我试图通过封装在 View 中的 ScrollContainer
来传输鼠标点击,但不知何故没有发生任何事情。我刚刚开始玩 Famo.us,所以也许我在这里遗漏了一些明显的东西。我可以直接从 ScrollContainer 中包含的表面进行管道传输,但我不确定这是否是这样做的方法。有什么想法吗?
链接到可运行的 jsFiddle 演示:
以及代码本身:
define('main', function (require, exports, module) {
var Engine = require('famous/core/Engine');
var Surface = require('famous/core/Surface');
var Transform = require('famous/core/Transform');
var View = require('famous/core/View');
var Scrollview = require('famous/views/ScrollContainer');
var context = Engine.createContext();
var mainview = new View({
size: [500, 500]
});
var scrollview = new Scrollview({
scrollview: {direction:0, size: [undefined, 300]}
});
var surfaces = [];
scrollview.sequenceFrom(surfaces);
for (var i = 0; i < 40; i++) {
var surface = new Surface({
content: "Surface: " + (i + 1),
size: [undefined, 200],
properties: {
backgroundColor: "hsl(" + (i * 360 / 40) + ", 100%, 50%)",
lineHeight: "200px",
textAlign: "center"
}
});
surface.pipe(scrollview);
surfaces.push(surface);
}
mainview._eventInput.on('click', function(){
console.log('click');
});
scrollview.pipe(mainview);
mainview.add(scrollview);
context.add(mainview);
});
最佳答案
在撰写本文时,ScrollContainer 没有自己的事件处理程序。它使用 event handlers from the ScrollView that it contains (scrollcontainer.scrollview
)。 ScrollContainer 有一个 ContainerSurface,它订阅 scrollcontainer.scrollview
的事件,并且是隐藏 ScrollView 溢出的 DOM 元素。
The below code in a new jsFiddle显示设置 ContainerSurface 的正确方法。您不需要 mainview
来管理您的事件。
您有几个选择:
- 将表面事件通过管道传输到 ScrollView 事件输出(如下所示)并在 ScrollView 上监听事件
- 或通过管道将表面事件传送到容器
surface.pipe(scrollcontainer.container);
并监听来自容器的事件scrollcontainer.container.on('click', .. .
更正的代码:
define('main', function (require, exports, module) {
var Engine = require('famous/core/Engine');
var Surface = require('famous/core/Surface');
var Transform = require('famous/core/Transform');
var View = require('famous/core/View');
var ScrollContainer = require('famous/views/ScrollContainer');
var Scrollview = require('famous/views/Scrollview');
var Utility = require('famous/utilities/Utility');
var context = Engine.createContext();
var scrollcontainer = new ScrollContainer({
scrollview: {
direction: Utility.Direction.Y
}
});
scrollcontainer.container.setSize([500, 500]);
var surfaces = [];
for (var i = 0; i < 40; i++) {
var surface = new Surface({
content: "Surface: " + (i + 1),
size: [undefined, 200],
properties: {
backgroundColor: "hsl(" + (i * 360 / 40) + ", 100%, 50%)",
lineHeight: "200px",
textAlign: "center"
}
});
surface.pipe(scrollcontainer.scrollview._eventOutput);
surfaces.push(surface);
}
scrollcontainer.scrollview.on('click', function (e) {
console.log('click ' + e.target.innerText);
});
scrollcontainer.sequenceFrom(surfaces);
context.add(scrollcontainer);
});
替代选项:
for (var i = 0; i < 40; i++) {
var surface = new Surface({
content: "Surface: " + (i + 1),
size: [undefined, 200],
properties: {
backgroundColor: "hsl(" + (i * 360 / 40) + ", 100%, 50%)",
lineHeight: "200px",
textAlign: "center"
}
});
surface.pipe(scrollcontainer.container);
surfaces.push(surface);
}
scrollcontainer.container.on('click', function (e) {
console.log('click ' + e.target.innerText);
});
<强> jsFiddle to show event pipe to a View
for (var i = 0; i < 40; i++) {
var surface = new Surface({
content: "Surface: " + (i + 1),
size: [undefined, 200],
properties: {
backgroundColor: "hsl(" + (i * 360 / 40) + ", 100%, 50%)",
lineHeight: "200px",
textAlign: "center"
}
});
surface.pipe(scrollcontainer.container);
surfaces.push(surface);
}
var mainview = new View({size: [500, 500]});
mainview.on('click', function (e) {
console.log('click ' + e.target.innerText);
});
scrollcontainer.sequenceFrom(surfaces);
scrollcontainer.container.pipe(mainview._eventOutput);
context.add(scrollcontainer).add(mainview);
关于javascript - 从 ScrollContainer 传递事件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25354163/