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Interface Management (1/2)
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RFNexus
parent
03d1b22b8f
commit
c280e36a84
6 changed files with 3280 additions and 13 deletions
283
nomadnet/vendor/additional_urwid_widgets/FormWidgets.py
vendored
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283
nomadnet/vendor/additional_urwid_widgets/FormWidgets.py
vendored
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import urwid
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class DialogLineBox(urwid.LineBox):
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def __init__(self, body, parent=None, title="?"):
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super().__init__(body, title=title)
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self.parent = parent
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def keypress(self, size, key):
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if key == "esc":
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if self.parent and hasattr(self.parent, "dismiss_dialog"):
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self.parent.dismiss_dialog()
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return None
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return super().keypress(size, key)
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class Placeholder(urwid.Edit):
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def __init__(self, caption="", edit_text="", placeholder="", **kwargs):
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super().__init__(caption, edit_text, **kwargs)
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self.placeholder = placeholder
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def render(self, size, focus=False):
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if not self.edit_text and not focus:
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placeholder_widget = urwid.Text(("placeholder", self.placeholder))
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return placeholder_widget.render(size, focus)
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else:
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return super().render(size, focus)
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class Dropdown(urwid.WidgetWrap):
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signals = ['change'] # emit for urwid.connect_signal fn
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def __init__(self, label, options, default=None):
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self.label = label
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self.options = options
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self.selected = default if default is not None else options[0]
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self.main_text = f"{self.selected}"
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self.main_button = urwid.SelectableIcon(self.main_text, 0)
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self.main_button = urwid.AttrMap(self.main_button, "button_normal", "button_focus")
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self.option_widgets = []
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for opt in options:
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icon = urwid.SelectableIcon(opt, 0)
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icon = urwid.AttrMap(icon, "list_normal", "list_focus")
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self.option_widgets.append(icon)
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self.options_walker = urwid.SimpleFocusListWalker(self.option_widgets)
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self.options_listbox = urwid.ListBox(self.options_walker)
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self.dropdown_box = None # will be created on open_dropdown
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self.pile = urwid.Pile([self.main_button])
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self.dropdown_visible = False
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super().__init__(self.pile)
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def open_dropdown(self):
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if not self.dropdown_visible:
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height = len(self.options)
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self.dropdown_box = urwid.BoxAdapter(self.options_listbox, height)
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self.pile.contents.append((self.dropdown_box, self.pile.options()))
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self.dropdown_visible = True
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self.pile.focus_position = 1
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self.options_walker.set_focus(0)
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def close_dropdown(self):
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if self.dropdown_visible:
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self.pile.contents.pop() # remove the dropdown_box
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self.dropdown_visible = False
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self.pile.focus_position = 0
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self.dropdown_box = None
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def keypress(self, size, key):
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if not self.dropdown_visible:
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if key == "enter":
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self.open_dropdown()
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return None
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return self.main_button.keypress(size, key)
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else:
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if key == "enter":
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focus_result = self.options_walker.get_focus()
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if focus_result is not None:
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focus_widget = focus_result[0]
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new_val = focus_widget.base_widget.text
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old_val = self.selected
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self.selected = new_val
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self.main_button.base_widget.set_text(f"{self.selected}")
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if old_val != new_val:
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self._emit('change', new_val)
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self.close_dropdown()
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return None
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return self.dropdown_box.keypress(size, key)
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def get_value(self):
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return self.selected
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class ValidationError(urwid.Text):
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def __init__(self, message=""):
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super().__init__(("error", message))
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class FormField:
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def __init__(self, config_key, transform=None):
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self.config_key = config_key
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self.transform = transform or (lambda x: x)
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class FormEdit(Placeholder, FormField):
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def __init__(self, config_key, caption="", edit_text="", placeholder="", validation_types=None, transform=None, **kwargs):
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Placeholder.__init__(self, caption, edit_text, placeholder, **kwargs)
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FormField.__init__(self, config_key, transform)
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self.validation_types = validation_types or []
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self.error_widget = urwid.Text("")
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self.error = None
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def get_value(self):
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return self.transform(self.edit_text.strip())
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def validate(self):
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value = self.edit_text.strip()
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self.error = None
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for validation in self.validation_types:
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if validation == "required":
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if not value:
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self.error = "This field is required"
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break
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elif validation == "number":
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if value and not value.replace('-', '').replace('.', '').isdigit():
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self.error = "This field must be a number"
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break
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elif validation == "float":
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try:
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if value:
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float(value)
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except ValueError:
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self.error = "This field must be decimal number"
