我已实现了一次滑动以显示Oracle JET组件。
以下是我的Js代码
this.action = ko.observable("No action taken yet");
this.handleReady = function()
{
// register swipe to reveal for all new list items
$("#listview").find(".item-marker").each(function(index)
{
var item = $(this);
var id = item.prop("id");
var startOffcanvas = item.find(".oj-offcanvas-start").first();
var endOffcanvas = item.find(".oj-offcanvas-end").first();
// setup swipe actions
oj.SwipeToRevealUtils.setupSwipeActions(startOffcanvas);
oj.SwipeToRevealUtils.setupSwipeActions(endOffcanvas);
// make sure listener only registered once
endOffcanvas.off("ojdefaultaction");
endOffcanvas.on("ojdefaultaction", function()
{
self.handleDefaultAction(item);
});
});
};
this.handleDestroy = function()
{
// register swipe to reveal for all new list items
$("#listview").find(".item-marker").each(function(index)
{
var startOffcanvas = $(this).find(".oj-offcanvas-start").first();
var endOffcanvas = $(this).find(".oj-offcanvas-end").first();
oj.SwipeToRevealUtils.tearDownSwipeActions(startOffcanvas);
oj.SwipeToRevealUtils.tearDownSwipeActions(endOffcanvas);
});
};
this.handleMenuBeforeOpen = function(event, ui)
{
var target = event.originalEvent.target;
var context = $("#listview").ojListView("getContextByNode", target);
if (context != null)
{
self.currentItem = $("#"+context['key']);
}
else
{
self.currentItem = null;
}
};
this.handleMenuItemSelect = function(event, ui)
{
var id = ui.item.prop("id");
if (id == "read")
self.handleRead();
else if (id == "more1" || id == "more2")
self.handleMore();
else if (id == "tag")
self.handleFlag();
else if (id == "delete")
self.handleTrash();
};
this.closeToolbar = function(which, item)
{
var toolbarId = "#"+which+"_toolbar_"+item.prop("id");
var drawer = {"displayMode": "push", "selector": toolbarId};
oj.OffcanvasUtils.close(drawer);
};
this.handleAction = function(which, action, event)
{
if (event != null)
{
self.currentItem = $(event.target).closest(".item-marker");
// offcanvas won't be open for default action case
if (action != "default")
self.closeToolbar(which, self.currentItem);
}
if (self.currentItem != null)
self.action("Handle "+action+" action on: "+self.currentItem.prop("id"));
};
this.handleRead = function(data, event)
{
self.handleAction("first", "read", event);
};
this.handleMore = function(data, event)
{
self.handleAction("second", "more", event);
};
this.handleFlag = function(data, event)
{
self.handleAction("second", "Rejected", event);
};
this.handleTrash = function(data, event)
{
self.handleAction("second", "Accepted", event);
self.remove(self.currentItem);
};
this.handleDefaultAction = function(item)
{
self.currentItem = item;
self.handleAction("second", "default");
self.remove(item);
};
this.remove = function(item)
{
// unregister swipe to reveal for removed item
var startOffcanvas = item.find(".oj-offcanvas-start").first();
var endOffcanvas = item.find(".oj-offcanvas-end").first();
oj.SwipeToRevealUtils.tearDownSwipeActions(startOffcanvas);
oj.SwipeToRevealUtils.tearDownSwipeActions(endOffcanvas);
alert(JSON.stringify(self.allItems()));
alert(item.toString());
self.allItems.remove(function(current)
{
return (current.id == item.prop("id"));
});
};
}
return PeopleViewModel;
});
HTML code：
<ul id="listview"
data-bind="ojComponent: {component: 'ojListView',
data: listViewDataSource,
item: {template: 'peoplelist_template'},
selectionMode: 'single',
