70 lines
2.8 KiB
Rust
70 lines
2.8 KiB
Rust
//! A `WebViewHandle` represents an underlying `WKWebView`. You're passed a reference to one during your
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//! `WebViewController::did_load()` method. This method is safe to store and use, however as it's
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//! UI-specific it's not thread safe.
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//!
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//! You can use this struct to configure how a view should look and layout. It implements
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//! AutoLayout - for more information, see the AutoLayout tutorial.
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use objc_id::ShareId;
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use objc::runtime::Object;
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use objc::{msg_send, sel, sel_impl};
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use crate::foundation::{id, YES, NSArray, NSString};
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use crate::color::Color;
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use crate::constants::BACKGROUND_COLOR;
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use crate::layout::{Layout, LayoutAnchorX, LayoutAnchorY, LayoutAnchorDimension};
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use crate::pasteboard::PasteboardType;
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/// A clone-able handler to a `ViewController` reference in the Objective C runtime. We use this
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/// instead of a stock `WKWebView` for easier recordkeeping, since it'll need to hold the `WKWebView` on that
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/// side anyway.
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#[derive(Debug, Default, Clone)]
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pub struct WebViewHandle {
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/// A pointer to the Objective-C runtime view controller.
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pub objc: Option<ShareId<Object>>,
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/// A pointer to the Objective-C runtime top layout constraint.
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pub top: LayoutAnchorY,
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/// A pointer to the Objective-C runtime leading layout constraint.
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pub leading: LayoutAnchorX,
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/// A pointer to the Objective-C runtime trailing layout constraint.
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pub trailing: LayoutAnchorX,
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/// A pointer to the Objective-C runtime bottom layout constraint.
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pub bottom: LayoutAnchorY,
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/// A pointer to the Objective-C runtime width layout constraint.
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pub width: LayoutAnchorDimension,
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/// A pointer to the Objective-C runtime height layout constraint.
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pub height: LayoutAnchorDimension,
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/// A pointer to the Objective-C runtime center X layout constraint.
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pub center_x: LayoutAnchorX,
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/// A pointer to the Objective-C runtime center Y layout constraint.
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pub center_y: LayoutAnchorY
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}
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impl WebViewHandle {
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pub(crate) fn new(object: ShareId<Object>) -> Self {
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let view: id = unsafe {
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msg_send![&*object, view]
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};
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WebViewHandle {
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objc: Some(object),
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top: LayoutAnchorY::new(unsafe { msg_send![view, topAnchor] }),
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leading: LayoutAnchorX::new(unsafe { msg_send![view, leadingAnchor] }),
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trailing: LayoutAnchorX::new(unsafe { msg_send![view, trailingAnchor] }),
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bottom: LayoutAnchorY::new(unsafe { msg_send![view, bottomAnchor] }),
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width: LayoutAnchorDimension::new(unsafe { msg_send![view, widthAnchor] }),
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height: LayoutAnchorDimension::new(unsafe { msg_send![view, heightAnchor] }),
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center_x: LayoutAnchorX::new(unsafe { msg_send![view, centerXAnchor] }),
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center_y: LayoutAnchorY::new(unsafe { msg_send![view, centerYAnchor] }),
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}
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}
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}
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