Add jump to line bound to meta-l

Closes #176

src/packages/jump-to-line/index.coffee

@@ -0,0 +1,12 @@
+DeferredAtomPackage = require 'deferred-atom-package'
+
+module.exports =
+class JumpToLinePackage extends DeferredAtomPackage
+
+  loadEvents:
+    'editor:jump-to-line': '.editor'
+
+  instanceClass: 'jump-to-line/lib/jump-to-line-view'
+
+  onLoadEvent: (event, instance) ->
+    instance.toggle(event.currentTargetView())

src/packages/jump-to-line/keymaps/jump-to-line.cson

@@ -0,0 +1,6 @@
+'body':
+  'meta-l': 'editor:jump-to-line'
+'.jump-to-line .mini.editor input':
+  'enter': 'core:confirm',
+  'escape': 'core:cancel'
+  'meta-w': 'core:cancel'

src/packages/jump-to-line/lib/jump-to-line-view.coffee

@@ -0,0 +1,52 @@
+{View} = require 'space-pen'
+Editor = require 'editor'
+$ = require 'jquery'
+Point = require 'point'
+
+module.exports =
+class JumpToLineView extends View
+
+  @activate: (rootView) -> new JumpToLineView(rootView)
+
+  @content: ->
+    @div class: 'jump-to-line', =>
+      @subview 'miniEditor', new Editor(mini: true)
+      @div class: 'message', outlet: 'message'
+
+  initialize: (@rootView) ->
+    @miniEditor.on 'focusout', => @detach() if @hasParent()
+    @on 'core:confirm', => @confirm()
+    @on 'core:cancel', => @detach() if @hasParent()
+
+    @miniEditor.preempt 'textInput', (e) =>
+      false unless e.originalEvent.data.match(/[0-9]/)
+
+  toggle: ->
+    if @hasParent()
+      @detach()
+    else
+      @attach()
+
+  detach: ->
+    @miniEditor.setText('')
+    @previouslyFocusedElement?.focus()
+
+    super
+
+  confirm: ->
+    lineNumber = @miniEditor.getText()
+    editor = rootView.getActiveEditor()
+
+    @detach()
+
+    return unless editor and lineNumber.length
+    position = new Point(parseInt(lineNumber - 1, 0))
+    editor.scrollToBufferPosition(position, center: true)
+    editor.setCursorBufferPosition(position)
+    editor.moveCursorToFirstCharacterOfLine()
+
+  attach: ->
+    @previouslyFocusedElement = $(':focus')
+    @rootView.append(this)
+    @message.text("Enter a line number 1-#{@editor.getLineCount()}")
+    @miniEditor.focus()

src/packages/jump-to-line/spec/jump-to-line-spec.coffee

@@ -0,0 +1,41 @@
+RootView = require 'root-view'
+
+describe 'JumpToLine', ->
+  [rootView, jumpToLine, editor] = []
+
+  beforeEach ->
+    rootView = new RootView(require.resolve('fixtures/sample.js'))
+    rootView.enableKeymap()
+    jumpToLine = atom.loadPackage("jump-to-line").getInstance()
+    editor = rootView.getActiveEditor()
+    editor.setCursorBufferPosition([1,0])
+
+  afterEach ->
+    rootView.remove()
+
+  describe "when entering a line number", ->
+    it "only allows 0-9 to be entered in the mini editor", ->
+      expect(jumpToLine.miniEditor.getText()).toBe ''
+      jumpToLine.miniEditor.textInput 'a'
+      expect(jumpToLine.miniEditor.getText()).toBe ''
+      jumpToLine.miniEditor.textInput '40'
+      expect(jumpToLine.miniEditor.getText()).toBe '40'
+
+  describe "when core:confirm is triggered", ->
+    describe "when a line number has been entered", ->
+      it "moves the cursor to the first character of the line", ->
+        jumpToLine.miniEditor.textInput '3'
+        jumpToLine.miniEditor.trigger 'core:confirm'
+        expect(editor.getCursorBufferPosition()).toEqual [2, 4]
+
+    describe "when no line number has been entered", ->
+      it "closes the view and does not update the cursor position", ->
+        jumpToLine.miniEditor.trigger 'core:confirm'
+        expect(jumpToLine.hasParent()).toBeFalsy()
+        expect(editor.getCursorBufferPosition()).toEqual [1, 0]
+
+  describe "when core:cancel is triggered", ->
+    it "closes the view and does not update the cursor position", ->
+      jumpToLine.miniEditor.trigger 'core:cancel'
+      expect(jumpToLine.hasParent()).toBeFalsy()
+      expect(editor.getCursorBufferPosition()).toEqual [1, 0]

themes/Atom - Dark/jump-to-line.css

@@ -0,0 +1,27 @@
+.jump-to-line {
+  position: absolute;
+  width: 200px;
+  top: 0;
+  left: 50%;
+  margin-left: -100px;
+  box-sizing: border-box;
+  z-index: 99;
+  background-color: #484848;
+  border: 1px solid #444;
+  color: #d2d2d2;
+  box-shadow: 0 0 10px #000;
+  border-bottom-left-radius: 3px;
+  border-bottom-right-radius: 3px;
+  padding: 5px;
+  cursor: pointer;
+}
+
+.jump-to-line .editor {
+  box-sizing: border-box;
+  padding: 5px;
+}
+
+.jump-to-line .message {
+  padding-top: 2px;
+  font-size: 11px;
+}

themes/Atom - Dark/package.json

@@ -15,6 +15,7 @@
     "command-palette.css",
     "command-logger.css",
     "autocomplete.css",
-    "gists.css"
+    "gists.css",
+    "jump-to-line.css"
   ]
 }

themes/Atom - Light/jump-to-line.css

@@ -0,0 +1,27 @@
+.jump-to-line {
+  position: absolute;
+  width: 200px;
+  top: 0;
+  left: 50%;
+  margin-left: -100px;
+  box-sizing: border-box;
+  z-index: 99;
+  background-color: #eeeeee;
+  border: 1px solid #c6c6c6;
+  color: #323232;
+  box-shadow: 0 0 10px #555;
+  border-bottom-left-radius: 3px;
+  border-bottom-right-radius: 3px;
+  padding: 5px;
+  cursor: pointer;
+}
+
+.jump-to-line .editor {
+  box-sizing: border-box;
+  padding: 5px;
+}
+
+.jump-to-line .message {
+  padding-top: 2px;
+  font-size: 11px;
+}

themes/Atom - Light/package.json

@@ -15,6 +15,7 @@
     "command-palette.css",
     "command-logger.css",
     "autocomplete.css",
-    "gists.css"
+    "gists.css",
+    "jump-to-line.css"
   ]
 }