(styleable, cssMetaData));
}
return SKIP;
} catch (IllegalArgumentException iae) {
final String msg = formatExceptionMessage(styleable, cssMetaData, style.getStyle(), iae);
List errors = null;
if ((errors = StyleManager.getErrors()) != null) {
final CssParser.ParseError error = new CssParser.ParseError.PropertySetError(cssMetaData, styleable, msg);
errors.add(error);
}
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning(msg);
LOGGER.fine("caught: ", iae);
LOGGER.fine("styleable = " + cssMetaData);
LOGGER.fine("node = " + styleable.toString());
}
return SKIP;
} catch (NullPointerException npe) {
final String msg = formatExceptionMessage(styleable, cssMetaData, style.getStyle(), npe);
List errors = null;
if ((errors = StyleManager.getErrors()) != null) {
final CssParser.ParseError error = new CssParser.ParseError.PropertySetError(cssMetaData, styleable, msg);
errors.add(error);
}
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning(msg);
LOGGER.fine("caught: ", npe);
LOGGER.fine("styleable = " + cssMetaData);
LOGGER.fine("node = " + styleable.toString());
}
return SKIP;
}
}
// either cssValue was null or cssValue's value was "null" or "none"
return new CalculatedValue(null, style.getOrigin(), false);
}
private static final CssMetaData dummyFontProperty =
new FontCssMetaData("-fx-font", Font.getDefault()) {
@Override
public boolean isSettable(Node node) {
return true;
}
@Override
public StyleableProperty getStyleableProperty(Node node) {
return null;
}
};
private CalculatedValue getCachedFont(final Styleable styleable) {
if (styleable instanceof Node == false) return null;
CalculatedValue cachedFont = null;
Node parent = (Node)styleable;
final CssStyleHelper parentHelper = parent.styleHelper;
// if there is no parentHelper,
// or there is a parentHelper but no cacheContainer,
// then look to the next parent
if (parentHelper == null || parentHelper.cacheContainer == null) {
cachedFont = getCachedFont(parent.getStyleableParent());
// there is a parent helper and a cacheContainer,
} else {
CacheContainer parentCacheContainer = parentHelper.cacheContainer;
if ( parentCacheContainer != null
&& parentCacheContainer.fontSizeCache != null
&& parentCacheContainer.fontSizeCache.isEmpty() == false) {
Set[] transitionStates = parentHelper.getTransitionStates(parent);
StyleCacheEntry.Key parentCacheEntryKey = new StyleCacheEntry.Key(transitionStates, Font.getDefault());
cachedFont = parentCacheContainer.fontSizeCache.get(parentCacheEntryKey);
}
if (cachedFont == null) {
StyleMap smap = parentHelper.getStyleMap(parent);
cachedFont = parentHelper.lookupFont(parent, "-fx-font", smap, null);
}
}
return cachedFont != SKIP ? cachedFont : null;
}
/*package access for testing*/ FontPosture getFontPosture(Font font) {
if (font == null) return FontPosture.REGULAR;
String fontName = font.getName().toLowerCase(Locale.ROOT);
if (fontName.contains("italic")) {
return FontPosture.ITALIC;
}
return FontPosture.REGULAR;
}
/*package access for testing*/ FontWeight getFontWeight(Font font) {
if (font == null) return FontWeight.NORMAL;
String fontName = font.getName().toLowerCase(Locale.ROOT);
if (fontName.contains("bold")) {
if (fontName.contains("extra")) return FontWeight.EXTRA_BOLD;
if (fontName.contains("ultra")) return FontWeight.EXTRA_BOLD;
else if (fontName.contains("semi")) return FontWeight.SEMI_BOLD;
else if (fontName.contains("demi")) return FontWeight.SEMI_BOLD;
else return FontWeight.BOLD;
} else if (fontName.contains("light")) {
if (fontName.contains("extra")) return FontWeight.EXTRA_LIGHT;
if (fontName.contains("ultra")) return FontWeight.EXTRA_LIGHT;
else return FontWeight.LIGHT;
} else if (fontName.contains("black")) {
return FontWeight.BLACK;
} else if (fontName.contains("heavy")) {
return FontWeight.BLACK;
} else if (fontName.contains("medium")) {
return FontWeight.MEDIUM;
}
return FontWeight.NORMAL;
}
/*package access for testing*/ String getFontFamily(Font font) {
if (font == null) return Font.getDefault().getFamily();
return font.getFamily();
}
/*package access for testing*/ Font deriveFont(
Font font,
String fontFamily,
FontWeight fontWeight,
FontPosture fontPosture,
double fontSize) {
if (font != null && fontFamily == null) fontFamily = getFontFamily(font);
else if (fontFamily != null) fontFamily = Utils.stripQuotes(fontFamily);
if (font != null && fontWeight == null) fontWeight = getFontWeight(font);
if (font != null && fontPosture == null) fontPosture = getFontPosture(font);
if (font != null && fontSize <= 0) fontSize = font.getSize();
return Font.font(
fontFamily,
fontWeight,
fontPosture,
fontSize);
}
/**
* Look up a font property. This is handled separately from lookup since
* font is inherited and has sub-properties. One should expect that the
* text font for the following would be 16px Arial. The lookup method would
* give 16px system since it would look only for font-size,
* font-family, etc only if the lookup on font failed.
