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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3.touch;
import static android.view.Gravity.BOTTOM;
import static android.view.Gravity.CENTER_HORIZONTAL;
import static android.view.Gravity.END;
import static android.view.Gravity.START;
import static android.view.Gravity.TOP;
import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
import static com.android.launcher3.touch.SingleAxisSwipeDetector.VERTICAL;
import static com.android.launcher3.util.NavigationMode.THREE_BUTTONS;
import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
import android.content.res.Resources;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.ShapeDrawable;
import android.util.FloatProperty;
import android.util.Pair;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.VelocityTracker;
import android.view.View;
import android.view.accessibility.AccessibilityEvent;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.util.DisplayController;
import com.android.launcher3.util.SplitConfigurationOptions;
import com.android.launcher3.util.SplitConfigurationOptions.SplitBounds;
import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
import com.android.launcher3.util.SplitConfigurationOptions.StagePosition;
import com.android.launcher3.views.BaseDragLayer;
import java.util.List;
public class PortraitPagedViewHandler implements PagedOrientationHandler {
private final Matrix mTmpMatrix = new Matrix();
private final RectF mTmpRectF = new RectF();
@Override
public <T> T getPrimaryValue(T x, T y) {
return x;
}
@Override
public <T> T getSecondaryValue(T x, T y) {
return y;
}
@Override
public int getPrimaryValue(int x, int y) {
return x;
}
@Override
public int getSecondaryValue(int x, int y) {
return y;
}
@Override
public float getPrimaryValue(float x, float y) {
return x;
}
@Override
public float getSecondaryValue(float x, float y) {
return y;
}
@Override
public boolean isLayoutNaturalToLauncher() {
return true;
}
@Override
public void adjustFloatingIconStartVelocity(PointF velocity) {
//no-op
}
@Override
public void fixBoundsForHomeAnimStartRect(RectF outStartRect, DeviceProfile deviceProfile) {
if (outStartRect.left > deviceProfile.widthPx) {
outStartRect.offsetTo(0, outStartRect.top);
} else if (outStartRect.left < -deviceProfile.widthPx) {
outStartRect.offsetTo(0, outStartRect.top);
}
}
@Override
public <T> void setPrimary(T target, Int2DAction<T> action, int param) {
action.call(target, param, 0);
}
@Override
public <T> void setPrimary(T target, Float2DAction<T> action, float param) {
action.call(target, param, 0);
}
@Override
public <T> void setSecondary(T target, Float2DAction<T> action, float param) {
action.call(target, 0, param);
}
@Override
public <T> void set(T target, Int2DAction<T> action, int primaryParam,
int secondaryParam) {
action.call(target, primaryParam, secondaryParam);
}
@Override
public float getPrimaryDirection(MotionEvent event, int pointerIndex) {
return event.getX(pointerIndex);
}
@Override
public float getPrimaryVelocity(VelocityTracker velocityTracker, int pointerId) {
return velocityTracker.getXVelocity(pointerId);
}
@Override
public int getMeasuredSize(View view) {
return view.getMeasuredWidth();
}
@Override
public int getPrimarySize(View view) {
return view.getWidth();
}
@Override
public float getPrimarySize(RectF rect) {
return rect.width();
}
@Override
public float getStart(RectF rect) {
return rect.left;
}
@Override
public float getEnd(RectF rect) {
return rect.right;
}
@Override
public int getClearAllSidePadding(View view, boolean isRtl) {
return (isRtl ? view.getPaddingRight() : - view.getPaddingLeft()) / 2;
}
@Override
public int getSecondaryDimension(View view) {
return view.getHeight();
}
@Override
public FloatProperty<View> getPrimaryViewTranslate() {
return VIEW_TRANSLATE_X;
}
@Override
public FloatProperty<View> getSecondaryViewTranslate() {
return VIEW_TRANSLATE_Y;
}
@Override
public int getPrimaryScroll(View view) {
