Fix indent list that spans multiple lines

Fix #222

Author: zhuochun

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.7.3
+
+* Fix indent list that spans multiple lines
+
 ## 2.7.2
 
 * Fix abort insert image from clipboard (when no image in the clipboard)

lib/commands/edit-line.coffee

@@ -145,8 +145,8 @@ class EditLine
     head.row != tail.row || head.column != tail.column
 
   _replaceLine: (selection, row, line) ->
-    selection.cursor.setBufferPosition([row, 0])
-    selection.selectToEndOfLine()
+    range = selection.cursor.getCurrentLineBufferRange()
+    selection.setBufferRange(range)
     selection.insertText(line)
 
   _isAtLineBeginning: (line, col) ->

spec/commands/edit-line-spec.coffee

@@ -298,6 +298,29 @@ describe "EditLine", ->
       editLine.trigger(event)
       expect(editor.getText()).toBe("  1. list")
 
+    it "indent long line if it is an ordered list", ->
+      editor.setText [
+          "3. Consider a (ordered or unordered) markdown list. On pressing tab to indent the item, if the item spans over more than one line, then the text of the item alters. See the below gif in https://github.com/zhuochun/md-writer/issues/222"
+          ""
+          "This behaviour is not observed when the list item does not extend to the next line."
+        ].join("\n")
+      editor.setCursorBufferPosition([0, 5])
+
+      editLine.trigger(event)
+      expect(editor.getText()).toBe [
+        "  1. Consider a (ordered or unordered) markdown list. On pressing tab to indent the item, if the item spans over more than one line, then the text of the item alters. See the below gif in https://github.com/zhuochun/md-writer/issues/222"
+        ""
+        "This behaviour is not observed when the list item does not extend to the next line."
+      ].join("\n")
+
+      # indent one more time
+      editLine.trigger(event)
+      expect(editor.getText()).toBe [
+        "    1. Consider a (ordered or unordered) markdown list. On pressing tab to indent the item, if the item spans over more than one line, then the text of the item alters. See the below gif in https://github.com/zhuochun/md-writer/issues/222"
+        ""
+        "This behaviour is not observed when the list item does not extend to the next line."
+      ].join("\n")
+
     it "insert space if it is text", ->
       editor.setText "texttext"
       editor.setCursorBufferPosition([0, 4])