def _get_keyboard(self):
if not self._keyboard:
self._keyboard = self.group['keyboard']
if self._keyboard is None:
self._keyboard = MTVKeyboard()
self.group['keyboard'] = self._keyboard
return self._keyboard
class MTTextInput(MTButton):
'''
A text input widget is a simple label widget that will pop up
a virtual keyboard when touched any input of the virtual keyboard
will then have effect on the TextInput widget.
:Parameters:
`keyboard`: MTVkeyboard object, default to None
Use another MTVKeyboard than the default one
`password`: bool, default to False
If True, the label will be showed with star
`group`: str, default to random
If the group is the same for multiple text input
You can switch between them with TAB, and use the same keyboard.
:Events:
`on_text_change` (text)
Fired when the content of text input is changed
`on_text_validate` ()
Fired when the text is validate (when ENTER is hit on keyboard)
'''
_group_id = 0
_group = {}
def __init__(self, **kwargs):
kwargs.setdefault('anchor_x', 'left')
kwargs.setdefault('anchor_y', 'center')
kwargs.setdefault('halign', 'left')
kwargs.setdefault('keyboard', None)
kwargs.setdefault('password', False)
kwargs.setdefault('group', None)
super(MTTextInput, self).__init__(**kwargs)
self._keyboard = kwargs.get('keyboard')
self.is_active_input = False
self.password = kwargs.get('password')
# initialize group on random if nothing is set
self._groupname = kwargs.get('group')
if self._groupname is None:
self._group_id += 1
self._groupname = 'uniqgroup%d' % self._group_id
# first time ? create the group
if not self._groupname in self._group:
self.group['keyboard'] = None
self.group['widgets'] = []
self.group['widgets'].append(self)
self.register_event_type('on_text_change')
self.register_event_type('on_text_validate')
# save original color for error
self._notify_bg_color = self.style['bg-color']
self._notify_bg_color_active = self.style['bg-color-active']
self._notify_animation = None
def _get_keyboard(self):
if not self._keyboard:
self._keyboard = self.group['keyboard']
if self._keyboard is None:
self._keyboard = MTVKeyboard()
self.group['keyboard'] = self._keyboard
return self._keyboard
def _set_keyboard(self, value):
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard = value
keyboard = property(_get_keyboard, _set_keyboard)
def on_press(self, touch):
if self.is_active_input:
self.hide_keyboard()
else:
self.show_keyboard()
def _kbd_on_text_change(self, value):
self.label = value
self.dispatch_event('on_text_change', value)
def _kbd_on_key_up(self, key):
displayed_str, internal_str, internal_action, scale = key
if internal_action is None:
return
elif internal_action == 'enter':
self.hide_keyboard()
self.dispatch_event('on_text_validate')
elif internal_action == 'escape':
self.hide_keyboard()
def on_text_validate(self):
pass
def on_text_change(self, text):
pass
@property
def group(self):
'''Return information (keyboard/widget list) from the current
group of the widget'''
if not self._groupname in self._group:
self._group[self._groupname] = {}
return self._group[self._groupname]
def notify_error(self):
'''Call this function to make animation on background as an error
'''
error_color = self.style['bg-color-error']
if self._notify_animation is not None:
self._notify_animation.stop()
self.style['bg-color'] = self._notify_bg_color
self.style['bg-color-active'] = self._notify_bg_color_active
self._notify_animation = self.do(Animation(
style={'bg-color': error_color, 'bg-color-active': error_color},
f=lambda x: 1 - AnimationAlpha.ease_in_out_quart(x)))
def deactivate_group(self):
'''Deactivate all widgets in the group'''
for w in self.group['widgets']:
w.hide_keyboard()
def focus_next(self):
'''Focus the next textinput in the list'''
idx = (self.group['widgets'].index(self) + 1)
idx = idx % len(self.group['widgets'])
widget = self.group['widgets'][idx]
widget.show_keyboard()
def show_keyboard(self):
'''Show the associed keyboard of this widget.'''
