Function _bindStatsMessageOnce

focus.js:371–425

()

                    border: '0', borderRadius: '0', display: 'block', background: '#fff',
                    overflow: 'auto', WebkitOverflowScrolling: 'touch',
                    position: 'relative', zIndex: '1', visibility: 'hidden',
                });
            } else {
                Object.assign(iframe.style, {
                    width: '100%', height: '100%', minHeight: '0',
                    border: '0', borderRadius: '12px', display: 'block', background: 'transparent',
                    position: 'relative', zIndex: '1', visibility: 'hidden',
                });
            }

            closeBtn.style.visibility = 'visible';

            dialog.appendChild(loadingLayer);
            dialog.appendChild(iframe);
            dialog.appendChild(dragArea);
            dialog.appendChild(closeBtn);
            document.body.appendChild(dialog);
            self._statsIframe = iframe;
            self._initDraggable(dialog, dragArea, closeBtn);
            self._bindStatsMessageOnce();

            iframe.onload = function () {
                clearTimeout(loadTimer);
                loadingLayer.style.display = 'none';
                iframe.style.visibility = 'visible';
                if (!isMobile()) {
                    dialog.style.height = HB_STATS_PANEL_H;
                    dialog.style.maxHeight = HB_STATS_PANEL_H;
                }
                // iframe 加载完成后派发合成 mouseup，避免拖拽中 iframe 覆盖鼠标导致拖拽状态残留
                document.body.style.userSelect = '';
                document.dispatchEvent(new MouseEvent('mouseup', { bubbles: true }));
            };

            /* 超时检测：20 秒未加载完成则显示错误提示 */
            const loadTimer = setTimeout(function () {
                if (loadingLayer.style.display === 'none') return;
                spinner.style.display = 'none';
                loadingText.textContent = '连接失败，请稍后重试';
                loadingText.style.fontSize = '15px';
                loadingText.style.color = '#e74c3c';
                const retryBtn = document.createElement('button');
                retryBtn.textContent = '重新加载';
                retryBtn.style.cssText = 'margin-top:12px;padding:6px 18px;border:1px solid #17a2b8;border-radius:6px;background:#17a2b8;color:#fff;font-size:13px;cursor:pointer;font-family:inherit;';
                retryBtn.onclick = function () {
                    loadingText.textContent = '加载中…';
                    loadingText.style.fontSize = '14px';
                    loadingText.style.color = '#666';
                    retryBtn.remove();
                    spinner.style.display = '';
                    iframe.style.visibility = 'hidden';
                    iframe.src = self.hbServiceBase + '/hotspot_stats.html?embed=1&t=' + Date.now();
                };
                loadingLayer.appendChild(retryBtn);
            }, 20000);

            iframe.src = self.hbServiceBase + '/hotspot_stats.html?embed=1';
        },