74 lines
2.2 KiB
Rust
74 lines
2.2 KiB
Rust
use crate::host_bridge::protocol::{HOST_BRIDGE_PROTOCOL, HOST_BRIDGE_VERSION};
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use serde_json::{json, Value};
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const HOST_BRIDGE_EVENTS: [&str; 3] = [
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"app.lifecycle",
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"navigation.canGoBack",
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"file.imageDropped",
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];
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fn is_host_bridge_event_name(event: &str) -> bool {
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HOST_BRIDGE_EVENTS.contains(&event)
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}
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pub(crate) fn host_bridge_event_script(
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event: &str,
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payload: Value,
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) -> Result<String, serde_json::Error> {
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if !is_host_bridge_event_name(event) {
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return Err(serde_json::Error::io(std::io::Error::new(
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std::io::ErrorKind::InvalidInput,
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format!("unknown HostBridge event: {}", event),
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)));
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}
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let message = json!({
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"bridge": HOST_BRIDGE_PROTOCOL,
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"version": HOST_BRIDGE_VERSION,
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"event": event,
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"payload": payload,
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});
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let data = serde_json::to_string(&message)?;
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let data_literal = serde_json::to_string(&data)?;
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Ok(format!(
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"window.dispatchEvent(new MessageEvent('message', {{ data: {}, origin: window.location.origin, source: window }})); true;",
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data_literal
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))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use serde_json::json;
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#[test]
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fn host_bridge_event_script_dispatches_lifecycle_message() {
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let script = host_bridge_event_script(
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"app.lifecycle",
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json!({
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"state": "active",
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"focused": true,
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"nativeState": "focused",
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}),
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)
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.expect("event script");
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assert!(script.contains("MessageEvent('message'"));
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assert!(script.contains("origin: window.location.origin"));
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assert!(script.contains("source: window"));
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assert!(script.contains("GenarrativeHostBridge"));
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assert!(script.contains("app.lifecycle"));
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assert!(script.contains("\\\"state\\\":\\\"active\\\""));
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assert!(script.contains("\\\"focused\\\":true"));
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}
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#[test]
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fn host_bridge_event_script_rejects_unknown_events() {
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let error =
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host_bridge_event_script("unknown.event", json!({})).expect_err("unknown event");
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assert!(error.to_string().contains("unknown HostBridge event"));
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}
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}
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