ThemeProvider

2 years ago · e32469ad0a
2 changed files with 106 additions and 5 deletions
--- a/examples/ThemeProvider.html
+++ b/examples/ThemeProvider.html
@ -0,0 +1,99 @@
+<html>
+<head>
+    <meta charset="utf-8">
+    <title></title>
+    <!-- <link rel="stylesheet" type="text/css" href="../dist/2.0/fineui.min.css"/>
+    <script src="../dist/2.0/fineui.js"></script> -->
+    <link rel="stylesheet" type="text/css" href="http://fanruan.design/fineui/2.0/fineui.min.css"/>
+<!--     <script src="http://fanruan.design/fineui/2.0/fineui.min.js"></script>-->
+    <script src="http://localhost:9001/fineui.js"></script>
+</head>
+<body>
+<div id="wrapper"></div>
+<script>
+    var Model = BI.inherit(BI.Model, {
+        state: function () {
+            return {
+                theme: "light"
+            };
+        },
+        childContext: ["theme"],
+
+        actions: {
+            toggle: function () {
+                this.model.theme = this.model.theme === "light" ? "dark" : "light";
+            }
+        }
+    });
+    BI.model("demo.model", Model);
+
+    var Child = BI.inherit(BI.Widget, {
+        render: function () {
+            var label;
+            return {
+                type: "bi.context",
+                context: "theme",
+                watch: function (newValue, oldValue) {
+                    label.setText(newValue);
+                },
+                items: [(context) => {
+                    return {
+                        type: "bi.label",
+                        height: 30,
+                        ref: function (_ref) {
+                            label = _ref;
+                        },
+                        text: context.model.theme
+                    }
+                }]
+                
+            };
+        }
+    });
+    BI.shortcut("demo.child", Child);
+
+    var Widget = BI.inherit(BI.Widget, {
+        props: {
+            baseCls: "my-parent"
+        },
+        _store: function () {
+            return BI.Models.getModel("demo.model");
+        },
+        setup: function () {
+            var child;
+            var store = BI.useStore();
+            return function () {
+                return {
+                    type: "bi.vertical",
+                    vgap: 20,
+                    items: [{
+                        type: "demo.child",
+                        ref: function (_ref) {
+                            child = _ref;
+                        }
+                    }, {
+                        type: "bi.button",
+                        text: "改变主题",
+                        handler: function () {
+                            store.toggle();
+                        }
+                    }]
+                };
+            };
+        }
+    });
+    BI.shortcut("demo.parent", Widget);
+    BI.createWidget({
+        type: "bi.absolute",
+        items: [{
+            el: {
+                type: "demo.parent"
+            },
+            top: 100,
+            left: 100
+        }],
+        element: "#wrapper"
+    });
+</script>
+</body>
+</html>
--- a/src/base/context.js
+++ b/src/base/context.js
@ -15,7 +15,10 @@ BI.Context = BI.inherit(BI.Widget, {

    render: function () {
        var self = this, o = this.options;
-        this.context = BI.createWidget(o.items[0] || o.el, {
+        if (o.context) {
+            this.$context = BI.useContext(o.context);
+        }
+        this.context = BI.createWidget((o.items[0] || o.el)(this.$context), {
            element: this,
        });
        this.context.on(BI.Controller.EVENT_CHANGE, function () {
@ -23,11 +26,10 @@ BI.Context = BI.inherit(BI.Widget, {
        });
    },

-    created: function () {
+    __initWatch: function () {
+        BI.Context.superclass.__initWatch.call(this);
        var o = this.options;
-        if (o.context) {
-            BI.watch(o.context, o.watch);
-        }
+        BI.watch(this.$context, o.context, o.watch);
    },

    setValue: function (v) {