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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,164 +1,106 @@ | ||
| #![cfg(feature = "wasm")] | ||
| extern crate base64; | ||
| use std::collections::HashMap; | ||
|
|
||
| use base64::engine::general_purpose::STANDARD; | ||
| use base64::Engine; | ||
| use gloo::file::callbacks::FileReader; | ||
| use gloo::file::File; | ||
| use web_sys::{DragEvent, Event, FileList, HtmlInputElement}; | ||
| use yew::html::TargetCast; | ||
| use yew::{html, Callback, Component, Context, Html}; | ||
| use web_sys::HtmlInputElement; | ||
| use yew::prelude::*; | ||
|
|
||
| use cega::color::palette::palette_from_abbr; | ||
| use cega::image::Image; | ||
| use cega::parser::ParserType; | ||
| use cega::png; | ||
| pub enum Msg { | ||
| Loaded(String, String, Vec<u8>), | ||
| Submit, | ||
| } | ||
|
|
||
| struct FileDetails { | ||
| name: String, | ||
| file_type: String, | ||
| data: Vec<u8>, | ||
| } | ||
|
|
||
| pub enum Msg { | ||
| Loaded(String, String, Vec<u8>), | ||
| Files(Vec<File>), | ||
| } | ||
|
|
||
| pub struct App { | ||
| readers: HashMap<String, FileReader>, | ||
| files: Vec<FileDetails>, | ||
| width: NodeRef, | ||
| file: NodeRef, | ||
| width_value: String, | ||
| file_value: Option<FileDetails>, | ||
| } | ||
|
|
||
| impl Component for App { | ||
| type Message = Msg; | ||
| type Properties = (); | ||
|
|
||
| fn create(_ctx: &Context<Self>) -> Self { | ||
| Self { | ||
| readers: HashMap::default(), | ||
| files: Vec::default(), | ||
| file: NodeRef::default(), | ||
| width: NodeRef::default(), | ||
| width_value: "".to_string(), | ||
| file_value: None, | ||
| } | ||
| } | ||
|
|
||
| fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool { | ||
| match msg { | ||
| Msg::Loaded(file_name, file_type, data) => { | ||
| self.files.push(FileDetails { | ||
| self.file_value = Some(FileDetails { | ||
| data, | ||
| file_type, | ||
| name: file_name.clone(), | ||
| }); | ||
| self.readers.remove(&file_name); | ||
| true | ||
| } | ||
| Msg::Files(files) => { | ||
| for file in files.into_iter() { | ||
| let file_name = file.name(); | ||
| let file_type = file.raw_mime_type(); | ||
|
|
||
| let task = { | ||
| let link = ctx.link().clone(); | ||
| let file_name = file_name.clone(); | ||
|
|
||
| gloo::file::callbacks::read_as_bytes(&file, move |res| { | ||
| link.send_message(Msg::Loaded( | ||
| file_name, | ||
| file_type, | ||
| res.expect("failed to read file"), | ||
| )) | ||
| }) | ||
| }; | ||
| self.readers.insert(file_name, task); | ||
| } | ||
| Msg::Submit => { | ||
| let width_field = self.width.cast::<HtmlInputElement>().unwrap(); | ||
| self.width_value = if width_field.value() == "" { | ||
| width_field.placeholder() | ||
| } else { | ||
| width_field.value() | ||
| }; | ||
| // let el = self.file.cast::<HtmlInputElement>().unwrap(); | ||
| // if let Some(file) = el.files().and_then(|m| m.item(0)) { | ||
| // let file_name = el.name(); | ||
| // let file_type = file.raw_mime_type(); | ||
|
|
||
| // let task = { | ||
| // let link = ctx.link().clone(); | ||
| // let file_name = file_name.clone(); | ||
|
|
||
| // gloo::file::callbacks::read_as_bytes(&file, move |res| { | ||
| // link.send_message(Msg::Loaded( | ||
| // file_name, | ||
| // file_type, | ||
| // res.expect("failed to read file"), | ||
| // )) | ||
| // }) | ||
| // }; | ||
| // } | ||
| true | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fn view(&self, ctx: &Context<Self>) -> Html { | ||
| html! { | ||
| <div id="wrapper"> | ||
| <p id="title">{ "Process your image files" }</p> | ||
| <label for="file-upload"> | ||
| <div | ||
| id="drop-container" | ||
| ondrop={ctx.link().callback(|event: DragEvent| { | ||
| event.prevent_default(); | ||
| let files = event.data_transfer().unwrap().files(); | ||
| Self::upload_files(files) | ||
| })} | ||
| ondragover={Callback::from(|event: DragEvent| { | ||
| event.prevent_default(); | ||
| })} | ||
| ondragenter={Callback::from(|event: DragEvent| { | ||
| event.prevent_default(); | ||
| })} | ||
| > | ||
| <i class="fa fa-cloud-upload"></i> | ||
| <p>{"Drop your images here or click to select"}</p> | ||
| </div> | ||
| </label> | ||
| <div class="main"> | ||
| <h1>{"Process your CGA"}</h1> | ||
| <div class="input-container"> | ||
| <label>{ "Width" }</label> | ||
| <input | ||
| type="text" | ||
| ref={&self.width} | ||
| class="input-element" | ||
| placeholder="320" | ||
| value={self.width_value.clone()} | ||
| /> | ||
| </div> | ||
| <input | ||
| id="file-upload" | ||
| type="file" | ||
| ref={&self.file} | ||
| accept="image/*,.bin,.cga,.ega" | ||
| multiple={true} | ||
| onchange={ctx.link().callback(move |e: Event| { | ||
| let input: HtmlInputElement = e.target_unchecked_into(); | ||
| Self::upload_files(input.files()) | ||
| })} | ||
| multiple={false} | ||
| onchange={ctx.link().callback(|_| Msg::Submit)} | ||
| /> | ||
| <div id="preview-area"> | ||
| { for self.files.iter().map(Self::view_file) } | ||
| </div> | ||
| </div> | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl App { | ||
| fn view_file(file: &FileDetails) -> Html { | ||
| let src = if file.file_type.contains("image") { | ||
| format!( | ||
| "data:{};base64,{}", | ||
| file.file_type, | ||
| STANDARD.encode(&file.data) | ||
| ) | ||
| } else { | ||
| let image = Image::new(&file.data, 320, ParserType::CGA); | ||
| let palette = palette_from_abbr("cga0"); | ||
| let mut bytes: Vec<u8> = Vec::new(); | ||
| let _ = png::write_to(&mut bytes, image.data(), palette.clone()); | ||
| format!("data:image/png;base64,{}", STANDARD.encode(bytes)) | ||
| }; | ||
|
|
||
| html! { | ||
| <div class="preview-tile"> | ||
| <p class="preview-name">{ format!("{}", file.name) }</p> | ||
| <div class="preview-media"> | ||
| <img src={src} /> | ||
| </div> | ||
| </div> | ||
| } | ||
| } | ||
|
|
||
| fn upload_files(files: Option<FileList>) -> Msg { | ||
| let mut result = Vec::new(); | ||
|
|
||
| if let Some(files) = files { | ||
| let files = js_sys::try_iter(&files) | ||
| .unwrap() | ||
| .unwrap() | ||
| .map(|v| web_sys::File::from(v.unwrap())) | ||
| .map(File::from); | ||
| result.extend(files); | ||
| } | ||
| Msg::Files(result) | ||
| } | ||
| } | ||
|
|
||
| fn main() { | ||
| yew::Renderer::<App>::new().render(); | ||
| } |