diff options
Diffstat (limited to 'core/java/android/widget/ZoomRingController.java')
| -rw-r--r-- | core/java/android/widget/ZoomRingController.java | 462 |
1 files changed, 173 insertions, 289 deletions
diff --git a/core/java/android/widget/ZoomRingController.java b/core/java/android/widget/ZoomRingController.java index 19f66a0..2e97fda 100644 --- a/core/java/android/widget/ZoomRingController.java +++ b/core/java/android/widget/ZoomRingController.java @@ -33,7 +33,6 @@ import android.provider.Settings; 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.ViewConfiguration; @@ -48,36 +47,30 @@ import android.view.animation.DecelerateInterpolator; /** * TODO: Docs - * + * * If you are using this with a custom View, please call * {@link #setVisible(boolean) setVisible(false)} from the * {@link View#onDetachedFromWindow}. - * + * * @hide */ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, View.OnTouchListener, View.OnKeyListener { - + private static final int ZOOM_RING_RADIUS_INSET = 24; private static final int ZOOM_RING_RECENTERING_DURATION = 500; private static final String TAG = "ZoomRing"; - public static final boolean USE_OLD_ZOOM = false; - static int getZoomType(Context context) { - return Settings.System.getInt(context.getContentResolver(), "zoom", 1); - } + public static final boolean USE_OLD_ZOOM = false; public static boolean useOldZoom(Context context) { - return getZoomType(context) == 0; + return Settings.System.getInt(context.getContentResolver(), "zoom", 1) == 0; } - private static boolean useThisZoom(Context context) { - return getZoomType(context) == 1; - } - + private static final int ZOOM_CONTROLS_TIMEOUT = (int) ViewConfiguration.getZoomControlsTimeout(); - + // TODO: move these to ViewConfiguration or re-use existing ones // TODO: scale px values based on latest from ViewConfiguration private static final int SECOND_TAP_TIMEOUT = 500; @@ -87,12 +80,12 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, private static final int MAX_INITIATE_PAN_GAP = 10; // TODO view config private static final int INITIATE_PAN_DELAY = 300; - + private static final String SETTING_NAME_SHOWN_TOAST = "shown_zoom_ring_toast"; - + private Context mContext; private WindowManager mWindowManager; - + /** * The view that is being zoomed by this zoom ring. */ @@ -118,15 +111,15 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, /** * The {@link #mTouchTargetView}'s location in window, set on touch down. */ - private int[] mTouchTargetLocationInWindow = new int[2]; + private int[] mTouchTargetLocationInWindow = new int[2]; /** * If the zoom ring is dismissed but the user is still in a touch * interaction, we set this to true. This will ignore all touch events until * up/cancel, and then set the owner's touch listener to null. */ private boolean mReleaseTouchListenerOnUp; - - + + /* * Tap-drag is an interaction where the user first taps and then (quickly) * does the clockwise or counter-clockwise drag. In reality, this is: (down, @@ -139,40 +132,30 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, */ private int mTapDragStartX; private int mTapDragStartY; - + private static final int TOUCH_MODE_IDLE = 0; private static final int TOUCH_MODE_WAITING_FOR_SECOND_TAP = 1; private static final int TOUCH_MODE_WAITING_FOR_TAP_DRAG_MOVEMENT = 2; private static final int TOUCH_MODE_FORWARDING_FOR_TAP_DRAG = 3; private int mTouchMode; - + private boolean mIsZoomRingVisible; - + private ZoomRing mZoomRing; private int mZoomRingWidth; private int mZoomRingHeight; - + /** Invokes panning of owner view if the zoom ring is touching an edge. */ private Panner mPanner; private long mTouchingEdgeStartTime; private boolean mPanningEnabledForThisInteraction; - - /** - * When the finger moves the zoom ring to an edge, this is the horizontal - * accumulator for how much the finger has moved off of its original touch - * point on the zoom ring (OOB = out-of-bounds). If < 0, the finger has - * moved that many px to the left of its