X-Git-Url: https://git.josue.xyz/?p=VSoRC%2F.git;a=blobdiff_plain;f=node_modules%2Fxterm%2Fsrc%2Fbrowser%2Fservices%2FSelectionService.ts;fp=node_modules%2Fxterm%2Fsrc%2Fbrowser%2Fservices%2FSelectionService.ts;h=0000000000000000000000000000000000000000;hp=3631bbb76c51d54e0aefdab9825ec605b42d7194;hb=5e96dd57ddd883604e87f62bdddcb111c63a6e1a;hpb=acb5f682a2b75b972710cabd81658f63071324b0

diff --git a/node_modules/xterm/src/browser/services/SelectionService.ts b/node_modules/xterm/src/browser/services/SelectionService.ts
deleted file mode 100644
index 3631bbb..0000000
--- a/node_modules/xterm/src/browser/services/SelectionService.ts
+++ /dev/null
@@ -1,952 +0,0 @@
-/**
- * Copyright (c) 2017 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-import { ISelectionRedrawRequestEvent } from 'browser/selection/Types';
-import { IBuffer } from 'common/buffer/Types';
-import { IBufferLine, IDisposable } from 'common/Types';
-import * as Browser from 'common/Platform';
-import { SelectionModel } from 'browser/selection/SelectionModel';
-import { CellData } from 'common/buffer/CellData';
-import { EventEmitter, IEvent } from 'common/EventEmitter';
-import { ICharSizeService, IMouseService, ISelectionService } from 'browser/services/Services';
-import { IBufferService, IOptionsService, ICoreService } from 'common/services/Services';
-import { getCoordsRelativeToElement } from 'browser/input/Mouse';
-import { moveToCellSequence } from 'browser/input/MoveToCell';
-
-/**
- * The number of pixels the mouse needs to be above or below the viewport in
- * order to scroll at the maximum speed.
- */
-const DRAG_SCROLL_MAX_THRESHOLD = 50;
-
-/**
- * The maximum scrolling speed
- */
-const DRAG_SCROLL_MAX_SPEED = 15;
-
-/**
- * The number of milliseconds between drag scroll updates.
- */
-const DRAG_SCROLL_INTERVAL = 50;
-
-/**
- * The maximum amount of time that can have elapsed for an alt click to move the
- * cursor.
- */
-const ALT_CLICK_MOVE_CURSOR_TIME = 500;
-
-const NON_BREAKING_SPACE_CHAR = String.fromCharCode(160);
-const ALL_NON_BREAKING_SPACE_REGEX = new RegExp(NON_BREAKING_SPACE_CHAR, 'g');
-
-/**
- * Represents a position of a word on a line.
- */
-interface IWordPosition {
-  start: number;
-  length: number;
-}
-
-/**
- * A selection mode, this drives how the selection behaves on mouse move.
- */
-export const enum SelectionMode {
-  NORMAL,
-  WORD,
-  LINE,
-  COLUMN
-}
-
-/**
- * A class that manages the selection of the terminal. With help from
- * SelectionModel, SelectionService handles with all logic associated with
- * dealing with the selection, including handling mouse interaction, wide
- * characters and fetching the actual text within the selection. Rendering is
- * not handled by the SelectionService but the onRedrawRequest event is fired
- * when the selection is ready to be redrawn (on an animation frame).
- */
-export class SelectionService implements ISelectionService {
-  serviceBrand: any;
-
-  protected _model: SelectionModel;
-
-  /**
-   * The amount to scroll every drag scroll update (depends on how far the mouse
-   * drag is above or below the terminal).
-   */
-  private _dragScrollAmount: number = 0;
-
-  /**
-   * The current selection mode.
-   */
-  protected _activeSelectionMode: SelectionMode;
-
-  /**
-   * A setInterval timer that is active while the mouse is down whose callback
-   * scrolls the viewport when necessary.
-   */
-  private _dragScrollIntervalTimer: number | undefined;
-
-  /**
-   * The animation frame ID used for refreshing the selection.
-   */
-  private _refreshAnimationFrame: number | undefined;
-
-  /**
-   * Whether selection is enabled.
