TaskView.java revision 814086db674d8eb298541b7e601e29c5c68e2074
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.TimeInterpolator; 20import android.animation.ValueAnimator; 21import android.content.Context; 22import android.graphics.Canvas; 23import android.graphics.Outline; 24import android.graphics.Path; 25import android.graphics.Point; 26import android.graphics.Rect; 27import android.graphics.RectF; 28import android.util.AttributeSet; 29import android.view.MotionEvent; 30import android.view.View; 31import android.view.animation.AccelerateInterpolator; 32import android.widget.FrameLayout; 33import com.android.systemui.R; 34import com.android.systemui.recents.BakedBezierInterpolator; 35import com.android.systemui.recents.Constants; 36import com.android.systemui.recents.RecentsConfiguration; 37import com.android.systemui.recents.model.Task; 38 39 40/* A task view */ 41public class TaskView extends FrameLayout implements View.OnClickListener, 42 Task.TaskCallbacks { 43 /** The TaskView callbacks */ 44 interface TaskViewCallbacks { 45 public void onTaskIconClicked(TaskView tv); 46 public void onTaskInfoPanelShown(TaskView tv); 47 public void onTaskInfoPanelHidden(TaskView tv); 48 public void onTaskAppInfoClicked(TaskView tv); 49 50 // public void onTaskViewReboundToTask(TaskView tv, Task t); 51 } 52 53 int mDim; 54 int mMaxDim; 55 TimeInterpolator mDimInterpolator = new AccelerateInterpolator(); 56 57 Task mTask; 58 boolean mTaskDataLoaded; 59 boolean mTaskInfoPaneVisible; 60 Point mLastTouchDown = new Point(); 61 Path mRoundedRectClipPath = new Path(); 62 63 TaskThumbnailView mThumbnailView; 64 TaskBarView mBarView; 65 TaskInfoView mInfoView; 66 TaskViewCallbacks mCb; 67 68 69 public TaskView(Context context) { 70 this(context, null); 71 } 72 73 public TaskView(Context context, AttributeSet attrs) { 74 this(context, attrs, 0); 75 } 76 77 public TaskView(Context context, AttributeSet attrs, int defStyleAttr) { 78 this(context, attrs, defStyleAttr, 0); 79 } 80 81 public TaskView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 82 super(context, attrs, defStyleAttr, defStyleRes); 83 setWillNotDraw(false); 84 } 85 86 @Override 87 protected void onFinishInflate() { 88 RecentsConfiguration config = RecentsConfiguration.getInstance(); 89 mMaxDim = config.taskStackMaxDim; 90 91 // Bind the views 92 mThumbnailView = (TaskThumbnailView) findViewById(R.id.task_view_thumbnail); 93 mBarView = (TaskBarView) findViewById(R.id.task_view_bar); 94 mInfoView = (TaskInfoView) findViewById(R.id.task_view_info_pane); 95 96 if (mTaskDataLoaded) { 97 onTaskDataLoaded(false); 98 } 99 } 100 101 @Override 102 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 103 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 104 105 // Update the rounded rect clip path 106 RecentsConfiguration config = RecentsConfiguration.getInstance(); 107 float radius = config.taskViewRoundedCornerRadiusPx; 108 mRoundedRectClipPath.reset(); 109 mRoundedRectClipPath.addRoundRect(new RectF(0, 0, getMeasuredWidth(), getMeasuredHeight()), 110 radius, radius, Path.Direction.CW); 111 112 // Update the outline 113 Outline o = new Outline(); 114 o.setRoundRect(0, 0, getMeasuredWidth(), getMeasuredHeight(), radius); 115 setOutline(o); 116 } 117 118 @Override 119 public boolean onInterceptTouchEvent(MotionEvent ev) { 120 switch (ev.getAction()) { 121 case MotionEvent.ACTION_DOWN: 122 case MotionEvent.ACTION_MOVE: 123 mLastTouchDown.set((int) ev.getX(), (int) ev.getY()); 124 break; 125 } 126 return super.onInterceptTouchEvent(ev); 127 } 128 129 /** Set callback */ 130 void setCallbacks(TaskViewCallbacks cb) { 131 mCb = cb; 132 } 133 134 /** Gets the task */ 135 Task getTask() { 136 return mTask; 137 } 138 139 /** Synchronizes this view's properties with the task's transform */ 140 void updateViewPropertiesToTaskTransform(TaskViewTransform animateFromTransform, 141 TaskViewTransform toTransform, int duration) { 