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use crate::{FlutterEngineInner};
use super::{Plugin, PlatformMessage, PluginRegistry, ffi::FlutterPlatformMessageResponseHandle};
use channel::{ Channel, JsonMethodChannel };
use codec::MethodCallResult;
use std::sync::{ Arc, Mutex };
use serde_json::Value;
const CHANNEL_NAME: &str = "flutter-rs/dialog";
pub struct DialogPlugin {
channel: Arc<Mutex<JsonMethodChannel>>,
}
impl DialogPlugin {
pub fn new() -> Self {
DialogPlugin {
channel: Arc::new(Mutex::new(JsonMethodChannel::new(CHANNEL_NAME)))
}
}
}
impl Plugin for DialogPlugin {
fn init_channel(&self, registry: &PluginRegistry) -> &str {
let channel = self.channel.lock().unwrap();
channel.init(registry);
CHANNEL_NAME
}
fn handle(&mut self, msg: &PlatformMessage, _engine: Arc<FlutterEngineInner>, _window: &mut glfw::Window) {
let channel = self.channel.lock().unwrap();
let decoded = channel.decode_method_call(msg);
match decoded.method.as_str() {
"open_file_dialog" => {
let c = self.channel.clone();
let handle = msg.get_response_handle();
std::thread::spawn(move || {
let s = serde_json::to_string(&decoded.args);
let params: serde_json::Result<OpenFileDialogParams> = serde_json::from_str(&s.unwrap());
if params.is_err() {
let channel = c.lock().unwrap();
channel.send_method_call_response(
handle.map(|h| {
unsafe {
&*(h as *const FlutterPlatformMessageResponseHandle)
}
}),
MethodCallResult::Err{
code: "1002".to_owned(),
message: "Params error".to_owned(),
details: Value::Null,
},
);
return;
}
let params = params.unwrap();
let OpenFileDialogParams {title, path, filter} = params;
let filter2 = filter.as_ref().map(|(p, n)| {
let p: Vec<&str> = p.iter().map(|v| v.as_str()).collect();
(p, n)
});
let path = tinyfiledialogs::open_file_dialog(
title.as_ref().unwrap_or(&String::from("")),
path.as_ref().unwrap_or(&String::from("")),
filter2.as_ref().map(|(p, n)| {
(p.as_slice(), n.as_str())
}),
);
let s = match &path {
Some(p) => p,
None => "",
};
let channel = c.lock().unwrap();
channel.send_method_call_response(
handle.map(|h| {
unsafe {
&*(h as *const FlutterPlatformMessageResponseHandle)
}
}),
MethodCallResult::Ok(json!(s)),
);
});
},
"message_box_ok" => {
let c = self.channel.clone();
let handle = msg.get_response_handle();
std::thread::spawn(move || {
let s = serde_json::to_string(&decoded.args);
let params: serde_json::Result<MessageBoxOkParams> = serde_json::from_str(&s.unwrap());
if params.is_err() {
let channel = c.lock().unwrap();
channel.send_method_call_response(
handle.map(|h| {
unsafe {
&*(h as *const FlutterPlatformMessageResponseHandle)
}
}),
MethodCallResult::Err{
code: "1002".to_owned(),
message: "Params error".to_owned(),
details: Value::Null,
},
);
return;
}
let params = params.unwrap();
let MessageBoxOkParams {title, message, icon} = params;
let icon = match icon.unwrap_or(MessageBoxIcon::Info) {
MessageBoxIcon::Info => tinyfiledialogs::MessageBoxIcon::Info,
MessageBoxIcon::Error => tinyfiledialogs::MessageBoxIcon::Error,
MessageBoxIcon::Question => tinyfiledialogs::MessageBoxIcon::Question,
MessageBoxIcon::Warning => tinyfiledialogs::MessageBoxIcon::Warning,
};
tinyfiledialogs::message_box_ok(
title.as_str(), message.as_str(), icon,
);
let channel = c.lock().unwrap();
channel.send_method_call_response(
handle.map(|h| {
unsafe {
&*(h as *const FlutterPlatformMessageResponseHandle)
}
}),
MethodCallResult::Ok(json!(Value::Null)),
);
});
},
_ => (),
}
}
}
#[derive(Serialize, Deserialize)]
struct OpenFileDialogParams {
title: Option<String>,
path: Option<String>,
filter: Option<(Vec<String>, String)>,
}
#[derive(Serialize, Deserialize)]
struct MessageBoxOkParams {
title: String,
message: String,
icon: Option<MessageBoxIcon>,
}
#[derive(Serialize, Deserialize)]
pub enum MessageBoxIcon {
Info,
Warning,
Error,
Question,
}