Files
wled-screen-controller-mixed/server/src/wled_controller/static/js/features/pattern-templates.js
alexei.dolgolyov 9b2ccde8a7 Add card color system with wrapCard helper and reset support
Introduce localStorage-backed card color assignment for all card types
with a reusable wrapCard() helper that provides consistent card shell
structure (top actions, bottom actions with color picker). Move color
picker from top-right to bottom-right action bar. Add color reset
button to clear card color back to default.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-28 21:55:29 +03:00

834 lines
32 KiB
JavaScript

/**
* Pattern templates — cards, visual canvas editor, rect list, drag handlers.
*/
import {
patternEditorRects, setPatternEditorRects,
patternEditorSelectedIdx, setPatternEditorSelectedIdx,
patternEditorBgImage, setPatternEditorBgImage,
patternCanvasDragMode, setPatternCanvasDragMode,
patternCanvasDragStart, setPatternCanvasDragStart,
patternCanvasDragOrigRect, setPatternCanvasDragOrigRect,
patternEditorHoveredIdx, setPatternEditorHoveredIdx,
patternEditorHoverHit, setPatternEditorHoverHit,
PATTERN_RECT_COLORS,
PATTERN_RECT_BORDERS,
} from '../core/state.js';
import { API_BASE, getHeaders, fetchWithAuth, escapeHtml } from '../core/api.js';
import { t } from '../core/i18n.js';
import { showToast, showConfirm } from '../core/ui.js';
import { Modal } from '../core/modal.js';
import { getPictureSourceIcon, ICON_PATTERN_TEMPLATE, ICON_CLONE, ICON_EDIT } from '../core/icons.js';
import { wrapCard } from '../core/card-colors.js';
class PatternTemplateModal extends Modal {
constructor() {
super('pattern-template-modal');
}
snapshotValues() {
return {
name: document.getElementById('pattern-template-name').value,
description: document.getElementById('pattern-template-description').value,
rectangles: JSON.stringify(patternEditorRects),
};
}
onForceClose() {
setPatternEditorRects([]);
setPatternEditorSelectedIdx(-1);
setPatternEditorBgImage(null);
// Clean up ResizeObserver to prevent leaks
const canvas = document.getElementById('pattern-canvas');
if (canvas?._patternResizeObserver) {
canvas._patternResizeObserver.disconnect();
canvas._patternResizeObserver = null;
}
if (canvas) canvas._patternEventsAttached = false;
}
}
const patternModal = new PatternTemplateModal();
export function createPatternTemplateCard(pt) {
const rectCount = (pt.rectangles || []).length;
const desc = pt.description ? `<div class="template-description">${escapeHtml(pt.description)}</div>` : '';
return wrapCard({
type: 'template-card',
dataAttr: 'data-pattern-template-id',
id: pt.id,
removeOnclick: `deletePatternTemplate('${pt.id}')`,
removeTitle: t('common.delete'),
content: `
<div class="template-card-header">
<span class="template-name">${ICON_PATTERN_TEMPLATE} ${escapeHtml(pt.name)}</span>
</div>
${desc}
<div class="stream-card-props">
<span class="stream-card-prop">▭ ${rectCount} rect${rectCount !== 1 ? 's' : ''}</span>
</div>`,
actions: `
<button class="btn btn-icon btn-secondary" onclick="clonePatternTemplate('${pt.id}')" title="${t('common.clone')}">${ICON_CLONE}</button>
<button class="btn btn-icon btn-secondary" onclick="showPatternTemplateEditor('${pt.id}')" title="${t('common.edit')}">${ICON_EDIT}</button>`,
});
}
export async function showPatternTemplateEditor(templateId = null, cloneData = null) {
try {
// Load sources for background capture
const sourcesResp = await fetchWithAuth('/picture-sources').catch(() => null);
const sources = (sourcesResp && sourcesResp.ok) ? (await sourcesResp.json()).streams || [] : [];
