From 09c25baf6caa34774acbf04f1217bbcffd2d985e Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Mon, 30 Oct 2017 13:34:45 -0700
Subject: [PATCH 1/2] :arrow_up: text-buffer for DisplayLayer.onDidChangeSync
 change

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 4ccff5107..678ec53e3 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "service-hub": "^0.7.4",
     "sinon": "1.17.4",
     "temp": "^0.8.3",
-    "text-buffer": "13.7.1",
+    "text-buffer": "13.8.0-display-layer-change-event-1",
     "typescript-simple": "1.0.0",
     "underscore-plus": "^1.6.6",
     "winreg": "^1.2.1",

From 482824047c9c92a15d429577ed1eec8d8c49c16a Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Mon, 30 Oct 2017 17:26:21 -0700
Subject: [PATCH 2/2] :arrow_up: text-buffer

---
 package.json                 |  2 +-
 src/text-editor-component.js |  8 ++++++--
 src/text-editor.coffee       | 21 ++++++++++++++++++---
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/package.json b/package.json
index 678ec53e3..8dfed5b41 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "service-hub": "^0.7.4",
     "sinon": "1.17.4",
     "temp": "^0.8.3",
-    "text-buffer": "13.8.0-display-layer-change-event-1",
+    "text-buffer": "13.8.0-display-layer-change-event-2",
     "typescript-simple": "1.0.0",
     "underscore-plus": "^1.6.6",
     "winreg": "^1.2.1",
diff --git a/src/text-editor-component.js b/src/text-editor-component.js
index f19b7e31c..b67b45f83 100644
--- a/src/text-editor-component.js
+++ b/src/text-editor-component.js
@@ -2456,8 +2456,12 @@ class TextEditorComponent {
 
   didChangeDisplayLayer (changes) {
     for (let i = 0; i < changes.length; i++) {
-      const {start, oldExtent, newExtent} = changes[i]
-      this.spliceLineTopIndex(start.row, oldExtent.row, newExtent.row)
+      const {oldRange, newRange} = changes[i]
+      this.spliceLineTopIndex(
+        newRange.start.row,
+        oldRange.end.row - oldRange.start.row,
+        newRange.end.row - newRange.start.row
+      )
     }
 
     this.scheduleUpdate()
diff --git a/src/text-editor.coffee b/src/text-editor.coffee
index 79e00e31a..3bc5fa34e 100644
--- a/src/text-editor.coffee
+++ b/src/text-editor.coffee
@@ -468,10 +468,10 @@ class TextEditor extends Model
 
   subscribeToDisplayLayer: ->
     @disposables.add @tokenizedBuffer.onDidChangeGrammar @handleGrammarChange.bind(this)
-    @disposables.add @displayLayer.onDidChangeSync (e) =>
+    @disposables.add @displayLayer.onDidChange (changes) =>
       @mergeIntersectingSelections()
-      @component?.didChangeDisplayLayer(e)
-      @emitter.emit 'did-change', e
+      @component?.didChangeDisplayLayer(changes)
+      @emitter.emit 'did-change', changes.map (change) -> new ChangeEvent(change)
     @disposables.add @displayLayer.onDidReset =>
       @mergeIntersectingSelections()
       @component?.didResetDisplayLayer()
@@ -3911,3 +3911,18 @@ class TextEditor extends Model
       endRow++
 
     new Range(new Point(startRow, 0), new Point(endRow, @buffer.lineLengthForRow(endRow)))
+
+class ChangeEvent
+  constructor: ({@oldRange, @newRange}) ->
+
+  Object.defineProperty @prototype, 'start', {
+    get: -> @oldRange.start
+  }
+
+  Object.defineProperty @prototype, 'oldExtent', {
+    get: -> @oldRange.getExtent()
+  }
+
+  Object.defineProperty @prototype, 'newExtent', {
+    get: -> @newRange.getExtent()
+  }