mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-02-20 03:08:19 +00:00
26e4d17a73
Previous implementation had space between the frame and the widget ie. letterboxing. Bug: 32176631 Change-Id: Ie50279f4edb94812120dea492aefa4f18218162f
539 lines
20 KiB
Java
539 lines
20 KiB
Java
package com.android.launcher3;
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import android.animation.AnimatorSet;
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import android.animation.ObjectAnimator;
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import android.animation.PropertyValuesHolder;
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import android.animation.ValueAnimator;
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import android.animation.ValueAnimator.AnimatorUpdateListener;
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import android.appwidget.AppWidgetHostView;
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import android.appwidget.AppWidgetProviderInfo;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.util.AttributeSet;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.View;
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import android.widget.FrameLayout;
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import com.android.launcher3.accessibility.DragViewStateAnnouncer;
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import com.android.launcher3.dragndrop.DragLayer;
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import com.android.launcher3.util.FocusLogic;
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import com.android.launcher3.util.TouchController;
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public class AppWidgetResizeFrame extends FrameLayout
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implements View.OnKeyListener, TouchController {
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private static final int SNAP_DURATION = 150;
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private static final float DIMMED_HANDLE_ALPHA = 0f;
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private static final float RESIZE_THRESHOLD = 0.66f;
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private static final Rect sTmpRect = new Rect();
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// Represents the cell size on the grid in the two orientations.
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private static Point[] sCellSize;
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private static final int HANDLE_COUNT = 4;
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private static final int INDEX_LEFT = 0;
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private static final int INDEX_TOP = 1;
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private static final int INDEX_RIGHT = 2;
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private static final int INDEX_BOTTOM = 3;
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private final Launcher mLauncher;
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private final DragViewStateAnnouncer mStateAnnouncer;
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private final View[] mDragHandles = new View[HANDLE_COUNT];
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private LauncherAppWidgetHostView mWidgetView;
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private CellLayout mCellLayout;
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private DragLayer mDragLayer;
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private Rect mWidgetPadding;
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private final int mBackgroundPadding;
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private final int mTouchTargetWidth;
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private final int[] mDirectionVector = new int[2];
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private final int[] mLastDirectionVector = new int[2];
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private final int[] mTmpPt = new int[2];
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private final IntRange mTempRange1 = new IntRange();
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private final IntRange mTempRange2 = new IntRange();
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private final IntRange mDeltaXRange = new IntRange();
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private final IntRange mBaselineX = new IntRange();
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private final IntRange mDeltaYRange = new IntRange();
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private final IntRange mBaselineY = new IntRange();
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private boolean mLeftBorderActive;
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private boolean mRightBorderActive;
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private boolean mTopBorderActive;
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private boolean mBottomBorderActive;
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private int mResizeMode;
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private int mRunningHInc;
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private int mRunningVInc;
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private int mMinHSpan;
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private int mMinVSpan;
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private int mDeltaX;
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private int mDeltaY;
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private int mDeltaXAddOn;
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private int mDeltaYAddOn;
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private int mTopTouchRegionAdjustment = 0;
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private int mBottomTouchRegionAdjustment = 0;
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private int mXDown, mYDown;
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public AppWidgetResizeFrame(Context context) {
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this(context, null);
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}
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public AppWidgetResizeFrame(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public AppWidgetResizeFrame(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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mLauncher = Launcher.getLauncher(context);
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mStateAnnouncer = DragViewStateAnnouncer.createFor(this);
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mBackgroundPadding = getResources()
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.getDimensionPixelSize(R.dimen.resize_frame_background_padding);
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mTouchTargetWidth = 2 * mBackgroundPadding;
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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for (int i = 0; i < HANDLE_COUNT; i ++) {
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mDragHandles[i] = getChildAt(i);
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}
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}
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public void setupForWidget(LauncherAppWidgetHostView widgetView, CellLayout cellLayout,
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DragLayer dragLayer) {
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mCellLayout = cellLayout;
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mWidgetView = widgetView;
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LauncherAppWidgetProviderInfo info = (LauncherAppWidgetProviderInfo)
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widgetView.getAppWidgetInfo();
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mResizeMode = info.resizeMode;
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mDragLayer = dragLayer;
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mMinHSpan = info.minSpanX;
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mMinVSpan = info.minSpanY;
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if (!info.isCustomWidget) {
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mWidgetPadding = AppWidgetHostView.getDefaultPaddingForWidget(getContext(),
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widgetView.getAppWidgetInfo().provider, null);
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} else {
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Resources r = getContext().getResources();
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int padding = r.getDimensionPixelSize(R.dimen.default_widget_padding);
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mWidgetPadding = new Rect(padding, padding, padding, padding);
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}
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if (mResizeMode == AppWidgetProviderInfo.RESIZE_HORIZONTAL) {
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mDragHandles[INDEX_TOP].setVisibility(GONE);
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mDragHandles[INDEX_BOTTOM].setVisibility(GONE);
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} else if (mResizeMode == AppWidgetProviderInfo.RESIZE_VERTICAL) {
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mDragHandles[INDEX_LEFT].setVisibility(GONE);
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mDragHandles[INDEX_RIGHT].setVisibility(GONE);
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}
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// When we create the resize frame, we first mark all cells as unoccupied. The appropriate
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// cells (same if not resized, or different) will be marked as occupied when the resize
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// frame is dismissed.
