Files
Lawnchair/src/com/android/launcher3/Workspace.java
T
Jon Miranda 5aab8703ee Increase max distance for folder creation for tablets.
Tablets generally have larger cell sizes (relative to phones, and relative to
the icon sizes with the cells). By increasing the distance from 55% to 75% of
icon size, it is easier for users to meet the folder creation threshold before
the icon reorder timeout is triggered.

Bug: 110796219
Change-Id: I8264390b8510340f4062e05ec12d0755e93a80d8
2018-07-17 13:52:24 -07:00

3468 lines
139 KiB
Java

/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3;
import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.LauncherState.SPRING_LOADED;
import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_OVERLAY;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.LayoutTransition;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.annotation.SuppressLint;
import android.app.WallpaperManager;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.IBinder;
import android.os.Parcelable;
import android.os.UserHandle;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.Toast;
import com.android.launcher3.Launcher.LauncherOverlay;
import com.android.launcher3.LauncherAppWidgetHost.ProviderChangedListener;
import com.android.launcher3.LauncherStateManager.AnimationConfig;
import com.android.launcher3.accessibility.AccessibleDragListenerAdapter;
import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
import com.android.launcher3.anim.AnimatorSetBuilder;
import com.android.launcher3.anim.Interpolators;
import com.android.launcher3.badge.FolderBadgeInfo;
import com.android.launcher3.compat.AppWidgetManagerCompat;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.dragndrop.DragController;
import com.android.launcher3.dragndrop.DragLayer;
import com.android.launcher3.dragndrop.DragOptions;
import com.android.launcher3.dragndrop.DragView;
import com.android.launcher3.dragndrop.SpringLoadedDragController;
import com.android.launcher3.folder.Folder;
import com.android.launcher3.folder.FolderIcon;
import com.android.launcher3.folder.PreviewBackground;
import com.android.launcher3.graphics.DragPreviewProvider;
import com.android.launcher3.graphics.PreloadIconDrawable;
import com.android.launcher3.pageindicators.WorkspacePageIndicator;
import com.android.launcher3.popup.PopupContainerWithArrow;
import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
import com.android.launcher3.touch.ItemLongClickListener;
import com.android.launcher3.touch.WorkspaceTouchListener;
import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
import com.android.launcher3.util.ItemInfoMatcher;
import com.android.launcher3.util.LongArrayMap;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.Thunk;
import com.android.launcher3.util.WallpaperOffsetInterpolator;
import com.android.launcher3.widget.LauncherAppWidgetHostView;
import com.android.launcher3.widget.PendingAddShortcutInfo;
import com.android.launcher3.widget.PendingAddWidgetInfo;
import com.android.launcher3.widget.PendingAppWidgetHostView;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;
/**
* The workspace is a wide area with a wallpaper and a finite number of pages.
* Each page contains a number of icons, folders or widgets the user can
* interact with. A workspace is meant to be used with a fixed width only.
*/
public class Workspace extends PagedView<WorkspacePageIndicator>
implements DropTarget, DragSource, View.OnTouchListener,
DragController.DragListener, Insettable, LauncherStateManager.StateHandler {
private static final String TAG = "Launcher.Workspace";
/** The value that {@link #mTransitionProgress} must be greater than for
* {@link #transitionStateShouldAllowDrop()} to return true. */
private static final float ALLOW_DROP_TRANSITION_PROGRESS = 0.25f;
/** The value that {@link #mTransitionProgress} must be greater than for
* {@link #isFinishedSwitchingState()} ()} to return true. */
private static final float FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS = 0.5f;
private static final boolean ENFORCE_DRAG_EVENT_ORDER = false;
private static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400;
private static final int FADE_EMPTY_SCREEN_DURATION = 150;
private static final int ADJACENT_SCREEN_DROP_DURATION = 300;
private static final int DEFAULT_PAGE = 0;
private static final boolean MAP_NO_RECURSE = false;
private static final boolean MAP_RECURSE = true;
// The screen id used for the empty screen always present to the right.
public static final long EXTRA_EMPTY_SCREEN_ID = -201;
// The is the first screen. It is always present, even if its empty.
public static final long FIRST_SCREEN_ID = 0;
private LayoutTransition mLayoutTransition;
@Thunk final WallpaperManager mWallpaperManager;
private ShortcutAndWidgetContainer mDragSourceInternal;
@Thunk final LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>();
@Thunk final ArrayList<Long> mScreenOrder = new ArrayList<>();
@Thunk Runnable mRemoveEmptyScreenRunnable;
@Thunk boolean mDeferRemoveExtraEmptyScreen = false;
/**
* CellInfo for the cell that is currently being dragged
*/
private CellLayout.CellInfo mDragInfo;
/**
* Target drop area calculated during last acceptDrop call.
*/
@Thunk int[] mTargetCell = new int[2];
private int mDragOverX = -1;
private int mDragOverY = -1;
/**
* The CellLayout that is currently being dragged over
*/
@Thunk CellLayout mDragTargetLayout = null;
/**
* The CellLayout that we will show as highlighted
*/
private CellLayout mDragOverlappingLayout = null;
/**
* The CellLayout which will be dropped to
*/
private CellLayout mDropToLayout = null;
@Thunk final Launcher mLauncher;
@Thunk DragController mDragController;
private final int[] mTempXY = new int[2];
@Thunk float[] mDragViewVisualCenter = new float[2];
private final float[] mTempTouchCoordinates = new float[2];
private SpringLoadedDragController mSpringLoadedDragController;
private boolean mIsSwitchingState = false;
boolean mChildrenLayersEnabled = true;
private boolean mStripScreensOnPageStopMoving = false;
private DragPreviewProvider mOutlineProvider = null;
private boolean mWorkspaceFadeInAdjacentScreens;
final WallpaperOffsetInterpolator mWallpaperOffset;
private boolean mUnlockWallpaperFromDefaultPageOnLayout;
// Variables relating to the creation of user folders by hovering shortcuts over shortcuts
private static final int FOLDER_CREATION_TIMEOUT = 0;
public static final int REORDER_TIMEOUT = 650;
private final Alarm mFolderCreationAlarm = new Alarm();
private final Alarm mReorderAlarm = new Alarm();
private PreviewBackground mFolderCreateBg;
private FolderIcon mDragOverFolderIcon = null;
private boolean mCreateUserFolderOnDrop = false;
private boolean mAddToExistingFolderOnDrop = false;
private float mMaxDistanceForFolderCreation;
// Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
private float mXDown;
private float mYDown;
final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
// Relating to the animation of items being dropped externally
public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0;
public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1;
public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2;
public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3;
public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4;
// Related to dragging, folder creation and reordering
private static final int DRAG_MODE_NONE = 0;
private static final int DRAG_MODE_CREATE_FOLDER = 1;
private static final int DRAG_MODE_ADD_TO_FOLDER = 2;
private static final int DRAG_MODE_REORDER = 3;
private int mDragMode = DRAG_MODE_NONE;
@Thunk int mLastReorderX = -1;
@Thunk int mLastReorderY = -1;
private SparseArray<Parcelable> mSavedStates;
private final ArrayList<Integer> mRestoredPages = new ArrayList<>();
private float mCurrentScale;
private float mTransitionProgress;
// State related to Launcher Overlay
LauncherOverlay mLauncherOverlay;
boolean mScrollInteractionBegan;
boolean mStartedSendingScrollEvents;
float mLastOverlayScroll = 0;
boolean mOverlayShown = false;
private Runnable mOnOverlayHiddenCallback;
private boolean mForceDrawAdjacentPages = false;
// Total over scrollX in the overlay direction.
private float mOverlayTranslation;
// Handles workspace state transitions
private final WorkspaceStateTransitionAnimation mStateTransitionAnimation;
/**
* Used to inflate the Workspace from XML.
*
* @param context The application's context.
* @param attrs The attributes set containing the Workspace's customization values.
*/
public Workspace(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
/**
* Used to inflate the Workspace from XML.
*
* @param context The application's context.
* @param attrs The attributes set containing the Workspace's customization values.
* @param defStyle Unused.
*/
public Workspace(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mLauncher = Launcher.getLauncher(context);
mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
mWallpaperManager = WallpaperManager.getInstance(context);
mWallpaperOffset = new WallpaperOffsetInterpolator(this);
setHapticFeedbackEnabled(false);
initWorkspace();
// Disable multitouch across the workspace/all apps/customize tray
setMotionEventSplittingEnabled(true);
setOnTouchListener(new WorkspaceTouchListener(mLauncher, this));
}
@Override
public void setInsets(Rect insets) {
mInsets.set(insets);
DeviceProfile grid = mLauncher.getDeviceProfile();
mMaxDistanceForFolderCreation = grid.isTablet
? 0.75f * grid.iconSizePx
: 0.55f * grid.iconSizePx;
mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
Rect padding = grid.workspacePadding;
setPadding(padding.left, padding.top, padding.right, padding.bottom);
if (grid.shouldFadeAdjacentWorkspaceScreens()) {
// In landscape mode the page spacing is set to the default.
setPageSpacing(grid.defaultPageSpacingPx);
} else {
// In portrait, we want the pages spaced such that there is no
// overhang of the previous / next page into the current page viewport.
// We assume symmetrical padding in portrait mode.
setPageSpacing(Math.max(grid.defaultPageSpacingPx, padding.left + 1));
}
int paddingLeftRight = grid.cellLayoutPaddingLeftRightPx;
int paddingBottom = grid.cellLayoutBottomPaddingPx;
for (int i = mWorkspaceScreens.size() - 1; i >= 0; i--) {
mWorkspaceScreens.valueAt(i)
.setPadding(paddingLeftRight, 0, paddingLeftRight, paddingBottom);
}
}
/**
* Estimates the size of an item using spans: hSpan, vSpan.
*
* @return MAX_VALUE for each dimension if unsuccessful.
*/
public int[] estimateItemSize(ItemInfo itemInfo) {
int[] size = new int[2];
if (getChildCount() > 0) {
// Use the first page to estimate the child position
CellLayout cl = (CellLayout) getChildAt(0);
boolean isWidget = itemInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
Rect r = estimateItemPosition(cl, 0, 0, itemInfo.spanX, itemInfo.spanY);
float scale = 1;
if (isWidget) {
DeviceProfile profile = mLauncher.getDeviceProfile();
scale = Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y);
}
size[0] = r.width();
size[1] = r.height();
if (isWidget) {
size[0] /= scale;
size[1] /= scale;
}
return size;
} else {
size[0] = Integer.MAX_VALUE;
size[1] = Integer.MAX_VALUE;
return size;
}
}
public float getWallpaperOffsetForCenterPage() {
int pageScroll = getScrollForPage(getPageNearestToCenterOfScreen());
return mWallpaperOffset.wallpaperOffsetForScroll(pageScroll);
}
public Rect estimateItemPosition(CellLayout cl, int hCell, int vCell, int hSpan, int vSpan) {
Rect r = new Rect();
cl.cellToRect(hCell, vCell, hSpan, vSpan, r);
return r;
}
@Override
public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) {
if (ENFORCE_DRAG_EVENT_ORDER) {
enforceDragParity("onDragStart", 0, 0);
}
if (mDragInfo != null && mDragInfo.cell != null) {
CellLayout layout = (CellLayout) mDragInfo.cell.getParent().getParent();
layout.markCellsAsUnoccupiedForView(mDragInfo.cell);
}
if (mOutlineProvider != null) {
if (dragObject.dragView != null) {
Bitmap preview = dragObject.dragView.getPreviewBitmap();
// The outline is used to visualize where the item will land if dropped
mOutlineProvider.generateDragOutline(preview);
}
}
updateChildrenLayersEnabled();
// Do not add a new page if it is a accessible drag which was not started by the workspace.
// We do not support accessibility drag from other sources and instead provide a direct
// action for move/add to homescreen.
