diff --git a/Cargo.lock b/Cargo.lock
index 0a70412a..48aa0ce2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -99,6 +99,89 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d92bec98840b8f03a5ff5413de5293bfcd8bf96467cf5452609f939ec6f5de16"
+[[package]]
+name = "async-broadcast"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b19760fa2b7301cf235360ffd6d3558b1ed4249edd16d6cca8d690cee265b95"
+dependencies = [
+ "event-listener",
+ "futures-core",
+ "parking_lot 0.12.1",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17adb73da160dfb475c183343c8cccd80721ea5a605d3eb57125f0a7b7a92d0b"
+dependencies = [
+ "async-lock",
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "slab",
+]
+
+[[package]]
+name = "async-io"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c374dda1ed3e7d8f0d9ba58715f924862c63eae6849c92d3a18e7fbde9e2794"
+dependencies = [
+ "async-lock",
+ "autocfg",
+ "concurrent-queue",
+ "futures-lite",
+ "libc",
+ "log",
+ "parking",
+ "polling",
+ "slab",
+ "socket2",
+ "waker-fn",
+ "windows-sys 0.42.0",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8101efe8695a6c17e02911402145357e718ac92d3ff88ae8419e84b1707b685"
+dependencies = [
+ "event-listener",
+ "futures-lite",
+]
+
+[[package]]
+name = "async-recursion"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2cda8f4bcc10624c4e85bc66b3f452cca98cfa5ca002dc83a16aad2367641bea"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "async-task"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a40729d2133846d9ed0ea60a8b9541bccddab49cd30f0715a1da672fe9a2524"
+
+[[package]]
+name = "async-trait"
+version = "0.1.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d1d8ab452a3936018a687b20e6f7cf5363d713b732b8884001317b0e48aa3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
[[package]]
name = "atk"
version = "0.15.1"
@@ -511,6 +594,15 @@ dependencies = [
"memchr",
]
+[[package]]
+name = "concurrent-queue"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd7bef69dc86e3c610e4e7aed41035e2a7ed12e72dd7530f61327a6579a4390b"
+dependencies = [
+ "crossbeam-utils",
+]
+
[[package]]
name = "const-oid"
version = "0.7.1"
@@ -820,6 +912,17 @@ dependencies = [
"pem-rfc7468",
]
+[[package]]
+name = "derivative"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
[[package]]
name = "derive_more"
version = "0.99.17"
@@ -972,6 +1075,27 @@ dependencies = [
"cfg-if 1.0.0",
]
+[[package]]
+name = "enumflags2"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e75d4cd21b95383444831539909fbb14b9dc3fdceb2a6f5d36577329a1f55ccb"
+dependencies = [
+ "enumflags2_derive",
+ "serde",
+]
+
+[[package]]
+name = "enumflags2_derive"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f58dc3c5e468259f19f2d46304a6b28f1c3d034442e14b322d2b850e36f6d5ae"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
[[package]]
name = "event-listener"
version = "2.5.3"
@@ -1174,6 +1298,21 @@ version = "0.3.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "00f5fb52a06bdcadeb54e8d3671f8888a39697dcb0b81b23b55174030427f4eb"
+[[package]]
+name = "futures-lite"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
+
[[package]]
name = "futures-macro"
version = "0.3.25"
@@ -2365,6 +2504,20 @@ version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e4a24736216ec316047a1fc4252e27dabb04218aa4a3f37c6e7ddbf1f9782b54"
+[[package]]
+name = "nix"
+version = "0.25.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f346ff70e7dbfd675fe90590b92d59ef2de15a8779ae305ebcbfd3f0caf59be4"
+dependencies = [
+ "autocfg",
+ "bitflags",
+ "cfg-if 1.0.0",
+ "libc",
+ "memoffset",
+ "pin-utils",
+]
+
[[package]]
name = "nodrop"
version = "0.1.14"
@@ -2595,6 +2748,16 @@ dependencies = [
"vcpkg",
]
+[[package]]
+name = "ordered-stream"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4eb9ba3f3e42dbdd3b7b122de5ca169c81e93d561eb900da3a8c99bcfcf381a"
+dependencies = [
+ "futures-core",
+ "pin-project-lite",
+]
+
[[package]]
name = "overload"
version = "0.1.1"
@@ -2626,6 +2789,12 @@ dependencies = [
