using isCursorInitialized for domrenderer

addons/xterm-addon-canvas/test/CanvasRenderer.test.ts

@@ -4,7 +4,7 @@
  */
 
 import test from '@playwright/test';
-import { ISharedRendererTestContext, injectSharedRendererTests } from '../../../out-test/playwright/SharedRendererTests';
+import { ISharedRendererTestContext, injectSharedRendererTests, injectSharedRendererTestsStandalone } from '../../../out-test/playwright/SharedRendererTests';
 import { ITestContext, createTestContext, openTerminal } from '../../../out-test/playwright/TestUtils';
 
 let ctx: ITestContext;
@@ -28,4 +28,5 @@ test.describe('Canvas Renderer Integration Tests', () => {
   test.skip(({ browserName }) => browserName === 'webkit');
 
   injectSharedRendererTests(ctxWrapper);
+  injectSharedRendererTestsStandalone(ctxWrapper);
 });

addons/xterm-addon-webgl/test/WebglRenderer.test.ts

@@ -4,7 +4,7 @@
  */
 
 import test from '@playwright/test';
-import { ISharedRendererTestContext, injectSharedRendererTests } from '../../../out-test/playwright/SharedRendererTests';
+import { ISharedRendererTestContext, injectSharedRendererTests, injectSharedRendererTestsStandalone } from '../../../out-test/playwright/SharedRendererTests';
 import { ITestContext, createTestContext, openTerminal } from '../../../out-test/playwright/TestUtils';
 import { platform } from 'os';
 
@@ -29,4 +29,5 @@ test.describe('WebGL Renderer Integration Tests', async () => {
   }
 
   injectSharedRendererTests(ctxWrapper);
+  injectSharedRendererTestsStandalone(ctxWrapper);
 });

src/browser/renderer/dom/DomRendererRowFactory.test.ts

@@ -96,6 +96,24 @@ describe('DomRendererRowFactory', () => {
       }
     });
 
+    it('should not display cursor for before initializing', () => {
+      const coreService = new MockCoreService();
+      coreService.isCursorInitialized = false;
+      const rowFactory = new DomRendererRowFactory(
+        dom.window.document,
+        new MockCharacterJoinerService(),
+        new MockOptionsService(),
+        new MockCoreBrowserService(),
+        coreService,
+        new MockDecorationService(),
+        new MockThemeService()
+      );
+      const spans = rowFactory.createRow(lineData, 0, true, 'block', undefined, 0, false, 5, EMPTY_WIDTH, -1, -1);
+      assert.equal(extractHtml(spans),
+        `<span> </span>`
+      );
+    });
+
     describe('attributes', () => {
       it('should add class for bold', () => {
         const cell = CellData.fromCharData([0, 'a', 1, 'a'.charCodeAt(0)]);

src/browser/renderer/dom/DomRendererRowFactory.ts

@@ -218,7 +218,7 @@ export class DomRendererRowFactory {
         }
       }
 
-      if (!this._coreService.isCursorHidden && isCursorCell) {
+      if (!this._coreService.isCursorHidden && isCursorCell && this._coreService.isCursorInitialized) {
         classes.push(RowCss.CURSOR_CLASS);
         if (this._coreBrowserService.isFocused) {
           if (cursorBlink) {

src/common/TestUtils.test.ts

@@ -78,7 +78,7 @@ export class MockCharsetService implements ICharsetService {
 
 export class MockCoreService implements ICoreService {
   public serviceBrand: any;
-  public isCursorInitialized: boolean = false;
+  public isCursorInitialized: boolean = true;
   public isCursorHidden: boolean = false;
   public isFocused: boolean = false;
   public modes: IModes = {

test/playwright/Renderer.test.ts

@@ -5,7 +5,7 @@
 
 import { test } from '@playwright/test';
 import { ITestContext, createTestContext, openTerminal } from './TestUtils';
-import { ISharedRendererTestContext, injectSharedRendererTests } from './SharedRendererTests';
+import { ISharedRendererTestContext, injectSharedRendererTestsStandalone, injectSharedRendererTests } from './SharedRendererTests';
 
 let ctx: ITestContext;
 const ctxWrapper: ISharedRendererTestContext = { value: undefined } as any;
@@ -18,5 +18,5 @@ test.afterAll(async () => await ctx.page.close());
 
 test.describe('DOM Renderer Integration Tests', () => {
   injectSharedRendererTests(ctxWrapper);
+  injectSharedRendererTestsStandalone(ctxWrapper);
 });
-

test/playwright/SharedRendererTests.ts

@@ -6,7 +6,7 @@
 import { IImage32, decodePng } from '@lunapaint/png-codec';
 import { LocatorScreenshotOptions, test } from '@playwright/test';
 import { ITheme } from 'xterm';
-import { ITestContext, MaybeAsync, pollFor, pollForApproximate } from './TestUtils';
+import { ITestContext, MaybeAsync, openTerminal, pollFor, pollForApproximate } from './TestUtils';
 
 export interface ISharedRendererTestContext {
   value: ITestContext;
@@ -1150,6 +1150,40 @@ export function injectSharedRendererTests(ctx: ISharedRendererTestContext): void
   });
 }
 
+/**
+ * Injects shared renderer tests where it's required to re-initialize the terminal for each test.
+ * This is much slower than just calling `Terminal.reset` but testing some features needs this
+ * treatment.
+ */
+export function injectSharedRendererTestsStandalone(ctx: ISharedRendererTestContext): void {
+  test.beforeEach(async () => {
+    // Recreate terminal
+    await openTerminal(ctx.value);
+    ctx.value.page.evaluate(`
+      window.term.options.minimumContrastRatio = 1;
+      window.term.options.allowTransparency = false;
+      window.term.options.theme = undefined;
+    `);
+    // Clear the cached screenshot before each test
+    frameDetails = undefined;
+  });
+  test.describe('regression tests', () => {
+    test('#4790: cursor should not be displayed before focusing', async () => {
+      const theme: ITheme = {
+        cursor: '#0000FF'
+      };
+      await ctx.value.page.evaluate(`window.term.options.theme = ${JSON.stringify(theme)};`);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 1, 1), [0, 0, 0, 255]);
+      await ctx.value.proxy.focus();
+      frameDetails = undefined;
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 1, 1), [0, 0, 255, 255]);
+      await ctx.value.proxy.blur();
+      frameDetails = undefined;
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 1, 1), [0, 0, 0, 255]);
+    });
+  });
+}
+
 /**
  * Gets the color of the pixel in the center of a cell.
  * @param ctx The test context.