ready: handleReady,
destroy: handleDestroy,
optionChange: changeHandler,
rootAttributes: {style: 'width:100%;height:100vh;overflow:auto; margin-top: 5px'},
scrollPolicy: 'loadMoreOnScroll',
scrollPolicyOptions: {fetchSize: 10}}">
</ul>
<script id="peoplelist_template">
<div style="padding:0.8571rem">
<div class="oj-flex oj-flex-items-pad">
<div class="oj-flex-item oj-lg-4 oj-md-4">
<img alt="employee image" class="demo-circular demo-employee-photo" style="float:left;" data-bind="attr: {src: $parent.getPhoto($data['name'])}"/>
<h2 class="demo-employee-name" data-bind="text: $data['from']"></h2>
<div class="demo-employee-title" data-bind="text: $data['title']"></div>
<div class="demo-employee-dept" data-bind="text: $data['deptName']"></div>
</div>
<div style="line-height: 1.5em; height: 3em; overflow: hidden; text-overflow: ellipsis" class="oj-text-sm oj-text-secondary-color" data-bind="text: $data['content']"></div>
</div>
</div>
<div tabIndex="-1" data-bind="attr: {id: 'first_toolbar_'+empId}" class="oj-offcanvas-start" style="width:75px">
<div data-bind="click:$parent.handleRead">
<div class="oj-flex-bar" style="height:100%">
<div class="oj-flex-bar-center-absolute">
<div class="oj-flex oj-sm-flex-direction-column">
<div title=".demo-library-icon-24" role="img" class="oj-flex-item demo-library-icon-24 demo-icon-font-24"></div>
<div style="padding-top: 10px" class="oj-flex-item">Read</div>
</div>
</div>
</div>
</div>
</div>
<div tabIndex="-1" data-bind="attr: {id: 'second_toolbar_'+empId}" class="oj-offcanvas-end" style="width:225px">
<div class="oj-swipetoreveal-more" data-bind="click: $parent.handleMore">
<div class="oj-flex-bar" style="height:100%">
<div class="oj-flex-bar-center-absolute">
<div class="oj-flex oj-sm-flex-direction-column">
<div title=".demo-library-icon-24" role="img" class="oj-flex-item fa fa-bars"></div>
<div style="padding-top: 10px" class="oj-flex-item">More</div>
</div>
</div>
</div>
</div>
<div style="background-color:#b81900" data-bind="click: $parent.handleFlag" class="oj-swipetoreveal-flag">
<div class="oj-flex-bar" style="height:100%">
<div class="oj-flex-bar-center-absolute">
<div class="oj-flex oj-sm-flex-direction-column">
<div title=".demo-library-icon-24" role="img" class="oj-flex-item fa fa-times"></div>
<div style="padding-top: 10px" class="oj-flex-item">Reject</div>
</div>
</div>
</div>
</div>
<div style="background-color:#009638" data-bind="click: $parent.handleTrash" class="oj-swipetoreveal-alert oj-swipetoreveal-default">
<div class="oj-flex-bar" style="height:100%">
<div class="oj-flex-bar-center-absolute">
<div class="oj-flex oj-sm-flex-direction-column">
<div title=".demo-library-icon-24" role="img" class="oj-flex-item fa fa-check"></div>
<div style="padding-top: 10px" class="oj-flex-item">Approve</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</li>
</script>
实际问题是批准时不会删除listItem。（Approve div调用Handletrash函数）。
我不知道我哪里出错了？谁能帮我解决这个问题？
答案 0 :(得分：0)
这里有很多代码，这使得很难理解一切都打算做什么，并且更难确定问题可能是什么。这就是为什么最好制作一个Minimal, Complete, and Verifiable Example。此外，在删除所有不会直接影响您的问题的代码的过程中，您可以自己解决。
我在你的代码中注意到你有很多jQuery调用。那是一个重要的红旗。您与Knockout的合同是您将操纵您的数据模型，Knockout将使用它来控制DOM。如果你“落后于Knockout的背部”并自己操纵DOM，你和Knockout将会踩到彼此的脚趾。
Knockout提供了两种方法来自定义操作DOM的方式：animated transitions和custom bindings。 “滑动以显示”声音就像过渡到我，但看着你的代码，它似乎涉及整个生命周期，所以我认为你需要制作一个自定义绑定处理程序。
所有DOM操作代码都应该在绑定处理程序中，并且所有这些代码都应该限制在绑定处理程序的element内。应该没有文档范围的选择器。