Merge "Fix 5335993, calculate correct size of lockscreen buttons"

2 files changed, 47 insertions, 3 deletions

diff --git a/core/java/android/inputmethodservice/Keyboard.java b/core/java/android/inputmethodservice/Keyboard.java
index 10386f8..4fe54c0 100644
--- a/core/java/android/inputmethodservice/Keyboard.java
+++ b/core/java/android/inputmethodservice/Keyboard.java
@@ -144,6 +144,8 @@ public class Keyboard {
     /** Number of key widths from current touch point to search for nearest keys. */
     private static float SEARCH_DISTANCE = 1.8f;
 
+    private ArrayList<Row> rows = new ArrayList<Row>();
+
     /**
      * Container for keys in the keyboard. All keys in a row are at the same Y-coordinate. 
      * Some of the key size defaults can be overridden per row from what the {@link Keyboard}
@@ -164,6 +166,9 @@ public class Keyboard {
         public int defaultHorizontalGap;
         /** Vertical gap following this row. */
         public int verticalGap;
+
+        ArrayList<Key> mKeys = new ArrayList<Key>();
+
         /**
          * Edge flags for this row of keys. Possible values that can be assigned are
          * {@link Keyboard#EDGE_TOP EDGE_TOP} and {@link Keyboard#EDGE_BOTTOM EDGE_BOTTOM}  
@@ -256,7 +261,7 @@ public class Keyboard {
         public CharSequence text;
         /** Popup characters */
         public CharSequence popupCharacters;
-        
+
         /** 
          * Flags that specify the anchoring to edges of the keyboard for detecting touch events
          * that are just out of the boundary of the key. This is a bit mask of 
@@ -596,11 +601,44 @@ public class Keyboard {
             column++;
             x += key.width + key.gap;
             mKeys.add(key);
+            row.mKeys.add(key);
             if (x > mTotalWidth) {
                 mTotalWidth = x;
             }
         }
-        mTotalHeight = y + mDefaultHeight; 
+        mTotalHeight = y + mDefaultHeight;
+        rows.add(row);
+    }
+
+    final void resize(int newWidth, int newHeight) {
+        int numRows = rows.size();
+        for (int rowIndex = 0; rowIndex < numRows; ++rowIndex) {
+            Row row = rows.get(rowIndex);
+            int numKeys = row.mKeys.size();
+            int totalGap = 0;
+            int totalWidth = 0;
+            for (int keyIndex = 0; keyIndex < numKeys; ++keyIndex) {
+                Key key = row.mKeys.get(keyIndex);
+                if (keyIndex > 0) {
+                    totalGap += key.gap;
+                }
+                totalWidth += key.width;
+            }
+            if (totalGap + totalWidth > newWidth) {
+                int x = 0;
+                float scaleFactor = (float)(newWidth - totalGap) / totalWidth;
+                for (int keyIndex = 0; keyIndex < numKeys; ++keyIndex) {
+                    Key key = row.mKeys.get(keyIndex);
+                    key.width *= scaleFactor;
+                    key.x = x;
+                    x += key.width + key.gap;
+                }
+            }
+        }
+        mTotalWidth = newWidth;
+        // TODO: This does not adjust the vertical placement according to the new size.
+        // The main problem in the previous code was horizontal placement/size, but we should
+        // also recalculate the vertical sizes/positions when we get this resize call.
     }
     
     public List<Key> getKeys() {
@@ -749,7 +787,7 @@ public class Keyboard {
         Row currentRow = null;
         Resources res = context.getResources();
         boolean skipRow = false;
-        
+
         try {
             int event;
             while ((event = parser.next()) != XmlResourceParser.END_DOCUMENT) {
@@ -759,6 +797,7 @@ public class Keyboard {
                         inRow = true;
                         x = 0;
                         currentRow = createRowFromXml(res, parser);
+                        rows.add(currentRow);
                         skipRow = currentRow.mode != 0 && currentRow.mode != mKeyboardMode;
                         if (skipRow) {
                             skipToEndOfRow(parser);
@@ -781,6 +820,7 @@ public class Keyboard {
                         } else if (key.codes[0] == KEYCODE_ALT) {
                             mModifierKeys.add(key);
                         }
+                        currentRow.mKeys.add(key);
                     } else if (TAG_KEYBOARD.equals(tag)) {
                         parseKeyboardAttributes(res, parser);
                     }
diff --git a/core/java/android/inputmethodservice/KeyboardView.java b/core/java/android/inputmethodservice/KeyboardView.java
index 05444f6..1119c1e 100644
--- a/core/java/android/inputmethodservice/KeyboardView.java
+++ b/core/java/android/inputmethodservice/KeyboardView.java
@@ -376,6 +376,7 @@ public class KeyboardView extends View implements View.OnClickListener {
         initGestureDetector();
     }
 
+
     private void initGestureDetector() {
         mGestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
             @Override
@@ -615,6 +616,9 @@ public class KeyboardView extends View implements View.OnClickListener {
     @Override
     public void onSizeChanged(int w, int h, int oldw, int oldh) {
         super.onSizeChanged(w, h, oldw, oldh);
+        if (mKeyboard != null) {
+            mKeyboard.resize(w, h);
+        }
         // Release the buffer, if any and it will be reallocated on the next draw
         mBuffer = null;
     }