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

Example 36 with ViewRootImpl

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

the class WebViewClassic method ensureFunctorDetached.

private void ensureFunctorDetached() {
    if (mWebView.isHardwareAccelerated()) {
        int drawGLFunction = nativeGetDrawGLFunction(mNativeClass);
        ViewRootImpl viewRoot = mWebView.getViewRootImpl();
        if (drawGLFunction != 0 && viewRoot != null) {
            viewRoot.detachFunctor(drawGLFunction);
        }
    }
}

Example 37 with ViewRootImpl

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

the class ListView method layoutChildren.

@Override
protected void layoutChildren() {
    final boolean blockLayoutRequests = mBlockLayoutRequests;
    if (!blockLayoutRequests) {
        mBlockLayoutRequests = true;
    } else {
        return;
    }
    try {
        super.layoutChildren();
        invalidate();
        if (mAdapter == null) {
            resetList();
            invokeOnItemScrollListener();
            return;
        }
        int childrenTop = mListPadding.top;
        int childrenBottom = mBottom - mTop - mListPadding.bottom;
        int childCount = getChildCount();
        int index = 0;
        int delta = 0;
        View sel;
        View oldSel = null;
        View oldFirst = null;
        View newSel = null;
        View focusLayoutRestoreView = null;
        AccessibilityNodeInfo accessibilityFocusLayoutRestoreNode = null;
        View accessibilityFocusLayoutRestoreView = null;
        int accessibilityFocusPosition = INVALID_POSITION;
        // Remember stuff we will need down below
        switch(mLayoutMode) {
            case LAYOUT_SET_SELECTION:
                index = mNextSelectedPosition - mFirstPosition;
                if (index >= 0 && index < childCount) {
                    newSel = getChildAt(index);
                }
                break;
            case LAYOUT_FORCE_TOP:
            case LAYOUT_FORCE_BOTTOM:
            case LAYOUT_SPECIFIC:
            case LAYOUT_SYNC:
                break;
            case LAYOUT_MOVE_SELECTION:
            default:
                // Remember the previously selected view
                index = mSelectedPosition - mFirstPosition;
                if (index >= 0 && index < childCount) {
                    oldSel = getChildAt(index);
                }
                // Remember the previous first child
                oldFirst = getChildAt(0);
                if (mNextSelectedPosition >= 0) {
                    delta = mNextSelectedPosition - mSelectedPosition;
                }
                // Caution: newSel might be null
                newSel = getChildAt(index + delta);
        }
        boolean dataChanged = mDataChanged;
        if (dataChanged) {
            handleDataChanged();
        }
        // and calling it a day
        if (mItemCount == 0) {
            resetList();
            invokeOnItemScrollListener();
            return;
        } else if (mItemCount != mAdapter.getCount()) {
            throw new IllegalStateException("The content of the adapter has changed but " + "ListView did not receive a notification. Make sure the content of " + "your adapter is not modified from a background thread, but only " + "from the UI thread. [in ListView(" + getId() + ", " + getClass() + ") with Adapter(" + mAdapter.getClass() + ")]");
        }
        setSelectedPositionInt(mNextSelectedPosition);
        // Remember which child, if any, had accessibility focus. This must
        // occur before recycling any views, since that will clear
        // accessibility focus.
        final ViewRootImpl viewRootImpl = getViewRootImpl();
        if (viewRootImpl != null) {
            final View accessFocusedView = viewRootImpl.getAccessibilityFocusedHost();
            if (accessFocusedView != null) {
                final View accessFocusedChild = findAccessibilityFocusedChild(accessFocusedView);
                if (accessFocusedChild != null) {
                    if (!dataChanged || isDirectChildHeaderOrFooter(accessFocusedChild)) {
                        // If the views won't be changing, try to maintain
                        // focus on the current view host and (if
                        // applicable) its virtual view.
                        accessibilityFocusLayoutRestoreView = accessFocusedView;
                        accessibilityFocusLayoutRestoreNode = viewRootImpl.getAccessibilityFocusedVirtualView();
                    } else {
                        // Otherwise, try to maintain focus at the same
                        // position.
                        accessibilityFocusPosition = getPositionForView(accessFocusedChild);
                    }
                }
            }
        }
        // Pull all children into the RecycleBin.
        // These views will be reused if possible
        final int firstPosition = mFirstPosition;
        final RecycleBin recycleBin = mRecycler;
        // reset the focus restoration
        View focusLayoutRestoreDirectChild = null;
        // already cached in mHeaderViews;
        if (dataChanged) {
            for (int i = 0; i < childCount; i++) {
                recycleBin.addScrapView(getChildAt(i), firstPosition + i);
            }
        } else {
            recycleBin.fillActiveViews(childCount, firstPosition);
        }
        // take focus back to us temporarily to avoid the eventual
        // call to clear focus when removing the focused child below
        // from messing things up when ViewAncestor assigns focus back
        // to someone else
        final View focusedChild = getFocusedChild();
        if (focusedChild != null) {
            // data hasn't changed, or if the focused position is a header or footer
            if (!dataChanged || isDirectChildHeaderOrFooter(focusedChild)) {
                focusLayoutRestoreDirectChild = focusedChild;
                // remember the specific view that had focus
                focusLayoutRestoreView = findFocus();
                if (focusLayoutRestoreView != null) {
