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Removed old MouseGrabber from some remaining listener lists it was added to.pull/154/head
weisj
5 years ago
4 changed files with 408 additions and 294 deletions
@ -0,0 +1,298 @@ |
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/* |
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* MIT License |
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* |
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* Copyright (c) 2020 Jannis Weis |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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* |
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*/ |
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package com.github.weisj.darklaf.ui.popupmenu; |
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import java.applet.Applet; |
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import java.awt.*; |
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import java.awt.event.*; |
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import java.security.PrivilegedAction; |
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import java.util.List; |
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import javax.swing.*; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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import sun.awt.SunToolkit; |
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import com.github.weisj.darklaf.components.OverlayScrollPane; |
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import com.github.weisj.darklaf.util.DarkUIUtil; |
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public class MouseGrabber implements ChangeListener, AWTEventListener, ComponentListener, WindowListener { |
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Window grabbedWindow; |
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MenuElement[] lastPathSelected; |
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public MouseGrabber() { |
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install(); |
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} |
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public void install() { |
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MenuSelectionManager msm = MenuSelectionManager.defaultManager(); |
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msm.addChangeListener(this); |
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this.lastPathSelected = msm.getSelectedPath(); |
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if (this.lastPathSelected.length != 0) { |
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grabWindow(this.lastPathSelected); |
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} |
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} |
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protected void grabWindow(final MenuElement[] newPath) { |
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// A grab needs to be added
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final Toolkit tk = Toolkit.getDefaultToolkit(); |
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java.security.AccessController.doPrivileged((PrivilegedAction<Object>) () -> { |
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tk.addAWTEventListener(MouseGrabber.this, |
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AWTEvent.MOUSE_EVENT_MASK |
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| AWTEvent.MOUSE_MOTION_EVENT_MASK |
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| AWTEvent.MOUSE_WHEEL_EVENT_MASK |
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| AWTEvent.WINDOW_EVENT_MASK |
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| SunToolkit.GRAB_EVENT_MASK); |
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return null; |
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}); |
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Component invoker = newPath[0].getComponent(); |
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if (invoker instanceof JPopupMenu) { |
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invoker = ((JPopupMenu) invoker).getInvoker(); |
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} |
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grabbedWindow = DarkUIUtil.getWindow(invoker); |
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if (grabbedWindow != null) { |
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if (tk instanceof SunToolkit) { |
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((SunToolkit) tk).grab(grabbedWindow); |
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} else { |
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grabbedWindow.addComponentListener(this); |
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grabbedWindow.addWindowListener(this); |
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} |
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} |
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} |
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public void uninstall() { |
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MenuSelectionManager.defaultManager().removeChangeListener(this); |
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ungrabWindow(); |
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} |
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protected void ungrabWindow() { |
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final Toolkit tk = Toolkit.getDefaultToolkit(); |
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// The grab should be removed
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java.security.AccessController.doPrivileged((PrivilegedAction<Object>) () -> { |
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tk.removeAWTEventListener(MouseGrabber.this); |
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return null; |
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}); |
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realUngrabWindow(); |
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} |
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protected void realUngrabWindow() { |
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Toolkit tk = Toolkit.getDefaultToolkit(); |
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if (grabbedWindow != null) { |
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if (tk instanceof SunToolkit) { |
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((SunToolkit) tk).ungrab(grabbedWindow); |
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} else { |
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grabbedWindow.removeComponentListener(this); |
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grabbedWindow.removeWindowListener(this); |
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} |
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grabbedWindow = null; |
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} |
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} |
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public void stateChanged(final ChangeEvent e) { |
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MenuSelectionManager msm = MenuSelectionManager.defaultManager(); |
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MenuElement[] p = msm.getSelectedPath(); |
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if (lastPathSelected.length == 0 && p.length != 0) { |
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grabWindow(p); |
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} |
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if (lastPathSelected.length != 0 && p.length == 0) { |
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ungrabWindow(); |
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} |
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lastPathSelected = p; |
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repaintIfNecessary(e); |
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} |
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protected void repaintIfNecessary(final ChangeEvent e) { |
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Object source = e.getSource(); |
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if (source instanceof MenuSelectionManager) { |
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MenuSelectionManager manager = (MenuSelectionManager) source; |
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MenuElement[] path = manager.getSelectedPath(); |
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if (path != null && path.length > 0) { |
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Component comp = path[0].getComponent(); |
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if (comp.isVisible()) { |
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OverlayScrollPane sp = DarkUIUtil.getParentOfType(OverlayScrollPane.class, comp); |
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if (sp != null) sp.repaint(comp.getBounds()); |
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} |
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} |
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} |
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} |
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public void eventDispatched(final AWTEvent ev) { |
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if (ev instanceof sun.awt.UngrabEvent) { |
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// Popup should be canceled in case of ungrab event
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cancelPopupMenu(); |
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return; |
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} |
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if (!(ev instanceof MouseEvent)) { |
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// We are interested in MouseEvents only
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return; |
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} |
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MouseEvent me = (MouseEvent) ev; |
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Component src = me.getComponent(); |
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// If the scroll is done inside a combobox, menuitem,
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// or inside a Popup#HeavyWeightWindow or inside a frame
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// popup should not close which is the standard behaviour
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switch (me.getID()) {/* |
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* Changed here: Make doNotCancelPopup accessible to all component. |
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* Allows for more versatile PopupMenus. |
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*/ |
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case MouseEvent.MOUSE_PRESSED : |
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if (isInPopup(src) || |
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(src instanceof JMenu && ((JMenu) src).isSelected())) { |
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return; |
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} |
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if (!(src instanceof JComponent) || |
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!DarkPopupMenuUI.HIDE_POPUP_VALUE.equals(((JComponent) src).getClientProperty( |
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DarkPopupMenuUI.KEY_DO_NOT_CANCEL_POPUP))) { |
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// Cancel popup only if this property was not set.
