From 90a5dc9b9157cd3c02e9505661b7a22b953fae2e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Mon, 4 Aug 2014 12:28:24 +0200
Subject: [PATCH] editor: removing span on delete with only one character

---
 .../modules/documentCanvas/canvas/keyboard.js  | 18 ++++++++++++++++++
 src/editor/plugins/core/core.test.js           | 16 ++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/src/editor/modules/documentCanvas/canvas/keyboard.js b/src/editor/modules/documentCanvas/canvas/keyboard.js
index f8aca73..18b6cfd 100644
--- a/src/editor/modules/documentCanvas/canvas/keyboard.js
+++ b/src/editor/modules/documentCanvas/canvas/keyboard.js
@@ -389,6 +389,24 @@ var handleKeyEvent = function(e, s) {
 };
 // todo: whileRemoveWholetext
 var keyEventHandlers = [
+    {
+        applies: function(e, s) {
+            return s.type === 'caret' &&
+                s.element.wlxmlNode.parent().is({tagName: 'span'}) &&
+                s.element.wlxmlNode.getText().length === 1 &&
+                s.offset === 1 &&
+                (e.key === KEYS.BACKSPACE);
+        },
+        run: function(e, s) {
+            var params = {},
+                prevTextNode = s.element.canvas.getPreviousTextElement(s.element).wlxmlNode;
+            e.preventDefault();
+            s.element.wlxmlNode.parent().detach(params);
+            s.canvas.setCurrentElement(
+                (params.ret && params.ret.mergedTo) || prevTextNode,
+                {caretTo: params.ret ? params.ret.previousLen : (prevTextNode ? prevTextNode.getText().length : 0)});
+        }
+    },
     {
         applies: function(e, s) {
             return s.type === 'caret' && (
diff --git a/src/editor/plugins/core/core.test.js b/src/editor/plugins/core/core.test.js
index 5afa23d..67e3e7e 100644
--- a/src/editor/plugins/core/core.test.js
+++ b/src/editor/plugins/core/core.test.js
@@ -409,6 +409,22 @@ describe('Keyboard interactions', function() {
     describe('backspace at the beginning of a span', function() {
         afterEach(removeCanvas);
 
+        it('deletes span if it contains only one character', function() {
+            var c = getCanvasFromXML('<section>Alice<span class="emp">h</span>a cat</section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('h|').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getText()).to.equal('Alicea cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('Alicea cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(5);
+        });
+
         it('deletes from the end of the preceding text element', function() {
             var c = getCanvasFromXML('<section>Alice<span>has a cat</span></section>'),
                 k = new Keyboard(c);
-- 
2.20.1