Pull web link support into an addon

demo/main.js

@@ -3,13 +3,15 @@ import * as attach from '../build/addons/attach/attach';
 import * as fit from '../build/addons/fit/fit';
 import * as fullscreen from '../build/addons/fullscreen/fullscreen';
 import * as search from '../build/addons/search/search';
+import * as webLinks from '../build/addons/webLinks/webLinks';
 import * as winptyCompat from '../build/addons/winptyCompat/winptyCompat';
 
 
 Terminal.applyAddon(attach);
 Terminal.applyAddon(fit);
 Terminal.applyAddon(fullscreen);
 Terminal.applyAddon(search);
+Terminal.applyAddon(webLinks);
 Terminal.applyAddon(winptyCompat);
 
 
@@ -121,6 +123,7 @@ function createTerminal() {
 
   term.open(terminalContainer);
   term.winptyCompatInit();
+  term.webLinksInit();
   term.fit();
   term.focus();
 

gulpfile.js

@@ -23,7 +23,7 @@ const tsProject = ts.createProject('tsconfig.json');
 const srcDir = tsProject.config.compilerOptions.rootDir;
 let outDir = tsProject.config.compilerOptions.outDir;
 
-const addons = ['attach', 'fit', 'fullscreen', 'search', 'terminado', 'winptyCompat', 'zmodem'];
+const addons = fs.readdirSync(`${__dirname}/src/addons`);
 
 // Under some environments like TravisCI, this comes out at absolute which can
 // break the build. This ensures that the outDir is absolute.

src/Linkifier.test.ts

@@ -101,12 +101,6 @@ describe('Linkifier', () => {
       linkifier.attachToDom(mouseZoneManager);
     });
 
-    describe('http links', () => {
-      it('should allow ~ character in URI path', (done) => {
-        assertLinkifiesEntireRow('http://foo.com/a~b#c~d?e~f', done);
-      });
-    });
-
     describe('link matcher', () => {
       it('should match a single link', done => {
         assertLinkifiesRow('foo', /foo/, [{x: 0, length: 3}], done);
@@ -200,19 +194,19 @@ describe('Linkifier', () => {
       it('should order the list from highest priority to lowest #1', () => {
         const aId = linkifier.registerLinkMatcher(/a/, () => {}, { priority: 1 });
         const bId = linkifier.registerLinkMatcher(/b/, () => {}, { priority: -1 });
-        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [aId, 0, bId]);
+        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [aId, bId]);
       });
 
       it('should order the list from highest priority to lowest #2', () => {
         const aId = linkifier.registerLinkMatcher(/a/, () => {}, { priority: -1 });
         const bId = linkifier.registerLinkMatcher(/b/, () => {}, { priority: 1 });
-        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [bId, 0, aId]);
+        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [bId, aId]);
       });
 
       it('should order items of equal priority in the order they are added', () => {
         const aId = linkifier.registerLinkMatcher(/a/, () => {}, { priority: 0 });
         const bId = linkifier.registerLinkMatcher(/b/, () => {}, { priority: 0 });
-        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [0, aId, bId]);
+        assert.deepEqual(linkifier.linkMatchers.map(lm => lm.id), [aId, bId]);
       });
     });
   });

src/Linkifier.ts

@@ -8,30 +8,6 @@ import { ILinkHoverEvent, ILinkMatcher, LinkMatcherHandler, LinkMatcherValidatio
 import { MouseZone } from './input/MouseZoneManager';
 import { EventEmitter } from './EventEmitter';
 
