Xiaohan-Tian
83 lines
2.8 KiB
TypeScript
83 lines
2.8 KiB
TypeScript
import { KGCore } from '../core/KGCore';
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import { useProjectStore } from '../stores/projectStore';
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/**
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* Utility functions for copy/paste operations
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* Extracted from useGlobalKeyboardHandler for reuse in toolbar buttons
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*/
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/**
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* Handles copy operation for currently selected items
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* @returns {boolean} true if items were copied, false if no items were selected
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*/
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export const handleCopyOperation = (): boolean => {
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const core = KGCore.instance();
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const selectedItems = core.getSelectedItems();
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if (selectedItems.length > 0) {
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core.copySelectedItems();
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console.log(`Copied ${selectedItems.length} items to clipboard`);
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return true;
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}
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console.log('No items selected to copy');
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return false;
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};
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/**
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* Handles paste operation based on current context
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* @returns {boolean} true if items were pasted, false if paste was not possible
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*/
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export const handlePasteOperation = (): boolean => {
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const core = KGCore.instance();
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const copiedItems = core.getCopiedItems();
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if (copiedItems.length === 0) {
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console.log('No items in clipboard to paste');
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return false;
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}
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// Get current store state
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const {
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selectedTrackId,
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showPianoRoll,
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activeRegionId,
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pasteRegionsAtTrack,
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pasteNotesToActiveRegion
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} = useProjectStore.getState();
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// Determine paste context and handle accordingly
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const hasRegions = copiedItems.some(item => item.getRootType() === 'KGRegion');
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const hasNotes = copiedItems.some(item => item.getRootType() === 'KGMidiNote');
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if (hasRegions && !hasNotes) {
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// Pasting regions - need selected track and playhead position
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if (selectedTrackId) {
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const playheadPosition = core.getPlayheadPosition();
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pasteRegionsAtTrack(selectedTrackId, playheadPosition);
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console.log(`Pasted ${copiedItems.length} regions at track ${selectedTrackId}, position ${playheadPosition}`);
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return true;
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} else {
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console.log('No track selected for pasting regions');
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return false;
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}
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} else if (hasNotes && !hasRegions) {
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// Pasting notes - only when piano roll is open
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if (showPianoRoll && activeRegionId) {
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// Use the active region's playhead position (could be different from global playhead)
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// For now, we'll use global playhead - this can be refined later
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const playheadPosition = core.getPlayheadPosition();
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pasteNotesToActiveRegion(activeRegionId, playheadPosition);
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console.log(`Pasted ${copiedItems.length} notes to active region ${activeRegionId}, position ${playheadPosition}`);
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return true;
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} else {
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console.log('Piano roll must be open to paste notes');
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return false;
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}
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} else if (hasRegions && hasNotes) {
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console.log('Mixed clipboard content (regions + notes) cannot be pasted');
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return false;
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}
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return false;
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}; |