| /* |
| * 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.launcher2; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.PointF; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.text.InputType; |
| import android.text.Selection; |
| import android.text.Spannable; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.ActionMode; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputMethodManager; |
| import android.widget.LinearLayout; |
| import android.widget.TextView; |
| |
| import com.android.launcher.R; |
| import com.android.launcher2.FolderInfo.FolderListener; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| |
| /** |
| * Represents a set of icons chosen by the user or generated by the system. |
| */ |
| public class Folder extends LinearLayout implements DragSource, View.OnClickListener, |
| View.OnLongClickListener, DropTarget, FolderListener, TextView.OnEditorActionListener, |
| View.OnFocusChangeListener { |
| private static final String TAG = "Launcher.Folder"; |
| |
| protected DragController mDragController; |
| protected Launcher mLauncher; |
| protected FolderInfo mInfo; |
| |
| static final int STATE_NONE = -1; |
| static final int STATE_SMALL = 0; |
| static final int STATE_ANIMATING = 1; |
| static final int STATE_OPEN = 2; |
| |
| private int mExpandDuration; |
| protected CellLayout mContent; |
| private final LayoutInflater mInflater; |
| private final IconCache mIconCache; |
| private int mState = STATE_NONE; |
| private static final int REORDER_ANIMATION_DURATION = 230; |
| private static final int ON_EXIT_CLOSE_DELAY = 800; |
| private boolean mRearrangeOnClose = false; |
| private FolderIcon mFolderIcon; |
| private int mMaxCountX; |
| private int mMaxCountY; |
| private int mMaxNumItems; |
| private ArrayList<View> mItemsInReadingOrder = new ArrayList<View>(); |
| private Drawable mIconDrawable; |
| boolean mItemsInvalidated = false; |
| private ShortcutInfo mCurrentDragInfo; |
| private View mCurrentDragView; |
| boolean mSuppressOnAdd = false; |
| private int[] mTargetCell = new int[2]; |
| private int[] mPreviousTargetCell = new int[2]; |
| private int[] mEmptyCell = new int[2]; |
| private Alarm mReorderAlarm = new Alarm(); |
| private Alarm mOnExitAlarm = new Alarm(); |
| private int mFolderNameHeight; |
| private Rect mTempRect = new Rect(); |
| private boolean mDragInProgress = false; |
| private boolean mDeleteFolderOnDropCompleted = false; |
| private boolean mSuppressFolderDeletion = false; |
| private boolean mItemAddedBackToSelfViaIcon = false; |
| FolderEditText mFolderName; |
| private float mFolderIconPivotX; |
| private float mFolderIconPivotY; |
| |
| private boolean mIsEditingName = false; |
| private InputMethodManager mInputMethodManager; |
| |
| private static String sDefaultFolderName; |
| private static String sHintText; |
| private ObjectAnimator mOpenCloseAnimator; |
| |
| private boolean mDestroyed; |
| |
| /** |
| * Used to inflate the Workspace from XML. |
| * |
| * @param context The application's context. |
| * @param attrs The attribtues set containing the Workspace's customization values. |
| */ |
| public Folder(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setAlwaysDrawnWithCacheEnabled(false); |
| mInflater = LayoutInflater.from(context); |
| mIconCache = ((LauncherApplication)context.getApplicationContext()).getIconCache(); |
| |
| Resources res = getResources(); |
| mMaxCountX = res.getInteger(R.integer.folder_max_count_x); |
| mMaxCountY = res.getInteger(R.integer.folder_max_count_y); |
| mMaxNumItems = res.getInteger(R.integer.folder_max_num_items); |
| if (mMaxCountX < 0 || mMaxCountY < 0 || mMaxNumItems < 0) { |
| mMaxCountX = LauncherModel.getCellCountX(); |
| mMaxCountY = LauncherModel.getCellCountY(); |
| mMaxNumItems = mMaxCountX * mMaxCountY; |
| } |
| |
| mInputMethodManager = (InputMethodManager) |
| getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| |
| mExpandDuration = res.getInteger(R.integer.config_folderAnimDuration); |
| |
| if (sDefaultFolderName == null) { |
| sDefaultFolderName = res.getString(R.string.folder_name); |
| } |
| if (sHintText == null) { |
| sHintText = res.getString(R.string.folder_hint_text); |
| } |
| mLauncher = (Launcher) context; |
| // We need this view to be focusable in touch mode so that when text editing of the folder |
| // name is complete, we have something to focus on, thus hiding the cursor and giving |
