checkpoint. beginning download process

portable_computing_toolkit_installer/ui/downloader.py

@@ -1,18 +1,23 @@
 from pathlib import Path
 import webbrowser
+from queue import Queue, Empty
 
 from PyQt5 import QtCore, QtGui, QtNetwork, QtWebEngineWidgets, QtWidgets
 from PyQt5.uic import loadUi
 
 
 class Downloader(QtWidgets.QMainWindow):
-    def __init__(self, tool_name, tool_info, download_directory, parent = None, flags = None):
+
+    download_progress = QtCore.pyqtSignal(str, int, int)
+
+    def __init__(self, download_queue, install_ready, download_directory, parent = None, flags = None):
         super().__init__(parent, flags)
         loadUi(Path(__file__).parent / "downloader.ui", baseinstance = self)
         self.hide()
         #create an off-the-record profile, isolated from other Downloader objects
         new_page = QtWebEngineWidgets.QtWebEnginePage(QtWebEngineWidgets.QWebEngineProfile(self.web_view))
         self.web_view.setPage(new_page)
+        self._load_result = Queue(maxsize=1)
         #set application style and decorate pushbuttons
         self._style = QtWidgets.QApplication.instance().style()
         self.setWindowIcon(QtWidgets.QApplication.instance().windowIcon())
@@ -29,14 +34,10 @@ class Downloader(QtWidgets.QMainWindow):
         self.actionCancel.triggered.connect(self._cancel_manual_search)
         self.actionCancel_and_Open_Issue_on_Github.triggered.connect(self._cancel_manual_search_open_issue)
         #set attributes
-        self._tool_name = tool_name
-        self._tool_info = tool_info
+        self._download_queue = download_queue
+        self._install_ready = install_ready
         self._download_directory = download_directory
-        #name window from attribute
-        self.setWindowTitle(f"Find {self._tool_name}")
-        #get homepage from attributes and set home button to load it
-        self._home_page = tool_info["homepage"]
-        self.home_button.clicked.connect(lambda: self.web_view.load(QtCore.QUrl(self._home_page)))
+
 
     def _reload_becomes_stop(self):
         """Turns the reload button into a stop button.
@@ -86,15 +87,42 @@ class Downloader(QtWidgets.QMainWindow):
         self.web_view.load(QtCore.QUrl(self._home_page))
 
     def begin_auto_search(self):
-        pass
+        try:
+            tool_info = self._download_queue.get(timeout = 1)
+        except Empty:
+            QtCore.QThread.currentThread().quit()
+        else:
+            self._tool_name = tool_info["name"]
+            self._tool_info = tool_info
+            self._home_page = tool_info["homepage"]
+            #name window from attribute
+            self.setWindowTitle(f"Find {self._tool_name}")
+            #get homepage from attributes and set home button to load it
+            self.home_button.clicked.connect(lambda: self.web_view.load(QtCore.QUrl(self._home_page)))
+            self.web_view.loadFinished.connect()
 
-    def _download_file(self):
+        self._download_file(self._find_installer_url())
+
+    def _find_installer_url(self):
+        self.web_view.load(QtCore.QUrl(self._tool_info["page"]))
+        load_result = self._load_result.get()
+
+
+
+
+
+    def _download_file(self, url):
         pass
 
 class DownloadWorker(QtCore.QRunnable):
-    def __init__(self, tool_name, tool_info, download_directory):
+    def __init__(self, download_queue, install_ready, download_error, download_directory, wizard):
         super().__init__()
-        self._downloader = Downloader(tool_name, tool_info, download_directory)
+        self._download_queue = download_queue
+        self._install_ready = install_ready
+        self._download_directory = download_directory
+        self._wizard = wizard
 
     def run(self):
-        self._downloader.begin_auto_search()
+        downloader = Downloader(self.download_queue, self._install_ready, self._download_error, self._download_directory)
+        downloader.download_progress.connect(self._wizard.track_progress)
+        downloader.begin_auto_search()