Cutlery/calibre
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Add Edit virtual library and allow creating a temporary VL from the current search

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This commit is contained in:
Kovid Goyal 2013-04-12 15:53:53 +05:30
commit 363af0a5f2
1 changed files with 109 additions and 52 deletions
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161
src/calibre/gui2/search_restriction_mixin.py
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@ -44,15 +44,46 @@ class SelectNames(QDialog): # {{{
yield unicode(item.data(Qt.DisplayRole).toString())
# }}}
MAX_VIRTUAL_LIBRARY_NAME_LENGTH = 40
def _build_full_search_string(gui):
search_templates = (
'',
'{cl}',
'{cr}',
'(({cl}) and ({cr}))',
'{sb}',
'(({cl}) and ({sb}))',
'(({cr}) and ({sb}))',
'(({cl}) and ({cr}) and ({sb}))'
)
sb = gui.search.current_text
db = gui.current_db
cr = db.data.get_search_restriction()
cl = db.data.get_base_restriction()
dex = 0
if sb:
dex += 4
if cr:
dex += 2
if cl:
dex += 1
template = search_templates[dex]
return template.format(cl=cl, cr=cr, sb=sb).strip()
class CreateVirtualLibrary(QDialog): # {{{
def __init__(self, gui, existing_names):
def __init__(self, gui, existing_names, editing=None):
QDialog.__init__(self, gui)
self.gui = gui
self.existing_names = existing_names
self.setWindowTitle(_('Create virtual library'))
if editing:
self.setWindowTitle(_('Edit virtual library'))
else:
self.setWindowTitle(_('Create virtual library'))
self.setWindowIcon(QIcon(I('lt.png')))
gl = QGridLayout()
@ -60,15 +91,19 @@ class CreateVirtualLibrary(QDialog): # {{{
self.la1 = la1 = QLabel(_('Virtual library &name:'))
gl.addWidget(la1, 0, 0)
self.vl_name = QLineEdit()
self.vl_name.setMaxLength(MAX_VIRTUAL_LIBRARY_NAME_LENGTH)
la1.setBuddy(self.vl_name)
gl.addWidget(self.vl_name, 0, 1)
self.editing = editing
if editing:
self.vl_name.setText(editing)
self.la2 = la2 = QLabel(_('&Search expression:'))
gl.addWidget(la2, 1, 0)
self.vl_text = QLineEdit()
la2.setBuddy(self.vl_text)
gl.addWidget(self.vl_text, 1, 1)
self.vl_text.setText(self.build_full_search_string())
self.vl_text.setText(_build_full_search_string(self.gui))
self.sl = sl = QLabel('<p>'+_('Create a virtual library based on: ')+
('<a href="author.{0}">{0}</a>, '
@ -102,6 +137,11 @@ class CreateVirtualLibrary(QDialog): # {{{
bb.rejected.connect(self.reject)
gl.addWidget(bb, 4, 0, 1, 0)
if editing:
db = self.gui.current_db
virt_libs = db.prefs.get('virtual_libraries', {})
self.vl_text.setText(virt_libs.get(editing, ''))
self.resize(self.sizeHint()+QSize(150, 25))
def link_activated(self, url):
@ -116,48 +156,28 @@ class CreateVirtualLibrary(QDialog): # {{{
self.vl_name.setText(d.names.next())
self.vl_text.setText(' or '.join(search))
def build_full_search_string(self):
search_templates = (
'',
'{cl}',
'{cr}',
'(({cl}) and ({cr}))',
'{sb}',
'(({cl}) and ({sb}))',
'(({cr}) and ({sb}))',
'(({cl}) and ({cr}) and ({sb}))'
)
sb = self.gui.search.current_text
db = self.gui.current_db
cr = db.data.get_search_restriction()
cl = db.data.get_base_restriction()
dex = 0
if sb:
dex += 4
if cr:
dex += 2
if cl:
dex += 1
template = search_templates[dex]
return template.format(cl=cl, cr=cr, sb=sb)
def accept(self):
n = unicode(self.vl_name.text())
n = unicode(self.vl_name.text()).strip()
if not n:
error_dialog(self.gui, _('No name'),
_('You must provide a name for the new virtual library'),
show=True)
return
if n in self.existing_names:
if n.startswith('*'):
error_dialog(self.gui, _('Invalid name'),
_('A virtual library name cannot begin with "*"'),
show=True)
return
if n in self.existing_names and n != self.editing:
if question_dialog(self.gui, _('Name already in use'),
_('That name is already in use. Do you want to replace it '
'with the new search?'),
default_yes=False) == self.Rejected:
return
v = unicode(self.vl_text.text())
v = unicode(self.vl_text.text()).strip()
if not v:
error_dialog(self.gui, _('No search string'),
_('You must provide a search to define the new virtual library'),
@ -192,6 +212,8 @@ class SearchRestrictionMixin(object):
def __init__(self):
self.checked = QIcon(I('ok.png'))
self.empty = QIcon()
self.search_based_vl_name = None
self.search_based_vl = None
self.virtual_library_menu = QMenu()
@ -211,32 +233,31 @@ class SearchRestrictionMixin(object):
virt_libs[name] = search
db.prefs.set('virtual_libraries', virt_libs)
def do_create(self):
def do_create_edit(self, editing=None):
db = self.library_view.model().db
virt_libs = db.prefs.get('virtual_libraries', {})
cd = CreateVirtualLibrary(self, virt_libs.keys())
cd = CreateVirtualLibrary(self, virt_libs.keys(), editing=editing)
if cd.exec_() == cd.Accepted:
if editing:
self._remove_vl(editing, reapply=False)
self.add_virtual_library(db, cd.library_name, cd.library_search)
self.apply_virtual_library(cd.library_name)