| // reliable behvior when clicking the text field (since it will always gain focus on click). |
| setFocusableInTouchMode(true); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mContent = (CellLayout) findViewById(R.id.folder_content); |
| mContent.setGridSize(0, 0); |
| mContent.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false); |
| mContent.setInvertIfRtl(true); |
| mFolderName = (FolderEditText) findViewById(R.id.folder_name); |
| mFolderName.setFolder(this); |
| mFolderName.setOnFocusChangeListener(this); |
| |
| // We find out how tall the text view wants to be (it is set to wrap_content), so that |
| // we can allocate the appropriate amount of space for it. |
| int measureSpec = MeasureSpec.UNSPECIFIED; |
| mFolderName.measure(measureSpec, measureSpec); |
| mFolderNameHeight = mFolderName.getMeasuredHeight(); |
| |
| // We disable action mode for now since it messes up the view on phones |
| mFolderName.setCustomSelectionActionModeCallback(mActionModeCallback); |
| mFolderName.setOnEditorActionListener(this); |
| mFolderName.setSelectAllOnFocus(true); |
| mFolderName.setInputType(mFolderName.getInputType() | |
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_FLAG_CAP_WORDS); |
| } |
| |
| private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { |
| public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| return false; |
| } |
| |
| public boolean onCreateActionMode(ActionMode mode, Menu menu) { |
| return false; |
| } |
| |
| public void onDestroyActionMode(ActionMode mode) { |
| } |
| |
| public boolean onPrepareActionMode(ActionMode mode, Menu menu) { |
| return false; |
| } |
| }; |
| |
| public void onClick(View v) { |
| Object tag = v.getTag(); |
| if (tag instanceof ShortcutInfo) { |
| // refactor this code from Folder |
| ShortcutInfo item = (ShortcutInfo) tag; |
| int[] pos = new int[2]; |
| v.getLocationOnScreen(pos); |
| item.intent.setSourceBounds(new Rect(pos[0], pos[1], |
| pos[0] + v.getWidth(), pos[1] + v.getHeight())); |
| |
| mLauncher.startActivitySafely(v, item.intent, item); |
| } |
| } |
| |
| public boolean onLongClick(View v) { |
| // Return if global dragging is not enabled |
| if (!mLauncher.isDraggingEnabled()) return true; |
| |
| Object tag = v.getTag(); |
| if (tag instanceof ShortcutInfo) { |
| ShortcutInfo item = (ShortcutInfo) tag; |
| if (!v.isInTouchMode()) { |
| return false; |
| } |
| |
| mLauncher.dismissFolderCling(null); |
| |
| mLauncher.getWorkspace().onDragStartedWithItem(v); |
| mLauncher.getWorkspace().beginDragShared(v, this); |
| mIconDrawable = ((TextView) v).getCompoundDrawables()[1]; |
| |
| mCurrentDragInfo = item; |
| mEmptyCell[0] = item.cellX; |
| mEmptyCell[1] = item.cellY; |
| mCurrentDragView = v; |
| |
| mContent.removeView(mCurrentDragView); |
| mInfo.remove(mCurrentDragInfo); |
| mDragInProgress = true; |
| mItemAddedBackToSelfViaIcon = false; |
| } |
| return true; |
| } |
| |
| public boolean isEditingName() { |
| return mIsEditingName; |
| } |
| |
| public void startEditingFolderName() { |
| mFolderName.setHint(""); |
| mIsEditingName = true; |
| } |
| |
| public void dismissEditingName() { |
| mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); |
| doneEditingFolderName(true); |
| } |
| |
| public void doneEditingFolderName(boolean commit) { |
| mFolderName.setHint(sHintText); |
| // Convert to a string here to ensure that no other state associated with the text field |
| // gets saved. |
| String newTitle = mFolderName.getText().toString(); |
| mInfo.setTitle(newTitle); |
| LauncherModel.updateItemInDatabase(mLauncher, mInfo); |
| |
| if (commit) { |
| sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, |
| String.format(getContext().getString(R.string.folder_renamed), newTitle)); |
| } |
| // In order to clear the focus from the text field, we set the focus on ourself. This |
| // ensures that every time the field is clicked, focus is gained, giving reliable behavior. |
| requestFocus(); |
| |
| Selection.setSelection((Spannable) mFolderName.getText(), 0, 0); |
| mIsEditingName = false; |
| } |
| |
| public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { |
| if (actionId == EditorInfo.IME_ACTION_DONE) { |
| dismissEditingName(); |
| return true; |
| } |
| return false; |
| } |
| |
| public View getEditTextRegion() { |
| return mFolderName; |
| } |
| |
| public Drawable getDragDrawable() { |
| return mIconDrawable; |
