Avoid keyboard-height padding inside setup dialogues

test/e2e-obsidian/README.md

@@ -50,6 +50,8 @@ Set `showVerboseLog: true` only in isolated plug-in data when a focused investig
 
 Collect evidence before cleanup, and keep process, Vault, profile, and remote-fixture cleanup in `finally`. After `app.emulateMobile(true)`, use the active CDP renderer for fixture operations because Obsidian may remove desktop-only CLI commands. Visually inspect screenshots before copying selected images into user documentation; a passing locator assertion does not establish that a dialogue is readable or unobstructed.
 
+The dialogue scenario simulates the host keyboard-height variable while the mobile CouchDB setup dialogue is open. It verifies that the space after the final action does not grow with the keyboard height and restores the original variable and scroll position afterwards. This layout fixture does not open a physical software keyboard.
+
 ## Local Setup
 
 Set `OBSIDIAN_BINARY` when Obsidian is not installed in a standard location. Set `OBSIDIAN_CLI` as well when its companion executable is outside the built-in discovery paths.

test/e2e-obsidian/scripts/dialog-mounts.ts

@@ -431,6 +431,47 @@ async function assertDialogueActionAlignment(modal: Locator, mode: DialogueMode,
     }
 }
 
+async function assertNoExtraKeyboardSpace(page: Page, modal: Locator): Promise<void> {
+    const original = await page.evaluate(() => ({
+        value: document.body.style.getPropertyValue("--keyboard-height"),
+        priority: document.body.style.getPropertyPriority("--keyboard-height"),
+    }));
+    const originalScroll = await modal.locator(".modal-content").evaluate((element) => element.scrollTop);
+    const keyboardHeight = await page.evaluate(() => Math.round(innerHeight * 0.4));
+    let baseline: number | undefined;
+    try {
+        for (const height of [0, keyboardHeight, 0]) {
+            await page.evaluate((value) => document.body.style.setProperty("--keyboard-height", `${value}px`), height);
+            await modal.locator(".modal-content").evaluate((element) => {
+                element.scrollTop = element.scrollHeight;
+            });
+            const gap = await modal.locator(".dialog-host").evaluate((host) => {
+                const buttons = Array.from(host.querySelectorAll("button")).filter(
+                    (button) => button.getClientRects().length > 0
+                );
+                const last = buttons[buttons.length - 1];
+                if (last === undefined) throw new Error("The dialogue has no action button.");
+                return host.getBoundingClientRect().bottom - last.getBoundingClientRect().bottom;
+            });
+            console.log(JSON.stringify({ event: "dialogue-keyboard-spacing", height, gap, baseline }));
+            baseline ??= gap;
+            if (Math.abs(gap - baseline) > 1) {
+                throw new Error(
+                    `Expected the keyboard not to add blank content after the final action: ${JSON.stringify({ height, gap, baseline })}`
+                );
+            }
+        }
+    } finally {
+        await page.evaluate(({ value, priority }) => {
+            if (value === "") document.body.style.removeProperty("--keyboard-height");
+            else document.body.style.setProperty("--keyboard-height", value, priority);
+        }, original);
+        await modal.locator(".modal-content").evaluate((element, top) => {
+            element.scrollTop = top;
+        }, originalScroll);
+    }
+}
+
 async function verifyRemoteSelectionDialogue(mode: DialogueMode): Promise<string> {
     await openRemoteSelectionDialogue();
     const screenshotPath = await captureObsidianDialogue(
@@ -561,6 +602,7 @@ async function verifyCouchDBSettingsDialogue(mode: DialogueMode): Promise<string
             await assertDialogueActionAlignment(modal, mode, "CouchDB settings dialogue");
             if (mode === "mobile") {
                 await assertMobileDialogueLayout(page, modal, "CouchDB settings dialogue");
+                await assertNoExtraKeyboardSpace(page, modal);
             }
         }
     );