const bgSelect = document.getElementById('pattern-bg-source');
bgSelect.innerHTML = '';
sources.forEach(s => {
const opt = document.createElement('option');
opt.value = s.id;
opt.textContent = s.name;
bgSelect.appendChild(opt);
});
setPatternEditorBgImage(null);
setPatternEditorSelectedIdx(-1);
setPatternCanvasDragMode(null);
if (templateId) {
const resp = await fetch(`${API_BASE}/pattern-templates/${templateId}`, { headers: getHeaders() });
if (!resp.ok) throw new Error('Failed to load pattern template');
const tmpl = await resp.json();
document.getElementById('pattern-template-id').value = tmpl.id;
document.getElementById('pattern-template-name').value = tmpl.name;
document.getElementById('pattern-template-description').value = tmpl.description || '';
document.getElementById('pattern-template-modal-title').innerHTML = `${ICON_PATTERN_TEMPLATE} ${t('pattern.edit')}`;
setPatternEditorRects((tmpl.rectangles || []).map(r => ({ ...r })));
} else if (cloneData) {
document.getElementById('pattern-template-id').value = '';
document.getElementById('pattern-template-name').value = (cloneData.name || '') + ' (Copy)';
document.getElementById('pattern-template-description').value = cloneData.description || '';
document.getElementById('pattern-template-modal-title').innerHTML = `${ICON_PATTERN_TEMPLATE} ${t('pattern.add')}`;
setPatternEditorRects((cloneData.rectangles || []).map(r => ({ ...r })));
} else {
document.getElementById('pattern-template-id').value = '';
document.getElementById('pattern-template-name').value = '';
document.getElementById('pattern-template-description').value = '';
document.getElementById('pattern-template-modal-title').innerHTML = `${ICON_PATTERN_TEMPLATE} ${t('pattern.add')}`;
setPatternEditorRects([]);
}
patternModal.snapshot();
renderPatternRectList();
renderPatternCanvas();
_attachPatternCanvasEvents();
patternModal.open();
document.getElementById('pattern-template-error').style.display = 'none';
setTimeout(() => document.getElementById('pattern-template-name').focus(), 100);
} catch (error) {
console.error('Failed to open pattern template editor:', error);
showToast(t('pattern.error.editor_open_failed'), 'error');
}
}
export function isPatternEditorDirty() {
return patternModal.isDirty();
}
export async function closePatternTemplateModal() {
await patternModal.close();
}
export function forceClosePatternTemplateModal() {
patternModal.forceClose();
}
export async function savePatternTemplate() {
const templateId = document.getElementById('pattern-template-id').value;
const name = document.getElementById('pattern-template-name').value.trim();
const description = document.getElementById('pattern-template-description').value.trim();
if (!name) {
patternModal.showError(t('pattern.error.required'));
return;
}
const payload = {
name,
rectangles: patternEditorRects.map(r => ({
name: r.name, x: r.x, y: r.y, width: r.width, height: r.height,
})),
description: description || null,
};
try {
let response;
if (templateId) {
response = await fetchWithAuth(`/pattern-templates/${templateId}`, {
method: 'PUT', body: JSON.stringify(payload),
});
} else {
response = await fetchWithAuth('/pattern-templates', {
method: 'POST', body: JSON.stringify(payload),
});
}
if (!response.ok) {
const err = await response.json();
throw new Error(err.detail || 'Failed to save');
}
showToast(templateId ? t('pattern.updated') : t('pattern.created'), 'success');
patternModal.forceClose();
// Use window.* to avoid circular import with targets.js
