How to retrieve text from a QLineEdit in a tabifyDockWidget

Question

I've write a plugin that calls a tool when a certain push button in my tabifyDockWidget is clicked. When the comboBox button is clicked it works perfectly carring the comboBox.currentText() to the tool, but when the lineEdit button is clicked the tool is called but doesnt get the lineEdit.text().

imports...
    def run(self):
        if not self.pluginIsActive:
            self.pluginIsActive = True
            if self.dockwidget == None:
                self.dockwidget = revEnvDockWidget()
            self.dockwidget.closingPlugin.connect(self.onClosePlugin)
            self.iface.addDockWidget(Qt.RightDockWidgetArea, self.dockwidget)
            self.dockwidget.show()

            #  sets the text that must be passed to tool
            #  QComboBox
            acquisitionTxt1 = self.dockwidget.acquisitionTab_comboBox.currentText()
            editionTxt1 = self.dockwidget.editionTab_comboBox.currentText()
            #  QLineEdit
            acquisitionTxt2 = self.dockwidget.acquisitionTab_lineEdit.text()
            editionTxt2 = self.dockwidget.editionTab_lineEdit.text()

            #  sets tool, it's the same tool for each different text
            a_ComboBoxClicked = HookCreator(self.iface.mapCanvas(), acquisitionTxt1)
            a_lineEditClicked = HookCreator(self.iface.mapCanvas(), acquisitionTxt2)
            e_ComboBoxClicked = HookCreator(self.iface.mapCanvas(), editionTxt1)
            e_lineEditClicked = HookCreator(self.iface.mapCanvas(), editionTxt2)

            #  calls the tool when certain button is clicked
            self.dockwidget.acquisitionTab_pushButton1.clicked.connect(
                lambda: self.iface.mapCanvas().setMapTool(a_ComboBoxClicked))

            self.dockwidget.acquisitionTab_pushButton2.clicked.connect(
                lambda: self.iface.mapCanvas().setMapTool(a_lineEditClicked))

            self.dockwidget.editionTab_pushButton1.clicked.connect(
                lambda: self.iface.mapCanvas().setMapTool(e_ComboBoxClicked))

            self.dockwidget.editionTab_pushButton2.clicked.connect(
                lambda: self.iface.mapCanvas().setMapTool(e_lineEditClicked))

from qgis import core
from qgis.core import QgsProject, QgsFeature, QgsGeometry, QgsPointXY
from qgis.gui import QgsMapTool
from qgis.PyQt.QtCore import Qt


class HookCreator(QgsMapTool):
    def __init__(self, canvas, txt):
        self.canvas = canvas
        QgsMapTool.__init__(self, self.canvas)
        self.txt = txt
        self.x = float
        self.y = float

    def canvasPressEvent(self, event):
        point = self.toMapCoordinates(self.canvas.mouseLastXY())
        self.x = point[0]
        self.y = point[1]

    def canvasReleaseEvent(self, event):
        features = []
        layer = QgsProject.instance().mapLayersByName('aux_revisao_p')[0]
        pr = layer.dataProvider()
        feature = core.QgsFeature(layer.fields())
        geom = QgsGeometry().fromPointXY(QgsPointXY(self.x, self.y))
        feature.setGeometry(geom)
        features.append(feature)
        for feat in features:
            feat[1] = self.txt
            feat[3] = 2
            feat[4] = 999
            feat[5] = 999
            if event.button() == Qt.RightButton:
                self.canvas.unsetMapTool(self)
            else:
                pr.addFeature(feat)
                layer.commitChanges()
                layer.triggerRepaint()

I've been searching about and find this question Activate a panel in tabbed panels that mentioned a findChild/Children method but I couldn't apply it. Am I missing somethig?