Ejemplo n.º 1
0
class SearchBoxMixin(object):  # {{{
    def __init__(self):
        self.search.initialize(
            'main_search_history',
            colorize=True,
            help_text=_(
                'Search (For Advanced Search click the button to the left)'))
        self.search.cleared.connect(self.search_box_cleared)
        # Queued so that search.current_text will be correct
        self.search.changed.connect(self.search_box_changed,
                                    type=Qt.QueuedConnection)
        self.search.focus_to_library.connect(self.focus_to_library)
        self.clear_button.clicked.connect(self.search.clear_clicked)
        self.advanced_search_button.clicked[bool].connect(
            self.do_advanced_search)

        self.search.clear()
        self.search.setMaximumWidth(self.width() - 150)
        self.action_focus_search = QAction(self)
        shortcuts = QKeySequence.keyBindings(QKeySequence.Find)
        shortcuts = list(shortcuts) + [
            QKeySequence('/'), QKeySequence('Alt+S')
        ]
        self.action_focus_search.setShortcuts(shortcuts)
        self.action_focus_search.triggered.connect(self.focus_search_box)
        self.addAction(self.action_focus_search)
        self.search.setStatusTip(
            re.sub(r'<\w+>', ' ', unicode(self.search.toolTip())))
        self.advanced_search_button.setStatusTip(
            self.advanced_search_button.toolTip())
        self.clear_button.setStatusTip(self.clear_button.toolTip())
        self.search_highlight_only.stateChanged.connect(
            self.highlight_only_changed)
        self.search_highlight_only.setChecked(
            dynamic.get('search_highlight_only', False))

    def focus_search_box(self, *args):
        self.search.setFocus(Qt.OtherFocusReason)
        self.search.lineEdit().selectAll()

    def search_box_cleared(self):
        self.tags_view.clear()
        self.saved_search.clear()
        self.set_number_of_books_shown()

    def search_box_changed(self):
        self.saved_search.clear()
        self.tags_view.conditional_clear(self.search.current_text)

    def do_advanced_search(self, *args):
        d = SearchDialog(self, self.library_view.model().db)
        if d.exec_() == QDialog.Accepted:
            self.search.set_search_string(d.search_string(),
                                          store_in_history=True)

    def do_search_button(self):
        self.search.do_search()
        self.focus_to_library()

    def focus_to_library(self):
        self.current_view().setFocus(Qt.OtherFocusReason)

    def highlight_only_changed(self, toWhat):
        dynamic.set('search_highlight_only', toWhat)
        self.current_view().model().set_highlight_only(toWhat)
        self.focus_to_library()
class HTMLViewerDialog(SizePersistedDialog, Ui_Dialog, Logger):
    marvin_device_status_changed = pyqtSignal(dict)

    def accept(self):
        self._log_location()
        super(HTMLViewerDialog, self).accept()

    def close(self):
        self._log_location()
        super(HTMLViewerDialog, self).close()

    def copy_to_clipboard(self, *args):
        '''
        Store window contents to system clipboard
        '''
        modifiers = Application.keyboardModifiers()
        if bool(modifiers & Qt.AltModifier):
            contents = self.html_wv.page().currentFrame().toHtml()
            #contents = BeautifulSoup(str(contents)).prettify()
            QApplication.clipboard().setText(contents)
        else:
            contents = self.html_wv.page().currentFrame().toPlainText()
            QApplication.clipboard().setText(unicode(contents))

        if hasattr(self, 'ctc_button'):
            self.ctc_button.setText('Copied')
            self.ctc_button.setIcon(QIcon(I('ok.png')))

    def dispatch_button_click(self, button):
        '''
        BUTTON_ROLES = ['AcceptRole', 'RejectRole', 'DestructiveRole', 'ActionRole',
                        'HelpRole', 'YesRole', 'NoRole', 'ApplyRole', 'ResetRole']
        '''
        self._log_location()
        if self.bb.buttonRole(button) == QDialogButtonBox.AcceptRole:
            # Save content
            self.accept()

        elif self.bb.buttonRole(button) == QDialogButtonBox.ActionRole:
            if button.objectName() == 'refresh_button':
                self.refresh_custom_column()
            elif button.objectName() == 'copy_to_clipboard_button':
                self.copy_to_clipboard()

        elif self.bb.buttonRole(button) == QDialogButtonBox.RejectRole:
            # Cancelled
            self.close()

    def esc(self, *args):
        self.close()

    def initialize(self, parent, content, book_id, installed_book, marvin_db_path, use_qwv=True):
        '''
        __init__ is called on SizePersistedDialog()
        '''
        self.setupUi(self)
        self.book_id = book_id
        self.connected_device = parent.opts.gui.device_manager.device
        self.installed_book = installed_book
        self.marvin_db_path = marvin_db_path
        self.opts = parent.opts
        self.parent = parent
        self.stored_command = None
        self.verbose = parent.verbose
        self._log_location(installed_book.title)

        # Subscribe to Marvin driver change events
        self.connected_device.marvin_device_signals.reader_app_status_changed.connect(
            self.marvin_status_changed)

        # Set the icon
        self.setWindowIcon(self.parent.icon)

        # Set or hide the header
        if content['header']:
            self.header.setText(content['header'])
        else:
            self.header.setVisible(False)

        # Set the titles
        self.setWindowTitle(content['title'])
        self.html_gb.setTitle(content['group_box_title'])
        if content['toolTip']:
            self.html_gb.setToolTip(content['toolTip'])

        # Set the bg color of the content to the dialog bg color
        bgcolor = self.palette().color(QPalette.Background)
        palette = QPalette()
        palette.setColor(QPalette.Base, bgcolor)

        #self._log(repr(content['html_content']))

        # Initialize the window content
        if use_qwv:
            # Add a QWebView to layout
            self.html_wv = QWebView()
            self.html_wv.setHtml(content['html_content'])
            self.html_wv.sizeHint = self.wv_sizeHint
            self.html_wv.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
            self.html_wv.page().setLinkDelegationPolicy(QWebPage.DelegateAllLinks)
            self.html_wv.linkClicked.connect(self.link_clicked)

            self.html_gb_vl.addWidget(self.html_wv)
            self.html_tb.setVisible(False)
        else:
            # Initialize the contents of the TextBrowser
            self.html_tb.setText(content['html_content'])
            #self.html_tb.setPalette(palette)

        # Set or hide the footer
        if content['footer']:
            self.footer.setText(content['footer'])
        else:
            self.footer.setVisible(False)

        # Add Copy to Clipboard button
        self.ctc_button = self.bb.addButton('&Copy to clipboard',
                                            self.bb.ActionRole)
        self.ctc_button.clicked.connect(self.copy_to_clipboard)
        self.ctc_button.setIcon(QIcon(I('edit-copy.png')))
        self.ctc_button.setObjectName('copy_to_clipboard_button')
        self.ctc_button.setToolTip('<p>Copy plain text to clipboard, <b>Alt/Option-click</b> for HTML</p>')

        self.copy_action = QAction(self)
        self.addAction(self.copy_action)
        self.copy_action.setShortcuts(QKeySequence.Copy)
        self.copy_action.triggered.connect(self.copy_to_clipboard)

        # Add Refresh button if enabled
        if content['refresh']:
            self.refresh_method = content['refresh']['method']
            self.refresh_button = self.bb.addButton("Refresh '%s'" % content['refresh']['name'],
                                                    self.bb.ActionRole)
            self.refresh_button.setIcon(QIcon(os.path.join(self.parent.opts.resources_path,
                                              'icons',
                                              'from_marvin.png')))
            self.refresh_button.setObjectName('refresh_button')
            self.refresh_button.setEnabled(bool(self.installed_book.cid))

        # Hook the button events
        self.bb.clicked.connect(self.dispatch_button_click)

        # Restore position
        self.resize_dialog()

    def link_clicked(self, url):
        '''
        Open clicked link in regular browser
        '''
        open_url(url)

    def marvin_status_changed(self, cmd_dict):
        '''

        '''
        self.marvin_device_status_changed.emit(cmd_dict)
        command = cmd_dict['cmd']

        self._log_location(command)

        if command in ['disconnected', 'yanked']:
            self._log("closing dialog: %s" % command)
            self.close()

    def refresh_custom_column(self):
        '''
        If enabled, pass window content to custom column
        '''
        refresh = getattr(self.parent, self.refresh_method, None)
        if refresh is not None:
            refresh()
            self.refresh_button.setText('Refreshed')
            self.refresh_button.setIcon(QIcon(I('ok.png')))
        else:
            self._log_location("ERROR: Can't execute '%s'" % self.refresh_method)

    def store_command(self, command):
        '''
        '''
        self._log_location(command)
        self.stored_command = command
        self.close()

    def wv_sizeHint(self):
        '''
        QWebVew apparently has a default size of 800, 600
        '''
        return QSize(400,200)
Ejemplo n.º 3
0
class EbookViewer(MainWindow, Ui_EbookViewer):

    STATE_VERSION = 1
    FLOW_MODE_TT = _('Switch to paged mode - where the text is broken up '
            'into pages like a paper book')
    PAGED_MODE_TT = _('Switch to flow mode - where the text is not broken up '
            'into pages')

    def __init__(self, pathtoebook=None, debug_javascript=False, open_at=None):
        MainWindow.__init__(self, None)
        self.setupUi(self)
        self.view.initialize_view(debug_javascript)
        self.view.magnification_changed.connect(self.magnification_changed)
        self.show_toc_on_open = False
        self.current_book_has_toc = False
        self.base_window_title = unicode(self.windowTitle())
        self.iterator          = None
        self.current_page      = None
        self.pending_search    = None
        self.pending_search_dir= None
        self.pending_anchor    = None
        self.pending_reference = None
        self.pending_bookmark  = None
        self.pending_restore   = False
        self.existing_bookmarks= []
        self.selected_text     = None
        self.read_settings()
        self.dictionary_box.hide()
        self.close_dictionary_view.clicked.connect(lambda
                x:self.dictionary_box.hide())
        self.history = History(self.action_back, self.action_forward)
        self.metadata = Metadata(self)
        self.pos = DoubleSpinBox()
        self.pos.setDecimals(1)
        self.pos.setSuffix('/'+_('Unknown')+'     ')
        self.pos.setMinimum(1.)
        self.pos.value_changed.connect(self.update_pos_label)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
        self.pos.setMinimumWidth(150)
        self.tool_bar2.insertWidget(self.action_find_next, self.pos)
        self.reference = Reference()
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.tool_bar2.insertWidget(self.action_find_next, self.reference)
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.setFocusPolicy(Qt.StrongFocus)
        self.search = SearchBox2(self)
        self.search.setMinimumContentsLength(20)
        self.search.initialize('viewer_search_history')
        self.search.setToolTip(_('Search for text in book'))
        self.search.setMinimumWidth(200)
        self.tool_bar2.insertWidget(self.action_find_next, self.search)
        self.view.set_manager(self)
        self.pi = ProgressIndicator(self)
        self.toc.setVisible(False)
        self.action_quit = QAction(self)
        self.addAction(self.action_quit)
        self.view_resized_timer = QTimer(self)
        self.view_resized_timer.timeout.connect(self.viewport_resize_finished)
        self.view_resized_timer.setSingleShot(True)
        self.resize_in_progress = False
        qs = [Qt.CTRL+Qt.Key_Q,Qt.CTRL+Qt.Key_W]
        self.action_quit.setShortcuts(qs)
        self.action_quit.triggered.connect(self.quit)
        self.action_focus_search = QAction(self)
        self.addAction(self.action_focus_search)
        self.action_focus_search.setShortcuts([Qt.Key_Slash,
            QKeySequence(QKeySequence.Find)])
        self.action_focus_search.triggered.connect(lambda x:
                self.search.setFocus(Qt.OtherFocusReason))
        self.action_copy.setDisabled(True)
        self.action_metadata.setCheckable(True)
        self.action_metadata.setShortcut(Qt.CTRL+Qt.Key_I)
        self.action_table_of_contents.setCheckable(True)
        self.toc.setMinimumWidth(80)
        self.action_reference_mode.setCheckable(True)
        self.action_reference_mode.triggered[bool].connect(self.view.reference_mode)
        self.action_metadata.triggered[bool].connect(self.metadata.setVisible)
        self.action_table_of_contents.toggled[bool].connect(self.set_toc_visible)
        self.action_copy.triggered[bool].connect(self.copy)
        self.action_font_size_larger.triggered.connect(self.font_size_larger)
        self.action_font_size_smaller.triggered.connect(self.font_size_smaller)
        self.action_open_ebook.triggered[bool].connect(self.open_ebook)
        self.action_next_page.triggered.connect(self.view.next_page)
        self.action_previous_page.triggered.connect(self.view.previous_page)
        self.action_find_next.triggered.connect(self.find_next)
        self.action_find_previous.triggered.connect(self.find_previous)
        self.action_full_screen.triggered[bool].connect(self.toggle_fullscreen)
        self.action_full_screen.setShortcuts([Qt.Key_F11, Qt.CTRL+Qt.SHIFT+Qt.Key_F])
        self.action_full_screen.setToolTip(_('Toggle full screen (%s)') %
                _(' or ').join([unicode(x.toString(x.NativeText)) for x in
                    self.action_full_screen.shortcuts()]))
        self.action_back.triggered[bool].connect(self.back)
        self.action_forward.triggered[bool].connect(self.forward)
        self.action_bookmark.triggered[bool].connect(self.bookmark)
        self.action_preferences.triggered.connect(self.do_config)
        self.pos.editingFinished.connect(self.goto_page_num)
        self.vertical_scrollbar.valueChanged[int].connect(lambda
                x:self.goto_page(x/100.))
        self.search.search.connect(self.find)
        self.search.focus_to_library.connect(lambda: self.view.setFocus(Qt.OtherFocusReason))
        self.toc.pressed[QModelIndex].connect(self.toc_clicked)
        self.reference.goto.connect(self.goto)

