fix(composer-emojis): Add spec and allow adjacent emojis

Summary:
Adds tests to the emoji picker.

The emoji picker should also now be able to add emojis consecutively (without spaces).

Test Plan: Tests included in diff.

Reviewers: evan, bengotow

Differential Revision: https://phab.nylas.com/D2551

internal_packages/composer-emojis/lib/emojis-composer-extension.jsx

@@ -14,7 +14,7 @@ class EmojisComposerExtension extends ContenteditableExtension {
         const offset = sel.anchorOffset;
         if (!DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
           editor.select(sel.anchorNode,
-                        sel.anchorOffset - triggerWord.length,
+                        sel.anchorOffset - triggerWord.length - 1,
                         sel.focusNode,
                         sel.focusOffset).wrapSelection("n1-emoji-autocomplete");
           editor.select(sel.anchorNode,
@@ -26,9 +26,9 @@ class EmojisComposerExtension extends ContenteditableExtension {
         if (DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
           editor.unwrapNodeAndSelectAll(DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete"));
           editor.select(sel.anchorNode,
-                        sel.anchorOffset + triggerWord.length,
+                        sel.anchorOffset + triggerWord.length + 1,
                         sel.focusNode,
-                        sel.focusOffset + triggerWord.length);
+                        sel.focusOffset + triggerWord.length + 1);
         }
       }
     } else {
@@ -49,9 +49,8 @@ class EmojisComposerExtension extends ContenteditableExtension {
       if (emojiOptions.length > 0 && !toolbarState.dragging && !toolbarState.doubleDown) {
         const locationRefNode = DOMUtils.closest(sel.anchorNode,
                                                  "n1-emoji-autocomplete");
-        const emojiNameNode = DOMUtils.closest(sel.anchorNode,
-                                               "n1-emoji-autocomplete");
-        const selectedEmoji = emojiNameNode.getAttribute("selectedEmoji");
+        if (!locationRefNode) return null;
+        const selectedEmoji = locationRefNode.getAttribute("selectedEmoji");
         return {
           component: EmojiPicker,
           props: {emojiOptions,
@@ -111,22 +110,22 @@ class EmojisComposerExtension extends ContenteditableExtension {
         sel.anchorNode.nodeValue &&
         sel.anchorNode.nodeValue.length > 0 &&
         sel.isCollapsed) {
-      const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset).split(" ");
-      let lastWord = words[words.length - 1].trim();
-      if (words.length === 1 &&
-          lastWord.indexOf(" ") === -1 &&
-          lastWord.indexOf(":") === -1) {
+      const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
+      let index = words.lastIndexOf(":");
+      let lastWord = "";
+      if (index !== -1 && words.lastIndexOf(" ") < index) {
+        lastWord = words.substring(index + 1, sel.anchorOffset);
+      } else {
         const {text} = EmojisComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
-        lastWord = text;
+        index = text.lastIndexOf(":");
+        if (index !== -1 && text.lastIndexOf(" ") < index) {
+          lastWord = text.substring(index + 1);
+        } else {
+          return {triggerWord: "", emojiOptions: []};
         }
-      if (lastWord.length > 1 &&
-          lastWord.charAt(0) === ":" &
-          lastWord.charAt(lastWord.length - 1) !== " ") {
-        let word = lastWord.substring(1);
-        if (lastWord.charAt(lastWord.length - 1) === ":") {
-          word = word.substring(0, word.length - 1);
       }
-        return {triggerWord: lastWord, emojiOptions: EmojisComposerExtension._findMatches(word)};
+      if (lastWord.length > 0) {
+        return {triggerWord: lastWord, emojiOptions: EmojisComposerExtension._findMatches(lastWord)};
       }
       return {triggerWord: lastWord, emojiOptions: []};
     }
@@ -141,21 +140,21 @@ class EmojisComposerExtension extends ContenteditableExtension {
         sel.anchorNode.nodeValue &&
         sel.anchorNode.nodeValue.length > 0 &&
           sel.isCollapsed) {
-      const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset).split(" ");
-      let lastWord = words[words.length - 1].trim();
-      if (words.length === 1 &&
-          lastWord.indexOf(" ") === -1 &&
-          lastWord.indexOf(":") === -1) {
-        const {text, textNode} = EmojisComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
-        lastWord = text;
-        const offset = textNode.nodeValue.lastIndexOf(":");
-        editor.select(textNode,
-                      offset,
+      const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
+      let index = words.lastIndexOf(":");
+      let lastWord = words.substring(index + 1, sel.anchorOffset);
+      if (index !== -1 && words.lastIndexOf(" ") < index) {
+        editor.select(sel.anchorNode,
+                      sel.anchorOffset - lastWord.length - 1,
                       sel.focusNode,
                       sel.focusOffset);
       } else {
-        editor.select(sel.anchorNode,
-                      sel.anchorOffset - lastWord.length,
+        const {text, textNode} = EmojisComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
+        index = text.lastIndexOf(":");
+        lastWord = text.substring(index + 1);
+        const offset = textNode.nodeValue.lastIndexOf(":");
+        editor.select(textNode,
+                      offset,
                       sel.focusNode,
                       sel.focusOffset);
       }