                    // tell it we are going to mess with it
                    focusLayoutRestoreView.onStartTemporaryDetach();
                }
            }
            requestFocus();
        }
        // Clear out old views
        detachAllViewsFromParent();
        recycleBin.removeSkippedScrap();
        switch(mLayoutMode) {
            case LAYOUT_SET_SELECTION:
                if (newSel != null) {
                    sel = fillFromSelection(newSel.getTop(), childrenTop, childrenBottom);
                } else {
                    sel = fillFromMiddle(childrenTop, childrenBottom);
                }
                break;
            case LAYOUT_SYNC:
                sel = fillSpecific(mSyncPosition, mSpecificTop);
                break;
            case LAYOUT_FORCE_BOTTOM:
                sel = fillUp(mItemCount - 1, childrenBottom);
                adjustViewsUpOrDown();
                break;
            case LAYOUT_FORCE_TOP:
                mFirstPosition = 0;
                sel = fillFromTop(childrenTop);
                adjustViewsUpOrDown();
                break;
            case LAYOUT_SPECIFIC:
                sel = fillSpecific(reconcileSelectedPosition(), mSpecificTop);
                break;
            case LAYOUT_MOVE_SELECTION:
                sel = moveSelection(oldSel, newSel, delta, childrenTop, childrenBottom);
                break;
            default:
                if (childCount == 0) {
                    if (!mStackFromBottom) {
                        final int position = lookForSelectablePosition(0, true);
                        setSelectedPositionInt(position);
                        sel = fillFromTop(childrenTop);
                    } else {
                        final int position = lookForSelectablePosition(mItemCount - 1, false);
                        setSelectedPositionInt(position);
                        sel = fillUp(mItemCount - 1, childrenBottom);
                    }
                } else {
                    if (mSelectedPosition >= 0 && mSelectedPosition < mItemCount) {
                        sel = fillSpecific(mSelectedPosition, oldSel == null ? childrenTop : oldSel.getTop());
                    } else if (mFirstPosition < mItemCount) {
                        sel = fillSpecific(mFirstPosition, oldFirst == null ? childrenTop : oldFirst.getTop());
                    } else {
                        sel = fillSpecific(0, childrenTop);
                    }
                }
                break;
        }
        // Flush any cached views that did not get reused above
        recycleBin.scrapActiveViews();
        if (sel != null) {
            // are focusable
            if (mItemsCanFocus && hasFocus() && !sel.hasFocus()) {
                final boolean focusWasTaken = (sel == focusLayoutRestoreDirectChild && focusLayoutRestoreView != null && focusLayoutRestoreView.requestFocus()) || sel.requestFocus();
                if (!focusWasTaken) {
                    // selected item didn't take focus, fine, but still want
                    // to make sure something else outside of the selected view
                    // has focus
                    final View focused = getFocusedChild();
                    if (focused != null) {
                        focused.clearFocus();
                    }
                    positionSelector(INVALID_POSITION, sel);
                } else {
                    sel.setSelected(false);
                    mSelectorRect.setEmpty();
                }
            } else {
                positionSelector(INVALID_POSITION, sel);
            }
            mSelectedTop = sel.getTop();
        } else {
            if (mTouchMode > TOUCH_MODE_DOWN && mTouchMode < TOUCH_MODE_SCROLL) {
                View child = getChildAt(mMotionPosition - mFirstPosition);
                if (child != null)
                    positionSelector(mMotionPosition, child);
            } else {
                mSelectedTop = 0;
                mSelectorRect.setEmpty();
            }
            // focus (i.e. something focusable in touch mode)
            if (hasFocus() && focusLayoutRestoreView != null) {
                focusLayoutRestoreView.requestFocus();
            }
        }
        // Attempt to restore accessibility focus.
        if (accessibilityFocusLayoutRestoreView != null) {
            final AccessibilityNodeProvider provider = accessibilityFocusLayoutRestoreView.getAccessibilityNodeProvider();
            if ((accessibilityFocusLayoutRestoreNode != null) && (provider != null)) {
                final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityFocusLayoutRestoreNode.getSourceNodeId());
                provider.performAction(virtualViewId, AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
            } else {
                accessibilityFocusLayoutRestoreView.requestAccessibilityFocus();
            }
        } else if (accessibilityFocusPosition != INVALID_POSITION) {
            // Bound the position within the visible children.
            final int position = MathUtils.constrain((accessibilityFocusPosition - mFirstPosition), 0, (getChildCount() - 1));
            final View restoreView = getChildAt(position);
            if (restoreView != null) {
                restoreView.requestAccessibilityFocus();
            }
        }
        // our view hierarchy.
        if (focusLayoutRestoreView != null && focusLayoutRestoreView.getWindowToken() != null) {
            focusLayoutRestoreView.onFinishTemporaryDetach();
        }
        mLayoutMode = LAYOUT_NORMAL;
        mDataChanged = false;
        if (mPositionScrollAfterLayout != null) {
            post(mPositionScrollAfterLayout);
            mPositionScrollAfterLayout = null;
        }
        mNeedSync = false;
        setNextSelectedPositionInt(mSelectedPosition);
        updateScrollIndicators();
        if (mItemCount > 0) {
            checkSelectionChanged();
        }
        invokeOnItemScrollListener();
    } finally {
        if (!blockLayoutRequests) {
            mBlockLayoutRequests = false;
        }
    }
}

