mirror of
https://github.com/pgadmin-org/pgadmin4.git
synced 2025-02-25 18:55:31 -06:00
38ff104cb9
This runtime implements a brower control with embedded Python interpretor. The Python interpretor runs a simple script at startup to generate some HTML that is displayed in the browser. Arbitrary URLs can be opened from the "Open URL" option on the File menu.
132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
//////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// pgAdmin 4 - PostgreSQL Tools
|
|
//
|
|
// Copyright (C) 2013, The pgAdmin Development Team
|
|
// This software is released under the PostgreSQL Licence
|
|
//
|
|
// BrowserWindow.cpp - Implementation of the main window class
|
|
//
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
// Must be before QT
|
|
#include <Python.h>
|
|
|
|
#include <QtGlobal>
|
|
|
|
#if QT_VERSION >= 0x050000
|
|
#include <QtWidgets>
|
|
#include <QtWebKitWidgets>
|
|
#else
|
|
#include <QtWebKit>
|
|
#include <QAction>
|
|
#include <QMenu>
|
|
#include <QMenuBar>
|
|
#include <QMessageBox>
|
|
#include <QInputDialog>
|
|
#include <QLineEdit>
|
|
#endif
|
|
|
|
#include "BrowserWindow.h"
|
|
|
|
// Constructor
|
|
BrowserWindow::BrowserWindow()
|
|
{
|
|
createActions();
|
|
createMenus();
|
|
|
|
// Create the WebKit control
|
|
webView = new QWebView(this);
|
|
setCentralWidget(webView);
|
|
|
|
// Execute some python and set the web text
|
|
QString data = execPython(tr("from time import time,ctime\n"
|
|
"print 'Today is <b>%s</b><br /><i>This is python-generated HTML.</i>' % ctime(time())\n"));
|
|
|
|
webView->setHtml(data);
|
|
}
|
|
|
|
// Create the actions for the window
|
|
void BrowserWindow::createActions()
|
|
{
|
|
// Open an arbitrary URL
|
|
openUrlAction = new QAction(tr("&Open URL..."), this);
|
|
openUrlAction->setShortcut(tr("Ctrl+U"));
|
|
openUrlAction->setStatusTip(tr("Open a URL"));
|
|
connect(openUrlAction, SIGNAL(triggered()), this, SLOT(openUrl()));
|
|
|
|
// Exit the app
|
|
exitAction = new QAction(tr("E&xit"), this);
|
|
exitAction->setStatusTip(tr("Exit the application"));
|
|
exitAction->setShortcuts(QKeySequence::Quit);
|
|
connect(exitAction, SIGNAL(triggered()), this, SLOT(close()));
|
|
|
|
// About box
|
|
aboutAction = new QAction(tr("&About"), this);
|
|
aboutAction->setStatusTip(tr("Show the application's About box"));
|
|
connect(aboutAction, SIGNAL(triggered()), this, SLOT(about()));
|
|
}
|
|
|
|
// Create the application menus
|
|
void BrowserWindow::createMenus()
|
|
{
|
|
// File
|
|
fileMenu = menuBar()->addMenu(tr("&File"));
|
|
fileMenu->addAction(openUrlAction);
|
|
fileMenu->addSeparator();
|
|
fileMenu->addAction(exitAction);
|
|
|
|
menuBar()->addSeparator();
|
|
|
|
// Help
|
|
helpMenu = menuBar()->addMenu(tr("&Help"));
|
|
helpMenu->addAction(aboutAction);
|
|
}
|
|
|
|
// Display the about box
|
|
void BrowserWindow::about()
|
|
{
|
|
QMessageBox::about(this, tr("About pgAdmin 4"), tr("pgAdmin 4 - PostgreSQL Tools"));
|
|
}
|
|
|
|
// Open an arbitrary URL
|
|
void BrowserWindow::openUrl()
|
|
{
|
|
bool ok;
|
|
QString url = QInputDialog::getText(this, tr("Enter a URL"), tr("URL:"), QLineEdit::Normal, "http://", &ok);
|
|
|
|
if (ok && !url.isEmpty())
|
|
webView->setUrl(url);
|
|
}
|
|
|
|
QString BrowserWindow::execPython(QString script)
|
|
{
|
|
// This python script allows us to capture stdout/stderr
|
|
QString stdOutErr =
|
|
tr("import sys\n\
|
|
class CatchStdoutStderr:\n\
|
|
def __init__(self):\n\
|
|
self.op = ''\n\
|
|
def write(self, txt):\n\
|
|
self.op += txt\n\
|
|
catchStdoutStderr = CatchStdoutStderr()\n\
|
|
sys.stdout = catchStdoutStderr\n\
|
|
sys.stderr = catchStdoutStderr\n\
|
|
");
|
|
|
|
// Create the main module, and call the redirect code.
|
|
PyObject *pModule = PyImport_AddModule("__main__");
|
|
PyRun_SimpleString(stdOutErr.toUtf8().constData());
|
|
|
|
// Now execute the actual script
|
|
PyRun_SimpleString(script.toUtf8().constData());
|
|
|
|
// Get the catcher object
|
|
PyObject *catcher = PyObject_GetAttrString(pModule,"catchStdoutStderr");
|
|
PyErr_Print();
|
|
|
|
PyObject *output = PyObject_GetAttrString(catcher,"op");
|
|
|
|
return QString(PyString_AsString(output));
|
|
}
|