我认为给定具有controller
&view
属性的对象,当控制器的状态更改(或m.prop
属性更改)时,它会重新呈现模板。这在我的情况下没有发生(我必须redraw
直接使用)。我在这里做错了什么?////////app.js
define([ 'mithril', 'propertyPane'],
function(m, propertyPane){
//div#properties exists
m.module(document.getElementById('properties'),propertyPane);
});
///////propertyPane.js
define([ 'mithril', 'emitter'],
function(m, emitter) {
//mithril "namespace"
var propertyPane = {};
///////////////////////
// Models //
///////////////////////
propertyPane.PropertyList = Array;
propertyPane.Property = function(name, data) {
//the following reflects the format of the data obects as sent by the event emitter
this.name = m.prop(name);
this.value = m.prop(data.value);
this.type = m.prop(data.valueType);
this.visible = m.prop(data.userVisible);
this.editable = m.prop(data.userEditable);
};
///////////////////////
// Controller //
///////////////////////
propertyPane.controller = function() {
this.properties = propertyPane.PropertyList();
this.updatePropertyPane = function(sender) {
//destroy current list
this.properties.length = 0;
for( var key in sender.currentItem.tag){
this.properties.push(new propertyPane.Property(key, sender.currentItem.tag[key]));
}
//>>>This is required to make the property pane to rerender:<<<
// m.redraw(); //why?
//why doesn't redraw happen automatically (because I'm using m.module)??
}.bind(this);
//this reliably updates the the properties list
//but rerender does not happen
emitter.addCurrentItemChangedListener(this.updatePropertyPane);
};
///////////////////////
// View //
///////////////////////
propertyPane.view = function(ctrl){
return m('ul',
ctrl.properties.map(function(property){
return m('li', property.name() + ' ' + property.value());
})
);
};
return propertyPane;
});
我还尝试添加一个名为foo
update in的属性updatePropertyPane
:
//in controller
this.foo = m.prop(Date.now());
//in updatePropertyPane
this.foo(Date.now());
//in view
m('li', ...+this.foo()) //to make sure the view accesses this property.
那也没有用。