Remove Q from PackageManager, ThemeManager, Package, ThemePackage

Signed-off-by: Max Brunsfeld <maxbrunsfeld@gmail.com>

src/package.coffee

@@ -6,7 +6,6 @@ async = require 'async'
 CSON = require 'season'
 fs = require 'fs-plus'
 {Emitter, CompositeDisposable} = require 'event-kit'
-Q = require 'q'
 {includeDeprecatedAPIs, deprecate} = require 'grim'
 
 ModuleCache = require './module-cache'
@@ -139,20 +138,21 @@ class Package
 
   activate: ->
     @grammarsPromise ?= @loadGrammars()
+    @activationPromise ?=
+      new Promise (resolve, reject) =>
+        @resolveActivationPromise = resolve
+        @rejectActivationPromise = reject
+        @measure 'activateTime', =>
+          try
+            @activateResources()
+            if @activationShouldBeDeferred()
+              @subscribeToDeferredActivation()
+            else
+              @activateNow()
+          catch error
+            @handleError("Failed to activate the #{@name} package", error)
 
-    unless @activationDeferred?
-      @activationDeferred = Q.defer()
-      @measure 'activateTime', =>
-        try
-          @activateResources()
-          if @activationShouldBeDeferred()
-            @subscribeToDeferredActivation()
-          else
-            @activateNow()
-        catch error
-          @handleError("Failed to activate the #{@name} package", error)
-
-    Q.all([@grammarsPromise, @settingsPromise, @activationDeferred.promise])
+    Promise.all([@grammarsPromise, @settingsPromise, @activationPromise])
 
   activateNow: ->
     try
@@ -165,7 +165,7 @@ class Package
     catch error
       @handleError("Failed to activate the #{@name} package", error)
 
-    @activationDeferred?.resolve()
+    @resolveActivationPromise?()
 
   activateConfig: ->
     return if @configActivated
@@ -345,7 +345,7 @@ class Package
     @grammarsActivated = true
 
   loadGrammars: ->
-    return Q() if @grammarsLoaded
+    return Promise.resolve() if @grammarsLoaded
 
     loadGrammar = (grammarPath, callback) =>
       atom.grammars.readGrammar grammarPath, (error, grammar) =>
@@ -360,14 +360,13 @@ class Package
           grammar.activate() if @grammarsActivated
         callback()
 
-    deferred = Q.defer()
-    grammarsDirPath = path.join(@path, 'grammars')
-    fs.exists grammarsDirPath, (grammarsDirExists) ->
-      return deferred.resolve() unless grammarsDirExists
+    new Promise (resolve) =>
+      grammarsDirPath = path.join(@path, 'grammars')
+      fs.exists grammarsDirPath, (grammarsDirExists) ->
+        return resolve() unless grammarsDirExists
 
-      fs.list grammarsDirPath, ['json', 'cson'], (error, grammarPaths=[]) ->
-        async.each grammarPaths, loadGrammar, -> deferred.resolve()
-    deferred.promise
+        fs.list grammarsDirPath, ['json', 'cson'], (error, grammarPaths=[]) ->
+          async.each grammarPaths, loadGrammar, -> resolve()
 
   loadSettings: ->
     @settings = []
@@ -383,20 +382,18 @@ class Package
           settings.activate() if @settingsActivated
         callback()
 
-    deferred = Q.defer()
+    new Promise (resolve) =>
+      if fs.isDirectorySync(path.join(@path, 'scoped-properties'))
+        settingsDirPath = path.join(@path, 'scoped-properties')
+        deprecate("Store package settings files in the `settings/` directory instead of `scoped-properties/`", packageName: @name)
+      else
+        settingsDirPath = path.join(@path, 'settings')
 
-    if fs.isDirectorySync(path.join(@path, 'scoped-properties'))
-      settingsDirPath = path.join(@path, 'scoped-properties')
-      deprecate("Store package settings files in the `settings/` directory instead of `scoped-properties/`", packageName: @name)
-    else
-      settingsDirPath = path.join(@path, 'settings')
+      fs.exists settingsDirPath, (settingsDirExists) ->
+        return resolve() unless settingsDirExists
 
