public T repair(final T line) {
final T standard = get(line.getID(), false);
if (standard != null) {
final boolean badCountType = line.getCountType() != standard.getCountType();
final boolean badCount =
line.isFixedCount() && !badCountType && line.getCount() != standard.getCount();
final boolean badType = line.getType() != standard.getType();
final boolean badDesc = !line.getDescription().equals(standard.getDescription());
final boolean needsRepair =
badCountType || badCount || badType || (REPAIR_BAD_DESCRIPTIONS && badDesc);
if (needsRepair) {
if (GeneralUtils.DEBUG_MODE_ENABLED) {
System.err.println(
"Repairing standard header line for field "
+ line.getID()
+ " because"
+ (badCountType
? " -- count types disagree; header has "
+ line.getCountType()
+ " but standard is "
+ standard.getCountType()
: "")
+ (badType
? " -- type disagree; header has "
+ line.getType()
+ " but standard is "
+ standard.getType()
: "")
+ (badCount
? " -- counts disagree; header has "
+ line.getCount()
+ " but standard is "
+ standard.getCount()
: "")
+ (badDesc
? " -- descriptions disagree; header has '"
+ line.getDescription()
+ "' but standard is '"
+ standard.getDescription()
+ "'"
: ""));
}
return standard;
} else {
return line;
}
} else {
return line;
}
}
/** Remember enough information to restore the screen state when the data has changed. */
void rememberSyncState() {
if (getChildCount() > 0) {
mNeedSync = true;
mSyncHeight = mLayoutHeight;
if (mSelectedPosition >= 0) {
// Sync the selection state
View v = getChildAt(mSelectedPosition - mFirstPosition);
mSyncRowId = mNextSelectedRowId;
mSyncPosition = mNextSelectedPosition;
if (v != null) {
mSpecificTop = v.getTop();
}
mSyncMode = SYNC_SELECTED_POSITION;
} else {
// Sync the based on the offset of the first view
View v = getChildAt(0);
T adapter = getAdapter();
if (mFirstPosition >= 0 && mFirstPosition < adapter.getCount()) {
mSyncRowId = adapter.getItemId(mFirstPosition);
} else {
mSyncRowId = NO_ID;
}
mSyncPosition = mFirstPosition;
if (v != null) {
mSpecificTop = v.getTop();
}
mSyncMode = SYNC_FIRST_POSITION;
}
}
}
private boolean isScrollableForAccessibility() {
T adapter = getAdapter();
if (adapter != null) {
final int itemCount = adapter.getCount();
return itemCount > 0
&& (getFirstVisiblePosition() > 0 || getLastVisiblePosition() < itemCount - 1);
}
return false;
}
/**
* @return The data corresponding to the currently selected item, or null if there is nothing
* selected.
*/
public Object getSelectedItem() {
T adapter = getAdapter();
int selection = getSelectedItemPosition();
if (adapter != null && adapter.getCount() > 0 && selection >= 0) {
return adapter.getItem(selection);
} else {
return null;
}
}
@Override
public void setFocusable(boolean focusable) {
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.getCount() == 0;
mDesiredFocusableState = focusable;
if (!focusable) {
mDesiredFocusableInTouchModeState = false;
}
super.setFocusable(focusable && (!empty || isInFilterMode()));
}
void checkFocus() {
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.getCount() == 0;
final boolean focusable = !empty || isInFilterMode();
super.setFocusableInTouchMode(focusable && mDesiredFocusableInTouchModeState);
super.setFocusable(focusable && mDesiredFocusableState);
if (mEmptyView != null) {
updateEmptyStatus(adapter == null || adapter.isEmpty());
}
}
private void populate() {
if (mAdapter != null) {
for (int i = 0; i < mAdapter.getCount(); i++) {
addView(
itemBuilder(i)
.setBody(mAdapter.getBodyForPos(i, this))
.setPos(i)
.setListener(this)
.build());
}
}
}
/**
* Scrolls a list.
*
* @param absListView the list to be scrolled
* @param direction the direction to be scrolled
* @param allTheWay {@code true} to scroll the view all the way up or down, {@code false} to
* scroll one page up or down
* @return {@code true} if more scrolling can be done
*/
public <T extends AbsListView> boolean scrollList(
T absListView, int direction, boolean allTheWay) {
if (absListView == null) {
return false;
}
if (direction == DOWN) {
int listCount = absListView.getCount();
int lastVisiblePosition = absListView.getLastVisiblePosition();
if (allTheWay) {
scrollListToLine(absListView, listCount - 1);
return false;
}
if (lastVisiblePosition >= listCount - 1) {
if (lastVisiblePosition > 0) {
scrollListToLine(absListView, lastVisiblePosition);
}
return false;
}
int firstVisiblePosition = absListView.getFirstVisiblePosition();
if (firstVisiblePosition != lastVisiblePosition)
scrollListToLine(absListView, lastVisiblePosition);
else scrollListToLine(absListView, firstVisiblePosition + 1);
} else if (direction == UP) {
int firstVisiblePosition = absListView.getFirstVisiblePosition();
if (allTheWay || firstVisiblePosition < 2) {
scrollListToLine(absListView, 0);
return false;
}
int lastVisiblePosition = absListView.getLastVisiblePosition();
final int lines = lastVisiblePosition - firstVisiblePosition;
int lineToScrollTo = firstVisiblePosition - lines;
if (lineToScrollTo == lastVisiblePosition) lineToScrollTo--;
if (lineToScrollTo < 0) lineToScrollTo = 0;
scrollListToLine(absListView, lineToScrollTo);
}
sleeper.sleep();
return true;
}
void checkFocus() {
final T adapter = getAdapter();
final boolean empty = adapter == null || adapter.getCount() == 0;
final boolean focusable = !empty || isInFilterMode();
// The order in which we set focusable in touch mode/focusable may matter
// for the client, see View.setFocusableInTouchMode() comments for more
// details
super.setFocusableInTouchMode(focusable && mDesiredFocusableInTouchModeState);
super.setFocusable(focusable && mDesiredFocusableState);
if (mEmptyView != null) {
updateEmptyStatus((adapter == null) || adapter.isEmpty());
}
}
