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JDK 11 java.desktop.jmod - Desktop Module
JDK 11 java.desktop.jmod is the JMOD file for JDK 11 Desktop module.
JDK 11 Desktop module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.desktop.jmod.
JDK 11 Desktop module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Desktop module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.desktop.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ java/awt/ContainerOrderFocusTraversalPolicy.java
/* * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.awt; import java.util.List; import java.util.ArrayList; import sun.util.logging.PlatformLogger; /** * A FocusTraversalPolicy that determines traversal order based on the order * of child Components in a Container. From a particular focus cycle root, the * policy makes a pre-order traversal of the Component hierarchy, and traverses * a Container's children according to the ordering of the array returned by * {@code Container.getComponents()}. Portions of the hierarchy that are * not visible and displayable will not be searched. * <p> * By default, ContainerOrderFocusTraversalPolicy implicitly transfers focus * down-cycle. That is, during normal forward focus traversal, the Component * traversed after a focus cycle root will be the focus-cycle-root's default * Component to focus. This behavior can be disabled using the * {@code setImplicitDownCycleTraversal} method. * <p> * By default, methods of this class will return a Component only if it is * visible, displayable, enabled, and focusable. Subclasses can modify this * behavior by overriding the {@code accept} method. * <p> * This policy takes into account <a * href="doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus traversal * policy providers</a>. When searching for first/last/next/previous Component, * if a focus traversal policy provider is encountered, its focus traversal * policy is used to perform the search operation. * * @author David Mendenhall * * @see Container#getComponents * @since 1.4 */ public class ContainerOrderFocusTraversalPolicy extends FocusTraversalPolicy implements java.io.Serializable { private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.ContainerOrderFocusTraversalPolicy"); private final int FORWARD_TRAVERSAL = 0; private final int BACKWARD_TRAVERSAL = 1; /* * JDK 1.4 serialVersionUID */ private static final long serialVersionUID = 486933713763926351L; private boolean implicitDownCycleTraversal = true; /** * Used by getComponentAfter and getComponentBefore for efficiency. In * order to maintain compliance with the specification of * FocusTraversalPolicy, if traversal wraps, we should invoke * getFirstComponent or getLastComponent. These methods may be overriden in * subclasses to behave in a non-generic way. However, in the generic case, * these methods will simply return the first or last Components of the * sorted list, respectively. Since getComponentAfter and * getComponentBefore have already built the list before determining * that they need to invoke getFirstComponent or getLastComponent, the * list should be reused if possible. */ private transient Container cachedRoot; private transient List<Component> cachedCycle; /* * We suppose to use getFocusTraversalCycle & getComponentIndex methods in order * to divide the policy into two parts: * 1) Making the focus traversal cycle. * 2) Traversing the cycle. * The 1st point assumes producing a list of components representing the focus * traversal cycle. The two methods mentioned above should implement this logic. * The 2nd point assumes implementing the common concepts of operating on the * cycle: traversing back and forth, retrieving the initial/default/first/last * component. These concepts are described in the AWT Focus Spec and they are * applied to the FocusTraversalPolicy in general. * Thus, a descendant of this policy may wish to not reimplement the logic of * the 2nd point but just override the implementation of the 1st one. * A striking example of such a descendant is the javax.swing.SortingFocusTraversalPolicy. */ /*protected*/ private List<Component> getFocusTraversalCycle(Container aContainer) { List<Component> cycle = new ArrayList<Component>(); enumerateCycle(aContainer, cycle); return cycle; } /*protected*/ private int getComponentIndex(List<Component> cycle, Component aComponent) { return cycle.indexOf(aComponent); } private void enumerateCycle(Container container, List<Component> cycle) { if (!