<!--
@license
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.
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<link rel="import" href="/bower_components/polymer/polymer.html">
<link rel="import" href="../../../behaviors/fire-behavior/fire-behavior.html">
<link rel="import" href="../../../behaviors/gr-patch-set-behavior/gr-patch-set-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/paper-tabs/paper-tabs.html">
<link rel="import" href="../../../styles/shared-styles.html">
<link rel="import" href="../../core/gr-navigation/gr-navigation.html">
<link rel="import" href="../../core/gr-reporting/gr-reporting.html">
<link rel="import" href="../../diff/gr-comment-api/gr-comment-api.html">
<link rel="import" href="../../edit/gr-edit-constants.html">
<link rel="import" href="../../plugins/gr-endpoint-decorator/gr-endpoint-decorator.html">
<link rel="import" href="../../plugins/gr-endpoint-param/gr-endpoint-param.html">
<link rel="import" href="../../shared/gr-account-link/gr-account-link.html">
<link rel="import" href="../../shared/gr-button/gr-button.html">
<link rel="import" href="../../shared/gr-change-star/gr-change-star.html">
<link rel="import" href="../../shared/gr-change-status/gr-change-status.html">
<link rel="import" href="../../shared/gr-count-string-formatter/gr-count-string-formatter.html">
<link rel="import" href="../../shared/gr-date-formatter/gr-date-formatter.html">
<link rel="import" href="../../shared/gr-editable-content/gr-editable-content.html">
<link rel="import" href="../../shared/gr-js-api-interface/gr-js-api-interface.html">
<link rel="import" href="../../shared/gr-linked-text/gr-linked-text.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-tooltip-content/gr-tooltip-content.html">
<link rel="import" href="../../shared/revision-info/revision-info.html">
<link rel="import" href="../gr-change-actions/gr-change-actions.html">
<link rel="import" href="../gr-change-metadata/gr-change-metadata.html">
<link rel="import" href="../../shared/gr-icons/gr-icons.html">
<link rel="import" href="../gr-commit-info/gr-commit-info.html">
<link rel="import" href="../gr-download-dialog/gr-download-dialog.html">
<link rel="import" href="../gr-file-list-header/gr-file-list-header.html">
<link rel="import" href="../gr-file-list/gr-file-list.html">
<link rel="import" href="../gr-included-in-dialog/gr-included-in-dialog.html">
<link rel="import" href="../gr-messages-list/gr-messages-list.html">
<link rel="import" href="../gr-related-changes-list/gr-related-changes-list.html">
<link rel="import" href="../gr-reply-dialog/gr-reply-dialog.html">
<link rel="import" href="../gr-thread-list/gr-thread-list.html">
<link rel="import" href="../gr-upload-help-dialog/gr-upload-help-dialog.html">

<dom-module id="gr-change-view">
  <template>
    <style include="shared-styles">
      .container:not(.loading) {
        background-color: var(--view-background-color);
      }
      .container.loading {
        color: var(--deemphasized-text-color);
        padding: var(--spacing-l);
      }
      .header {
        align-items: center;
        background-color: var(--table-header-background-color);
        border-bottom: 1px solid var(--border-color);
        display: flex;
        padding: var(--spacing-s) var(--spacing-l);
        z-index: 99;  /* Less than gr-overlay's backdrop */
      }
      .header.editMode {
        background-color: var(--edit-mode-background-color);
      }
      .header .download {
        margin-right: var(--spacing-l);
      }
      gr-change-status {
        display: initial;
        margin: var(--spacing-xxs) var(--spacing-xxs) var(--spacing-xxs) var(--spacing-s);
      }
      gr-change-status:first-child {
        margin-left: 0;
      }
      .headerTitle {
        align-items: center;
        display: flex;
        flex: 1;
        font-size: var(--font-size-h3);
      }
      .headerTitle .headerSubject {
        font-weight: var(--font-weight-bold);
      }
      #replyBtn {
        margin-bottom: var(--spacing-l);
      }
      gr-change-star {
        margin-right: var(--spacing-xs);
      }
      gr-reply-dialog {
        width: 60em;
      }
      .changeStatus {