-const protocolClause = '(https?:\\/\\/)';
-const domainCharacterSet = '[\\da-z\\.-]+';
-const negatedDomainCharacterSet = '[^\\da-z\\.-]+';
-const domainBodyClause = '(' + domainCharacterSet + ')';
-const tldClause = '([a-z\\.]{2,6})';
-const ipClause = '((\\d{1,3}\\.){3}\\d{1,3})';
-const localHostClause = '(localhost)';
-const portClause = '(:\\d{1,5})';
-const hostClause = '((' + domainBodyClause + '\\.' + tldClause + ')|' + ipClause + '|' + localHostClause + ')' + portClause + '?';
-const pathClause = '(\\/[\\/\\w\\.\\-%~]*)*';
-const queryStringHashFragmentCharacterSet = '[0-9\\w\\[\\]\\(\\)\\/\\?\\!#@$%&\'*+,:;~\\=\\.\\-]*';
-const queryStringClause = '(\\?' + queryStringHashFragmentCharacterSet + ')?';
-const hashFragmentClause = '(#' + queryStringHashFragmentCharacterSet + ')?';
-const negatedPathCharacterSet = '[^\\/\\w\\.\\-%]+';
-const bodyClause = hostClause + pathClause + queryStringClause + hashFragmentClause;
-const start = '(?:^|' + negatedDomainCharacterSet + ')(';
-const end = ')($|' + negatedPathCharacterSet + ')';
-const strictUrlRegex = new RegExp(start + protocolClause + bodyClause + end);
-
-/**
- * The ID of the built in http(s) link matcher.
- */
-const HYPERTEXT_LINK_MATCHER_ID = 0;
-
 /**
  * The Linkifier applies links to rows shortly after they have been refreshed.
  */
@@ -47,7 +23,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
 
   private _mouseZoneManager: IMouseZoneManager;
   private _rowsTimeoutId: number;
-  private _nextLinkMatcherId = HYPERTEXT_LINK_MATCHER_ID;
+  private _nextLinkMatcherId = 0;
   private _rowsToLinkify: {start: number, end: number};
 
   constructor(
@@ -58,7 +34,6 @@ export class Linkifier extends EventEmitter implements ILinkifier {
       start: null,
       end: null
     };
-    this.registerLinkMatcher(strictUrlRegex, null, { matchIndex: 1 });
   }
 
   /**
@@ -111,23 +86,6 @@ export class Linkifier extends EventEmitter implements ILinkifier {
     this._rowsToLinkify.end = null;
   }
 
-  /**
-   * Attaches a handler for hypertext links, overriding default <a> behavior for
-   * tandard http(s) links.
-   * @param handler The handler to use, this can be cleared with null.
-   */
-  public setHypertextLinkHandler(handler: LinkMatcherHandler): void {
-    this._linkMatchers[HYPERTEXT_LINK_MATCHER_ID].handler = handler;
-  }
-
-  /**
-   * Attaches a validation callback for hypertext links.
-   * @param callback The callback to use, this can be cleared with null.
-   */
-  public setHypertextValidationCallback(callback: LinkMatcherValidationCallback): void {
-    this._linkMatchers[HYPERTEXT_LINK_MATCHER_ID].validationCallback = callback;
-  }
-
   /**
    * Registers a link matcher, allowing custom link patterns to be matched and
    * handled.
@@ -139,7 +97,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * @return The ID of the new matcher, this can be used to deregister.
    */
   public registerLinkMatcher(regex: RegExp, handler: LinkMatcherHandler, options: ILinkMatcherOptions = {}): number {
-    if (this._nextLinkMatcherId !== HYPERTEXT_LINK_MATCHER_ID && !handler) {
+    if (!handler) {
       throw new Error('handler must be defined');
     }
     const matcher: ILinkMatcher = {
@@ -185,8 +143,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * @return Whether a link matcher was found and deregistered.
    */
   public deregisterLinkMatcher(matcherId: number): boolean {
-    // ID 0 is the hypertext link matcher which cannot be deregistered
-    for (let i = 1; i < this._linkMatchers.length; i++) {
+    for (let i = 0; i < this._linkMatchers.length; i++) {
       if (this._linkMatchers[i].id === matcherId) {
         this._linkMatchers.splice(i, 1);
         return true;
@@ -222,7 +179,6 @@ export class Linkifier extends EventEmitter implements ILinkifier {
   private _doLinkifyRow(rowIndex: number, text: string, matcher: ILinkMatcher, offset: number = 0): void {
     // Iterate over nodes as we want to consider text nodes
     let result = [];
-    const isHttpLinkMatcher = matcher.id === HYPERTEXT_LINK_MATCHER_ID;
 
     // Find the first match
     let match = text.match(matcher.regex);

src/Terminal.ts

@@ -1326,36 +1326,6 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.customKeyEventHandler = customKeyEventHandler;
   }
 
