feat(core): add no_redirection_bitmap API on Windows

[zetaloop]

Related to #6775 and #14515.

Exposes Tao's existing Windows with_no_redirection_bitmap option through Tauri window builders and window config.

This allows transparent windows to avoid the initial white redirection bitmap frame before the webview content is rendered.

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Repro: zetaloop/tauri-noredirectionbitmap-repro

Before fix:

After fix:

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(Amended the commit to fix outdated schema)

[Copilot]

Pull request overview

Exposes Tao's existing Windows with_no_redirection_bitmap option through Tauri's window builders and window config. This allows transparent windows to avoid the initial white redirection bitmap flash before the webview content is rendered.

Changes:

• Add no_redirection_bitmap builder method on the runtime WindowBuilder trait and its wry/mock implementations, plus public WindowBuilder/WebviewWindowBuilder wrappers.
• Add noRedirectionBitmap field to WindowConfig (with kebab-case alias) and propagate it from config to the wry builder; update both JSON schemas.
• Add .changes/ entries describing the new feature for tauri, tauri-runtime, tauri-runtime-wry, and tauri-utils.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
crates/tauri-runtime/src/window.rs	Adds no_redirection_bitmap to the WindowBuilder trait.
crates/tauri-runtime-wry/src/lib.rs	Implements the new builder method (windows/non-windows) and applies the config value.
crates/tauri/src/window/mod.rs	Public WindowBuilder::no_redirection_bitmap wrapper.
crates/tauri/src/webview/webview_window.rs	Public WebviewWindowBuilder::no_redirection_bitmap wrapper.
crates/tauri/src/test/mock_runtime.rs	No-op implementation for the mock runtime.
crates/tauri-utils/src/config.rs	Adds no_redirection_bitmap field, default, and build-time codegen.
crates/tauri-schema-generator/schemas/config.schema.json	Schema entry for noRedirectionBitmap.
crates/tauri-cli/config.schema.json	Mirrored CLI schema entry.
.changes/no-redirection-bitmap.md	Changelog for builder API addition.
.changes/no-redirection-bitmap-config.md	Changelog for config option addition.

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[github-actions]

Package Changes Through e33a3ca

There are 6 changes which include @tauri-apps/api with minor, tauri with minor, tauri-utils with minor, tauri-runtime with minor, tauri-runtime-wry with minor, tauri-bundler with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
@tauri-apps/api	2.11.0	2.12.0
tauri-utils	2.9.2	2.10.0
tauri-bundler	2.9.2	2.9.3
tauri-runtime	2.11.2	2.12.0
tauri-runtime-wry	2.11.2	2.12.0
tauri-codegen	2.6.2	2.6.3
tauri-macros	2.6.2	2.6.3
tauri-plugin	2.6.2	2.6.3
tauri-build	2.6.2	2.6.3
tauri	2.11.2	2.12.0
@tauri-apps/cli	2.11.2	2.11.3
tauri-cli	2.11.2	2.11.3

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[Legend-Master]

We will also want this to be typed in the window.ts

[Legend-Master]

Thanks! I will merge this after we finish releasing patch versions and go on to 2.12 milestone.

Also, does it make sense that we also mention this in transparent's docs?

[zetaloop]

Yes, I've added a note to transparent so this is easier to discover on Windows.