| /* |
| * Copyright (C) 2022 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 android.inputmethodservice.navigationbar; |
| |
| import static android.view.ViewGroup.LayoutParams.MATCH_PARENT; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.inputmethodservice.navigationbar.ReverseLinearLayout.ReverseRelativeLayout; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.view.Gravity; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.FrameLayout; |
| import android.widget.LinearLayout; |
| import android.widget.Space; |
| |
| /** |
| * @hide |
| */ |
| public final class NavigationBarInflaterView extends FrameLayout { |
| |
| private static final String TAG = "NavBarInflater"; |
| |
| public static final String NAV_BAR_VIEWS = "sysui_nav_bar"; |
| public static final String NAV_BAR_LEFT = "sysui_nav_bar_left"; |
| public static final String NAV_BAR_RIGHT = "sysui_nav_bar_right"; |
| |
| public static final String MENU_IME_ROTATE = "menu_ime"; |
| public static final String BACK = "back"; |
| public static final String HOME = "home"; |
| public static final String RECENT = "recent"; |
| public static final String NAVSPACE = "space"; |
| public static final String CLIPBOARD = "clipboard"; |
| public static final String HOME_HANDLE = "home_handle"; |
| public static final String KEY = "key"; |
| public static final String LEFT = "left"; |
| public static final String RIGHT = "right"; |
| public static final String CONTEXTUAL = "contextual"; |
| public static final String IME_SWITCHER = "ime_switcher"; |
| |
| public static final String GRAVITY_SEPARATOR = ";"; |
| public static final String BUTTON_SEPARATOR = ","; |
| |
| public static final String SIZE_MOD_START = "["; |
| public static final String SIZE_MOD_END = "]"; |
| |
| public static final String KEY_CODE_START = "("; |
| public static final String KEY_IMAGE_DELIM = ":"; |
| public static final String KEY_CODE_END = ")"; |
| private static final String WEIGHT_SUFFIX = "W"; |
| private static final String WEIGHT_CENTERED_SUFFIX = "WC"; |
| private static final String ABSOLUTE_SUFFIX = "A"; |
| private static final String ABSOLUTE_VERTICAL_CENTERED_SUFFIX = "C"; |
| |
| // Copied from "config_navBarLayoutHandle: |
| private static final String CONFIG_NAV_BAR_LAYOUT_HANDLE = |
| "back[70AC];home_handle;ime_switcher[70AC]"; |
| |
| protected LayoutInflater mLayoutInflater; |
| protected LayoutInflater mLandscapeInflater; |
| |
| protected FrameLayout mHorizontal; |
| |
| SparseArray<ButtonDispatcher> mButtonDispatchers; |
| |
| private View mLastPortrait; |
| private View mLastLandscape; |
| |
| private boolean mAlternativeOrder; |
| |
| public NavigationBarInflaterView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| createInflaters(); |
| } |
| |
| void createInflaters() { |
| mLayoutInflater = LayoutInflater.from(mContext); |
| Configuration landscape = new Configuration(); |
| landscape.setTo(mContext.getResources().getConfiguration()); |
| landscape.orientation = Configuration.ORIENTATION_LANDSCAPE; |
| mLandscapeInflater = LayoutInflater.from(mContext.createConfigurationContext(landscape)); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| inflateChildren(); |
| clearViews(); |
| inflateLayout(getDefaultLayout()); |
| } |
| |
| private void inflateChildren() { |
| removeAllViews(); |
| mHorizontal = (FrameLayout) mLayoutInflater.inflate( |
| com.android.internal.R.layout.input_method_navigation_layout, |
| this /* root */, false /* attachToRoot */); |
| addView(mHorizontal); |
| updateAlternativeOrder(); |
| } |
| |
| String getDefaultLayout() { |
| return CONFIG_NAV_BAR_LAYOUT_HANDLE; |
| } |
| |
