/*
* This file is part of espanso.
*
* Copyright (C) 2019 Federico Terzi
*
* espanso is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* espanso is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with espanso. If not, see .
*/
use crate::bridge::windows::{
get_clipboard, set_clipboard, set_clipboard_html, set_clipboard_image,
};
use std::{ffi::CString, path::Path};
use widestring::U16CString;
pub struct WindowsClipboardManager {}
impl WindowsClipboardManager {
pub fn new() -> WindowsClipboardManager {
WindowsClipboardManager {}
}
}
impl super::ClipboardManager for WindowsClipboardManager {
fn get_clipboard(&self) -> Option {
unsafe {
let mut buffer: [u16; 2000] = [0; 2000];
let res = get_clipboard(buffer.as_mut_ptr(), (buffer.len() - 1) as i32);
if res > 0 {
let c_string = U16CString::from_ptr_str(buffer.as_ptr());
let string = c_string.to_string_lossy();
return Some((*string).to_owned());
}
}
None
}
fn set_clipboard(&self, payload: &str) {
unsafe {
let payload_c = U16CString::from_str(payload).unwrap();
set_clipboard(payload_c.as_ptr());
}
}
fn set_clipboard_image(&self, image_path: &Path) {
let path_string = image_path.to_string_lossy().into_owned();
unsafe {
let payload_c = U16CString::from_str(path_string).unwrap();
set_clipboard_image(payload_c.as_ptr());
}
}
fn set_clipboard_html(&self, html: &str) {
// In order to set the HTML clipboard, we have to create a prefix with a specific format
// For more information, look here:
// https://docs.microsoft.com/en-us/windows/win32/dataxchg/html-clipboard-format
// https://docs.microsoft.com/en-za/troubleshoot/cpp/add-html-code-clipboard
let mut tokens = Vec::new();
tokens.push("Version:0.9");
tokens.push("StartHTML:<");
tokens.push("EndHTML:<");
tokens.push("StartFragment:<");
tokens.push("EndFragment:<");
tokens.push("");
tokens.push("");
let content = format!("{}", html);
tokens.push(&content);
tokens.push("");
tokens.push("");
let mut render = tokens.join("\r\n");
// Now replace the placeholders with the actual positions
render = render.replace(
"<",
&format!("{:0>8}", render.find("").unwrap_or_default()),
);
render = render.replace("<", &format!("{:0>8}", render.len()));
render = render.replace(
"<",
&format!(
"{:0>8}",
render.find("").unwrap_or_default()
+ "".len()
),
);
render = render.replace(
"<",
&format!(
"{:0>8}",
render.find("").unwrap_or_default()
),
);
// Render the text fallback for those applications that don't support HTML clipboard
let decorator = html2text::render::text_renderer::TrivialDecorator::new();
let text_fallback =
html2text::from_read_with_decorator(html.as_bytes(), 1000000, decorator);
unsafe {
let payload_c =
CString::new(render).expect("unable to create CString for html content");
let payload_fallback_c = U16CString::from_str(text_fallback).unwrap();
set_clipboard_html(payload_c.as_ptr(), payload_fallback_c.as_ptr());
}
}
}