Files
Lawnchair/src/com/android/launcher3/Workspace.java
T
Sunny Goyal 2e1efb480a Changing the widget loading strategy
Widget is loaded only when the user enters the overview mode and we keep
the list updated as long as the user is in the overview mode. Once the user
leaves the overview mode, we stop responding to widget updates

Bug: 26077457
Change-Id: I9e4904b8f1300bfe0d77e2bc5f59aa6963fad8d1
2016-03-09 20:21:22 -08:00

4313 lines
169 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 android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.LayoutTransition;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.WallpaperManager;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.PointF;
import android.graphics.Rect;
import android.graphics.Region.Op;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseArray;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewDebug;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.Interpolator;
import android.widget.TextView;
import com.android.launcher3.compat.AppWidgetManagerCompat;
import com.android.launcher3.folder.Folder;
import com.android.launcher3.folder.FolderIcon;
import com.android.launcher3.Launcher.CustomContentCallbacks;
import com.android.launcher3.Launcher.LauncherOverlay;
import com.android.launcher3.UninstallDropTarget.UninstallSource;
import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource;
import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate;
import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper;
import com.android.launcher3.compat.UserHandleCompat;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.config.ProviderConfig;
import com.android.launcher3.dragndrop.DragController;
import com.android.launcher3.dragndrop.DragLayer;
import com.android.launcher3.dragndrop.DragScroller;
import com.android.launcher3.dragndrop.DragView;
import com.android.launcher3.dragndrop.SpringLoadedDragController;
import com.android.launcher3.util.LongArrayMap;
import com.android.launcher3.util.Thunk;
import com.android.launcher3.util.WallpaperOffsetInterpolator;
import com.android.launcher3.widget.PendingAddShortcutInfo;
import com.android.launcher3.widget.PendingAddWidgetInfo;
import com.android.wallpaperpicker.WallpaperUtils;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.concurrent.atomic.AtomicInteger;
/**
* 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
implements DropTarget, DragSource, DragScroller, View.OnTouchListener,
DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener,
Insettable, UninstallSource, AccessibilityDragSource, Stats.LaunchSourceProvider {
private static final String TAG = "Launcher.Workspace";
private static 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 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 final static long EXTRA_EMPTY_SCREEN_ID = -201;
private final static long CUSTOM_CONTENT_SCREEN_ID = -301;
private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200;
private long mTouchDownTime = -1;
private long mCustomContentShowTime = -1;
private LayoutTransition mLayoutTransition;
@Thunk final WallpaperManager mWallpaperManager;
private ShortcutAndWidgetContainer mDragSourceInternal;
@Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>();
@Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>();
@Thunk Runnable mRemoveEmptyScreenRunnable;
@Thunk boolean mDeferRemoveExtraEmptyScreen = false;
@Thunk boolean mAddNewPageOnDrag = true;
/**
* 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;
CustomContentCallbacks mCustomContentCallbacks;
boolean mCustomContentShowing;
private float mLastCustomContentScrollProgress = -1f;
private String mCustomContentDescription = "";
/**
* The CellLayout that is currently being dragged over
*/
@Thunk CellLayout mDragTargetLayout = null;
/**
* The CellLayout that we will show as glowing
*/
private CellLayout mDragOverlappingLayout = null;
/**
* The CellLayout which will be dropped to
*/
private CellLayout mDropToLayout = null;
@Thunk Launcher mLauncher;
@Thunk IconCache mIconCache;
@Thunk DragController mDragController;
// These are temporary variables to prevent having to allocate a new object just to
// return an (x, y) value from helper functions. Do NOT use them to maintain other state.
private static final Rect sTempRect = new Rect();
private final int[] mTempXY = new int[2];
@Thunk float[] mDragViewVisualCenter = new float[2];
private float[] mTempCellLayoutCenterCoordinates = new float[2];
private int[] mTempVisiblePagesRange = new int[2];
private Matrix mTempMatrix = new Matrix();
private SpringLoadedDragController mSpringLoadedDragController;
private float mSpringLoadedShrinkFactor;
private float mOverviewModeShrinkFactor;
// State variable that indicates whether the pages are small (ie when you're
// in all apps or customize mode)
enum State {
NORMAL (SearchDropTargetBar.State.SEARCH_BAR, false),
NORMAL_HIDDEN (SearchDropTargetBar.State.INVISIBLE_TRANSLATED, false),
SPRING_LOADED (SearchDropTargetBar.State.DROP_TARGET, false),
OVERVIEW (SearchDropTargetBar.State.INVISIBLE, true),
OVERVIEW_HIDDEN (SearchDropTargetBar.State.INVISIBLE, true);
public final SearchDropTargetBar.State searchDropTargetBarState;
public final boolean shouldUpdateWidget;
State(SearchDropTargetBar.State searchBarState, boolean shouldUpdateWidget) {
searchDropTargetBarState = searchBarState;
this.shouldUpdateWidget = shouldUpdateWidget;
}
}
@ViewDebug.ExportedProperty(category = "launcher")
private State mState = State.NORMAL;
private boolean mIsSwitchingState = false;
boolean mAnimatingViewIntoPlace = false;
boolean mChildrenLayersEnabled = true;
private boolean mStripScreensOnPageStopMoving = false;
/** Is the user is dragging an item near the edge of a page? */
private boolean mInScrollArea = false;
private HolographicOutlineHelper mOutlineHelper;
@Thunk Bitmap mDragOutline = null;
public static final int DRAG_BITMAP_PADDING = 2;
private boolean mWorkspaceFadeInAdjacentScreens;
final WallpaperOffsetInterpolator mWallpaperOffset;
@Thunk Runnable mDelayedResizeRunnable;
private Runnable mDelayedSnapToPageRunnable;
// 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 = 350;
private final Alarm mFolderCreationAlarm = new Alarm();
private final Alarm mReorderAlarm = new Alarm();
private FolderIcon.PreviewBackground mFolderCreateBg = new FolderIcon.PreviewBackground();
private FolderIcon mDragOverFolderIcon = null;
private boolean mCreateUserFolderOnDrop = false;
private boolean mAddToExistingFolderOnDrop = false;
private float mMaxDistanceForFolderCreation;
private final Canvas mCanvas = new Canvas();
// 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<Integer>();
private float mCurrentScale;
private float mTransitionProgress;
@Thunk Runnable mDeferredAction;
private boolean mDeferDropAfterUninstall;
private boolean mUninstallSuccessful;
// State related to Launcher Overlay
LauncherOverlay mLauncherOverlay;
boolean mScrollInteractionBegan;
boolean mStartedSendingScrollEvents;
float mLastOverlaySroll = 0;
// Total over scrollX in the overlay direction.
private int mUnboundedScrollX;
private boolean mForceDrawAdjacentPages = false;
// Total over scrollX in the overlay direction.
private float mOverlayTranslation;
// Handles workspace state transitions
private WorkspaceStateTransitionAnimation mStateTransitionAnimation;
private AccessibilityDelegate mPagesAccessibilityDelegate;
/**
* 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);
mOutlineHelper = HolographicOutlineHelper.obtain(context);
mLauncher = (Launcher) context;
mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
final Resources res = getResources();
DeviceProfile grid = mLauncher.getDeviceProfile();
mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
mFadeInAdjacentScreens = false;
mWallpaperManager = WallpaperManager.getInstance(context);
mWallpaperOffset = new WallpaperOffsetInterpolator(this);
mSpringLoadedShrinkFactor =
res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f;
mOverviewModeShrinkFactor =
res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f;
setOnHierarchyChangeListener(this);
setHapticFeedbackEnabled(false);
initWorkspace();
// Disable multitouch across the workspace/all apps/customize tray
setMotionEventSplittingEnabled(true);
}
@Override
public void setInsets(Rect insets) {
mInsets.set(insets);
CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID);
if (customScreen != null) {
View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0);
if (customContent instanceof Insettable) {
((Insettable) customContent).setInsets(mInsets);
}
}
}
// estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each
// dimension if unsuccessful
public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) {
int[] size = new int[2];
if (getChildCount() > 0) {
// Use the first non-custom page to estimate the child position
CellLayout cl = (CellLayout) getChildAt(numCustomPages());
Rect r = estimateItemPosition(cl, 0, 0, itemInfo.spanX, itemInfo.spanY);
size[0] = r.width();
size[1] = r.height();
if (springLoaded) {
size[0] *= mSpringLoadedShrinkFactor;
size[1] *= mSpringLoadedShrinkFactor;
}
return size;
} else {
size[0] = Integer.MAX_VALUE;
size[1] = Integer.MAX_VALUE;
return size;
}
}
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(final DragSource source, ItemInfo info, int dragAction) {
if (ENFORCE_DRAG_EVENT_ORDER) {
enfoceDragParity("onDragStart", 0, 0);
}
updateChildrenLayersEnabled(false);
mLauncher.lockScreenOrientation();
mLauncher.onInteractionBegin();
// Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging
InstallShortcutReceiver.enableInstallQueue();
if (mAddNewPageOnDrag) {
mDeferRemoveExtraEmptyScreen = false;
addExtraEmptyScreenOnDrag();
}
}
public void setAddNewPageOnDrag(boolean addPage) {
mAddNewPageOnDrag = addPage;
}
public void deferRemoveExtraEmptyScreen() {
mDeferRemoveExtraEmptyScreen = true;
}
@Override
public void onDragEnd() {
if (ENFORCE_DRAG_EVENT_ORDER) {
enfoceDragParity("onDragEnd", 0, 0);
}
if (!mDeferRemoveExtraEmptyScreen) {
removeExtraEmptyScreen(true, mDragSourceInternal != null);
}
updateChildrenLayersEnabled(false);
mLauncher.unlockScreenOrientation(false);
// Re-enable any Un/InstallShortcutReceiver and now process any queued items
InstallShortcutReceiver.disableAndFlushInstallQueue(getContext());
mDragSourceInternal = null;
mLauncher.onInteractionEnd();
}
/**
* Initializes various states for this workspace.
