diff options
Diffstat (limited to 'libraries/ActionBarSherlock/src/com/actionbarsherlock/internal/widget/AbsActionBarView.java')
| -rw-r--r-- | libraries/ActionBarSherlock/src/com/actionbarsherlock/internal/widget/AbsActionBarView.java | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/libraries/ActionBarSherlock/src/com/actionbarsherlock/internal/widget/AbsActionBarView.java b/libraries/ActionBarSherlock/src/com/actionbarsherlock/internal/widget/AbsActionBarView.java new file mode 100644 index 000000000..3a4a44675 --- /dev/null +++ b/libraries/ActionBarSherlock/src/com/actionbarsherlock/internal/widget/AbsActionBarView.java @@ -0,0 +1,291 @@ +/* + * Copyright (C) 2011 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.actionbarsherlock.internal.widget; + +import android.content.Context; +import android.content.res.Configuration; +import android.content.res.TypedArray; +import android.os.Build; +import android.util.AttributeSet; +import android.view.View; +import android.view.animation.DecelerateInterpolator; +import android.view.animation.Interpolator; + +import com.actionbarsherlock.R; +import com.actionbarsherlock.internal.nineoldandroids.animation.Animator; +import com.actionbarsherlock.internal.nineoldandroids.animation.AnimatorSet; +import com.actionbarsherlock.internal.nineoldandroids.animation.ObjectAnimator; +import com.actionbarsherlock.internal.nineoldandroids.view.NineViewGroup; +import com.actionbarsherlock.internal.view.menu.ActionMenuPresenter; +import com.actionbarsherlock.internal.view.menu.ActionMenuView; + +import static com.actionbarsherlock.internal.ResourcesCompat.getResources_getBoolean; + +public abstract class AbsActionBarView extends NineViewGroup { + protected ActionMenuView mMenuView; + protected ActionMenuPresenter mActionMenuPresenter; + protected ActionBarContainer mSplitView; + protected boolean mSplitActionBar; + protected boolean mSplitWhenNarrow; + protected int mContentHeight; + + final Context mContext; + + protected Animator mVisibilityAnim; + protected final VisibilityAnimListener mVisAnimListener = new VisibilityAnimListener(); + + private static final /*Time*/Interpolator sAlphaInterpolator = new DecelerateInterpolator(); + + private static final int FADE_DURATION = 200; + + public AbsActionBarView(Context context) { + super(context); + mContext = context; + } + + public AbsActionBarView(Context context, AttributeSet attrs) { + super(context, attrs); + mContext = context; + } + + public AbsActionBarView(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + mContext = context; + } + + /* + * Must be public so we can dispatch pre-2.2 via ActionBarImpl. + */ + @Override + public void onConfigurationChanged(Configuration newConfig) { + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) { + super.onConfigurationChanged(newConfig); + } else if (mMenuView != null) { + mMenuView.onConfigurationChanged(newConfig); + } + + // Action bar can change size on configuration changes. + // Reread the desired height from the theme-specified style. + TypedArray a = getContext().obtainStyledAttributes(null, R.styleable.SherlockActionBar, + R.attr.actionBarStyle, 0); + setContentHeight(a.getLayoutDimension(R.styleable.SherlockActionBar_height, 0)); + a.recycle(); + if (mSplitWhenNarrow) { + setSplitActionBar(getResources_getBoolean(getContext(), + R.bool.abs__split_action_bar_is_narrow)); + } + if (mActionMenuPresenter != null) { + mActionMenuPresenter.onConfigurationChanged(newConfig); + } + } + + /** + * Sets whether the bar should be split right now, no questions asked. + * @param split true if the bar should split + */ + public void setSplitActionBar(boolean split) { + mSplitActionBar = split; + } + + /** + * Sets whether the bar should split if we enter a narrow screen configuration. + * @param splitWhenNarrow true if the bar should check to split after a config change + */ + public void setSplitWhenNarrow(boolean splitWhenNarrow) { + mSplitWhenNarrow = splitWhenNarrow; + } + + public void setContentHeight(int height) { + mContentHeight = height; + requestLayout(); + } + + public int getContentHeight() { + return mContentHeight; + } + + public void setSplitView(ActionBarContainer splitView) { + mSplitView = splitView; + } + + /** + * @return Current visibility or if animating, the visibility being animated to. + */ + public int getAnimatedVisibility() { + if (mVisibilityAnim != null) { + return mVisAnimListener.mFinalVisibility; + } + return getVisibility(); + } + + public void animateToVisibility(int visibility) { + if (mVisibilityAnim != null) { + mVisibilityAnim.cancel(); + } + if (visibility == VISIBLE) { + if (getVisibility() != VISIBLE) { + setAlpha(0); + if (mSplitView != null && mMenuView != null) { + mMenuView.setAlpha(0); + } + } + ObjectAnimator anim = ObjectAnimator.ofFloat(this, "alpha", 1); + anim.setDuration(FADE_DURATION); + anim.setInterpolator(sAlphaInterpolator); + if (mSplitView != null && mMenuView != null) { + AnimatorSet set = new AnimatorSet(); + ObjectAnimator splitAnim = ObjectAnimator.ofFloat(mMenuView, "alpha", 1); + splitAnim.setDuration(FADE_DURATION); + set.addListener(mVisAnimListener.withFinalVisibility(visibility)); + set.play(anim).with(splitAnim); + set.start(); + } else { + anim.addListener(mVisAnimListener.withFinalVisibility(visibility)); + anim.start(); + } + } else { + ObjectAnimator anim = ObjectAnimator.ofFloat(this, "alpha", 0); + anim.setDuration(FADE_DURATION); + anim.setInterpolator(sAlphaInterpolator); + if (mSplitView != null && mMenuView != null) { + AnimatorSet set = new AnimatorSet(); + ObjectAnimator splitAnim = ObjectAnimator.ofFloat(mMenuView, "alpha", 0); + splitAnim.setDuration(FADE_DURATION); + set.addListener(mVisAnimListener.withFinalVisibility(visibility)); + set.play(anim).with(splitAnim); + set.start(); + } else { + anim.addListener(mVisAnimListener.withFinalVisibility(visibility)); + anim.start(); + } + } + } + + @Override + public void setVisibility(int visibility) { + if (mVisibilityAnim != null) { + mVisibilityAnim.end(); + } + super.setVisibility(visibility); + } + + public boolean showOverflowMenu() { + if (mActionMenuPresenter != null) { + return mActionMenuPresenter.showOverflowMenu(); + } + return false; + } + + public void postShowOverflowMenu() { + post(new Runnable() { + public void run() { + showOverflowMenu(); + } + }); + } + + public boolean hideOverflowMenu() { + if (mActionMenuPresenter != null) { + return mActionMenuPresenter.hideOverflowMenu(); + } + return false; + } + + public boolean isOverflowMenuShowing() { + if (mActionMenuPresenter != null) { + return mActionMenuPresenter.isOverflowMenuShowing(); + } + return false; + } + + public boolean isOverflowReserved() { + return mActionMenuPresenter != null && mActionMenuPresenter.isOverflowReserved(); + } + + public void dismissPopupMenus() { + if (mActionMenuPresenter != null) { + mActionMenuPresenter.dismissPopupMenus(); + } + } + + protected int measureChildView(View child, int availableWidth, int childSpecHeight, + int spacing) { + child.measure(MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), + childSpecHeight); + + availableWidth -= child.getMeasuredWidth(); + availableWidth -= spacing; + + return Math.max(0, availableWidth); + } + + protected int positionChild(View child, int x, int y, int contentHeight) { + int childWidth = child.getMeasuredWidth(); + int childHeight = child.getMeasuredHeight(); + int childTop = y + (contentHeight - childHeight) / 2; + + child.layout(x, childTop, x + childWidth, childTop + childHeight); + + return childWidth; + } + + protected int positionChildInverse(View child, int x, int y, int contentHeight) { + int childWidth = child.getMeasuredWidth(); + int childHeight = child.getMeasuredHeight(); + int childTop = y + (contentHeight - childHeight) / 2; + + child.layout(x - childWidth, childTop, x, childTop + childHeight); + + return childWidth; + } + + protected class VisibilityAnimListener implements Animator.AnimatorListener { + private boolean mCanceled = false; + int mFinalVisibility; + + public VisibilityAnimListener withFinalVisibility(int visibility) { + mFinalVisibility = visibility; + return this; + } + + @Override + public void onAnimationStart(Animator animation) { + setVisibility(VISIBLE); + mVisibilityAnim = animation; + mCanceled = false; + } + + @Override + public void onAnimationEnd(Animator animation) { + if (mCanceled) return; + + mVisibilityAnim = null; + setVisibility(mFinalVisibility); + if (mSplitView != null && mMenuView != null) { + mMenuView.setVisibility(mFinalVisibility); + } + } + + @Override + public void onAnimationCancel(Animator animation) { + mCanceled = true; + } + + @Override + public void onAnimationRepeat(Animator animation) { + } + } +} |