Hides text on ButtonDropTargets if any of them are ellipsized. (bfaa4a4e) · Commits · e / os / android_packages_apps_Trebuchet

src/com/android/launcher3/ButtonDropTarget.java

+29 −0

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@ import android.graphics.ColorMatrix;
		import android.graphics.ColorMatrixColorFilter;
		import android.graphics.Rect;
		import android.graphics.drawable.Drawable;
		import android.text.TextUtils;
		import android.util.AttributeSet;
		import android.view.View;
		import android.view.View.OnClickListener;
		@@ -69,6 +70,7 @@ public abstract class ButtonDropTarget extends TextView
		/** The paint applied to the drag view on hover */
		protected int mHoverColor = 0;

		protected CharSequence mText;
		protected ColorStateList mOriginalTextColor;
		protected Drawable mDrawable;

		@@ -96,6 +98,7 @@ public abstract class ButtonDropTarget extends TextView
		@Override
		protected void onFinishInflate() {
		super.onFinishInflate();
		mText = getText();
		mOriginalTextColor = getTextColors();
		}

		@@ -297,4 +300,30 @@ public abstract class ButtonDropTarget extends TextView
		public int getTextColor() {
		return getTextColors().getDefaultColor();
		}

		/**
		* Returns True if any update was made.
		*/
		public boolean updateText(boolean hide) {
		if ((hide && getText().toString().isEmpty()) \|\| (!hide && mText.equals(getText()))) {
		return false;
		}

		setText(hide ? "" : mText);
		return true;
		}

		public boolean isTextTruncated() {
		int availableWidth = getMeasuredWidth();
		if (mHideParentOnDisable) {
		ViewGroup parent = (ViewGroup) getParent();
		availableWidth = parent.getMeasuredWidth() - parent.getPaddingLeft()
		- parent.getPaddingRight();
		}
		availableWidth -= (getPaddingLeft() + getPaddingRight() + mDrawable.getIntrinsicWidth()
		+ getCompoundDrawablePadding());
		CharSequence displayedText = TextUtils.ellipsize(mText, getPaint(), availableWidth,
		TextUtils.TruncateAt.END);
		return !mText.equals(displayedText);
		}
		}

src/com/android/launcher3/DeleteDropTarget.java

+4 −2

Original line number	Diff line number	Diff line
		@@ -65,9 +65,11 @@ public class DeleteDropTarget extends ButtonDropTarget {
		* Set the drop target's text to either "Remove" or "Cancel" depending on the drag source.
		*/
		public void setTextBasedOnDragSource(DragSource dragSource) {
		if (!TextUtils.isEmpty(getText())) {
		setText(dragSource.supportsDeleteDropTarget() ? R.string.remove_drop_target_label
		if (!TextUtils.isEmpty(mText)) {
		mText = getResources().getString(dragSource.supportsDeleteDropTarget()
		? R.string.remove_drop_target_label
		: android.R.string.cancel);
		requestLayout();
		}
		}

src/com/android/launcher3/DropTargetBar.java

+52 −0

Original line number	Diff line number	Diff line
		@@ -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;