if self.is_active_input:
return
self.deactivate_group()
w = self.get_parent_window()
w.add_widget(self.keyboard)
w = self.get_root_window()
w.push_handlers(on_keyboard=self._window_on_keyboard)
self.is_active_input = True
if self._keyboard is not None:
self._keyboard.push_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard.text = self.label
def hide_keyboard(self):
'''Hide the associed keyboard of this widget.'''
if not self.is_active_input:
return
w = self.get_parent_window()
w.remove_widget(self.keyboard)
w = self.get_root_window()
w.remove_handlers(on_keyboard=self._window_on_keyboard)
self.is_active_input = False
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
def draw(self):
if self.is_active_input:
set_color(*self.style.get('bg-color'))
kx, ky = self.keyboard.to_window(*self.keyboard.center)
kx, ky = self.to_widget(kx, ky)
drawLine([self.center[0], self.center[1], kx, ky])
if self.password:
pw = '*' * len(self.label)
old_label = self.label
self.label = pw
super(MTTextInput, self).draw()
if self.password:
self.label = old_label
def draw_background(self):
if self.is_active_input:
set_color(*self.style.get('bg-color'))
drawCSSRectangle(pos=self.pos, size=self.size, style=self.style,
state='active')
else:
set_color(*self.style.get('bg-color'))
drawCSSRectangle(pos=self.pos, size=self.size, style=self.style)
def _window_on_keyboard(self, key, scancode=None, unicode=None):
if key == 27: # escape
self.hide_keyboard()
return True
elif key == 9: # tab
self.focus_next()
elif key == 8: # backspace
key = (None, None, 'backspace', 1)
self.keyboard.dispatch_event('on_key_down', key)
self.keyboard.dispatch_event('on_key_up', key)
elif key in (13, 271): # enter or numenter
key = (None, None, 'enter', 1)
self.keyboard.dispatch_event('on_key_down', key)
self.keyboard.dispatch_event('on_key_up', key)
else:
if unicode is not None:
self.keyboard.text = self.keyboard.text + unicode
else:
# oh god :[
self.keyboard.text = self.keyboard.text + chr(key)
def _get_value(self):
return self.label
def _set_value(self, value):
self.label = value
value = property(_get_value, _set_value)
class MTTextInput(MTButton):
'''
A text input widget is a simple label widget that will pop up
a virtual keyboard when touched any input of the virtual keyboard
will then have effect on the TextInput widget.
:Parameters:
`keyboard` : MTVkeyboard object, default to None
Use another MTVKeyboard than the default one
:Events:
`on_text_change` (text)
Fired when the content of text input is changed
`on_text_validate` ()
Fired when the text is validate (when ENTER is hit on keyboard)
'''
def __init__(self, **kwargs):
kwargs.setdefault('anchor_x', 'left')
kwargs.setdefault('anchor_y', 'bottom')
kwargs.setdefault('keyboard', None)
super(MTTextInput, self).__init__(**kwargs)
self._keyboard = kwargs.get('keyboard')
self.original_width = self.width
self.is_active_input = False
self.padding = 20
self.register_event_type('on_text_change')
self.register_event_type('on_text_validate')
def _get_keyboard(self):
if not self._keyboard:
self._keyboard = MTVKeyboard()
return self._keyboard
def _set_keyboard(self, value):
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard = value
keyboard = property(_get_keyboard, _set_keyboard)
def on_press(self, touch):
if self.is_active_input:
self.hide_keyboard()
else:
self.show_keyboard()
def reposition(self):
self.label_obj.text = self.label
self.label_obj.x = self.x + self.padding
self.label_obj.y = self.y
self.width = self.label_obj.content_width + self.padding * 2
if self.width < self.original_width:
self.width = self.original_width
def on_move(self, w, h):
self.reposition()
def _kbd_on_text_change(self, value):
self.label = value
self.reposition()
self.dispatch_event('on_text_change', value)
def _kbd_on_key_up(self, key):
displayed_str, internal_str, internal_action, scale = key
if internal_action is None:
return
elif internal_action == 'enter':
self.hide_keyboard()
self.dispatch_event('on_text_validate')
elif internal_action == 'escape':
self.hide_keyboard()
def on_text_validate(self):
pass
def on_text_change(self, text):
pass
def show_keyboard(self):
'''Show the associed keyboard of this widget.'''