"system-deps 6.0.3",
]
+[[package]]
+name = "parking"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
+
[[package]]
name = "parking_lot"
version = "0.11.2"
@@ -2898,6 +3067,20 @@ dependencies = [
"miniz_oxide",
]
+[[package]]
+name = "polling"
+version = "2.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22122d5ec4f9fe1b3916419b76be1e80bcb93f618d071d2edf841b137b2a2bd6"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "libc",
+ "log",
+ "wepoll-ffi",
+ "windows-sys 0.42.0",
+]
+
[[package]]
name = "poly1305"
version = "0.7.2"
@@ -3793,6 +3976,12 @@ dependencies = [
"loom",
]
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
[[package]]
name = "string_cache"
version = "0.8.4"
@@ -4205,6 +4394,19 @@ dependencies = [
"thiserror",
]
+[[package]]
+name = "tauri-plugin-single-instance"
+version = "0.1.0"
+dependencies = [
+ "log",
+ "serde",
+ "serde_json",
+ "tauri",
+ "thiserror",
+ "windows-sys 0.42.0",
+ "zbus",
+]
+
[[package]]
name = "tauri-plugin-sql"
version = "0.1.0"
@@ -4711,6 +4913,16 @@ version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e79c4d996edb816c91e4308506774452e55e95c3c9de07b6729e17e15a5ef81"
+[[package]]
+name = "uds_windows"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce65604324d3cce9b966701489fbd0cf318cb1f7bd9dd07ac9a4ee6fb791930d"
+dependencies = [
+ "tempfile",
+ "winapi 0.3.9",
+]
+
[[package]]
name = "unicode-bidi"
version = "0.3.8"
@@ -4860,6 +5072,12 @@ dependencies = [
"libc",
]
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
[[package]]
name = "walkdir"
version = "2.3.2"
@@ -5079,6 +5297,15 @@ dependencies = [
"windows-metadata",
]
+[[package]]
+name = "wepoll-ffi"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
+dependencies = [
+ "cc",
+]
+
[[package]]
name = "whoami"
version = "1.2.3"
@@ -5413,6 +5640,68 @@ version = "0.8.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
+[[package]]
+name = "zbus"
+version = "3.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "379d587c0ccb632d1179cf44082653f682842f0535f0fdfaefffc34849cc855e"
+dependencies = [
+ "async-broadcast",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "async-recursion",
+ "async-task",
+ "async-trait",
+ "byteorder",
+ "derivative",
+ "dirs",
+ "enumflags2",
+ "event-listener",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "hex",
+ "nix",
+ "once_cell",
+ "ordered-stream",
+ "rand 0.8.5",
+ "serde",
+ "serde_repr",
+ "sha1",
+ "static_assertions",
+ "tracing",
+ "uds_windows",
+ "winapi 0.3.9",
+ "zbus_macros",
+ "zbus_names",
+ "zvariant",
+]
+
+[[package]]
+name = "zbus_macros"
+version = "3.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66492a2e90c0df7190583eccb8424aa12eb7ff06edea415a4fff6688fae18cf8"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn",
+]
+
+[[package]]
+name = "zbus_names"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f34f314916bd89bdb9934154627fab152f4f28acdda03e7c4c68181b214fe7e3"
+dependencies = [
+ "serde",
+ "static_assertions",
+ "zvariant",
+]
+
[[package]]
name = "zeroize"
version = "1.5.7"
@@ -5433,3 +5722,29 @@ dependencies = [
"syn",
"synstructure",
]
+
+[[package]]
+name = "zvariant"
+version = "3.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "576cc41e65c7f283e5460f5818073e68fb1f1631502b969ef228c2e03c862efb"
+dependencies = [
+ "byteorder",
+ "enumflags2",
+ "libc",
+ "serde",
+ "static_assertions",
+ "zvariant_derive",
+]
+
+[[package]]
+name = "zvariant_derive"
+version = "3.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fd4aafc0dee96ae7242a24249ce9babf21e1562822f03df650d4e68c20e41ed"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/plugins/single-instance/Cargo.toml b/plugins/single-instance/Cargo.toml
new file mode 100644
index 00000000..b6fc1cbe
--- /dev/null
+++ b/plugins/single-instance/Cargo.toml
@@ -0,0 +1,32 @@
+[package]
+name = "tauri-plugin-single-instance"
+version = "0.1.0"
+description = "Ensure a single instance of your tauri app is running."
