diff options
Diffstat (limited to 'src/lib.rs')
| -rw-r--r-- | src/lib.rs | 346 |
1 files changed, 345 insertions, 1 deletions
@@ -1,3 +1,347 @@ #![recursion_limit="1024"] +extern crate wee_alloc; +extern crate console_error_panic_hook; +use name::{NameView,Name}; +use genpdf::Element as _; +use genpdf::{elements, style, fonts}; +use qrcodegen::QrCode; +use qrcodegen::QrCodeEcc; +use wasm_bindgen::prelude::*; +use yew::prelude::*; +use vcard::{VCard, VCardError}; +use std::panic; -mod view;
\ No newline at end of file +mod name; + +// Use `wee_alloc` as the global allocator. +#[global_allocator] +static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT; + +fn init() { + panic::set_hook(Box::new(console_error_panic_hook::hook)); +} + +pub struct Download { + pub file_name: String, + pub content: String, + pub mime_type: MimeType, +} + +impl Download { + pub fn as_data_link(&self) -> String { + let data = base64::encode(&*self.content); + let uri_component: String = js_sys::encode_uri_component(&data).into(); + + format!("data:{};base64,{}", self.mime_type.as_text(), uri_component) + } +} + +impl Clone for Download { + fn clone(&self) -> Self { + Self { + file_name: self.file_name.clone(), + content: self.content.clone(), + mime_type: self.mime_type.clone(), + } + } +} + +pub enum MimeType { + PDF, + VCard, + SVG, +} + +impl MimeType { + pub fn as_text(&self) -> &str { + match self { + MimeType::PDF => "application/pdf", + MimeType::VCard => "text/vcard", + MimeType::SVG => "image/svg+xml", + } + } +} + +impl Clone for MimeType { + fn clone(&self) -> Self { + match self { + MimeType::PDF => MimeType::PDF, + MimeType::VCard => MimeType::VCard, + MimeType::SVG => MimeType::SVG, + } + } +} + +pub struct MainView { + link: ComponentLink<Self>, + error: Vec<String>, + name: Name, + download: Option<Download>, +} + +pub enum Msg { + UpdateName(Name), + GenerateVCard, + GeneratePdf, + GenerateQrCode, + Nope, +} + +impl Component for MainView { + type Message = Msg; + type Properties = (); + + fn create(_props: Self::Properties, link: ComponentLink<Self>) -> Self { + MainView { link, error: vec![], name: Name::new(), download: None, } + } + + fn update(&mut self, msg: Self::Message) -> ShouldRender { + self.error.clear(); + match msg { + Msg::UpdateName(value) => self.name = value, + Msg::GenerateVCard => { + match self.generate_vcard() { + Ok(vcard) => self.download = Some( + Download { + file_name: format!("{}.vcs", self.name.formatted_name()), + content: vcard.to_string(), + mime_type: MimeType::VCard, + } + ), + Err(VCardError::FormatError(err)) => self.error.push(err.to_string()), + Err(VCardError::EmptyFormatName) => self.error.push(String::from("A VCard should have at least one formatted name.")), + }; + } + Msg::GeneratePdf => { + match self.generate_pdf() { + Ok(pdf) => self.download = Some( + Download { + file_name: format!("Visitenkarten {}.pdf", self.name.formatted_name()), + content: pdf, + mime_type: MimeType::PDF, + } + ), + Err(_) => self.error.push(String::from("Unexpected error while generating the PDF. Please contact me about it.")), + } + } + Msg::GenerateQrCode => { + let mut vcard_content = None; + match self.generate_vcard() { + Ok(vcard) => vcard_content = Some(vcard.to_string()), + Err(VCardError::FormatError(err)) => self.error.push(err.to_string()), + Err(VCardError::EmptyFormatName) => self.error.push(String::from("A VCard should have at least one formatted name.")), + }; + if vcard_content.is_some() { + match QrCode::encode_text(vcard_content.as_ref().unwrap(), QrCodeEcc::Low) { + Ok(qr) => self.download = Some( + Download { + file_name: format!("QR-Code VCard {}.svg", self.name.formatted_name()), + content: qr.to_svg_string(4), + mime_type: MimeType::SVG, + } + ), + Err(_) => self.error.push(String::from("Sorry, VCard is too long!")), + }; + } + } + Msg::Nope => return false, + }; + if self.error.len() > 0 { + self.download = None; + } + true + } + + fn change(&mut self, _props: Self::Properties) -> ShouldRender { + false + } + + fn view(&self) -> Html { + + let download = self.download.clone(); + + let on_name_input = self.link.batch_callback(move |n: Name| + if download.is_some() { + vec![ + Msg::UpdateName(n), + match download.as_ref().unwrap().mime_type { + MimeType::PDF => Msg::GeneratePdf, + MimeType::SVG => Msg::GenerateQrCode, + MimeType::VCard => Msg::GenerateVCard, + } + ] + } else { + vec![Msg::UpdateName(n), Msg::GenerateVCard] + } + ); + + let download_options = self.link.callback(|e: ChangeData| + match e { + ChangeData::Select(v) => match v.value().as_str() { + "vcard" => Msg::GenerateVCard, + "pdf" => Msg::GeneratePdf, + "qrcode" => Msg::GenerateQrCode, + _ => Msg::Nope, + }, + _ => Msg::Nope, + } + ); + + html!