gerrit-3.4.3 的编译

对于 一个 提交 页面， 整个 页面是 在 mainContent 下面的

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<div id="mainContent" class="container"> 对于 一个 提交 页面， 整个 页面是 在 mainContent 下面的
    1. <section class="changeInfoSection">  最上部分的 changeInfo 块。
    
    2. <paper-tabs id="primaryTabs" role="tablist" tabindex="0" dir="null">  files/comments/findings 这个 tab 行
    3. <section class="patchInfo">
    4. <paper-tabs id="secondaryTabs" role="tablist" tabindex="0" dir="null"> Changelog  这个 tab 行
    5. <section class="changeLog">



  1. div id=”mainContent” > polygerrit-ui\app\elements\change\gr-change-view\gr-change-view_html.ts

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      <div
        id="mainContent"
        class="container"
        on-show-checks-table="_setActivePrimaryTab"
        hidden$="{{_loading}}"
        aria-hidden="[[_changeViewAriaHidden]]"
      >

    1.  <section class="changeInfoSection">  最上部分的 changeInfo 块。
          <div class$="[[_computeHeaderClass(_editMode)]]">
            <h1 class="assistive-tech-only">
              Change [[_change._number]]: [[_change.subject]]
            </h1>
            <div class="headerTitle">
              <div class="changeStatuses">
                <template is="dom-repeat" items="[[_changeStatuses]]" as="status">
                  <gr-change-status
                    max-width="100"
                    status="[[status]]"
                  ></gr-change-status>
                </template>
              </div>
              <gr-change-star
                id="changeStar"
                change="{{_change}}"
                on-toggle-star="_handleToggleStar"
                hidden$="[[!_loggedIn]]"
              ></gr-change-star>

              <a
                class="changeNumber"
                aria-label$="[[_computeChangePermalinkAriaLabel(_change._number)]]"
                href$="[[_computeChangeUrl(_change)]]"
                >[[_change._number]]</a
              >
              <span class="changeNumberColon">:&nbsp;</span>
              <span class="headerSubject">[[_change.subject]]</span>
              <gr-copy-clipboard
                class="changeCopyClipboard"
                hide-input=""
                text="[[_computeCopyTextForTitle(_change)]]"
              >
              </gr-copy-clipboard>
            </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}}"
                account="[[_account]]"
                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-edit-tap="_handleEditTap"
                on-stop-edit-tap="_handleStopEditTap"
                on-download-tap="_handleOpenDownloadDialog"
                comment-threads="[[_commentThreads]]"
              ></gr-change-actions>
            </div>
            <!-- end commit actions -->
          </div>
          <!-- end header -->
          <h2 class="assistive-tech-only">Change metadata</h2>
          <div 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">
                  <h3 class="assistive-tech-only">Commit Message</h3>
                  <div>
                    <gr-button
                      id="replyBtn"
                      class="reply"
                      title="[[createTitle(Shortcut.OPEN_REPLY_DIALOG,
                            ShortcutSection.ACTIONS)]]"
                      hidden$="[[!_loggedIn]]"
                      primary=""
                      disabled="[[_replyDisabled]]"
                      on-click="_handleReplyTap"
                      >[[_replyButtonLabel]]</gr-button
                    >
                  </div>
                  <div id="commitMessage" class="commitMessage">
                    <gr-editable-content
                      id="commitMessageEditor"
                      editing="{{_editingCommitMessage}}"
                      content="{{_latestCommitMessage}}"
                      storage-key="[[_computeCommitMessageKey(_change._number, _change.current_revision)]]"
                      hide-edit-commit-message="[[_hideEditCommitMessage]]"
                      commit-collapsible="[[_commitCollapsible]]"
                      remove-zero-width-space=""
                    >
                      <gr-linked-text
                        pre=""
                        content="[[_latestCommitMessage]]"
                        config="[[_projectConfig.commentlinks]]"
                        remove-zero-width-space=""
                      ></gr-linked-text>
                    </gr-editable-content>
                  </div>
                  <gr-change-summary
                    change-comments="[[_changeComments]]"
                    comment-threads="[[_commentThreads]]"
                    self-account="[[_account]]"
                  >
                  </gr-change-summary>
                  <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
                    change="[[_change]]"
                    id="relatedChanges"
                    mergeable="[[_mergeable]]"
                    patch-num="[[_computeLatestPatchNum(_allPatchSets)]]"
                  ></gr-related-changes-list>
                </div>
                <div class="emptySpace"></div>
              </div>
            </div>
          </div>
        </section>