original touch point on the ring. - */ - private int mMovingZoomRingOobX; - /** Vertical accumulator, see {@link #mMovingZoomRingOobX} */ - private int mMovingZoomRingOobY; - + private ImageView mPanningArrows; private Animation mPanningArrowsEnterAnimation; private Animation mPanningArrowsExitAnimation; - + private Rect mTempRect = new Rect(); - + private OnZoomListener mCallback; private ViewConfiguration mViewConfig; @@ -188,7 +171,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, * for the container's layout params. */ private int mCenteredContainerY = Integer.MIN_VALUE; - + /** * Scroller used to re-center the zoom ring if the user had dragged it to a * corner and then double-taps any point on the owner view (the owner view @@ -198,7 +181,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, * The (x,y) of the scroller is the (x,y) of the container's layout params. */ private Scroller mScroller; - + /** * When showing the zoom ring, we add the view as a new window. However, * there is logic that needs to know the size of the zoom ring which is @@ -206,7 +189,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, * the UI thread so it will be exceuted AFTER the layout. This is the logic. */ private Runnable mPostedVisibleInitializer; - + /** * Only touch from the main thread. */ @@ -216,29 +199,23 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, private IntentFilter mConfigurationChangedFilter = new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED); - + private BroadcastReceiver mConfigurationChangedReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (!mIsZoomRingVisible) return; - + mHandler.removeMessages(MSG_POST_CONFIGURATION_CHANGED); mHandler.sendEmptyMessage(MSG_POST_CONFIGURATION_CHANGED); } }; - + /** Keeps the scroller going (or starts it). */ private static final int MSG_SCROLLER_TICK = 1; /** When configuration changes, this is called after the UI thread is idle. */ private static final int MSG_POST_CONFIGURATION_CHANGED = 2; /** Used to delay the zoom ring dismissal. */ private static final int MSG_DISMISS_ZOOM_RING = 3; - - /** - * If setVisible(true) is called and the owner view's window token is null, - * we delay the setVisible(true) call until it is not null. - */ - private static final int MSG_POST_SET_VISIBLE = 4; private Handler mHandler = new Handler() { @Override @@ -247,36 +224,26 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, case MSG_SCROLLER_TICK: onScrollerTick(); break; - + case MSG_POST_CONFIGURATION_CHANGED: onPostConfigurationChanged(); break; - + case MSG_DISMISS_ZOOM_RING: setVisible(false); break; - - case MSG_POST_SET_VISIBLE: - if (mOwnerView.getWindowToken() == null) { - // Doh, it is still null, throw an exception - throw new IllegalArgumentException( - "Cannot make the zoom ring visible if the owner view is " + - "not attached to a window."); - } - setVisible(true); - break; } - - } + + } }; - + public ZoomRingController(Context context, View ownerView) { mContext = context; mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); mPanner = new Panner(); mOwnerView = ownerView; - + mZoomRing = new ZoomRing(context); mZoomRing.setId(com.android.internal.R.id.zoomControls); mZoomRing.setLayoutParams(new FrameLayout.LayoutParams( @@ -284,7 +251,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, FrameLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER)); mZoomRing.setCallback(this); - + createPanningArrows(); mContainerLayoutParams = new LayoutParams(); @@ -302,12 +269,12 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mContainer = new FrameLayout(context); mContainer.setLayoutParams(mContainerLayoutParams); mContainer.setMeasureAllChildren(true); - + mContainer.addView(mZoomRing); mContainer.addView(mPanningArrows); - + mScroller = new Scroller(context, new DecelerateInterpolator()); - + mViewConfig = ViewConfiguration.get(context); } @@ -320,7 +287,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, FrameLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER)); mPanningArrows.setVisibility(View.INVISIBLE); - + mPanningArrowsEnterAnimation = AnimationUtils.loadAnimation(mContext, com.android.internal.R.anim.fade_in); mPanningArrowsExitAnimation = AnimationUtils.loadAnimation(mContext, @@ -332,7 +299,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, * get a callback. Once there is a callback, the accumulator resets. For * example, if you set this to PI/6, it will give a callback every time the * user moves PI/6 amount on the ring. - * + * * @param callbackThreshold The angle for the callback threshold, in radians */ public void setZoomCallbackThreshold(float callbackThreshold) { @@ -341,7 +308,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, /** * Sets a drawable for the zoom ring track. - * + * * @param drawable The drawable to use for the track. * @hide Need a better way of doing this, but this one-off for browser so it * can have its final look for the usability study @@ -349,11 +316,11 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void setZoomRingTrack(int drawable) { mZoomRing.setBackgroundResource(drawable); } - + public void setCallback(OnZoomListener callback) { mCallback = callback; } - + public void setThumbAngle(float angle) { mZoomRing.setThumbAngle((int) (angle * ZoomRing.RADIAN_INT_MULTIPLIER)); } @@ -361,21 +328,13 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void setThumbAngleAnimated(float angle) { mZoomRing.setThumbAngleAnimated((int) (angle * ZoomRing.RADIAN_INT_MULTIPLIER), 0); } - + public void setResetThumbAutomatically(boolean resetThumbAutomatically) { mZoomRing.setResetThumbAutomatically(resetThumbAutomatically); } - - public void setVibration(boolean vibrate) { - mZoomRing.setVibration(vibrate); - } - - public void setThumbVisible(boolean thumbVisible) { - mZoomRing.setThumbVisible(thumbVisible); - } public void setThumbClockwiseBound(float angle) { - mZoomRing.setThumbClockwiseBound(angle >= 0 ? + mZoomRing.setThumbClockwiseBound(angle >= 0 ? (int) (angle * ZoomRing.RADIAN_INT_MULTIPLIER) : Integer.MIN_VALUE); } @@ -392,26 +351,14 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void setVisible(boolean visible) { - if (!useThisZoom(mContext)) return; + if (useOldZoom(mContext)) return; if (visible) { - if (mOwnerView.getWindowToken() == null) { - /* - * We need a window token to show ourselves, maybe the owner's - * window hasn't been created yet but it will have been by the - * time the looper is idle, so post the setVisible(true) call. - */ - if (!mHandler.hasMessages(MSG_POST_SET_VISIBLE)) { - mHandler.sendEmptyMessage(MSG_POST_SET_VISIBLE); - } - return; - } - dismissZoomRingDelayed(ZOOM_CONTROLS_TIMEOUT); } else { mPanner.stop(); } - + if (mIsZoomRingVisible == visible) { return; } @@ -421,40 +368,40 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, if (mContainerLayoutParams.token == null) { mContainerLayoutParams.token = mOwnerView.getWindowToken(); } - + mWindowManager.addView(mContainer, mContainerLayoutParams); - + if (mPostedVisibleInitializer == null) { mPostedVisibleInitializer = new Runnable() { public void run() { refreshPositioningVariables(); resetZoomRing(); - + // TODO: remove this 'update' and just center zoom ring before the // 'add', but need to make sure we have the width and height (which // probably can only be retrieved after it's measured, which happens // after it's added). mWindowManager.updateViewLayout(mContainer, mContainerLayoutParams); - + if (mCallback != null) { mCallback.onVisibilityChanged(true); } } - }; + }; } - + mPanningArrows.setAnimation(null); - + mHandler.post(mPostedVisibleInitializer); - + // Handle configuration changes when visible mContext.registerReceiver(mConfigurationChangedReceiver, mConfigurationChangedFilter); - + // Steal key/touches events from the owner mOwnerView.setOnKeyListener(this); mOwnerView.setOnTouchListener(this); mReleaseTouchListenerOnUp = false; - + } else { // Don't want to steal any more keys/touches