Merge branch 'master' into 1103_search_wide_emoji

.travis.yml

@@ -1,7 +1,6 @@
 language: node_js
 os:
   - linux
-  - osx
 node_js:
   - 6
 before_install:

README.md

@@ -120,6 +120,11 @@ computational environment for Jupyter, supporting interactive data science and s
 - [**VTerm**](https://github.com/vterm/vterm): Extensible terminal emulator based on Electron and React.
 - [**electerm**](http://electerm.html5beta.com): electerm is a terminal/ssh/sftp client(mac, win, linux) based on electron/node-pty/xterm.
 - [**Kubebox**](https://github.com/astefanutti/kubebox): Terminal console for Kubernetes clusters.
+- [**Azure Cloud Shell**](https://shell.azure.com): Azure Cloud Shell is a Microsoft-managed admin machine built on Azure, for Azure.
+- [**atom-xterm**](https://atom.io/packages/atom-xterm): Atom plugin for providing terminals inside your Atom workspace.
+- [**rtty**](https://github.com/zhaojh329/rtty): A reverse proxy WebTTY. It is composed of the client and the server.
+- [**Pisth**](https://github.com/ColdGrub1384/Pisth): An SFTP and SSH client for iOS
+- [**abstruse**](https://github.com/bleenco/abstruse): Abstruse CI is a continuous integration platform based on Node.JS and Docker.
 
 Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it in our list.
 

demo/index.html

@@ -23,6 +23,9 @@
           <p>
             <label><input type="checkbox" id="option-cursor-blink"> cursorBlink</label>
           </p>
+          <p>
+            <label><input type="checkbox" id="option-mac-option-is-meta"> macOptionIsMeta</label>
+          </p>
           <p>
             <label>
               cursorStyle

demo/main.js

@@ -27,6 +27,7 @@ var terminalContainer = document.getElementById('terminal-container'),
     optionElements = {
       cursorBlink: document.querySelector('#option-cursor-blink'),
       cursorStyle: document.querySelector('#option-cursor-style'),
+      macOptionIsMeta: document.querySelector('#option-mac-option-is-meta'),
       scrollback: document.querySelector('#option-scrollback'),
       tabstopwidth: document.querySelector('#option-tabstopwidth'),
       bellStyle: document.querySelector('#option-bell-style')
@@ -72,6 +73,9 @@ optionElements.cursorStyle.addEventListener('change', function () {
 optionElements.bellStyle.addEventListener('change', function () {
   term.setOption('bellStyle', optionElements.bellStyle.value);
 });
+optionElements.macOptionIsMeta.addEventListener('change', function () {
+  term.setOption('macOptionIsMeta', optionElements.macOptionIsMeta.checked);
+});
 optionElements.scrollback.addEventListener('change', function () {
   term.setOption('scrollback', parseInt(optionElements.scrollback.value, 10));
 });
@@ -87,6 +91,7 @@ function createTerminal() {
     terminalContainer.removeChild(terminalContainer.children[0]);
   }
   term = new Terminal({
+    macOptionIsMeta: optionElements.macOptionIsMeta.enabled,
     cursorBlink: optionElements.cursorBlink.checked,
     scrollback: parseInt(optionElements.scrollback.value, 10),
     tabStopWidth: parseInt(optionElements.tabstopwidth.value, 10)