+authors.workspace = true
+license.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde.workspace = true
+serde_json.workspace = true
+tauri.workspace = true
+log.workspace = true
+thiserror.workspace = true
+
+[target.'cfg(target_os = "windows")'.dependencies.windows-sys]
+version = "0.42"
+features = [
+ "Win32_System_Threading",
+ "Win32_System_DataExchange",
+ "Win32_Foundation",
+ "Win32_UI_WindowsAndMessaging",
+ "Win32_Security",
+ "Win32_System_LibraryLoader",
+ "Win32_Graphics_Gdi",
+]
+
+[target.'cfg(target_os = "linux")'.dependencies]
+zbus = "3.7"
\ No newline at end of file
diff --git a/plugins/single-instance/LICENSE.spdx b/plugins/single-instance/LICENSE.spdx
new file mode 100644
index 00000000..cdd0df5a
--- /dev/null
+++ b/plugins/single-instance/LICENSE.spdx
@@ -0,0 +1,20 @@
+SPDXVersion: SPDX-2.1
+DataLicense: CC0-1.0
+PackageName: tauri
+DataFormat: SPDXRef-1
+PackageSupplier: Organization: The Tauri Programme in the Commons Conservancy
+PackageHomePage: https://tauri.app
+PackageLicenseDeclared: Apache-2.0
+PackageLicenseDeclared: MIT
+PackageCopyrightText: 2019-2022, The Tauri Programme in the Commons Conservancy
+PackageSummary: Tauri is a rust project that enables developers to make secure
+and small desktop applications using a web frontend.
+
+PackageComment: The package includes the following libraries; see
+Relationship information.
+
+Created: 2019-05-20T09:00:00Z
+PackageDownloadLocation: git://github.com/tauri-apps/tauri
+PackageDownloadLocation: git+https://github.com/tauri-apps/tauri.git
+PackageDownloadLocation: git+ssh://github.com/tauri-apps/tauri.git
+Creator: Person: Daniel Thompson-Yvetot
\ No newline at end of file
diff --git a/plugins/single-instance/LICENSE_APACHE-2.0 b/plugins/single-instance/LICENSE_APACHE-2.0
new file mode 100644
index 00000000..4947287f
--- /dev/null
+++ b/plugins/single-instance/LICENSE_APACHE-2.0
@@ -0,0 +1,177 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
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+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
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+ 3. Grant of Patent License. Subject to the terms and conditions of
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+ 4. Redistribution. You may reproduce and distribute copies of the
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+ (c) You must retain, in the Source form of any Derivative Works
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+ (d) If the Work includes a "NOTICE" text file as part of its
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+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
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+ 9. Accepting Warranty or Additional Liability. While redistributing
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+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
\ No newline at end of file
diff --git a/plugins/single-instance/LICENSE_MIT b/plugins/single-instance/LICENSE_MIT
new file mode 100644
index 00000000..4d754725
--- /dev/null
+++ b/plugins/single-instance/LICENSE_MIT
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 - Present Tauri Apps Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/plugins/single-instance/README.md b/plugins/single-instance/README.md
new file mode 100644
index 00000000..5823ab98
--- /dev/null
+++ b/plugins/single-instance/README.md
@@ -0,0 +1,61 @@
+
+
+
+
+## Install
+
+There are three general methods of installation that we can recommend.