-   */
-  private _enabled = true;
-
-  private _mouseMoveListener: EventListener;
-  private _mouseUpListener: EventListener;
-  private _trimListener: IDisposable;
-  private _workCell: CellData = new CellData();
-
-  private _mouseDownTimeStamp: number = 0;
-
-  private _onLinuxMouseSelection = new EventEmitter<string>();
-  public get onLinuxMouseSelection(): IEvent<string> { return this._onLinuxMouseSelection.event; }
-  private _onRedrawRequest = new EventEmitter<ISelectionRedrawRequestEvent>();
-  public get onRedrawRequest(): IEvent<ISelectionRedrawRequestEvent> { return this._onRedrawRequest.event; }
-  private _onSelectionChange = new EventEmitter<void>();
-  public get onSelectionChange(): IEvent<void> { return this._onSelectionChange.event; }
-
-  constructor(
-    private readonly _scrollLines: (amount: number, suppressEvent: boolean) => void,
-    private readonly _element: HTMLElement,
-    private readonly _screenElement: HTMLElement,
-    @ICharSizeService private readonly _charSizeService: ICharSizeService,
-    @IBufferService private readonly _bufferService: IBufferService,
-    @ICoreService private readonly _coreService: ICoreService,
-    @IMouseService private readonly _mouseService: IMouseService,
-    @IOptionsService private readonly _optionsService: IOptionsService
-  ) {
-    // Init listeners
-    this._mouseMoveListener = event => this._onMouseMove(<MouseEvent>event);
-    this._mouseUpListener = event => this._onMouseUp(<MouseEvent>event);
-    this._coreService.onUserInput(() => {
-      if (this.hasSelection) {
-        this.clearSelection();
-      }
-    });
-    this._trimListener = this._bufferService.buffer.lines.onTrim(amount => this._onTrim(amount));
-    this._bufferService.buffers.onBufferActivate(e => this._onBufferActivate(e));
-
-    this.enable();
-
-    this._model = new SelectionModel(this._bufferService);
-    this._activeSelectionMode = SelectionMode.NORMAL;
-  }
-
-  public dispose(): void {
-    this._removeMouseDownListeners();
-  }
-
-  public reset(): void {
-    this.clearSelection();
-  }
-
-  /**
-   * Disables the selection manager. This is useful for when terminal mouse
-   * are enabled.
-   */
-  public disable(): void {
-    this.clearSelection();
-    this._enabled = false;
-  }
-
-  /**
-   * Enable the selection manager.
-   */
-  public enable(): void {
-    this._enabled = true;
-  }
-
-  public get selectionStart(): [number, number] | undefined { return this._model.finalSelectionStart; }
-  public get selectionEnd(): [number, number] | undefined { return this._model.finalSelectionEnd; }
-
-  /**
-   * Gets whether there is an active text selection.
-   */
-  public get hasSelection(): boolean {
-    const start = this._model.finalSelectionStart;
-    const end = this._model.finalSelectionEnd;
-    if (!start || !end) {
-      return false;
-    }
-    return start[0] !== end[0] || start[1] !== end[1];
-  }
-
-  /**
-   * Gets the text currently selected.
-   */
-  public get selectionText(): string {
-    const start = this._model.finalSelectionStart;
-    const end = this._model.finalSelectionEnd;
-    if (!start || !end) {
-      return '';
-    }
-
-    const buffer = this._bufferService.buffer;
-    const result: string[] = [];
-
-    if (this._activeSelectionMode === SelectionMode.COLUMN) {
-      // Ignore zero width selections
-      if (start[0] === end[0]) {
-        return '';
-      }
-
-      for (let i = start[1]; i <= end[1]; i++) {
-        const lineText = buffer.translateBufferLineToString(i, true, start[0], end[0]);
-        result.push(lineText);
-      }
-    } else {
-      // Get first row
-      const startRowEndCol = start[1] === end[1] ? end[0] : undefined;
-      result.push(buffer.translateBufferLineToString(start[1], true, start[0], startRowEndCol));
-
-      // Get middle rows
-      for (let i = start[1] + 1; i <= end[1] - 1; i++) {
-        const bufferLine = buffer.lines.get(i);
-        const lineText = buffer.translateBufferLineToString(i, true);
-        if (bufferLine && bufferLine.isWrapped) {
-          result[result.length - 1] += lineText;
-        } else {
-          result.push(lineText);
-        }
-      }
-
-      // Get final row
-      if (start[1] !== end[1]) {
-        const bufferLine = buffer.lines.get(end[1]);
-        const lineText = buffer.translateBufferLineToString(end[1], true, 0, end[0]);
-        if (bufferLine && bufferLine!.isWrapped) {
-          result[result.length - 1] += lineText;
-        } else {
-          result.push(lineText);
-        }
-      }
-    }
-
-    // Format string by replacing non-breaking space chars with regular spaces
-    // and joining the array into a multi-line string.