        <h2 class="assistive-tech-only">Files and Comments tabs</h2>  files/comments/findings 这个 上面的一个标签，但是不显示的，把class 去掉就会显示
        
    2.  <paper-tabs id="primaryTabs" on-selected-changed="_setActivePrimaryTab">  files/comments/findings 这个 tab 行
          <paper-tab data-name$="[[_constants.PrimaryTab.FILES]]">Files</paper-tab>
          <paper-tab
            data-name$="[[_constants.PrimaryTab.COMMENT_THREADS]]"
            class="commentThreads"
          >
            <gr-tooltip-content
              has-tooltip=""
              title$="[[_computeTotalCommentCounts(_change.unresolved_comment_count, _changeComments)]]"
            >
              <span>Comments</span></gr-tooltip-content
            >
          </paper-tab>
          <template is="dom-if" if="[[_showChecksTab]]">
            <paper-tab data-name$="[[_constants.PrimaryTab.CHECKS]]"
              >Checks</paper-tab
            >
          </template>
          <template
            is="dom-repeat"
            items="[[_dynamicTabHeaderEndpoints]]"
            as="tabHeader"
          >
            <paper-tab data-name$="[[tabHeader]]">
              <gr-endpoint-decorator name$="[[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-tab data-name$="[[_constants.PrimaryTab.FINDINGS]]">
            Findings
          </paper-tab>
        </paper-tabs>


    3.  <section class="patchInfo">
          <div
            hidden$="[[!_isTabActive(_constants.PrimaryTab.FILES, _activeTabs)]]"
          >
            <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]]"
              on-open-diff-prefs="_handleOpenDiffPrefs"
              on-open-download-dialog="_handleOpenDownloadDialog"
              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]]"
              revisions="[[_change.revisions]]"
              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="[[_isTabActive(_constants.PrimaryTab.COMMENT_THREADS, _activeTabs)]]"
          >
            <gr-thread-list
              threads="[[_commentThreads]]"
              change="[[_change]]"
              change-num="[[_changeNum]]"
              logged-in="[[_loggedIn]]"
              comment-tab-state="[[_tabState.commentTab]]"
              only-show-robot-comments-with-human-reply=""
              unresolved-only
              show-comment-context
            ></gr-thread-list>
          </template>
          <template
            is="dom-if"
            if="[[_isTabActive(_constants.PrimaryTab.CHECKS, _activeTabs)]]"
          >
            <gr-checks-tab
              id="checksTab"
              tab-state="[[_tabState.checksTab]]"
            ></gr-checks-tab>
          </template>
          <template
            is="dom-if"
            if="[[_isTabActive(_constants.PrimaryTab.FINDINGS, _activeTabs)]]"
          >
            <gr-dropdown-list
              class="patch-set-dropdown"
              items="[[_robotCommentsPatchSetDropdownItems]]"
              on-value-change="_handleRobotCommentPatchSetChanged"
              value="[[_currentRobotCommentsPatchSet]]"
            >
            </gr-dropdown-list>
            <gr-thread-list
              threads="[[_robotCommentThreads]]"
              change="[[_change]]"
              change-num="[[_changeNum]]"
              logged-in="[[_loggedIn]]"
              hide-toggle-buttons
              empty-thread-msg="[[_messages.NO_ROBOT_COMMENTS_THREADS_MSG]]"
            >
            </gr-thread-list>
            <template is="dom-if" if="[[_showRobotCommentsButton]]">
              <gr-button
                class="show-robot-comments"
                on-click="_toggleShowRobotComments"
              >
                [[_computeShowText(_showAllRobotComments)]]
              </gr-button>
            </template>
          </template>