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mCellLayout.markCellsAsUnoccupiedForView(mWidgetView);
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setOnKeyListener(this);
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}
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public boolean beginResizeIfPointInRegion(int x, int y) {
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boolean horizontalActive = (mResizeMode & AppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0;
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boolean verticalActive = (mResizeMode & AppWidgetProviderInfo.RESIZE_VERTICAL) != 0;
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mLeftBorderActive = (x < mTouchTargetWidth) && horizontalActive;
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mRightBorderActive = (x > getWidth() - mTouchTargetWidth) && horizontalActive;
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mTopBorderActive = (y < mTouchTargetWidth + mTopTouchRegionAdjustment) && verticalActive;
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mBottomBorderActive = (y > getHeight() - mTouchTargetWidth + mBottomTouchRegionAdjustment)
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&& verticalActive;
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boolean anyBordersActive = mLeftBorderActive || mRightBorderActive
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|| mTopBorderActive || mBottomBorderActive;
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if (anyBordersActive) {
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mDragHandles[INDEX_LEFT].setAlpha(mLeftBorderActive ? 1.0f : DIMMED_HANDLE_ALPHA);
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mDragHandles[INDEX_RIGHT].setAlpha(mRightBorderActive ? 1.0f :DIMMED_HANDLE_ALPHA);
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mDragHandles[INDEX_TOP].setAlpha(mTopBorderActive ? 1.0f : DIMMED_HANDLE_ALPHA);
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mDragHandles[INDEX_BOTTOM].setAlpha(mBottomBorderActive ? 1.0f : DIMMED_HANDLE_ALPHA);
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}
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if (mLeftBorderActive) {
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mDeltaXRange.set(-getLeft(), getWidth() - 2 * mTouchTargetWidth);
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} else if (mRightBorderActive) {
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mDeltaXRange.set(2 * mTouchTargetWidth - getWidth(), mDragLayer.getWidth() - getRight());
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} else {
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mDeltaXRange.set(0, 0);
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}
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mBaselineX.set(getLeft(), getRight());
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if (mTopBorderActive) {
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mDeltaYRange.set(-getTop(), getHeight() - 2 * mTouchTargetWidth);
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} else if (mBottomBorderActive) {
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mDeltaYRange.set(2 * mTouchTargetWidth - getHeight(), mDragLayer.getHeight() - getBottom());
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} else {
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mDeltaYRange.set(0, 0);
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}
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mBaselineY.set(getTop(), getBottom());
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return anyBordersActive;
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}
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/**
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* Based on the deltas, we resize the frame.
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*/
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public void visualizeResizeForDelta(int deltaX, int deltaY) {
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mDeltaX = mDeltaXRange.clamp(deltaX);
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mDeltaY = mDeltaYRange.clamp(deltaY);
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DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
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mDeltaX = mDeltaXRange.clamp(deltaX);
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mBaselineX.applyDelta(mLeftBorderActive, mRightBorderActive, mDeltaX, mTempRange1);
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lp.x = mTempRange1.start;
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lp.width = mTempRange1.size();
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mDeltaY = mDeltaYRange.clamp(deltaY);
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mBaselineY.applyDelta(mTopBorderActive, mBottomBorderActive, mDeltaY, mTempRange1);
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lp.y = mTempRange1.start;
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lp.height = mTempRange1.size();
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resizeWidgetIfNeeded(false);
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requestLayout();
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}
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private static int getSpanIncrement(float deltaFrac) {
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return Math.abs(deltaFrac) > RESIZE_THRESHOLD ? Math.round(deltaFrac) : 0;
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}
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/**
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* Based on the current deltas, we determine if and how to resize the widget.
