生命周期函数支持promise

3 years ago · 877f8f1061
2 changed files with 17 additions and 4 deletions
--- a/examples/dev.html
+++ b/examples/dev.html
@ -2,7 +2,7 @@
 <head>
    <meta charset="utf-8">
    <title></title>
-    <link rel="stylesheet" type="text/css" href="../dist/2.0/fineui.css"/>
+    <link rel="stylesheet" type="text/css" href="http://localhost:9001/fineui.css"/>
    <!--    <script src="../dist/2.0/fineui.js"></script>-->
    <script src="http://localhost:9001/fineui.js"></script>
 </head>
@ -24,6 +24,13 @@
            height: 200,
            width: 600
        },
+        beforeInit: function () {
+            return new Promise(function (resolve) {
+                setTimeout(function () {
+                    resolve();
+                }, 1000);
+            });
+        },
        _store: function () {
            return BI.Models.getModel("demo.model");
        },
@ -49,7 +56,7 @@
                            type: "bi.button",
                            text: "点击",
                            handler: function () {
-                                store.model.columnSize = [300, "fill"]
+                                store.model.columnSize = [300, "fill"];
                            }
                        }]
                    }]
--- a/src/core/4.widget.js
+++ b/src/core/4.widget.js
@ -133,7 +133,10 @@

                if (self.options.beforeRender || self.beforeRender) {
                    self.__async = true;
-                    (self.options.beforeRender || self.beforeRender).call(self, render);
+                    var beforeRenderResult = (self.options.beforeRender || self.beforeRender).call(self, render);
+                    if (beforeRenderResult instanceof Promise) {
+                        beforeRenderResult.then(init);
+                    }
                } else {
                    self._render();
                    self.__afterRender();
@ -142,7 +145,10 @@

            if (this.options.beforeInit || this.beforeInit) {
                this.__asking = true;
-                (this.options.beforeInit || this.beforeInit).call(this, init);
+                var beforeInitResult = (this.options.beforeInit || this.beforeInit).call(this, init);
+                if (beforeInitResult instanceof Promise) {
+                    beforeInitResult.then(init);
+                }
            } else {
                init();
            }