internal_packages/composer-emojis/lib/main.js

@@ -1,6 +1,6 @@
 /** @babel */
 import {ExtensionRegistry} from 'nylas-exports';
-import EmojisComposerExtension from './emojis-composer-extension'
+import EmojisComposerExtension from './emojis-composer-extension';
 
 export function activate() {
   ExtensionRegistry.Composer.register(EmojisComposerExtension);

internal_packages/composer-emojis/spec/emojis-composer-extension-spec.jsx

@@ -0,0 +1,116 @@
+import React, {addons} from 'react/addons';
+import {renderIntoDocument} from '../../../spec/nylas-test-utils';
+import Contenteditable from '../../../src/components/contenteditable/contenteditable';
+import EmojisComposerExtension from '../lib/emojis-composer-extension';
+
+const ReactTestUtils = addons.TestUtils;
+
+describe('EmojisComposerExtension', ()=> {
+  beforeEach(()=> {
+    spyOn(EmojisComposerExtension, 'onContentChanged').andCallThrough()
+    spyOn(EmojisComposerExtension, '_onSelectEmoji').andCallThrough()
+    const html = 'Testing!'
+    const onChange = jasmine.createSpy('onChange')
+    this.component = renderIntoDocument(
+      <Contenteditable html={html} onChange={onChange} extensions={[EmojisComposerExtension]}/>
+    )
+    this.editableNode = React.findDOMNode(ReactTestUtils.findRenderedDOMComponentWithAttr(this.component, 'contentEditable'));
+  })
+
+  describe('when emoji trigger is typed', ()=> {
+    beforeEach(()=> {
+      this._performEdit = (newHTML) => {
+        this.editableNode.innerHTML = newHTML;
+        const sel = document.getSelection()
+        const textNode = this.editableNode.childNodes[0];
+        sel.setBaseAndExtent(textNode, textNode.nodeValue.length, textNode, textNode.nodeValue.length);
+      }
+    })
+
+    it('should show the emoji picker', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-picker').length > 0
+      });
+    })
+
+    it('should be focused on the first emoji in the list', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-option').length > 0
+      });
+      runs(()=> {
+        expect(React.findDOMNode(ReactTestUtils.findRenderedDOMComponentWithClass(this.component, 'emoji-option')).textContent === "💇 :haircut:").toBe(true);
+      });
+    })
+
+    it('should insert an emoji on enter', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-picker').length > 0
+      });
+      runs(()=> {
+        ReactTestUtils.Simulate.keyDown(this.editableNode, {key: "Enter", keyCode: 13, which: 13});
+      });
+      waitsFor(()=> {
+        return EmojisComposerExtension._onSelectEmoji.calls.length > 0
+      })
+      runs(()=> {
+        expect(this.editableNode.textContent === "Testing! 💇").toBe(true);
+      });
+    })
+
+    it('should insert an emoji on click', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-picker').length > 0
+      });
+      runs(()=> {
+        const button = React.findDOMNode(ReactTestUtils.findRenderedDOMComponentWithClass(this.component, 'emoji-option'))
+        ReactTestUtils.Simulate.mouseDown(button);
+        expect(EmojisComposerExtension._onSelectEmoji).toHaveBeenCalled()
+      });
+      waitsFor(()=> {
+        return EmojisComposerExtension._onSelectEmoji.calls.length > 0
+      })
+      runs(()=> {
+        expect(this.editableNode.textContent).toEqual("Testing! 💇");
+      });
+    })
+
+    it('should move to the next emoji on arrow down', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-option').length > 0
+      });
+      runs(()=> {
+        ReactTestUtils.Simulate.keyDown(this.editableNode, {key: "ArrowDown", keyCode: 40, which: 40});
+      });
+      waitsFor(()=> {
+        return EmojisComposerExtension.onContentChanged.calls.length > 1
+      });
+      runs(()=> {
+        expect(React.findDOMNode(ReactTestUtils.findRenderedDOMComponentWithClass(this.component, 'emoji-option')).textContent).toEqual("🍔 :hamburger:");
+      });
+    })
+
+    it('should be able to insert two emojis next to each other', ()=> {
+      runs(()=> {
+        this._performEdit('Testing! 🍔 :h');
+      });
+      waitsFor(()=> {
+        return ReactTestUtils.scryRenderedDOMComponentsWithClass(this.component, 'emoji-picker').length > 0
+      });
+    })
+  })
+})