From f4d972adb2407275e30c97b175ab4885f18de546 Mon Sep 17 00:00:00 2001
From: Michal Mieczkowski <mieczkowski@fastmail.com>
Date: Thu, 13 Jun 2019 20:17:49 +0200
Subject: [PATCH] Forward to embedder message for setting/getting clipboard
 contents from clipboard provider. Create clipboard context in browser.rs and
 handle new messages.

---
 Cargo.lock                              |  1 +
 components/script/clipboard_provider.rs | 11 ++++++--
 ports/glutin/Cargo.toml                 |  1 +
 ports/glutin/browser.rs                 | 35 +++++++++++++++++++++++++
 ports/glutin/main2.rs                   |  1 +
 5 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 179e7109d5d8..bd223b40a860 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3935,6 +3935,7 @@ dependencies = [
  "backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clipboard 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-channel 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.19.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/components/script/clipboard_provider.rs b/components/script/clipboard_provider.rs
index 72afd5727d29..3d67d69bcefe 100644
--- a/components/script/clipboard_provider.rs
+++ b/components/script/clipboard_provider.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+use embedder_traits::EmbedderMsg;
 use ipc_channel::ipc::channel;
 use script_traits::{ScriptMsg, ScriptToConstellationChan};
 use std::borrow::ToOwned;
@@ -16,11 +17,17 @@ pub trait ClipboardProvider {
 impl ClipboardProvider for ScriptToConstellationChan {
     fn clipboard_contents(&mut self) -> String {
         let (tx, rx) = channel().unwrap();
-        self.send(ScriptMsg::GetClipboardContents(tx)).unwrap();
+        self.send(ScriptMsg::ForwardToEmbedder(
+            EmbedderMsg::GetClipboardContents(tx),
+        ))
+        .unwrap();
         rx.recv().unwrap()
     }
     fn set_clipboard_contents(&mut self, s: String) {
-        self.send(ScriptMsg::SetClipboardContents(s)).unwrap();
+        self.send(ScriptMsg::ForwardToEmbedder(
+            EmbedderMsg::SetClipboardContents(s),
+        ))
+        .unwrap();
     }
 }
 
diff --git a/ports/glutin/Cargo.toml b/ports/glutin/Cargo.toml
index 41fbf47d7342..d47b8bce8a91 100644
--- a/ports/glutin/Cargo.toml
+++ b/ports/glutin/Cargo.toml
@@ -54,6 +54,7 @@ libc = "0.2"
 log = "0.4"
 rust-webvr = { version = "0.11", features = ["glwindow"] }
 tinyfiledialogs = "3.0"
+clipboard = "0.5"
 
 [target.'cfg(any(target_os = "linux", target_os = "windows"))'.dependencies]
 image = "0.21"
diff --git a/ports/glutin/browser.rs b/ports/glutin/browser.rs
index e2f7d3979195..bde2b6b80f44 100644
--- a/ports/glutin/browser.rs
+++ b/ports/glutin/browser.rs
@@ -16,6 +16,7 @@ use servo::servo_config::opts;
 use servo::servo_config::pref;
 use servo::servo_url::ServoUrl;
 use servo::webrender_api::ScrollLocation;
+use clipboard::{ClipboardContext, ClipboardProvider};
 use std::env;
 use std::fs::File;
 use std::io::Write;
@@ -43,6 +44,7 @@ pub struct Browser<Window: WindowPortsMethods + ?Sized> {
     loading_state: Option<LoadingState>,
     window: Rc<Window>,
     event_queue: Vec<WindowEvent>,
+    clipboard_ctx: Option<ClipboardContext>,
     shutdown_requested: bool,
 }
 
@@ -66,6 +68,13 @@ where
             favicon: None,
             loading_state: None,
             window: window,
+            clipboard_ctx: match ClipboardContext::new() {
+                Ok(c) => Some(c),
+                Err(e) => {
+                    warn!("Error creating clipboard context ({})", e);
+                    None
+                },
+            },
             event_queue: Vec::new(),
             shutdown_requested: false,
         }
@@ -344,6 +353,32 @@ where
                 EmbedderMsg::Keyboard(key_event) => {
                     self.handle_key_from_servo(browser_id, key_event);
                 },
+                EmbedderMsg::GetClipboardContents(sender) => {
+                    println!("glutin/browser.rs GetClipboardContents {:?} ", browser_id);
+                    let contents = match self.clipboard_ctx {
+                        Some(ref mut ctx) => {
+                            match ctx.get_contents() {
+                                Ok(c) => c,
+                                Err(e) => {
+                                    warn!("Error getting clipboard contents ({}), defaulting to empty string", e);
+                                    "".to_owned()
+                                },
+                            }
+                        },
+                        None => "".to_owned(),
+                    };
+                    if let Err(e) = sender.send(contents) {
+                        warn!("Failed to send clipboard ({})", e);
+                    }
+                }
+                EmbedderMsg::SetClipboardContents(text) => {
+                    println!("browser.rs SetClipBoardContents {} {:?}", text, browser_id);
+                    if let Some( ref mut ctx ) = self.clipboard_ctx {
+                        if let Err(e) = ctx.set_contents(text) {
+                            warn!("Error setting clipboard contents ({})", e);
+                        }
+                    }
+                }
                 EmbedderMsg::SetCursor(cursor) => {
                     self.window.set_cursor(cursor);
                 },
diff --git a/ports/glutin/main2.rs b/ports/glutin/main2.rs
index 496c0515e19f..0e208fabb3cb 100644
--- a/ports/glutin/main2.rs
+++ b/ports/glutin/main2.rs
@@ -9,6 +9,7 @@ extern crate log;
 #[cfg(all(feature = "unstable", any(target_os = "macos", target_os = "linux")))]
 #[macro_use]
 extern crate sig;
+extern crate clipboard;
 
 mod app;
 mod browser;