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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_VERTICAL;
import static android.view.Gravity.END;
import static android.view.Gravity.LEFT;
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.HORIZONTAL;
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 static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_UNDEFINED;
import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_TYPE_MAIN;
import android.content.res.Resources;
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.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.Collections;
import java.util.List;
public class LandscapePagedViewHandler implements PagedOrientationHandler {
@Override
public <T> T getPrimaryValue(T x, T y) {
return y;
}
@Override
public <T> T getSecondaryValue(T x, T y) {
return x;
}
@Override
public int getPrimaryValue(int x, int y) {
return y;
}
@Override
public int getSecondaryValue(int x, int y) {
return x;
}
@Override
public float getPrimaryValue(float x, float y) {
return y;
}
@Override
public float getSecondaryValue(float x, float y) {
return x;
}
@Override
public boolean isLayoutNaturalToLauncher() {
return false;
}
@Override
public void adjustFloatingIconStartVelocity(PointF velocity) {
float oldX = velocity.x;
float oldY = velocity.y;
velocity.set(-oldY, oldX);
}
@Override
public void fixBoundsForHomeAnimStartRect(RectF outStartRect, DeviceProfile deviceProfile) {
// We don't need to check the "top" value here because the startRect is in the orientation
// of the app, not of the fixed portrait launcher.
if (outStartRect.left > deviceProfile.heightPx) {
outStartRect.offsetTo(0, outStartRect.top);
} else if (outStartRect.left < -deviceProfile.heightPx) {
outStartRect.offsetTo(0, outStartRect.top);
}
}
@Override
public <T> void setPrimary(T target, Int2DAction<T> action, int param) {
action.call(target, 0, param);
}
@Override
public <T> void setPrimary(T target, Float2DAction<T> action, float param) {
action.call(target, 0, param);
}
@Override
public <T> void setSecondary(T target, Float2DAction<T> action, float param) {
action.call(target, param, 0);
}
@Override
public <T> void set(T target, Int2DAction<T> action, int primaryParam,
int secondaryParam) {
action.call(target, secondaryParam, primaryParam);
}
@Override
public float getPrimaryDirection(MotionEvent event, int pointerIndex) {
return event.getY(pointerIndex);
}
@Override
public float getPrimaryVelocity(VelocityTracker velocityTracker, int pointerId) {
return velocityTracker.getYVelocity(pointerId);
}
@Override
public int getMeasuredSize(View view) {
return view.getMeasuredHeight();
}
@Override
public int getPrimarySize(View view) {
return view.getHeight();
}
@Override
public float getPrimarySize(RectF rect) {
return rect.height();
}
@Override
public float getStart(RectF rect) {
return rect.top;
}
@Override
public float getEnd(RectF rect) {
return rect.bottom;
}
@Override
public int getClearAllSidePadding(View view, boolean isRtl) {
return (isRtl ? view.getPaddingBottom() : - view.getPaddingTop()) / 2;
}
@Override
public int getSecondaryDimension(View view) {
return view.getWidth();
}
@Override
public FloatProperty<View> getPrimaryViewTranslate() {
return VIEW_TRANSLATE_Y;
}
@Override
public FloatProperty<View> getSecondaryViewTranslate() {
return VIEW_TRANSLATE_X;
}
@Override
public int getPrimaryScroll(View view) {
return view.getScrollY();
}
@Override
public float getPrimaryScale(View view) {
return view.getScaleY();
}
@Override
public void setMaxScroll(AccessibilityEvent event, int maxScroll) {
event.setMaxScrollY(maxScroll);
}
@Override
public boolean getRecentsRtlSetting(Resources resources) {
return !Utilities.isRtl(resources);
}
@Override
public float getDegreesRotated() {
return 90;
}
@Override
public int getRotation() {
return Surface.ROTATION_90;
}
@Override
public void setPrimaryScale(View view, float scale) {
view.setScaleY(scale);
}
@Override
public void setSecondaryScale(View view, float scale) {
view.setScaleX(scale);
}
@Override
public int getChildStart(View view) {
return view.getTop();
}
@Override
public int getCenterForPage(View view, Rect insets) {
return (view.getPaddingLeft() + view.getMeasuredWidth() + insets.left
- insets.right - view.getPaddingRight()) / 2;
}
@Override
public int getScrollOffsetStart(View view, Rect insets) {
return insets.top + view.getPaddingTop();
}
@Override
public int getScrollOffsetEnd(View view, Rect insets) {
return view.getHeight() - view.getPaddingBottom() - insets.bottom;
}
public int getSecondaryTranslationDirectionFactor() {
return 1;
}
@Override
public int getSplitTranslationDirectionFactor(int stagePosition, DeviceProfile deviceProfile) {
