| /* |
| * Copyright (C) 2008 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.android.packageinstaller; |
| |
| import static android.view.ViewGroup.LayoutParams.MATCH_PARENT; |
| |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.text.TextUtils; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.view.ViewParent; |
| import android.view.ViewStub; |
| import android.view.Window; |
| import android.view.WindowManager; |
| import android.widget.Button; |
| import android.widget.FrameLayout; |
| import android.widget.ImageView; |
| import android.widget.ListAdapter; |
| import android.widget.ListView; |
| import android.widget.ScrollView; |
| import android.widget.TextView; |
| |
| import androidx.annotation.Nullable; |
| |
| import com.android.packageinstaller.R; |
| |
| import java.lang.ref.WeakReference; |
| |
| public class AlertController { |
| private final Context mContext; |
| private final DialogInterface mDialogInterface; |
| protected final Window mWindow; |
| |
| private CharSequence mTitle; |
| protected CharSequence mMessage; |
| protected ListView mListView; |
| private View mView; |
| |
| private int mViewLayoutResId; |
| |
| private int mViewSpacingLeft; |
| private int mViewSpacingTop; |
| private int mViewSpacingRight; |
| private int mViewSpacingBottom; |
| private boolean mViewSpacingSpecified = false; |
| |
| private Button mButtonPositive; |
| private CharSequence mButtonPositiveText; |
| private Message mButtonPositiveMessage; |
| |
| private Button mButtonNegative; |
| private CharSequence mButtonNegativeText; |
| private Message mButtonNegativeMessage; |
| |
| private Button mButtonNeutral; |
| private CharSequence mButtonNeutralText; |
| private Message mButtonNeutralMessage; |
| |
| protected ScrollView mScrollView; |
| |
| private int mIconId = 0; |
| private Drawable mIcon; |
| |
| private ImageView mIconView; |
| private TextView mTitleView; |
| protected TextView mMessageView; |
| |
| private ListAdapter mAdapter; |
| |
| private int mAlertDialogLayout; |
| private int mButtonPanelSideLayout; |
| private int mListLayout; |
| private int mMultiChoiceItemLayout; |
| private int mSingleChoiceItemLayout; |
| private int mListItemLayout; |
| |
| private boolean mShowTitle; |
| |
| private Handler mHandler; |
| |
| private final View.OnClickListener mButtonHandler = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| final Message m; |
| if (v == mButtonPositive && mButtonPositiveMessage != null) { |
| m = Message.obtain(mButtonPositiveMessage); |
| } else if (v == mButtonNegative && mButtonNegativeMessage != null) { |
| m = Message.obtain(mButtonNegativeMessage); |
| } else if (v == mButtonNeutral && mButtonNeutralMessage != null) { |
| m = Message.obtain(mButtonNeutralMessage); |
| } else { |
| m = null; |
| } |
| |
| if (m != null) { |
| m.sendToTarget(); |
| } |
| |
| // Post a message so we dismiss after the above handlers are executed |
| mHandler.obtainMessage(ButtonHandler.MSG_DISMISS_DIALOG, mDialogInterface) |
| .sendToTarget(); |
| } |
| }; |
| |
| private static final class ButtonHandler extends Handler { |
| // Button clicks have Message.what as the BUTTON{1,2,3} constant |
| private static final int MSG_DISMISS_DIALOG = 1; |
| |
| private WeakReference<DialogInterface> mDialog; |
| |
| public ButtonHandler(DialogInterface dialog) { |
| mDialog = new WeakReference<>(dialog); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| |
| case DialogInterface.BUTTON_POSITIVE: |
| case DialogInterface.BUTTON_NEGATIVE: |
| case DialogInterface.BUTTON_NEUTRAL: |
| ((DialogInterface.OnClickListener) msg.obj).onClick(mDialog.get(), msg.what); |
| break; |
| |
| case MSG_DISMISS_DIALOG: |
| ((DialogInterface) msg.obj).dismiss(); |
| } |
| } |
| } |
| |
| public AlertController(Context context, DialogInterface di, Window window) { |
| mContext = context; |
| mDialogInterface = di; |
| mWindow = window; |
| mHandler = new ButtonHandler(di); |
| |
| final TypedArray a = context.obtainStyledAttributes(null, |
| R.styleable.AlertDialog, R.attr.alertDialogStyle, 0); |
| |
| mAlertDialogLayout = a.getResourceId( |