142 RecentsConfiguration config = RecentsConfiguration.getInstance(); 143 int minZ = config.taskViewTranslationZMinPx; 144 int incZ = config.taskViewTranslationZIncrementPx; 145 146 if (duration > 0) { 147 if (animateFromTransform != null) { 148 setTranslationY(animateFromTransform.translationY); 149 if (Constants.DebugFlags.App.EnableShadows) { 150 setTranslationZ(Math.max(minZ, minZ + (animateFromTransform.t * incZ))); 151 } 152 setScaleX(animateFromTransform.scale); 153 setScaleY(animateFromTransform.scale); 154 setAlpha(animateFromTransform.alpha); 155 } 156 if (Constants.DebugFlags.App.EnableShadows) { 157 animate().translationZ(Math.max(minZ, minZ + (toTransform.t * incZ))); 158 } 159 animate().translationY(toTransform.translationY) 160 .scaleX(toTransform.scale) 161 .scaleY(toTransform.scale) 162 .alpha(toTransform.alpha) 163 .setDuration(duration) 164 .setInterpolator(BakedBezierInterpolator.INSTANCE) 165 .withLayer() 166 .setUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 167 @Override 168 public void onAnimationUpdate(ValueAnimator animation) { 169 updateDimOverlayFromScale(); 170 } 171 }) 172 .start(); 173 } else { 174 setTranslationY(toTransform.translationY); 175 if (Constants.DebugFlags.App.EnableShadows) { 176 setTranslationZ(Math.max(minZ, minZ + (toTransform.t * incZ))); 177 } 178 setScaleX(toTransform.scale); 179 setScaleY(toTransform.scale); 180 setAlpha(toTransform.alpha); 181 } 182 updateDimOverlayFromScale(); 183 invalidate(); 184 } 185 186 /** Resets this view's properties */ 187 void resetViewProperties() { 188 setTranslationX(0f); 189 setTranslationY(0f); 190 if (Constants.DebugFlags.App.EnableShadows) { 191 setTranslationZ(0f); 192 } 193 setScaleX(1f); 194 setScaleY(1f); 195 setAlpha(1f); 196 invalidate(); 197 } 198 199 /** 200 * When we are un/filtering, this method will set up the transform that we are animating to, 201 * in order to hide the task. 202 */ 203 void prepareTaskTransformForFilterTaskHidden(TaskViewTransform toTransform) { 204 // Fade the view out and slide it away 205 toTransform.alpha = 0f; 206 toTransform.translationY += 200; 207 } 208 209 /** 210 * When we are un/filtering, this method will setup the transform that we are animating from, 211 * in order to show the task. 212 */ 213 void prepareTaskTransformForFilterTaskVisible(TaskViewTransform fromTransform) { 214 // Fade the view in 215 fromTransform.alpha = 0f; 216 } 217 218 /** Animates this task view as it enters recents */ 219 public void animateOnEnterRecents() { 220 RecentsConfiguration config = RecentsConfiguration.getInstance(); 221 mBarView.setAlpha(0f); 222 mBarView.animate() 223 .alpha(1f) 224 .setStartDelay(235) 225 .setInterpolator(BakedBezierInterpolator.INSTANCE) 226 .setDuration(config.taskBarEnterAnimDuration) 227 .withLayer() 228 .start(); 229 } 230 231 /** Animates this task view as it exits recents */ 232 public void animateOnLeavingRecents(final Runnable r) { 233 RecentsConfiguration config = RecentsConfiguration.getInstance(); 234 mBarView.animate() 235 .alpha(0f) 236 .setStartDelay(0) 237 .setInterpolator(BakedBezierInterpolator.INSTANCE) 238 .setDuration(config.taskBarExitAnimDuration) 239 .withLayer() 240 .withEndAction(new Runnable() { 241 @Override 242 public void run() { 243 post(r); 244 } 245 }) 246 .start(); 247 } 248 249 /** Returns the rect we want to clip (it may not be the full rect) */ 250 Rect getClippingRect(Rect outRect) { 251 getHitRect(outRect); 252 // XXX: We should get the hit rect of the thumbnail view and intersect, but this is faster 253 outRect.right = outRect.left + mThumbnailView.getRight(); 254 outRect.bottom = outRect.top + mThumbnailView.getBottom(); 255 return outRect; 256 } 257 258 /** Returns whether this task has an info pane visible */ 259 boolean isInfoPaneVisible() { 260 return mTaskInfoPaneVisible; 261 } 262 263 /** Shows the info pane if it is not visible. */ 264 void showInfoPane(Rect taskVisibleRect) { 