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/* * Copyright (C) 2010 The Android Open Source Project *// www . j av a 2s . c om * 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 com.actionbarsherlock.internal.ResourcesCompat; import android.app.Activity; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.res.Configuration; import android.content.res.TypedArray; import android.graphics.drawable.Drawable; import android.os.Build; import android.os.Parcel; import android.os.Parcelable; import android.text.TextUtils; import android.util.AttributeSet; import android.util.Log; import android.view.Gravity; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.ViewParent; import android.view.accessibility.AccessibilityEvent; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.SpinnerAdapter; import android.widget.TextView; import com.actionbarsherlock.R; import com.actionbarsherlock.app.ActionBar; import com.actionbarsherlock.app.ActionBar.OnNavigationListener; import com.actionbarsherlock.internal.view.menu.ActionMenuItem; import com.actionbarsherlock.internal.view.menu.ActionMenuPresenter; import com.actionbarsherlock.internal.view.menu.ActionMenuView; import com.actionbarsherlock.internal.view.menu.MenuBuilder; import com.actionbarsherlock.internal.view.menu.MenuItemImpl; import com.actionbarsherlock.internal.view.menu.MenuPresenter; import com.actionbarsherlock.internal.view.menu.MenuView; import com.actionbarsherlock.internal.view.menu.SubMenuBuilder; import com.actionbarsherlock.view.CollapsibleActionView; import com.actionbarsherlock.view.Menu; import com.actionbarsherlock.view.MenuItem; import com.actionbarsherlock.view.Window; import static com.actionbarsherlock.internal.ResourcesCompat.getResources_getBoolean; /** * @hide */ public class ActionBarView extends AbsActionBarView { private static final String TAG = "ActionBarView"; /** * Display options applied by default */ public static final int DISPLAY_DEFAULT = 0; /** * Display options that require re-layout as opposed to a simple invalidate */ private static final int DISPLAY_RELAYOUT_MASK = ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_USE_LOGO | ActionBar.DISPLAY_HOME_AS_UP | ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_TITLE; private static final int DEFAULT_CUSTOM_GRAVITY = Gravity.LEFT | Gravity.CENTER_VERTICAL; private int mNavigationMode; private int mDisplayOptions = -1; private CharSequence mTitle; private CharSequence mSubtitle; private Drawable mIcon; private Drawable mLogo; private HomeView mHomeLayout; private HomeView mExpandedHomeLayout; private LinearLayout mTitleLayout; private TextView mTitleView; private TextView mSubtitleView; private View mTitleUpView; private IcsSpinner mSpinner; private IcsLinearLayout mListNavLayout; private ScrollingTabContainerView mTabScrollView; private View mCustomNavView; private IcsProgressBar mProgressView; private IcsProgressBar mIndeterminateProgressView; private int mProgressBarPadding; private int mItemPadding; private int mTitleStyleRes; private int mSubtitleStyleRes; private int mProgressStyle; private int mIndeterminateProgressStyle; private boolean mUserTitle; private boolean mIncludeTabs; private boolean mIsCollapsable; private boolean mIsCollapsed; private MenuBuilder mOptionsMenu; private ActionBarContextView mContextView; private ActionMenuItem mLogoNavItem; private SpinnerAdapter mSpinnerAdapter; private OnNavigationListener mCallback; //UNUSED private Runnable mTabSelector; private ExpandedActionViewMenuPresenter mExpandedMenuPresenter; View mExpandedActionView; Window.Callback mWindowCallback; @SuppressWarnings("rawtypes") private final IcsAdapterView.OnItemSelectedListener mNavItemSelectedListener = new IcsAdapterView.OnItemSelectedListener() { public void onItemSelected(IcsAdapterView parent, View view, int position, long id) { if (mCallback != null) { mCallback.onNavigationItemSelected(position, id); } } public void onNothingSelected(IcsAdapterView parent) { // Do nothing } }; private final OnClickListener mExpandedActionViewUpListener = new OnClickListener() { @Override public void onClick(View v) { final MenuItemImpl item = mExpandedMenuPresenter.mCurrentExpandedItem; if (item != null) { item.collapseActionView(); } } }; private final OnClickListener mUpClickListener = new OnClickListener() { public void onClick(View v) { mWindowCallback.onMenuItemSelected(Window.FEATURE_OPTIONS_PANEL, mLogoNavItem); } }; public ActionBarView(Context context, AttributeSet attrs) { super(context, attrs); // Background is always provided by the container. setBackgroundResource(0); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SherlockActionBar, R.attr.actionBarStyle, 0); ApplicationInfo appInfo = context.getApplicationInfo(); PackageManager pm = context.getPackageManager(); mNavigationMode = a.getInt(R.styleable.SherlockActionBar_navigationMode, ActionBar.NAVIGATION_MODE_STANDARD); mTitle = a.getText(R.styleable.SherlockActionBar_title); mSubtitle = a.getText(R.styleable.SherlockActionBar_subtitle); mLogo = a.getDrawable(R.styleable.SherlockActionBar_logo); if (mLogo == null) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) { if (context instanceof Activity) { //Even though native methods existed