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