def render_html(path_to_html, width=590, height=750, as_xhtml=True):
from PyQt5.QtWebKitWidgets import QWebPage
from PyQt5.Qt import QEventLoop, QPalette, Qt, QUrl, QSize
from calibre.gui2 import is_ok_to_use_qt, secure_web_page
if not is_ok_to_use_qt():
return None
path_to_html = os.path.abspath(path_to_html)
with CurrentDir(os.path.dirname(path_to_html)):
page = QWebPage()
settings = page.settings()
secure_web_page(settings)
pal = page.palette()
pal.setBrush(QPalette.Background, Qt.white)
page.setPalette(pal)
page.setViewportSize(QSize(width, height))
page.mainFrame().setScrollBarPolicy(Qt.Vertical, Qt.ScrollBarAlwaysOff)
page.mainFrame().setScrollBarPolicy(Qt.Horizontal, Qt.ScrollBarAlwaysOff)
loop = QEventLoop()
renderer = HTMLRenderer(page, loop)
page.loadFinished.connect(renderer, type=Qt.QueuedConnection)
if as_xhtml:
page.mainFrame().setContent(open(path_to_html, 'rb').read(),
'application/xhtml+xml', QUrl.fromLocalFile(path_to_html))
else:
page.mainFrame().load(QUrl.fromLocalFile(path_to_html))
loop.exec_()
renderer.loop = renderer.page = None
page.loadFinished.disconnect()
del page
del loop
if isinstance(renderer.exception, ParserError) and as_xhtml:
return render_html(path_to_html, width=width, height=height,
as_xhtml=False)
return renderer
def __init__(self, opts, log):
from calibre.gui2 import secure_web_page
self.log = log
QWebPage.__init__(self)
settings = self.settings()
secure_web_page(settings)
settings.setFontSize(QWebSettings.DefaultFontSize,
opts.pdf_default_font_size)
settings.setFontSize(QWebSettings.DefaultFixedFontSize,
opts.pdf_mono_font_size)
settings.setFontSize(QWebSettings.MinimumLogicalFontSize, 8)
settings.setFontSize(QWebSettings.MinimumFontSize, 8)
std = {'serif':opts.pdf_serif_family, 'sans':opts.pdf_sans_family,
'mono':opts.pdf_mono_family}.get(opts.pdf_standard_font,
opts.pdf_serif_family)
if std:
settings.setFontFamily(QWebSettings.StandardFont, std)
if opts.pdf_serif_family:
settings.setFontFamily(QWebSettings.SerifFont, opts.pdf_serif_family)
if opts.pdf_sans_family:
settings.setFontFamily(QWebSettings.SansSerifFont,
opts.pdf_sans_family)
if opts.pdf_mono_family:
settings.setFontFamily(QWebSettings.FixedFont, opts.pdf_mono_family)
def __init__(self):
self.log = default_log
QWebPage.__init__(self)
secure_web_page(self.settings())
self.js = None
self.evaljs = self.mainFrame().evaluateJavaScript
nam = self.networkAccessManager()
nam.setNetworkAccessible(nam.NotAccessible)
self.setLinkDelegationPolicy(self.DelegateAllLinks)
def __init__(self, parent):
QWebPage.__init__(self, parent)
settings = self.settings()
apply_settings(settings, config().parse())
settings.setMaximumPagesInCache(0)
secure_web_page(settings)
settings.setAttribute(settings.PrivateBrowsingEnabled, True)
settings.setAttribute(settings.LinksIncludedInFocusChain, False)
settings.setAttribute(settings.DeveloperExtrasEnabled, True)
settings.setDefaultTextEncoding('utf-8')
data = 'data:text/css;charset=utf-8;base64,'
css = '[data-in-split-mode="1"] [data-is-block="1"]:hover { cursor: pointer !important; border-top: solid 5px green !important }'
data += b64encode(css.encode('utf-8'))
settings.setUserStyleSheetUrl(QUrl(data))
self.setNetworkAccessManager(NetworkAccessManager(self))
self.setLinkDelegationPolicy(self.DelegateAllLinks)
self.mainFrame().javaScriptWindowObjectCleared.connect(self.init_javascript)
self.init_javascript()
def __init__(self, html, base_dir, width, height, dpi, factor):
'''
`width, height`: page width and height in pixels
`base_dir`: The directory in which the HTML file that contains the table resides
'''
from calibre.gui2 import secure_web_page
QObject.__init__(self)
self.app = None
self.width, self.height, self.dpi = width, height, dpi
self.base_dir = base_dir
self.images = []
self.tdir = tempfile.mkdtemp(prefix='calibre_render_table')
self.loop = QEventLoop()
self.page = QWebPage()
secure_web_page(self.page.settings())
self.page.loadFinished.connect(self.render_html)
