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Code Issues Wiki Activity

Fix for 195290: Open Element wildcard problem

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This commit is contained in:
Anton Leherbauer 2007-10-18 12:09:57 +00:00
parent 6a6fd2dc24
commit 2ece943ed1
1 changed files with 54 additions and 9 deletions
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63
core/org.eclipse.cdt.ui/browser/org/eclipse/cdt/internal/ui/browser/opentype/ElementSelectionDialog.java
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@ -28,12 +28,14 @@ import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.browser.ITypeInfo;
@ -142,17 +144,25 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
return rule == this;
}};
private char[] fCurrentPrefix= {};
/**
* The last used prefix to query the index. <code>null</code> means the
* query result should be empty.
*/
private char[] fCurrentPrefix= null;
private Job fUpdateJob;
private boolean fAllowEmptyPrefix;
private boolean fAllowEmptyPrefix= true;
private boolean fAllowEmptyString= true;
private ProgressMonitorPart fProgressMonitorPart;
private String fHelpContextId;
/**
* Constructs an instance of <code>OpenTypeDialog</code>.
* @param parent the parent shell.
*/
public ElementSelectionDialog(Shell parent) {
super(parent);
setMatchEmptyString(false);
fUpdateJob= new UpdateElementsJob(OpenTypeMessages.ElementSelectionDialog_UpdateElementsJob_name);
fUpdateJob.setRule(SINGLE_INSTANCE_RULE);
}
@ -174,13 +184,27 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
return super.close();
}
/**
* Configure the help context id for this dialog.
*
* @param helpContextId
*/
public void setHelpContextId(String helpContextId) {
fHelpContextId= helpContextId;
setHelpAvailable(fHelpContextId != null);
}
/*
* @see org.eclipse.ui.dialogs.AbstractElementListSelectionDialog#setMatchEmptyString(boolean)
*/
public void setMatchEmptyString(boolean matchEmptyString) {
super.setMatchEmptyString(matchEmptyString);
setAllowEmptyPrefix(matchEmptyString);
fAllowEmptyString= matchEmptyString;
if (matchEmptyString) {
setAllowEmptyPrefix(true);
}
}
/**
* Set whether an empty prefix should be allowed for queries.
*
@ -198,6 +222,14 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
return false;
}
/*
* @see org.eclipse.ui.dialogs.TwoPaneElementSelector#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
public Control createDialogArea(Composite parent) {
PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, fHelpContextId);
return super.createDialogArea(parent);
}
/*
* @see org.eclipse.ui.dialogs.TwoPaneElementSelector#createLowerList(org.eclipse.swt.widgets.Composite)
*/
@ -235,7 +267,7 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
return null;
}
HashSet types = new HashSet();
if(prefix.length > 0 || fAllowEmptyPrefix) {
if(prefix != null) {
final IndexFilter filter= new IndexFilter() {
public boolean acceptBinding(IBinding binding) throws CoreException {
if (isVisibleType(IndexModelUtil.getElementType(binding))) {
@ -310,7 +342,14 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
protected void scheduleUpdate(String filterText) {
char[] newPrefix= toPrefix(filterText);
if (fUpdateJob.getState() == Job.RUNNING || !isEquivalentPrefix(fCurrentPrefix, newPrefix)) {
boolean equivalentPrefix= isEquivalentPrefix(fCurrentPrefix, newPrefix);
boolean emptyQuery= newPrefix.length == 0 && !fAllowEmptyPrefix || filterText.length() == 0 && !fAllowEmptyString;
boolean needQuery= !equivalentPrefix;
if (emptyQuery) {
newPrefix= null;
needQuery= needQuery || fCurrentPrefix != null;
}
if(needQuery) {
fUpdateJob.cancel();
fCurrentPrefix= newPrefix;
fUpdateJob.schedule(200);
@ -322,17 +361,23 @@ public class ElementSelectionDialog extends TypeSelectionDialog {
if (qualifiedName.segmentCount() > 1) {
userFilter= qualifiedName.lastSegment();
}
userFilter= userFilter.trim().replaceAll("^(\\*)*", ""); //$NON-NLS-1$//$NON-NLS-2$
int asterix= userFilter.indexOf("*"); //$NON-NLS-1$
return (asterix==-1 ? userFilter : userFilter.substring(0, asterix)).toCharArray();
if (userFilter.endsWith("<")) { //$NON-NLS-1$
userFilter= userFilter.substring(0, userFilter.length() - 1);
}
int asterisk= userFilter.indexOf("*"); //$NON-NLS-1$
int questionMark= userFilter.indexOf("?"); //$NON-NLS-1$
int prefixEnd = asterisk < 0 ? questionMark
: (questionMark < 0 ? asterisk : Math.min(asterisk, questionMark));
return (prefixEnd==-1 ? userFilter : userFilter.substring(0, prefixEnd)).toCharArray();
}
private boolean isEquivalentPrefix(char[] currentPrefix, char[] newPrefix) {
if (currentPrefix.length == 0 || currentPrefix.length > newPrefix.length) {
if (currentPrefix == null || currentPrefix.length > newPrefix.length) {
return false;
} else if (newPrefix.length == currentPrefix.length) {
return Arrays.equals(currentPrefix, newPrefix);
}
return new String(currentPrefix).equals(new String(newPrefix, 0, currentPrefix.length));
}
}