        self.bookmarks_menu = QMenu()
        self.action_bookmark.setMenu(self.bookmarks_menu)
        self.set_bookmarks([])

        self.themes_menu = QMenu()
        self.action_load_theme.setMenu(self.themes_menu)
        self.tool_bar.widgetForAction(self.action_load_theme).setPopupMode(QToolButton.InstantPopup)
        self.load_theme_menu()

        if pathtoebook is not None:
            f = functools.partial(self.load_ebook, pathtoebook, open_at=open_at)
            QTimer.singleShot(50, f)
        self.view.setMinimumSize(100, 100)
        self.toc.setCursor(Qt.PointingHandCursor)
        self.tool_bar.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar2.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar.widgetForAction(self.action_bookmark).setPopupMode(QToolButton.MenuButtonPopup)
        self.action_full_screen.setCheckable(True)
        self.full_screen_label = QLabel('''
                <center>
                <h1>%s</h1>
                <h3>%s</h3>
                <h3>%s</h3>
                <h3>%s</h3>
                </center>
                '''%(_('Full screen mode'),
                    _('Right click to show controls'),
                    _('Tap in the left or right page margin to turn pages'),
                    _('Press Esc to quit')),
                    self)
        self.full_screen_label.setVisible(False)
        self.full_screen_label.setStyleSheet('''
        QLabel {
            text-align: center;
            background-color: white;
            color: black;
            border-width: 1px;
            border-style: solid;
            border-radius: 20px;
        }
        ''')
        self.window_mode_changed = None
        self.toggle_toolbar_action = QAction(_('Show/hide controls'), self)
        self.toggle_toolbar_action.triggered.connect(self.toggle_toolbars)
        self.addAction(self.toggle_toolbar_action)
        self.full_screen_label_anim = QPropertyAnimation(
                self.full_screen_label, 'size')
        self.clock_label = QLabel('99:99', self)
        self.clock_label.setVisible(False)
        self.clock_label.setFocusPolicy(Qt.NoFocus)
        self.info_label_style = '''
            QLabel {
                text-align: center;
                border-width: 1px;
                border-style: solid;
                border-radius: 8px;
                background-color: %s;
                color: %s;
                font-family: monospace;
                font-size: larger;
                padding: 5px;
        }'''
        self.original_frame_style = self.frame.frameStyle()
        self.pos_label = QLabel('2000/4000', self)
        self.pos_label.setVisible(False)
        self.pos_label.setFocusPolicy(Qt.NoFocus)
        self.clock_timer = QTimer(self)
        self.clock_timer.timeout.connect(self.update_clock)
        self.esc_full_screen_action = a = QAction(self)
        self.addAction(a)
        a.setShortcut(Qt.Key_Escape)
        a.setEnabled(False)
        a.triggered.connect(self.action_full_screen.trigger)

        self.print_menu = QMenu()
        self.print_menu.addAction(QIcon(I('print-preview.png')), _('Print Preview'))
        self.action_print.setMenu(self.print_menu)
        self.tool_bar.widgetForAction(self.action_print).setPopupMode(QToolButton.MenuButtonPopup)
        self.action_print.triggered.connect(self.print_book)
        self.print_menu.actions()[0].triggered.connect(self.print_preview)
        ca = self.view.copy_action
        ca.setShortcut(QKeySequence.Copy)
        self.addAction(ca)
        self.open_history_menu = QMenu()
        self.clear_recent_history_action = QAction(
                _('Clear list of recently opened books'), self)
        self.clear_recent_history_action.triggered.connect(self.clear_recent_history)
        self.build_recent_menu()
        self.action_open_ebook.setMenu(self.open_history_menu)
        self.open_history_menu.triggered[QAction].connect(self.open_recent)
        w = self.tool_bar.widgetForAction(self.action_open_ebook)
        w.setPopupMode(QToolButton.MenuButtonPopup)

        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            for action in x.actions():
                # So that the keyboard shortcuts for these actions will
                # continue to function even when the toolbars are hidden
                self.addAction(action)

        self.restore_state()
        self.action_toggle_paged_mode.toggled[bool].connect(self.toggle_paged_mode)

    def toggle_paged_mode(self, checked, at_start=False):
        in_paged_mode = not self.action_toggle_paged_mode.isChecked()
        self.view.document.in_paged_mode = in_paged_mode
        self.action_toggle_paged_mode.setToolTip(self.FLOW_MODE_TT if
                self.action_toggle_paged_mode.isChecked() else
                self.PAGED_MODE_TT)
        if at_start: return
        self.reload()

    def reload(self):
        if hasattr(self, 'current_index') and self.current_index > -1:
            self.view.document.page_position.save(overwrite=False)
            self.pending_restore = True
            self.load_path(self.view.last_loaded_path)

    def set_toc_visible(self, yes):
        self.toc.setVisible(yes)

    def clear_recent_history(self, *args):
        vprefs.set('viewer_open_history', [])
        self.build_recent_menu()

    def build_recent_menu(self):
        m = self.open_history_menu
        m.clear()
        recent = vprefs.get('viewer_open_history', [])
        if recent:
            m.addAction(self.clear_recent_history_action)
            m.addSeparator()
        count = 0
        for path in recent:
            if count > 9:
                break
            if os.path.exists(path):
                m.addAction(RecentAction(path, m))
                count += 1

    def shutdown(self):
        if self.isFullScreen():
            self.action_full_screen.trigger()
            return False
        self.save_state()
        return True

    def quit(self):
        if self.shutdown():
            QApplication.instance().quit()

    def closeEvent(self, e):
        if self.shutdown():
            return MainWindow.closeEvent(self, e)
        else:
            e.ignore()

    def toggle_toolbars(self):
        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            x.setVisible(not x.isVisible())

    def save_state(self):
        state = bytearray(self.saveState(self.STATE_VERSION))
        vprefs['viewer_toolbar_state'] = state
        vprefs.set('viewer_window_geometry', bytearray(self.saveGeometry()))
        if self.current_book_has_toc:
            vprefs.set('viewer_toc_isvisible', bool(self.toc.isVisible()))
        if self.toc.isVisible():
            vprefs.set('viewer_splitter_state',
                bytearray(self.splitter.saveState()))
        vprefs['multiplier'] = self.view.multiplier
        vprefs['in_paged_mode'] = not self.action_toggle_paged_mode.isChecked()

    def restore_state(self):
        state = vprefs.get('viewer_toolbar_state', None)
        if state is not None:
            try:
                state = QByteArray(state)
                self.restoreState(state, self.STATE_VERSION)
            except:
                pass
        mult = vprefs.get('multiplier', None)
        if mult:
            self.view.multiplier = mult
        # On windows Qt lets the user hide toolbars via a right click in a very
        # specific location, ensure they are visible.
        self.tool_bar.setVisible(True)
        self.tool_bar2.setVisible(True)
        self.action_toggle_paged_mode.setChecked(not vprefs.get('in_paged_mode',
            True))
        self.toggle_paged_mode(self.action_toggle_paged_mode.isChecked(),
                at_start=True)

    def lookup(self, word):
        self.dictionary_view.setHtml('<html><body><p>'+ \
            _('Connecting to dict.org to lookup: <b>%s</b>&hellip;')%word + \
            '</p></body></html>')
        self.dictionary_box.show()
        self._lookup = Lookup(word, parent=self)
        self._lookup.finished.connect(self.looked_up)
        self._lookup.start()

    def looked_up(self, *args):
        html = self._lookup.html_result
        self._lookup = None
        self.dictionary_view.setHtml(html)

    def get_remember_current_page_opt(self):
        from calibre.gui2.viewer.documentview import config
        c = config().parse()
        return c.remember_current_page

    def print_book(self):
        p = Printing(self.iterator, self)
        p.start_print()

    def print_preview(self):
        p = Printing(self.iterator, self)
        p.start_preview()

    def toggle_fullscreen(self, x):
        if self.isFullScreen():
            self.showNormal()
        else:
            self.showFullScreen()

    def showFullScreen(self):
        self.view.document.page_position.save()
        self.window_mode_changed = 'fullscreen'
        self.tool_bar.setVisible(False)
        self.tool_bar2.setVisible(False)
        if not self.view.document.fullscreen_scrollbar:
            self.vertical_scrollbar.setVisible(False)
            self.frame.layout().setSpacing(0)
        self._original_frame_margins = (
            self.centralwidget.layout().contentsMargins(),
            self.frame.layout().contentsMargins())
        self.frame.layout().setContentsMargins(0, 0, 0, 0)
        self.centralwidget.layout().setContentsMargins(0, 0, 0, 0)
        self.frame.setFrameStyle(self.frame.NoFrame|self.frame.Plain)

        super(EbookViewer, self).showFullScreen()

    def show_full_screen_label(self):
        f = self.full_screen_label
        self.esc_full_screen_action.setEnabled(True)
        f.setVisible(True)
        height = 200
        width = int(0.7*self.view.width())
        f.resize(width, height)
        f.move((self.view.width() - width)//2, (self.view.height()-height)//2)
        a = self.full_screen_label_anim
        a.setDuration(500)
        a.setStartValue(QSize(width, 0))
        a.setEndValue(QSize(width, height))
        a.start()
        QTimer.singleShot(3500, self.full_screen_label.hide)
        self.view.document.switch_to_fullscreen_mode()
        if self.view.document.fullscreen_clock:
            self.show_clock()
        if self.view.document.fullscreen_pos:
            self.show_pos_label()

