X-Git-Url: https://git.josue.xyz/?p=VSoRC%2F.git;a=blobdiff_plain;f=node_modules%2Fxterm%2Fsrc%2Fbrowser%2FViewport.ts;fp=node_modules%2Fxterm%2Fsrc%2Fbrowser%2FViewport.ts;h=0000000000000000000000000000000000000000;hp=b88f381d80ac0aa4cab3a11ba6f44f887a2a7786;hb=5e96dd57ddd883604e87f62bdddcb111c63a6e1a;hpb=acb5f682a2b75b972710cabd81658f63071324b0

diff --git a/node_modules/xterm/src/browser/Viewport.ts b/node_modules/xterm/src/browser/Viewport.ts
deleted file mode 100644
index b88f381..0000000
--- a/node_modules/xterm/src/browser/Viewport.ts
+++ /dev/null
@@ -1,267 +0,0 @@
-/**
- * Copyright (c) 2016 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-import { Disposable } from 'common/Lifecycle';
-import { addDisposableDomListener } from 'browser/Lifecycle';
-import { IColorSet, IViewport } from 'browser/Types';
-import { ICharSizeService, IRenderService } from 'browser/services/Services';
-import { IBufferService, IOptionsService } from 'common/services/Services';
-
-const FALLBACK_SCROLL_BAR_WIDTH = 15;
-
-/**
- * Represents the viewport of a terminal, the visible area within the larger buffer of output.
- * Logic for the virtual scroll bar is included in this object.
- */
-export class Viewport extends Disposable implements IViewport {
-  public scrollBarWidth: number = 0;
-  private _currentRowHeight: number = 0;
-  private _lastRecordedBufferLength: number = 0;
-  private _lastRecordedViewportHeight: number = 0;
-  private _lastRecordedBufferHeight: number = 0;
-  private _lastTouchY: number = 0;
-  private _lastScrollTop: number = 0;
-
-  // Stores a partial line amount when scrolling, this is used to keep track of how much of a line
-  // is scrolled so we can "scroll" over partial lines and feel natural on touchpads. This is a
-  // quick fix and could have a more robust solution in place that reset the value when needed.
-  private _wheelPartialScroll: number = 0;
-
-  private _refreshAnimationFrame: number | null = null;
-  private _ignoreNextScrollEvent: boolean = false;
-
-  constructor(
-    private readonly _scrollLines: (amount: number, suppressEvent: boolean) => void,
-    private readonly _viewportElement: HTMLElement,
-    private readonly _scrollArea: HTMLElement,
-    @IBufferService private readonly _bufferService: IBufferService,
-    @IOptionsService private readonly _optionsService: IOptionsService,
-    @ICharSizeService private readonly _charSizeService: ICharSizeService,
-    @IRenderService private readonly _renderService: IRenderService
-  ) {
-    super();
-
-    // Measure the width of the scrollbar. If it is 0 we can assume it's an OSX overlay scrollbar.
-    // Unfortunately the overlay scrollbar would be hidden underneath the screen element in that case,
-    // therefore we account for a standard amount to make it visible
-    this.scrollBarWidth = (this._viewportElement.offsetWidth - this._scrollArea.offsetWidth) || FALLBACK_SCROLL_BAR_WIDTH;
-    this.register(addDisposableDomListener(this._viewportElement, 'scroll', this._onScroll.bind(this)));
-
-    // Perform this async to ensure the ICharSizeService is ready.
-    setTimeout(() => this.syncScrollArea(), 0);
-  }
-
-  public onThemeChange(colors: IColorSet): void {
-    this._viewportElement.style.backgroundColor = colors.background.css;
-  }
-
-  /**
-   * Refreshes row height, setting line-height, viewport height and scroll area height if
-   * necessary.
