/*
* Copyright (C) 2011 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.phonemetra.turbo.launcher;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.Process;
import android.provider.Settings;
import android.support.v4.view.ViewCompat;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.GridLayout;
import android.widget.ImageView;
import android.widget.Toast;
import com.phonemetra.turbo.launcher.DropTarget.DragObject;
import com.phonemetra.turbo.launcher.settings.SettingsProvider;
import com.phonemetra.turbo.launcher.R;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
interface AsyncTaskCallback {
void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data);
}
class AsyncTaskPageData {
enum Type {
LoadWidgetPreviewData
}
AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR,
AsyncTaskCallback postR, WidgetPreviewLoader w) {
page = p;
items = l;
generatedImages = new ArrayList<Bitmap>();
maxImageWidth = cw;
maxImageHeight = ch;
doInBackgroundCallback = bgR;
postExecuteCallback = postR;
widgetPreviewLoader = w;
}
void cleanup(boolean cancelled) {
// Clean up any references to source/generated bitmaps
if (generatedImages != null) {
if (cancelled) {
for (int i = 0; i < generatedImages.size(); i++) {
widgetPreviewLoader.recycleBitmap(items.get(i), generatedImages.get(i));
}
}
generatedImages.clear();
}
}
int page;
ArrayList<Object> items;
ArrayList<Bitmap> sourceImages;
ArrayList<Bitmap> generatedImages;
int maxImageWidth;
int maxImageHeight;
AsyncTaskCallback doInBackgroundCallback;
AsyncTaskCallback postExecuteCallback;
WidgetPreviewLoader widgetPreviewLoader;
}
class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> {
AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) {
page = p;
threadPriority = Process.THREAD_PRIORITY_DEFAULT;
dataType = ty;
}
@Override
protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) {
if (params.length != 1) return null;
// Load each of the widget previews in the background
params[0].doInBackgroundCallback.run(this, params[0]);
return params[0];
}
@Override
protected void onPostExecute(AsyncTaskPageData result) {
// All the widget previews are loaded, so we can just callback to inflate the page
result.postExecuteCallback.run(this, result);
}
void setThreadPriority(int p) {
threadPriority = p;
}
void syncThreadPriority() {
Process.setThreadPriority(threadPriority);
}
// The page that this async task is associated with
AsyncTaskPageData.Type dataType;
int page;
int threadPriority;
}
/**
* The Apps/Customize page that displays all the applications, widgets, and shortcuts.
*/
public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements
View.OnClickListener, View.OnKeyListener, DragSource,
PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener,
LauncherTransitionable {
static final String TAG = "AppsCustomizePagedView";
/**
* The different content types that this paged view can show.
*/
public enum ContentType {
Applications,
Widgets
}
private ContentType mContentType = ContentType.Applications;
/**
* The different sort modes than can be used to order items.
*/
public enum SortMode {
Title(0),
LaunchCount(1),
InstallTime(2);
private final int mValue;
private SortMode(int value) {
mValue = value;
}
public int getValue() {
return mValue;
}
public static SortMode getModeForValue(int value) {
switch (value) {
case 1:
return LaunchCount;
case 2:
return InstallTime;
default :
return Title;
}
}
}
private SortMode mSortMode = SortMode.Title;
private int mFilterApps = FILTER_APPS_SYSTEM_FLAG | FILTER_APPS_DOWNLOADED_FLAG;
private static final int FILTER_APPS_SYSTEM_FLAG = 1;
private static final int FILTER_APPS_DOWNLOADED_FLAG = 2;
// Refs
private Launcher mLauncher;
private DragController mDragController;
private final LayoutInflater mLayoutInflater;
private final PackageManager mPackageManager;
// Save and Restore
private int mSaveInstanceStateItemIndex = -1;
private PagedViewIcon mPressedIcon;
// Content
private ArrayList<AppInfo> mApps;
private ArrayList<Object> mWidgets;
private ArrayList<AppInfo> mFilteredApps;
private ArrayList<Object> mFilteredWidgets;
private ArrayList<ComponentName> mProtectedApps;
private ArrayList<String> mProtectedPackages;
// Caching
private Canvas mCanvas;
private IconCache mIconCache;
// Dimens
private int mContentWidth, mContentHeight;
private int mWidgetCountX, mWidgetCountY;
private int mWidgetWidthGap, mWidgetHeightGap;
private PagedViewCellLayout mWidgetSpacingLayout;
private int mNumAppsPages;
private int mNumWidgetPages;
private Rect mAllAppsPadding = new Rect();
// Animation states
enum State { NORMAL, OVERVIEW};
private State mState = State.NORMAL;
private boolean mIsSwitchingState = false;
private boolean mAppsCustomizeFadeInAdjacentScreens;
// Animation values
private float mNewScale;
private float[] mOldBackgroundAlphas;
private float[] mOldAlphas;
private float[] mNewBackgroundAlphas;
private float[] mNewAlphas;
// Relating to the scroll and overscroll effects
private static float TRANSITION_MAX_ROTATION = 22;
private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f;
private boolean mOverscrollTransformsSet;
private float mLastOverscrollPivotX;
// Previews & outlines
ArrayList<AppsCustomizeAsyncTask> mRunningTasks;
private static final int sPageSleepDelay = 200;
private Runnable mInflateWidgetRunnable = null;
private Runnable mBindWidgetRunnable = null;
static final int WIDGET_NO_CLEANUP_REQUIRED = -1;
static final int WIDGET_PRELOAD_PENDING = 0;
static final int WIDGET_BOUND = 1;
static final int WIDGET_INFLATED = 2;
int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED;
int mWidgetLoadingId = -1;
PendingAddWidgetInfo mCreateWidgetInfo = null;
private boolean mDraggingWidget = false;
private Toast mWidgetInstructionToast;
private boolean mInTransition;
private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems =
new ArrayList<AsyncTaskPageData>();
private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks =
new ArrayList<Runnable>();
private Rect mTmpRect = new Rect();
private float mOverviewModeShrinkFactor;
private int mOverviewModePageOffset;
// Used for drawing shortcut previews
BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache();
PaintCache mCachedShortcutPreviewPaint = new PaintCache();
CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache();
// Used for drawing widget previews
CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache();
RectCache mCachedAppWidgetPreviewSrcRect = new RectCache();
RectCache mCachedAppWidgetPreviewDestRect = new RectCache();
PaintCache mCachedAppWidgetPreviewPaint = new PaintCache();
WidgetPreviewLoader mWidgetPreviewLoader;
private boolean mInBulkBind;
private boolean mNeedToUpdatePageCountsAndInvalidateData;
private static boolean sAccessibilityEnabled;
public AppsCustomizePagedView(Context context, AttributeSet attrs) {
super(context, attrs);
mLayoutInflater = LayoutInflater.from(context);
mPackageManager = context.getPackageManager();
mApps = new ArrayList<AppInfo>();
mFilteredApps = new ArrayList<AppInfo>();
mWidgets = new ArrayList<Object>();
mFilteredWidgets = new ArrayList<Object>();
mIconCache = (LauncherAppState.getInstance()).getIconCache();
mCanvas = new Canvas();
mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>();
// Save the default widget preview background
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0);
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
mWidgetWidthGap = mWidgetHeightGap = grid.edgeMarginPx;
mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2);
mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2);
a.recycle();
mWidgetSpacingLayout = new PagedViewCellLayout(getContext());
// The padding on the non-matched dimension for the default widget preview icons
// (top + bottom)
mAppsCustomizeFadeInAdjacentScreens = SettingsProvider.getBoolean(context,
SettingsProvider.SETTINGS_UI_DRAWER_SCROLLING_FADE_ADJACENT,
R.bool.preferences_interface_drawer_scrolling_fade_adjacent_default);
TransitionEffect.setFromString(this, SettingsProvider.getString(context,
SettingsProvider.SETTINGS_UI_DRAWER_SCROLLING_TRANSITION_EFFECT,
R.string.preferences_interface_drawer_scrolling_transition_effect));
// Unless otherwise specified this view is important for accessibility.
