diff options
Diffstat (limited to 'src/com/android/launcher3/SearchDropTargetBar.java')
| -rw-r--r-- | src/com/android/launcher3/SearchDropTargetBar.java | 216 |
1 files changed, 116 insertions, 100 deletions
diff --git a/src/com/android/launcher3/SearchDropTargetBar.java b/src/com/android/launcher3/SearchDropTargetBar.java index 4cdf1cac9..772a334b9 100644 --- a/src/com/android/launcher3/SearchDropTargetBar.java +++ b/src/com/android/launcher3/SearchDropTargetBar.java @@ -18,32 +18,57 @@ package com.android.launcher3; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; -import android.animation.ObjectAnimator; -import android.animation.ValueAnimator; import android.content.Context; import android.graphics.Rect; import android.util.AttributeSet; import android.view.View; +import android.view.accessibility.AccessibilityManager; import android.view.animation.AccelerateInterpolator; import android.widget.FrameLayout; +import com.android.launcher3.util.Thunk; + /* * Ths bar will manage the transition between the QSB search bar and the delete drop * targets so that each of the individual IconDropTargets don't have to. */ public class SearchDropTargetBar extends FrameLayout implements DragController.DragListener { - private static final int TRANSITION_DURATION = 200; + /** The different states that the search bar space can be in. */ + public enum State { + INVISIBLE (0f, 0f), + SEARCH_BAR (1f, 0f), + DROP_TARGET (0f, 1f); + + private final float mSearchBarAlpha; + private final float mDropTargetBarAlpha; + + State(float sbAlpha, float dtbAlpha) { + mSearchBarAlpha = sbAlpha; + mDropTargetBarAlpha = dtbAlpha; + } + + float getSearchBarAlpha() { + return mSearchBarAlpha; + } + + float getDropTargetBarAlpha() { + return mDropTargetBarAlpha; + } + } - private ObjectAnimator mShowDropTargetBarAnim; - private ValueAnimator mHideSearchBarAnim; + private static int DEFAULT_DRAG_FADE_DURATION = 175; + + private LauncherViewPropertyAnimator mDropTargetBarAnimator; + private LauncherViewPropertyAnimator mQSBSearchBarAnimator; private static final AccelerateInterpolator sAccelerateInterpolator = new AccelerateInterpolator(); - private boolean mIsSearchBarHidden; - private View mQSBSearchBar; - private View mDropTargetBar; + private State mState = State.SEARCH_BAR; + @Thunk View mQSB; + @Thunk View mDropTargetBar; private boolean mDeferOnDragEnd = false; + @Thunk boolean mAccessibilityEnabled = false; // Drop targets private ButtonDropTarget mInfoDropTarget; @@ -75,39 +100,6 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D mUninstallDropTarget.setLauncher(launcher); } - public void setQsbSearchBar(View qsb) { - mQSBSearchBar = qsb; - if (mQSBSearchBar != null) { - mHideSearchBarAnim = LauncherAnimUtils.ofFloat(mQSBSearchBar, "alpha", 1f, 0f); - setupAnimation(mHideSearchBarAnim, mQSBSearchBar); - } else { - // Create a no-op animation of the search bar is null - mHideSearchBarAnim = ValueAnimator.ofFloat(0, 0); - mHideSearchBarAnim.setDuration(TRANSITION_DURATION); - } - } - - private void prepareStartAnimation(View v) { - // Enable the hw layers before the animation starts (will be disabled in the onAnimationEnd - // callback below) - if (v != null) { - v.setLayerType(View.LAYER_TYPE_HARDWARE, null); - } - } - - private void setupAnimation(ValueAnimator anim, final View v) { - anim.setInterpolator(sAccelerateInterpolator); - anim.setDuration(TRANSITION_DURATION); - anim.addListener(new AnimatorListenerAdapter() { - @Override - public void onAnimationEnd(Animator animation) { - if (v != null) { - v.setLayerType(View.LAYER_TYPE_NONE, null); - } - } - }); - } - @Override protected void onFinishInflate() { super.onFinishInflate(); @@ -124,72 +116,89 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D // Create the various fade animations mDropTargetBar.setAlpha(0f); - mShowDropTargetBarAnim = LauncherAnimUtils.ofFloat(mDropTargetBar, "alpha", 0f, 1f); - setupAnimation(mShowDropTargetBarAnim, mDropTargetBar); - } + mDropTargetBarAnimator = new LauncherViewPropertyAnimator(mDropTargetBar); + mDropTargetBarAnimator.setInterpolator(sAccelerateInterpolator); + mDropTargetBarAnimator.addListener(new AnimatorListenerAdapter() { + @Override + public void onAnimationStart(Animator animation) { + // Ensure that the view is visible for the animation + mDropTargetBar.setVisibility(View.VISIBLE); + } - /** - * Finishes all the animations on the search and drop target bars. - */ - public void finishAnimations() { - prepareStartAnimation(mDropTargetBar); - mShowDropTargetBarAnim.reverse(); - prepareStartAnimation(mQSBSearchBar); - mHideSearchBarAnim.reverse(); + @Override + public void onAnimationEnd(Animator animation) { + if (mDropTargetBar != null) { + AlphaUpdateListener.updateVisibility(mDropTargetBar, mAccessibilityEnabled); + } + } + }); } - /** - * Shows the search bar. - */ - public void showSearchBar(boolean animated) { - if (!mIsSearchBarHidden) return; - if (animated) { - prepareStartAnimation(mQSBSearchBar); - mHideSearchBarAnim.reverse(); + public void setQsbSearchBar(View qsb) { + mQSB = qsb; + if (mQSB != null) { + // Update the search ber animation + mQSBSearchBarAnimator = new LauncherViewPropertyAnimator(mQSB); + mQSBSearchBarAnimator.setInterpolator(sAccelerateInterpolator); + mQSBSearchBarAnimator.addListener(new AnimatorListenerAdapter() { + @Override + public void onAnimationStart(Animator animation) { + // Ensure that the view is visible for the animation + if (mQSB != null) { + mQSB.setVisibility(View.VISIBLE); + } + } + + @Override + public void onAnimationEnd(Animator animation) { + if (mQSB != null) { + AlphaUpdateListener.updateVisibility(mQSB, mAccessibilityEnabled); + } + } + }); } else { - mHideSearchBarAnim.cancel(); - if (mQSBSearchBar != null) { - mQSBSearchBar.setAlpha(1f); - } + mQSBSearchBarAnimator = null; } - mIsSearchBarHidden = false; } /** - * Hides the search bar. We only use this for clings. + * Animates the current search bar state to a new state. If the {@param duration} is 0, then + * the state is applied immediately. */ - public void hideSearchBar(boolean animated) { - if (mIsSearchBarHidden) return; - if (animated) { - prepareStartAnimation(mQSBSearchBar); - mHideSearchBarAnim.start(); - } else { - mHideSearchBarAnim.cancel(); - if (mQSBSearchBar != null) { - mQSBSearchBar.setAlpha(0f); - } + public void animateToState(State newState, int duration) { + if (mState != newState) { + mState = newState; + + // Update the accessibility state + AccessibilityManager am = (AccessibilityManager) + getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); + mAccessibilityEnabled = am.isEnabled(); + + animateViewAlpha(mQSBSearchBarAnimator, mQSB, newState.getSearchBarAlpha(), + duration); + animateViewAlpha(mDropTargetBarAnimator, mDropTargetBar, newState.getDropTargetBarAlpha(), + duration); } - mIsSearchBarHidden = true; } /** - * Shows the drop target bar. + * Convenience method to animate the alpha of a view using hardware layers. */ - public void showDeleteTarget() { - // Animate out the QSB search bar, and animate in the drop target bar - prepareStartAnimation(mDropTargetBar); - mShowDropTargetBarAnim.start(); - hideSearchBar(true); - } + private void animateViewAlpha(LauncherViewPropertyAnimator animator, View v, float alpha, + int duration) { + if (v == null) { + return; + } - /** - * Hides the drop target bar. - */ - public void hideDeleteTarget() { - // Restore the QSB search bar, and animate out the drop target bar - prepareStartAnimation(mDropTargetBar); - mShowDropTargetBarAnim.reverse(); - showSearchBar(true); + animator.cancel(); + if (Float.compare(v.getAlpha(), alpha) != 0) { + if (duration > 0) { + animator.alpha(alpha).withLayer().setDuration(duration).start(); + } else { + v.setAlpha(alpha); + AlphaUpdateListener.updateVisibility(v, mAccessibilityEnabled); + } + } } /* @@ -197,9 +206,13 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D */ @Override public void onDragStart(DragSource source, Object info, int dragAction) { - showDeleteTarget(); + animateToState(State.DROP_TARGET, DEFAULT_DRAG_FADE_DURATION); } + /** + * This is called to defer hiding the delete drop target until the drop animation has completed, + * instead of hiding immediately when the drag has ended. + */ public void deferOnDragEnd() { mDeferOnDragEnd = true; } @@ -207,22 +220,25 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D @Override public void onDragEnd() { if (!mDeferOnDragEnd) { - hideDeleteTarget(); + animateToState(State.SEARCH_BAR, DEFAULT_DRAG_FADE_DURATION); } else { mDeferOnDragEnd = false; } } + /** + * @return the bounds of the QSB search bar. + */ public Rect getSearchBarBounds() { - if (mQSBSearchBar != null) { + if (mQSB != null) { final int[] pos = new int[2]; - mQSBSearchBar.getLocationOnScreen(pos); + mQSB.getLocationOnScreen(pos); final Rect rect = new Rect(); rect.left = pos[0]; rect.top = pos[1]; - rect.right = pos[0] + mQSBSearchBar.getWidth(); - rect.bottom = pos[1] + mQSBSearchBar.getHeight(); + rect.right = pos[0] + mQSB.getWidth(); + rect.bottom = pos[1] + mQSB.getHeight(); return rect; } else { return null; @@ -230,8 +246,8 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D } public void enableAccessibleDrag(boolean enable) { - if (mQSBSearchBar != null) { - mQSBSearchBar.setVisibility(enable ? View.GONE : View.VISIBLE); + if (mQSB != null) { + mQSB.setVisibility(enable ? View.GONE : View.VISIBLE); } mInfoDropTarget.enableAccessibleDrag(enable); mDeleteDropTarget.enableAccessibleDrag(enable); |