import { createModuleLogger } from "./utils/LoggerUtils.js";
import { iconLoader, LAYERFORGE_TOOLS } from "./utils/IconLoader.js";
import { createCanvas } from "./utils/CommonUtils.js";
import { addStylesheet, getUrl } from "./utils/ResourceManager.js";
const log = createModuleLogger('CanvasLayersPanel');
export class CanvasLayersPanel {
constructor(canvas) {
this.canvas = canvas;
this.container = null;
this.layersContainer = null;
this.draggedElements = [];
this.dragInsertionLine = null;
this.isMultiSelecting = false;
this.lastSelectedIndex = -1;
this.handleLayerClick = this.handleLayerClick.bind(this);
this.handleDragStart = this.handleDragStart.bind(this);
this.handleDragOver = this.handleDragOver.bind(this);
this.handleDragEnd = this.handleDragEnd.bind(this);
this.handleDrop = this.handleDrop.bind(this);
// Preload icons
this.initializeIcons();
// Load CSS for layers panel
addStylesheet(getUrl('./css/layers_panel.css'));
log.info('CanvasLayersPanel initialized');
}
async initializeIcons() {
try {
await iconLoader.preloadToolIcons();
log.debug('Icons preloaded successfully');
}
catch (error) {
log.warn('Failed to preload icons, using fallbacks:', error);
}
}
createIconElement(toolName, size = 16) {
const iconContainer = document.createElement('div');
iconContainer.className = 'icon-container';
iconContainer.style.width = `${size}px`;
iconContainer.style.height = `${size}px`;
const icon = iconLoader.getIcon(toolName);
if (icon) {
if (icon instanceof HTMLImageElement) {
const img = icon.cloneNode();
img.style.width = `${size}px`;
img.style.height = `${size}px`;
iconContainer.appendChild(img);
}
else if (icon instanceof HTMLCanvasElement) {
const { canvas, ctx } = createCanvas(size, size);
if (ctx) {
ctx.drawImage(icon, 0, 0, size, size);
}
iconContainer.appendChild(canvas);
}
}
else {
// Fallback text
iconContainer.classList.add('fallback-text');
iconContainer.textContent = toolName.charAt(0).toUpperCase();
iconContainer.style.fontSize = `${size * 0.6}px`;
}
return iconContainer;
}
createVisibilityIcon(isVisible) {
if (isVisible) {
return this.createIconElement(LAYERFORGE_TOOLS.VISIBILITY, 16);
}
else {
// Create a "hidden" version of the visibility icon
const iconContainer = document.createElement('div');
iconContainer.className = 'icon-container visibility-hidden';
iconContainer.style.width = '16px';
iconContainer.style.height = '16px';
const icon = iconLoader.getIcon(LAYERFORGE_TOOLS.VISIBILITY);
if (icon) {
if (icon instanceof HTMLImageElement) {
const img = icon.cloneNode();
img.style.width = '16px';
img.style.height = '16px';
iconContainer.appendChild(img);
}
else if (icon instanceof HTMLCanvasElement) {
const { canvas, ctx } = createCanvas(16, 16);
if (ctx) {
ctx.globalAlpha = 0.3;
ctx.drawImage(icon, 0, 0, 16, 16);
}
iconContainer.appendChild(canvas);
}
}
else {
// Fallback
iconContainer.classList.add('fallback-text');
iconContainer.textContent = 'H';
iconContainer.style.fontSize = '10px';
}
return iconContainer;
}
}
createPanelStructure() {
this.container = document.createElement('div');
this.container.className = 'layers-panel';
this.container.tabIndex = 0; // Umożliwia fokus na panelu
this.container.innerHTML = `
`;
this.layersContainer = this.container.querySelector('#layers-container');
// Setup event listeners dla przycisków
this.setupControlButtons();
// Dodaj listener dla klawiatury, aby usuwanie działało z panelu
this.container.addEventListener('keydown', (e) => {
if (e.key === 'Delete' || e.key === 'Backspace') {
e.preventDefault();
e.stopPropagation();
this.deleteSelectedLayers();
}
});
log.debug('Panel structure created');
return this.container;
}
setupControlButtons() {
if (!this.container)
return;
const deleteBtn = this.container.querySelector('#delete-layer-btn');
// Add delete icon to button
if (deleteBtn) {
const deleteIcon = this.createIconElement(LAYERFORGE_TOOLS.DELETE, 16);
deleteBtn.appendChild(deleteIcon);
}
deleteBtn?.addEventListener('click', () => {
log.info('Delete layer button clicked');
this.deleteSelectedLayers();
});
// Initial button state update
this.updateButtonStates();
}