if (typeof window.loadTargetsTab === 'function') window.loadTargetsTab();
} catch (error) {
if (error.isAuth) return;
console.error('Error saving pattern template:', error);
patternModal.showError(error.message);
}
}
export async function clonePatternTemplate(templateId) {
try {
const resp = await fetchWithAuth(`/pattern-templates/${templateId}`);
if (!resp.ok) throw new Error('Failed to load pattern template');
const tmpl = await resp.json();
showPatternTemplateEditor(null, tmpl);
} catch (error) {
if (error.isAuth) return;
showToast(t('pattern.error.clone_failed'), 'error');
}
}
export async function deletePatternTemplate(templateId) {
const confirmed = await showConfirm(t('pattern.delete.confirm'));
if (!confirmed) return;
try {
const response = await fetchWithAuth(`/pattern-templates/${templateId}`, {
method: 'DELETE',
});
if (response.status === 409) {
showToast(t('pattern.delete.referenced'), 'error');
return;
}
if (response.ok) {
showToast(t('pattern.deleted'), 'success');
if (typeof window.loadTargetsTab === 'function') window.loadTargetsTab();
} else {
const error = await response.json();
showToast(t('pattern.error.delete_failed'), 'error');
}
} catch (error) {
if (error.isAuth) return;
showToast(t('pattern.error.delete_failed'), 'error');
}
}
// ----- Pattern rect list (precise coordinate inputs) -----
export function renderPatternRectList() {
const container = document.getElementById('pattern-rect-list');
if (!container) return;
if (patternEditorRects.length === 0) {
container.innerHTML = `<div class="kc-rect-empty">${t('pattern.rect.empty')}</div>`;
return;
}
container.innerHTML = patternEditorRects.map((rect, i) => `
<div class="pattern-rect-row${i === patternEditorSelectedIdx ? ' selected' : ''}" onclick="selectPatternRect(${i})">
<input type="text" value="${escapeHtml(rect.name)}" placeholder="${t('pattern.rect.name')}" onchange="updatePatternRect(${i}, 'name', this.value)" onclick="event.stopPropagation()">
<input type="number" value="${rect.x.toFixed(2)}" min="0" max="1" step="0.01" onchange="updatePatternRect(${i}, 'x', parseFloat(this.value)||0)" onclick="event.stopPropagation()">
<input type="number" value="${rect.y.toFixed(2)}" min="0" max="1" step="0.01" onchange="updatePatternRect(${i}, 'y', parseFloat(this.value)||0)" onclick="event.stopPropagation()">
<input type="number" value="${rect.width.toFixed(2)}" min="0.01" max="1" step="0.01" onchange="updatePatternRect(${i}, 'width', parseFloat(this.value)||0.01)" onclick="event.stopPropagation()">
<input type="number" value="${rect.height.toFixed(2)}" min="0.01" max="1" step="0.01" onchange="updatePatternRect(${i}, 'height', parseFloat(this.value)||0.01)" onclick="event.stopPropagation()">
<button type="button" class="pattern-rect-remove-btn" onclick="event.stopPropagation(); removePatternRect(${i})" title="${t('pattern.rect.remove')}">&#x2715;</button>
</div>
`).join('');
}
export function selectPatternRect(index) {
setPatternEditorSelectedIdx(patternEditorSelectedIdx === index ? -1 : index);
renderPatternRectList();
renderPatternCanvas();
}
export function updatePatternRect(index, field, value) {
if (index < 0 || index >= patternEditorRects.length) return;
patternEditorRects[index][field] = value;
// Clamp coordinates
if (field !== 'name') {
const r = patternEditorRects[index];
r.x = Math.max(0, Math.min(1 - r.width, r.x));
r.y = Math.max(0, Math.min(1 - r.height, r.y));
r.width = Math.max(0.01, Math.min(1, r.width));
r.height = Math.max(0.01, Math.min(1, r.height));
}
renderPatternCanvas();
}
export function addPatternRect() {