    def show_clock(self):
        self.clock_label.setVisible(True)
        self.clock_label.setText(QTime(22, 33,
            33).toString(Qt.SystemLocaleShortDate))
        self.clock_timer.start(1000)
        self.clock_label.setStyleSheet(self.info_label_style%(
                'rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        self.clock_label.resize(self.clock_label.sizeHint())
        sw = QApplication.desktop().screenGeometry(self.view)
        vswidth = (self.vertical_scrollbar.width() if
                self.vertical_scrollbar.isVisible() else 0)
        self.clock_label.move(sw.width() - vswidth - 15
                - self.clock_label.width(), sw.height() -
                self.clock_label.height()-10)
        self.update_clock()

    def show_pos_label(self):
        self.pos_label.setVisible(True)
        self.pos_label.setStyleSheet(self.info_label_style%(
                'rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        sw = QApplication.desktop().screenGeometry(self.view)
        self.pos_label.move(15, sw.height() - self.pos_label.height()-10)
        self.update_pos_label()

    def update_clock(self):
        self.clock_label.setText(QTime.currentTime().toString(Qt.SystemLocaleShortDate))

    def update_pos_label(self, *args):
        if self.pos_label.isVisible():
            try:
                value, maximum = args
            except:
                value, maximum = self.pos.value(), self.pos.maximum()
            text = '%g/%g'%(value, maximum)
            self.pos_label.setText(text)
            self.pos_label.resize(self.pos_label.sizeHint())

    def showNormal(self):
        self.view.document.page_position.save()
        self.clock_label.setVisible(False)
        self.pos_label.setVisible(False)
        self.frame.setFrameStyle(self.original_frame_style)
        self.frame.layout().setSpacing(-1)
        self.clock_timer.stop()
        self.vertical_scrollbar.setVisible(True)
        self.window_mode_changed = 'normal'
        self.esc_full_screen_action.setEnabled(False)
        self.tool_bar.setVisible(True)
        self.tool_bar2.setVisible(True)
        self.full_screen_label.setVisible(False)
        if hasattr(self, '_original_frame_margins'):
            om = self._original_frame_margins
            self.centralwidget.layout().setContentsMargins(om[0])
            self.frame.layout().setContentsMargins(om[1])
        super(EbookViewer, self).showNormal()

    def handle_window_mode_toggle(self):
        if self.window_mode_changed:
            fs = self.window_mode_changed == 'fullscreen'
            self.window_mode_changed = None
            if fs:
                self.show_full_screen_label()
            else:
                self.view.document.switch_to_window_mode()
            self.view.document.page_position.restore()
            self.scrolled(self.view.scroll_fraction)

    def goto(self, ref):
        if ref:
            tokens = ref.split('.')
            if len(tokens) > 1:
                spine_index = int(tokens[0]) -1
                if spine_index == self.current_index:
                    self.view.goto(ref)
                else:
                    self.pending_reference = ref
                    self.load_path(self.iterator.spine[spine_index])

    def goto_bookmark(self, bm):
        spine_index = bm['spine']
        if spine_index > -1 and self.current_index == spine_index:
            if self.resize_in_progress:
                self.view.document.page_position.set_pos(bm['pos'])
            else:
                self.view.goto_bookmark(bm)
        else:
            self.pending_bookmark = bm
            if spine_index < 0 or spine_index >= len(self.iterator.spine):
                spine_index = 0
                self.pending_bookmark = None
            self.load_path(self.iterator.spine[spine_index])

    def toc_clicked(self, index, force=False):
        if force or QApplication.mouseButtons() & Qt.LeftButton:
            item = self.toc_model.itemFromIndex(index)
            if item.abspath is not None:
                if not os.path.exists(item.abspath):
                    return error_dialog(self, _('No such location'),
                            _('The location pointed to by this item'
                                ' does not exist.'), det_msg=item.abspath, show=True)
                url = QUrl.fromLocalFile(item.abspath)
                if item.fragment:
                    url.setFragment(item.fragment)
                self.link_clicked(url)
        self.view.setFocus(Qt.OtherFocusReason)

    def selection_changed(self, selected_text):
        self.selected_text = selected_text.strip()
        self.action_copy.setEnabled(bool(self.selected_text))

    def copy(self, x):
        if self.selected_text:
            QApplication.clipboard().setText(self.selected_text)

    def back(self, x):
        pos = self.history.back(self.pos.value())
        if pos is not None:
            self.goto_page(pos)

    def goto_page_num(self):
        num = self.pos.value()
        self.goto_page(num)

    def forward(self, x):
        pos = self.history.forward()
        if pos is not None:
            self.goto_page(pos)

    def goto_start(self):
        self.goto_page(1)

    def goto_end(self):
        self.goto_page(self.pos.maximum())

    def goto_page(self, new_page, loaded_check=True):
        if self.current_page is not None or not loaded_check:
            for page in self.iterator.spine:
                if new_page >= page.start_page and new_page <= page.max_page:
                    try:
                        frac = float(new_page-page.start_page)/(page.pages-1)
                    except ZeroDivisionError:
                        frac = 0
                    if page == self.current_page:
                        self.view.scroll_to(frac)
                    else:
                        self.load_path(page, pos=frac)

    def open_ebook(self, checked):
        files = choose_files(self, 'ebook viewer open dialog',
                     _('Choose ebook'),
                     [(_('Ebooks'), available_input_formats())],
                     all_files=False,
                     select_only_single_file=True)
        if files:
            self.load_ebook(files[0])

    def open_recent(self, action):
        self.load_ebook(action.path)

    def font_size_larger(self):
        self.view.magnify_fonts()
        self.action_font_size_larger.setEnabled(self.view.multiplier < 3)
        self.action_font_size_smaller.setEnabled(self.view.multiplier > 0.2)

    def font_size_smaller(self):
        self.view.shrink_fonts()
        self.action_font_size_larger.setEnabled(self.view.multiplier < 3)
        self.action_font_size_smaller.setEnabled(self.view.multiplier > 0.2)

    def magnification_changed(self, val):
        tt = _('Make font size %(which)s\nCurrent magnification: %(mag).1f')
        self.action_font_size_larger.setToolTip(
                tt %dict(which=_('larger'), mag=val))
        self.action_font_size_smaller.setToolTip(
                tt %dict(which=_('smaller'), mag=val))

    def find(self, text, repeat=False, backwards=False):
        if not text:
            self.view.search('')
            return self.search.search_done(False)
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)
            return self.search.search_done(True)
        index = self.iterator.search(text, self.current_index,
                backwards=backwards)
        if index is None:
            if self.current_index > 0:
                index = self.iterator.search(text, 0)
                if index is None:
                    info_dialog(self, _('No matches found'),
                                _('No matches found for: %s')%text).exec_()
                    return self.search.search_done(True)
            return self.search.search_done(True)
        self.pending_search = text
        self.pending_search_dir = 'backwards' if backwards else 'forwards'
        self.load_path(self.iterator.spine[index])

    def find_next(self):
        self.find(unicode(self.search.text()), repeat=True)

    def find_previous(self):
        self.find(unicode(self.search.text()), repeat=True, backwards=True)

    def do_search(self, text, backwards):
        self.pending_search = None
        self.pending_search_dir = None
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)

    def internal_link_clicked(self, frac):
        self.history.add(self.pos.value())

    def link_clicked(self, url):
        path = os.path.abspath(unicode(url.toLocalFile()))
        frag = None
        if path in self.iterator.spine:
            self.history.add(self.pos.value())
            path = self.iterator.spine[self.iterator.spine.index(path)]
            if url.hasFragment():
                frag = unicode(url.fragment())
            if path != self.current_page:
                self.pending_anchor = frag
                self.load_path(path)
            else:
                oldpos = self.view.document.ypos
                if frag:
                    self.view.scroll_to(frag)
                else:
                    # Scroll to top
                    self.view.scroll_to('#')
                if self.view.document.ypos == oldpos:
                    # If we are coming from goto_next_section() call this will
                    # cause another goto next section call with the next toc
                    # entry, since this one did not cause any scrolling at all.
                    QTimer.singleShot(10, self.update_indexing_state)
        else:
            open_url(url)

    def load_started(self):
        self.open_progress_indicator(_('Loading flow...'))

    def load_finished(self, ok):
        self.close_progress_indicator()
        path = self.view.path()
        try:
            index = self.iterator.spine.index(path)
        except (ValueError, AttributeError):
            return -1
        self.current_page = self.iterator.spine[index]
        self.current_index = index
        self.set_page_number(self.view.scroll_fraction)
        QTimer.singleShot(100, self.update_indexing_state)
        if self.pending_search is not None:
            self.do_search(self.pending_search,
                    self.pending_search_dir=='backwards')
            self.pending_search = None
            self.pending_search_dir = None
        if self.pending_anchor is not None:
            self.view.scroll_to(self.pending_anchor)
            self.pending_anchor = None
        if self.pending_reference is not None:
            self.view.goto(self.pending_reference)
            self.pending_reference = None
        if self.pending_bookmark is not None:
            self.goto_bookmark(self.pending_bookmark)
            self.pending_bookmark = None
        if self.pending_restore:
            self.view.document.page_position.restore()
        return self.current_index

    def goto_next_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(self.current_index,
                    self.view.document.read_anchor_positions(),
                    self.view.viewport_rect, self.view.document.in_paged_mode)
            if entry is not None:
                self.pending_goto_next_section = (
                        self.toc_model.currently_viewed_entry, entry, False)
                self.toc_clicked(entry.index(), force=True)

    def goto_previous_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(self.current_index,
                    self.view.document.read_anchor_positions(),
                    self.view.viewport_rect, self.view.document.in_paged_mode,
                    backwards=True)
            if entry is not None:
                self.pending_goto_next_section = (
                        self.toc_model.currently_viewed_entry, entry, True)
                self.toc_clicked(entry.index(), force=True)

    def update_indexing_state(self, anchor_positions=None):
        pgns = getattr(self, 'pending_goto_next_section', None)
        if hasattr(self, 'current_index'):
            if anchor_positions is None:
                anchor_positions = self.view.document.read_anchor_positions()
            items = self.toc_model.update_indexing_state(self.current_index,
                        self.view.viewport_rect, anchor_positions,
                        self.view.document.in_paged_mode)
            if items:
                self.toc.scrollTo(items[-1].index())
            if pgns is not None:
                self.pending_goto_next_section = None
                # Check that we actually progressed
                if pgns[0] is self.toc_model.currently_viewed_entry:
                    entry = self.toc_model.next_entry(self.current_index,
                            self.view.document.read_anchor_positions(),
                            self.view.viewport_rect,
                            self.view.document.in_paged_mode,
                            backwards=pgns[2], current_entry=pgns[1])
                    if entry is not None:
                        self.pending_goto_next_section = (
                                self.toc_model.currently_viewed_entry, entry,
                                pgns[2])
                        self.toc_clicked(entry.index(), force=True)

    def load_path(self, path, pos=0.0):
        self.open_progress_indicator(_('Laying out %s')%self.current_title)
        self.view.load_path(path, pos=pos)

    def viewport_resize_started(self, event):
        old, curr = event.size(), event.oldSize()
        if not self.window_mode_changed and old.width() == curr.width():
            # No relayout changes, so page position does not need to be saved
            # This is needed as Qt generates a viewport resized event that
            # changes only the height after a file has been loaded. This can
            # cause the last read position bookmark to become slightly
            # inaccurate
            return
        if not self.resize_in_progress:
            # First resize, so save the current page position
            self.resize_in_progress = True
            if not self.window_mode_changed:
                # The special handling for window mode changed will already
                # have saved page position, so only save it if this is not a
                # mode change
                self.view.document.page_position.save()

