Method updateView

src/mode/modeHandler.ts:1288–1671

(
    args: { drawSelection: boolean; revealRange: boolean } = {
      drawSelection: true,
      revealRange: true,
    },
  )

  }

  public updateView(
    args: { drawSelection: boolean; revealRange: boolean } = {
      drawSelection: true,
      revealRange: true,
    },
  ): void {
    // Draw selection (or cursor)
    if (args.drawSelection) {
      let selectionMode: Mode = this.vimState.currentMode;
      if (this.vimState.modeData.mode === Mode.SearchInProgressMode) {
        selectionMode = this.vimState.modeData.commandLine.previousMode;
      } else if (this.vimState.modeData.mode === Mode.CommandlineInProgress) {
        selectionMode = this.vimState.modeData.commandLine.previousMode;
      } else if (this.vimState.modeData.mode === Mode.SurroundInputMode) {
        selectionMode = this.vimState.surround!.previousMode;
      }

      let selections: vscode.Selection[] = [];
      for (const cursor of this.vimState.cursors) {
        let { start, stop } = cursor;
        switch (selectionMode) {
          case Mode.Visual:
            /**
             * Always select the letter that we started visual mode on, no matter
             * if we are in front or behind it. Imagine that we started visual mode
             * with some text like this:
             *
             *   abc|def
             *
             * (The | represents the cursor.) If we now press w, we'll select def,
             * but if we hit b we expect to select abcd, so we need to getRight() on the
             * start of the selection when it precedes where we started visual mode.
             */
            if (start.isAfterOrEqual(stop)) {
              start = start.getRight();
            }

            selections.push(new vscode.Selection(start, stop));
            break;

          case Mode.VisualLine:
            if (start.isBeforeOrEqual(stop)) {
              selections.push(new vscode.Selection(start.getLineBegin(), stop.getLineEnd()));
            } else {
              selections.push(new vscode.Selection(start.getLineEnd(), stop.getLineBegin()));
            }
            break;

          case Mode.VisualBlock:
            for (const line of TextEditor.iterateLinesInBlock(this.vimState, cursor)) {
              selections.push(
                new vscode.Selection(
                  this.vimState.document.validatePosition(line.start),
                  this.vimState.document.validatePosition(line.end),
                ),
              );
            }
            break;