// When a accessible drag is started by the folder, we only allow rearranging withing the
// folder.
boolean addNewPage = !(options.isAccessibleDrag && dragObject.dragSource != this);
if (addNewPage) {
mDeferRemoveExtraEmptyScreen = false;
addExtraEmptyScreenOnDrag();
if (dragObject.dragInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
&& dragObject.dragSource != this) {
// When dragging a widget from different source, move to a page which has
// enough space to place this widget (after rearranging/resizing). We special case
// widgets as they cannot be placed inside a folder.
// Start at the current page and search right (on LTR) until finding a page with
// enough space. Since an empty screen is the furthest right, a page must be found.
int currentPage = getPageNearestToCenterOfScreen();
for (int pageIndex = currentPage; pageIndex < getPageCount(); pageIndex++) {
CellLayout page = (CellLayout) getPageAt(pageIndex);
if (page.hasReorderSolution(dragObject.dragInfo)) {
setCurrentPage(pageIndex);
break;
}
}
}
}
// Always enter the spring loaded mode
mLauncher.getStateManager().goToState(SPRING_LOADED);
}
public void deferRemoveExtraEmptyScreen() {
mDeferRemoveExtraEmptyScreen = true;
}
@Override
public void onDragEnd() {
if (ENFORCE_DRAG_EVENT_ORDER) {
enforceDragParity("onDragEnd", 0, 0);
}
if (!mDeferRemoveExtraEmptyScreen) {
removeExtraEmptyScreen(true, mDragSourceInternal != null);
}
updateChildrenLayersEnabled();
mDragInfo = null;
mOutlineProvider = null;
mDragSourceInternal = null;
}
/**
* Initializes various states for this workspace.
*/
protected void initWorkspace() {
mCurrentPage = DEFAULT_PAGE;
setClipToPadding(false);
setupLayoutTransition();
// Set the wallpaper dimensions when Launcher starts up
setWallpaperDimension();
}
private void setupLayoutTransition() {
// We want to show layout transitions when pages are deleted, to close the gap.
mLayoutTransition = new LayoutTransition();
mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING);
mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING);
mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING);
mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING);
setLayoutTransition(mLayoutTransition);
}
void enableLayoutTransitions() {
setLayoutTransition(mLayoutTransition);
}
void disableLayoutTransitions() {
setLayoutTransition(null);
}
@Override
public void onViewAdded(View child) {
if (!(child instanceof CellLayout)) {
throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
}
CellLayout cl = ((CellLayout) child);
cl.setOnInterceptTouchListener(this);
cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
super.onViewAdded(child);
}
public boolean isTouchActive() {
return mTouchState != TOUCH_STATE_REST;
}
/**
* Initializes and binds the first page
* @param qsb an existing qsb to recycle or null.
*/
public void bindAndInitFirstWorkspaceScreen(View qsb) {
if (!FeatureFlags.QSB_ON_FIRST_SCREEN) {
return;
}
// Add the first page
CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0);
// Always add a QSB on the first screen.
if (qsb == null) {
// In transposed layout, we add the QSB in the Grid. As workspace does not touch the
// edges, we do not need a full width QSB.
qsb = LayoutInflater.from(getContext())
.inflate(R.layout.search_container_workspace,firstPage, false);
}
CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1);
lp.canReorder = false;
if (!firstPage.addViewToCellLayout(qsb, 0, R.id.search_container_workspace, lp, true)) {
Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout");
}
}
public void removeAllWorkspaceScreens() {
// Disable all layout transitions before removing all pages to ensure that we don't get the
// transition animations competing with us changing the scroll when we add pages
disableLayoutTransitions();
// Recycle the QSB widget
View qsb = findViewById(R.id.search_container_workspace);
if (qsb != null) {
((ViewGroup) qsb.getParent()).removeView(qsb);
}
// Remove the pages and clear the screen models
removeFolderListeners();
removeAllViews();
mScreenOrder.clear();
mWorkspaceScreens.clear();
// Ensure that the first page is always present
bindAndInitFirstWorkspaceScreen(qsb);
// Re-enable the layout transitions
enableLayoutTransitions();
}
public void insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) {
// Find the index to insert this view into. If the empty screen exists, then
// insert it before that.
int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
if (insertIndex < 0) {
insertIndex = mScreenOrder.size();
}
insertNewWorkspaceScreen(screenId, insertIndex);
}
public void insertNewWorkspaceScreen(long screenId) {
insertNewWorkspaceScreen(screenId, getChildCount());
}
public CellLayout insertNewWorkspaceScreen(long screenId, int insertIndex) {
if (mWorkspaceScreens.containsKey(screenId)) {
throw new RuntimeException("Screen id " + screenId + " already exists!");
}
// Inflate the cell layout, but do not add it automatically so that we can get the newly
// created CellLayout.
CellLayout newScreen = (CellLayout) LayoutInflater.from(getContext()).inflate(
R.layout.workspace_screen, this, false /* attachToRoot */);
newScreen.getShortcutsAndWidgets().setId(R.id.workspace_page_container);
int paddingLeftRight = mLauncher.getDeviceProfile().cellLayoutPaddingLeftRightPx;
int paddingBottom = mLauncher.getDeviceProfile().cellLayoutBottomPaddingPx;
newScreen.setPadding(paddingLeftRight, 0, paddingLeftRight, paddingBottom);
mWorkspaceScreens.put(screenId, newScreen);
mScreenOrder.add(insertIndex, screenId);
addView(newScreen, insertIndex);
mStateTransitionAnimation.applyChildState(
mLauncher.getStateManager().getState(), newScreen, insertIndex);
if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
return newScreen;
}
public void addExtraEmptyScreenOnDrag() {
boolean lastChildOnScreen = false;
boolean childOnFinalScreen = false;
// Cancel any pending removal of empty screen
mRemoveEmptyScreenRunnable = null;
if (mDragSourceInternal != null) {
if (mDragSourceInternal.getChildCount() == 1) {
lastChildOnScreen = true;
}
CellLayout cl = (CellLayout) mDragSourceInternal.getParent();
if (indexOfChild(cl) == getChildCount() - 1) {
childOnFinalScreen = true;
}
}
// If this is the last item on the final screen
if (lastChildOnScreen && childOnFinalScreen) {
return;
}
if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) {
insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID);
}
}
public boolean addExtraEmptyScreen() {
if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) {
insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID);
return true;
}
return false;
}
private void convertFinalScreenToEmptyScreenIfNecessary() {
if (mLauncher.isWorkspaceLoading()) {
// Invalid and dangerous operation if workspace is loading
return;
}
if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return;
long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1);
CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId);
// If the final screen is empty, convert it to the extra empty screen
if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 &&
!finalScreen.isDropPending()) {
mWorkspaceScreens.remove(finalScreenId);
mScreenOrder.remove(finalScreenId);
// if this is the last screen, convert it to the empty screen
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen);
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
// Update the model if we have changed any screens
LauncherModel.updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
}
}
public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) {
removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens);
}
public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete,
final int delay, final boolean stripEmptyScreens) {
if (mLauncher.isWorkspaceLoading()) {
// Don't strip empty screens if the workspace is still loading
return;
}
if (delay > 0) {
postDelayed(new Runnable() {
@Override
public void run() {
removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens);
}
}, delay);
return;
}
convertFinalScreenToEmptyScreenIfNecessary();
if (hasExtraEmptyScreen()) {
int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
if (getNextPage() == emptyIndex) {
snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION);
fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION,
onComplete, stripEmptyScreens);
} else {
snapToPage(getNextPage(), 0);
fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION,
onComplete, stripEmptyScreens);
}
return;
} else if (stripEmptyScreens) {
// If we're not going to strip the empty screens after removing
// the extra empty screen, do it right away.
stripEmptyScreens();
}
if (onComplete != null) {
onComplete.run();
}
}
private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete,
final boolean stripEmptyScreens) {
// XXX: Do we need to update LM workspace screens below?
PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f);
PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f);
final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
mRemoveEmptyScreenRunnable = new Runnable() {
@Override
public void run() {
if (hasExtraEmptyScreen()) {
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID);
removeView(cl);
if (stripEmptyScreens) {
stripEmptyScreens();
}
// Update the page indicator to reflect the removed page.
showPageIndicatorAtCurrentScroll();
}
}
};
ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha);
oa.setDuration(duration);
oa.setStartDelay(delay);
oa.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
if (mRemoveEmptyScreenRunnable != null) {
mRemoveEmptyScreenRunnable.run();
}
if (onComplete != null) {
onComplete.run();
}
}
});
oa.start();
}
public boolean hasExtraEmptyScreen() {
return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && getChildCount() > 1;
}
public long commitExtraEmptyScreen() {
if (mLauncher.isWorkspaceLoading()) {
// Invalid and dangerous operation if workspace is loading
return -1;
}
CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID);
mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID);
mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID);
long newId = LauncherSettings.Settings.call(getContext().getContentResolver(),
LauncherSettings.Settings.METHOD_NEW_SCREEN_ID)
.getLong(LauncherSettings.Settings.EXTRA_VALUE);
mWorkspaceScreens.put(newId, cl);
mScreenOrder.add(newId);
// Update the model for the new screen
LauncherModel.updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
return newId;
}
public CellLayout getScreenWithId(long screenId) {
return mWorkspaceScreens.get(screenId);
}
public long getIdForScreen(CellLayout layout) {
int index = mWorkspaceScreens.indexOfValue(layout);
if (index != -1) {
return mWorkspaceScreens.keyAt(index);
}
return -1;
}
public int getPageIndexForScreenId(long screenId) {
return indexOfChild(mWorkspaceScreens.get(screenId));
}
public long getScreenIdForPageIndex(int index) {
if (0 <= index && index < mScreenOrder.size()) {
return mScreenOrder.get(index);
}
return -1;
}
public ArrayList<Long> getScreenOrder() {
return mScreenOrder;
}
public void stripEmptyScreens() {
if (mLauncher.isWorkspaceLoading()) {
// Don't strip empty screens if the workspace is still loading.
// This is dangerous and can result in data loss.
return;
}
if (isPageInTransition()) {
mStripScreensOnPageStopMoving = true;
return;
}
int currentPage = getNextPage();
ArrayList<Long> removeScreens = new ArrayList<>();
int total = mWorkspaceScreens.size();
for (int i = 0; i < total; i++) {
long id = mWorkspaceScreens.keyAt(i);
CellLayout cl = mWorkspaceScreens.valueAt(i);
// FIRST_SCREEN_ID can never be removed.
if ((!FeatureFlags.QSB_ON_FIRST_SCREEN || id > FIRST_SCREEN_ID)
&& cl.getShortcutsAndWidgets().getChildCount() == 0) {
removeScreens.add(id);
}
}
boolean isInAccessibleDrag = mLauncher.getAccessibilityDelegate().isInAccessibleDrag();
// We enforce at least one page to add new items to. In the case that we remove the last
// such screen, we convert the last screen to the empty screen
int minScreens = 1;
int pageShift = 0;
for (Long id: removeScreens) {
CellLayout cl = mWorkspaceScreens.get(id);
mWorkspaceScreens.remove(id);
mScreenOrder.remove(id);
if (getChildCount() > minScreens) {
if (indexOfChild(cl) < currentPage) {
pageShift++;
}
if (isInAccessibleDrag) {
cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
removeView(cl);
} else {
// if this is the last screen, convert it to the empty screen
mRemoveEmptyScreenRunnable = null;
mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl);
mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
}
}
if (!removeScreens.isEmpty()) {
// Update the model if we have changed any screens
LauncherModel.updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
}
if (pageShift >= 0) {
setCurrentPage(currentPage - pageShift);
}
}
/**
* At bind time, we use the rank (screenId) to compute x and y for hotseat items.
* See {@link #addInScreen}.
*/
public void addInScreenFromBind(View child, ItemInfo info) {
int x = info.cellX;
int y = info.cellY;
if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
int screenId = (int) info.screenId;
x = mLauncher.getHotseat().getCellXFromOrder(screenId);
y = mLauncher.getHotseat().getCellYFromOrder(screenId);
}
addInScreen(child, info.container, info.screenId, x, y, info.spanX, info.spanY);
}
/**
* Adds the specified child in the specified screen based on the {@param info}
* See {@link #addInScreen(View, long, long, int, int, int, int)}.
