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Notify folding listener about folding region removal

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This commit is contained in:
Dmitry Jemerov
2018-03-12 18:10:35 +01:00
parent 557e06b968
commit 591634c8c5
2 changed files with 20 additions and 18 deletions
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platform/platform-impl/src/com/intellij/openapi/editor/ex/FoldingListener.java
+12 -18
View File
@@ -1,18 +1,4 @@
/*
* Copyright 2000-2010 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package com.intellij.openapi.editor.ex;
import com.intellij.openapi.editor.FoldRegion;
@@ -27,17 +13,25 @@ import org.jetbrains.annotations.NotNull;
public interface FoldingListener {
/**
* Informs that {@code 'collapsed'} state of given fold region is just changed.
* Informs that {@code 'collapsed'} state of given fold region is just changed, or that the given fold region has just been created.
* <p/>
* <b>Note:</b> listener should delay fold region state processing until {@link #onFoldProcessingEnd()} is called.
* I.e. folding model may return inconsistent data between current moment and {@link #onFoldProcessingEnd()}.
*
* @param region fold region that is just collapsed or expanded
*/
void onFoldRegionStateChange(@NotNull FoldRegion region);
default void onFoldRegionStateChange(@NotNull FoldRegion region) {
}
/**
* Informs that the given fold region is about to be removed.
*/
default void beforeFoldRegionRemoved(@NotNull FoldRegion region) {
}
/**
* Informs that fold processing is done.
*/
void onFoldProcessingEnd();
default void onFoldProcessingEnd() {
}
}
platform/platform-impl/src/com/intellij/openapi/editor/impl/FoldingModelImpl.java
+8
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@@ -271,6 +271,7 @@ public class FoldingModelImpl implements FoldingModelEx, PrioritizedInternalDocu
((FoldRegionImpl)region).setExpanded(true, false);
notifyListenersOnFoldRegionStateChange(region);
notifyListenersOnFoldRegionRemove(region);
myFoldRegionsProcessed = true;
region.dispose();
@@ -304,6 +305,7 @@ public class FoldingModelImpl implements FoldingModelEx, PrioritizedInternalDocu
FoldRegion[] regions = getAllFoldRegions();
for (FoldRegion region : regions) {
if (!region.isExpanded()) notifyListenersOnFoldRegionStateChange(region);
notifyListenersOnFoldRegionRemove(region);
region.dispose();
}
doClearFoldRegions();
@@ -591,6 +593,12 @@ public class FoldingModelImpl implements FoldingModelEx, PrioritizedInternalDocu
}
}
private void notifyListenersOnFoldRegionRemove(@NotNull FoldRegion foldRegion) {
for (FoldingListener listener : myListeners) {
listener.beforeFoldRegionRemoved(foldRegion);
}
}
@NotNull
@Override
public String dumpState() {