Fix for #689 and improve blank line handling for the ip/ap text-objects

lib/text-objects.coffee

@@ -160,26 +160,42 @@ class SelectAWholeWord extends TextObject
         selection.selectRight()
       true
 
-class SelectInsideParagraph extends TextObject
-  constructor: (@editor, @inclusive) ->
-  select: ->
-    for selection in @editor.getSelections()
-      range = selection.cursor.getCurrentParagraphBufferRange()
-      if range?
-        selection.setBufferRange(range)
-        selection.selectToBeginningOfNextParagraph()
-      true
+class Paragraph extends TextObject
 
-class SelectAParagraph extends TextObject
-  constructor: (@editor, @inclusive) ->
   select: ->
     for selection in @editor.getSelections()
-      range = selection.cursor.getCurrentParagraphBufferRange()
-      if range?
-        selection.setBufferRange(range)
-        selection.selectToBeginningOfNextParagraph()
-        selection.selectDown()
-      true
+      @selectParagraph(selection)
+
+  # Return a range delimted by the start or the end of a paragraph
+  paragraphDelimitedRange: (startPoint) ->
+    inParagraph = @isParagraphLine(@editor.lineTextForBufferRow(startPoint.row))
+    upperRow = @searchLines(startPoint.row, -1, inParagraph)
+    lowerRow = @searchLines(startPoint.row, @editor.getLineCount(), inParagraph)
+    new Range([upperRow + 1, 0], [lowerRow, 0])
+
+  searchLines: (startRow, rowLimit, startedInParagraph) ->
+    for currentRow in [startRow..rowLimit]
+      line = @editor.lineTextForBufferRow(currentRow)
+      if startedInParagraph isnt @isParagraphLine(line)
+        return currentRow
+    rowLimit
+
+  isParagraphLine: (line) -> (/\S/.test(line))
+
+class SelectInsideParagraph extends Paragraph
+  selectParagraph: (selection) ->
+    startPoint = selection.getBufferRange().start
+    range = @paragraphDelimitedRange(startPoint)
+    selection.setBufferRange(range)
+    true
+
+class SelectAParagraph extends Paragraph
+  selectParagraph: (selection) ->
+    startPoint = selection.getBufferRange().start
+    range = @paragraphDelimitedRange(startPoint)
+    nextRange = @paragraphDelimitedRange(range.end)
+    selection.setBufferRange([range.start, nextRange.end])
+    true
 
 module.exports = {TextObject, SelectInsideWord, SelectInsideWholeWord, SelectInsideQuotes,
   SelectInsideBrackets, SelectAWord, SelectAWholeWord, SelectInsideParagraph, SelectAParagraph}

spec/text-objects-spec.coffee

@@ -190,10 +190,9 @@ describe "TextObjects", ->
   describe "the 'ip' text object", ->
     beforeEach ->
       editor.setText("\nParagraph-1\nParagraph-1\nParagraph-1\n\n")
-      editor.setCursorScreenPosition([2, 2])
+      editor.setCursorBufferPosition([2, 2])
 
     it "applies operators inside the current paragraph in operator-pending mode", ->
-
       keydown('y')
       keydown('i')
       keydown('p')
@@ -211,20 +210,39 @@ describe "TextObjects", ->
 
       expect(editor.getSelectedScreenRange()).toEqual [[1, 0], [4, 0]]
 
+    it "selects between paragraphs in visual mode if invoked on a empty line", ->
+      editor.setText("text\n\n\n\ntext\n")
+      editor.setCursorBufferPosition([1, 0])
+
+      keydown('v')
+      keydown('i')
+      keydown('p')
+
+      expect(editor.getSelectedScreenRange()).toEqual [[1, 0], [4, 0]]
+
+    it "selects all the lines", ->
+      editor.setText("text\ntext\ntext\n")
+      editor.setCursorBufferPosition([0, 0])
+
+      keydown('v')
+      keydown('i')
+      keydown('p')
+
+      expect(editor.getSelectedScreenRange()).toEqual [[0, 0], [3, 0]]
+
   describe "the 'ap' text object", ->
     beforeEach ->
-      editor.setText("text\n\nParagraph-1\nParagraph-1\nParagraph-1\n\nmoretext")
+      editor.setText("text\n\nParagraph-1\nParagraph-1\nParagraph-1\n\n\nmoretext")
       editor.setCursorScreenPosition([3, 2])
 
     it "applies operators around the current paragraph in operator-pending mode", ->
-
       keydown('y')
       keydown('a')
       keydown('p')
 
-      expect(editor.getText()).toBe "text\n\nParagraph-1\nParagraph-1\nParagraph-1\n\nmoretext"
+      expect(editor.getText()).toBe "text\n\nParagraph-1\nParagraph-1\nParagraph-1\n\n\nmoretext"
       expect(editor.getCursorScreenPosition()).toEqual [2, 0]
-      expect(vimState.getRegister('"').text).toBe "Paragraph-1\nParagraph-1\nParagraph-1\n\n"
+      expect(vimState.getRegister('"').text).toBe "Paragraph-1\nParagraph-1\nParagraph-1\n\n\n"
       expect(editorElement.classList.contains('operator-pending-mode')).toBe(false)
       expect(editorElement.classList.contains('normal-mode')).toBe(true)
 
@@ -233,7 +251,31 @@ describe "TextObjects", ->
       keydown('a')
       keydown('p')
 
-      expect(editor.getSelectedScreenRange()).toEqual [[2, 0], [6, 0]]
+      expect(editor.getSelectedScreenRange()).toEqual [[2, 0], [7, 0]]
+
+    it "applies operators around the next paragraph in operator-pending mode when started from a blank/only-whitespace line", ->
+      editor.setText("text\n\n\n\nParagraph-1\nParagraph-1\nParagraph-1\n\n\nmoretext")
+      editor.setCursorBufferPosition([1, 0])
+
+      keydown('y')
+      keydown('a')
+      keydown('p')
+
+      expect(editor.getText()).toBe "text\n\n\n\nParagraph-1\nParagraph-1\nParagraph-1\n\n\nmoretext"
+      expect(editor.getCursorScreenPosition()).toEqual [1, 0]
+      expect(vimState.getRegister('"').text).toBe "\n\n\nParagraph-1\nParagraph-1\nParagraph-1\n"
+      expect(editorElement.classList.contains('operator-pending-mode')).toBe(false)
+      expect(editorElement.classList.contains('normal-mode')).toBe(true)
+
+    it "selects around the next paragraph in visual mode when started from a blank/only-whitespace line", ->
+      editor.setText("text\n\n\n\nparagraph-1\nparagraph-1\nparagraph-1\n\n\nmoretext")
+      editor.setCursorBufferPosition([1, 0])
+
+      keydown('v')
+      keydown('a')
+      keydown('p')
+
+      expect(editor.getSelectedScreenRange()).toEqual [[1, 0], [7, 0]]
 
   describe "the 'i[' text object", ->
     beforeEach ->