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[VSoRC/.git] / node_modules / xterm / src / browser / renderer / SelectionRenderLayer.ts

diff --git a/node_modules/xterm/src/browser/renderer/SelectionRenderLayer.ts b/node_modules/xterm/src/browser/renderer/SelectionRenderLayer.ts
deleted file mode 100644 (file)
index 5cd2fd9..0000000
--- a/node_modules/xterm/src/browser/renderer/SelectionRenderLayer.ts
+++ /dev/null
@@ -1,127 +0,0 @@
-/**
- * Copyright (c) 2017 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-import { IRenderDimensions } from 'browser/renderer/Types';
-import { BaseRenderLayer } from 'browser/renderer/BaseRenderLayer';
-import { IColorSet } from 'browser/Types';
-import { IBufferService, IOptionsService } from 'common/services/Services';
-
-interface ISelectionState {
-  start?: [number, number];
-  end?: [number, number];
-  columnSelectMode?: boolean;
-  ydisp?: number;
-}
-
-export class SelectionRenderLayer extends BaseRenderLayer {
-  private _state!: ISelectionState;
-
-  constructor(
-    container: HTMLElement,
-    zIndex: number,
-    colors: IColorSet,
-    rendererId: number,
-    readonly bufferService: IBufferService,
-    readonly optionsService: IOptionsService
-  ) {
-    super(container, 'selection', zIndex, true, colors, rendererId, bufferService, optionsService);
-    this._clearState();
-  }
-
-  private _clearState(): void {
-    this._state = {
-      start: undefined,
-      end: undefined,
-      columnSelectMode: undefined,
-      ydisp: undefined
-    };
-  }
-
-  public resize(dim: IRenderDimensions): void {
-    super.resize(dim);
-    // Resizing the canvas discards the contents of the canvas so clear state
-    this._clearState();
-  }
-
-  public reset(): void {
-    if (this._state.start && this._state.end) {
-      this._clearState();
-      this._clearAll();
-    }
-  }
-
-  public onSelectionChanged(start: [number, number], end: [number, number], columnSelectMode: boolean): void {
-    // Selection has not changed
-    if (!this._didStateChange(start, end, columnSelectMode, this._bufferService.buffer.ydisp)) {
-      return;
-    }
-
-    // Remove all selections
-    this._clearAll();
-
-    // Selection does not exist
-    if (!start || !end) {
-      this._clearState();
-      return;
-    }
-
-    // Translate from buffer position to viewport position
-    const viewportStartRow = start[1] - this._bufferService.buffer.ydisp;
-    const viewportEndRow = end[1] - this._bufferService.buffer.ydisp;
-    const viewportCappedStartRow = Math.max(viewportStartRow, 0);
-    const viewportCappedEndRow = Math.min(viewportEndRow, this._bufferService.rows - 1);
-
-    // No need to draw the selection
-    if (viewportCappedStartRow >= this._bufferService.rows || viewportCappedEndRow < 0) {
-      return;
-    }
-
-    this._ctx.fillStyle = this._colors.selection.css;
-
-    if (columnSelectMode) {
-      const startCol = start[0];
-      const width = end[0] - startCol;
-      const height = viewportCappedEndRow - viewportCappedStartRow + 1;
-      this._fillCells(startCol, viewportCappedStartRow, width, height);
-    } else {
-      // Draw first row
-      const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
-      const startRowEndCol = viewportCappedStartRow === viewportCappedEndRow ? end[0] : this._bufferService.cols;
-      this._fillCells(startCol, viewportCappedStartRow, startRowEndCol - startCol, 1);
-
-      // Draw middle rows
-      const middleRowsCount = Math.max(viewportCappedEndRow - viewportCappedStartRow - 1, 0);
-      this._fillCells(0, viewportCappedStartRow + 1, this._bufferService.cols, middleRowsCount);
-
-      // Draw final row
-      if (viewportCappedStartRow !== viewportCappedEndRow) {
-        // Only draw viewportEndRow if it's not the same as viewportStartRow
-        const endCol = viewportEndRow === viewportCappedEndRow ? end[0] : this._bufferService.cols;
-        this._fillCells(0, viewportCappedEndRow, endCol, 1);
-      }
-    }
-
-    // Save state for next render
-    this._state.start = [start[0], start[1]];
-    this._state.end = [end[0], end[1]];
-    this._state.columnSelectMode = columnSelectMode;
-    this._state.ydisp = this._bufferService.buffer.ydisp;
-  }
-
-  private _didStateChange(start: [number, number], end: [number, number], columnSelectMode: boolean, ydisp: number): boolean {
-    return !this._areCoordinatesEqual(start, this._state.start) ||
-      !this._areCoordinatesEqual(end, this._state.end) ||
-      columnSelectMode !== this._state.columnSelectMode ||
-      ydisp !== this._state.ydisp;
-  }
-
-  private _areCoordinatesEqual(coord1: [number, number] | undefined, coord2: [number, number] | undefined): boolean {
-    if (!coord1 || !coord2) {
-      return false;
-    }
-
-    return coord1[0] === coord2[0] && coord1[1] === coord2[1];
-  }
-}