Adds atom

2 files changed, 85 insertions, 0 deletions

diff --git a/atom/packages/relative-line-numbers/lib/line-number-view.coffee b/atom/packages/relative-line-numbers/lib/line-number-view.coffee
new file mode 100644
index 0000000..6346a3c
--- /dev/null
+++ b/atom/packages/relative-line-numbers/lib/line-number-view.coffee
@@ -0,0 +1,61 @@
+{CompositeDisposable} = require 'atom'
+
+module.exports =
+class LineNumberView
+  constructor: (@editor) ->
+    @subscriptions = new CompositeDisposable()
+    @editorView = atom.views.getView(@editor)
+    @trueNumberCurrentLine = atom.config.get('relative-line-numbers.trueNumberCurrentLine')
+    @showNormalLineNumbers = atom.config.get('relative-line-numbers.showNormalLineNumbers')
+
+    # Subscribe for when the line numbers should be updated.
+    @subscriptions.add(@editor.onDidChangeCursorPosition(@_update))
+    @subscriptions.add(@editor.onDidStopChanging(@_update))
+
+    # Subscribe to when the true number on current line config is modified.
+    @subscriptions.add atom.config.onDidChange 'relative-line-numbers.trueNumberCurrentLine', =>
+      @trueNumberCurrentLine = atom.config.get('relative-line-numbers.trueNumberCurrentLine')
+      @_update()
+
+    # Subscribe to when the show normal line numbers config is modified.
+    @subscriptions.add atom.config.onDidChange 'relative-line-numbers.showNormalLineNumbers', =>
+      @showNormalLineNumbers = atom.config.get('relative-line-numbers.showNormalLineNumbers')
+      @_update()
+
+   # Dispose the subscriptions when the editor is destroyed.
+    @subscriptions.add @editor.onDidDestroy =>
+      @subscriptions.dispose()
+
+    @_update()
+
+  _spacer: (totalLines, currentIndex) ->
+    Array(totalLines.toString().length - currentIndex.toString().length + 1).join ' '
+
+  # Update the line numbers on the editor
+  _update: () =>
+    totalLines = @editor.getLineCount()
+    currentLineNumber = @editor.getCursorScreenPosition().row + 1
+    lineNumberElements = @editorView.rootElement?.querySelectorAll('.line-number')
+
+    index = @_index(totalLines, currentLineNumber)
+
+    for lineNumberElement in lineNumberElements
+      row = lineNumberElement.getAttribute('data-buffer-row')
+      relative = index[row] or = 0
+      normalLineNumbers = ''
+      if @showNormalLineNumbers
+        humanRow = parseInt(row) + 1
+        normalLineNumbers = humanRow + @_spacer(totalLines, humanRow) + " "
+      lineNumberElement.innerHTML = "#{normalLineNumbers}#{relative}<div class=\"icon-right\"></div>"
+
+  # Return a lookup  array with the relative line numbers
+  _index: (totalLines, currentLineNumber) ->
+    for line in [0...totalLines]
+      lineNumber = (Math.abs(currentLineNumber - (line + 1)))
+      if @trueNumberCurrentLine and lineNumber == 0
+        if @showNormalLineNumbers
+          '•'
+        else
+          currentLineNumber
+      else
+        lineNumber
diff --git a/atom/packages/relative-line-numbers/lib/relative-line-numbers.coffee b/atom/packages/relative-line-numbers/lib/relative-line-numbers.coffee
new file mode 100644
index 0000000..34fd190
--- /dev/null
+++ b/atom/packages/relative-line-numbers/lib/relative-line-numbers.coffee
@@ -0,0 +1,24 @@
+LineNumberView = require './line-number-view'
+
+module.exports =
+  # Config schema
+  config:
+    trueNumberCurrentLine:
+      type: 'boolean'
+      default: true
+      description: 'Show the true number on the current line'
+    showNormalLineNumbers:
+      type: 'boolean'
+      default: true
+      description: 'Show normal line numbers'
+
+  configDefaults:
+    trueNumberCurrentLine: true
+    showNormalLineNumbers: true
+
+  activate: (state) ->
+    console.log('Activiating relative line numbers.');
+    atom.workspace.observeTextEditors (editor) ->
+      new LineNumberView(editor)
+
+  deactive: () ->