*/
public void addInScreen(View child, ItemInfo info) {
addInScreen(child, info.container, info.screenId, info.cellX, info.cellY,
info.spanX, info.spanY);
}
/**
* Adds the specified child in the specified screen. The position and dimension of
* the child are defined by x, y, spanX and spanY.
*
* @param child The child to add in one of the workspace's screens.
* @param screenId The screen in which to add the child.
* @param x The X position of the child in the screen's grid.
* @param y The Y position of the child in the screen's grid.
* @param spanX The number of cells spanned horizontally by the child.
* @param spanY The number of cells spanned vertically by the child.
*/
private void addInScreen(View child, long container, long screenId, int x, int y,
int spanX, int spanY) {
if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
if (getScreenWithId(screenId) == null) {
Log.e(TAG, "Skipping child, screenId " + screenId + " not found");
// DEBUGGING - Print out the stack trace to see where we are adding from
new Throwable().printStackTrace();
return;
}
}
if (screenId == EXTRA_EMPTY_SCREEN_ID) {
// This should never happen
throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID");
}
final CellLayout layout;
if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
layout = mLauncher.getHotseat().getLayout();
// Hide folder title in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(false);
}
} else {
// Show folder title if not in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(true);
}
layout = getScreenWithId(screenId);
}
ViewGroup.LayoutParams genericLp = child.getLayoutParams();
CellLayout.LayoutParams lp;
if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) {
lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
} else {
lp = (CellLayout.LayoutParams) genericLp;
lp.cellX = x;
lp.cellY = y;
lp.cellHSpan = spanX;
lp.cellVSpan = spanY;
}
if (spanX < 0 && spanY < 0) {
lp.isLockedToGrid = false;
}
// Get the canonical child id to uniquely represent this view in this screen
ItemInfo info = (ItemInfo) child.getTag();
int childId = mLauncher.getViewIdForItem(info);
boolean markCellsAsOccupied = !(child instanceof Folder);
if (!layout.addViewToCellLayout(child, -1, childId, lp, markCellsAsOccupied)) {
// TODO: This branch occurs when the workspace is adding views
// outside of the defined grid
// maybe we should be deleting these items from the LauncherModel?
Log.e(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
}
child.setHapticFeedbackEnabled(false);
child.setOnLongClickListener(ItemLongClickListener.INSTANCE_WORKSPACE);
if (child instanceof DropTarget) {
mDragController.addDropTarget((DropTarget) child);
}
}
/**
* Called directly from a CellLayout (not by the framework), after we've been added as a
* listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
* that it should intercept touch events, which is not something that is normally supported.
*/
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouch(View v, MotionEvent event) {
return shouldConsumeTouch(v);
}
private boolean shouldConsumeTouch(View v) {
return !workspaceIconsCanBeDragged()
|| (!workspaceInModalState() && indexOfChild(v) != mCurrentPage);
}
public boolean isSwitchingState() {
return mIsSwitchingState;
}
/** This differs from isSwitchingState in that we take into account how far the transition
* has completed. */
public boolean isFinishedSwitchingState() {
return !mIsSwitchingState
|| (mTransitionProgress > FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS);
}
@Override
public boolean dispatchUnhandledMove(View focused, int direction) {
if (workspaceInModalState() || !isFinishedSwitchingState()) {
// when the home screens are shrunken, shouldn't allow side-scrolling
return false;
}
return super.dispatchUnhandledMove(focused, direction);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
mXDown = ev.getX();
mYDown = ev.getY();
}
return super.onInterceptTouchEvent(ev);
}
@Override
protected void determineScrollingStart(MotionEvent ev) {
if (!isFinishedSwitchingState()) return;
float deltaX = ev.getX() - mXDown;
float absDeltaX = Math.abs(deltaX);
float absDeltaY = Math.abs(ev.getY() - mYDown);
if (Float.compare(absDeltaX, 0f) == 0) return;
float slope = absDeltaY / absDeltaX;
float theta = (float) Math.atan(slope);
if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) {
cancelCurrentPageLongPress();
}
if (theta > MAX_SWIPE_ANGLE) {
// Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
return;
} else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
// Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
// increase the touch slop to make it harder to begin scrolling the workspace. This
// results in vertically scrolling widgets to more easily. The higher the angle, the
// more we increase touch slop.
theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
float extraRatio = (float)
Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
} else {
// Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
super.determineScrollingStart(ev);
}
}
protected void onPageBeginTransition() {
super.onPageBeginTransition();
updateChildrenLayersEnabled();
}
protected void onPageEndTransition() {
super.onPageEndTransition();
updateChildrenLayersEnabled();
if (mDragController.isDragging()) {
if (workspaceInModalState()) {
// If we are in springloaded mode, then force an event to check if the current touch
// is under a new page (to scroll to)
mDragController.forceTouchMove();
}
}
if (mStripScreensOnPageStopMoving) {
stripEmptyScreens();
mStripScreensOnPageStopMoving = false;
}
}
protected void onScrollInteractionBegin() {
super.onScrollInteractionEnd();
mScrollInteractionBegan = true;
}
protected void onScrollInteractionEnd() {
super.onScrollInteractionEnd();
mScrollInteractionBegan = false;
if (mStartedSendingScrollEvents) {
mStartedSendingScrollEvents = false;
mLauncherOverlay.onScrollInteractionEnd();
}
}
public void setLauncherOverlay(LauncherOverlay overlay) {
mLauncherOverlay = overlay;
// A new overlay has been set. Reset event tracking
mStartedSendingScrollEvents = false;
onOverlayScrollChanged(0);
}
private boolean isScrollingOverlay() {
return mLauncherOverlay != null &&
((mIsRtl && getUnboundedScrollX() > mMaxScrollX) || (!mIsRtl && getUnboundedScrollX() < 0));
}
@Override
protected void snapToDestination() {
// If we're overscrolling the overlay, we make sure to immediately reset the PagedView
// to it's baseline position instead of letting the overscroll settle. The overlay handles
// it's own settling, and every gesture to the overlay should be self-contained and start
// from 0, so we zero it out here.
if (isScrollingOverlay()) {
// We reset mWasInOverscroll so that PagedView doesn't zero out the overscroll
// interaction when we call snapToPageImmediately.
mWasInOverscroll = false;
snapToPageImmediately(0);
} else {
super.snapToDestination();
}
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
super.onScrollChanged(l, t, oldl, oldt);
// Update the page indicator progress.
boolean isTransitioning = mIsSwitchingState
|| (getLayoutTransition() != null && getLayoutTransition().isRunning());
if (!isTransitioning) {
showPageIndicatorAtCurrentScroll();
}
updatePageAlphaValues();
enableHwLayersOnVisiblePages();
}
public void showPageIndicatorAtCurrentScroll() {
if (mPageIndicator != null) {
mPageIndicator.setScroll(getScrollX(), computeMaxScrollX());
}
}
@Override
protected void overScroll(float amount) {
boolean shouldScrollOverlay = mLauncherOverlay != null &&
((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl));
boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlayScroll != 0 &&
((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl));
if (shouldScrollOverlay) {
if (!mStartedSendingScrollEvents && mScrollInteractionBegan) {
mStartedSendingScrollEvents = true;
mLauncherOverlay.onScrollInteractionBegin();
}
mLastOverlayScroll = Math.abs(amount / getMeasuredWidth());
mLauncherOverlay.onScrollChange(mLastOverlayScroll, mIsRtl);
} else {
dampedOverScroll(amount);
}
if (shouldZeroOverlay) {
mLauncherOverlay.onScrollChange(0, mIsRtl);
}
}
@Override
protected boolean shouldFlingForVelocity(int velocityX) {
// When the overlay is moving, the fling or settle transition is controlled by the overlay.
return Float.compare(Math.abs(mOverlayTranslation), 0) == 0 &&
super.shouldFlingForVelocity(velocityX);
}
/**
* The overlay scroll is being controlled locally, just update our overlay effect
*/
public void onOverlayScrollChanged(float scroll) {
if (Float.compare(scroll, 1f) == 0) {
if (!mOverlayShown) {
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
Action.Direction.LEFT, ContainerType.WORKSPACE, 0);
}
mOverlayShown = true;
// Not announcing the overlay page for accessibility since it announces itself.
} else if (Float.compare(scroll, 0f) == 0) {
if (mOverlayShown) {
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
Action.Direction.RIGHT, ContainerType.WORKSPACE, -1);
} else if (Float.compare(mOverlayTranslation, 0f) != 0) {
// When arriving to 0 overscroll from non-zero overscroll, announce page for
// accessibility since default announcements were disabled while in overscroll
// state.
// Not doing this if mOverlayShown because in that case the accessibility service
// will announce the launcher window description upon regaining focus after
// switching from the overlay screen.
announcePageForAccessibility();
}
mOverlayShown = false;
tryRunOverlayCallback();
}
float offset = 0f;
scroll = Math.max(scroll - offset, 0);
scroll = Math.min(1, scroll / (1 - offset));
float alpha = 1 - Interpolators.DEACCEL_3.getInterpolation(scroll);
float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll;
if (mIsRtl) {
transX = -transX;
}
mOverlayTranslation = transX;
// TODO(adamcohen): figure out a final effect here. We may need to recommend
// different effects based on device performance. On at least one relatively high-end
// device I've tried, translating the launcher causes things to get quite laggy.
mLauncher.getDragLayer().setTranslationX(transX);
mLauncher.getDragLayer().getAlphaProperty(ALPHA_INDEX_OVERLAY).setValue(alpha);
}
/**
* @return false if the callback is still pending
*/
private boolean tryRunOverlayCallback() {
if (mOnOverlayHiddenCallback == null) {
// Return true as no callback is pending. This is used by OnWindowFocusChangeListener
// to remove itself if multiple focus handles were added.
return true;
}
if (mOverlayShown || !hasWindowFocus()) {
return false;
}
mOnOverlayHiddenCallback.run();
mOnOverlayHiddenCallback = null;
return true;
}
/**
* Runs the given callback when the minus one overlay is hidden. Specifically, it is run
* when launcher's window has focus and the overlay is no longer being shown. If a callback
* is already present, the new callback will chain off it so both are run.
*
* @return Whether the callback was deferred.
*/
public boolean runOnOverlayHidden(Runnable callback) {
if (mOnOverlayHiddenCallback == null) {
mOnOverlayHiddenCallback = callback;
} else {
// Chain the new callback onto the previous callback(s).
