Chapter 1: Getting Started
Chapter 2: Using Atom
- Atom Packages
- Moving in Atom
- Atom Selections
- Editing and Deleting Text
- Find and Replace
- Snippets
- Autocomplete
- Folding
- Panes
- Pending Pane Items
- Grammar
- Version Control in Atom
- GitHub package
- Writing in Atom
- Basic Customization
- Summary
Chapter 3: Hacking Atom
- Tools of the Trade
- The Init File
- Package: Word Count
- Package: Modifying Text
- Package: Active Editor Info
- Creating a Theme
- Creating a Grammar
- Creating a Legacy TextMate Grammar
- Publishing
- Iconography
- Debugging
- Writing specs
- Handling URIs
- Cross-Platform Compatibility
- Converting from TextMate
- Hacking on Atom Core
- Contributing to Official Atom Packages
- Creating a Fork of a Core Package in atom/atom
- Maintaining a Fork of a Core Package in atom/atom
- Summary
Chapter 4: Behind Atom
- Configuration API
- Keymaps In-Depth
- Scoped Settings, Scopes and Scope Descriptors
- Serialization in Atom
- Developing Node Modules
- Interacting With Other Packages Via Services
- Maintaining Your Packages
- How Atom Uses Chromium Snapshots
- Summary
Reference: API
- AtomEnvironment
- BufferedNodeProcess
- BufferedProcess
- Clipboard
- Color
- CommandRegistry
- CompositeDisposable
- Config
- ContextMenuManager
- Cursor
- Decoration
- DeserializerManager
- Directory
- DisplayMarker
- DisplayMarkerLayer
- Disposable
- Dock
- Emitter
- File
- GitRepository
- Grammar
- GrammarRegistry
- Gutter
- HistoryManager
- KeymapManager
- LayerDecoration
- MarkerLayer
- MenuManager
- Notification
- NotificationManager
- Package
- PackageManager
- Pane
- Panel
- PathWatcher
- Point
- Project
- Range
- ScopeDescriptor
- Selection
- StyleManager
- Task
- TextBuffer
- TextEditor
- ThemeManager
- TooltipManager
- ViewRegistry
- Workspace
- WorkspaceCenter
Appendix A: Resources
Appendix B: FAQ
- Is Atom open source?
- What does Atom cost?
- What platforms does Atom run on?
- How can I contribute to Atom?
- Why does Atom collect usage data?
- Atom in the cloud?
- What's the difference between an IDE and an editor?
- How can I tell if subpixel antialiasing is working?
- Why is Atom deleting trailing whitespace? Why is there a newline at the end of the file?
- What does Safe Mode do?
- I have a question about a specific Atom community package. Where is the best place to ask it?
- I’m using an international keyboard and keys that use AltGr or Ctrl+Alt aren’t working
- I’m having a problem with Julia! What do I do?
- I’m getting an error about a “self-signed certificate”. What do I do?
- I’m having a problem with PlatformIO! What do I do?
- How do I make Atom recognize a file with extension X as language Y?
- How do I make the Welcome screen stop showing up?
- How do I preview web page changes automatically?
- How do I accept input from my program or script when using the script package?
- I am unable to update to the latest version of Atom on macOS. How do I fix this?
- I’m trying to change my syntax colors from styles.less, but it isn’t working!
- How do I build or execute code I've written in Atom?
- How do I uninstall Atom on macOS?
- macOS Mojave font rendering change
- Why does macOS say that Atom wants to access my calendar, contacts, photos, etc.?
- How do I turn on line wrap?
- The menu bar disappeared, how do I get it back?
- How do I use a newline in the result of find and replace?
- What is this line on the right in the editor view?
Appendix C: Shadow DOM
Appendix D: Upgrading to 1.0 APIs
Appendix E: Atom server-side APIs
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Panes
You can split any editor pane horizontally or vertically by using Cmd+KCtrl+K Up/Down/Left/Right where the direction key is the direction to split the pane. Once you have a split pane, you can switch between them with Cmd+KCtrl+K Cmd+Up/Down/Left/RightCtrl+Up/Down/Left/Right where the direction is the direction the focus should move to.
Each pane has its own "pane items", which are represented by tabs. You can move the files from pane to pane by dragging them with the mouse and dropping them in the pane you want that file to be in.
If you don't like using tabs, you don't have to. You can disable the tabs package and each pane will still support multiple pane items. You just won't have tabs to use to click between them.
To close a pane, you can close all pane items with Cmd+WCtrl+W. You can configure whether panes auto-close when empty in the Settings View with the "Remove Empty Panes" setting under Core Settings.