[screenshots] progress bar

CHANGELOG.md

@@ -21,6 +21,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - not waiting for the categories file to be retrieved from the cloud during application boot ( reduces boot time )
     - caching cloud categories to the disk so they can be used in scenarios when it is not possible to retrieve them ( e.g: internet is off )
 - minor thread improvements
+
+### UI
+- Screenshots panel:
+    - "downloading" label replaced by a progress bar
     
 ### Fixes
 - application not initializing when there is no internet connection

bauh/gems/flatpak/controller.py

@@ -1,3 +1,4 @@
+import json
 import traceback
 from datetime import datetime
 from threading import Thread
@@ -279,11 +280,17 @@ class FlatpakManager(SoftwareManager):
         flatpak.run(str(pkg.id))
 
     def get_screenshots(self, pkg: SoftwarePackage) -> List[str]:
-        res = self.http_client.get_json('{}/apps/{}'.format(FLATHUB_API_URL, pkg.id))
+        screenshots_url = '{}/apps/{}'.format(FLATHUB_API_URL, pkg.id)
         urls = []
-        if res and res.get('screenshots'):
-            for s in res['screenshots']:
-                if s.get('imgDesktopUrl'):
-                    urls.append(s['imgDesktopUrl'])
+        try:
+            res = self.http_client.get_json(screenshots_url)
+
+            if res and res.get('screenshots'):
+                for s in res['screenshots']:
+                    if s.get('imgDesktopUrl'):
+                        urls.append(s['imgDesktopUrl'])
+
+        except json.decoder.JSONDecodeError:
+            self.context.logger.error("Could not decode json from '{}'".format(screenshots_url))
 
         return urls

bauh/view/qt/screenshots.py

@@ -4,12 +4,13 @@ from typing import List
 
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QIcon, QPixmap
-from PyQt5.QtWidgets import QDialog, QLabel, QPushButton, QToolBar, QVBoxLayout
+from PyQt5.QtWidgets import QDialog, QLabel, QPushButton, QToolBar, QVBoxLayout, QProgressBar, QApplication
 
 from bauh.api.abstract.cache import MemoryCache
 from bauh.api.http import HttpClient
 from bauh.view.qt import qt_utils
 from bauh.view.qt.components import new_spacer
+from bauh.view.qt.thread import AnimateProgress
 from bauh.view.qt.view_model import PackageView
 
 
@@ -28,6 +29,12 @@ class ScreenshotsDialog(QDialog):
         self.resize(1280, 720)
         self.i18n = i18n
         self.http_client = http_client
+        self.progress_bar = QProgressBar()
+        self.progress_bar.setMaximumHeight(10 if QApplication.instance().style().objectName().lower() == 'windows' else 6)
+        self.progress_bar.setTextVisible(False)
+        self.thread_progress = AnimateProgress()
+        self.thread_progress.signal_change.connect(self._update_progress)
+        self.thread_progress.start()
 
         # THERE ARE CRASHES WITH SOME RARE ICONS ( like insomnia ). IT CAN BE A QT BUG. IN THE MEANTIME, ONLY THE TYPE ICON WILL BE RENDERED
         #
@@ -52,7 +59,9 @@ class ScreenshotsDialog(QDialog):
 
         self.img_label = QLabel()
         self.img_label.setStyleSheet('QLabel { font-weight: bold; text-align: center }')
-        self.bottom_bar.addWidget(self.img_label)
+        self.ref_img_label = self.bottom_bar.addWidget(self.img_label)
+        self.ref_img_label.setVisible(False)
+        self.ref_progress_bar = self.bottom_bar.addWidget(self.progress_bar)
         self.bottom_bar.addWidget(new_spacer(50))
 
         self.bt_next = QPushButton(self.i18n['screenshots.bt_next.label'].capitalize())
@@ -69,6 +78,9 @@ class ScreenshotsDialog(QDialog):
 
         self._load_img()
 
+    def _update_progress(self, val: int):
+        self.progress_bar.setValue(val)
+
     def _load_img(self):
         if len(self.loaded_imgs) > self.img_idx:
             img = self.loaded_imgs[self.img_idx]
@@ -79,9 +91,15 @@ class ScreenshotsDialog(QDialog):
             else:
                 self.img_label.setText(img)
                 self.img.setPixmap(QPixmap())
+
+            self.thread_progress.stop = True
+            self.ref_progress_bar.setVisible(False)
+            self.ref_img_label.setVisible(True)
         else:
             self.img.setPixmap(QPixmap())
-            self.img_label.setText('...{}...'.format(self.i18n['screenshots,download.running']))
+            self.ref_img_label.setVisible(False)
+            self.ref_progress_bar.setVisible(True)
+            self.thread_progress.start()
 
         if len(self.screenshots) == 1:
             self.ref_bt_back.setVisible(False)