我可以这样创建中继器:
<div class="gameField" id="gameField" data-win-control="WinJS.UI.Repeater" data-win-options="{ data: GameField.cells}">
<div class="gameCell">
<img data-win-bind="src: symbol GameField.cellSymbolToImg" width="100" height="100" />
</div>
</div>
和js
var Cell = WinJS.Class.define(function(number) {
this.number = number;
this.symbol = "";
});
var getCellsList = function () {
var cells = [];
for (var i = 1; i < 10; i++) {
var cell = new Cell(i);
cells.push(cell);
}
return cells;
};
var cellsList = new WinJS.Binding.List(getCellsList());
WinJS.Namespace.define("GameField", {
cells: cellsList,
cellSymbolToImg: WinJS.Binding.converter(function (symbol) {
return symbol == "" ? "" : "symbol_" + symbol + ".png";
})
});
但是我怎么能绑定点击事件到一些函数,以便我可以从该函数内访问底层单元格对象?
使用这个函数很容易做到这一点。你甚至可以在你的Cell类中直接使用这个处理程序。
var Cell = WinJS.Class.define(function(number) {
var e = document.createElement("div"); //...and initialize however.
this.element = e;
e.winControl = this;
this.number = number;
this.symbol = "";
//Also consider using pointerDown event here instead of click; might respond quicker
e.addEventListener("click", this._click.bind(this));
}, {
//Instance members
_click: function (e) {
//Your handler. "this" will be the instance of Cell that was clicked
}
});
。如您所见,_click函数引用实例成员Cell._click。调用该函数的bind方法就是在该方法中指定要使用的确切对象作为"this"。如果不调用.bind(this),处理程序仍然会被调用,但"this"将是全局上下文,而不是您关心的对象。
对不起,我从来没有得到你的解决方案运行,但我我找到了另一种方法将点击绑定到中继器中。我将发布我的导航示例
<ul data-win-control="WinJS.UI.Repeater" data-win-bind="winControl.data: navigations">
<li data-win-control="Navigation.NavigationItem" data-win-bind="winControl.data: this">
<span data-win-bind="textContent: Name; className: Selected;"></span>
<span data-win-bind="textContent: Selected;"></span>
</li>
</ul>
可以看到,我创建了一个非常简单的控件,并使用"data-win-bind="winControl绑定了repeater项。数据:这个"。
命名空间看起来像这样:
WinJS.Namespace.define("Navigation", {
dataBinding: WinJS.Binding.as({
navigations: new WinJS.Binding.List([]),
}),
NavigationItem: WinJS.Class.define(
function (element, options) {
this.element = element;
this.element.onclick = function (event) {
var item = this.winControl.data;
// Handle your onclick here
// for example:
item.clickHandler();
};
}
),
});
条目的添加方式如下:
Navigation.dataBinding.navigations.push(WinJS.Binding.as({
Name: "Home",
Page: "/pages/home/home.html",
// more... for example:
clickHandler: function() {
// Do Something
};
}));