if (stagePosition == STAGE_POSITION_BOTTOM_OR_RIGHT) {
return -1;
} else {
return 1;
}
}
@Override
public float getTaskMenuX(float x, View thumbnailView,
DeviceProfile deviceProfile, float taskInsetMargin) {
return thumbnailView.getMeasuredWidth() + x - taskInsetMargin;
}
@Override
public float getTaskMenuY(float y, View thumbnailView, int stagePosition,
View taskMenuView, float taskInsetMargin) {
BaseDragLayer.LayoutParams lp = (BaseDragLayer.LayoutParams) taskMenuView.getLayoutParams();
int taskMenuWidth = lp.width;
if (stagePosition == STAGE_POSITION_UNDEFINED) {
return y + taskInsetMargin
+ (thumbnailView.getMeasuredHeight() - taskMenuWidth) / 2f;
} else {
return y + taskInsetMargin;
}
}
@Override
public int getTaskMenuWidth(View thumbnailView, DeviceProfile deviceProfile,
@StagePosition int stagePosition) {
if (stagePosition == SplitConfigurationOptions.STAGE_POSITION_UNDEFINED) {
return thumbnailView.getMeasuredWidth();
} else {
return thumbnailView.getMeasuredHeight();
}
}
@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) {
// Phone fake landscape
viewGroup.setOrientation(LinearLayout.HORIZONTAL);
lp.width = MATCH_PARENT;
lp.height = WRAP_CONTENT;
}
@Override
public Pair<Float, Float> getDwbLayoutTranslations(int taskViewWidth,
int taskViewHeight, SplitBounds splitBounds, DeviceProfile deviceProfile,
View[] thumbnailViews, int desiredTaskId, View banner) {
boolean isRtl = banner.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
float translationX = 0;
float translationY = 0;
FrameLayout.LayoutParams bannerParams = (FrameLayout.LayoutParams) banner.getLayoutParams();
banner.setPivotX(0);
banner.setPivotY(0);
banner.setRotation(getDegreesRotated());
translationX = banner.getHeight();
FrameLayout.LayoutParams snapshotParams =
(FrameLayout.LayoutParams) thumbnailViews[0]
.getLayoutParams();
bannerParams.gravity = TOP | (isRtl ? END : START);
if (splitBounds == null) {
// Single, fullscreen case
bannerParams.width = taskViewHeight - snapshotParams.topMargin;
return new Pair<>(translationX, Integer.valueOf(snapshotParams.topMargin).floatValue());
}
// Set correct width
if (desiredTaskId == splitBounds.leftTopTaskId) {
bannerParams.width = thumbnailViews[0].getMeasuredHeight();
} else {
bannerParams.width = thumbnailViews[1].getMeasuredHeight();
}
// Set translations
if (desiredTaskId == splitBounds.rightBottomTaskId) {
float topLeftTaskPlusDividerPercent = splitBounds.appsStackedVertically
? (splitBounds.topTaskPercent + splitBounds.dividerHeightPercent)
: (splitBounds.leftTaskPercent + splitBounds.dividerWidthPercent);
translationY = snapshotParams.topMargin
+ ((taskViewHeight - snapshotParams.topMargin) * topLeftTaskPlusDividerPercent);
}
if (desiredTaskId == splitBounds.leftTopTaskId) {
translationY = snapshotParams.topMargin;
}
return new Pair<>(translationX, translationY);
}
/* ---------- The following are only used by TaskViewTouchHandler. ---------- */
@Override
public SingleAxisSwipeDetector.Direction getUpDownSwipeDirection() {
return HORIZONTAL;
}
@Override
public int getUpDirection(boolean isRtl) {
return isRtl ? SingleAxisSwipeDetector.DIRECTION_NEGATIVE
: SingleAxisSwipeDetector.DIRECTION_POSITIVE;
}
@Override
public boolean isGoingUp(float displacement, boolean isRtl) {
return isRtl ? displacement < 0 : displacement > 0;
}
@Override
public int getTaskDragDisplacementFactor(boolean isRtl) {
return isRtl ? 1 : -1;
}
/* -------------------- */
@Override
public ChildBounds getChildBounds(View child, int childStart, int pageCenter,
boolean layoutChild) {
final int childHeight = child.getMeasuredHeight();
final int childBottom = childStart + childHeight;
final int childWidth = child.getMeasuredWidth();
final int childLeft = pageCenter - childWidth/ 2;
if (layoutChild) {
child.layout(childLeft, childStart, childLeft + childWidth, childBottom);
}
return new ChildBounds(childHeight, childWidth, childBottom, childLeft);
}
@SuppressWarnings("SuspiciousNameCombination")
@Override
public int getDistanceToBottomOfRect(DeviceProfile dp, Rect rect) {
return rect.left;
}
@Override
public List<SplitPositionOption> getSplitPositionOptions(DeviceProfile dp) {
// Add "left" side of phone which is actually the top
return Collections.singletonList(new SplitPositionOption(
R.drawable.ic_split_horizontal, R.string.recent_task_option_split_screen,
STAGE_POSITION_TOP_OR_LEFT, STAGE_TYPE_MAIN));
}
@Override
public void getInitialSplitPlaceholderBounds(int placeholderHeight, int placeholderInset,
DeviceProfile dp, @StagePosition int stagePosition, Rect out) {
// In fake land/seascape, the placeholder always needs to go to the "top" of the device,
// which is the same bounds as 0 rotation.