        if self.resize_in_progress:
            self.view_resized_timer.start(75)

    def viewport_resize_finished(self):
        # There hasn't been a resize event for some time
        # restore the current page position.
        self.resize_in_progress = False
        if self.window_mode_changed:
            # This resize is part of a window mode change, special case it
            self.handle_window_mode_toggle()
        else:
            self.view.document.page_position.restore()
        self.view.document.after_resize()

    def close_progress_indicator(self):
        self.pi.stop()
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar', 'vertical_scrollbar'):
            getattr(self, o).setEnabled(True)
        self.unsetCursor()
        self.view.setFocus(Qt.PopupFocusReason)

    def open_progress_indicator(self, msg=''):
        self.pi.start(msg)
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar', 'vertical_scrollbar'):
            getattr(self, o).setEnabled(False)
        self.setCursor(Qt.BusyCursor)

    def load_theme_menu(self):
        from calibre.gui2.viewer.config import load_themes
        self.themes_menu.clear()
        for key in load_themes():
            title = key[len('theme_'):]
            self.themes_menu.addAction(title, partial(self.load_theme,
                key))

    def load_theme(self, theme_id):
        self.view.load_theme(theme_id)

    def do_config(self):
        self.view.config(self)
        self.load_theme_menu()

    def bookmark(self, *args):
        num = 1
        bm = None
        while True:
            bm = _('Bookmark #%d')%num
            if bm not in self.existing_bookmarks:
                break
            num += 1
        title, ok = QInputDialog.getText(self, _('Add bookmark'),
                _('Enter title for bookmark:'), text=bm)
        title = unicode(title).strip()
        if ok and title:
            bm = self.view.bookmark()
            bm['spine'] = self.current_index
            bm['title'] = title
            self.iterator.add_bookmark(bm)
            self.set_bookmarks(self.iterator.bookmarks)

    def set_bookmarks(self, bookmarks):
        self.bookmarks_menu.clear()
        self.bookmarks_menu.addAction(_("Manage Bookmarks"), self.manage_bookmarks)
        self.bookmarks_menu.addSeparator()
        current_page = None
        self.existing_bookmarks = []
        for bm in bookmarks:
            if bm['title'] == 'calibre_current_page_bookmark':
                if self.get_remember_current_page_opt():
                    current_page = bm
            else:
                self.existing_bookmarks.append(bm['title'])
                self.bookmarks_menu.addAction(bm['title'], partial(self.goto_bookmark, bm))
        return current_page

    def manage_bookmarks(self):
        bmm = BookmarkManager(self, self.iterator.bookmarks)
        if bmm.exec_() != BookmarkManager.Accepted:
            return

        bookmarks = bmm.get_bookmarks()

        if bookmarks != self.iterator.bookmarks:
            self.iterator.set_bookmarks(bookmarks)
            self.iterator.save_bookmarks()
            self.set_bookmarks(bookmarks)

    def save_current_position(self):
        if not self.get_remember_current_page_opt():
            return
        if hasattr(self, 'current_index'):
            try:
                bm = self.view.bookmark()
                bm['spine'] = self.current_index
                bm['title'] = 'calibre_current_page_bookmark'
                self.iterator.add_bookmark(bm)
            except:
                traceback.print_exc()

    def load_ebook(self, pathtoebook, open_at=None):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__()
        self.iterator = EbookIterator(pathtoebook)
        self.open_progress_indicator(_('Loading ebook...'))
        worker = Worker(target=self.iterator.__enter__)
        worker.start()
        while worker.isAlive():
            worker.join(0.1)
            QApplication.processEvents()
        if worker.exception is not None:
            if isinstance(worker.exception, DRMError):
                from calibre.gui2.dialogs.drm_error import DRMErrorMessage
                DRMErrorMessage(self).exec_()
            else:
                r = getattr(worker.exception, 'reason', worker.exception)
                error_dialog(self, _('Could not open ebook'),
                        as_unicode(r) or _('Unknown error'),
                        det_msg=worker.traceback, show=True)
            self.close_progress_indicator()
        else:
            self.metadata.show_opf(self.iterator.opf,
                    self.iterator.book_format)
            self.view.current_language = self.iterator.language
            title = self.iterator.opf.title
            if not title:
                title = os.path.splitext(os.path.basename(pathtoebook))[0]
            if self.iterator.toc:
                self.toc_model = TOC(self.iterator.spine, self.iterator.toc)
                self.toc.setModel(self.toc_model)
                if self.show_toc_on_open:
                    self.action_table_of_contents.setChecked(True)
            else:
                self.toc_model = TOC(self.iterator.spine)
                self.toc.setModel(self.toc_model)
                self.action_table_of_contents.setChecked(False)
            if isbytestring(pathtoebook):
                pathtoebook = force_unicode(pathtoebook, filesystem_encoding)
            vh = vprefs.get('viewer_open_history', [])
            try:
                vh.remove(pathtoebook)
            except:
                pass
            vh.insert(0, pathtoebook)
            vprefs.set('viewer_open_history', vh[:50])
            self.build_recent_menu()

            self.action_table_of_contents.setDisabled(not self.iterator.toc)
            self.current_book_has_toc = bool(self.iterator.toc)
            self.current_title = title
            self.setWindowTitle(self.base_window_title+' - '+title +
                    ' [%s]'%self.iterator.book_format)
            self.pos.setMaximum(sum(self.iterator.pages))
            self.pos.setSuffix(' / %d'%sum(self.iterator.pages))
            self.vertical_scrollbar.setMinimum(100)
            self.vertical_scrollbar.setMaximum(100*sum(self.iterator.pages))
            self.vertical_scrollbar.setSingleStep(10)
            self.vertical_scrollbar.setPageStep(100)
            self.set_vscrollbar_value(1)
            self.current_index = -1
            QApplication.instance().alert(self, 5000)
            previous = self.set_bookmarks(self.iterator.bookmarks)
            if open_at is None and previous is not None:
                self.goto_bookmark(previous)
            else:
                if open_at is None:
                    self.next_document()
                else:
                    if open_at > self.pos.maximum():
                        open_at = self.pos.maximum()
                    if open_at < self.pos.minimum():
                        open_at = self.pos.minimum()
                    self.goto_page(open_at, loaded_check=False)

    def set_vscrollbar_value(self, pagenum):
        self.vertical_scrollbar.blockSignals(True)
        self.vertical_scrollbar.setValue(int(pagenum*100))
        self.vertical_scrollbar.blockSignals(False)

    def set_page_number(self, frac):
        if getattr(self, 'current_page', None) is not None:
            page = self.current_page.start_page + frac*float(self.current_page.pages-1)
            self.pos.set_value(page)
            self.set_vscrollbar_value(page)

    def scrolled(self, frac, onload=False):
        self.set_page_number(frac)
        if not onload:
            ap = self.view.document.read_anchor_positions()
            self.update_indexing_state(ap)

    def next_document(self):
        if (hasattr(self, 'current_index') and self.current_index <
                len(self.iterator.spine) - 1):
            self.load_path(self.iterator.spine[self.current_index+1])

    def previous_document(self):
        if hasattr(self, 'current_index') and self.current_index > 0:
            self.load_path(self.iterator.spine[self.current_index-1], pos=1.0)

    def keyPressEvent(self, event):
        MainWindow.keyPressEvent(self, event)
        if not event.isAccepted():
            if not self.view.handle_key_press(event):
                event.ignore()

    def __enter__(self):
        return self

    def __exit__(self, *args):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__(*args)

    def read_settings(self):
        c = config().parse()
        self.splitter.setSizes([1, 300])
        if c.remember_window_size:
            wg = vprefs.get('viewer_window_geometry', None)
            if wg is not None:
                self.restoreGeometry(wg)
            ss = vprefs.get('viewer_splitter_state', None)
            if ss is not None:
                self.splitter.restoreState(ss)
            self.show_toc_on_open = vprefs.get('viewer_toc_isvisible', False)
        av = available_height() - 30
        if self.height() > av:
            self.resize(self.width(), av)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
Ejemplo n.º 4
0
class EbookViewer(MainWindow, Ui_EbookViewer):

    STATE_VERSION = 1
    FLOW_MODE_TT = _('Switch to paged mode - where the text is broken up '
                     'into pages like a paper book')
    PAGED_MODE_TT = _('Switch to flow mode - where the text is not broken up '
                      'into pages')

    def __init__(self,
                 pathtoebook=None,
                 debug_javascript=False,
                 open_at=None,
                 start_in_fullscreen=False):
        MainWindow.__init__(self, None)
        self.setupUi(self)
        self.view.initialize_view(debug_javascript)
        self.view.magnification_changed.connect(self.magnification_changed)
        self.show_toc_on_open = False
        self.current_book_has_toc = False
        self.base_window_title = unicode(self.windowTitle())
        self.iterator = None
        self.current_page = None
        self.pending_search = None
        self.pending_search_dir = None
        self.pending_anchor = None
        self.pending_reference = None
        self.pending_bookmark = None
        self.pending_restore = False
        self.existing_bookmarks = []
        self.selected_text = None
        self.was_maximized = False
        self.read_settings()
        self.dictionary_box.hide()
        self.close_dictionary_view.clicked.connect(
            lambda x: self.dictionary_box.hide())
        self.history = History(self.action_back, self.action_forward)
        self.metadata = Metadata(self)
        self.pos = DoubleSpinBox()
        self.pos.setDecimals(1)
        self.pos.setSuffix('/' + _('Unknown') + '     ')
        self.pos.setMinimum(1.)
        self.pos.value_changed.connect(self.update_pos_label)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
        self.pos.setMinimumWidth(150)
        self.tool_bar2.insertWidget(self.action_find_next, self.pos)
        self.reference = Reference()
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.tool_bar2.insertWidget(self.action_find_next, self.reference)
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.setFocusPolicy(Qt.StrongFocus)
        self.search = SearchBox2(self)
        self.search.setMinimumContentsLength(20)
        self.search.initialize('viewer_search_history')
        self.search.setToolTip(_('Search for text in book'))
        self.search.setMinimumWidth(200)
        self.tool_bar2.insertWidget(self.action_find_next, self.search)
        self.view.set_manager(self)
        self.pi = ProgressIndicator(self)
        self.toc.setVisible(False)
        self.action_quit = QAction(_('&Quit'), self)
        self.addAction(self.action_quit)
        self.view_resized_timer = QTimer(self)
        self.view_resized_timer.timeout.connect(self.viewport_resize_finished)
        self.view_resized_timer.setSingleShot(True)
        self.resize_in_progress = False
        qs = [Qt.CTRL + Qt.Key_Q, Qt.CTRL + Qt.Key_W]
        self.action_quit.setShortcuts(qs)
        self.action_quit.triggered.connect(self.quit)
        self.action_focus_search = QAction(self)
        self.addAction(self.action_focus_search)
        self.action_focus_search.setShortcuts(
            [Qt.Key_Slash, QKeySequence(QKeySequence.Find)])
        self.action_focus_search.triggered.connect(
            lambda x: self.search.setFocus(Qt.OtherFocusReason))
        self.action_copy.setDisabled(True)
        self.action_metadata.setCheckable(True)
        self.action_metadata.setShortcut(Qt.CTRL + Qt.Key_I)
        self.action_table_of_contents.setCheckable(True)
        self.toc.setMinimumWidth(80)
        self.action_reference_mode.setCheckable(True)
        self.action_reference_mode.triggered[bool].connect(
            self.view.reference_mode)
        self.action_metadata.triggered[bool].connect(self.metadata.setVisible)
        self.action_table_of_contents.toggled[bool].connect(
            self.set_toc_visible)
        self.action_copy.triggered[bool].connect(self.copy)
        self.action_font_size_larger.triggered.connect(self.font_size_larger)
        self.action_font_size_smaller.triggered.connect(self.font_size_smaller)
        self.action_font_size_larger.setShortcut(Qt.CTRL + Qt.Key_Equal)
        self.action_font_size_smaller.setShortcut(Qt.CTRL + Qt.Key_Minus)
        self.action_open_ebook.triggered[bool].connect(self.open_ebook)
        self.action_next_page.triggered.connect(self.view.next_page)
        self.action_previous_page.triggered.connect(self.view.previous_page)
        self.action_find_next.triggered.connect(self.find_next)
        self.action_find_previous.triggered.connect(self.find_previous)
        self.action_full_screen.triggered[bool].connect(self.toggle_fullscreen)
        self.action_full_screen.setShortcuts(
            [Qt.Key_F11, Qt.CTRL + Qt.SHIFT + Qt.Key_F])
        self.action_full_screen.setToolTip(
            _('Toggle full screen (%s)') % _(' or ').join([
                unicode(x.toString(x.NativeText))
                for x in self.action_full_screen.shortcuts()
            ]))
        self.action_back.triggered[bool].connect(self.back)
        self.action_forward.triggered[bool].connect(self.forward)
        self.action_bookmark.triggered[bool].connect(self.bookmark)
        self.action_preferences.triggered.connect(self.do_config)
        self.pos.editingFinished.connect(self.goto_page_num)
        self.vertical_scrollbar.valueChanged[int].connect(
            lambda x: self.goto_page(x / 100.))
        self.search.search.connect(self.find)
        self.search.focus_to_library.connect(
            lambda: self.view.setFocus(Qt.OtherFocusReason))
        self.toc.pressed[QModelIndex].connect(self.toc_clicked)
        self.reference.goto.connect(self.goto)