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*/
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private void resizeWidgetIfNeeded(boolean onDismiss) {
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float xThreshold = mCellLayout.getCellWidth();
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float yThreshold = mCellLayout.getCellHeight();
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int hSpanInc = getSpanIncrement((mDeltaX + mDeltaXAddOn) / xThreshold - mRunningHInc);
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int vSpanInc = getSpanIncrement((mDeltaY + mDeltaYAddOn) / yThreshold - mRunningVInc);
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if (!onDismiss && (hSpanInc == 0 && vSpanInc == 0)) return;
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mDirectionVector[0] = 0;
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mDirectionVector[1] = 0;
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) mWidgetView.getLayoutParams();
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int spanX = lp.cellHSpan;
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int spanY = lp.cellVSpan;
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int cellX = lp.useTmpCoords ? lp.tmpCellX : lp.cellX;
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int cellY = lp.useTmpCoords ? lp.tmpCellY : lp.cellY;
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// For each border, we bound the resizing based on the minimum width, and the maximum
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// expandability.
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mTempRange1.set(cellX, spanX + cellX);
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int hSpanDelta = mTempRange1.applyDeltaAndBound(mLeftBorderActive, mRightBorderActive,
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hSpanInc, mMinHSpan, mCellLayout.getCountX(), mTempRange2);
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cellX = mTempRange2.start;
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spanX = mTempRange2.size();
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if (hSpanDelta != 0) {
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mDirectionVector[0] = mLeftBorderActive ? -1 : 1;
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}
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mTempRange1.set(cellY, spanY + cellY);
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int vSpanDelta = mTempRange1.applyDeltaAndBound(mTopBorderActive, mBottomBorderActive,
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vSpanInc, mMinVSpan, mCellLayout.getCountY(), mTempRange2);
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cellY = mTempRange2.start;
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spanY = mTempRange2.size();
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if (vSpanDelta != 0) {
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mDirectionVector[1] = mTopBorderActive ? -1 : 1;
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}
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if (!onDismiss && vSpanDelta == 0 && hSpanDelta == 0) return;
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// We always want the final commit to match the feedback, so we make sure to use the
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// last used direction vector when committing the resize / reorder.
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if (onDismiss) {
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mDirectionVector[0] = mLastDirectionVector[0];
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mDirectionVector[1] = mLastDirectionVector[1];
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} else {
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mLastDirectionVector[0] = mDirectionVector[0];
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mLastDirectionVector[1] = mDirectionVector[1];
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}
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if (mCellLayout.createAreaForResize(cellX, cellY, spanX, spanY, mWidgetView,
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mDirectionVector, onDismiss)) {
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if (mStateAnnouncer != null && (lp.cellHSpan != spanX || lp.cellVSpan != spanY) ) {
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mStateAnnouncer.announce(
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mLauncher.getString(R.string.widget_resized, spanX, spanY));
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}
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lp.tmpCellX = cellX;
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lp.tmpCellY = cellY;
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lp.cellHSpan = spanX;
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lp.cellVSpan = spanY;
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mRunningVInc += vSpanDelta;
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mRunningHInc += hSpanDelta;
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if (!onDismiss) {
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updateWidgetSizeRanges(mWidgetView, mLauncher, spanX, spanY);
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}
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}
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mWidgetView.requestLayout();
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}
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static void updateWidgetSizeRanges(AppWidgetHostView widgetView, Launcher launcher,
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int spanX, int spanY) {
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getWidgetSizeRanges(launcher, spanX, spanY, sTmpRect);
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widgetView.updateAppWidgetSize(null, sTmpRect.left, sTmpRect.top,
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sTmpRect.right, sTmpRect.bottom);
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}
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public static Rect getWidgetSizeRanges(Context context, int spanX, int spanY, Rect rect) {
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if (sCellSize == null) {
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InvariantDeviceProfile inv = LauncherAppState.getInstance().getInvariantDeviceProfile();
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// Initiate cell sizes.
