/** Set state mode based on explicit user action. */
private void setUserMode(int mode) {
mState.userMode = mode;
/// M: Check the fragment get from FragmentManager whether is null.
DirectoryFragment directory = DirectoryFragment.get(getFragmentManager());
if (directory != null) {
directory.onUserModeChanged();
} else {
Log.w(TAG, "setUserMode with null DirectoryFragment in activity:" + this.hashCode());
}
}
private void onCurrentDirectoryChanged(int anim) {
final FragmentManager fm = getFragmentManager();
final RootInfo root = getCurrentRoot();
final DocumentInfo cwd = getCurrentDirectory();
mDirectoryContainer.setDrawDisappearingFirst(anim == ANIM_DOWN);
if (cwd == null) {
// No directory means recents
if (mState.action == ACTION_CREATE || mState.action == ACTION_OPEN_TREE) {
RecentsCreateFragment.show(fm);
} else {
DirectoryFragment.showRecentsOpen(fm, anim);
/// M: When state has stored, we need use store state to init fragment(this may happen when
// activity
/// re-create, in this case we need use the userMode store in saveInstance, and only when
// activity
/// first created we need follow the below design. {@
if (!mState.restored) {
// Start recents in grid when requesting visual things
final boolean visualMimes =
MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, mState.acceptMimes);
mState.userMode = visualMimes ? MODE_GRID : MODE_LIST;
mState.derivedMode = mState.userMode;
}
/// @}
}
} else {
if (mState.currentSearch != null) {
// Ongoing search
DirectoryFragment.showSearch(fm, root, mState.currentSearch, anim);
} else {
// Normal boring directory
DirectoryFragment.showNormal(fm, root, cwd, anim);
}
}
// Forget any replacement target
if (mState.action == ACTION_CREATE) {
final SaveFragment save = SaveFragment.get(fm);
if (save != null) {
save.setReplaceTarget(null);
}
}
if (mState.action == ACTION_OPEN_TREE) {
final PickFragment pick = PickFragment.get(fm);
if (pick != null) {
final CharSequence displayName = (mState.stack.size() <= 1) ? root.title : cwd.displayName;
pick.setPickTarget(cwd, displayName);
}
}
final RootsFragment roots = RootsFragment.get(fm);
if (roots != null) {
roots.onCurrentRootChanged();
}
updateActionBar();
invalidateOptionsMenu();
dumpStack();
}
private void setDisplayFileSize(boolean display) {
LocalPreferences.setDisplayFileSize(this, display);
mState.showSize = display;
DirectoryFragment.get(getFragmentManager()).onDisplayStateChanged();
invalidateOptionsMenu();
}