Start implementing copypasta, a clipboard library

Currently it only supports x11 via the xclip program, and that only
supports reading the clipboard contents.

10 files changed, 387 insertions, 87 deletions

diff --git a/Cargo.lock b/Cargo.lock
index cbb12fb6..6d5b0c08 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = "0.1.0"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cgmath 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "clipboard 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "copypasta 0.0.1",
  "errno 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "font 0.1.0",
  "gl_generator 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -50,11 +50,6 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "block"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "byteorder"
 version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -89,29 +84,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "clipboard"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "clipboard-win 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "objc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "objc-foundation 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "objc_id 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "x11 2.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "clipboard-win"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "windows-error 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "cmake"
 version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -131,6 +103,10 @@ dependencies = [
 ]
 
 [[package]]
+name = "copypasta"
+version = "0.0.1"
+
+[[package]]
 name = "core-foundation"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -626,24 +602,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "objc-foundation"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "block 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "objc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "objc_id 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "objc_id"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "objc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "osmesa-sys"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -869,15 +827,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "user32-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "utf8parse"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -967,15 +916,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "windows-error"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "ws2_32-sys"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -985,15 +925,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "x11"
-version = "2.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "x11-dl"
 version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1023,14 +954,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum bitflags 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8dead7461c1127cf637931a1e50934eb6eee8bff2f74433ac7909e9afcee04a3"
 "checksum bitflags 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "72cd7314bd4ee024071241147222c706e80385a1605ac7d4cd2fcc339da2ae46"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
-"checksum block 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
 "checksum byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0fc10e8cc6b2580fda3f36eb6dc5316657f812a3df879a44a66fc9f0fdbc4855"
 "checksum bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c129aff112dcc562970abb69e2508b40850dd24c274761bb50fb8a0067ba6c27"
 "checksum cfg-if 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de1e760d7b6535af4241fca8bd8adf68e2e7edacc6b29f5d399050c5e48cf88c"
 "checksum cgl 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8bdd78cca65a739cb5475dbf6b6bbb49373e327f4a6f2b499c0f98632df38c10"
 "checksum cgmath 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "75e93b3eb66e74ffb946a69ff54c6026c1399960241c843f249ea0127b96b9f6"
-"checksum clipboard 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "811169a9ffda99ed1841a6db3c48cffbab9a9101376f77fee3c14a7581ab933d"
-"checksum clipboard-win 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "238830bd83336a8620cbc1d6edf6b9222f45a2c52d02c164348fb6b466277b21"
 "checksum cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "dfcf5bcece56ef953b8ea042509e9dcbdfe97820b7e20d86beb53df30ed94978"
 "checksum cocoa 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3afe4613f57a171039a98db1773f5840b5743cf85aaf03afb65ddfade4f4a9db"
 "checksum core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "20a6d0448d3a99d977ae4a2aa5a98d886a923e863e81ad9ff814645b6feb3bbd"
@@ -1084,8 +1012,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum num-rational 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "54ff603b8334a72fbb27fe66948aac0abaaa40231b3cecd189e76162f6f38aaf"
 "checksum num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "8359ea48994f253fa958b5b90b013728b06f54872e5a58bce39540fcdd0f2527"
 "checksum objc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7c9311aa5acd7bee14476afa0f0557f564e9d0d61218a8b833d9b1f871fa5fba"
-"checksum objc-foundation 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
-"checksum objc_id 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e4730aa1c64d722db45f7ccc4113a3e2c465d018de6db4d3e7dfe031e8c8a297"
 "checksum osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "88cfece6e95d2e717e0872a7f53a8684712ad13822a7979bc760b9c77ec0013b"
 "checksum parking_lot 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aa2a676a66f54ed4c84f55261814eb357e530eb2b703cd21466beee4bcf30238"
 "checksum parking_lot_core 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "06f24c980718110494e9cfb7db7438895c3f54505101bb6170329d5e43a53f64"
@@ -1115,7 +1041,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum tempfile 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9270837a93bad1b1dac18fe67e786b3c960513af86231f6f4f57fddd594ff0c8"
 "checksum time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "3c7ec6d62a20df54e07ab3b78b9a3932972f4b7981de295563686849eb3989af"
 "checksum user32-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6717129de5ac253f5642fc78a51d0c7de6f9f53d617fc94e9bae7f6e71cf5504"
-"checksum user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ef4711d107b21b410a3a974b1204d9accc8b10dad75d8324b5d755de1617d47"
 "checksum utf8parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a15ea87f3194a3a454c78d79082b4f5e85f6956ddb6cb86bbfbe4892aa3c0323"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum vte 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "182acba7edb46d25ab5ddfc9f390b8c6cc1dcec7a4efc2798f0a8918f07d8c8a"
@@ -1127,9 +1052,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum wayland-window 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "309b69d3a863c9c21422d889fb7d98cf02f8a2ca054960a49243ce5b67ad884c"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-"checksum windows-error 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "dfa34b3180ad6b4fe63cbc4fb773da4a83c5b3db8db15789051a4785f2b43e58"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
-"checksum x11 2.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bfc828b6baf54ccdde44e0b5f16e035ab9c54f60a0f0c218fb5ddbc6ab38a2a9"
 "checksum x11-dl 2.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6acc29bdc98d7565e18dc71b3e933aa94a195d0c2f4ec84f675679d9744b0d6b"
 "checksum xml-rs 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "65e74b96bd3179209dc70a980da6df843dff09e46eee103a0376c0949257e3ef"
 "checksum yaml-rust 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ebfe12f475ad59be6178ebf004d51e682022496535994f8d23fd7ed31084598c"
diff --git a/Cargo.toml b/Cargo.toml
index 1149f48d..c8fab55b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ serde_yaml = "0.4"
 serde_macros = "0.8"
 vte = "0.1.2"
 mio = "0.6"
-clipboard = "0.1.2"
+copypasta = { path = "./copypasta" }
 