+
+1. Use crates.io and npm (easiest, and requires you to trust that our publishing pipeline worked)
+2. Pull sources directly from Github using git tags / revision hashes (most secure)
+3. Git submodule install this repo in your tauri project and then use file protocol to ingest the source (most secure, but inconvenient to use)
+
+Install the Core plugin by adding the following to your `Cargo.toml` file:
+
+`src-tauri/Cargo.toml`
+```toml
+[dependencies]
+ = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "dev" }
+```
+
+You can install the JavaScript Guest bindings using your preferred JavaScript package manager:
+
+> Note: Since most JavaScript package managers are unable to install packages from git monorepos we provide read-only mirrors of each plugin. This makes installation option 2 more ergonomic to use.
+
+```sh
+pnpm add
+# or
+npm add
+# or
+yarn add
+```
+
+## Usage
+
+First you need to register the core plugin with Tauri:
+
+`src-tauri/src/main.rs`
+```rust
+fn main() {
+ tauri::Builder::default()
+ .plugin()
+ .run(tauri::generate_context!())
+ .expect("error while running tauri application");
+}
+```
+
+Afterwards all the plugin's APIs are available through the JavaScript guest bindings:
+
+```javascript
+
+```
+
+## Contributing
+
+PRs accepted. Please make sure to read the Contributing Guide before making a pull request.
+
+## License
+
+Code: (c) 2015 - Present - The Tauri Programme within The Commons Conservancy.
+
+MIT or MIT/Apache 2.0 where applicable.
diff --git a/plugins/single-instance/src/lib.rs b/plugins/single-instance/src/lib.rs
new file mode 100644
index 00000000..a2ff71af
--- /dev/null
+++ b/plugins/single-instance/src/lib.rs
@@ -0,0 +1,24 @@
+use tauri::{plugin::TauriPlugin, AppHandle, Manager, Runtime};
+
+#[cfg(target_os = "windows")]
+#[path = "platform_impl/windows.rs"]
+mod platform_impl;
+#[cfg(target_os = "linux")]
+#[path = "platform_impl/linux.rs"]
+mod platform_impl;
+#[cfg(target_os = "macos")]
+#[path = "platform_impl/macos.rs"]
+mod platform_impl;
+
+pub(crate) type SingleInstanceCallback =
+ dyn FnMut(&AppHandle, Vec, String) + Send + Sync + 'static;
+
+pub fn init, Vec, String) + Send + Sync + 'static>(
+ f: F,
+) -> TauriPlugin {
+ platform_impl::init(Box::new(f))
+}
+
+pub fn destroy>(manager: &M) {
+ platform_impl::destroy(manager)
+}
diff --git a/plugins/single-instance/src/platform_impl/linux.rs b/plugins/single-instance/src/platform_impl/linux.rs
new file mode 100644
index 00000000..b175d727
--- /dev/null
+++ b/plugins/single-instance/src/platform_impl/linux.rs
@@ -0,0 +1,96 @@
+#![cfg(target_os = "linux")]
+
+use std::sync::Arc;
+
+use crate::SingleInstanceCallback;
+use tauri::{
+ plugin::{self, TauriPlugin},
+ AppHandle, Config, Manager, RunEvent, Runtime,
+};
+use zbus::{
+ blocking::{Connection, ConnectionBuilder},
