用QucikView扩展TooltipBase会导致错误:"sap.m.Popover ID由尚未呈现的控件打开." [英] Extending TooltipBase with QucikView cause error: 'sap.m.Popover id is opened by a control which isn't rendered yet."

问题描述

我通过创建与附加在某些sap.ui.core.Icon上的sap.m.QuickView的鼠标悬停事件处理扩展了sap.ui.core.TooltipBase:

I extended sap.ui.core.TooltipBase with mouseover event handling with creation of sap.m.QuickView which is attached to some sap.ui.core.Icon:

    sap.ui.define(function () {
    "use strict";
    return sap.ui.core.TooltipBase.extend("abc.reuseController.TooltipBase", { 
            metadata: {
                events: {
                    "onmouseover" : {}  
                }
            },
            oView: null,

            setView : function(view){
                this.oView = view;
            },

//          the hover event handler, it is called when the Button is hovered - no event registration required
            onmouseover : function() {
                this._createQuickView();
            },

            _createQuickView: function(){
                var view = this.oView;
                alert("Event mouseover.");

//              create QuickViewGroupElement
                var oQuickViewGroupElement = new sap.m.QuickViewGroupElement();
                oQuickViewGroupElement.setLabel("item");
                oQuickViewGroupElement.setValue("value");

//              create QuickViewGroup
                var oQuickViewGroup = new sap.m.QuickViewGroup();
                oQuickViewGroup.addElement(oQuickViewGroupElement);

//              create QuickViewPage
                var oQuickViewPage = new sap.m.QuickViewPage();
                oQuickViewPage.addGroup(oQuickViewGroup);

//              create QuickView
                var oQuickView = new sap.m.QuickView();
                oQuickView.addPage(oQuickViewPage); 

//              connect QuickView with Button
                oQuickView.openBy(view.byId("filterButton"));                           
            },
        });  
});

在我的控制器中，我使用id ="filterButton"将TooltipBase添加到了sap.ui.core.Icon中:

In my controller I added TooltipBase to sap.ui.core.Icon with id="filterButton":

var oTooltipBase = new TooltipBase();           
oTooltipBase.setView(this.getView());   

var oIconFilterButton = this.byId("filterButton");
oIconFilterButton.setTooltip(oTooltipBase);

当我将鼠标悬停在xml的ChartContainer上的该图标上时，我希望显示QuickView:

I would like to get QuickView to be shown when I hover over this Icon, which is placed on the ChartContainer in the xml:

<suite:customIcons>                 
   <core:Icon id="filterButton" src="sap-icon://drop-down-list" press="onFilterDialogOpen" width="2em"/> 
</suite:customIcons>

将鼠标悬停在此图标上效果很好，alert("Event mouseover.").如图所示，还正确创建了QuickView(我在sap.m.Button上尝试了相同的代码)，但是在sap.ui.core.TooltipBase.extend的这一行出现错误:

Hovering over this icon works well, alert("Event mouseover."); is shown, also QuickView is created correctly (I tried the same code on sap.m.Button), but I get error on this line in the sap.ui.core.TooltipBase.extend:

oQuickView.openBy(view.byId("filterButton")); 

它来自这个树液库:

这行d = this._getOpenByDomRef();返回null，但为什么我不知道:

And this line d = this._getOpenByDomRef(); returns null, but why I have no clue:

我不确定是否有人解决了这个问题，但是如果是，我真的会很高兴.

I am not sure if here is somenone who met this issue, but if yes I would be really glad.

推荐答案

您快到了.只是一个问题.

You are almost there. Just one issue.

正如我在以下问题中提到的: exting-sap-ui-core-icon-with-hover-event-or-mouseover ，您的自定义图标将被转换为OverflowButton:

As I mentioned in this below question: extending-sap-ui-core-icon-with-hover-event-or-mouseover, your custom Icon is getting converted into the OverflowButton:

sap.suite.ui.commons.ChartContainer.prototype._addButtonToCustomIcons = function(i) {
    var I = i;
    var s = I.getTooltip();
    var b = new sap.m.OverflowToolbarButton({
        icon: I.getSrc(),
        text: s,
        tooltip: s,
        type: sap.m.ButtonType.Transparent,
        width: "3rem",
        press: [{
            icon: I
        }, this._onOverflowToolbarButtonPress.bind(this)]
    });
    this._aCustomIcons.push(b);
}

您可能会错过的事实是没有使用自定义图标的ID，而是为溢出按钮"创建了一个新的自动生成的ID(错误).

What you probably missed is the fact that Id of your custom Icon is not used and a new auto-generated Id is created for Overflow Button (bad).

因此，溢出"按钮的ID不是:filterButton而是一些自动生成的ID.

Hence, the Overflow button id is not : filterButton but some auto-generated Id.

这是解决方案:在自定义控件中打开QuickView的位置更改代码:

Here is the solution: Change the code where you are opening QuickView in your custom control:

先前的代码:

//              connect QuickView with Button
            oQuickView.openBy(view.byId("filterButton"));

正确的代码:

//              connect QuickView with Button
                oQuickView.openBy(this.getParent());

在代码中:

 //              connect QuickView with Button
                    oQuickView.openBy(this.getParent());

这是指您的自定义工具提示.当工具提示传递给OverflowButton(上面的代码)时，工具提示的父对象是溢出"按钮.因此，代码为:this.getParent().

this refers to your custom tooltip. As tooltip is passed along to OverflowButton ( code above), tooltip parent is The overflow button. Hence, the code: this.getParent().

此外，我建议您将视图的位置设置为底部". (默认是正确的，这会导致UI问题.)

Also, I would suggest you to set the placement of your view to 'Bottom'. ( default is right and it was causing UI issues).

//              create QuickView
                var oQuickView = new sap.m.QuickView({placement:"Bottom"});
                oQuickView.addPage(oQuickViewPage);

这篇关于用QucikView扩展TooltipBase会导致错误:"sap.m.Popover ID由尚未呈现的控件打开."的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！