return view.getScrollX();
}
@Override
public float getPrimaryScale(View view) {
return view.getScaleX();
}
@Override
public void setMaxScroll(AccessibilityEvent event, int maxScroll) {
event.setMaxScrollX(maxScroll);
}
@Override
public boolean getRecentsRtlSetting(Resources resources) {
return !Utilities.isRtl(resources);
}
@Override
public float getDegreesRotated() {
return 0;
}
@Override
public int getRotation() {
return Surface.ROTATION_0;
}
@Override
public void setPrimaryScale(View view, float scale) {
view.setScaleX(scale);
}
@Override
public void setSecondaryScale(View view, float scale) {
view.setScaleY(scale);
}
@Override
public int getChildStart(View view) {
return view.getLeft();
}
@Override
public int getCenterForPage(View view, Rect insets) {
return (view.getPaddingTop() + view.getMeasuredHeight() + insets.top
- insets.bottom - view.getPaddingBottom()) / 2;
}
@Override
public int getScrollOffsetStart(View view, Rect insets) {
return insets.left + view.getPaddingLeft();
}
@Override
public int getScrollOffsetEnd(View view, Rect insets) {
return view.getWidth() - view.getPaddingRight() - insets.right;
}
public int getSecondaryTranslationDirectionFactor() {
return -1;
}
@Override
public int getSplitTranslationDirectionFactor(int stagePosition, DeviceProfile deviceProfile) {
if (deviceProfile.isLandscape && stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
return -1;
} else {
return 1;
}
}
@Override
public float getTaskMenuX(float x, View thumbnailView, int overScroll,
DeviceProfile deviceProfile) {
if (deviceProfile.isLandscape) {
return x + overScroll
+ (thumbnailView.getMeasuredWidth() - thumbnailView.getMeasuredHeight()) / 2f;
} else {
return x + overScroll;
}
}
@Override
public float getTaskMenuY(float y, View thumbnailView, int overScroll) {
return y;
}
@Override
public int getTaskMenuWidth(View view, DeviceProfile deviceProfile) {
return deviceProfile.isLandscape && !deviceProfile.isTablet
? view.getMeasuredHeight()
: view.getMeasuredWidth();
}
@Override
public void setTaskOptionsMenuLayoutOrientation(DeviceProfile deviceProfile,
LinearLayout taskMenuLayout, int dividerSpacing,
ShapeDrawable dividerDrawable) {
taskMenuLayout.setOrientation(LinearLayout.VERTICAL);
dividerDrawable.setIntrinsicHeight(dividerSpacing);
taskMenuLayout.setDividerDrawable(dividerDrawable);
}
@Override
public void setLayoutParamsForTaskMenuOptionItem(LinearLayout.LayoutParams lp,
LinearLayout viewGroup, DeviceProfile deviceProfile) {
viewGroup.setOrientation(LinearLayout.HORIZONTAL);
lp.width = LinearLayout.LayoutParams.MATCH_PARENT;
lp.height = WRAP_CONTENT;
}
@Override
public void setTaskMenuAroundTaskView(LinearLayout taskView, float margin) {
BaseDragLayer.LayoutParams lp = (BaseDragLayer.LayoutParams) taskView.getLayoutParams();
lp.topMargin += margin;
lp.leftMargin += margin;
}
@Override
public PointF getAdditionalInsetForTaskMenu(float margin) {
return new PointF(0, 0);
}
@Override
public void setSecondaryTaskMenuPosition(SplitBounds splitBounds, View taskView,
DeviceProfile deviceProfile, View primarySnaphotView, View taskMenuView) {
float topLeftTaskPlusDividerPercent = splitBounds.appsStackedVertically
? (splitBounds.topTaskPercent + splitBounds.dividerHeightPercent)
: (splitBounds.leftTaskPercent + splitBounds.dividerWidthPercent);
FrameLayout.LayoutParams snapshotParams =
(FrameLayout.LayoutParams) primarySnaphotView.getLayoutParams();
float additionalOffset;
if (deviceProfile.isLandscape) {
additionalOffset = (taskView.getWidth() - snapshotParams.leftMargin)
* topLeftTaskPlusDividerPercent;
taskMenuView.setX(taskMenuView.getX() + additionalOffset);
} else {
additionalOffset = (taskView.getHeight() - snapshotParams.topMargin)
* topLeftTaskPlusDividerPercent;
taskMenuView.setY(taskMenuView.getY() + additionalOffset);
}
}
@Override
public Pair<Float, Float> getDwbLayoutTranslations(int taskViewWidth,
int taskViewHeight, SplitBounds splitBounds, DeviceProfile deviceProfile,