def do_remove(self):
db = self.library_view.model().db
db.data.set_base_restriction("")
db.data.set_base_restriction_name("")
self._apply_search_restriction(db.data.get_search_restriction(),
db.data.get_search_restriction_name())
def virtual_library_clicked(self):
m = self.virtual_library_menu
m.clear()
a = m.addAction(_('Create Virtual Library'))
a.triggered.connect(self.do_create)
a.setToolTip(_('Create a new virtual library from the results of a search'))
a.triggered.connect(partial(self.do_create_edit, editing=None))
self.edit_menu = a = QMenu()
a.setTitle(_('Edit Virtual Library'))
a.aboutToShow.connect(partial(self.build_virtual_library_list, remove=False))
m.addMenu(a)
self.rm_menu = a = QMenu()
a.setTitle(_('Remove Virtual Library'))
a.aboutToShow.connect(self.build_virtual_library_list)
a.aboutToShow.connect(partial(self.build_virtual_library_list, remove=True))
m.addMenu(a)
m.addSeparator()
@ -259,10 +280,20 @@ class SearchRestrictionMixin(object):
a = m.addAction(self.empty, self.no_restriction)
a.triggered.connect(partial(self.apply_virtual_library, library=''))
a = m.addAction(self.empty, _('*current search'))
a.triggered.connect(partial(self.apply_virtual_library, library='*'))
if self.search_based_vl_name:
a = m.addAction(
self.checked if db.data.get_base_restriction_name().startswith('*')
else self.empty,
self.search_based_vl_name)
a.triggered.connect(partial(self.apply_virtual_library,
library=self.search_based_vl_name))
virt_libs = db.prefs.get('virtual_libraries', {})
for vl in sorted(virt_libs.keys(), key=sort_key):
a = m.addAction(self.checked if vl == current_lib else self.empty, vl)
a.setToolTip(virt_libs[vl])
a.triggered.connect(partial(self.apply_virtual_library, library=vl))
p = QPoint(0, self.virtual_library.height())
@ -274,22 +305,41 @@ class SearchRestrictionMixin(object):
if not library:
db.data.set_base_restriction('')
db.data.set_base_restriction_name('')
elif library == '*':
if not _build_full_search_string(self):
error_dialog(self, _('No search'),
_('There is no current search to use'), show=True)
return
self.search_based_vl = _build_full_search_string(self)
db.data.set_base_restriction(self.search_based_vl)
self.search_based_vl_name = self._trim_restriction_name(
'*' + self.search_based_vl)
db.data.set_base_restriction_name(self.search_based_vl_name)
elif library == self.search_based_vl_name:
db.data.set_base_restriction(self.search_based_vl)
db.data.set_base_restriction_name(self.search_based_vl_name)
elif library in virt_libs:
db.data.set_base_restriction(virt_libs[library])
db.data.set_base_restriction_name(library)
self._apply_search_restriction(db.data.get_search_restriction(),
db.data.get_search_restriction_name())
def build_virtual_library_list(self):
def build_virtual_library_list(self, remove=False):
db = self.library_view.model().db
virt_libs = db.prefs.get('virtual_libraries', {})
m = self.rm_menu
if remove:
m = self.rm_menu
else:
m = self.edit_menu
m.clear()
def add_action(name, search):
a = m.addAction(name)
a.setToolTip(search)
a.triggered.connect(partial(self.remove_vl_triggered, name=name))
if remove:
a.triggered.connect(partial(self.remove_vl_triggered, name=name))
else:
a.triggered.connect(partial(self.do_create_edit, editing=name))
for n in sorted(virt_libs.keys(), key=sort_key):
add_action(n, virt_libs[n])
@ -300,13 +350,19 @@ class SearchRestrictionMixin(object):
'the virtual library {0}').format(name),
default_yes=False):
return
self._remove_vl(name, reapply=True)
def _remove_vl(self, name, reapply=True):
db = self.library_view.model().db
virt_libs = db.prefs.get('virtual_libraries', {})
virt_libs.pop(name, None)
db.prefs.set('virtual_libraries', virt_libs)
if db.data.get_base_restriction_name() == name:
if reapply and db.data.get_base_restriction_name() == name:
self.apply_virtual_library('')
def _trim_restriction_name(self, name):
return name[0:MAX_VIRTUAL_LIBRARY_NAME_LENGTH].strip()
def build_search_restriction_list(self):
m = self.ar_menu
m.clear()
@ -324,6 +380,7 @@ class SearchRestrictionMixin(object):
def add_action(txt, index):
self.search_restriction.addItem(txt)
txt = self._trim_restriction_name(txt)
if txt == current_restriction:
a = m.addAction(self.checked, txt if txt else self.no_restriction)
else:
@ -332,7 +389,7 @@ class SearchRestrictionMixin(object):
action=a, index=index))
add_action('', 0)
add_action('*current search', 1)
add_action(_('*current search'), 1)
dex = 2
if current_restriction_text:
add_action(current_restriction_text, 2)
@ -372,7 +429,7 @@ class SearchRestrictionMixin(object):
else:
self.search_restriction.insertItem(2, s)
self.search_restriction.setCurrentIndex(2)
self._apply_search_restriction(search, s)
self._apply_search_restriction(search, self._trim_restriction_name(s))
def apply_search_restriction(self, i):
if i == 1: