Allow modules to inject parts of views

services/web/Gruntfile.coffee

@@ -164,6 +164,7 @@ module.exports = (grunt) ->
 	moduleUnitTestTasks = []
 	if fs.existsSync "./modules"
 		for module in fs.readdirSync "./modules"
+			if fs.existsSync "./modules/#{module}/index.coffee"
 				config.coffee["module_#{module}_server"] = {
 					expand: true,
 					flatten: false,

services/web/app/coffee/infrastructure/ExpressLocals.coffee

@@ -6,6 +6,7 @@ SubscriptionFormatters = require('../Features/Subscription/SubscriptionFormatter
 querystring = require('querystring')
 SystemMessageManager = require("../Features/SystemMessages/SystemMessageManager")
 _ = require("underscore")
+Modules = require "./Modules"
 
 fingerprints = {}
 Path = require 'path'
@@ -146,3 +147,9 @@ module.exports = (app)->
 		res.locals.currentLngCode = req.lng
 		next()
 
+	app.use (req, res, next) ->
+		if !Settings.cacheModuleViewIncludes
+			Modules.loadViewIncludes()
+		res.locals.moduleIncludes = Modules.moduleIncludes
+		next()
+

services/web/app/coffee/infrastructure/Modules.coffee

@@ -1,13 +1,36 @@
 fs   = require "fs"
 Path = require "path"
+jade = require "jade"
 
 MODULE_BASE_PATH = Path.resolve(__dirname + "/../../../modules")
 
-modules = []
-for mod in fs.readdirSync(MODULE_BASE_PATH)
-	modules.push require(Path.join(MODULE_BASE_PATH, mod, "index"))
-
 module.exports = Modules =
+	modules: []
+	loadModules: () ->
+		for moduleName in fs.readdirSync(MODULE_BASE_PATH)
+			if fs.existsSync(Path.join(MODULE_BASE_PATH, moduleName, "index.js"))
+				loadedModule = require(Path.join(MODULE_BASE_PATH, moduleName, "index"))
+				loadedModule.name = moduleName
+				@modules.push loadedModule
+
 	applyRouter: (app) ->
-		for module in modules
+		for module in @modules
 			module.router?.apply(app)
+			
+	viewIncludes: {}
+	loadViewIncludes: (app) ->
+		@viewIncludes = {}
+		for module in @modules
+			for view, partial of module.viewIncludes or {}
+				@viewIncludes[view] ||= []
+				@viewIncludes[view].push fs.readFileSync(Path.join(MODULE_BASE_PATH, module.name, "app/views", partial + ".jade"))
+			
+	moduleIncludes: (view, locals) ->
+		partials = Modules.viewIncludes[view] or []
+		html = ""
+		for partial in partials
+			compiler = jade.compile(partial)
+			html += compiler(locals)
+		return html
+		
+Modules.loadModules()

services/web/app/coffee/infrastructure/Server.coffee

@@ -19,6 +19,7 @@ ReferalConnect = require('../Features/Referal/ReferalConnect')
 RedirectManager = require("./RedirectManager")
 OldAssetProxy = require("./OldAssetProxy")
 translations = require("translations-sharelatex").setup(Settings.i18n)
+Modules = require "./Modules"
 
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongojs/node_modules/mongodb"), logger)
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongoose/node_modules/mongodb"), logger)
@@ -41,13 +42,13 @@ app.ignoreCsrf = (method, route) ->
 	ignoreCsrfRoutes.push new express.Route(method, route)
 
 
-
 app.configure () ->
 	if Settings.behindProxy
 		app.enable('trust proxy')
 	app.use express.static(__dirname + '/../../../public', {maxAge: staticCacheAge })
 	app.set 'views', __dirname + '/../../views'
 	app.set 'view engine', 'jade'
+	Modules.loadViewIncludes app
 	app.use express.bodyParser(uploadDir: Settings.path.uploadFolder)
 	app.use express.bodyParser(uploadDir: __dirname + "/../../../data/uploads")
 	app.use translations.expressMiddlewear

services/web/app/views/user/settings.jade

@@ -109,8 +109,11 @@ block content
 								row
 									a(href='/dropbox/unlink').btn #{translate("unlink_dropbox")}
 							- else
+								p
 									a.btn.btn-info(href='/dropbox/beginAuth') #{translate("link_to_dropbox")}
 										
+							| !{moduleIncludes("userSettings", locals)}
+
 							hr.soften
 
 							p.small