Attachment 211967 Details for Bug 350991 – Patch for jface.text to enable reordering

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[patch] Patch for jface.text to enable reordering

bug350991_jface.text.patch (text/plain), 5.99 KB, created by Marcel Bruch

on 2012-03-02 09:42:00 EST

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Creator: Marcel Bruch

Created: 2012-03-02 09:42:00 EST

Size: 5.99 KB

patch

obsolete

>From 44c3d6b4b1a60b34586cc6fa0bd7d5fe502387c8 Mon Sep 17 00:00:00 2001
>From: Marcel Bruch <marcel.bruch@gmail.com>
>Date: Fri, 2 Mar 2012 14:41:13 +0100
>Subject: [PATCH] https://bugs.eclipse.org/bugs/show_bug.cgi?id=350991
>
>---
> .../contentassist/CompletionProposalPopup.java     |   31 ++++++++++++++++
> .../jface/text/contentassist/ContentAssistant.java |   26 +++++++++++++
> .../contentassist/ICompletionProposalSorter.java   |   38 ++++++++++++++++++++
> 3 files changed, 95 insertions(+), 0 deletions(-)
> create mode 100644 org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ICompletionProposalSorter.java
>
>diff --git a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/CompletionProposalPopup.java b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/CompletionProposalPopup.java
>index 8644363..57b162a 100644
>--- a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/CompletionProposalPopup.java
>+++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/CompletionProposalPopup.java
>@@ -12,6 +12,8 @@
> package org.eclipse.jface.text.contentassist;
> 
> import java.util.ArrayList;
>+import java.util.Arrays;
>+import java.util.Comparator;
> import java.util.List;
> 
> import org.eclipse.osgi.util.TextProcessor;
>@@ -429,6 +431,7 @@ class CompletionProposalPopup implements IContentAssistListener {
> 	 */
> 	private boolean fIsColoredLabelsSupportEnabled= false;
> 
>+	private ICompletionProposalSorter fSorter;
> 
> 	/**
> 	 * Creates a new completion proposal popup for the given elements.
>@@ -1096,6 +1099,8 @@ class CompletionProposalPopup implements IContentAssistListener {
> 		if (oldProposals != fFilteredProposals) // reentrant call was first - abort
> 			return;
> 
>+		sortProposals(proposals);
>+
> 		if (Helper.okToUse(fProposalTable)) {
> 			if (oldProposal instanceof ICompletionProposalExtension2 && fViewer != null)
> 				((ICompletionProposalExtension2) oldProposal).unselected(fViewer);
>@@ -1831,4 +1836,30 @@ class CompletionProposalPopup implements IContentAssistListener {
> 		return new ProposalSelectionHandler(operationCode);
> 	}
> 
>+	/**
>+	 * Sets the sorter to use when reordering is required by one of the completion engines.
>+	 * 
>+	 * @param sorter the sorter new sorter to be used. May be <code>null</code>.
>+	 * 
>+	 * @since 3.8
>+	 */
>+	public void setSorter(ICompletionProposalSorter sorter) {
>+		fSorter= sorter;
>+	}
>+
>+	/**
>+	 * Sorts the given proposal array if a sorter is configured. Does nothing otherwise.
>+	 * 
>+	 * @param proposals the new proposals to display in the popup window
>+	 */
>+	private void sortProposals(final ICompletionProposal[] proposals) {
>+		if (fSorter != null) {
>+			Arrays.sort(proposals, new Comparator() {
>+				public int compare(Object o1, Object o2) {
>+					return fSorter.compare((ICompletionProposal)o1,
>+							(ICompletionProposal)o2);
>+				}
>+			});
>+		}
>+	}
> }
>diff --git a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ContentAssistant.java b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ContentAssistant.java
>index e69d019..431dc86 100644
>--- a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ContentAssistant.java
>+++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ContentAssistant.java
>@@ -985,6 +985,11 @@ public class ContentAssistant implements IContentAssistant, IContentAssistantExt
> 	 */
> 	private boolean fIsColoredLabelsSupportEnabled= false;
> 
>+	/**
>+	 * The sorter used to order completion proposals before presented.
>+	 */
>+	private ICompletionProposalSorter fSorter;
>+
> 
> 	/**
> 	 * Creates a new content assistant. The content assistant is not automatically activated,
>@@ -2462,4 +2467,25 @@ public class ContentAssistant implements IContentAssistant, IContentAssistantExt
> 		fIsColoredLabelsSupportEnabled= isEnabled;
> 	}
> 
>+	/**
>+	 * Sets the sorter used to reorder proposal completions on typing
>+	 * 
>+	 * @param sorter the sorter that specifies the order how the proposals are presented to the user
>+	 * @since 3.8
>+	 * @see CompletionProposalPopup#setSorter(ICompletionProposalSorter)
>+	 */
>+	public void setSorter(ICompletionProposalSorter sorter) {
>+		fSorter= sorter;
>+		registerSorterWithProposalPopup();
>+	}
>+
>+	/**
>+	 * Registers the current sorter with the proposal popup - if the popup is already available.
>+	 * Does nothing otherwise.
>+	 */
>+	private void registerSorterWithProposalPopup() {
>+		if (fProposalPopup != null) {
>+			fProposalPopup.setSorter(fSorter);
>+		}
>+	}
> }
>diff --git a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ICompletionProposalSorter.java b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ICompletionProposalSorter.java
>new file mode 100644
>index 0000000..f57e8f8
>--- /dev/null
>+++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/ICompletionProposalSorter.java
>@@ -0,0 +1,38 @@
>+/**
>+ * Copyright (c) 2011 Darmstadt University of Technology.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *     Marcel Bruch - Initial API
>+ */
>+package org.eclipse.jface.text.contentassist;
>+
>+import java.util.Comparator;
>+
>+/**
>+ * <p>
>+ * An <code>ICompletionProposalSorter</code> provides support for sorting proposals of a content
>+ * assistant.
>+ * </p>
>+ * <p>
>+ * Implementors of this interface have to register this sorter with the content assist whenever
>+ * needed. See {@link ContentAssistant#setSorter(ICompletionProposalSorter)} for more information on
>+ * how to register a proposal sorter.
>+ * </p>
>+ * 
>+ * @since 3.8
>+ */
>+public interface ICompletionProposalSorter {
>+
>+	/**
>+	 * Compares its two arguments for order. Returns a negative integer, zero, or a positive integer
>+	 * as the first argument is less than, equal to, or greater than the second.
>+	 * 
>+	 * @see Comparator#compare(Object, Object)
>+	 */
>+	public int compare(ICompletionProposal p1, ICompletionProposal p2);
>+
>+}
>-- 
>1.7.5.4
>

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