*/
protected void initWorkspace() {
mCurrentPage = getDefaultPage();
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = mLauncher.getDeviceProfile();
mIconCache = app.getIconCache();
setWillNotDraw(false);
setClipChildren(false);
setClipToPadding(false);
setChildrenDrawnWithCacheEnabled(true);
setMinScale(mOverviewModeShrinkFactor);
setupLayoutTransition();
mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx);
// Set the wallpaper dimensions when Launcher starts up
setWallpaperDimension();
setEdgeGlowColor(getResources().getColor(R.color.workspace_edge_effect_color));
}
private int getDefaultPage() {
return numCustomPages();
}
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 onChildViewAdded(View parent, View child) {
if (!(child instanceof CellLayout)) {
throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
}
CellLayout cl = ((CellLayout) child);
cl.setOnInterceptTouchListener(this);
cl.setClickable(true);
cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
super.onChildViewAdded(parent, child);
}
protected boolean shouldDrawChild(View child) {
final CellLayout cl = (CellLayout) child;
return super.shouldDrawChild(child) &&
(mIsSwitchingState ||
cl.getShortcutsAndWidgets().getAlpha() > 0 ||
cl.getBackgroundAlpha() > 0);
}
/**
* @return The open folder on the current screen, or null if there is none
*/
public Folder getOpenFolder() {
DragLayer dragLayer = mLauncher.getDragLayer();
int count = dragLayer.getChildCount();
for (int i = 0; i < count; i++) {
View child = dragLayer.getChildAt(i);
if (child instanceof Folder) {
Folder folder = (Folder) child;
if (folder.getInfo().opened)
return folder;
}
}
return null;
}
boolean isTouchActive() {
return mTouchState != TOUCH_STATE_REST;
}
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 or the
// custom content screen
disableLayoutTransitions();
// Since we increment the current page when we call addCustomContentPage via bindScreens
// (and other places), we need to adjust the current page back when we clear the pages
if (hasCustomContent()) {
removeCustomContentPage();
}
// Remove the pages and clear the screen models
removeAllViews();
mScreenOrder.clear();
mWorkspaceScreens.clear();
// Re-enable the layout transitions
enableLayoutTransitions();
}
public long 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();
}
return insertNewWorkspaceScreen(screenId, insertIndex);
}
public long insertNewWorkspaceScreen(long screenId) {
return insertNewWorkspaceScreen(screenId, getChildCount());
}
public long 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) mLauncher.getLayoutInflater().inflate(
R.layout.workspace_screen, this, false /* attachToRoot */);
newScreen.setOnLongClickListener(mLongClickListener);
newScreen.setOnClickListener(mLauncher);
newScreen.setSoundEffectsEnabled(false);
mWorkspaceScreens.put(screenId, newScreen);
mScreenOrder.add(insertIndex, screenId);
addView(newScreen, insertIndex);
LauncherAccessibilityDelegate delegate =
LauncherAppState.getInstance().getAccessibilityDelegate();
if (delegate != null && delegate.isInAccessibleDrag()) {
newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
return screenId;
}
public void createCustomContentContainer() {
CellLayout customScreen = (CellLayout)
mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, this, false);
customScreen.disableDragTarget();
customScreen.disableJailContent();
mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen);
mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID);
// We want no padding on the custom content
customScreen.setPadding(0, 0, 0, 0);
addFullScreenPage(customScreen);
// Update the custom content hint
if (mRestorePage != INVALID_RESTORE_PAGE) {
mRestorePage = mRestorePage + 1;
} else {
setCurrentPage(getCurrentPage() + 1);
}
}
public void removeCustomContentPage() {
CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID);
if (customScreen == null) {
throw new RuntimeException("Expected custom content screen to exist");
}
mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID);
mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID);
removeView(customScreen);
if (mCustomContentCallbacks != null) {
mCustomContentCallbacks.onScrollProgressChanged(0);
mCustomContentCallbacks.onHide();
}
mCustomContentCallbacks = null;
// Update the custom content hint
if (mRestorePage != INVALID_RESTORE_PAGE) {
mRestorePage = mRestorePage - 1;
} else {
setCurrentPage(getCurrentPage() - 1);
}
}
public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks,
String description) {
if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) {
throw new RuntimeException("Expected custom content screen to exist");
}
// Add the custom content to the full screen custom page
CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID);
int spanX = customScreen.getCountX();
int spanY = customScreen.getCountY();
CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY);
lp.canReorder = false;
lp.isFullscreen = true;
if (customContent instanceof Insettable) {
((Insettable)customContent).setInsets(mInsets);
}
// Verify that the child is removed from any existing parent.
if (customContent.getParent() instanceof ViewGroup) {
ViewGroup parent = (ViewGroup) customContent.getParent();
parent.removeView(customContent);
}
customScreen.removeAllViews();
customContent.setFocusable(true);
customContent.setOnKeyListener(new FullscreenKeyEventListener());
customContent.setOnFocusChangeListener(mLauncher.mFocusHandler
.getHideIndicatorOnFocusListener());
customScreen.addViewToCellLayout(customContent, 0, 0, lp, true);
mCustomContentDescription = description;
mCustomContentCallbacks = callbacks;
}
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);
if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return;
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 non-custom content 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
mLauncher.getModel().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();
}
}
}
};
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() {
int nScreens = getChildCount();
nScreens = nScreens - numCustomPages();
return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1;
}
public long commitExtraEmptyScreen() {
if (mLauncher.isWorkspaceLoading()) {
// Invalid and dangerous operation if workspace is loading
return -1;
}
int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID);
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 page indicator marker
if (getPageIndicator() != null) {
getPageIndicator().updateMarker(index, getPageIndicatorMarker(index));
}
// Update the model for the new screen
mLauncher.getModel().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 (isPageMoving()) {
mStripScreensOnPageStopMoving = true;
return;
}
int currentPage = getNextPage();
ArrayList<Long> removeScreens = new ArrayList<Long>();
int total = mWorkspaceScreens.size();
for (int i = 0; i < total; i++) {
long id = mWorkspaceScreens.keyAt(i);
CellLayout cl = mWorkspaceScreens.valueAt(i);
if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) {
removeScreens.add(id);
}
}
LauncherAccessibilityDelegate delegate =
LauncherAppState.getInstance().getAccessibilityDelegate();
// 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 + numCustomPages();
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 (delegate != null && delegate.isInAccessibleDrag()) {
cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
removeView(cl);
} else {
// if this is the last non-custom content 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
mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
}
if (pageShift >= 0) {
setCurrentPage(currentPage - pageShift);
}
}
// See implementation for parameter definition.
void addInScreen(View child, long container, long screenId,
int x, int y, int spanX, int spanY) {
addInScreen(child, container, screenId, x, y, spanX, spanY, false, false);
}
// At bind time, we use the rank (screenId) to compute x and y for hotseat items.
// See implementation for parameter definition.
public void addInScreenFromBind(View child, long container, long screenId, int x, int y,
int spanX, int spanY) {
addInScreen(child, container, screenId, x, y, spanX, spanY, false, true);
}
// See implementation for parameter definition.
void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY,
boolean insert) {
addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false);
}
/**
* 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.
* @param insert When true, the child is inserted at the beginning of the children list.
* @param computeXYFromRank When true, we use the rank (stored in screenId) to compute
* the x and y position in which to place hotseat items. Otherwise
* we use the x and y position to compute the rank.
