guochanpingtai/.local-browser/linux-722234/chrome-linux/resources/inspector/css_overview/CSSOverviewSidebarPanel.js

export default class CSSOverviewSidebarPanel extends UI.VBox{static get ITEM_CLASS_NAME(){return'overview-sidebar-panel-item';}
static get SELECTED(){return'selected';}
constructor(){super(true);this.registerRequiredCSS('css_overview/cssOverviewSidebarPanel.css');this.contentElement.classList.add('overview-sidebar-panel');this.contentElement.addEventListener('click',this._onItemClick.bind(this));const clearResultsButton=new UI.ToolbarButton(ls`Clear overview`,'largeicon-clear');clearResultsButton.addEventListener(UI.ToolbarButton.Events.Click,this._reset,this);const toolbarElement=this.contentElement.createChild('div','overview-toolbar');const toolbar=new UI.Toolbar('',toolbarElement);toolbar.appendToolbarItem(clearResultsButton);}
addItem(name,id){const item=this.contentElement.createChild('div',CssOverview.CSSOverviewSidebarPanel.ITEM_CLASS_NAME);item.textContent=name;item.dataset.id=id;}
_reset(){this.dispatchEventToListeners(SidebarEvents.Reset);}
_deselectAllItems(){const items=this.contentElement.querySelectorAll(`.${CssOverview.CSSOverviewSidebarPanel.ITEM_CLASS_NAME}`);for(const item of items){item.classList.remove(CssOverview.CSSOverviewSidebarPanel.SELECTED);}}
_onItemClick(event){const target=event.path[0];if(!target.classList.contains(CssOverview.CSSOverviewSidebarPanel.ITEM_CLASS_NAME)){return;}
const{id}=target.dataset;this.select(id);this.dispatchEventToListeners(SidebarEvents.ItemSelected,id);}
select(id){const target=this.contentElement.querySelector(`[data-id=${CSS.escape(id)}]`);if(!target){return;}
if(target.classList.contains(CssOverview.CSSOverviewSidebarPanel.SELECTED)){return;}
this._deselectAllItems();target.classList.add(CssOverview.CSSOverviewSidebarPanel.SELECTED);}}
export const SidebarEvents={ItemSelected:Symbol('ItemSelected'),Reset:Symbol('Reset')};self.CssOverview=self.CssOverview||{};CssOverview=CssOverview||{};CssOverview.CSSOverviewSidebarPanel=CSSOverviewSidebarPanel;CssOverview.SidebarEvents=SidebarEvents;