-  /**
-   * Attaches a http(s) link handler, forcing web links to behave differently to
-   * regular <a> tags. This will trigger a refresh as links potentially need to be
-   * reconstructed. Calling this with null will remove the handler.
-   * @param handler The handler callback function.
-   */
-  public setHypertextLinkHandler(handler: LinkMatcherHandler): void {
-    if (!this.linkifier) {
-      throw new Error('Cannot attach a hypertext link handler before Terminal.open is called');
-    }
-    this.linkifier.setHypertextLinkHandler(handler);
-    // Refresh to force links to refresh
-    this.refresh(0, this.rows - 1);
-  }
-
-  /**
-   * Attaches a validation callback for hypertext links. This is useful to use
-   * validation logic or to do something with the link's element and url.
-   * @param callback The callback to use, this can
-   * be cleared with null.
-   */
-  public setHypertextValidationCallback(callback: LinkMatcherValidationCallback): void {
-    if (!this.linkifier) {
-      throw new Error('Cannot attach a hypertext validation callback before Terminal.open is called');
-    }
-    this.linkifier.setHypertextValidationCallback(callback);
-    // // Refresh to force links to refresh
-    this.refresh(0, this.rows - 1);
-  }
-
   /**
    * Registers a link matcher, allowing custom link patterns to be matched and
    * handled.
@@ -1367,23 +1337,18 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
    * @return The ID of the new matcher, this can be used to deregister.
    */
   public registerLinkMatcher(regex: RegExp, handler: LinkMatcherHandler, options?: ILinkMatcherOptions): number {
-    if (this.linkifier) {
-      const matcherId = this.linkifier.registerLinkMatcher(regex, handler, options);
-      this.refresh(0, this.rows - 1);
-      return matcherId;
-    }
-    return 0;
+    const matcherId = this.linkifier.registerLinkMatcher(regex, handler, options);
+    this.refresh(0, this.rows - 1);
+    return matcherId;
   }
 
   /**
    * Deregisters a link matcher if it has been registered.
    * @param matcherId The link matcher's ID (returned after register)
    */
   public deregisterLinkMatcher(matcherId: number): void {
-    if (this.linkifier) {
-      if (this.linkifier.deregisterLinkMatcher(matcherId)) {
-        this.refresh(0, this.rows - 1);
-      }
+    if (this.linkifier.deregisterLinkMatcher(matcherId)) {
+      this.refresh(0, this.rows - 1);
     }
   }
 

src/Types.ts

@@ -14,7 +14,7 @@ export type XtermListener = (...args: any[]) => void;
 export type CharData = [number, string, number, number];
 export type LineData = CharData[];
 
-export type LinkMatcherHandler = (event: MouseEvent, uri: string) => boolean | void;
+export type LinkMatcherHandler = (event: MouseEvent, uri: string) => void;
 export type LinkMatcherValidationCallback = (uri: string, callback: (isValid: boolean) => void) => void;
 
 export enum LinkHoverEventTypes {
@@ -298,8 +298,6 @@ export interface ISelectionManager {
 export interface ILinkifier extends IEventEmitter {
   attachToDom(mouseZoneManager: IMouseZoneManager): void;
   linkifyRows(start: number, end: number): void;
-  setHypertextLinkHandler(handler: LinkMatcherHandler): void;
-  setHypertextValidationCallback(callback: LinkMatcherValidationCallback): void;
   registerLinkMatcher(regex: RegExp, handler: LinkMatcherHandler, options?: ILinkMatcherOptions): number;
   deregisterLinkMatcher(matcherId: number): boolean;
 }

src/addons/webLinks/package.json

@@ -0,0 +1,5 @@
+{
+  "name": "xterm.weblinks",
+  "main": "weblinks.js",
+  "private": true
+}

src/addons/webLinks/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "es5",
+    "rootDir": ".",
+    "outDir": "../../../lib/addons/webLinks/",
+    "sourceMap": true,
+    "removeComments": true,
+    "declaration": true
+  }
+}

