✅ add spec of copying search results to clipboard

- refine cmd subscription to .preview-pane
- add cmd subscription to @element

Author: liuderchi

lib/project-find-view.coffee

@@ -134,6 +134,9 @@ class ProjectFindView extends View
     @subscriptions.add atom.commands.add 'atom-workspace',
       'find-and-replace:use-selection-as-find-pattern': @setSelectionAsFindPattern
 
+    @subscriptions.add atom.commands.add '.preview-pane',
+      'project-find:copy-search-results': @copySearchResultFromPane
+
     @subscriptions.add atom.commands.add @element,
       'find-and-replace:focus-next': => @focusNextElement(1)
       'find-and-replace:focus-previous': => @focusNextElement(-1)
@@ -145,9 +148,7 @@ class ProjectFindView extends View
       'project-find:toggle-case-option': => @toggleCaseOption()
       'project-find:toggle-whole-word-option': => @toggleWholeWordOption()
       'project-find:replace-all': => @replaceAll()
-
-    @subscriptions.add atom.commands.add 'div.preview-pane',
-      'project-find:copy-search-results': @copySearchResultFromPane
+      'project-find:copy-search-results': => @copySearchResultFromPane()
 
     updateInterfaceForSearching = =>
       @setInfoMessage('Searching...')

spec/project-find-view-spec.coffee

@@ -704,6 +704,22 @@ describe 'ProjectFindView', ->
             expect(resultsPaneView.previewCount.text()).toBe "13 results found in 2 files for items"
             expect(projectFindView.errorMessages).not.toBeVisible()
 
+        it "can copy search results to clipboard", ->
+          oldClipboardText = atom.clipboard.read()
+          atom.commands.dispatch(projectFindView[0], 'core:confirm')
+
+          waitsForPromise ->
+            searchPromise
+
+          runs ->
+            atom.commands.dispatch(projectFindView[0], 'project-find:copy-search-results')
+            searchResults = atom.clipboard.read().split('\n')
+            expect(searchResults[0]).toBe "13 results found in 2 files for items"
+            expect(searchResults[2]).toBe "sample.coffee (7)"
+            expect(searchResults[3]).toBe "\t2\tsort: (items) ->"
+            expect(searchResults[4]).toBe "\t3\treturn items if items.length <= 1"
+            atom.clipboard.write oldClipboardText
+
         it "only searches paths matching text in the path filter", ->
           spyOn(atom.workspace, 'scan').andCallFake -> Promise.resolve()
           projectFindView.pathsEditor.setText('*.js')