*/
void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY,
boolean insert, boolean computeXYFromRank) {
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();
child.setOnKeyListener(new HotseatIconKeyEventListener());
// Hide folder title in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(false);
}
if (computeXYFromRank) {
x = mLauncher.getHotseat().getCellXFromOrder((int) screenId);
y = mLauncher.getHotseat().getCellYFromOrder((int) screenId);
} else {
screenId = mLauncher.getHotseat().getOrderInHotseat(x, y);
}
} else {
// Show folder title if not in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(true);
}
layout = getScreenWithId(screenId);
child.setOnKeyListener(new IconKeyEventListener());
}
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, insert ? 0 : -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");
}
if (!(child instanceof Folder)) {
child.setHapticFeedbackEnabled(false);
child.setOnLongClickListener(mLongClickListener);
}
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 (workspaceInModalState() || !isFinishedSwitchingState())
|| (!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 > 0.5f);
}
protected void onWindowVisibilityChanged (int visibility) {
mLauncher.onWindowVisibilityChanged(visibility);
}
@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) {
switch (ev.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
mXDown = ev.getX();
mYDown = ev.getY();
mTouchDownTime = System.currentTimeMillis();
break;
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_UP:
if (mTouchState == TOUCH_STATE_REST) {
final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
if (currentPage != null) {
onWallpaperTap(ev);
}
}
}
return super.onInterceptTouchEvent(ev);
}
@Override
public boolean onGenericMotionEvent(MotionEvent event) {
// Ignore pointer scroll events if the custom content doesn't allow scrolling.
if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID)
&& (mCustomContentCallbacks != null)
&& !mCustomContentCallbacks.isScrollingAllowed()) {
return false;
}
return super.onGenericMotionEvent(event);
}
protected void reinflateWidgetsIfNecessary() {
final int clCount = getChildCount();
for (int i = 0; i < clCount; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets();
final int itemCount = swc.getChildCount();
for (int j = 0; j < itemCount; j++) {
View v = swc.getChildAt(j);
if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) {
LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag();
LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView;
if (lahv != null && lahv.isReinflateRequired()) {
// Remove and rebind the current widget (which was inflated in the wrong
// orientation), but don't delete it from the database
mLauncher.removeItem(lahv, info, false /* deleteFromDb */);
mLauncher.bindAppWidget(info);
}
}
}
}
}
@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();
}
boolean passRightSwipesToCustomContent =
(mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY;
boolean swipeInIgnoreDirection = mIsRtl ? deltaX < 0 : deltaX > 0;
boolean onCustomContentScreen =
getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID;
if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) {
// Pass swipes to the right to the custom content page.
return;
}
if (onCustomContentScreen && (mCustomContentCallbacks != null)
&& !mCustomContentCallbacks.isScrollingAllowed()) {
// Don't allow workspace scrolling if the current custom content screen doesn't allow
// scrolling.
return;
}
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 onPageBeginMoving() {
super.onPageBeginMoving();
if (isHardwareAccelerated()) {
updateChildrenLayersEnabled(false);
} else {
if (mNextPage != INVALID_PAGE) {
// we're snapping to a particular screen
enableChildrenCache(mCurrentPage, mNextPage);
} else {
// this is when user is actively dragging a particular screen, they might
// swipe it either left or right (but we won't advance by more than one screen)
enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
}
}
}
protected void onPageEndMoving() {
super.onPageEndMoving();
if (isHardwareAccelerated()) {
updateChildrenLayersEnabled(false);
} else {
clearChildrenCache();
}
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 (mDelayedResizeRunnable != null && !mIsSwitchingState) {
mDelayedResizeRunnable.run();
mDelayedResizeRunnable = null;
}
if (mDelayedSnapToPageRunnable != null) {
mDelayedSnapToPageRunnable.run();
mDelayedSnapToPageRunnable = null;
}
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);
}
@Override
protected int getUnboundedScrollX() {
if (isScrollingOverlay()) {
return mUnboundedScrollX;
}
return super.getUnboundedScrollX();
}
private boolean isScrollingOverlay() {
return mLauncherOverlay != null &&
((mIsRtl && mUnboundedScrollX > mMaxScrollX) || (!mIsRtl && mUnboundedScrollX < 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()) {
int finalScroll = mIsRtl ? mMaxScrollX : 0;
// We reset mWasInOverscroll so that PagedView doesn't zero out the overscroll
// interaction when we call scrollTo.
mWasInOverscroll = false;
scrollTo(finalScroll, getScrollY());
} else {
super.snapToDestination();
}
}
@Override
public void scrollTo(int x, int y) {
mUnboundedScrollX = x;
super.scrollTo(x, y);
}
@Override
protected void overScroll(float amount) {
boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || mIsRtl)) ||
(amount >= 0 && (!hasCustomContent() || !mIsRtl));
boolean shouldScrollOverlay = mLauncherOverlay != null &&
((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl));
boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 &&
((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl));
if (shouldScrollOverlay) {
if (!mStartedSendingScrollEvents && mScrollInteractionBegan) {
mStartedSendingScrollEvents = true;
mLauncherOverlay.onScrollInteractionBegin();
}
mLastOverlaySroll = Math.abs(amount / getViewportWidth());
mLauncherOverlay.onScrollChange(mLastOverlaySroll, mIsRtl);
} else if (shouldOverScroll) {
dampedOverScroll(amount);
}
if (shouldZeroOverlay) {
mLauncherOverlay.onScrollChange(0, mIsRtl);
}
}
private final Interpolator mAlphaInterpolator = new DecelerateInterpolator(3f);
/**
* The overlay scroll is being controlled locally, just update our overlay effect
*/
public void onOverlayScrollChanged(float scroll) {
float offset = 0f;
float slip = 0f;
scroll = Math.max(scroll - offset, 0);
scroll = Math.min(1, scroll / (1 - offset));
float alpha = 1 - mAlphaInterpolator.getInterpolation(scroll);
float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll;
transX *= 1 - slip;
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.
setTranslationAndAlpha(mLauncher.getSearchDropTargetBar(), transX, alpha);
setTranslationAndAlpha(getPageIndicator(), transX, alpha);
setTranslationAndAlpha(getChildAt(getCurrentPage()), transX, alpha);
setTranslationAndAlpha(mLauncher.getHotseat(), transX, alpha);
// When the animation finishes, reset all pages, just in case we missed a page.
if (transX == 0) {
for (int i = getChildCount() - 1; i >= 0; i--) {
setTranslationAndAlpha(getChildAt(i), 0, alpha);
}
}
}
@Override
protected Matrix getPageShiftMatrix() {
if (Float.compare(mOverlayTranslation, 0) != 0) {
// The pages are translated by mOverlayTranslation. incorporate that in the
// visible page calculation by shifting everything back by that same amount.
mTempMatrix.set(getMatrix());
mTempMatrix.postTranslate(-mOverlayTranslation, 0);
return mTempMatrix;
}
return super.getPageShiftMatrix();
}
private void setTranslationAndAlpha(View v, float transX, float alpha) {
if (v != null) {
v.setTranslationX(transX);
v.setAlpha(alpha);
}
}
@Override
protected void getEdgeVerticalPostion(int[] pos) {
View child = getChildAt(getPageCount() - 1);
pos[0] = child.getTop();
pos[1] = child.getBottom();
}
@Override
protected void notifyPageSwitchListener() {
super.notifyPageSwitchListener();
if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) {
mCustomContentShowing = true;
if (mCustomContentCallbacks != null) {
mCustomContentCallbacks.onShow(false);
mCustomContentShowTime = System.currentTimeMillis();
}
} else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) {
mCustomContentShowing = false;
if (mCustomContentCallbacks != null) {
mCustomContentCallbacks.onHide();
}
}
}
protected CustomContentCallbacks getCustomContentCallbacks() {
return mCustomContentCallbacks;
}
protected void setWallpaperDimension() {
new AsyncTask<Void, Void, Void>() {
public Void doInBackground(Void ... args) {
if (Utilities.ATLEAST_KITKAT) {
WallpaperUtils.suggestWallpaperDimension(mLauncher);
} else {
WallpaperUtils.suggestWallpaperDimensionPreK(mLauncher,
mLauncher.overrideWallpaperDimensions());
}
return null;
}
}.executeOnExecutor(Utilities.THREAD_POOL_EXECUTOR);
}
protected void snapToPage(int whichPage, Runnable r) {
snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r);
}
protected void snapToPage(int whichPage, int duration, Runnable r) {
if (mDelayedSnapToPageRunnable != null) {
mDelayedSnapToPageRunnable.run();
}
mDelayedSnapToPageRunnable = r;
snapToPage(whichPage, duration);
}
public void snapToScreenId(long screenId) {
snapToScreenId(screenId, null);
}
protected void snapToScreenId(long screenId, Runnable r) {
snapToPage(getPageIndexForScreenId(screenId), r);
}
@Override
public void computeScroll() {
super.computeScroll();
mWallpaperOffset.syncWithScroll();
}
@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.isAppsViewVisible()) {
super.announceForAccessibility(text);
}
}
public void showOutlinesTemporarily() {
if (!mIsPageMoving && !isTouchActive()) {
snapToPage(mCurrentPage);
}
}
private void updatePageAlphaValues(int screenCenter) {
if (mWorkspaceFadeInAdjacentScreens &&
!workspaceInModalState() &&
!mIsSwitchingState) {
for (int i = numCustomPages(); i < getChildCount(); i++) {
CellLayout child = (CellLayout) getChildAt(i);
if (child != null) {
float scrollProgress = getScrollProgress(screenCenter, child, i);
float alpha = 1 - Math.abs(scrollProgress);
child.getShortcutsAndWidgets().setAlpha(alpha);
}
}
}
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public void enableAccessibleDrag(boolean enable) {
for (int i = 0; i < getChildCount(); i++) {
CellLayout child = (CellLayout) getChildAt(i);
child.enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
if (enable) {
// We need to allow our individual children to become click handlers in this case
setOnClickListener(null);
} else {
// Reset our click listener
setOnClickListener(mLauncher);
}
mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable);
mLauncher.getAppInfoDropTargetBar().enableAccessibleDrag(enable);
mLauncher.getHotseat().getLayout()
.enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
}
public boolean hasCustomContent() {
return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID);
}
public int numCustomPages() {
return hasCustomContent() ? 1 : 0;
}
public boolean isOnOrMovingToCustomContent() {
return hasCustomContent() && getNextPage() == 0 && mRestorePage == INVALID_RESTORE_PAGE;