fixtures/typings-test/typings-test.ts

@@ -144,6 +144,9 @@ namespace methods_core {
       const r20: string = t.getOption('bellStyle');
       const r21: boolean = t.getOption('enableBold');
       const r22: number = t.getOption('letterSpacing');
+      const r23: boolean = t.getOption('macOptionIsMeta');
+      const r24: string = t.getOption('fontWeight');
+      const r25: string = t.getOption('fontWeightBold');
     }
     {
       const t: Terminal = new Terminal();
@@ -156,7 +159,10 @@ namespace methods_core {
       t.setOption('cursorBlink', true);
       t.setOption('debug', true);
       t.setOption('disableStdin', true);
-      t.setOption('enableBold', true);
+      t.setOption('fontWeight', 'normal');
+      t.setOption('fontWeight', 'bold');
+      t.setOption('fontWeightBold', 'normal');
+      t.setOption('fontWeightBold', 'bold');
       t.setOption('popOnBell', true);
       t.setOption('screenKeys', true);
       t.setOption('useFlowControl', true);
@@ -177,6 +183,7 @@ namespace methods_core {
       t.setOption('lineHeight', 1);
       t.setOption('fontFamily', 'foo');
       t.setOption('theme', {background: '#ff0000'});
+      t.setOption('macOptionIsMeta', true);
     }
   }
   namespace scrolling {

gulpfile.js

@@ -18,11 +18,13 @@ const ts = require('gulp-typescript');
 const util = require('gulp-util');
 const webpack = require('webpack-stream');
 
-let buildDir = process.env.BUILD_DIR || 'build';
+const buildDir = process.env.BUILD_DIR || 'build';
-let tsProject = ts.createProject('tsconfig.json');
+const tsProject = ts.createProject('tsconfig.json');
-let srcDir = tsProject.config.compilerOptions.rootDir;
+const srcDir = tsProject.config.compilerOptions.rootDir;
 let outDir = tsProject.config.compilerOptions.outDir;
 
+const addons = ['attach', 'fit', 'fullscreen', 'search', 'terminado', 'winptyCompat', 'zmodem'];
+
 // Under some environments like TravisCI, this comes out at absolute which can
 // break the build. This ensures that the outDir is absolute.
 if (path.normalize(outDir).indexOf(__dirname) !== 0) {
@@ -45,15 +47,19 @@ gulp.task('tsc', function () {
     tsResult.dts.pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''})).pipe(gulp.dest(outDir))
   );
 
-  let addons = ['attach', 'fit', 'fullscreen', 'search', 'terminado', 'winptyCompat', 'zmodem'];
   let addonStreams = addons.map(function(addon) {
     fs.emptyDirSync(`${outDir}/addons/${addon}`);
 
     let tsProjectAddon = ts.createProject(`./src/addons/${addon}/tsconfig.json`);
     let tsResultAddon = tsProjectAddon.src().pipe(sourcemaps.init()).pipe(tsProjectAddon());
-    let tscAddon = tsResultAddon.js
+    let tscAddon = merge(
-      .pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''}))
+      tsResultAddon.js
-      .pipe(gulp.dest(`${outDir}/addons/${addon}`));
+        .pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''}))
+        .pipe(gulp.dest(`${outDir}/addons/${addon}`)),
+      tsResultAddon.dts
+        .pipe(sourcemaps.write('.', {includeContent: false, sourceRoot: ''}))
+        .pipe(gulp.dest(`${outDir}/addons/${addon}`))
+    )
 
     return tscAddon;
   });
@@ -103,45 +109,29 @@ gulp.task('browserify', ['tsc'], function() {
 });
 
 gulp.task('browserify-addons', ['tsc'], function() {
-  let searchOptions = {
+  const bundles = addons.map((addon) => {
-    basedir: `${buildDir}/addons/search`,
+    const addonOptions = {
-    debug: true,
+      basedir: `${buildDir}/addons/${addon}`,
-    entries: [`${outDir}/addons/search/search.js`],
+      debug: true,
-    cache: {},
+      entries: [`${outDir}/addons/${addon}/${addon}.js`],
-    packageCache: {}
+      standalone: addon,
-  };
+      cache: {},
-  let searchBundle = browserify(searchOptions)
+      packageCache: {}
-        .external(path.join(outDir, 'Terminal.js'))
+    };
-        .bundle()
-        .pipe(source('./addons/search/search.js'))
-        .pipe(buffer())
-        .pipe(sourcemaps.init({loadMaps: true, sourceRoot: ''}))
-        .pipe(sourcemaps.write('./'))
-        .pipe(gulp.dest(buildDir));
 