 [build-dependencies]
 gl_generator = "0.5"
diff --git a/copypasta/Cargo.lock b/copypasta/Cargo.lock
new file mode 100644
index 00000000..53d49794
--- /dev/null
+++ b/copypasta/Cargo.lock
@@ -0,0 +1,4 @@
+[root]
+name = "copypasta"
+version = "0.0.1"
+
diff --git a/copypasta/Cargo.toml b/copypasta/Cargo.toml
new file mode 100644
index 00000000..1f07645a
--- /dev/null
+++ b/copypasta/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "copypasta"
+version = "0.0.1"
+authors = ["Joe Wilm <joe@jwilm.com>"]
+license = "Apache-2.0"
+description = "Forthcoming clipboard library"
+keywords = ["clipboard", "copy", "paste"]
+
+[dependencies]
diff --git a/copypasta/LICENSE-APACHE b/copypasta/LICENSE-APACHE
new file mode 100644
index 00000000..d79db12e
--- /dev/null
+++ b/copypasta/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+END OF TERMS AND CONDITIONS
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+APPENDIX: How to apply the Apache License to your work.
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+Copyright 2016 Joe Wilm, The Alacritty Project Contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/copypasta/src/lib.rs b/copypasta/src/lib.rs
new file mode 100644
index 00000000..722142aa
--- /dev/null
+++ b/copypasta/src/lib.rs
@@ -0,0 +1,46 @@
+//! A cross-platform clipboard library
+
+/// Types that can get the system clipboard contents
+pub trait Load : Sized {
+    /// Errors encountered when working with a clipboard. Each implementation is
+    /// allowed to define its own error type, but it must conform to std error.
+    type Err: ::std::error::Error + Send + Sync + 'static;
+
+    /// Create a clipboard
+    fn new() -> Result<Self, Self::Err>;
+
+    /// Get the primary clipboard contents.
+    fn load_primary(&self) -> Result<String, Self::Err>;
+
+    /// Get the clipboard selection contents.
+    ///
+    /// On most platforms, this doesn't mean anything. A default implementation
+    /// is provided which uses the primary clipboard.
+    #[inline]
+    fn load_selection(&self) -> Result<String, Self::Err> {
+        self.load_primary()
+    }
+}
+
+/// Types that can set the system clipboard contents
+///
+/// Note that some platforms require the clipboard context to stay active in
+/// order to load the contents from other applications.
+pub trait Store : Load {
+    /// Sets the primary clipboard contents
+    fn store_primary(&mut self, contents: String) -> Result<(), Self::Err>;
+
+    /// Sets the secondary clipboard contents
+    fn store_selection(&mut self, contents: String) -> Result<(), Self::Err>;
+}
+
+#[cfg(target_os = "linux")]
+mod x11;
+#[cfg(target_os = "linux")]
+pub use x11::{Clipboard, Error};
+
+#[cfg(target_os = "macos")]
+mod macos;
+#[cfg(target_os = "macos")]
+pub use macos::{Clipboard, Error};
+
diff --git a/copypasta/src/macos.rs b/copypasta/src/macos.rs
new file mode 100644
index 00000000..5ef7630e
--- /dev/null
+++ b/copypasta/src/macos.rs
@@ -0,0 +1,19 @@
+//! Clipboard access on macOS
+//!
+//! Implemented according to https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/PasteboardGuide106/Articles/pbReading.html#//apple_ref/doc/uid/TP40008123-SW1
+//!
+//! FIXME implement this :)
+
+struct Clipboard;
+
+impl Load for Clipboard {
+    type Err = ();
+
+    fn new() -> Result<Self, Error> {
+        Ok(Clipboard)
+    }
+
+    fn load_primary(&self) -> Result<String, Self::Err> {
+        Ok(String::new())
+    }
+}
diff --git a/copypasta/src/x11.rs b/copypasta/src/x11.rs
new file mode 100644
index 00000000..45fa4825
--- /dev/null
+++ b/copypasta/src/x11.rs
@@ -0,0 +1,98 @@
+//! X11 Clipboard implementation
+//!
+//! Note that the x11 implementation is really crap right now - we just depend
+//! on xclip being on the user's path. If x11 pasting doesn't work, it's
+//! probably because xclip is unavailable. There's currently no non-GPL x11