if self.is_active_input:
return
w = self.get_parent_window()
w.add_widget(self.keyboard)
w = self.get_root_window()
w.push_handlers(on_keyboard=self._window_on_keyboard)
self.is_active_input = True
if self._keyboard is not None:
self._keyboard.push_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard.text = self.label
def hide_keyboard(self):
'''Hide the associed keyboard of this widget.'''
if not self.is_active_input:
return
w = self.get_parent_window()
w.remove_widget(self.keyboard)
w = self.get_root_window()
w.remove_handlers(on_keyboard=self._window_on_keyboard)
self.is_active_input = False
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
def draw(self):
if self.is_active_input:
set_color(*self.style.get('bg-color'))
kx, ky = self.keyboard.to_window(*self.keyboard.center)
kx, ky = self.to_widget(kx, ky)
drawLine([self.center[0], self.center[1], kx, ky])
if self.state[0] == 'down':
set_color(0.5,0.5,0.5,0.5)
drawCSSRectangle((self.x,self.y) , (self.width, self.height), style=self.style)
else:
set_color(*self.style.get('bg-color'))
drawCSSRectangle((self.x,self.y) , (self.width, self.height), style=self.style)
self.label_obj.draw()
def _window_on_keyboard(self, key, scancode=None, unicode=None):
if key == 27: # escape
self.hide_keyboard()
return True
elif key == 8: # backspace
key = (None, None, 'backspace', 1)
self.keyboard.dispatch_event('on_key_down', key)
self.keyboard.dispatch_event('on_key_up', key)
elif key in (13, 271): # enter or numenter
key = (None, None, 'enter', 1)
self.keyboard.dispatch_event('on_key_down', key)
self.keyboard.dispatch_event('on_key_up', key)
else:
if unicode is not None:
self.keyboard.text = self.keyboard.text + unicode
else:
# oh god :[
self.keyboard.text = self.keyboard.text + chr(key)
def _get_keyboard(self):
if not self._keyboard:
self._keyboard = MTVKeyboard()
return self._keyboard
class MTTextInput(MTButton):
'''
A text input widget is a simple label widget that will pop up
a virtual keyboard when touched any input of the virtual keyboard
will then have effect on the TextInput widget.
:Parameters:
`keyboard`: MTVkeyboard object, default to None
Use another MTVKeyboard than the default one
`keyboard_to_root`: bool, defaults to False.
Indicate whether the keyboard should be attached to the root
window. If True, this will have the effect of the keyboard being
raised above other widgets.
`keyboard_type`: str, default to config.
Configuration section is 'widgets', token 'keyboard_type'.
Can be one of 'virtual' or 'real'. If real, the virtual keyboard
will be not showed
`password`: bool, default to False
If True, the label will be showed with star
`group`: str, default to random
If the group is the same for multiple text input
You can switch between them with TAB, and use the same keyboard.
