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[VSoRC/.git] / node_modules / xterm / src / browser / services / CharSizeService.ts

diff --git a/node_modules/xterm/src/browser/services/CharSizeService.ts b/node_modules/xterm/src/browser/services/CharSizeService.ts
deleted file mode 100644 (file)
index 0749a42..0000000
--- a/node_modules/xterm/src/browser/services/CharSizeService.ts
+++ /dev/null
@@ -1,87 +0,0 @@
-/**
- * Copyright (c) 2016 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-import { IOptionsService } from 'common/services/Services';
-import { IEvent, EventEmitter } from 'common/EventEmitter';
-import { ICharSizeService } from 'browser/services/Services';
-
-export class CharSizeService implements ICharSizeService {
-  serviceBrand: any;
-
-  public width: number = 0;
-  public height: number = 0;
-  private _measureStrategy: IMeasureStrategy;
-
-  public get hasValidSize(): boolean { return this.width > 0 && this.height > 0; }
-
-  private _onCharSizeChange = new EventEmitter<void>();
-  public get onCharSizeChange(): IEvent<void> { return this._onCharSizeChange.event; }
-
-  constructor(
-    readonly document: Document,
-    readonly parentElement: HTMLElement,
-    @IOptionsService private readonly _optionsService: IOptionsService
-  ) {
-    this._measureStrategy = new DomMeasureStrategy(document, parentElement, this._optionsService);
-  }
-
-  public measure(): void {
-    const result = this._measureStrategy.measure();
-    if (result.width !== this.width || result.height !== this.height) {
-      this.width = result.width;
-      this.height = result.height;
-      this._onCharSizeChange.fire();
-    }
-  }
-}
-
-interface IMeasureStrategy {
-  measure(): IReadonlyMeasureResult;
-}
-
-interface IReadonlyMeasureResult {
-  readonly width: number;
-  readonly height: number;
-}
-
-interface IMeasureResult {
-  width: number;
-  height: number;
-}
-
-// TODO: For supporting browsers we should also provide a CanvasCharDimensionsProvider that uses ctx.measureText
-class DomMeasureStrategy implements IMeasureStrategy {
-  private _result: IMeasureResult = { width: 0, height: 0 };
-  private _measureElement: HTMLElement;
-
-  constructor(
-    private _document: Document,
-    private _parentElement: HTMLElement,
-    private _optionsService: IOptionsService
-  ) {
-    this._measureElement = this._document.createElement('span');
-    this._measureElement.classList.add('xterm-char-measure-element');
-    this._measureElement.textContent = 'W';
-    this._measureElement.setAttribute('aria-hidden', 'true');
-    this._parentElement.appendChild(this._measureElement);
-  }
-
-  public measure(): IReadonlyMeasureResult {
-    this._measureElement.style.fontFamily = this._optionsService.options.fontFamily;
-    this._measureElement.style.fontSize = `${this._optionsService.options.fontSize}px`;
-
-    // Note that this triggers a synchronous layout
-    const geometry = this._measureElement.getBoundingClientRect();
-
-    // If values are 0 then the element is likely currently display:none, in which case we should
-    // retain the previous value.
-    if (geometry.width !== 0 && geometry.height !== 0) {
-      this._result.width = geometry.width;
-      this._result.height = Math.ceil(geometry.height);
-    }
-
-    return this._result;
-  }
-}