-    fs.exists settingsDirPath, (settingsDirExists) ->
-      return deferred.resolve() unless settingsDirExists
-
-      fs.list settingsDirPath, ['json', 'cson'], (error, settingsPaths=[]) ->
-        async.each settingsPaths, loadSettingsFile, -> deferred.resolve()
-    deferred.promise
+        fs.list settingsDirPath, ['json', 'cson'], (error, settingsPaths=[]) ->
+          async.each settingsPaths, loadSettingsFile, -> resolve()
 
   serialize: ->
     if @mainActivated
@@ -406,8 +403,10 @@ class Package
         console.error "Error serializing package '#{@name}'", e.stack
 
   deactivate: ->
-    @activationDeferred?.reject()
-    @activationDeferred = null
+    @rejectActivationPromise?()
+    @activationPromise = null
+    @resolveActivationPromise = null
+    @rejectActivationPromise = null
     @activationCommandSubscriptions?.dispose()
     @deactivateResources()
     @deactivateConfig()

src/theme-manager.coffee

@@ -3,7 +3,6 @@ _ = require 'underscore-plus'
 {Emitter, Disposable, CompositeDisposable} = require 'event-kit'
 {File} = require 'pathwatcher'
 fs = require 'fs-plus'
-Q = require 'q'
 Grim = require 'grim'
 
 # Extended: Handles loading and activating available themes.
@@ -260,32 +259,29 @@ class ThemeManager
     string.replace(/\\/g, '/')
 
   activateThemes: ->
-    deferred = Q.defer()
+    new Promise (resolve) =>
+      # atom.config.observe runs the callback once, then on subsequent changes.
+      atom.config.observe 'core.themes', =>
+        @deactivateThemes()
 
-    # atom.config.observe runs the callback once, then on subsequent changes.
-    atom.config.observe 'core.themes', =>
-      @deactivateThemes()
+        @refreshLessCache() # Update cache for packages in core.themes config
 
-      @refreshLessCache() # Update cache for packages in core.themes config
+        promises = []
+        for themeName in @getEnabledThemeNames()
+          if @packageManager.resolvePackagePath(themeName)
+            promises.push(@packageManager.activatePackage(themeName))
+          else
+            console.warn("Failed to activate theme '#{themeName}' because it isn't installed.")
 
-      promises = []
-      for themeName in @getEnabledThemeNames()
-        if @packageManager.resolvePackagePath(themeName)
-          promises.push(@packageManager.activatePackage(themeName))
-        else
-          console.warn("Failed to activate theme '#{themeName}' because it isn't installed.")
-
-      Q.all(promises).then =>
-        @addActiveThemeClasses()
-        @refreshLessCache() # Update cache again now that @getActiveThemes() is populated
-        @loadUserStylesheet()
-        @reloadBaseStylesheets()
-        @initialLoadComplete = true
-        @emit 'reloaded' if Grim.includeDeprecatedAPIs
-        @emitter.emit 'did-change-active-themes'
-        deferred.resolve()
-
-    deferred.promise
+        Promise.all(promises).then =>
+          @addActiveThemeClasses()
+          @refreshLessCache() # Update cache again now that @getActiveThemes() is populated
+          @loadUserStylesheet()
+          @reloadBaseStylesheets()
+          @initialLoadComplete = true
+          @emit 'reloaded' if Grim.includeDeprecatedAPIs
+          @emitter.emit 'did-change-active-themes'
+          resolve()
 
   deactivateThemes: ->
     @removeActiveThemeClasses()

src/theme-package.coffee

@@ -1,4 +1,3 @@
-Q = require 'q'
 Package = require './package'
 
 module.exports =
@@ -18,14 +17,12 @@ class ThemePackage extends Package
     this
 
   activate: ->
-    return @activationDeferred.promise if @activationDeferred?
-
-    @activationDeferred = Q.defer()
-    @measure 'activateTime', =>
-      try
-        @loadStylesheets()
-        @activateNow()
-      catch error
-        @handleError("Failed to activate the #{@name} theme", error)
-
-    @activationDeferred.promise
+    @activationPromise ?= new Promise (resolve, reject) =>
+      @resolveActivationPromise = resolve
+      @rejectActivationPromise = reject
+      @measure 'activateTime', =>
+        try
+          @loadStylesheets()
+          @activateNow()
+        catch error
+          @handleError("Failed to activate the #{@name} theme", error)