Fix clearable (#599)

* 🐛 fix #594

* 🐛 this fixes #593

* 💄 fix lint

* ⚗️ add wait for clickable

* :add percy reset

* 🔧 add percy reset

* rename job

* 🔧 try on_fail step

* 👌 add more check so less superfluous

* 🔍

.circleci/config.yml

@@ -12,6 +12,7 @@ jobs:
             environment:
                 PYTHON_VERSION: py27
                 PERCY_PARALLEL_TOTAL: '-1'
+          - image: percyio/agent
 
       steps:
           - checkout
@@ -53,6 +54,11 @@ jobs:
                     python --version
                     npm run test
 
+          - run:
+                name: Percy TearDown
+                command: percy --finalize -all
+                when: on_fail
+
   'python-3.6':
       <<: *test-template
       docker:
@@ -73,7 +79,7 @@ workflows:
   version: 2
   build:
     jobs:
-      - 'python-2.7'
+      - python-2.7
       - "percy-finalize":
           requires:
             - 'python-2.7'

src/components/DatePickerRange.react.js

@@ -46,7 +46,7 @@ export default class DatePickerRange extends Component {
     }
 
     onDatesChange({startDate: start_date, endDate: end_date}) {
-        const {setProps, updatemode} = this.props;
+        const {setProps, updatemode, clearable} = this.props;
 
         const oldMomentDates = convertToMoment(this.state, [
             'start_date',
@@ -71,6 +71,16 @@ export default class DatePickerRange extends Component {
                 });
             }
         }
+
+        if (
+            clearable &&
+            !start_date &&
+            !end_date &&
+            (oldMomentDates.start_date !== start_date ||
+                oldMomentDates.end_date !== end_date)
+        ) {
+            setProps({start_date: null, end_date: null});
+        }
     }
 
     isOutsideRange(date) {

tests/integration/calendar/test_calendar_props.py

@@ -0,0 +1,110 @@
+import itertools
+import pytest
+
+import dash_core_components as dcc
+import dash_html_components as html
+import dash
+from dash.dependencies import Input, Output
+import dash.testing.wait as wait
+
+DAY_SELECTOR = 'div[data-visible="true"] td.CalendarDay'
+
+
+@pytest.mark.DCC594
+def test_cdpr001_date_clearable_true_works(dash_duo):
+
+    app = dash.Dash(__name__)
+    app.layout = html.Div([dcc.DatePickerRange(id="dpr", clearable=True)])
+
+    dash_duo.start_server(app)
+
+    start_date = dash_duo.find_element('input[aria-label="Start Date"]')
+    end_date = dash_duo.find_element('input[aria-label="End Date"]')
+
+    start_date.click()
+
+    dash_duo.find_elements(DAY_SELECTOR)[0].click()
+    dash_duo.find_elements(DAY_SELECTOR)[-1].click()
+
+    close_btn = dash_duo.wait_for_element('button[aria-label="Clear Dates"]')
+
+    assert start_date.get_attribute("value") and end_date.get_attribute(
+        "value"
+    ), "both start date and end date should get values"
+
+    close_btn.click()
+    assert not start_date.get_attribute(
+        "value"
+    ) and not end_date.get_attribute(
+        "value"
+    ), "both start and end dates should be cleared"
+
+
+def test_cdpr002_updatemodes(dash_duo):
+    app = dash.Dash(__name__)
+
+    app.layout = html.Div(
+        [
+            dcc.DatePickerRange(
+                id="date-picker-range",
+                start_date_id="startDate",
+                end_date_id="endDate",
+                start_date_placeholder_text="Select a start date!",
+                end_date_placeholder_text="Select an end date!",
+                updatemode="bothdates",
+            ),
+            html.Div(id="date-picker-range-output"),
+        ]
+    )
+
+    @app.callback(
+        Output("date-picker-range-output", "children"),
+        [
+            Input("date-picker-range", "start_date"),
+            Input("date-picker-range", "end_date"),
+        ],
+    )
+    def update_output(start_date, end_date):
+        return "{} - {}".format(start_date, end_date)
+
+    dash_duo.start_server(app=app)
+
+    start_date = dash_duo.find_element("#startDate")
+    start_date.click()
+
+    end_date = dash_duo.find_element("#endDate")
+    end_date.click()
+
+    assert (
+        dash_duo.find_element("#date-picker-range-output").text
+        == "None - None"
+    ), "the output should not update when both clicked but no selection happen"
+
+    start_date.click()
+
+    dash_duo.find_elements(DAY_SELECTOR)[4].click()
+    assert (
+        dash_duo.find_element("#date-picker-range-output").text
+        == "None - None"
+    ), "the output should not update when only one is selected"
+
+    eday = dash_duo.find_elements(DAY_SELECTOR)[-4]
+    wait.until(lambda: eday.is_displayed() and eday.is_enabled(), timeout=2)
+    eday.click()
+
+    date_tokens = set(start_date.get_attribute("value").split("/"))
+    date_tokens.update(end_date.get_attribute("value").split("/"))
+
+    assert (
+        set(
+            itertools.chain(
+                *[
+                    _.split("-")
+                    for _ in dash_duo.find_element(
+                        "#date-picker-range-output"
+                    ).text.split(" - ")
+                ]
+            )
+        )
+        == date_tokens
+    ), "date should match the callback output"

tests/test_integration.py

@@ -1186,60 +1186,6 @@ def test_graphs_without_ids(self):
 
         self.assertNotEqual(graph_1.get_attribute('id'), graph_2.get_attribute('id'))
 
-    def test_datepickerrange_updatemodes(self):
-        app = dash.Dash(__name__)
-
-        app.layout = html.Div([
-            dcc.DatePickerRange(
-                id='date-picker-range',
-                start_date_id='startDate',
-                end_date_id='endDate',
-                start_date_placeholder_text='Select a start date!',
-                end_date_placeholder_text='Select an end date!',
-                updatemode='bothdates'
-            ),
-            html.Div(id='date-picker-range-output')
-        ])
-
-        @app.callback(
-            dash.dependencies.Output('date-picker-range-output', 'children'),
-            [dash.dependencies.Input('date-picker-range', 'start_date'),
-             dash.dependencies.Input('date-picker-range', 'end_date')])
-        def update_output(start_date, end_date):
-            return '{} - {}'.format(start_date, end_date)
-
-        self.startServer(app=app)
-
-        start_date = self.wait_for_element_by_css_selector('#startDate')
-        start_date.click()
-
-        end_date = self.wait_for_element_by_css_selector('#endDate')
-        end_date.click()
-
-        self.wait_for_text_to_equal('#date-picker-range-output', 'None - None')
-
-        # using mouse click with fixed day range, this can be improved
-        # once we start refactoring the test structure
-        start_date.click()
-
-        sday = self.driver.find_element_by_xpath("//td[text()='1' and @tabindex='0']")
-        sday.click()
-        self.wait_for_text_to_equal('#date-picker-range-output', 'None - None')
-
-        eday = self.driver.find_elements_by_xpath("//td[text()='28']")[1]
-        eday.click()
-
-        date_tokens = set(start_date.get_attribute('value').split('/'))
-        date_tokens.update(end_date.get_attribute('value').split('/'))
-
-        self.assertEqual(
-            set(itertools.chain(*[
-                _.split('-')
-                for _ in self.driver.find_element_by_css_selector(
-                    '#date-picker-range-output').text.split(' - ')])),
-            date_tokens,
-            "date should match the callback output")
-
     def test_interval(self):
         app = dash.Dash(__name__)
         app.layout = html.Div([