in API 9 and 10 they don't work //so just parse the manifest to look for the logo pre-Honeycomb final int resId = ResourcesCompat.loadLogoFromManifest((Activity) context); if (resId != 0) { mLogo = context.getResources().getDrawable(resId); } } } else { if (context instanceof Activity) { try { mLogo = pm.getActivityLogo(((Activity) context).getComponentName()); } catch (NameNotFoundException e) { Log.e(TAG, "Activity component name not found!", e); } } if (mLogo == null) { mLogo = appInfo.loadLogo(pm); } } } mIcon = a.getDrawable(R.styleable.SherlockActionBar_icon); if (mIcon == null) { if (context instanceof Activity) { try { mIcon = pm.getActivityIcon(((Activity) context).getComponentName()); } catch (NameNotFoundException e) { Log.e(TAG, "Activity component name not found!", e); } } if (mIcon == null) { mIcon = appInfo.loadIcon(pm); } } final LayoutInflater inflater = LayoutInflater.from(context); final int homeResId = a.getResourceId( R.styleable.SherlockActionBar_homeLayout, R.layout.abs__action_bar_home); mHomeLayout = (HomeView) inflater.inflate(homeResId, this, false); mExpandedHomeLayout = (HomeView) inflater.inflate(homeResId, this, false); mExpandedHomeLayout.setUp(true); mExpandedHomeLayout.setOnClickListener(mExpandedActionViewUpListener); mExpandedHomeLayout.setContentDescription(getResources().getText( R.string.abs__action_bar_up_description)); mTitleStyleRes = a.getResourceId(R.styleable.SherlockActionBar_titleTextStyle, 0); mSubtitleStyleRes = a.getResourceId(R.styleable.SherlockActionBar_subtitleTextStyle, 0); mProgressStyle = a.getResourceId(R.styleable.SherlockActionBar_progressBarStyle, 0); mIndeterminateProgressStyle = a.getResourceId( R.styleable.SherlockActionBar_indeterminateProgressStyle, 0); mProgressBarPadding = a.getDimensionPixelOffset(R.styleable.SherlockActionBar_progressBarPadding, 0); mItemPadding = a.getDimensionPixelOffset(R.styleable.SherlockActionBar_itemPadding, 0); setDisplayOptions(a.getInt(R.styleable.SherlockActionBar_displayOptions, DISPLAY_DEFAULT)); final int customNavId = a.getResourceId(R.styleable.SherlockActionBar_customNavigationLayout, 0); if (customNavId != 0) { mCustomNavView = inflater.inflate(customNavId, this, false); mNavigationMode = ActionBar.NAVIGATION_MODE_STANDARD; setDisplayOptions(mDisplayOptions | ActionBar.DISPLAY_SHOW_CUSTOM); } mContentHeight = a.getLayoutDimension(R.styleable.SherlockActionBar_height, 0); a.recycle(); mLogoNavItem = new ActionMenuItem(context, 0, android.R.id.home, 0, 0, mTitle); mHomeLayout.setOnClickListener(mUpClickListener); mHomeLayout.setClickable(true); mHomeLayout.setFocusable(true); } /* * Must be public so we can dispatch pre-2.2 via ActionBarImpl. */ @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mTitleView = null; mSubtitleView = null; mTitleUpView = null; if (mTitleLayout != null && mTitleLayout.getParent() == this) { removeView(mTitleLayout); } mTitleLayout = null; if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0) { initTitle(); } if (mTabScrollView != null && mIncludeTabs) { ViewGroup.LayoutParams lp = mTabScrollView.getLayoutParams(); if (lp != null) { lp.width = LayoutParams.WRAP_CONTENT; lp.height = LayoutParams.MATCH_PARENT; } mTabScrollView.setAllowCollapse(true); } } /** * Set the window callback used to invoke menu items; used for dispatching home button presses. * @param cb Window callback to dispatch to */ public void setWindowCallback(Window.Callback cb) { mWindowCallback = cb; } @Override public void onDetachedFromWindow() { super.onDetachedFromWindow(); //UNUSED removeCallbacks(mTabSelector); if (mActionMenuPresenter != null) { mActionMenuPresenter.hideOverflowMenu(); mActionMenuPresenter.hideSubMenus(); } } @Override public boolean shouldDelayChildPressedState() { return false; } public void initProgress() { mProgressView = new IcsProgressBar(mContext, null, 0, mProgressStyle); mProgressView.setId(R.id.abs__progress_horizontal); mProgressView.setMax(10000); addView(mProgressView); } public void initIndeterminateProgress() { mIndeterminateProgressView = new IcsProgressBar(mContext, null, 0, mIndeterminateProgressStyle); mIndeterminateProgressView.setId(R.id.abs__progress_circular); addView(mIndeterminateProgressView); } @Override public void setSplitActionBar(boolean splitActionBar) { if (mSplitActionBar != splitActionBar) { if (mMenuView != null) { final ViewGroup oldParent = (ViewGroup) mMenuView.getParent(); if (oldParent != null) { oldParent.removeView(mMenuView); } if (splitActionBar) { if (mSplitView != null) { mSplitView.addView(mMenuView); } } else { addView(mMenuView); } } if (mSplitView != null) { mSplitView.setVisibility(splitActionBar ? VISIBLE : GONE); } super.setSplitActionBar(splitActionBar); } } public boolean isSplitActionBar() { return mSplitActionBar; } public boolean hasEmbeddedTabs() { return mIncludeTabs; } public void setEmbeddedTabView(ScrollingTabContainerView tabs) { if (mTabScrollView != null) { removeView(mTabScrollView); } mTabScrollView = tabs; mIncludeTabs = tabs != null; if (mIncludeTabs && mNavigationMode == ActionBar.NAVIGATION_MODE_TABS) { addView(mTabScrollView); ViewGroup.LayoutParams lp = mTabScrollView.getLayoutParams(); lp.width = LayoutParams.WRAP_CONTENT; lp.height = LayoutParams.MATCH_PARENT; tabs.setAllowCollapse(true); } } public void setCallback(OnNavigationListener callback) { mCallback = callback; } public void setMenu(Menu menu, MenuPresenter.Callback cb) { if (menu == mOptionsMenu) return; if (mOptionsMenu != null) { mOptionsMenu.removeMenuPresenter(mActionMenuPresenter); mOptionsMenu.removeMenuPresenter(mExpandedMenuPresenter); } MenuBuilder builder = (MenuBuilder) menu; mOptionsMenu = builder; if (mMenuView != null) { final ViewGroup oldParent = (ViewGroup) mMenuView.getParent(); if (oldParent != null) { oldParent.removeView(mMenuView); } } if (mActionMenuPresenter == null) { mActionMenuPresenter = new ActionMenuPresenter(mContext); mActionMenuPresenter.setCallback(cb); mActionMenuPresenter.setId(R.id.abs__action_menu_presenter); mExpandedMenuPresenter = new ExpandedActionViewMenuPresenter(); } ActionMenuView menuView; final LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); if (!mSplitActionBar) { mActionMenuPresenter.setExpandedActionViewsExclusive( getResources_getBoolean(getContext(), R.bool.abs__action_bar_expanded_action_views_exclusive)); configPresenters(builder); menuView = (ActionMenuView) mActionMenuPresenter.getMenuView(this); final ViewGroup oldParent = (ViewGroup) menuView.getParent(); if (oldParent != null && oldParent != this) { oldParent.removeView(menuView); } addView(menuView, layoutParams); } else { mActionMenuPresenter.setExpandedActionViewsExclusive(false); // Allow full screen width in split mode. mActionMenuPresenter.setWidthLimit( getContext().getResources().getDisplayMetrics().widthPixels, true); // No limit to the item count; use whatever will fit. mActionMenuPresenter.setItemLimit(Integer.MAX_VALUE); // Span the whole width layoutParams.width = LayoutParams.MATCH_PARENT; configPresenters(builder); menuView = (ActionMenuView) mActionMenuPresenter.getMenuView(this); if (mSplitView != null) { final ViewGroup oldParent = (ViewGroup) menuView.getParent(); if (oldParent != null && oldParent != mSplitView) { oldParent.removeView(menuView); } menuView.setVisibility(getAnimatedVisibility()); mSplitView.addView(menuView, layoutParams); } else { // We'll add this later if we missed it this time. menuView.setLayoutParams(layoutParams); } } mMenuView = menuView; } private void configPresenters(MenuBuilder builder) { if (builder != null) { builder.addMenuPresenter(mActionMenuPresenter); builder.addMenuPresenter(mExpandedMenuPresenter); } else { mActionMenuPresenter.initForMenu(mContext, null); mExpandedMenuPresenter.initForMenu(mContext, null); mActionMenuPresenter.updateMenuView(true); mExpandedMenuPresenter.updateMenuView(true); } } public boolean hasExpandedActionView() { return mExpandedMenuPresenter != null && mExpandedMenuPresenter.mCurrentExpandedItem != null; } public void collapseActionView() { final MenuItemImpl item = mExpandedMenuPresenter == null ? null : mExpandedMenuPresenter.mCurrentExpandedItem; if (item != null) { item.collapseActionView(); } } public void setCustomNavigationView(View view) { final boolean showCustom = (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0; if (mCustomNavView != null && showCustom) { removeView(mCustomNavView); } mCustomNavView = view; if (mCustomNavView != null && showCustom) { addView(mCustomNavView); } } public CharSequence getTitle() { return mTitle; } /** * Set the action bar title. This will always replace or override window titles. * @param title Title to set * * @see #setWindowTitle(CharSequence) */ public void setTitle(CharSequence title) { mUserTitle = true; setTitleImpl(title); } /** * Set the window title. A window title will always be replaced or overridden by a user title. * @param title Title to set * * @see #setTitle(CharSequence) */ public void setWindowTitle(CharSequence title) { if (!mUserTitle) { setTitleImpl(title); } } private void setTitleImpl(CharSequence title) { mTitle = title; if (mTitleView != null) { mTitleView.setText(title); final boolean visible = mExpandedActionView == null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0 && (!TextUtils.isEmpty(mTitle) || !TextUtils.isEmpty(mSubtitle)); mTitleLayout.setVisibility(visible ? VISIBLE : GONE); } if (mLogoNavItem != null) { mLogoNavItem.setTitle(title); } } public CharSequence getSubtitle() { return mSubtitle; } public void setSubtitle(CharSequence subtitle) { mSubtitle = subtitle; if (mSubtitleView != null) { mSubtitleView.setText(subtitle); mSubtitleView.setVisibility(subtitle != null ? VISIBLE : GONE); final boolean visible = mExpandedActionView == null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0 && (!TextUtils.isEmpty(mTitle) || !TextUtils.isEmpty(mSubtitle)); mTitleLayout.setVisibility(visible ? VISIBLE : GONE); } } public void setHomeButtonEnabled(boolean enable) { mHomeLayout.setEnabled(enable); mHomeLayout.setFocusable(enable); // Make sure the home button has an accurate content description for accessibility. if (!enable) { mHomeLayout.setContentDescription(null); } else if ((mDisplayOptions & ActionBar.DISPLAY_HOME_AS_UP) != 0) { mHomeLayout.setContentDescription(mContext.getResources().getText( R.string.abs__action_bar_up_description)); } else { mHomeLayout.setContentDescription(mContext.getResources().getText( R.string.abs__action_bar_home_description)); } } public