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<link rel="import" href="../../../bower_components/polymer/polymer.html">
<link rel="import" href="../../../behaviors/base-url-behavior/base-url-behavior.html">
<link rel="import" href="../../../behaviors/gr-url-encoding-behavior.html">
<link rel="import" href="../../../behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior.html">
<link rel="import" href="../../../behaviors/rest-client-behavior/rest-client-behavior.html">
<link rel="import" href="../../../bower_components/iron-dropdown/iron-dropdown.html">
<link rel="import" href="../../shared/gr-button/gr-button.html">
<link rel="import" href="../../shared/gr-fixed-panel/gr-fixed-panel.html">
<link rel="import" href="../../shared/gr-rest-api-interface/gr-rest-api-interface.html">
<link rel="import" href="../../shared/gr-select/gr-select.html">
<link rel="import" href="../gr-diff-cursor/gr-diff-cursor.html">
<link rel="import" href="../gr-diff-preferences/gr-diff-preferences.html">
<link rel="import" href="../gr-diff/gr-diff.html">
<link rel="import" href="../gr-patch-range-select/gr-patch-range-select.html">
<link rel="import" href="../../../styles/shared-styles.html">

<dom-module id="gr-diff-view">
  <template>
    <style include="shared-styles">
      :host {
        background-color: var(--view-background-color);
      }
      gr-diff {
        border: none;
      }
      gr-fixed-panel {
        background-color: #fff;
        border-bottom: 1px #eee solid;
        z-index: 1;
      }
      header,
      .subHeader {
        align-items: center;
        display: flex;
        justify-content: space-between;
      }
      header {
        padding: .75em var(--default-horizontal-margin);
      }
      .patchRangeLeft {
        display: flex;
      }
      .navLink:not([href]),
      .downloadLink:not([href]) {
        color: #999;
      }
      .navLinks {
        white-space: nowrap;
      }
      .reviewed {
        display: inline-block;
        margin: 0 .25em;
        vertical-align: .15em;
      }
      .jumpToFileContainer {
        display: inline-block;
      }
      .mobile {
        display: none;
      }
      .downArrow {
        display: inline-block;
        font-size: .6em;
        vertical-align: middle;
      }
      .dropdown-trigger {
        color: #00e;
        cursor: pointer;
        padding: 0;
      }
      iron-dropdown {
        position: absolute;
      }
      .dropdown-content {
        background-color: #fff;
        box-shadow: 0 1px 5px rgba(0, 0, 0, .3);
      }
      .dropdown-content a {
        cursor: pointer;
        display: block;
        font-weight: normal;
        padding: .3em .5em;
      }
      .dropdown-content a:before {
        color: #ccc;
        content: attr(data-key-nav);
        display: inline-block;
        margin-right: .5em;
        width: .3em;
      }
      .dropdown-content a:hover {
        background-color: #00e;
        color: #fff;
      }
      .dropdown-content a[selected] {
        color: #000;
        font-weight: bold;
        pointer-events: none;
        text-decoration: none;
      }
      .dropdown-content a[selected]:hover {
        background-color: #fff;
        color: #000;
      }
      gr-button {
        font: inherit;
        padding: .3em 0;
        text-decoration: none;
      }
      .loading {
        padding: 0 var(--default-horizontal-margin) 1em;
        color: #666;
      }
      .subHeader {
        flex-wrap: wrap;
        margin: 0 var(--default-horizontal-margin) .75em;
      }
      .subHeader > div {
        margin-top: .25em;
      }
      .prefsButton {
        text-align: right;
      }
      .separator {
        margin: 0 .25em;
      }
      @media screen and (max-width: 50em) {
        header {
          padding: .5em var(--default-horizontal-margin);
        }
        .dash {
          display: none;
        }
        .desktop {
          display: none;
        }
        .fileNav {
          align-items: flex-start;
          display: flex;
          margin: 0 .25em;
        }
        .fullFileName {
          display: block;
          font-size: .9em;
          font-style: italic;
          min-width: 50%;
          padding: 0 .1em;
          text-align: center;
          width: 100%;
          word-wrap: break-word;
        }
        .reviewed {
          vertical-align: -.1em;
        }
        .mobileJumpToFileContainer {
          display: block;
          width: 100%;
        }
        .mobileJumpToFileContainer select {
          width: 100%;
        }
        .mobileNavLink {
          color: #000;
          font-size: 1.5em;
          font-weight: bold;
          text-decoration: none;
        }
        .mobileNavLink:not([href]) {
          color: #bbb;
        }
      }
    </style>
    <gr-fixed-panel
        keep-on-scroll
        ready-for-measure="[[!_loading]]">
      <header>
        <h3>
          <a href$="[[_computeChangePath(_changeNum, _patchRange.*, _change.revisions)]]">
            [[_changeNum]]</a><span>:</span>
          <span>[[_change.subject]]</span>
          <span class="dash">—</span>
