| /* |
| * 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.animation.ValueAnimator; |
| import android.animation.ValueAnimator.AnimatorUpdateListener; |
| import android.content.Context; |
| import android.content.res.Resources; |
| 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.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.animation.AccelerateInterpolator; |
| import android.view.animation.DecelerateInterpolator; |
| 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; |
| |
| /** |
| * 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 { |
| |
| 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 FULL_GROW = 0; |
| private static final int PARTIAL_GROW = 1; |
| private static final int REORDER_ANIMATION_DURATION = 230; |
| private static final int ON_EXIT_CLOSE_DELAY = 800; |
| private int mMode = PARTIAL_GROW; |
| private boolean mRearrangeOnClose = false; |
| private FolderIcon mFolderIcon; |
| private int mMaxCountX; |
| private int mMaxCountY; |
| private Rect mNewSize = new Rect(); |
| private Rect mIconRect = new Rect(); |
| 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 TextView mFolderName; |
| private int mFolderNameHeight; |
| private Rect mHitRect = new Rect(); |
| private Rect mTempRect = new Rect(); |
| private boolean mFirstOpen = true; |
| private boolean mDragInProgress = false; |
| private boolean mDeleteFolderOnDropCompleted = false; |
| private boolean mSuppressFolderDeletion = false; |
| private boolean mItemAddedBackToSelf = false; |
| |
| private boolean mIsEditingName = false; |
| private InputMethodManager mInputMethodManager; |
| |
| private static String sDefaultFolderName; |
| private static String sHintText; |
| |
| /** |
| * 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(); |
| mMaxCountX = LauncherModel.getCellCountX(); |
| mMaxCountY = LauncherModel.getCellCountY(); |
| |
| mInputMethodManager = (InputMethodManager) |
| mContext.getSystemService(Context.INPUT_METHOD_SERVICE); |
| |
| Resources res = getResources(); |
| 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; |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mContent = (CellLayout) findViewById(R.id.folder_content); |
| mContent.setGridSize(0, 0); |
| mFolderName = (TextView) findViewById(R.id.folder_name); |
| |
| // 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.setCursorVisible(false); |
| 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(item.intent, item); |
| } |
| } |
| |
| public boolean onInterceptTouchEvent(MotionEvent ev) { |
| if (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| mFolderName.getHitRect(mHitRect); |
| if (mHitRect.contains((int) ev.getX(), (int) ev.getY()) && !mIsEditingName) { |
| startEditingFolderName(); |
| } |
| } |
| return false; |
| } |
| |
| public boolean onLongClick(View v) { |
| Object tag = v.getTag(); |
| if (tag instanceof ShortcutInfo) { |
| ShortcutInfo item = (ShortcutInfo) tag; |
| if (!v.isInTouchMode()) { |
| return false; |
| } |
| |
| 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; |
| mItemAddedBackToSelf = false; |
| } |
| return true; |
| } |
| |
| public boolean isEditingName() { |
| return mIsEditingName; |
| } |
| |
| public void startEditingFolderName() { |
| mFolderName.setHint(""); |
| mFolderName.setCursorVisible(true); |
| mIsEditingName = true; |
| } |
| |
| public void dismissEditingName() { |
| mInputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); |
| doneEditingFolderName(true); |
| } |
| |
| public void doneEditingFolderName(boolean commit) { |
| mFolderName.setHint(sHintText); |
| mInfo.setTitle(mFolderName.getText()); |
| LauncherModel.updateItemInDatabase(mLauncher, mInfo); |
| mFolderName.setCursorVisible(false); |
| mFolderName.clearFocus(); |
| 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; |
| } |
| |
| /** |
| * @return the FolderInfo object associated with this folder |
| */ |
| FolderInfo getInfo() { |
| return mInfo; |
| } |
| |
| void onOpen() { |
| // When the folder opens, we need to refresh the GridView's selection by |
| // forcing a layout |
| // TODO: find out if this is still necessary |
| mContent.requestLayout(); |
| } |
| |
| void onClose() { |
| DragLayer parent = (DragLayer) getParent(); |
| parent.removeView(Folder.this); |
| clearFocus(); |
| } |
| |
| void bind(FolderInfo info) { |
| mInfo = info; |
| ArrayList<ShortcutInfo> children = info.contents; |
| ArrayList<ShortcutInfo> overflow = new ArrayList<ShortcutInfo>(); |
| setupContentForNumItems(children.size()); |
| for (int i = 0; i < children.size(); i++) { |
| ShortcutInfo child = (ShortcutInfo) children.get(i); |
| if (!createAndAddShortcut(child)) { |
| overflow.add(child); |
| } |
| } |
| |
| // 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; |
| mInfo.addListener(this); |
| |
| if (!sDefaultFolderName.contentEquals(mInfo.title)) { |
| mFolderName.setText(mInfo.title); |
| } else { |
