TaskViewHeader.java revision b9026ff592ac781bc12a042cf6451dd927be6dd5
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.systemui.recents.views; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ArgbEvaluator; 23import android.animation.ObjectAnimator; 24import android.animation.ValueAnimator; 25import android.content.Context; 26import android.content.res.ColorStateList; 27import android.graphics.Canvas; 28import android.graphics.Color; 29import android.graphics.drawable.Drawable; 30import android.graphics.drawable.GradientDrawable; 31import android.graphics.drawable.RippleDrawable; 32import android.graphics.Outline; 33import android.graphics.Paint; 34import android.graphics.PorterDuff; 35import android.graphics.PorterDuffColorFilter; 36import android.graphics.PorterDuffXfermode; 37import android.graphics.Rect; 38import android.util.AttributeSet; 39import android.view.View; 40import android.view.ViewOutlineProvider; 41import android.widget.FrameLayout; 42import android.widget.ImageView; 43import android.widget.TextView; 44import com.android.systemui.R; 45import com.android.systemui.recents.Constants; 46import com.android.systemui.recents.RecentsConfiguration; 47import com.android.systemui.recents.misc.SystemServicesProxy; 48import com.android.systemui.recents.misc.Utilities; 49import com.android.systemui.recents.model.RecentsTaskLoader; 50import com.android.systemui.recents.model.Task; 51 52 53/* The task bar view */ 54public class TaskViewHeader extends FrameLayout { 55 56 RecentsConfiguration mConfig; 57 private SystemServicesProxy mSsp; 58 59 // Header views 60 ImageView mMoveTaskButton; 61 ImageView mDismissButton; 62 ImageView mApplicationIcon; 63 TextView mActivityDescription; 64 65 // Header drawables 66 boolean mCurrentPrimaryColorIsDark; 67 int mCurrentPrimaryColor; 68 int mBackgroundColor; 69 Drawable mLightDismissDrawable; 70 Drawable mDarkDismissDrawable; 71 RippleDrawable mBackground; 72 GradientDrawable mBackgroundColorDrawable; 73 AnimatorSet mFocusAnimator; 74 String mDismissContentDescription; 75 76 // Static highlight that we draw at the top of each view 77 static Paint sHighlightPaint; 78 79 // Header dim, which is only used when task view hardware layers are not used 80 Paint mDimLayerPaint = new Paint(); 81 PorterDuffColorFilter mDimColorFilter = new PorterDuffColorFilter(0, PorterDuff.Mode.SRC_ATOP); 82 83 public TaskViewHeader(Context context) { 84 this(context, null); 85 } 86 87 public TaskViewHeader(Context context, AttributeSet attrs) { 88 this(context, attrs, 0); 89 } 90 91 public TaskViewHeader(Context context, AttributeSet attrs, int defStyleAttr) { 92 this(context, attrs, defStyleAttr, 0); 93 } 94 95 public TaskViewHeader(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 96 super(context, attrs, defStyleAttr, defStyleRes); 97 mConfig = RecentsConfiguration.getInstance(); 98 mSsp = RecentsTaskLoader.getInstance().getSystemServicesProxy(); 99 setWillNotDraw(false); 100 setClipToOutline(true); 101 setOutlineProvider(new ViewOutlineProvider() { 102 @Override 103 public void getOutline(View view, Outline outline) { 104 outline.setRect(0, 0, getMeasuredWidth(), getMeasuredHeight()); 105 } 106 }); 107 108 // Load the dismiss resources 109 mLightDismissDrawable = context.getDrawable(R.drawable.recents_dismiss_light); 110 mDarkDismissDrawable = context.getDrawable(R.drawable.recents_dismiss_dark); 111 mDismissContentDescription = 112 context.getString(R.string.accessibility_recents_item_will_be_dismissed); 113 114 // Configure the highlight paint 115 if (sHighlightPaint == null) { 116 sHighlightPaint = new Paint(); 117 sHighlightPaint.setStyle(Paint.Style.STROKE); 118 sHighlightPaint.setStrokeWidth(mConfig.taskViewHighlightPx); 119 sHighlightPaint.setColor(mConfig.taskBarViewHighlightColor); 120 sHighlightPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.ADD)); 121 sHighlightPaint.setAntiAlias(true); 122 } 123 } 124 125 @Override 126 protected void onFinishInflate() { 127 // Initialize the icon and description views 128 mApplicationIcon = (ImageView) findViewById(R.id.application_icon); 129 mActivityDescription = (TextView) findViewById(R.id.activity_description); 130 mDismissButton = (ImageView) findViewById(R.id.dismiss_task); 131 mMoveTaskButton = (ImageView) findViewById(R.id.move_task); 132 133 // Hide the backgrounds if they are ripple drawables 134 if (!Constants.DebugFlags.App.EnableTaskFiltering) { 135 if (mApplicationIcon.getBackground() instanceof RippleDrawable) { 136 mApplicationIcon.setBackground(null); 137 } 138 } 139 140 mBackgroundColorDrawable = (GradientDrawable) getContext().getDrawable(R.drawable 141 .recents_task_view_header_bg_color); 142 // Copy the ripple drawable since we are going to be manipulating it 143 mBackground = (RippleDrawable) 144 getContext().getDrawable(R.drawable.recents_task_view_header_bg); 145 mBackground = (RippleDrawable) mBackground.mutate().getConstantState().newDrawable(); 146 mBackground.setColor(ColorStateList.valueOf(0)); 147 mBackground.setDrawableByLayerId(mBackground.getId(0), mBackgroundColorDrawable); 148 setBackground(mBackground); 149 } 150 151 @Override 152 protected void onDraw(Canvas canvas) { 153 // Draw the highlight at the top edge (but put the bottom edge just out of view) 154 float offset = (float) Math.ceil(mConfig.taskViewHighlightPx / 2f); 155 float radius = mConfig.taskViewRoundedCornerRadiusPx; 156 int count = canvas.save(Canvas.CLIP_SAVE_FLAG); 157 canvas.clipRect(0, 0, getMeasuredWidth(), getMeasuredHeight()); 158 canvas.drawRoundRect(-offset, 0f, (float) getMeasuredWidth() + offset, 159 getMeasuredHeight() + radius, radius, radius, sHighlightPaint); 160 canvas.restoreToCount(count); 161 } 162 163 @Override 164 public boolean hasOverlappingRendering() { 165 return false; 166 } 167 168 /** 169 * Sets the dim alpha, only used when we are not using hardware layers. 170 * (see RecentsConfiguration.useHardwareLayers) 171 */ 172 void setDimAlpha(int alpha) { 173 mDimColorFilter.setColor(Color.argb(alpha, 0, 0, 0)); 174 mDimLayerPaint.setColorFilter(mDimColorFilter); 175 setLayerType(LAYER_TYPE_HARDWARE, mDimLayerPaint); 176 } 177 178 /** Returns the secondary color for a primary color. */ 179 int getSecondaryColor(int primaryColor, boolean useLightOverlayColor) { 180 int overlayColor = useLightOverlayColor ? Color.WHITE : Color.BLACK; 181 return Utilities.getColorWithOverlay(primaryColor, overlayColor, 0.8f); 182 } 183 184 /** Binds the bar view to the task */ 185 public void rebindToTask(Task t) { 186 // If an activity icon is defined, then we use that as the primary icon to show in the bar, 187 // otherwise, we fall back to the application icon 188 if (t.activityIcon != null) { 189 mApplicationIcon.setImageDrawable(t.activityIcon); 190 } else if (t.applicationIcon != null) { 191 mApplicationIcon.setImageDrawable(t.applicationIcon); 192 } 193 mApplicationIcon.setContentDescription(t.activityLabel); 194 if (!mActivityDescription.getText().toString().equals(t.activityLabel)) { 195 mActivityDescription.setText(t.activityLabel); 196 } 197 // Try and apply the system ui tint 198 int existingBgColor = getBackgroundColor(); 199 if (existingBgColor != t.colorPrimary) { 200 mBackgroundColorDrawable.setColor(t.colorPrimary); 201 mBackgroundColor = t.colorPrimary; 202 } 203 mCurrentPrimaryColor = t.colorPrimary; 204 mCurrentPrimaryColorIsDark = t.useLightOnPrimaryColor; 205 mActivityDescription.setTextColor(t.useLightOnPrimaryColor ? 