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36 lines
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36 lines
1.7 KiB
Markdown
<!-- Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
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# Editors
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<link-summary>The Editors section overview/FAQ.</link-summary>
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This section covers working with text in the IntelliJ Platform editor:
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* Tutorial: [](editor_basics.md)
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* [](working_with_text.md)
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* [](coordinates_system.md)
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* [](editor_events.md)
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* [](text_selection.md)
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* [](multiple_carets.md)
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## Editors FAQ
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### How do I get the active editor instance?
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Current select editor(s) can be queried from [`FileEditorManager`](%gh-ic%/platform/analysis-api/src/com/intellij/openapi/fileEditor/FileEditorManager.java).
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From an [Action's `DataContext`](action_system.md#determining-the-action-context), use [`CommonDataKeys.EDITOR`](%gh-ic%/platform/editor-ui-api/src/com/intellij/openapi/actionSystem/CommonDataKeys.java).
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For a given PSI Element, use [`PsiEditorUtil.findEditor()`](%gh-ic%/platform/editor-ui-api/src/com/intellij/psi/util/PsiEditorUtil.java)
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### How can I be notified about editor events?
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Use project-level listener [`FileEditorManagerListener`](%gh-ic%/platform/analysis-api/src/com/intellij/openapi/fileEditor/FileEditorManagerListener.java)
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or [`FileEditorManagerListener$Before`](%gh-ic%/platform/analysis-api/src/com/intellij/openapi/fileEditor/FileEditorManagerListener.java)
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to be notified about all file open/closed/selection changed events.
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### How do I open an text editor for a "fake" file?
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Create a [`LightVirtualFile`](%gh-ic%/platform/core-api/src/com/intellij/testFramework/LightVirtualFile.java) with the contents
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and open it via [`FileEditorManager.openFile()`](%gh-ic%/platform/analysis-api/src/com/intellij/openapi/fileEditor/FileEditorManager.java).
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