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/*
* Copyright (C) 2017 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.uioverrides;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.uioverrides.OverviewState.WORKSPACE_SCALE_ON_SCROLL;
import static com.android.quickstep.RecentsView.SCROLL_TYPE_WORKSPACE;
import android.animation.FloatArrayEvaluator;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.FrameLayout;
import com.android.launcher3.Launcher;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.Workspace;
import com.android.launcher3.widget.WidgetsFullSheet;
import com.android.quickstep.RecentsView;
import com.android.quickstep.RecentsView.PageCallbacks;
import com.android.quickstep.RecentsView.ScrollState;
public class WorkspaceCard extends FrameLayout implements PageCallbacks, OnClickListener {
private final Rect mTempRect = new Rect();
private final float[] mEvaluatedFloats = new float[3];
private final FloatArrayEvaluator mEvaluator = new FloatArrayEvaluator(mEvaluatedFloats);
// UI related information
private float[] mScaleAndTranslatePage0, mScaleAndTranslatePage1;
private boolean mUIDataValid = false;
private Launcher mLauncher;
private Workspace mWorkspace;
private boolean mIsWorkspaceScrollingEnabled;
private View mWorkspaceClickTarget;
private View mWidgetsButton;
private boolean mLayoutHorizontal;
public WorkspaceCard(Context context) {
super(context);
}
public WorkspaceCard(Context context, AttributeSet attrs) {
super(context, attrs);
}
public WorkspaceCard(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mWorkspaceClickTarget = findViewById(R.id.workspace_click_target);
mWidgetsButton = findViewById(R.id.widget_button);
mWorkspaceClickTarget.setOnClickListener(this);
mWidgetsButton.setOnClickListener(this);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// We measure the dimensions of the PagedView to be larger than the pages so that when we
// zoom out (and scale down), the view is still contained in the parent
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
if (widthMode == MeasureSpec.UNSPECIFIED || heightMode == MeasureSpec.UNSPECIFIED) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return;
}
// Return early if we aren't given a proper dimension
if (widthSize <= 0 || heightSize <= 0) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return;
}
float workspaceWidth = mWorkspace.getNormalChildWidth();
float workspaceHeight = mWorkspace.getNormalChildHeight();
int availableWidth = widthSize - getPaddingLeft() - getPaddingRight();
float scaleX = availableWidth / workspaceWidth;
int availableHeight = heightSize - getPaddingTop() - getPaddingBottom();
float scaleY = availableHeight / workspaceHeight;
if (scaleX < scaleY) {
mLayoutHorizontal = false;
int childWidthSpec = MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.EXACTLY);
int pageHeight = Math.round(workspaceHeight * scaleX);
mWorkspaceClickTarget.measure(childWidthSpec,
MeasureSpec.makeMeasureSpec(pageHeight, MeasureSpec.EXACTLY));
int buttonHeight = availableHeight - pageHeight;
mWidgetsButton.measure(childWidthSpec,
MeasureSpec.makeMeasureSpec(buttonHeight, MeasureSpec.EXACTLY));
} else {
mLayoutHorizontal = true;
int childHeightSpec = MeasureSpec.makeMeasureSpec(availableHeight, MeasureSpec.EXACTLY);
int pageWidth = Math.round(workspaceWidth * scaleY);
mWorkspaceClickTarget.measure(
MeasureSpec.makeMeasureSpec(pageWidth, MeasureSpec.EXACTLY), childHeightSpec);
int buttonWidth = availableWidth - pageWidth;
mWidgetsButton.measure(
MeasureSpec.makeMeasureSpec(buttonWidth, MeasureSpec.EXACTLY), childHeightSpec);
}
setMeasuredDimension(widthSize, heightSize);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
int x = getPaddingLeft();
int y = getPaddingTop();
if (mLayoutHorizontal) {
final View first, second;
if (Utilities.isRtl(getResources())) {
first = mWidgetsButton;
second = mWorkspaceClickTarget;
} else {
first = mWorkspaceClickTarget;
second = mWidgetsButton;
}
int x2 = x + first.getMeasuredWidth();
first.layout(x, y,
x2, y + first.getMeasuredHeight());
second.layout(x2, y,
x2 + second.getMeasuredWidth(),
y + second.getMeasuredHeight());
} else {
int y2 = y + mWorkspaceClickTarget.getMeasuredHeight();
mWorkspaceClickTarget.layout(x, y,
x + mWorkspaceClickTarget.getMeasuredWidth(), y2);
mWidgetsButton.layout(x, y2,
x + mWidgetsButton.getMeasuredWidth(),
y2 + mWidgetsButton.getMeasuredHeight());
}
mUIDataValid = false;
}
@Override
public void onClick(View view) {
if (view == mWorkspaceClickTarget) {
mLauncher.getStateManager().goToState(NORMAL);
} else if (view == mWidgetsButton) {
WidgetsFullSheet.show(mLauncher, true);
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mUIDataValid = false;
}
public void setup(Launcher launcher) {
mLauncher = launcher;
mWorkspace = mLauncher.getWorkspace();
}
public void setWorkspaceScrollingEnabled(boolean isEnabled) {
mIsWorkspaceScrollingEnabled = isEnabled;
}
@Override
public int onPageScroll(ScrollState scrollState) {
float factor = scrollState.linearInterpolation;
float scale = factor * WORKSPACE_SCALE_ON_SCROLL + (1 - factor);
setScaleX(scale);
setScaleY(scale);
float translateX = scrollState.distanceFromScreenCenter;
if (mIsWorkspaceScrollingEnabled) {
initUiData();
mEvaluator.evaluate(factor, mScaleAndTranslatePage0, mScaleAndTranslatePage1);
mWorkspace.setScaleX(mEvaluatedFloats[0]);
mWorkspace.setScaleY(mEvaluatedFloats[0]);
mWorkspace.setTranslationX(mEvaluatedFloats[1]);
mWorkspace.setTranslationY(mEvaluatedFloats[2]);
translateX += mEvaluatedFloats[1] - mScaleAndTranslatePage0[1];
}
setTranslationX(translateX);
return SCROLL_TYPE_WORKSPACE;
}
private void initUiData() {
if (mUIDataValid && mScaleAndTranslatePage0 != null) {
return;
}
float overlap = getResources().getDimension(R.dimen.workspace_overview_offset_x);
RecentsView.getPageRect(mLauncher, mTempRect);
mScaleAndTranslatePage0 = OverviewState
.getScaleAndTranslationForPageRect(mLauncher, 0, mTempRect);
Rect scaledDown = new Rect(mTempRect);
Utilities.scaleRectAboutCenter(scaledDown, WORKSPACE_SCALE_ON_SCROLL);
mScaleAndTranslatePage1 = OverviewState
.getScaleAndTranslationForPageRect(mLauncher, overlap, scaledDown);
mUIDataValid = true;
}
}
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