chore: import upstream snapshot with attribution

apps/sim/lib/pptx-renderer/renderer/render-context.ts

@@ -0,0 +1,80 @@
+/**
+ * Render context — provides resolved theme/master/layout chain for a given slide.
+ */
+
+import type { ECharts } from 'echarts'
+import type { LayoutData } from '../model/layout'
+import type { MasterData } from '../model/master'
+import type { PresentationData } from '../model/presentation'
+import type { SlideData } from '../model/slide'
+import type { ThemeData } from '../model/theme'
+import type { SafeXmlNode } from '../parser/xml-parser'
+
+export interface RenderContext {
+  presentation: PresentationData
+  slide: SlideData
+  theme: ThemeData
+  master: MasterData
+  layout: LayoutData
+  mediaUrlCache: Map<string, string> // path -> blob URL
+  colorCache: Map<string, { color: string; alpha: number }>
+  /** Shared set of live ECharts instances for explicit disposal. */
+  chartInstances?: Set<ECharts>
+  /** Fill node from parent group's grpSpPr, used to resolve `a:grpFill` in children. */
+  groupFillNode?: SafeXmlNode
+  /**
+   * Navigation callback for shape-level hyperlink actions (action buttons, clickable shapes).
+   * Called with target slide index (0-based) for `ppaction://hlinksldjump`,
+   * or with a URL string for external links.
+   */
+  onNavigate?: (target: { slideIndex?: number; url?: string }) => void
+}
+
+export function createRenderContext(
+  presentation: PresentationData,
+  slide: SlideData,
+  mediaUrlCache?: Map<string, string>,
+  chartInstances?: Set<ECharts>
+): RenderContext {
+  // Resolve the chain: slide -> layout -> master -> theme
+  const layoutPath = presentation.slideToLayout.get(slide.index) || ''
+  const masterPath = presentation.layoutToMaster.get(layoutPath) || ''
+  const themePath = presentation.masterToTheme.get(masterPath) || ''
+
+  const layout: LayoutData = presentation.layouts.get(layoutPath) || {
+    placeholders: [],
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    spTree: {} as any,
+    rels: new Map(),
+    showMasterSp: true,
+  }
+
+  const master: MasterData = presentation.masters.get(masterPath) || {
+    colorMap: new Map(),
+    textStyles: {},
+    placeholders: [],
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    spTree: {} as any,
+    rels: new Map(),
+  }
+
+  const theme: ThemeData = presentation.themes.get(themePath) || {
+    colorScheme: new Map(),
+    majorFont: { latin: 'Calibri', ea: '', cs: '' },
+    minorFont: { latin: 'Calibri', ea: '', cs: '' },
+    fillStyles: [],
+    lineStyles: [],
+    effectStyles: [],
+  }
+
+  return {
+    presentation,
+    slide,
+    theme,
+    master,
+    layout,
+    mediaUrlCache: mediaUrlCache ?? new Map(),
+    colorCache: new Map(),
+    chartInstances,
+  }
+}