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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,
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<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/keyboard-shortcut-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);
      }
      .navLink: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;
      }
      @media screen and (max-width: 50em) {
        .dash {
          display: none;
        }
        .reviewed {
          vertical-align: -.1em;
        }
        .jumpToFileContainer {
          display: none;
        }
        .mobileJumpToFileContainer {
          display: block;
          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$="[[_computeFileSelected(path, _path)]]">
                [[_computeFileDisplayName(path)]]
              </option>
            </template>
          </select>
        </div>
      </h3>
      <div>
        <a class="navLink"
            href$="[[_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$="[[_loading]]" hidden>
      <div class="subHeader">
        <gr-patch-range-select
            path="[[_path]]"
            change-num="[[_changeNum]]"
            patch-range="[[_patchRange]]"
            files-weblinks="[[_filesWeblinks]]"
            available-patches="[[_computeAvailablePatches(_change.revisions)]]">
        </gr-patch-range-select>
        <div>
          <select
              id="modeSelect"
              is="gr-select"
              bind-value="{{changeViewState.diffMode}}"
              hidden$="[[_computeModeSelectHidden(_isImageDiff)]]"
              on-change="_handleDropdownChange">
            <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>