*
* Text text = new Text("Hello World");
* text.setStyle("-fx-font-size: 16px;");
* Group group = new Group();
* group.setStyle("-fx-font: 12px Arial;");
* group.getChildren().add(text);
*
*/
/*package access for testing*/ CalculatedValue lookupFont(
final Styleable styleable,
final String property,
final StyleMap styleMap,
final CalculatedValue cachedFont)
{
StyleOrigin origin = null;
// How far from this node did we travel to find a font shorthand?
// Don't look past this distance for other font properties.
int distance = 0;
// Did we find a style?
boolean foundStyle = false;
String family = null;
double size = -1;
FontWeight weight = null;
FontPosture posture = null;
CalculatedValue cvFont = cachedFont;
Set states = styleable instanceof Node ? ((Node)styleable).pseudoClassStates : styleable.getPseudoClassStates();
// RT-20145 - if looking for font size and the node has a font,
// use the font property's value if it was set by the user and
// there is not an inline or author style.
if (cacheContainer.fontProp != null) {
StyleableProperty styleableProp = cacheContainer.fontProp.getStyleableProperty(styleable);
StyleOrigin fpOrigin = styleableProp.getStyleOrigin();
Font font = styleableProp.getValue();
if (font == null) font = Font.getDefault();
if (fpOrigin == StyleOrigin.USER) {
origin = fpOrigin;
family = getFontFamily(font);
size = font.getSize();
weight = getFontWeight(font);
posture = getFontPosture(font);
cvFont = new CalculatedValue(font, fpOrigin, false);
}
}
CalculatedValue parentCachedFont = getCachedFont(styleable.getStyleableParent());
if (parentCachedFont == null) parentCachedFont = new CalculatedValue(Font.getDefault(), null, false);
//
// Look up the font- properties
//
CascadingStyle fontShorthand = getStyle(styleable, property, styleMap, states);
// don't look past current node for font shorthand if user set the font
if (fontShorthand == null && origin != StyleOrigin.USER) {
Styleable parent = styleable != null ? styleable.getStyleableParent() : null;
while (parent != null) { // This loop traverses through all ancestors till root
CssStyleHelper parentStyleHelper = parent instanceof Node ? ((Node)parent).styleHelper : null;
if (parentStyleHelper != null) {
distance += 1;
StyleMap parentStyleMap = parentStyleHelper.getStyleMap(parent);
Set transitionStates = ((Node)parent).pseudoClassStates;
CascadingStyle cascadingStyle = parentStyleHelper.getStyle(parent, property, parentStyleMap, transitionStates);
if (cascadingStyle != null) {
final ParsedValue cssValue = cascadingStyle.getParsedValue();
if ("inherit".equals(cssValue.getValue()) == false) {
fontShorthand = cascadingStyle;
break;
}
}
}
parent = parent.getStyleableParent();
}
}
if (fontShorthand != null) {
//
// If we don't have an existing font, or if the origin of the
// existing font is less than that of the shorthand, then
// take the shorthand. If the origins compare equals, then take
// the shorthand since the fontProp value will not have been
// updated yet.