206 mConfig.taskBarViewLightTextColor : mConfig.taskBarViewDarkTextColor); 207 mDismissButton.setImageDrawable(t.useLightOnPrimaryColor ? 208 mLightDismissDrawable : mDarkDismissDrawable); 209 mDismissButton.setContentDescription(String.format(mDismissContentDescription, 210 t.activityLabel)); 211 mMoveTaskButton.setVisibility((mConfig.multiStackEnabled) ? View.VISIBLE : View.INVISIBLE); 212 if (mConfig.multiStackEnabled) { 213 updateResizeTaskBarIcon(t); 214 } 215 } 216 217 /** Updates the resize task bar button. */ 218 void updateResizeTaskBarIcon(Task t) { 219 Rect display = mSsp.getWindowRect(); 220 Rect taskRect = mSsp.getTaskBounds(t.key.stackId); 221 int resId = R.drawable.star; 222 if (display.equals(taskRect)) { 223 resId = R.drawable.vector_drawable_place_fullscreen; 224 } else { 225 boolean top = display.top == taskRect.top; 226 boolean bottom = display.bottom == taskRect.bottom; 227 boolean left = display.left == taskRect.left; 228 boolean right = display.right == taskRect.right; 229 if (top && bottom && left) { 230 resId = R.drawable.vector_drawable_place_left; 231 } else if (top && bottom && right) { 232 resId = R.drawable.vector_drawable_place_right; 233 } else if (top && left && right) { 234 resId = R.drawable.vector_drawable_place_top; 235 } else if (bottom && left && right) { 236 resId = R.drawable.vector_drawable_place_bottom; 237 } else if (top && right) { 238 resId = R.drawable.vector_drawable_place_top_right; 239 } else if (top && left) { 240 resId = R.drawable.vector_drawable_place_top_left; 241 } else if (bottom && right) { 242 resId = R.drawable.vector_drawable_place_bottom_right; 243 } else if (bottom && left) { 244 resId = R.drawable.vector_drawable_place_bottom_left; 245 } 246 } 247 mMoveTaskButton.setImageResource(resId); 248 } 249 250 /** Unbinds the bar view from the task */ 251 void unbindFromTask() { 252 mApplicationIcon.setImageDrawable(null); 253 } 254 255 /** Animates this task bar dismiss button when launching a task. */ 256 void startLaunchTaskDismissAnimation() { 257 if (mDismissButton.getVisibility() == View.VISIBLE) { 258 mDismissButton.animate().cancel(); 259 mDismissButton.animate() 260 .alpha(0f) 261 .setStartDelay(0) 262 .setInterpolator(mConfig.fastOutSlowInInterpolator) 263 .setDuration(mConfig.taskViewExitToAppDuration) 264 .withLayer() 265 .start(); 266 } 267 } 268 269 /** Animates this task bar if the user does not interact with the stack after a certain time. */ 270 void startNoUserInteractionAnimation() { 271 if (mDismissButton.getVisibility() != View.VISIBLE) { 272 mDismissButton.setVisibility(View.VISIBLE); 273 mDismissButton.setAlpha(0f); 274 mDismissButton.animate() 275 .alpha(1f) 276 .setStartDelay(0) 277 .setInterpolator(mConfig.fastOutLinearInInterpolator) 278 .setDuration(mConfig.taskViewEnterFromAppDuration) 279 .withLayer() 280 .start(); 281 } 282 } 283 284 /** Mark this task view that the user does has not interacted with the stack after a certain time. */ 285 void setNoUserInteractionState() { 286 if (mDismissButton.getVisibility() != View.VISIBLE) { 287 mDismissButton.animate().cancel(); 288 mDismissButton.setVisibility(View.VISIBLE); 289 mDismissButton.setAlpha(1f); 290 } 291 } 292 293 /** Resets the state tracking that the user has not interacted with the stack after a certain time. */ 294 void resetNoUserInteractionState() { 295 mDismissButton.setVisibility(View.INVISIBLE); 296 } 297 298 @Override 299 protected int[] onCreateDrawableState(int extraSpace) { 300 301 // Don't forward our state to the drawable - we do it manually in onTaskViewFocusChanged. 