(container.isVisible() && container.isDisplayable())) { return; } cycle.add(container); Component[] components = container.getComponents(); for (int i = 0; i < components.length; i++) { Component comp = components[i]; if (comp instanceof Container) { Container cont = (Container)comp; if (!cont.isFocusCycleRoot() && !cont.isFocusTraversalPolicyProvider()) { enumerateCycle(cont, cycle); continue; } } cycle.add(comp); } } private Container getTopmostProvider(Container focusCycleRoot, Component aComponent) { Container aCont = aComponent.getParent(); Container ftp = null; while (aCont != focusCycleRoot && aCont != null) { if (aCont.isFocusTraversalPolicyProvider()) { ftp = aCont; } aCont = aCont.getParent(); } if (aCont == null) { return null; } return ftp; } /* * Checks if a new focus cycle takes place and returns a Component to traverse focus to. * @param comp a possible focus cycle root or policy provider * @param traversalDirection the direction of the traversal * @return a Component to traverse focus to if {@code comp} is a root or provider * and implicit down-cycle is set, otherwise {@code null} */ private Component getComponentDownCycle(Component comp, int traversalDirection) { Component retComp = null; if (comp instanceof Container) { Container cont = (Container)comp; if (cont.isFocusCycleRoot()) { if (getImplicitDownCycleTraversal()) { retComp = cont.getFocusTraversalPolicy().getDefaultComponent(cont); if (retComp != null && log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Transferred focus down-cycle to " + retComp + " in the focus cycle root " + cont); } } else { return null; } } else if (cont.isFocusTraversalPolicyProvider()) { retComp = (traversalDirection == FORWARD_TRAVERSAL ? cont.getFocusTraversalPolicy().getDefaultComponent(cont) : cont.getFocusTraversalPolicy().getLastComponent(cont)); if (retComp != null && log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Transferred focus to " + retComp + " in the FTP provider " + cont); } } } return retComp; } /** * Returns the Component that should receive the focus after aComponent. * aContainer must be a focus cycle root of aComponent or a focus traversal policy provider. * <p> * By default, ContainerOrderFocusTraversalPolicy implicitly transfers * focus down-cycle. That is, during normal forward focus traversal, the * Component traversed after a focus cycle root will be the focus-cycle- * root's default Component to focus. This behavior can be disabled using * the {@code setImplicitDownCycleTraversal} method. * <p> * If aContainer is <a href="doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus * traversal policy provider</a>, the focus is always transferred down-cycle. * * @param aContainer a focus cycle root of aComponent or a focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus after aComponent, or * null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentAfter(Container aContainer, Component aComponent) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Searching in " + aContainer + " for component after " + aComponent); } if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } synchronized(aContainer.getTreeLock()) { if (!(aContainer.isVisible() && aContainer.isDisplayable())) { return null; } // Before all the checks below we first see if it's an FTP provider or a focus cycle root. // If it's the case just go down cycle (if it's set to "implicit"). Component comp = getComponentDownCycle(aComponent, FORWARD_TRAVERSAL); // Check if aComponent is focus-cycle-root's default Component, i.e. // focus cycle root & focus-cycle-root's default Component is same. if (comp != null && comp != aComponent) { return comp; } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component afterComp = policy.getComponentAfter(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (afterComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + afterComp); } return afterComp; } aComponent = provider; } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getFirstComponent(aContainer); } for (index++; index < cycle.size(); index++) { comp = cycle.get(index); if (accept(comp)) { return comp; } else if ((comp = getComponentDownCycle(comp, FORWARD_TRAVERSAL)) != null) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getFirstComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } } return null; } /** * Returns the Component that should receive the focus before aComponent. * aContainer must be a focus cycle root of aComponent or a <a * href="doc-files/FocusSpec.html#FocusTraversalPolicyProviders">focus traversal policy * provider</a>. * * @param aContainer a focus cycle root of