        text-transform: capitalize;
      }
      .changeInfo {
        background-color: var(--table-header-background-color);
      }
      /* Strong specificity here is needed due to
         https://github.com/Polymer/polymer/issues/2531 */
      .container section.changeInfo {
        display: flex;
      }
      .changeId {
        color: var(--deemphasized-text-color);
        font-family: var(--font-family);
        margin-top: var(--spacing-l);
      }
      .changeMetadata {
        /* Limit meta section to half of the screen at max */
        max-width: 50%;
      }
      .commitMessage {
        font-family: var(--monospace-font-family);
        font-size: var(--font-size-mono);
        line-height: var(--line-height-mono);
        margin-right: var(--spacing-l);
        margin-bottom: var(--spacing-l);
        max-width: var(--commit-message-max-width, 72ch);;
      }
      .commitMessage gr-linked-text {
        word-break: break-word;
      }
      #commitMessageEditor {
        /* Account for border and padding */
        min-width: calc(72ch + 2px + 2*var(--spacing-m));
      }
      .editCommitMessage {
        margin-top: var(--spacing-l);

        --gr-button: {
          padding: 5px 0px;
        }
      }
      .changeStatuses,
      .commitActions,
      .statusText {
        align-items: center;
        display: flex;
      }
      .changeStatuses {
        flex-wrap: wrap;
      }
      .mainChangeInfo {
        display: flex;
        flex: 1;
        flex-direction: column;
        min-width: 0;
      }
      #commitAndRelated {
        align-content: flex-start;
        display: flex;
        flex: 1;
        overflow-x: hidden;
      }
      .relatedChanges {
        flex: 1 1 auto;
        overflow: hidden;
        padding: var(--spacing-l) 0;
      }
      .mobile {
        display: none;
      }
      .warning {
        color: var(--error-text-color);
      }
      hr {
        border: 0;
        border-top: 1px solid var(--border-color);
        height: 0;
        margin-bottom: var(--spacing-l);
      }
      #commitMessage.collapsed {
        max-height: 36em;
        overflow: hidden;
      }
      #relatedChanges {
      }
      #relatedChanges.collapsed {
        margin-bottom: var(--spacing-l);
        max-height: var(--relation-chain-max-height, 2em);
        overflow: hidden;
      }
      .commitContainer {
        display: flex;
        flex-direction: column;
        flex-shrink: 0;
        margin: var(--spacing-l) 0;
        padding: 0 var(--spacing-l);
      }
      .collapseToggleContainer {
        display: flex;
        margin-bottom: 8px;
      }
      #relatedChangesToggle {
        display: none;
      }
      #relatedChangesToggle.showToggle {
        display: flex;
      }
      .collapseToggleContainer gr-button {
        display: block;
      }
      #relatedChangesToggle {
        margin-left: var(--spacing-l);
        padding-top: var(--related-change-btn-top-padding, 0);
      }
      .showOnEdit {
        display: none;
      }
      .scrollable {
        overflow: auto;
      }
      .text {
        white-space: pre;
      }
      gr-commit-info {
        display: inline-block;
        margin-right: -5px;
      }
      paper-tabs {
        background-color: var(--table-header-background-color);
        border-top: 1px solid var(--border-color);
        height: calc(var(--line-height-normal) + 2*var(--spacing-m));
        --paper-tabs-selection-bar-color: var(--link-color);
      }
      paper-tab {
        box-sizing: border-box;
        max-width: 12em;
        --paper-tab-ink: var(--link-color);
      }
      gr-thread-list,
      gr-messages-list {
        display: block;
      }
      #includedInOverlay {
        width: 65em;
      }
      #uploadHelpOverlay {
        width: 50em;
      }
      @media screen and (min-width: 80em) {
        .commitMessage {
          max-width: var(--commit-message-max-width, 100ch);
        }
      }
      #metadata {
        --metadata-horizontal-padding: var(--spacing-l);
        padding-top: var(--spacing-l);
        width: 100%;
      }
      /* NOTE: If you update this breakpoint, also update the
      BREAKPOINT_RELATED_MED in the JS */