+//! clipboard library for Rust. Until then, we have this hack.
+//!
+//! FIXME: Implement actual X11 clipboard API using the ICCCM reference
+//!        https://tronche.com/gui/x/icccm/
+use std::io;
+use std::process::{Output, Command};
+use std::string::FromUtf8Error;
+
+use super::Load;
+
+/// The x11 clipboard
+pub struct Clipboard;
+
+#[derive(Debug)]
+pub enum Error {
+    Io(io::Error),
+    Xclip(String),
+    Utf8(FromUtf8Error),
+}
+
+impl ::std::error::Error for Error {
+    fn cause(&self) -> Option<&::std::error::Error> {
+        match *self {
+            Error::Io(ref err) => Some(err),
+            Error::Utf8(ref err) => Some(err),
+            _ => None,
+        }
+    }
+
+    fn description(&self) -> &str {
+        match *self {
+            Error::Io(..) => "error calling xclip",
+            Error::Xclip(..) => "error reported by xclip",
+            Error::Utf8(..) => "clipboard contents not utf8",
+        }
+    }
+}
+
+impl ::std::fmt::Display for Error {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        match *self {
+            Error::Io(ref err) => write!(f, "error calling xclip: {}", err),
+            Error::Xclip(ref s) => write!(f, "error from xclip: {}", s),
+            Error::Utf8(ref err) => write!(f, "error parsing xclip output: {}", err),
+        }
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(val: io::Error) -> Error {
+        Error::Io(val)
+    }
+}
+
+impl From<FromUtf8Error> for Error {
+    fn from(val: FromUtf8Error) -> Error {
+        Error::Utf8(val)
+    }
+}
+
+impl Load for Clipboard {
+    type Err = Error;
+
+    fn new() -> Result<Self, Error> {
+        Ok(Clipboard)
+    }
+
+    fn load_primary(&self) -> Result<String, Self::Err> {
+        let output = try!(Command::new("xclip")
+            .args(&["-o", "-selection", "clipboard"])
+            .output());
+
+        Clipboard::process_xclip_output(output)
+    }
+
+    fn load_selection(&self) -> Result<String, Self::Err> {
+        let output = try!(Command::new("xclip")
+            .args(&["-o"])
+            .output());
+
+        Clipboard::process_xclip_output(output)
+    }
+}
+
+impl Clipboard {
+    fn process_xclip_output(output: Output) -> Result<String, Error> {
+        if output.status.success() {
+            Ok(try!(String::from_utf8(output.stdout)))
+        } else {
+            Ok(try!(String::from_utf8(output.stderr)))
+        }
+    }
+}
diff --git a/src/input.rs b/src/input.rs
index d0cbc600..f1022814 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -25,7 +25,7 @@
 //! TODO handling xmodmap would be good
 use std::borrow::Cow;
 
-use clipboard::ClipboardContext;
+use copypasta::{Clipboard, Load};
 use glutin::{ElementState, VirtualKeyCode, MouseButton};
 use glutin::{Mods, mods};
 
@@ -349,8 +349,8 @@ impl Processor {
                             Action::Esc(s) => notifier.notify(s.as_bytes()),
                             Action::Paste => {
                                 println!("paste request");
-                                let clip = ClipboardContext::new().expect("get clipboard");
-                                clip.get_contents()
+                                let clip = Clipboard::new().expect("get clipboard");
+                                clip.load_selection()
                                     .map(|contents| {
                                         println!("got contents");
                                         notifier.notify(contents.into_bytes())
diff --git a/src/main.rs b/src/main.rs
index 3316c70c..acf47302 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -24,7 +24,7 @@
 #![feature(core_intrinsics)]
 
 extern crate cgmath;
-extern crate clipboard;
+extern crate copypasta;
 extern crate errno;
 extern crate font;
 extern crate glutin;