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allow to save documents with lookup open unless trailing whitespace stripping will really cause the lookup to close (IDEA-101293)

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This commit is contained in:
peter
2013-02-18 14:30:30 +01:00
parent 694d24be6e
commit ddd8175962
1 changed files with 36 additions and 1 deletions
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platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupDocumentSavingVetoer.java
+36 -1
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@@ -15,12 +15,18 @@
*/
package com.intellij.codeInsight.lookup.impl;
import com.intellij.codeInsight.lookup.Lookup;
import com.intellij.codeInsight.lookup.LookupEx;
import com.intellij.codeInsight.lookup.LookupManager;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ex.EditorSettingsExternalizable;
import com.intellij.openapi.fileEditor.FileDocumentSynchronizationVetoer;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.project.ProjectManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
import org.jetbrains.annotations.NotNull;
/**
@@ -29,17 +35,46 @@ import org.jetbrains.annotations.NotNull;
public class LookupDocumentSavingVetoer implements FileDocumentSynchronizationVetoer {
@Override
public boolean maySaveDocument(@NotNull Document document) {
if (ApplicationManager.getApplication().isDisposed()) {
return true;
}
final EditorSettingsExternalizable settings = EditorSettingsExternalizable.getInstance();
if (settings == null || EditorSettingsExternalizable.STRIP_TRAILING_SPACES_NONE.equals(settings.getStripTrailingSpaces())) {
return true;
}
for (Project project : ProjectManager.getInstance().getOpenProjects()) {
if (!project.isInitialized() || project.isDisposed()) {
continue;
}
if (LookupManager.getInstance(project).getActiveLookup() != null) {
LookupEx lookup = LookupManager.getInstance(project).getActiveLookup();
if (lookup != null && isInTrailingSpace(lookup, document)) {
return false;
}
}
return true;
}
private static boolean isInTrailingSpace(Lookup lookup, Document document) {
Editor editor = InjectedLanguageUtil.getTopLevelEditor(lookup.getEditor());
if (editor.getDocument() != document) {
return false;
}
int caret = editor.getCaretModel().getOffset();
if (caret <= 0 || caret >= document.getTextLength()) {
return false;
}
CharSequence seq = document.getCharsSequence();
if (seq.charAt(caret) == '\n' && Character.isWhitespace(seq.charAt(caret - 1))) {
return true;
}
return false;
}
@Override
public boolean mayReloadFileContent(VirtualFile file, @NotNull Document document) {
return true;