        self.bookmarks_menu = QMenu()
        self.action_bookmark.setMenu(self.bookmarks_menu)
        self.set_bookmarks([])

        self.themes_menu = QMenu()
        self.action_load_theme.setMenu(self.themes_menu)
        self.tool_bar.widgetForAction(self.action_load_theme).setPopupMode(
            QToolButton.InstantPopup)
        self.load_theme_menu()

        if pathtoebook is not None:
            f = functools.partial(self.load_ebook,
                                  pathtoebook,
                                  open_at=open_at)
            QTimer.singleShot(50, f)
        self.view.setMinimumSize(100, 100)
        self.toc.setCursor(Qt.PointingHandCursor)
        self.tool_bar.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar2.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar.widgetForAction(self.action_bookmark).setPopupMode(
            QToolButton.MenuButtonPopup)
        self.action_full_screen.setCheckable(True)
        self.full_screen_label = QLabel(
            '''
                <center>
                <h1>%s</h1>
                <h3>%s</h3>
                <h3>%s</h3>
                <h3>%s</h3>
                </center>
                ''' %
            (_('Full screen mode'), _('Right click to show controls'),
             _('Tap in the left or right page margin to turn pages'),
             _('Press Esc to quit')), self)
        self.full_screen_label.setVisible(False)
        self.full_screen_label.setStyleSheet('''
        QLabel {
            text-align: center;
            background-color: white;
            color: black;
            border-width: 1px;
            border-style: solid;
            border-radius: 20px;
        }
        ''')
        self.window_mode_changed = None
        self.toggle_toolbar_action = QAction(_('Show/hide controls'), self)
        self.toggle_toolbar_action.setCheckable(True)
        self.toggle_toolbar_action.triggered.connect(self.toggle_toolbars)
        self.toolbar_hidden = None
        self.addAction(self.toggle_toolbar_action)
        self.full_screen_label_anim = QPropertyAnimation(
            self.full_screen_label, 'size')
        self.clock_label = QLabel('99:99', self)
        self.clock_label.setVisible(False)
        self.clock_label.setFocusPolicy(Qt.NoFocus)
        self.info_label_style = '''
            QLabel {
                text-align: center;
                border-width: 1px;
                border-style: solid;
                border-radius: 8px;
                background-color: %s;
                color: %s;
                font-family: monospace;
                font-size: larger;
                padding: 5px;
        }'''
        self.original_frame_style = self.frame.frameStyle()
        self.pos_label = QLabel('2000/4000', self)
        self.pos_label.setVisible(False)
        self.pos_label.setFocusPolicy(Qt.NoFocus)
        self.clock_timer = QTimer(self)
        self.clock_timer.timeout.connect(self.update_clock)
        self.esc_full_screen_action = a = QAction(self)
        self.addAction(a)
        a.setShortcut(Qt.Key_Escape)
        a.setEnabled(False)
        a.triggered.connect(self.action_full_screen.trigger)

        self.print_menu = QMenu()
        self.print_menu.addAction(QIcon(I('print-preview.png')),
                                  _('Print Preview'))
        self.action_print.setMenu(self.print_menu)
        self.tool_bar.widgetForAction(self.action_print).setPopupMode(
            QToolButton.MenuButtonPopup)
        self.action_print.triggered.connect(self.print_book)
        self.print_menu.actions()[0].triggered.connect(self.print_preview)
        ca = self.view.copy_action
        ca.setShortcut(QKeySequence.Copy)
        self.addAction(ca)
        self.open_history_menu = QMenu()
        self.clear_recent_history_action = QAction(
            _('Clear list of recently opened books'), self)
        self.clear_recent_history_action.triggered.connect(
            self.clear_recent_history)
        self.build_recent_menu()
        self.action_open_ebook.setMenu(self.open_history_menu)
        self.open_history_menu.triggered[QAction].connect(self.open_recent)
        w = self.tool_bar.widgetForAction(self.action_open_ebook)
        w.setPopupMode(QToolButton.MenuButtonPopup)

        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            for action in x.actions():
                # So that the keyboard shortcuts for these actions will
                # continue to function even when the toolbars are hidden
                self.addAction(action)

        self.view.document.settings_changed.connect(self.settings_changed)

        self.restore_state()
        self.settings_changed()
        self.action_toggle_paged_mode.toggled[bool].connect(
            self.toggle_paged_mode)
        if (start_in_fullscreen or self.view.document.start_in_fullscreen):
            self.action_full_screen.trigger()

    def toggle_paged_mode(self, checked, at_start=False):
        in_paged_mode = not self.action_toggle_paged_mode.isChecked()
        self.view.document.in_paged_mode = in_paged_mode
        self.action_toggle_paged_mode.setToolTip(
            self.FLOW_MODE_TT if self.action_toggle_paged_mode.isChecked(
            ) else self.PAGED_MODE_TT)
        if at_start: return
        self.reload()

    def settings_changed(self):
        for x in ('', '2'):
            x = getattr(self, 'tool_bar' + x)
            x.setVisible(self.view.document.show_controls)

    def reload(self):
        if hasattr(self, 'current_index') and self.current_index > -1:
            self.view.document.page_position.save(overwrite=False)
            self.pending_restore = True
            self.load_path(self.view.last_loaded_path)

    def set_toc_visible(self, yes):
        self.toc.setVisible(yes)

    def clear_recent_history(self, *args):
        vprefs.set('viewer_open_history', [])
        self.build_recent_menu()

    def build_recent_menu(self):
        m = self.open_history_menu
        m.clear()
        recent = vprefs.get('viewer_open_history', [])
        if recent:
            m.addAction(self.clear_recent_history_action)
            m.addSeparator()
        count = 0
        for path in recent:
            if count > 9:
                break
            if os.path.exists(path):
                m.addAction(RecentAction(path, m))
                count += 1

    def shutdown(self):
        if self.isFullScreen() and not self.view.document.start_in_fullscreen:
            self.action_full_screen.trigger()
            return False
        self.save_state()
        return True

    def quit(self):
        if self.shutdown():
            QApplication.instance().quit()

    def closeEvent(self, e):
        if self.shutdown():
            return MainWindow.closeEvent(self, e)
        else:
            e.ignore()

    def toggle_toolbars(self):
        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            x.setVisible(not x.isVisible())

    def save_state(self):
        state = bytearray(self.saveState(self.STATE_VERSION))
        vprefs['viewer_toolbar_state'] = state
        if not self.isFullScreen():
            vprefs.set('viewer_window_geometry',
                       bytearray(self.saveGeometry()))
        if self.current_book_has_toc:
            vprefs.set('viewer_toc_isvisible', bool(self.toc.isVisible()))
        if self.toc.isVisible():
            vprefs.set('viewer_splitter_state',
                       bytearray(self.splitter.saveState()))
        vprefs['multiplier'] = self.view.multiplier
        vprefs['in_paged_mode'] = not self.action_toggle_paged_mode.isChecked()

    def restore_state(self):
        state = vprefs.get('viewer_toolbar_state', None)
        if state is not None:
            try:
                state = QByteArray(state)
                self.restoreState(state, self.STATE_VERSION)
            except:
                pass
        mult = vprefs.get('multiplier', None)
        if mult:
            self.view.multiplier = mult
        # On windows Qt lets the user hide toolbars via a right click in a very
        # specific location, ensure they are visible.
        self.tool_bar.setVisible(True)
        self.tool_bar2.setVisible(True)
        self.action_toggle_paged_mode.setChecked(
            not vprefs.get('in_paged_mode', True))
        self.toggle_paged_mode(self.action_toggle_paged_mode.isChecked(),
                               at_start=True)

    def lookup(self, word):
        self.dictionary_view.setHtml('<html><body><p>'+ \
            _('Connecting to dict.org to lookup: <b>%s</b>&hellip;')%word + \
            '</p></body></html>')
        self.dictionary_box.show()
        self._lookup = Lookup(word, parent=self)
        self._lookup.finished.connect(self.looked_up)
        self._lookup.start()

    def looked_up(self, *args):
        html = self._lookup.html_result
        self._lookup = None
        self.dictionary_view.setHtml(html)

    def get_remember_current_page_opt(self):
        from calibre.gui2.viewer.documentview import config
        c = config().parse()
        return c.remember_current_page

    def print_book(self):
        p = Printing(self.iterator, self)
        p.start_print()

    def print_preview(self):
        p = Printing(self.iterator, self)
        p.start_preview()

    def toggle_fullscreen(self, x):
        if self.isFullScreen():
            self.showNormal()
        else:
            self.showFullScreen()

    def showFullScreen(self):
        self.view.document.page_position.save()
        self.window_mode_changed = 'fullscreen'
        self.tool_bar.setVisible(False)
        self.tool_bar2.setVisible(False)
        self.was_maximized = self.isMaximized()
        if not self.view.document.fullscreen_scrollbar:
            self.vertical_scrollbar.setVisible(False)
            self.frame.layout().setSpacing(0)
        self._original_frame_margins = (
            self.centralwidget.layout().contentsMargins(),
            self.frame.layout().contentsMargins())
        self.frame.layout().setContentsMargins(0, 0, 0, 0)
        self.centralwidget.layout().setContentsMargins(0, 0, 0, 0)
        self.frame.setFrameStyle(self.frame.NoFrame | self.frame.Plain)

        super(EbookViewer, self).showFullScreen()