-  let winptyCompatOptions = {
+    const addonBundle = browserify(addonOptions)
-    basedir: `${buildDir}/addons/winptyCompat`,
+      .external(path.join(outDir, 'Terminal.js'))
-    debug: true,
+      .bundle()
-    entries: [`${outDir}/addons/winptyCompat/winptyCompat.js`],
+      .pipe(source(`./addons/${addon}/${addon}.js`))
-    cache: {},
+      .pipe(buffer())
-    packageCache: {}
+      .pipe(sourcemaps.init({loadMaps: true, sourceRoot: ''}))
-  };
+      .pipe(sourcemaps.write('./'))
-  let winptyCompatBundle = browserify(winptyCompatOptions)
+      .pipe(gulp.dest(buildDir));
-        .external(path.join(outDir, 'Terminal.js'))
-        .bundle()
-        .pipe(source('./addons/winptyCompat/winptyCompat.js'))
-        .pipe(buffer())
-        .pipe(sourcemaps.init({loadMaps: true, sourceRoot: ''}))
-        .pipe(sourcemaps.write('./'))
-        .pipe(gulp.dest(buildDir));
 
-  // Copy all add-ons from outDir to buildDir
+    return addonBundle;
-  let copyAddons = gulp.src([
+  });
-    // Copy JS addons
-    `${outDir}/addons/**/*`
-  ]).pipe(gulp.dest(`${buildDir}/addons`));
 
-  return merge(searchBundle, winptyCompatBundle, copyAddons);
+  return merge(...bundles);
 });
 
 gulp.task('instrument-test', function () {
@@ -189,9 +179,11 @@ gulp.task('sorcery', ['browserify'], function () {
 });
 
 gulp.task('sorcery-addons', ['browserify-addons'], function () {
-  var chain = sorcery.loadSync(`${buildDir}/addons/search/search.js`);
+  addons.forEach((addon) => {
-  chain.apply();
+    const chain = sorcery.loadSync(`${buildDir}/addons/${addon}/${addon}.js`);
-  chain.writeSync();
+    chain.apply();
+    chain.writeSync();
+  })
 });
 
 gulp.task('webpack', ['build'], function() {

package.json

@@ -66,7 +66,7 @@
     "node-pty": "^0.7.2",
     "nodemon": "1.10.2",
     "sorcery": "^0.10.0",
-    "tslint": "^4.0.2",
+    "tslint": "^5.9.1",
     "typescript": "~2.4.0",
     "vinyl-buffer": "^1.0.0",
     "vinyl-source-stream": "^1.1.0",

src/Buffer.ts

@@ -121,11 +121,6 @@ export class Buffer implements IBuffer {
       if (this._terminal.cols < newCols) {
         const ch: CharData = [this._terminal.defAttr, ' ', 1, 32]; // does xterm use the default attr?
         for (let i = 0; i < this._lines.length; i++) {
-          // TODO: This should be removed, with tests setup for the case that was
-          // causing the underlying bug, see https://github.com/sourcelair/xterm.js/issues/824
-          if (this._lines.get(i) === undefined) {
-            this._lines.set(i, this._terminal.blankLine(undefined, undefined, newCols));
-          }
           while (this._lines.get(i).length < newCols) {
             this._lines.get(i).push(ch);
           }

src/BufferSet.ts

@@ -61,24 +61,35 @@ export class BufferSet extends EventEmitter implements IBufferSet {
    * Sets the normal Buffer of the BufferSet as its currently active Buffer
    */
   public activateNormalBuffer(): void {
+    if (this._activeBuffer === this._normal) {
+      return;
+    }
     // The alt buffer should always be cleared when we switch to the normal
     // buffer. This frees up memory since the alt buffer should always be new
     // when activated.
     this._alt.clear();
-
     this._activeBuffer = this._normal;
-    this.emit('activate', this._normal);
+    this.emit('activate', {
+      activeBuffer: this._normal,
+      inactiveBuffer: this._alt
+    });
   }
 