renderLayers() {
if (!this.layersContainer) {
log.warn('Layers container not initialized');
return;
}
// Wyczyść istniejącą zawartość
this.layersContainer.innerHTML = '';
// Usuń linię wstawiania jeśli istnieje
this.removeDragInsertionLine();
// Sortuj warstwy według zIndex (od najwyższej do najniższej)
const sortedLayers = [...this.canvas.layers].sort((a, b) => b.zIndex - a.zIndex);
sortedLayers.forEach((layer, index) => {
const layerElement = this.createLayerElement(layer, index);
if (this.layersContainer)
this.layersContainer.appendChild(layerElement);
});
log.debug(`Rendered ${sortedLayers.length} layers`);
}
createLayerElement(layer, index) {
const layerRow = document.createElement('div');
layerRow.className = 'layer-row';
layerRow.draggable = true;
layerRow.dataset.layerIndex = String(index);
const isSelected = this.canvas.canvasSelection.selectedLayers.includes(layer);
if (isSelected) {
layerRow.classList.add('selected');
}
// Ustawienie domyślnych właściwości jeśli nie istnieją
if (!layer.name) {
layer.name = this.ensureUniqueName(`Layer ${layer.zIndex + 1}`, layer);
}
else {
// Sprawdź unikalność istniejącej nazwy (np. przy duplikowaniu)
layer.name = this.ensureUniqueName(layer.name, layer);
}
layerRow.innerHTML = `
${layer.name}
`;
// Add visibility icon
const visibilityToggle = layerRow.querySelector('.layer-visibility-toggle');
if (visibilityToggle) {
const visibilityIcon = this.createVisibilityIcon(layer.visible);
visibilityToggle.appendChild(visibilityIcon);
}
const thumbnailContainer = layerRow.querySelector('.layer-thumbnail');
if (thumbnailContainer) {
this.generateThumbnail(layer, thumbnailContainer);
}
this.setupLayerEventListeners(layerRow, layer, index);
return layerRow;
}
generateThumbnail(layer, thumbnailContainer) {
if (!layer.image) {
thumbnailContainer.style.background = '#4a4a4a';
return;
}
const { canvas, ctx } = createCanvas(48, 48, '2d', { willReadFrequently: true });
if (!ctx)
return;
const scale = Math.min(48 / layer.image.width, 48 / layer.image.height);
const scaledWidth = layer.image.width * scale;
const scaledHeight = layer.image.height * scale;
// Wycentruj obraz
const x = (48 - scaledWidth) / 2;
const y = (48 - scaledHeight) / 2;
ctx.imageSmoothingEnabled = true;
ctx.imageSmoothingQuality = 'high';
ctx.drawImage(layer.image, x, y, scaledWidth, scaledHeight);
thumbnailContainer.appendChild(canvas);
}
setupLayerEventListeners(layerRow, layer, index) {
layerRow.addEventListener('mousedown', (e) => {
const nameElement = layerRow.querySelector('.layer-name');
if (nameElement && nameElement.classList.contains('editing')) {
return;
}
this.handleLayerClick(e, layer, index);
});
// --- PRAWY PRZYCISK: ODJAZNACZ LAYER ---
layerRow.addEventListener('contextmenu', (e) => {
e.preventDefault();
e.stopPropagation();
if (this.canvas.canvasSelection.selectedLayers.includes(layer)) {
const newSelection = this.canvas.canvasSelection.selectedLayers.filter((l) => l !== layer);
this.canvas.updateSelection(newSelection);
this.updateSelectionAppearance();
this.updateButtonStates();
}
});
layerRow.addEventListener('dblclick', (e) => {
e.preventDefault();
e.stopPropagation();
const nameElement = layerRow.querySelector('.layer-name');
if (nameElement) {
this.startEditingLayerName(nameElement, layer);
}
});
// Add visibility toggle event listener
const visibilityToggle = layerRow.querySelector('.layer-visibility-toggle');
if (visibilityToggle) {
visibilityToggle.addEventListener('click', (e) => {
e.preventDefault();
e.stopPropagation();
this.toggleLayerVisibility(layer);
});
}
layerRow.addEventListener('dragstart', (e) => this.handleDragStart(e, layer, index));
layerRow.addEventListener('dragover', this.handleDragOver.bind(this));
layerRow.addEventListener('dragend', this.handleDragEnd.bind(this));
layerRow.addEventListener('drop', (e) => this.handleDrop(e, index));
}
handleLayerClick(e, layer, index) {
const isCtrlPressed = e.ctrlKey || e.metaKey;
const isShiftPressed = e.shiftKey;
// Aktualizuj wewnętrzny stan zaznaczenia w obiekcie canvas
// Ta funkcja NIE powinna już wywoływać onSelectionChanged w panelu.
