Fix clear input for number type

src/widgetastic/browser.py

@@ -856,22 +856,28 @@ def middle_of(self, *args, **kwargs) -> Location:
         location = self.location_of(*args, **kwargs)
         return Location(int(location.x + size.width / 2), int(location.y + size.height / 2))
 
-    def clear(self, locator: LocatorAlias, *args, **kwargs) -> None:
+    def clear(self, locator: LocatorAlias, *args, **kwargs) -> bool:
         """Clears a text input with given locator."""
         self.logger.debug("clear: %r", locator)
 
         el = self.element(locator, *args, **kwargs)
         self.plugin.before_keyboard_input(el, None)
 
         self.click(locator, *args, **kwargs)
+        # CTRL + A doesn't work on 'number' types, as
+        # browser does not treat the numeric value as selectable text
+        if el.get_attribute("type") == "number":
+            self.execute_script("arguments[0].value = '';", el)
+            el.send_keys(Keys.SPACE, Keys.BACK_SPACE)
+
         ActionChains(self.selenium).key_down(Keys.CONTROL).send_keys("a").key_up(
             Keys.CONTROL
         ).perform()
-        result = el.send_keys(Keys.DELETE)
+        el.send_keys(Keys.DELETE)
 
         self.plugin.after_keyboard_input(el, None)
 
-        return result
+        return el.get_attribute("value") == ""
 
     def is_selected(self, *args, **kwargs) -> bool:
         return self.element(*args, **kwargs).is_selected()

testing/html/testing_page.html

@@ -34,6 +34,7 @@ <h2 style="display: none;" id="invisible">This is invisible</h2>
   </select>
   <input type='text' id='input' />
   <input type='text' id='input_paste' />
+  <input type='number' id='input_number' />
   <input type='file' id='fileinput' />
   <input type='color' id='colourinput' />
 

testing/test_browser.py

@@ -181,6 +181,13 @@ def test_simple_input_send_keys_clear(browser):
     assert browser.get_attribute("value", "#input") == ""
 
 
+def test_clear_input_type_number(browser):
+    browser.send_keys("3", "#input_number")
+    assert browser.get_attribute("value", "#input_number") == "3"
+    browser.clear("#input_number")
+    assert browser.get_attribute("value", "#input") == ""
+
+
 def test_copy_paste(browser):
     t = "copy and paste text"
     browser.send_keys(t, "#input")