src/com/android/launcher3/PendingAppWidgetHostView.java - platform/packages/apps/Launcher3 - Git at Google

 /*
  * Copyright (C) 2014 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;

 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources.Theme;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.PorterDuff;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
 import android.text.Layout;
 import android.text.StaticLayout;
 import android.text.TextPaint;
 import android.util.TypedValue;
 import android.view.ContextThemeWrapper;
 import android.view.View;
 import android.view.View.OnClickListener;

 public class PendingAppWidgetHostView extends LauncherAppWidgetHostView implements OnClickListener {
     private static final float SETUP_ICON_SIZE_FACTOR = 2f / 5;
     private static final float MIN_SATUNATION = 0.7f;

     private static Theme sPreloaderTheme;

     private final Rect mRect = new Rect();
     private View mDefaultView;
     private OnClickListener mClickListener;
     private final LauncherAppWidgetInfo mInfo;
     private final int mStartState;
     private final Intent mIconLookupIntent;
     private final boolean mDisabledForSafeMode;
     private Launcher mLauncher;

     private Bitmap mIcon;

     private Drawable mCenterDrawable;
     private Drawable mSettingIconDrawable;

     private boolean mDrawableSizeChanged;

     private final TextPaint mPaint;
     private Layout mSetupTextLayout;

     @TargetApi(Build.VERSION_CODES.LOLLIPOP)
     public PendingAppWidgetHostView(Context context, LauncherAppWidgetInfo info,
             boolean disabledForSafeMode) {
         super(new ContextThemeWrapper(context, R.style.WidgetContainerTheme));

         mLauncher = Launcher.getLauncher(context);
         mInfo = info;
         mStartState = info.restoreStatus;
         mIconLookupIntent = new Intent().setComponent(info.providerName);
         mDisabledForSafeMode = disabledForSafeMode;

         mPaint = new TextPaint();
         mPaint.setColor(0xFFFFFFFF);
         mPaint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX,
                 mLauncher.getDeviceProfile().iconTextSizePx, getResources().getDisplayMetrics()));
         setBackgroundResource(R.drawable.quantum_panel_dark);
         setWillNotDraw(false);

         if (Utilities.ATLEAST_LOLLIPOP) {
             setElevation(getResources().getDimension(R.dimen.pending_widget_elevation));
         }
     }

     @Override
     public void updateAppWidgetSize(Bundle newOptions, int minWidth, int minHeight, int maxWidth,
             int maxHeight) {
         // No-op
     }

     @Override
     protected View getDefaultView() {
         if (mDefaultView == null) {
             mDefaultView = mInflater.inflate(R.layout.appwidget_not_ready, this, false);
             mDefaultView.setOnClickListener(this);
             applyState();
         }
         return mDefaultView;
     }

     @Override
     public void setOnClickListener(OnClickListener l) {
         mClickListener = l;
     }

     @Override
     public boolean isReinflateRequired() {
         // Re inflate is required any time the widget restore status changes
         return mStartState != mInfo.restoreStatus;
     }

     @Override
     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         super.onSizeChanged(w, h, oldw, oldh);
         mDrawableSizeChanged = true;
     }

     public void updateIcon(IconCache cache) {
         Bitmap icon = cache.getIcon(mIconLookupIntent, mInfo.user);
         if (mIcon == icon) {
             return;
         }
         mIcon = icon;
         if (mCenterDrawable != null) {
             mCenterDrawable.setCallback(null);
             mCenterDrawable = null;
         }
         if (mIcon != null) {
             // The view displays three modes,
             //   1) App icon in the center
             //   2) Preload icon in the center
             //   3) Setup icon in the center and app icon in the top right corner.
             if (mDisabledForSafeMode) {
                 FastBitmapDrawable disabledIcon = mLauncher.createIconDrawable(mIcon);
                 disabledIcon.setState(FastBitmapDrawable.State.DISABLED);
                 mCenterDrawable = disabledIcon;
                 mSettingIconDrawable = null;
             } else if (isReadyForClickSetup()) {
                 mCenterDrawable = new FastBitmapDrawable(mIcon);
                 mSettingIconDrawable = getResources().getDrawable(R.drawable.ic_setting).mutate();

                 updateSettingColor();
             } else {
                 if (sPreloaderTheme == null) {
                     sPreloaderTheme = getResources().newTheme();
                     sPreloaderTheme.applyStyle(R.style.PreloadIcon, true);
                 }

