Examples with ViewParent android.view.ViewParent used on opensource projects

Example 21 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class WebViewClassic method handleTouchEventCommon.

/*
    * Common code for single touch and multi-touch.
    * (x, y) denotes current focus point, which is the touch point for single touch
    * and the middle point for multi-touch.
    */
private void handleTouchEventCommon(MotionEvent event, int action, int x, int y) {
    ScaleGestureDetector detector = mZoomManager.getScaleGestureDetector();
    long eventTime = event.getEventTime();
    // Due to the touch screen edge effect, a touch closer to the edge
    // always snapped to the edge. As getViewWidth() can be different from
    // getWidth() due to the scrollbar, adjusting the point to match
    // getViewWidth(). Same applied to the height.
    x = Math.min(x, getViewWidth() - 1);
    y = Math.min(y, getViewHeightWithTitle() - 1);
    int deltaX = mLastTouchX - x;
    int deltaY = mLastTouchY - y;
    int contentX = viewToContentX(x + getScrollX());
    int contentY = viewToContentY(y + getScrollY());
    switch(action) {
        case MotionEvent.ACTION_DOWN:
            {
                mConfirmMove = false;
                // Channel Scrolling
                mFirstTouchX = x;
                mFirstTouchY = y;
                mDistanceX = mDistanceY = 0;
                if (!mEditTextScroller.isFinished()) {
                    mEditTextScroller.abortAnimation();
                }
                if (!mScroller.isFinished()) {
                    // stop the current scroll animation, but if this is
                    // the start of a fling, allow it to add to the current
                    // fling's velocity
                    mScroller.abortAnimation();
                    mTouchMode = TOUCH_DRAG_START_MODE;
                    mConfirmMove = true;
                    nativeSetIsScrolling(false);
                } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) {
                    mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP);
                    removeTouchHighlight();
                    if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) {
                        mTouchMode = TOUCH_DOUBLE_TAP_MODE;
                    } else {
                        mTouchMode = TOUCH_INIT_MODE;
                    }
                } else {
                    // the normal case
                    mTouchMode = TOUCH_INIT_MODE;
                    if (mLogEvent && eventTime - mLastTouchUpTime < 1000) {
                        EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, (eventTime - mLastTouchUpTime), eventTime);
                    }
                    mSelectionStarted = false;
                    if (mSelectingText) {
                        ensureSelectionHandles();
                        int shiftedY = y - getTitleHeight() + getScrollY();
                        int shiftedX = x + getScrollX();
                        if (mSelectHandleBaseBounds.contains(shiftedX, shiftedY)) {
                            mSelectionStarted = true;
                            mSelectDraggingCursor = mSelectCursorBase;
                            mSelectDraggingTextQuad = mSelectCursorBaseTextQuad;
                            if (mIsCaretSelection) {
                                mPrivateHandler.removeMessages(CLEAR_CARET_HANDLE);
                                hidePasteButton();
                            }
                        } else if (mSelectHandleExtentBounds.contains(shiftedX, shiftedY)) {
                            mSelectionStarted = true;
                            mSelectDraggingCursor = mSelectCursorExtent;
                            mSelectDraggingTextQuad = mSelectCursorExtentTextQuad;
                        } else if (mIsCaretSelection) {
                            selectionDone();
                        }
                        if (DebugFlags.WEB_VIEW) {
                            Log.v(LOGTAG, "select=" + contentX + "," + contentY);
                        }
                    }
                }
                // Trigger the link
                if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) {
                    mPrivateHandler.sendEmptyMessageDelayed(SWITCH_TO_SHORTPRESS, TAP_TIMEOUT);
                    mPrivateHandler.sendEmptyMessageDelayed(SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT);
                }
                startTouch(x, y, eventTime);
                if (mIsEditingText) {
                    mTouchInEditText = mEditTextContentBounds.contains(contentX, contentY);
                }
                break;
            }
        case MotionEvent.ACTION_MOVE:
            {
                if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) >= mTouchSlopSquare) {
                    mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
                    mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
                    mConfirmMove = true;
                    if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) {
                        mTouchMode = TOUCH_INIT_MODE;
                    }
                    removeTouchHighlight();