| } |
| |
| /** |
| * We need to handle touch events to prevent them from falling through to the workspace below. |
| */ |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| return true; |
| } |
| |
| public void setDragController(DragController dragController) { |
| mDragController = dragController; |
| } |
| |
| void setFolderIcon(FolderIcon icon) { |
| mFolderIcon = icon; |
| } |
| |
| @Override |
| public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { |
| // When the folder gets focus, we don't want to announce the list of items. |
| return true; |
| } |
| |
| /** |
| * @return the FolderInfo object associated with this folder |
| */ |
| FolderInfo getInfo() { |
| return mInfo; |
| } |
| |
| private class GridComparator implements Comparator<ShortcutInfo> { |
| int mNumCols; |
| public GridComparator(int numCols) { |
| mNumCols = numCols; |
| } |
| |
| @Override |
| public int compare(ShortcutInfo lhs, ShortcutInfo rhs) { |
| int lhIndex = lhs.cellY * mNumCols + lhs.cellX; |
| int rhIndex = rhs.cellY * mNumCols + rhs.cellX; |
| return (lhIndex - rhIndex); |
| } |
| } |
| |
| private void placeInReadingOrder(ArrayList<ShortcutInfo> items) { |
| int maxX = 0; |
| int count = items.size(); |
| for (int i = 0; i < count; i++) { |
| ShortcutInfo item = items.get(i); |
| if (item.cellX > maxX) { |
| maxX = item.cellX; |
| } |
| } |
| |
| GridComparator gridComparator = new GridComparator(maxX + 1); |
| Collections.sort(items, gridComparator); |
| final int countX = mContent.getCountX(); |
| for (int i = 0; i < count; i++) { |
| int x = i % countX; |
| int y = i / countX; |
| ShortcutInfo item = items.get(i); |
| item.cellX = x; |
| item.cellY = y; |
| } |
| } |
| |
| void bind(FolderInfo info) { |
| mInfo = info; |
| ArrayList<ShortcutInfo> children = info.contents; |
| ArrayList<ShortcutInfo> overflow = new ArrayList<ShortcutInfo>(); |
| setupContentForNumItems(children.size()); |
| placeInReadingOrder(children); |
| int count = 0; |
| for (int i = 0; i < children.size(); i++) { |
| ShortcutInfo child = (ShortcutInfo) children.get(i); |
| if (!createAndAddShortcut(child)) { |
| overflow.add(child); |
| } else { |
| count++; |
| } |
| } |
| |
| // We rearrange the items in case there are any empty gaps |
| setupContentForNumItems(count); |
| |
| // If our folder has too many items we prune them from the list. This is an issue |
| // when upgrading from the old Folders implementation which could contain an unlimited |
| // number of items. |
| for (ShortcutInfo item: overflow) { |
| mInfo.remove(item); |
| LauncherModel.deleteItemFromDatabase(mLauncher, item); |
| } |
| |
| mItemsInvalidated = true; |
| updateTextViewFocus(); |
| mInfo.addListener(this); |
| |
| if (!sDefaultFolderName.contentEquals(mInfo.title)) { |
| mFolderName.setText(mInfo.title); |
| } else { |
| mFolderName.setText(""); |
| } |
| updateItemLocationsInDatabase(); |
| } |
| |
| /** |
| * Creates a new UserFolder, inflated from R.layout.user_folder. |
| * |
| * @param context The application's context. |
| * |
| * @return A new UserFolder. |
| */ |
| static Folder fromXml(Context context) { |
| return (Folder) LayoutInflater.from(context).inflate(R.layout.user_folder, null); |
| } |
| |
| /** |
| * This method is intended to make the UserFolder to be visually identical in size and position |
| * to its associated FolderIcon. This allows for a seamless transition into the expanded state. |
| */ |
| private void positionAndSizeAsIcon() { |
| if (!(getParent() instanceof DragLayer)) return; |
| setScaleX(0.8f); |
| setScaleY(0.8f); |
| setAlpha(0f); |
| mState = STATE_SMALL; |
| } |
| |
| public void animateOpen() { |
| positionAndSizeAsIcon(); |
| |
| if (!(getParent() instanceof DragLayer)) return; |
| centerAboutIcon(); |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1); |
| PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1.0f); |
| PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1.0f); |
| final ObjectAnimator oa = mOpenCloseAnimator = |
| LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); |
| |
| oa.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, |
| String.format(getContext().getString(R.string.folder_opened), |
| mContent.getCountX(), mContent.getCountY())); |
| mState = STATE_ANIMATING; |
| } |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mState = STATE_OPEN; |
| setLayerType(LAYER_TYPE_NONE, null); |