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sCellSize = new Point[2];
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sCellSize[0] = inv.landscapeProfile.getCellSize();
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sCellSize[1] = inv.portraitProfile.getCellSize();
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}
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if (rect == null) {
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rect = new Rect();
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}
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final float density = context.getResources().getDisplayMetrics().density;
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// Compute landscape size
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int landWidth = (int) ((spanX * sCellSize[0].x) / density);
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int landHeight = (int) ((spanY * sCellSize[0].y) / density);
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// Compute portrait size
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int portWidth = (int) ((spanX * sCellSize[1].x) / density);
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int portHeight = (int) ((spanY * sCellSize[1].y) / density);
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rect.set(portWidth, landHeight, landWidth, portHeight);
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return rect;
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}
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/**
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* This is the final step of the resize. Here we save the new widget size and position
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* to LauncherModel and animate the resize frame.
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*/
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public void commitResize() {
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resizeWidgetIfNeeded(true);
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requestLayout();
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}
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private void onTouchUp() {
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int xThreshold = mCellLayout.getCellWidth();
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int yThreshold = mCellLayout.getCellHeight();
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mDeltaXAddOn = mRunningHInc * xThreshold;
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mDeltaYAddOn = mRunningVInc * yThreshold;
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mDeltaX = 0;
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mDeltaY = 0;
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post(new Runnable() {
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@Override
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public void run() {
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snapToWidget(true);
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}
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});
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}
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public void snapToWidget(boolean animate) {
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DeviceProfile profile = mLauncher.getDeviceProfile();
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float scale = Math.min(profile.appWidgetScale.x, profile.appWidgetScale.y);
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mDragLayer.getViewRectRelativeToSelf(mWidgetView, sTmpRect);
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int newWidth = 2 * mBackgroundPadding
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+ (int) (scale * (sTmpRect.width() - mWidgetPadding.left - mWidgetPadding.right));
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int newHeight = 2 * mBackgroundPadding
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+ (int) (scale * (sTmpRect.height() - mWidgetPadding.top - mWidgetPadding.bottom));
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int newX = (int) (sTmpRect.left - mBackgroundPadding + scale * mWidgetPadding.left);
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int newY = (int) (sTmpRect.top - mBackgroundPadding + scale * mWidgetPadding.top);
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// We need to make sure the frame's touchable regions lie fully within the bounds of the
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// DragLayer. We allow the actual handles to be clipped, but we shift the touch regions
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// down accordingly to provide a proper touch target.
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if (newY < 0) {
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// In this case we shift the touch region down to start at the top of the DragLayer
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mTopTouchRegionAdjustment = -newY;
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} else {
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mTopTouchRegionAdjustment = 0;
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}
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if (newY + newHeight > mDragLayer.getHeight()) {
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// In this case we shift the touch region up to end at the bottom of the DragLayer
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mBottomTouchRegionAdjustment = -(newY + newHeight - mDragLayer.getHeight());
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} else {
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mBottomTouchRegionAdjustment = 0;
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}
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final DragLayer.LayoutParams lp = (DragLayer.LayoutParams) getLayoutParams();
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if (!animate) {
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lp.width = newWidth;
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lp.height = newHeight;
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lp.x = newX;
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lp.y = newY;
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for (int i = 0; i < HANDLE_COUNT; i++) {
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mDragHandles[i].setAlpha(1.0f);
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}
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requestLayout();
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} else {
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PropertyValuesHolder width = PropertyValuesHolder.ofInt("width", lp.width, newWidth);
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PropertyValuesHolder height = PropertyValuesHolder.ofInt("height", lp.height,
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newHeight);
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PropertyValuesHolder x = PropertyValuesHolder.ofInt("x", lp.x, newX);
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PropertyValuesHolder y = PropertyValuesHolder.ofInt("y", lp.y, newY);
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ObjectAnimator oa =
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LauncherAnimUtils.ofPropertyValuesHolder(lp, this, width, height, x, y);
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oa.addUpdateListener(new AnimatorUpdateListener() {
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public void onAnimationUpdate(ValueAnimator animation) {
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requestLayout();
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}
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});
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AnimatorSet set = LauncherAnimUtils.createAnimatorSet();
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set.play(oa);
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for (int i = 0; i < HANDLE_COUNT; i++) {
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set.play(LauncherAnimUtils.ofFloat(mDragHandles[i], ALPHA, 1.0f));
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}
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set.setDuration(SNAP_DURATION);
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set.start();
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}
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setFocusableInTouchMode(true);
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requestFocus();
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}
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@Override
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public boolean onKey(View v, int keyCode, KeyEvent event) {
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// Clear the frame and give focus to the widget host view when a directional key is pressed.
