Method goToSlide

apps/sim/lib/pptx-renderer/core/viewer.ts:276–302

(index: number, scrollOptions?: ScrollIntoViewOptions)

  // -----------------------------------------------------------------------

  async goToSlide(index: number, scrollOptions?: ScrollIntoViewOptions): Promise<void> {
    if (!this.presentation) return
    const prev = this.currentSlide
    this.currentSlide = Math.max(0, Math.min(index, this.presentation.slides.length - 1))
    if (this.currentSlide !== prev) {
      this.emitSlideChange(this.currentSlide)
    }
    if (this.activeRenderMode === 'slide') {
      const { scale, displayWidth, displayHeight } = this.getDisplayMetrics()
      this.renderSingleSlide(scale, displayWidth, displayHeight)
    } else {
      this.suppressScrollChange = true
      await new Promise<void>((resolve) =>
        requestAnimationFrame(() => {
          this.suppressScrollChange = false
          resolve()
        })
      )
      this.ensureListSlideMountedFn?.(this.currentSlide)
      const targetChild = this.container.querySelector<HTMLElement>(
        `[data-slide-index="${this.currentSlide}"]`
      )
      if (targetChild) {
        targetChild.scrollIntoView(scrollOptions ?? { behavior: 'smooth', block: 'center' })
      }
    }
  }

  async setZoom(percent: number): Promise<void> {
    const normalized = this.normalizeZoomPercent(percent)