Improved user feedback when downloading covers

installer/windows/calibre/calibre.mpi

@@ -273,7 +273,6 @@ File ::C49805D2-C0B8-01C4-DF6F-674D9C0BFD15 -name IM_MOD_RL_viff_.dll -parent 8E
 File ::1B9F2F00-20A5-B207-5A80-8F75470286AD -name txt2lrf.exe.local -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::826F1915-9F97-59DD-6637-3EEC0744A79C -name IM_MOD_RL_ps2_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::519A6618-8A1F-93A5-93B4-6EEF5A4A3DE9 -name comic2pdf.exe -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
-File ::B0CEAA35-52BF-0DE0-BAC7-7B23157E29BD -name isbndb.exe -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::A5F23791-BCDC-A997-4941-5D1F2F227E6D -name type.xml -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::0A1C107A-C0AA-3ED6-4F37-A6894386DCBE -name IM_MOD_RL_ps3_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::EEBA64E7-6509-EBAF-3E23-1A203216F39A -name epub2lrf.exe -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
@@ -284,7 +283,6 @@ File ::EA37C1C2-57BB-4E7A-C004-0010D79142C2 -name IM_MOD_RL_fits_.dll -parent 8E
 File ::05F5C10D-6988-F1F4-A486-86C96DB20302 -name pywintypes26.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::0137A2B1-EB94-EB26-7295-0C7CD941A1DF -name IM_MOD_RL_histogram_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::7F199A1F-4FA4-2ABA-DED3-36ECF3C089CA -name epub2lrf.exe.local -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
-File ::F9F112C9-B61B-E041-1A9D-47641B047135 -name isbndb.exe.local -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::CF6398D8-2140-53CF-1DA6-421A82E92621 -name any2epub.exe -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::8DFA6C69-360D-FA63-7FF9-860E3DB00B19 -name any2lrf.exe.local -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::5BB7579D-9183-412C-81F8-B411B07C57B3 -name IM_MOD_RL_pnm_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
@@ -544,6 +542,8 @@ File ::325F545D-30A8-08DA-74F0-AC1244F6C1D9 -name IM_MOD_RL_vid_.dll -parent 8E5
 File ::24238371-77D0-0A8F-35D1-498A5FCC1B0D -name IM_MOD_RL_rla_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::6F5D62F3-5E63-0753-364C-01CAAF1002E0 -name IM_MOD_RL_magick_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 File ::9FDAC308-5D4F-A865-A09A-9FBF48162A47 -name IM_MOD_RL_djvu_.dll -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
+File ::5D748040-5973-EFF1-41FC-B424636C642E -name fetch-ebook-metadata.exe.local -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
+File ::8B8655B8-3823-AA02-1CDA-02F5AD4677C0 -name fetch-ebook-metadata.exe -parent 8E5D85A4-7608-47A1-CF7C-309060D5FF40
 Component ::F6829AB7-9F66-4CEE-CA0E-21F54C6D3609 -setup Install -active Yes -platforms {AIX-ppc FreeBSD-4-x86 FreeBSD-x86 HPUX-hppa Linux-x86 Solaris-sparc Windows} -name Main -parent Components
 SetupType ::D9ADE41C-B744-690C-2CED-CF826BF03D2E -setup Install -active Yes -platforms {AIX-ppc FreeBSD-4-x86 FreeBSD-x86 HPUX-hppa Linux-x86 Solaris-sparc Windows} -name Typical -parent SetupTypes
 

src/calibre/gui2/dialogs/fetch_metadata.py

@@ -8,10 +8,11 @@ import time
 
 from PyQt4.QtCore import Qt, QObject, SIGNAL, QVariant, QThread, \
                          QAbstractTableModel, QCoreApplication, QTimer
-from PyQt4.QtGui import QDialog, QItemSelectionModel, QWidget, QLabel, QMovie
+from PyQt4.QtGui import QDialog, QItemSelectionModel
 
 from calibre.gui2.dialogs.fetch_metadata_ui import Ui_FetchMetadata
 from calibre.gui2 import error_dialog, NONE, info_dialog, warning_dialog
+from calibre.gui2.widgets import ProgressIndicator
 from calibre.utils.config import prefs
 
 class Fetcher(QThread):
@@ -30,40 +31,6 @@ class Fetcher(QThread):
                                                self.publisher, self.isbn, 
                                                self.key if self.key else None)
 
