[desk-tool] Add button for diffing against latest published version

sanity-io · Oct 6, 2020 · 1900fd4 · 1900fd4
1 parent 8785a26
commit 1900fd4
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Showing 2 changed files with 32 additions and 0 deletions.
diff --git a/packages/@sanity/desk-tool/src/panes/documentPane/DocumentPane.tsx b/packages/@sanity/desk-tool/src/panes/documentPane/DocumentPane.tsx
@@ -320,6 +320,7 @@ function DocumentPane(props: Props) {
       <div className={styles.container}>
         {isHistoryOpen && (
           <div className={styles.historyTimelineContainer}>
+            <SelectPublishedButton timeId={timeline.publishedTimeId()} onSelect={toggleHistory} />
             <SelectHistoryDisplayed value={historyDisplayed} onChange={toggleHistoryDisplayed} />
             <HistoryTimelinePanel
               timeline={timeline}
@@ -500,4 +501,24 @@ function SelectHistoryDisplayed({
   )
 }
 
+function SelectPublishedButton({
+  timeId,
+  onSelect
+}: {
+  timeId: string | null
+  onSelect: (timeId: string) => void
+}) {
+  return (
+    <button
+      type="button"
+      disabled={timeId === null}
+      onClick={() => {
+        if (timeId) onSelect(timeId)
+      }}
+    >
+      Compare against latest published
+    </button>
+  )
+}
+
 export default DocumentPane
diff --git a/packages/@sanity/desk-tool/src/panes/documentPane/history/timeline.ts b/packages/@sanity/desk-tool/src/panes/documentPane/history/timeline.ts
@@ -274,6 +274,17 @@ export class Timeline {
     return this.createTimeRef(chunkIdx, chunk).id
   }
 
+  publishedTimeId(): string | null {
+    for (let chunkIdx = this._chunks.lastIdx; chunkIdx >= this._chunks.firstIdx; chunkIdx--) {
+      const chunk = this._chunks.get(chunkIdx)
+      if (chunk.type === 'publish') {
+        return this.createTimeId(chunkIdx, chunk)
+      }
+    }
+
+    return null
+  }
+
   /** Creates a time reference from a chunk. */
   private createTimeRef(chunkIdx: number, chunk = this._chunks.get(chunkIdx)): TimeRef {
     const timestamp = Math.round(