#!/usr/bin/env python3 # -*- coding: utf-8 -*- # Copyright (C) 2018 Andy Stewart # # Author: Andy Stewart # Maintainer: Andy Stewart # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from PyQt5 import QtCore from PyQt5 import QtWebEngineWidgets from PyQt5.QtCore import QUrl, Qt from PyQt5.QtCore import Qt, QEvent, QPointF, QEventLoop, QVariant, QTimer from PyQt5.QtGui import QColor from PyQt5.QtWidgets import QApplication, QWidget class BrowserView(QtWebEngineWidgets.QWebEngineView): open_url_in_new_tab = QtCore.pyqtSignal(str) def __init__(self): super(QtWebEngineWidgets.QWebEngineView, self).__init__() self.installEventFilter(self) self.web_page = BrowserPage() self.setPage(self.web_page) self.event_widgets = [] def event(self, event): if event.type() == QEvent.ChildAdded: obj = event.child() if isinstance(obj, QWidget): obj.installEventFilter(self) self.event_widgets.append(obj) return QtWebEngineWidgets.QWebEngineView.event(self, event) def eventFilter(self, obj, event): if event.type() == QEvent.MouseButtonRelease: hit = self.web_page.hitTestContent(event.pos()) clicked_url = hit.linkUrl() base_url = hit.baseUrl() if clicked_url != base_url and clicked_url != '': result = "" if 'http://' in clicked_url or 'https://' in clicked_url: result = clicked_url elif clicked_url == "#": result = base_url + clicked_url else: result = "http://" + base_url.split("/")[2] + clicked_url modifiers = QApplication.keyboardModifiers() if modifiers != Qt.ControlModifier: # Load url in current tab. self.setUrl(QUrl(result)) else: # Load url in new tab if user press ctrl modifier. self.open_url_in_new_tab.emit(result) return True event.accept() return True return super(QtWebEngineWidgets.QWebEngineView, self).eventFilter(obj, event) class BrowserPage(QtWebEngineWidgets.QWebEnginePage): def __init__(self): QtWebEngineWidgets.QWebEnginePage.__init__(self) def hitTestContent(self, pos): return WebHitTestResult(self, pos) def mapToViewport(self, pos): return QPointF(pos.x(), pos.y()) def executeJavaScript(self, scriptSrc): self.loop = QEventLoop() self.result = QVariant() QTimer.singleShot(250, self.loop.quit) self.runJavaScript(scriptSrc, self.callbackJS) self.loop.exec_() self.loop = None return self.result def callbackJS(self, res): if self.loop is not None and self.loop.isRunning(): self.result = res self.loop.quit() class WebHitTestResult(): def __init__(self, page, pos): self.page = page self.pos = pos self.m_linkUrl = self.page.url().toString() self.m_baseUrl = self.page.url().toString() self.viewportPos = self.page.mapToViewport(self.pos) self.source = """(function() { let e = document.elementFromPoint(%1, %2); if (!e) return; function isMediaElement(e) { return e.tagName == 'AUDIO' || e.tagName == 'VIDEO'; }; function isEditableElement(e) { if (e.isContentEditable) return true; if (e.tagName === 'INPUT' || e.tagName === 'TEXTAREA') return e.getAttribute('readonly') != 'readonly'; return false; }; function isSelected(e) { let selection = window.getSelection(); if (selection.type !== 'Range') return false; return window.getSelection().containsNode(e, true); }; let res = { baseUrl: document.baseURI, alternateText: e.getAttribute('alt'), boundingRect: '', imageUrl: '', contentEditable: isEditableElement(e), contentSelected: isSelected(e), linkTitle: '', linkUrl: '', mediaUrl: '', tagName: e.tagName.toLowerCase() }; let r = e.getBoundingClientRect(); res.boundingRect = [r.top, r.left, r.width, r.height]; if (e.tagName == 'IMG') res.imageUrl = e.getAttribute('src'); if (e.tagName == 'A') { res.linkTitle = e.text; res.linkUrl = e.getAttribute('href'); } while (e) { if (res.linkTitle === '' && e.tagName === 'A') { res.linkTitle = e.text; if(res.linkUrl === '') { res.linkUrl = e.getAttribute('href'); } } if (res.mediaUrl === '' && isMediaElement(e)) { res.mediaUrl = e.currentSrc; res.mediaPaused = e.paused; res.mediaMuted = e.muted; } e = e.parentElement; } return res; })()""" self.js = self.source.replace("%1", str(self.viewportPos.x())).replace("%2", str(self.viewportPos.y())) self.dic = self.page.executeJavaScript(self.js) if self.dic is None: return self.m_isNull = False self.m_baseUrl = self.dic["baseUrl"] self.m_alternateText = self.dic["alternateText"] self.m_imageUrl = self.dic["imageUrl"] self.m_isContentEditable = self.dic["contentEditable"] self.m_isContentSelected = self.dic["contentSelected"] self.m_linkTitle = self.dic["linkTitle"] self.m_linkUrl = self.dic["linkUrl"] self.m_mediaUrl = self.dic["mediaUrl"] try: self.m_mediaPaused = self.dic["mediaPaused"] self.m_mediaMuted = self.dic["mediaMuted"] except: pass self.m_tagName = self.dic["tagName"] def linkUrl(self): return self.m_linkUrl def isContentEditable(self): return self.m_isContentEditable def isContentSelected(self): return self.m_isContentSelected def imageUrl(self): try: return self.m_imageUrl except: return "" def mediaUrl(self): return self.m_mediaUrl def baseUrl(self): return self.m_baseUrl def updateWithContextMenuData(self, data): if data.isValid(): pass else: return self.m_linkTitle = data.linkText() self.m_linkUrl = data.linkUrl().toString() self.m_isContentEditable = data.isContentEditable() if data.selectedText() == "": self.m_isContentSelected = False else: self.m_isContentSelected = True if data.mediaType() == QWebEngineContextMenuData.MediaTypeImage: self.m_imageUrl = data.mediaUrl().toString() elif data.mediaType() == QWebEngineContextMenuData.MediaTypeAudio or data.mediaType() == QWebEngineContextMenuData.MediaTypeVideo: self.m_mediaUrl = data.mediaUrl().toString() def webview_scroll(webview, scroll_direction, scroll_type): line_offset = 10 page_offset = 100 if scroll_type == "page": if scroll_direction == "up": webview.buffer_widget.web_page.runJavaScript("window.scrollBy({0}, {1});".format(0, page_offset)); else: webview.buffer_widget.web_page.runJavaScript("window.scrollBy({0}, {1});".format(0, -page_offset)); else: if scroll_direction == "up": webview.buffer_widget.web_page.runJavaScript("window.scrollBy({0}, {1});".format(0, line_offset)); else: webview.buffer_widget.web_page.runJavaScript("window.scrollBy({0}, {1});".format(0, -line_offset));