      @media screen and (max-width: 75em) {
        .relatedChanges {
          padding: 0;
        }
        #relatedChanges {
          padding-top: var(--spacing-l);
        }
        #commitAndRelated {
          flex-direction: column;
          flex-wrap: nowrap;
        }
        #commitMessageEditor {
          min-width: 0;
        }
        .commitMessage {
          margin-right: 0;
        }
        .mainChangeInfo {
          padding-right: 0;
        }
      }
      /* NOTE: If you update this breakpoint, also update the
      BREAKPOINT_RELATED_SMALL in the JS */
      @media screen and (max-width: 50em) {
        .mobile {
          display: block;
        }
        .header {
          align-items: flex-start;
          flex-direction: column;
          flex: 1;
          padding: var(--spacing-s) var(--spacing-l);
        }
        gr-change-star {
          vertical-align: middle;
        }
        .headerTitle {
          flex-wrap: wrap;
          font-size: var(--font-size-h3);
        }
        .desktop {
          display: none;
        }
        .reply {
          display: block;
          margin-right: 0;
          /* px because don't have the same font size */
          margin-bottom: 6px;
        }
        .changeInfo-column:not(:last-of-type) {
          margin-right: 0;
          padding-right: 0;
        }
        .changeInfo,
        #commitAndRelated {
          flex-direction: column;
          flex-wrap: nowrap;
        }
        .commitContainer {
          margin: 0;
          padding: var(--spacing-l);
        }
        .changeMetadata {
          margin-top: var(--spacing-xs);
          max-width: none;
        }
        #metadata,
        .mainChangeInfo {
          padding: 0;
        }
        .commitActions {
          display: block;
          margin-top: var(--spacing-l);
          width: 100%;
        }
        .commitMessage {
          flex: initial;
          margin: 0;
        }
        /* Change actions are the only thing thant need to remain visible due
        to the fact that they may have the currently visible overlay open. */
        #mainContent.overlayOpen .hideOnMobileOverlay {
          display: none;
        }
        gr-reply-dialog {
          height: 100vh;
          min-width: initial;
          width: 100vw;
        }
        #replyOverlay {
          z-index: var(--reply-overlay-z-index);
        }
      }
    </style>
    <div class="container loading" hidden$="[[!_loading]]">Loading...</div>
    <div
        id="mainContent"
        class="container"
        on-show-checks-table="_handleShowTab"
        hidden$="{{_loading}}">
      <div class$="[[_computeHeaderClass(_editMode)]]">
        <div class="headerTitle">
          <gr-change-star
              id="changeStar"
              change="{{_change}}"
              on-toggle-star="_handleToggleStar"
              hidden$="[[!_loggedIn]]"></gr-change-star>
          <div class="changeStatuses">
            <template is="dom-repeat" items="[[_changeStatuses]]" as="status">
              <gr-change-status
                  max-width="100"
                  status="[[status]]"></gr-change-status>
            </template>
          </div>
          <div class="statusText">
            <template
                is="dom-if"
                if="[[_computeShowCommitInfo(_changeStatus, _change.current_revision)]]">
              <span class="text"> as </span>
              <gr-commit-info
                  change="[[_change]]"
                  commit-info="[[_computeMergedCommitInfo(_change.current_revision, _change.revisions)]]"
                  server-config="[[_serverConfig]]"></gr-commit-info>
            </template>
          </div>
          <span class="separator"></span>
          <a aria-label$="[[_computeChangePermalinkAriaLabel(_change._number)]]"
              href$="[[_computeChangeUrl(_change)]]">[[_change._number]]</a>
          <pre>: </pre>
          <span class="headerSubject">[[_change.subject]]</span>
        </div><!-- end headerTitle -->
        <div class="commitActions" hidden$="[[!_loggedIn]]">
          <gr-change-actions
              id="actions"
              change="[[_change]]"
              disable-edit="[[disableEdit]]"
              has-parent="[[hasParent]]"
              actions="[[_change.actions]]"
              revision-actions="{{_currentRevisionActions}}"
              change-num="[[_changeNum]]"
              change-status="[[_change.status]]"
              commit-num="[[_commitInfo.commit]]"
              latest-patch-num="[[computeLatestPatchNum(_allPatchSets)]]"
              commit-message="[[_latestCommitMessage]]"
              edit-patchset-loaded="[[hasEditPatchsetLoaded(_patchRange.*)]]"
              edit-mode="[[_editMode]]"
              edit-based-on-current-patch-set="[[hasEditBasedOnCurrentPatchSet(_allPatchSets)]]"
              private-by-default="[[_projectConfig.private_by_default]]"
              on-reload-change="_handleReloadChange"
              on-edit-tap="_handleEditTap"
              on-stop-edit-tap="_handleStopEditTap"
              on-download-tap="_handleOpenDownloadDialog"></gr-change-actions>
        </div><!-- end commit actions -->
      </div><!-- end header -->
      <section class="changeInfo">
        <div class="changeInfo-column changeMetadata hideOnMobileOverlay">
          <gr-change-metadata
              id="metadata"
              change="{{_change}}"
              account="[[_account]]"
              revision="[[_selectedRevision]]"
              commit-info="[[_commitInfo]]"
              server-config="[[_serverConfig]]"
              parent-is-current="[[_parentIsCurrent]]"
              on-show-reply-dialog="_handleShowReplyDialog">
          </gr-change-metadata>
        </div>
        <div id="mainChangeInfo" class="changeInfo-column mainChangeInfo">
          <div id="commitAndRelated" class="hideOnMobileOverlay">
            <div class="commitContainer">
              <div>
                <gr-button
                    id="replyBtn"
                    class="reply"
                    hidden$="[[!_loggedIn]]"
                    primary
                    disabled="[[_replyDisabled]]"
                    on-click="_handleReplyTap">[[_replyButtonLabel]]</gr-button>
              </div>
              <div
                  id="commitMessage"
                  class$="commitMessage [[_computeCommitClass(_commitCollapsed, _latestCommitMessage)]]">
                <gr-editable-content id="commitMessageEditor"
                    editing="[[_editingCommitMessage]]"
                    content="{{_latestCommitMessage}}"
                    storage-key="[[_computeCommitMessageKey(_change._number, _change.current_revision)]]"
                    remove-zero-width-space>
                  <gr-linked-text pre
                      content="[[_latestCommitMessage]]"
                      config="[[_projectConfig.commentlinks]]"
                      remove-zero-width-space></gr-linked-text>
                </gr-editable-content>
                <gr-button link
                    class="editCommitMessage"
                    on-click="_handleEditCommitMessage"
                    hidden$="[[_hideEditCommitMessage]]">Edit</gr-button>
                <div class="changeId" hidden$="[[!_changeIdCommitMessageError]]">
                  <hr>
                  Change-Id:
                  <span
                      class$="[[_computeChangeIdClass(_changeIdCommitMessageError)]]"
                      title$="[[_computeTitleAttributeWarning(_changeIdCommitMessageError)]]">
                    [[_change.change_id]]
                  </span>
                </div>
              </div>
              <div
                  id="commitCollapseToggle"
                  class="collapseToggleContainer"
                  hidden$="[[_computeCommitToggleHidden(_latestCommitMessage)]]">
                <gr-button
                    link
                    id="commitCollapseToggleButton"
                    class="collapseToggleButton"
                    on-click="_toggleCommitCollapsed">
                  [[_computeCollapseText(_commitCollapsed)]]
                </gr-button>
              </div>
              <gr-endpoint-decorator name="commit-container">
                <gr-endpoint-param name="change" value="[[_change]]">