if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
updateProtectedAppsList(context);
}
@Override
protected void init() {
super.init();
mCenterPagesVertically = false;
Context context = getContext();
Resources r = context.getResources();
mCameraDistance = (int) CAMERA_DISTANCE;//r.getInteger(R.integer.config_cameraDistance);
setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f);
mOverviewModeShrinkFactor =
r.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f;
mOverviewModePageOffset = r.getDimensionPixelSize(R.dimen.overview_mode_page_offset);
setMinScale(mOverviewModeShrinkFactor - 0.2f);
}
public void onFinishInflate() {
super.onFinishInflate();
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
setPadding(grid.edgeMarginPx, 2 * grid.edgeMarginPx,
grid.edgeMarginPx, 2 * grid.edgeMarginPx);
}
void setAllAppsPadding(Rect r) {
mAllAppsPadding.set(r);
}
void setWidgetsPageIndicatorPadding(int pageIndicatorHeight) {
mPageLayoutPaddingBottom = pageIndicatorHeight;
}
WidgetPreviewLoader getWidgetPreviewLoader() {
if (mWidgetPreviewLoader == null) {
mWidgetPreviewLoader = new WidgetPreviewLoader(mLauncher);
}
return mWidgetPreviewLoader;
}
/** Returns the item index of the center item on this page so that we can restore to this
* item index when we rotate. */
private int getMiddleComponentIndexOnCurrentPage() {
int i = -1;
if (getPageCount() > 0) {
int currentPage = getCurrentPage();
if (mContentType == ContentType.Applications) {
AppsCustomizeCellLayout layout = (AppsCustomizeCellLayout) getPageAt(currentPage);
ShortcutAndWidgetContainer childrenLayout = layout.getShortcutsAndWidgets();
int numItemsPerPage = mCellCountX * mCellCountY;
int childCount = childrenLayout.getChildCount();
if (childCount > 0) {
i = (currentPage * numItemsPerPage) + (childCount / 2);
}
} else if (mContentType == ContentType.Widgets) {
int numApps = mFilteredApps.size();
PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage);
int numItemsPerPage = mWidgetCountX * mWidgetCountY;
int childCount = layout.getChildCount();
if (childCount > 0) {
i = numApps +
(currentPage * numItemsPerPage) + (childCount / 2);
}
} else {
throw new RuntimeException("Invalid ContentType");
}
}
return i;
}
/** Get the index of the item to restore to if we need to restore the current page. */
int getSaveInstanceStateIndex() {
if (mSaveInstanceStateItemIndex == -1) {
mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage();
}
return mSaveInstanceStateItemIndex;
}
/** Returns the page in the current orientation which is expected to contain the specified
* item index. */
int getPageForComponent(int index) {
if (index < 0) return 0;
if (index < mFilteredApps.size()) {
int numItemsPerPage = mCellCountX * mCellCountY;
return (index / numItemsPerPage);
} else {
int numItemsPerPage = mWidgetCountX * mWidgetCountY;
return (index - mFilteredApps.size()) / numItemsPerPage;
}
}
/** Restores the page for an item at the specified index */
void restorePageForIndex(int index) {
if (index < 0) return;
mSaveInstanceStateItemIndex = index;
}
private void updatePageCounts() {
mNumWidgetPages = (int) Math.ceil((float) mFilteredWidgets.size()
/ (mWidgetCountX * mWidgetCountY));
mNumAppsPages = (int) Math.ceil((float) mFilteredApps.size() / (mCellCountX * mCellCountY));
}
protected void onDataReady(int width, int height) {
// Now that the data is ready, we can calculate the content width, the number of cells to
// use for each page
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop,
mPageLayoutPaddingRight, mPageLayoutPaddingBottom);
mCellCountX = (int) grid.allAppsNumCols;
mCellCountY = (int) grid.allAppsNumRows;
updatePageCounts();
// Force a measure to update recalculate the gaps
mContentWidth = getMeasuredWidth() - getPaddingLeft() - getPaddingRight();
mContentHeight = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();
int widthSpec = MeasureSpec.makeMeasureSpec(mContentWidth, MeasureSpec.AT_MOST);
int heightSpec = MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.AT_MOST);
mWidgetSpacingLayout.measure(widthSpec, heightSpec);
AppsCustomizeLayout host = (AppsCustomizeLayout) getLayout();
final boolean hostIsTransitioning = host.isTransitioning();
// Restore the page
int page = getPageForComponent(mSaveInstanceStateItemIndex);
invalidatePageData(Math.max(0, page), hostIsTransitioning);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
if (!isDataReady()) {
if (((LauncherAppState.isDisableAllApps() || !mFilteredApps.isEmpty()) && !mFilteredWidgets.isEmpty())) {
setDataIsReady();
setMeasuredDimension(width, height);
onDataReady(width, height);
}
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
public void onPackagesUpdated(ArrayList<Object> widgetsAndShortcuts) {
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
// Get the list of widgets and shortcuts
mWidgets.clear();
for (Object o : widgetsAndShortcuts) {
if (o instanceof AppWidgetProviderInfo) {
AppWidgetProviderInfo widget = (AppWidgetProviderInfo) o;
if (!app.shouldShowAppOrWidgetProvider(widget.provider)) {
continue;
}
widget.label = widget.label.trim();
if (widget.minWidth > 0 && widget.minHeight > 0) {
// Ensure that all widgets we show can be added on a workspace of this size
int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget);
int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget);
int minSpanX = Math.min(spanXY[0], minSpanXY[0]);
int minSpanY = Math.min(spanXY[1], minSpanXY[1]);
if (minSpanX <= (int) grid.numColumns &&
minSpanY <= (int) grid.numRows) {
mWidgets.add(widget);
} else {
Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" +
widget.minWidth + ", " + widget.minHeight + ")");
}
} else {
Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" +
widget.minWidth + ", " + widget.minHeight + ")");
}
} else {
// just add shortcuts
mWidgets.add(o);
}
}
filterWidgets();
}
public void setBulkBind(boolean bulkBind) {
if (bulkBind) {
mInBulkBind = true;
} else {
mInBulkBind = false;
if (mNeedToUpdatePageCountsAndInvalidateData) {
updatePageCountsAndInvalidateData();
}
}
}
private void updatePageCountsAndInvalidateData() {
if (mInBulkBind) {
mNeedToUpdatePageCountsAndInvalidateData = true;
} else {
updatePageCounts();
invalidateOnDataChange();
mNeedToUpdatePageCountsAndInvalidateData = false;
}
}
@Override
public void onClick(View v) {
// When we have exited all apps or are in transition, disregard clicks
if (!mLauncher.isAllAppsVisible() ||
mLauncher.getWorkspace().isSwitchingState()) return;
if (v instanceof PagedViewIcon) {
// Animate some feedback to the click
final AppInfo appInfo = (AppInfo) v.getTag();
// Lock the drawable state to pressed until we return to Launcher
if (mPressedIcon != null) {
mPressedIcon.lockDrawableState();
}
mLauncher.startActivitySafely(v, appInfo.intent, appInfo);
mLauncher.getStats().recordLaunch(appInfo.intent);
} else if (v instanceof PagedViewWidget) {
// Let the user know that they have to long press to add a widget
if (mWidgetInstructionToast != null) {
mWidgetInstructionToast.cancel();
}
mWidgetInstructionToast = Toast.makeText(getContext(),R.string.long_press_widget_to_add,
Toast.LENGTH_SHORT);
mWidgetInstructionToast.show();
// Create a little animation to show that the widget can move
float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY);
final ImageView p = (ImageView) v.findViewById(R.id.widget_preview);
AnimatorSet bounce = LauncherAnimUtils.createAnimatorSet();
ValueAnimator tyuAnim = LauncherAnimUtils.ofFloat(p, "translationY", offsetY);
tyuAnim.setDuration(125);
ValueAnimator tydAnim = LauncherAnimUtils.ofFloat(p, "translationY", 0f);
tydAnim.setDuration(100);
bounce.play(tyuAnim).before(tydAnim);
bounce.setInterpolator(new AccelerateInterpolator());
bounce.start();
}
}
/**
* 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.