-    const formattedResult = result.map(line => {
-      return line.replace(ALL_NON_BREAKING_SPACE_REGEX, ' ');
-    }).join(Browser.isWindows ? '\r\n' : '\n');
-
-    return formattedResult;
-  }
-
-  /**
-   * Clears the current terminal selection.
-   */
-  public clearSelection(): void {
-    this._model.clearSelection();
-    this._removeMouseDownListeners();
-    this.refresh();
-    this._onSelectionChange.fire();
-  }
-
-  /**
-   * Queues a refresh, redrawing the selection on the next opportunity.
-   * @param isLinuxMouseSelection Whether the selection should be registered as a new
-   * selection on Linux.
-   */
-  public refresh(isLinuxMouseSelection?: boolean): void {
-    // Queue the refresh for the renderer
-    if (!this._refreshAnimationFrame) {
-      this._refreshAnimationFrame = window.requestAnimationFrame(() => this._refresh());
-    }
-
-    // If the platform is Linux and the refresh call comes from a mouse event,
-    // we need to update the selection for middle click to paste selection.
-    if (Browser.isLinux && isLinuxMouseSelection) {
-      const selectionText = this.selectionText;
-      if (selectionText.length) {
-        this._onLinuxMouseSelection.fire(this.selectionText);
-      }
-    }
-  }
-
-  /**
-   * Fires the refresh event, causing consumers to pick it up and redraw the
-   * selection state.
-   */
-  private _refresh(): void {
-    this._refreshAnimationFrame = undefined;
-    this._onRedrawRequest.fire({
-      start: this._model.finalSelectionStart,
-      end: this._model.finalSelectionEnd,
-      columnSelectMode: this._activeSelectionMode === SelectionMode.COLUMN
-    });
-  }
-
-  /**
-   * Checks if the current click was inside the current selection
-   * @param event The mouse event
-   */
-  public isClickInSelection(event: MouseEvent): boolean {
-    const coords = this._getMouseBufferCoords(event);
-    const start = this._model.finalSelectionStart;
-    const end = this._model.finalSelectionEnd;
-
-    if (!start || !end || !coords) {
-      return false;
-    }
-
-    return this._areCoordsInSelection(coords, start, end);
-  }
-
-  protected _areCoordsInSelection(coords: [number, number], start: [number, number], end: [number, number]): boolean {
-    return (coords[1] > start[1] && coords[1] < end[1]) ||
-        (start[1] === end[1] && coords[1] === start[1] && coords[0] >= start[0] && coords[0] < end[0]) ||
-        (start[1] < end[1] && coords[1] === end[1] && coords[0] < end[0]) ||
-        (start[1] < end[1] && coords[1] === start[1] && coords[0] >= start[0]);
-  }
-
-  /**
-   * Selects word at the current mouse event coordinates.
-   * @param event The mouse event.
-   */
-  public selectWordAtCursor(event: MouseEvent): void {
-    const coords = this._getMouseBufferCoords(event);
-    if (coords) {
-      this._selectWordAt(coords, false);
-      this._model.selectionEnd = undefined;
-      this.refresh(true);
-    }
-  }
-
-  /**
-   * Selects all text within the terminal.
-   */
-  public selectAll(): void {
-    this._model.isSelectAllActive = true;
-    this.refresh();
-    this._onSelectionChange.fire();
-  }
-
-  public selectLines(start: number, end: number): void {
-    this._model.clearSelection();
-    start = Math.max(start, 0);
-    end = Math.min(end, this._bufferService.buffer.lines.length - 1);
-    this._model.selectionStart = [0, start];
-    this._model.selectionEnd = [this._bufferService.cols, end];
-    this.refresh();
-    this._onSelectionChange.fire();
-  }
-
-  /**
-   * Handle the buffer being trimmed, adjust the selection position.
-   * @param amount The amount the buffer is being trimmed.
-   */
-  private _onTrim(amount: number): void {
-    const needsRefresh = this._model.onTrim(amount);
-    if (needsRefresh) {
-      this.refresh();
-    }
-  }
-
-  /**
-   * Gets the 0-based [x, y] buffer coordinates of the current mouse event.
-   * @param event The mouse event.
-   */
-  private _getMouseBufferCoords(event: MouseEvent): [number, number] | undefined {
-    const coords = this._mouseService.getCoords(event, this._screenElement, this._bufferService.cols, this._bufferService.rows, true);
-    if (!coords) {
-      return undefined;
-    }
-
-    // Convert to 0-based
-    coords[0]--;
-    coords[1]--;
-
-    // Convert viewport coords to buffer coords
-    coords[1] += this._bufferService.buffer.ydisp;
-    return coords;
-  }
-
-  /**
-   * Gets the amount the viewport should be scrolled based on how far out of the
-   * terminal the mouse is.