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break
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self.error_widget.set_text(("error", self.error or ""))
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return self.error is None
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class FormCheckbox(urwid.CheckBox, FormField):
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def __init__(self, config_key, label="", state=False, validation_types=None, transform=None, **kwargs):
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urwid.CheckBox.__init__(self, label, state, **kwargs)
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FormField.__init__(self, config_key, transform)
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self.validation_types = validation_types or []
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self.error_widget = urwid.Text("")
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self.error = None
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def get_value(self):
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return self.transform(self.get_state())
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def validate(self):
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value = self.get_state()
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self.error = None
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for validation in self.validation_types:
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if validation == "required":
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if not value:
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self.error = "This field is required"
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break
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self.error_widget.set_text(("error", self.error or ""))
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return self.error is None
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class FormDropdown(Dropdown, FormField):
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signals = ['change']
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def __init__(self, config_key, label, options, default=None, validation_types=None, transform=None):
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self.options = [str(opt) for opt in options]
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if default is not None:
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default_str = str(default)
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if default_str in self.options:
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default = default_str
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elif transform:
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try:
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default_transformed = transform(default_str)
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for opt in self.options:
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if transform(opt) == default_transformed:
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default = opt
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break
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except:
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default = self.options[0]
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else:
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default = self.options[0]
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else:
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default = self.options[0]
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Dropdown.__init__(self, label, self.options, default)
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FormField.__init__(self, config_key, transform)
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self.validation_types = validation_types or []
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self.error_widget = urwid.Text("")
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self.error = None
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if hasattr(self, 'main_button'):
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self.main_button.base_widget.set_text(str(default))
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def get_value(self):
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return self.transform(self.selected)
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def validate(self):
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value = self.get_value()
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self.error = None
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for validation in self.validation_types:
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if validation == "required":
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if not value:
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self.error = "This field is required"
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break
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self.error_widget.set_text(("error", self.error or ""))
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return self.error is None
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def open_dropdown(self):
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if not self.dropdown_visible:
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super().open_dropdown()
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try:
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current_index = self.options.index(self.selected)
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self.options_walker.set_focus(current_index)
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except ValueError:
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pass
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class FormMultiList(urwid.Pile, FormField):
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def __init__(self, config_key, placeholder="", validation_types=None, transform=None, **kwargs):
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self.entries = []
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self.error_widget = urwid.Text("")
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self.error = None
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self.placeholder = placeholder
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self.validation_types = validation_types or []
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first_entry = self.create_entry_row()
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self.entries.append(first_entry)
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self.add_button = urwid.Button("+ Add Another", on_press=self.add_entry)
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add_button_padded = urwid.Padding(self.add_button, left=2, right=2)
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pile_widgets = [first_entry, add_button_padded]
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urwid.Pile.__init__(self, pile_widgets)
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FormField.__init__(self, config_key, transform)
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def create_entry_row(self):
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edit = urwid.Edit("", "")
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entry_row = urwid.Columns([
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('weight', 1, edit),
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(3, urwid.Button("×", on_press=lambda button: self.remove_entry(button, entry_row))),
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])
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return entry_row
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def remove_entry(self, button, entry_row):
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if len(self.entries) > 1:
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self.entries.remove(entry_row)
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self.contents = [(w, self.options()) for w in self.get_pile_widgets()]
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def add_entry(self, button):
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new_entry = self.create_entry_row()
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self.entries.append(new_entry)
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self.contents = [(w, self.options()) for w in self.get_pile_widgets()]
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def get_pile_widgets(self):
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return self.entries + [urwid.Padding(self.add_button, left=2, right=2)]
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def get_value(self):
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values = []
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for entry in self.entries:
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edit_widget = entry.contents[0][0]
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value = edit_widget.edit_text.strip()
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if value:
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values.append(value)
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return self.transform(values)
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def validate(self):
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values = self.get_value()
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self.error = None
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for validation in self.validation_types:
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if validation == "required" and not values:
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self.error = "At least one entry is required"
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break
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self.error_widget.set_text(("error", self.error or ""))
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return self.error is None
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