int width = dp.widthPx;
int insetSizeAdjustment = getPlaceholderSizeAdjustment(dp);
out.set(0, 0, width, placeholderHeight + insetSizeAdjustment);
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 screenWidth = dp.widthPx;
int screenHeight = dp.heightPx;
int totalHeight = (int) (1.0f * screenHeight / 2 * (screenWidth - 2 * placeholderInset)
/ screenWidth);
out.top -= (totalHeight - placeholderHeight);
}
@Override
public void updateSplitIconParams(View out, float onScreenRectCenterX,
float onScreenRectCenterY, float fullscreenScaleX, float fullscreenScaleY,
int drawableWidth, int drawableHeight, DeviceProfile dp,
@StagePosition int stagePosition) {
float insetAdjustment = getPlaceholderSizeAdjustment(dp) / 2f;
out.setX(onScreenRectCenterX / fullscreenScaleX
- 1.0f * drawableWidth / 2);
out.setY((onScreenRectCenterY + insetAdjustment) / fullscreenScaleY
- 1.0f * drawableHeight / 2);
}
/**
* The split placeholder comes with a default inset to buffer the icon from the top of the
* screen. But if the device already has a large inset (from cutouts etc), use that instead.
*/
private int getPlaceholderSizeAdjustment(DeviceProfile dp) {
return Math.max(dp.getInsets().top - dp.splitPlaceholderInset, 0);
}
@Override
public void setSplitInstructionsParams(View out, DeviceProfile dp, int splitInstructionsHeight,
int splitInstructionsWidth) {
out.setPivotX(0);
out.setPivotY(splitInstructionsHeight);
out.setRotation(getDegreesRotated());
int distanceToEdge = out.getResources().getDimensionPixelSize(
R.dimen.split_instructions_bottom_margin_phone_landscape);
// Adjust for any insets on the left edge
int insetCorrectionX = dp.getInsets().left;
// Center the view in case of unbalanced insets on top or bottom of screen
int insetCorrectionY = (dp.getInsets().bottom - dp.getInsets().top) / 2;
out.setTranslationX(distanceToEdge - insetCorrectionX);
out.setTranslationY(((-splitInstructionsHeight - splitInstructionsWidth) / 2f)
+ insetCorrectionY);
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) out.getLayoutParams();
// Setting gravity to LEFT instead of the lint-recommended START because we always want this
// view to be screen-left when phone is in landscape, regardless of the RtL setting.
