聚合物紙張 - 對話框未顯示點擊鉻

Question

我正在使用最新的聚合物入門套件2.0 ，我在下面有這個代碼，並嘗試打開對話框，但在chrome中沒有任何反應（它在Firefox中正常工作）：

<paper-fab icon="zoom-in" onclick="dialog.open()"></paper-fab>
<paper-dialog id="dialog">
   <h3>text</h3>
   <div class="buttons">
     <paper-button dialog-confirm>Close</paper-button>
   </div>
</paper-dialog>

我已經進口了

<link rel="import" href="../bower_components/paper-dialog/paper-dialog.html">
<link rel="import" href="../bower_components/paper-dialog-behavior/paper-dialog-behavior.html">

在“my-app.html”中

並安裝：

bower install --save PolymerElements/paper-dialog
bower install --save PolymerElements/paper-dialog-behavior

關於如何解決這個問題的任何想法？

左 - Firefox | 對 - Chrome / opera

更新：

我有默認的聚合物入門套件2.0項目，並在頁面中添加了一些元素。

我正在使用polymer serve將頁面轉換為localhost：8080

我剛剛創建了另一個頁面：src / my-testpage.html

並將<my-testpage name="testpage"></my-testpage>到“my-app.html”中的鐵頁面

初始代碼：

<!--
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->

<link rel="import" href="../bower_components/polymer/polymer.html">
<link rel="import" href="shared-styles.html">

<dom-module id="my-testpage">
  <template>
    <style include="shared-styles">
      :host {
        display: block;
        padding: 10%;
        padding-left: 20%;
        padding-right: 20%;
      }
    </style>

    <paper-fab icon="zoom-in" onclick="dialog.open()"></paper-fab>
    <paper-dialog id="dialog">
       <h3>text</h3>
       <div class="buttons">
         <paper-button dialog-confirm>Close</paper-button>
       </div>
    </paper-dialog>
  </template>

  <script>
    Polymer({
      is: 'my-testpage'
    });
  </script>
</dom-module>

結果：適用於Firefox和EDGE，在基於鉻的瀏覽器中不起作用 - Chrome / Opera：

控制台顯示：

testpage:1 
Uncaught ReferenceError: dialog is not defined
  onclick @ testpage:1

建議的解決方案1：

請改用： onclick="document.getElementById('dialog').open()

<!--
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->

<link rel="import" href="../bower_components/polymer/polymer.html">
<link rel="import" href="shared-styles.html">

<dom-module id="my-testpage">
  <template>
    <style include="shared-styles">
      :host {
        display: block;
        padding: 10%;
        padding-left: 20%;
        padding-right: 20%;
      }
    </style>

    <paper-fab icon="zoom-in" onclick="document.getElementById('dialog').open()"></paper-fab>
    <paper-dialog id="dialog">
       <h3>text</h3>
       <div class="buttons">
         <paper-button dialog-confirm>Close</paper-button>
       </div>
    </paper-dialog>
  </template>

  <script>
    Polymer({
      is: 'my-testpage'
    });
  </script>
</dom-module>

結果：適用於Firefox和EDGE，在基於鉻的瀏覽器中不起作用 - Chrome / Opera： 控制台顯示：

testpage:1 
Uncaught TypeError: Cannot read property 'open' of null
  onclick @ 

建議的解決方案2：

<!--
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->

<link rel="import" href="../bower_components/polymer/polymer.html">
<link rel="import" href="shared-styles.html">

<dom-module id="my-testpage">
  <template is="dom-bind" id="t">
    <style include="shared-styles">
      :host {
        display: block;
        padding: 10%;
        padding-left: 20%;
        padding-right: 20%;
      }
    </style>
       <paper-fab icon="zoom-in" on-tap="openDialog"></paper-fab>
       <paper-dialog id="dialog">
          <h3>text</h3>
          <div class="buttons">
            <paper-button dialog-confirm>Close</paper-button>
          </div>
       </paper-dialog>
    <script>
       var t = document.getElementById('t');
       t.openDialog = function() {
         t.$.dialog.open();
       };
    </script>

  </template>

  <script>
    Polymer({
      is: 'my-testpage'
    });
  </script>
</dom-module>

結果：

    .polymer-micro.html.js:265:1
    [my-testpage::_createEventHandler]: listener method `openDialog` not defined

Answer 1

看起來您可能依賴於Window對象上的命名訪問 ， 應該避免這種訪問 。

相反，請使用document.getElementById('dialog') ，如以下代碼段所示：

 <head> <base href="https://polygit.org/polymer+1.9.3/components/"> <script src="webcomponentsjs/webcomponents-lite.js"></script> <link rel="import" href="polymer/polymer.html"> <link rel="import" href="iron-icons/iron-icons.html"> <link rel="import" href="paper-button/paper-button.html"> <link rel="import" href="paper-fab/paper-fab.html"> <link rel="import" href="paper-dialog/paper-dialog.html"> </head> <body> <paper-fab icon="zoom-in" onclick="document.getElementById('dialog').open()"></paper-fab> <paper-dialog id="dialog"> <h3>text</h3> <div class="buttons"> <paper-button dialog-confirm>Close</paper-button> </div> </paper-dialog> </body> 

codepen

或者，您可以使用此代碼段中顯示的tap -handler：

 <head> <base href="https://polygit.org/polymer+1.9.3/components/"> <script src="webcomponentsjs/webcomponents-lite.js"></script> <link rel="import" href="polymer/polymer.html"> <link rel="import" href="iron-icons/iron-icons.html"> <link rel="import" href="paper-button/paper-button.html"> <link rel="import" href="paper-fab/paper-fab.html"> <link rel="import" href="paper-dialog/paper-dialog.html"> </head> <body unresolved> <template is="dom-bind" id="t"> <paper-fab icon="zoom-in" on-tap="openDialog"></paper-fab> <paper-dialog id="dialog"> <h3>text</h3> <div class="buttons"> <paper-button dialog-confirm>Close</paper-button> </div> </paper-dialog> </template> <script> var t = document.getElementById('t'); t.openDialog = function() { t.$.dialog.open(); }; </script> </body> 

codepen

更新您的Polymer元素代碼應如下所示：

<dom-module id="my-testpage">
  <template>
    ...
    <paper-fab icon="zoom-in" on-tap="openDialog"></paper-fab>
    <paper-dialog id="dialog">
        <h3>text</h3>
        <div class="buttons">
          <paper-button dialog-confirm>Close</paper-button>
        </div>
    </paper-dialog>
  </template>

  <script>
    Polymer({
      is: 'my-testpage',

      openDialog: function() {
        this.$.dialog.open();
      }
    });
  </script>
</dom-module>