exm-datatable/exm-paging.html at master · exmg/exm-datatable · GitHub

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<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../paper-icon-button/paper-icon-button.html">
<link rel="import" href="../paper-dropdown-menu/paper-dropdown-menu.html">
<link rel="import" href="../paper-menu/paper-menu.html">
<link rel="import" href="../paper-item/paper-item.html">
<link rel="import" href="../paper-styles/typography.html">
<link rel="import" href="exm-icons.html">

<!--
`exm-paging` is the paging controll element that can be positioned at the footer of the table.

```html
<table is="exm-datatable">
  <tbody is="exm-tbody" items='[[items]]'>
    ...
  </tbody>
</table>
<exm-paging total-items="[[totalItems]]" page-index="{{pageIndex}}" page-size="{{pageSize}}"></exm-paging>
```

### Styling
The following custom properties and mixins are also available for styling:

Custom property | Description | Default
----------------|-------------|----------
`--exm-paging-background-color` | Background color | `none`
`--exm-paging-text-color` | Text color | `87% black`
`--exm-paging-border-top-divider-color` | Divider color of the top border | `#DBDBDB`
`--exm-paging` | Mixin applied to host element | `{}`
`--exm-paging-icon-color` | Text color of table| `54% black`
`--exm-paging-icon-disabled-color` | Mixin applied to the datatable | `36% black`
`--exm-paging-page-information` | Mixin applied to page information container | `{}`

@element exm-paging
@demo demo/index.html
-->

<dom-module id="exm-paging">

  <style>
    :host {
      display: block;
      @apply(--paper-font-common-base);
      background: var(--exm-paging-background-color, none);
      color: var(--exm-paging-text-color, rgba(0,0,0,.87));
      font-size: 12px;
      font-weight: 500;
      height:56px;
      padding:0px 6px;
      border-top: 1px solid var(--exm-paging-border-top-divider-color, --divider-color);
      @apply(--layout-horizontal);
      @apply(--layout-end-justified);
      @apply(--layout-center);
      @apply(--exm-paging);
    }

    paper-dropdown-menu {
    --paper-input-container-input: {
      font-size: 12px;
      font-weight: 500;
    };
    --paper-dropdown-menu: {
      text-align: right;
      width: 68px;
    };
    --paper-dropdown-menu-icon: {
      color: var(--exm-paging-icon-color, rgba(0,0,0,.54));
    };
    --paper-icon-button: {
      color: var(--exm-paging-icon-color, rgba(0,0,0,.54));
    };
    --paper-icon-button-disabled: {
      color: var(--exm-paging-icon-disabled-color, rgba(0,0,0,.36));
    };
      --paper-input-container-underline-focus: { display: none; };
      --paper-input-container-underline-disabled: { display: none; };
      --paper-input-container-underline: { display: none; };
    }

    paper-icon-button {
    	margin: 0 4px;
    }

    .page-information {
      margin: 0 20px 0 32px;
      @apply(--exm-paging-page-information);
    }

    </style>

    <template>
      <span>Rows per page:</span>
      <paper-dropdown-menu no-label-float>
        <paper-menu class="dropdown-content" selected="{{pageSize}}" attr-for-selected="value">
          <paper-item value="5">5</paper-item>
          <paper-item value="10">10</paper-item>
          <paper-item value="25">25</paper-item>
          <paper-item value="50">50</paper-item>
          <paper-item value="100">100</paper-item>
        </paper-menu>
      </paper-dropdown-menu>
      <span class="page-information">
        [[_pageInfoStart(pageIndex, pageSize)]]
        -
        [[_pageInfoEnd(pageIndex,pageSize,totalItems)]] of [[totalItems]]
      </span>
      <paper-icon-button icon="exm-icons:chevron-left" on-tap="previousPage" disabled="[[_isFirstPage(pageIndex)]]"></paper-icon-button>
      <paper-icon-button icon="exm-icons:chevron-right" on-tap="nextPage" disabled="[[_isLastPage(pageIndex, pageSize, totalItems)]]"></paper-icon-button>
    </template>

    <script>
      Polymer({
        is: 'exm-paging',
        properties: {

          /**
          * Total items
          */
          totalItems: {
            type: Number,
            value: 0
          },

          /**
          * This property can be used to change the current visible page
          */
          pageIndex: {
            type: Number,
            notify: true,
            value: 0
          },

          /**
          * Set the page size of the table. Valid options are 5/10/25/50/100
          */
          pageSize: {
            type: Number,
            notify: true,
            value: 10
          }

        },

        _pageInfoStart: function(pageIndex, pageSize) {
          return pageIndex * pageSize;
        },

        _pageInfoEnd: function(pageIndex, pageSize, totalItems) {
          var end = (pageIndex + 1) * pageSize;
          return end < totalItems ? end : totalItems;
        },

        _isFirstPage: function() {
          return this.pageIndex < 1;
        },

        _isLastPage: function() {
          return ((this.pageIndex + 1) * this.pageSize) > this.totalItems;
        },

        nextPage: function() {
          this.pageIndex++;
        },

        previousPage: function() {
          this.pageIndex--;
        }
    	});
    </script>
</dom-module>