void setDisplayOptions(int options) { final int flagsChanged = mDisplayOptions == -1 ? -1 : options ^ mDisplayOptions; mDisplayOptions = options; if ((flagsChanged & DISPLAY_RELAYOUT_MASK) != 0) { final boolean showHome = (options & ActionBar.DISPLAY_SHOW_HOME) != 0; final int vis = showHome && mExpandedActionView == null ? VISIBLE : GONE; mHomeLayout.setVisibility(vis); if ((flagsChanged & ActionBar.DISPLAY_HOME_AS_UP) != 0) { final boolean setUp = (options & ActionBar.DISPLAY_HOME_AS_UP) != 0; mHomeLayout.setUp(setUp); // Showing home as up implicitly enables interaction with it. // In honeycomb it was always enabled, so make this transition // a bit easier for developers in the common case. // (It would be silly to show it as up without responding to it.) if (setUp) { setHomeButtonEnabled(true); } } if ((flagsChanged & ActionBar.DISPLAY_USE_LOGO) != 0) { final boolean logoVis = mLogo != null && (options & ActionBar.DISPLAY_USE_LOGO) != 0; mHomeLayout.setIcon(logoVis ? mLogo : mIcon); } if ((flagsChanged & ActionBar.DISPLAY_SHOW_TITLE) != 0) { if ((options & ActionBar.DISPLAY_SHOW_TITLE) != 0) { initTitle(); } else { removeView(mTitleLayout); } } if (mTitleLayout != null && (flagsChanged & (ActionBar.DISPLAY_HOME_AS_UP | ActionBar.DISPLAY_SHOW_HOME)) != 0) { final boolean homeAsUp = (mDisplayOptions & ActionBar.DISPLAY_HOME_AS_UP) != 0; mTitleUpView.setVisibility(!showHome ? (homeAsUp ? VISIBLE : INVISIBLE) : GONE); mTitleLayout.setEnabled(!showHome && homeAsUp); } if ((flagsChanged & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) { if ((options & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { addView(mCustomNavView); } else { removeView(mCustomNavView); } } requestLayout(); } else { invalidate(); } // Make sure the home button has an accurate content description for accessibility. if (!mHomeLayout.isEnabled()) { mHomeLayout.setContentDescription(null); } else if ((options & ActionBar.DISPLAY_HOME_AS_UP) != 0) { mHomeLayout.setContentDescription(mContext.getResources().getText( R.string.abs__action_bar_up_description)); } else { mHomeLayout.setContentDescription(mContext.getResources().getText( R.string.abs__action_bar_home_description)); } } public void setIcon(Drawable icon) { mIcon = icon; if (icon != null && ((mDisplayOptions & ActionBar.DISPLAY_USE_LOGO) == 0 || mLogo == null)) { mHomeLayout.setIcon(icon); } } public void setIcon(int resId) { setIcon(mContext.getResources().getDrawable(resId)); } public void setLogo(Drawable logo) { mLogo = logo; if (logo != null && (mDisplayOptions & ActionBar.DISPLAY_USE_LOGO) != 0) { mHomeLayout.setIcon(logo); } } public void setLogo(int resId) { setLogo(mContext.getResources().getDrawable(resId)); } public void setNavigationMode(int mode) { final int oldMode = mNavigationMode; if (mode != oldMode) { switch (oldMode) { case ActionBar.NAVIGATION_MODE_LIST: if (mListNavLayout != null) { removeView(mListNavLayout); } break; case ActionBar.NAVIGATION_MODE_TABS: if (mTabScrollView != null && mIncludeTabs) { removeView(mTabScrollView); } } switch (mode) { case ActionBar.NAVIGATION_MODE_LIST: if (mSpinner == null) { mSpinner = new IcsSpinner(mContext, null, R.attr.actionDropDownStyle); mListNavLayout = (IcsLinearLayout) LayoutInflater.from(mContext) .inflate(R.layout.abs__action_bar_tab_bar_view, null); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); params.gravity = Gravity.CENTER; mListNavLayout.addView(mSpinner, params); } if (mSpinner.getAdapter() != mSpinnerAdapter) { mSpinner.setAdapter(mSpinnerAdapter); } mSpinner.setOnItemSelectedListener(mNavItemSelectedListener); addView(mListNavLayout); break; case ActionBar.NAVIGATION_MODE_TABS: if (mTabScrollView != null && mIncludeTabs) { addView(mTabScrollView); } break; } mNavigationMode = mode; requestLayout(); } } public void setDropdownAdapter(SpinnerAdapter adapter) { mSpinnerAdapter = adapter; if (mSpinner != null) { mSpinner.setAdapter(adapter); } } public SpinnerAdapter getDropdownAdapter() { return mSpinnerAdapter; } public void setDropdownSelectedPosition(int position) { mSpinner.setSelection(position); } public int getDropdownSelectedPosition() { return mSpinner.getSelectedItemPosition(); } public View getCustomNavigationView() { return mCustomNavView; } public int getNavigationMode() { return mNavigationMode; } public int getDisplayOptions() { return mDisplayOptions; } @Override protected ViewGroup.LayoutParams generateDefaultLayoutParams() { // Used by custom nav views if they don't supply layout params. Everything else // added to an ActionBarView should have them already. return new ActionBar.LayoutParams(DEFAULT_CUSTOM_GRAVITY); } @Override protected void onFinishInflate() { super.onFinishInflate(); addView(mHomeLayout); if (mCustomNavView != null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { final ViewParent parent = mCustomNavView.getParent(); if (parent != this) { if (parent instanceof ViewGroup) { ((ViewGroup) parent).removeView(mCustomNavView); } addView(mCustomNavView); } } } private void initTitle() { if (mTitleLayout == null) { LayoutInflater inflater = LayoutInflater.from(getContext()); mTitleLayout = (LinearLayout) inflater.inflate(R.layout.abs__action_bar_title_item, this, false); mTitleView = (TextView) mTitleLayout.findViewById(R.id.abs__action_bar_title); mSubtitleView = (TextView) mTitleLayout.findViewById(R.id.abs__action_bar_subtitle); mTitleUpView = mTitleLayout.findViewById(R.id.abs__up); mTitleLayout.setOnClickListener(mUpClickListener); if (mTitleStyleRes != 0) { mTitleView.setTextAppearance(mContext, mTitleStyleRes); } if (mTitle != null) { mTitleView.setText(mTitle); } if (mSubtitleStyleRes != 0) { mSubtitleView.setTextAppearance(mContext, mSubtitleStyleRes); } if (mSubtitle != null) { mSubtitleView.setText(mSubtitle); mSubtitleView.setVisibility(VISIBLE); } final boolean homeAsUp = (mDisplayOptions & ActionBar.DISPLAY_HOME_AS_UP) != 0; final boolean showHome = (mDisplayOptions & ActionBar.DISPLAY_SHOW_HOME) != 0; mTitleUpView.setVisibility(!showHome ? (homeAsUp ? VISIBLE : INVISIBLE) : GONE); mTitleLayout.setEnabled(homeAsUp && !showHome); } addView(mTitleLayout); if (mExpandedActionView != null || (TextUtils.isEmpty(mTitle) && TextUtils.isEmpty(mSubtitle))) { // Don't show while in expanded mode or with empty text mTitleLayout.setVisibility(GONE); } } public void setContextView(ActionBarContextView view) { mContextView = view; } public void setCollapsable(boolean collapsable) { mIsCollapsable = collapsable; } public boolean isCollapsed() { return mIsCollapsed; } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { final int childCount = getChildCount(); if (mIsCollapsable) { int visibleChildren = 0; for (int i = 0; i < childCount; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE && !(child == mMenuView && mMenuView.getChildCount() == 0)) { visibleChildren++; } } if (visibleChildren == 0) { // No size for an empty action bar when collapsable. setMeasuredDimension(0, 0); mIsCollapsed = true; return; } } mIsCollapsed = false; int widthMode = MeasureSpec.getMode(widthMeasureSpec); if (widthMode != MeasureSpec.EXACTLY) { throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + "with android:layout_width=\"match_parent\" (or fill_parent)"); } int heightMode = MeasureSpec.getMode(heightMeasureSpec); if (heightMode != MeasureSpec.AT_MOST) { throw new IllegalStateException(getClass().getSimpleName() + " can only be used " + "with android:layout_height=\"wrap_content\""); } int contentWidth = MeasureSpec.getSize(widthMeasureSpec); int maxHeight = mContentHeight > 0 ? mContentHeight : MeasureSpec.getSize(heightMeasureSpec); final int verticalPadding = getPaddingTop() + getPaddingBottom(); final int paddingLeft = getPaddingLeft(); final int paddingRight = getPaddingRight(); final int height = maxHeight - verticalPadding; final int childSpecHeight = MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST); int availableWidth = contentWidth - paddingLeft - paddingRight; int leftOfCenter = availableWidth / 2; int rightOfCenter = leftOfCenter; HomeView homeLayout = mExpandedActionView != null ? mExpandedHomeLayout : mHomeLayout; if (homeLayout.getVisibility() != GONE) { final ViewGroup.LayoutParams lp = homeLayout.getLayoutParams(); int homeWidthSpec; if (lp.width < 0) { homeWidthSpec = MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST); } else { homeWidthSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY); } homeLayout.measure(homeWidthSpec, MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); final int homeWidth = homeLayout.getMeasuredWidth() + homeLayout.getLeftOffset(); availableWidth = Math.max(0, availableWidth - homeWidth); leftOfCenter = Math.max(0, availableWidth - homeWidth); } if (mMenuView != null && mMenuView.getParent() == this) { availableWidth = measureChildView(mMenuView, availableWidth, childSpecHeight, 0); rightOfCenter = Math.max(0, rightOfCenter - mMenuView.getMeasuredWidth()); } if (mIndeterminateProgressView != null && mIndeterminateProgressView.getVisibility() != GONE) { availableWidth = measureChildView(mIndeterminateProgressView, availableWidth, childSpecHeight, 0); rightOfCenter = Math.max(0, rightOfCenter - mIndeterminateProgressView.getMeasuredWidth()); } final boolean showTitle = mTitleLayout != null && mTitleLayout.getVisibility() != GONE && (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0; if (mExpandedActionView == null) { switch (mNavigationMode) { case ActionBar.NAVIGATION_MODE_LIST: if (mListNavLayout != null) { final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding; availableWidth = Math.max(0, availableWidth - itemPaddingSize); leftOfCenter = Math.max(0, leftOfCenter - itemPaddingSize); mListNavLayout.measure( MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); final int listNavWidth = mListNavLayout.getMeasuredWidth(); availableWidth = Math.max(0, availableWidth - listNavWidth); leftOfCenter = Math.max(0, leftOfCenter - listNavWidth); } break; case ActionBar.NAVIGATION_MODE_TABS: if (mTabScrollView != null) { final int itemPaddingSize = showTitle ? mItemPadding * 2 : mItemPadding; availableWidth = Math.max(0, availableWidth - itemPaddingSize); leftOfCenter = Math.max(0, leftOfCenter - itemPaddingSize); mTabScrollView.measure( MeasureSpec.makeMeasureSpec(availableWidth, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY)); final int tabWidth = mTabScrollView.getMeasuredWidth(); availableWidth = Math.max(0, availableWidth - tabWidth); leftOfCenter = Math.max(0, leftOfCenter - tabWidth); } break; } } View customView = null; if (mExpandedActionView != null) { customView = mExpandedActionView; } else if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) { customView = mCustomNavView; } if (customView != null) { final ViewGroup.LayoutParams lp = generateLayoutParams(customView.getLayoutParams()); final ActionBar.LayoutParams ablp = lp instanceof ActionBar.LayoutParams ? (ActionBar.LayoutParams) lp : null; int horizontalMargin = 0; int verticalMargin = 0; if (ablp != null) { horizontalMargin = ablp.leftMargin + ablp.rightMargin; verticalMargin = ablp.topMargin + ablp.bottomMargin; } // If the action bar is wrapping to its content height, don't allow a custom // view to MATCH_PARENT. int customNavHeightMode; if (mContentHeight <= 0) { customNavHeightMode = MeasureSpec.AT_MOST; } else { customNavHeightMode = lp.height != LayoutParams.WRAP_CONTENT ? MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; } final int customNavHeight = Math.max(0, (lp.height >= 0 ? Math.min(lp.height, height) : height) - verticalMargin); final int customNavWidthMode = lp.width != LayoutParams.WRAP_CONTENT ? MeasureSpec.EXACTLY : MeasureSpec.AT_MOST; int customNavWidth = Math.max(0, (lp.width >= 0 ? Math.min(lp.width, availableWidth) : availableWidth) - horizontalMargin); final int hgrav = (ablp != null ? ablp.gravity : DEFAULT_CUSTOM_GRAVITY) & Gravity.HORIZONTAL_GRAVITY_MASK; // Centering a custom view is treated specially; we try to center within the whole // action bar rather than in the available space. if (hgrav == Gravity.CENTER_HORIZONTAL && lp.width == LayoutParams.MATCH_PARENT) { customNavWidth = Math.min(leftOfCenter, rightOfCenter) * 2; } customView.measure( MeasureSpec.makeMeasureSpec(customNavWidth, customNavWidthMode), MeasureSpec.makeMeasureSpec(customNavHeight, customNavHeightMode)); availableWidth -= horizontalMargin + customView.getMeasuredWidth(); } if (mExpandedActionView == null && showTitle) { availableWidth = measureChildView(mTitleLayout, availableWidth, MeasureSpec.makeMeasureSpec(mContentHeight, MeasureSpec.EXACTLY), 0); leftOfCenter = Math.max(0, leftOfCenter - mTitleLayout.getMeasuredWidth()); } if (mContentHeight <= 0) { int measuredHeight = 0; for (int i = 0; i < childCount; i++) { View v = getChildAt(i); int paddedViewHeight = v.getMeasuredHeight() + verticalPadding; if (paddedViewHeight > measuredHeight) { measuredHeight = paddedViewHeight; } } setMeasuredDimension(contentWidth, measuredHeight); } else { setMeasuredDimension(contentWidth, maxHeight); } if (mContextView != null) { mContextView.setContentHeight(getMeasuredHeight()); } if (mProgressView != null && mProgressView.getVisibility() != GONE) { mProgressView.measure(MeasureSpec.makeMeasureSpec( contentWidth - mProgressBarPadding * 2, MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST)); } } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { int x = getPaddingLeft(); final int y = getPaddingTop(); final int contentHeight = b - t - getPaddingTop() - getPaddingBottom(); if (contentHeight <= 0) { // Nothing to do if we can't see anything. return; } HomeView homeLayout = mExpandedActionView != null ? mExpandedHomeLayout : mHomeLayout; if (homeLayout.getVisibility() != GONE) { final int leftOffset = homeLayout.getLeftOffset(); x += positionChild(homeLayout, x + leftOffset, y, contentHeight) + leftOffset; } if (mExpandedActionView == null) { final boolean showTitle = mTitleLayout != null && mTitleLayout.getVisibility() != GONE && (mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0; if (showTitle) { x += positionChild(mTitleLayout, x, y, contentHeight); } switch (mNavigationMode) { case ActionBar.NAVIGATION_MODE_STANDARD: break; case ActionBar.NAVIGATION_MODE_LIST: if (mListNavLayout != null) { if (showTitle) x += mItemPadding; x += positionChild(mListNavLayout, x, y, contentHeight) + mItemPadding; } break; case ActionBar.NAVIGATION_MODE_TABS: if (mTabScrollView != null) { if (showTitle) x += mItemPadding; x += positionChild(mTabScrollView, x, y, contentHeight) + mItemPadding; } break; } } int menuLeft = r - l - getPaddingRight(); if (mMenuView != null && mMenuView.getParent() == this) { positionChildInverse(mMenuView, menuLeft, y, contentHeight); menuLeft -= mMenuView.getMeasuredWidth(); } if (mIndeterminateProgressView != null && mIndeterminateProgressView.getVisibility() != GONE) { positionChildInverse(mIndeterminateProgressView, menuLeft, y, contentHeight); menuLeft -= mIndeterminateProgressView.getMeasuredWidth(); } View customView = null; if (mExpandedActionView != null) { customView = mExpandedActionView; } else if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0 && mCustomNavView != null) { customView = mCustomNavView; } if (customView != null) { ViewGroup.LayoutParams lp = customView.getLayoutParams(); final ActionBar.LayoutParams ablp = lp instanceof ActionBar.LayoutParams ? (ActionBar.LayoutParams) lp : null; final int gravity = ablp != null ? ablp.gravity : DEFAULT_CUSTOM_GRAVITY; final int navWidth = customView.getMeasuredWidth(); int topMargin = 0; int bottomMargin = 0; if (ablp != null) { x += ablp.leftMargin; menuLeft -= ablp.rightMargin; topMargin = ablp.topMargin; bottomMargin = ablp.bottomMargin; } int hgravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK; // See if we actually have room to truly center; if not push against left or right. if (hgravity == Gravity.CENTER_HORIZONTAL) { final int centeredLeft = ((getRight() - getLeft()) - navWidth) / 2; if (centeredLeft < x) { hgravity = Gravity.LEFT; } else if (centeredLeft + navWidth > menuLeft) { hgravity = Gravity.RIGHT; } } else if (gravity == -1) { hgravity = Gravity.LEFT; } int xpos = 0; switch (hgravity) { case Gravity.CENTER_HORIZONTAL: xpos = ((getRight() - getLeft()) - navWidth) / 2; break; case Gravity.LEFT: xpos = x; break; case Gravity.RIGHT: xpos = menuLeft - navWidth; break; } int vgravity = gravity & Gravity.VERTICAL_GRAVITY_MASK; if (gravity == -1) { vgravity = Gravity.CENTER_VERTICAL; } int ypos = 0; switch (vgravity) { case Gravity.CENTER_VERTICAL: final int paddedTop = getPaddingTop(); final int paddedBottom = getBottom() - getTop() - getPaddingBottom(); ypos = ((paddedBottom - paddedTop) - customView.getMeasuredHeight()) / 2; break; case Gravity.TOP: ypos = getPaddingTop() + topMargin; break; case Gravity.BOTTOM: ypos = getHeight() - getPaddingBottom() - customView.getMeasuredHeight() - bottomMargin; break; } final int customWidth = customView.getMeasuredWidth(); customView.layout(xpos, ypos, xpos + customWidth, ypos + customView.getMeasuredHeight()); x += customWidth; } if (mProgressView != null) { mProgressView.bringToFront(); final int halfProgressHeight = mProgressView.getMeasuredHeight() / 2; mProgressView.layout(mProgressBarPadding, -halfProgressHeight, mProgressBarPadding + mProgressView.getMeasuredWidth(), halfProgressHeight); } } @Override public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) { return new ActionBar.LayoutParams(getContext(), attrs); } @Override public ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) { if (lp == null) { lp = generateDefaultLayoutParams(); } return lp; } @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState state = new SavedState(superState); if (mExpandedMenuPresenter != null && mExpandedMenuPresenter.mCurrentExpandedItem != null) { state.expandedMenuItemId = mExpandedMenuPresenter.mCurrentExpandedItem.getItemId(); } state.isOverflowOpen = isOverflowMenuShowing(); return state; } @Override public void onRestoreInstanceState(Parcelable p) { SavedState state = (SavedState) p; super.onRestoreInstanceState(state.getSuperState()); if (state.expandedMenuItemId != 0 && mExpandedMenuPresenter != null && mOptionsMenu != null) { final MenuItem item = mOptionsMenu.findItem(state.expandedMenuItemId); if (item != null) { item.expandActionView(); } } if (state.isOverflowOpen) { postShowOverflowMenu(); } } static class SavedState extends BaseSavedState { int expandedMenuItemId; boolean isOverflowOpen; SavedState(Parcelable superState) { super(superState); } private SavedState(Parcel in) { super(in); expandedMenuItemId = in.readInt(); isOverflowOpen = in.readInt() != 0; } @Override public void writeToParcel(Parcel out, int flags) { super.writeToParcel(out, flags); out.writeInt(expandedMenuItemId); out.writeInt(isOverflowOpen ? 1 : 0); } public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() { public SavedState createFromParcel(Parcel in) { return new SavedState(in); } public SavedState[] newArray(int size) { return new SavedState[size]; } }; } public static class HomeView extends FrameLayout { private View mUpView; private ImageView mIconView; private int mUpWidth; public HomeView(Context context) { this(context, null); } public HomeView(Context context, AttributeSet attrs) { super(context, attrs); } public void setUp(boolean isUp) { mUpView.setVisibility(isUp ? VISIBLE : GONE); } public void setIcon(Drawable icon) { mIconView.setImageDrawable(icon); } @Override public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { onPopulateAccessibilityEvent(event); return true; } @Override public void onPopulateAccessibilityEvent(AccessibilityEvent event) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { super.onPopulateAccessibilityEvent(event); } final CharSequence cdesc = getContentDescription(); if (!TextUtils.isEmpty(cdesc)) { event.getText().add(cdesc); } } @Override public boolean dispatchHoverEvent(MotionEvent event) { // Don't allow children to hover; we want this to be treated as a single component. return onHoverEvent(event); } @Override protected void onFinishInflate() { mUpView = findViewById(R.id.abs__up); mIconView = (ImageView) findViewById(R.id.abs__home); } public int getLeftOffset() { return mUpView.getVisibility() == GONE ? mUpWidth : 0; } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { measureChildWithMargins(mUpView, widthMeasureSpec, 0, heightMeasureSpec, 0); final LayoutParams upLp = (LayoutParams) mUpView.getLayoutParams(); mUpWidth = upLp.leftMargin + mUpView.getMeasuredWidth() + upLp.rightMargin; int width = mUpView.getVisibility() == GONE ? 