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(this.$context, o.context, o.watch);
            BI.watch(o.context, o.watch);
        }
    },
    setValue: function (v) {