| void setButtonDispatchers(SparseArray<ButtonDispatcher> buttonDispatchers) { |
| mButtonDispatchers = buttonDispatchers; |
| for (int i = 0; i < buttonDispatchers.size(); i++) { |
| initiallyFill(buttonDispatchers.valueAt(i)); |
| } |
| } |
| |
| void updateButtonDispatchersCurrentView() { |
| if (mButtonDispatchers != null) { |
| View view = mHorizontal; |
| for (int i = 0; i < mButtonDispatchers.size(); i++) { |
| final ButtonDispatcher dispatcher = mButtonDispatchers.valueAt(i); |
| dispatcher.setCurrentView(view); |
| } |
| } |
| } |
| |
| void setAlternativeOrder(boolean alternativeOrder) { |
| if (alternativeOrder != mAlternativeOrder) { |
| mAlternativeOrder = alternativeOrder; |
| updateAlternativeOrder(); |
| } |
| } |
| |
| private void updateAlternativeOrder() { |
| updateAlternativeOrder(mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_ends_group)); |
| updateAlternativeOrder(mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_center_group)); |
| } |
| |
| private void updateAlternativeOrder(View v) { |
| if (v instanceof ReverseLinearLayout) { |
| ((ReverseLinearLayout) v).setAlternativeOrder(mAlternativeOrder); |
| } |
| } |
| |
| private void initiallyFill( |
| ButtonDispatcher buttonDispatcher) { |
| addAll(buttonDispatcher, mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_ends_group)); |
| addAll(buttonDispatcher, mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_center_group)); |
| } |
| |
| private void addAll(ButtonDispatcher buttonDispatcher, ViewGroup parent) { |
| for (int i = 0; i < parent.getChildCount(); i++) { |
| // Need to manually search for each id, just in case each group has more than one |
| // of a single id. It probably mostly a waste of time, but shouldn't take long |
| // and will only happen once. |
| if (parent.getChildAt(i).getId() == buttonDispatcher.getId()) { |
| buttonDispatcher.addView(parent.getChildAt(i)); |
| } |
| if (parent.getChildAt(i) instanceof ViewGroup) { |
| addAll(buttonDispatcher, (ViewGroup) parent.getChildAt(i)); |
| } |
| } |
| } |
| |
| protected void inflateLayout(String newLayout) { |
| if (newLayout == null) { |
| newLayout = getDefaultLayout(); |
| } |
| String[] sets = newLayout.split(GRAVITY_SEPARATOR, 3); |
| if (sets.length != 3) { |
| Log.d(TAG, "Invalid layout."); |
| newLayout = getDefaultLayout(); |
| sets = newLayout.split(GRAVITY_SEPARATOR, 3); |
| } |
| String[] start = sets[0].split(BUTTON_SEPARATOR); |
| String[] center = sets[1].split(BUTTON_SEPARATOR); |
| String[] end = sets[2].split(BUTTON_SEPARATOR); |
| // Inflate these in start to end order or accessibility traversal will be messed up. |
| inflateButtons(start, mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_ends_group), |
| false /* landscape */, true /* start */); |
| |
| inflateButtons(center, mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_center_group), |
| false /* landscape */, false /* start */); |
| |
| addGravitySpacer(mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_ends_group)); |
| |
| inflateButtons(end, mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_ends_group), |
| false /* landscape */, false /* start */); |
| |
| updateButtonDispatchersCurrentView(); |
| } |
| |
| private void addGravitySpacer(LinearLayout layout) { |
| layout.addView(new Space(mContext), new LinearLayout.LayoutParams(0, 0, 1)); |
| } |
| |
| private void inflateButtons(String[] buttons, ViewGroup parent, boolean landscape, |
| boolean start) { |
| for (int i = 0; i < buttons.length; i++) { |
| inflateButton(buttons[i], parent, landscape, start); |
| } |
| } |
| |
| private ViewGroup.LayoutParams copy(ViewGroup.LayoutParams layoutParams) { |