View[] thumbnailViews, int desiredTaskId, View banner) {
float translationX = 0;
float translationY = 0;
FrameLayout.LayoutParams bannerParams = (FrameLayout.LayoutParams) banner.getLayoutParams();
banner.setPivotX(0);
banner.setPivotY(0);
banner.setRotation(getDegreesRotated());
if (splitBounds == null) {
// Single, fullscreen case
bannerParams.width = MATCH_PARENT;
bannerParams.gravity = BOTTOM | CENTER_HORIZONTAL;
return new Pair<>(translationX, translationY);
}
bannerParams.gravity = BOTTOM | ((deviceProfile.isLandscape) ? START : CENTER_HORIZONTAL);
// Set correct width
if (desiredTaskId == splitBounds.leftTopTaskId) {
bannerParams.width = thumbnailViews[0].getMeasuredWidth();
} else {
bannerParams.width = thumbnailViews[1].getMeasuredWidth();
}
// Set translations
if (deviceProfile.isLandscape) {
if (desiredTaskId == splitBounds.rightBottomTaskId) {
float leftTopTaskPercent = splitBounds.appsStackedVertically
? splitBounds.topTaskPercent
: splitBounds.leftTaskPercent;
float dividerThicknessPercent = splitBounds.appsStackedVertically
? splitBounds.dividerHeightPercent
: splitBounds.dividerWidthPercent;
translationX = ((taskViewWidth * leftTopTaskPercent)
+ (taskViewWidth * dividerThicknessPercent));
}
} else {
if (desiredTaskId == splitBounds.leftTopTaskId) {
FrameLayout.LayoutParams snapshotParams =
(FrameLayout.LayoutParams) thumbnailViews[0]
.getLayoutParams();
float bottomRightTaskPlusDividerPercent = splitBounds.appsStackedVertically
? (1f - splitBounds.topTaskPercent)
: (1f - splitBounds.leftTaskPercent);
translationY = -((taskViewHeight - snapshotParams.topMargin)
* bottomRightTaskPlusDividerPercent);
}
}
return new Pair<>(translationX, translationY);
}
/* ---------- The following are only used by TaskViewTouchHandler. ---------- */
@Override
public SingleAxisSwipeDetector.Direction getUpDownSwipeDirection() {
return VERTICAL;
}
@Override
public int getUpDirection(boolean isRtl) {
// Ignore rtl since it only affects X value displacement, Y displacement doesn't change
return SingleAxisSwipeDetector.DIRECTION_POSITIVE;
}
@Override
public boolean isGoingUp(float displacement, boolean isRtl) {
// Ignore rtl since it only affects X value displacement, Y displacement doesn't change
return displacement < 0;
}
@Override
public int getTaskDragDisplacementFactor(boolean isRtl) {
// Ignore rtl since it only affects X value displacement, Y displacement doesn't change
return 1;
}
/* -------------------- */
@Override
public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
boolean layoutChild) {
final int childWidth = child.getMeasuredWidth();
final int childRight = childStart + childWidth;
final int childHeight = child.getMeasuredHeight();
final int childTop = pageCenter - childHeight / 2;
if (layoutChild) {
child.layout(childStart, childTop, childRight, childTop + childHeight);
}
return new ChildBounds(childWidth, childHeight, childRight, childTop);
}
@Override
public int getDistanceToBottomOfRect(DeviceProfile dp, Rect rect) {
return dp.heightPx - rect.bottom;
}
@Override
public List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp) {
return Utilities.getSplitPositionOptions(dp);
}
@Override
public void getInitialSplitPlaceholderBounds(int placeholderHeight, int placeholderInset,
DeviceProfile dp, @StagePosition int stagePosition, Rect out) {
int screenWidth = dp.widthPx;
int screenHeight = dp.heightPx;
boolean pinToRight = stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
int insetThickness;
if (!dp.isLandscape) {
insetThickness = dp.getInsets().top;
} else {
insetThickness = pinToRight ? dp.getInsets().right : dp.getInsets().left;
}
out.set(0, 0, screenWidth, placeholderHeight + insetThickness);
if (!dp.isLandscape) {
// portrait, phone or tablet - spans width of screen, nothing else to do
out.inset(placeholderInset, 0);
// Adjust the top to account for content off screen. This will help to animate the view
// in with rounded corners.
