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[bugfix] Waterfall bind event repeated

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This commit is contained in:
陈嘉涵 2017-10-16 17:27:35 +08:00
parent a6906b06f1
commit 20e8145e1b
1 changed files with 7 additions and 2 deletions
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9
packages/waterfall/directive.js
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@ -6,6 +6,11 @@ const OFFSET = 300;
// 绑定事件到元素上
// 读取基本的控制变量
function doBindEvent() {
if (this.el[CONTEXT].binded) {
return;
}
this.el[CONTEXT].binded = true;
this.scrollEventListener = Utils.debounce(handleScrollEvent.bind(this), 200);
this.scrollEventTarget = Utils.getScrollEventTarget(this.el);
@ -52,7 +57,7 @@ function handleScrollEvent() {
needLoadMoreToLower = elementBottom - targetVisibleHeight < this.offset;
}
if (needLoadMoreToLower) {
this.cb['lower'] && this.cb['lower']({ target: scrollEventTarget, top: targetScrollTop });
this.cb.lower && this.cb.lower({ target: scrollEventTarget, top: targetScrollTop });
}
// 判断是否到了顶
@ -64,7 +69,7 @@ function handleScrollEvent() {
needLoadMoreToUpper = elementTop + this.offset > 0;
}
if (needLoadMoreToUpper) {
this.cb['upper'] && this.cb['upper']({ target: scrollEventTarget, top: targetScrollTop });
this.cb.upper && this.cb.upper({ target: scrollEventTarget, top: targetScrollTop });
}
}