aComponent or focus traversal policy provider * @param aComponent a (possibly indirect) child of aContainer, or * aContainer itself * @return the Component that should receive the focus before aComponent, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is not a focus cycle * root of aComponent or focus traversal policy provider, or if either aContainer or * aComponent is null */ public Component getComponentBefore(Container aContainer, Component aComponent) { if (aContainer == null || aComponent == null) { throw new IllegalArgumentException("aContainer and aComponent cannot be null"); } if (!aContainer.isFocusTraversalPolicyProvider() && !aContainer.isFocusCycleRoot()) { throw new IllegalArgumentException("aContainer should be focus cycle root or focus traversal policy provider"); } else if (aContainer.isFocusCycleRoot() && !aComponent.isFocusCycleRoot(aContainer)) { throw new IllegalArgumentException("aContainer is not a focus cycle root of aComponent"); } synchronized(aContainer.getTreeLock()) { if (!(aContainer.isVisible() && aContainer.isDisplayable())) { return null; } // See if the component is inside of policy provider. Container provider = getTopmostProvider(aContainer, aComponent); if (provider != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Asking FTP " + provider + " for component after " + aComponent); } // FTP knows how to find component after the given. We don't. FocusTraversalPolicy policy = provider.getFocusTraversalPolicy(); Component beforeComp = policy.getComponentBefore(provider, aComponent); // Null result means that we overstepped the limit of the FTP's cycle. // In that case we must quit the cycle, otherwise return the component found. if (beforeComp != null) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### FTP returned " + beforeComp); } return beforeComp; } aComponent = provider; // If the provider is traversable it's returned. if (accept(aComponent)) { return aComponent; } } List<Component> cycle = getFocusTraversalCycle(aContainer); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle + ", component is " + aComponent); } int index = getComponentIndex(cycle, aComponent); if (index < 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Didn't find component " + aComponent + " in a cycle " + aContainer); } return getLastComponent(aContainer); } Component comp = null; Component tryComp = null; for (index--; index>=0; index--) { comp = cycle.get(index); if (comp != aContainer && (tryComp = getComponentDownCycle(comp, BACKWARD_TRAVERSAL)) != null) { return tryComp; } else if (accept(comp)) { return comp; } } if (aContainer.isFocusCycleRoot()) { this.cachedRoot = aContainer; this.cachedCycle = cycle; comp = getLastComponent(aContainer); this.cachedRoot = null; this.cachedCycle = null; return comp; } } return null; } /** * Returns the first Component in the traversal cycle. This method is used * to determine the next Component to focus when traversal wraps in the * forward direction. * * @param aContainer the focus cycle root or focus traversal policy provider whose first * Component is to be returned * @return the first Component in the traversal cycle of aContainer, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is null */ public Component getFirstComponent(Container aContainer) { List<Component> cycle; if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Getting first component in " + aContainer); } if (aContainer == null) { throw new IllegalArgumentException("aContainer cannot be null"); } synchronized(aContainer.getTreeLock()) { if (!(aContainer.isVisible() && aContainer.isDisplayable())) { return null; } if (this.cachedRoot == aContainer) { cycle = this.cachedCycle; } else { cycle = getFocusTraversalCycle(aContainer); } if (cycle.size() == 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is empty"); } return null; } if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle); } for (Component comp : cycle) { if (accept(comp)) { return comp; } else if (comp != aContainer && (comp = getComponentDownCycle(comp, FORWARD_TRAVERSAL)) != null) { return comp; } } } return null; } /** * Returns the last Component in the traversal cycle. This method is used * to determine the next Component to focus when traversal wraps in the * reverse direction. * * @param aContainer the focus cycle root or focus traversal policy provider whose last * Component is to be returned * @return the last Component in the traversal cycle of aContainer, * or null if no suitable Component can be found * @throws IllegalArgumentException if aContainer is null */ public Component getLastComponent(Container aContainer) { List<Component> cycle; if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Getting last component in " + aContainer); } if (aContainer == null) { throw new IllegalArgumentException("aContainer cannot be null"); } synchronized(aContainer.getTreeLock()) { if (!