*/
@Override
public boolean onTouch(View v, MotionEvent event) {
return isInOverviewMode() || mIsSwitchingState;
}
public boolean onKey(View v, int keyCode, KeyEvent event) {
return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event);
}
private final Workspace.ZoomInInterpolator mZoomInInterpolator = new Workspace.ZoomInInterpolator();
@Override
protected void determineDraggingStart(android.view.MotionEvent ev) {
// Disable dragging by pulling an app down for now.
}
private void beginDraggingApplication(View v) {
mLauncher.getWorkspace().onDragStartedWithItem(v);
mLauncher.getWorkspace().beginDragShared(v, this);
}
Bundle getDefaultOptionsForWidget(Launcher launcher, PendingAddWidgetInfo info) {
Bundle options = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
AppWidgetResizeFrame.getWidgetSizeRanges(mLauncher, info.spanX, info.spanY, mTmpRect);
Rect padding = AppWidgetHostView.getDefaultPaddingForWidget(mLauncher,
info.componentName, null);
float density = getResources().getDisplayMetrics().density;
int xPaddingDips = (int) ((padding.left + padding.right) / density);
int yPaddingDips = (int) ((padding.top + padding.bottom) / density);
options = new Bundle();
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH,
mTmpRect.left - xPaddingDips);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT,
mTmpRect.top - yPaddingDips);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH,
mTmpRect.right - xPaddingDips);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT,
mTmpRect.bottom - yPaddingDips);
}
return options;
}
private void preloadWidget(final PendingAddWidgetInfo info) {
final AppWidgetProviderInfo pInfo = info.info;
final Bundle options = getDefaultOptionsForWidget(mLauncher, info);
if (pInfo.configure != null) {
info.bindOptions = options;
return;
}
mWidgetCleanupState = WIDGET_PRELOAD_PENDING;
mBindWidgetRunnable = new Runnable() {
@Override
public void run() {
mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId();
if (options == null) {
if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed(
mWidgetLoadingId, info.componentName)) {
mWidgetCleanupState = WIDGET_BOUND;
}
} else {
if (AppWidgetManager.getInstance(mLauncher).bindAppWidgetIdIfAllowed(
mWidgetLoadingId, info.componentName, options)) {
mWidgetCleanupState = WIDGET_BOUND;
}
}
}
};
post(mBindWidgetRunnable);
mInflateWidgetRunnable = new Runnable() {
@Override
public void run() {
if (mWidgetCleanupState != WIDGET_BOUND) {
return;
}
AppWidgetHostView hostView = mLauncher.
getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo);
info.boundWidget = hostView;
mWidgetCleanupState = WIDGET_INFLATED;
hostView.setVisibility(INVISIBLE);
int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX,
info.spanY, info, false);
// We want the first widget layout to be the correct size. This will be important
// for width size reporting to the AppWidgetManager.
DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0],
unScaledSize[1]);
lp.x = lp.y = 0;
lp.customPosition = true;
hostView.setLayoutParams(lp);
mLauncher.getDragLayer().addView(hostView);
}
};
post(mInflateWidgetRunnable);
}
@Override
public void onShortPress(View v) {
// We are anticipating a long press, and we use this time to load bind and instantiate
// the widget. This will need to be cleaned up if it turns out no long press occurs.
if (mCreateWidgetInfo != null) {
// Just in case the cleanup process wasn't properly executed. This shouldn't happen.
cleanupWidgetPreloading(false);
}
mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag());
preloadWidget(mCreateWidgetInfo);
}
private void cleanupWidgetPreloading(boolean widgetWasAdded) {
if (!widgetWasAdded) {
// If the widget was not added, we may need to do further cleanup.
PendingAddWidgetInfo info = mCreateWidgetInfo;
mCreateWidgetInfo = null;
if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) {
// We never did any preloading, so just remove pending callbacks to do so
removeCallbacks(mBindWidgetRunnable);
removeCallbacks(mInflateWidgetRunnable);
} else if (mWidgetCleanupState == WIDGET_BOUND) {
// Delete the widget id which was allocated
if (mWidgetLoadingId != -1) {
mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId);
}
// We never got around to inflating the widget, so remove the callback to do so.
removeCallbacks(mInflateWidgetRunnable);
} else if (mWidgetCleanupState == WIDGET_INFLATED) {
// Delete the widget id which was allocated
if (mWidgetLoadingId != -1) {
mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId);
}
// The widget was inflated and added to the DragLayer -- remove it.
AppWidgetHostView widget = info.boundWidget;
mLauncher.getDragLayer().removeView(widget);
}
}
mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED;
mWidgetLoadingId = -1;
mCreateWidgetInfo = null;
PagedViewWidget.resetShortPressTarget();
}
@Override
public void cleanUpShortPress(View v) {
if (!mDraggingWidget) {
cleanupWidgetPreloading(false);
}
}
private boolean beginDraggingWidget(View v) {
mDraggingWidget = true;
// Get the widget preview as the drag representation
ImageView image = (ImageView) v.findViewById(R.id.widget_preview);
PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag();
// If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
// we abort the drag.
if (image.getDrawable() == null) {
mDraggingWidget = false;
return false;
}
// Compose the drag image
Bitmap preview;
Bitmap outline;
float scale = 1f;
Point previewPadding = null;
if (createItemInfo instanceof PendingAddWidgetInfo) {
// This can happen in some weird cases involving multi-touch. We can't start dragging
// the widget if this is null, so we break out.
if (mCreateWidgetInfo == null) {
return false;
}
PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo;
createItemInfo = createWidgetInfo;
int spanX = createItemInfo.spanX;
int spanY = createItemInfo.spanY;
int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY,
createWidgetInfo, true);
FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable();
float minScale = 1.25f;
int maxWidth, maxHeight;
maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]);
maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]);
int[] previewSizeBeforeScale = new int[1];
preview = getWidgetPreviewLoader().generateWidgetPreview(createWidgetInfo.componentName,
createWidgetInfo.previewImage, createWidgetInfo.icon, spanX, spanY,
maxWidth, maxHeight, null, previewSizeBeforeScale);
// Compare the size of the drag preview to the preview in the AppsCustomize tray
int previewWidthInAppsCustomize = Math.min(previewSizeBeforeScale[0],
getWidgetPreviewLoader().maxWidthForWidgetPreview(spanX));
scale = previewWidthInAppsCustomize / (float) preview.getWidth();
// The bitmap in the AppsCustomize tray is always the the same size, so there
// might be extra pixels around the preview itself - this accounts for that
if (previewWidthInAppsCustomize < previewDrawable.getIntrinsicWidth()) {
int padding =
(previewDrawable.getIntrinsicWidth() - previewWidthInAppsCustomize) / 2;
previewPadding = new Point(padding, 0);
}
} else {
PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag();
Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo);
preview = Bitmap.createBitmap(icon.getIntrinsicWidth(),
icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
mCanvas.setBitmap(preview);
mCanvas.save();
WidgetPreviewLoader.renderDrawableToBitmap(icon, preview, 0, 0,
icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
mCanvas.restore();
mCanvas.setBitmap(null);
createItemInfo.spanX = createItemInfo.spanY = 1;
}
// Don't clip alpha values for the drag outline if we're using the default widget preview
boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo &&
(((PendingAddWidgetInfo) createItemInfo).previewImage == 0));
// Save the preview for the outline generation, then dim the preview
outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(),
false);
// Start the drag
mLauncher.lockScreenOrientation();
mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha);
mDragController.startDrag(image, preview, this, createItemInfo,
DragController.DRAG_ACTION_COPY, previewPadding, scale);
outline.recycle();
preview.recycle();
return true;
}
@Override
protected boolean beginDragging(final View v) {
if (!super.beginDragging(v)) return false;
if (v instanceof PagedViewIcon) {
beginDraggingApplication(v);
} else if (v instanceof PagedViewWidget) {
if (!beginDraggingWidget(v)) {
return false;
}
}
// We delay entering spring-loaded mode slightly to make sure the UI
// thready is free of any work.
postDelayed(new Runnable() {
@Override
public void run() {
// We don't enter spring-loaded mode if the drag has been cancelled
if (mLauncher.getDragController().isDragging()) {
// Reset the alpha on the dragged icon before we drag
resetDrawableState();
// Go into spring loaded mode (must happen before we startDrag())
mLauncher.enterSpringLoadedDragMode();
}
}
}, 150);
return true;
}
/**
* Clean up after dragging.