          <input id="reviewed"
                 class="reviewed"
                 type="checkbox"
                 on-change="_handleReviewedChange"
                 hidden$="[[!_loggedIn]]" hidden>
          <div class="jumpToFileContainer desktop">
            <gr-button link class="dropdown-trigger" id="trigger" on-tap="_showDropdownTapHandler">
              <span>[[_computeFileDisplayName(_path)]]</span>
              <span class="downArrow">&#9660;</span>
            </gr-button>
            <!-- *-align="" to disable iron-dropdown's element positioning. -->
            <iron-dropdown id="dropdown"
                allow-outside-scroll
                vertical-align=""
                horizontal-align="">
              <div class="dropdown-content">
                <template
                    is="dom-repeat"
                    items="[[_fileList]]"
                    as="path"
                    initial-count="75">
                  <a href$="[[_computeDiffURL(_changeNum, _patchRange.*, path)]]"
                     selected$="[[_computeFileSelected(path, _path)]]"
                     data-key-nav$="[[_computeKeyNav(path, _path, _fileList)]]"
                     on-tap="_handleFileTap">[[_computeFileDisplayName(path)]]</a>
                </template>
              </div>
            </iron-dropdown>
          </div>
          <div class="mobileJumpToFileContainer mobile">
            <select on-change="_handleMobileSelectChange">
              <template is="dom-repeat" items="[[_fileList]]" as="path">
                <option
                    value$="[[path]]"
                    selected$="[[_computeFileSelected(path, _path)]]">
                  [[_computeTruncatedFileDisplayName(path)]]
                </option>
              </template>
            </select>
          </div>
        </h3>
        <div class="navLinks desktop">
          <a class="navLink"
             href$="[[_computeNavLinkURL(_path, _fileList, -1, 1)]]">Prev</a>
          /
          <a class="navLink"
             href$="[[_computeUpURL(_changeNum, _patchRange, _change, _change.revisions)]]">Up</a>
          /
          <a class="navLink"
             href$="[[_computeNavLinkURL(_path, _fileList, 1, 1)]]">Next</a>
        </div>
      </header>
      <div class="subHeader">
        <div class="patchRangeLeft">
          <gr-patch-range-select
              path="[[_path]]"
              change-num="[[_changeNum]]"
              patch-range="[[_patchRange]]"
              files-weblinks="[[_filesWeblinks]]"
              available-patches="[[_computeAvailablePatches(_change.revisions)]]"
              revisions="[[_change.revisions]]">
          </gr-patch-range-select>
          <span class="download desktop">
            <span class="separator">/</span>
            <a class="downloadLink"
               href$="[[_computeDownloadLink(_changeNum, _patchRange, _path)]]">
              Download
            </a>
          </span>
        </div>
        <div>
          <select
              id="modeSelect"
              is="gr-select"
              bind-value="{{changeViewState.diffMode}}"
              hidden$="[[_computeModeSelectHidden(_isImageDiff)]]">
            <option value="SIDE_BY_SIDE">Side By Side</option>
            <option value="UNIFIED_DIFF">Unified</option>
          </select>
          <span id="diffPrefsContainer"
              hidden$="[[_computePrefsButtonHidden(_prefs, _loggedIn)]]" hidden>
            <span class="preferences desktop">
              <span
                  hidden$="[[_computeModeSelectHidden(_isImageDiff)]]">/</span>
              <gr-button link
                  class="prefsButton"
                  on-tap="_handlePrefsTap">Preferences</gr-button>
            </span>
          </span>
        </div>
      </div>
      <div class="fileNav mobile">
        <a class="mobileNavLink"
           href$="[[_computeNavLinkURL(_path, _fileList, -1, 1)]]">&lt;</a>
        <div class="fullFileName mobile">[[_computeFileDisplayName(_path)]]
        </div>
        <a class="mobileNavLink"
            href$="[[_computeNavLinkURL(_path, _fileList, 1, 1)]]">&gt;</a>
      </div>
    </gr-fixed-panel>
    <div class="loading" hidden$="[[!_loading]]">Loading...</div>
    <div hidden hidden$="[[_loading]]">
      <gr-diff-preferences
          id="diffPreferences"
          prefs="{{_prefs}}"
          local-prefs="{{_localPrefs}}"></gr-diff-preferences>
      <gr-diff
          id="diff"
          hidden
          hidden$="[[_loading]]"
          is-image-diff="{{_isImageDiff}}"
          files-weblinks="{{_filesWeblinks}}"
          change-num="[[_changeNum]]"
          patch-range="[[_patchRange]]"
          path="[[_path]]"
          prefs="[[_prefs]]"
          project-config="[[_projectConfig]]"
          view-mode="[[_diffMode]]"
          on-line-selected="_onLineSelected">
      </gr-diff>
    </div>
    <gr-rest-api-interface id="restAPI"></gr-rest-api-interface>
    <gr-storage id="storage"></gr-storage>
    <gr-diff-cursor id="cursor"></gr-diff-cursor>
  </template>
  <script src="gr-diff-view.js"></script>
</dom-module>