-   * @param event The mouse event.
-   */
-  private _getMouseEventScrollAmount(event: MouseEvent): number {
-    let offset = getCoordsRelativeToElement(event, this._screenElement)[1];
-    const terminalHeight = this._bufferService.rows * Math.ceil(this._charSizeService.height * this._optionsService.options.lineHeight);
-    if (offset >= 0 && offset <= terminalHeight) {
-      return 0;
-    }
-    if (offset > terminalHeight) {
-      offset -= terminalHeight;
-    }
-
-    offset = Math.min(Math.max(offset, -DRAG_SCROLL_MAX_THRESHOLD), DRAG_SCROLL_MAX_THRESHOLD);
-    offset /= DRAG_SCROLL_MAX_THRESHOLD;
-    return (offset / Math.abs(offset)) + Math.round(offset * (DRAG_SCROLL_MAX_SPEED - 1));
-  }
-
-  /**
-   * Returns whether the selection manager should force selection, regardless of
-   * whether the terminal is in mouse events mode.
-   * @param event The mouse event.
-   */
-  public shouldForceSelection(event: MouseEvent): boolean {
-    if (Browser.isMac) {
-      return event.altKey && this._optionsService.options.macOptionClickForcesSelection;
-    }
-
-    return event.shiftKey;
-  }
-
-  /**
-   * Handles te mousedown event, setting up for a new selection.
-   * @param event The mousedown event.
-   */
-  public onMouseDown(event: MouseEvent): void {
-    this._mouseDownTimeStamp = event.timeStamp;
-    // If we have selection, we want the context menu on right click even if the
-    // terminal is in mouse mode.
-    if (event.button === 2 && this.hasSelection) {
-      return;
-    }
-
-    // Only action the primary button
-    if (event.button !== 0) {
-      return;
-    }
-
-    // Allow selection when using a specific modifier key, even when disabled
-    if (!this._enabled) {
-      if (!this.shouldForceSelection(event)) {
-        return;
-      }
-
-      // Don't send the mouse down event to the current process, we want to select
-      event.stopPropagation();
-    }
-
-    // Tell the browser not to start a regular selection
-    event.preventDefault();
-
-    // Reset drag scroll state
-    this._dragScrollAmount = 0;
-
-    if (this._enabled && event.shiftKey) {
-      this._onIncrementalClick(event);
-    } else {
-      if (event.detail === 1) {
-        this._onSingleClick(event);
-      } else if (event.detail === 2) {
-        this._onDoubleClick(event);
-      } else if (event.detail === 3) {
-        this._onTripleClick(event);
-      }
-    }
-
-    this._addMouseDownListeners();
-    this.refresh(true);
-  }
-
-  /**
-   * Adds listeners when mousedown is triggered.
-   */
-  private _addMouseDownListeners(): void {
-    // Listen on the document so that dragging outside of viewport works
-    if (this._screenElement.ownerDocument) {
-      this._screenElement.ownerDocument.addEventListener('mousemove', this._mouseMoveListener);
-      this._screenElement.ownerDocument.addEventListener('mouseup', this._mouseUpListener);
-    }
-    this._dragScrollIntervalTimer = window.setInterval(() => this._dragScroll(), DRAG_SCROLL_INTERVAL);
-  }
-
-  /**
-   * Removes the listeners that are registered when mousedown is triggered.
-   */
-  private _removeMouseDownListeners(): void {
-    if (this._screenElement.ownerDocument) {
-      this._screenElement.ownerDocument.removeEventListener('mousemove', this._mouseMoveListener);
-      this._screenElement.ownerDocument.removeEventListener('mouseup', this._mouseUpListener);
-    }
-    clearInterval(this._dragScrollIntervalTimer);
-    this._dragScrollIntervalTimer = undefined;
-  }
-
-  /**
-   * Performs an incremental click, setting the selection end position to the mouse
-   * position.
-   * @param event The mouse event.
-   */
-  private _onIncrementalClick(event: MouseEvent): void {
-    if (this._model.selectionStart) {
-      this._model.selectionEnd = this._getMouseBufferCoords(event);
-    }
-  }
-
-  /**
-   * Performs a single click, resetting relevant state and setting the selection
-   * start position.
-   * @param event The mouse event.