*
* @param target where the item was dragged to (can be null if the item was flung)
*/
private void endDragging(View target, boolean isFlingToDelete, boolean success) {
if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() &&
!(target instanceof DeleteDropTarget) && !(target instanceof Folder))) {
// Exit spring loaded mode if we have not successfully dropped or have not handled the
// drop in Workspace
mLauncher.getWorkspace().removeExtraEmptyScreen(true, new Runnable() {
@Override
public void run() {
mLauncher.exitSpringLoadedDragMode();
mLauncher.unlockScreenOrientation(false);
}
});
} else {
mLauncher.unlockScreenOrientation(false);
}
}
@Override
public View getContent() {
if (getChildCount() > 0) {
return getChildAt(0);
}
return null;
}
@Override
public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) {
mInTransition = true;
if (toWorkspace) {
cancelAllTasks();
}
}
@Override
public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) {
}
@Override
public void onLauncherTransitionStep(Launcher l, float t) {
}
@Override
public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) {
mInTransition = false;
for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) {
onSyncWidgetPageItems(d, false);
}
mDeferredSyncWidgetPageItems.clear();
for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) {
r.run();
}
mDeferredPrepareLoadWidgetPreviewsTasks.clear();
mForceDrawAllChildrenNextFrame = !toWorkspace;
}
@Override
public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete,
boolean success) {
// Return early and wait for onFlingToDeleteCompleted if this was the result of a fling
if (isFlingToDelete) return;
endDragging(target, false, success);
// Display an error message if the drag failed due to there not being enough space on the
// target layout we were dropping on.
if (!success) {
boolean showOutOfSpaceMessage = false;
if (target instanceof Workspace) {
int currentScreen = mLauncher.getCurrentWorkspaceScreen();
Workspace workspace = (Workspace) target;
CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen);
ItemInfo itemInfo = (ItemInfo) d.dragInfo;
if (layout != null) {
layout.calculateSpans(itemInfo);
showOutOfSpaceMessage =
!layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY);
}
}
if (showOutOfSpaceMessage) {
mLauncher.showOutOfSpaceMessage(false);
}
d.deferDragViewCleanupPostAnimation = false;
}
cleanupWidgetPreloading(success);
mDraggingWidget = false;
}
@Override
public void onFlingToDeleteCompleted() {
endDragging(null, true, true);
cleanupWidgetPreloading(false);
mDraggingWidget = false;
}
@Override
public boolean supportsFlingToDelete() {
return true;
}
@Override
public boolean supportsAppInfoDropTarget() {
return true;
}
@Override
public boolean supportsDeleteDropTarget() {
return false;
}
@Override
public float getIntrinsicIconScaleFactor() {
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
return (float) grid.allAppsIconSizePx / grid.iconSizePx;
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
cancelAllTasks();
}
protected void onResume() {
AccessibilityManager am = (AccessibilityManager)
getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
sAccessibilityEnabled = am.isEnabled();
}
public void clearAllWidgetPages() {
cancelAllTasks();
int count = getChildCount();
for (int i = 0; i < count; i++) {
View v = getPageAt(i);
if (v instanceof PagedViewGridLayout) {
((PagedViewGridLayout) v).removeAllViewsOnPage();
mDirtyPageContent.set(i, true);
}
}
}
private void cancelAllTasks() {
// Clean up all the async tasks
Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator();
while (iter.hasNext()) {
AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next();
task.cancel(false);
iter.remove();
mDirtyPageContent.set(task.page, true);
// We've already preallocated the views for the data to load into, so clear them as well
View v = getPageAt(task.page);
if (v instanceof PagedViewGridLayout) {
((PagedViewGridLayout) v).removeAllViewsOnPage();
}
}
mDeferredSyncWidgetPageItems.clear();
mDeferredPrepareLoadWidgetPreviewsTasks.clear();
}
public void setContentType(ContentType type) {
// Widgets appear to be cleared every time you leave, always force invalidate for them
if (mContentType != type || type == ContentType.Widgets) {
int page = (mContentType != type) ? 0 : getCurrentPage();
mContentType = type;
invalidatePageData(page, true);
}
}
public ContentType getContentType() {
return mContentType;
}
protected void snapToPage(int whichPage, int delta, int duration) {
super.snapToPage(whichPage, delta, duration);
// Update the thread priorities given the direction lookahead
Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator();
while (iter.hasNext()) {
AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next();
int pageIndex = task.page;
if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) ||
(mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) {
task.setThreadPriority(getThreadPriorityForPage(pageIndex));
} else {
task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST);
}
}
}
/*
* Apps PagedView implementation
*/
private void setVisibilityOnChildren(ViewGroup layout, int visibility) {
int childCount = layout.getChildCount();
for (int i = 0; i < childCount; ++i) {
layout.getChildAt(i).setVisibility(visibility);
}
}
private void setupPage(AppsCustomizeCellLayout layout) {
layout.setGridSize(mCellCountX, mCellCountY);
layout.setOnClickListener(mLauncher);
// Note: We force a measure here to get around the fact that when we do layout calculations
// immediately after syncing, we don't have a proper width. That said, we already know the
// expected page width, so we can actually optimize by hiding all the TextView-based
// children that are expensive to measure, and let that happen naturally later.
setVisibilityOnChildren(layout, View.GONE);
int widthSpec = MeasureSpec.makeMeasureSpec(mContentWidth, MeasureSpec.AT_MOST);
int heightSpec = MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.AT_MOST);
layout.setMinimumWidth(getPageContentWidth());
layout.measure(widthSpec, heightSpec);
layout.setPadding(mAllAppsPadding.left, mAllAppsPadding.top, mAllAppsPadding.right,
mAllAppsPadding.bottom);
setVisibilityOnChildren(layout, View.VISIBLE);
}
@Override
public void setChildAlpha(View child, float alpha) {
if (child instanceof CellLayout) {
((CellLayout) child).getShortcutsAndWidgets().setAlpha(alpha);
} else {
child.setAlpha(alpha);
}
}
@Override
public void onChildViewAdded(View parent, View child) {
// For overview mode
if (child instanceof CellLayout) {
CellLayout cl = ((CellLayout) child);
cl.setOnInterceptTouchListener(this);
cl.setClickable(true);
cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO);
}
super.onChildViewAdded(parent, child);
}
protected boolean shouldDrawChild(View child) {
return super.shouldDrawChild(child) && (mIsSwitchingState ||
!(child instanceof CellLayout) ||
((CellLayout) child).getShortcutsAndWidgets().getAlpha() > 0);
}
public void syncAppsPageItems(int page, boolean immediate) {
// ensure that we have the right number of items on the pages
final boolean isRtl = isLayoutRtl();
int numCells = mCellCountX * mCellCountY;
int startIndex = page * numCells;
int endIndex = Math.min(startIndex + numCells, mFilteredApps.size());
AppsCustomizeCellLayout layout = (AppsCustomizeCellLayout) getPageAt(page);
layout.removeAllViewsOnPage();
ArrayList<Object> items = new ArrayList<Object>();
ArrayList<Bitmap> images = new ArrayList<Bitmap>();
boolean hideIconLabels = SettingsProvider.getBoolean(mLauncher,
SettingsProvider.SETTINGS_UI_DRAWER_HIDE_ICON_LABELS,
R.bool.preferences_interface_drawer_hide_icon_labels_default);
for (int i = startIndex; i < endIndex; ++i) {
AppInfo info = mFilteredApps.get(i);
PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate(
R.layout.apps_customize_application, layout, false);
icon.applyFromApplicationInfo(info, true, this);
icon.setTextVisibility(!hideIconLabels);
icon.setOnClickListener(this);
icon.setOnLongClickListener(this);
icon.setOnTouchListener(this);
icon.setOnKeyListener(this);
int index = i - startIndex;
int x = index % mCellCountX;
int y = index / mCellCountX;
if (isRtl) {
x = mCellCountX - x - 1;
}
layout.addViewToCellLayout(icon, -1, i, new CellLayout.LayoutParams(x,y, 1,1), false);
items.add(info);
images.add(info.iconBitmap);
}
enableHwLayersOnVisiblePages();
}
/**
* A helper to return the priority for loading of the specified widget page.
