fix: inline review comment submit and layout (#17948)

3 files changed, 131 insertions, 7 deletions

diff --git a/packages/app/e2e/session/session-review.spec.ts b/packages/app/e2e/session/session-review.spec.ts
index 28c85edb0..c0421f028 100644
--- a/packages/app/e2e/session/session-review.spec.ts
+++ b/packages/app/e2e/session/session-review.spec.ts
@@ -123,6 +123,101 @@ async function spot(page: Parameters<typeof test>[0]["page"], file: string) {
   }, file)
 }
 
+async function comment(page: Parameters<typeof test>[0]["page"], file: string, note: string) {
+  const row = page.locator(`[data-file="${file}"]`).first()
+  await expect(row).toBeVisible()
+
+  const line = row.locator('diffs-container [data-line="2"]').first()
+  await expect(line).toBeVisible()
+  await line.hover()
+
+  const add = row.getByRole("button", { name: /^Comment$/ }).first()
+  await expect(add).toBeVisible()
+  await add.click()
+
+  const area = row.locator('[data-slot="line-comment-textarea"]').first()
+  await expect(area).toBeVisible()
+  await area.fill(note)
+
+  const submit = row.locator('[data-slot="line-comment-action"][data-variant="primary"]').first()
+  await expect(submit).toBeEnabled()
+  await submit.click()
+
+  await expect(row.locator('[data-slot="line-comment-content"]').filter({ hasText: note }).first()).toBeVisible()
+  await expect(row.locator('[data-slot="line-comment-tools"]').first()).toBeVisible()
+}
+
+async function overflow(page: Parameters<typeof test>[0]["page"], file: string) {
+  const row = page.locator(`[data-file="${file}"]`).first()
+  const view = page.locator('[data-slot="session-review-scroll"] .scroll-view__viewport').first()
+  const pop = row.locator('[data-slot="line-comment-popover"][data-inline-body]').first()
+  const tools = row.locator('[data-slot="line-comment-tools"]').first()
+
+  const [width, viewBox, popBox, toolsBox] = await Promise.all([
+    view.evaluate((el) => el.scrollWidth - el.clientWidth),
+    view.boundingBox(),
+    pop.boundingBox(),
+    tools.boundingBox(),
+  ])
+
+  if (!viewBox || !popBox || !toolsBox) return null
+
+  return {
+    width,
+    pop: popBox.x + popBox.width - (viewBox.x + viewBox.width),
+    tools: toolsBox.x + toolsBox.width - (viewBox.x + viewBox.width),
+  }
+}
+
+test("review applies inline comment clicks without horizontal overflow", async ({ page, withProject }) => {
+  test.setTimeout(180_000)
+
+  const tag = `review-comment-${Date.now()}`
+  const file = `review-comment-${tag}.txt`
+  const note = `comment ${tag}`
+
+  await page.setViewportSize({ width: 1280, height: 900 })
+
+  await withProject(async (project) => {
+    const sdk = createSdk(project.directory)
+
+    await withSession(sdk, `e2e review comment ${tag}`, async (session) => {
+      await patch(sdk, session.id, seed([{ file, mark: tag }]))
+
+      await expect
+        .poll(
+          async () => {
+            const diff = await sdk.session.diff({ sessionID: session.id }).then((res) => res.data ?? [])
+            return diff.length
+          },
+          { timeout: 60_000 },
+        )
+        .toBe(1)
+
+      await project.gotoSession(session.id)
+      await show(page)
+
+      const tab = page.getByRole("tab", { name: /Review/i }).first()
+      await expect(tab).toBeVisible()
+      await tab.click()
+
+      await expand(page)
+      await waitMark(page, file, tag)
+      await comment(page, file, note)
+
+      await expect
+        .poll(async () => (await overflow(page, file))?.width ?? Number.POSITIVE_INFINITY, { timeout: 10_000 })
+        .toBeLessThanOrEqual(1)
+      await expect
+        .poll(async () => (await overflow(page, file))?.pop ?? Number.POSITIVE_INFINITY, { timeout: 10_000 })
+        .toBeLessThanOrEqual(1)
+      await expect
+        .poll(async () => (await overflow(page, file))?.tools ?? Number.POSITIVE_INFINITY, { timeout: 10_000 })
+        .toBeLessThanOrEqual(1)
+    })
+  })
+})
+
 test("review keeps scroll position after a live diff update", async ({ page, withProject }) => {
   test.skip(Boolean(process.env.CI), "Flaky in CI for now.")
   test.setTimeout(180_000)
diff --git a/packages/ui/src/components/line-comment-styles.ts b/packages/ui/src/components/line-comment-styles.ts
index d5be67554..8fd02f088 100644
--- a/packages/ui/src/components/line-comment-styles.ts
+++ b/packages/ui/src/components/line-comment-styles.ts
@@ -15,6 +15,7 @@ export const lineCommentStyles = `
   right: auto;
   display: flex;
   width: 100%;
+  min-width: 0;
   align-items: flex-start;
 }
 