-   */
-  private _onSingleClick(event: MouseEvent): void {
-    this._model.selectionStartLength = 0;
-    this._model.isSelectAllActive = false;
-    this._activeSelectionMode = this.shouldColumnSelect(event) ? SelectionMode.COLUMN : SelectionMode.NORMAL;
-
-    // Initialize the new selection
-    this._model.selectionStart = this._getMouseBufferCoords(event);
-    if (!this._model.selectionStart) {
-      return;
-    }
-    this._model.selectionEnd = undefined;
-
-    // Ensure the line exists
-    const line = this._bufferService.buffer.lines.get(this._model.selectionStart[1]);
-    if (!line) {
-      return;
-    }
-
-    // Return early if the click event is not in the buffer (eg. in scroll bar)
-    if (line.length === this._model.selectionStart[0]) {
-      return;
-    }
-
-    // If the mouse is over the second half of a wide character, adjust the
-    // selection to cover the whole character
-    if (line.hasWidth(this._model.selectionStart[0]) === 0) {
-      this._model.selectionStart[0]++;
-    }
-  }
-
-  /**
-   * Performs a double click, selecting the current work.
-   * @param event The mouse event.
-   */
-  private _onDoubleClick(event: MouseEvent): void {
-    const coords = this._getMouseBufferCoords(event);
-    if (coords) {
-      this._activeSelectionMode = SelectionMode.WORD;
-      this._selectWordAt(coords, true);
-    }
-  }
-
-  /**
-   * Performs a triple click, selecting the current line and activating line
-   * select mode.
-   * @param event The mouse event.
-   */
-  private _onTripleClick(event: MouseEvent): void {
-    const coords = this._getMouseBufferCoords(event);
-    if (coords) {
-      this._activeSelectionMode = SelectionMode.LINE;
-      this._selectLineAt(coords[1]);
-    }
-  }
-
-  /**
-   * Returns whether the selection manager should operate in column select mode
-   * @param event the mouse or keyboard event
-   */
-  public shouldColumnSelect(event: KeyboardEvent | MouseEvent): boolean {
-    return event.altKey && !(Browser.isMac && this._optionsService.options.macOptionClickForcesSelection);
-  }
-
-  /**
-   * Handles the mousemove event when the mouse button is down, recording the
-   * end of the selection and refreshing the selection.
-   * @param event The mousemove event.
-   */
-  private _onMouseMove(event: MouseEvent): void {
-    // If the mousemove listener is active it means that a selection is
-    // currently being made, we should stop propagation to prevent mouse events
-    // to be sent to the pty.
-    event.stopImmediatePropagation();
-
-    // Do nothing if there is no selection start, this can happen if the first
-    // click in the terminal is an incremental click
-    if (!this._model.selectionStart) {
-      return;
-    }
-
-    // Record the previous position so we know whether to redraw the selection
-    // at the end.
-    const previousSelectionEnd = this._model.selectionEnd ? [this._model.selectionEnd[0], this._model.selectionEnd[1]] : null;
-
-    // Set the initial selection end based on the mouse coordinates
-    this._model.selectionEnd = this._getMouseBufferCoords(event);
-    if (!this._model.selectionEnd) {
-      this.refresh(true);
-      return;
-    }
-
-    // Select the entire line if line select mode is active.
-    if (this._activeSelectionMode === SelectionMode.LINE) {
-      if (this._model.selectionEnd[1] < this._model.selectionStart[1]) {
-        this._model.selectionEnd[0] = 0;
-      } else {
-        this._model.selectionEnd[0] = this._bufferService.cols;
-      }
-    } else if (this._activeSelectionMode === SelectionMode.WORD) {
-      this._selectToWordAt(this._model.selectionEnd);
-    }
-
-    // Determine the amount of scrolling that will happen.
-    this._dragScrollAmount = this._getMouseEventScrollAmount(event);
-
-    // If the cursor was above or below the viewport, make sure it's at the
-    // start or end of the viewport respectively. This should only happen when
-    // NOT in column select mode.
-    if (this._activeSelectionMode !== SelectionMode.COLUMN) {
-      if (this._dragScrollAmount > 0) {
-        this._model.selectionEnd[0] = this._bufferService.cols;
-      } else if (this._dragScrollAmount < 0) {
-        this._model.selectionEnd[0] = 0;
-      }
-    }
-
-    // If the character is a wide character include the cell to the right in the
-    // selection. Note that selections at the very end of the line will never
-    // have a character.