| mFolderName.setText(""); |
| } |
| } |
| |
| /** |
| * 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; |
| |
| DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); |
| |
| if (mMode == PARTIAL_GROW) { |
| setScaleX(0.8f); |
| setScaleY(0.8f); |
| setAlpha(0f); |
| } else { |
| mLauncher.getDragLayer().getDescendantRectRelativeToSelf(mFolderIcon, mIconRect); |
| lp.width = mIconRect.width(); |
| lp.height = mIconRect.height(); |
| lp.x = mIconRect.left; |
| lp.y = mIconRect.top; |
| mContent.setAlpha(0); |
| } |
| mState = STATE_SMALL; |
| } |
| |
| public void animateOpen() { |
| if (mFirstOpen) { |
| setLayerType(LAYER_TYPE_HARDWARE, null); |
| buildLayer(); |
| mFirstOpen = false; |
| } |
| |
| positionAndSizeAsIcon(); |
| |
| if (!(getParent() instanceof DragLayer)) return; |
| |
| ObjectAnimator oa; |
| DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); |
| |
| centerAboutIcon(); |
| if (mMode == PARTIAL_GROW) { |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1); |
| PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 1.0f); |
| PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 1.0f); |
| oa = ObjectAnimator.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); |
| } else { |
| PropertyValuesHolder width = PropertyValuesHolder.ofInt("width", mNewSize.width()); |
| PropertyValuesHolder height = PropertyValuesHolder.ofInt("height", mNewSize.height()); |
| PropertyValuesHolder x = PropertyValuesHolder.ofInt("x", mNewSize.left); |
| PropertyValuesHolder y = PropertyValuesHolder.ofInt("y", mNewSize.top); |
| oa = ObjectAnimator.ofPropertyValuesHolder(lp, width, height, x, y); |
| oa.addUpdateListener(new AnimatorUpdateListener() { |
| public void onAnimationUpdate(ValueAnimator animation) { |
| requestLayout(); |
| } |
| }); |
| |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 1.0f); |
| ObjectAnimator alphaOa = ObjectAnimator.ofPropertyValuesHolder(mContent, alpha); |
| alphaOa.setDuration(mExpandDuration); |
| alphaOa.setInterpolator(new AccelerateInterpolator(2.0f)); |
| alphaOa.start(); |
| } |
| |
| oa.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mState = STATE_ANIMATING; |
| } |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mState = STATE_OPEN; |
| setLayerType(LAYER_TYPE_NONE, null); |
| enableHardwareLayersForChildren(); |
| } |
| }); |
| oa.setDuration(mExpandDuration); |
| oa.start(); |
| } |
| |
| void enableHardwareLayersForChildren() { |
| ArrayList<View> children = getItemsInReadingOrder(); |
| for (View child: children) { |
| child.setLayerType(LAYER_TYPE_HARDWARE, null); |
| } |
| } |
| |
| public void animateClosed() { |
| if (!(getParent() instanceof DragLayer)) return; |
| setLayerType(LAYER_TYPE_HARDWARE, null); |
| buildLayer(); |
| |
| ObjectAnimator oa; |
| if (mMode == PARTIAL_GROW) { |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0); |
| PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", 0.9f); |
| PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", 0.9f); |
| oa = ObjectAnimator.ofPropertyValuesHolder(this, alpha, scaleX, scaleY); |
| } else { |
| DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams(); |
| |
| PropertyValuesHolder width = PropertyValuesHolder.ofInt("width", mIconRect.width()); |
| PropertyValuesHolder height = PropertyValuesHolder.ofInt("height", mIconRect.height()); |
| PropertyValuesHolder x = PropertyValuesHolder.ofInt("x", mIconRect.left); |
| PropertyValuesHolder y = PropertyValuesHolder.ofInt("y", mIconRect.top); |
| oa = ObjectAnimator.ofPropertyValuesHolder(lp, width, height, x, y); |
| oa.addUpdateListener(new AnimatorUpdateListener() { |
| public void onAnimationUpdate(ValueAnimator animation) { |
| requestLayout(); |
| } |
| }); |
| |
| PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); |
| ObjectAnimator alphaOa = ObjectAnimator.ofPropertyValuesHolder(mContent, alpha); |
| alphaOa.setDuration(mExpandDuration); |
| alphaOa.setInterpolator(new DecelerateInterpolator(2.0f)); |
| alphaOa.start(); |
| } |
| |
| oa.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| onClose(); |
| onCloseComplete(); |
| mState = STATE_SMALL; |
| } |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mState = STATE_ANIMATING; |
| } |
| }); |
| oa.setDuration(mExpandDuration); |
| 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 it is, we need to find the next available slot and assign |
| // it that position. This is an issue when upgrading from the old Folders implementation |
| // which could contain an unlimited number of items. |
| if (mContent.getChildAt(item.cellX, item.cellY) != null || |
| item.cellX < 0 || item.cellY < 0) { |
| if (!findAndSetEmptyCells(item)) { |
| return false; |
| } |
| } |
| |
| CellLayout.LayoutParams lp = |
| new CellLayout.LayoutParams(item.cellX, item.cellY, item.spanX, item.spanY); |
| boolean insert = false; |
| 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)) { |
