xcelerate 0.1.5

A high-performance, lightweight Chrome DevTools Protocol (CDP) client for Rust.
Documentation 
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use crate::page::Page;
use crate::error::XcelerateResult;
use std::sync::Arc;

/// Represents an HTML element in the DOM.
#[derive(uniffi::Object)]
pub struct Element {
    pub(crate) page: Arc<Page>,
    pub(crate) object_id: String,
}

#[uniffi::export(async_runtime = "tokio")]
impl Element {
    /// Clicks the element.
    pub async fn click(self: Arc<Self>) -> XcelerateResult<Arc<Self>> {
        self.page.client.execute_with_session(
            Some(&self.page.session_id),
            js_protocol::runtime::CallFunctionOnParams {
                functionDeclaration: "function() { this.click(); }".into(),
                objectId: Some(self.object_id.clone()),
                ..Default::default()
            }
        ).await?;
        
        Ok(self)
    }

    pub async fn type_text(self: Arc<Self>, text: String) -> XcelerateResult<Arc<Self>> {
        let js = "function(t) { this.value = t; this.dispatchEvent(new Event('input', { bubbles: true })); }";
        self.page.client.execute_with_session(
            Some(&self.page.session_id),
            js_protocol::runtime::CallFunctionOnParams {
                functionDeclaration: js.into(),
                arguments: Some(vec![js_protocol::runtime::CallArgument {
                    value: Some(serde_json::json!(text)),
                    ..Default::default()
                }]),
                objectId: Some(self.object_id.clone()),
                ..Default::default()
            }
        ).await?;
        
        Ok(self)
    }

    /// Hovers over the element.
    pub async fn hover(self: Arc<Self>) -> XcelerateResult<Arc<Self>> {
        self.call_js("function() { this.dispatchEvent(new MouseEvent('mouseover', { bubbles: true })); }".to_string()).await?;
        Ok(self)
    }

    /// Focuses the element.
    pub async fn focus(self: Arc<Self>) -> XcelerateResult<Arc<Self>> {
        self.call_js("function() { this.focus(); }".to_string()).await?;
        Ok(self)
    }

    /// Returns the visible text of the element.
    pub async fn text(&self) -> XcelerateResult<String> {
        let res = self.call_js("function() { return this.innerText; }".to_string()).await?;
        Ok(res.result.value.and_then(|v| v.as_str().map(|s| s.to_string())).unwrap_or_default())
    }

    /// Returns the value of a specific attribute.
    pub async fn attribute(&self, name: String) -> XcelerateResult<Option<String>> {
        let js = format!("function() {{ return this.getAttribute('{}'); }}", name);
        let res = self.call_js(js).await?;
        Ok(res.result.value.and_then(|v| v.as_str().map(|s| s.to_string())))
    }

    /// Returns the inner HTML of the element.
    pub async fn inner_html(&self) -> XcelerateResult<String> {
        let res = self.call_js("function() { return this.innerHTML; }".to_string()).await?;
        Ok(res.result.value.and_then(|v| v.as_str().map(|s| s.to_string())).unwrap_or_default())
    }
}

impl Element {
    /// Helper to call JS on this element.
    async fn call_js(&self, js: String) -> XcelerateResult<js_protocol::runtime::CallFunctionOnReturns> {
        self.page.client.execute_with_session(
            Some(&self.page.session_id),
            js_protocol::runtime::CallFunctionOnParams {
                functionDeclaration: js,
                objectId: Some(self.object_id.clone()),
                ..Default::default()
            }
        ).await
    }
}