+ dbus_interface,
+};
+
+struct ConnectionHandle(Connection);
+
+struct SingleInstanceDBus {
+ callback: Box>,
+ app_handle: AppHandle,
+}
+
+#[dbus_interface(name = "org.SingleInstance.DBus")]
+impl SingleInstanceDBus {
+ fn execute_callback(&mut self, argv: Vec, cwd: String) {
+ (self.callback)(&self.app_handle, argv, cwd);
+ }
+}
+
+fn dbus_id(config: Arc) -> String {
+ config
+ .tauri
+ .bundle
+ .identifier
+ .replace('.', "_")
+ .replace('-', "_")
+}
+
+pub fn init(f: Box>) -> TauriPlugin {
+ plugin::Builder::new("single-instance")
+ .setup(|app| {
+ let id = dbus_id(app.config());
+ let single_instance_dbus = SingleInstanceDBus {
+ callback: f,
+ app_handle: app.clone(),
+ };
+ let dbus_name = format!("org.{}.SingleInstance", id);
+ let dbus_path = format!("/org/{}/SingleInstance", id);
+
+ match ConnectionBuilder::session()
+ .unwrap()
+ .name(dbus_name.as_str())
+ .unwrap()
+ .serve_at(dbus_path.as_str(), single_instance_dbus)
+ .unwrap()
+ .build()
+ {
+ Ok(connection) => {
+ app.manage(ConnectionHandle(connection));
+ }
+ Err(zbus::Error::NameTaken) => {
+ if let Ok(connection) = Connection::session() {
+ let _ = connection.call_method(
+ Some(dbus_name.as_str()),
+ dbus_path.as_str(),
+ Some("org.SingleInstance.DBus"),
+ "ExecuteCallback",
+ &(
+ std::env::args().collect::>(),
+ std::env::current_dir()
+ .unwrap_or_default()
+ .to_str()
+ .unwrap_or_default(),
+ ),
+ );
+ }
+ std::process::exit(0)
+ }
+ _ => {}
+ }
+
+ Ok(())
+ })
+ .on_event(|app, event| {
+ if let RunEvent::Exit = event {
+ destroy(app);
+ }
+ })
+ .build()
+}
+
+pub fn destroy>(manager: &M) {
+ if let Some(connection) = manager.try_state::() {
+ let dbus_name = format!("org.{}.SingleInstance", dbus_id(manager.config()));
+ let _ = connection.0.release_name(dbus_name);
+ }
+}
diff --git a/plugins/single-instance/src/platform_impl/macos.rs b/plugins/single-instance/src/platform_impl/macos.rs
new file mode 100644
index 00000000..1b408c66
--- /dev/null
+++ b/plugins/single-instance/src/platform_impl/macos.rs
@@ -0,0 +1,12 @@
+#![cfg(target_os = "macos")]
+
+use crate::SingleInstanceCallback;
+use tauri::{
+ plugin::{self, TauriPlugin},
+ Manager, Runtime,
+};
+pub fn init(_f: Box>) -> TauriPlugin {
+ plugin::Builder::new("single-instance").build()
+}
+
+pub fn destroy>(_manager: &M) {}
diff --git a/plugins/single-instance/src/platform_impl/windows.rs b/plugins/single-instance/src/platform_impl/windows.rs
new file mode 100644
index 00000000..a4eadab4
--- /dev/null
+++ b/plugins/single-instance/src/platform_impl/windows.rs
@@ -0,0 +1,215 @@
+#![cfg(target_os = "windows")]
+
+use crate::SingleInstanceCallback;
+use std::ffi::CStr;
+use tauri::{
+ plugin::{self, TauriPlugin},
+ AppHandle, Manager, RunEvent, Runtime,
+};
+use windows_sys::Win32::{
+ Foundation::{CloseHandle, GetLastError, ERROR_ALREADY_EXISTS, HWND, LPARAM, LRESULT, WPARAM},