| 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)) { |
| empty[0] = x; |
| empty[1] = y; |
| delay += delayAmount; |
| delayAmount *= 0.9; |
| } |
| } |
| } |
| } |
| } |
| |
| 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 (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 success) { |
| if (success) { |
| if (mDeleteFolderOnDropCompleted && !mItemAddedBackToSelf) { |
| 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; |
| mItemAddedBackToSelf = false; |
| mCurrentDragInfo = null; |
| mCurrentDragView = null; |
| mSuppressOnAdd = false; |
| } |
| |
| public void notifyDrop() { |
| if (mDragInProgress) { |
| mItemAddedBackToSelf = true; |
| } |
| } |
| |
| public boolean isDropEnabled() { |
| return true; |
| } |
| |
| public DropTarget getDropTargetDelegate(DragObject d) { |
| return null; |
| } |
| |
| private void setupContentDimension(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 && 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() >= mMaxCountX * mMaxCountY; |
| } |
| |
| 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); |
| |
| parent.getDescendantRectRelativeToSelf(mFolderIcon, mTempRect); |
| |
| int centerX = mTempRect.centerX(); |
| int centerY = mTempRect.centerY(); |
| int centeredLeft = centerX - width / 2; |
| int centeredTop = centerY - height / 2; |
| |
| // We first fetch the currently visible CellLayoutChildren |
| CellLayout currentPage = mLauncher.getWorkspace().getCurrentDropLayout(); |
| CellLayoutChildren boundingLayout = currentPage.getChildrenLayout(); |
| Rect bounds = new Rect(); |
| parent.getDescendantRectRelativeToSelf(boundingLayout, bounds); |
| |
| // 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); |
| int folderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() * |
| (1.0f * folderPivotX / width)); |
| int folderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() * |
| (1.0f * folderPivotY / height)); |
| mFolderIcon.setPivotX(folderIconPivotX); |
| mFolderIcon.setPivotY(folderIconPivotY); |
| |
| if (mMode == PARTIAL_GROW) { |
| lp.width = width; |
| lp.height = height; |
| lp.x = left; |
| lp.y = top; |
| } else { |
| mNewSize.set(left, top, left + width, top + height); |
| } |
| } |
| |
| private void setupContentForNumItems(int count) { |
| setupContentDimension(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(); |
| info.cellX = vacant[0]; |
| info.cellY = vacant[1]; |
| boolean insert = false; |
| mContent.addViewToCellLayout(v, insert ? 0 : -1, (int)info.id, lp, true); |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, mInfo.id, 0, |
| info.cellX, info.cellY); |
| } |
| mItemsInvalidated = true; |
| } |
| |
| public int getItemCount() { |
| return mContent.getChildrenLayout().getChildCount(); |
| } |
| |
| public View getItemAt(int index) { |
| return mContent.getChildrenLayout().getChildAt(index); |
| } |
| |
| private void onCloseComplete() { |
| if (mRearrangeOnClose) { |
| setupContentForNumItems(getItemCount()); |
| mRearrangeOnClose = false; |
| } |
| if (getItemCount() <= 1) { |
| if (!mDragInProgress && !mSuppressFolderDeletion) { |
| replaceFolderWithFinalItem(); |
| } else if (mDragInProgress) { |
| mDeleteFolderOnDropCompleted = true; |
| } |
| } |
| mSuppressFolderDeletion = false; |
| } |
| |
| private void replaceFolderWithFinalItem() { |
| ItemInfo finalItem = null; |
| |
| if (getItemCount() == 1) { |
| finalItem = mInfo.contents.get(0); |
| } |
| |
| // Remove the folder completely |
| CellLayout cellLayout = mLauncher.getCellLayout(mInfo.container, mInfo.screen); |
| cellLayout.removeView(mFolderIcon); |
| if (mFolderIcon instanceof DropTarget) { |
| mDragController.removeDropTarget((DropTarget) mFolderIcon); |
| } |
| mLauncher.removeFolder(mInfo); |
| |
| if (finalItem != null) { |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, finalItem, mInfo.container, |
| mInfo.screen, mInfo.cellX, mInfo.cellY); |
| } |
| LauncherModel.deleteItemFromDatabase(mLauncher, mInfo); |
| |
| // Add the last remaining child to the workspace in place of the folder |
| if (finalItem != null) { |
| View child = mLauncher.createShortcut(R.layout.application, cellLayout, |
| (ShortcutInfo) finalItem); |
| |
| mLauncher.getWorkspace().addInScreen(child, mInfo.container, mInfo.screen, mInfo.cellX, |
| mInfo.cellY, mInfo.spanX, mInfo.spanY); |
| } |
| } |
| |
| 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 |
| 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 { |
| mCurrentDragView.setVisibility(VISIBLE); |
| } |
| mItemsInvalidated = true; |
| setupContentDimension(getItemCount()); |
| mSuppressOnAdd = true; |
| } |
| mInfo.add(item); |
| } |
| |
| public void onAdd(ShortcutInfo item) { |
| mItemsInvalidated = true; |
| 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 (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() { |
| } |
| 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); |
| } |
| } |