-class ProgressIndicator(QWidget):
-    
-    def __init__(self, *args):
-        QWidget.__init__(self, *args)
-        self.setGeometry(0, 0, 300, 350)
-        self.movie = QMovie(':/images/jobs-animated.mng')
-        self.ml = QLabel(self)
-        self.ml.setMovie(self.movie)
-        self.movie.start()
-        self.movie.setPaused(True)
-        self.status = QLabel(self)
-        self.status.setWordWrap(True)
-        self.status.setAlignment(Qt.AlignHCenter|Qt.AlignTop)
-        self.status.font().setBold(True)
-        self.status.font().setPointSize(self.font().pointSize()+6)
-        self.setVisible(False)
-        
-    def start(self, msg=''):
-        view = self.parent()
-        pwidth, pheight = view.size().width(), view.size().height()
-        self.resize(pwidth, min(pheight, 250))
-        self.move(0, (pheight-self.size().height())/2.)
-        self.ml.resize(self.ml.sizeHint())
-        self.ml.move(int((self.size().width()-self.ml.size().width())/2.), 0)
-        self.status.resize(self.size().width(), self.size().height()-self.ml.size().height()-10)
-        self.status.move(0, self.ml.size().height()+10)
-        self.status.setText(msg)
-        self.setVisible(True)
-        self.movie.setPaused(False)
-        
-    def stop(self):
-        if self.movie.state() == self.movie.Running:
-            self.movie.setPaused(True)
-            self.setVisible(False)
            
 class Matches(QAbstractTableModel):
     
@@ -173,7 +140,7 @@ class FetchMetadata(QDialog, Ui_FetchMetadata):
         self._hangcheck = QTimer(self)
         self.connect(self._hangcheck, SIGNAL('timeout()'), self.hangcheck)
         self.start_time = time.time()
-        self._hangcheck.start()
+        self._hangcheck.start(100)
         
     def hangcheck(self):
         if not (self.fetcher.isFinished() or time.time() - self.start_time > 75):

src/calibre/gui2/dialogs/metadata_single.py

@@ -4,9 +4,9 @@ __copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
 The dialog used to edit meta information for a book as well as 
 add/remove formats
 '''
-import os
+import os, time, traceback
 
-from PyQt4.QtCore import SIGNAL, QObject, QCoreApplication, Qt
+from PyQt4.QtCore import SIGNAL, QObject, QCoreApplication, Qt, QTimer, QThread
 from PyQt4.QtGui import QPixmap, QListWidgetItem, QErrorMessage, QDialog, QCompleter
 
 
@@ -16,14 +16,35 @@ from calibre.gui2.dialogs.metadata_single_ui import Ui_MetadataSingleDialog
 from calibre.gui2.dialogs.fetch_metadata import FetchMetadata
 from calibre.gui2.dialogs.tag_editor import TagEditor
 from calibre.gui2.dialogs.password import PasswordDialog
+from calibre.gui2.widgets import ProgressIndicator
 from calibre.ebooks import BOOK_EXTENSIONS
 from calibre.ebooks.metadata import authors_to_sort_string, string_to_authors, authors_to_string
-from calibre.ebooks.metadata.library_thing import login, cover_from_isbn, LibraryThingError
+from calibre.ebooks.metadata.library_thing import login, cover_from_isbn
 from calibre import islinux
 from calibre.ebooks.metadata.meta import get_metadata
 from calibre.utils.config import prefs
 from calibre.customize.ui import run_plugins_on_import
 
+class CoverFetcher(QThread):
+    
+    def __init__(self, username, password, isbn, timeout):
+        self.username = username
+        self.password = password
+        self.timeout = timeout
+        self.isbn = isbn
+        QThread.__init__(self)
+        self.exception = self.traceback = self.cover_data = None
+        
+    def run(self):
+        try:
+            login(self.username, self.password, force=False)
+            self.cover_data = cover_from_isbn(self.isbn, timeout=self.timeout)[0]
+        except Exception, e:
+            self.exception = e
+            self.traceback = traceback.format_exc()
+        
+        
+
 class Format(QListWidgetItem):
     def __init__(self, parent, ext, size, path=None):
         self.path = path
@@ -172,6 +193,7 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         self.bc_box.layout().setAlignment(self.cover, Qt.AlignCenter|Qt.AlignHCenter)
         self.splitter.setStretchFactor(100, 1)
         self.db = db
+        self.pi = ProgressIndicator(self)
         self.accepted_callback = accepted_callback
         self.id = db.id(row)
         self.row = row
@@ -338,13 +360,38 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
                     return
             self.fetch_cover_button.setEnabled(False)
             self.setCursor(Qt.WaitCursor)
-            QCoreApplication.instance().processEvents()
+            self.cover_fetcher = CoverFetcher(d.username(), d.password(), isbn,
+                                              self.timeout)
+            self.cover_fetcher.start()
+            self._hangcheck = QTimer(self)
+            self.connect(self._hangcheck, SIGNAL('timeout()'), self.hangcheck)
+            self.cf_start_time = time.time()
+            self.pi.start(_('Downloading cover...'))
+            self._hangcheck.start(100)
+        else:
+            error_dialog(self, _('Cannot fetch cover'), 
+            _('You must specify the ISBN identifier for this book.')).exec_()
+    
+    def hangcheck(self):
+        if not (self.cover_fetcher.isFinished() or time.time()-self.cf_start_time > 150):
+            return
+        
+        self._hangcheck.stop()
         try:
-                login(d.username(), d.password(), force=False)
+            if self.cover_fetcher.isRunning():
-                cover_data = cover_from_isbn(isbn, timeout=self.timeout)[0]
+                self.cover_fetcher.terminate()
+                error_dialog(self, _('Cannot fetch cover'), 
+                    _('<b>Could not fetch cover.</b><br/>')+
+                    _('The download timed out.')).exec_()
+                return
+            if self.cover_fetcher.exception is not None:
+                err = self.cover_fetcher.exception
+                error_dialog(self, _('Cannot fetch cover'), 
+                    _('<b>Could not fetch cover.</b><br/>')+repr(err)).exec_()
+                return
             