mOwnerView.setOnKeyListener(null); @@ -468,45 +415,45 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, // No longer care about configuration changes mContext.unregisterReceiver(mConfigurationChangedReceiver); - + mWindowManager.removeView(mContainer); mHandler.removeCallbacks(mPostedVisibleInitializer); - + if (mCallback != null) { mCallback.onVisibilityChanged(false); } } - + } - + /** * TODO: docs - * + * * Notes: * - Touch dispatching is different. Only direct children who are clickable are eligble for touch events. * - Please ensure you set your View to INVISIBLE not GONE when hiding it. - * + * * @return */ public FrameLayout getContainer() { return mContainer; } - + public int getZoomRingId() { return mZoomRing.getId(); } - + private void dismissZoomRingDelayed(int delay) { mHandler.removeMessages(MSG_DISMISS_ZOOM_RING); mHandler.sendEmptyMessageDelayed(MSG_DISMISS_ZOOM_RING, delay); } - + private void resetZoomRing() { mScroller.abortAnimation(); - + mContainerLayoutParams.x = mCenteredContainerX; mContainerLayoutParams.y = mCenteredContainerY; - + // Reset the thumb mZoomRing.resetThumbAngle(); } @@ -514,15 +461,13 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, /** * Should be called by the client for each event belonging to the second tap * (the down, move, up, and cancel events). - * + * * @param event The event belonging to the second tap. * @return Whether the event was consumed. */ public boolean handleDoubleTapEvent(MotionEvent event) { - if (!useThisZoom(mContext)) return false; - int action = event.getAction(); - + // TODO: make sure this works well with the // ownerView.setOnTouchListener(this) instead of window receiving // touches @@ -530,19 +475,19 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mTouchMode = TOUCH_MODE_WAITING_FOR_TAP_DRAG_MOVEMENT; int x = (int) event.getX(); int y = (int) event.getY(); - + refreshPositioningVariables(); setVisible(true); centerPoint(x, y); - ensureZoomRingIsCentered(); - + ensureZoomRingIsCentered(); + // Tap drag mode stuff mTapDragStartX = x; mTapDragStartY = y; } else if (action == MotionEvent.ACTION_CANCEL) { mTouchMode = TOUCH_MODE_IDLE; - + } else { // action is move or up switch (mTouchMode) { case TOUCH_MODE_WAITING_FOR_TAP_DRAG_MOVEMENT: { @@ -558,29 +503,29 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, setTouchTargetView(mZoomRing); } return true; - + case MotionEvent.ACTION_UP: mTouchMode = TOUCH_MODE_IDLE; break; } break; } - + case TOUCH_MODE_FORWARDING_FOR_TAP_DRAG: { switch (action) { case MotionEvent.ACTION_MOVE: giveTouchToZoomRing(event); return true; - + case MotionEvent.ACTION_UP: mTouchMode = TOUCH_MODE_IDLE; - + /* * This is a power-user feature that only shows the * zoom while the user is performing the tap-drag. * That means once it is released, the zoom ring * should disappear. - */ + */ mZoomRing.setTapDragMode(false, (int) event.getX(), (int) event.getY()); dismissZoomRingDelayed(0); break; @@ -589,13 +534,13 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, } } } - + return true; } - + private void ensureZoomRingIsCentered() { LayoutParams lp = mContainerLayoutParams; - + if (lp.x != mCenteredContainerX || lp.y != mCenteredContainerY) { int width = mContainer.getWidth(); int height = mContainer.getHeight(); @@ -604,21 +549,21 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mHandler.sendEmptyMessage(MSG_SCROLLER_TICK); } } - + private void refreshPositioningVariables() { mZoomRingWidth = mZoomRing.getWidth(); mZoomRingHeight = mZoomRing.getHeight(); - + // Calculate the owner view's bounds mOwnerView.getGlobalVisibleRect(mOwnerViewBounds); - + // Get the center Gravity.apply(Gravity.CENTER, mContainer.getWidth(), mContainer.getHeight(), mOwnerViewBounds, mTempRect); mCenteredContainerX = mTempRect.left; mCenteredContainerY = mTempRect.top; } - + /** * Centers the point (in owner view's coordinates). */ @@ -627,7 +572,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mCallback.onCenter(x, y); } } - + private