lp.gravity = LEFT | CENTER_VERTICAL;
out.setLayoutParams(lp);
}
@Override
public void getFinalSplitPlaceholderBounds(int splitDividerSize, DeviceProfile dp,
@StagePosition int stagePosition, Rect out1, Rect out2) {
// In fake land/seascape, the window bounds are always top and bottom half
int screenHeight = dp.heightPx;
int screenWidth = dp.widthPx;
out1.set(0, 0, screenWidth, screenHeight / 2 - splitDividerSize);
out2.set(0, screenHeight / 2 + splitDividerSize, screenWidth, screenHeight);
}
@Override
public void setSplitTaskSwipeRect(DeviceProfile dp, Rect outRect,
SplitBounds splitInfo, int desiredStagePosition) {
float topLeftTaskPercent = splitInfo.appsStackedVertically
? splitInfo.topTaskPercent
: splitInfo.leftTaskPercent;
float dividerBarPercent = splitInfo.appsStackedVertically
? splitInfo.dividerHeightPercent
: splitInfo.dividerWidthPercent;
if (desiredStagePosition == SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT) {
outRect.bottom = outRect.top + (int) (outRect.height() * topLeftTaskPercent);
} 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 = Math.round(totalThumbnailHeight * (splitBoundsConfig.appsStackedVertically
? splitBoundsConfig.dividerHeightPercent
: splitBoundsConfig.dividerWidthPercent));
int primarySnapshotHeight;
int primarySnapshotWidth;
int secondarySnapshotHeight;
int secondarySnapshotWidth;
float taskPercent = splitBoundsConfig.appsStackedVertically ?
splitBoundsConfig.topTaskPercent : splitBoundsConfig.leftTaskPercent;
primarySnapshotWidth = parentWidth;
primarySnapshotHeight = (int) (totalThumbnailHeight * taskPercent);
secondarySnapshotWidth = parentWidth;
secondarySnapshotHeight = totalThumbnailHeight - primarySnapshotHeight - dividerBar;
secondarySnapshot.setTranslationY(primarySnapshotHeight + spaceAboveSnapshot + dividerBar);
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 = (isRtl ? START : END) | CENTER_VERTICAL;
iconParams.rightMargin = -taskIconHeight - taskIconMargin / 2;
iconParams.leftMargin = 0;
iconParams.topMargin = thumbnailTopMargin / 2;
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);
// 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.getInsets().top
- deviceProfile.getInsets().bottom;
int fullscreenMidpointFromBottom = ((deviceProfile.heightPx - fullscreenInsetThickness)
/ 2);
float midpointFromBottomPct = (float) fullscreenMidpointFromBottom / deviceProfile.heightPx;
float insetPct = (float) fullscreenInsetThickness / deviceProfile.heightPx;
int spaceAboveSnapshots = deviceProfile.overviewTaskThumbnailTopMarginPx;
int overviewThumbnailAreaThickness = groupedTaskViewHeight - spaceAboveSnapshots;
int bottomToMidpointOffset = (int) (overviewThumbnailAreaThickness * midpointFromBottomPct);
int insetOffset = (int) (overviewThumbnailAreaThickness * insetPct);
primaryIconParams.gravity = BOTTOM | (isRtl ? START : END);
secondaryIconParams.gravity = BOTTOM | (isRtl ? START : END);
primaryIconView.setTranslationX(0);
secondaryIconView.setTranslationX(0);
if (splitConfig.initiatedFromSeascape) {
// if the split was initiated from seascape,
// the task on the right (secondary) is slightly larger
primaryIconView.setTranslationY(-bottomToMidpointOffset - insetOffset);
secondaryIconView.setTranslationY(-bottomToMidpointOffset - insetOffset
+ taskIconHeight);
} else {
// if not,
// the task on the left (primary) is slightly larger
primaryIconView.setTranslationY(-bottomToMidpointOffset);
secondaryIconView.setTranslationY(-bottomToMidpointOffset + taskIconHeight);
}
primaryIconView.setLayoutParams(primaryIconParams);
secondaryIconView.setLayoutParams(secondaryIconParams);
}
@Override
public int getDefaultSplitPosition(DeviceProfile deviceProfile) {
throw new IllegalStateException("Default position not available in fake landscape");
}
@Override
public Pair<FloatProperty, FloatProperty> getSplitSelectTaskOffset(FloatProperty primary,
FloatProperty secondary, DeviceProfile deviceProfile) {
return new Pair<>(primary, secondary);
}
@Override
public float getFloatingTaskOffscreenTranslationTarget(View floatingTask, RectF onScreenRect,
@StagePosition int stagePosition, DeviceProfile dp) {
float currentTranslationY = floatingTask.getTranslationY();
return currentTranslationY - onScreenRect.height();
}
@Override
public void setFloatingTaskPrimaryTranslation(View floatingTask, float translation,
DeviceProfile dp) {
floatingTask.setTranslationY(translation);
}
@Override
public Float getFloatingTaskPrimaryTranslation(View floatingTask, DeviceProfile dp) {
return floatingTask.getTranslationY();
}
}