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// If this property is set to TRUE component wants
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// to deal with this event by himself.
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cancelPopupMenu(); |
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// Ask UIManager about should we consume event that closes
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// popup. This made to match native apps behaviour.
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boolean consumeEvent = UIManager.getBoolean("PopupMenu.consumeEventOnClose"); |
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// Consume the event so that normal processing stops.
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if (consumeEvent && !(src instanceof MenuElement)) { |
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me.consume(); |
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} |
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} |
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break; |
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case MouseEvent.MOUSE_RELEASED : |
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if (!(src instanceof MenuElement)) { |
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// Do not forward event to MSM, let component handle it
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if (isInPopup(src)) { |
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break; |
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} |
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} |
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if (src instanceof JMenu || !(src instanceof JMenuItem)) { |
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MenuSelectionManager.defaultManager().processMouseEvent(me); |
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} |
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break; |
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case MouseEvent.MOUSE_DRAGGED : |
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if (!(src instanceof MenuElement)) { |
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// For the MOUSE_DRAGGED event the src is
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// the Component in which mouse button was pressed.
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// If the src is in popupMenu,
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// do not forward event to MSM, let component handle it.
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if (isInPopup(src)) { |
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break; |
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} |
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} |
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MenuSelectionManager.defaultManager().processMouseEvent(me); |
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break; |
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case MouseEvent.MOUSE_WHEEL : |
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if (isInPopup(src) |
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|| ((src instanceof JComboBox) && ((JComboBox<?>) src).isPopupVisible()) |
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|| ((src instanceof JWindow) && src.isVisible()) |
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|| ((src instanceof JMenuItem) && src.isVisible()) |
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|| (src instanceof JFrame) |
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|| (src instanceof JDialog)) { |
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return; |
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} |
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cancelPopupMenu(); |
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break; |
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} |
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} |
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protected void cancelPopupMenu() { |
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// We should ungrab window if a user code throws
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// an unexpected runtime exception. See 6495920.
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try { |
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// 4234793: This action should call firePopupMenuCanceled but it's
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// a protected method. The real solution could be to make
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// firePopupMenuCanceled public and call it directly.