                 FastBitmapDrawable drawable = mLauncher.createIconDrawable(mIcon);
                 mCenterDrawable = new PreloadIconDrawable(drawable, sPreloaderTheme);
                 mCenterDrawable.setCallback(this);
                 mSettingIconDrawable = null;
                 applyState();
             }
             mDrawableSizeChanged = true;
         }
     }

     private void updateSettingColor() {
         int color = Utilities.findDominantColorByHue(mIcon, 20);
         // Make the dominant color bright.
         float[] hsv = new float[3];
         Color.colorToHSV(color, hsv);
         hsv[1] = Math.min(hsv[1], MIN_SATUNATION);
         hsv[2] = 1;
         color = Color.HSVToColor(hsv);

         mSettingIconDrawable.setColorFilter(color,  PorterDuff.Mode.SRC_IN);
     }

     @Override
     protected boolean verifyDrawable(Drawable who) {
         return (who == mCenterDrawable) || super.verifyDrawable(who);
     }

     public void applyState() {
         if (mCenterDrawable != null) {
             mCenterDrawable.setLevel(Math.max(mInfo.installProgress, 0));
         }
     }

     @Override
     public void onClick(View v) {
         // AppWidgetHostView blocks all click events on the root view. Instead handle click events
         // on the content and pass it along.
         if (mClickListener != null) {
             mClickListener.onClick(this);
         }
     }

     /**
      * A pending widget is ready for setup after the provider is installed and
      *   1) Widget id is not valid: the widget id is not yet bound to the provider, probably
      *                              because the launcher doesn't have appropriate permissions.
      *                              Note that we would still have an allocated id as that does not
      *                              require any permissions and can be done during view inflation.
      *   2) UI is not ready: the id is valid and the bound. But the widget has a configure activity
      *                       which needs to be called once.
      */
     public boolean isReadyForClickSetup() {
         return !mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)
                 && (mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_UI_NOT_READY)
                 || mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID));
     }

     private void updateDrawableBounds() {
         DeviceProfile grid = mLauncher.getDeviceProfile();
         int paddingTop = getPaddingTop();
         int paddingBottom = getPaddingBottom();
         int paddingLeft = getPaddingLeft();
         int paddingRight = getPaddingRight();

         int minPadding = getResources()
                 .getDimensionPixelSize(R.dimen.pending_widget_min_padding);

         int availableWidth = getWidth() - paddingLeft - paddingRight - 2 * minPadding;
         int availableHeight = getHeight() - paddingTop - paddingBottom - 2 * minPadding;

         if (mSettingIconDrawable == null) {
             int outset = (mCenterDrawable instanceof PreloadIconDrawable) ?
                     ((PreloadIconDrawable) mCenterDrawable).getOutset() : 0;
             int maxSize = grid.iconSizePx + 2 * outset;
             int size = Math.min(maxSize, Math.min(availableWidth, availableHeight));

             mRect.set(0, 0, size, size);
             mRect.inset(outset, outset);
             mRect.offsetTo((getWidth() - mRect.width()) / 2, (getHeight() - mRect.height()) / 2);
             mCenterDrawable.setBounds(mRect);
         } else  {
             float iconSize = Math.max(0, Math.min(availableWidth, availableHeight));

             // Use twice the setting size factor, as the setting is drawn at a corner and the
             // icon is drawn in the center.
             float settingIconScaleFactor = 1 + SETUP_ICON_SIZE_FACTOR * 2;
             int maxSize = Math.max(availableWidth, availableHeight);
             if (iconSize * settingIconScaleFactor > maxSize) {
                 // There is an overlap
                 iconSize = maxSize / settingIconScaleFactor;
             }

             int actualIconSize = (int) Math.min(iconSize, grid.iconSizePx);

             // Icon top when we do not draw the text
             int iconTop = (getHeight() - actualIconSize) / 2;
             mSetupTextLayout = null;

             if (availableWidth > 0) {
                 // Recreate the setup text.
                 mSetupTextLayout = new StaticLayout(
                         getResources().getText(R.string.gadget_setup_text), mPaint, availableWidth,
                         Layout.Alignment.ALIGN_CENTER, 1, 0, true);
                 int textHeight = mSetupTextLayout.getHeight();