          <template
            is="dom-if"
            if="[[_isTabActive(_selectedTabPluginHeader, _activeTabs)]]"
          >
            <gr-endpoint-decorator name$="[[_selectedTabPluginEndpoint]]">
              <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>

    4.  <paper-tabs id="secondaryTabs" on-selected-changed="_setActiveSecondaryTab">  Changelog  这个 tab 行
          <paper-tab
            data-name$="[[_constants.SecondaryTab.CHANGE_LOG]]"
            class="changeLog"
          >    
            Change Log
          </paper-tab>
        </paper-tabs>

    5.  <section class="changeLog">
          <h2 class="assistive-tech-only">Change Log</h2>
          <template
            is="dom-if"
            if="[[_isTabActive(_constants.SecondaryTab.CHANGE_LOG, _activeTabs)]]"
          >
            <gr-messages-list
              class="hideOnMobileOverlay"
              change="[[_change]]"
              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>
        </section>
      </div>
  2. 最上部分的 changeInfo 块。在 mainContent 里面 
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    <section class="changeInfoSection">  
          
          <div class="header"> 最上一行的， 右边显示 rebase按钮， abandon 按钮的那一行
            <h1 class="assistive-tech-only">
              Change 263820: [KTUS-9106][BT][Bugfix]Fix reboot cause by BLUETOOTH_CONNECT permission
            </h1>
            
            <div class="headerTitle">
              <div class="changeStatuses">
                  <gr-change-status max-width="100" class="active"></gr-change-status>
                <dom-repeat as="status" style="display: none;"><template is="dom-repeat"></template></dom-repeat>
              </div>
              <gr-change-star id="changeStar"></gr-change-star>

              <a class="changeNumber" href="/c/git/android/platform/vendor/qcom-opensource/packages/apps/Bluetooth/+/263820" aria-label="Change 263820">263820</a>
              <span class="changeNumberColon">:&nbsp;</span>
              <span class="headerSubject">[KTUS-9106][BT][Bugfix]Fix reboot cause by BLUETOOTH_CONNECT permission</span>
              <gr-copy-clipboard class="changeCopyClipboard" hide-input="">
              </gr-copy-clipboard>
            </div>
            <!-- end headerTitle -->
            
            <div class="commitActions">   右边显示 rebase按钮， abandon 按钮的
              <gr-change-actions id="actions"></gr-change-actions>
              
           1. <section id="primaryActions">    里面又分了2个 section，其中 第一个是没内容的
              </section id="primaryActions">
                
           2. <section id="secondaryActions"> 我们需要参考的 code review +2 按钮就在这里
                <gr-button link="" position-below="" data-label="Code-Review+2" data-action-type="change" data-action-key="review" tabindex="0" role="button">
                  <iron-icon icon="gr-icons:review" class=""></iron-icon>
                  Code-Review+2
                </gr-button>  Code-Review+2按钮
                
                <gr-button link="" position-below="" data-label="Rebase" data-action-type="revision" data-action-key="rebase" title="Rebase onto tip of branch or parent change" tabindex="0" role="button">
                  <iron-icon icon="gr-icons:rebase" class=""></iron-icon>
                  Rebase
                </gr-button>  Rebase按钮
                
                <gr-button link="" position-below="" data-label="Abandon" data-action-type="change" data-action-key="abandon" title="Abandon the change" tabindex="0" role="button">
                  <iron-icon icon="gr-icons:abandon" class=""></iron-icon>
                  Abandon
                </gr-button>  Abandon按钮
                
