Files
vscode/src/vs/workbench/api/common/extHostEditorTabs.ts

345 lines
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TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import type * as vscode from 'vscode';
import * as typeConverters from 'vs/workbench/api/common/extHostTypeConverters';
import { IEditorTabDto, IEditorTabGroupDto, IExtHostEditorTabsShape, MainContext, MainThreadEditorTabsShape, TabInputKind } from 'vs/workbench/api/common/extHost.protocol';
import { URI } from 'vs/base/common/uri';
import { Emitter } from 'vs/base/common/event';
import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
import { CustomEditorTabInput, NotebookEditorDiffTabInput, NotebookEditorTabInput, TextDiffTabInput, TextTabInput, ViewColumn } from 'vs/workbench/api/common/extHostTypes';
import { IExtHostRpcService } from 'vs/workbench/api/common/extHostRpcService';
export interface IExtHostEditorTabs extends IExtHostEditorTabsShape {
readonly _serviceBrand: undefined;
tabGroups: vscode.TabGroups;
}
export const IExtHostEditorTabs = createDecorator<IExtHostEditorTabs>('IExtHostEditorTabs');
type AnyTabInput = TextTabInput | TextDiffTabInput;
class ExtHostEditorTab {
private _apiObject: vscode.Tab | undefined;
private _dto!: IEditorTabDto;
private _input: AnyTabInput | undefined;
private readonly _activeTabIdGetter: () => string;
constructor(dto: IEditorTabDto, activeTabIdGetter: () => string) {
this._activeTabIdGetter = activeTabIdGetter;
this.acceptDtoUpdate(dto);
}
get apiObject(): vscode.Tab {
// Don't want to lose reference to parent `this` in the getters
const that = this;
if (!this._apiObject) {
this._apiObject = Object.freeze({
get isActive() {
// We use a getter function here to always ensure at most 1 active tab per group and prevent iteration for being required
return that._dto.id === that._activeTabIdGetter();
},
get label() {
return that._dto.label;
},
get input() {
return that._input;
},
get isDirty() {
return that._dto.isDirty;
},
get isPinned() {
return that._dto.isDirty;
},
get viewColumn() {
return typeConverters.ViewColumn.to(that._dto.viewColumn);
}
});
}
return this._apiObject;
}
get tabId(): string {
return this._dto.id;
}
acceptDtoUpdate(dto: IEditorTabDto) {
this._dto = dto;
this._input = this._initInput();
}
private _initInput() {
switch (this._dto.input.kind) {
case TabInputKind.TextInput:
return new TextTabInput(URI.revive(this._dto.input.uri));
case TabInputKind.TextDiffInput:
return new TextDiffTabInput(URI.revive(this._dto.input.original), URI.revive(this._dto.input.modified));
case TabInputKind.CustomEditorInput:
return new CustomEditorTabInput(URI.revive(this._dto.input.uri), this._dto.input.viewType);
case TabInputKind.NotebookInput:
return new NotebookEditorTabInput(URI.revive(this._dto.input.uri), this._dto.input.notebookType);
case TabInputKind.NotebookDiffInput:
return new NotebookEditorDiffTabInput(URI.revive(this._dto.input.original), URI.revive(this._dto.input.modified), this._dto.input.notebookType);
default:
return undefined;
}
}
}
class ExtHostEditorTabGroup {
private _apiObject: vscode.TabGroup | undefined;
private _dto: IEditorTabGroupDto;
private _tabs: ExtHostEditorTab[] = [];
private _activeTabId: string = '';
private _activeGroupIdGetter: () => number | undefined;
constructor(dto: IEditorTabGroupDto, proxy: MainThreadEditorTabsShape, activeGroupIdGetter: () => number | undefined) {
this._dto = dto;
this._activeGroupIdGetter = activeGroupIdGetter;
// Construct all tabs from the given dto
for (const tabDto of dto.tabs) {
if (tabDto.isActive) {
this._activeTabId = tabDto.id;
}