int totalHeight = (int) (1.0f * screenHeight / 2 * (screenWidth - 2 * placeholderInset)
/ screenWidth);
out.top -= (totalHeight - placeholderHeight);
return;
}
// Now we rotate the portrait rect depending on what side we want pinned
float postRotateScale = (float) screenHeight / screenWidth;
mTmpMatrix.reset();
mTmpMatrix.postRotate(pinToRight ? 90 : 270);
mTmpMatrix.postTranslate(pinToRight ? screenWidth : 0, pinToRight ? 0 : screenWidth);
// The placeholder height stays constant after rotation, so we don't change width scale
mTmpMatrix.postScale(1, postRotateScale);
mTmpRectF.set(out);
mTmpMatrix.mapRect(mTmpRectF);
mTmpRectF.inset(0, placeholderInset);
mTmpRectF.roundOut(out);
// Adjust the top to account for content off screen. This will help to animate the view in
// with rounded corners.
int totalWidth = (int) (1.0f * screenWidth / 2 * (screenHeight - 2 * placeholderInset)
/ screenHeight);
int width = out.width();
if (pinToRight) {
out.right += totalWidth - width;
} else {
out.left -= totalWidth - width;
}
}
@Override
public void updateSplitIconParams(View out, float onScreenRectCenterX,
float onScreenRectCenterY, float fullscreenScaleX, float fullscreenScaleY,
int drawableWidth, int drawableHeight, DeviceProfile dp,
@StagePosition int stagePosition) {
boolean pinToRight = stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
if (!dp.isLandscape) {
float inset = dp.getInsets().top;
out.setX(Math.round(onScreenRectCenterX / fullscreenScaleX
- 1.0f * drawableWidth / 2));
out.setY(Math.round((onScreenRectCenterY + (inset / 2f)) / fullscreenScaleY
- 1.0f * drawableHeight / 2));
} else {
if (pinToRight) {
float inset = dp.getInsets().right;
out.setX(Math.round((onScreenRectCenterX - (inset / 2f)) / fullscreenScaleX
- 1.0f * drawableWidth / 2));
} else {
float inset = dp.getInsets().left;
out.setX(Math.round((onScreenRectCenterX + (inset / 2f)) / fullscreenScaleX
- 1.0f * drawableWidth / 2));
}
out.setY(Math.round(onScreenRectCenterY / fullscreenScaleY
- 1.0f * drawableHeight / 2));
}
}
@Override
public void setSplitInstructionsParams(View out, DeviceProfile dp, int splitInstructionsHeight,
int splitInstructionsWidth, int threeButtonNavShift) {
out.setPivotX(0);
out.setPivotY(splitInstructionsHeight);
out.setRotation(getDegreesRotated());
int distanceToEdge;
if ((DisplayController.getNavigationMode(out.getContext()) == THREE_BUTTONS)
&& (dp.isTwoPanels || dp.isTablet)) {
// If 3-button nav is active, align the splitInstructionsView with it.
distanceToEdge = dp.getTaskbarOffsetY()
+ ((dp.taskbarSize - splitInstructionsHeight) / 2);
} else {
// If 3-button nav is not active, set bottom margin according to spec.
if (dp.isPhone) {
if (dp.isLandscape) {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_phone_landscape);
} else {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_phone_portrait);
}
} else if (dp.isTwoPanels) {
if (dp.isLandscape) {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_twopanels_landscape);
} else {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_twopanels_portrait);
}
} else {
if (dp.isLandscape) {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_tablet_landscape);
} else {
distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_tablet_portrait);
}
}
}
// Center the view in case of unbalanced insets on left or right of screen
int insetCorrectionX = (dp.getInsets().right - dp.getInsets().left) / 2;
// Adjust for any insets on the bottom edge
int insetCorrectionY = dp.getInsets().bottom;
out.setTranslationX(insetCorrectionX + threeButtonNavShift);
out.setTranslationY(-distanceToEdge + insetCorrectionY);
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) out.getLayoutParams();
lp.gravity = CENTER_HORIZONTAL | BOTTOM;
out.setLayoutParams(lp);
}
@Override
public void getFinalSplitPlaceholderBounds(int splitDividerSize, DeviceProfile dp,
@StagePosition int stagePosition, Rect out1, Rect out2) {
int screenHeight = dp.heightPx;
int screenWidth = dp.widthPx;
out1.set(0, 0, screenWidth, screenHeight / 2 - splitDividerSize);
out2.set(0, screenHeight / 2 + splitDividerSize, screenWidth, screenHeight);
if (!dp.isLandscape) {
// Portrait - the window bounds are always top and bottom half
return;
}
// Now we rotate the portrait rect depending on what side we want pinned
boolean pinToRight = stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT;
float postRotateScale = (float) screenHeight / screenWidth;
mTmpMatrix.reset();
mTmpMatrix.postRotate(pinToRight ? 90 : 270);
mTmpMatrix.postTranslate(pinToRight ? screenHeight : 0, pinToRight ? 0 : screenWidth);
mTmpMatrix.postScale(1 / postRotateScale, postRotateScale);
mTmpRectF.set(out1);
mTmpMatrix.mapRect(mTmpRectF);
mTmpRectF.roundOut(out1);
mTmpRectF.set(out2);
mTmpMatrix.mapRect(mTmpRectF);
mTmpRectF.roundOut(out2);
}
@Override
public void setSplitTaskSwipeRect(DeviceProfile dp, Rect outRect,
SplitBounds splitInfo, int desiredStagePosition) {
boolean isLandscape = dp.isLandscape;
float topLeftTaskPercent = splitInfo.appsStackedVertically
? splitInfo.topTaskPercent
: splitInfo.leftTaskPercent;
float dividerBarPercent = splitInfo.appsStackedVertically
? splitInfo.dividerHeightPercent
: splitInfo.dividerWidthPercent;
if (desiredStagePosition == SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT) {
if (isLandscape) {
outRect.right = outRect.left + (int) (outRect.width() * topLeftTaskPercent);
} else {
outRect.bottom = outRect.top + (int) (outRect.height() * topLeftTaskPercent);
}
} else {
if (isLandscape) {
outRect.left += (int) (outRect.width() * (topLeftTaskPercent + dividerBarPercent));
} else {
outRect.top += (int) (outRect.height() * (topLeftTaskPercent + dividerBarPercent));
}
}
}
@Override
public void measureGroupedTaskViewThumbnailBounds(View primarySnapshot, View secondarySnapshot,
int parentWidth, int parentHeight, SplitBounds splitBoundsConfig,
DeviceProfile dp, boolean isRtl) {
int spaceAboveSnapshot = dp.overviewTaskThumbnailTopMarginPx;
int totalThumbnailHeight = parentHeight - spaceAboveSnapshot;
int dividerBar = splitBoundsConfig.appsStackedVertically
? (int) (splitBoundsConfig.dividerHeightPercent * parentHeight)
: (int) (splitBoundsConfig.dividerWidthPercent * parentWidth);
int primarySnapshotHeight;
int primarySnapshotWidth;
int secondarySnapshotHeight;
int secondarySnapshotWidth;
float taskPercent = splitBoundsConfig.appsStackedVertically ?