}
private void updateStateForCustomContent(int screenCenter) {
float translationX = 0;
float progress = 0;
if (hasCustomContent()) {
int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID);
int scrollDelta = getScrollX() - getScrollForPage(index) -
getLayoutTransitionOffsetForPage(index);
float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index);
translationX = scrollRange - scrollDelta;
progress = (scrollRange - scrollDelta) / scrollRange;
if (mIsRtl) {
translationX = Math.min(0, translationX);
} else {
translationX = Math.max(0, translationX);
}
progress = Math.max(0, progress);
}
if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return;
CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID);
if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) {
cc.setVisibility(VISIBLE);
}
mLastCustomContentScrollProgress = progress;
// We should only update the drag layer background alpha if we are not in all apps or the
// widgets tray
if (mState == State.NORMAL) {
mLauncher.getDragLayer().setBackgroundAlpha(progress == 1 ? 0 : progress * 0.8f);
}
if (mLauncher.getHotseat() != null) {
mLauncher.getHotseat().setTranslationX(translationX);
}
if (getPageIndicator() != null) {
getPageIndicator().setTranslationX(translationX);
}
if (mCustomContentCallbacks != null) {
mCustomContentCallbacks.onScrollProgressChanged(progress);
}
}
@Override
protected OnClickListener getPageIndicatorClickListener() {
AccessibilityManager am = (AccessibilityManager)
getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
if (!am.isTouchExplorationEnabled()) {
return null;
}
return new OnClickListener() {
@Override
public void onClick(View arg0) {
mLauncher.showOverviewMode(true);
}
};
}
@Override
protected void screenScrolled(int screenCenter) {
updatePageAlphaValues(screenCenter);
updateStateForCustomContent(screenCenter);
enableHwLayersOnVisiblePages();
}
protected void onAttachedToWindow() {
super.onAttachedToWindow();
IBinder windowToken = getWindowToken();
mWallpaperOffset.setWindowToken(windowToken);
computeScroll();
mDragController.setWindowToken(windowToken);
}
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mWallpaperOffset.setWindowToken(null);
}
protected void onResume() {
if (getPageIndicator() != null) {
// In case accessibility state has changed, we need to perform this on every
// attach to window
OnClickListener listener = getPageIndicatorClickListener();
if (listener != null) {
getPageIndicator().setOnClickListener(listener);
}
}
// Update wallpaper dimensions if they were changed since last onResume
// (we also always set the wallpaper dimensions in the constructor)
if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) {
setWallpaperDimension();
}
mWallpaperOffset.onResume();
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
mWallpaperOffset.syncWithScroll();
mWallpaperOffset.jumpToFinal();
}
super.onLayout(changed, left, top, right, bottom);
}
@Override
protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
if (!mLauncher.isAppsViewVisible()) {
final Folder openFolder = getOpenFolder();
if (openFolder != null) {
return openFolder.requestFocus(direction, previouslyFocusedRect);
} else {
return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
}
}
return false;
}
@Override
public int getDescendantFocusability() {
if (workspaceInModalState()) {
return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
}
return super.getDescendantFocusability();
}
@Override
public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
if (!mLauncher.isAppsViewVisible()) {
final Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.addFocusables(views, direction);
} else {
super.addFocusables(views, direction, focusableMode);
}
}
}
public boolean workspaceInModalState() {
return mState != State.NORMAL;
}
void enableChildrenCache(int fromPage, int toPage) {
if (fromPage > toPage) {
final int temp = fromPage;
fromPage = toPage;
toPage = temp;
}
final int screenCount = getChildCount();
fromPage = Math.max(fromPage, 0);
toPage = Math.min(toPage, screenCount - 1);
for (int i = fromPage; i <= toPage; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
layout.setChildrenDrawnWithCacheEnabled(true);
layout.setChildrenDrawingCacheEnabled(true);
}
}
void clearChildrenCache() {
final int screenCount = getChildCount();
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
layout.setChildrenDrawnWithCacheEnabled(false);
// In software mode, we don't want the items to continue to be drawn into bitmaps
if (!isHardwareAccelerated()) {
layout.setChildrenDrawingCacheEnabled(false);
}
}
}
@Thunk void updateChildrenLayersEnabled(boolean force) {
boolean small = mState == State.OVERVIEW || mIsSwitchingState;
boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving();
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();
getVisiblePages(mTempVisiblePagesRange);
int leftScreen = mTempVisiblePagesRange[0];
int rightScreen = mTempVisiblePagesRange[1];
if (leftScreen == rightScreen) {
// make sure we're caching at least two pages always
if (rightScreen < screenCount - 1) {
rightScreen++;
} else if (leftScreen > 0) {
leftScreen--;
}
}
final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID);
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getPageAt(i);
// enable layers between left and right screen inclusive, except for the
// customScreen, which may animate its content during transitions.
boolean enableLayer = layout != customScreen &&
leftScreen <= i && i <= rightScreen && shouldDrawChild(layout);
layout.enableHardwareLayer(enableLayer);
}
}
}
public void buildPageHardwareLayers() {
// force layers to be enabled just for the call to buildLayer
updateChildrenLayersEnabled(true);
if (getWindowToken() != null) {
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
cl.buildHardwareLayer();
}
}
updateChildrenLayersEnabled(false);
}
@Override
protected void getVisiblePages(int[] range) {
super.getVisiblePages(range);
if (mForceDrawAdjacentPages) {
// In overview mode, make sure that the two side pages are visible.
range[0] = Utilities.boundInRange(getCurrentPage() - 1, numCustomPages(), range[1]);
range[1] = Utilities.boundInRange(getCurrentPage() + 1, range[0], getPageCount() - 1);
}
}
protected 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);
}
/*
*
* We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we
* start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
*
* These methods mark the appropriate pages as accepting drops (which alters their visual
* appearance).
*
*/
private static Rect getDrawableBounds(Drawable d) {
Rect bounds = new Rect();
d.copyBounds(bounds);
if (bounds.width() == 0 || bounds.height() == 0) {
bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
} else {
bounds.offsetTo(0, 0);
}
if (d instanceof PreloadIconDrawable) {
int inset = -((PreloadIconDrawable) d).getOutset();
bounds.inset(inset, inset);
}
return bounds;
}
public void onExternalDragStartedWithItem(View v) {
// Compose a drag bitmap with the view scaled to the icon size
DeviceProfile grid = mLauncher.getDeviceProfile();
int iconSize = grid.iconSizePx;
int bmpWidth = v.getMeasuredWidth();
int bmpHeight = v.getMeasuredHeight();
// If this is a text view, use its drawable instead
if (v instanceof TextView) {
Drawable d = getTextViewIcon((TextView) v);
Rect bounds = getDrawableBounds(d);
bmpWidth = bounds.width();
bmpHeight = bounds.height();
}
// Compose the bitmap to create the icon from
Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight,
Bitmap.Config.ARGB_8888);
mCanvas.setBitmap(b);
drawDragView(v, mCanvas, 0);
mCanvas.setBitmap(null);
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true);
}
public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) {
// Find a page that has enough space to place this widget (after rearranging/resizing).
// 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 currentPageInOverview = getPageNearestToCenterOfScreen();
for (int pageIndex = currentPageInOverview; pageIndex < getPageCount(); pageIndex++) {
CellLayout page = (CellLayout) getPageAt(pageIndex);
if (page.hasReorderSolution(info)) {
setCurrentPage(pageIndex);
break;
}
}
int[] size = estimateItemSize(info, false);
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha);
}
public void exitWidgetResizeMode() {
DragLayer dragLayer = mLauncher.getDragLayer();
dragLayer.clearAllResizeFrames();
}
@Override
protected void getFreeScrollPageRange(int[] range) {
getOverviewModePages(range);
}
private void getOverviewModePages(int[] range) {
int start = numCustomPages();
int end = getChildCount() - 1;
range[0] = Math.max(0, Math.min(start, getChildCount() - 1));
range[1] = Math.max(0, end);
}
public void onStartReordering() {
super.onStartReordering();
// Reordering handles its own animations, disable the automatic ones.
disableLayoutTransitions();
}
public void onEndReordering() {
super.onEndReordering();
if (mLauncher.isWorkspaceLoading()) {
// Invalid and dangerous operation if workspace is loading
return;
}
mScreenOrder.clear();
int count = getChildCount();
for (int i = 0; i < count; i++) {
CellLayout cl = ((CellLayout) getChildAt(i));
mScreenOrder.add(getIdForScreen(cl));
}
mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
// Re-enable auto layout transitions for page deletion.
enableLayoutTransitions();
}
public boolean isInOverviewMode() {
return mState == State.OVERVIEW;
}
public void snapToPageFromOverView(int whichPage) {
mStateTransitionAnimation.snapToPageFromOverView(whichPage);
}
int getOverviewModeTranslationY() {
DeviceProfile grid = mLauncher.getDeviceProfile();
Rect workspacePadding = grid.getWorkspacePadding(Utilities.isRtl(getResources()));
int overviewButtonBarHeight = grid.getOverviewModeButtonBarHeight();
int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight());
int workspaceTop = mInsets.top + workspacePadding.top;
int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom;
int overviewTop = mInsets.top;
int overviewBottom = getViewportHeight() - mInsets.bottom - overviewButtonBarHeight;
int workspaceOffsetTopEdge = workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2;
int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2;
return -workspaceOffsetTopEdge + overviewOffsetTopEdge;
}
int getSpringLoadedTranslationY() {
DeviceProfile grid = mLauncher.getDeviceProfile();
Rect workspacePadding = grid.getWorkspacePadding(Utilities.isRtl(getResources()));
int scaledHeight = (int) (mSpringLoadedShrinkFactor * getNormalChildHeight());
int workspaceTop = mInsets.top + workspacePadding.top;
int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom;
int workspaceHeight = workspaceBottom - workspaceTop;
// Center the spring-loaded pages by translating it up by half of the reduced height.
return -(workspaceHeight - scaledHeight) / 2;
}
float getOverviewModeShrinkFactor() {
return mOverviewModeShrinkFactor;
}
/**
* Sets the current workspace {@link State}, returning an animation transitioning the workspace
* to that new state.