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List<JPopupMenu> popups = DarkPopupMenuUI.getPopups(); |
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for (JPopupMenu popup : popups) { |
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popup.putClientProperty("JPopupMenu.firePopupMenuCanceled", Boolean.TRUE); |
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} |
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MenuSelectionManager.defaultManager().clearSelectedPath(); |
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} catch (RuntimeException | Error ex) { |
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realUngrabWindow(); |
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throw ex; |
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} |
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} |
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@SuppressWarnings("deprecation") |
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protected boolean isInPopup(final Component src) { |
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for (Component c = src; c != null; c = c.getParent()) { |
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if (c instanceof Applet || c instanceof Window) { |
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break; |
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} else if (c instanceof JPopupMenu) { |
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return true; |
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} else if (c instanceof JComponent |
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&& Boolean.TRUE.equals(((JComponent) c).getClientProperty( |
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DarkPopupMenuUI.KEY_DO_NOT_CANCEL_ON_SCROLL))) { |
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/* |
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* Change here: allows scrollable components that contain the popupMenu. |
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*/ |
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return true; |
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} |
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} |
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return false; |
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} |
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public void componentResized(final ComponentEvent e) { |
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cancelPopupMenu(); |
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} |
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public void componentMoved(final ComponentEvent e) { |
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cancelPopupMenu(); |
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} |
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public void componentShown(final ComponentEvent e) { |
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cancelPopupMenu(); |
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} |
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public void componentHidden(final ComponentEvent e) { |
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cancelPopupMenu(); |
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} |
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public void windowOpened(final WindowEvent e) {} |
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public void windowClosing(final WindowEvent e) { |
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cancelPopupMenu(); |
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} |
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public void windowClosed(final WindowEvent e) { |
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cancelPopupMenu(); |
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} |
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public void windowIconified(final WindowEvent e) { |
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cancelPopupMenu(); |
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} |
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public void windowDeiconified(final WindowEvent e) {} |
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public void windowActivated(final WindowEvent e) {} |
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public void windowDeactivated(final WindowEvent e) { |
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cancelPopupMenu(); |
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} |
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} |
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@ -0,0 +1,107 @@ |
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/* |
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* MIT License |
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* |
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* Copyright (c) 2020 Jannis Weis |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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|
* copies or substantial portions of the Software. |
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|
* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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* |
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*/ |
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package com.github.weisj.darklaf.ui.popupmenu; |
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import java.awt.*; |
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import java.awt.event.AWTEventListener; |
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import java.awt.event.ComponentListener; |
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import java.awt.event.WindowListener; |
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import java.security.PrivilegedAction; |
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import javax.swing.*; |
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import javax.swing.event.ChangeListener; |
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import com.github.weisj.darklaf.util.DarkUIUtil; |
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public class MouseGrabberUtil { |
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private MouseGrabberUtil() { |
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} |
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private static MouseGrabber mouseGrabber; |
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public static void uninstallMouseGrabber() { |
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if (mouseGrabber != null) { |
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mouseGrabber.uninstall(); |
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mouseGrabber = null; |
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} |
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} |
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public static void installMouseGrabber() { |
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if (mouseGrabber == null) { |
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uninstallOldMouseGrabber(getOldMouseGrabber()); |
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mouseGrabber = new MouseGrabber(); |
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mouseGrabber.install(); |
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} |
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} |
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public static ChangeListener getOldMouseGrabber() { |
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MenuSelectionManager menuSelectionManager = MenuSelectionManager.defaultManager(); |
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for (ChangeListener listener : menuSelectionManager.getChangeListeners()) { |
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if (listener == null) continue; |
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Class<?> listenerClass = listener.getClass(); |
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if (listenerClass == null) continue; |
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Class<?> enclosingClass = listenerClass.getEnclosingClass(); |
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if (enclosingClass == null) continue; |
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if (listenerClass.getName().endsWith("MouseGrabber") |
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&& enclosingClass.getName().endsWith("BasicPopupMenuUI")) { |
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return listener; |
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} |
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} |
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return null; |
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} |
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/** |
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* This Method is responsible for removing the old MouseGrabber from the AppContext, to be able to add our own |
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* implementation for it that is a bit more generous with closing the popup. |
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*/ |
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public static void uninstallOldMouseGrabber(final ChangeListener oldMouseGrabber) { |
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if (oldMouseGrabber == null) return; |
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MenuSelectionManager menuSelectionManager = MenuSelectionManager.defaultManager(); |
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menuSelectionManager.removeChangeListener(oldMouseGrabber); |
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if (oldMouseGrabber instanceof AWTEventListener) { |
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Toolkit tk = Toolkit.getDefaultToolkit(); |
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java.security.AccessController.doPrivileged((PrivilegedAction<Object>) () -> { |
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tk.removeAWTEventListener((AWTEventListener) oldMouseGrabber); |
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return null; |
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}); |
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} |
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MenuElement[] path = menuSelectionManager.getSelectedPath(); |
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if (path.length != 0 && path[0] != null) { |
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Component invoker = path[0].getComponent(); |
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if (invoker instanceof JPopupMenu) { |
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invoker = ((JPopupMenu) invoker).getInvoker(); |
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} |
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Window grabbedWindow = DarkUIUtil.getWindow(invoker); |
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if (oldMouseGrabber instanceof WindowListener) { |
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grabbedWindow.removeWindowListener((WindowListener) oldMouseGrabber); |
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} |
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if (oldMouseGrabber instanceof ComponentListener) { |
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grabbedWindow.removeComponentListener((ComponentListener) oldMouseGrabber); |
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} |
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} |
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} |
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} |
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