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`;
document.body.appendChild(overlay);
document.body.appendChild(panel);
// 事件绑定
panel.querySelector('.xld-close').addEventListener('click', closePanel);
panel.querySelector('#xld-scan-btn').addEventListener('click', startScan);
panel.querySelector('#xld-download-btn').addEventListener('click', downloadAll);
panel.querySelector('#xld-clear-marker-btn').addEventListener('click', clearMarker);
panel.querySelector('#xld-init-btn').addEventListener('click', initMarker);
panel.querySelector('#xld-init-select-btn').addEventListener('click', () => enterSelectMode('marker'));
panel.querySelector('#xld-select-marker-btn').addEventListener('click', () => enterSelectMode('marker'));
panel.querySelector('#xld-select-resume-btn').addEventListener('click', () => enterSelectMode('resume'));
panel.querySelector('#xld-clear-resume-btn').addEventListener('click', clearResumePoint);
const modeButtons = panel.querySelectorAll('.xld-mode-btn');
modeButtons.forEach(button => {
button.addEventListener('click', () => {
const mode = button.dataset.mode || 'marker';
GM_setValue('downloadMode', mode);
updateModeDisplay();
});
});
const savedMode = GM_getValue('downloadMode', 'marker');
updateModeToggle(savedMode);
const limitInput = panel.querySelector('#xld-download-limit');
if (limitInput) {
const savedLimit = GM_getValue('downloadLimit', 200);
limitInput.value = Number.isFinite(savedLimit) && savedLimit > 0 ? savedLimit : 200;
limitInput.addEventListener('change', () => {
const value = parseInt(limitInput.value, 10);
const normalized = Number.isFinite(value) && value > 0 ? value : 200;
limitInput.value = normalized;
GM_setValue('downloadLimit', normalized);
});
}
const safeModeCheckbox = panel.querySelector('#xld-safe-mode');
if (safeModeCheckbox) {
safeModeCheckbox.checked = GM_getValue('safeMode', false);
safeModeCheckbox.addEventListener('change', () => {
GM_setValue('safeMode', safeModeCheckbox.checked);
});
}
const autoPauseCheckbox = panel.querySelector('#xld-auto-pause');
if (autoPauseCheckbox) {
autoPauseCheckbox.checked = GM_getValue('autoPause', true);
autoPauseCheckbox.addEventListener('change', () => {
GM_setValue('autoPause', autoPauseCheckbox.checked);
});
}
const preloadBufferInput = panel.querySelector('#xld-preload-buffer');
if (preloadBufferInput) {
const savedBuffer = GM_getValue('preloadBuffer', 50);
preloadBufferInput.value = Number.isFinite(savedBuffer) && savedBuffer >= 0 ? savedBuffer : 50;
preloadBufferInput.addEventListener('change', () => {
const value = parseInt(preloadBufferInput.value, 10);
const normalized = Number.isFinite(value) && value >= 0 ? value : 50;
preloadBufferInput.value = normalized;
GM_setValue('preloadBuffer', normalized);
});
}
// 初始化显示
updateModeDisplay();
return { overlay, panel };
}
let panelElements = null;
function openPanel() {
if (!panelElements) {
panelElements = createPanel();
}
panelElements.overlay.classList.add('active');
panelElements.panel.classList.add('active');
}
document.addEventListener('visibilitychange', () => {
updateForegroundWarning();
});
function closePanel() {
if (panelElements) {
panelElements.overlay.classList.remove('active');
panelElements.panel.classList.remove('active');
}
}
function ensureForegroundWarning() {
if (foregroundWarningEl) return;
foregroundWarningEl = document.createElement('div');
foregroundWarningEl.className = 'xld-foreground-warning';
document.body.appendChild(foregroundWarningEl);
}
function showForegroundWarning(message) {
ensureForegroundWarning();
if (!foregroundWarningEl.dataset.ready) {
foregroundWarningEl.innerHTML = `