const name = `Zone ${patternEditorRects.length + 1}`;
// Inherit size from selected rect, or default to 30%
let w = 0.3, h = 0.3;
if (patternEditorSelectedIdx >= 0 && patternEditorSelectedIdx < patternEditorRects.length) {
const sel = patternEditorRects[patternEditorSelectedIdx];
w = sel.width;
h = sel.height;
}
const x = Math.min(0.5 - w / 2, 1 - w);
const y = Math.min(0.5 - h / 2, 1 - h);
patternEditorRects.push({ name, x: Math.max(0, x), y: Math.max(0, y), width: w, height: h });
setPatternEditorSelectedIdx(patternEditorRects.length - 1);
renderPatternRectList();
renderPatternCanvas();
}
export function deleteSelectedPatternRect() {
if (patternEditorSelectedIdx < 0 || patternEditorSelectedIdx >= patternEditorRects.length) return;
patternEditorRects.splice(patternEditorSelectedIdx, 1);
setPatternEditorSelectedIdx(-1);
renderPatternRectList();
renderPatternCanvas();
}
export function removePatternRect(index) {
patternEditorRects.splice(index, 1);
if (patternEditorSelectedIdx === index) setPatternEditorSelectedIdx(-1);
else if (patternEditorSelectedIdx > index) setPatternEditorSelectedIdx(patternEditorSelectedIdx - 1);
renderPatternRectList();
renderPatternCanvas();
}
// ----- Pattern Canvas Visual Editor -----
export function renderPatternCanvas() {
const canvas = document.getElementById('pattern-canvas');
if (!canvas) return;
const ctx = canvas.getContext('2d');
const w = canvas.width;
const h = canvas.height;
// Clear
ctx.clearRect(0, 0, w, h);
// Draw background image or grid
if (patternEditorBgImage) {
ctx.drawImage(patternEditorBgImage, 0, 0, w, h);
} else {
// Draw subtle grid
ctx.fillStyle = 'rgba(128,128,128,0.05)';
ctx.fillRect(0, 0, w, h);
ctx.strokeStyle = 'rgba(128,128,128,0.15)';
ctx.lineWidth = 1;
const dpr = window.devicePixelRatio || 1;
const gridStep = 80 * dpr;
const colsCount = Math.max(2, Math.round(w / gridStep));
const rowsCount = Math.max(2, Math.round(h / gridStep));
for (let gx = 0; gx <= colsCount; gx++) {
const x = Math.round(gx * w / colsCount) + 0.5;
ctx.beginPath(); ctx.moveTo(x, 0); ctx.lineTo(x, h); ctx.stroke();
}
for (let gy = 0; gy <= rowsCount; gy++) {
const y = Math.round(gy * h / rowsCount) + 0.5;
ctx.beginPath(); ctx.moveTo(0, y); ctx.lineTo(w, y); ctx.stroke();
}
}
// Draw rectangles
const dpr = window.devicePixelRatio || 1;
patternEditorRects.forEach((rect, i) => {
const rx = rect.x * w;
const ry = rect.y * h;
const rw = rect.width * w;
const rh = rect.height * h;
const colorIdx = i % PATTERN_RECT_COLORS.length;
const isSelected = (i === patternEditorSelectedIdx);
const isHovered = (i === patternEditorHoveredIdx) && !patternCanvasDragMode;
const isDragging = (i === patternEditorSelectedIdx) && !!patternCanvasDragMode;
// Fill
ctx.fillStyle = PATTERN_RECT_COLORS[colorIdx];
ctx.fillRect(rx, ry, rw, rh);
if (isHovered || isDragging) {
ctx.fillStyle = 'rgba(255,255,255,0.08)';
ctx.fillRect(rx, ry, rw, rh);
}
// Border
ctx.strokeStyle = PATTERN_RECT_BORDERS[colorIdx];
ctx.lineWidth = isSelected ? 3 : isHovered ? 2.5 : 1.5;
ctx.strokeRect(rx, ry, rw, rh);
// Edge highlight
let edgeDir = null;
if (isDragging && patternCanvasDragMode.startsWith('resize-')) {
edgeDir = patternCanvasDragMode.replace('resize-', '');
} else if (isHovered && patternEditorHoverHit && patternEditorHoverHit !== 'move') {
edgeDir = patternEditorHoverHit;
}
if (edgeDir) {
ctx.save();
ctx.strokeStyle = '#fff';
ctx.lineWidth = 3 * dpr;
ctx.shadowColor = 'rgba(76,175,80,0.7)';
ctx.shadowBlur = 6 * dpr;
ctx.beginPath();
