Add disabled state to FastScroller. (447cdf2c) · Commits · e / os / android_frameworks_base

core/java/android/widget/AbsListView.java

+7 −9

Original line number	Diff line number	Diff line
		@@ -1207,15 +1207,13 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
		*/
		public void setFastScrollEnabled(boolean enabled) {
		mFastScrollEnabled = enabled;
		if (enabled) {
		if (mFastScroller == null) {

		if (enabled && mFastScroller == null) {
		mFastScroller = new FastScroller(getContext(), this);
		}
		} else {

		if (mFastScroller != null) {
		mFastScroller.stop();
		mFastScroller = null;
		}
		mFastScroller.setEnabled(enabled);
		}
		}

core/java/android/widget/FastScroller.java

+45 −13

Original line number	Diff line number	Diff line
		@@ -175,6 +175,9 @@ class FastScroller {
		/** Whether decorations should be laid out from right to left. */
		private boolean mLayoutFromRight;

		/** Whether the fast scroller is enabled. */
		private boolean mEnabled;

		/** Whether the scrollbar and decorations should always be shown. */
		private boolean mAlwaysShow;

		@@ -301,6 +304,39 @@ class FastScroller {
		mList.postDelayed(mDeferHide, FADE_TIMEOUT);
		}

		/**
		* Removes this FastScroller overlay from the host view.
		*/
		public void remove() {
		mOverlay.remove(mTrackImage);
		mOverlay.remove(mThumbImage);
		mOverlay.remove(mPreviewImage);
		mOverlay.remove(mPrimaryText);
		mOverlay.remove(mSecondaryText);
		}

		/**
		* @param enabled Whether the fast scroll thumb is enabled.
		*/
		public void setEnabled(boolean enabled) {
		mEnabled = enabled;

		if (enabled) {
		if (mAlwaysShow) {
		setState(STATE_VISIBLE);
		}
		} else {
		stop();
		}
		}

		/**
		* @return Whether the fast scroll thumb is enabled.
		*/
		public boolean isEnabled() {
		return mEnabled;
		}

		/**
		* @param alwaysShow Whether the fast scroll thumb should always be shown
		*/
		@@ -329,18 +365,6 @@ class FastScroller {
		setState(STATE_NONE);
		}

		/**
		* @return Whether the fast scroll thumb should be shown.
		*/
		public boolean shouldShow() {
		// Don't show if the list is as tall as or shorter than the thumbnail.
		if (mList.getHeight() <= mThumbImage.getHeight()) {
		return false;
		}

		return true;
		}

		public void setScrollbarPosition(int position) {
		if (position == View.SCROLLBAR_POSITION_DEFAULT) {
		position = mList.isLayoutRtl() ?
		@@ -696,7 +720,7 @@ class FastScroller {
		}

		public void onScroll(int firstVisibleItem, int visibleItemCount, int totalItemCount) {
		if (!mAlwaysShow && !isLongList(visibleItemCount, totalItemCount)) {
		if (!mEnabled \|\| !mAlwaysShow && !isLongList(visibleItemCount, totalItemCount)) {
		setState(STATE_NONE);
		return;
		}
		@@ -1106,6 +1130,10 @@ class FastScroller {
		}

		public boolean onInterceptTouchEvent(MotionEvent ev) {
		if (!mEnabled) {
		return false;
		}

		switch (ev.getActionMasked()) {
		case MotionEvent.ACTION_DOWN:
		if (isPointInside(ev.getX(), ev.getY())) {
		@@ -1134,6 +1162,10 @@ class FastScroller {
		}

		public boolean onTouchEvent(MotionEvent me) {
		if (!mEnabled) {
		return false;
		}

		switch (me.getActionMasked()) {
		case MotionEvent.ACTION_DOWN: {
		if (isPointInside(me.getX(), me.getY())) {