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HotPlaylist.py
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HotPlaylist.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2023/02/22
@author: Irony
@site: https://pyqt.site https://github.com/PyQt5
@email: 892768447@qq.com
@file: HotPlaylist.py
@description:
"""
import os
import sys
from Lib.CoverItemWidget import CoverItemWidget
from Lib.flowlayout import FlowLayout # @UnresolvedImport
from lxml.etree import HTML # @UnresolvedImport
try:
from PyQt5.QtCore import Qt, QTimer, QUrl, pyqtSignal
from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkRequest
from PyQt5.QtSvg import QSvgWidget
from PyQt5.QtWidgets import (QAbstractSlider, QApplication, QScrollArea,
QWidget)
except ImportError:
from PySide2.QtCore import Qt, QTimer, QUrl, pyqtSignal
from PySide2.QtNetwork import QNetworkAccessManager, QNetworkRequest
from PySide2.QtSvg import QSvgWidget
from PySide2.QtWidgets import (QAbstractSlider, QApplication, QScrollArea,
QWidget)
# offset=0,35,70,105
Url = "https://music.163.com/discover/playlist/?order=hot&cat=%E5%85%A8%E9%83%A8&limit=35&offset={0}"
Agent = b"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.50"
Referer = b"https://music.163.com"
# 作者
Actor = '''<a href="{href}" target="_blank" title="{title}" style="text-decoration: none;font-size: 12px;color: #999999;">{title}</a> '''
class GridWidget(QWidget):
Page = 0
loadStarted = pyqtSignal(bool)
def __init__(self, *args, **kwargs):
super(GridWidget, self).__init__(*args, **kwargs)
self._layout = FlowLayout(self) # 使用自定义流式布局
# 异步网络下载管理器
self._manager = QNetworkAccessManager(self)
self._manager.finished.connect(self.onFinished)
def load(self):
if self.Page == -1 or self.Page > 10:
return
self.loadStarted.emit(True)
# 延迟一秒后调用目的在于显示进度条
QTimer.singleShot(1000, self._load)
def _load(self):
print("load url:", Url.format(self.Page * 35))
url = QUrl(Url.format(self.Page * 35))
req = QNetworkRequest(url)
req.setRawHeader(b"User-Agent", Agent)
self._manager.get(req)
def onFinished(self, reply):
# 请求完成后会调用该函数
req = reply.request() # 获取请求
iwidget = req.attribute(QNetworkRequest.User + 1, None)
path = req.attribute(QNetworkRequest.User + 2, None)
html = reply.readAll().data()
reply.deleteLater()
del reply
if iwidget and path and html:
# 这里是图片下载完毕
open(path, "wb").write(html)
iwidget.setCover(path)
return
# 解析网页
self._parseHtml(html)
self.loadStarted.emit(False)
def _parseHtml(self, html):
# print(html)
# encoding = chardet.detect(html) or {}
# html = html.decode(encoding.get("encoding","utf-8"))
html = HTML(html)
# 查找所有的li list_item
lis = html.xpath("//ul[@id='m-pl-container']/li")
# print(lis)
if not lis:
self.Page = -1 # 后面没有页面了
return
self.Page += 1
self._makeItem(lis)
def _makeItem(self, lis):
for li in lis:
a = li.find('.//div/a')
play_url = "https://music.163.com" + a.get("href") # 歌单播放地址
img = li.find(".//div/img")
cover_url = img.get("src") # 封面图片
playlist_title = a.get("title") # 歌单名
# 歌手
author_info = li.xpath(".//p[2]/a")[0]
playlist_author = "<span style=\"font-size: 12px;\"作者：{}</span>".format(
Actor.format(href="https://music.163.com" +
author_info.get("href"),
title=author_info.get("title")))
# 播放数
play_count = (li.xpath(".//div/div/span[2]/text()") or [""])[0]
path = "cache/{0}.jpg".format(
os.path.splitext(os.path.basename(cover_url).split('?')[0])[0])
cover_path = "Data/pic_v.png"
if os.path.isfile(path):
cover_path = path
# print(cover_path, playlist_title,
# playlist_author, play_count, play_url, cover_url, path)
iwidget = CoverItemWidget(self, manager=self._manager)
iwidget.init(cover_path, playlist_title, playlist_author,
play_count, play_url, cover_url, path)
self._layout.addWidget(iwidget)
class Window(QScrollArea):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.setFrameShape(self.NoFrame)
self.setWidgetResizable(True)
self.setAlignment(Qt.AlignCenter)
self._loadStart = False
# 网格窗口
self._widget = GridWidget(self)
self._widget.loadStarted.connect(self.setLoadStarted)
self.setWidget(self._widget)
# 连接竖着的滚动条滚动事件
self.verticalScrollBar().actionTriggered.connect(self.onActionTriggered)
# 进度条
self.loadWidget = QSvgWidget(self,
minimumHeight=120,
minimumWidth=120,
visible=False)
self.loadWidget.load('Data/Svg_icon_loading.svg')
def setLoadStarted(self, started):
self._loadStart = started
self.loadWidget.setVisible(started)
def onActionTriggered(self, action):
# 这里要判断action=QAbstractSlider.SliderMove，可以避免窗口大小改变的问题
# 同时防止多次加载同一个url
if action != QAbstractSlider.SliderMove or self._loadStart:
return
# 使用sliderPosition获取值可以同时满足鼠标滑动和拖动判断
if self.verticalScrollBar().sliderPosition() == self.verticalScrollBar(
).maximum():
# 可以下一页了
self._widget.load()
def resizeEvent(self, event):
super(Window, self).resizeEvent(event)
self.loadWidget.setGeometry(
int((self.width() - self.loadWidget.minimumWidth()) / 2),
int((self.height() - self.loadWidget.minimumHeight()) / 2),
self.loadWidget.minimumWidth(), self.loadWidget.minimumHeight())
if __name__ == "__main__":
os.makedirs("cache", exist_ok=True)
app = QApplication(sys.argv)
w = Window()
w.show()
w._widget.load()
sys.exit(app.exec_())