splitBoundsConfig.topTaskPercent : splitBoundsConfig.leftTaskPercent;
if (dp.isLandscape) {
primarySnapshotHeight = totalThumbnailHeight;
primarySnapshotWidth = (int) (parentWidth * taskPercent);
secondarySnapshotHeight = totalThumbnailHeight;
secondarySnapshotWidth = parentWidth - primarySnapshotWidth - dividerBar;
int translationX = primarySnapshotWidth + dividerBar;
if (isRtl) {
primarySnapshot.setTranslationX(-translationX);
secondarySnapshot.setTranslationX(0);
} else {
secondarySnapshot.setTranslationX(translationX);
primarySnapshot.setTranslationX(0);
}
secondarySnapshot.setTranslationY(spaceAboveSnapshot);
} else {
primarySnapshotWidth = parentWidth;
primarySnapshotHeight = (int) (totalThumbnailHeight * taskPercent);
secondarySnapshotWidth = parentWidth;
secondarySnapshotHeight = totalThumbnailHeight - primarySnapshotHeight - dividerBar;
int translationY = primarySnapshotHeight + spaceAboveSnapshot + dividerBar;
secondarySnapshot.setTranslationY(translationY);
secondarySnapshot.setTranslationX(0);
primarySnapshot.setTranslationX(0);
}
primarySnapshot.measure(
View.MeasureSpec.makeMeasureSpec(primarySnapshotWidth, View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(primarySnapshotHeight, View.MeasureSpec.EXACTLY));
secondarySnapshot.measure(
View.MeasureSpec.makeMeasureSpec(secondarySnapshotWidth, View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(secondarySnapshotHeight,
View.MeasureSpec.EXACTLY));
}
@Override
public void setTaskIconParams(FrameLayout.LayoutParams iconParams, int taskIconMargin,
int taskIconHeight, int thumbnailTopMargin, boolean isRtl) {
iconParams.gravity = TOP | CENTER_HORIZONTAL;
// Reset margins, since they may have been set on rotation
iconParams.leftMargin = iconParams.rightMargin = 0;
iconParams.topMargin = iconParams.bottomMargin = 0;
}
@Override
public void setSplitIconParams(View primaryIconView, View secondaryIconView,
int taskIconHeight, int primarySnapshotWidth, int primarySnapshotHeight,
int groupedTaskViewHeight, int groupedTaskViewWidth, boolean isRtl,
DeviceProfile deviceProfile, SplitBounds splitConfig) {
FrameLayout.LayoutParams primaryIconParams =
(FrameLayout.LayoutParams) primaryIconView.getLayoutParams();
FrameLayout.LayoutParams secondaryIconParams =
new FrameLayout.LayoutParams(primaryIconParams);
if (deviceProfile.isLandscape) {
// We calculate the "midpoint" of the thumbnail area, and place the icons there.
// This is the place where the thumbnail area splits by default, in a near-50/50 split.
// It is usually not exactly 50/50, due to insets/screen cutouts.
