diff options
Diffstat (limited to 'src/com/android/launcher3/DropTargetBar.java')
-rw-r--r-- | src/com/android/launcher3/DropTargetBar.java | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/com/android/launcher3/DropTargetBar.java b/src/com/android/launcher3/DropTargetBar.java index 0840b7015..29a1349d5 100644 --- a/src/com/android/launcher3/DropTargetBar.java +++ b/src/com/android/launcher3/DropTargetBar.java @@ -78,6 +78,58 @@ public class DropTargetBar extends LinearLayout implements DragController.DragLi setupButtonDropTarget(this, dragController); } + @Override + protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { + super.onMeasure(widthMeasureSpec, heightMeasureSpec); + + boolean hideText = hideTextHelper(false /* shouldUpdateText */, false /* no-op */); + if (hideTextHelper(true /* shouldUpdateText */, hideText)) { + // Text has changed, so we need to re-measure. + super.onMeasure(widthMeasureSpec, heightMeasureSpec); + } + } + + /** + * Helper method that iterates through the children and returns whether any of the visible + * {@link ButtonDropTarget} has truncated text. + * + * @param shouldUpdateText If True, updates the text of all children. + * @param hideText If True and {@param shouldUpdateText} is True, clears the text of all + * children; otherwise it sets the original text value. + * + * + * @return If shouldUpdateText is True, returns whether any of the children updated their text. + * Else, returns whether any of the children have truncated their text. + */ + private boolean hideTextHelper(boolean shouldUpdateText, boolean hideText) { + boolean result = false; + View visibleView; + ButtonDropTarget dropTarget; + for (int i = getChildCount() - 1; i >= 0; --i) { + if (getChildAt(i) instanceof ButtonDropTarget) { + visibleView = dropTarget = (ButtonDropTarget) getChildAt(i); + } else if (getChildAt(i) instanceof ViewGroup) { + // The Drop Target is wrapped in a FrameLayout. + visibleView = getChildAt(i); + dropTarget = (ButtonDropTarget) ((ViewGroup) visibleView).getChildAt(0); + } else { + // Ignore other views. + continue; + } + + if (visibleView.getVisibility() == View.VISIBLE) { + if (shouldUpdateText) { + result |= dropTarget.updateText(hideText); + } else if (dropTarget.isTextTruncated()) { + result = true; + break; + } + } + } + + return result; + } + private void setupButtonDropTarget(View view, DragController dragController) { if (view instanceof ButtonDropTarget) { ButtonDropTarget bdt = (ButtonDropTarget) view; |