| if (layoutParams instanceof LinearLayout.LayoutParams) { |
| return new LinearLayout.LayoutParams(layoutParams.width, layoutParams.height, |
| ((LinearLayout.LayoutParams) layoutParams).weight); |
| } |
| return new LayoutParams(layoutParams.width, layoutParams.height); |
| } |
| |
| @Nullable |
| protected View inflateButton(String buttonSpec, ViewGroup parent, boolean landscape, |
| boolean start) { |
| LayoutInflater inflater = landscape ? mLandscapeInflater : mLayoutInflater; |
| View v = createView(buttonSpec, parent, inflater); |
| if (v == null) return null; |
| |
| v = applySize(v, buttonSpec, landscape, start); |
| parent.addView(v); |
| addToDispatchers(v); |
| View lastView = landscape ? mLastLandscape : mLastPortrait; |
| View accessibilityView = v; |
| if (v instanceof ReverseRelativeLayout) { |
| accessibilityView = ((ReverseRelativeLayout) v).getChildAt(0); |
| } |
| if (lastView != null) { |
| accessibilityView.setAccessibilityTraversalAfter(lastView.getId()); |
| } |
| if (landscape) { |
| mLastLandscape = accessibilityView; |
| } else { |
| mLastPortrait = accessibilityView; |
| } |
| return v; |
| } |
| |
| private View applySize(View v, String buttonSpec, boolean landscape, boolean start) { |
| String sizeStr = extractSize(buttonSpec); |
| if (sizeStr == null) return v; |
| |
| if (sizeStr.contains(WEIGHT_SUFFIX) || sizeStr.contains(ABSOLUTE_SUFFIX)) { |
| // To support gravity, wrap in RelativeLayout and apply gravity to it. |
| // Children wanting to use gravity must be smaller than the frame. |
| ReverseRelativeLayout frame = new ReverseRelativeLayout(mContext); |
| LayoutParams childParams = new LayoutParams(v.getLayoutParams()); |
| |
| // Compute gravity to apply |
| int gravity = (landscape) ? (start ? Gravity.TOP : Gravity.BOTTOM) |
| : (start ? Gravity.START : Gravity.END); |
| if (sizeStr.endsWith(WEIGHT_CENTERED_SUFFIX)) { |
| gravity = Gravity.CENTER; |
| } else if (sizeStr.endsWith(ABSOLUTE_VERTICAL_CENTERED_SUFFIX)) { |
| gravity = Gravity.CENTER_VERTICAL; |
| } |
| |
| // Set default gravity, flipped if needed in reversed layouts (270 RTL and 90 LTR) |
| frame.setDefaultGravity(gravity); |
| frame.setGravity(gravity); // Apply gravity to root |
| |
| frame.addView(v, childParams); |
| |
| if (sizeStr.contains(WEIGHT_SUFFIX)) { |
| // Use weighting to set the width of the frame |
| float weight = Float.parseFloat( |
| sizeStr.substring(0, sizeStr.indexOf(WEIGHT_SUFFIX))); |
| frame.setLayoutParams(new LinearLayout.LayoutParams(0, MATCH_PARENT, weight)); |
| } else { |
| int width = (int) convertDpToPx(mContext, |
| Float.parseFloat(sizeStr.substring(0, sizeStr.indexOf(ABSOLUTE_SUFFIX)))); |
| frame.setLayoutParams(new LinearLayout.LayoutParams(width, MATCH_PARENT)); |
| } |
| |
| // Ensure ripples can be drawn outside bounds |
| frame.setClipChildren(false); |
| frame.setClipToPadding(false); |
| |
| return frame; |
| } |
| |
| float size = Float.parseFloat(sizeStr); |
| ViewGroup.LayoutParams params = v.getLayoutParams(); |
| params.width = (int) (params.width * size); |
| return v; |
| } |
| |
| View createView(String buttonSpec, ViewGroup parent, LayoutInflater inflater) { |
| View v = null; |
| String button = extractButton(buttonSpec); |
| if (LEFT.equals(button)) { |
| button = extractButton(NAVSPACE); |
| } else if (RIGHT.equals(button)) { |
| button = extractButton(MENU_IME_ROTATE); |
| } |
| if (HOME.equals(button)) { |
| //v = inflater.inflate(R.layout.home, parent, false); |
| } else if (BACK.equals(button)) { |
| v = inflater.inflate(com.android.internal.R.layout.input_method_nav_back, parent, |
| false); |
| } else if (RECENT.equals(button)) { |