this.canvas.updateSelectionLogic(layer, isCtrlPressed, isShiftPressed, index);
// Aktualizuj tylko wygląd (klasy CSS), bez niszczenia DOM
this.updateSelectionAppearance();
this.updateButtonStates();
log.debug(`Layer clicked: ${layer.name}, selection count: ${this.canvas.canvasSelection.selectedLayers.length}`);
}
startEditingLayerName(nameElement, layer) {
const currentName = layer.name;
nameElement.classList.add('editing');
const input = document.createElement('input');
input.type = 'text';
input.value = currentName;
input.style.width = '100%';
nameElement.innerHTML = '';
nameElement.appendChild(input);
input.focus();
input.select();
const finishEditing = () => {
let newName = input.value.trim() || `Layer ${layer.zIndex + 1}`;
newName = this.ensureUniqueName(newName, layer);
layer.name = newName;
nameElement.classList.remove('editing');
nameElement.textContent = newName;
this.canvas.saveState();
log.info(`Layer renamed to: ${newName}`);
};
input.addEventListener('blur', finishEditing);
input.addEventListener('keydown', (e) => {
if (e.key === 'Enter') {
finishEditing();
}
else if (e.key === 'Escape') {
nameElement.classList.remove('editing');
nameElement.textContent = currentName;
}
});
}
ensureUniqueName(proposedName, currentLayer) {
const existingNames = this.canvas.layers
.filter((layer) => layer !== currentLayer)
.map((layer) => layer.name);
if (!existingNames.includes(proposedName)) {
return proposedName;
}
// Sprawdź czy nazwa już ma numerację w nawiasach
const match = proposedName.match(/^(.+?)\s*\((\d+)\)$/);
let baseName, startNumber;
if (match) {
baseName = match[1].trim();
startNumber = parseInt(match[2]) + 1;
}
else {
baseName = proposedName;
startNumber = 1;
}
// Znajdź pierwszą dostępną numerację
let counter = startNumber;
let uniqueName;
do {
uniqueName = `${baseName} (${counter})`;
counter++;
} while (existingNames.includes(uniqueName));
return uniqueName;
}
toggleLayerVisibility(layer) {
layer.visible = !layer.visible;
// If layer became invisible and is selected, deselect it
if (!layer.visible && this.canvas.canvasSelection.selectedLayers.includes(layer)) {
const newSelection = this.canvas.canvasSelection.selectedLayers.filter((l) => l !== layer);
this.canvas.updateSelection(newSelection);
}
this.canvas.render();
this.canvas.requestSaveState();
// Update the eye icon in the panel
this.renderLayers();
log.info(`Layer "${layer.name}" visibility toggled to: ${layer.visible}`);
}
deleteSelectedLayers() {
if (this.canvas.canvasSelection.selectedLayers.length === 0) {
log.debug('No layers selected for deletion');
return;
}
log.info(`Deleting ${this.canvas.canvasSelection.selectedLayers.length} selected layers`);
this.canvas.removeSelectedLayers();
this.renderLayers();
}
handleDragStart(e, layer, index) {
if (!this.layersContainer || !e.dataTransfer)
return;
const editingElement = this.layersContainer.querySelector('.layer-name.editing');
if (editingElement) {
e.preventDefault();
return;
}
// Jeśli przeciągana warstwa nie jest zaznaczona, zaznacz ją
if (!this.canvas.canvasSelection.selectedLayers.includes(layer)) {
this.canvas.updateSelection([layer]);
this.renderLayers();
}
this.draggedElements = [...this.canvas.canvasSelection.selectedLayers];
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/plain', '');
this.layersContainer.querySelectorAll('.layer-row').forEach((row, idx) => {
const sortedLayers = [...this.canvas.layers].sort((a, b) => b.zIndex - a.zIndex);