if (edgeDir.includes('n')) { ctx.moveTo(rx, ry); ctx.lineTo(rx + rw, ry); }
if (edgeDir.includes('s')) { ctx.moveTo(rx, ry + rh); ctx.lineTo(rx + rw, ry + rh); }
if (edgeDir.includes('w')) { ctx.moveTo(rx, ry); ctx.lineTo(rx, ry + rh); }
if (edgeDir.includes('e')) { ctx.moveTo(rx + rw, ry); ctx.lineTo(rx + rw, ry + rh); }
ctx.stroke();
ctx.restore();
}
// Name label
ctx.fillStyle = '#fff';
ctx.font = `${12 * dpr}px sans-serif`;
ctx.shadowColor = 'rgba(0,0,0,0.7)';
ctx.shadowBlur = 3;
ctx.fillText(rect.name, rx + 4 * dpr, ry + 14 * dpr);
ctx.shadowBlur = 0;
// Delete button on hovered or selected rects (not during drag)
if ((isHovered || isSelected) && !patternCanvasDragMode) {
const btnR = 9 * dpr;
const btnCx = rx + rw - btnR - 2 * dpr;
const btnCy = ry + btnR + 2 * dpr;
ctx.beginPath();
ctx.arc(btnCx, btnCy, btnR, 0, Math.PI * 2);
ctx.fillStyle = 'rgba(0,0,0,0.6)';
ctx.fill();
ctx.strokeStyle = 'rgba(255,255,255,0.5)';
ctx.lineWidth = 1;
ctx.stroke();
const cross = btnR * 0.5;
ctx.beginPath();
ctx.moveTo(btnCx - cross, btnCy - cross);
ctx.lineTo(btnCx + cross, btnCy + cross);
ctx.moveTo(btnCx + cross, btnCy - cross);
ctx.lineTo(btnCx - cross, btnCy + cross);
ctx.strokeStyle = '#fff';
ctx.lineWidth = 1.5 * dpr;
ctx.stroke();
}
});
// Draw "add rectangle" placement buttons (4 corners + center) when not dragging
if (!patternCanvasDragMode) {
const abR = 12 * dpr;
const abMargin = 18 * dpr;
const addBtnPositions = [
{ cx: abMargin, cy: abMargin },
{ cx: w - abMargin, cy: abMargin },
{ cx: w / 2, cy: h / 2 },
{ cx: abMargin, cy: h - abMargin },
{ cx: w - abMargin, cy: h - abMargin },
];
addBtnPositions.forEach(pos => {
ctx.beginPath();
ctx.arc(pos.cx, pos.cy, abR, 0, Math.PI * 2);
ctx.fillStyle = 'rgba(255,255,255,0.10)';
ctx.fill();
ctx.strokeStyle = 'rgba(255,255,255,0.25)';
ctx.lineWidth = 1;
ctx.stroke();
const pl = abR * 0.5;
ctx.beginPath();
ctx.moveTo(pos.cx - pl, pos.cy);
ctx.lineTo(pos.cx + pl, pos.cy);
ctx.moveTo(pos.cx, pos.cy - pl);
ctx.lineTo(pos.cx, pos.cy + pl);
ctx.strokeStyle = 'rgba(255,255,255,0.5)';
ctx.lineWidth = 1.5 * dpr;
ctx.stroke();
});
}
}
// Placement button positions (relative 0-1 coords for where the new rect is anchored)
const _ADD_BTN_ANCHORS = [
{ ax: 0, ay: 0 },
{ ax: 1, ay: 0 },
{ ax: 0.5, ay: 0.5 },
{ ax: 0, ay: 1 },
{ ax: 1, ay: 1 },
];
function _hitTestAddButtons(mx, my, w, h) {
const dpr = window.devicePixelRatio || 1;
const abR = 12 * dpr;
const abMargin = 18 * dpr;
const positions = [
{ cx: abMargin, cy: abMargin },
{ cx: w - abMargin, cy: abMargin },
{ cx: w / 2, cy: h / 2 },
{ cx: abMargin, cy: h - abMargin },
{ cx: w - abMargin, cy: h - abMargin },
];
for (let i = 0; i < positions.length; i++) {
const dx = mx - positions[i].cx, dy = my - positions[i].cy;
if (dx * dx + dy * dy <= (abR + 3 * dpr) * (abR + 3 * dpr)) return i;
}
return -1;
}
function _addRectAtAnchor(anchorIdx) {
const anchor = _ADD_BTN_ANCHORS[anchorIdx];
const name = `Zone ${patternEditorRects.length + 1}`;
let rw = 0.3, rh = 0.3;
if (patternEditorSelectedIdx >= 0 && patternEditorSelectedIdx < patternEditorRects.length) {
const sel = patternEditorRects[patternEditorSelectedIdx];
rw = sel.width;
rh = sel.height;
}
let rx = anchor.ax - rw * anchor.ax;
let ry = anchor.ay - rh * anchor.ay;
rx = Math.max(0, Math.min(1 - rw, rx));
ry = Math.max(0, Math.min(1 - rh, ry));
patternEditorRects.push({ name, x: rx, y: ry, width: rw, height: rh });
setPatternEditorSelectedIdx(patternEditorRects.length - 1);
renderPatternRectList();
renderPatternCanvas();
}
// Hit-test a point against a rect's edges/corners.