0 : mUpWidth; int height = upLp.topMargin + mUpView.getMeasuredHeight() + upLp.bottomMargin; measureChildWithMargins(mIconView, widthMeasureSpec, width, heightMeasureSpec, 0); final LayoutParams iconLp = (LayoutParams) mIconView.getLayoutParams(); width += iconLp.leftMargin + mIconView.getMeasuredWidth() + iconLp.rightMargin; height = Math.max(height, iconLp.topMargin + mIconView.getMeasuredHeight() + iconLp.bottomMargin); final int widthMode = MeasureSpec.getMode(widthMeasureSpec); final int heightMode = MeasureSpec.getMode(heightMeasureSpec); final int widthSize = MeasureSpec.getSize(widthMeasureSpec); final int heightSize = MeasureSpec.getSize(heightMeasureSpec); switch (widthMode) { case MeasureSpec.AT_MOST: width = Math.min(width, widthSize); break; case MeasureSpec.EXACTLY: width = widthSize; break; case MeasureSpec.UNSPECIFIED: default: break; } switch (heightMode) { case MeasureSpec.AT_MOST: height = Math.min(height, heightSize); break; case MeasureSpec.EXACTLY: height = heightSize; break; case MeasureSpec.UNSPECIFIED: default: break; } setMeasuredDimension(width, height); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int vCenter = (b - t) / 2; //UNUSED int width = r - l; int upOffset = 0; if (mUpView.getVisibility() != GONE) { final LayoutParams upLp = (LayoutParams) mUpView.getLayoutParams(); final int upHeight = mUpView.getMeasuredHeight(); final int upWidth = mUpView.getMeasuredWidth(); final int upTop = vCenter - upHeight / 2; mUpView.layout(0, upTop, upWidth, upTop + upHeight); upOffset = upLp.leftMargin + upWidth + upLp.rightMargin; //UNUSED width -= upOffset; l += upOffset; } final LayoutParams iconLp = (LayoutParams) mIconView.getLayoutParams(); final int iconHeight = mIconView.getMeasuredHeight(); final int iconWidth = mIconView.getMeasuredWidth(); final int hCenter = (r - l) / 2; final int iconLeft = upOffset + Math.max(iconLp.leftMargin, hCenter - iconWidth / 2); final int iconTop = Math.max(iconLp.topMargin, vCenter - iconHeight / 2); mIconView.layout(iconLeft, iconTop, iconLeft + iconWidth, iconTop + iconHeight); } } private class ExpandedActionViewMenuPresenter implements MenuPresenter { MenuBuilder mMenu; MenuItemImpl mCurrentExpandedItem; @Override public void initForMenu(Context context, MenuBuilder menu) { // Clear the expanded action view when menus change. if (mMenu != null && mCurrentExpandedItem != null) { mMenu.collapseItemActionView(mCurrentExpandedItem); } mMenu = menu; } @Override public MenuView getMenuView(ViewGroup root) { return null; } @Override public void updateMenuView(boolean cleared) { // Make sure the expanded item we have is still there. if (mCurrentExpandedItem != null) { boolean found = false; if (mMenu != null) { final int count = mMenu.size(); for (int i = 0; i < count; i++) { final MenuItem item = mMenu.getItem(i); if (item == mCurrentExpandedItem) { found = true; break; } } } if (!found) { // The item we had expanded disappeared. Collapse. collapseItemActionView(mMenu, mCurrentExpandedItem); } } } @Override public void setCallback(Callback cb) { } @Override public boolean onSubMenuSelected(SubMenuBuilder subMenu) { return false; } @Override public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { } @Override public boolean flagActionItems() { return false; } @Override public boolean expandItemActionView(MenuBuilder menu, MenuItemImpl item) { mExpandedActionView = item.getActionView(); mExpandedHomeLayout.setIcon(mIcon.getConstantState().newDrawable(/* TODO getResources() */)); mCurrentExpandedItem = item; if (mExpandedActionView.getParent() != ActionBarView.this) { addView(mExpandedActionView); } if (mExpandedHomeLayout.getParent() != ActionBarView.this) { addView(mExpandedHomeLayout); } mHomeLayout.setVisibility(GONE); if (mTitleLayout != null) mTitleLayout.setVisibility(GONE); if (mTabScrollView != null) mTabScrollView.setVisibility(GONE); if (mSpinner != null) mSpinner.setVisibility(GONE); if (mCustomNavView != null) mCustomNavView.setVisibility(GONE); requestLayout(); item.setActionViewExpanded(true); if (mExpandedActionView instanceof CollapsibleActionView) { ((CollapsibleActionView) mExpandedActionView).onActionViewExpanded(); } return true; } @Override public boolean collapseItemActionView(MenuBuilder menu, MenuItemImpl item) { // Do this before detaching the actionview from the hierarchy, in case // it needs to dismiss the soft keyboard, etc. if (mExpandedActionView instanceof CollapsibleActionView) { ((CollapsibleActionView) mExpandedActionView).onActionViewCollapsed(); } removeView(mExpandedActionView); removeView(mExpandedHomeLayout); mExpandedActionView = null; if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_HOME) != 0) { mHomeLayout.setVisibility(VISIBLE); } if ((mDisplayOptions & ActionBar.DISPLAY_SHOW_TITLE) != 0) { if (mTitleLayout == null) { initTitle(); } else { mTitleLayout.setVisibility(VISIBLE); } } if (mTabScrollView != null && mNavigationMode == ActionBar.NAVIGATION_MODE_TABS) { mTabScrollView.setVisibility(VISIBLE); } if (mSpinner != null && mNavigationMode == ActionBar.NAVIGATION_MODE_LIST) { mSpinner.setVisibility(VISIBLE); } if (mCustomNavView != null && (mDisplayOptions & ActionBar.DISPLAY_SHOW_CUSTOM) != 0) { mCustomNavView.setVisibility(VISIBLE); } mExpandedHomeLayout.setIcon(null); mCurrentExpandedItem = null; requestLayout(); item.setActionViewExpanded(false); return true; } @Override public int getId() { return 0; } @Override public Parcelable onSaveInstanceState() { return null; } @Override public void onRestoreInstanceState(Parcelable state) { } } }