302 // This is to prevent layer trashing when the view is pressed. 303 return new int[] {}; 304 } 305 306 /** Notifies the associated TaskView has been focused. */ 307 void onTaskViewFocusChanged(boolean focused, boolean animateFocusedState) { 308 // If we are not animating the visible state, just return 309 if (!animateFocusedState) return; 310 311 boolean isRunning = false; 312 if (mFocusAnimator != null) { 313 isRunning = mFocusAnimator.isRunning(); 314 Utilities.cancelAnimationWithoutCallbacks(mFocusAnimator); 315 } 316 317 if (focused) { 318 int currentColor = mBackgroundColor; 319 int secondaryColor = getSecondaryColor(mCurrentPrimaryColor, mCurrentPrimaryColorIsDark); 320 int[][] states = new int[][] { 321 new int[] {}, 322 new int[] { android.R.attr.state_enabled }, 323 new int[] { android.R.attr.state_pressed } 324 }; 325 int[] newStates = new int[]{ 326 0, 327 android.R.attr.state_enabled, 328 android.R.attr.state_pressed 329 }; 330 int[] colors = new int[] { 331 currentColor, 332 secondaryColor, 333 secondaryColor 334 }; 335 mBackground.setColor(new ColorStateList(states, colors)); 336 mBackground.setState(newStates); 337 // Pulse the background color 338 int lightPrimaryColor = getSecondaryColor(mCurrentPrimaryColor, mCurrentPrimaryColorIsDark); 339 ValueAnimator backgroundColor = ValueAnimator.ofObject(new ArgbEvaluator(), 340 currentColor, lightPrimaryColor); 341 backgroundColor.addListener(new AnimatorListenerAdapter() { 342 @Override 343 public void onAnimationStart(Animator animation) { 344 mBackground.setState(new int[]{}); 345 } 346 }); 347 backgroundColor.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 348 @Override 349 public void onAnimationUpdate(ValueAnimator animation) { 350 int color = (int) animation.getAnimatedValue(); 351 mBackgroundColorDrawable.setColor(color); 352 mBackgroundColor = color; 353 } 354 }); 355 backgroundColor.setRepeatCount(ValueAnimator.INFINITE); 356 backgroundColor.setRepeatMode(ValueAnimator.REVERSE); 357 // Pulse the translation 358 ObjectAnimator translation = ObjectAnimator.ofFloat(this, "translationZ", 15f); 359 translation.setRepeatCount(ValueAnimator.INFINITE); 360 translation.setRepeatMode(ValueAnimator.REVERSE); 361 362 mFocusAnimator = new AnimatorSet(); 363 mFocusAnimator.playTogether(backgroundColor, translation); 364 mFocusAnimator.setStartDelay(150); 365 mFocusAnimator.setDuration(750); 366 mFocusAnimator.start(); 367 } else { 368 if (isRunning) { 369 // Restore the background color 370 int currentColor = mBackgroundColor; 371 ValueAnimator backgroundColor = ValueAnimator.ofObject(new ArgbEvaluator(), 372 currentColor, mCurrentPrimaryColor); 373 backgroundColor.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 374 @Override 375 public void onAnimationUpdate(ValueAnimator animation) { 376 int color = (int) animation.getAnimatedValue(); 377 mBackgroundColorDrawable.setColor(color); 378 mBackgroundColor = color; 379 } 380 }); 381 // Restore the translation 382 ObjectAnimator translation = ObjectAnimator.ofFloat(this, "translationZ", 0f); 383 384 mFocusAnimator = new AnimatorSet(); 385 mFocusAnimator.playTogether(backgroundColor, translation); 386 mFocusAnimator.setDuration(150); 387 mFocusAnimator.start(); 388 } else { 389 mBackground.setState(new int[] {}); 390 setTranslationZ(0f); 391 } 392 } 393 } 394} 395