<!--
Copyright (C) 2015 The Android Open Source Project

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

<link rel="import" href="../../../bower_components/polymer/polymer.html">
<link rel="import" href="../../../bower_components/iron-dropdown/iron-dropdown.html">
<link rel="import" href="../../../behaviors/gr-url-encoding-behavior.html">
<link rel="import" href="../../../behaviors/keyboard-shortcut-behavior.html">
<link rel="import" href="../../../behaviors/rest-client-behavior.html">
<link rel="import" href="../../shared/gr-button/gr-button.html">
<link rel="import" href="../../shared/gr-overlay/gr-overlay.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/gr-diff.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-patch-range-select/gr-patch-range-select.html">

<dom-module id="gr-diff-view">
  <template>
    <style>
      :host {
        background-color: var(--view-background-color);
        display: block;
      }
      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;
      }
      .reviewed {
        display: inline-block;
        margin: 0 .25em;
        vertical-align: .15em;
      }
      .jumpToFileContainer {
        display: inline-block;
      }
      .mobileJumpToFileContainer {
        display: none;
      }
      .downArrow {
        display: inline-block;
        font-size: .6em;
        vertical-align: middle;
      }
      .dropdown-trigger {
        color: #00e;
        cursor: pointer;
        padding: 0;
      }
      .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 {
        margin: 0 var(--default-horizontal-margin) .75em;
      }
      .prefsButton {
        text-align: right;
      }
      #modeSelect {
        margin-left: .5em;
      }
      .separator {
        margin: 0 .25em;
      }
      @media screen and (max-width: 50em) {
        .dash {
          display: none;
        }
        .reviewed {
          vertical-align: -.1em;
        }
        .jumpToFileContainer {
          display: none;
        }
        .mobileJumpToFileContainer {
          display: block;
          width: 100%;
        }
        .mobileJumpToFileContainer select {
          width: 100%;
        }
      }
    </style>
    <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">
          <gr-button link class="dropdown-trigger" id="trigger" on-tap="_showDropdownTapHandler">
            <span>[[_computeFileDisplayName(_path)]]</span>
            <span class="downArrow">&#9660;</span>
          </gr-button>
          <iron-dropdown id="dropdown" vertical-align="top" vertical-offset="25">
            <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$="[[_computeKeyNav(path, _path, _fileList)]]"
                   on-tap="_handleFileTap">[[_computeFileDisplayName(path)]]</a>
              </template>
            </div>
          </iron-dropdown>
        </div>
        <div class="mobileJumpToFileContainer">
          <select on-change="_handleMobileSelectChange">
            <template is="dom-repeat" items="[[_fileList]]" as="path">
              <option
                  value$="[[path]]"
                  selected$="[[_computeFileSelected(path, _path)]]">
                [[_computeTruncatedFileDisplayName(path)]]
              </option>
            </template>
          </select>
        </div>
      </h3>
      <div>
        <a class="navLink"
           href$="[[_computeNavLinkURL(_path, _fileList, -1, 1)]]">Prev</a>
        /
        <a class="navLink"
           href$="[[_computeNavLinkURL(_path, _fileList, 1, 1)]]">Next</a>
      </div>
    </header>
    <div class="loading" hidden$="[[!_loading]]">Loading...</div>
    <div hidden$="[[_loading]]" hidden>
      <div class="subHeader">
        <div class="patchRangeLeft">
          <gr-patch-range-select
              path="[[_path]]"
              change-num="[[_changeNum]]"
              patch-range="[[_patchRange]]"
              files-weblinks="[[_filesWeblinks]]"
              available-patches="[[_computeAvailablePatches(_change.revisions)]]"
              revisions="[[_change.revisions]]">
          </gr-patch-range-select>
          <span class="separator">/</span>
          <a class="downloadLink"
             href$="[[_computeDownloadLink(_changeNum, _patchRange, _path)]]">
            Download
          </a>
        </div>
        <div>
          <select
              id="modeSelect"
              is="gr-select"
              bind-value="{{changeViewState.diffMode}}"
              hidden$="[[_computeModeSelectHidden(_isImageDiff)]]">
            <option value="SIDE_BY_SIDE">Side By Side</option>
            <option value="UNIFIED_DIFF">Unified</option>
          </select>
          <span hidden$="[[_computePrefsButtonHidden(_prefs, _loggedIn)]]">
            <span
                hidden$="[[_computeModeSelectHidden(_isImageDiff)]]">/</span>
            <gr-button link
                class="prefsButton"
                on-tap="_handlePrefsTap">Preferences</gr-button>
          </span>
        </div>
      </div>
      <gr-overlay id="prefsOverlay" with-backdrop>
        <gr-diff-preferences
            id="diffPreferences"
            prefs="{{_prefs}}"
            local-prefs="{{_localPrefs}}"
            on-save="_handlePrefsSave"
            on-cancel="_handlePrefsCancel"></gr-diff-preferences>
      </gr-overlay>
      <gr-diff
          id="diff"
          project="[[_change.project]]"
          commit="[[_change.current_revision]]"
          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>