{ + <> + <main> + <section class="hero"> + <div class="hero-body"> + <div class="container is-max-widescreen"> + <h1 class="title">{ "A Generator for vCards" }</h1> + <h2 class="subtitle">{ "Supports generating vCards (.vcf), print-ready PDF business cards and QR Codes" }</h2> + </div> + </div> + </section> + + <section class="section"> + <div class="container is-max-widescreen"> + + { self.render_errors() } + + <NameView oninput=on_name_input /> + + <div class="block"> + <div class="select"> + <select id="download_options" onchange=download_options> + <option value="vcard">{ "VCard (.vcf)" }</option> + <option value="pdf">{ "Print-ready PDF" }</option> + <option value="qrcode">{ "QR Code" }</option> + </select> + </div> + + { self.render_download() } + </div> + + <div class="block"> + { self.render_preview() } + </div> + + </div> + </section> + </main> + + <footer class="footer"> + <div class="content has-text-centered"> + <p> + <strong>{ "VCard Generator" }</strong> { " by " } <a href="https://jelemux.dev">{ "Jeremias Weber" }</a>{ ". "} + { "The source code is licenced " } <a href="http://opensource.org/licenses/mit-license.php">{ "MIT" }</a>{"."} + </p> + </div> + </footer> + </> + } + } +} + +impl MainView { + fn render_errors(&self) -> Html { + html!{ + <> + { + for self.error.iter().map(|err| + html!{ + <div class="notification is-danger is-light"> + { err } + </div> + } + ) + } + </> + } + } + fn render_download(&self) -> Html { + if self.download.is_some() { + let download = self.download.as_ref().unwrap(); + + html!{ + <a href=download.as_data_link() download=download.file_name class="button is-primary" > + { "Download" } + </a> + } + } else { + html!{} + } + } + fn render_preview(&self) -> Html { + if self.download.is_some() { + let download = self.download.as_ref().unwrap(); + + match download.mime_type { + MimeType::PDF => html!{ + <iframe src=download.as_data_link() alt="PDF Preview" width="400" height="550"/> + }, + MimeType::VCard => html!{ + <code> { download.content.clone() } </code> + }, + MimeType::SVG => html!{ + <img src=download.as_data_link() alt="Image Preview" class="image is-square" width="300" height="300"/> + }, + } + } else { + html!{} + } + } + fn generate_vcard(&self) -> Result<VCard, VCardError> { + match VCard::from_formatted_name_str(&self.name.formatted_name()) { + Ok(vcard) => Ok(vcard), + Err(err) => Err(err), + } + } + fn generate_pdf(&self) -> Result<String, ()>{ + let regular_bytes = include_bytes!("/usr/share/fonts/liberation/LiberationSans-Regular.ttf"); + let regular_font_data = fonts::FontData::new(regular_bytes.to_vec(), Some(printpdf::BuiltinFont::Helvetica)).expect("font data should be correct"); + + let bold_bytes = include_bytes!("/usr/share/fonts/liberation/LiberationSans-Bold.ttf"); + let bold_font_data = fonts::FontData::new(bold_bytes.to_vec(), Some(printpdf::BuiltinFont::HelveticaBold)).expect("font data should be correct"); + + let italic_bytes = include_bytes!("/usr/share/fonts/liberation/LiberationSans-Italic.ttf"); + let italic_font_data = fonts::FontData::new(italic_bytes.to_vec(), Some(printpdf::BuiltinFont::HelveticaOblique)).expect("font data should be correct"); + + let bold_italic_bytes = include_bytes!("/usr/share/fonts/liberation/LiberationSans-BoldItalic.ttf"); + let bold_italic_font_data = fonts::FontData::new(bold_italic_bytes.to_vec(), Some(printpdf::BuiltinFont::HelveticaBoldOblique)).expect("font data should be correct"); + + let font_family = fonts::FontFamily{ + regular: regular_font_data, + bold: bold_font_data, + italic: italic_font_data, + bold_italic: bold_italic_font_data + }; + + let mut doc = genpdf::Document::new(font_family); + + doc.set_title("BCard test"); + doc.set_minimal_conformance(); + doc.set_margins(10); + doc.set_line_spacing(1.25); + + doc.push( + elements::Paragraph::new("genpdf Demo Document") + .aligned(elements::Alignment::Center) + .styled(style::Style::new().bold().with_font_size(20)), + ); + + // TODO fill doc with real data + + let mut buf: Vec<u8> = Vec::new(); + match doc.render(&mut buf) { + Ok(_) => Ok(match String::from_utf8(buf) { + Ok(s) => s, + Err(_) => return Err(()), + }), + Err(_) => Err(()), + } + } +} + + +#[wasm_bindgen(start)] +pub fn run_app() { + init(); + App::<MainView>::new().mount_to_body(); +}
\ No newline at end of file |