                 // Extra icon size due to the setting icon
                 float minHeightWithText = textHeight + actualIconSize * settingIconScaleFactor
                         + grid.iconDrawablePaddingPx;

                 if (minHeightWithText < availableHeight) {
                     // We can draw the text as well
                     iconTop = (getHeight() - textHeight -
                             grid.iconDrawablePaddingPx - actualIconSize) / 2;

                 } else {
                     // We can't draw the text. Let the iconTop be same as before.
                     mSetupTextLayout = null;
                 }
             }

             mRect.set(0, 0, actualIconSize, actualIconSize);
             mRect.offset((getWidth() - actualIconSize) / 2, iconTop);
             mCenterDrawable.setBounds(mRect);

             mRect.left = paddingLeft + minPadding;
             mRect.right = mRect.left + (int) (SETUP_ICON_SIZE_FACTOR * actualIconSize);
             mRect.top = paddingTop + minPadding;
             mRect.bottom = mRect.top + (int) (SETUP_ICON_SIZE_FACTOR * actualIconSize);
             mSettingIconDrawable.setBounds(mRect);

             if (mSetupTextLayout != null) {
                 // Set up position for dragging the text
                 mRect.left = paddingLeft + minPadding;
                 mRect.top = mCenterDrawable.getBounds().bottom + grid.iconDrawablePaddingPx;
             }
         }
     }

     @Override
     protected void onDraw(Canvas canvas) {
         if (mCenterDrawable == null) {
             // Nothing to draw
             return;
         }

         if (mDrawableSizeChanged) {
             updateDrawableBounds();
             mDrawableSizeChanged = false;
         }

         mCenterDrawable.draw(canvas);
         if (mSettingIconDrawable != null) {
             mSettingIconDrawable.draw(canvas);
         }
         if (mSetupTextLayout != null) {
             canvas.save();
             canvas.translate(mRect.left, mRect.top);
             mSetupTextLayout.draw(canvas);
             canvas.restore();
         }

     }
 }
	/*
	* Copyright (C) 2014 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;

	import android.annotation.TargetApi;
	import android.content.Context;
	import android.content.Intent;
	import android.content.res.Resources.Theme;
	import android.graphics.Bitmap;
	import android.graphics.Canvas;
	import android.graphics.Color;
	import android.graphics.PorterDuff;
	import android.graphics.Rect;
	import android.graphics.drawable.Drawable;
	import android.os.Build;
	import android.os.Bundle;
	import android.text.Layout;
	import android.text.StaticLayout;
	import android.text.TextPaint;
	import android.util.TypedValue;
	import android.view.ContextThemeWrapper;
	import android.view.View;
	import android.view.View.OnClickListener;

	public class PendingAppWidgetHostView extends LauncherAppWidgetHostView implements OnClickListener {
	private static final float SETUP_ICON_SIZE_FACTOR = 2f / 5;
	private static final float MIN_SATUNATION = 0.7f;

	private static Theme sPreloaderTheme;

	private final Rect mRect = new Rect();
	private View mDefaultView;
	private OnClickListener mClickListener;
	private final LauncherAppWidgetInfo mInfo;
	private final int mStartState;
	private final Intent mIconLookupIntent;
	private final boolean mDisabledForSafeMode;
	private Launcher mLauncher;

	private Bitmap mIcon;

	private Drawable mCenterDrawable;
	private Drawable mSettingIconDrawable;

	private boolean mDrawableSizeChanged;

	private final TextPaint mPaint;
	private Layout mSetupTextLayout;

	@TargetApi(Build.VERSION_CODES.LOLLIPOP)
	public PendingAppWidgetHostView(Context context, LauncherAppWidgetInfo info,
	boolean disabledForSafeMode) {
	super(new ContextThemeWrapper(context, R.style.WidgetContainerTheme));

	mLauncher = Launcher.getLauncher(context);
	mInfo = info;
	mStartState = info.restoreStatus;
	mIconLookupIntent = new Intent().setComponent(info.providerName);
	mDisabledForSafeMode = disabledForSafeMode;

	mPaint = new TextPaint();
	mPaint.setColor(0xFFFFFFFF);
	mPaint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX,
	mLauncher.getDeviceProfile().iconTextSizePx, getResources().getDisplayMetrics()));
	setBackgroundResource(R.drawable.quantum_panel_dark);
	setWillNotDraw(false);

	if (Utilities.ATLEAST_LOLLIPOP) {
	setElevation(getResources().getDimension(R.dimen.pending_widget_elevation));
	}
	}

