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Code Issues Releases Wiki Activity

GP-4466 consolidated focus handling between ComponentProvider and DockableComponent

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This commit is contained in:
ghidragon 2024-03-28 18:26:18 -04:00
parent c131adc670
commit 495dc4df66
8 changed files with 41 additions and 84 deletions
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37
Ghidra/Framework/Docking/src/main/java/docking/ComponentProvider.java
View file

@ -115,6 +115,7 @@ public abstract class ComponentProvider implements HelpDescriptor, ActionContext
private String inceptionInformation;
private String registeredFontId;
private Component defaultFocusComponent;
private ThemeListener themeListener = this::themeChanged;
@ -225,21 +226,35 @@ public abstract class ComponentProvider implements HelpDescriptor, ActionContext
return instanceID;
}
// Default implementation
public void requestFocus() {
JComponent component = getComponent();
if (component == null) {
return; // this shouldn't happen; this implies we have been disposed
public final void requestFocus() {
if (!isVisible()) {
return;
}
KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
Component focusOwner = kfm.getFocusOwner();
if (focusOwner != null && SwingUtilities.isDescendingFrom(focusOwner, component)) {
dockingTool.toFront();
if (defaultFocusComponent != null) {
DockingWindowManager.requestFocus(defaultFocusComponent);
return;
}
component.requestFocus();
JComponent component = getComponent();
Container parent = component == null ? null : component.getParent();
if (parent == null) {
return; // we are either disposed or not added to the tool yet
}
Container focusCycleRoot = parent.getFocusCycleRootAncestor();
FocusTraversalPolicy focusTraversalPolicy = focusCycleRoot.getFocusTraversalPolicy();
Component componentAfter = focusTraversalPolicy.getComponentAfter(focusCycleRoot, parent);
// Only request focus if next component in focus traversal belongs to this provider
if (componentAfter != null && SwingUtilities.isDescendingFrom(componentAfter, parent)) {
DockingWindowManager.requestFocus(componentAfter);
}
}
protected void setDefaultFocusComponent(Component component) {
this.defaultFocusComponent = component;
}
/**

32
Ghidra/Framework/Docking/src/main/java/docking/DockableComponent.java
View file

@ -20,7 +20,6 @@ import java.awt.dnd.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.FocusManager;
import docking.action.DockingActionIf;
import ghidra.util.CascadedDropTarget;
@ -46,7 +45,7 @@ public class DockableComponent extends JPanel implements ContainerListener {
private MouseListener popupListener;
private ComponentPlaceholder placeholder;
private JComponent providerComp;
private Component focusedComponent;
private Component lastFocusedComponent;
private DockingWindowManager winMgr;
private ActionToGuiMapper actionMgr;
private DropTarget dockableDropTarget;
@ -142,10 +141,6 @@ public class DockableComponent extends JPanel implements ContainerListener {
return helpLocation;
}
public Component getFocusedComponent() {
return focusedComponent;
}
void showContextMenu(PopupMenuContext popupContext) {
actionMgr.showPopupMenu(placeholder, popupContext);
}
@ -448,15 +443,16 @@ public class DockableComponent extends JPanel implements ContainerListener {
@Override
// we aren't focusable, so pass focus to a valid child component
public void requestFocus() {
focusedComponent = findFocusedComponent();
if (focusedComponent != null) {
DockingWindowManager.requestFocus(focusedComponent);
if (lastFocusedComponent != null && lastFocusedComponent.isShowing()) {
lastFocusedComponent.requestFocus();
return;
}
placeholder.getProvider().requestFocus();
}
void setFocusedComponent(Component newFocusedComponet) {
// remember it so we can restore it later when necessary
focusedComponent = newFocusedComponet;
lastFocusedComponent = newFocusedComponet;
}
private void componentSelected(Component component) {
@ -467,22 +463,6 @@ public class DockableComponent extends JPanel implements ContainerListener {
}
}
// find the first available component that can take focus
private Component findFocusedComponent() {
if (focusedComponent != null && focusedComponent.isShowing()) {
return focusedComponent;
}
DefaultFocusManager dfm = (DefaultFocusManager) FocusManager.getCurrentManager();
Component component = dfm.getComponentAfter(this, this);
// component must be a child of this DockableComponent
if (component != null && SwingUtilities.isDescendingFrom(component, this)) {
return component;
}
return null;
}
@Override
public void componentAdded(ContainerEvent e) {
initializeComponents(e.getChild());