                </gr-endpoint-param>
                <gr-endpoint-param name="revision" value="[[_selectedRevision]]">
                </gr-endpoint-param>
              </gr-endpoint-decorator>
            </div>
            <div class="relatedChanges">
              <gr-related-changes-list id="relatedChanges"
                  class$="[[_computeRelatedChangesClass(_relatedChangesCollapsed)]]"
                  change="[[_change]]"
                  mergeable="[[_mergeable]]"
                  has-parent="{{hasParent}}"
                  on-update="_updateRelatedChangeMaxHeight"
                  patch-num="[[computeLatestPatchNum(_allPatchSets)]]"
                  on-new-section-loaded="_computeShowRelatedToggle">
              </gr-related-changes-list>
              <div
                  id="relatedChangesToggle"
                  class="collapseToggleContainer">
                <gr-button
                    link
                    id="relatedChangesToggleButton"
                    class="collapseToggleButton"
                    on-click="_toggleRelatedChangesCollapsed">
                  [[_computeCollapseText(_relatedChangesCollapsed)]]
                </gr-button>
              </div>
            </div>
          </div>
        </div>
      </section>

      <section class="patchInfo">
        <template is="dom-if" if="[[_showPrimaryTabs]]">
          <paper-tabs id="primaryTabs" on-selected-changed="_handleFileTabChange">
            <paper-tab>Files</paper-tab>
            <template is="dom-repeat" items="[[_dynamicTabHeaderEndpoints]]"
              as="tabHeader">
              <paper-tab>
                  <gr-endpoint-decorator name$="[[tabHeader]]">
                      <gr-endpoint-param name="change" value="[[_change]]">
                      </gr-endpoint-param>
                      <gr-endpoint-param name="revision" value="[[_selectedRevision]]">
                      </gr-endpoint-param>
                  </gr-endpoint-decorator>
              </paper-tab>
            </template>
          </paper-tabs>
        </template>

        <div hidden$="[[!_showFileTabContent]]">
          <gr-file-list-header
            id="fileListHeader"
            account="[[_account]]"
            all-patch-sets="[[_allPatchSets]]"
            change="[[_change]]"
            change-num="[[_changeNum]]"
            revision-info="[[_revisionInfo]]"
            change-comments="[[_changeComments]]"
            commit-info="[[_commitInfo]]"
            change-url="[[_computeChangeUrl(_change)]]"
            edit-mode="[[_editMode]]"
            logged-in="[[_loggedIn]]"
            server-config="[[_serverConfig]]"
            shown-file-count="[[_shownFileCount]]"
            diff-prefs="[[_diffPrefs]]"
            diff-view-mode="{{viewState.diffMode}}"
            patch-num="{{_patchRange.patchNum}}"
            base-patch-num="{{_patchRange.basePatchNum}}"
            files-expanded="[[_filesExpanded]]"
            diff-prefs-disabled="[[_diffPrefsDisabled]]"
            show-title="[[!_showPrimaryTabs]]"
            on-open-diff-prefs="_handleOpenDiffPrefs"
            on-open-download-dialog="_handleOpenDownloadDialog"
            on-open-upload-help-dialog="_handleOpenUploadHelpDialog"
            on-open-included-in-dialog="_handleOpenIncludedInDialog"
            on-expand-diffs="_expandAllDiffs"
            on-collapse-diffs="_collapseAllDiffs">
        </gr-file-list-header>
        <gr-file-list
            id="fileList"
            class="hideOnMobileOverlay"
            diff-prefs="{{_diffPrefs}}"
            change="[[_change]]"
            change-num="[[_changeNum]]"
            patch-range="{{_patchRange}}"
            change-comments="[[_changeComments]]"
            drafts="[[_diffDrafts]]"
            revisions="[[_change.revisions]]"
            project-config="[[_projectConfig]]"
            selected-index="{{viewState.selectedFileIndex}}"
            diff-view-mode="[[viewState.diffMode]]"
            edit-mode="[[_editMode]]"
            num-files-shown="{{_numFilesShown}}"
            files-expanded="{{_filesExpanded}}"
            file-list-increment="{{_numFilesShown}}"