//
if (origin == null || origin.compareTo(fontShorthand.getOrigin()) <= 0) {
final CalculatedValue cv =
calculateValue(fontShorthand, styleable, dummyFontProperty,
styleMap, states, styleable, parentCachedFont);
// cv could be SKIP
if (cv.getValue() instanceof Font) {
origin = cv.getOrigin();
Font font = (Font)cv.getValue();
family = getFontFamily(font);
size = font.getSize();
weight = getFontWeight(font);
posture = getFontPosture(font);
cvFont = cv;
foundStyle = true;
}
}
}
CascadingStyle fontSize = getStyle(styleable, property.concat("-size"), styleMap, states);
if (fontSize != null) {
// if we have a font shorthand and it is more specific than font-size, then don't use the font-size style
if (fontShorthand != null && fontShorthand.compareTo(fontSize) < 0) {
fontSize = null;
} else if (origin == StyleOrigin.USER) {
// If fontSize is an inline or author-stylesheet style, use it.
// Otherwise, fontSize is a user-agent stylesheet style and should not override the USER style.
if (StyleOrigin.USER.compareTo(fontSize.getOrigin()) > 0) {
fontSize = null;
}
}
} else if (origin != StyleOrigin.USER) {
//
// If we don't have a font-size, see if there is an inherited font-size.
// If lookupInheritedFontProperty returns other than null, then we know that font-size is closer (more specific)
// than the font shorthand
//
fontSize = lookupInheritedFontProperty(styleable, property.concat("-size"), styleMap, distance, fontShorthand);
}
if (fontSize != null) {
// The logic above ensures that, if fontSize is not null, then it is either
// 1) a style matching this node and is more specific than the font shorthand or
// 2) an inherited style that is more specific than the font shorthand
// and, therefore, we can use the fontSize style
final CalculatedValue cv =
calculateValue(fontSize, styleable, dummyFontProperty,
styleMap, states, styleable, parentCachedFont);
if (cv.getValue() instanceof Double) {
if (origin == null || origin.compareTo(fontSize.getOrigin()) <= 0) {
origin = cv.getOrigin();
}
size = (Double) cv.getValue();
if (cvFont != null) {
boolean isRelative = cvFont.isRelative() || cv.isRelative();
Font font = deriveFont((Font) cvFont.getValue(), family, weight, posture, size);
cvFont = new CalculatedValue(font, origin, isRelative);
} else {
boolean isRelative = cv.isRelative();
Font font = deriveFont(Font.getDefault(), family, weight, posture, size);
cvFont = new CalculatedValue(font, origin, isRelative);
}
foundStyle = true;
}
}
// if cachedFont is null, then we're in this method to look up a font for the CacheContainer's fontSizeCache
// and we only care about font-size or the size from font shorthand.
if (cachedFont == null) {
return (cvFont != null) ? cvFont : SKIP;
}
CascadingStyle fontWeight = getStyle(styleable, property.concat("-weight"), styleMap, states);
if (fontWeight != null) {
// if we have a font shorthand and it is more specific than font-weight, then don't use the font-weight style
if (fontShorthand != null && fontShorthand.compareTo(fontWeight) < 0) {
fontWeight = null;
}
} else if (origin != StyleOrigin.USER) {
//
// If we don't have a font-weight, see if there is an inherited font-weight.
// If lookupInheritedFontProperty returns other than null, then we know that font-weight is closer (more specific)
// than the font shorthand
//
fontWeight = lookupInheritedFontProperty(styleable, property.concat("-weight"), styleMap, distance, fontShorthand);
}
if (fontWeight != null) {
// The logic above ensures that, if fontWeight is not null, then it is either
// 1) a style matching this node and is more specific than the font shorthand or
// 2) an inherited style that is more specific than the font shorthand
// and, therefore, we can use the fontWeight style
final CalculatedValue cv =
calculateValue(fontWeight, styleable, dummyFontProperty,
styleMap, states, styleable, null);
if (cv.getValue() instanceof FontWeight) {
if (origin == null || origin.compareTo(fontWeight.getOrigin()) <= 0) {
origin = cv.getOrigin();
}
weight = (FontWeight)cv.getValue();
foundStyle = true;
}
}
CascadingStyle fontStyle = getStyle(styleable, property.concat("-style"), styleMap, states);
if (fontStyle != null) {
// if we have a font shorthand and it is more specific than font-style, then don't use the font-style style
if (fontShorthand != null && fontShorthand.compareTo(fontStyle) < 0) {
fontStyle = null;
}
} else if (origin != StyleOrigin.USER) {
//
// If we don't have a font-style, see if there is an inherited font-style.