| Cling cling = mLauncher.showFirstRunFoldersCling(); |
| if (cling != null) { |
| cling.bringToFront(); |
| } |
| setFocusOnFirstChild(); |
| setAlpha(1); |
| setScaleX(1); |
| setScaleY(1); |
| } |
| }); |
| oa.setDuration(mExpandDuration); |
| setLayerType(LAYER_TYPE_HARDWARE, null); |
| oa.start(); |
| } |
| |
| private void sendCustomAccessibilityEvent(int type, String text) { |
| AccessibilityManager accessibilityManager = (AccessibilityManager) |
| getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); |
| if (accessibilityManager.isEnabled()) { |
| AccessibilityEvent event = AccessibilityEvent.obtain(type); |
| onInitializeAccessibilityEvent(event); |
| event.getText().add(text); |
| accessibilityManager.sendAccessibilityEvent(event); |
| } |
| } |
| |
| private void setFocusOnFirstChild() { |
| View firstChild = mContent.getChildAt(0, 0); |
| if (firstChild != null) { |
| firstChild.requestFocus(); |
| } |
| } |
| |
| public void animateClosed() { |
| if (!(getParent() instanceof DragLayer)) return; |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0); |
| PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.9f); |
| PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 0.9f); |
| final ObjectAnimator oa = mOpenCloseAnimator = |
| LauncherAnimUtils.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); |
| |
| oa.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| onCloseComplete(); |
| setLayerType(LAYER_TYPE_NONE, null); |
| mState = STATE_SMALL; |
| } |
| @Override |
| public void onAnimationStart(Animator animation) { |
| sendCustomAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED, |
| getContext().getString(R.string.folder_closed)); |
| mState = STATE_ANIMATING; |
| } |
| }); |
| oa.setDuration(mExpandDuration); |
| setLayerType(LAYER_TYPE_HARDWARE, null); |
| oa.start(); |
| } |
| |
| void notifyDataSetChanged() { |
| // recreate all the children if the data set changes under us. We may want to do this more |
| // intelligently (ie just removing the views that should no longer exist) |
| mContent.removeAllViewsInLayout(); |
| bind(mInfo); |
| } |
| |
| public boolean acceptDrop(DragObject d) { |
| final ItemInfo item = (ItemInfo) d.dragInfo; |
| final int itemType = item.itemType; |
| return ((itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || |
| itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) && |
| !isFull()); |
| } |
| |
| protected boolean findAndSetEmptyCells(ShortcutInfo item) { |
| int[] emptyCell = new int[2]; |
| if (mContent.findCellForSpan(emptyCell, item.spanX, item.spanY)) { |
| item.cellX = emptyCell[0]; |
| item.cellY = emptyCell[1]; |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| protected boolean createAndAddShortcut(ShortcutInfo item) { |
| final TextView textView = |
| (TextView) mInflater.inflate(R.layout.application, this, false); |
| textView.setCompoundDrawablesWithIntrinsicBounds(null, |
| new FastBitmapDrawable(item.getIcon(mIconCache)), null, null); |
| textView.setText(item.title); |
| textView.setTag(item); |
| |
| textView.setOnClickListener(this); |
| textView.setOnLongClickListener(this); |
| |
| // We need to check here to verify that the given item's location isn't already occupied |
| // by another item. |
| if (mContent.getChildAt(item.cellX, item.cellY) != null || item.cellX < 0 || item.cellY < 0 |
| || item.cellX >= mContent.getCountX() || item.cellY >= mContent.getCountY()) { |
| // This shouldn't happen, log it. |
| Log.e(TAG, "Folder order not properly persisted during bind"); |
| if (!findAndSetEmptyCells(item)) { |
| return false; |
| } |
| } |
| |
| CellLayout.LayoutParams lp = |
| new CellLayout.LayoutParams(item.cellX, item.cellY, item.spanX, item.spanY); |
| boolean insert = false; |
| textView.setOnKeyListener(new FolderKeyEventListener()); |
| mContent.addViewToCellLayout(textView, insert ? 0 : -1, (int)item.id, lp, true); |
| return true; |
| } |
| |
| public void onDragEnter(DragObject d) { |
| mPreviousTargetCell[0] = -1; |
| mPreviousTargetCell[1] = -1; |
| mOnExitAlarm.cancelAlarm(); |
| } |
| |
| OnAlarmListener mReorderAlarmListener = new OnAlarmListener() { |
| public void onAlarm(Alarm alarm) { |
| realTimeReorder(mEmptyCell, mTargetCell); |
| } |
| }; |
| |
| boolean readingOrderGreaterThan(int[] v1, int[] v2) { |
| if (v1[1] > v2[1] || (v1[1] == v2[1] && v1[0] > v2[0])) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| private void realTimeReorder(int[] empty, int[] target) { |