*/
private int getWidgetPageLoadPriority(int page) {
// If we are snapping to another page, use that index as the target page index
int toPage = mCurrentPage;
if (mNextPage > -1) {
toPage = mNextPage;
}
// We use the distance from the target page as an initial guess of priority, but if there
// are no pages of higher priority than the page specified, then bump up the priority of
// the specified page.
Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator();
int minPageDiff = Integer.MAX_VALUE;
while (iter.hasNext()) {
AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next();
minPageDiff = Math.abs(task.page - toPage);
}
int rawPageDiff = Math.abs(page - toPage);
return rawPageDiff - Math.min(rawPageDiff, minPageDiff);
}
/**
* Return the appropriate thread priority for loading for a given page (we give the current
* page much higher priority)
*/
private int getThreadPriorityForPage(int page) {
int pageDiff = getWidgetPageLoadPriority(page);
if (pageDiff <= 0) {
return Process.THREAD_PRIORITY_LESS_FAVORABLE;
} else if (pageDiff <= 1) {
return Process.THREAD_PRIORITY_LOWEST;
} else {
return Process.THREAD_PRIORITY_LOWEST;
}
}
private int getSleepForPage(int page) {
int pageDiff = getWidgetPageLoadPriority(page);
return Math.max(0, pageDiff * sPageSleepDelay);
}
/**
* Creates and executes a new AsyncTask to load a page of widget previews.
*/
private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets,
int cellWidth, int cellHeight, int cellCountX) {
// Prune all tasks that are no longer needed
Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator();
while (iter.hasNext()) {
AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next();
int taskPage = task.page;
if (taskPage < getAssociatedLowerPageBound(mCurrentPage) ||
taskPage > getAssociatedUpperPageBound(mCurrentPage)) {
task.cancel(false);
iter.remove();
} else {
task.setThreadPriority(getThreadPriorityForPage(taskPage));
}
}
// We introduce a slight delay to order the loading of side pages so that we don't thrash
final int sleepMs = getSleepForPage(page);
AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight,
new AsyncTaskCallback() {
@Override
public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) {
try {
try {
Thread.sleep(sleepMs);
} catch (Exception e) {}
loadWidgetPreviewsInBackground(task, data);
} finally {
if (task.isCancelled()) {
data.cleanup(true);
}
}
}
},
new AsyncTaskCallback() {
@Override
public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) {
mRunningTasks.remove(task);
if (task.isCancelled()) return;
// do cleanup inside onSyncWidgetPageItems
onSyncWidgetPageItems(data, false);
}
}, getWidgetPreviewLoader());
// Ensure that the task is appropriately prioritized and runs in parallel
AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page,
AsyncTaskPageData.Type.LoadWidgetPreviewData);
t.setThreadPriority(getThreadPriorityForPage(page));
t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData);
mRunningTasks.add(t);
}
/*
* Widgets PagedView implementation
*/
private void setupPage(PagedViewGridLayout layout) {
// Note: We force a measure here to get around the fact that when we do layout calculations
// immediately after syncing, we don't have a proper width.
int widthSpec = MeasureSpec.makeMeasureSpec(mContentWidth, MeasureSpec.AT_MOST);
int heightSpec = MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.AT_MOST);
layout.setMinimumWidth(getPageContentWidth());
layout.measure(widthSpec, heightSpec);
}
public void syncWidgetPageItems(final int page, final boolean immediate) {
int numItemsPerPage = mWidgetCountX * mWidgetCountY;
// Calculate the dimensions of each cell we are giving to each widget
final ArrayList<Object> items = new ArrayList<Object>();
int contentWidth = mContentWidth;
final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight
- ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX);
int contentHeight = mContentHeight;
final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom
- ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY);
// Prepare the set of widgets to load previews for in the background
int offset = page * numItemsPerPage;
for (int i = offset; i < Math.min(offset + numItemsPerPage, mFilteredWidgets.size()); ++i) {
items.add(mFilteredWidgets.get(i));
}
// Prepopulate the pages with the other widget info, and fill in the previews later
final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page);
layout.setColumnCount(layout.getCellCountX());
for (int i = 0; i < items.size(); ++i) {
Object rawInfo = items.get(i);
PendingAddItemInfo createItemInfo = null;
PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate(
R.layout.apps_customize_widget, layout, false);
if (rawInfo instanceof AppWidgetProviderInfo) {
// Fill in the widget information
AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo;
createItemInfo = new PendingAddWidgetInfo(info, null, null);
// Determine the widget spans and min resize spans.
int[] spanXY = Launcher.getSpanForWidget(mLauncher, info);
createItemInfo.spanX = spanXY[0];
createItemInfo.spanY = spanXY[1];
int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info);
createItemInfo.minSpanX = minSpanXY[0];
createItemInfo.minSpanY = minSpanXY[1];
widget.applyFromAppWidgetProviderInfo(info, -1, spanXY, getWidgetPreviewLoader());
widget.setTag(createItemInfo);
widget.setShortPressListener(this);
} else if (rawInfo instanceof ResolveInfo) {
// Fill in the shortcuts information
ResolveInfo info = (ResolveInfo) rawInfo;
createItemInfo = new PendingAddShortcutInfo(info.activityInfo);
createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT;
createItemInfo.componentName = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
widget.applyFromResolveInfo(mPackageManager, info, getWidgetPreviewLoader());
widget.setTag(createItemInfo);
}
widget.setOnClickListener(this);
widget.setOnLongClickListener(this);
widget.setOnTouchListener(this);
widget.setOnKeyListener(this);
// Layout each widget
int ix = i % mWidgetCountX;
int iy = i / mWidgetCountX;
GridLayout.LayoutParams lp = new GridLayout.LayoutParams(
GridLayout.spec(iy, GridLayout.START),
GridLayout.spec(ix, GridLayout.TOP));
lp.width = cellWidth;
lp.height = cellHeight;
lp.setGravity(Gravity.TOP | Gravity.START);
if (ix > 0) lp.leftMargin = mWidgetWidthGap;
if (iy > 0) lp.topMargin = mWidgetHeightGap;
layout.addView(widget, lp);
}
// wait until a call on onLayout to start loading, because
// PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out
// TODO: can we do a measure/layout immediately?