            on-files-shown-changed="_setShownFiles"
            on-file-action-tap="_handleFileActionTap"
            on-reload-drafts="_reloadDraftsWithCallback"></gr-file-list>
        </div>

        <template is="dom-if" if="[[!_showFileTabContent]]">
            <gr-endpoint-decorator name$="[[_selectedFilesTabPluginEndpoint]]">
                <gr-endpoint-param name="change" value="[[_change]]">
                </gr-endpoint-param>
                <gr-endpoint-param name="revision" value="[[_selectedRevision]]">
                </gr-endpoint-param>
            </gr-endpoint-decorator>
        </template>
      </section>

      <gr-endpoint-decorator name="change-view-integration">
        <gr-endpoint-param name="change" value="[[_change]]">
        </gr-endpoint-param>
        <gr-endpoint-param name="revision" value="[[_selectedRevision]]">
        </gr-endpoint-param>
      </gr-endpoint-decorator>
      <paper-tabs
          id="commentTabs"
          on-selected-changed="_handleCommentTabChange">
        <paper-tab class="changeLog">Change Log</paper-tab>
        <paper-tab
            class="commentThreads">
          <gr-tooltip-content
              has-tooltip
              title$="[[_computeTotalCommentCounts(_change.unresolved_comment_count, _changeComments)]]">
            <span>Comment Threads</span></gr-tooltip-content>
        </paper-tab>
      </paper-tabs>
      <template is="dom-if" if="[[_showMessagesView]]">
        <gr-messages-list
            class="hideOnMobileOverlay"
            change-num="[[_changeNum]]"
            labels="[[_change.labels]]"
            messages="[[_change.messages]]"
            reviewer-updates="[[_change.reviewer_updates]]"
            change-comments="[[_changeComments]]"
            project-name="[[_change.project]]"
            show-reply-buttons="[[_loggedIn]]"
            on-message-anchor-tap="_handleMessageAnchorTap"
            on-reply="_handleMessageReply"></gr-messages-list>
      </template>
      <template is="dom-if" if="[[!_showMessagesView]]">
        <gr-thread-list
            threads="[[_commentThreads]]"
            change="[[_change]]"
            change-num="[[_changeNum]]"
            logged-in="[[_loggedIn]]"
            on-thread-list-modified="_handleReloadDiffComments"></gr-thread-list>
      </template>
    </div>
    <gr-overlay id="downloadOverlay" with-backdrop>
      <gr-download-dialog
          id="downloadDialog"
          change="[[_change]]"
          patch-num="[[_patchRange.patchNum]]"
          config="[[_serverConfig.download]]"
          on-close="_handleDownloadDialogClose"></gr-download-dialog>
    </gr-overlay>
    <gr-overlay id="uploadHelpOverlay" with-backdrop>
      <gr-upload-help-dialog
          revision="[[_currentRevision]]"
          target-branch="[[_change.branch]]"
          on-close="_handleCloseUploadHelpDialog"></gr-upload-help-dialog>
    </gr-overlay>
    <gr-overlay id="includedInOverlay" with-backdrop>
      <gr-included-in-dialog
          id="includedInDialog"
          change-num="[[_changeNum]]"
          on-close="_handleIncludedInDialogClose"></gr-included-in-dialog>
    </gr-overlay>
    <gr-overlay id="replyOverlay"
        class="scrollable"
        no-cancel-on-outside-click
        no-cancel-on-esc-key
        with-backdrop>
      <gr-reply-dialog id="replyDialog"
          change="{{_change}}"
          patch-num="[[computeLatestPatchNum(_allPatchSets)]]"
          permitted-labels="[[_change.permitted_labels]]"
          diff-drafts="[[_diffDrafts]]"
          project-config="[[_projectConfig]]"
          can-be-started="[[_canStartReview]]"
          on-send="_handleReplySent"
          on-cancel="_handleReplyCancel"
          on-autogrow="_handleReplyAutogrow"
          on-send-disabled-changed="_resetReplyOverlayFocusStops"
          hidden$="[[!_loggedIn]]">
      </gr-reply-dialog>
    </gr-overlay>
    <gr-js-api-interface id="jsAPI"></gr-js-api-interface>
    <gr-rest-api-interface id="restAPI"></gr-rest-api-interface>
    <gr-comment-api id="commentAPI"></gr-comment-api>
    <gr-reporting id="reporting"></gr-reporting>
  </template>
  <script src="gr-change-view.js"></script>
</dom-module>