-    const buffer = this._bufferService.buffer;
-    if (this._model.selectionEnd[1] < buffer.lines.length) {
-      const line = buffer.lines.get(this._model.selectionEnd[1]);
-      if (line && line.hasWidth(this._model.selectionEnd[0]) === 0) {
-        this._model.selectionEnd[0]++;
-      }
-    }
-
-    // Only draw here if the selection changes.
-    if (!previousSelectionEnd ||
-      previousSelectionEnd[0] !== this._model.selectionEnd[0] ||
-      previousSelectionEnd[1] !== this._model.selectionEnd[1]) {
-      this.refresh(true);
-    }
-  }
-
-  /**
-   * The callback that occurs every DRAG_SCROLL_INTERVAL ms that does the
-   * scrolling of the viewport.
-   */
-  private _dragScroll(): void {
-    if (!this._model.selectionEnd || !this._model.selectionStart) {
-      return;
-    }
-    if (this._dragScrollAmount) {
-      this._scrollLines(this._dragScrollAmount, false);
-      // Re-evaluate selection
-      // If the cursor was above or below the viewport, make sure it's at the
-      // start or end of the viewport respectively. This should only happen when
-      // NOT in column select mode.
-      const buffer = this._bufferService.buffer;
-      if (this._dragScrollAmount > 0) {
-        if (this._activeSelectionMode !== SelectionMode.COLUMN) {
-          this._model.selectionEnd[0] = this._bufferService.cols;
-        }
-        this._model.selectionEnd[1] = Math.min(buffer.ydisp + this._bufferService.rows, buffer.lines.length - 1);
-      } else {
-        if (this._activeSelectionMode !== SelectionMode.COLUMN) {
-          this._model.selectionEnd[0] = 0;
-        }
-        this._model.selectionEnd[1] = buffer.ydisp;
-      }
-      this.refresh();
-    }
-  }
-
-  /**
-   * Handles the mouseup event, removing the mousedown listeners.
-   * @param event The mouseup event.
-   */
-  private _onMouseUp(event: MouseEvent): void {
-    const timeElapsed = event.timeStamp - this._mouseDownTimeStamp;
-
-    this._removeMouseDownListeners();
-
-    if (this.selectionText.length <= 1 && timeElapsed < ALT_CLICK_MOVE_CURSOR_TIME) {
-      if (event.altKey && this._bufferService.buffer.ybase === this._bufferService.buffer.ydisp) {
-        const coordinates = this._mouseService.getCoords(
-          event,
-          this._element,
-          this._bufferService.cols,
-          this._bufferService.rows,
-          false
-        );
-        if (coordinates && coordinates[0] !== undefined && coordinates[1] !== undefined) {
-          const sequence = moveToCellSequence(coordinates[0] - 1, coordinates[1] - 1, this._bufferService, this._coreService.decPrivateModes.applicationCursorKeys);
-          this._coreService.triggerDataEvent(sequence, true);
-        }
-      }
-    } else if (this.hasSelection) {
-      this._onSelectionChange.fire();
-    }
-  }
-
-  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.
-    if (this._trimListener) {
-      this._trimListener.dispose();
-    }
-    this._trimListener = e.activeBuffer.lines.onTrim(amount => this._onTrim(amount));
-  }
-
-  /**
-   * Converts a viewport column to the character index on the buffer line, the
-   * latter takes into account wide characters.
-   * @param coords The coordinates to find the 2 index for.
-   */
-  private _convertViewportColToCharacterIndex(bufferLine: IBufferLine, coords: [number, number]): number {
-    let charIndex = coords[0];
-    for (let i = 0; coords[0] >= i; i++) {
-      const length = bufferLine.loadCell(i, this._workCell).getChars().length;
-      if (this._workCell.getWidth() === 0) {
-        // Wide characters aren't included in the line string so decrement the
-        // index so the index is back on the wide character.
-        charIndex--;
-      } else if (length > 1 && coords[0] !== i) {
-        // Emojis take up multiple characters, so adjust accordingly. For these
-        // we don't want ot include the character at the column as we're
-        // returning the start index in the string, not the end index.
-        charIndex += length - 1;
-      }
-    }
-    return charIndex;
-  }
-
-  public setSelection(col: number, row: number, length: number): void {
-    this._model.clearSelection();
-    this._removeMouseDownListeners();
-    this._model.selectionStart = [col, row];
-    this._model.selectionStartLength = length;
-    this.refresh();
-  }
-
-  /**
-   * Gets positional information for the word at the coordinated specified.
-   * @param coords The coordinates to get the word at.