void giveTouchToZoomRing(MotionEvent event) { int rawX = (int) event.getRawX(); int rawY = (int) event.getRawY(); @@ -635,11 +580,11 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, int y = rawY - mContainerLayoutParams.y - mZoomRing.getTop(); mZoomRing.handleTouch(event.getAction(), event.getEventTime(), x, y, rawX, rawY); } - + public void onZoomRingSetMovableHintVisible(boolean visible) { - setPanningArrowsVisible(visible); + setPanningArrowsVisible(visible); } - + public void onUserInteractionStarted() { mHandler.removeMessages(MSG_DISMISS_ZOOM_RING); } @@ -651,62 +596,24 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void onZoomRingMovingStarted() { mScroller.abortAnimation(); mTouchingEdgeStartTime = 0; - mMovingZoomRingOobX = 0; - mMovingZoomRingOobY = 0; if (mCallback != null) { mCallback.onBeginPan(); } } - + private void setPanningArrowsVisible(boolean visible) { mPanningArrows.startAnimation(visible ? mPanningArrowsEnterAnimation : mPanningArrowsExitAnimation); mPanningArrows.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); } - - public boolean onZoomRingMoved(int deltaX, int deltaY, int rawX, int rawY) { - - if (mMovingZoomRingOobX != 0) { - /* - * The finger has moved off the point where it originally touched - * the zidget. - */ - boolean wasOobLeft = mMovingZoomRingOobX < 0; - mMovingZoomRingOobX += deltaX; - if ((wasOobLeft && mMovingZoomRingOobX > 0) || - (!wasOobLeft && mMovingZoomRingOobX < 0)) { - /* - * Woot, the finger is back on the original point. Infact, it - * went PAST its original point, so take the amount it passed - * and use that as the delta to move the zoom ring. - */ - deltaX = mMovingZoomRingOobX; - // No longer out-of-bounds, reset - mMovingZoomRingOobX = 0; - } else { - // The finger is still not back, eat this movement - deltaX = 0; - } - } - - if (mMovingZoomRingOobY != 0) { - // See above for comments - boolean wasOobUp = mMovingZoomRingOobY < 0; - mMovingZoomRingOobY += deltaY; - if ((wasOobUp && mMovingZoomRingOobY > 0) || (!wasOobUp && mMovingZoomRingOobY < 0)) { - deltaY = mMovingZoomRingOobY; - mMovingZoomRingOobY = 0; - } else { - deltaY = 0; - } - } - + + public boolean onZoomRingMoved(int deltaX, int deltaY) { WindowManager.LayoutParams lp = mContainerLayoutParams; Rect ownerBounds = mOwnerViewBounds; - + int zoomRingLeft = mZoomRing.getLeft(); int zoomRingTop = mZoomRing.getTop(); - + int newX = lp.x + deltaX; int newZoomRingX = newX + zoomRingLeft; newZoomRingX = (newZoomRingX <= ownerBounds.left) ? ownerBounds.left : @@ -720,26 +627,19 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, (newZoomRingY + mZoomRingHeight > ownerBounds.bottom) ? ownerBounds.bottom - mZoomRingHeight : newZoomRingY; lp.y = newZoomRingY - zoomRingTop; - + mWindowManager.updateViewLayout(mContainer, lp); - + // Check for pan boolean horizontalPanning = true; int leftGap = newZoomRingX - ownerBounds.left; if (leftGap < MAX_PAN_GAP) { - if (leftGap == 0 && deltaX != 0 && mMovingZoomRingOobX == 0) { - // Future moves in this direction should be accumulated in mMovingZoomRingOobX - mMovingZoomRingOobX = deltaX / Math.abs(deltaX); - } if (shouldPan(leftGap)) { mPanner.setHorizontalStrength(-getStrengthFromGap(leftGap)); } } else { int rightGap = ownerBounds.right - (lp.x + mZoomRingWidth + zoomRingLeft); if (rightGap < MAX_PAN_GAP) { - if (rightGap == 0 && deltaX != 0 && mMovingZoomRingOobX == 0) { - mMovingZoomRingOobX = deltaX / Math.abs(deltaX); - } if (shouldPan(rightGap)) { mPanner.setHorizontalStrength(getStrengthFromGap(rightGap)); } @@ -748,21 +648,15 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, horizontalPanning = false; } } - + int topGap = newZoomRingY - ownerBounds.top; if (topGap < MAX_PAN_GAP) { - if (topGap == 0 && deltaY != 0 && mMovingZoomRingOobY == 0) { - mMovingZoomRingOobY = deltaY / Math.abs(deltaY); - } if (shouldPan(topGap)) { mPanner.setVerticalStrength(-getStrengthFromGap(topGap)); } } else { int bottomGap = ownerBounds.bottom - (lp.y + mZoomRingHeight + zoomRingTop); if (bottomGap < MAX_PAN_GAP) { - if (bottomGap == 0 && deltaY != 0 && mMovingZoomRingOobY == 0) { - mMovingZoomRingOobY = deltaY / Math.abs(deltaY); - } if (shouldPan(bottomGap)) { mPanner.setVerticalStrength(getStrengthFromGap(bottomGap)); } @@ -776,13 +670,13 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, } } } - + return true; } - + private boolean shouldPan(int gap) { if (mPanningEnabledForThisInteraction) return true; - + if (gap < MAX_INITIATE_PAN_GAP) { long time = SystemClock.elapsedRealtime(); if (mTouchingEdgeStartTime != 0 && @@ -799,7 +693,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, } return false; } - + public void onZoomRingMovingStopped() { mPanner.stop(); setPanningArrowsVisible(false); @@ -807,18 +701,18 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mCallback.onEndPan(); } } - + private int getStrengthFromGap(int gap) { return gap > MAX_PAN_GAP ? 0 : (MAX_PAN_GAP - gap) * 100 / MAX_PAN_GAP; } - + public void onZoomRingThumbDraggingStarted() { if (mCallback != null) { mCallback.onBeginDrag(); } } - + public boolean onZoomRingThumbDragged(int numLevels, int startAngle, int curAngle) { if (mCallback != null) { int deltaZoomLevel = -numLevels; @@ -826,17 +720,17 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mZoomRingWidth / 2; int globalZoomCenterY = mContainerLayoutParams.y + mZoomRing.getTop() + mZoomRingHeight / 2; - + return mCallback.onDragZoom(deltaZoomLevel, globalZoomCenterX - mOwnerViewBounds.left, globalZoomCenterY - mOwnerViewBounds.top, (float) startAngle / ZoomRing.RADIAN_INT_MULTIPLIER, (float) curAngle / ZoomRing.RADIAN_INT_MULTIPLIER); } - + return false; } - + public void onZoomRingThumbDraggingStopped() { if (mCallback != null) { mCallback.onEndDrag(); @@ -846,35 +740,35 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void onZoomRingDismissed(boolean dismissImmediately) { if (dismissImmediately) { mHandler.removeMessages(MSG_DISMISS_ZOOM_RING); - setVisible(false); + setVisible(false); } else { dismissZoomRingDelayed(ZOOM_RING_DISMISS_DELAY); } } - + public void onRingDown(int tickAngle, int touchAngle) { } - + public boolean onTouch(View v, MotionEvent event) { if (sTutorialDialog != null && sTutorialDialog.isShowing() && SystemClock.elapsedRealtime() - sTutorialShowTime >= TUTORIAL_MIN_DISPLAY_TIME) { finishZoomTutorial(); } - + int action = event.getAction(); if (mReleaseTouchListenerOnUp) { - // The ring was dismissed but we need to throw away all events until the up + // The ring was dismissed but we need to throw away all events until the up if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) { mOwnerView.setOnTouchListener(null); setTouchTargetView(null); mReleaseTouchListenerOnUp = false; } - + // Eat this event return true; } - + View targetView = mTouchTargetView; switch (action) { @@ -882,7 +776,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, targetView = getViewForTouch((int) event.getRawX(), (int) event.getRawY()); setTouchTargetView(targetView); break; - + case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL: setTouchTargetView(null); @@ -893,7 +787,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, // The upperleft corner of the target view in raw coordinates int targetViewRawX = mContainerLayoutParams.x + mTouchTargetLocationInWindow[0]; int targetViewRawY = mContainerLayoutParams.y + mTouchTargetLocationInWindow[1]; - + MotionEvent containerEvent = MotionEvent.obtain(event); // Convert the motion event into the target view's coordinates (from // owner view's coordinates) @@ -902,32 +796,32 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, boolean retValue = targetView.dispatchTouchEvent(containerEvent); containerEvent.recycle(); return retValue; - + } else { if (action == MotionEvent.ACTION_DOWN) { dismissZoomRingDelayed(ZOOM_RING_DISMISS_DELAY); } - + return false; } } - + private void setTouchTargetView(View view) { mTouchTargetView = view; if (view != null) { view.getLocationInWindow(mTouchTargetLocationInWindow); } } - + /** * Returns the View that should receive a touch at the given coordinates. - * + * * @param rawX The raw X. * @param rawY The raw Y. * @return The view that should receive the touches, or null if there is not one. */ private View getViewForTouch(int rawX, int rawY) { - // Check to see if it is touching the ring + // Check to see if it is touching the ring int containerCenterX = mContainerLayoutParams.x + mContainer.getWidth() / 2; int containerCenterY = mContainerLayoutParams.y + mContainer.getHeight() / 2; int distanceFromCenterX = rawX - containerCenterX; @@ -938,7 +832,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, zoomRingRadius * zoomRingRadius) { return mZoomRing; } - + // Check to see if it is touching any other clickable View. // Reverse order so the child drawn on top gets first dibs. int containerCoordsX = rawX - mContainerLayoutParams.x; @@ -950,13 +844,13 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, !child.isClickable()) { continue; } - + child.getHitRect(frame); if (frame.contains(containerCoordsX, containerCoordsY)) { return child; } } - + return null; } @@ -967,34 +861,34 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, case KeyEvent.KEYCODE_DPAD_RIGHT: // Eat these return true; - + case KeyEvent.KEYCODE_DPAD_UP: case KeyEvent.KEYCODE_DPAD_DOWN: // Keep the zoom alive a little longer dismissZoomRingDelayed(ZOOM_CONTROLS_TIMEOUT); // They started zooming, hide the thumb arrows mZoomRing.setThumbArrowsVisible(false); - + if (mCallback != null && event.getAction() == KeyEvent.ACTION_DOWN) { mCallback.onSimpleZoom(keyCode == KeyEvent.KEYCODE_DPAD_UP); } - + return true; } - + return false; } private void onScrollerTick() { if (!mScroller.computeScrollOffset() || !mIsZoomRingVisible) return; - + mContainerLayoutParams.x = mScroller.getCurrX(); mContainerLayoutParams.y = mScroller.getCurrY(); mWindowManager.updateViewLayout(mContainer, mContainerLayoutParams); mHandler.sendEmptyMessage(MSG_SCROLLER_TICK); } - + private void onPostConfigurationChanged() { dismissZoomRingDelayed(ZOOM_CONTROLS_TIMEOUT); refreshPositioningVariables(); @@ -1014,7 +908,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, * before. Furthermore, if the application does not have privilege to write * to the system settings, it will store this bit locally in a shared * preference. - * + * * @hide This should only be used by our main apps--browser, maps, and * gallery */ @@ -1023,65 +917,53 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, if (Settings.System.getInt(cr, SETTING_NAME_SHOWN_TOAST, 0) == 1) { return; } - + SharedPreferences sp = context.getSharedPreferences("_zoom", Context.MODE_PRIVATE); if (sp.getInt(SETTING_NAME_SHOWN_TOAST, 0) == 1) { return; } - + if (sTutorialDialog != null && sTutorialDialog.isShowing()) { sTutorialDialog.dismiss(); } - - LayoutInflater layoutInflater = - (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); - TextView textView = (TextView) layoutInflater.inflate( - com.android.internal.R.layout.alert_dialog_simple_text, null) - .findViewById(android.R.id.text1); - textView.setText(com.android.internal.R.string.tutorial_double_tap_to_zoom_message_short); sTutorialDialog = new AlertDialog.Builder(context) - .setView(textView) + .setMessage( + com.android.internal.R.string.tutorial_double_tap_to_zoom_message_short) .setIcon(0) .create(); - + Window window = sTutorialDialog.getWindow(); window.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM); - window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND | + window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND | WindowManager.LayoutParams.FLAG_BLUR_BEHIND); window.