| boolean wrap; |
| int startX; |
| int endX; |
| int startY; |
| int delay = 0; |
| float delayAmount = 30; |
| if (readingOrderGreaterThan(target, empty)) { |
| wrap = empty[0] >= mContent.getCountX() - 1; |
| startY = wrap ? empty[1] + 1 : empty[1]; |
| for (int y = startY; y <= target[1]; y++) { |
| startX = y == empty[1] ? empty[0] + 1 : 0; |
| endX = y < target[1] ? mContent.getCountX() - 1 : target[0]; |
| for (int x = startX; x <= endX; x++) { |
| View v = mContent.getChildAt(x,y); |
| if (mContent.animateChildToPosition(v, empty[0], empty[1], |
| REORDER_ANIMATION_DURATION, delay, true, true)) { |
| empty[0] = x; |
| empty[1] = y; |
| delay += delayAmount; |
| delayAmount *= 0.9; |
| } |
| } |
| } |
| } else { |
| wrap = empty[0] == 0; |
| startY = wrap ? empty[1] - 1 : empty[1]; |
| for (int y = startY; y >= target[1]; y--) { |
| startX = y == empty[1] ? empty[0] - 1 : mContent.getCountX() - 1; |
| endX = y > target[1] ? 0 : target[0]; |
| for (int x = startX; x >= endX; x--) { |
| View v = mContent.getChildAt(x,y); |
| if (mContent.animateChildToPosition(v, empty[0], empty[1], |
| REORDER_ANIMATION_DURATION, delay, true, true)) { |
| empty[0] = x; |
| empty[1] = y; |
| delay += delayAmount; |
| delayAmount *= 0.9; |
| } |
| } |
| } |
| } |
| } |
| |
| public boolean isLayoutRtl() { |
| return (getLayoutDirection() == LAYOUT_DIRECTION_RTL); |
| } |
| |
| public void onDragOver(DragObject d) { |
| float[] r = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, null); |
| mTargetCell = mContent.findNearestArea((int) r[0], (int) r[1], 1, 1, mTargetCell); |
| |
| if (isLayoutRtl()) { |
| mTargetCell[0] = mContent.getCountX() - mTargetCell[0] - 1; |
| } |
| |
| if (mTargetCell[0] != mPreviousTargetCell[0] || mTargetCell[1] != mPreviousTargetCell[1]) { |
| mReorderAlarm.cancelAlarm(); |
| mReorderAlarm.setOnAlarmListener(mReorderAlarmListener); |
| mReorderAlarm.setAlarm(150); |
| mPreviousTargetCell[0] = mTargetCell[0]; |
| mPreviousTargetCell[1] = mTargetCell[1]; |
| } |
| } |
| |
| // This is used to compute the visual center of the dragView. The idea is that |
| // the visual center represents the user's interpretation of where the item is, and hence |
| // is the appropriate point to use when determining drop location. |
| private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, |
| DragView dragView, float[] recycle) { |
| float res[]; |
| if (recycle == null) { |
| res = new float[2]; |
| } else { |
| res = recycle; |
| } |
| |
| // These represent the visual top and left of drag view if a dragRect was provided. |
| // If a dragRect was not provided, then they correspond to the actual view left and |
| // top, as the dragRect is in that case taken to be the entire dragView. |
| // R.dimen.dragViewOffsetY. |
| int left = x - xOffset; |
| int top = y - yOffset; |
| |
| // In order to find the visual center, we shift by half the dragRect |
| res[0] = left + dragView.getDragRegion().width() / 2; |
| res[1] = top + dragView.getDragRegion().height() / 2; |
| |
| return res; |
| } |
| |
| OnAlarmListener mOnExitAlarmListener = new OnAlarmListener() { |
| public void onAlarm(Alarm alarm) { |
| completeDragExit(); |
| } |
| }; |
| |
| public void completeDragExit() { |
| mLauncher.closeFolder(); |
| mCurrentDragInfo = null; |
| mCurrentDragView = null; |
| mSuppressOnAdd = false; |
| mRearrangeOnClose = true; |
| } |
| |
| public void onDragExit(DragObject d) { |
| // We only close the folder if this is a true drag exit, ie. not because a drop |
| // has occurred above the folder. |
| if (!d.dragComplete) { |
| mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener); |
| mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY); |
| } |
| mReorderAlarm.cancelAlarm(); |
| } |
| |
| public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, |
| boolean success) { |
| if (success) { |
| if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelfViaIcon) { |
| replaceFolderWithFinalItem(); |
| } |
| } else { |
| // The drag failed, we need to return the item to the folder |
| mFolderIcon.onDrop(d); |
| |
| // We're going to trigger a "closeFolder" which may occur before this item has |
| // been added back to the folder -- this could cause the folder to be deleted |
| if (mOnExitAlarm.alarmPending()) { |
| mSuppressFolderDeletion = true; |
| } |
| } |
| |
