New demo keypad, New Window method - FindElementWithFocus

Demo_Touch_Keyboard2.py

@@ -0,0 +1,91 @@
+import PySimpleGUI as sg
+
+
+class keyboard():
+    def __init__(self, font=('Arial', 16)):
+        self.font = font
+        numberRow = '1234567890'
+        topRow = 'QWERTYUIOP'
+        midRow = 'ASDFGHJKL'
+        bottomRow = 'ZXCVBNM'
+        keyboard_layout = [[sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in numberRow] + [
+            sg.ReadButton('⌫', key='back', pad=(0, 0), size=(4, 2), font=self.font),
+            sg.ReadButton('Esc', key='close', pad=(0, 0), size=(4, 2), font=self.font)],
+                           [sg.T(' ' * 4)] + [sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in
+                                              topRow],
+                           [sg.T(' ' * 11)] + [sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in
+                                               midRow],
+                           [sg.T(' ' * 18)] + [sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in
+                                               bottomRow]]
+
+        self.window = sg.Window('keyboard', grab_anywhere=True, keep_on_top=True, no_titlebar=True).Layout(
+            keyboard_layout).Finalize()
+        self.hide()
+
+    def _keyboardhandler(self):
+        if self.event is not None:
+            if self.event == 'close':
+                self.hide()
+            elif len(self.event) == 1:
+                self.focus.Update(self.focus.Get() + self.event)
+            elif self.event == 'back':
+                Text = self.focus.Get()
+                if len(Text) > 0:
+                    Text = Text[:-1]
+                    self.focus.Update(Text)
+
+    def hide(self):
+        self.visible = False
+        self.window.Disappear()
+
+    def show(self):
+        self.visible = True
+        self.window.Reappear()
+
+    def togglevis(self):
+        if self.visible:
+            self.hide()
+        else:
+            self.show()
+
+    def update(self, focus):
+        self.event, _ = self.window.ReadNonBlocking()
+        if focus is not None:
+            self.focus = focus
+        self._keyboardhandler()
+
+    def close(self):
+        self.window.CloseNonBlocking()
+
+
+class GUI():
+    def __init__(self):
+        layout = [[sg.Text('Enter Text')],
+                  [sg.Input(size=(17, 1), key='input1', )],
+                  [sg.InputText(size=(17, 1), key='input2')],
+                  [sg.ReadButton('on-screen keyboard', key='keyboard')],
+                  [sg.ReadButton('close', key='close')]]
+
+        self.mainWindow = sg.Window('On-screen test', grab_anywhere=False, no_titlebar=True).Layout(layout)
+        self.keyboard = keyboard()
+        self.focus = None
+
+    def run(self):
+        while True:
+            cur_focus = self.mainWindow.FindElementWithFocus()
+            if cur_focus is not None:
+                self.focus = cur_focus
+            event, values = self.mainWindow.ReadNonBlocking()
+            if self.focus is not None:
+                self.keyboard.update(self.focus)
+            if event == 'keyboard':
+                self.keyboard.togglevis()
+            elif event == 'close':
+                break
+        self.keyboard.close()
+        self.mainWindow.CloseNonBlocking()
+
+
+if __name__ == '__main__':
+    app = GUI()
+    app.run()

PySimpleGUI.py

@@ -2683,15 +2683,17 @@ class Window:
         element = _FindElementFromKeyInSubForm(self, key)
         if element is None:
             print('*** WARNING = FindElement did not find the key. Please check your key\'s spelling ***')
-            if element is None:
+            PopupError('Keyword error in FindElement Call',
-                print('*** WARNING = FindElement did not find the key. Please check your key\'s spelling ***')
+                       'Bad key = {}'.format(key),
-                PopupError('Keyword error in FindElement Call',
+                       'Your bad line of code may resemble this:',
-                           'Bad key = {}'.format(key),
+                       'window.FindElement("{}")'.format(key))
-                           'Your bad line of code may resemble this:',
-                           'window.FindElement("{}")'.format(key))
             return ErrorElement(key=key)
         return element
 
+    def FindElementWithFocus(self):
+        element = _FindElementWithFocusInSubForm(self)
+        return element
+
     def SaveToDisk(self, filename):
         try:
             results = BuildResults(self, False, self)
@@ -3228,6 +3230,29 @@ def _FindElementFromKeyInSubForm(form, key):
                 return element
 
 
+def _FindElementWithFocusInSubForm(form):
+    for row_num, row in enumerate(form.Rows):
+        for col_num, element in enumerate(row):
+            if element.Type == ELEM_TYPE_COLUMN:
+                matching_elem = _FindElementWithFocusInSubForm(element)
+                if matching_elem is not None:
+                    return matching_elem
+            if element.Type == ELEM_TYPE_FRAME:
+                matching_elem = _FindElementWithFocusInSubForm(element)
+                if matching_elem is not None:
+                    return matching_elem
+            if element.Type == ELEM_TYPE_TAB_GROUP:
+                matching_elem = _FindElementWithFocusInSubForm(element)
+                if matching_elem is not None:
+                    return matching_elem
+            if element.Type == ELEM_TYPE_TAB:
+                matching_elem = _FindElementWithFocusInSubForm(element)
+                if matching_elem is not None:
+                    return matching_elem
+            if element.Type == ELEM_TYPE_INPUT_TEXT:
+                if element.TKEntry is not None:
+                    if element.TKEntry is element.TKEntry.focus_get():
+                        return element
 
 if sys.version_info[0] >= 3:
     def AddMenuItem(top_menu, sub_menu_info, element, is_sub_menu=False, skip=False):