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE); - + sTutorialDialog.show(); sTutorialShowTime = SystemClock.elapsedRealtime(); } - - public static void finishZoomTutorial(Context context, boolean userNotified) { + + public void finishZoomTutorial() { if (sTutorialDialog == null) return; - + sTutorialDialog.dismiss(); sTutorialDialog = null; - + // Record that they have seen the tutorial - if (userNotified) { - try { - Settings.System.putInt(context.getContentResolver(), SETTING_NAME_SHOWN_TOAST, 1); - } catch (SecurityException e) { - /* - * The app does not have permission to clear this global flag, make - * sure the user does not see the message when he comes back to this - * same app at least. - */ - SharedPreferences sp = context.getSharedPreferences("_zoom", Context.MODE_PRIVATE); - sp.edit().putInt(SETTING_NAME_SHOWN_TOAST, 1).commit(); - } + try { + Settings.System.putInt(mContext.getContentResolver(), SETTING_NAME_SHOWN_TOAST, 1); + } catch (SecurityException e) { + /* + * The app does not have permission to clear this global flag, make + * sure the user does not see the message when he comes back to this + * same app at least. + */ + SharedPreferences sp = mContext.getSharedPreferences("_zoom", Context.MODE_PRIVATE); + sp.edit().putInt(SETTING_NAME_SHOWN_TOAST, 1).commit(); } } - - public void finishZoomTutorial() { - finishZoomTutorial(mContext, true); - } - + public void setPannerStartVelocity(float startVelocity) { mPanner.mStartVelocity = startVelocity; } @@ -1101,27 +983,27 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, private class Panner implements Runnable { private static final int RUN_DELAY = 15; private static final float STOP_SLOWDOWN = 0.8f; - + private final Handler mUiHandler = new Handler(); - + private int mVerticalStrength; private int mHorizontalStrength; private boolean mStopping; - + /** The time this current pan started. */ private long mStartTime; - + /** The time of the last callback to pan the map/browser/etc. */ private long mPreviousCallbackTime; - + // TODO Adjust to be DPI safe private float mStartVelocity = 135; private float mAcceleration = 160; private float mMaxVelocity = 1000; private int mStartAcceleratingDuration = 700; private float mVelocity; - + /** -100 (full left) to 0 (none) to 100 (full right) */ public void setHorizontalStrength(int horizontalStrength) { if (mHorizontalStrength == 0 && mVerticalStrength == 0 && horizontalStrength != 0) { @@ -1129,7 +1011,7 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, } else if (mVerticalStrength == 0 && horizontalStrength == 0) { stop(); } - + mHorizontalStrength = horizontalStrength; mStopping = false; } @@ -1141,11 +1023,11 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, } else if (mHorizontalStrength == 0 && verticalStrength == 0) { stop(); } - - mVerticalStrength = verticalStrength; + + mVerticalStrength = verticalStrength; mStopping = false; } - + private void start() { mUiHandler.post(this); mPreviousCallbackTime = 0; @@ -1155,37 +1037,37 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, public void stop() { mStopping = true; } - + public void run() { if (mStopping) { mHorizontalStrength *= STOP_SLOWDOWN; mVerticalStrength *= STOP_SLOWDOWN; } - + if (mHorizontalStrength == 0 && mVerticalStrength == 0) { return; } - + boolean firstRun = mPreviousCallbackTime == 0; long curTime = SystemClock.elapsedRealtime(); int panAmount = getPanAmount(mPreviousCallbackTime, curTime); mPreviousCallbackTime = curTime; - + if (firstRun) { mStartTime = curTime; mVelocity = mStartVelocity; } else { int panX = panAmount * mHorizontalStrength / 100; int panY = panAmount * mVerticalStrength / 100; - + if (mCallback != null) { mCallback.onPan(panX, panY); } } - + mUiHandler.postDelayed(this, RUN_DELAY); } - + private int getPanAmount(long previousTime, long currentTime) { if (mVelocity > mMaxVelocity) { mVelocity = mMaxVelocity; @@ -1195,12 +1077,14 @@ public class ZoomRingController implements ZoomRing.OnZoomRingCallback, mVelocity += (currentTime - previousTime) * mAcceleration / 1000; } } - + return (int) ((currentTime - previousTime) * mVelocity) / 1000; } } + + public interface OnZoomListener { void onBeginDrag(); boolean onDragZoom(int deltaZoomLevel, int centerX, int centerY, float startAngle, |