                }
                if (mSelectingText && mSelectionStarted) {
                    if (DebugFlags.WEB_VIEW) {
                        Log.v(LOGTAG, "extend=" + contentX + "," + contentY);
                    }
                    ViewParent parent = mWebView.getParent();
                    if (parent != null) {
                        parent.requestDisallowInterceptTouchEvent(true);
                    }
                    if (deltaX != 0 || deltaY != 0) {
                        int handleX = contentX + viewToContentDimension(mSelectOffset.x);
                        int handleY = contentY + viewToContentDimension(mSelectOffset.y);
                        mSelectDraggingCursor.set(handleX, handleY);
                        boolean inCursorText = mSelectDraggingTextQuad.containsPoint(handleX, handleY);
                        boolean inEditBounds = mEditTextContentBounds.contains(handleX, handleY);
                        if (mIsEditingText && !inEditBounds) {
                            beginScrollEdit();
                        } else {
                            endScrollEdit();
                        }
                        boolean snapped = false;
                        if (inCursorText || (mIsEditingText && !inEditBounds)) {
                            snapDraggingCursor();
                            snapped = true;
                        }
                        updateWebkitSelection(snapped);
                        if (!inCursorText && mIsEditingText && inEditBounds) {
                            // Visually snap even if we have moved the handle.
                            snapDraggingCursor();
                        }
                        mLastTouchX = x;
                        mLastTouchY = y;
                        invalidate();
                    }
                    break;
                }
                if (mTouchMode == TOUCH_DONE_MODE) {
                    // default is yes
                    break;
                }
                if (mVelocityTracker == null) {
                    Log.e(LOGTAG, "Got null mVelocityTracker when " + " mTouchMode = " + mTouchMode);
                } else {
                    mVelocityTracker.addMovement(event);
                }
                if (mTouchMode != TOUCH_DRAG_MODE && mTouchMode != TOUCH_DRAG_LAYER_MODE && mTouchMode != TOUCH_DRAG_TEXT_MODE) {
                    if (!mConfirmMove) {
                        break;
                    }
                    if ((detector == null || !detector.isInProgress()) && SNAP_NONE == mSnapScrollMode) {
                        int ax = Math.abs(x - mFirstTouchX);
                        int ay = Math.abs(y - mFirstTouchY);
                        if (ax < SNAP_BOUND && ay < SNAP_BOUND) {
                            break;
                        } else if (ax < SNAP_BOUND) {
                            mSnapScrollMode = SNAP_Y;
                        } else if (ay < SNAP_BOUND) {
                            mSnapScrollMode = SNAP_X;
                        }
                    }
                    mTouchMode = TOUCH_DRAG_MODE;
                    mLastTouchX = x;
                    mLastTouchY = y;
                    deltaX = 0;
                    deltaY = 0;
                    startScrollingLayer(x, y);
                    startDrag();
                }
                // do pan
                boolean keepScrollBarsVisible = false;
                if (deltaX == 0 && deltaY == 0) {
                    keepScrollBarsVisible = true;
                } else {
                    if (mSnapScrollMode == SNAP_X || mSnapScrollMode == SNAP_Y) {
                        mDistanceX += Math.abs(deltaX);
                        mDistanceY += Math.abs(deltaY);
                        if (mSnapScrollMode == SNAP_X) {
                            if (mDistanceY > sChannelDistance) {
                                mSnapScrollMode = SNAP_NONE;
                            } else if (mDistanceX > sChannelDistance) {
                                mDistanceX = mDistanceY = 0;
                            }
                        } else {
                            if (mDistanceX > sChannelDistance) {
                                mSnapScrollMode = SNAP_NONE;
                            } else if (mDistanceY > sChannelDistance) {
                                mDistanceX = mDistanceY = 0;
                            }
                        }
                    }
                    if (mSnapScrollMode != SNAP_NONE) {
                        if ((mSnapScrollMode & SNAP_X) == SNAP_X) {
                            deltaY = 0;
                        } else {
                            deltaX = 0;
                        }
                    }
                    if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) {
                        mHeldMotionless = MOTIONLESS_FALSE;
                    } else {
                        mHeldMotionless = MOTIONLESS_TRUE;
                        keepScrollBarsVisible = true;
                    }
                    mLastTouchTime = eventTime;
                    boolean allDrag = doDrag(deltaX, deltaY);
                    if (allDrag) {