@@ -64,6 +65,7 @@ export const lineCommentStyles = `
   z-index: var(--line-comment-popover-z, 40);
   min-width: 200px;
   max-width: none;
+  box-sizing: border-box;
   border-radius: 8px;
   background: var(--surface-raised-stronger-non-alpha);
   box-shadow: var(--shadow-xxs-border);
@@ -75,9 +77,10 @@ export const lineCommentStyles = `
   top: auto;
   right: auto;
   margin-left: 8px;
-  flex: 0 1 600px;
-  width: min(100%, 600px);
-  max-width: min(100%, 600px);
+  flex: 1 1 0%;
+  width: auto;
+  max-width: 100%;
+  min-width: 0;
 }
 
 [data-component="line-comment"][data-inline] [data-slot="line-comment-popover"][data-inline-body] {
@@ -96,23 +99,27 @@ export const lineCommentStyles = `
 }
 
 [data-component="line-comment"][data-inline][data-variant="editor"] [data-slot="line-comment-popover"] {
-  flex-basis: 600px;
+  width: 100%;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-content"] {
   display: flex;
   flex-direction: column;
   gap: 6px;
+  width: 100%;
+  min-width: 0;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-head"] {
   display: flex;
   align-items: flex-start;
   gap: 8px;
+  min-width: 0;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-text"] {
   flex: 1;
+  min-width: 0;
   font-family: var(--font-family-sans);
   font-size: var(--font-size-base);
   font-weight: var(--font-weight-regular);
@@ -120,6 +127,7 @@ export const lineCommentStyles = `
   letter-spacing: var(--letter-spacing-normal);
   color: var(--text-strong);
   white-space: pre-wrap;
+  overflow-wrap: anywhere;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-tools"] {
@@ -127,6 +135,7 @@ export const lineCommentStyles = `
   display: flex;
   align-items: center;
   justify-content: flex-end;
+  min-width: 0;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-label"],
@@ -137,17 +146,22 @@ export const lineCommentStyles = `
   line-height: var(--line-height-large);
   letter-spacing: var(--letter-spacing-normal);
   color: var(--text-weak);
-  white-space: nowrap;
+  min-width: 0;
+  white-space: normal;
+  overflow-wrap: anywhere;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-editor"] {
   display: flex;
   flex-direction: column;
   gap: 8px;
+  width: 100%;
+  min-width: 0;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-textarea"] {
   width: 100%;
+  box-sizing: border-box;
   resize: vertical;
   padding: 8px;
   border-radius: var(--radius-md);
@@ -167,11 +181,14 @@ export const lineCommentStyles = `
 [data-component="line-comment"] [data-slot="line-comment-actions"] {
   display: flex;
   align-items: center;
+  flex-wrap: wrap;
   gap: 8px;
   padding-left: 8px;
+  min-width: 0;
 }
 
 [data-component="line-comment"] [data-slot="line-comment-editor-label"] {
+  flex: 1 1 220px;
   margin-right: auto;
 }
 
diff --git a/packages/ui/src/components/line-comment.tsx b/packages/ui/src/components/line-comment.tsx
index ff5d1df00..bc47ad940 100644
--- a/packages/ui/src/components/line-comment.tsx
+++ b/packages/ui/src/components/line-comment.tsx
@@ -206,6 +206,16 @@ export const LineCommentEditor = (props: LineCommentEditorProps) => {
   const [text, setText] = createSignal(split.value)
 
   const focus = () => refs.textarea?.focus()
+  const hold: JSX.EventHandlerUnion<HTMLButtonElement, MouseEvent> = (e) => {
+    e.preventDefault()
+    e.stopPropagation()
+  }
+  const click =
+    (fn: VoidFunction): JSX.EventHandlerUnion<HTMLButtonElement, MouseEvent> =>
+    (e) => {
+      e.stopPropagation()
+      fn()
+    }
 
   createEffect(() => {
     setText(split.value)
@@ -268,7 +278,8 @@ export const LineCommentEditor = (props: LineCommentEditorProps) => {
                   type="button"
                   data-slot="line-comment-action"
                   data-variant="ghost"
-                  on:click={split.onCancel as any}
+                  on:mousedown={hold as any}
+                  on:click={click(split.onCancel) as any}
                 >
                   {split.cancelLabel ?? i18n.t("ui.common.cancel")}
                 </button>
@@ -277,7 +288,8 @@ export const LineCommentEditor = (props: LineCommentEditorProps) => {
                   data-slot="line-comment-action"
                   data-variant="primary"
                   disabled={text().trim().length === 0}
-                  on:click={submit as any}
+                  on:mousedown={hold as any}
+                  on:click={click(submit) as any}
                 >
                   {split.submitLabel ?? i18n.t("ui.lineComment.submit")}
                 </button>