                <gr-button link="" position-below="" data-label="Edit" data-action-type="change" data-action-key="edit" title="Edit this change" tabindex="0" role="button">
                  <iron-icon icon="gr-icons:edit" class=""></iron-icon>
                  Edit
                </gr-button>  Edit按钮
                
                <dom-repeat as="action" style="display: none;">
                    <template is="dom-repeat">
                    </template>
                </dom-repeat>
              </section> 我们需要参考的 code review +2 按钮就在这里 id="secondaryActions"
              
              <gr-dropdown id="moreActions" link="" vertical-offset="32" horizontal-align="right">
                  <iron-icon icon="gr-icons:more-vert" aria-labelledby="moreMessage">
                  </iron-icon>
                  <span id="moreMessage">More</span>
              </gr-dropdown>  
            </div>
            <!-- end commit actions -->
          </div>
          <!-- end header -->
          
          
          
          <h2 class="assistive-tech-only">Change metadata</h2>
          
          <div class="changeInfo">
            <div class="changeInfo-column changeMetadata hideOnMobileOverlay">
              <gr-change-metadata id="metadata">
              </gr-change-metadata>
            </div>
            <div id="mainChangeInfo" class="changeInfo-column mainChangeInfo">
              <div id="commitAndRelated" class="hideOnMobileOverlay">
                <div class="commitContainer">
                  <h3 class="assistive-tech-only">Commit Message</h3>
                  <div>
                    <gr-button id="replyBtn" class="reply" primary="" title="Open reply dialog to publish comments and add reviewers (shortcut: a)" tabindex="0" role="button">Reply</gr-button>
                  </div>
                  <div id="commitMessage" class="commitMessage">
                    <gr-editable-content id="commitMessageEditor" remove-zero-width-space="">
                      <gr-linked-text pre="" remove-zero-width-space=""></gr-linked-text>
                    </gr-editable-content>
                  </div>
                  <gr-change-summary>
                  </gr-change-summary>
                  <gr-endpoint-decorator name="commit-container">
                    <gr-endpoint-param name="change">
                    </gr-endpoint-param>
                    <gr-endpoint-param name="revision">
                    </gr-endpoint-param>
                  </gr-endpoint-decorator>
                </div>
                <div class="relatedChanges">
                  <gr-related-changes-list id="relatedChanges"></gr-related-changes-list>
                </div>
                <div class="emptySpace"></div>
              </div>
            </div>
          </div>
          
    </section> , end of <section class="changeInfoSection">

  3. 在这个文件中 polygerrit-ui\app\elements\change\gr-change-view\gr-change-view_html.ts 
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    <section class="changeInfoSection">
          <div class$="[[_computeHeaderClass(_editMode)]]">   最上一行的， <div class="header"> 右边显示 rebase按钮， abandon 按钮的那一行
            
            <h1 class="assistive-tech-only">
              Change [[_change._number]]: [[_change.subject]] 左边 标题 Change 263820: [KTUS-9106][BT][Bugfix]Fix reboot cause by BLUETOOTH_CONNECT permission
            </h1>
            
            <div class="headerTitle">
              <div class="changeStatuses">
                <template is="dom-repeat" items="[[_changeStatuses]]" as="status">
                  <gr-change-status
                    max-width="100"
                    status="[[status]]"
                  ></gr-change-status>
                </template>
              </div>
              <gr-change-star
                id="changeStar"
                change="{{_change}}"
                on-toggle-star="_handleToggleStar"
                hidden$="[[!_loggedIn]]"
              ></gr-change-star>