   /**
    * Sets the alt Buffer of the BufferSet as its currently active Buffer
    */
   public activateAltBuffer(): void {
+    if (this._activeBuffer === this._alt) {
+      return;
+    }
     // Since the alt buffer is always cleared when the normal buffer is
     // activated, we want to fill it when switching to it.
     this._alt.fillViewportRows();
     this._activeBuffer = this._alt;
-    this.emit('activate', this._alt);
+    this.emit('activate', {
+      activeBuffer: this._alt,
+      inactiveBuffer: this._normal
+    });
   }
 
   /**

src/Charsets.ts

@@ -3,19 +3,19 @@
  * @license MIT
  */
 
-import { Charset } from './Types';
+import { ICharset } from './Interfaces';
 
 /**
  * The character sets supported by the terminal. These enable several languages
  * to be represented within the terminal with only 8-bit encoding. See ISO 2022
  * for a discussion on character sets. Only VT100 character sets are supported.
  */
-export const CHARSETS: { [key: string]: Charset } = {};
+export const CHARSETS: { [key: string]: ICharset } = {};
 
 /**
  * The default character set, US.
  */
-export const DEFAULT_CHARSET: Charset = CHARSETS['B'];
+export const DEFAULT_CHARSET: ICharset = CHARSETS['B'];
 
 /**
  * DEC Special Character and Line Drawing Set.

src/CompositionHelper.ts

@@ -217,7 +217,7 @@ export class CompositionHelper {
     if (!dontRecurse) {
       setTimeout(() => this.updateCompositionElements(true), 0);
     }
-  };
+  }
 
   /**
    * Clears the textarea's position so that the cursor does not blink on IE.
@@ -226,5 +226,5 @@ export class CompositionHelper {
   private clearTextareaPosition(): void {
     this.textarea.style.left = '';
     this.textarea.style.top = '';
-  };
+  }
 }

src/EscapeSequences.ts

@@ -76,4 +76,4 @@ export namespace C0 {
   export const SP  = '\x20';
   /** Delete (Caret = ^?) */
   export const DEL = '\x7f';
-};
+}

src/InputHandler.ts

@@ -26,7 +26,7 @@ export class InputHandler implements IInputHandler {
     if (char >= ' ') {
       // calculate print space
       // expensive call, therefore we save width in line buffer
-      const ch_width = wcwidth(code);
+      const chWidth = wcwidth(code);
 
       if (this._terminal.charset && this._terminal.charset[char]) {
         char = this._terminal.charset[char];
@@ -36,7 +36,7 @@ export class InputHandler implements IInputHandler {
 
       // insert combining char in last cell
       // FIXME: needs handling after cursor jumps
-      if (!ch_width && this._terminal.buffer.x) {
+      if (!chWidth && this._terminal.buffer.x) {
         // dont overflow left
         if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1]) {
           if (!this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
@@ -56,7 +56,7 @@ export class InputHandler implements IInputHandler {
 
       // goto next line if ch would overflow
       // TODO: needs a global min terminal width of 2
-      if (this._terminal.buffer.x + ch_width - 1 >= this._terminal.cols) {
+      if (this._terminal.buffer.x + chWidth - 1 >= this._terminal.cols) {
         // autowrap - DECAWM
         if (this._terminal.wraparoundMode) {
           this._terminal.buffer.x = 0;
@@ -70,7 +70,7 @@ export class InputHandler implements IInputHandler {
             (<any>this._terminal.buffer.lines.get(this._terminal.buffer.y)).isWrapped = true;
           }
         } else {
-          if (ch_width === 2)  // FIXME: check for xterm behavior
+          if (chWidth === 2)  // FIXME: check for xterm behavior
             return;
         }
       }
@@ -79,7 +79,7 @@ export class InputHandler implements IInputHandler {
       // insert mode: move characters to right
       if (this._terminal.insertMode) {
         // do this twice for a fullwidth char
-        for (let moves = 0; moves < ch_width; ++moves) {
+        for (let moves = 0; moves < chWidth; ++moves) {
           // remove last cell, if it's width is 0
           // we have to adjust the second last cell as well
           const removed = this._terminal.buffer.lines.get(this._terminal.buffer.y + this._terminal.buffer.ybase).pop();
@@ -94,12 +94,12 @@ export class InputHandler implements IInputHandler {
         }
       }
 