layout.setOnLayoutListener(new Runnable() {
public void run() {
// Load the widget previews
int maxPreviewWidth = cellWidth;
int maxPreviewHeight = cellHeight;
if (layout.getChildCount() > 0) {
PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0);
int[] maxSize = w.getPreviewSize();
maxPreviewWidth = maxSize[0];
maxPreviewHeight = maxSize[1];
}
getWidgetPreviewLoader().setPreviewSize(
maxPreviewWidth, maxPreviewHeight, mWidgetSpacingLayout);
if (immediate) {
AsyncTaskPageData data = new AsyncTaskPageData(page, items,
maxPreviewWidth, maxPreviewHeight, null, null, getWidgetPreviewLoader());
loadWidgetPreviewsInBackground(null, data);
onSyncWidgetPageItems(data, immediate);
} else {
if (mInTransition) {
mDeferredPrepareLoadWidgetPreviewsTasks.add(this);
} else {
prepareLoadWidgetPreviewsTask(page, items,
maxPreviewWidth, maxPreviewHeight, mWidgetCountX);
}
}
layout.setOnLayoutListener(null);
}
});
}
private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task,
AsyncTaskPageData data) {
// loadWidgetPreviewsInBackground can be called without a task to load a set of widget
// previews synchronously
if (task != null) {
// Ensure that this task starts running at the correct priority
task.syncThreadPriority();
}
// Load each of the widget/shortcut previews
ArrayList<Object> items = data.items;
ArrayList<Bitmap> images = data.generatedImages;
int count = items.size();
for (int i = 0; i < count; ++i) {
if (task != null) {
// Ensure we haven't been cancelled yet
if (task.isCancelled()) break;
// Before work on each item, ensure that this task is running at the correct
// priority
task.syncThreadPriority();
}
images.add(getWidgetPreviewLoader().getPreview(items.get(i)));
}
}
private void onSyncWidgetPageItems(AsyncTaskPageData data, boolean immediatelySyncItems) {
if (!immediatelySyncItems && mInTransition) {
mDeferredSyncWidgetPageItems.add(data);
return;
}
try {
int page = data.page;
PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page);
ArrayList<Object> items = data.items;
int count = items.size();
for (int i = 0; i < count; ++i) {
PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i);
if (widget != null) {
Bitmap preview = data.generatedImages.get(i);
widget.applyPreview(new FastBitmapDrawable(preview), i);
}
}
enableHwLayersOnVisiblePages();
// Update all thread priorities
Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator();
while (iter.hasNext()) {
AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next();
int pageIndex = task.page;
task.setThreadPriority(getThreadPriorityForPage(pageIndex));
}
} finally {
data.cleanup(false);
}
}
@Override
public void syncPages() {
disablePagedViewAnimations();
removeAllViews();
cancelAllTasks();
Context context = getContext();
if (mContentType == ContentType.Applications) {
for (int i = 0; i < mNumAppsPages; ++i) {
AppsCustomizeCellLayout layout = new AppsCustomizeCellLayout(context);
setupPage(layout);
addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
}
} else if (mContentType == ContentType.Widgets) {
for (int j = 0; j < mNumWidgetPages; ++j) {
PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX,
mWidgetCountY);
setupPage(layout);
addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
}
} else {
throw new RuntimeException("Invalid ContentType");
}
enablePagedViewAnimations();
}
@Override
public void syncPageItems(int page, boolean immediate) {
if (mContentType == ContentType.Widgets) {
syncWidgetPageItems(page, immediate);
} else {
syncAppsPageItems(page, immediate);
}
}
// We want our pages to be z-ordered such that the further a page is to the left, the higher
// it is in the z-order. This is important to insure touch events are handled correctly.
View getPageAt(int index) {
return getChildAt(indexToPage(index));
}
@Override
protected int indexToPage(int index) {
return getChildCount() - index - 1;
}
@Override
public void setFadeInAdjacentScreens(boolean fade) {
mAppsCustomizeFadeInAdjacentScreens = fade;
}
@Override
protected void screenScrolled(int screenCenter) {
final boolean isRtl = isLayoutRtl();
mUseTransitionEffect = !isInOverviewMode() && !mIsSwitchingState;
updatePageAlphaValues(screenCenter);
super.screenScrolled(screenCenter);
enableHwLayersOnVisiblePages();
boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX;
if (isInOverscroll) {
int index = 0;
float pivotX = 0f;
final float leftBiasedPivot = 0.35f;
final float rightBiasedPivot = 0.65f;
final int lowerIndex = 0;
final int upperIndex = getChildCount() - 1;
final boolean isLeftPage = mOverScrollX < 0;
index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex;
pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot;
View v = getPageAt(index);
if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) {
mOverscrollTransformsSet = true;
mLastOverscrollPivotX = pivotX;
v.setCameraDistance(mDensity * mCameraDistance);
v.setPivotX(v.getMeasuredWidth() * pivotX);
}
float scrollProgress = getScrollProgress(screenCenter, v, index);
float rotation = -TRANSITION_MAX_ROTATION * scrollProgress;
v.setRotationY(rotation);
} else {
if (mOverscrollTransformsSet) {
mOverscrollTransformsSet = false;
View v0 = getPageAt(mCurrentPage);
v0.setRotationY(0);
v0.setCameraDistance(mDensity * mCameraDistance);
v0.setPivotX(v0.getMeasuredWidth() / 2);
v0.setPivotY(v0.getMeasuredHeight() / 2);
}
}
}
private void enableHwLayersOnVisiblePages() {
final int screenCount = getChildCount();
getVisiblePages(mTempVisiblePagesRange);
int leftScreen = mTempVisiblePagesRange[0];
int rightScreen = mTempVisiblePagesRange[1];
int forceDrawScreen = -1;
if (leftScreen == rightScreen) {
// make sure we're caching at least two pages always
if (rightScreen < screenCount - 1) {
rightScreen++;
forceDrawScreen = rightScreen;
} else if (leftScreen > 0) {
leftScreen--;
forceDrawScreen = leftScreen;
}
} else {
forceDrawScreen = leftScreen + 1;
}
for (int i = 0; i < screenCount; i++) {
final View layout = (View) getPageAt(i);
boolean enableLayer = leftScreen <= i && i <= rightScreen &&
(i == forceDrawScreen || shouldDrawChild(layout));
if (layout instanceof CellLayout) {
((CellLayout) layout).enableHardwareLayer(enableLayer);
} else if (enableLayer) {
if (layout.getLayerType() != LAYER_TYPE_HARDWARE) {
layout.setLayerType(LAYER_TYPE_HARDWARE, null);
}
} else {
layout.setLayerType(LAYER_TYPE_NONE, null);
}
}
}
protected void overScroll(float amount) {
acceleratedOverScroll(amount);
}
private void updatePageAlphaValues(int screenCenter) {
boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX;
if (mAppsCustomizeFadeInAdjacentScreens &&
mState == State.NORMAL &&
!mIsSwitchingState &&
!isInOverscroll) {
for (int i = 0; i < getChildCount(); i++) {
View child = getPageAt(i);
if (child != null) {
float scrollProgress = getScrollProgress(screenCenter, child, i);
float alpha = 1 - Math.abs(scrollProgress);
setChildAlpha(child, alpha);
}
}
}
}
public boolean isInOverviewMode() {
return mState == State.OVERVIEW;
}
public boolean enterOverviewMode() {
if (mTouchState != TOUCH_STATE_REST || !mIsDataReady || mContentType != ContentType.Applications) {
return false;
}
enableOverviewMode(true, -1, true);
return true;
}
public void exitOverviewMode(boolean animated) {
exitOverviewMode(-1, animated);
}
public void exitOverviewMode(int snapPage, boolean animated) {
enableOverviewMode(false, snapPage, animated);
}
private void enableOverviewMode(boolean enable, int snapPage, boolean animated) {
State finalState = AppsCustomizePagedView.State.OVERVIEW;
if (!enable) {
finalState = AppsCustomizePagedView.State.NORMAL;
}
mLauncher.updateOverviewPanel();
Animator appsCustomizeAnim = getChangeStateAnimation(finalState, animated, 0, snapPage);
if (appsCustomizeAnim != null) {
onTransitionPrepare();
appsCustomizeAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator arg0) {
onTransitionEnd();
}
});
appsCustomizeAnim.start();
}
}
int getOverviewModeTranslationY() {
int childHeight = getNormalChildHeight();
int viewPortHeight = getViewportHeight();
int scaledChildHeight = (int) (mOverviewModeShrinkFactor * childHeight);
int offset = (viewPortHeight - scaledChildHeight) / 2;
int offsetDelta = mOverviewModePageOffset - offset + mInsets.top;
return offsetDelta;
}
private void setState(State state) {
mState = state;
updateAccessibilityFlags();
}
private void updateAccessibilityFlags() {
int accessible = mState == State.NORMAL ?