	@Override
	public void updateAppWidgetSize(Bundle newOptions, int minWidth, int minHeight, int maxWidth,
	int maxHeight) {
	// No-op
	}

	@Override
	protected View getDefaultView() {
	if (mDefaultView == null) {
	mDefaultView = mInflater.inflate(R.layout.appwidget_not_ready, this, false);
	mDefaultView.setOnClickListener(this);
	applyState();
	}
	return mDefaultView;
	}

	@Override
	public void setOnClickListener(OnClickListener l) {
	mClickListener = l;
	}

	@Override
	public boolean isReinflateRequired() {
	// Re inflate is required any time the widget restore status changes
	return mStartState != mInfo.restoreStatus;
	}

	@Override
	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
	super.onSizeChanged(w, h, oldw, oldh);
	mDrawableSizeChanged = true;
	}

	public void updateIcon(IconCache cache) {
	Bitmap icon = cache.getIcon(mIconLookupIntent, mInfo.user);
	if (mIcon == icon) {
	return;
	}
	mIcon = icon;
	if (mCenterDrawable != null) {
	mCenterDrawable.setCallback(null);
	mCenterDrawable = null;
	}
	if (mIcon != null) {
	// The view displays three modes,
	// 1) App icon in the center
	// 2) Preload icon in the center
	// 3) Setup icon in the center and app icon in the top right corner.
	if (mDisabledForSafeMode) {
	FastBitmapDrawable disabledIcon = mLauncher.createIconDrawable(mIcon);
	disabledIcon.setState(FastBitmapDrawable.State.DISABLED);
	mCenterDrawable = disabledIcon;
	mSettingIconDrawable = null;
	} else if (isReadyForClickSetup()) {
	mCenterDrawable = new FastBitmapDrawable(mIcon);
	mSettingIconDrawable = getResources().getDrawable(R.drawable.ic_setting).mutate();

	updateSettingColor();
	} else {
	if (sPreloaderTheme == null) {
	sPreloaderTheme = getResources().newTheme();
	sPreloaderTheme.applyStyle(R.style.PreloadIcon, true);
	}

	FastBitmapDrawable drawable = mLauncher.createIconDrawable(mIcon);
	mCenterDrawable = new PreloadIconDrawable(drawable, sPreloaderTheme);
	mCenterDrawable.setCallback(this);
	mSettingIconDrawable = null;
	applyState();
	}
	mDrawableSizeChanged = true;
	}
	}

	private void updateSettingColor() {
	int color = Utilities.findDominantColorByHue(mIcon, 20);
	// Make the dominant color bright.
	float[] hsv = new float[3];
	Color.colorToHSV(color, hsv);
	hsv[1] = Math.min(hsv[1], MIN_SATUNATION);
	hsv[2] = 1;
	color = Color.HSVToColor(hsv);

	mSettingIconDrawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
	}

	@Override
	protected boolean verifyDrawable(Drawable who) {
	return (who == mCenterDrawable) \|\| super.verifyDrawable(who);
	}

	public void applyState() {
	if (mCenterDrawable != null) {
	mCenterDrawable.setLevel(Math.max(mInfo.installProgress, 0));
	}
	}

	@Override
	public void onClick(View v) {
	// AppWidgetHostView blocks all click events on the root view. Instead handle click events
	// on the content and pass it along.
	if (mClickListener != null) {
	mClickListener.onClick(this);
	}
	}

