@launchmenu/core
Version:
An environment for visual keyboard controlled applets
38 lines • 2.95 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.usePaneIsVisible = void 0;
const model_react_1 = require("model-react");
const react_1 = require("react");
/**
* Checks whether the pane for a viewstack should be visible
* @param stack The stack of items for which to check whether the pane should be visible
* @param defaultTransitionDuration The duration of the open/close transition
* @returns WHether the pane should be open, and possible transition durations
*/
function usePaneIsVisible(stack, defaultTransitionDuration = 150) {
var _a;
const state = react_1.useRef({
open: true,
prevOpen: true,
duration: defaultTransitionDuration,
prevTop: undefined,
});
const [h] = model_react_1.useDataHook();
const items = stack(h);
const top = items[items.length - 1];
state.current.prevOpen = state.current.open;
if (state.current.prevTop != top) {
state.current.prevTop = top;
state.current.open = true;
if (top) {
const topItem = top === null || top === void 0 ? void 0 : top.value;
if (topItem && "close" in topItem) {
state.current.open = false;
state.current.duration = (_a = topItem.closeTransitionDuration) !== null && _a !== void 0 ? _a : defaultTransitionDuration;
}
}
}
return state.current;
}
exports.usePaneIsVisible = usePaneIsVisible;
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