Thanks for your answer. I think need change understanding of polymer
solutions. They should not be similar to "old javascript" application.
среда, 29 октября 2014 г., 11:07:53 UTC+3 пользователь David Waterman
написал:
>
> Is there something about the template solution that is insufficient
> compared to what you're trying to do?
>
> You can imagine why it might be that what you're trying won't work, right?
> You're trying to add an attribute with moustache binding, but they are
> surely only evaluated and bound when the Polymer element is constructed. To
> do the same thing, you'd quite likely have to invoke some of the polymer
> internals to process the element you're adding, after it has been added.
>
> I suppose there might be a way to do this 'correctly', but I don't know it
> and no one else is answering so I imagine it is not possible. It's
> certainly not 'the polyer way' as I see it - I mean the moustache binding
> is, but dynamically adding such an attribute isn't something I've seen
> before.
>
> I would have done it something like this :
>
> <template bind if="{{ showModal }}">
> <div on-click="{{clickOnDynamicllyElement}} style="top:{{modalTop}};
> left:{{modalLeft}}">dynamicllyElement</div>
> </template>
> ...
> created: function() {
> this.showModal = false;
> this.modalTop = '0px';
> this.modalLeft = '0px';
> }
> showMdl: function(e,detail,sender){
> this.modalTop = e.layerY+'px';
> this.modalLeft = e.layerX+'px';
> this.showModal = true;
> },
>
> I've not tried it though, so ymmv.
>
> It occurs to me that it's also possible to do things with classes eg by
> toggling a class that has 'display: none;'
>
> Max.
>
> On Wed Oct 29 2014 at 07:52:43 Антон Мирошниченко <[email protected]
> <javascript:>> wrote:
>
>> templates has resolved this problem. But it is not dynamically behavior,
>> templates must be created in polyemer-element early.
>>
>> среда, 29 октября 2014 г., 10:39:55 UTC+3 пользователь David Waterman
>> написал:
>>>
>>> I think you basically "can't do that". Perhaps you can use a template
>>> bound to a property that is set in your showMdl function? ...along the
>>> lines of this :
>>>
>>> <https://www.polymer-project.org/docs/polymer/template.html#if>
>>>
>> On Wed Oct 29 2014 at 07:18:06 Антон Мирошниченко <[email protected]>
>>> wrote:
>>>
>> Thanks. But i suppose it is not polymer way. Meaby my question is not
>>>> correct. What if i need data-binding for a new element?
>>>>
>>>> среда, 29 октября 2014 г., 1:42:09 UTC+3 пользователь Claudius Nicolae
>>>> написал:
>>>>
>>>>> newElement.addEventListener('click', this.clickOnDynamicllyElement);
>>>>>
>>>>> learn js and dom
>>>>>
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