    def show_full_screen_label(self):
        f = self.full_screen_label
        self.esc_full_screen_action.setEnabled(True)
        height = 200
        width = int(0.7 * self.view.width())
        f.resize(width, height)
        f.move((self.view.width() - width) // 2,
               (self.view.height() - height) // 2)
        if self.view.document.show_fullscreen_help:
            f.setVisible(True)
            a = self.full_screen_label_anim
            a.setDuration(500)
            a.setStartValue(QSize(width, 0))
            a.setEndValue(QSize(width, height))
            a.start()
            QTimer.singleShot(3500, self.full_screen_label.hide)
        self.view.document.switch_to_fullscreen_mode()
        if self.view.document.fullscreen_clock:
            self.show_clock()
        if self.view.document.fullscreen_pos:
            self.show_pos_label()

    def show_clock(self):
        self.clock_label.setVisible(True)
        self.clock_label.setText(
            QTime(22, 33, 33).toString(Qt.SystemLocaleShortDate))
        self.clock_timer.start(1000)
        self.clock_label.setStyleSheet(
            self.info_label_style %
            ('rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        self.clock_label.resize(self.clock_label.sizeHint())
        sw = QApplication.desktop().screenGeometry(self.view)
        vswidth = (self.vertical_scrollbar.width()
                   if self.vertical_scrollbar.isVisible() else 0)
        self.clock_label.move(
            sw.width() - vswidth - 15 - self.clock_label.width(),
            sw.height() - self.clock_label.height() - 10)
        self.update_clock()

    def show_pos_label(self):
        self.pos_label.setVisible(True)
        self.pos_label.setStyleSheet(
            self.info_label_style %
            ('rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        sw = QApplication.desktop().screenGeometry(self.view)
        self.pos_label.move(15, sw.height() - self.pos_label.height() - 10)
        self.update_pos_label()

    def update_clock(self):
        self.clock_label.setText(QTime.currentTime().toString(
            Qt.SystemLocaleShortDate))

    def update_pos_label(self, *args):
        if self.pos_label.isVisible():
            try:
                value, maximum = args
            except:
                value, maximum = self.pos.value(), self.pos.maximum()
            text = '%g/%g' % (value, maximum)
            self.pos_label.setText(text)
            self.pos_label.resize(self.pos_label.sizeHint())

    def showNormal(self):
        self.view.document.page_position.save()
        self.clock_label.setVisible(False)
        self.pos_label.setVisible(False)
        self.frame.setFrameStyle(self.original_frame_style)
        self.frame.layout().setSpacing(-1)
        self.clock_timer.stop()
        self.vertical_scrollbar.setVisible(True)
        self.window_mode_changed = 'normal'
        self.esc_full_screen_action.setEnabled(False)
        self.settings_changed()
        self.full_screen_label.setVisible(False)
        if hasattr(self, '_original_frame_margins'):
            om = self._original_frame_margins
            self.centralwidget.layout().setContentsMargins(om[0])
            self.frame.layout().setContentsMargins(om[1])
        if self.was_maximized:
            super(EbookViewer, self).showMaximized()
        else:
            super(EbookViewer, self).showNormal()

    def handle_window_mode_toggle(self):
        if self.window_mode_changed:
            fs = self.window_mode_changed == 'fullscreen'
            self.window_mode_changed = None
            if fs:
                self.show_full_screen_label()
            else:
                self.view.document.switch_to_window_mode()
            self.view.document.page_position.restore()
            self.scrolled(self.view.scroll_fraction)

    def goto(self, ref):
        if ref:
            tokens = ref.split('.')
            if len(tokens) > 1:
                spine_index = int(tokens[0]) - 1
                if spine_index == self.current_index:
                    self.view.goto(ref)
                else:
                    self.pending_reference = ref
                    self.load_path(self.iterator.spine[spine_index])

    def goto_bookmark(self, bm):
        spine_index = bm['spine']
        if spine_index > -1 and self.current_index == spine_index:
            if self.resize_in_progress:
                self.view.document.page_position.set_pos(bm['pos'])
            else:
                self.view.goto_bookmark(bm)
        else:
            self.pending_bookmark = bm
            if spine_index < 0 or spine_index >= len(self.iterator.spine):
                spine_index = 0
                self.pending_bookmark = None
            self.load_path(self.iterator.spine[spine_index])

    def toc_clicked(self, index, force=False):
        if force or QApplication.mouseButtons() & Qt.LeftButton:
            item = self.toc_model.itemFromIndex(index)
            if item.abspath is not None:
                if not os.path.exists(item.abspath):
                    return error_dialog(
                        self,
                        _('No such location'),
                        _('The location pointed to by this item'
                          ' does not exist.'),
                        det_msg=item.abspath,
                        show=True)
                url = QUrl.fromLocalFile(item.abspath)
                if item.fragment:
                    url.setFragment(item.fragment)
                self.link_clicked(url)
        self.view.setFocus(Qt.OtherFocusReason)

    def selection_changed(self, selected_text):
        self.selected_text = selected_text.strip()
        self.action_copy.setEnabled(bool(self.selected_text))

    def copy(self, x):
        if self.selected_text:
            QApplication.clipboard().setText(self.selected_text)

    def back(self, x):
        pos = self.history.back(self.pos.value())
        if pos is not None:
            self.goto_page(pos)

    def goto_page_num(self):
        num = self.pos.value()
        self.goto_page(num)

    def forward(self, x):
        pos = self.history.forward(self.pos.value())
        if pos is not None:
            self.goto_page(pos)

    def goto_start(self):
        self.goto_page(1)

    def goto_end(self):
        self.goto_page(self.pos.maximum())

    def goto_page(self, new_page, loaded_check=True):
        if self.current_page is not None or not loaded_check:
            for page in self.iterator.spine:
                if new_page >= page.start_page and new_page <= page.max_page:
                    try:
                        frac = float(new_page -
                                     page.start_page) / (page.pages - 1)
                    except ZeroDivisionError:
                        frac = 0
                    if page == self.current_page:
                        self.view.scroll_to(frac)
                    else:
                        self.load_path(page, pos=frac)

    def open_ebook(self, checked):
        files = choose_files(self,
                             'ebook viewer open dialog',
                             _('Choose ebook'),
                             [(_('Ebooks'), available_input_formats())],
                             all_files=False,
                             select_only_single_file=True)
        if files:
            self.load_ebook(files[0])

    def open_recent(self, action):
        self.load_ebook(action.path)

    def font_size_larger(self):
        self.view.magnify_fonts()

    def font_size_smaller(self):
        self.view.shrink_fonts()

    def magnification_changed(self, val):
        tt = '%(action)s [%(sc)s]\n' + _('Current magnification: %(mag).1f')
        sc = unicode(self.action_font_size_larger.shortcut().toString())
        self.action_font_size_larger.setToolTip(
            tt % dict(action=unicode(self.action_font_size_larger.text()),
                      mag=val,
                      sc=sc))
        sc = unicode(self.action_font_size_smaller.shortcut().toString())
        self.action_font_size_smaller.setToolTip(
            tt % dict(action=unicode(self.action_font_size_smaller.text()),
                      mag=val,
                      sc=sc))
        self.action_font_size_larger.setEnabled(self.view.multiplier < 3)
        self.action_font_size_smaller.setEnabled(self.view.multiplier > 0.2)

    def find(self, text, repeat=False, backwards=False):
        if not text:
            self.view.search('')
            return self.search.search_done(False)
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)
            return self.search.search_done(True)
        index = self.iterator.search(text,
                                     self.current_index,
                                     backwards=backwards)
        if index is None:
            if self.current_index > 0:
                index = self.iterator.search(text, 0)
                if index is None:
                    info_dialog(self, _('No matches found'),
                                _('No matches found for: %s') % text).exec_()
                    return self.search.search_done(True)
            return self.search.search_done(True)
        self.pending_search = text
        self.pending_search_dir = 'backwards' if backwards else 'forwards'
        self.load_path(self.iterator.spine[index])

    def find_next(self):
        self.find(unicode(self.search.text()), repeat=True)

    def find_previous(self):
        self.find(unicode(self.search.text()), repeat=True, backwards=True)

    def do_search(self, text, backwards):
        self.pending_search = None
        self.pending_search_dir = None
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)

    def internal_link_clicked(self, frac):
        self.history.add(self.pos.value())

    def link_clicked(self, url):
        path = os.path.abspath(unicode(url.toLocalFile()))
        frag = None
        if path in self.iterator.spine:
            self.history.add(self.pos.value())
            path = self.iterator.spine[self.iterator.spine.index(path)]
            if url.hasFragment():
                frag = unicode(url.fragment())
            if path != self.current_page:
                self.pending_anchor = frag
                self.load_path(path)
            else:
                oldpos = self.view.document.ypos
                if frag:
                    self.view.scroll_to(frag)
                else:
                    # Scroll to top
                    self.view.scroll_to(0)
                if self.view.document.ypos == oldpos:
                    # If we are coming from goto_next_section() call this will
                    # cause another goto next section call with the next toc
                    # entry, since this one did not cause any scrolling at all.
                    QTimer.singleShot(10, self.update_indexing_state)
        else:
            open_url(url)

    def load_started(self):
        self.open_progress_indicator(_('Loading flow...'))

    def load_finished(self, ok):
        self.close_progress_indicator()
        path = self.view.path()
        try:
            index = self.iterator.spine.index(path)
        except (ValueError, AttributeError):
            return -1
        self.current_page = self.iterator.spine[index]
        self.current_index = index
        self.set_page_number(self.view.scroll_fraction)
        QTimer.singleShot(100, self.update_indexing_state)
        if self.pending_search is not None:
            self.do_search(self.pending_search,
                           self.pending_search_dir == 'backwards')
            self.pending_search = None
            self.pending_search_dir = None
        if self.pending_anchor is not None:
            self.view.scroll_to(self.pending_anchor)
            self.pending_anchor = None
        if self.pending_reference is not None:
            self.view.goto(self.pending_reference)
            self.pending_reference = None
        if self.pending_bookmark is not None:
            self.goto_bookmark(self.pending_bookmark)
            self.pending_bookmark = None
        if self.pending_restore:
            self.view.document.page_position.restore()
        return self.current_index

    def goto_next_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(
                self.current_index, self.view.document.read_anchor_positions(),
                self.view.viewport_rect, self.view.document.in_paged_mode)
            if entry is not None:
                self.pending_goto_next_section = (
                    self.toc_model.currently_viewed_entry, entry, False)
                self.toc_clicked(entry.index(), force=True)

    def goto_previous_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(
                self.current_index,
                self.view.document.read_anchor_positions(),
                self.view.viewport_rect,
                self.view.document.in_paged_mode,
                backwards=True)
            if entry is not None:
                self.pending_goto_next_section = (
                    self.toc_model.currently_viewed_entry, entry, True)
                self.toc_clicked(entry.index(), force=True)

    def update_indexing_state(self, anchor_positions=None):
        pgns = getattr(self, 'pending_goto_next_section', None)
        if hasattr(self, 'current_index'):
            if anchor_positions is None:
                anchor_positions = self.view.document.read_anchor_positions()
            items = self.toc_model.update_indexing_state(
                self.current_index, self.view.viewport_rect, anchor_positions,
                self.view.document.in_paged_mode)
            if items:
                self.toc.scrollTo(items[-1].index())
            if pgns is not None:
                self.pending_goto_next_section = None
                # Check that we actually progressed
                if pgns[0] is self.toc_model.currently_viewed_entry:
                    entry = self.toc_model.next_entry(
                        self.current_index,
                        self.view.document.read_anchor_positions(),
                        self.view.viewport_rect,
                        self.view.document.in_paged_mode,
                        backwards=pgns[2],
                        current_entry=pgns[1])
                    if entry is not None:
                        self.pending_goto_next_section = (
                            self.toc_model.currently_viewed_entry, entry,
                            pgns[2])
                        self.toc_clicked(entry.index(), force=True)

