polygerrit-ui/app/elements/gr-patch-range-select.html

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Copyright (C) 2015 The Android Open Source Project

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you may not use this file except in compliance with the License.
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<link rel="import" href="../bower_components/polymer/polymer.html">

<dom-module id="gr-patch-range-select">
  <template>
    <style>
      :host {
        display: block;
      }
      .patchRange {
        display: inline-block;
      }
    </style>
    Patch set:
    <span class="patchRange">
      <select id="leftPatchSelect" on-change="_handlePatchChange">
        <option value="PARENT"
            selected$="[[_computeLeftSelected('PARENT', patchRange)]]">Base</option>
        <template is="dom-repeat" items="{{availablePatches}}" as="patchNum">
          <option value$="[[patchNum]]"
              selected$="[[_computeLeftSelected(patchNum, patchRange)]]"
              disabled$="[[_computeLeftDisabled(patchNum, patchRange)]]">[[patchNum]]</option>
        </template>
      </select>
    </span>
    &rarr;
    <span class="patchRange">
      <select id="rightPatchSelect" on-change="_handlePatchChange">
        <template is="dom-repeat" items="{{availablePatches}}" as="patchNum">
          <option value$="[[patchNum]]"
              selected$="[[_computeRightSelected(patchNum, patchRange)]]"
              disabled$="[[_computeRightDisabled(patchNum, patchRange)]]">[[patchNum]]</option>
        </template>
      </select>
    </span>
  </template>
  <script>
  (function() {
    'use strict';

    Polymer({
      is: 'gr-patch-range-select',

      properties: {
        availablePatches: Array,
        changeNum: String,
        patchRange: Object,
        path: String,
      },

      _handlePatchChange: function(e) {
        var leftPatch = this.$.leftPatchSelect.value;
        var rightPatch = this.$.rightPatchSelect.value;
        var rangeStr = rightPatch;
        if (leftPatch != 'PARENT') {
          rangeStr = leftPatch + '..' + rangeStr;
        }
        page.show('/c/' + this.changeNum + '/' + rangeStr + '/' + this.path);
      },

      _computeLeftSelected: function(patchNum, patchRange) {
        return patchNum == patchRange.basePatchNum;
      },

      _computeRightSelected: function(patchNum, patchRange) {
        return patchNum == patchRange.patchNum;
      },

      _computeLeftDisabled: function(patchNum, patchRange) {
        return parseInt(patchNum, 10) >= parseInt(patchRange.patchNum, 10);
      },

      _computeRightDisabled: function(patchNum, patchRange) {
        if (patchRange.basePatchNum == 'PARENT') { return false; }
        return parseInt(patchNum, 10) <= parseInt(patchRange.basePatchNum, 10);
      },
    });
  })();
  </script>
</dom-module>