如何在Om Clojurescript中创建Material UI组件？

Question

首先,这个https://github.com/taylorSando/om-material-ui不适用于最新的React/Material UI.我认为,主要原因是控制台中出现此警告:

Warning: Something is calling a React component directly. Use a factory or JSX instead. See: https://fb.me/react-legacyfactory

我还试图"手动"创建组件:

(ns om-test.core
  (:require [om.core :as om :include-macros true]
            [om-tools.dom :as dom :include-macros true]
            [om-tools.core :refer-macros [defcomponent]]
            [om-material-ui.core :as mui :include-macros true]))

(enable-console-print!)

(defonce app-state (atom {:text "Hello Chestnut!"}))

(defn main []
  (om/root
    (fn [app owner]
      (reify
        om/IRender
        (render [_]
          (dom/div (dom/element js/MaterialUI.Paper {} "Hello")
                   (mui/paper {} "Hello"))
          )))
    app-state
    {:target (. js/document (getElementById "app"))}))

因此,这两种方法都会产生相同的警告.

React显然有一些变化.它建议以编程方式创建组件:

var React = require('react');
var MyComponent = React.createFactory(require('MyComponent'));

function render() {
  return MyComponent({ foo: 'bar' });
}

那么如何在Om渲染函数中创建Material UI组件,或者更好我如何在Om渲染函数中创建React组件？

通过Material UI我的意思是https://github.com/callemall/material-ui

我的依赖

:dependencies [[org.clojure/clojure "1.6.0"]
                 [org.clojure/clojurescript "0.0-3058" :scope "provided"]
                 [ring "1.3.2"]
                 [ring/ring-defaults "0.1.4"]
                 [compojure "1.3.2"]
                 [enlive "1.1.6"]
                 [org.omcljs/om "0.9.0"]
                 [environ "1.0.0"]
                 [http-kit "2.1.19"]
                 [prismatic/om-tools "0.3.11"]
                 [om-material-ui "0.1.1" :exclusions [org.clojure/clojurescript
                                                      org.clojure/clojure]]]

Answer 1

好吧,我最终想通了.

1. 使用以下内容构建最新版本的Material UI:https://github.com/taylorSando/om-material-ui/tree/master/build-mui.注意:无需在当前版本中构建CSS(0.10.4)
2. 包含内置material.js于HTML文件中.同样,不需要包含CSS.
3. 避免加载React两次https://github.com/taylorSando/om-material-ui#avoid-loading-react-twice

现在Om的代码:

(ns material-ui-test.core
  (:require [om.core :as om :include-macros true]
            [om.dom :as dom :include-macros true]))

(enable-console-print!)

(defonce app-state (atom {:text "Hello Chestnut!"}))

(def ^:dynamic *mui-theme*
  (.getCurrentTheme (js/MaterialUI.Styles.ThemeManager.)))

(defn main []
  (om/root
    (fn [app owner]
      (reify
        om/IRender
        (render [_]
          (let [ctor (js/React.createFactory
                       (js/React.createClass
                         #js
                             {:getDisplayName    (fn [] "muiroot-context")
                              :childContextTypes #js {:muiTheme js/React.PropTypes.object}
                              :getChildContext   (fn [] #js {:muiTheme *mui-theme*})
                              :render            (fn []
                                                   (dom/div nil
                                                            (dom/h1 nil (:text app))
                                                            (js/React.createElement js/MaterialUI.Slider)))}))]
            (ctor. nil)))))
    app-state
    {:target (. js/document (getElementById "app"))}))

如果你只使用(js/React.createElement js/MaterialUI.Slider)没有:getChildContext等,它会抛出错误:

Uncaught TypeError: Cannot read property 'component' of undefined

这是因为当前的MaterialUI工作原理.请阅读"使用"部分:http://material-ui.com/#/customization/themes

代码试剂是有点更优雅.但我在这里使用了命名空间

[material-ui.core :as ui :include-macros true]

从这个示例项目中复制粘贴:https://github.com/tuhlmann/reagent-material

(def ^:dynamic *mui-theme*
  (.getCurrentTheme (js/MaterialUI.Styles.ThemeManager.)))

(defn main-panel []
  (let [active-panel (rf/subscribe [:active-panel])]
    (r/create-class
      {:display-name "Main Panel"

       :child-context-types
                     #js {:muiTheme js/React.PropTypes.object}

       :get-child-context
                     (fn [this]
                       #js {:muiTheme *mui-theme*})
       :reagent-render
                     (fn []
                       [ui/Slider {:name "slide1"}])})))

编辑:我发布了库,大大简化了整个过程.

图书馆:https://github.com/madvas/cljs-react-material-ui

示例应用程序:https://github.com/madvas/cljs-react-material-ui-example