Runnable oldCallback = mOnOverlayHiddenCallback;
mOnOverlayHiddenCallback = () -> {
oldCallback.run();
callback.run();
};
}
if (!tryRunOverlayCallback()) {
ViewTreeObserver observer = getViewTreeObserver();
if (observer != null && observer.isAlive()) {
observer.addOnWindowFocusChangeListener(
new ViewTreeObserver.OnWindowFocusChangeListener() {
@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (tryRunOverlayCallback() && observer.isAlive()) {
observer.removeOnWindowFocusChangeListener(this);
}
}});
}
return true;
}
return false;
}
@Override
protected void notifyPageSwitchListener(int prevPage) {
super.notifyPageSwitchListener(prevPage);
if (prevPage != mCurrentPage) {
int swipeDirection = (prevPage < mCurrentPage) ? Action.Direction.RIGHT : Action.Direction.LEFT;
mLauncher.getUserEventDispatcher().logActionOnContainer(Action.Touch.SWIPE,
swipeDirection, ContainerType.WORKSPACE, prevPage);
}
}
protected void setWallpaperDimension() {
Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() {
@Override
public void run() {
final Point size = LauncherAppState.getIDP(getContext()).defaultWallpaperSize;
if (size.x != mWallpaperManager.getDesiredMinimumWidth()
|| size.y != mWallpaperManager.getDesiredMinimumHeight()) {
mWallpaperManager.suggestDesiredDimensions(size.x, size.y);
}
}
});
}
public void lockWallpaperToDefaultPage() {
mWallpaperOffset.setLockToDefaultPage(true);
}
public void unlockWallpaperFromDefaultPageOnNextLayout() {
if (mWallpaperOffset.isLockedToDefaultPage()) {
mUnlockWallpaperFromDefaultPageOnLayout = true;
requestLayout();
}
}
@Override
public void computeScroll() {
super.computeScroll();
mWallpaperOffset.syncWithScroll();
}
public void computeScrollWithoutInvalidation() {
computeScrollHelper(false);
}
@Override
protected void determineScrollingStart(MotionEvent ev, float touchSlopScale) {
if (!isSwitchingState()) {
super.determineScrollingStart(ev, touchSlopScale);
}
}
@Override
public void announceForAccessibility(CharSequence text) {
// Don't announce if apps is on top of us.
if (!mLauncher.isInState(ALL_APPS)) {
super.announceForAccessibility(text);
}
}
public void showOutlinesTemporarily() {
if (!mIsPageInTransition && !isTouchActive()) {
snapToPage(mCurrentPage);
}
}
private void updatePageAlphaValues() {
// We need to check the isDragging case because updatePageAlphaValues is called between
// goToState(SPRING_LOADED) and onStartStateTransition.
if (!workspaceInModalState() && !mIsSwitchingState && !mDragController.isDragging()) {
int screenCenter = getScrollX() + getMeasuredWidth() / 2;
for (int i = 0; i < getChildCount(); i++) {
CellLayout child = (CellLayout) getChildAt(i);
if (child != null) {
float scrollProgress = getScrollProgress(screenCenter, child, i);
float alpha = 1 - Math.abs(scrollProgress);
if (mWorkspaceFadeInAdjacentScreens) {
child.getShortcutsAndWidgets().setAlpha(alpha);
} else {
// Pages that are off-screen aren't important for accessibility.
child.getShortcutsAndWidgets().setImportantForAccessibility(
alpha > 0 ? IMPORTANT_FOR_ACCESSIBILITY_AUTO
: IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
}
}
}
}
}
protected void onAttachedToWindow() {
super.onAttachedToWindow();
IBinder windowToken = getWindowToken();
mWallpaperOffset.setWindowToken(windowToken);
computeScroll();
mDragController.setWindowToken(windowToken);
}
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mWallpaperOffset.setWindowToken(null);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
if (mUnlockWallpaperFromDefaultPageOnLayout) {
mWallpaperOffset.setLockToDefaultPage(false);
mUnlockWallpaperFromDefaultPageOnLayout = false;
}
if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
mWallpaperOffset.syncWithScroll();
mWallpaperOffset.jumpToFinal();
}
super.onLayout(changed, left, top, right, bottom);
updatePageAlphaValues();
}
@Override
public int getDescendantFocusability() {
if (workspaceInModalState()) {
return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
}
return super.getDescendantFocusability();
}
private boolean workspaceInModalState() {
return !mLauncher.isInState(NORMAL);
}
/** Returns whether a drag should be allowed to be started from the current workspace state. */
public boolean workspaceIconsCanBeDragged() {
return mLauncher.getStateManager().getState().workspaceIconsCanBeDragged;
}
private void updateChildrenLayersEnabled() {
boolean enableChildrenLayers = mIsSwitchingState || isPageInTransition();
if (enableChildrenLayers != mChildrenLayersEnabled) {
mChildrenLayersEnabled = enableChildrenLayers;
if (mChildrenLayersEnabled) {
enableHwLayersOnVisiblePages();
} else {
for (int i = 0; i < getPageCount(); i++) {
final CellLayout cl = (CellLayout) getChildAt(i);
cl.enableHardwareLayer(false);
}
}
}
}
private void enableHwLayersOnVisiblePages() {
if (mChildrenLayersEnabled) {
final int screenCount = getChildCount();
final int[] visibleScreens = getVisibleChildrenRange();
int leftScreen = visibleScreens[0];
int rightScreen = visibleScreens[1];
if (mForceDrawAdjacentPages) {
// In overview mode, make sure that the two side pages are visible.
leftScreen = Utilities.boundToRange(getCurrentPage() - 1, 0, rightScreen);
rightScreen = Utilities.boundToRange(getCurrentPage() + 1,
leftScreen, getPageCount() - 1);
}
if (leftScreen == rightScreen) {
// make sure we're caching at least two pages always
if (rightScreen < screenCount - 1) {
rightScreen++;
} else if (leftScreen > 0) {
leftScreen--;
}
}
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getPageAt(i);
// enable layers between left and right screen inclusive.
boolean enableLayer = leftScreen <= i && i <= rightScreen;
layout.enableHardwareLayer(enableLayer);
}
}
}
public void onWallpaperTap(MotionEvent ev) {
final int[] position = mTempXY;
getLocationOnScreen(position);
int pointerIndex = ev.getActionIndex();
position[0] += (int) ev.getX(pointerIndex);
position[1] += (int) ev.getY(pointerIndex);
mWallpaperManager.sendWallpaperCommand(getWindowToken(),
ev.getAction() == MotionEvent.ACTION_UP
? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
position[0], position[1], 0, null);
}
public void prepareDragWithProvider(DragPreviewProvider outlineProvider) {
mOutlineProvider = outlineProvider;
}
public void snapToPageFromOverView(int whichPage) {
snapToPage(whichPage, OVERVIEW_TRANSITION_MS, Interpolators.ZOOM_IN);
}
private void onStartStateTransition(LauncherState state) {
mIsSwitchingState = true;
mTransitionProgress = 0;
updateChildrenLayersEnabled();
}
private void onEndStateTransition() {
mIsSwitchingState = false;
mForceDrawAdjacentPages = false;
mTransitionProgress = 1;
updateChildrenLayersEnabled();
updateAccessibilityFlags();
}
/**
* Sets the current workspace {@link LauncherState} and updates the UI without any animations
*/
@Override
public void setState(LauncherState toState) {
onStartStateTransition(toState);
mStateTransitionAnimation.setState(toState);
onEndStateTransition();
}
/**
* Sets the current workspace {@link LauncherState}, then animates the UI
*/
@Override
public void setStateWithAnimation(LauncherState toState,
AnimatorSetBuilder builder, AnimationConfig config) {
StateTransitionListener listener = new StateTransitionListener(toState);
mStateTransitionAnimation.setStateWithAnimation(toState, builder, config);
// Invalidate the pages now, so that we have the visible pages before the
// animation is started
if (toState.hasMultipleVisiblePages) {
mForceDrawAdjacentPages = true;
}
invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1);
stepAnimator.addUpdateListener(listener);
stepAnimator.setDuration(config.duration);
stepAnimator.addListener(listener);
builder.play(stepAnimator);
}
public void updateAccessibilityFlags() {
// TODO: Update the accessibility flags appropriately when dragging.
int accessibilityFlag = mLauncher.getStateManager().getState().workspaceAccessibilityFlag;
if (!mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) {
int total = getPageCount();
for (int i = 0; i < total; i++) {
updateAccessibilityFlags(accessibilityFlag, (CellLayout) getPageAt(i));
}
setImportantForAccessibility(accessibilityFlag);
}
}
private void updateAccessibilityFlags(int accessibilityFlag, CellLayout page) {
page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
page.getShortcutsAndWidgets().setImportantForAccessibility(accessibilityFlag);
page.setContentDescription(null);
page.setAccessibilityDelegate(null);
}
public void startDrag(CellLayout.CellInfo cellInfo, DragOptions options) {
View child = cellInfo.cell;
mDragInfo = cellInfo;
child.setVisibility(INVISIBLE);
if (options.isAccessibleDrag) {
mDragController.addDragListener(new AccessibleDragListenerAdapter(
this, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG) {
@Override
protected void enableAccessibleDrag(boolean enable) {
super.enableAccessibleDrag(enable);
setEnableForLayout(mLauncher.getHotseat().getLayout(),enable);
}
});
}
beginDragShared(child, this, options);
}
public void beginDragShared(View child, DragSource source, DragOptions options) {
Object dragObject = child.getTag();
if (!(dragObject instanceof ItemInfo)) {
String msg = "Drag started with a view that has no tag set. This "
+ "will cause a crash (issue 11627249) down the line. "
+ "View: " + child + " tag: " + child.getTag();
throw new IllegalStateException(msg);
}
beginDragShared(child, source, (ItemInfo) dragObject,
new DragPreviewProvider(child), options);
}
public DragView beginDragShared(View child, DragSource source, ItemInfo dragObject,
DragPreviewProvider previewProvider, DragOptions dragOptions) {
float iconScale = 1f;
if (child instanceof BubbleTextView) {
Drawable icon = ((BubbleTextView) child).getIcon();
if (icon instanceof FastBitmapDrawable) {
iconScale = ((FastBitmapDrawable) icon).getAnimatedScale();
}
}
child.clearFocus();
child.setPressed(false);
mOutlineProvider = previewProvider;
// The drag bitmap follows the touch point around on the screen
final Bitmap b = previewProvider.createDragBitmap();
int halfPadding = previewProvider.previewPadding / 2;
float scale = previewProvider.getScaleAndPosition(b, mTempXY);
int dragLayerX = mTempXY[0];
int dragLayerY = mTempXY[1];
DeviceProfile grid = mLauncher.getDeviceProfile();
Point dragVisualizeOffset = null;
Rect dragRect = null;
if (child instanceof BubbleTextView) {
dragRect = new Rect();
((BubbleTextView) child).getIconBounds(dragRect);
dragLayerY += dragRect.top;
// Note: The dragRect is used to calculate drag layer offsets, but the
// dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
dragVisualizeOffset = new Point(- halfPadding, halfPadding);
} else if (child instanceof FolderIcon) {
int previewSize = grid.folderIconSizePx;
dragVisualizeOffset = new Point(- halfPadding, halfPadding - child.getPaddingTop());
dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize);
} else if (previewProvider instanceof ShortcutDragPreviewProvider) {
dragVisualizeOffset = new Point(- halfPadding, halfPadding);
}
// Clear the pressed state if necessary
if (child instanceof BubbleTextView) {
BubbleTextView icon = (BubbleTextView) child;
icon.clearPressedBackground();
}
if (child.getParent() instanceof ShortcutAndWidgetContainer) {
mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent();
}
if (child instanceof BubbleTextView && !dragOptions.isAccessibleDrag) {
PopupContainerWithArrow popupContainer = PopupContainerWithArrow
.showForIcon((BubbleTextView) child);
if (popupContainer != null) {
dragOptions.preDragCondition = popupContainer.createPreDragCondition();
mLauncher.getUserEventDispatcher().resetElapsedContainerMillis("dragging started");
}
}
DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source,
dragObject, dragVisualizeOffset, dragRect, scale * iconScale, scale, dragOptions);
dv.setIntrinsicIconScaleFactor(dragOptions.intrinsicIconScaleFactor);
return dv;
}
private boolean transitionStateShouldAllowDrop() {
return (!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) &&
workspaceIconsCanBeDragged();
}
/**
* {@inheritDoc}
*/
@Override
public boolean acceptDrop(DragObject d) {
// If it's an external drop (e.g. from All Apps), check if it should be accepted
CellLayout dropTargetLayout = mDropToLayout;
if (d.dragSource != this) {
// Don't accept the drop if we're not over a screen at time of drop
if (dropTargetLayout == null) {
return false;
}
if (!transitionStateShouldAllowDrop()) return false;
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
// We want the point to be mapped to the dragTarget.
