Automatically hide word candidate list

This change adds support for automatically hiding word candidate list
when inactive. This feature includes the following enhancements:

- Added new settings:
  * VirtualKeyboardSettings.wordCandidateList.autoHideDelay
  * VirtualKeyboardSettings.wordCandidateList.alwaysVisible
- Automatic hiding of word candidate list when inactive and when
  autoHideDelay elapsed.
- alwaysVisible setting restores the old functionality.
- Added new signal selectionListsChanged() to input method, allowing
  the input method to dynamically allocate or deallocate selection
  lists.
- HunspellInputMethod does not allocate selection list when
  dictionary cannot be loaded, or Qt::ImhNoPredictiveText is enabled.
  Also, it will no longer use pre-edit text in this case.
- OpenWnnInputMethod does not allocate selection list if not needed.

[ChangeLog] Automatically hide word candidate list when inactive.

Change-Id: Ifa95ae8a7c47a96719ffdc2929601ff2ef9c0d2e
Reviewed-by: Gordan Markus <gordan.markus@pelagicore.com>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/virtualkeyboard/hunspellinputmethod_p.h b/src/virtualkeyboard/hunspellinputmethod_p.h
index 1a56defa..a73273b2 100644
--- a/src/virtualkeyboard/hunspellinputmethod_p.h
+++ b/src/virtualkeyboard/hunspellinputmethod_p.h
@@ -43,6 +43,12 @@ public:
     HunspellInputMethodPrivate(HunspellInputMethod *q_ptr);
     ~HunspellInputMethodPrivate();
 
+    enum DictionaryState {
+        DictionaryNotLoaded,
+        DictionaryLoading,
+        DictionaryReady
+    };
+
     bool createHunspell(const QString &locale);
     void reset();
     bool updateSuggestions();
@@ -61,6 +67,7 @@ public:
     int wordCompletionPoint;
     bool ignoreUpdate;
     bool autoSpaceAllowed;
+    DictionaryState dictionaryState;
 };
 
 } // namespace QtVirtualKeyboard