Update to Xterm 4.3

Update how addons are handle
Include the fit addon which is now a separate package
Update to use new event handlers

packages/terminal/package.json

@@ -41,7 +41,8 @@
     "@lumino/domutils": "^1.1.5",
     "@lumino/messaging": "^1.3.1",
     "@lumino/widgets": "^1.9.4",
-    "xterm": "~3.13.2"
+    "xterm": "~4.3.0",
+    "xterm-addon-fit": "~0.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
@@ -54,7 +55,7 @@
   "jupyterlab": {
     "extraStyles": {
       "xterm": [
-        "src/xterm.css"
+        "css/xterm.css"
       ]
     }
   }

packages/terminal/src/widget.ts

@@ -11,7 +11,7 @@ import { Widget } from '@lumino/widgets';
 
 import { Terminal as Xterm } from 'xterm';
 
-import { fit } from 'xterm/lib/addons/fit/fit';
+import { FitAddon } from 'xterm-addon-fit';
 
 import { ITerminal } from '.';
 
@@ -57,6 +57,9 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
 
     // Create the xterm.
     this._term = new Xterm(xtermOptions);
+    this._fitAddon = new FitAddon();
+    this._term.loadAddon(this._fitAddon);
+
     this._initializeTerm();
 
     this.id = `jp-Terminal-${Private.id++}`;
@@ -240,7 +243,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    */
   private _initializeTerm(): void {
     const term = this._term;
-    term.on('data', (data: string) => {
+    term.onData((data: string) => {
       if (this.isDisposed) {
         return;
       }
@@ -250,7 +253,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
       });
     });
 
-    term.on('title', (title: string) => {
+    term.onTitleChange((title: string) => {
       this.title.label = title;
     });
 
@@ -301,7 +304,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Resize the terminal based on computed geometry.
    */
   private _resizeTerminal() {
-    fit(this._term);
+    this._fitAddon.fit();
     if (this._offsetWidth === -1) {
       this._offsetWidth = this.node.offsetWidth;
     }
@@ -328,6 +331,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
   }
 
   private readonly _term: Xterm;
+  private readonly _fitAddon: FitAddon;
   private _needsResize = true;
   private _termOpened = false;
   private _offsetWidth = -1;

packages/terminal/style/index.css

@@ -6,6 +6,6 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-@import url('~xterm/src/xterm.css');
+@import url('~xterm/css/xterm.css');
 
 @import url('./base.css');

yarn.lock

@@ -13681,10 +13681,15 @@ xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
-xterm@~3.13.2:
-  version "3.13.2"
-  resolved "https://registry.yarnpkg.com/xterm/-/xterm-3.13.2.tgz#987c3a7fe3d23d6c03ce0eaf06c0554c38935570"
-  integrity sha512-4utKoF16/pzH6+EkFaaay+qPCozf5RP2P0JuH6rvIGHY0CRwgU2LwbQ/24DY+TvaZ5m+kwvIUvPqIBoMZYfgOg==
+xterm-addon-fit@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/xterm-addon-fit/-/xterm-addon-fit-0.3.0.tgz#341710741027de9d648a9f84415a01ddfdbbe715"
+  integrity sha512-kvkiqHVrnMXgyCH9Xn0BOBJ7XaWC/4BgpSWQy3SueqximgW630t/QOankgqkvk11iTOCwWdAY9DTyQBXUMN3lw==
+
+xterm@~4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.3.0.tgz#9a302efefe75172d4f7ea3afc20f9bd983f05027"
+  integrity sha512-6dnrC4nxgnRKQzIWwC5HA0mnT9/rpDPZflUIr24gdcdSMTKM1QQcor4qQ/xz4Zerz6AIL/CuuBPypFfzsB63dQ==
 
 y18n@^3.2.0:
   version "3.2.1"