| if (target != this) { |
| if (mOnExitAlarm.alarmPending()) { |
| mOnExitAlarm.cancelAlarm(); |
| completeDragExit(); |
| } |
| } |
| mDeleteFolderOnDropCompleted = false; |
| mDragInProgress = false; |
| mItemAddedBackToSelfViaIcon = false; |
| mCurrentDragInfo = null; |
| mCurrentDragView = null; |
| mSuppressOnAdd = false; |
| |
| // Reordering may have occured, and we need to save the new item locations. We do this once |
| // at the end to prevent unnecessary database operations. |
| updateItemLocationsInDatabase(); |
| } |
| |
| @Override |
| public boolean supportsFlingToDelete() { |
| return true; |
| } |
| |
| public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { |
| // Do nothing |
| } |
| |
| @Override |
| public void onFlingToDeleteCompleted() { |
| // Do nothing |
| } |
| |
| private void updateItemLocationsInDatabase() { |
| ArrayList<View> list = getItemsInReadingOrder(); |
| for (int i = 0; i < list.size(); i++) { |
| View v = list.get(i); |
| ItemInfo info = (ItemInfo) v.getTag(); |
| LauncherModel.moveItemInDatabase(mLauncher, info, mInfo.id, 0, |
| info.cellX, info.cellY); |
| } |
| } |
| |
| public void notifyDrop() { |
| if (mDragInProgress) { |
| mItemAddedBackToSelfViaIcon = true; |
| } |
| } |
| |
| public boolean isDropEnabled() { |
| return true; |
| } |
| |
| public DropTarget getDropTargetDelegate(DragObject d) { |
| return null; |
| } |
| |
| private void setupContentDimensions(int count) { |
| ArrayList<View> list = getItemsInReadingOrder(); |
| |
| int countX = mContent.getCountX(); |
| int countY = mContent.getCountY(); |
| boolean done = false; |
| |
| while (!done) { |
| int oldCountX = countX; |
| int oldCountY = countY; |
| if (countX * countY < count) { |
| // Current grid is too small, expand it |
| if ((countX <= countY || countY == mMaxCountY) && countX < mMaxCountX) { |
| countX++; |
| } else if (countY < mMaxCountY) { |
| countY++; |
| } |
| if (countY == 0) countY++; |
| } else if ((countY - 1) * countX >= count && countY >= countX) { |
| countY = Math.max(0, countY - 1); |
| } else if ((countX - 1) * countY >= count) { |
| countX = Math.max(0, countX - 1); |
| } |
| done = countX == oldCountX && countY == oldCountY; |
| } |
| mContent.setGridSize(countX, countY); |
| arrangeChildren(list); |
| } |
| |
| public boolean isFull() { |
| return getItemCount() >= mMaxNumItems; |
| } |
| |
| private void centerAboutIcon() { |
| DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); |
| |
| int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); |
| int height = getPaddingTop() + getPaddingBottom() + mContent.getDesiredHeight() |
| + mFolderNameHeight; |
| DragLayer parent = (DragLayer) mLauncher.findViewById(R.id.drag_layer); |
| |
| float scale = parent.getDescendantRectRelativeToSelf(mFolderIcon, mTempRect); |
| |
| int centerX = (int) (mTempRect.left + mTempRect.width() * scale / 2); |
| int centerY = (int) (mTempRect.top + mTempRect.height() * scale / 2); |
| int centeredLeft = centerX - width / 2; |
| int centeredTop = centerY - height / 2; |
| |
| int currentPage = mLauncher.getWorkspace().getCurrentPage(); |
| // In case the workspace is scrolling, we need to use the final scroll to compute |
| // the folders bounds. |
| mLauncher.getWorkspace().setFinalScrollForPageChange(currentPage); |
| // We first fetch the currently visible CellLayoutChildren |
| CellLayout currentLayout = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPage); |
| ShortcutAndWidgetContainer boundingLayout = currentLayout.getShortcutsAndWidgets(); |
| Rect bounds = new Rect(); |
| parent.getDescendantRectRelativeToSelf(boundingLayout, bounds); |
| // We reset the workspaces scroll |
| mLauncher.getWorkspace().resetFinalScrollForPageChange(currentPage); |
| |
| // We need to bound the folder to the currently visible CellLayoutChildren |
| int left = Math.min(Math.max(bounds.left, centeredLeft), |
| bounds.left + bounds.width() - width); |
| int top = Math.min(Math.max(bounds.top, centeredTop), |
| bounds.top + bounds.height() - height); |
| // If the folder doesn't fit within the bounds, center it about the desired bounds |
| if (width >= bounds.width()) { |
| left = bounds.left + (bounds.width() - width) / 2; |
| } |
| if (height >= bounds.height()) { |
| top = bounds.top + (bounds.height() - height) / 2; |
| } |
| |
| int folderPivotX = width / 2 + (centeredLeft - left); |
| int folderPivotY = height / 2 + (centeredTop - top); |