	/**
	* A pending widget is ready for setup after the provider is installed and
	* 1) Widget id is not valid: the widget id is not yet bound to the provider, probably
	* because the launcher doesn't have appropriate permissions.
	* Note that we would still have an allocated id as that does not
	* require any permissions and can be done during view inflation.
	* 2) UI is not ready: the id is valid and the bound. But the widget has a configure activity
	* which needs to be called once.
	*/
	public boolean isReadyForClickSetup() {
	return !mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)
	&& (mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_UI_NOT_READY)
	\|\| mInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID));
	}

	private void updateDrawableBounds() {
	DeviceProfile grid = mLauncher.getDeviceProfile();
	int paddingTop = getPaddingTop();
	int paddingBottom = getPaddingBottom();
	int paddingLeft = getPaddingLeft();
	int paddingRight = getPaddingRight();

	int minPadding = getResources()
	.getDimensionPixelSize(R.dimen.pending_widget_min_padding);

	int availableWidth = getWidth() - paddingLeft - paddingRight - 2 * minPadding;
	int availableHeight = getHeight() - paddingTop - paddingBottom - 2 * minPadding;

	if (mSettingIconDrawable == null) {
	int outset = (mCenterDrawable instanceof PreloadIconDrawable) ?
	((PreloadIconDrawable) mCenterDrawable).getOutset() : 0;
	int maxSize = grid.iconSizePx + 2 * outset;
	int size = Math.min(maxSize, Math.min(availableWidth, availableHeight));

	mRect.set(0, 0, size, size);
	mRect.inset(outset, outset);
	mRect.offsetTo((getWidth() - mRect.width()) / 2, (getHeight() - mRect.height()) / 2);
	mCenterDrawable.setBounds(mRect);
	} else {
	float iconSize = Math.max(0, Math.min(availableWidth, availableHeight));

	// Use twice the setting size factor, as the setting is drawn at a corner and the
	// icon is drawn in the center.
	float settingIconScaleFactor = 1 + SETUP_ICON_SIZE_FACTOR * 2;
	int maxSize = Math.max(availableWidth, availableHeight);
	if (iconSize * settingIconScaleFactor > maxSize) {
	// There is an overlap
	iconSize = maxSize / settingIconScaleFactor;
	}

	int actualIconSize = (int) Math.min(iconSize, grid.iconSizePx);

	// Icon top when we do not draw the text
	int iconTop = (getHeight() - actualIconSize) / 2;
	mSetupTextLayout = null;

	if (availableWidth > 0) {
	// Recreate the setup text.
	mSetupTextLayout = new StaticLayout(
	getResources().getText(R.string.gadget_setup_text), mPaint, availableWidth,
	Layout.Alignment.ALIGN_CENTER, 1, 0, true);
	int textHeight = mSetupTextLayout.getHeight();

	// Extra icon size due to the setting icon
	float minHeightWithText = textHeight + actualIconSize * settingIconScaleFactor
	+ grid.iconDrawablePaddingPx;

	if (minHeightWithText < availableHeight) {
	// We can draw the text as well
	iconTop = (getHeight() - textHeight -
	grid.iconDrawablePaddingPx - actualIconSize) / 2;

	} else {
	// We can't draw the text. Let the iconTop be same as before.
	mSetupTextLayout = null;
	}
	}

	mRect.set(0, 0, actualIconSize, actualIconSize);
	mRect.offset((getWidth() - actualIconSize) / 2, iconTop);
	mCenterDrawable.setBounds(mRect);

	mRect.left = paddingLeft + minPadding;
	mRect.right = mRect.left + (int) (SETUP_ICON_SIZE_FACTOR * actualIconSize);
	mRect.top = paddingTop + minPadding;
	mRect.bottom = mRect.top + (int) (SETUP_ICON_SIZE_FACTOR * actualIconSize);
	mSettingIconDrawable.setBounds(mRect);

	if (mSetupTextLayout != null) {
	// Set up position for dragging the text
	mRect.left = paddingLeft + minPadding;
	mRect.top = mCenterDrawable.getBounds().bottom + grid.iconDrawablePaddingPx;
	}
	}
	}

	@Override
	protected void onDraw(Canvas canvas) {
	if (mCenterDrawable == null) {
	// Nothing to draw
	return;
	}

	if (mDrawableSizeChanged) {
	updateDrawableBounds();
	mDrawableSizeChanged = false;
	}

	mCenterDrawable.draw(canvas);
	if (mSettingIconDrawable != null) {
	mSettingIconDrawable.draw(canvas);
	}
	if (mSetupTextLayout != null) {
	canvas.save();
	canvas.translate(mRect.left, mRect.top);
	mSetupTextLayout.draw(canvas);
	canvas.restore();
	}

	}
	}