*/
public Animator setStateWithAnimation(State toState, boolean animated,
HashMap<View, Integer> layerViews) {
// Create the animation to the new state
Animator workspaceAnim = mStateTransitionAnimation.getAnimationToState(mState,
toState, animated, layerViews);
boolean shouldNotifyWidgetChange = !mState.shouldUpdateWidget
&& toState.shouldUpdateWidget;
// Update the current state
mState = toState;
updateAccessibilityFlags();
if (mState == State.OVERVIEW || mState == State.SPRING_LOADED) {
// Redraw pages, as we might want to draw pages which were not visible.
mForceDrawAdjacentPages = true;
invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
}
if (shouldNotifyWidgetChange) {
mLauncher.notifyWidgetProvidersChanged();
}
return workspaceAnim;
}
State getState() {
return mState;
}
public void updateAccessibilityFlags() {
if (Utilities.ATLEAST_LOLLIPOP) {
int total = getPageCount();
for (int i = numCustomPages(); i < total; i++) {
updateAccessibilityFlags((CellLayout) getPageAt(i), i);
}
setImportantForAccessibility((mState == State.NORMAL || mState == State.OVERVIEW)
? IMPORTANT_FOR_ACCESSIBILITY_AUTO
: IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
} else {
int accessible = mState == State.NORMAL ?
IMPORTANT_FOR_ACCESSIBILITY_AUTO :
IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS;
setImportantForAccessibility(accessible);
}
}
private void updateAccessibilityFlags(CellLayout page, int pageNo) {
if (mState == State.OVERVIEW) {
page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
page.getShortcutsAndWidgets().setImportantForAccessibility(
IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
page.setContentDescription(getPageDescription(pageNo));
if (mPagesAccessibilityDelegate == null) {
mPagesAccessibilityDelegate = new OverviewScreenAccessibilityDelegate(this);
}
page.setAccessibilityDelegate(mPagesAccessibilityDelegate);
} else {
int accessible = mState == State.NORMAL ?
IMPORTANT_FOR_ACCESSIBILITY_AUTO :
IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS;
page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
page.getShortcutsAndWidgets().setImportantForAccessibility(accessible);
page.setContentDescription(null);
page.setAccessibilityDelegate(null);
}
}
@Override
public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) {
mIsSwitchingState = true;
mTransitionProgress = 0;
// Invalidate here to ensure that the pages are rendered during the state change transition.
invalidate();
updateChildrenLayersEnabled(false);
hideCustomContentIfNecessary();
}
@Override
public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) {
}
@Override
public void onLauncherTransitionStep(Launcher l, float t) {
mTransitionProgress = t;
}
@Override
public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) {
mIsSwitchingState = false;
updateChildrenLayersEnabled(false);
showCustomContentIfNecessary();
mForceDrawAdjacentPages = false;
}
void updateCustomContentVisibility() {
int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE;
setCustomContentVisibility(visibility);
}
void setCustomContentVisibility(int visibility) {
if (hasCustomContent()) {
mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility);
}
}
void showCustomContentIfNecessary() {
boolean show = mState == Workspace.State.NORMAL;
if (show && hasCustomContent()) {
mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE);
}
}
void hideCustomContentIfNecessary() {
boolean hide = mState != Workspace.State.NORMAL;
if (hide && hasCustomContent()) {
disableLayoutTransitions();
mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE);
enableLayoutTransitions();
}
}
/**
* Returns the drawable for the given text view.
*/
public static Drawable getTextViewIcon(TextView tv) {
final Drawable[] drawables = tv.getCompoundDrawables();
for (int i = 0; i < drawables.length; i++) {
if (drawables[i] != null) {
return drawables[i];
}
}
return null;
}
/**
* Draw the View v into the given Canvas.
*
* @param v the view to draw
* @param destCanvas the canvas to draw on
* @param padding the horizontal and vertical padding to use when drawing
*/
private static void drawDragView(View v, Canvas destCanvas, int padding) {
destCanvas.save();
if (v instanceof TextView) {
Drawable d = getTextViewIcon((TextView) v);
Rect bounds = getDrawableBounds(d);
destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top);
d.draw(destCanvas);
} else {
final Rect clipRect = sTempRect;
v.getDrawingRect(clipRect);
boolean textVisible = false;
if (v instanceof FolderIcon) {
// For FolderIcons the text can bleed into the icon area, and so we need to
// hide the text completely (which can't be achieved by clipping).
if (((FolderIcon) v).getTextVisible()) {
((FolderIcon) v).setTextVisible(false);
textVisible = true;
}
}
destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
destCanvas.clipRect(clipRect, Op.REPLACE);
v.draw(destCanvas);
// Restore text visibility of FolderIcon if necessary
if (textVisible) {
((FolderIcon) v).setTextVisible(true);
}
}
destCanvas.restore();
}
/**
* Returns a new bitmap to show when the given View is being dragged around.
* Responsibility for the bitmap is transferred to the caller.
* @param expectedPadding padding to add to the drag view. If a different padding was used
* its value will be changed
*/
public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) {
Bitmap b;
int padding = expectedPadding.get();
if (v instanceof TextView) {
Drawable d = getTextViewIcon((TextView) v);
Rect bounds = getDrawableBounds(d);
b = Bitmap.createBitmap(bounds.width() + padding,
bounds.height() + padding, Bitmap.Config.ARGB_8888);
expectedPadding.set(padding - bounds.left - bounds.top);
} else {
b = Bitmap.createBitmap(
v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
}
mCanvas.setBitmap(b);
drawDragView(v, mCanvas, padding);
mCanvas.setBitmap(null);
return b;
}
/**
* Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
* Responsibility for the bitmap is transferred to the caller.
*/
private Bitmap createDragOutline(View v, int padding) {
final int outlineColor = getResources().getColor(R.color.outline_color);
final Bitmap b = Bitmap.createBitmap(
v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
mCanvas.setBitmap(b);
drawDragView(v, mCanvas, padding);
mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor);
mCanvas.setBitmap(null);
return b;
}
/**
* Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
* Responsibility for the bitmap is transferred to the caller.
*/
private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h,
boolean clipAlpha) {
final int outlineColor = getResources().getColor(R.color.outline_color);
final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
mCanvas.setBitmap(b);
Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
(h - padding) / (float) orig.getHeight());
int scaledWidth = (int) (scaleFactor * orig.getWidth());
int scaledHeight = (int) (scaleFactor * orig.getHeight());
Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
// center the image
dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
mCanvas.drawBitmap(orig, src, dst, null);
mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor,
clipAlpha);
mCanvas.setBitmap(null);
return b;
}
public void startDrag(CellLayout.CellInfo cellInfo) {
startDrag(cellInfo, false);
}
@Override
public void startDrag(CellLayout.CellInfo cellInfo, boolean accessible) {
View child = cellInfo.cell;
// Make sure the drag was started by a long press as opposed to a long click.
if (!child.isInTouchMode()) {
return;
}
mDragInfo = cellInfo;
child.setVisibility(INVISIBLE);
CellLayout layout = (CellLayout) child.getParent().getParent();
layout.prepareChildForDrag(child);
beginDragShared(child, this, accessible);
}
public void beginDragShared(View child, DragSource source, boolean accessible) {
beginDragShared(child, new Point(), source, accessible);
}
public void beginDragShared(View child, Point relativeTouchPos, DragSource source,
boolean accessible) {
child.clearFocus();
child.setPressed(false);
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING);
mLauncher.onDragStarted(child);
// The drag bitmap follows the touch point around on the screen
AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING);
final Bitmap b = createDragBitmap(child, padding);
final int bmpWidth = b.getWidth();
final int bmpHeight = b.getHeight();
float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY);
int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2);
int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2
- padding.get() / 2);
DeviceProfile grid = mLauncher.getDeviceProfile();
Point dragVisualizeOffset = null;
Rect dragRect = null;
if (child instanceof BubbleTextView) {
BubbleTextView icon = (BubbleTextView) child;
int iconSize = grid.iconSizePx;
int top = child.getPaddingTop();
int left = (bmpWidth - iconSize) / 2;
int right = left + iconSize;
int bottom = top + iconSize;
if (icon.isLayoutHorizontal()) {
// If the layout is horizontal, then if we are just picking up the icon, then just
// use the child position since the icon is top-left aligned. Otherwise, offset
// the drag layer position horizontally so that the icon is under the current
// touch position.
