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extern crate console_error_panic_hook;
use qrcodegen::QrCode;
use qrcodegen::QrCodeEcc;
use crate::pdfgen;
use wasm_bindgen::prelude::*;
use js_sys;
use yew::prelude::*;
use vcard::{VCard, VCardError};
use std::panic;
fn init() {
panic::set_hook(Box::new(console_error_panic_hook::hook));
}
pub struct Form {
link: ComponentLink<Self>,
error: Vec<String>,
formatted_name: String,
vcard: Option<String>,
qr_code: Option<String>,
}
pub enum Msg {
UpdateFormattedName(String),
GenerateVCard,
GeneratePdf,
GenerateQrCode,
Nope,
}
impl Component for Form {
type Message = Msg;
type Properties = ();
fn create(_props: Self::Properties, link: ComponentLink<Self>) -> Self {
Self { link, error: vec![], formatted_name: String::new(), vcard: None, qr_code: None }
}
fn update(&mut self, msg: Self::Message) -> ShouldRender {
self.error.clear();
match msg {
Msg::UpdateFormattedName(value) => self.formatted_name = String::from(value),
Msg::GenerateVCard => {
match self.generate_vcard() {
Ok(vcard) => self.vcard = 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.")),
};
}
Msg::GeneratePdf => {
}
Msg::GenerateQrCode => {
match self.generate_vcard() {
Ok(vcard) => self.vcard = 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 self.vcard.is_some() {
match QrCode::encode_text(self.vcard.as_ref().unwrap(), QrCodeEcc::Low) {
Ok(qr) => self.qr_code = Some(qr.to_svg_string(4)),
Err(_) => self.error.push(String::from("Sorry, VCard is too long!")),
};
}
}
Msg::Nope => return false,
};
if self.error.len() > 0 {
self.vcard = None;
self.qr_code = None;
}
true
}
fn change(&mut self, _props: Self::Properties) -> ShouldRender {
false
}
fn view(&self) -> Html {
let formatted_name_input = self.link.batch_callback(|e: InputData|
vec![Msg::UpdateFormattedName(e.value), 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!{
<div class="container">
<div class="banner row">
<div class="span twelve">
<h4>{ "A Generator for vCards" }</h4>
<h5>{ "Supports generating vCards (.vcf), print-ready PDF business cards and QR Codes" }</h5>
</div>
</div>
{ self.render_error() }
<h4 class="explainer">{ "Name" }</h4>
<form class="row">
<label for="formatted_name">{ "Formatted name: " }</label>
<input id="formatted_name" type="text" oninput=formatted_name_input/>
<br/>
<label for="prefix">{ "Prefix: " }</label>
<input id="prefix" type="text"/>
<br/>
<label for="first_name">{ "First name: " }</label>
<input id="first_name" type="text"/>
<label for="middle_name">{ "Middle name: " }</label>
<input id="middle_name" type="text"/>
<label for="last_name">{ "Last name: " }</label>
<input id="last_name" type="text"/>
<br/>
<label for="suffix">{ "Suffix: " }</label>
<input id="suffix" type="text"/>
</form>
<select id="download_options" onchange=download_options>
<option value="">{ "" }</option>
<option value="vcard">{ "VCard (.vcf)" }</option>
<option value="pdf">{ "Print-ready PDF" }</option>
<option value="qrcode">{ "QR Code" }</option>
</select>
{ self.render_pdf() } { self.render_vcard() }
<div class="row">
{ self.render_qrcode() }
</div>
</div>
}
}
}
impl Form {
fn generate_vcard(&self) -> Result<VCard, VCardError> {
match VCard::from_formatted_name_str(&self.formatted_name) {
Ok(vcard) => Ok(vcard),
Err(err) => Err(err),
}
}
fn render_error(&self) -> Html {
html!{
<>
{
for self.error.iter().map(|err|
html!{
<div class="alert danger">
<p>{ err }</p>
</div>
}
)
}
</>
}
}
fn render_pdf(&self) -> Html {
let raw = pdfgen::genpdf();
let data = base64::encode(&raw);
let uri_component: String = js_sys::encode_uri_component(&data).into();
let href = format!{"data:application/pdf;base64,{}", uri_component };
html!{
<a href=href download="demo.pdf" class="button success small" >
{ "Download PDF" }
</a>
}
}
fn render_vcard(&self) -> Html {
if self.vcard.is_some() {
let data = base64::encode(self.vcard.as_ref().unwrap());
let uri_component: String = js_sys::encode_uri_component(&data).into();
let href = format!("data:text/vcard;base64,{}", uri_component);
html!{
<a href=href download=format!("{}.vcs",self.formatted_name) class="button success small">
{ "Download vCard" }
</a>
}
} else {
html!{}
}
}
fn render_qrcode(&self) -> Html {
if self.qr_code.is_some() {
let data = base64::encode(self.qr_code.as_ref().unwrap());
let uri_component: String = js_sys::encode_uri_component(&data).into();
let src = format!("data:image/svg+xml;base64,{}", uri_component);
html!{
<img src=src alt="QR Code" width="200" height="200"/>
}
} else {
html!{}
}
}
}
#[wasm_bindgen(start)]
pub fn run_app() {
init();
App::<Form>::new().mount_to_body();
}
|