self.page.mainFrame().setTextSizeMultiplier(factor)
self.page.mainFrame().setHtml(html,
QUrl('file:'+os.path.abspath(self.base_dir)))
def __init__(self, parent=None):
QWebView.__init__(self, parent)
self._parent = weakref.ref(parent)
self.readonly = False
self.comments_pat = re.compile(r'<!--.*?-->', re.DOTALL)
extra_shortcuts = {
'ToggleBold': 'Bold',
'ToggleItalic': 'Italic',
'ToggleUnderline': 'Underline',
}
for wac, name, icon, text, checkable in [
('ToggleBold', 'bold', 'format-text-bold', _('Bold'), True),
('ToggleItalic', 'italic', 'format-text-italic', _('Italic'),
True),
('ToggleUnderline', 'underline', 'format-text-underline',
_('Underline'), True),
('ToggleStrikethrough', 'strikethrough', 'format-text-strikethrough',
_('Strikethrough'), True),
('ToggleSuperscript', 'superscript', 'format-text-superscript',
_('Superscript'), True),
('ToggleSubscript', 'subscript', 'format-text-subscript',
_('Subscript'), True),
('InsertOrderedList', 'ordered_list', 'format-list-ordered',
_('Ordered list'), True),
('InsertUnorderedList', 'unordered_list', 'format-list-unordered',
_('Unordered list'), True),
('AlignLeft', 'align_left', 'format-justify-left',
_('Align left'), False),
('AlignCenter', 'align_center', 'format-justify-center',
_('Align center'), False),
('AlignRight', 'align_right', 'format-justify-right',
_('Align right'), False),
('AlignJustified', 'align_justified', 'format-justify-fill',
_('Align justified'), False),
('Undo', 'undo', 'edit-undo', _('Undo'), False),
('Redo', 'redo', 'edit-redo', _('Redo'), False),
('RemoveFormat', 'remove_format', 'edit-clear', _('Remove formatting'), False),
('Copy', 'copy', 'edit-copy', _('Copy'), False),
('Paste', 'paste', 'edit-paste', _('Paste'), False),
('Cut', 'cut', 'edit-cut', _('Cut'), False),
('Indent', 'indent', 'format-indent-more',
_('Increase Indentation'), False),
('Outdent', 'outdent', 'format-indent-less',
_('Decrease Indentation'), False),
('SelectAll', 'select_all', 'edit-select-all',
_('Select all'), False),
]:
ac = PageAction(wac, icon, text, checkable, self)
setattr(self, 'action_'+name, ac)
ss = extra_shortcuts.get(wac, None)
if ss:
ac.setShortcut(QKeySequence(getattr(QKeySequence, ss)))
if wac == 'RemoveFormat':
ac.triggered.connect(self.remove_format_cleanup,
type=Qt.QueuedConnection)
self.action_color = QAction(QIcon(I('format-text-color.png')), _('Foreground color'),
self)
self.action_color.triggered.connect(self.foreground_color)
self.action_background = QAction(QIcon(I('format-fill-color.png')),
_('Background color'), self)
self.action_background.triggered.connect(self.background_color)
self.action_block_style = QAction(QIcon(I('format-text-heading.png')),
_('Style text block'), self)
self.action_block_style.setToolTip(
_('Style the selected text block'))
self.block_style_menu = QMenu(self)
self.action_block_style.setMenu(self.block_style_menu)
self.block_style_actions = []
for text, name in [
(_('Normal'), 'p'),
(_('Heading') +' 1', 'h1'),
(_('Heading') +' 2', 'h2'),
(_('Heading') +' 3', 'h3'),
(_('Heading') +' 4', 'h4'),
(_('Heading') +' 5', 'h5'),
(_('Heading') +' 6', 'h6'),
(_('Pre-formatted'), 'pre'),
(_('Blockquote'), 'blockquote'),
(_('Address'), 'address'),
]:
ac = BlockStyleAction(text, name, self)
self.block_style_menu.addAction(ac)
self.block_style_actions.append(ac)
self.action_insert_link = QAction(QIcon(I('insert-link.png')),
_('Insert link or image'), self)
self.action_insert_link.triggered.connect(self.insert_link)
self.pageAction(QWebPage.ToggleBold).changed.connect(self.update_link_action)
self.action_insert_link.setEnabled(False)
self.action_clear = QAction(QIcon(I('trash.png')), _('Clear'), self)
self.action_clear.triggered.connect(self.clear_text)
self.page().setLinkDelegationPolicy(QWebPage.DelegateAllLinks)
self.page().linkClicked.connect(self.link_clicked)
secure_web_page(self.page().settings())
self.setHtml('')
self.set_readonly(False)
def __init__(self, parent=None):