if (icon.getIcon().getBounds().contains(relativeTouchPos.x, relativeTouchPos.y)) {
dragLayerX = Math.round(mTempXY[0]);
} else {
dragLayerX = Math.round(mTempXY[0] + relativeTouchPos.x - (bmpWidth / 2));
}
}
dragLayerY += top;
// Note: The drag region is used to calculate drag layer offsets, but the
// dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2);
dragRect = new Rect(left, top, right, bottom);
} else if (child instanceof FolderIcon) {
int previewSize = grid.folderIconSizePx;
dragVisualizeOffset = new Point(-padding.get() / 2,
padding.get() / 2 - child.getPaddingTop());
dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize);
}
// Clear the pressed state if necessary
if (child instanceof BubbleTextView) {
BubbleTextView icon = (BubbleTextView) child;
icon.clearPressedBackground();
}
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);
}
if (child.getParent() instanceof ShortcutAndWidgetContainer) {
mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent();
}
DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source,
(ItemInfo) dragObject, DragController.DRAG_ACTION_MOVE, dragVisualizeOffset,
dragRect, scale, accessible);
dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor());
b.recycle();
if (!FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND) {
mLauncher.enterSpringLoadedDragMode();
}
}
public void beginExternalDragShared(View child, DragSource source) {
DeviceProfile grid = mLauncher.getDeviceProfile();
int iconSize = grid.iconSizePx;
// Notify launcher of drag start
mLauncher.onDragStarted(child);
// Compose a new drag bitmap that is of the icon size
AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING);
final Bitmap tmpB = createDragBitmap(child, padding);
Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888);
Paint p = new Paint();
p.setFilterBitmap(true);
mCanvas.setBitmap(b);
mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()),
new Rect(0, 0, iconSize, iconSize), p);
mCanvas.setBitmap(null);
// Find the child's location on the screen
int bmpWidth = tmpB.getWidth();
float iconScale = (float) bmpWidth / iconSize;
float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale;
int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2);
int dragLayerY = Math.round(mTempXY[1]);
// Note: The drag region is used to calculate drag layer offsets, but the
// dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2);
Rect dragRect = new Rect(0, 0, iconSize, iconSize);
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);
}
// Start the drag
DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source,
(ItemInfo) dragObject, DragController.DRAG_ACTION_MOVE, dragVisualizeOffset,
dragRect, scale, false);
dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor());
// Recycle temporary bitmaps
tmpB.recycle();
if (!FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND) {
mLauncher.enterSpringLoadedDragMode();
}
}
public boolean transitionStateShouldAllowDrop() {
return ((!isSwitchingState() || mTransitionProgress > 0.5f) &&
(mState == State.NORMAL || mState == State.SPRING_LOADED));
}
/**
* {@inheritDoc}
*/
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 = 1;
int spanY = 1;
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) {
// Don't show the message if we are dropping on the AllApps button and the hotseat
// is full
boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
if (mTargetCell != null && isHotseat) {
Hotseat hotseat = mLauncher.getHotseat();
if (hotseat.isAllAppsButtonRank(
hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) {
return false;
}
}
mLauncher.showOutOfSpaceMessage(isHotseat);
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);
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,
Runnable postAnimationRunnable) {
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 FolderIcon.PreviewBackground();
fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale,
postAnimationRunnable);
} else {
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);
// 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) {
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);
}
}
int snapScreen = -1;
boolean resizeOnDrop = false;
if (d.dragSource != this) {
final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1] };
onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d);
} else if (mDragInfo != null) {
final View cell = mDragInfo.cell;
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 (!mInScrollArea && createUserFolderIfNecessary(cell, container,
dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) {
return;
}
if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
distance, d, false)) {
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;
}
int[] resultSpan = new int[2];
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 (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) {
snapScreen = getPageIndexForScreenId(screenId);
snapToPage(snapScreen);
}
if (foundCell) {
final ItemInfo info = (ItemInfo) cell.getTag();
if (hasMovedLayouts) {
// Reparent the view
CellLayout parentCell = getParentCellLayoutForView(cell);
if (parentCell != null) {
parentCell.removeView(cell);
} else if (ProviderConfig.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) {
mDelayedResizeRunnable = new Runnable() {
public void run() {
if (!isPageMoving() && !mIsSwitchingState) {
DragLayer dragLayer = mLauncher.getDragLayer();
dragLayer.addResizeFrame(info, hostView, cellLayout);
}
}
};
}
}
LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX,
lp.cellY, item.spanX, item.spanY);
} else {
// 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();
// Prepare it to be animated into its new position
// This must be called after the view has been re-parented
final Runnable onCompleteRunnable = new Runnable() {
@Override
public void run() {
mAnimatingViewIntoPlace = false;
updateChildrenLayersEnabled(false);
}
};
mAnimatingViewIntoPlace = true;
if (d.dragView.hasDrawn()) {
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,
onCompleteRunnable, animationType, cell, false);
} else {
int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
onCompleteRunnable, this);
}
} else {
d.deferDragViewCleanupPostAnimation = false;
cell.setVisibility(VISIBLE);
}
parent.onDropChild(cell);
}
}
/**
* 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] = getViewportOffsetX() + 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) {
enfoceDragParity("onDragEnter", 1, 1);
}
mCreateUserFolderOnDrop = false;
mAddToExistingFolderOnDrop = false;
mDropToLayout = null;
CellLayout layout = getCurrentDropLayout();
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
if (!workspaceInModalState() && FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND) {
mLauncher.getDragLayer().showPageHints();
}
}
@Override
public void onDragExit(DragObject d) {
if (ENFORCE_DRAG_EVENT_ORDER) {
enfoceDragParity("onDragExit", -1, 0);
}
// Here we store the final page that will be dropped to, if the workspace in fact
// receives the drop
if (mInScrollArea) {
if (isPageMoving()) {
// If the user drops while the page is scrolling, we should use that page as the
// destination instead of the page that is being hovered over.
mDropToLayout = (CellLayout) getPageAt(getNextPage());
} else {
mDropToLayout = mDragOverlappingLayout;
}
} else {
mDropToLayout = mDragTargetLayout;
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER) {
mCreateUserFolderOnDrop = true;
} else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) {
mAddToExistingFolderOnDrop = true;
}
// Reset the scroll area and previous drag target
onResetScrollArea();
setCurrentDropLayout(null);
setCurrentDragOverlappingLayout(null);
mSpringLoadedDragController.cancel();
mLauncher.getDragLayer().hidePageHints();
}
private void enfoceDragParity(String event, int update, int expectedValue) {
enfoceDragParity(this, event, update, expectedValue);
for (int i = 0; i < getChildCount(); i++) {
enfoceDragParity(getChildAt(i), event, update, expectedValue);
}
}
private void enfoceDragParity(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);
}
invalidate();
}
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() {
mFolderCreateBg.animateToRest();
mFolderCreationAlarm.setOnAlarmListener(null);
mFolderCreationAlarm.cancelAlarm();
}
private void cleanupAddToFolder() {
if (mDragOverFolderIcon != null) {
mDragOverFolderIcon.onDragExit(null);
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);
return mLauncher.getDeviceProfile().isInHotseatRect(mTempXY[0], mTempXY[1]);
}
void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) {
mTempXY[0] = (int) xy[0];
mTempXY[1] = (int) xy[1];
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true);
mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempXY);
xy[0] = mTempXY[0];
xy[1] = mTempXY[1];
}
/*
*
* Convert the 2D coordinate xy from this CellLayout's coordinate space to
* the parent View's coordinate space. The argument xy is modified with the return result.
