Enable long-press spacebar on 7 inch tablet

This change also eliminate useless attribute longPressSpaceKeyTimeout
of LatinKeyboardView.

Bug: 6449356
Change-Id: Ib4dace4b9510c0eb96bdddacf8e0dbaa14fcfbbf

java/res/values-sw600dp/config.xml

@@ -28,8 +28,6 @@
     <bool name="config_auto_correction_spacebar_led_enabled">false</bool>
     <!-- The language is never displayed if == 0, always displayed if < 0 -->
     <integer name="config_delay_before_fadeout_language_on_spacebar">1200</integer>
-    <!-- Long pressing space will invoke IME switcher if > 0, never invoke IME switcher if == 0 -->
-    <integer name="config_long_press_space_key_timeout">0</integer>
     <!-- This configuration is the index of the array {@link KeyboardSwitcher.KEYBOARD_THEMES}. -->
     <string name="config_default_keyboard_theme_index" translatable="false">5</string>
     <integer name="config_max_more_keys_column">5</integer>

java/res/values-sw768dp/config.xml

@@ -26,8 +26,6 @@
     <bool name="config_default_popup_preview">false</bool>
     <bool name="config_default_sound_enabled">true</bool>
     <bool name="config_auto_correction_spacebar_led_enabled">false</bool>
-    <!-- Long pressing space will invoke IME switcher if > 0, never invoke IME switcher if == 0 -->
-    <integer name="config_long_press_space_key_timeout">0</integer>
     <!-- This configuration is the index of the array {@link KeyboardSwitcher.KEYBOARD_THEMES}. -->
     <string name="config_default_keyboard_theme_index" translatable="false">5</string>
     <integer name="config_max_more_keys_column">5</integer>

java/res/values/attrs.xml

@@ -154,8 +154,6 @@
         <attr name="longPressKeyTimeout" format="integer" />
         <!-- Long press timeout of shift key in millisecond. -->
         <attr name="longPressShiftKeyTimeout" format="integer" />
-        <!-- Long press timeout of space key in millisecond. -->
-        <attr name="longPressSpaceKeyTimeout" format="integer" />
         <!-- Ignore special key timeout while typing in millisecond. -->
         <attr name="ignoreAltCodeKeyTimeout" format="integer" />
         <!-- More keys keyboard will shown at touched point. -->

java/res/values/config.xml

@@ -63,9 +63,6 @@
     <integer name="config_long_press_key_timeout">400</integer>
     <!-- Long pressing shift will invoke caps-lock if > 0, never invoke caps-lock if == 0 -->
     <integer name="config_long_press_shift_key_timeout">1200</integer>
-    <!-- Long pressing space will invoke IME switcher if > 0, never invoke IME switcher if == 0 -->
-    <integer name="config_long_press_space_key_timeout">
-            @integer/config_long_press_key_timeout</integer>
     <integer name="config_ignore_alt_code_key_timeout">700</integer>
     <!-- Showing more keys keyboard, just above the touched point if true, aligned to the key if
          false -->

java/res/values/styles.xml

@@ -75,7 +75,6 @@
         <item name="keyRepeatInterval">@integer/config_key_repeat_interval</item>
         <item name="longPressKeyTimeout">@integer/config_long_press_key_timeout</item>
         <item name="longPressShiftKeyTimeout">@integer/config_long_press_shift_key_timeout</item>
-        <item name="longPressSpaceKeyTimeout">@integer/config_long_press_space_key_timeout</item>
         <item name="ignoreAltCodeKeyTimeout">@integer/config_ignore_alt_code_key_timeout</item>
         <item name="showMoreKeysKeyboardAtTouchedPoint">@bool/config_show_more_keys_keyboard_at_touched_point</item>
         <item name="languageOnSpacebarFinalAlpha">@integer/config_language_on_spacebar_final_alpha</item>

java/res/xml-sw600dp/key_styles_common.xml

@@ -77,7 +77,7 @@
     <key-style
         latin:styleName="spaceKeyStyle"
         latin:code="!code/key_space"
-        latin:keyActionFlags="noKeyPreview" />
+        latin:keyActionFlags="noKeyPreview|enableLongPress" />
     <!-- U+200C: ZERO WIDTH NON-JOINER
          U+200D: ZERO WIDTH JOINER -->
     <key-style

java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java

@@ -110,7 +110,6 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
     private final boolean mConfigShowMoreKeysKeyboardAtTouchedPoint;
 