| setPivotX(folderPivotX); |
| setPivotY(folderPivotY); |
| mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * |
| (1.0f * folderPivotX / width)); |
| mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * |
| (1.0f * folderPivotY / height)); |
| |
| lp.width = width; |
| lp.height = height; |
| lp.x = left; |
| lp.y = top; |
| } |
| |
| float getPivotXForIconAnimation() { |
| return mFolderIconPivotX; |
| } |
| float getPivotYForIconAnimation() { |
| return mFolderIconPivotY; |
| } |
| |
| private void setupContentForNumItems(int count) { |
| setupContentDimensions(count); |
| |
| DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); |
| if (lp == null) { |
| lp = new DragLayer.LayoutParams(0, 0); |
| lp.customPosition = true; |
| setLayoutParams(lp); |
| } |
| centerAboutIcon(); |
| } |
| |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth(); |
| int height = getPaddingTop() + getPaddingBottom() + mContent.getDesiredHeight() |
| + mFolderNameHeight; |
| |
| int contentWidthSpec = MeasureSpec.makeMeasureSpec(mContent.getDesiredWidth(), |
| MeasureSpec.EXACTLY); |
| int contentHeightSpec = MeasureSpec.makeMeasureSpec(mContent.getDesiredHeight(), |
| MeasureSpec.EXACTLY); |
| mContent.measure(contentWidthSpec, contentHeightSpec); |
| |
| mFolderName.measure(contentWidthSpec, |
| MeasureSpec.makeMeasureSpec(mFolderNameHeight, MeasureSpec.EXACTLY)); |
| setMeasuredDimension(width, height); |
| } |
| |
| private void arrangeChildren(ArrayList<View> list) { |
| int[] vacant = new int[2]; |
| if (list == null) { |
| list = getItemsInReadingOrder(); |
| } |
| mContent.removeAllViews(); |
| |
| for (int i = 0; i < list.size(); i++) { |
| View v = list.get(i); |
| mContent.getVacantCell(vacant, 1, 1); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams(); |
| lp.cellX = vacant[0]; |
| lp.cellY = vacant[1]; |
| ItemInfo info = (ItemInfo) v.getTag(); |
| if (info.cellX != vacant[0] || info.cellY != vacant[1]) { |
| info.cellX = vacant[0]; |
| info.cellY = vacant[1]; |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, mInfo.id, 0, |
| info.cellX, info.cellY); |
| } |
| boolean insert = false; |
| mContent.addViewToCellLayout(v, insert ? 0 : -1, (int)info.id, lp, true); |
| } |
| mItemsInvalidated = true; |
| } |
| |
| public int getItemCount() { |
| return mContent.getShortcutsAndWidgets().getChildCount(); |
| } |
| |
| public View getItemAt(int index) { |
| return mContent.getShortcutsAndWidgets().getChildAt(index); |
| } |
| |
| private void onCloseComplete() { |
| DragLayer parent = (DragLayer) getParent(); |
| if (parent != null) { |
| parent.removeView(this); |
| } |
| mDragController.removeDropTarget((DropTarget) this); |
| clearFocus(); |
| mFolderIcon.requestFocus(); |
| |
| if (mRearrangeOnClose) { |
| setupContentForNumItems(getItemCount()); |
| mRearrangeOnClose = false; |
| } |
| if (getItemCount() <= 1) { |
| if (!mDragInProgress && !mSuppressFolderDeletion) { |
| replaceFolderWithFinalItem(); |
| } else if (mDragInProgress) { |
| mDeleteFolderOnDropCompleted = true; |
| } |
| } |
| mSuppressFolderDeletion = false; |
| } |
| |
| private void replaceFolderWithFinalItem() { |
| // Add the last remaining child to the workspace in place of the folder |
| Runnable onCompleteRunnable = new Runnable() { |
| @Override |
| public void run() { |
| CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, mInfo.screen); |
| |
| View child = null; |
| // Move the item from the folder to the workspace, in the position of the folder |
| if (getItemCount() == 1) { |
| ShortcutInfo finalItem = mInfo.contents.get(0); |
| child = mLauncher.createShortcut(R.layout.application, cellLayout, |
| finalItem); |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, |
| mInfo.screen, mInfo.cellX, mInfo.cellY); |
| } |
| if (getItemCount() <= 1) { |
| // Remove the folder |
| LauncherModel.deleteItemFromDatabase(mLauncher, mInfo); |
| cellLayout.removeView(mFolderIcon); |
| if (mFolderIcon instanceof DropTarget) { |
| mDragController.removeDropTarget((DropTarget) mFolderIcon); |
| } |
| mLauncher.removeFolder(mInfo); |
| } |
| // We add the child after removing the folder to prevent both from existing at |
| // the same time in the CellLayout. |
| if (child != null) { |
| mLauncher.getWorkspace().addInScreen(child, mInfo.container, mInfo.screen, |
| mInfo.cellX, mInfo.cellY, mInfo.spanX, mInfo.spanY); |
| } |
| } |
| }; |