*
*/
void mapPointFromChildToSelf(View v, float[] xy) {
xy[0] += v.getLeft();
xy[1] += v.getTop();
}
static private float squaredDistance(float[] point1, float[] point2) {
float distanceX = point1[0] - point2[0];
float distanceY = point2[1] - point2[1];
return distanceX * distanceX + distanceY * distanceY;
}
/*
*
* This method returns the CellLayout that is currently being dragged to. In order to drag
* to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
* strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
*
* Return null if no CellLayout is currently being dragged over
*
*/
private CellLayout findMatchingPageForDragOver(
DragView dragView, float originX, float originY, boolean exact) {
// We loop through all the screens (ie CellLayouts) and see which ones overlap
// with the item being dragged and then choose the one that's closest to the touch point
final int screenCount = getChildCount();
CellLayout bestMatchingScreen = null;
float smallestDistSoFar = Float.MAX_VALUE;
for (int i = 0; i < screenCount; i++) {
// The custom content screen is not a valid drag over option
if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) {
continue;
}
CellLayout cl = (CellLayout) getChildAt(i);
final float[] touchXy = {originX, originY};
mapPointFromSelfToChild(cl, touchXy);
if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
return cl;
}
if (!exact) {
// Get the center of the cell layout in screen coordinates
final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
cellLayoutCenter[0] = cl.getWidth()/2;
cellLayoutCenter[1] = cl.getHeight()/2;
mapPointFromChildToSelf(cl, cellLayoutCenter);
touchXy[0] = originX;
touchXy[1] = originY;
// Calculate the distance between the center of the CellLayout
// and the touch point
float dist = squaredDistance(touchXy, cellLayoutCenter);
if (dist < smallestDistSoFar) {
smallestDistSoFar = dist;
bestMatchingScreen = cl;
}
}
}
return bestMatchingScreen;
}
private boolean isDragWidget(DragObject d) {
return (d.dragInfo instanceof LauncherAppWidgetInfo ||
d.dragInfo instanceof PendingAddWidgetInfo);
}
private boolean isExternalDragWidget(DragObject d) {
return d.dragSource != this && isDragWidget(d);
}
public void onDragOver(DragObject d) {
// Skip drag over events while we are dragging over side pages
if (mInScrollArea || !transitionStateShouldAllowDrop()) return;
CellLayout layout = null;
ItemInfo item = d.dragInfo;
if (item == null) {
if (ProviderConfig.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;
// Identify whether we have dragged over a side page
if (workspaceInModalState()) {
if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) {
if (isPointInSelfOverHotseat(d.x, d.y)) {
layout = mLauncher.getHotseat().getLayout();
}
}
if (layout == null) {
layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false);
}
if (layout != mDragTargetLayout) {
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED);
if (isInSpringLoadedMode) {
if (mLauncher.isHotseatLayout(layout)) {
mSpringLoadedDragController.cancel();
} else {
mSpringLoadedDragController.setAlarm(mDragTargetLayout);
}
}
}
} else {
// Test to see if we are over the hotseat otherwise just use the current page
if (mLauncher.getHotseat() != null && !isDragWidget(d)) {
if (isPointInSelfOverHotseat(d.x, d.y)) {
layout = mLauncher.getHotseat().getLayout();
}
}
if (layout == null) {
layout = getCurrentDropLayout();
}
if (layout != mDragTargetLayout) {
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
}
}
// 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, mDragOutline,
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();
}
}
}
}
private void manageFolderFeedback(CellLayout targetLayout,
int[] targetCell, float distance, DragObject dragObject) {
if (distance > mMaxDistanceForFolderCreation) 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 {
CellLayout layout;
int cellX;
int cellY;
public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
this.layout = layout;
this.cellX = cellX;
this.cellY = cellY;
DeviceProfile grid = mLauncher.getDeviceProfile();
BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY);
mFolderCreateBg.setup(getResources().getDisplayMetrics(), grid, null,
cell.getMeasuredWidth(), cell.getPaddingTop());
}
public void onAlarm(Alarm alarm) {
mFolderCreateBg.animateToAccept(layout, cellX, cellY);
layout.clearDragOutlines();
setDragMode(DRAG_MODE_CREATE_FOLDER);
}
}
class ReorderAlarmListener implements OnAlarmListener {
float[] dragViewCenter;
int minSpanX, minSpanY, spanX, spanY;
DragObject dragObject;
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, mDragOutline,
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 ItemInfo dragInfo,
final CellLayout cellLayout, boolean insertAtFirst, DragObject d) {
final Runnable exitSpringLoadedRunnable = new Runnable() {
@Override
public void run() {
mLauncher.exitSpringLoadedDragModeDelayed(true,
Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null);
}
};
ItemInfo info = 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)
&& mState != State.SPRING_LOADED) {
snapToScreenId(screenId, null);
}
if (info instanceof PendingAddItemInfo) {
final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo;
boolean findNearestVacantCell = true;
if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
mTargetCell = findNearestArea((int) touchXY[0], (int) 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).info.configure != null) {
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
View view = null;
switch (info.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
if (info.container == NO_ID && info instanceof AppInfo) {
// Came from all apps -- make a copy
info = ((AppInfo) info).makeShortcut();
}
view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info);
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
(FolderInfo) info, mIconCache);
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((int) touchXY[0], (int) touchXY[1], spanX, spanY,
cellLayout, mTargetCell);
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
d.postAnimationRunnable = exitSpringLoadedRunnable;
if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance,
true, d.dragView, d.postAnimationRunnable)) {
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.
LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId,
mTargetCell[0], mTargetCell[1]);
addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX,
info.spanY, insertAtFirst);
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(cellLayout);
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view,
exitSpringLoadedRunnable, this);
resetTransitionTransform(cellLayout);
}
}
}
public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) {
int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false);
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);
mCanvas.setBitmap(b);
layout.measure(width, height);
layout.layout(0, 0, unScaledSize[0], unScaledSize[1]);
layout.draw(mCanvas);
mCanvas.setBitmap(null);
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);
loc[0] = r.left;
loc[1] = r.top;
setFinalTransitionTransform(layout);
float cellLayoutScale =
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true);
resetTransitionTransform(layout);
float dragViewScaleX;
float dragViewScaleY;
if (scale) {
dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth();
dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight();
} else {
dragViewScaleX = 1f;
dragViewScaleY = 1f;
}
// 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;
}
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(CellLayout layout) {
if (isSwitchingState()) {
mCurrentScale = getScaleX();
setScaleX(mStateTransitionAnimation.getFinalScale());
setScaleY(mStateTransitionAnimation.getFinalScale());
}
}
public void resetTransitionTransform(CellLayout layout) {
if (isSwitchingState()) {
setScaleX(mCurrentScale);
setScaleY(mCurrentScale);
}
}
public WorkspaceStateTransitionAnimation getStateTransitionAnimation() {
return mStateTransitionAnimation;
}
/**
* Return the current {@link CellLayout}, correctly picking the destination
* screen while a scroll is in progress.
*/
public CellLayout getCurrentDropLayout() {
return (CellLayout) getChildAt(getNextPage());
}
/**
* 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;
}
public int getCurrentPageOffsetFromCustomContent() {
return getNextPage() - numCustomPages();
}
/**
* 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(false);
}
/**
* Called at the end of a drag which originated on the workspace.
*/
public void onDropCompleted(final View target, final DragObject d,
final boolean isFlingToDelete, final boolean success) {
if (mDeferDropAfterUninstall) {
mDeferredAction = new Runnable() {
public void run() {
onDropCompleted(target, d, isFlingToDelete, success);
mDeferredAction = null;
}
};
return;
}
boolean beingCalledAfterUninstall = mDeferredAction != null;
if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) {
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 (ProviderConfig.IS_DOGFOOD_BUILD) {
throw new RuntimeException("Invalid state: cellLayout == null in "
+ "Workspace#onDropCompleted. Please file a bug. ");
};
}
if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful))
&& mDragInfo.cell != null) {
mDragInfo.cell.setVisibility(VISIBLE);
}
mDragOutline = null;
mDragInfo = null;
if (!isFlingToDelete) {
// Fling to delete already exits spring loaded mode after the animation finishes.
mLauncher.exitSpringLoadedDragModeDelayed(success,
Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, mDelayedResizeRunnable);
mDelayedResizeRunnable = null;
}
}
/**
* For opposite operation. See {@link #addInScreen}.
*/
public void removeWorkspaceItem(View v) {
CellLayout parentCell = getParentCellLayoutForView(v);
if (parentCell != null) {
parentCell.removeView(v);
} else if (ProviderConfig.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);
}
}
@Override
public void deferCompleteDropAfterUninstallActivity() {
mDeferDropAfterUninstall = true;
}
/// maybe move this into a smaller part
@Override
public void onUninstallActivityReturned(boolean success) {
mDeferDropAfterUninstall = false;
mUninstallSuccessful = success;
if (mDeferredAction != null) {
mDeferredAction.run();
}
}
@Override
public float getIntrinsicIconScaleFactor() {
return 1f;
}
@Override
public boolean supportsFlingToDelete() {
return true;
}
@Override
public boolean supportsAppInfoDropTarget() {
return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND;
}
@Override
public boolean supportsDeleteDropTarget() {
return true;
}
@Override
public void onFlingToDelete(DragObject d, PointF vec) {
// Do nothing
}
@Override
public void onFlingToDeleteCompleted() {
// Do nothing
}
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 void scrollLeft() {
if (!workspaceInModalState() && !mIsSwitchingState) {
super.scrollLeft();
}
Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.completeDragExit();
}
}
@Override
public void scrollRight() {
if (!workspaceInModalState() && !mIsSwitchingState) {
super.scrollRight();
}
Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.completeDragExit();
}
}
@Override
public boolean onEnterScrollArea(int x, int y, int direction) {
// Ignore the scroll area if we are dragging over the hot seat
boolean isPortrait = !mLauncher.getDeviceProfile().isLandscape;
if (mLauncher.getHotseat() != null && isPortrait) {
Rect r = new Rect();
mLauncher.getHotseat().getHitRect(r);
if (r.contains(x, y)) {
return false;
}
}
boolean result = false;
if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) {
mInScrollArea = true;
final int page = getNextPage() +
(direction == DragController.SCROLL_LEFT ? -1 : 1);
// We always want to exit the current layout to ensure parity of enter / exit
setCurrentDropLayout(null);
if (0 <= page && page < getChildCount()) {
// Ensure that we are not dragging over to the custom content screen
if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) {
return false;
}
CellLayout layout = (CellLayout) getChildAt(page);
setCurrentDragOverlappingLayout(layout);
// Workspace is responsible for drawing the edge glow on adjacent pages,
// so we need to redraw the workspace when this may have changed.