Example 38 with ViewRootImpl

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

the class TextView method onEditorAction.

/**
     * Called when an attached input method calls
     * {@link InputConnection#performEditorAction(int)
     * InputConnection.performEditorAction()}
     * for this text view.  The default implementation will call your action
     * listener supplied to {@link #setOnEditorActionListener}, or perform
     * a standard operation for {@link EditorInfo#IME_ACTION_NEXT
     * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS
     * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE
     * EditorInfo.IME_ACTION_DONE}.
     *
     * <p>For backwards compatibility, if no IME options have been set and the
     * text view would not normally advance focus on enter, then
     * the NEXT and DONE actions received here will be turned into an enter
     * key down/up pair to go through the normal key handling.
     *
     * @param actionCode The code of the action being performed.
     *
     * @see #setOnEditorActionListener
     */
public void onEditorAction(int actionCode) {
    final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType;
    if (ict != null) {
        if (ict.onEditorActionListener != null) {
            if (ict.onEditorActionListener.onEditorAction(this, actionCode, null)) {
                return;
            }
        }
        // app may be expecting.
        if (actionCode == EditorInfo.IME_ACTION_NEXT) {
            View v = focusSearch(FOCUS_FORWARD);
            if (v != null) {
                if (!v.requestFocus(FOCUS_FORWARD)) {
                    throw new IllegalStateException("focus search returned a view " + "that wasn't able to take focus!");
                }
            }
            return;
        } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) {
            View v = focusSearch(FOCUS_BACKWARD);
            if (v != null) {
                if (!v.requestFocus(FOCUS_BACKWARD)) {
                    throw new IllegalStateException("focus search returned a view " + "that wasn't able to take focus!");
                }
            }
            return;
        } else if (actionCode == EditorInfo.IME_ACTION_DONE) {
            InputMethodManager imm = InputMethodManager.peekInstance();
            if (imm != null && imm.isActive(this)) {
                imm.hideSoftInputFromWindow(getWindowToken(), 0);
            }
            return;
        }
    }
    ViewRootImpl viewRootImpl = getViewRootImpl();
    if (viewRootImpl != null) {
        long eventTime = SystemClock.uptimeMillis();
        viewRootImpl.dispatchKeyFromIme(new KeyEvent(eventTime, eventTime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE | KeyEvent.FLAG_EDITOR_ACTION));
        viewRootImpl.dispatchKeyFromIme(new KeyEvent(SystemClock.uptimeMillis(), eventTime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE | KeyEvent.FLAG_EDITOR_ACTION));
    }
}

Example 39 with ViewRootImpl

use of android.view.ViewRootImpl in project android_frameworks_base by DirtyUnicorns.

the class ActivityTransitionCoordinator method startInputWhenTransitionsComplete.

private void startInputWhenTransitionsComplete() {
    if (mViewsTransitionComplete && mSharedElementTransitionComplete) {
        final View decor = getDecor();
        if (decor != null) {
            final ViewRootImpl viewRoot = decor.getViewRootImpl();
            if (viewRoot != null) {
                viewRoot.setPausedForTransition(false);
            }
        }
        onTransitionsComplete();
    }
}

Example 40 with ViewRootImpl

use of android.view.ViewRootImpl in project android_frameworks_base by AOSPA.

the class GridView method layoutChildren.