if (mLauncher.isHotseatLayout(dropTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter);
}
int spanX;
int spanY;
if (mDragInfo != null) {
final CellLayout.CellInfo dragCellInfo = mDragInfo;
spanX = dragCellInfo.spanX;
spanY = dragCellInfo.spanY;
} else {
spanX = d.dragInfo.spanX;
spanY = d.dragInfo.spanY;
}
int minSpanX = spanX;
int minSpanY = spanY;
if (d.dragInfo instanceof PendingAddWidgetInfo) {
minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX;
minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY;
}
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout,
mTargetCell);
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
if (mCreateUserFolderOnDrop && willCreateUserFolder(d.dragInfo,
dropTargetLayout, mTargetCell, distance, true)) {
return true;
}
if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder(d.dragInfo,
dropTargetLayout, mTargetCell, distance)) {
return true;
}
int[] resultSpan = new int[2];
mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP);
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
// Don't accept the drop if there's no room for the item
if (!foundCell) {
onNoCellFound(dropTargetLayout);
return false;
}
}
long screenId = getIdForScreen(dropTargetLayout);
if (screenId == EXTRA_EMPTY_SCREEN_ID) {
commitExtraEmptyScreen();
}
return true;
}
boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell,
float distance, boolean considerTimeout) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
return willCreateUserFolder(info, dropOverView, considerTimeout);
}
boolean willCreateUserFolder(ItemInfo info, View dropOverView, boolean considerTimeout) {
if (dropOverView != null) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) {
return false;
}
}
boolean hasntMoved = false;
if (mDragInfo != null) {
hasntMoved = dropOverView == mDragInfo.cell;
}
if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) {
return false;
}
boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo);
boolean willBecomeShortcut =
(info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT ||
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT);
return (aboveShortcut && willBecomeShortcut);
}
boolean willAddToExistingUserFolder(ItemInfo dragInfo, CellLayout target, int[] targetCell,
float distance) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
return willAddToExistingUserFolder(dragInfo, dropOverView);
}
boolean willAddToExistingUserFolder(ItemInfo dragInfo, View dropOverView) {
if (dropOverView != null) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) {
return false;
}
}
if (dropOverView instanceof FolderIcon) {
FolderIcon fi = (FolderIcon) dropOverView;
if (fi.acceptDrop(dragInfo)) {
return true;
}
}
return false;
}
boolean createUserFolderIfNecessary(View newView, long container, CellLayout target,
int[] targetCell, float distance, boolean external, DragView dragView) {
if (distance > mMaxDistanceForFolderCreation) return false;
View v = target.getChildAt(targetCell[0], targetCell[1]);
boolean hasntMoved = false;
if (mDragInfo != null) {
CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
hasntMoved = (mDragInfo.cellX == targetCell[0] &&
mDragInfo.cellY == targetCell[1]) && (cellParent == target);
}
if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false;
mCreateUserFolderOnDrop = false;
final long screenId = getIdForScreen(target);
boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo);
boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo);
if (aboveShortcut && willBecomeShortcut) {
ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag();
ShortcutInfo destInfo = (ShortcutInfo) v.getTag();
// if the drag started here, we need to remove it from the workspace
if (!external) {
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
}
Rect folderLocation = new Rect();
float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
target.removeView(v);
FolderIcon fi =
mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]);
destInfo.cellX = -1;
destInfo.cellY = -1;
sourceInfo.cellX = -1;
sourceInfo.cellY = -1;
// If the dragView is null, we can't animate
boolean animate = dragView != null;
if (animate) {
// In order to keep everything continuous, we hand off the currently rendered
// folder background to the newly created icon. This preserves animation state.
fi.setFolderBackground(mFolderCreateBg);
mFolderCreateBg = new PreviewBackground();
fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale
);
} else {
fi.prepareCreateAnimation(v);
fi.addItem(destInfo);
fi.addItem(sourceInfo);
}
return true;
}
return false;
}
boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell,
float distance, DragObject d, boolean external) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
if (!mAddToExistingFolderOnDrop) return false;
mAddToExistingFolderOnDrop = false;
if (dropOverView instanceof FolderIcon) {
FolderIcon fi = (FolderIcon) dropOverView;
if (fi.acceptDrop(d.dragInfo)) {
fi.onDrop(d, false /* itemReturnedOnFailedDrop */);
// if the drag started here, we need to remove it from the workspace
if (!external) {
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
}
return true;
}
}
return false;
}
@Override
public void prepareAccessibilityDrop() { }
public void onDrop(final DragObject d, DragOptions options) {
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
CellLayout dropTargetLayout = mDropToLayout;
// We want the point to be mapped to the dragTarget.
if (dropTargetLayout != null) {
if (mLauncher.isHotseatLayout(dropTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter);
}
}
boolean droppedOnOriginalCell = false;
int snapScreen = -1;
boolean resizeOnDrop = false;
if (d.dragSource != this || mDragInfo == null) {
final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1] };
onDropExternal(touchXY, dropTargetLayout, d);
} else {
final View cell = mDragInfo.cell;
boolean droppedOnOriginalCellDuringTransition = false;
Runnable onCompleteRunnable = null;
if (dropTargetLayout != null && !d.cancelled) {
// Move internally
boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout);
boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
long container = hasMovedIntoHotseat ?
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
LauncherSettings.Favorites.CONTAINER_DESKTOP;
long screenId = (mTargetCell[0] < 0) ?
mDragInfo.screenId : getIdForScreen(dropTargetLayout);
int spanX = mDragInfo != null ? mDragInfo.spanX : 1;
int spanY = mDragInfo != null ? mDragInfo.spanY : 1;
// First we find the cell nearest to point at which the item is
// dropped, without any consideration to whether there is an item there.
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int)
mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell);
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
// If the item being dropped is a shortcut and the nearest drop
// cell also contains a shortcut, then create a folder with the two shortcuts.
if (createUserFolderIfNecessary(cell, container,
dropTargetLayout, mTargetCell, distance, false, d.dragView) ||
addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
distance, d, false)) {
mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
return;
}
// Aside from the special case where we're dropping a shortcut onto a shortcut,
// we need to find the nearest cell location that is vacant
ItemInfo item = d.dragInfo;
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
droppedOnOriginalCell = item.screenId == screenId && item.container == container
&& item.cellX == mTargetCell[0] && item.cellY == mTargetCell[1];
droppedOnOriginalCellDuringTransition = droppedOnOriginalCell && mIsSwitchingState;
// When quickly moving an item, a user may accidentally rearrange their
// workspace. So instead we move the icon back safely to its original position.
boolean returnToOriginalCellToPreventShuffling = !isFinishedSwitchingState()
&& !droppedOnOriginalCellDuringTransition && !dropTargetLayout
.isRegionVacant(mTargetCell[0], mTargetCell[1], spanX, spanY);
int[] resultSpan = new int[2];
if (returnToOriginalCellToPreventShuffling) {
mTargetCell[0] = mTargetCell[1] = -1;
} else {
mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell,
mTargetCell, resultSpan, CellLayout.MODE_ON_DROP);
}
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
// if the widget resizes on drop
if (foundCell && (cell instanceof AppWidgetHostView) &&
(resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) {
resizeOnDrop = true;
item.spanX = resultSpan[0];
item.spanY = resultSpan[1];
AppWidgetHostView awhv = (AppWidgetHostView) cell;
AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0],
resultSpan[1]);
}
if (foundCell) {
if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) {
snapScreen = getPageIndexForScreenId(screenId);
snapToPage(snapScreen);
}
final ItemInfo info = (ItemInfo) cell.getTag();
if (hasMovedLayouts) {
// Reparent the view
CellLayout parentCell = getParentCellLayoutForView(cell);
if (parentCell != null) {
parentCell.removeView(cell);
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
throw new NullPointerException("mDragInfo.cell has null parent");
}
addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1],
info.spanX, info.spanY);
}
// update the item's position after drop
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
lp.cellX = lp.tmpCellX = mTargetCell[0];
lp.cellY = lp.tmpCellY = mTargetCell[1];
lp.cellHSpan = item.spanX;
lp.cellVSpan = item.spanY;
lp.isLockedToGrid = true;
if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT &&
cell instanceof LauncherAppWidgetHostView) {
final CellLayout cellLayout = dropTargetLayout;
// We post this call so that the widget has a chance to be placed
// in its final location
final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo();
if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE
&& !d.accessibleDrag) {
onCompleteRunnable = new Runnable() {
public void run() {
if (!isPageInTransition()) {
AppWidgetResizeFrame.showForWidget(hostView, cellLayout);
}
}
};
}
}
mLauncher.getModelWriter().modifyItemInDatabase(info, container, screenId,
lp.cellX, lp.cellY, item.spanX, item.spanY);
} else {
if (!returnToOriginalCellToPreventShuffling) {
onNoCellFound(dropTargetLayout);
}
// If we can't find a drop location, we return the item to its original position
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
mTargetCell[0] = lp.cellX;
mTargetCell[1] = lp.cellY;
CellLayout layout = (CellLayout) cell.getParent().getParent();
layout.markCellsAsOccupiedForView(cell);
}
}
final CellLayout parent = (CellLayout) cell.getParent().getParent();
if (d.dragView.hasDrawn()) {
if (droppedOnOriginalCellDuringTransition) {
// Animate the item to its original position, while simultaneously exiting
// spring-loaded mode so the page meets the icon where it was picked up.
mLauncher.getDragController().animateDragViewToOriginalPosition(
onCompleteRunnable, cell, SPRING_LOADED_TRANSITION_MS);
mLauncher.getStateManager().goToState(NORMAL);
mLauncher.getDropTargetBar().onDragEnd();
parent.onDropChild(cell);
return;
}
final ItemInfo info = (ItemInfo) cell.getTag();
boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
|| info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
if (isWidget) {
int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE :
ANIMATE_INTO_POSITION_AND_DISAPPEAR;
animateWidgetDrop(info, parent, d.dragView, null, animationType, cell, false);
} else {
int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
this);
}
} else {
d.deferDragViewCleanupPostAnimation = false;
cell.setVisibility(VISIBLE);
}
parent.onDropChild(cell);
mLauncher.getStateManager().goToState(
NORMAL, SPRING_LOADED_EXIT_DELAY, onCompleteRunnable);
}
if (d.stateAnnouncer != null && !droppedOnOriginalCell) {
d.stateAnnouncer.completeAction(R.string.item_moved);
}
}
public void onNoCellFound(View dropTargetLayout) {
if (mLauncher.isHotseatLayout(dropTargetLayout)) {
Hotseat hotseat = mLauncher.getHotseat();
boolean droppedOnAllAppsIcon = !FeatureFlags.NO_ALL_APPS_ICON
&& mTargetCell != null && !mLauncher.getDeviceProfile().inv.isAllAppsButtonRank(
hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]));
if (!droppedOnAllAppsIcon) {
// Only show message when hotseat is full and drop target was not AllApps button
showOutOfSpaceMessage(true);
}
} else {
showOutOfSpaceMessage(false);
}
}
private void showOutOfSpaceMessage(boolean isHotseatLayout) {
int strId = (isHotseatLayout ? R.string.hotseat_out_of_space : R.string.out_of_space);
Toast.makeText(mLauncher, mLauncher.getString(strId), Toast.LENGTH_SHORT).show();
}
/**
* Computes the area relative to dragLayer which is used to display a page.