const _EDGE_THRESHOLD = 8;
function _hitTestRect(mx, my, r, w, h) {
const rx = r.x * w, ry = r.y * h, rw = r.width * w, rh = r.height * h;
const dpr = window.devicePixelRatio || 1;
const thr = _EDGE_THRESHOLD * dpr;
const nearLeft = Math.abs(mx - rx) <= thr;
const nearRight = Math.abs(mx - (rx + rw)) <= thr;
const nearTop = Math.abs(my - ry) <= thr;
const nearBottom = Math.abs(my - (ry + rh)) <= thr;
const inHRange = mx >= rx - thr && mx <= rx + rw + thr;
const inVRange = my >= ry - thr && my <= ry + rh + thr;
if (nearTop && nearLeft && inHRange && inVRange) return 'nw';
if (nearTop && nearRight && inHRange && inVRange) return 'ne';
if (nearBottom && nearLeft && inHRange && inVRange) return 'sw';
if (nearBottom && nearRight && inHRange && inVRange) return 'se';
if (nearTop && inHRange) return 'n';
if (nearBottom && inHRange) return 's';
if (nearLeft && inVRange) return 'w';
if (nearRight && inVRange) return 'e';
if (mx >= rx && mx <= rx + rw && my >= ry && my <= ry + rh) return 'move';
return null;
}
const _DIR_CURSORS = {
'nw': 'nwse-resize', 'se': 'nwse-resize',
'ne': 'nesw-resize', 'sw': 'nesw-resize',
'n': 'ns-resize', 's': 'ns-resize',
'e': 'ew-resize', 'w': 'ew-resize',
'move': 'grab',
};
function _hitTestDeleteButton(mx, my, rect, w, h) {
const dpr = window.devicePixelRatio || 1;
const btnR = 9 * dpr;
const rx = rect.x * w, ry = rect.y * h, rw = rect.width * w;
const btnCx = rx + rw - btnR - 2 * dpr;
const btnCy = ry + btnR + 2 * dpr;
const dx = mx - btnCx, dy = my - btnCy;
return (dx * dx + dy * dy) <= (btnR + 2 * dpr) * (btnR + 2 * dpr);
}
function _patternCanvasDragMove(e) {
if (!patternCanvasDragMode || patternEditorSelectedIdx < 0) return;
const canvas = document.getElementById('pattern-canvas');
const w = canvas.width;
const h = canvas.height;
const canvasRect = canvas.getBoundingClientRect();
const scaleX = w / canvasRect.width;
const scaleY = h / canvasRect.height;
const mx = (e.clientX - canvasRect.left) * scaleX;
const my = (e.clientY - canvasRect.top) * scaleY;
const dx = (mx - patternCanvasDragStart.mx) / w;
const dy = (my - patternCanvasDragStart.my) / h;
const orig = patternCanvasDragOrigRect;
const r = patternEditorRects[patternEditorSelectedIdx];
if (patternCanvasDragMode === 'move') {
r.x = Math.max(0, Math.min(1 - r.width, orig.x + dx));
r.y = Math.max(0, Math.min(1 - r.height, orig.y + dy));
} else if (patternCanvasDragMode.startsWith('resize-')) {
const dir = patternCanvasDragMode.replace('resize-', '');
let nx = orig.x, ny = orig.y, nw = orig.width, nh = orig.height;
if (dir.includes('w')) { nx = orig.x + dx; nw = orig.width - dx; }
if (dir.includes('e')) { nw = orig.width + dx; }
if (dir.includes('n')) { ny = orig.y + dy; nh = orig.height - dy; }
if (dir.includes('s')) { nh = orig.height + dy; }
if (nw < 0.02) { nw = 0.02; if (dir.includes('w')) nx = orig.x + orig.width - 0.02; }
if (nh < 0.02) { nh = 0.02; if (dir.includes('n')) ny = orig.y + orig.height - 0.02; }
nx = Math.max(0, Math.min(1 - nw, nx));
ny = Math.max(0, Math.min(1 - nh, ny));
nw = Math.min(1, nw);
nh = Math.min(1, nh);
r.x = nx; r.y = ny; r.width = nw; r.height = nh;
}
renderPatternCanvas();
}
function _patternCanvasDragEnd(e) {
window.removeEventListener('mousemove', _patternCanvasDragMove);
window.removeEventListener('mouseup', _patternCanvasDragEnd);
setPatternCanvasDragMode(null);
setPatternCanvasDragStart(null);
setPatternCanvasDragOrigRect(null);
// Recalculate hover at current mouse position
const canvas = document.getElementById('pattern-canvas');
if (canvas) {
const w = canvas.width;
const h = canvas.height;
const canvasRect = canvas.getBoundingClientRect();
const scaleX = w / canvasRect.width;
const scaleY = h / canvasRect.height;