@Override
protected void layoutChildren() {
    final boolean blockLayoutRequests = mBlockLayoutRequests;
    if (!blockLayoutRequests) {
        mBlockLayoutRequests = true;
    }
    try {
        super.layoutChildren();
        invalidate();
        if (mAdapter == null) {
            resetList();
            invokeOnItemScrollListener();
            return;
        }
        final int childrenTop = mListPadding.top;
        final int childrenBottom = mBottom - mTop - mListPadding.bottom;
        int childCount = getChildCount();
        int index;
        int delta = 0;
        View sel;
        View oldSel = null;
        View oldFirst = null;
        View newSel = null;
        // Remember stuff we will need down below
        switch(mLayoutMode) {
            case LAYOUT_SET_SELECTION:
                index = mNextSelectedPosition - mFirstPosition;
                if (index >= 0 && index < childCount) {
                    newSel = getChildAt(index);
                }
                break;
            case LAYOUT_FORCE_TOP:
            case LAYOUT_FORCE_BOTTOM:
            case LAYOUT_SPECIFIC:
            case LAYOUT_SYNC:
                break;
            case LAYOUT_MOVE_SELECTION:
                if (mNextSelectedPosition >= 0) {
                    delta = mNextSelectedPosition - mSelectedPosition;
                }
                break;
            default:
                // Remember the previously selected view
                index = mSelectedPosition - mFirstPosition;
                if (index >= 0 && index < childCount) {
                    oldSel = getChildAt(index);
                }
                // Remember the previous first child
                oldFirst = getChildAt(0);
        }
        boolean dataChanged = mDataChanged;
        if (dataChanged) {
            handleDataChanged();
        }
        // and calling it a day
        if (mItemCount == 0) {
            resetList();
            invokeOnItemScrollListener();
            return;
        }
        setSelectedPositionInt(mNextSelectedPosition);
        AccessibilityNodeInfo accessibilityFocusLayoutRestoreNode = null;
        View accessibilityFocusLayoutRestoreView = null;
        int accessibilityFocusPosition = INVALID_POSITION;
        // Remember which child, if any, had accessibility focus. This must
        // occur before recycling any views, since that will clear
        // accessibility focus.
        final ViewRootImpl viewRootImpl = getViewRootImpl();
        if (viewRootImpl != null) {
            final View focusHost = viewRootImpl.getAccessibilityFocusedHost();
            if (focusHost != null) {
                final View focusChild = getAccessibilityFocusedChild(focusHost);
                if (focusChild != null) {
                    if (!dataChanged || focusChild.hasTransientState() || mAdapterHasStableIds) {
                        // The views won't be changing, so try to maintain
                        // focus on the current host and virtual view.
                        accessibilityFocusLayoutRestoreView = focusHost;
                        accessibilityFocusLayoutRestoreNode = viewRootImpl.getAccessibilityFocusedVirtualView();
                    }
                    // Try to maintain focus at the same position.
                    accessibilityFocusPosition = getPositionForView(focusChild);
                }
            }
        }
        // Pull all children into the RecycleBin.
        // These views will be reused if possible
        final int firstPosition = mFirstPosition;
        final RecycleBin recycleBin = mRecycler;
        if (dataChanged) {
            for (int i = 0; i < childCount; i++) {
                recycleBin.addScrapView(getChildAt(i), firstPosition + i);
            }
        } else {
            recycleBin.fillActiveViews(childCount, firstPosition);
        }
        // Clear out old views
        detachAllViewsFromParent();
        recycleBin.removeSkippedScrap();
        switch(mLayoutMode) {
            case LAYOUT_SET_SELECTION:
                if (newSel != null) {
                    sel = fillFromSelection(newSel.getTop(), childrenTop, childrenBottom);
                } else {
                    sel = fillSelection(childrenTop, childrenBottom);
                }
                break;
            case LAYOUT_FORCE_TOP:
                mFirstPosition = 0;
                sel = fillFromTop(childrenTop);
                adjustViewsUpOrDown();
                break;
            case LAYOUT_FORCE_BOTTOM:
                sel = fillUp(mItemCount - 1, childrenBottom);
                adjustViewsUpOrDown();
                break;
            case LAYOUT_SPECIFIC:
                sel = fillSpecific(mSelectedPosition, mSpecificTop);
                break;
            case LAYOUT_SYNC:
                sel = fillSpecific(mSyncPosition, mSpecificTop);
                break;
            case LAYOUT_MOVE_SELECTION:
                // Move the selection relative to its old position
                sel = moveSelection(delta, childrenTop, childrenBottom);
                break;
            default:
                if (childCount == 0) {
                    if (!mStackFromBottom) {
                        setSelectedPositionInt(mAdapter == null || isInTouchMode() ? INVALID_POSITION : 0);
                        sel = fillFromTop(childrenTop);
                    } else {
                        final int last = mItemCount - 1;
                        setSelectedPositionInt(mAdapter == null || isInTouchMode() ? INVALID_POSITION : last);
                        sel = fillFromBottom(last, childrenBottom);
                    }
                } else {
                    if (mSelectedPosition >= 0 && mSelectedPosition < mItemCount) {
                        sel = fillSpecific(mSelectedPosition, oldSel == null ? childrenTop : oldSel.getTop());
                    } else if (mFirstPosition < mItemCount) {
                        sel = fillSpecific(mFirstPosition, oldFirst == null ? childrenTop : oldFirst.getTop());
                    } else {
                        sel = fillSpecific(0, childrenTop);
                    }
                }
                break;
        }
        // Flush any cached views that did not get reused above
        recycleBin.scrapActiveViews();
        if (sel != null) {
            positionSelector(INVALID_POSITION, sel);
            mSelectedTop = sel.getTop();
        } else {
            final boolean inTouchMode = mTouchMode > TOUCH_MODE_DOWN && mTouchMode < TOUCH_MODE_SCROLL;
            if (inTouchMode) {
                // If the user's finger is down, select the motion position.
                final View child = getChildAt(mMotionPosition - mFirstPosition);
                if (child != null) {
                    positionSelector(mMotionPosition, child);
                }
            } else if (mSelectedPosition != INVALID_POSITION) {
                // If we had previously positioned the selector somewhere,
                // put it back there. It might not match up with the data,
                // but it's transitioning out so it's not a big deal.
                final View child = getChildAt(mSelectorPosition - mFirstPosition);
                if (child != null) {
                    positionSelector(mSelectorPosition, child);
                }
            } else {
                // Otherwise, clear selection.
                mSelectedTop = 0;
                mSelectorRect.setEmpty();
            }
        }
        // Attempt to restore accessibility focus, if necessary.
        if (viewRootImpl != null) {
            final View newAccessibilityFocusedView = viewRootImpl.getAccessibilityFocusedHost();
            if (newAccessibilityFocusedView == null) {
                if (accessibilityFocusLayoutRestoreView != null && accessibilityFocusLayoutRestoreView.isAttachedToWindow()) {
                    final AccessibilityNodeProvider provider = accessibilityFocusLayoutRestoreView.getAccessibilityNodeProvider();
                    if (accessibilityFocusLayoutRestoreNode != null && provider != null) {
                        final int virtualViewId = AccessibilityNodeInfo.getVirtualDescendantId(accessibilityFocusLayoutRestoreNode.getSourceNodeId());
                        provider.performAction(virtualViewId, AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
                    } else {
                        accessibilityFocusLayoutRestoreView.requestAccessibilityFocus();
                    }
                } else if (accessibilityFocusPosition != INVALID_POSITION) {
                    // Bound the position within the visible children.
                    final int position = MathUtils.constrain(accessibilityFocusPosition - mFirstPosition, 0, getChildCount() - 1);
                    final View restoreView = getChildAt(position);
                    if (restoreView != null) {
                        restoreView.requestAccessibilityFocus();
                    }
                }
            }
        }
        mLayoutMode = LAYOUT_NORMAL;
        mDataChanged = false;
        if (mPositionScrollAfterLayout != null) {
            post(mPositionScrollAfterLayout);
            mPositionScrollAfterLayout = null;
        }
        mNeedSync = false;
        setNextSelectedPositionInt(mSelectedPosition);
        updateScrollIndicators();
        if (mItemCount > 0) {
            checkSelectionChanged();
        }
        invokeOnItemScrollListener();
    } finally {
        if (!blockLayoutRequests) {
            mBlockLayoutRequests = false;
        }
    }
}