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES :
ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS;
setImportantForAccessibility(accessible);
}
private void initAnimationArrays() {
final int childCount = getChildCount();
if (mOldBackgroundAlphas != null) return;
mOldBackgroundAlphas = new float[childCount];
mOldAlphas = new float[childCount];
mNewBackgroundAlphas = new float[childCount];
mNewAlphas = new float[childCount];
}
Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) {
if (mState == state) {
return null;
}
// Initialize animation arrays for the first time if necessary
initAnimationArrays();
AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null;
final State oldState = mState;
final boolean oldStateIsNormal = (oldState == State.NORMAL);
final boolean oldStateIsOverview = (oldState == State.OVERVIEW);
setState(state);
final boolean stateIsNormal = (state == State.NORMAL);
final boolean stateIsOverview = (state == State.OVERVIEW);
float finalBackgroundAlpha = stateIsOverview ? 1.0f : 0f;
float finalPageIndicatorAlpha = stateIsOverview ? 0f : 1f;
float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f;
float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0;
boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview);
boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal);
mNewScale = 1.0f;
if (state != State.NORMAL) {
if (stateIsOverview) {
mNewScale = mOverviewModeShrinkFactor;
}
}
final int duration = getResources().getInteger(R.integer.config_overviewTransitionTime);
for (int i = 0; i < getChildCount(); i++) {
final CellLayout cl = (CellLayout) getChildAt(i);
float finalAlpha = 1f;
if (stateIsOverview) {
cl.setVisibility(VISIBLE);
cl.setTranslationX(0f);
cl.setTranslationY(0f);
cl.setPivotX(cl.getMeasuredWidth() * 0.5f);
cl.setPivotY(cl.getMeasuredHeight() * 0.5f);
cl.setRotation(0f);
cl.setRotationY(0f);
cl.setRotationX(0f);
cl.setScaleX(1f);
cl.setScaleY(1f);
cl.setShortcutAndWidgetAlpha(1f);
}
mOldAlphas[i] = cl.getShortcutsAndWidgets().getAlpha();
mNewAlphas[i] = finalAlpha;
if (animated) {
mOldBackgroundAlphas[i] = cl.getBackgroundAlpha();
mNewBackgroundAlphas[i] = finalBackgroundAlpha;
} else {
cl.setBackgroundAlpha(finalBackgroundAlpha);
cl.setShortcutAndWidgetAlpha(finalAlpha);
}
}
final View overviewPanel = mLauncher.getOverviewPanel();
if (animated) {
anim.setDuration(duration);
LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this);
scale.scaleX(mNewScale)
.scaleY(mNewScale)
.translationY(finalWorkspaceTranslationY)
.setInterpolator(mZoomInInterpolator);
anim.play(scale);
ValueAnimator invalidate = ValueAnimator.ofFloat(0f, 1f);
invalidate.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
invalidate();
}
});
anim.play(invalidate);
ObjectAnimator pageIndicatorAlpha = null;
if (getPageIndicator() != null) {
pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha",
finalPageIndicatorAlpha);
}
ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel,
"alpha", finalOverviewPanelAlpha);
overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel));
if (overviewToWorkspace) {
overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2));
}
if (getPageIndicator() != null) {
pageIndicatorAlpha.addListener(new AlphaUpdateListener(getPageIndicator()));
}
anim.play(overviewPanelAlpha);
anim.play(pageIndicatorAlpha);
for (int index = 0; index < getChildCount(); index++) {
final int i = index;
final CellLayout cl = (CellLayout) getChildAt(i);
if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) {
cl.setBackgroundAlpha(mNewBackgroundAlphas[i]);
cl.getShortcutsAndWidgets().setAlpha(mNewAlphas[i]);
} else {
LauncherViewPropertyAnimator a = new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets());
a.alpha(mNewAlphas[i])
.setDuration(duration)
.setInterpolator(mZoomInInterpolator);
anim.play(a);
if (mOldBackgroundAlphas[i] != 0 ||
mNewBackgroundAlphas[i] != 0) {
ValueAnimator bgAnim =
LauncherAnimUtils.ofFloat(cl, 0f, 1f);
bgAnim.setInterpolator(mZoomInInterpolator);
bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() {
public void onAnimationUpdate(float a, float b) {
cl.setBackgroundAlpha(
a * mOldBackgroundAlphas[i] +
b * mNewBackgroundAlphas[i]);
}
});
anim.play(bgAnim);
}
}
}
anim.setStartDelay(delay);
} else {
overviewPanel.setAlpha(finalOverviewPanelAlpha);
AlphaUpdateListener.updateVisibility(overviewPanel);
if (getPageIndicator() != null) {
getPageIndicator().setAlpha(finalPageIndicatorAlpha);
AlphaUpdateListener.updateVisibility(getPageIndicator());
}
setScaleX(mNewScale);
setScaleY(mNewScale);
setTranslationY(finalWorkspaceTranslationY);
}
return anim;
}
static class AlphaUpdateListener implements ValueAnimator.AnimatorUpdateListener, Animator.AnimatorListener {
View view;
public AlphaUpdateListener(View v) {
view = v;
}
@Override
public void onAnimationUpdate(ValueAnimator arg0) {
updateVisibility(view);
}
public static void updateVisibility(View view) {
// We want to avoid the extra layout pass by setting the views to GONE unless
// accessibility is on, in which case not setting them to GONE causes a glitch.
int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE;
if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) {
view.setVisibility(invisibleState);
} else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD
&& view.getVisibility() != VISIBLE) {
view.setVisibility(VISIBLE);
}
}
@Override
public void onAnimationCancel(Animator arg0) {
}
@Override
public void onAnimationEnd(Animator arg0) {
updateVisibility(view);
}
@Override
public void onAnimationRepeat(Animator arg0) {
}
@Override
public void onAnimationStart(Animator arg0) {
view.setVisibility(VISIBLE);
}
}
/**
* Used by the parent to get the content width to set the tab bar to
* @return
*/
public int getPageContentWidth() {
return mContentWidth;
}
@Override
protected void onPageEndMoving() {
super.onPageEndMoving();
mForceDrawAllChildrenNextFrame = true;
// We reset the save index when we change pages so that it will be recalculated on next
// rotation
mSaveInstanceStateItemIndex = -1;
}
private void onTransitionPrepare() {
mIsSwitchingState = true;
// Invalidate here to ensure that the pages are rendered during the state change transition.
invalidate();
enableHwLayersOnVisiblePages();
}
private void onTransitionEnd() {
mIsSwitchingState = false;
}
public Comparator<AppInfo> getComparatorForSortMode() {
switch (mSortMode) {
case Title:
return LauncherModel.getAppNameComparator();
case LaunchCount:
return LauncherModel.getAppLaunchCountComparator(mLauncher.getStats());
case InstallTime:
return LauncherModel.getAppInstallTimeComparator();
}
return LauncherModel.getAppNameComparator();
}
public void setSortMode(SortMode sortMode) {
if (mSortMode == sortMode) return;
mSortMode = sortMode;
Collections.sort(mFilteredApps, getComparatorForSortMode());
if (mContentType == ContentType.Applications) {
for (int i = 0; i < getChildCount(); i++) {
syncAppsPageItems(i, true);
}
}
}
public SortMode getSortMode() {
return mSortMode;
}
/*
* AllAppsView implementation
*/
public void setup(Launcher launcher, DragController dragController) {
mLauncher = launcher;
mDragController = dragController;
int sortMode = SettingsProvider.getIntCustomDefault(mLauncher, SettingsProvider.SETTINGS_UI_DRAWER_SORT_MODE, -1);
if (sortMode != -1) {
setSortMode(SortMode.getModeForValue(sortMode));
}
}
/**
* We should call thise method whenever the core data changes (mApps, mWidgets) so that we can
* appropriately determine when to invalidate the PagedView page data. In cases where the data
* has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the
* next onMeasure() pass, which will trigger an invalidatePageData() itself.