    def load_path(self, path, pos=0.0):
        self.open_progress_indicator(_('Laying out %s') % self.current_title)
        self.view.load_path(path, pos=pos)

    def viewport_resize_started(self, event):
        old, curr = event.size(), event.oldSize()
        if not self.window_mode_changed and old.width() == curr.width():
            # No relayout changes, so page position does not need to be saved
            # This is needed as Qt generates a viewport resized event that
            # changes only the height after a file has been loaded. This can
            # cause the last read position bookmark to become slightly
            # inaccurate
            return
        if not self.resize_in_progress:
            # First resize, so save the current page position
            self.resize_in_progress = True
            if not self.window_mode_changed:
                # The special handling for window mode changed will already
                # have saved page position, so only save it if this is not a
                # mode change
                self.view.document.page_position.save()

        if self.resize_in_progress:
            self.view_resized_timer.start(75)

    def viewport_resize_finished(self):
        # There hasn't been a resize event for some time
        # restore the current page position.
        self.resize_in_progress = False
        if self.window_mode_changed:
            # This resize is part of a window mode change, special case it
            self.handle_window_mode_toggle()
        else:
            self.view.document.page_position.restore()
        self.view.document.after_resize()

    def close_progress_indicator(self):
        self.pi.stop()
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar',
                  'vertical_scrollbar'):
            getattr(self, o).setEnabled(True)
        self.unsetCursor()
        self.view.setFocus(Qt.PopupFocusReason)

    def open_progress_indicator(self, msg=''):
        self.pi.start(msg)
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar',
                  'vertical_scrollbar'):
            getattr(self, o).setEnabled(False)
        self.setCursor(Qt.BusyCursor)

    def load_theme_menu(self):
        from calibre.gui2.viewer.config import load_themes
        self.themes_menu.clear()
        for key in load_themes():
            title = key[len('theme_'):]
            self.themes_menu.addAction(title, partial(self.load_theme, key))

    def load_theme(self, theme_id):
        self.view.load_theme(theme_id)

    def do_config(self):
        self.view.config(self)
        self.load_theme_menu()
        from calibre.gui2 import config
        if not config['viewer_search_history']:
            self.search.clear_history()

    def bookmark(self, *args):
        num = 1
        bm = None
        while True:
            bm = _('Bookmark #%d') % num
            if bm not in self.existing_bookmarks:
                break
            num += 1
        title, ok = QInputDialog.getText(self,
                                         _('Add bookmark'),
                                         _('Enter title for bookmark:'),
                                         text=bm)
        title = unicode(title).strip()
        if ok and title:
            bm = self.view.bookmark()
            bm['spine'] = self.current_index
            bm['title'] = title
            self.iterator.add_bookmark(bm)
            self.set_bookmarks(self.iterator.bookmarks)

    def set_bookmarks(self, bookmarks):
        self.bookmarks_menu.clear()
        self.bookmarks_menu.addAction(_("Manage Bookmarks"),
                                      self.manage_bookmarks)
        self.bookmarks_menu.addSeparator()
        current_page = None
        self.existing_bookmarks = []
        for bm in bookmarks:
            if bm['title'] == 'calibre_current_page_bookmark':
                if self.get_remember_current_page_opt():
                    current_page = bm
            else:
                self.existing_bookmarks.append(bm['title'])
                self.bookmarks_menu.addAction(bm['title'],
                                              partial(self.goto_bookmark, bm))
        return current_page

    def manage_bookmarks(self):
        bmm = BookmarkManager(self, self.iterator.bookmarks)
        if bmm.exec_() != BookmarkManager.Accepted:
            return

        bookmarks = bmm.get_bookmarks()

        if bookmarks != self.iterator.bookmarks:
            self.iterator.set_bookmarks(bookmarks)
            self.iterator.save_bookmarks()
            self.set_bookmarks(bookmarks)

    def save_current_position(self):
        if not self.get_remember_current_page_opt():
            return
        if hasattr(self, 'current_index'):
            try:
                bm = self.view.bookmark()
                bm['spine'] = self.current_index
                bm['title'] = 'calibre_current_page_bookmark'
                self.iterator.add_bookmark(bm)
            except:
                traceback.print_exc()

    def load_ebook(self, pathtoebook, open_at=None):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__()
        self.iterator = EbookIterator(pathtoebook)
        self.open_progress_indicator(_('Loading ebook...'))
        worker = Worker(target=partial(self.iterator.__enter__,
                                       extract_embedded_fonts_for_qt=True))
        worker.start()
        while worker.isAlive():
            worker.join(0.1)
            QApplication.processEvents()
        if worker.exception is not None:
            if isinstance(worker.exception, DRMError):
                from calibre.gui2.dialogs.drm_error import DRMErrorMessage
                DRMErrorMessage(self).exec_()
            else:
                r = getattr(worker.exception, 'reason', worker.exception)
                error_dialog(self,
                             _('Could not open ebook'),
                             as_unicode(r) or _('Unknown error'),
                             det_msg=worker.traceback,
                             show=True)
            self.close_progress_indicator()
        else:
            self.metadata.show_opf(self.iterator.opf,
                                   self.iterator.book_format)
            self.view.current_language = self.iterator.language
            title = self.iterator.opf.title
            if not title:
                title = os.path.splitext(os.path.basename(pathtoebook))[0]
            if self.iterator.toc:
                self.toc_model = TOC(self.iterator.spine, self.iterator.toc)
                self.toc.setModel(self.toc_model)
                if self.show_toc_on_open:
                    self.action_table_of_contents.setChecked(True)
            else:
                self.toc_model = TOC(self.iterator.spine)
                self.toc.setModel(self.toc_model)
                self.action_table_of_contents.setChecked(False)
            if isbytestring(pathtoebook):
                pathtoebook = force_unicode(pathtoebook, filesystem_encoding)
            vh = vprefs.get('viewer_open_history', [])
            try:
                vh.remove(pathtoebook)
            except:
                pass
            vh.insert(0, pathtoebook)
            vprefs.set('viewer_open_history', vh[:50])
            self.build_recent_menu()

            self.action_table_of_contents.setDisabled(not self.iterator.toc)
            self.current_book_has_toc = bool(self.iterator.toc)
            self.current_title = title
            self.setWindowTitle(self.base_window_title + ' - ' + title +
                                ' [%s]' % self.iterator.book_format)
            self.pos.setMaximum(sum(self.iterator.pages))
            self.pos.setSuffix(' / %d' % sum(self.iterator.pages))
            self.vertical_scrollbar.setMinimum(100)
            self.vertical_scrollbar.setMaximum(100 * sum(self.iterator.pages))
            self.vertical_scrollbar.setSingleStep(10)
            self.vertical_scrollbar.setPageStep(100)
            self.set_vscrollbar_value(1)
            self.current_index = -1
            QApplication.instance().alert(self, 5000)
            previous = self.set_bookmarks(self.iterator.bookmarks)
            if open_at is None and previous is not None:
                self.goto_bookmark(previous)
            else:
                if open_at is None:
                    self.next_document()
                else:
                    if open_at > self.pos.maximum():
                        open_at = self.pos.maximum()
                    if open_at < self.pos.minimum():
                        open_at = self.pos.minimum()
                    self.goto_page(open_at, loaded_check=False)

    def set_vscrollbar_value(self, pagenum):
        self.vertical_scrollbar.blockSignals(True)
        self.vertical_scrollbar.setValue(int(pagenum * 100))
        self.vertical_scrollbar.blockSignals(False)

    def set_page_number(self, frac):
        if getattr(self, 'current_page', None) is not None:
            page = self.current_page.start_page + frac * float(
                self.current_page.pages - 1)
            self.pos.set_value(page)
            self.set_vscrollbar_value(page)

    def scrolled(self, frac, onload=False):
        self.set_page_number(frac)
        if not onload:
            ap = self.view.document.read_anchor_positions()
            self.update_indexing_state(ap)

    def next_document(self):
        if (hasattr(self, 'current_index')
                and self.current_index < len(self.iterator.spine) - 1):
            self.load_path(self.iterator.spine[self.current_index + 1])

    def previous_document(self):
        if hasattr(self, 'current_index') and self.current_index > 0:
            self.load_path(self.iterator.spine[self.current_index - 1],
                           pos=1.0)

    def keyPressEvent(self, event):
        MainWindow.keyPressEvent(self, event)
        if not event.isAccepted():
            if not self.view.handle_key_press(event):
                event.ignore()

    def __enter__(self):
        return self

    def __exit__(self, *args):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__(*args)

    def read_settings(self):
        c = config().parse()
        self.splitter.setSizes([1, 300])
        if c.remember_window_size:
            wg = vprefs.get('viewer_window_geometry', None)
            if wg is not None:
                self.restoreGeometry(wg)
            ss = vprefs.get('viewer_splitter_state', None)
            if ss is not None:
                self.splitter.restoreState(ss)
            self.show_toc_on_open = vprefs.get('viewer_toc_isvisible', False)
        av = available_height() - 30
        if self.height() > av:
            self.resize(self.width(), av)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
Ejemplo n.º 5
0
class MessageBox(QDialog, Ui_Dialog): # {{{

    ERROR = 0
    WARNING = 1
    INFO = 2
    QUESTION = 3

    def __init__(self, type_, title, msg,
                 det_msg='',
                 q_icon=None,
                 show_copy_button=True,
                 parent=None, default_yes=True):
        QDialog.__init__(self, parent)
        if q_icon is None:
            icon = {
                    self.ERROR : 'error',
                    self.WARNING: 'warning',
                    self.INFO:    'information',
                    self.QUESTION: 'question',
            }[type_]
            icon = 'dialog_%s.png'%icon
            self.icon = QIcon(I(icon))
        else:
            self.icon = q_icon
        self.setupUi(self)

        self.setWindowTitle(title)
        self.setWindowIcon(self.icon)
        self.icon_label.setPixmap(self.icon.pixmap(128, 128))
        self.msg.setText(msg)
        self.det_msg.setPlainText(det_msg)
        self.det_msg.setVisible(False)
        self.toggle_checkbox.setVisible(False)

        if show_copy_button:
            self.ctc_button = self.bb.addButton(_('&Copy to clipboard'),
                    self.bb.ActionRole)
            self.ctc_button.clicked.connect(self.copy_to_clipboard)

        self.show_det_msg = _('Show &details')
        self.hide_det_msg = _('Hide &details')
        self.det_msg_toggle = self.bb.addButton(self.show_det_msg, self.bb.ActionRole)
        self.det_msg_toggle.clicked.connect(self.toggle_det_msg)
        self.det_msg_toggle.setToolTip(
                _('Show detailed information about this error'))

        self.copy_action = QAction(self)
        self.addAction(self.copy_action)
        self.copy_action.setShortcuts(QKeySequence.Copy)
        self.copy_action.triggered.connect(self.copy_to_clipboard)

        self.is_question = type_ == self.QUESTION
        if self.is_question:
            self.bb.setStandardButtons(self.bb.Yes|self.bb.No)
            self.bb.button(self.bb.Yes if default_yes else self.bb.No
                    ).setDefault(True)
            self.default_yes = default_yes
        else:
            self.bb.button(self.bb.Ok).setDefault(True)

        if not det_msg:
            self.det_msg_toggle.setVisible(False)

        self.do_resize()


    def toggle_det_msg(self, *args):
        vis = unicode(self.det_msg_toggle.text()) == self.hide_det_msg
        self.det_msg_toggle.setText(self.show_det_msg if vis else
                self.hide_det_msg)
        self.det_msg.setVisible(not vis)
        self.do_resize()

    def do_resize(self):
        sz = self.sizeHint() + QSize(100, 0)
        sz.setWidth(min(500, sz.width()))
        sz.setHeight(min(500, sz.height()))
        self.resize(sz)

    def copy_to_clipboard(self, *args):
        QApplication.clipboard().setText(
                'calibre, version %s\n%s: %s\n\n%s' %
                (__version__, unicode(self.windowTitle()),
                    unicode(self.msg.text()),
                    unicode(self.det_msg.toPlainText())))
        if hasattr(self, 'ctc_button'):
            self.ctc_button.setText(_('Copied'))

    def showEvent(self, ev):
        ret = QDialog.showEvent(self, ev)
        if self.is_question:
            try:
                self.bb.button(self.bb.Yes if self.default_yes else self.bb.No
                        ).setFocus(Qt.OtherFocusReason)
            except:
                pass# Buttons were changed
        else:
            self.bb.button(self.bb.Ok).setFocus(Qt.OtherFocusReason)
        return ret

    def set_details(self, msg):
        if not msg:
            msg = ''
        self.det_msg.setPlainText(msg)
        self.det_msg_toggle.setText(self.show_det_msg)
        self.det_msg_toggle.setVisible(bool(msg))
        self.det_msg.setVisible(False)
        self.do_resize()
Ejemplo n.º 6
0
class MessageBox(QDialog, Ui_Dialog):  # {{{

