File: search_editor.py

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python-traitsui 8.0.0-2
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# (C) Copyright 2004-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!

# System library imports
import wx

# Local imports
from .editor import Editor


class SearchEditor(Editor):
    def init(self, parent):
        """Finishes initializing the editor by creating the underlying toolkit
        widget.
        """

        style = 0
        if self.factory.enter_set:
            style = wx.TE_PROCESS_ENTER
        self.control = wx.SearchCtrl(parent, -1, value=self.value, style=style)

        self.control.SetDescriptiveText(self.factory.text)
        self.control.ShowSearchButton(self.factory.search_button)
        self.control.ShowCancelButton(self.factory.cancel_button)

        if self.factory.auto_set:
            self.control.Bind(wx.EVT_TEXT, self.update_object)

        if self.factory.enter_set:
            self.control.Bind(wx.EVT_TEXT_ENTER, self.update_object)

        self.control.Bind(wx.EVT_SEARCHCTRL_SEARCH_BTN, self.update_object)
        self.control.Bind(wx.EVT_SEARCHCTRL_CANCEL_BTN, self.clear_text)

    def dispose(self):
        if self.control is not None:
            if self.factory.auto_set:
                self.control.Unbind(wx.EVT_TEXT, handler=self.update_object)

            if self.factory.enter_set:
                self.control.Unbind(
                    wx.EVT_TEXT_ENTER, handler=self.update_object
                )

            self.control.Unbind(
                wx.EVT_SEARCHCTRL_SEARCH_BTN, handler=self.update_object
            )
            self.control.Unbind(
                wx.EVT_SEARCHCTRL_CANCEL_BTN, handler=self.clear_text
            )

        super().dispose()

    def update_object(self, event):
        """Handles the user entering input data in the edit control."""

        if not self._no_update:
            self.value = self.control.GetValue()
            if self.factory.search_event_trait != "":
                setattr(self.object, self.factory.search_event_trait, True)

    def clear_text(self, event):
        """Handles the user pressing the cancel search button."""

        if not self._no_update:
            self.control.SetValue("")
            self.value = ""
            if self.factory.search_event_trait != "":
                setattr(self.object, self.factory.search_event_trait, True)

    def update_editor(self):
        """Updates the editor when the object trait changes externally to the
        editor.
        """

        if self.control.GetValue() != self.value:
            self._no_update = True
            self.control.SetValue(self.str_value)
            self._no_update = False