this._tabs.push(new ExtHostEditorTab(tabDto, () => this.activeTabId()));
}
}
get apiObject(): vscode.TabGroup {
// Don't want to lose reference to parent `this` in the getters
const that = this;
if (!this._apiObject) {
this._apiObject = Object.freeze({
get isActive() {
// We use a getter function here to always ensure at most 1 active group and prevent iteration for being required
return that._dto.groupId === that._activeGroupIdGetter();
},
get viewColumn() {
return typeConverters.ViewColumn.to(that._dto.viewColumn);
},
get activeTab() {
return that._tabs.find(tab => tab.tabId === that._activeTabId)?.apiObject;
},
get tabs() {
return that._tabs.map(tab => tab.apiObject);
}
});
}
return this._apiObject;
}
get groupId(): number {
return this._dto.groupId;
}
get tabs(): ExtHostEditorTab[] {
return this._tabs;
}
acceptGroupDtoUpdate(dto: IEditorTabGroupDto) {
this._dto = dto;
}
acceptTabDtoUpdate(dto: IEditorTabDto) {
const tab = this._tabs.find(extHostTab => extHostTab.tabId === dto.id);
if (!tab) {
throw new Error('INVALID tab');
}
if (dto.isActive) {
this._activeTabId = dto.id;
}
tab.acceptDtoUpdate(dto);
return tab;
}
// Not a getter since it must be a function to be used as a callback for the tabs
activeTabId(): string {
return this._activeTabId;
}
}
export class ExtHostEditorTabs implements IExtHostEditorTabs {
readonly _serviceBrand: undefined;
private readonly _proxy: MainThreadEditorTabsShape;
private readonly _onDidChangeTab = new Emitter<vscode.Tab>();
private readonly _onDidChangeTabGroup = new Emitter<void>();
private readonly _onDidChangeActiveTabGroup = new Emitter<vscode.TabGroup | undefined>();
private _activeGroupId: number | undefined;
private _extHostTabGroups: ExtHostEditorTabGroup[] = [];
private _apiObject: vscode.TabGroups | undefined;
constructor(@IExtHostRpcService extHostRpc: IExtHostRpcService) {
this._proxy = extHostRpc.getProxy(MainContext.MainThreadEditorTabs);
}
get tabGroups(): vscode.TabGroups {
if (!this._apiObject) {
const that = this;
const obj: vscode.TabGroups = {
// never changes -> simple value
onDidChangeTabGroup: that._onDidChangeTabGroup.event,
onDidChangeActiveTabGroup: that._onDidChangeActiveTabGroup.event,
onDidChangeTab: that._onDidChangeTab.event,
// dynamic -> getters
get groups() {
return Object.freeze(that._extHostTabGroups.map(group => group.apiObject));
},
get activeTabGroup() {
const activeTabGroupId = that._activeGroupId;
if (activeTabGroupId === undefined) {
return undefined;
}
return that._extHostTabGroups.find(candidate => candidate.groupId === activeTabGroupId)?.apiObject;
},
close: async (tab: vscode.Tab | vscode.Tab[], preserveFocus?: boolean) => {
const tabs = Array.isArray(tab) ? tab : [tab];
const extHostTabIds: string[] = [];
for (const tab of tabs) {
const extHostTab = this._findExtHostTabFromApi(tab);
if (!extHostTab) {
throw new Error('Tab close: Invalid tab not found!');
}
extHostTabIds.push(extHostTab.tabId);
}
this._proxy.$closeTab(extHostTabIds, preserveFocus);
return;
},
move: async (tab: vscode.Tab, viewColumn: ViewColumn, index: number, preservceFocus?: boolean) => {
const extHostTab = this._findExtHostTabFromApi(tab);
if (!extHostTab) {
throw new Error('Invalid tab');
}
this._proxy.$moveTab(extHostTab.tabId, index, typeConverters.ViewColumn.from(viewColumn), preservceFocus);
return;
}
};
this._apiObject = Object.freeze(obj);
}
return this._apiObject;
}
private _findExtHostTabFromApi(apiTab: vscode.Tab): ExtHostEditorTab | undefined {
for (const group of this._extHostTabGroups) {
for (const tab of group.tabs) {
if (tab.apiObject === apiTab) {
return tab;
}
}
}
return;
}