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if (FocusLogic.shouldConsume(keyCode)) {
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mDragLayer.clearResizeFrame();
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mWidgetView.requestFocus();
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return true;
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}
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return false;
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}
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private boolean handleTouchDown(MotionEvent ev) {
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Rect hitRect = new Rect();
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int x = (int) ev.getX();
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int y = (int) ev.getY();
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getHitRect(hitRect);
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if (hitRect.contains(x, y)) {
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if (beginResizeIfPointInRegion(x - getLeft(), y - getTop())) {
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mXDown = x;
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mYDown = y;
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return true;
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}
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}
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return false;
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}
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@Override
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public boolean onControllerTouchEvent(MotionEvent ev) {
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int action = ev.getAction();
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int x = (int) ev.getX();
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int y = (int) ev.getY();
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switch (action) {
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case MotionEvent.ACTION_DOWN:
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return handleTouchDown(ev);
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case MotionEvent.ACTION_MOVE:
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visualizeResizeForDelta(x - mXDown, y - mYDown);
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break;
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case MotionEvent.ACTION_CANCEL:
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case MotionEvent.ACTION_UP:
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visualizeResizeForDelta(x - mXDown, y - mYDown);
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onTouchUp();
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mXDown = mYDown = 0;
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break;
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}
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return true;
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}
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@Override
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public boolean onControllerInterceptTouchEvent(MotionEvent ev) {
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if (ev.getAction() == MotionEvent.ACTION_DOWN && handleTouchDown(ev)) {
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return true;
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}
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return false;
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}
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/**
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* A mutable class for describing the range of two int values.
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*/
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private static class IntRange {
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public int start, end;
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|
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public int clamp(int value) {
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return Utilities.boundToRange(value, start, end);
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|
}
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|
|
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public void set(int s, int e) {
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start = s;
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|
end = e;
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|
}
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|
|
|
public int size() {
|
|
return end - start;
|
|
}
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|
|
|
/**
|
|
* Moves either the start or end edge (but never both) by {@param delta} and sets the
|
|
* result in {@param out}
|
|
*/
|
|
public void applyDelta(boolean moveStart, boolean moveEnd, int delta, IntRange out) {
|
|
out.start = moveStart ? start + delta : start;
|
|
out.end = moveEnd ? end + delta : end;
|
|
}
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|
|
|
/**
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|
* Applies delta similar to {@link #applyDelta(boolean, boolean, int, IntRange)},
|
|
* with extra conditions.
|
|
* @param minSize minimum size after with the moving edge should not be shifted any further.
|
|
* For eg, if delta = -3 when moving the endEdge brings the size to less than
|
|
* minSize, only delta = -2 will applied
|
|
* @param maxEnd The maximum value to the end edge (start edge is always restricted to 0)
|
|
* @return the amount of increase when endEdge was moves and the amount of decrease when
|
|
* the start edge was moved.
|
|
*/
|
|
public int applyDeltaAndBound(boolean moveStart, boolean moveEnd, int delta,
|
|
int minSize, int maxEnd, IntRange out) {
|
|
applyDelta(moveStart, moveEnd, delta, out);
|
|
if (start < 0) {
|
|
out.start = 0;
|
|
}
|
|
if (end > maxEnd) {
|
|
out.end = maxEnd;
|
|
}
|
|
if (out.size() < minSize) {
|
|
if (moveStart) {
|
|
out.start = out.end - minSize;
|
|
} else if (moveEnd) {
|
|
out.end = out.start + minSize;
|
|
}
|
|
}
|
|
return moveEnd ? out.size() - size() : size() - out.size();
|
|
}
|
|
}
|
|
}
|