-   */
-  private _refresh(immediate: boolean): void {
-    if (immediate) {
-      this._innerRefresh();
-      if (this._refreshAnimationFrame !== null) {
-        cancelAnimationFrame(this._refreshAnimationFrame);
-      }
-      return;
-    }
-    if (this._refreshAnimationFrame === null) {
-      this._refreshAnimationFrame = requestAnimationFrame(() => this._innerRefresh());
-    }
-  }
-
-  private _innerRefresh(): void {
-    if (this._charSizeService.height > 0) {
-      this._currentRowHeight = this._renderService.dimensions.scaledCellHeight / window.devicePixelRatio;
-      this._lastRecordedViewportHeight = this._viewportElement.offsetHeight;
-      const newBufferHeight = Math.round(this._currentRowHeight * this._lastRecordedBufferLength) + (this._lastRecordedViewportHeight - this._renderService.dimensions.canvasHeight);
-      if (this._lastRecordedBufferHeight !== newBufferHeight) {
-        this._lastRecordedBufferHeight = newBufferHeight;
-        this._scrollArea.style.height = this._lastRecordedBufferHeight + 'px';
-      }
-    }
-
-    // Sync scrollTop
-    const scrollTop = this._bufferService.buffer.ydisp * this._currentRowHeight;
-    if (this._viewportElement.scrollTop !== scrollTop) {
-      // Ignore the next scroll event which will be triggered by setting the scrollTop as we do not
-      // want this event to scroll the terminal
-      this._ignoreNextScrollEvent = true;
-      this._viewportElement.scrollTop = scrollTop;
-    }
-
-    this._refreshAnimationFrame = null;
-  }
-  /**
-   * Updates dimensions and synchronizes the scroll area if necessary.
-   */
-  public syncScrollArea(immediate: boolean = false): void {
-    // If buffer height changed
-    if (this._lastRecordedBufferLength !== this._bufferService.buffer.lines.length) {
-      this._lastRecordedBufferLength = this._bufferService.buffer.lines.length;
-      this._refresh(immediate);
-      return;
-    }
-
-    // If viewport height changed
-    if (this._lastRecordedViewportHeight !== this._renderService.dimensions.canvasHeight) {
-      this._refresh(immediate);
-      return;
-    }
-
-    // If the buffer position doesn't match last scroll top
-    const newScrollTop = this._bufferService.buffer.ydisp * this._currentRowHeight;
-    if (this._lastScrollTop !== newScrollTop) {
-      this._refresh(immediate);
-      return;
-    }
-
-    // If element's scroll top changed, this can happen when hiding the element
-    if (this._lastScrollTop !== this._viewportElement.scrollTop) {
-      this._refresh(immediate);
-      return;
-    }
-
-    // If row height changed
-    if (this._renderService.dimensions.scaledCellHeight / window.devicePixelRatio !== this._currentRowHeight) {
-      this._refresh(immediate);
-      return;
-    }
-  }
-
-  /**
-   * Handles scroll events on the viewport, calculating the new viewport and requesting the
-   * terminal to scroll to it.
-   * @param ev The scroll event.
-   */
-  private _onScroll(ev: Event): void {
-    // Record current scroll top position
-    this._lastScrollTop = this._viewportElement.scrollTop;
-
-    // Don't attempt to scroll if the element is not visible, otherwise scrollTop will be corrupt
-    // which causes the terminal to scroll the buffer to the top
-    if (!this._viewportElement.offsetParent) {
-      return;
-    }
-
-    // Ignore the event if it was flagged to ignore (when the source of the event is from Viewport)
-    if (this._ignoreNextScrollEvent) {
-      this._ignoreNextScrollEvent = false;
-      return;
-    }
-
-    const newRow = Math.round(this._lastScrollTop / this._currentRowHeight);
-    const diff = newRow - this._bufferService.buffer.ydisp;
-    this._scrollLines(diff, true);
-  }
-
-  /**
-   * Handles bubbling of scroll event in case the viewport has reached top or bottom
-   * @param ev The scroll event.