$acceptEditorTabModel(tabGroups: IEditorTabGroupDto[]): void {
this._extHostTabGroups = tabGroups.map(tabGroup => {
const group = new ExtHostEditorTabGroup(tabGroup, this._proxy, () => this._activeGroupId);
return group;
});
// Set the active tab group id
const activeTabGroupId = tabGroups.find(group => group.isActive === true)?.groupId;
if (this._activeGroupId !== activeTabGroupId) {
this._activeGroupId = activeTabGroupId;
this._onDidChangeActiveTabGroup.fire(this.tabGroups.activeTabGroup);
}
this._onDidChangeTabGroup.fire();
}
$acceptTabGroupUpdate(groupDto: IEditorTabGroupDto) {
const group = this._extHostTabGroups.find(group => group.groupId === groupDto.groupId);
if (!group) {
throw new Error('Update Group IPC call received before group creation.');
}
group.acceptGroupDtoUpdate(groupDto);
if (groupDto.isActive) {
const oldActiveGroupId = this._activeGroupId;
this._activeGroupId = groupDto.groupId;
if (oldActiveGroupId !== this._activeGroupId) {
this._onDidChangeActiveTabGroup.fire(group.apiObject);
}
}
this._onDidChangeTabGroup.fire();
}
$acceptTabUpdate(groupId: number, tabDto: IEditorTabDto) {
const group = this._extHostTabGroups.find(group => group.groupId === groupId);
if (!group) {
throw new Error('Update Tabs IPC call received before group creation.');
}
const tab = group.acceptTabDtoUpdate(tabDto);
this._onDidChangeTab.fire(tab.apiObject);
}
/**
* Compares two groups determining if they're the same or different
* @param group1 The first group to compare
* @param group2 The second group to compare
* @returns True if different, false otherwise
*/
// private groupDiff(group1: IEditorTabGroup | undefined, group2: IEditorTabGroup | undefined): boolean {
// if (group1 === group2) {
// return false;
// }
// // They would be reference equal if both undefined so one is undefined and one isn't hence different
// if (!group1 || !group2) {
// return true;
// }
// if (group1.isActive !== group2.isActive
// || group1.viewColumn !== group2.viewColumn
// || group1.tabs.length !== group2.tabs.length
// ) {
// return true;
// }
// for (let i = 0; i < group1.tabs.length; i++) {
// if (this.tabDiff(group1.tabs[i], group2.tabs[i])) {
// return true;
// }
// }
// return false;
// }
/**
* Compares two tabs determining if they're the same or different
* @param tab1 The first tab to compare
* @param tab2 The second tab to compare
* @returns True if different, false otherwise
*/
// private tabDiff(tab1: IEditorTab | undefined, tab2: IEditorTab | undefined): boolean {
// if (tab1 === tab2) {
// return false;
// }
// // They would be reference equal if both undefined so one is undefined and one isn't therefore they're different
// if (!tab1 || !tab2) {
// return true;
// }
// if (tab1.label !== tab2.label
// || tab1.viewColumn !== tab2.viewColumn
// || tab1.resource?.toString() !== tab2.resource?.toString()
// || tab1.viewType !== tab2.viewType
// || tab1.isActive !== tab2.isActive
// || tab1.isPinned !== tab2.isPinned
// || tab1.isDirty !== tab2.isDirty
// || tab1.additionalResourcesAndViewTypes.length !== tab2.additionalResourcesAndViewTypes.length
// ) {
// return true;
// }
// for (let i = 0; i < tab1.additionalResourcesAndViewTypes.length; i++) {
// const tab1Resource = tab1.additionalResourcesAndViewTypes[i].resource;
// const tab2Resource = tab2.additionalResourcesAndViewTypes[i].resource;
// const tab1viewType = tab1.additionalResourcesAndViewTypes[i].viewType;
// const tab2viewType = tab2.additionalResourcesAndViewTypes[i].viewType;
// if (tab1Resource?.toString() !== tab2Resource?.toString() || tab1viewType !== tab2viewType) {
// return true;
// }
// }
// return false;
// }
}