src/addons/webLinks/webLinks.test.ts

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { assert, expect } from 'chai';
+
+import * as webLinks from './webLinks';
+
+class MockTerminal {
+  public regex: RegExp;
+  public handler: (event: MouseEvent, uri: string) => void;
+  public options?: any;
+
+  public registerLinkMatcher(regex: RegExp, handler: (event: MouseEvent, uri: string) => void, options?: any): number {
+    this.regex = regex;
+    this.handler = handler;
+    this.options = options;
+    return 0;
+  }
+}
+
+describe('webLinks addon', () => {
+  describe('apply', () => {
+    it('should do register the `webLinksInit` method', () => {
+      webLinks.apply(<any>MockTerminal);
+      assert.equal(typeof (<any>MockTerminal).prototype.webLinksInit, 'function');
+    });
+  });
+
+  it('should allow ~ character in URI path', () => {
+    const term = new MockTerminal();
+    webLinks.webLinksInit(<any>term);
+
+    const row = '  http://foo.com/a~b#c~d?e~f  ';
+
+    let match = row.match(term.regex);
+    let uri = match[term.options.matchIndex];
+
+    assert.equal(uri, 'http://foo.com/a~b#c~d?e~f');
+  });
+});

src/addons/webLinks/webLinks.ts

@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+/// <reference path="../../../typings/xterm.d.ts"/>
+
+import { Terminal, ILinkMatcherOptions } from 'xterm';
+
+const protocolClause = '(https?:\\/\\/)';
+const domainCharacterSet = '[\\da-z\\.-]+';
+const negatedDomainCharacterSet = '[^\\da-z\\.-]+';
+const domainBodyClause = '(' + domainCharacterSet + ')';
+const tldClause = '([a-z\\.]{2,6})';
+const ipClause = '((\\d{1,3}\\.){3}\\d{1,3})';
+const localHostClause = '(localhost)';
+const portClause = '(:\\d{1,5})';
+const hostClause = '((' + domainBodyClause + '\\.' + tldClause + ')|' + ipClause + '|' + localHostClause + ')' + portClause + '?';
+const pathClause = '(\\/[\\/\\w\\.\\-%~]*)*';
+const queryStringHashFragmentCharacterSet = '[0-9\\w\\[\\]\\(\\)\\/\\?\\!#@$%&\'*+,:;~\\=\\.\\-]*';
+const queryStringClause = '(\\?' + queryStringHashFragmentCharacterSet + ')?';
+const hashFragmentClause = '(#' + queryStringHashFragmentCharacterSet + ')?';
+const negatedPathCharacterSet = '[^\\/\\w\\.\\-%]+';
+const bodyClause = hostClause + pathClause + queryStringClause + hashFragmentClause;
+const start = '(?:^|' + negatedDomainCharacterSet + ')(';
+const end = ')($|' + negatedPathCharacterSet + ')';
+const strictUrlRegex = new RegExp(start + protocolClause + bodyClause + end);
+
+function handleLink(event: MouseEvent, uri: string): void {
+  window.open(uri, '_blank');
+}
+
+/**
+ * Initialize the web links addon, registering the link matcher.
+ * @param term The terminal to use web links within.
+ * @param handler A custom handler to use.
+ * @param options Custom options to use, matchIndex will always be ignored.
+ */
+export function webLinksInit(term: Terminal, handler: (event: MouseEvent, uri: string) => void = handleLink, options: ILinkMatcherOptions = {}): void {
+  options.matchIndex = 1;
+  term.registerLinkMatcher(strictUrlRegex, handler, options);
+}
+
+export function apply(terminalConstructor: typeof Terminal): void {
+  (<any>terminalConstructor.prototype).webLinksInit = function (handler?: (event: MouseEvent, uri: string) => void, options?: ILinkMatcherOptions): void {
+    webLinksInit(this, handler, options);
+  };
+}

src/addons/winptyCompat/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "xterm.winptyCompat",
+  "name": "xterm.winptycompat",
   "main": "winptyCompat.js",
   "private": true
 }

typings/xterm.d.ts

@@ -395,7 +395,7 @@ declare module 'xterm' {
      * @param options Options for the link matcher.
      * @return The ID of the new matcher, this can be used to deregister.
      */
-    registerLinkMatcher(regex: RegExp, handler: (event: MouseEvent, uri: string) => boolean | void, options?: ILinkMatcherOptions): number;
+    registerLinkMatcher(regex: RegExp, handler: (event: MouseEvent, uri: string) => void, options?: ILinkMatcherOptions): number;
 
     /**
      * (EXPERIMENTAL) Deregisters a link matcher if it has been registered.