*/
public void getPageAreaRelativeToDragLayer(Rect outArea) {
CellLayout child = (CellLayout) getChildAt(getNextPage());
if (child == null) {
return;
}
ShortcutAndWidgetContainer boundingLayout = child.getShortcutsAndWidgets();
// Use the absolute left instead of the child left, as we want the visible area
// irrespective of the visible child. Since the view can only scroll horizontally, the
// top position is not affected.
mTempXY[0] = getPaddingLeft() + boundingLayout.getLeft();
mTempXY[1] = child.getTop() + boundingLayout.getTop();
float scale = mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY);
outArea.set(mTempXY[0], mTempXY[1],
(int) (mTempXY[0] + scale * boundingLayout.getMeasuredWidth()),
(int) (mTempXY[1] + scale * boundingLayout.getMeasuredHeight()));
}
@Override
public void onDragEnter(DragObject d) {
if (ENFORCE_DRAG_EVENT_ORDER) {
enforceDragParity("onDragEnter", 1, 1);
}
mCreateUserFolderOnDrop = false;
mAddToExistingFolderOnDrop = false;
mDropToLayout = null;
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1]);
}
@Override
public void onDragExit(DragObject d) {
if (ENFORCE_DRAG_EVENT_ORDER) {
enforceDragParity("onDragExit", -1, 0);
}
// Here we store the final page that will be dropped to, if the workspace in fact
// receives the drop
mDropToLayout = mDragTargetLayout;
if (mDragMode == DRAG_MODE_CREATE_FOLDER) {
mCreateUserFolderOnDrop = true;
} else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) {
mAddToExistingFolderOnDrop = true;
}
// Reset the previous drag target
setCurrentDropLayout(null);
setCurrentDragOverlappingLayout(null);
mSpringLoadedDragController.cancel();
}
private void enforceDragParity(String event, int update, int expectedValue) {
enforceDragParity(this, event, update, expectedValue);
for (int i = 0; i < getChildCount(); i++) {
enforceDragParity(getChildAt(i), event, update, expectedValue);
}
}
private void enforceDragParity(View v, String event, int update, int expectedValue) {
Object tag = v.getTag(R.id.drag_event_parity);
int value = tag == null ? 0 : (Integer) tag;
value += update;
v.setTag(R.id.drag_event_parity, value);
if (value != expectedValue) {
Log.e(TAG, event + ": Drag contract violated: " + value);
}
}
void setCurrentDropLayout(CellLayout layout) {
if (mDragTargetLayout != null) {
mDragTargetLayout.revertTempState();
mDragTargetLayout.onDragExit();
}
mDragTargetLayout = layout;
if (mDragTargetLayout != null) {
mDragTargetLayout.onDragEnter();
}
cleanupReorder(true);
cleanupFolderCreation();
setCurrentDropOverCell(-1, -1);
}
void setCurrentDragOverlappingLayout(CellLayout layout) {
if (mDragOverlappingLayout != null) {
mDragOverlappingLayout.setIsDragOverlapping(false);
}
mDragOverlappingLayout = layout;
if (mDragOverlappingLayout != null) {
mDragOverlappingLayout.setIsDragOverlapping(true);
}
// Invalidating the scrim will also force this CellLayout
// to be invalidated so that it is highlighted if necessary.
mLauncher.getDragLayer().getScrim().invalidate();
}
public CellLayout getCurrentDragOverlappingLayout() {
return mDragOverlappingLayout;
}
void setCurrentDropOverCell(int x, int y) {
if (x != mDragOverX || y != mDragOverY) {
mDragOverX = x;
mDragOverY = y;
setDragMode(DRAG_MODE_NONE);
}
}
void setDragMode(int dragMode) {
if (dragMode != mDragMode) {
if (dragMode == DRAG_MODE_NONE) {
cleanupAddToFolder();
// We don't want to cancel the re-order alarm every time the target cell changes
// as this feels to slow / unresponsive.
cleanupReorder(false);
cleanupFolderCreation();
} else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) {
cleanupReorder(true);
cleanupFolderCreation();
} else if (dragMode == DRAG_MODE_CREATE_FOLDER) {
cleanupAddToFolder();
cleanupReorder(true);
} else if (dragMode == DRAG_MODE_REORDER) {
cleanupAddToFolder();
cleanupFolderCreation();
}
mDragMode = dragMode;
}
}
private void cleanupFolderCreation() {
if (mFolderCreateBg != null) {
mFolderCreateBg.animateToRest();
}
mFolderCreationAlarm.setOnAlarmListener(null);
mFolderCreationAlarm.cancelAlarm();
}
private void cleanupAddToFolder() {
if (mDragOverFolderIcon != null) {
mDragOverFolderIcon.onDragExit();
mDragOverFolderIcon = null;
}
}
private void cleanupReorder(boolean cancelAlarm) {
// Any pending reorders are canceled
if (cancelAlarm) {
mReorderAlarm.cancelAlarm();
}
mLastReorderX = -1;
mLastReorderY = -1;
}
/*
*
* Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
* coordinate space. The argument xy is modified with the return result.
*/
void mapPointFromSelfToChild(View v, float[] xy) {
xy[0] = xy[0] - v.getLeft();
xy[1] = xy[1] - v.getTop();
}
boolean isPointInSelfOverHotseat(int x, int y) {
mTempXY[0] = x;
mTempXY[1] = y;
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true);
View hotseat = mLauncher.getHotseat();
return mTempXY[0] >= hotseat.getLeft() &&
mTempXY[0] <= hotseat.getRight() &&
mTempXY[1] >= hotseat.getTop() &&
mTempXY[1] <= hotseat.getBottom();
}
void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) {
mTempXY[0] = (int) xy[0];
mTempXY[1] = (int) xy[1];
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true);
mLauncher.getDragLayer().mapCoordInSelfToDescendant(hotseat.getLayout(), mTempXY);
xy[0] = mTempXY[0];
xy[1] = mTempXY[1];
}
private boolean isDragWidget(DragObject d) {
return (d.dragInfo instanceof LauncherAppWidgetInfo ||
d.dragInfo instanceof PendingAddWidgetInfo);
}
public void onDragOver(DragObject d) {
// Skip drag over events while we are dragging over side pages
if (!transitionStateShouldAllowDrop()) return;
ItemInfo item = d.dragInfo;
if (item == null) {
if (FeatureFlags.IS_DOGFOOD_BUILD) {
throw new NullPointerException("DragObject has null info");
}
return;
}
// Ensure that we have proper spans for the item that we are dropping
if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found");
mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter);
final View child = (mDragInfo == null) ? null : mDragInfo.cell;
if (setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1])) {
if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
mSpringLoadedDragController.cancel();
} else {
mSpringLoadedDragController.setAlarm(mDragTargetLayout);
}
}
// Handle the drag over
if (mDragTargetLayout != null) {
// We want the point to be mapped to the dragTarget.
if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter);
}
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY,
mDragTargetLayout, mTargetCell);
int reorderX = mTargetCell[0];
int reorderY = mTargetCell[1];
setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]);
float targetCellDistance = mDragTargetLayout.getDistanceFromCell(
mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell);
manageFolderFeedback(mDragTargetLayout, mTargetCell, targetCellDistance, d);
boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int)
mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX,
item.spanY, child, mTargetCell);
if (!nearestDropOccupied) {
mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider,
mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, d);
} else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER)
&& !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX ||
mLastReorderY != reorderY)) {
int[] resultSpan = new int[2];
mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY,
child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT);
// Otherwise, if we aren't adding to or creating a folder and there's no pending
// reorder, then we schedule a reorder
ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter,
minSpanX, minSpanY, item.spanX, item.spanY, d, child);
mReorderAlarm.setOnAlarmListener(listener);
mReorderAlarm.setAlarm(REORDER_TIMEOUT);
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER ||
!nearestDropOccupied) {
if (mDragTargetLayout != null) {
mDragTargetLayout.revertTempState();
}
}
}
}
/**
* Updates {@link #mDragTargetLayout} and {@link #mDragOverlappingLayout}
* based on the DragObject's position.
*
* The layout will be:
* - The Hotseat if the drag object is over it
* - A side page if we are in spring-loaded mode and the drag object is over it
* - The current page otherwise
*
* @return whether the layout is different from the current {@link #mDragTargetLayout}.
*/
private boolean setDropLayoutForDragObject(DragObject d, float centerX, float centerY) {
CellLayout layout = null;
// Test to see if we are over the hotseat first
if (mLauncher.getHotseat() != null && !isDragWidget(d)) {
if (isPointInSelfOverHotseat(d.x, d.y)) {
layout = mLauncher.getHotseat().getLayout();
}
}
int nextPage = getNextPage();
if (layout == null && !isPageInTransition()) {
// Check if the item is dragged over left page
mTempTouchCoordinates[0] = Math.min(centerX, d.x);
mTempTouchCoordinates[1] = d.y;
layout = verifyInsidePage(nextPage + (mIsRtl ? 1 : -1), mTempTouchCoordinates);
}
if (layout == null && !isPageInTransition()) {
// Check if the item is dragged over right page
mTempTouchCoordinates[0] = Math.max(centerX, d.x);
mTempTouchCoordinates[1] = d.y;
layout = verifyInsidePage(nextPage + (mIsRtl ? -1 : 1), mTempTouchCoordinates);
}
// Always pick the current page.
if (layout == null && nextPage >= 0 && nextPage < getPageCount()) {
layout = (CellLayout) getChildAt(nextPage);
}
if (layout != mDragTargetLayout) {
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
return true;
}
return false;
}
/**
* Returns the child CellLayout if the point is inside the page coordinates, null otherwise.
*/
private CellLayout verifyInsidePage(int pageNo, float[] touchXy) {
if (pageNo >= 0 && pageNo < getPageCount()) {
CellLayout cl = (CellLayout) getChildAt(pageNo);
mapPointFromSelfToChild(cl, touchXy);
if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
// This point is inside the cell layout
return cl;
}
}
return null;
}
private void manageFolderFeedback(CellLayout targetLayout,
int[] targetCell, float distance, DragObject dragObject) {
if (distance > mMaxDistanceForFolderCreation) {
if (mDragMode != DRAG_MODE_NONE) {
setDragMode(DRAG_MODE_NONE);
}
return;
}
final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], mTargetCell[1]);
ItemInfo info = dragObject.dragInfo;
boolean userFolderPending = willCreateUserFolder(info, dragOverView, false);
if (mDragMode == DRAG_MODE_NONE && userFolderPending &&
!mFolderCreationAlarm.alarmPending()) {
FolderCreationAlarmListener listener = new
FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]);
if (!dragObject.accessibleDrag) {
mFolderCreationAlarm.setOnAlarmListener(listener);
mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT);
} else {
listener.onAlarm(mFolderCreationAlarm);
}
if (dragObject.stateAnnouncer != null) {
dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper
.getDescriptionForDropOver(dragOverView, getContext()));
}
return;
}
boolean willAddToFolder = willAddToExistingUserFolder(info, dragOverView);
if (willAddToFolder && mDragMode == DRAG_MODE_NONE) {
mDragOverFolderIcon = ((FolderIcon) dragOverView);
mDragOverFolderIcon.onDragEnter(info);
if (targetLayout != null) {
targetLayout.clearDragOutlines();
}
setDragMode(DRAG_MODE_ADD_TO_FOLDER);
if (dragObject.stateAnnouncer != null) {
dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper
.getDescriptionForDropOver(dragOverView, getContext()));
}
return;
}
if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) {
setDragMode(DRAG_MODE_NONE);
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) {
setDragMode(DRAG_MODE_NONE);
}
}
class FolderCreationAlarmListener implements OnAlarmListener {
final CellLayout layout;
final int cellX;
final int cellY;
final PreviewBackground bg = new PreviewBackground();
public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
this.layout = layout;
this.cellX = cellX;
this.cellY = cellY;
BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY);
bg.setup(mLauncher, null, cell.getMeasuredWidth(), cell.getPaddingTop());
// The full preview background should appear behind the icon
bg.isClipping = false;
}
public void onAlarm(Alarm alarm) {
mFolderCreateBg = bg;
mFolderCreateBg.animateToAccept(layout, cellX, cellY);
layout.clearDragOutlines();
setDragMode(DRAG_MODE_CREATE_FOLDER);
}
}
class ReorderAlarmListener implements OnAlarmListener {
final float[] dragViewCenter;
final int minSpanX, minSpanY, spanX, spanY;
final DragObject dragObject;
final View child;
public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX,
int spanY, DragObject dragObject, View child) {
this.dragViewCenter = dragViewCenter;
this.minSpanX = minSpanX;
this.minSpanY = minSpanY;
this.spanX = spanX;
this.spanY = spanY;
this.child = child;
this.dragObject = dragObject;
}
public void onAlarm(Alarm alarm) {
int[] resultSpan = new int[2];
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout,
mTargetCell);
mLastReorderX = mTargetCell[0];
mLastReorderY = mTargetCell[1];
mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER);
if (mTargetCell[0] < 0 || mTargetCell[1] < 0) {
mDragTargetLayout.revertTempState();
} else {
setDragMode(DRAG_MODE_REORDER);
}
boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY;
mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider,
mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, dragObject);
}
}
@Override
public void getHitRectRelativeToDragLayer(Rect outRect) {
// We want the workspace to have the whole area of the display (it will find the correct
// cell layout to drop to in the existing drag/drop logic.
mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect);
}
/**
* Drop an item that didn't originate on one of the workspace screens.
