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https://github.com/bulwarkmail/native.git
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Linus Rath
4fdf39aa08
Back inside a Files subfolder switched to the Mail tab. It now closes an open preview, then leaves selection mode, then goes up one folder, and only switches tabs at the root. `filesBackStep` holds that order.
20 lines
735 B
TypeScript
20 lines
735 B
TypeScript
/** What Android back does in the Files tab. */
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export type FilesBackStep = 'close-preview' | 'clear-selection' | 'folder-up' | 'leave';
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/**
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* Back works through the tab's own layers, innermost first: an open preview
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* closes, then selection mode ends (like the header's X), then the folder
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* goes up one level. Only at the root with nothing open does it `leave`,
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* i.e. fall through to navigation, which switches to the Mail tab.
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*/
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export function filesBackStep(state: {
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previewOpen: boolean;
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selecting: boolean;
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folderDepth: number;
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}): FilesBackStep {
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if (state.previewOpen) return 'close-preview';
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if (state.selecting) return 'clear-selection';
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if (state.folderDepth > 0) return 'folder-up';
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return 'leave';
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}
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