                        mLastTouchX = x;
                        mLastTouchY = y;
                    } else {
                        int contentDeltaX = (int) Math.floor(deltaX * mZoomManager.getInvScale());
                        int roundedDeltaX = contentToViewDimension(contentDeltaX);
                        int contentDeltaY = (int) Math.floor(deltaY * mZoomManager.getInvScale());
                        int roundedDeltaY = contentToViewDimension(contentDeltaY);
                        mLastTouchX -= roundedDeltaX;
                        mLastTouchY -= roundedDeltaY;
                    }
                }
                break;
            }
        case MotionEvent.ACTION_UP:
            {
                mFirstTouchX = mFirstTouchY = -1;
                if (mIsEditingText && mSelectionStarted) {
                    endScrollEdit();
                    mPrivateHandler.sendEmptyMessageDelayed(SCROLL_HANDLE_INTO_VIEW, TEXT_SCROLL_FIRST_SCROLL_MS);
                    if (!mConfirmMove && mIsCaretSelection) {
                        showPasteWindow();
                        stopTouch();
                        break;
                    }
                }
                mLastTouchUpTime = eventTime;
                if (mSentAutoScrollMessage) {
                    mAutoScrollX = mAutoScrollY = 0;
                }
                switch(mTouchMode) {
                    case // double tap
                    TOUCH_DOUBLE_TAP_MODE:
                        mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
                        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
                        mTouchMode = TOUCH_DONE_MODE;
                        break;
                    // tap
                    case TOUCH_INIT_MODE:
                    case TOUCH_SHORTPRESS_START_MODE:
                    case TOUCH_SHORTPRESS_MODE:
                        mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS);
                        mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS);
                        if (!mConfirmMove) {
                            if (mSelectingText) {
                                // tapping on selection or controls does nothing
                                if (!mSelectionStarted) {
                                    selectionDone();
                                }
                                break;
                            }
                            // scalable
                            if (mTouchMode == TOUCH_INIT_MODE && (canZoomIn() || canZoomOut())) {
                                mPrivateHandler.sendEmptyMessageDelayed(RELEASE_SINGLE_TAP, ViewConfiguration.getDoubleTapTimeout());
                            }
                            break;
                        }
                    case TOUCH_DRAG_MODE:
                    case TOUCH_DRAG_LAYER_MODE:
                    case TOUCH_DRAG_TEXT_MODE:
                        mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS);
                        // up, we don't want to do a fling
                        if (eventTime - mLastTouchTime <= MIN_FLING_TIME) {
                            if (mVelocityTracker == null) {
                                Log.e(LOGTAG, "Got null mVelocityTracker");
                            } else {
                                mVelocityTracker.addMovement(event);
                            }
                            // set to MOTIONLESS_IGNORE so that it won't keep
                            // removing and sending message in
                            // drawCoreAndCursorRing()
                            mHeldMotionless = MOTIONLESS_IGNORE;
                            doFling();
                            break;
                        } else {
                            if (mScroller.springBack(getScrollX(), getScrollY(), 0, computeMaxScrollX(), 0, computeMaxScrollY())) {
                                invalidate();
                            }
                        }
                        // redraw in high-quality, as we're done dragging
                        mHeldMotionless = MOTIONLESS_TRUE;
                        invalidate();
                    // fall through
                    case TOUCH_DRAG_START_MODE:
                        // TOUCH_DRAG_START_MODE should not happen for the real
                        // device as we almost certain will get a MOVE. But this
                        // is possible on emulator.
                        mLastVelocity = 0;
                        WebViewCore.resumePriority();
                        if (!mSelectingText) {
                            WebViewCore.resumeUpdatePicture(mWebViewCore);
                        }
                        break;
                }
                stopTouch();
                break;
            }
        case MotionEvent.ACTION_CANCEL:
            {
                if (mTouchMode == TOUCH_DRAG_MODE) {
                    mScroller.springBack(getScrollX(), getScrollY(), 0, computeMaxScrollX(), 0, computeMaxScrollY());
                    invalidate();
                }
                cancelTouch();
                break;
            }
    }
}