-      this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, char, ch_width, char.charCodeAt(0)];
+      this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, char, chWidth, char.charCodeAt(0)];
       this._terminal.buffer.x++;
       this._terminal.updateRange(this._terminal.buffer.y);
 
       // fullwidth char - set next cell width to zero and advance cursor
-      if (ch_width === 2) {
+      if (chWidth === 2) {
         this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, '', 0, undefined];
         this._terminal.buffer.x++;
       }
@@ -928,7 +928,6 @@ export class InputHandler implements IInputHandler {
         case 47: // alt screen buffer
         case 1047: // alt screen buffer
           this._terminal.buffers.activateAltBuffer();
-          this._terminal.selectionManager.setBuffer(this._terminal.buffer);
           this._terminal.viewport.syncScrollArea();
           this._terminal.showCursor();
           break;
@@ -1100,7 +1099,6 @@ export class InputHandler implements IInputHandler {
           // if (params[0] === 1049) {
           //   this.restoreCursor(params);
           // }
-          this._terminal.selectionManager.setBuffer(this._terminal.buffer);
           this._terminal.refresh(0, this._terminal.rows - 1);
           this._terminal.viewport.syncScrollArea();
           this._terminal.showCursor();

src/Interfaces.ts

@@ -3,8 +3,8 @@
  * @license MIT
  */
 
-import { ILinkMatcherOptions } from './Interfaces';
+import { ICharset, ILinkMatcherOptions } from './Interfaces';
-import { LinkMatcherHandler, LinkMatcherValidationCallback, Charset, LineData } from './Types';
+import { LinkMatcherHandler, LinkMatcherValidationCallback, LineData, FontWeight } from './Types';
 import { IColorSet, IRenderer } from './renderer/Interfaces';
 import { IMouseZoneManager } from './input/Interfaces';
 
@@ -74,10 +74,10 @@ export interface IInputHandlingTerminal extends IEventEmitter {
   options: ITerminalOptions;
   cols: number;
   rows: number;
-  charset: Charset;
+  charset: ICharset;
   gcharset: number;
   glevel: number;
-  charsets: Charset[];
+  charsets: ICharset[];
   applicationKeypad: boolean;
   applicationCursor: boolean;
   originMode: boolean;
@@ -116,7 +116,7 @@ export interface IInputHandlingTerminal extends IEventEmitter {
   blankLine(cur?: boolean, isWrapped?: boolean): LineData;
   is(term: string): boolean;
   send(data: string): void;
-  setgCharset(g: number, charset: Charset): void;
+  setgCharset(g: number, charset: ICharset): void;
   resize(x: number, y: number): void;
   log(text: string, data?: any): void;
   reset(): void;
@@ -137,12 +137,14 @@ export interface ITerminalOptions {
   cursorStyle?: string;
   debug?: boolean;
   disableStdin?: boolean;
-  enableBold?: boolean;
   fontSize?: number;
   fontFamily?: string;
+  fontWeight?: FontWeight;
+  fontWeightBold?: FontWeight;
   handler?: (data: string) => void;
   letterSpacing?: number;
   lineHeight?: number;
+  macOptionIsMeta?: boolean;
   rows?: number;
   screenKeys?: boolean;
   scrollback?: number;
@@ -169,7 +171,7 @@ export interface IBuffer {
   prevStop(x?: number): number;
 }
 
