Trait Chrome

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pub trait Chrome: Debug {
Show 13 methods    // Required methods
    fn content_rect(&self, width: f32, height: f32) -> Rect;
    fn draw(&mut self, cmd_buf: &mut Vec<DrawCommand>, width: f32, height: f32);
    fn tick(
        &mut self,
        actions_buf: &mut Vec<ChromeAction>,
    ) -> (Vec<FetchRequest>, bool);
    fn deliver_fetch(
        &mut self,
        kind: FetchKind,
        url: Url,
        response: Result<BrowserResponse, BrowserNetworkError>,
    );
    fn sync_url(&mut self, url: Option<&str>);
    fn pointer_event(
        &mut self,
        width: f32,
        height: f32,
        event: PointerEvent,
        state: ElementState,
    ) -> ChromeEventResult;
    fn handle_scroll(
        &mut self,
        width: f32,
        height: f32,
        mouse_x: f32,
        mouse_y: f32,
        scroll_x: f32,
        scroll_y: f32,
    );
    fn accepts_text_input(&self) -> bool;
    fn key_event(&mut self, event: &KeyEvent, ctrl: bool) -> ChromeAction;
    fn ime_event(&mut self, event: &Ime) -> ChromeAction;
    fn on_devtools_response(&mut self, id: u64, result: String);
    fn blur(&mut self);
    fn needs_repaint(&self) -> bool;
}

Expand description

The window chrome surrounding the web content.

The core lays out the page area below the chrome, draws the chrome on top of it, and routes user input through the chrome. Pointer events are delivered in window coordinates; the chrome answers whether it consumed them and which ChromeAction they produced.

Required Methods§

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fn content_rect(&self, width: f32, height: f32) -> Rect

Rect of the content (web view).

§Return:

(width, height)

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fn draw(&mut self, cmd_buf: &mut Vec<DrawCommand>, width: f32, height: f32)

Draws the chrome into cmd_buf in window coordinates.

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fn tick( &mut self, actions_buf: &mut Vec<ChromeAction>, ) -> (Vec<FetchRequest>, bool)

Advances chrome-owned tabs and returns their fetch and browser actions.

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fn deliver_fetch( &mut self, kind: FetchKind, url: Url, response: Result<BrowserResponse, BrowserNetworkError>, )

Delivers a resource fetch result requested by the chrome itself.

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fn sync_url(&mut self, url: Option<&str>)

Reflects the active tab’s URL, if the chrome shows one.

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fn pointer_event( &mut self, width: f32, height: f32, event: PointerEvent, state: ElementState, ) -> ChromeEventResult

Dispatches a pointer event to the chrome.

The chrome receives every pointer event, including moves over the page area, so it can track its own hover state.

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fn handle_scroll( &mut self, width: f32, height: f32, mouse_x: f32, mouse_y: f32, scroll_x: f32, scroll_y: f32, )

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fn accepts_text_input(&self) -> bool

Whether the chrome currently owns keyboard/IME input (e.g. a focused address bar). While true, key and IME events are routed to the chrome instead of the page.

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