Example 22 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class Editor method isPositionVisible.

private boolean isPositionVisible(int positionX, int positionY) {
    synchronized (TEMP_POSITION) {
        final float[] position = TEMP_POSITION;
        position[0] = positionX;
        position[1] = positionY;
        View view = mTextView;
        while (view != null) {
            if (view != mTextView) {
                // Local scroll is already taken into account in positionX/Y
                position[0] -= view.getScrollX();
                position[1] -= view.getScrollY();
            }
            if (position[0] < 0 || position[1] < 0 || position[0] > view.getWidth() || position[1] > view.getHeight()) {
                return false;
            }
            if (!view.getMatrix().isIdentity()) {
                view.getMatrix().mapPoints(position);
            }
            position[0] += view.getLeft();
            position[1] += view.getTop();
            final ViewParent parent = view.getParent();
            if (parent instanceof View) {
                view = (View) parent;
            } else {
                // We've reached the ViewRoot, stop iterating
                view = null;
            }
        }
    }
    // We've been able to walk up the view hierarchy and the position was never clipped
    return true;
}

Example 23 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class ScrollView method onTouchEvent.

@Override
public boolean onTouchEvent(MotionEvent ev) {
    initVelocityTrackerIfNotExists();
    mVelocityTracker.addMovement(ev);
    final int action = ev.getAction();
    switch(action & MotionEvent.ACTION_MASK) {
        case MotionEvent.ACTION_DOWN:
            {
                if (getChildCount() == 0) {
                    return false;
                }
                if ((mIsBeingDragged = !mScroller.isFinished())) {
                    final ViewParent parent = getParent();
                    if (parent != null) {
                        parent.requestDisallowInterceptTouchEvent(true);
                    }
                }
                /*
                 * If being flinged and user touches, stop the fling. isFinished
                 * will be false if being flinged.
                 */
                if (!mScroller.isFinished()) {
                    mScroller.abortAnimation();
                    if (mFlingStrictSpan != null) {
                        mFlingStrictSpan.finish();
                        mFlingStrictSpan = null;
                    }
                }
                // Remember where the motion event started
                mLastMotionY = (int) ev.getY();
                mActivePointerId = ev.getPointerId(0);
                break;
            }
        case MotionEvent.ACTION_MOVE:
            final int activePointerIndex = ev.findPointerIndex(mActivePointerId);
            if (activePointerIndex == -1) {
                Log.e(TAG, "Invalid pointerId=" + mActivePointerId + " in onTouchEvent");
                break;
            }
            final int y = (int) ev.getY(activePointerIndex);
            int deltaY = mLastMotionY - y;
            if (!mIsBeingDragged && Math.abs(deltaY) > mTouchSlop) {
                final ViewParent parent = getParent();
                if (parent != null) {
                    parent.requestDisallowInterceptTouchEvent(true);
                }
                mIsBeingDragged = true;
                if (deltaY > 0) {
                    deltaY -= mTouchSlop;
                } else {
                    deltaY += mTouchSlop;
                }
            }
            if (mIsBeingDragged) {
                // Scroll to follow the motion event
                mLastMotionY = y;
                final int oldX = mScrollX;
                final int oldY = mScrollY;
                final int range = getScrollRange();
                final int overscrollMode = getOverScrollMode();
                final boolean canOverscroll = overscrollMode == OVER_SCROLL_ALWAYS || (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0);
                if (overScrollBy(0, deltaY, 0, mScrollY, 0, range, 0, mOverscrollDistance, true)) {
                    // Break our velocity if we hit a scroll barrier.
                    mVelocityTracker.clear();
                }
                onScrollChanged(mScrollX, mScrollY, oldX, oldY);
                if (canOverscroll) {
                    final int pulledToY = oldY + deltaY;
                    if (pulledToY < 0) {
                        mEdgeGlowTop.onPull((float) deltaY / getHeight());
                        if (!mEdgeGlowBottom.isFinished()) {
                            mEdgeGlowBottom.onRelease();
                        }
                    } else if (pulledToY > range) {
                        mEdgeGlowBottom.onPull((float) deltaY / getHeight());
                        if (!mEdgeGlowTop.isFinished()) {
                            mEdgeGlowTop.onRelease();
                        }
                    }
                    if (mEdgeGlowTop != null && (!mEdgeGlowTop.isFinished() || !mEdgeGlowBottom.isFinished())) {
                        postInvalidateOnAnimation();
                    }
                }
            }
            break;
        case MotionEvent.ACTION_UP:
            if (mIsBeingDragged) {
                final VelocityTracker velocityTracker = mVelocityTracker;
                velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
                int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId);
                if (getChildCount() > 0) {
                    if ((Math.abs(initialVelocity) > mMinimumVelocity)) {
                        fling(-initialVelocity);
                    } else {
                        if (mScroller.springBack(mScrollX, mScrollY, 0, 0, 0, getScrollRange())) {
                            postInvalidateOnAnimation();
                        }
                    }
                }
                mActivePointerId = INVALID_POINTER;
                endDrag();
            }
            break;
        case MotionEvent.ACTION_CANCEL:
            if (mIsBeingDragged && getChildCount() > 0) {
                if (mScroller.springBack(mScrollX, mScrollY, 0, 0, 0, getScrollRange())) {
                    postInvalidateOnAnimation();
                }
                mActivePointerId = INVALID_POINTER;
                endDrag();
            }
            break;
        case MotionEvent.ACTION_POINTER_DOWN:
            {
                final int index = ev.getActionIndex();
                mLastMotionY = (int) ev.getY(index);
                mActivePointerId = ev.getPointerId(index);
                break;
            }
        case MotionEvent.ACTION_POINTER_UP:
            onSecondaryPointerUp(ev);
            mLastMotionY = (int) ev.getY(ev.findPointerIndex(mActivePointerId));
            break;
    }
    return true;
}

