67 lines
2.2 KiB
Rust
67 lines
2.2 KiB
Rust
//! A wrapper for `WKWebViewConfiguration`. It aims to (mostly) cover
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//! the important pieces of configuring and updating a WebView configuration.
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use objc_id::Id;
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use objc::runtime::Object;
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use objc::{class, msg_send, sel, sel_impl};
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use crate::foundation::{id, YES, NSString};
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use crate::webview::enums::InjectAt;
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/// A wrapper for `WKWebViewConfiguration`. Holds (retains) pointers for the Objective-C runtime
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/// where everything lives.
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pub struct WebViewConfig {
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pub objc: Id<Object>,
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pub handlers: Vec<String>
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}
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impl Default for WebViewConfig {
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/// Initializes a default `WebViewConfig`.
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fn default() -> Self {
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let config = unsafe {
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let config: id = msg_send![class!(WKWebViewConfiguration), new];
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Id::from_ptr(config)
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};
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WebViewConfig {
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objc: config,
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handlers: vec![]
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}
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}
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}
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impl WebViewConfig {
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/// Pushes the specified handler name onto the stack, queuing it for initialization with the
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/// `WKWebView`.
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pub fn add_handler(&mut self, name: &str) {
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self.handlers.push(name.to_string());
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}
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/// Adds the given user script to the underlying `WKWebView` user content controller.
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pub fn add_user_script(&mut self, script: &str, at: InjectAt, main_frame_only: bool) {
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let source = NSString::new(script);
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unsafe {
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let alloc: id = msg_send![class!(WKUserScript), alloc];
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let user_script: id = msg_send![alloc, initWithSource:source injectionTime:inject_at forMainFrameOnly:match main_frame_only {
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true => YES,
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false => NO
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}];
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let content_controller: id = msg_send![&*self.objc, userContentController];
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let _: () = msg_send![content_controller, addUserScript:user_script];
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}
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}
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/// Enables access to the underlying inspector view for `WKWebView`.
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pub fn enable_developer_extras(&mut self) {
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let key = NSString::new("developerExtrasEnabled");
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unsafe {
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let yes: id = msg_send![class!(NSNumber), numberWithBool:YES];
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let preferences: id = msg_send![&*self.objc, preferences];
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let _: () = msg_send![preferences, setValue:yes forKey:key];
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}
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}
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}
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