| //v = inflater.inflate(R.layout.recent_apps, parent, false); |
| } else if (MENU_IME_ROTATE.equals(button)) { |
| //v = inflater.inflate(R.layout.menu_ime, parent, false); |
| } else if (NAVSPACE.equals(button)) { |
| //v = inflater.inflate(R.layout.nav_key_space, parent, false); |
| } else if (CLIPBOARD.equals(button)) { |
| //v = inflater.inflate(R.layout.clipboard, parent, false); |
| } else if (CONTEXTUAL.equals(button)) { |
| //v = inflater.inflate(R.layout.contextual, parent, false); |
| } else if (HOME_HANDLE.equals(button)) { |
| v = inflater.inflate(com.android.internal.R.layout.input_method_nav_home_handle, |
| parent, false); |
| } else if (IME_SWITCHER.equals(button)) { |
| v = inflater.inflate(com.android.internal.R.layout.input_method_nav_ime_switcher, |
| parent, false); |
| } else if (button.startsWith(KEY)) { |
| /* |
| String uri = extractImage(button); |
| int code = extractKeycode(button); |
| v = inflater.inflate(R.layout.custom_key, parent, false); |
| ((KeyButtonView) v).setCode(code); |
| if (uri != null) { |
| if (uri.contains(":")) { |
| ((KeyButtonView) v).loadAsync(Icon.createWithContentUri(uri)); |
| } else if (uri.contains("/")) { |
| int index = uri.indexOf('/'); |
| String pkg = uri.substring(0, index); |
| int id = Integer.parseInt(uri.substring(index + 1)); |
| ((KeyButtonView) v).loadAsync(Icon.createWithResource(pkg, id)); |
| } |
| } |
| */ |
| } |
| return v; |
| } |
| |
| /* |
| public static String extractImage(String buttonSpec) { |
| if (!buttonSpec.contains(KEY_IMAGE_DELIM)) { |
| return null; |
| } |
| final int start = buttonSpec.indexOf(KEY_IMAGE_DELIM); |
| String subStr = buttonSpec.substring(start + 1, buttonSpec.indexOf(KEY_CODE_END)); |
| return subStr; |
| } |
| |
| public static int extractKeycode(String buttonSpec) { |
| if (!buttonSpec.contains(KEY_CODE_START)) { |
| return 1; |
| } |
| final int start = buttonSpec.indexOf(KEY_CODE_START); |
| String subStr = buttonSpec.substring(start + 1, buttonSpec.indexOf(KEY_IMAGE_DELIM)); |
| return Integer.parseInt(subStr); |
| } |
| */ |
| |
| private static String extractSize(String buttonSpec) { |
| if (!buttonSpec.contains(SIZE_MOD_START)) { |
| return null; |
| } |
| final int sizeStart = buttonSpec.indexOf(SIZE_MOD_START); |
| return buttonSpec.substring(sizeStart + 1, buttonSpec.indexOf(SIZE_MOD_END)); |
| } |
| |
| private static String extractButton(String buttonSpec) { |
| if (!buttonSpec.contains(SIZE_MOD_START)) { |
| return buttonSpec; |
| } |
| return buttonSpec.substring(0, buttonSpec.indexOf(SIZE_MOD_START)); |
| } |
| |
| private void addToDispatchers(View v) { |
| if (mButtonDispatchers != null) { |
| final int indexOfKey = mButtonDispatchers.indexOfKey(v.getId()); |
| if (indexOfKey >= 0) { |
| mButtonDispatchers.valueAt(indexOfKey).addView(v); |
| } |
| if (v instanceof ViewGroup) { |
| final ViewGroup viewGroup = (ViewGroup) v; |
| final int numChildViews = viewGroup.getChildCount(); |
| for (int i = 0; i < numChildViews; i++) { |
| addToDispatchers(viewGroup.getChildAt(i)); |
| } |
| } |
| } |
| } |
| |
| private void clearViews() { |
| if (mButtonDispatchers != null) { |
| for (int i = 0; i < mButtonDispatchers.size(); i++) { |
| mButtonDispatchers.valueAt(i).clear(); |
| } |
| } |
| clearAllChildren(mHorizontal.findViewById( |
| com.android.internal.R.id.input_method_nav_buttons)); |
| } |
| |
| private void clearAllChildren(ViewGroup group) { |
| for (int i = 0; i < group.getChildCount(); i++) { |
| ((ViewGroup) group.getChildAt(i)).removeAllViews(); |
| } |
| } |
| |
| private static float convertDpToPx(Context context, float dp) { |
| return dp * context.getResources().getDisplayMetrics().density; |
| } |
| } |