// If lookupInheritedFontProperty returns other than null, then we know that font-style is closer (more specific)
// than the font shorthand
//
fontStyle = lookupInheritedFontProperty(styleable, property.concat("-style"), styleMap, distance, fontShorthand);
}
if (fontStyle != null) {
// The logic above ensures that, if fontStyle is not null, then it is either
// 1) a style matching this node and is more specific than the font shorthand or
// 2) an inherited style that is more specific than the font shorthand
// and, therefore, we can use the fontStyle style
final CalculatedValue cv =
calculateValue(fontStyle, styleable, dummyFontProperty,
styleMap, states, styleable, null);
if (cv.getValue() instanceof FontPosture) {
if (origin == null || origin.compareTo(fontStyle.getOrigin()) <= 0) {
origin = cv.getOrigin();
}
posture = (FontPosture)cv.getValue();
foundStyle = true;
}
}
CascadingStyle fontFamily = getStyle(styleable, property.concat("-family"), styleMap, states);
if (fontFamily != null) {
// if we have a font shorthand and it is more specific than font-family, then don't use the font-family style
if (fontShorthand != null && fontShorthand.compareTo(fontFamily) < 0) {
fontFamily = null;
}
} else if (origin != StyleOrigin.USER) {
//
// If we don't have a font-family, see if there is an inherited font-family.
// If lookupInheritedFontProperty returns other than null, then we know that font-family is closer (more specific)
// than the font shorthand
//
fontFamily = lookupInheritedFontProperty(styleable, property.concat("-family"), styleMap, distance, fontShorthand);
}
if (fontFamily != null) {
// The logic above ensures that, if fontFamily is not null, then it is either
// 1) a style matching this node and is more specific than the font shorthand or
// 2) an inherited style that is more specific than the font shorthand
// and, therefore, we can use the fontFamily style
final CalculatedValue cv =
calculateValue(fontFamily, styleable, dummyFontProperty,
styleMap, states, styleable, null);
if (cv.getValue() instanceof String) {
if (origin == null || origin.compareTo(fontFamily.getOrigin()) <= 0) {
origin = cv.getOrigin();
}
family = (String)cv.getValue();
foundStyle = true;
}
}
if (foundStyle) {
Font font = cvFont != null ? (Font)cvFont.getValue() : Font.getDefault();
Font derivedFont = deriveFont(font, family, weight, posture, size);
return new CalculatedValue(derivedFont,origin,false);
}
return SKIP;
}
private CascadingStyle lookupInheritedFontProperty(
final Styleable styleable,
final String property,
final StyleMap styleMap,
final int distance,
CascadingStyle fontShorthand) {
Styleable parent = styleable != null ? styleable.getStyleableParent() : null;
int nlooks = distance;
while (parent != null && nlooks > 0) { // This loop traverses through all ancestors till root
CssStyleHelper parentStyleHelper = parent instanceof Node ? ((Node)parent).styleHelper : null;
if (parentStyleHelper != null) {
nlooks -= 1;
StyleMap parentStyleMap = parentStyleHelper.getStyleMap((parent));
Set transitionStates = ((Node)parent).pseudoClassStates;
CascadingStyle cascadingStyle = parentStyleHelper.getStyle(parent, property, parentStyleMap, transitionStates);
if (cascadingStyle != null) {
// If we are closer to the node than the font shorthand, then font shorthand doesn't matter.
// If the font shorthand and this style are the same distance, then we need to compare.
if (fontShorthand != null && nlooks == 0) {
if (fontShorthand.compareTo(cascadingStyle) < 0) {
return null;
}
}
final ParsedValue cssValue = cascadingStyle.getParsedValue();
if ("inherit".equals(cssValue.getValue()) == false) {
return cascadingStyle;
}
}
}
parent = parent.getStyleableParent();
}
return null;
}
/**
* Called from Node NodeHelper.getMatchingStyles
* @param styleable
* @param styleableProperty
* @return
*/
static List
