Function execCommand

notes.js:2881–2921

(action, value)

        }

        function execCommand(action, value){
            if (action === 'fontSizePx') {
                // 限制字体大小最大为32px
                const sizeValue = parseInt(value);
                if (sizeValue > 32) {
                    value = '32px';
                }
                
                document.execCommand('fontSize', false, '7');
                const fontElements = document.getElementsByTagName('font');
                for (let i = 0; i < fontElements.length; i++) {
                    if (fontElements[i].size === '7') {
                        fontElements[i].removeAttribute('size');
                        fontElements[i].style.fontSize = value;
                    }
                }
                return;
            }
            if (action === 'insertHTML') {
                // 智能插入HTML内容，无论焦点是否在编辑器内都能正确插入
                insertHTMLAtCursor(value);
                // 如果插入的是图片容器，添加调整大小功能
                if (value.includes('nsn-resizable-img-container')) {
                    requestAnimationFrame(() => {
                        attachResizeListeners();
                    });
                }
                return;
            }
            if (action === 'foreColor' || action === 'backColor') {
                // 确保编辑器获得焦点
                editor.focus();
                document.execCommand(action, false, value);
                return;
            }
            if (action === 'createLink' || action === 'insertImage') {
                document.execCommand(action, false, value);
                return;
            }
            document.execCommand(action, false, null);
        }

        // 智能插入HTML内容的函数
        function insertHTMLAtCursor(html) {