+ System::{
+ DataExchange::COPYDATASTRUCT,
+ LibraryLoader::GetModuleHandleW,
+ Threading::{CreateMutexW, ReleaseMutex},
+ },
+ UI::WindowsAndMessaging::{
+ self as w32wm, CreateWindowExW, DefWindowProcW, DestroyWindow, FindWindowW,
+ RegisterClassExW, SendMessageW, GWL_STYLE, GWL_USERDATA, WINDOW_LONG_PTR_INDEX,
+ WM_COPYDATA, WM_DESTROY, WNDCLASSEXW, WS_EX_LAYERED, WS_EX_NOACTIVATE, WS_EX_TOOLWINDOW,
+ WS_EX_TRANSPARENT, WS_OVERLAPPED, WS_POPUP, WS_VISIBLE,
+ },
+};
+
+struct MutexHandle(isize);
+struct TargetWindowHandle(isize);
+
+const WMCOPYDATA_SINGLE_INSTANCE_DATA: usize = 1542;
+
+pub fn init(f: Box>) -> TauriPlugin {
+ plugin::Builder::new("single-instance")
+ .setup(|app| {
+ let id = &app.config().tauri.bundle.identifier;
+
+ let class_name = encode_wide(format!("{}-sic", id));
+ let window_name = encode_wide(format!("{}-siw", id));
+ let mutex_name = encode_wide(format!("{}-sim", id));
+
+ let hmutex =
+ unsafe { CreateMutexW(std::ptr::null(), true.into(), mutex_name.as_ptr()) };
+
+ if unsafe { GetLastError() } == ERROR_ALREADY_EXISTS {
+ unsafe {
+ let hwnd = FindWindowW(class_name.as_ptr(), window_name.as_ptr());
+
+ if hwnd != 0 {
+ let data = format!(
+ "{}|{}\0",
+ std::env::current_dir()
+ .unwrap_or_default()
+ .to_str()
+ .unwrap_or_default(),
+ std::env::args().collect::>().join("|")
+ );
+ let bytes = data.as_bytes();
+ let cds = COPYDATASTRUCT {
+ dwData: WMCOPYDATA_SINGLE_INSTANCE_DATA,
+ cbData: bytes.len() as _,
+ lpData: bytes.as_ptr() as _,
+ };
+ SendMessageW(hwnd, WM_COPYDATA, 0, &cds as *const _ as _);
+ app.exit(0);
+ }
+ }
+ } else {
+ app.manage(MutexHandle(hmutex));
+
+ let hwnd = create_event_target_window::(&class_name, &window_name);
+ unsafe {
+ SetWindowLongPtrW(
+ hwnd,
+ GWL_USERDATA,
+ Box::into_raw(Box::new((app.clone(), f))) as _,
+ )
+ };
+
+ app.manage(TargetWindowHandle(hwnd));
+ }
+
+ Ok(())
+ })
+ .on_event(|app, event| {
+ if let RunEvent::Exit = event {
+ destroy(app);
+ }
+ })
+ .build()
+}
+
+pub fn destroy>(manager: &M) {
+ if let Some(hmutex) = manager.try_state::() {
+ unsafe {
+ ReleaseMutex(hmutex.0);
+ CloseHandle(hmutex.0);
+ }
+ }
+ if let Some(hwnd) = manager.try_state::() {
+ unsafe { DestroyWindow(hwnd.0) };
+ }
+}
+
+unsafe extern "system" fn single_instance_window_proc(
+ hwnd: HWND,
+ msg: u32,
+ wparam: WPARAM,
+ lparam: LPARAM,
+) -> LRESULT {
+ let data_ptr = GetWindowLongPtrW(hwnd, GWL_USERDATA)
+ as *mut (AppHandle, Box>);
+ let (app_handle, callback) = &mut *data_ptr;
+
+ match msg {
+ WM_COPYDATA => {
+ let cds_ptr = lparam as *const COPYDATASTRUCT;
+ if (*cds_ptr).dwData == WMCOPYDATA_SINGLE_INSTANCE_DATA {
+ let data = CStr::from_ptr((*cds_ptr).lpData as _).to_string_lossy();
+ let mut s = data.split("|");
+ let cwd = s.next().unwrap();
