javascript - Dojo stackContainer 在调整窗口大小之前不显示子项

Question

这是我要创建的小部件。目标是让一个 stackContainer 由顶部的单选按钮控制。

我已经尝试过 dojo 文档中的示例，但它具有相同的错误行为。

define(["dojo/ready",  "dojo/_base/declare", "dijit/_WidgetBase", "dojo/dom-construct", 
        "dojo/_base/lang", "dojo/on", "dojo/dom-attr", "dijit/form/RadioButton", 
        "dojo/dom-style", "dijit/layout/ContentPane", "dijit/layout/StackContainer", 
        "tcs/Log"], 
function(ready, declare, _WidgetBase, domConstruct, 
         lang, on, attr, RadioButton, 
         style, ContentPane, StackContainer, 
         log) {

    /**
     * @class
     * @name gijit.workflow.debug.combi
     */
    return declare("gijit.workflow.debug.combi", [_WidgetBase], {
        workflow : null,
        panes : null,
        width : "600px",
        height : "400px",

        _beforeCall : function(d) {
            alert("beforeCall");
        },

        buildRendering : function() {
            this.domNode = domConstruct.create("div", {id:"myform"});
            var contain = domConstruct.create("div", null, this.domNode, "last");
            var stackContainer = new StackContainer({
                style: "height: " + this.height + "; width: " + this.width + "; border: 0px solid red"
            }, contain);
            var buttons = domConstruct.create("form", null, this.domNode, "first");
            for(var i=0; i<this.panes.length; i++){
                var contentPane = new ContentPane({
                    id : this.panes[i].title,
                    title : this.panes[i].title,
                    content : this.panes[i].content
                })
                stackContainer.addChild(contentPane);

                var buttonDiv = domConstruct.create("span", null, buttons, "last");
                style.set(buttonDiv, "display", "inline-block");
                style.set(buttonDiv, "margin", "10px");

                var label = domConstruct.create("div", {innerHTML: this.panes[i].title}, buttonDiv, "last");

                if(i==0){
                    var RButton = new RadioButton({
                        title : this.panes[i].title,
                        showTitle : true,
                        checked : true,
                        value : this.panes[i].title, 
                        name : "options",
                        onClick : function(a){stackContainer.selectChild(a.explicitOriginalTarget.attributes.value.textContent)}
                    }).placeAt(buttonDiv);
                } else {
                    var RButton = new RadioButton({
                        title : this.panes[i].title,
                        showTitle : true,
                        checked : false,
                        value : this.panes[i].title,
                        name : "options",
                        onClick : function(a){stackContainer.selectChild(a.explicitOriginalTarget.attributes.value.textContent)}
                    }).placeAt(buttonDiv);
                }
                contentPane.resize();
                contentPane.startup();
            }
            stackContainer.startup();
                    //Hacks in attempt to get the stuff to show
            for(var i=0; i<stackContainer.getChildren().length; i++){
                stackContainer.getChildren()[i].startup();
                stackContainer.getChildren()[i].resize();
                if(typeof stackContainer.getChildren()[i].getChildren()[0] === 'object'){
                    stackContainer.getChildren()[i].getChildren()[0].startup(); 
                }
            }
            stackContainer.resize();
        },
    });
});

在大多数情况下，它是有效的。但是为了显示任何内容，我必须调整窗口大小。所有大小调整/启动调用都是在最初不起作用后添加的，但它们都没有做任何事情。

Answer 1

如果您以编程方式将子窗口小部件添加到您的窗口小部件，您需要定义一个启动子窗口小部件的启动函数。每当创建新实例并将其放置在 dom 中时，都应调用该启动函数。例如:

require(["dojo/ready", "dojo/_base/declare", "dijit/_WidgetBase", "dojo/dom-construct",
  "dojo/_base/lang", "dojo/on", "dojo/dom-attr", "dijit/form/RadioButton",
  "dojo/dom-style", "dijit/layout/ContentPane", "dijit/layout/StackContainer"],

function (ready, declare, _WidgetBase, domConstruct,
lang, on, attr, RadioButton,
style, ContentPane, StackContainer) {


  var MyClass = declare("gijit.workflow.debug.combi", [_WidgetBase], {
    startup: function () {
      this.inherited(arguments);
      stackContainer.startup();
    }
  });
  var x = new MyClass({});
  x.placeAt('node');
//manually call startup after instantiating the widget.  If  the parser is what is creating your widget, it calls startup automatically.  startup must be called after the widget is in the dom.
  x.startup();
  console.log(x);
});