* It may have come from Launcher (e.g. from all apps or customize), or it may have
* come from another app altogether.
*
* NOTE: This can also be called when we are outside of a drag event, when we want
* to add an item to one of the workspace screens.
*/
private void onDropExternal(final int[] touchXY, final CellLayout cellLayout, DragObject d) {
if (d.dragInfo instanceof PendingAddShortcutInfo) {
ShortcutInfo si = ((PendingAddShortcutInfo) d.dragInfo)
.activityInfo.createShortcutInfo();
if (si != null) {
d.dragInfo = si;
}
}
ItemInfo info = d.dragInfo;
int spanX = info.spanX;
int spanY = info.spanY;
if (mDragInfo != null) {
spanX = mDragInfo.spanX;
spanY = mDragInfo.spanY;
}
final long container = mLauncher.isHotseatLayout(cellLayout) ?
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
LauncherSettings.Favorites.CONTAINER_DESKTOP;
final long screenId = getIdForScreen(cellLayout);
if (!mLauncher.isHotseatLayout(cellLayout)
&& screenId != getScreenIdForPageIndex(mCurrentPage)
&& !mLauncher.isInState(SPRING_LOADED)) {
snapToPage(getPageIndexForScreenId(screenId));
}
if (info instanceof PendingAddItemInfo) {
final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) info;
boolean findNearestVacantCell = true;
if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
mTargetCell = findNearestArea(touchXY[0], touchXY[1], spanX, spanY,
cellLayout, mTargetCell);
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
if (willCreateUserFolder(d.dragInfo, cellLayout, mTargetCell, distance, true)
|| willAddToExistingUserFolder(
d.dragInfo, cellLayout, mTargetCell, distance)) {
findNearestVacantCell = false;
}
}
final ItemInfo item = d.dragInfo;
boolean updateWidgetSize = false;
if (findNearestVacantCell) {
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
int[] resultSpan = new int[2];
mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY,
null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL);
if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) {
updateWidgetSize = true;
}
item.spanX = resultSpan[0];
item.spanY = resultSpan[1];
}
Runnable onAnimationCompleteRunnable = new Runnable() {
@Override
public void run() {
// Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when
// adding an item that may not be dropped right away (due to a config activity)
// we defer the removal until the activity returns.
deferRemoveExtraEmptyScreen();
// When dragging and dropping from customization tray, we deal with creating
// widgets/shortcuts/folders in a slightly different way
mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell,
item.spanX, item.spanY);
}
};
boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
|| pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
AppWidgetHostView finalView = isWidget ?
((PendingAddWidgetInfo) pendingInfo).boundWidget : null;
if (finalView != null && updateWidgetSize) {
AppWidgetResizeFrame.updateWidgetSizeRanges(finalView, mLauncher, item.spanX,
item.spanY);
}
int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR;
if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null &&
((PendingAddWidgetInfo) pendingInfo).getHandler().needsConfigure()) {
animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN;
}
animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable,
animationStyle, finalView, true);
} else {
// This is for other drag/drop cases, like dragging from All Apps
mLauncher.getStateManager().goToState(NORMAL, SPRING_LOADED_EXIT_DELAY);
View view;
switch (info.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
if (info.container == NO_ID) {
// Came from all apps -- make a copy
if (info instanceof AppInfo) {
info = ((AppInfo) info).makeShortcut();
d.dragInfo = info;
} else if (info instanceof ShortcutInfo) {
info = new ShortcutInfo((ShortcutInfo) info);
d.dragInfo = info;
}
}
view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info);
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
(FolderInfo) info);
break;
default:
throw new IllegalStateException("Unknown item type: " + info.itemType);
}
// First we find the cell nearest to point at which the item is
// dropped, without any consideration to whether there is an item there.
if (touchXY != null) {
mTargetCell = findNearestArea(touchXY[0], touchXY[1], spanX, spanY,
cellLayout, mTargetCell);
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance,
true, d.dragView)) {
return;
}
if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d,
true)) {
return;
}
}
if (touchXY != null) {
// when dragging and dropping, just find the closest free spot
mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], 1, 1, 1, 1,
null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL);
} else {
cellLayout.findCellForSpan(mTargetCell, 1, 1);
}
// Add the item to DB before adding to screen ensures that the container and other
// values of the info is properly updated.
mLauncher.getModelWriter().addOrMoveItemInDatabase(info, container, screenId,
mTargetCell[0], mTargetCell[1]);
addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1],
info.spanX, info.spanY);
cellLayout.onDropChild(view);
cellLayout.getShortcutsAndWidgets().measureChild(view);
if (d.dragView != null) {
// We wrap the animation call in the temporary set and reset of the current
// cellLayout to its final transform -- this means we animate the drag view to
// the correct final location.
setFinalTransitionTransform();
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, this);
resetTransitionTransform();
}
}
}
public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) {
int[] unScaledSize = estimateItemSize(widgetInfo);
int visibility = layout.getVisibility();
layout.setVisibility(VISIBLE);
int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY);
int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY);
Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1],
Bitmap.Config.ARGB_8888);
layout.measure(width, height);
layout.layout(0, 0, unScaledSize[0], unScaledSize[1]);
layout.draw(new Canvas(b));
layout.setVisibility(visibility);
return b;
}
private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY,
DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, boolean scale) {
// Now we animate the dragView, (ie. the widget or shortcut preview) into its final
// location and size on the home screen.
int spanX = info.spanX;
int spanY = info.spanY;
Rect r = estimateItemPosition(layout, targetCell[0], targetCell[1], spanX, spanY);
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) {
DeviceProfile profile = mLauncher.getDeviceProfile();
Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y);
}
loc[0] = r.left;
loc[1] = r.top;
setFinalTransitionTransform();
float cellLayoutScale =
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true);
resetTransitionTransform();
if (scale) {
float dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth();
float dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight();
// The animation will scale the dragView about its center, so we need to center about
// the final location.
loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2
- Math.ceil(layout.getUnusedHorizontalSpace() / 2f);
loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2;
scaleXY[0] = dragViewScaleX * cellLayoutScale;
scaleXY[1] = dragViewScaleY * cellLayoutScale;
} else {
// Since we are not cross-fading the dragView, align the drag view to the
// final cell position.
float dragScale = dragView.getInitialScale() * cellLayoutScale;
loc[0] += (dragScale - 1) * dragView.getWidth() / 2;
loc[1] += (dragScale - 1) * dragView.getHeight() / 2;
scaleXY[0] = scaleXY[1] = dragScale;
// If a dragRegion was provided, offset the final position accordingly.
Rect dragRegion = dragView.getDragRegion();
if (dragRegion != null) {
loc[0] += cellLayoutScale * dragRegion.left;
loc[1] += cellLayoutScale * dragRegion.top;
}
}
}
public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, final DragView dragView,
final Runnable onCompleteRunnable, int animationType, final View finalView,
boolean external) {
Rect from = new Rect();
mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from);
int[] finalPos = new int[2];
float scaleXY[] = new float[2];
boolean scalePreview = !(info instanceof PendingAddShortcutInfo);
getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell,
scalePreview);
Resources res = mLauncher.getResources();
final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200;
boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET ||
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) {
Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView);
dragView.setCrossFadeBitmap(crossFadeBitmap);
dragView.crossFade((int) (duration * 0.8f));
} else if (isWidget && external) {
scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]);
}
DragLayer dragLayer = mLauncher.getDragLayer();
if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) {
mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f,
DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration);
} else {
int endStyle;
if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) {
endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE;
} else {
endStyle = DragLayer.ANIMATION_END_DISAPPEAR;
}
Runnable onComplete = new Runnable() {
@Override
public void run() {
if (finalView != null) {
finalView.setVisibility(VISIBLE);
}
if (onCompleteRunnable != null) {
onCompleteRunnable.run();
}
}
};
dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0],
finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle,
duration, this);
}
}
public void setFinalTransitionTransform() {
if (isSwitchingState()) {
mCurrentScale = getScaleX();
setScaleX(mStateTransitionAnimation.getFinalScale());
setScaleY(mStateTransitionAnimation.getFinalScale());
}
}
public void resetTransitionTransform() {
if (isSwitchingState()) {
setScaleX(mCurrentScale);
setScaleY(mCurrentScale);
}
}
/**
* Return the current CellInfo describing our current drag; this method exists
* so that Launcher can sync this object with the correct info when the activity is created/
* destroyed
*
*/
public CellLayout.CellInfo getDragInfo() {
return mDragInfo;
}
/**
* Calculate the nearest cell where the given object would be dropped.
*
* pixelX and pixelY should be in the coordinate system of layout
*/
@Thunk int[] findNearestArea(int pixelX, int pixelY,
int spanX, int spanY, CellLayout layout, int[] recycle) {
return layout.findNearestArea(
pixelX, pixelY, spanX, spanY, recycle);
}
void setup(DragController dragController) {
mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
mDragController = dragController;
// hardware layers on children are enabled on startup, but should be disabled until
// needed
updateChildrenLayersEnabled();
}
/**
* Called at the end of a drag which originated on the workspace.
*/
public void onDropCompleted(final View target, final DragObject d,
final boolean success) {
if (success) {
if (target != this && mDragInfo != null) {
removeWorkspaceItem(mDragInfo.cell);
}
} else if (mDragInfo != null) {
final CellLayout cellLayout = mLauncher.getCellLayout(
mDragInfo.container, mDragInfo.screenId);
if (cellLayout != null) {
cellLayout.onDropChild(mDragInfo.cell);
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
throw new RuntimeException("Invalid state: cellLayout == null in "
+ "Workspace#onDropCompleted. Please file a bug. ");
}
}
View cell = getHomescreenIconByItemId(d.originalDragInfo.id);
if (d.cancelled && cell != null) {
cell.setVisibility(VISIBLE);
}
mDragInfo = null;
}
/**
* For opposite operation. See {@link #addInScreen}.
*/
public void removeWorkspaceItem(View v) {
CellLayout parentCell = getParentCellLayoutForView(v);
if (parentCell != null) {
parentCell.removeView(v);
} else if (FeatureFlags.IS_DOGFOOD_BUILD) {
// When an app is uninstalled using the drop target, we wait until resume to remove
// the icon. We also remove all the corresponding items from the workspace at
// {@link Launcher#bindComponentsRemoved}. That call can come before or after
// {@link Launcher#mOnResumeCallbacks} depending on how busy the worker thread is.
Log.e(TAG, "mDragInfo.cell has null parent");
}
if (v instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) v);
}
}
/**
* Removes all folder listeners
*/
public void removeFolderListeners() {
mapOverItems(false, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View view) {
if (view instanceof FolderIcon) {
((FolderIcon) view).removeListeners();
}
return false;
}
});
}
public boolean isDropEnabled() {
return true;
}
@Override
protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
// We don't dispatch restoreInstanceState to our children using this code path.
// Some pages will be restored immediately as their items are bound immediately, and
// others we will need to wait until after their items are bound.
mSavedStates = container;
}
public void restoreInstanceStateForChild(int child) {
if (mSavedStates != null) {
mRestoredPages.add(child);
CellLayout cl = (CellLayout) getChildAt(child);
if (cl != null) {
cl.restoreInstanceState(mSavedStates);
}
}
}
public void restoreInstanceStateForRemainingPages() {
int count = getChildCount();
for (int i = 0; i < count; i++) {
if (!mRestoredPages.contains(i)) {
restoreInstanceStateForChild(i);
}
}
mRestoredPages.clear();
mSavedStates = null;
}
@Override
public boolean scrollLeft() {
boolean result = false;
if (!workspaceInModalState() && !mIsSwitchingState) {
result = super.scrollLeft();
}
Folder openFolder = Folder.getOpen(mLauncher);
if (openFolder != null) {
openFolder.completeDragExit();
}
return result;
}
@Override
public boolean scrollRight() {
boolean result = false;
if (!workspaceInModalState() && !mIsSwitchingState) {
result = super.scrollRight();
}
Folder openFolder = Folder.getOpen(mLauncher);
if (openFolder != null) {
openFolder.completeDragExit();
}
return result;
}
/**
* Returns a specific CellLayout
*/
CellLayout getParentCellLayoutForView(View v) {
ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts();
for (CellLayout layout : layouts) {
if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) {
return layout;
}
}
return null;
}
/**
* Returns a list of all the CellLayouts in the workspace.