              <a
                class="changeNumber"
                aria-label$="[[_computeChangePermalinkAriaLabel(_change._number)]]"
                href$="[[_computeChangeUrl(_change)]]"
                >[[_change._number]]</a
              >
              <span class="changeNumberColon">:&nbsp;</span>
              <span class="headerSubject">[[_change.subject]]</span>
              <gr-copy-clipboard
                class="changeCopyClipboard"
                hide-input=""
                text="[[_computeCopyTextForTitle(_change)]]"
              >
              </gr-copy-clipboard>
            </div>
            <!-- end headerTitle -->
            
            
            <div class="commitActions" hidden$="[[!_loggedIn]]">  右边显示 rebase按钮， abandon 按钮的
              <gr-change-actions
                id="actions"
                change="[[_change]]"
                disable-edit="[[disableEdit]]"
                has-parent="[[hasParent]]"
                actions="[[_change.actions]]"
                revision-actions="{{_currentRevisionActions}}"
                account="[[_account]]"
                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-edit-tap="_handleEditTap"
                on-stop-edit-tap="_handleStopEditTap"
                on-download-tap="_handleOpenDownloadDialog"
                comment-threads="[[_commentThreads]]"
              ></gr-change-actions>
            </div>
            <!-- end commit actions -->
          </div>
          <!-- end header 最上一行的， <div class="header"> 右边显示 rebase按钮， abandon 按钮的那一行 -->
          
          <h2 class="assistive-tech-only">Change metadata</h2>
          <div 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">
                  <h3 class="assistive-tech-only">Commit Message</h3>
                  <div>
                    <gr-button
                      id="replyBtn"
                      class="reply"
                      title="[[createTitle(Shortcut.OPEN_REPLY_DIALOG,
                            ShortcutSection.ACTIONS)]]"
                      hidden$="[[!_loggedIn]]"
                      primary=""
                      disabled="[[_replyDisabled]]"
                      on-click="_handleReplyTap"
                      >[[_replyButtonLabel]]</gr-button
                    >
                  </div>
                  <div id="commitMessage" class="commitMessage">
                    <gr-editable-content
                      id="commitMessageEditor"
                      editing="{{_editingCommitMessage}}"
                      content="{{_latestCommitMessage}}"
                      storage-key="[[_computeCommitMessageKey(_change._number, _change.current_revision)]]"
                      hide-edit-commit-message="[[_hideEditCommitMessage]]"
                      commit-collapsible="[[_commitCollapsible]]"
                      remove-zero-width-space=""
                    >
                      <gr-linked-text
                        pre=""
                        content="[[_latestCommitMessage]]"
                        config="[[_projectConfig.commentlinks]]"
                        remove-zero-width-space=""
                      ></gr-linked-text>
                    </gr-editable-content>
                  </div>
                  <gr-change-summary
                    change-comments="[[_changeComments]]"
                    comment-threads="[[_commentThreads]]"
                    self-account="[[_account]]"
                  >
                  </gr-change-summary>
                  <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
                    change="[[_change]]"
                    id="relatedChanges"
                    mergeable="[[_mergeable]]"
                    patch-num="[[_computeLatestPatchNum(_allPatchSets)]]"
                  ></gr-related-changes-list>
                </div>
                <div class="emptySpace"></div>
              </div>
            </div>
          </div>
        </section>

  4. moreActions 最右边 3个 点的那个 按钮.

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    <div class="dropdown-content" slot="dropdown-content" style="box-sizing: border-box; max-width: 124.85px; max-height: 219.667px;">
          <ul>
            <dom-if style="display: none;"><template is="dom-if"></template></dom-if>
            
              <li tabindex="-1" class="selected">
                <gr-tooltip-content title="Cherry pick change to a different branch" has-tooltip="">
                  <span tabindex="-1" class="itemAction " data-id="cherrypick-revision">Cherry pick</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Cherry pick</a>
                </gr-tooltip-content>
              </li>
            
              <li tabindex="-1">
                <gr-tooltip-content title="Open download dialog" has-tooltip="">  ./polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.ts:181:  title: 'Open download dialog',
                  <span tabindex="-1" class="itemAction " data-id="download-revision">Download patch</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Download patch</a>
                </gr-tooltip-content>
              </li>
            