QWebView.__init__(self, parent)
self.base_url = None
self._parent = weakref.ref(parent)
self.readonly = False
self.comments_pat = re.compile(r'<!--.*?-->', re.DOTALL)
extra_shortcuts = {
'ToggleBold': 'Bold',
'ToggleItalic': 'Italic',
'ToggleUnderline': 'Underline',
}
for wac, name, icon, text, checkable in [
('ToggleBold', 'bold', 'format-text-bold', _('Bold'), True),
('ToggleItalic', 'italic', 'format-text-italic', _('Italic'),
True),
('ToggleUnderline', 'underline', 'format-text-underline',
_('Underline'), True),
('ToggleStrikethrough', 'strikethrough',
'format-text-strikethrough', _('Strikethrough'), True),
('ToggleSuperscript', 'superscript', 'format-text-superscript',
_('Superscript'), True),
('ToggleSubscript', 'subscript', 'format-text-subscript',
_('Subscript'), True),
('InsertOrderedList', 'ordered_list', 'format-list-ordered',
_('Ordered list'), True),
('InsertUnorderedList', 'unordered_list', 'format-list-unordered',
_('Unordered list'), True),
('AlignLeft', 'align_left', 'format-justify-left', _('Align left'),
False),
('AlignCenter', 'align_center', 'format-justify-center',
_('Align center'), False),
('AlignRight', 'align_right', 'format-justify-right',
_('Align right'), False),
('AlignJustified', 'align_justified', 'format-justify-fill',
_('Align justified'), False),
('Undo', 'undo', 'edit-undo', _('Undo'), False),
('Redo', 'redo', 'edit-redo', _('Redo'), False),
('RemoveFormat', 'remove_format', 'edit-clear',
_('Remove formatting'), False),
('Copy', 'copy', 'edit-copy', _('Copy'), False),
('Paste', 'paste', 'edit-paste', _('Paste'), False),
('Cut', 'cut', 'edit-cut', _('Cut'), False),
('Indent', 'indent', 'format-indent-more',
_('Increase indentation'), False),
('Outdent', 'outdent', 'format-indent-less',
_('Decrease indentation'), False),
('SelectAll', 'select_all', 'edit-select-all', _('Select all'),
False),
]:
ac = PageAction(wac, icon, text, checkable, self)
setattr(self, 'action_' + name, ac)
ss = extra_shortcuts.get(wac, None)
if ss:
ac.setShortcut(QKeySequence(getattr(QKeySequence, ss)))
if wac == 'RemoveFormat':
ac.triggered.connect(self.remove_format_cleanup,
type=Qt.QueuedConnection)
self.action_color = QAction(QIcon(I('format-text-color.png')),
_('Foreground color'), self)
self.action_color.triggered.connect(self.foreground_color)
self.action_background = QAction(QIcon(I('format-fill-color.png')),
_('Background color'), self)
self.action_background.triggered.connect(self.background_color)
self.action_block_style = QAction(QIcon(I('format-text-heading.png')),
_('Style text block'), self)
self.action_block_style.setToolTip(_('Style the selected text block'))
self.block_style_menu = QMenu(self)
self.action_block_style.setMenu(self.block_style_menu)
self.block_style_actions = []
for text, name in [
(_('Normal'), 'p'),
(_('Heading') + ' 1', 'h1'),
(_('Heading') + ' 2', 'h2'),
(_('Heading') + ' 3', 'h3'),
(_('Heading') + ' 4', 'h4'),
(_('Heading') + ' 5', 'h5'),
(_('Heading') + ' 6', 'h6'),
(_('Pre-formatted'), 'pre'),
(_('Blockquote'), 'blockquote'),
(_('Address'), 'address'),
]:
ac = BlockStyleAction(text, name, self)
self.block_style_menu.addAction(ac)
self.block_style_actions.append(ac)
self.action_insert_link = QAction(QIcon(I('insert-link.png')),
_('Insert link or image'), self)
self.action_insert_hr = QAction(QIcon(I('format-text-hr.png')),
_('Insert separator'), self)
self.action_insert_link.triggered.connect(self.insert_link)
self.action_insert_hr.triggered.connect(self.insert_hr)
self.pageAction(QWebPage.ToggleBold).changed.connect(
self.update_link_action)
self.action_insert_link.setEnabled(False)
self.action_insert_hr.setEnabled(False)
self.action_clear = QAction(QIcon(I('trash.png')), _('Clear'), self)
self.action_clear.triggered.connect(self.clear_text)
self.page().setLinkDelegationPolicy(QWebPage.DelegateAllLinks)
self.page().linkClicked.connect(self.link_clicked)
secure_web_page(self.page().settings())
self.setHtml('')
self.set_readonly(False)