95 lines
3.5 KiB
Rust
95 lines
3.5 KiB
Rust
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// Copyright 2024 The Grim Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::sync::Arc;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::{fs, thread};
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use parking_lot::RwLock;
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use crate::gui::Colors;
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use crate::gui::icons::FILE_ARROW_UP;
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use crate::gui::platform::PlatformCallbacks;
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use crate::gui::views::View;
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/// Button to pick file and parse its data into text.
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pub struct FilePickButton {
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/// Flag to check if file is parsing.
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pub file_parsing: Arc<AtomicBool>,
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/// File parsing result.
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pub file_parsing_result: Arc<RwLock<Option<String>>>
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}
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impl Default for FilePickButton {
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fn default() -> Self {
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Self {
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file_parsing: Arc::new(AtomicBool::new(false)),
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file_parsing_result: Arc::new(RwLock::new(None))
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}
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}
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}
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impl FilePickButton {
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/// Draw button content.
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pub fn ui(&mut self,
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ui: &mut egui::Ui,
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cb: &dyn PlatformCallbacks,
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on_result: impl FnOnce(String)) {
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if self.file_parsing.load(Ordering::Relaxed) {
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// Draw loading spinner on file parsing.
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View::small_loading_spinner(ui);
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// Check file parsing result.
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let has_result = {
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let r_res = self.file_parsing_result.read();
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r_res.is_some()
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};
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if has_result {
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let text = {
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let r_res = self.file_parsing_result.read();
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r_res.clone().unwrap()
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};
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// Callback on result.
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on_result(text);
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// Clear result.
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let mut w_res = self.file_parsing_result.write();
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*w_res = None;
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self.file_parsing.store(false, Ordering::Relaxed);
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}
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} else {
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// Draw button to pick file.
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let file_text = format!("{} {}", FILE_ARROW_UP, t!("choose_file"));
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View::colored_text_button(ui, file_text, Colors::blue(), Colors::button(), || {
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if let Some(path) = cb.pick_file() {
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// Parse file at new thread.
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self.file_parsing.store(true, Ordering::Relaxed);
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let result = self.file_parsing_result.clone();
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thread::spawn(move || {
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if path.ends_with(".gif") {
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//TODO: Detect QR codes on GIF file.
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} else if path.ends_with(".jpeg") || path.ends_with(".jpg") ||
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path.ends_with(".png") {
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//TODO: Detect QR codes on image files.
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} else {
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// Parse file as plain text.
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if let Ok(text) = fs::read_to_string(path) {
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let mut w_res = result.write();
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*w_res = Some(text);
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}
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}
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});
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}
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});
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}
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}
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}
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