Example 24 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class PhoneWindow method openPanel.

private void openPanel(PanelFeatureState st, KeyEvent event) {
    // Already open, return
    if (st.isOpen || isDestroyed()) {
        return;
    }
    // (The app should be using an action bar for menu items.)
    if (st.featureId == FEATURE_OPTIONS_PANEL) {
        Context context = getContext();
        Configuration config = context.getResources().getConfiguration();
        boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE;
        boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.HONEYCOMB;
        if (isXLarge && isHoneycombApp) {
            return;
        }
    }
    Callback cb = getCallback();
    if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
        // Callback doesn't want the menu to open, reset any state
        closePanel(st, true);
        return;
    }
    final WindowManager wm = getWindowManager();
    if (wm == null) {
        return;
    }
    // Prepare panel (should have been done before, but just in case)
    if (!preparePanel(st, event)) {
        return;
    }
    int width = WRAP_CONTENT;
    if (st.decorView == null || st.refreshDecorView) {
        if (st.decorView == null) {
            // Initialize the panel decor, this will populate st.decorView
            if (!initializePanelDecor(st) || (st.decorView == null))
                return;
        } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
            // Decor needs refreshing, so remove its views
            st.decorView.removeAllViews();
        }
        // This will populate st.shownPanelView
        if (!initializePanelContent(st) || !st.hasPanelItems()) {
            return;
        }
        ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
        if (lp == null) {
            lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
        }
        int backgroundResId;
        if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
            // If the contents is fill parent for the width, set the
            // corresponding background
            backgroundResId = st.fullBackground;
            width = MATCH_PARENT;
        } else {
            // Otherwise, set the normal panel background
            backgroundResId = st.background;
        }
        st.decorView.setWindowBackground(getContext().getResources().getDrawable(backgroundResId));
        ViewParent shownPanelParent = st.shownPanelView.getParent();
        if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
            ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
        }
        st.decorView.addView(st.shownPanelView, lp);
        /*
             * Give focus to the view, if it or one of its children does not
             * already have it.
             */
        if (!st.shownPanelView.hasFocus()) {
            st.shownPanelView.requestFocus();
        }
    } else if (!st.isInListMode()) {
        width = MATCH_PARENT;
    } else if (st.createdPanelView != null) {
        // If we already had a panel view, carry width=MATCH_PARENT through
        // as we did above when it was created.
        ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
        if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
            width = MATCH_PARENT;
        }
    }
    st.isOpen = true;
    st.isHandled = false;
    WindowManager.LayoutParams lp = new WindowManager.LayoutParams(width, WRAP_CONTENT, st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG, WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH, st.decorView.mDefaultOpacity);
    if (st.isCompact) {
        lp.gravity = getOptionsPanelGravity();
        sRotationWatcher.addWindow(this);
    } else {
        lp.gravity = st.gravity;
    }
    lp.windowAnimations = st.windowAnimations;
    wm.addView(st.decorView, lp);
// Log.v(TAG, "Adding main menu to window manager.");
}

Example 25 with ViewParent

use of android.view.ViewParent in project android_frameworks_base by ParanoidAndroid.

the class PagedView method focusableViewAvailable.

/**
     * If one of our descendant views decides that it could be focused now, only
     * pass that along if it's on the current page.
     *
     * This happens when live folders requery, and if they're off page, they
     * end up calling requestFocus, which pulls it on page.
     */
@Override
public void focusableViewAvailable(View focused) {
    View current = getPageAt(mCurrentPage);
    View v = focused;
    while (true) {
        if (v == current) {
            super.focusableViewAvailable(focused);
            return;
        }
        if (v == this) {
            return;
        }
        ViewParent parent = v.getParent();
        if (parent instanceof View) {
            v = (View) v.getParent();
        } else {
            return;
        }
    }
}