-   */
-  private _getWordAt(coords: [number, number], allowWhitespaceOnlySelection: boolean, followWrappedLinesAbove: boolean = true, followWrappedLinesBelow: boolean = true): IWordPosition | undefined {
-    // Ensure coords are within viewport (eg. not within scroll bar)
-    if (coords[0] >= this._bufferService.cols) {
-      return undefined;
-    }
-
-    const buffer = this._bufferService.buffer;
-    const bufferLine = buffer.lines.get(coords[1]);
-    if (!bufferLine) {
-      return undefined;
-    }
-
-    const line = buffer.translateBufferLineToString(coords[1], false);
-
-    // Get actual index, taking into consideration wide characters
-    let startIndex = this._convertViewportColToCharacterIndex(bufferLine, coords);
-    let endIndex = startIndex;
-
-    // Record offset to be used later
-    const charOffset = coords[0] - startIndex;
-    let leftWideCharCount = 0;
-    let rightWideCharCount = 0;
-    let leftLongCharOffset = 0;
-    let rightLongCharOffset = 0;
-
-    if (line.charAt(startIndex) === ' ') {
-      // Expand until non-whitespace is hit
-      while (startIndex > 0 && line.charAt(startIndex - 1) === ' ') {
-        startIndex--;
-      }
-      while (endIndex < line.length && line.charAt(endIndex + 1) === ' ') {
-        endIndex++;
-      }
-    } else {
-      // Expand until whitespace is hit. This algorithm works by scanning left
-      // and right from the starting position, keeping both the index format
-      // (line) and the column format (bufferLine) in sync. When a wide
-      // character is hit, it is recorded and the column index is adjusted.
-      let startCol = coords[0];
-      let endCol = coords[0];
-
-      // Consider the initial position, skip it and increment the wide char
-      // variable
-      if (bufferLine.getWidth(startCol) === 0) {
-        leftWideCharCount++;
-        startCol--;
-      }
-      if (bufferLine.getWidth(endCol) === 2) {
-        rightWideCharCount++;
-        endCol++;
-      }
-
-      // Adjust the end index for characters whose length are > 1 (emojis)
-      const length = bufferLine.getString(endCol).length;
-      if (length > 1) {
-        rightLongCharOffset += length - 1;
-        endIndex += length - 1;
-      }
-
-      // Expand the string in both directions until a space is hit
-      while (startCol > 0 && startIndex > 0 && !this._isCharWordSeparator(bufferLine.loadCell(startCol - 1, this._workCell))) {
-        bufferLine.loadCell(startCol - 1, this._workCell);
-        const length = this._workCell.getChars().length;
-        if (this._workCell.getWidth() === 0) {
-          // If the next character is a wide char, record it and skip the column
-          leftWideCharCount++;
-          startCol--;
-        } else if (length > 1) {
-          // If the next character's string is longer than 1 char (eg. emoji),
-          // adjust the index
-          leftLongCharOffset += length - 1;
-          startIndex -= length - 1;
-        }
-        startIndex--;
-        startCol--;
-      }
-      while (endCol < bufferLine.length && endIndex + 1 < line.length && !this._isCharWordSeparator(bufferLine.loadCell(endCol + 1, this._workCell))) {
-        bufferLine.loadCell(endCol + 1, this._workCell);
-        const length = this._workCell.getChars().length;
-        if (this._workCell.getWidth() === 2) {
-          // If the next character is a wide char, record it and skip the column
-          rightWideCharCount++;
-          endCol++;
-        } else if (length > 1) {
-          // If the next character's string is longer than 1 char (eg. emoji),
-          // adjust the index
-          rightLongCharOffset += length - 1;
-          endIndex += length - 1;
-        }
-        endIndex++;
-        endCol++;
-      }
-    }
-
-    // Incremenet the end index so it is at the start of the next character
-    endIndex++;
-
-    // Calculate the start _column_, converting the the string indexes back to
-    // column coordinates.
-    let start =
-        startIndex // The index of the selection's start char in the line string
-        + charOffset // The difference between the initial char's column and index
-        - leftWideCharCount // The number of wide chars left of the initial char
-        + leftLongCharOffset; // The number of additional chars left of the initial char added by columns with strings longer than 1 (emojis)
-
-    // Calculate the length in _columns_, converting the the string indexes back
-    // to column coordinates.
