wehub-resource-sync
27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
# canvas-preview
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The "native, web, or both per window" proof: one window hosting a Native SDK canvas (Metal-backed toolbar + sidebar rendered by the widget engine) and a live platform webview side by side.
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- The webview is an ordinary scene shell view (`kind = .webview`, parented to the canvas view). The build's web engine backs it: WKWebView with `-Dweb-engine=system` (default), bundled Chromium with `-Dweb-engine=cef` — the pane seam below is engine-agnostic, though gpu_surface canvases currently require the system engine on macOS.
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- `UiApp.Options.web_panes` keeps the webview snapped to a canvas widget's layout frame — the empty panel carrying the `preview-pane` semantics label — through install, rebuilds, and resizes.
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- The model owns `url` + `reload_token` (the CenterPane/Preview-tab consumer shape): switching pages navigates, bumping the token reloads.
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- `UiApp.Options.status_item` installs a menu-bar extra (macOS `NSStatusItem`) whose menu items dispatch the same `on_command` commands as the toolbar buttons.
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Run it:
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```sh
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native dev
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```
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Automation smoke (from the repo root):
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```sh
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zig build test-canvas-preview-smoke
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```
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Headless tests:
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```sh
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native test
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```
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