/
InputAlert.py
137 lines (122 loc) · 4.58 KB
/
InputAlert.py
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import ui
class InputAlert(ui.View):
'''a ui that is added to the root view of a class, as a subview.
call input_alert() to simulate a modal dialog.
if cancel is selected, returns None.
note that input_alert must be called in a background thread, since it does not return until the dialog is closed.
also, note if view is closed while dialog is open, the dialog still returns.'''
def __init__(self):
from threading import Event
self.e=Event()
self.width=1
self.height=1
def input_alert(self,title='',
message='',
input='',
ok_button_title='ok',
hide_cancel_button=False):
#first, cover up view
#then
from threading import Timer
print threading.enumerate()
from thread import interrupt_main
self.e.clear()
for s in self.subviews:
self.remove_subview(s)
if self.superview:
dim=ui.View(frame=(0,0,self.superview.width, self.superview.height), bg_color=(0.5, 0.5, 0.5, 0.75))
inputbox=ui.View()
inputbox.width=300
inputbox.corner_radius=10
inputbox.bg_color='white'
inputbox.border_color='black'
inputbox.center = (dim.width/2,dim.height/2)
titlelabel = ui.Label()
titlelabel.text=title
titlelabel.alignment=ui.ALIGN_CENTER
titlelabel.font=('<system-bold>',14)
titlelabel.size_to_fit()
titlelabel.y=10
titlelabel.x=0
messagelabel = ui.Label()
messagelabel.text=message
messagelabel.alignment=ui.ALIGN_CENTER
messagelabel.font=('<system>',12)
messagelabel.x=0
messagelabel.y=titlelabel.height+titlelabel.y
messagelabel.size_to_fit()
inputfield = ui.TextField()
inputfield.text=input
inputfield.font=('<system>',12)
inputfield.height=titlelabel.height*1.5
inputfield.x=0.1*inputbox.width
inputfield.y=messagelabel.height + messagelabel.y
inputfield.width = .8*inputbox.width
inputfield.corner_radius=0
inputfield.border_width=1
inputfield.action=self.input_action
buttons=ui.SegmentedControl()
buttons.corner_radius=0
buttons.height=30
buttons.segments=('Cancel','Ok')
buttons.width=titlelabel.width=messagelabel.width=inputbox.width
buttons.width+=10
buttons.x-=5
buttons.y=inputfield.y+inputfield.height+10
buttons.action = self.button_action
inputbox.height = buttons.y+buttons.height-1
dim.add_subview(inputbox)
inputbox.add_subview(titlelabel)
inputbox.add_subview(messagelabel)
inputbox.add_subview(inputfield)
inputbox.add_subview(buttons)
self.superview.add_subview(dim)
self.bring_to_front()
dim.bring_to_front()
self.width=dim.width
self.height=dim.height
def check_if_onscreen():
if not self.on_screen:
self.e.set()
else:
Timer(0.25,check_if_onscreen).start()
check_if_onscreen()
self.e.wait()
self.superview.remove_subview(dim)
if not hide_cancel_button and buttons.selected_index==0:
rtnvalue=None
self.width=1
self.height=1
interrupt_main()
self.e.set()
else:
rtnvalue=inputfield.text
self.width=1
self.height=1
return rtnvalue
def button_action(self,sender):
self.e.set()
def input_action(self,sender):
self.e.set()
def get_top_view(self):
'''find root window'''
#find root window
root=self
while root.superview:
root=root.superview
return root
if __name__=='__main__':
v=ui.View(frame=(0,0, 500, 600))
b=ui.Button(frame=(20,20,100,100),bg_color='blue')
v.add_subview(b)
v.present('sheet')
i=InputAlert()
v.add_subview(i)
#b.bring_to_front()
@ui.in_background
def ia(sender):
#print threading.current_thread()
#print 'push'
b.bg_color= i.input_alert('enter a color','valid coloname','green')
b.action=ia
b.title='push'