int fullscreenInsetThickness = deviceProfile.isSeascape()
? deviceProfile.getInsets().right
: deviceProfile.getInsets().left;
int fullscreenMidpointFromBottom = ((deviceProfile.widthPx
- fullscreenInsetThickness) / 2);
float midpointFromBottomPct = (float) fullscreenMidpointFromBottom
/ deviceProfile.widthPx;
float insetPct = (float) fullscreenInsetThickness / deviceProfile.widthPx;
int spaceAboveSnapshots = 0;
int overviewThumbnailAreaThickness = groupedTaskViewWidth - spaceAboveSnapshots;
int bottomToMidpointOffset = (int) (overviewThumbnailAreaThickness
* midpointFromBottomPct);
int insetOffset = (int) (overviewThumbnailAreaThickness * insetPct);
if (deviceProfile.isSeascape()) {
primaryIconParams.gravity = TOP | (isRtl ? END : START);
secondaryIconParams.gravity = TOP | (isRtl ? END : START);
if (splitConfig.initiatedFromSeascape) {
// if the split was initiated from seascape,
// the task on the right (secondary) is slightly larger
primaryIconView.setTranslationX(bottomToMidpointOffset - taskIconHeight);
secondaryIconView.setTranslationX(bottomToMidpointOffset);
} else {
// if not,
// the task on the left (primary) is slightly larger
primaryIconView.setTranslationX(bottomToMidpointOffset + insetOffset
- taskIconHeight);
secondaryIconView.setTranslationX(bottomToMidpointOffset + insetOffset);
}
} else {
primaryIconParams.gravity = TOP | (isRtl ? START : END);
secondaryIconParams.gravity = TOP | (isRtl ? START : END);
if (!splitConfig.initiatedFromSeascape) {
// if the split was initiated from landscape,
// the task on the left (primary) is slightly larger
primaryIconView.setTranslationX(-bottomToMidpointOffset);
secondaryIconView.setTranslationX(-bottomToMidpointOffset + taskIconHeight);
} else {
// if not,
// the task on the right (secondary) is slightly larger
primaryIconView.setTranslationX(-bottomToMidpointOffset - insetOffset);
secondaryIconView.setTranslationX(-bottomToMidpointOffset - insetOffset
+ taskIconHeight);
}
}
} else {
primaryIconParams.gravity = TOP | CENTER_HORIZONTAL;
// shifts icon half a width left (height is used here since icons are square)
primaryIconView.setTranslationX(-(taskIconHeight / 2f));
secondaryIconParams.gravity = TOP | CENTER_HORIZONTAL;
secondaryIconView.setTranslationX(taskIconHeight / 2f);
}
primaryIconView.setTranslationY(0);
secondaryIconView.setTranslationY(0);
primaryIconView.setLayoutParams(primaryIconParams);
secondaryIconView.setLayoutParams(secondaryIconParams);
}
@Override
public int getDefaultSplitPosition(DeviceProfile deviceProfile) {
if (!deviceProfile.isTablet) {
throw new IllegalStateException("Default position available only for large screens");
}
if (deviceProfile.isLandscape) {
return STAGE_POSITION_BOTTOM_OR_RIGHT;
} else {
return STAGE_POSITION_TOP_OR_LEFT;
}
}
@Override
public Pair<FloatProperty, FloatProperty> getSplitSelectTaskOffset(FloatProperty primary,
FloatProperty secondary, DeviceProfile deviceProfile) {
if (deviceProfile.isLandscape) { // or seascape
return new Pair<>(primary, secondary);
} else {
return new Pair<>(secondary, primary);
}
}
@Override
public float getFloatingTaskOffscreenTranslationTarget(View floatingTask, RectF onScreenRect,
@StagePosition int stagePosition, DeviceProfile dp) {
if (dp.isLandscape) {
float currentTranslationX = floatingTask.getTranslationX();
return stagePosition == STAGE_POSITION_TOP_OR_LEFT
? currentTranslationX - onScreenRect.width()
: currentTranslationX + onScreenRect.width();
} else {
float currentTranslationY = floatingTask.getTranslationY();
return currentTranslationY - onScreenRect.height();
}
}
@Override
public void setFloatingTaskPrimaryTranslation(View floatingTask, float translation,
DeviceProfile dp) {
if (dp.isLandscape) {
floatingTask.setTranslationX(translation);
} else {
floatingTask.setTranslationY(translation);
}
}
@Override
public Float getFloatingTaskPrimaryTranslation(View floatingTask, DeviceProfile dp) {
return dp.isLandscape
? floatingTask.getTranslationX()
: floatingTask.getTranslationY();
}
}