def goForward(self):
index = wait(self.get('selectedIndex'))
yield index
index = index.getResult()
if index + 1 < len(self.children):
index = wait(self.set('selectedIndex', index + 1))
yield index
index = index.getResult()
yield index
else:
yield None
def goBack(self):
index = wait(self.get('selectedIndex'))
yield index
index = index.getResult()
if index != 0:
index = wait(self.set('selectedIndex', index - 1))
yield index
index = index.getResult()
yield index
else:
yield None
def _updateBackForward(self, curIndex):
if curIndex == 0 and self.curCanGoBack:
self.curCanGoBack = False
yield wait(self.dispatch(signal.canGoBack, False))
elif curIndex != 0 and not self.curCanGoBack:
self.curCanGoBack = True
yield wait(self.dispatch(signal.canGoBack, True))
if curIndex + 1 == len(self.children) and self.curCanGoForward:
self.curCanGoForward = False
yield wait(self.dispatch(signal.canGoForward, False))
elif curIndex + 1 < len(self.children) and not self.curCanGoForward:
self.curCanGoForward = True
yield wait(self.dispatch(signal.canGoForward, True))
yield curIndex
def dimensions(self):
"""dimensions() -> deferred (width, height) of window"""
yield wait(DeferredList([
self.getAttr(u'width'),
self.getAttr(u'height'),
]))
yield tuple(result for success, result in results)
def addPage(self, page):
# First, remove pages beyond the current index.
index = wait(self.get('selectedIndex'))
yield index
index = index.getResult()
toRemove = self.children[index + 1:]
yield wait(DeferredList([
self.removePage(rpage) for rpage in toRemove
]))
# Next, add the new page.
index = wait(std.Deck.addPage(self, page))
yield index
index = index.getResult()
# Select the page after adding it.
yield wait(self.set('selectedIndex', index))
# Update back/forward.
yield wait(self._updateBackForward(index))
yield index
def setTitle(self, title):
"""setTitle(title) -> deferred title of window."""
# Set the `title` attribute of the XUL window, and also set
# the title of the browser window.
yield wait(DeferredList([
self.setAttr(u'title', title),
self.pageCtx.callRemote('setWindowTitle', title),
]))
yield title
def get(self, attr, default=u''):
"""Get the value of a remote attribute."""
if not self.alive:
yield self.kwargs.get(attr, default)
else:
value = wait(self.callGlobal(
'getAttr', self.id, attr.decode('ascii')))
yield value
value = value.getResult()
yield value[0][0]
def setDimensions(self, width=None, height=None):
"""setDimensions(width, height) -> deferred (width, height) of
window"""
if not width or not height:
# Get existing dimensions.
dimensions = wait(self.dimensions())
yield dimensions
dimensions = dimensions.getResult()
# Update new dimensions as necessary.
curWidth, curHeight = dimensions
width = width or curWidth
height = height or curHeight
# Set the height and width of the XUL window, and resize the
# browser window.
yield wait(DeferredList([
self.setAttr(u'width', width),
self.setAttr(u'height', height),
self.pageCtx.callRemote(u'resizeWindow', width, height),
]))
yield (width, height)
def dispatch(self, signal, *args):
"""Dispatch ``signal`` with optional ``args`` to listeners.
Returns a deferred that calls back with a list of
(receiver, result) tuples after all receivers have finished.
"""
receiver_results = louie.send_minimal(signal, self, *args)
results = []
for receiver, result in receiver_results:
if isinstance(result, Deferred):
result = wait(result)
yield result
result = result.getResult()
results.append((receiver, result))
yield results
def on_jsOncommand(self):
value = wait(self.get('value'))
yield value
value = value.getResult()
self.dispatch(signal.itemSelected, value)
yield None
def addPage(self, page):
"""Returns the index of ``page`` after adding it."""
yield wait(self.liveAppend(page))
yield self.children.index(page)