const mx = (e.clientX - canvasRect.left) * scaleX;
const my = (e.clientY - canvasRect.top) * scaleY;
let cursor = 'default';
let newHoverIdx = -1;
let newHoverHit = null;
if (e.clientX >= canvasRect.left && e.clientX <= canvasRect.right &&
e.clientY >= canvasRect.top && e.clientY <= canvasRect.bottom) {
for (let i = patternEditorRects.length - 1; i >= 0; i--) {
const hit = _hitTestRect(mx, my, patternEditorRects[i], w, h);
if (hit) {
cursor = _DIR_CURSORS[hit] || 'default';
newHoverIdx = i;
newHoverHit = hit;
break;
}
}
}
canvas.style.cursor = cursor;
setPatternEditorHoveredIdx(newHoverIdx);
setPatternEditorHoverHit(newHoverHit);
}
renderPatternRectList();
renderPatternCanvas();
}
function _attachPatternCanvasEvents() {
const canvas = document.getElementById('pattern-canvas');
if (!canvas || canvas._patternEventsAttached) return;
canvas._patternEventsAttached = true;
canvas.addEventListener('mousedown', _patternCanvasMouseDown);
canvas.addEventListener('mousemove', _patternCanvasMouseMove);
canvas.addEventListener('mouseleave', _patternCanvasMouseLeave);
// Touch support
canvas.addEventListener('touchstart', (e) => {
e.preventDefault();
const touch = e.touches[0];
_patternCanvasMouseDown(_touchToMouseEvent(canvas, touch, 'mousedown'));
}, { passive: false });
canvas.addEventListener('touchmove', (e) => {
e.preventDefault();
const touch = e.touches[0];
if (patternCanvasDragMode) {
_patternCanvasDragMove({ clientX: touch.clientX, clientY: touch.clientY });
} else {
_patternCanvasMouseMove(_touchToMouseEvent(canvas, touch, 'mousemove'));
}
}, { passive: false });
canvas.addEventListener('touchend', () => {
if (patternCanvasDragMode) {
window.removeEventListener('mousemove', _patternCanvasDragMove);
window.removeEventListener('mouseup', _patternCanvasDragEnd);
setPatternCanvasDragMode(null);
setPatternCanvasDragStart(null);
setPatternCanvasDragOrigRect(null);
setPatternEditorHoveredIdx(-1);
setPatternEditorHoverHit(null);
renderPatternRectList();
renderPatternCanvas();
}
});
// Resize observer
const container = canvas.parentElement;
if (container && typeof ResizeObserver !== 'undefined') {
const ro = new ResizeObserver(() => {
const rect = container.getBoundingClientRect();
const dpr = window.devicePixelRatio || 1;
canvas.width = Math.round(rect.width * dpr);
canvas.height = Math.round(rect.height * dpr);
renderPatternCanvas();
});
ro.observe(container);
canvas._patternResizeObserver = ro;
}
}
function _touchToMouseEvent(canvas, touch, type) {
const rect = canvas.getBoundingClientRect();
return { type, offsetX: touch.clientX - rect.left, offsetY: touch.clientY - rect.top, preventDefault: () => {} };
}
function _patternCanvasMouseDown(e) {
const canvas = document.getElementById('pattern-canvas');
const w = canvas.width;
const h = canvas.height;
const rect = canvas.getBoundingClientRect();
const scaleX = w / rect.width;
const scaleY = h / rect.height;
const mx = (e.offsetX !== undefined ? e.offsetX : e.clientX - rect.left) * scaleX;
const my = (e.offsetY !== undefined ? e.offsetY : e.clientY - rect.top) * scaleY;
// Check delete button on hovered or selected rects first
for (const idx of [patternEditorHoveredIdx, patternEditorSelectedIdx]) {
if (idx >= 0 && idx < patternEditorRects.length) {
if (_hitTestDeleteButton(mx, my, patternEditorRects[idx], w, h)) {
patternEditorRects.splice(idx, 1);
if (patternEditorSelectedIdx === idx) setPatternEditorSelectedIdx(-1);
else if (patternEditorSelectedIdx > idx) setPatternEditorSelectedIdx(patternEditorSelectedIdx - 1);
setPatternEditorHoveredIdx(-1);
setPatternEditorHoverHit(null);
renderPatternRectList();
renderPatternCanvas();
return;
}
}
}
// Test all rects; selected rect takes priority so it stays interactive
// even when overlapping with others.