| View finalChild = getItemAt(0); |
| if (finalChild != null) { |
| mFolderIcon.performDestroyAnimation(finalChild, onCompleteRunnable); |
| } |
| mDestroyed = true; |
| } |
| |
| boolean isDestroyed() { |
| return mDestroyed; |
| } |
| |
| // This method keeps track of the last item in the folder for the purposes |
| // of keyboard focus |
| private void updateTextViewFocus() { |
| View lastChild = getItemAt(getItemCount() - 1); |
| getItemAt(getItemCount() - 1); |
| if (lastChild != null) { |
| mFolderName.setNextFocusDownId(lastChild.getId()); |
| mFolderName.setNextFocusRightId(lastChild.getId()); |
| mFolderName.setNextFocusLeftId(lastChild.getId()); |
| mFolderName.setNextFocusUpId(lastChild.getId()); |
| } |
| } |
| |
| public void onDrop(DragObject d) { |
| ShortcutInfo item; |
| if (d.dragInfo instanceof ApplicationInfo) { |
| // Came from all apps -- make a copy |
| item = ((ApplicationInfo) d.dragInfo).makeShortcut(); |
| item.spanX = 1; |
| item.spanY = 1; |
| } else { |
| item = (ShortcutInfo) d.dragInfo; |
| } |
| // Dragged from self onto self, currently this is the only path possible, however |
| // we keep this as a distinct code path. |
| if (item == mCurrentDragInfo) { |
| ShortcutInfo si = (ShortcutInfo) mCurrentDragView.getTag(); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) mCurrentDragView.getLayoutParams(); |
| si.cellX = lp.cellX = mEmptyCell[0]; |
| si.cellX = lp.cellY = mEmptyCell[1]; |
| mContent.addViewToCellLayout(mCurrentDragView, -1, (int)item.id, lp, true); |
| if (d.dragView.hasDrawn()) { |
| mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, mCurrentDragView); |
| } else { |
| d.deferDragViewCleanupPostAnimation = false; |
| mCurrentDragView.setVisibility(VISIBLE); |
| } |
| mItemsInvalidated = true; |
| setupContentDimensions(getItemCount()); |
| mSuppressOnAdd = true; |
| } |
| mInfo.add(item); |
| } |
| |
| public void onAdd(ShortcutInfo item) { |
| mItemsInvalidated = true; |
| // If the item was dropped onto this open folder, we have done the work associated |
| // with adding the item to the folder, as indicated by mSuppressOnAdd being set |
| if (mSuppressOnAdd) return; |
| if (!findAndSetEmptyCells(item)) { |
| // The current layout is full, can we expand it? |
| setupContentForNumItems(getItemCount() + 1); |
| findAndSetEmptyCells(item); |
| } |
| createAndAddShortcut(item); |
| LauncherModel.addOrMoveItemInDatabase( |
| mLauncher, item, mInfo.id, 0, item.cellX, item.cellY); |
| } |
| |
| public void onRemove(ShortcutInfo item) { |
| mItemsInvalidated = true; |
| // If this item is being dragged from this open folder, we have already handled |
| // the work associated with removing the item, so we don't have to do anything here. |
| if (item == mCurrentDragInfo) return; |
| View v = getViewForInfo(item); |
| mContent.removeView(v); |
| if (mState == STATE_ANIMATING) { |
| mRearrangeOnClose = true; |
| } else { |
| setupContentForNumItems(getItemCount()); |
| } |
| if (getItemCount() <= 1) { |
| replaceFolderWithFinalItem(); |
| } |
| } |
| |
| private View getViewForInfo(ShortcutInfo item) { |
| for (int j = 0; j < mContent.getCountY(); j++) { |
| for (int i = 0; i < mContent.getCountX(); i++) { |
| View v = mContent.getChildAt(i, j); |
| if (v.getTag() == item) { |
| return v; |
| } |
| } |
| } |
| return null; |
| } |
| |
| public void onItemsChanged() { |
| updateTextViewFocus(); |
| } |
| |
| public void onTitleChanged(CharSequence title) { |
| } |
| |
| public ArrayList<View> getItemsInReadingOrder() { |
| return getItemsInReadingOrder(true); |
| } |
| |
| public ArrayList<View> getItemsInReadingOrder(boolean includeCurrentDragItem) { |
| if (mItemsInvalidated) { |
| mItemsInReadingOrder.clear(); |
| for (int j = 0; j < mContent.getCountY(); j++) { |
| for (int i = 0; i < mContent.getCountX(); i++) { |
| View v = mContent.getChildAt(i, j); |
| if (v != null) { |
| ShortcutInfo info = (ShortcutInfo) v.getTag(); |
| if (info != mCurrentDragInfo || includeCurrentDragItem) { |
| mItemsInReadingOrder.add(v); |
| } |
| } |
| } |
| } |
| mItemsInvalidated = false; |
| } |
| return mItemsInReadingOrder; |
| } |
| |
| public void getLocationInDragLayer(int[] loc) { |
| mLauncher.getDragLayer().getLocationInDragLayer(this, loc); |
| } |
| |
| public void onFocusChange(View v, boolean hasFocus) { |
| if (v == mFolderName && hasFocus) { |
| startEditingFolderName(); |
| } |
| } |
| } |
