Add language popup

This change adds language popup as an alternative method for
selecting the input language.

The language popup is enabled when the active style supports it.
This change adds the support for the default style.

The popup opens from the change language key with single tap
and can be dismissed by tapping anywhere else on the keyboard.

The old toggle method for changing the input language is still
available and supported (can be enabled easily from keyboard style).

Some basic tests are included in this change.

[ChangeLog] Added language selection popup for faster selection of
input language.

Change-Id: Ie3773f1d0cac78dee8237285e8596fe57c8bb5e4
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

2 files changed, 90 insertions, 1 deletions

diff --git a/tests/auto/inputpanel/data/inputpanel/inputpanel.qml b/tests/auto/inputpanel/data/inputpanel/inputpanel.qml
index 4d42d941..1fb37d74 100644
--- a/tests/auto/inputpanel/data/inputpanel/inputpanel.qml
+++ b/tests/auto/inputpanel/data/inputpanel/inputpanel.qml
@@ -258,8 +258,12 @@ InputPanel {
         return Utils.findChildByProperty(keyboardLayoutLoader, "effectiveAlternativeKeys", key, function(propertyValue, key) { return propertyValue.indexOf(key) !== -1 })
     }
 
+    function findObjectByName(objectName) {
+        return Utils.findChildByProperty(keyboard, "objectName", objectName, null)
+    }
+
     function virtualKeyPressOnCurrentLayout(key) {
-        var keyObj = findVirtualKey(key)
+        var keyObj = typeof key == "object" && key.hasOwnProperty("key") ? key : findVirtualKey(key)
         var alternativeKey = false
         if (!keyObj && typeof key == "string") {
             keyObj = findVirtualKeyAlternative(key)
diff --git a/tests/auto/inputpanel/data/tst_inputpanel.qml b/tests/auto/inputpanel/data/tst_inputpanel.qml
index ed4f37ef..61363882 100644
--- a/tests/auto/inputpanel/data/tst_inputpanel.qml
+++ b/tests/auto/inputpanel/data/tst_inputpanel.qml
@@ -1461,5 +1461,90 @@ Rectangle {
                 compare(anchorHandlePointsTo.y, anchorRect.y + anchorRect.height)
             }
         }
+
+        function test_languagePopupListToggle() {
+            prepareTest()
+            if (inputPanel.availableLocales.length < 2)
+                skip("Input language can not be changed")
+            var changeLanguageKey = inputPanel.findObjectByName("changeLanguageKey")
+            var languagePopupList = inputPanel.findObjectByName("languagePopupList")
+            inputPanel.virtualKeyClick(changeLanguageKey)
+            compare(languagePopupList.visible, true)
+            inputPanel.virtualKeyClick(changeLanguageKey)
+            compare(languagePopupList.visible, false)
+        }
+
+        function test_languagePopupListHideOnFocusChange() {
+            prepareTest()
+            if (inputPanel.availableLocales.length < 2)
+                skip("Input language can not be changed")
+            var changeLanguageKey = inputPanel.findObjectByName("changeLanguageKey")
+            var languagePopupList = inputPanel.findObjectByName("languagePopupList")
+            inputPanel.virtualKeyClick(changeLanguageKey)
+            compare(languagePopupList.visible, true)
+            container.forceActiveFocus()
+            textInput.forceActiveFocus()
+            compare(languagePopupList.visible, false)
+        }
+
+        function test_languagePopupListHideOnKeyboardHide() {
+            prepareTest()
+            if (inputPanel.availableLocales.length < 2)
+                skip("Input language can not be changed")
+            var changeLanguageKey = inputPanel.findObjectByName("changeLanguageKey")
+            var languagePopupList = inputPanel.findObjectByName("languagePopupList")
+            inputPanel.virtualKeyClick(changeLanguageKey)
+            compare(languagePopupList.visible, true)
+            Qt.inputMethod.hide()
+            Qt.inputMethod.show()
+            compare(languagePopupList.visible, false)
+        }
+
+        function test_languagePopupListActiveLocales_data() {
+            return [
+                { activeLocales: ["fi_FI"], initLocale: "fi_FI", languagePopupVisible: false },
+                { activeLocales: ["en_GB", "fi_FI", "ar_AR"], selectLocale: "ar_AR", languagePopupVisible: true },
+            ]
+        }
+
+        function test_languagePopupListActiveLocales(data) {
+            prepareTest(data)
+
+            for (var i = 0; i < data.activeLocales.length; ++i) {
+                if (!inputPanel.isLocaleSupported(data.activeLocales[i])) {
+                    expectFail("", "Input locale not available (%1)".arg(data.activeLocales[i]))
+                    break
+                }
+            }
+
+            var changeLanguageKey = inputPanel.findObjectByName("changeLanguageKey")
+            var languagePopupList = inputPanel.findObjectByName("languagePopupList")
+            inputPanel.virtualKeyClick(changeLanguageKey)
+
+            compare(languagePopupList.visible, data.languagePopupVisible)
+            if (!data.languagePopupVisible)
+                return
+
+            compare(data.activeLocales.length, languagePopupList.model.count)
+            for (i = 0; i < languagePopupList.model.count; ++i) {
+                verify(data.activeLocales.indexOf(languagePopupList.model.get(i).localeName) !== -1)
+            }
+
+            if (data.hasOwnProperty("selectLocale")) {
+                for (i = 0; i < languagePopupList.model.count; ++i) {
+                    if (languagePopupList.model.get(i).localeName === data.selectLocale) {
+                        inputPanel.keyboardLayoutLoaderItemSpy.clear()
+                        languagePopupList.model.selectItem(i)
+                        inputPanel.keyboardLayoutLoaderItemSpy.wait()
+                        break
+                    }
+                }
+                compare(inputPanel.locale, data.selectLocale, "Language popup select %1".arg(data.selectLocale))
+            } else {
+                inputPanel.virtualKeyClick(changeLanguageKey)
+            }
+
+            compare(languagePopupList.visible, false)
+        }
     }
 }