Function isInputElement

entrypoints/content.ts:743–759

* 检查元素是否为输入元素

(element: HTMLElement)

 * 检查元素是否为输入元素
 */
function isInputElement(element: HTMLElement): boolean {
    if (!element) return false;
    
    const tagName = element.tagName.toLowerCase();
    const isInput = tagName === 'input';
    const isTextarea = tagName === 'textarea';
    const isContentEditable = element.contentEditable === 'true';
    
    // 对于input元素，还需要检查type属性
    if (isInput) {
        const inputType = (element as HTMLInputElement).type.toLowerCase();
        const textInputTypes = ['text', 'search', 'url', 'email', 'password'];
        return textInputTypes.includes(inputType);
    }
    
    return isTextarea || isContentEditable;
}

/**
 * 获取输入框中的文本