`switch`: bool, default to True
If True, a switch button will be show to switch from real or virtual
keyboard
:Events:
`on_text_change` (text)
Fired when the content of text input is changed
`on_text_validate` ()
Fired when the text is validate (when ENTER is hit on keyboard)
'''
_group_id = 0
_group = {}
def __init__(self, **kwargs):
kwargs.setdefault('anchor_x', 'left')
kwargs.setdefault('anchor_y', 'center')
kwargs.setdefault('halign', 'left')
kwargs.setdefault('keyboard', None)
kwargs.setdefault('keyboard_to_root', False)
kwargs.setdefault('password', False)
kwargs.setdefault('group', None)
kwargs.setdefault('switch', True)
kwargs.setdefault('keyboard_type',
pymt_config.get('widgets', 'keyboard_type'))
super(MTTextInput, self).__init__(**kwargs)
self._keyboard = kwargs.get('keyboard')
self.is_active_input = False
self.password = kwargs.get('password')
# initialize group on random if nothing is set
self._groupname = kwargs.get('group')
if self._groupname is None:
MTTextInput._group_id += 1
self._groupname = 'uniqgroup%d' % MTTextInput._group_id
# first time ? create the group
if not self._groupname in self._group:
self.group['keyboard'] = None
self.group['widgets'] = []
self.group['widgets'].append(self)
self.register_event_type('on_text_change')
self.register_event_type('on_text_validate')
# save original color for error
self._notify_bg_color = self.style['bg-color']
self._notify_bg_color_active = self.style['bg-color-active']
self._notify_animation = None
# switch button between vkeyboard or hardware
self._switch = None
if kwargs.get('switch'):
self._switch = MTButton(
label=kwargs.get('keyboard_type'), cls='switch-button',
size=(60, 20), font_size=5,
pos=(self.x + self.width - 60, self.y + self.height))
self.keyboard_type = kwargs.get('keyboard_type')
self.keyboard_to_root = kwargs.get('keyboard_to_root')
self.interesting_keys = {8: 'backspace', 13: 'enter', 127: 'del',
271: 'enter', 273: 'cursor_up', 274: 'cursor_down',
275: 'cursor_right', 276: 'cursor_left',
278: 'cursor_home', 279: 'cursor_end',
280: 'cursor_pgup', 281: 'cursor_pgdown'}
def on_resize(self, *largs):
if hasattr(self, '_switch'):
self._switch.pos = self.x + self.width - 60, self.y + self.height
return super(MTTextInput, self).on_resize(*largs)
def _get_keyboard(self):
if not self._keyboard:
self._keyboard = self.group['keyboard']
if self._keyboard is None:
self._keyboard = MTVKeyboard()
self.group['keyboard'] = self._keyboard
return self._keyboard
def _set_keyboard(self, value):
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard = value
keyboard = property(_get_keyboard, _set_keyboard)
def on_press(self, touch):
if self.is_active_input:
self.hide_keyboard()
else:
self.show_keyboard()
def _kbd_on_text_change(self, value):
self.label = value
self.dispatch_event('on_text_change', value)
def _kbd_on_key_up(self, key, repeat=False):
displayed_str, internal_str, internal_action, scale = key
if internal_action is None:
return
elif internal_action == 'enter':
self.hide_keyboard()
self.dispatch_event('on_text_validate')
elif internal_action == 'escape':
self.hide_keyboard()
def on_text_validate(self):
pass
def on_text_change(self, text):
pass
@property
def group(self):
'''Return information (keyboard/widget list) from the current
group of the widget'''
if not self._groupname in self._group:
self._group[self._groupname] = {}
return self._group[self._groupname]
def notify_error(self):
'''Call this function to make animation on background as an error
'''
error_color = self.style['bg-color-error']
if self._notify_animation is not None:
self._notify_animation.stop()
self.style['bg-color'] = self._notify_bg_color
self.style['bg-color-active'] = self._notify_bg_color_active
self._notify_animation = self.do(Animation(
style={'bg-color': error_color, 'bg-color-active': error_color},
f=lambda x: 1 - AnimationAlpha.ease_in_out_quart(x)))
def deactivate_group(self):
'''Deactivate all widgets in the group'''
for w in self.group['widgets']:
w.hide_keyboard()
def focus_next(self):
'''Focus the next textinput in the list'''
idx = (self.group['widgets'].index(self) + 1)
idx = idx % len(self.group['widgets'])
widget = self.group['widgets'][idx]
widget.show_keyboard()
def show_keyboard(self):
'''Show the associed keyboard of this widget.'''