(aContainer.isVisible() && aContainer.isDisplayable())) { return null; } if (this.cachedRoot == aContainer) { cycle = this.cachedCycle; } else { cycle = getFocusTraversalCycle(aContainer); } if (cycle.size() == 0) { if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is empty"); } return null; } if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("### Cycle is " + cycle); } for (int i= cycle.size() - 1; i >= 0; i--) { Component comp = cycle.get(i); if (accept(comp)) { return comp; } else if (comp instanceof Container && comp != aContainer) { Container cont = (Container)comp; if (cont.isFocusTraversalPolicyProvider()) { Component retComp = cont.getFocusTraversalPolicy().getLastComponent(cont); if (retComp != null) { return retComp; } } } } } return null; } /** * Returns the default Component to focus. This Component will be the first * to receive focus when traversing down into a new focus traversal cycle * rooted at aContainer. The default implementation of this method * returns the same Component as {@code getFirstComponent}. * * @param aContainer the focus cycle root or focus traversal policy provider whose default * Component is to be returned * @return the default Component in the traversal cycle of aContainer, * or null if no suitable Component can be found * @see #getFirstComponent * @throws IllegalArgumentException if aContainer is null */ public Component getDefaultComponent(Container aContainer) { return getFirstComponent(aContainer); } /** * Sets whether this ContainerOrderFocusTraversalPolicy transfers focus * down-cycle implicitly. If {@code true}, during normal forward focus * traversal, the Component traversed after a focus cycle root will be the * focus-cycle-root's default Component to focus. If {@code false}, * the next Component in the focus traversal cycle rooted at the specified * focus cycle root will be traversed instead. The default value for this * property is {@code true}. * * @param implicitDownCycleTraversal whether this * ContainerOrderFocusTraversalPolicy transfers focus down-cycle * implicitly * @see #getImplicitDownCycleTraversal * @see #getFirstComponent */ public void setImplicitDownCycleTraversal(boolean implicitDownCycleTraversal) { this.implicitDownCycleTraversal = implicitDownCycleTraversal; } /** * Returns whether this ContainerOrderFocusTraversalPolicy transfers focus * down-cycle implicitly. If {@code true}, during normal forward focus * traversal, the Component traversed after a focus cycle root will be the * focus-cycle-root's default Component to focus. If {@code false}, * the next Component in the focus traversal cycle rooted at the specified * focus cycle root will be traversed instead. * * @return whether this ContainerOrderFocusTraversalPolicy transfers focus * down-cycle implicitly * @see #setImplicitDownCycleTraversal * @see #getFirstComponent */ public boolean getImplicitDownCycleTraversal() { return implicitDownCycleTraversal; } /** * Determines whether a Component is an acceptable choice as the new * focus owner. By default, this method will accept a Component if and * only if it is visible, displayable, enabled, and focusable. * * @param aComponent the Component whose fitness as a focus owner is to * be tested * @return {@code true} if aComponent is visible, displayable, * enabled, and focusable; {@code false} otherwise */ protected boolean accept(Component aComponent) { if (!aComponent.canBeFocusOwner()) { return false; } // Verify that the Component is recursively enabled. Disabling a // heavyweight Container disables its children, whereas disabling // a lightweight Container does not. if (!(aComponent instanceof Window)) { for (Container enableTest = aComponent.getParent(); enableTest != null; enableTest = enableTest.getParent()) { if (!(enableTest.isEnabled() || enableTest.isLightweight())) { return false; } if (enableTest instanceof Window) { break; } } } return true; } }
⏎ java/awt/ContainerOrderFocusTraversalPolicy.java
Or download all of them as a single archive file:
File name: java.desktop-11.0.1-src.zip File size: 7974380 bytes Release date: 2018-11-04 Download
⇒ JDK 11 java.instrument.jmod - Instrument Module
2022-08-06, 193763👍, 5💬
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