const selIdx = patternEditorSelectedIdx;
const testOrder = [];
if (selIdx >= 0 && selIdx < patternEditorRects.length) testOrder.push(selIdx);
for (let i = patternEditorRects.length - 1; i >= 0; i--) {
if (i !== selIdx) testOrder.push(i);
}
for (const i of testOrder) {
const r = patternEditorRects[i];
const hit = _hitTestRect(mx, my, r, w, h);
if (!hit) continue;
setPatternEditorSelectedIdx(i);
setPatternCanvasDragStart({ mx, my });
setPatternCanvasDragOrigRect({ ...r });
if (hit === 'move') {
setPatternCanvasDragMode('move');
canvas.style.cursor = 'grabbing';
} else {
setPatternCanvasDragMode(`resize-${hit}`);
canvas.style.cursor = _DIR_CURSORS[hit] || 'default';
}
// Capture mouse at window level for drag
window.addEventListener('mousemove', _patternCanvasDragMove);
window.addEventListener('mouseup', _patternCanvasDragEnd);
e.preventDefault();
renderPatternRectList();
renderPatternCanvas();
return;
}
// Check placement "+" buttons (corners + center)
const addIdx = _hitTestAddButtons(mx, my, w, h);
if (addIdx >= 0) {
_addRectAtAnchor(addIdx);
return;
}
// Click on empty space — deselect
setPatternEditorSelectedIdx(-1);
setPatternCanvasDragMode(null);
canvas.style.cursor = 'default';
renderPatternRectList();
renderPatternCanvas();
}
function _patternCanvasMouseMove(e) {
if (patternCanvasDragMode) return;
const canvas = document.getElementById('pattern-canvas');
const w = canvas.width;
const h = canvas.height;
const rect = canvas.getBoundingClientRect();
const scaleX = w / rect.width;
const scaleY = h / rect.height;
const mx = (e.offsetX !== undefined ? e.offsetX : e.clientX - rect.left) * scaleX;
const my = (e.offsetY !== undefined ? e.offsetY : e.clientY - rect.top) * scaleY;
let cursor = 'default';
let newHoverIdx = -1;
let newHoverHit = null;
// Selected rect takes priority for hover so edges stay reachable under overlaps
const selIdx = patternEditorSelectedIdx;
const hoverOrder = [];
if (selIdx >= 0 && selIdx < patternEditorRects.length) hoverOrder.push(selIdx);
for (let i = patternEditorRects.length - 1; i >= 0; i--) {
if (i !== selIdx) hoverOrder.push(i);
}
for (const i of hoverOrder) {
const hit = _hitTestRect(mx, my, patternEditorRects[i], w, h);
if (hit) {
cursor = _DIR_CURSORS[hit] || 'default';
newHoverIdx = i;
newHoverHit = hit;
break;
}
}
canvas.style.cursor = cursor;
if (newHoverIdx !== patternEditorHoveredIdx || newHoverHit !== patternEditorHoverHit) {
setPatternEditorHoveredIdx(newHoverIdx);
setPatternEditorHoverHit(newHoverHit);
renderPatternCanvas();
}
}
function _patternCanvasMouseLeave() {
if (patternCanvasDragMode) return;
if (patternEditorHoveredIdx !== -1) {
setPatternEditorHoveredIdx(-1);
setPatternEditorHoverHit(null);
renderPatternCanvas();
}
}
export async function capturePatternBackground() {
const sourceId = document.getElementById('pattern-bg-source').value;
if (!sourceId) {
showToast(t('pattern.source_for_bg.none'), 'error');
return;
}
try {
const resp = await fetch(`${API_BASE}/picture-sources/${sourceId}/test`, {
method: 'POST',
headers: getHeaders(),
body: JSON.stringify({ capture_duration: 0 }),
});
if (!resp.ok) throw new Error('Failed to capture');
const data = await resp.json();
if (data.full_capture && data.full_capture.full_image) {
const img = new Image();
img.onload = () => {
setPatternEditorBgImage(img);
renderPatternCanvas();
};
img.src = data.full_capture.full_image;
}
} catch (error) {
console.error('Failed to capture background:', error);
showToast(t('pattern.error.capture_bg_failed'), 'error');
}
}