+ let args = s.into_iter().map(|s| s.to_string()).collect();
+ callback(&app_handle, args, cwd.to_string());
+ }
+ 1
+ }
+
+ WM_DESTROY => {
+ let _ = Box::from_raw(data_ptr);
+ 0
+ }
+ _ => DefWindowProcW(hwnd, msg, wparam, lparam),
+ }
+}
+
+fn create_event_target_window(class_name: &[u16], window_name: &[u16]) -> HWND {
+ unsafe {
+ let class = WNDCLASSEXW {
+ cbSize: std::mem::size_of::() as u32,
+ style: 0,
+ lpfnWndProc: Some(single_instance_window_proc::),
+ cbClsExtra: 0,
+ cbWndExtra: 0,
+ hInstance: GetModuleHandleW(std::ptr::null()),
+ hIcon: 0,
+ hCursor: 0,
+ hbrBackground: 0,
+ lpszMenuName: std::ptr::null(),
+ lpszClassName: class_name.as_ptr(),
+ hIconSm: 0,
+ };
+
+ RegisterClassExW(&class);
+
+ let hwnd = CreateWindowExW(
+ WS_EX_NOACTIVATE
+ | WS_EX_TRANSPARENT
+ | WS_EX_LAYERED
+ // WS_EX_TOOLWINDOW prevents this window from ever showing up in the taskbar, which
+ // we want to avoid. If you remove this style, this window won't show up in the
+ // taskbar *initially*, but it can show up at some later point. This can sometimes
+ // happen on its own after several hours have passed, although this has proven
+ // difficult to reproduce. Alternatively, it can be manually triggered by killing
+ // `explorer.exe` and then starting the process back up.
+ // It is unclear why the bug is triggered by waiting for several hours.
+ | WS_EX_TOOLWINDOW,
+ class_name.as_ptr(),
+ window_name.as_ptr(),
+ WS_OVERLAPPED,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ GetModuleHandleW(std::ptr::null()),
+ std::ptr::null(),
+ );
+ SetWindowLongPtrW(
+ hwnd,
+ GWL_STYLE,
+ // The window technically has to be visible to receive WM_PAINT messages (which are used
+ // for delivering events during resizes), but it isn't displayed to the user because of
+ // the LAYERED style.
+ (WS_VISIBLE | WS_POPUP) as isize,
+ );
+ hwnd
+ }
+}
+
+pub fn encode_wide(string: impl AsRef) -> Vec {
+ std::os::windows::prelude::OsStrExt::encode_wide(string.as_ref())
+ .chain(std::iter::once(0))
+ .collect()
+}
+
+#[cfg(target_pointer_width = "32")]
+#[allow(non_snake_case)]
+unsafe fn SetWindowLongPtrW(hwnd: HWND, index: WINDOW_LONG_PTR_INDEX, value: isize) -> isize {
+ w32wm::SetWindowLongW(hwnd, index, value as _) as _
+}
+
+#[cfg(target_pointer_width = "64")]
+#[allow(non_snake_case)]
+unsafe fn SetWindowLongPtrW(hwnd: HWND, index: WINDOW_LONG_PTR_INDEX, value: isize) -> isize {
+ w32wm::SetWindowLongPtrW(hwnd, index, value)
+}
+
+#[cfg(target_pointer_width = "32")]
+#[allow(non_snake_case)]
+unsafe fn GetWindowLongPtrW(hwnd: HWND, index: WINDOW_LONG_PTR_INDEX) -> isize {
+ w32wm::GetWindowLongW(hwnd, index) as _
+}
+
+#[cfg(target_pointer_width = "64")]
+#[allow(non_snake_case)]
+unsafe fn GetWindowLongPtrW(hwnd: HWND, index: WINDOW_LONG_PTR_INDEX) -> isize {
+ w32wm::GetWindowLongPtrW(hwnd, index)
+}