-export interface IBufferSet {
+export interface IBufferSet extends IEventEmitter {
   alt: IBuffer;
   normal: IBuffer;
   active: IBuffer;
@@ -198,7 +200,6 @@ export interface ISelectionManager {
 
   disable(): void;
   enable(): void;
-  setBuffer(buffer: IBuffer): void;
   setSelection(row: number, col: number, length: number): void;
 }
 
@@ -248,7 +249,7 @@ export interface IEventEmitter {
 export interface IListenerType {
     (data?: any): void;
     listener?: (data?: any) => void;
-};
+}
 
 export interface ILinkMatcherOptions {
   /**
@@ -352,3 +353,24 @@ export interface ITheme {
   brightCyan?: string;
   brightWhite?: string;
 }
+
+export interface ILinkMatcher {
+  id: number;
+  regex: RegExp;
+  handler: LinkMatcherHandler;
+  hoverTooltipCallback?: LinkMatcherHandler;
+  hoverLeaveCallback?: () => void;
+  matchIndex?: number;
+  validationCallback?: LinkMatcherValidationCallback;
+  priority?: number;
+}
+
+export interface ICharset {
+  [key: string]: string;
+}
+
+export interface ILinkHoverEvent {
+  x: number;
+  y: number;
+  length: number;
+}

src/Linkifier.test.ts

@@ -4,9 +4,9 @@
  */
 
 import { assert } from 'chai';
-import { ITerminal, ILinkifier, IBuffer, IBufferAccessor, IElementAccessor } from './Interfaces';
+import { ITerminal, ILinkifier, ILinkMatcher, IBuffer, IBufferAccessor, IElementAccessor } from './Interfaces';
 import { Linkifier } from './Linkifier';
-import { LinkMatcher, LineData } from './Types';
+import { LineData } from './Types';
 import { IMouseZoneManager, IMouseZone } from './input/Interfaces';
 import { MockBuffer } from './utils/TestUtils.test';
 import { CircularList } from './utils/CircularList';
@@ -17,7 +17,7 @@ class TestLinkifier extends Linkifier {
     Linkifier.TIME_BEFORE_LINKIFY = 0;
   }
 
-  public get linkMatchers(): LinkMatcher[] { return this._linkMatchers; }
+  public get linkMatchers(): ILinkMatcher[] { return this._linkMatchers; }
   public linkifyRows(): void { super.linkifyRows(0, this._terminal.buffer.lines.length - 1); }
 }
 

src/Linkifier.ts

@@ -3,8 +3,8 @@
  * @license MIT
  */
 
-import { ILinkMatcherOptions, ITerminal, IBufferAccessor, ILinkifier, IElementAccessor } from './Interfaces';
+import { ILinkHoverEvent, ILinkMatcher, ILinkMatcherOptions, ITerminal, IBufferAccessor, ILinkifier, IElementAccessor } from './Interfaces';
-import { LinkMatcher, LinkMatcherHandler, LinkMatcherValidationCallback, LineData, LinkHoverEvent, LinkHoverEventTypes } from './Types';
+import { LinkMatcherHandler, LinkMatcherValidationCallback, LineData, LinkHoverEventTypes } from './Types';
 import { IMouseZoneManager } from './input/Interfaces';
 import { MouseZone } from './input/MouseZoneManager';
 import { EventEmitter } from './EventEmitter';
@@ -44,7 +44,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    */
   protected static TIME_BEFORE_LINKIFY = 200;
 
-  protected _linkMatchers: LinkMatcher[] = [];
+  protected _linkMatchers: ILinkMatcher[] = [];
 
   private _mouseZoneManager: IMouseZoneManager;
   private _rowsTimeoutId: number;
@@ -82,12 +82,12 @@ export class Linkifier extends EventEmitter implements ILinkifier {
     }
 
