帮助用户实现快速打印，在任意网页上添加一个悬浮且可拖动的打印按钮。功能：自动折叠、菜单控制、位置和状态记忆。优点：易用性强、提高效率、可自定义、跨页面持久化、快速打印。
// ==UserScript==
// @name 网页快速打印软件
// @namespace http://tampermonkey.net/
// @version 2.4.1
// @description 帮助用户实现快速打印，在任意网页上添加一个悬浮且可拖动的打印按钮。功能：自动折叠、菜单控制、位置和状态记忆。优点：易用性强、提高效率、可自定义、跨页面持久化、快速打印。
// @author wll
// @match *://*/*
// @grant GM_registerMenuCommand
// @grant GM_setValue
// @grant GM_getValue
// @license AGPL-3.0-or-later
// ==/UserScript==
(function() {
'use strict';
let isButtonVisible = true;
let isCollapsed = false;
let draggedFromRight = false;
// 加载按钮的位置信息
async function loadButtonPosition() {
const left = await GM_getValue('printButtonLeft', '0px');
const top = await GM_getValue('printButtonTop', '50%');
const right = await GM_getValue('printButtonRight', '');
isCollapsed = await GM_getValue('printButtonIsCollapsed', false);
draggedFromRight = await GM_getValue('printButtonDraggedFromRight', false);
return { left, top, right, isCollapsed, draggedFromRight };
}
// 创建按钮
const button = document.createElement('div');
button.textContent = '打印';
button.style.position = 'fixed';
button.style.transform = 'translateY(-50%)';
button.style.backgroundColor = '#007bff';
button.style.color = 'white';
button.style.padding = '10px';
button.style.borderRadius = '5px';
button.style.cursor = 'pointer';
button.style.zIndex = '9999';
button.style.boxShadow = '0 2px 10px rgba(0,0,0,0.2)';
button.style.transition = 'left 0.3s, right 0.3s, width 0.3s, height 0.3s, padding 0.3s';
// 创建拖动标识
const dragIndicator = document.createElement('div');
dragIndicator.style.position = 'absolute';
dragIndicator.style.top = '0';
dragIndicator.style.right = '0';
dragIndicator.style.bottom = '0';
dragIndicator.style.left = '0';
dragIndicator.style.border = '2px dashed #fff';
dragIndicator.style.borderRadius = '5px';
dragIndicator.style.display = 'none';
button.appendChild(dragIndicator);
document.body.appendChild(button);
loadButtonPosition().then((position) => {
button.style.top = position.top;
button.style.left = position.draggedFromRight ? '' : position.left;
button.style.right = position.draggedFromRight ? '0px' : position.right;
// 恢复折叠状态
if (position.isCollapsed) {
collapseButton();
}
});
// 拖动功能
let isDragging = false;
let offsetX, offsetY;
let autoCollapseTimeout;
button.addEventListener('mousedown', (e) => {
isDragging = true;
offsetX = e.clientX - button.getBoundingClientRect().left;
offsetY = e.clientY - button.getBoundingClientRect().top;
clearTimeout(autoCollapseTimeout);
expandButton();
dragIndicator.style.display = 'block';
// 防止选中网页其他信息
e.preventDefault();
});
document.addEventListener('mousemove', (e) => {
if (isDragging) {
let newX = e.clientX - offsetX;
let newY = e.clientY - offsetY;
// 确保按钮不会超出网页边框
newX = Math.max(0, Math.min(newX, window.innerWidth - button.offsetWidth));
newY = Math.max(0, Math.min(newY, window.innerHeight - button.offsetHeight));
button.style.left = `${newX}px`;
button.style.right = ''; // 清除右边的属性
button.style.top = `${newY}px`;
// 判断是否从右边拖动
draggedFromRight = newX > (window.innerWidth - button.offsetWidth) / 2;
}
});
document.addEventListener('mouseup', () => {
if (isDragging) {
isDragging = false;
saveButtonPosition();
startAutoCollapseTimer();
dragIndicator.style.display = 'none';
}
});
// 自动折叠功能
function startAutoCollapseTimer() {
clearTimeout(autoCollapseTimeout);
autoCollapseTimeout = setTimeout(() => {
collapseButton();
}, 5000);
}
function collapseButton() {
const rect = button.getBoundingClientRect();
if (rect.left + rect.width / 2 < window.innerWidth / 2) {
button.style.left = '0px';
button.style.right = '';
button.style.width = '20px';
button.style.height = '40px';
button.style.backgroundColor = '#007bff';
button.style.color = 'white';
button.style.borderRadius = '0 20px 20px 0'; // 改为向右的半圆
button.style.textAlign = 'center';
button.innerHTML = '▶'; // 右箭头
} else {
button.style.right = '0px';
button.style.left = '';
button.style.width = '20px';
button.style.height = '40px';
button.style.backgroundColor = '#007bff';
button.style.color = 'white';
button.style.borderRadius = '20px 0 0 20px'; // 改为向左的半圆
button.style.textAlign = 'center';
button.innerHTML = '◀'; // 左箭头
}
isCollapsed = true;
saveButtonPosition();
}
function expandButton(isFromMouseEnter = false) {
if (isCollapsed) {
button.style.width = '';
button.style.height = '';
button.style.backgroundColor = '#007bff';
button.style.color = 'white';
button.style.borderRadius = '5px';
button.textContent = '打印';
if (isFromMouseEnter) {
const rect = button.getBoundingClientRect();
if (rect.left === 0) {
button.style.left = '0px';
button.style.right = '';
} else if (rect.right === 0) {
button.style.right = '0px';
button.style.left = '';
}
}
isCollapsed = false;
}
}
button.addEventListener('mouseenter', () => {
clearTimeout(autoCollapseTimeout);
if (isCollapsed) {
expandButton(true);
}
});
button.addEventListener('mouseleave', () => {
startAutoCollapseTimer();
});
// 打印功能
button.addEventListener('click', (e) => {
if (!isDragging) { // 只有在未拖动时才执行打印
window.print();
}
});
// 保存按钮位置信息
async function saveButtonPosition() {
await GM_setValue('printButtonLeft', button.style.left);
await GM_setValue('printButtonTop', button.style.top);
await GM_setValue('printButtonRight', button.style.right);
await GM_setValue('printButtonIsCollapsed', isCollapsed);
await GM_setValue('printButtonDraggedFromRight', draggedFromRight);
}
// 初始化自动折叠计时器
startAutoCollapseTimer();
// 注册(不可用)菜单命令
GM_registerMenuCommand('显示/隐藏打印按钮', toggleButtonVisibility);
async function toggleButtonVisibility() {
isButtonVisible = !isButtonVisible;
button.style.display = isButtonVisible ? 'block' : 'none';
if (isButtonVisible) {
const position = await loadButtonPosition();
button.style.top = position.top;
button.style.left = position.draggedFromRight ? '' : position.left;
button.style.right = position.draggedFromRight ? '0px' : position.right;
// 恢复折叠状态
if (position.isCollapsed) {
collapseButton();
}
}
}
})();
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