invalidate();
result = true;
}
}
return result;
}
@Override
public boolean onExitScrollArea() {
boolean result = false;
if (mInScrollArea) {
invalidate();
CellLayout layout = getCurrentDropLayout();
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
result = true;
mInScrollArea = false;
}
return result;
}
private void onResetScrollArea() {
setCurrentDragOverlappingLayout(null);
mInScrollArea = false;
}
/**
* 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<CellLayout>();
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, View parent) {
return info != null && info.id == id;
}
});
}
public View getViewForTag(final Object tag) {
return getFirstMatch(new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v, View parent) {
return info == tag;
}
});
}
public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) {
return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v, View parent) {
return (info instanceof LauncherAppWidgetInfo) &&
((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId;
}
});
}
private 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, View parent) {
if (operator.evaluate(info, v, parent)) {
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, View parent) {
if (v instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) v);
}
// not done, process all the shortcuts
return false;
}
});
}
public void disableShortcutsByPackageName(final ArrayList<String> packages,
final UserHandleCompat user, final int reason) {
final HashSet<String> packageNames = new HashSet<String>();
packageNames.addAll(packages);
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v, View parent) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView) {
ShortcutInfo shortcutInfo = (ShortcutInfo) info;
ComponentName cn = shortcutInfo.getTargetComponent();
if (user.equals(shortcutInfo.user) && cn != null
&& packageNames.contains(cn.getPackageName())) {
shortcutInfo.isDisabled |= reason;
BubbleTextView shortcut = (BubbleTextView) v;
shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache);
if (parent != null) {
parent.invalidate();
}
}
}
// process all the shortcuts
return false;
}
});
}
// Removes ALL items that match a given package name, this is usually called when a package
// has been removed and we want to remove all components (widgets, shortcuts, apps) that
// belong to that package.
void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) {
final HashSet<String> packageNames = new HashSet<String>();
packageNames.addAll(packages);
// Filter out all the ItemInfos that this is going to affect
final HashSet<ItemInfo> infos = new HashSet<ItemInfo>();
final HashSet<ComponentName> cns = new HashSet<ComponentName>();
ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
for (CellLayout layoutParent : cellLayouts) {
ViewGroup layout = layoutParent.getShortcutsAndWidgets();
int childCount = layout.getChildCount();
for (int i = 0; i < childCount; ++i) {
View view = layout.getChildAt(i);
infos.add((ItemInfo) view.getTag());
}
}
LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() {
@Override
public boolean filterItem(ItemInfo parent, ItemInfo info,
ComponentName cn) {
if (packageNames.contains(cn.getPackageName())
&& info.user.equals(user)) {
cns.add(cn);
return true;
}
return false;
}
};
LauncherModel.filterItemInfos(infos, filter);
// Remove the affected components
removeItemsByComponentName(cns, user);
}
/**
* Removes items that match the item info specified. When applications are removed
* as a part of an update, this is called to ensure that other widgets and application
* shortcuts are not removed.
*/
void removeItemsByComponentName(final HashSet<ComponentName> componentNames,
final UserHandleCompat user) {
ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
for (final CellLayout layoutParent: cellLayouts) {
final ViewGroup layout = layoutParent.getShortcutsAndWidgets();
final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>();
for (int j = 0; j < layout.getChildCount(); j++) {
final View view = layout.getChildAt(j);
children.put((ItemInfo) view.getTag(), view);
}
final ArrayList<View> childrenToRemove = new ArrayList<View>();
final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove =
new HashMap<FolderInfo, ArrayList<ShortcutInfo>>();
LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() {
@Override
public boolean filterItem(ItemInfo parent, ItemInfo info,
ComponentName cn) {
if (parent instanceof FolderInfo) {
if (componentNames.contains(cn) && info.user.equals(user)) {
FolderInfo folder = (FolderInfo) parent;
ArrayList<ShortcutInfo> appsToRemove;
if (folderAppsToRemove.containsKey(folder)) {
appsToRemove = folderAppsToRemove.get(folder);
} else {
appsToRemove = new ArrayList<ShortcutInfo>();
folderAppsToRemove.put(folder, appsToRemove);
}
appsToRemove.add((ShortcutInfo) info);
return true;
}
} else {
if (componentNames.contains(cn) && info.user.equals(user)) {
childrenToRemove.add(children.get(info));
return true;
}
}
return false;
}
};
LauncherModel.filterItemInfos(children.keySet(), filter);
// Remove all the apps from their folders
for (FolderInfo folder : folderAppsToRemove.keySet()) {
ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder);
for (ShortcutInfo info : appsToRemove) {
folder.remove(info);
}
}
// Remove all the other children
for (View child : childrenToRemove) {
// 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);
}
}
if (childrenToRemove.size() > 0) {
layout.requestLayout();
layout.invalidate();
}
}
// Strip all the empty screens
stripEmptyScreens();
}
public interface ItemOperator {
/**
* Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}.
*
* @param info info for the shortcut
* @param view view for the shortcut
* @param parent containing folder, or null
* @return true if done, false to continue the map
*/
public boolean evaluate(ItemInfo info, View view, View parent);
}
/**
* 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, folder)) {
return;
}
}
} else {
if (op.evaluate(info, item, null)) {
return;
}
}
}
}
}
void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) {
final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts);
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v, View parent) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView &&
updates.contains(info)) {
ShortcutInfo si = (ShortcutInfo) info;
BubbleTextView shortcut = (BubbleTextView) v;
Drawable oldIcon = getTextViewIcon(shortcut);
boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable)
&& ((PreloadIconDrawable) oldIcon).hasNotCompleted();
shortcut.applyFromShortcutInfo(si, mIconCache,
si.isPromise() != oldPromiseState);
if (parent != null) {
parent.invalidate();
}
}
// process all the shortcuts
return false;
}
});
}
public void removeAbandonedPromise(String packageName, UserHandleCompat user) {
ArrayList<String> packages = new ArrayList<String>(1);
packages.add(packageName);
LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user);
removeItemsByPackageName(packages, user);
}
public void updateRestoreItems(final HashSet<ItemInfo> updates) {
mapOverItems(MAP_RECURSE, new ItemOperator() {
@Override
public boolean evaluate(ItemInfo info, View v, View parent) {
if (info instanceof ShortcutInfo && v instanceof BubbleTextView
&& updates.contains(info)) {
((BubbleTextView) v).applyState(false);
} else if (v instanceof PendingAppWidgetHostView
&& info instanceof LauncherAppWidgetInfo
&& updates.contains(info)) {
((PendingAppWidgetHostView) v).applyState();
}
// process all the shortcuts
return false;
}
});
}
public void widgetsRestored(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)
.getAppWidgetInfo(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
for (LauncherAppWidgetInfo info : changedInfo) {
if (info.hostView instanceof PendingAppWidgetHostView) {
info.installProgress = 100;
((PendingAppWidgetHostView) info.hostView).applyState();
}
}
}
}
}
private void moveToScreen(int page, boolean animate) {
if (!workspaceInModalState()) {
if (animate) {
snapToPage(page);
} else {
setCurrentPage(page);
}
}
View child = getChildAt(page);
if (child != null) {
child.requestFocus();
}
}
void moveToDefaultScreen(boolean animate) {
moveToScreen(getDefaultPage(), animate);
}
void moveToCustomContentScreen(boolean animate) {
if (hasCustomContent()) {
int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID);
if (animate) {
snapToPage(ccIndex);
} else {
setCurrentPage(ccIndex);
}
View child = getChildAt(ccIndex);
if (child != null) {
child.requestFocus();
}
}
exitWidgetResizeMode();
}
@Override
protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) {
long screenId = getScreenIdForPageIndex(pageIndex);
if (screenId == EXTRA_EMPTY_SCREEN_ID) {
int count = mScreenOrder.size() - numCustomPages();
if (count > 1) {
return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current,
R.drawable.ic_pageindicator_add);
}
}
return super.getPageIndicatorMarker(pageIndex);
}
protected String getPageIndicatorDescription() {
String settings = getResources().getString(R.string.settings_button_text);
return getCurrentPageDescription() + ", " + settings;
}
protected String getCurrentPageDescription() {
if (hasCustomContent() && getNextPage() == 0) {
return mCustomContentDescription;
}
int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
return getPageDescription(page);
}
private String getPageDescription(int page) {
int delta = numCustomPages();
int nScreens = getChildCount() - delta;
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--;
}
return getContext().getString(R.string.workspace_scroll_format,
page + 1 - delta, nScreens);
}
@Override
public void fillInLaunchSourceData(View v, Bundle sourceData) {
sourceData.putString(Stats.SOURCE_EXTRA_CONTAINER, Stats.CONTAINER_HOMESCREEN);
sourceData.putInt(Stats.SOURCE_EXTRA_CONTAINER_PAGE, getCurrentPage());
}
/**
* Used as a workaround to ensure that the AppWidgetService receives the
* PACKAGE_ADDED broadcast before updating widgets.
*/
private class DeferredWidgetRefresh implements Runnable {
private final ArrayList<LauncherAppWidgetInfo> mInfos;
private final LauncherAppWidgetHost mHost;
private final Handler mHandler;
private boolean mRefreshPending;
public 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;
for (LauncherAppWidgetInfo info : mInfos) {
if (info.hostView instanceof PendingAppWidgetHostView) {
// Remove and rebind the current widget, but don't delete it from the database
PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView;
mLauncher.removeItem(view, info, false /* deleteFromDb */);
mLauncher.bindAppWidget(info);
}
}
}
}
}