     // Increase range to linkify
-    if (!this._rowsToLinkify.start) {
+    if (this._rowsToLinkify.start === null) {
       this._rowsToLinkify.start = start;
       this._rowsToLinkify.end = end;
     } else {
-      this._rowsToLinkify.start = this._rowsToLinkify.start < start ? this._rowsToLinkify.start : start;
+      this._rowsToLinkify.start = Math.min(this._rowsToLinkify.start, start);
-      this._rowsToLinkify.end = this._rowsToLinkify.end > end ? this._rowsToLinkify.end : end;
+      this._rowsToLinkify.end = Math.max(this._rowsToLinkify.end, end);
     }
 
     // Clear out any existing links on this row range
@@ -143,7 +143,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
     if (this._nextLinkMatcherId !== HYPERTEXT_LINK_MATCHER_ID && !handler) {
       throw new Error('handler must be defined');
     }
-    const matcher: LinkMatcher = {
+    const matcher: ILinkMatcher = {
       id: this._nextLinkMatcherId++,
       regex,
       handler,
@@ -163,7 +163,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * considered after older link matchers.
    * @param matcher The link matcher to be added.
    */
-  private _addLinkMatcherToList(matcher: LinkMatcher): void {
+  private _addLinkMatcherToList(matcher: ILinkMatcher): void {
     if (this._linkMatchers.length === 0) {
       this._linkMatchers.push(matcher);
       return;
@@ -219,7 +219,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * @param offset The how much of the row has already been linkified.
    * @return The link element(s) that were added.
    */
-  private _doLinkifyRow(rowIndex: number, text: string, matcher: LinkMatcher, offset: number = 0): void {
+  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;
@@ -264,7 +264,7 @@ export class Linkifier extends EventEmitter implements ILinkifier {
    * @param uri The URI of the link.
    * @param matcher The link matcher for the link.
    */
-  private _addLink(x: number, y: number, uri: string, matcher: LinkMatcher): void {
+  private _addLink(x: number, y: number, uri: string, matcher: ILinkMatcher): void {
     this._mouseZoneManager.add(new MouseZone(
       x + 1,
       x + 1 + uri.length,
@@ -276,17 +276,17 @@ export class Linkifier extends EventEmitter implements ILinkifier {
         window.open(uri, '_blank');
       },
       e => {
-        this.emit(LinkHoverEventTypes.HOVER, <LinkHoverEvent>{ x, y, length: uri.length});
+        this.emit(LinkHoverEventTypes.HOVER, <ILinkHoverEvent>{ x, y, length: uri.length});
         this._terminal.element.style.cursor = 'pointer';
       },
       e => {
-        this.emit(LinkHoverEventTypes.TOOLTIP, <LinkHoverEvent>{ x, y, length: uri.length});
+        this.emit(LinkHoverEventTypes.TOOLTIP, <ILinkHoverEvent>{ x, y, length: uri.length});
         if (matcher.hoverTooltipCallback) {
           matcher.hoverTooltipCallback(e, uri);
         }
       },
       () => {
-        this.emit(LinkHoverEventTypes.LEAVE, <LinkHoverEvent>{ x, y, length: uri.length});
+        this.emit(LinkHoverEventTypes.LEAVE, <ILinkHoverEvent>{ x, y, length: uri.length});
         this._terminal.element.style.cursor = '';
         if (matcher.hoverLeaveCallback) {
           matcher.hoverLeaveCallback();

src/SelectionManager.test.ts

@@ -21,10 +21,9 @@ class TestMockTerminal extends MockTerminal {
 class TestSelectionManager extends SelectionManager {
   constructor(
     terminal: ITerminal,
-    buffer: IBuffer,
     charMeasure: CharMeasure
   ) {
-    super(terminal, buffer, charMeasure);
+    super(terminal, charMeasure);
   }
 
   public get model(): SelectionModel { return this._model; }
@@ -59,7 +58,7 @@ describe('SelectionManager', () => {
     terminal.buffers = new BufferSet(terminal);
     terminal.buffer = terminal.buffers.active;
     buffer = terminal.buffer;
-    selectionManager = new TestSelectionManager(terminal, buffer, null);
+    selectionManager = new TestSelectionManager(terminal, null);
   });
 
