#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright (C) 2018 Andy Stewart
#
# Author:     Andy Stewart <lazycat.manatee@gmail.com>
# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
#
# 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 <http://www.gnu.org/licenses/>.

from PyQt5 import QtCore
from PyQt5.QtCore import QUrl, Qt
from PyQt5.QtGui import QColor
from PyQt5.QtWebKitWidgets import QWebView, QWebPage
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebKit import QWebSettings
from buffer import Buffer

class BrowserBuffer(Buffer):
    def __init__(self, buffer_id, url, width, height):
        Buffer.__init__(self, buffer_id, url, width, height, QColor(255, 255, 255, 255))

        self.buffer_widget = BrowserWidget()
        self.buffer_widget.resize(self.width, self.height)
        self.buffer_widget.setUrl(QUrl(url))

        self.buffer_widget.titleChanged.connect(self.change_title)
        self.buffer_widget.web_page.open_url_in_new_tab.connect(self.open_url)

        print("Create buffer: %s" % buffer_id)

    def resize_buffer(self, width, height):
        self.width = width
        self.height = height
        self.buffer_widget.resize(self.width, self.height)

class BrowserWidget(QWebView):

    def __init__(self):
        super(QWebView, self).__init__()

        self.web_page = WebPage()
        self.setPage(self.web_page)

        self.settings().setAttribute(QWebSettings.PluginsEnabled, True)
        self.settings().setAttribute(QWebSettings.JavascriptEnabled, True)
        self.settings().setAttribute(QWebSettings.JavascriptCanOpenWindows, True)

class WebPage(QWebPage):

    open_url_in_new_tab = QtCore.pyqtSignal(str)

    def __init__(self):
        super(WebPage, self).__init__()

    def acceptNavigationRequest(self, frame, request, type):
        modifiers = QApplication.keyboardModifiers()

        # Handle myself if got user event.
        if type == QWebPage.NavigationTypeLinkClicked:
            if modifiers == Qt.ControlModifier:
                self.open_url_in_new_tab.emit(request.url().toString())
            else:
                self.view().load(request.url())

            # Return False to stop default behavior.
            return False

        # # Otherwise, use default behavior.
        return QWebPage.acceptNavigationRequest(self, frame, request, type)

    def javaScriptConsoleMessage(self, msg, lineNumber, sourceID):
        pass