*/
private void invalidateOnDataChange() {
if (!isDataReady()) {
// The next layout pass will trigger data-ready if both widgets and apps are set, so
// request a layout to trigger the page data when ready.
requestLayout();
} else {
cancelAllTasks();
invalidatePageData();
}
}
public void setShowSystemApps(boolean show) {
if (show) {
mFilterApps |= FILTER_APPS_SYSTEM_FLAG;
} else {
mFilterApps &= ~FILTER_APPS_SYSTEM_FLAG;
}
filterApps();
}
public void setShowDownloadedApps(boolean show) {
if (show) {
mFilterApps |= FILTER_APPS_DOWNLOADED_FLAG;
} else {
mFilterApps &= ~FILTER_APPS_DOWNLOADED_FLAG;
}
filterApps();
}
public boolean getShowSystemApps() {
return (mFilterApps & FILTER_APPS_SYSTEM_FLAG) != 0;
}
public boolean getShowDownloadedApps() {
return (mFilterApps & FILTER_APPS_DOWNLOADED_FLAG) != 0;
}
public void setApps(ArrayList<AppInfo> list) {
if (!LauncherAppState.isDisableAllApps()) {
mApps = list;
filterAppsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
}
private void addAppsWithoutInvalidate(ArrayList<AppInfo> list) {
// We add it in place, in alphabetical order
int count = list.size();
for (int i = 0; i < count; ++i) {
AppInfo info = list.get(i);
int index = Collections.binarySearch(mApps, info, getComparatorForSortMode());
if (index < 0) {
mApps.add(-(index + 1), info);
}
}
}
public void addApps(ArrayList<AppInfo> list) {
if (!LauncherAppState.isDisableAllApps()) {
addAppsWithoutInvalidate(list);
filterAppsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
}
private int findAppByComponent(List<AppInfo> list, AppInfo item) {
ComponentName removeComponent = item.intent.getComponent();
int length = list.size();
for (int i = 0; i < length; ++i) {
AppInfo info = list.get(i);
if (info.intent.getComponent().equals(removeComponent)) {
return i;
}
}
return -1;
}
private void removeAppsWithoutInvalidate(ArrayList<AppInfo> list) {
// loop through all the apps and remove apps that have the same component
int length = list.size();
for (int i = 0; i < length; ++i) {
AppInfo info = list.get(i);
int removeIndex = findAppByComponent(mApps, info);
if (removeIndex > -1) {
mApps.remove(removeIndex);
}
}
}
public void removeApps(ArrayList<AppInfo> appInfos) {
if (!LauncherAppState.isDisableAllApps()) {
removeAppsWithoutInvalidate(appInfos);
filterAppsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
}
public void updateApps(ArrayList<AppInfo> list) {
// We remove and re-add the updated applications list because it's properties may have
// changed (ie. the title), and this will ensure that the items will be in their proper
// place in the list.
if (!LauncherAppState.isDisableAllApps()) {
removeAppsWithoutInvalidate(list);
addAppsWithoutInvalidate(list);
filterAppsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
}
private void updateProtectedAppsList(Context context) {
String protectedComponents = Settings.Secure.getString(context.getContentResolver(),
LauncherModel.SETTINGS_PROTECTED_COMPONENTS);
protectedComponents = protectedComponents == null ? "" : protectedComponents;
String [] flattened = protectedComponents.split("\\|");
mProtectedApps = new ArrayList<ComponentName>(flattened.length);
mProtectedPackages = new ArrayList<String>(flattened.length);
for (String flat : flattened) {
ComponentName cmp = ComponentName.unflattenFromString(flat);
if (cmp != null) {
mProtectedApps.add(cmp);
mProtectedPackages.add(cmp.getPackageName());
}
}
}
public void filterAppsWithoutInvalidate() {
updateProtectedAppsList(mLauncher);
mFilteredApps = new ArrayList<AppInfo>(mApps);
Iterator<AppInfo> iterator = mFilteredApps.iterator();
while (iterator.hasNext()) {
AppInfo appInfo = iterator.next();
boolean system = (appInfo.flags & AppInfo.DOWNLOADED_FLAG) == 0;
if (mProtectedApps.contains(appInfo.componentName) ||
(system && !getShowSystemApps()) ||
(!system && !getShowDownloadedApps())) {
iterator.remove();
}
}
Collections.sort(mFilteredApps, getComparatorForSortMode());
}
public void filterApps() {
filterAppsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
public void filterWidgetsWithoutInvalidate() {
updateProtectedAppsList(mLauncher);
mFilteredWidgets = new ArrayList<Object>(mWidgets);
Iterator<Object> iterator = mFilteredWidgets.iterator();
while (iterator.hasNext()) {
Object o = iterator.next();
String packageName;
if (o instanceof AppWidgetProviderInfo) {
AppWidgetProviderInfo widgetInfo = (AppWidgetProviderInfo) o;
if (widgetInfo.provider == null) {
continue;
}
packageName = widgetInfo.provider.getPackageName();
} else if (o instanceof ResolveInfo) {
ResolveInfo shortcut = (ResolveInfo) o;
packageName = shortcut.activityInfo.applicationInfo.packageName;
} else {
Log.w(TAG, "Unknown class in widgets list: " + o.getClass());
continue;
}
int flags;
try {
flags = AppInfo.initFlags(mPackageManager.getPackageInfo(packageName, 0));
} catch (NameNotFoundException e) {
flags = 0;
}
boolean system = (flags & AppInfo.DOWNLOADED_FLAG) == 0;
if (mProtectedPackages.contains(packageName) ||
(system && !getShowSystemApps()) ||
(!system && !getShowDownloadedApps())) {
iterator.remove();
}
}
}
public void filterWidgets() {
filterWidgetsWithoutInvalidate();
updatePageCountsAndInvalidateData();
}
public void reset() {
// If we have reset, then we should not continue to restore the previous state
mSaveInstanceStateItemIndex = -1;
if (mCurrentPage != 0) {
invalidatePageData(0);
}
}
private AppsCustomizeLayout getLayout() {
return (AppsCustomizeLayout) mLauncher.findViewById(R.id.apps_customize_pane);
}
public void surrender() {
cancelAllTasks();
}
@Override
public void iconPressed(PagedViewIcon icon) {
// Reset the previously pressed icon and store a reference to the pressed icon so that
// we can reset it on return to Launcher (in Launcher.onResume())
if (mPressedIcon != null) {
mPressedIcon.resetDrawableState();
}
mPressedIcon = icon;
}
public void resetDrawableState() {
if (mPressedIcon != null) {
mPressedIcon.resetDrawableState();
mPressedIcon = null;
}
}
/*
* We load an extra page on each side to prevent flashes from scrolling and loading of the
* widget previews in the background with the AsyncTasks.
*/
final static int sLookBehindPageCount = 2;
final static int sLookAheadPageCount = 2;
protected int getAssociatedLowerPageBound(int page) {
final int count = getChildCount();
int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1);
int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0);
return windowMinIndex;
}
protected int getAssociatedUpperPageBound(int page) {
final int count = getChildCount();
int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1);
int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1),
count - 1);
return windowMaxIndex;
}
protected String getCurrentPageDescription() {
int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
int stringId = R.string.default_scroll_format;
int count = 0;
if (mContentType == ContentType.Applications) {
stringId = R.string.apps_customize_apps_scroll_format;
count = mNumAppsPages;
} else if (mContentType == ContentType.Widgets) {
stringId = R.string.apps_customize_widgets_scroll_format;
count = mNumWidgetPages;
} else {
throw new RuntimeException("Invalid ContentType");
}
return String.format(getContext().getString(stringId), page + 1, count);
}
}