   function stringToRow(text: string): LineData {

src/SelectionManager.ts

@@ -8,7 +8,7 @@ import * as Browser from './utils/Browser';
 import { CharMeasure } from './utils/CharMeasure';
 import { CircularList } from './utils/CircularList';
 import { EventEmitter } from './EventEmitter';
-import { ITerminal, ICircularList, ISelectionManager, IBuffer } from './Interfaces';
+import { ITerminal, ICircularList, ISelectionManager, IBuffer, IListenerType } from './Interfaces';
 import { SelectionModel } from './SelectionModel';
 import { LineData, CharData } from './Types';
 import { CHAR_DATA_WIDTH_INDEX, CHAR_DATA_CHAR_INDEX } from './Buffer';
@@ -95,10 +95,10 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
 
   private _mouseMoveListener: EventListener;
   private _mouseUpListener: EventListener;
+  private _trimListener: IListenerType;
 
   constructor(
     private _terminal: ITerminal,
-    private _buffer: IBuffer,
     private _charMeasure: CharMeasure
   ) {
     super();
@@ -109,18 +109,24 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     this._activeSelectionMode = SelectionMode.NORMAL;
   }
 
+  private get _buffer(): IBuffer {
+    return this._terminal.buffers.active;
+  }
+
   /**
    * Initializes listener variables.
    */
   private _initListeners(): void {
     this._mouseMoveListener = event => this._onMouseMove(<MouseEvent>event);
     this._mouseUpListener = event => this._onMouseUp(<MouseEvent>event);
+    this._trimListener = (amount: number) => this._onTrim(amount);
 
-    // Only adjust the selection on trim, shiftElements is rarely used (only in
+    this.initBuffersListeners();
-    // reverseIndex) and delete in a splice is only ever used when the same
+  }
-    // number of elements was just added. Given this is could actually be
+
-    // beneficial to leave the selection as is for these cases.
+  public initBuffersListeners(): void {
-    this._buffer.lines.on('trim', (amount: number) => this._onTrim(amount));
+    this._terminal.buffer.lines.on('trim', this._trimListener);
+    this._terminal.buffers.on('activate', e => this._onBufferActivate(e));
   }
 
   /**
@@ -139,16 +145,6 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
     this._enabled = true;
   }
 
-  /**
-   * Sets the active buffer, this should be called when the alt buffer is
-   * switched in or out.
-   * @param buffer The active buffer.
-   */
-  public setBuffer(buffer: IBuffer): void {
-    this._buffer = buffer;
-    this.clearSelection();
-  }
-
   public get selectionStart(): [number, number] { return this._model.finalSelectionStart; }
   public get selectionEnd(): [number, number] { return this._model.finalSelectionEnd; }
 
@@ -547,6 +543,16 @@ export class SelectionManager extends EventEmitter implements ISelectionManager
       this._terminal.emit('selection');
   }
 
+  private _onBufferActivate(e: {activeBuffer: IBuffer, inactiveBuffer: IBuffer}): void {
+    this.clearSelection();
+    // Only adjust the selection on trim, shiftElements is rarely used (only in
+    // reverseIndex) and delete in a splice is only ever used when the same
+    // number of elements was just added. Given this is could actually be
+    // beneficial to leave the selection as is for these cases.
+    e.inactiveBuffer.lines.off('trim', this._trimListener);
+    e.activeBuffer.lines.on('trim', this._trimListener);
+  }
+
   /**
    * Converts a viewport column to the character index on the buffer line, the
    * latter takes into account wide characters.

src/SelectionModel.test.ts

@@ -6,7 +6,7 @@
 import { assert } from 'chai';
 import { ITerminal } from './Interfaces';
 import { SelectionModel } from './SelectionModel';
-import {BufferSet} from './BufferSet';
+import { BufferSet } from './BufferSet';
 import { MockTerminal } from './utils/TestUtils.test';
 
 class TestSelectionModel extends SelectionModel {