     private final PointerTrackerParams mPointerTrackerParams;
-    private final boolean mIsSpacebarTriggeringPopupByLongPress;
     private final SuddenJumpingTouchEventHandler mTouchScreenRegulator;
 
     protected KeyDetector mKeyDetector;
@@ -197,29 +196,27 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
         @Override
         public void startLongPressTimer(PointerTracker tracker) {
             cancelLongPressTimer();
-            if (tracker != null) {
+            if (tracker == null) {
-                final Key key = tracker.getKey();
+                return;
-                final int delay;
+            }
-                switch (key.mCode) {
+            final Key key = tracker.getKey();
-                case Keyboard.CODE_SHIFT:
+            final int delay;
-                    delay = mParams.mLongPressShiftKeyTimeout;
+            switch (key.mCode) {
-                    break;
+            case Keyboard.CODE_SHIFT:
-                case Keyboard.CODE_SPACE:
+                delay = mParams.mLongPressShiftKeyTimeout;
-                    delay = mParams.mLongPressSpaceKeyTimeout;
+                break;
-                    break;
+            default:
-                default:
+                if (KeyboardSwitcher.getInstance().isInMomentarySwitchState()) {
-                    if (KeyboardSwitcher.getInstance().isInMomentarySwitchState()) {
+                    // We use longer timeout for sliding finger input started from the symbols
-                        // We use longer timeout for sliding finger input started from the symbols
+                    // mode key.
-                        // mode key.
+                    delay = mParams.mLongPressKeyTimeout * 3;
-                        delay = mParams.mLongPressKeyTimeout * 3;
+                } else {
-                    } else {
+                    delay = mParams.mLongPressKeyTimeout;
-                        delay = mParams.mLongPressKeyTimeout;
-                    }
-                    break;
-                }
-                if (delay > 0) {
-                    sendMessageDelayed(obtainMessage(MSG_LONGPRESS_KEY, tracker), delay);
                 }
+                break;
+            }
+            if (delay > 0) {
+                sendMessageDelayed(obtainMessage(MSG_LONGPRESS_KEY, tracker), delay);
             }
         }
 
@@ -314,7 +311,6 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
         public final int mKeyRepeatInterval;
         public final int mLongPressKeyTimeout;
         public final int mLongPressShiftKeyTimeout;
-        public final int mLongPressSpaceKeyTimeout;
         public final int mIgnoreAltCodeKeyTimeout;
 
         public KeyTimerParams(TypedArray latinKeyboardViewAttr) {
@@ -326,8 +322,6 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
                     R.styleable.LatinKeyboardView_longPressKeyTimeout, 0);
             mLongPressShiftKeyTimeout = latinKeyboardViewAttr.getInt(
                     R.styleable.LatinKeyboardView_longPressShiftKeyTimeout, 0);
-            mLongPressSpaceKeyTimeout = latinKeyboardViewAttr.getInt(
-                    R.styleable.LatinKeyboardView_longPressSpaceKeyTimeout, 0);
             mIgnoreAltCodeKeyTimeout = latinKeyboardViewAttr.getInt(
                     R.styleable.LatinKeyboardView_ignoreAltCodeKeyTimeout, 0);
         }
@@ -369,7 +363,6 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
 
         final KeyTimerParams keyTimerParams = new KeyTimerParams(a);
         mPointerTrackerParams = new PointerTrackerParams(a);
-        mIsSpacebarTriggeringPopupByLongPress = (keyTimerParams.mLongPressSpaceKeyTimeout > 0);
 
         final float keyHysteresisDistance = a.getDimension(
                 R.styleable.LatinKeyboardView_keyHysteresisDistance, 0);
@@ -881,9 +874,8 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
             drawSpacebar(key, canvas, paint);
 
             // Whether space key needs to show the "..." popup hint for special purposes
-            if (mIsSpacebarTriggeringPopupByLongPress
+            if (key.isLongPressEnabled() && ImfUtils.hasMultipleEnabledIMEsOrSubtypes(
-                    && ImfUtils.hasMultipleEnabledIMEsOrSubtypes(
+                    getContext(), true /* include aux subtypes */)) {
-                            getContext(), true /* include aux subtypes */)) {
                 drawKeyPopupHint(key, canvas, paint, params);
             }
         } else if (key.mCode == Keyboard.CODE_LANGUAGE_SWITCH) {