265 if (mTaskInfoPaneVisible) return; 266 267 // Remove the bar view from the visible rect and update the info pane contents 268 taskVisibleRect.top += mBarView.getMeasuredHeight(); 269 mInfoView.updateContents(taskVisibleRect); 270 271 // Show the info pane and animate it into view 272 mInfoView.setVisibility(View.VISIBLE); 273 mInfoView.animateCircularClip(mLastTouchDown, 0f, 1f, null, true); 274 mInfoView.setOnClickListener(this); 275 mTaskInfoPaneVisible = true; 276 277 // Notify any callbacks 278 if (mCb != null) { 279 mCb.onTaskInfoPanelShown(this); 280 } 281 } 282 283 /** Hides the info pane if it is visible. */ 284 void hideInfoPane() { 285 if (!mTaskInfoPaneVisible) return; 286 RecentsConfiguration config = RecentsConfiguration.getInstance(); 287 288 // Cancel any circular clip animation 289 mInfoView.cancelCircularClipAnimation(); 290 291 // Animate the info pane out 292 mInfoView.animate() 293 .alpha(0f) 294 .setDuration(config.taskViewInfoPaneAnimDuration) 295 .setInterpolator(BakedBezierInterpolator.INSTANCE) 296 .withLayer() 297 .withEndAction(new Runnable() { 298 @Override 299 public void run() { 300 mInfoView.setVisibility(View.INVISIBLE); 301 mInfoView.setOnClickListener(null); 302 303 mInfoView.setAlpha(1f); 304 } 305 }) 306 .start(); 307 mTaskInfoPaneVisible = false; 308 309 // Notify any callbacks 310 if (mCb != null) { 311 mCb.onTaskInfoPanelHidden(this); 312 } 313 } 314 315 /** Enable the hw layers on this task view */ 316 void enableHwLayers() { 317 mThumbnailView.setLayerType(View.LAYER_TYPE_HARDWARE, null); 318 } 319 320 /** Disable the hw layers on this task view */ 321 void disableHwLayers() { 322 mThumbnailView.setLayerType(View.LAYER_TYPE_NONE, null); 323 } 324 325 /** Update the dim as a function of the scale of this view. */ 326 void updateDimOverlayFromScale() { 327 float minScale = Constants.Values.TaskStackView.StackPeekMinScale; 328 float scaleRange = 1f - minScale; 329 float dim = (1f - getScaleX()) / scaleRange; 330 dim = mDimInterpolator.getInterpolation(Math.min(dim, 1f)); 331 mDim = Math.max(0, Math.min(mMaxDim, (int) (dim * 255))); 332 invalidate(); 333 } 334 335 @Override 336 public void draw(Canvas canvas) { 337 // Apply the rounded rect clip path on the whole view 338 canvas.clipPath(mRoundedRectClipPath); 339 340 super.draw(canvas); 341 342 // Apply the dim if necessary 343 if (mDim > 0) { 344 canvas.drawColor(mDim << 24); 345 } 346 } 347 348 /**** TaskCallbacks Implementation ****/ 349 350 /** Binds this task view to the task */ 351 public void onTaskBound(Task t) { 352 mTask = t; 353 mTask.setCallbacks(this); 354 } 355 356 @Override 357 public void onTaskDataLoaded(boolean reloadingTaskData) { 358 if (mThumbnailView != null && mBarView != null && mInfoView != null) { 359 // Bind each of the views to the new task data 360 mThumbnailView.rebindToTask(mTask, reloadingTaskData); 361 mBarView.rebindToTask(mTask, reloadingTaskData); 362 mInfoView.rebindToTask(mTask, reloadingTaskData); 363 // Rebind any listeners 364 mBarView.mApplicationIcon.setOnClickListener(this); 365 mInfoView.mAppInfoButton.setOnClickListener(this); 366 } 367 mTaskDataLoaded = true; 368 } 369 370 @Override 371 public void onTaskDataUnloaded() { 372 if (mThumbnailView != null && mBarView != null && mInfoView != null) { 373 // Unbind each of the views from the task data and remove the task callback 374 mTask.setCallbacks(null); 375 mThumbnailView.unbindFromTask(); 376 mBarView.unbindFromTask(); 377 // Unbind any listeners 378 mBarView.mApplicationIcon.setOnClickListener(null); 379 mInfoView.mAppInfoButton.setOnClickListener(null); 380 } 381 mTaskDataLoaded = false; 382 } 383 384 @Override 385 public void onClick(View v) { 386 if (v == mInfoView) { 387 hideInfoPane(); 388 } else if (v == mBarView.mApplicationIcon) { 389 mCb.onTaskIconClicked(this); 390 } else if (v == mInfoView.mAppInfoButton) { 391 mCb.onTaskAppInfoClicked(this); 392 } 393 } 394}