             pix = QPixmap()
-                pix.loadFromData(cover_data)
+            pix.loadFromData(self.cover_fetcher.cover_data)
             if pix.isNull():
                 error_dialog(self.window, _('Bad cover'), 
                              _('The cover is not a valid picture')).exec_()
@@ -352,16 +399,10 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
                 self.cover.setPixmap(pix)
                 self.cover_changed = True
                 self.cpixmap = pix
-            except LibraryThingError, err:
-                error_dialog(self, _('Cannot fetch cover'), 
-                    _('<b>Could not fetch cover.</b><br/>')+repr(err)).exec_()
         finally:
             self.fetch_cover_button.setEnabled(True)
             self.unsetCursor()
-                
+            self.pi.stop()
-        else:
-            error_dialog(self, _('Cannot fetch cover'), 
-                _('You must specify the ISBN identifier for this book.')).exec_()
                 
         
     def fetch_metadata(self):

src/calibre/gui2/widgets.py

@@ -7,9 +7,9 @@ import re, os, traceback
 from PyQt4.QtGui import QListView, QIcon, QFont, QLabel, QListWidget, \
                         QListWidgetItem, QTextCharFormat, QApplication, \
                         QSyntaxHighlighter, QCursor, QColor, QWidget, QDialog, \
-                        QPixmap
+                        QPixmap, QMovie
 from PyQt4.QtCore import QAbstractListModel, QVariant, Qt, SIGNAL, \
-                         QObject, QRegExp, QString, QSettings, QSize
+                         QObject, QRegExp, QSettings, QSize
 
 from calibre.gui2.jobs2 import DetailView
 from calibre.gui2 import human_readable, NONE, TableView, \
@@ -21,6 +21,42 @@ from calibre.ebooks.metadata.meta import metadata_from_filename
 from calibre.utils.config import prefs
 from calibre.gui2.dialogs.warning_ui import Ui_Dialog as Ui_WarningDialog
 
+class ProgressIndicator(QWidget):
+    
+    def __init__(self, *args):
+        QWidget.__init__(self, *args)
+        self.setGeometry(0, 0, 300, 350)
+        self.movie = QMovie(':/images/jobs-animated.mng')
+        self.ml = QLabel(self)
+        self.ml.setMovie(self.movie)
+        self.movie.start()
+        self.movie.setPaused(True)
+        self.status = QLabel(self)
+        self.status.setWordWrap(True)
+        self.status.setAlignment(Qt.AlignHCenter|Qt.AlignTop)
+        self.status.font().setBold(True)
+        self.status.font().setPointSize(self.font().pointSize()+6)
+        self.setVisible(False)
+        
+    def start(self, msg=''):
+        view = self.parent()
+        pwidth, pheight = view.size().width(), view.size().height()
+        self.resize(pwidth, min(pheight, 250))
+        self.move(0, (pheight-self.size().height())/2.)
+        self.ml.resize(self.ml.sizeHint())
+        self.ml.move(int((self.size().width()-self.ml.size().width())/2.), 0)
+        self.status.resize(self.size().width(), self.size().height()-self.ml.size().height()-10)
+        self.status.move(0, self.ml.size().height()+10)
+        self.status.setText(msg)
+        self.setVisible(True)
+        self.movie.setPaused(False)
+        
+    def stop(self):
+        if self.movie.state() == self.movie.Running:
+            self.movie.setPaused(True)
+            self.setVisible(False)
+ 
+
 class WarningDialog(QDialog, Ui_WarningDialog):
     
     def __init__(self, title, msg, details, parent=None):