if self.is_active_input:
return
self.deactivate_group()
self.is_active_input = True
# activate switch button if necessary
if self._switch:
self.add_widget(self._switch)
# activate the real keyboard
w = self.get_root_window()
w.push_handlers(on_key_down=self._window_on_key_down,
on_key_up=self._window_on_key_up)
# activate the virtual keyboard
if self.keyboard_type == 'virtual':
to_root = self.keyboard_to_root
w = self.get_root_window() if to_root else self.get_parent_window()
w.add_widget(self.keyboard)
if self.keyboard is not None:
self._keyboard.push_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
self._keyboard.text = self.label
def hide_keyboard(self):
'''Hide the associed keyboard of this widget.'''
if not self.is_active_input:
return
if self._switch:
self.remove_widget(self._switch)
parent = self.keyboard.parent
if parent is not None:
# If keyboard type is real, the keyboard is not attached to any
# parent widget.
parent.remove_widget(self.keyboard)
w = self.get_root_window()
w.remove_handlers(on_key_down=self._window_on_key_down,
on_key_up=self._window_on_key_up)
self.is_active_input = False
if self._keyboard is not None:
self._keyboard.remove_handlers(
on_text_change=self._kbd_on_text_change,
on_key_up=self._kbd_on_key_up
)
def on_update(self):
super(MTTextInput, self).on_update()
if self._switch:
self._switch.pos = self.x + self.width - 60, self.y + self.height
def draw(self):
if self.is_active_input and self.keyboard_type == 'virtual':
set_color(*self.style.get('bg-color'))
kx, ky = self.keyboard.to_window(*self.keyboard.center)
kx, ky = self.to_widget(kx, ky)
drawLine([self.center[0], self.center[1], kx, ky])
if self.password:
pw = '*' * len(self.label)
old_label = self.label
self.label = pw
super(MTTextInput, self).draw()
if self.password:
self.label = old_label
def draw_background(self):
if self.is_active_input:
set_color(*self.style.get('bg-color'))
drawCSSRectangle(pos=self.pos, size=self.size, style=self.style,
state='active')
else:
set_color(*self.style.get('bg-color'))
drawCSSRectangle(pos=self.pos, size=self.size, style=self.style)
def _window_on_key_down(self, key, scancode=None, unicode=None):
if key == 27: # escape
self.hide_keyboard()
return True
elif key == 9: # tab
self.focus_next()
return True
if not self.keyboard:
return
k = self.interesting_keys.get(key)
if k:
key = (None, None, k, 1)
self.keyboard.dispatch_event('on_key_down', key)
else:
if unicode is not None:
self.keyboard.text += unicode
else:
self.keyboard.text += chr(key)
def _window_on_key_up(self, key, scancode=None, unicode=None):
k = self.interesting_keys.get(key)
if k and self.keyboard:
key = (None, None, k, 1)
self.keyboard.dispatch_event('on_key_up', key)
def _get_value(self):
return self.label
def _set_value(self, value):
self.label = value
value = property(
lambda self: self._get_value(),
lambda self, x: self._set_value(x),
doc='Get/set the value of the label')
def _get_keyboard_type(self):
return self._keyboard_type
def _set_keyboard_type(self, t):
self.hide_keyboard()
self._keyboard_type = t
if self.is_active_input:
self.show_keyboard()
keyboard_type = property(
lambda self: self._get_keyboard_type(),
lambda self, x: self._set_keyboard_type(x),
doc='Get/set the keyboard type to use')
#
# Needed if the switch button must be replaced
#
def on_touch_down(self, touch):
if self._switch and self._switch.collide_point(*touch.pos):
self.hide_keyboard()
if self.keyboard_type == 'virtual':
self.keyboard_type = 'real'
else:
self.keyboard_type = 'virtual'
self._switch.label = self.keyboard_type
self.show_keyboard()
return True
return super(MTTextInput, self).on_touch_down(touch)