    ERROR = 0
    WARNING = 1
    INFO = 2
    QUESTION = 3

    def __init__(self,
                 type_,
                 title,
                 msg,
                 det_msg='',
                 q_icon=None,
                 show_copy_button=True,
                 parent=None,
                 default_yes=True):
        QDialog.__init__(self, parent)
        if q_icon is None:
            icon = {
                self.ERROR: 'error',
                self.WARNING: 'warning',
                self.INFO: 'information',
                self.QUESTION: 'question',
            }[type_]
            icon = 'dialog_%s.png' % icon
            self.icon = QIcon(I(icon))
        else:
            self.icon = q_icon
        self.setupUi(self)

        self.setWindowTitle(title)
        self.setWindowIcon(self.icon)
        self.icon_label.setPixmap(self.icon.pixmap(128, 128))
        self.msg.setText(msg)
        self.det_msg.setPlainText(det_msg)
        self.det_msg.setVisible(False)
        self.toggle_checkbox.setVisible(False)

        if show_copy_button:
            self.ctc_button = self.bb.addButton(_('&Copy to clipboard'),
                                                self.bb.ActionRole)
            self.ctc_button.clicked.connect(self.copy_to_clipboard)

        self.show_det_msg = _('Show &details')
        self.hide_det_msg = _('Hide &details')
        self.det_msg_toggle = self.bb.addButton(self.show_det_msg,
                                                self.bb.ActionRole)
        self.det_msg_toggle.clicked.connect(self.toggle_det_msg)
        self.det_msg_toggle.setToolTip(
            _('Show detailed information about this error'))

        self.copy_action = QAction(self)
        self.addAction(self.copy_action)
        self.copy_action.setShortcuts(QKeySequence.Copy)
        self.copy_action.triggered.connect(self.copy_to_clipboard)

        self.is_question = type_ == self.QUESTION
        if self.is_question:
            self.bb.setStandardButtons(self.bb.Yes | self.bb.No)
            self.bb.button(
                self.bb.Yes if default_yes else self.bb.No).setDefault(True)
            self.default_yes = default_yes
        else:
            self.bb.button(self.bb.Ok).setDefault(True)

        if not det_msg:
            self.det_msg_toggle.setVisible(False)

        self.do_resize()

    def toggle_det_msg(self, *args):
        vis = unicode(self.det_msg_toggle.text()) == self.hide_det_msg
        self.det_msg_toggle.setText(
            self.show_det_msg if vis else self.hide_det_msg)
        self.det_msg.setVisible(not vis)
        self.do_resize()

    def do_resize(self):
        sz = self.sizeHint() + QSize(100, 0)
        sz.setWidth(min(500, sz.width()))
        sz.setHeight(min(500, sz.height()))
        self.resize(sz)

    def copy_to_clipboard(self, *args):
        QApplication.clipboard().setText(
            'calibre, version %s\n%s: %s\n\n%s' %
            (__version__, unicode(self.windowTitle()), unicode(
                self.msg.text()), unicode(self.det_msg.toPlainText())))
        if hasattr(self, 'ctc_button'):
            self.ctc_button.setText(_('Copied'))

    def showEvent(self, ev):
        ret = QDialog.showEvent(self, ev)
        if self.is_question:
            try:
                self.bb.button(
                    self.bb.Yes if self.default_yes else self.bb.No).setFocus(
                        Qt.OtherFocusReason)
            except:
                pass  # Buttons were changed
        else:
            self.bb.button(self.bb.Ok).setFocus(Qt.OtherFocusReason)
        return ret

    def set_details(self, msg):
        if not msg:
            msg = ''
        self.det_msg.setPlainText(msg)
        self.det_msg_toggle.setText(self.show_det_msg)
        self.det_msg_toggle.setVisible(bool(msg))
        self.det_msg.setVisible(False)
        self.do_resize()
Ejemplo n.º 7
0
class HTMLViewerDialog(SizePersistedDialog, Ui_Dialog, Logger):
    marvin_device_status_changed = pyqtSignal(str)

    def accept(self):
        self._log_location()
        super(HTMLViewerDialog, self).accept()

    def close(self):
        self._log_location()
        super(HTMLViewerDialog, self).close()

    def copy_to_clipboard(self, *args):
        '''
        Store window contents to system clipboard
        '''
        modifiers = Application.keyboardModifiers()
        if bool(modifiers & Qt.AltModifier):
            contents = self.html_wv.page().currentFrame().toHtml()
            #contents = BeautifulSoup(str(contents)).prettify()
            QApplication.clipboard().setText(contents)
        else:
            contents = self.html_wv.page().currentFrame().toPlainText()
            QApplication.clipboard().setText(unicode(contents))

        if hasattr(self, 'ctc_button'):
            self.ctc_button.setText('Copied')
            self.ctc_button.setIcon(QIcon(I('ok.png')))

    def dispatch_button_click(self, button):
        '''
        BUTTON_ROLES = ['AcceptRole', 'RejectRole', 'DestructiveRole', 'ActionRole',
                        'HelpRole', 'YesRole', 'NoRole', 'ApplyRole', 'ResetRole']
        '''
        self._log_location()
        if self.bb.buttonRole(button) == QDialogButtonBox.AcceptRole:
            # Save content
            self.accept()

        elif self.bb.buttonRole(button) == QDialogButtonBox.ActionRole:
            if button.objectName() == 'refresh_button':
                self.refresh_custom_column()
            elif button.objectName() == 'copy_to_clipboard_button':
                self.copy_to_clipboard()

        elif self.bb.buttonRole(button) == QDialogButtonBox.RejectRole:
            # Cancelled
            self.close()

    def esc(self, *args):
        self.close()

    def initialize(self,
                   parent,
                   content,
                   book_id,
                   installed_book,
                   marvin_db_path,
                   use_qwv=True):
        '''
        __init__ is called on SizePersistedDialog()
        '''
        self.setupUi(self)
        self.book_id = book_id
        self.connected_device = parent.opts.gui.device_manager.device
        self.installed_book = installed_book
        self.marvin_db_path = marvin_db_path
        self.opts = parent.opts
        self.parent = parent
        self.stored_command = None
        self.verbose = parent.verbose
        self._log_location(installed_book.title)

        # Subscribe to Marvin driver change events
        self.connected_device.marvin_device_signals.reader_app_status_changed.connect(
            self.marvin_status_changed)

        # Set the icon
        self.setWindowIcon(self.parent.icon)

        # Set or hide the header
        if content['header']:
            self.header.setText(content['header'])
        else:
            self.header.setVisible(False)

        # Set the titles
        self.setWindowTitle(content['title'])
        self.html_gb.setTitle(content['group_box_title'])
        if content['toolTip']:
            self.html_gb.setToolTip(content['toolTip'])

        # Set the bg color of the content to the dialog bg color
        bgcolor = self.palette().color(QPalette.Background)
        palette = QPalette()
        palette.setColor(QPalette.Base, bgcolor)

        #self._log(repr(content['html_content']))

        # Initialize the window content
        if use_qwv:
            # Add a QWebView to layout
            self.html_wv = QWebView()
            self.html_wv.setHtml(content['html_content'])
            self.html_wv.sizeHint = self.wv_sizeHint
            self.html_wv.setSizePolicy(QSizePolicy.MinimumExpanding,
                                       QSizePolicy.MinimumExpanding)
            self.html_wv.page().setLinkDelegationPolicy(
                QWebPage.DelegateAllLinks)
            self.html_wv.linkClicked.connect(self.link_clicked)

            self.html_gb_vl.addWidget(self.html_wv)
            self.html_tb.setVisible(False)
        else:
            # Initialize the contents of the TextBrowser
            self.html_tb.setText(content['html_content'])
            #self.html_tb.setPalette(palette)

        # Set or hide the footer
        if content['footer']:
            self.footer.setText(content['footer'])
        else:
            self.footer.setVisible(False)

        # Add Copy to Clipboard button
        self.ctc_button = self.bb.addButton('&Copy to clipboard',
                                            self.bb.ActionRole)
        self.ctc_button.clicked.connect(self.copy_to_clipboard)
        self.ctc_button.setIcon(QIcon(I('edit-copy.png')))
        self.ctc_button.setObjectName('copy_to_clipboard_button')
        self.ctc_button.setToolTip(
            '<p>Copy plain text to clipboard, <b>Alt/Option-click</b> for HTML</p>'
        )

        self.copy_action = QAction(self)
        self.addAction(self.copy_action)
        self.copy_action.setShortcuts(QKeySequence.Copy)
        self.copy_action.triggered.connect(self.copy_to_clipboard)

        # Add Refresh button if enabled
        if content['refresh']:
            self.refresh_method = content['refresh']['method']
            self.refresh_button = self.bb.addButton(
                "Refresh '%s'" % content['refresh']['name'],
                self.bb.ActionRole)
            self.refresh_button.setIcon(
                QIcon(
                    os.path.join(self.parent.opts.resources_path, 'icons',
                                 'from_marvin.png')))
            self.refresh_button.setObjectName('refresh_button')
            self.refresh_button.setEnabled(bool(self.installed_book.cid))

        # Hook the button events
        self.bb.clicked.connect(self.dispatch_button_click)

        # Restore position
        self.resize_dialog()

    def link_clicked(self, url):
        '''
        Open clicked link in regular browser
        '''
        open_url(url)

    def marvin_status_changed(self, command):
        '''

        '''
        self.marvin_device_status_changed.emit(command)

        self._log_location(command)

        if command in ['disconnected', 'yanked']:
            self._log("closing dialog: %s" % command)
            self.close()

    def refresh_custom_column(self):
        '''
        If enabled, pass window content to custom column
        '''
        refresh = getattr(self.parent, self.refresh_method, None)
        if refresh is not None:
            refresh()
            self.refresh_button.setText('Refreshed')
            self.refresh_button.setIcon(QIcon(I('ok.png')))
        else:
            self._log_location("ERROR: Can't execute '%s'" %
                               self.refresh_method)

    def store_command(self, command):
        '''
        '''
        self._log_location(command)
        self.stored_command = command
        self.close()

    def wv_sizeHint(self):
        '''
        QWebVew apparently has a default size of 800, 600
        '''
        return QSize(400, 200)