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[bazelbuild#6664]: Enable External Workspace completions and tests
Also add a CharFilter that enable:
* '@' to filter the lookup elements and not hide the lookup.
* '/' to autocomplete selected item
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55 changes: 55 additions & 0 deletions
55
base/src/com/google/idea/blaze/base/lang/buildfile/completion/BuildLabelCharFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright 2024 The Bazel Authors. All rights reserved. | ||
| * | ||
| * 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. | ||
| */ | ||
| package com.google.idea.blaze.base.lang.buildfile.completion; | ||
|
|
||
| import com.google.idea.blaze.base.lang.buildfile.language.BuildFileLanguage; | ||
| import com.google.idea.blaze.base.lang.buildfile.psi.StringLiteral; | ||
| import com.intellij.codeInsight.lookup.CharFilter; | ||
| import com.intellij.codeInsight.lookup.Lookup; | ||
| import com.intellij.psi.PsiFile; | ||
| import com.intellij.psi.util.PsiTreeUtil; | ||
| import org.jetbrains.annotations.NotNull; | ||
|
|
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| import javax.annotation.Nullable; | ||
|
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| /** Allows '@' to be typed (and appended to completion) inside a label from a build file. */ | ||
| public final class BuildLabelCharFilter extends CharFilter { | ||
| @Nullable | ||
| public CharFilter.Result acceptChar(char c, int prefixLength, @NotNull Lookup lookup) { | ||
| if (!lookup.isCompletion()) { | ||
| return null; | ||
| } | ||
|
|
||
| PsiFile file = lookup.getPsiFile(); | ||
| if (file == null || | ||
| file.getLanguage() != BuildFileLanguage.INSTANCE || | ||
| PsiTreeUtil.getParentOfType(lookup.getPsiElement(), StringLiteral.class) == null) { | ||
| return null; | ||
| } | ||
|
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| switch (c) { | ||
| case '@': | ||
| return Result.ADD_TO_PREFIX; | ||
|
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| case '/': | ||
| if (lookup.getCurrentItem() instanceof ExternalWorkspaceLookupElement) { | ||
| return Result.SELECT_ITEM_AND_FINISH_LOOKUP; | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
| } |
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100
.../com/google/idea/blaze/base/lang/buildfile/completion/ExternalWorkspaceLookupElement.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| package com.google.idea.blaze.base.lang.buildfile.completion; | ||
|
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| import com.google.idea.blaze.base.lang.buildfile.psi.StringLiteral; | ||
| import com.google.idea.blaze.base.lang.buildfile.references.QuoteType; | ||
| import com.google.idea.blaze.base.model.primitives.ExternalWorkspace; | ||
| import com.intellij.codeInsight.completion.InsertionContext; | ||
| import com.intellij.codeInsight.lookup.AutoCompletionPolicy; | ||
| import com.intellij.openapi.editor.CaretModel; | ||
| import com.intellij.openapi.editor.Document; | ||
| import com.intellij.psi.util.PsiTreeUtil; | ||
| import com.intellij.util.PlatformIcons; | ||
| import org.jetbrains.annotations.Nullable; | ||
|
|
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| import javax.swing.*; | ||
|
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| public class ExternalWorkspaceLookupElement extends BuildLookupElement { | ||
| private final ExternalWorkspace workspace; | ||
|
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| public ExternalWorkspaceLookupElement(ExternalWorkspace workspace) { | ||
| super('@' + workspace.repoName(), QuoteType.NoQuotes); | ||
| this.workspace = workspace; | ||
| } | ||
|
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| @Override | ||
| public String getLookupString() { | ||
| return super.getItemText(); | ||
| } | ||
|
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| @Override | ||
| @Nullable | ||
| protected String getTypeText() { | ||
| return !workspace.repoName().equals(workspace.name()) ? '@' + workspace.name() : null; | ||
| } | ||
|
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| @Override | ||
| @Nullable | ||
| protected String getTailText() { | ||
| return "//"; | ||
| } | ||
|
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| @Override | ||
| public @Nullable Icon getIcon() { | ||
| return PlatformIcons.LIBRARY_ICON; | ||
| } | ||
|
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| @Override | ||
| public void handleInsert(InsertionContext context) { | ||
| StringLiteral literal = PsiTreeUtil.findElementOfClassAtOffset(context.getFile(), context.getStartOffset(), StringLiteral.class, false); | ||
| if (literal == null) { | ||
| super.handleInsert(context); | ||
| return; | ||
| } | ||
|
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| Document document = context.getDocument(); | ||
| context.commitDocument(); | ||
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| // if we completed by pressing '/' (since this lookup element should never complete using '/') . | ||
| if (context.getCompletionChar() == '/') { | ||
| context.setAddCompletionChar(false); | ||
| } | ||
|
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| CaretModel caret = context.getEditor().getCaretModel(); | ||
| // find an remove trailing package path after insert / replace. | ||
| // current element text looks like `@workspace`. If this is complete inside an existing workspace name the | ||
| // result would look like: @workspace<caret>old_workspace_path//. The following bit will remove `old_workspace_path//` | ||
| int replaceStart = context.getTailOffset(); | ||
| int replaceEnd = context.getTailOffset(); | ||
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| int indexOfPackageStart = literal.getText().lastIndexOf("//"); | ||
| if (indexOfPackageStart != -1) { | ||
| // shift to be a document offset | ||
| replaceEnd = indexOfPackageStart + 2 + literal.getTextOffset(); | ||
| } | ||
|
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| document.replaceString(replaceStart, replaceEnd, "//"); | ||
| context.commitDocument(); | ||
| caret.moveToOffset(replaceStart + 2); | ||
|
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| // handle auto insertion of end quote. This will have to be if the completion is triggered inside a `"@<caret` bit | ||
| if (insertClosingQuotes()) { | ||
| QuoteType quoteType = literal.getQuoteType(); | ||
| if (quoteType != QuoteType.NoQuotes && !literal.getText().endsWith(quoteType.quoteString)) { | ||
| document.insertString(literal.getTextOffset() + literal.getTextLength(), quoteType.quoteString); | ||
| context.commitDocument(); | ||
| } | ||
| } | ||
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| super.handleInsert(context); | ||
| } | ||
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| @Override | ||
| public boolean requiresCommittedDocuments() { | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public AutoCompletionPolicy getAutoCompletionPolicy() { | ||
| return AutoCompletionPolicy.ALWAYS_AUTOCOMPLETE; | ||
| } | ||
| } |
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