*/
ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() {
ArrayList<CellLayout> layouts = new ArrayList<>();
int screenCount = getChildCount();
for (int screen = 0; screen < screenCount; screen++) {
layouts.add(((CellLayout) getChildAt(screen)));
}
if (mLauncher.getHotseat() != null) {
layouts.add(mLauncher.getHotseat().getLayout());
}
return layouts;
}
/**
* We should only use this to search for specific children. Do not use this method to modify
* ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from
* the hotseat and workspace pages
*/
ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts = new ArrayList<>();
int screenCount = getChildCount();
for (int screen = 0; screen < screenCount; screen++) {
childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets());
}
if (mLauncher.getHotseat() != null) {
childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets());
}
return childrenLayouts;
}
public View getHomescreenIconByItemId(final long id) {
return getFirstMatch(new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
return info != null && info.id == id;
}
});
}
public View getViewForTag(final Object tag) {
return getFirstMatch(new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
return info == tag;
}
});
}
public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) {
return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
return (info instanceof LauncherAppWidgetInfo) &&
((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId;
}
});
}
public View getFirstMatch(final ItemOperator operator) {
final View[] value = new View[1];
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (operator.evaluate(info, v)) {
value[0] = v;
return true;
}
return false;
}
});
return value[0];
}
void clearDropTargets() {
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (v instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) v);
}
// not done, process all the shortcuts
return false;
}
});
}
/**
* Removes items that match the {@param matcher}. When applications are removed
* as a part of an update, this is called to ensure that other widgets and application
* shortcuts are not removed.
*/
public void removeItemsByMatcher(final ItemInfoMatcher matcher) {
ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
for (final CellLayout layoutParent: cellLayouts) {
final ViewGroup layout = layoutParent.getShortcutsAndWidgets();
LongArrayMap<View> idToViewMap = new LongArrayMap<>();
ArrayList<ItemInfo> items = new ArrayList<>();
for (int j = 0; j < layout.getChildCount(); j++) {
final View view = layout.getChildAt(j);
if (view.getTag() instanceof ItemInfo) {
ItemInfo item = (ItemInfo) view.getTag();
items.add(item);
idToViewMap.put(item.id, view);
}
}
for (ItemInfo itemToRemove : matcher.filterItemInfos(items)) {
View child = idToViewMap.get(itemToRemove.id);
if (child != null) {
// Note: We can not remove the view directly from CellLayoutChildren as this
// does not re-mark the spaces as unoccupied.
layoutParent.removeViewInLayout(child);
if (child instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) child);
}
} else if (itemToRemove.container >= 0) {
// The item may belong to a folder.
View parent = idToViewMap.get(itemToRemove.container);
if (parent != null) {
FolderInfo folderInfo = (FolderInfo) parent.getTag();
folderInfo.prepareAutoUpdate();
folderInfo.remove((ShortcutInfo) itemToRemove, false);
}
}
}
}
// Strip all the empty screens
stripEmptyScreens();
}
public interface ItemOperator {
/**
* Process the next itemInfo, possibly with side-effect on the next item.
*
* @param info info for the shortcut
* @param view view for the shortcut
* @return true if done, false to continue the map
*/
boolean evaluate(ItemInfo info, View view);
}
/**
* Map the operator over the shortcuts and widgets, return the first-non-null value.
*
* @param recurse true: iterate over folder children. false: op get the folders themselves.
* @param op the operator to map over the shortcuts
*/
void mapOverItems(boolean recurse, ItemOperator op) {
ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers();
final int containerCount = containers.size();
for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) {
ShortcutAndWidgetContainer container = containers.get(containerIdx);
// map over all the shortcuts on the workspace
final int itemCount = container.getChildCount();
for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
View item = container.getChildAt(itemIdx);
ItemInfo info = (ItemInfo) item.getTag();
if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) {
FolderIcon folder = (FolderIcon) item;
ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder();
// map over all the children in the folder
final int childCount = folderChildren.size();
for (int childIdx = 0; childIdx < childCount; childIdx++) {
View child = folderChildren.get(childIdx);
info = (ItemInfo) child.getTag();
if (op.evaluate(info, child)) {
return;
}
}
} else {
if (op.evaluate(info, item)) {
return;
}
}
}
}
}
void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) {
int total = shortcuts.size();
final HashSet<ShortcutInfo> updates = new HashSet<>(total);
final HashSet<Long> folderIds = new HashSet<>();
for (int i = 0; i < total; i++) {
ShortcutInfo s = shortcuts.get(i);
updates.add(s);
folderIds.add(s.container);
}
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView &&
updates.contains(info)) {
ShortcutInfo si = (ShortcutInfo) info;
BubbleTextView shortcut = (BubbleTextView) v;
Drawable oldIcon = shortcut.getIcon();
boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable)
&& ((PreloadIconDrawable) oldIcon).hasNotCompleted();
shortcut.applyFromShortcutInfo(si, si.isPromise() != oldPromiseState);
}
// process all the shortcuts
return false;
}
});
// Update folder icons
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (info instanceof FolderInfo && folderIds.contains(info.id)) {
((FolderInfo) info).itemsChanged(false);
}
// process all the shortcuts
return false;
}
});
}
public void updateIconBadges(final Set<PackageUserKey> updatedBadges) {
final PackageUserKey packageUserKey = new PackageUserKey(null, null);
final HashSet<Long> folderIds = new HashSet<>();
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView
&& packageUserKey.updateFromItemInfo(info)) {
if (updatedBadges.contains(packageUserKey)) {
((BubbleTextView) v).applyBadgeState(info, true /* animate */);
folderIds.add(info.container);
}
}
// process all the shortcuts
return false;
}
});
// Update folder icons
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (info instanceof FolderInfo && folderIds.contains(info.id)
&& v instanceof FolderIcon) {
FolderBadgeInfo folderBadgeInfo = new FolderBadgeInfo();
for (ShortcutInfo si : ((FolderInfo) info).contents) {
folderBadgeInfo.addBadgeInfo(mLauncher.getBadgeInfoForItem(si));
}
((FolderIcon) v).setBadgeInfo(folderBadgeInfo);
}
// process all the shortcuts
return false;
}
});
}
public void removeAbandonedPromise(String packageName, UserHandle user) {
HashSet<String> packages = new HashSet<>(1);
packages.add(packageName);
ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packages, user);
mLauncher.getModelWriter().deleteItemsFromDatabase(matcher);
removeItemsByMatcher(matcher);
}
public void updateRestoreItems(final HashSet<ItemInfo> updates) {
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView
&& updates.contains(info)) {
((BubbleTextView) v).applyPromiseState(false /* promiseStateChanged */);
} else if (v instanceof PendingAppWidgetHostView
&& info instanceof LauncherAppWidgetInfo
&& updates.contains(info)) {
((PendingAppWidgetHostView) v).applyState();
}
// process all the shortcuts
return false;
}
});
}
public void widgetsRestored(final ArrayList<LauncherAppWidgetInfo> changedInfo) {
if (!changedInfo.isEmpty()) {
DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo,
mLauncher.getAppWidgetHost());
LauncherAppWidgetInfo item = changedInfo.get(0);
final AppWidgetProviderInfo widgetInfo;
if (item.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID)) {
widgetInfo = AppWidgetManagerCompat
.getInstance(mLauncher).findProvider(item.providerName, item.user);
} else {
widgetInfo = AppWidgetManagerCompat.getInstance(mLauncher)
.getLauncherAppWidgetInfo(item.appWidgetId);
}
if (widgetInfo != null) {
// Re-inflate the widgets which have changed status
widgetRefresh.run();
} else {
// widgetRefresh will automatically run when the packages are updated.
// For now just update the progress bars
mapOverItems(MAP_NO_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View view) {
if (view instanceof PendingAppWidgetHostView
&& changedInfo.contains(info)) {
((LauncherAppWidgetInfo) info).installProgress = 100;
((PendingAppWidgetHostView) view).applyState();
}
// process all the shortcuts
return false;
}
});
}
}
}
void moveToDefaultScreen() {
int page = DEFAULT_PAGE;
if (!workspaceInModalState() && getNextPage() != page) {
snapToPage(page);
}
View child = getChildAt(page);
if (child != null) {
child.requestFocus();
}
}
@Override
public int getExpectedHeight() {
return getMeasuredHeight() <= 0 || !mIsLayoutValid
? mLauncher.getDeviceProfile().heightPx : getMeasuredHeight();
}
@Override
public int getExpectedWidth() {
return getMeasuredWidth() <= 0 || !mIsLayoutValid
? mLauncher.getDeviceProfile().widthPx : getMeasuredWidth();
}
@Override
protected boolean canAnnouncePageDescription() {
// Disable announcements while overscrolling potentially to overlay screen because if we end
// up on the overlay screen, it will take care of announcing itself.
return Float.compare(mOverlayTranslation, 0f) == 0;
}
@Override
protected String getCurrentPageDescription() {
int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
return getPageDescription(page);
}
private String getPageDescription(int page) {
int nScreens = getChildCount();
int extraScreenId = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID);
if (extraScreenId >= 0 && nScreens > 1) {
if (page == extraScreenId) {
return getContext().getString(R.string.workspace_new_page);
}
nScreens--;
}
if (nScreens == 0) {
// When the workspace is not loaded, we do not know how many screen will be bound.
return getContext().getString(R.string.all_apps_home_button_label);
}
return getContext().getString(R.string.workspace_scroll_format, page + 1, nScreens);
}
@Override
public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) {
target.gridX = info.cellX;
target.gridY = info.cellY;
target.pageIndex = getCurrentPage();
targetParent.containerType = ContainerType.WORKSPACE;
if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
target.rank = info.rank;
targetParent.containerType = ContainerType.HOTSEAT;
} else if (info.container >= 0) {
targetParent.containerType = ContainerType.FOLDER;
}
}
/**
* Used as a workaround to ensure that the AppWidgetService receives the
* PACKAGE_ADDED broadcast before updating widgets.
*/
private class DeferredWidgetRefresh implements Runnable, ProviderChangedListener {
private final ArrayList<LauncherAppWidgetInfo> mInfos;
private final LauncherAppWidgetHost mHost;
private final Handler mHandler;
private boolean mRefreshPending;
DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos,
LauncherAppWidgetHost host) {
mInfos = infos;
mHost = host;
mHandler = new Handler();
mRefreshPending = true;
mHost.addProviderChangeListener(this);
// Force refresh after 10 seconds, if we don't get the provider changed event.
// This could happen when the provider is no longer available in the app.
mHandler.postDelayed(this, 10000);
}
@Override
public void run() {
mHost.removeProviderChangeListener(this);
mHandler.removeCallbacks(this);
if (!mRefreshPending) {
return;
}
mRefreshPending = false;
ArrayList<PendingAppWidgetHostView> views = new ArrayList<>(mInfos.size());
mapOverItems(MAP_NO_RECURSE, (info, view) -> {
if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) {
views.add((PendingAppWidgetHostView) view);
}
// process all children
return false;
});
for (PendingAppWidgetHostView view : views) {
view.reInflate();
}
}
@Override
public void notifyWidgetProvidersChanged() {
run();
}
}
private class StateTransitionListener extends AnimatorListenerAdapter
implements AnimatorUpdateListener {
private final LauncherState mToState;
StateTransitionListener(LauncherState toState) {
mToState = toState;
}
@Override
public void onAnimationUpdate(ValueAnimator anim) {
mTransitionProgress = anim.getAnimatedFraction();
}
@Override
public void onAnimationStart(Animator animation) {
onStartStateTransition(mToState);
}
@Override
public void onAnimationEnd(Animator animation) {
onEndStateTransition();
}
}
}