              <li tabindex="-1">
                <gr-tooltip-content title="Delete change 1" has-tooltip="">
                  <span tabindex="-1" class="itemAction " data-id="delete-change">Delete change</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Delete change</a>
                </gr-tooltip-content>
              </li>
            
              <li tabindex="-1">
                <gr-tooltip-content title="Create follow-up change" has-tooltip=""> ./java/com/google/gerrit/server/change/ActionJson.java:187:      descr.setTitle("Create follow-up change");
                  <span tabindex="-1" class="itemAction " data-id="followup-change">Follow-up</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Follow-up</a>
                </gr-tooltip-content>
              </li>
            
              <li tabindex="-1">
                <gr-tooltip-content title="Mark change as private" has-tooltip="">
                  <span tabindex="-1" class="itemAction " data-id="private-change">Mark private</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Mark private</a>
                </gr-tooltip-content>
              </li>
            
              <li tabindex="-1">
                <gr-tooltip-content title="Move change to a different branch" has-tooltip=""> ./java/com/google/gerrit/server/restapi/change/Move.java:287:            .setTitle("Move change to a different branch")
                  <span tabindex="-1" class="itemAction " data-id="move-change">Move change</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Move change</a>
                </gr-tooltip-content>
              </li>
              
              <li tabindex="-1">
                <gr-tooltip-content title="Delete change 1" has-tooltip=""> ./java/com/google/gerrit/server/restapi/change/DeleteChange.java:71:        .setTitle("Delete change " + rsrc.getId())
                  <span tabindex="-1" class="itemAction " data-id="delete-change">Delete change</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Delete change</a>
                </gr-tooltip-content>
              </li>
              
              <li tabindex="-1">
                <gr-tooltip-content title="Set Work In Progress" has-tooltip="">  ./java/com/google/gerrit/server/restapi/change/SetWorkInProgress.java:79:        .setTitle("Set Work In Progress")
                  <span tabindex="-1" class="itemAction " data-id="wip-change">Mark as work in progress</span>
                  <a class="itemAction" tabindex="-1" href="" hidden="true">Mark as work in progress</a>
                </gr-tooltip-content>
              </li>
            <dom-repeat as="link" initial-count="75" style="display: none;"><template is="dom-repeat"></template></dom-repeat>
          </ul>
    </div>

需求： 修改 页面上 commit id 显示成完整的，默认是只显示前几位的。

操作方法： 先浏览器上 右键 选择 检查 查看 这个html元素， 是在哪里，看在哪个div里面？ 有什么 关键词？ id 什么的？
这里实际 搜到了 一个 gr-commit-info 关键词。然后还看出来这个 commit id是在 一个 标签中。
右边还有个 复制到剪切板的 按钮。这个按钮有个提示 Copy full SHA to clipboard 这个也是个关键词。
我们就拿 gr-commit-info关键词 去代码里面搜，如果没搜到 再拿 Copy full SHA to clipboard 去搜。

总之 这一步就是要找到 我们要修改的 地方 在源码的 哪里的。。。。

最终我们搜到 这个文件 polygerrit-ui\app\elements\change\gr-commit-info\gr-commit-info.ts, 在render() 方法中我们看到了想要的 标签，和旁边的 复制到剪切板

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override render() {
  return html` <div class="container">
    <a
      target="_blank"
      rel="noopener"
      href="${this.computeCommitLink(
        this._webLink,
        this.change,
        this.commitInfo,
        this.serverConfig
      )}"
      >${this.commitInfo?.commit}</a
    >
    <gr-copy-clipboard
      hastooltip
      .buttonTitle="${'Copy full SHA to clipboard'}"
      hideinput
      .text="${this.commitInfo?.commit}"
    >
    </gr-copy-clipboard>
  </div>`;
}