if (this.draggedElements.includes(sortedLayers[idx])) {
row.classList.add('dragging');
}
});
log.debug(`Started dragging ${this.draggedElements.length} layers`);
}
handleDragOver(e) {
e.preventDefault();
if (e.dataTransfer)
e.dataTransfer.dropEffect = 'move';
const layerRow = e.currentTarget;
const rect = layerRow.getBoundingClientRect();
const midpoint = rect.top + rect.height / 2;
const isUpperHalf = e.clientY < midpoint;
this.showDragInsertionLine(layerRow, isUpperHalf);
}
showDragInsertionLine(targetRow, isUpperHalf) {
this.removeDragInsertionLine();
const line = document.createElement('div');
line.className = 'drag-insertion-line';
if (isUpperHalf) {
line.style.top = '-1px';
}
else {
line.style.bottom = '-1px';
}
targetRow.style.position = 'relative';
targetRow.appendChild(line);
this.dragInsertionLine = line;
}
removeDragInsertionLine() {
if (this.dragInsertionLine) {
this.dragInsertionLine.remove();
this.dragInsertionLine = null;
}
}
handleDrop(e, targetIndex) {
e.preventDefault();
this.removeDragInsertionLine();
if (this.draggedElements.length === 0 || !(e.currentTarget instanceof HTMLElement))
return;
const rect = e.currentTarget.getBoundingClientRect();
const midpoint = rect.top + rect.height / 2;
const isUpperHalf = e.clientY < midpoint;
// Oblicz docelowy indeks
let insertIndex = targetIndex;
if (!isUpperHalf) {
insertIndex = targetIndex + 1;
}
// Użyj nowej, centralnej funkcji do przesuwania warstw
this.canvas.canvasLayers.moveLayers(this.draggedElements, { toIndex: insertIndex });
log.info(`Dropped ${this.draggedElements.length} layers at position ${insertIndex}`);
}
handleDragEnd(e) {
this.removeDragInsertionLine();
if (!this.layersContainer)
return;
this.layersContainer.querySelectorAll('.layer-row').forEach((row) => {
row.classList.remove('dragging');
});
this.draggedElements = [];
}
onLayersChanged() {
this.renderLayers();
}
updateSelectionAppearance() {
if (!this.layersContainer)
return;
const sortedLayers = [...this.canvas.layers].sort((a, b) => b.zIndex - a.zIndex);
const layerRows = this.layersContainer.querySelectorAll('.layer-row');
layerRows.forEach((row, index) => {
const layer = sortedLayers[index];
if (this.canvas.canvasSelection.selectedLayers.includes(layer)) {
row.classList.add('selected');
}
else {
row.classList.remove('selected');
}
});
}
/**
* Aktualizuje stan przycisków w zależności od zaznaczenia warstw
*/
updateButtonStates() {
if (!this.container)
return;
const deleteBtn = this.container.querySelector('#delete-layer-btn');
const hasSelectedLayers = this.canvas.canvasSelection.selectedLayers.length > 0;
if (deleteBtn) {
deleteBtn.disabled = !hasSelectedLayers;
deleteBtn.title = hasSelectedLayers
? `Delete ${this.canvas.canvasSelection.selectedLayers.length} selected layer(s)`
: 'No layers selected';
}
log.debug(`Button states updated - delete button ${hasSelectedLayers ? 'enabled' : 'disabled'}`);
}
/**
* Aktualizuje panel gdy zmieni się zaznaczenie (wywoływane z zewnątrz).
* Zamiast pełnego renderowania, tylko aktualizujemy wygląd.
*/
onSelectionChanged() {
this.updateSelectionAppearance();
this.updateButtonStates();
}
destroy() {
if (this.container && this.container.parentNode) {
this.container.parentNode.removeChild(this.container);
}
this.container = null;
this.layersContainer = null;
this.draggedElements = [];
this.removeDragInsertionLine();
log.info('CanvasLayersPanel destroyed');
}
}