-    let length = Math.min(this._bufferService.cols, // Disallow lengths larger than the terminal cols
-        endIndex // The index of the selection's end char in the line string
-        - startIndex // The index of the selection's start char in the line string
-        + leftWideCharCount // The number of wide chars left of the initial char
-        + rightWideCharCount // The number of wide chars right of the initial char (inclusive)
-        - leftLongCharOffset // The number of additional chars left of the initial char added by columns with strings longer than 1 (emojis)
-        - rightLongCharOffset); // The number of additional chars right of the initial char (inclusive) added by columns with strings longer than 1 (emojis)
-
-    if (!allowWhitespaceOnlySelection && line.slice(startIndex, endIndex).trim() === '') {
-      return undefined;
-    }
-
-    // Recurse upwards if the line is wrapped and the word wraps to the above line
-    if (followWrappedLinesAbove) {
-      if (start === 0 && bufferLine.getCodePoint(0) !== 32 /*' '*/) {
-        const previousBufferLine = buffer.lines.get(coords[1] - 1);
-        if (previousBufferLine && bufferLine.isWrapped && previousBufferLine.getCodePoint(this._bufferService.cols - 1) !== 32 /*' '*/) {
-          const previousLineWordPosition = this._getWordAt([this._bufferService.cols - 1, coords[1] - 1], false, true, false);
-          if (previousLineWordPosition) {
-            const offset = this._bufferService.cols - previousLineWordPosition.start;
-            start -= offset;
-            length += offset;
-          }
-        }
-      }
-    }
-
-    // Recurse downwards if the line is wrapped and the word wraps to the next line
-    if (followWrappedLinesBelow) {
-      if (start + length === this._bufferService.cols && bufferLine.getCodePoint(this._bufferService.cols - 1) !== 32 /*' '*/) {
-        const nextBufferLine = buffer.lines.get(coords[1] + 1);
-        if (nextBufferLine && nextBufferLine.isWrapped && nextBufferLine.getCodePoint(0) !== 32 /*' '*/) {
-          const nextLineWordPosition = this._getWordAt([0, coords[1] + 1], false, false, true);
-          if (nextLineWordPosition) {
-            length += nextLineWordPosition.length;
-          }
-        }
-      }
-    }
-
-    return { start, length };
-  }
-
-  /**
-   * Selects the word at the coordinates specified.
-   * @param coords The coordinates to get the word at.
-   * @param allowWhitespaceOnlySelection If whitespace should be selected
-   */
-  protected _selectWordAt(coords: [number, number], allowWhitespaceOnlySelection: boolean): void {
-    const wordPosition = this._getWordAt(coords, allowWhitespaceOnlySelection);
-    if (wordPosition) {
-      // Adjust negative start value
-      while (wordPosition.start < 0) {
-        wordPosition.start += this._bufferService.cols;
-        coords[1]--;
-      }
-      this._model.selectionStart = [wordPosition.start, coords[1]];
-      this._model.selectionStartLength = wordPosition.length;
-    }
-  }
-
-  /**
-   * Sets the selection end to the word at the coordinated specified.
-   * @param coords The coordinates to get the word at.
-   */
-  private _selectToWordAt(coords: [number, number]): void {
-    const wordPosition = this._getWordAt(coords, true);
-    if (wordPosition) {
-      let endRow = coords[1];
-
-      // Adjust negative start value
-      while (wordPosition.start < 0) {
-        wordPosition.start += this._bufferService.cols;
-        endRow--;
-      }
-
-      // Adjust wrapped length value, this only needs to happen when values are reversed as in that
-      // case we're interested in the start of the word, not the end
-      if (!this._model.areSelectionValuesReversed()) {
-        while (wordPosition.start + wordPosition.length > this._bufferService.cols) {
-          wordPosition.length -= this._bufferService.cols;
-          endRow++;
-        }
-      }
-
-      this._model.selectionEnd = [this._model.areSelectionValuesReversed() ? wordPosition.start : wordPosition.start + wordPosition.length, endRow];
-    }
-  }
-
-  /**
-   * Gets whether the character is considered a word separator by the select
-   * word logic.
-   * @param char The character to check.
-   */
-  private _isCharWordSeparator(cell: CellData): boolean {
-    // Zero width characters are never separators as they are always to the
-    // right of wide characters
-    if (cell.getWidth() === 0) {
-      return false;
-    }
-    return this._optionsService.options.wordSeparator.indexOf(cell.getChars()) >= 0;
-  }
-
-  /**
-   * Selects the line specified.
-   * @param line The line index.
-   */
-  protected _selectLineAt(line: number): void {
-    const wrappedRange = this._bufferService.buffer.getWrappedRangeForLine(line);
-    this._model.selectionStart = [0, wrappedRange.first];
-    this._model.selectionEnd = [this._bufferService.cols, wrappedRange.last];
-    this._model.selectionStartLength = 0;
-  }
-}