-   * @param amount The amount scrolled
-   */
-  private _bubbleScroll(ev: Event, amount: number): boolean {
-    const scrollPosFromTop = this._viewportElement.scrollTop + this._lastRecordedViewportHeight;
-    if ((amount < 0 && this._viewportElement.scrollTop !== 0) ||
-        (amount > 0 &&  scrollPosFromTop < this._lastRecordedBufferHeight)) {
-      if (ev.cancelable) {
-        ev.preventDefault();
-      }
-      return false;
-    }
-    return true;
-  }
-
-  /**
-   * Handles mouse wheel events by adjusting the viewport's scrollTop and delegating the actual
-   * scrolling to `onScroll`, this event needs to be attached manually by the consumer of
-   * `Viewport`.
-   * @param ev The mouse wheel event.
-   */
-  public onWheel(ev: WheelEvent): boolean {
-    const amount = this._getPixelsScrolled(ev);
-    if (amount === 0) {
-      return false;
-    }
-    this._viewportElement.scrollTop += amount;
-    return this._bubbleScroll(ev, amount);
-  }
-
-  private _getPixelsScrolled(ev: WheelEvent): number {
-    // Do nothing if it's not a vertical scroll event
-    if (ev.deltaY === 0) {
-      return 0;
-    }
-
-    // Fallback to WheelEvent.DOM_DELTA_PIXEL
-    let amount = this._applyScrollModifier(ev.deltaY, ev);
-    if (ev.deltaMode === WheelEvent.DOM_DELTA_LINE) {
-      amount *= this._currentRowHeight;
-    } else if (ev.deltaMode === WheelEvent.DOM_DELTA_PAGE) {
-      amount *= this._currentRowHeight * this._bufferService.rows;
-    }
-    return amount;
-  }
-
-  /**
-   * Gets the number of pixels scrolled by the mouse event taking into account what type of delta
-   * is being used.
-   * @param ev The mouse wheel event.
-   */
-  public getLinesScrolled(ev: WheelEvent): number {
-    // Do nothing if it's not a vertical scroll event
-    if (ev.deltaY === 0) {
-      return 0;
-    }
-
-    // Fallback to WheelEvent.DOM_DELTA_LINE
-    let amount = this._applyScrollModifier(ev.deltaY, ev);
-    if (ev.deltaMode === WheelEvent.DOM_DELTA_PIXEL) {
-      amount /= this._currentRowHeight + 0.0; // Prevent integer division
-      this._wheelPartialScroll += amount;
-      amount = Math.floor(Math.abs(this._wheelPartialScroll)) * (this._wheelPartialScroll > 0 ? 1 : -1);
-      this._wheelPartialScroll %= 1;
-    } else if (ev.deltaMode === WheelEvent.DOM_DELTA_PAGE) {
-      amount *= this._bufferService.rows;
-    }
-    return amount;
-  }
-
-  private _applyScrollModifier(amount: number, ev: WheelEvent): number {
-    const modifier = this._optionsService.options.fastScrollModifier;
-    // Multiply the scroll speed when the modifier is down
-    if ((modifier === 'alt' && ev.altKey) ||
-        (modifier === 'ctrl' && ev.ctrlKey) ||
-        (modifier === 'shift' && ev.shiftKey)) {
-      return amount * this._optionsService.options.fastScrollSensitivity * this._optionsService.options.scrollSensitivity;
-    }
-
-    return amount * this._optionsService.options.scrollSensitivity;
-  }
-
-  /**
-   * Handles the touchstart event, recording the touch occurred.
-   * @param ev The touch event.
-   */
-  public onTouchStart(ev: TouchEvent): void {
-    this._lastTouchY = ev.touches[0].pageY;
-  }
-
-  /**
-   * Handles the touchmove event, scrolling the viewport if the position shifted.
-   * @param ev The touch event.
-   */
-  public onTouchMove(ev: TouchEvent): boolean {
-    const deltaY = this._lastTouchY - ev.touches[0].pageY;
-    this._lastTouchY = ev.touches[0].pageY;
-    if (deltaY === 0) {
-      return false;
-    }
-    this._viewportElement.scrollTop += deltaY;
-    return this._bubbleScroll(ev, deltaY);
-  }
-}