| R.styleable.AlertDialog_layout, R.layout.alert_dialog_material); |
| mButtonPanelSideLayout = a.getResourceId( |
| R.styleable.AlertDialog_buttonPanelSideLayout, 0); |
| mListLayout = a.getResourceId( |
| R.styleable.AlertDialog_listLayout, R.layout.select_dialog_material); |
| |
| mMultiChoiceItemLayout = a.getResourceId( |
| R.styleable.AlertDialog_multiChoiceItemLayout, |
| R.layout.select_dialog_multichoice_material); |
| mSingleChoiceItemLayout = a.getResourceId( |
| R.styleable.AlertDialog_singleChoiceItemLayout, |
| R.layout.select_dialog_singlechoice_material); |
| mListItemLayout = a.getResourceId( |
| R.styleable.AlertDialog_listItemLayout, |
| R.layout.select_dialog_item_material); |
| mShowTitle = a.getBoolean(R.styleable.AlertDialog_showTitle, true); |
| |
| a.recycle(); |
| |
| /* We use a custom title so never request a window title */ |
| window.requestFeature(Window.FEATURE_NO_TITLE); |
| } |
| |
| static boolean canTextInput(View v) { |
| if (v.onCheckIsTextEditor()) { |
| return true; |
| } |
| |
| if (!(v instanceof ViewGroup)) { |
| return false; |
| } |
| |
| ViewGroup vg = (ViewGroup)v; |
| int i = vg.getChildCount(); |
| while (i > 0) { |
| i--; |
| v = vg.getChildAt(i); |
| if (canTextInput(v)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| public void installContent() { |
| mWindow.setContentView(mAlertDialogLayout); |
| setupView(); |
| } |
| |
| public void setTitle(CharSequence title) { |
| mTitle = title; |
| if (mTitleView != null) { |
| mTitleView.setText(title); |
| } |
| mWindow.setTitle(title); |
| } |
| |
| /** |
| * Set the view resource to display in the dialog. |
| */ |
| public void setView(int layoutResId) { |
| mView = null; |
| mViewLayoutResId = layoutResId; |
| mViewSpacingSpecified = false; |
| } |
| |
| /** |
| * Sets a click listener or a message to be sent when the button is clicked. |
| * You only need to pass one of {@code listener} or {@code msg}. |
| * |
| * @param whichButton Which button, can be one of |
| * {@link DialogInterface#BUTTON_POSITIVE}, |
| * {@link DialogInterface#BUTTON_NEGATIVE}, or |
| * {@link DialogInterface#BUTTON_NEUTRAL} |
| * @param text The text to display in positive button. |
| * @param listener The {@link DialogInterface.OnClickListener} to use. |
| * @param msg The {@link Message} to be sent when clicked. |
| */ |
| public void setButton(int whichButton, CharSequence text, |
| DialogInterface.OnClickListener listener, Message msg) { |
| |
| if (msg == null && listener != null) { |
| msg = mHandler.obtainMessage(whichButton, listener); |
| } |
| |
| switch (whichButton) { |
| |
| case DialogInterface.BUTTON_POSITIVE: |
| mButtonPositiveText = text; |
| mButtonPositiveMessage = msg; |
| break; |
| |
| case DialogInterface.BUTTON_NEGATIVE: |
| mButtonNegativeText = text; |
| mButtonNegativeMessage = msg; |
| break; |
| |
| case DialogInterface.BUTTON_NEUTRAL: |
| mButtonNeutralText = text; |
| mButtonNeutralMessage = msg; |
| break; |
| |
| default: |
| throw new IllegalArgumentException("Button does not exist"); |
| } |
| } |
| |
| /** |
| * Specifies the icon to display next to the alert title. |
| * |
| * @param resId the resource identifier of the drawable to use as the icon, |
| * or 0 for no icon |
| */ |
| public void setIcon(int resId) { |
| mIcon = null; |
| mIconId = resId; |
| |
| if (mIconView != null) { |
| if (resId != 0) { |
| mIconView.setVisibility(View.VISIBLE); |
| mIconView.setImageResource(mIconId); |
| } else { |
| mIconView.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| /** |
| * Specifies the icon to display next to the alert title. |
| * |
| * @param icon the drawable to use as the icon or null for no icon |
| */ |
| public void setIcon(Drawable icon) { |
| mIcon = icon; |
| mIconId = 0; |
| |
| if (mIconView != null) { |
| if (icon != null) { |
| mIconView.setVisibility(View.VISIBLE); |
| mIconView.setImageDrawable(icon); |
| } else { |
| mIconView.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| public Button getButton(int whichButton) { |
| switch (whichButton) { |
| case DialogInterface.BUTTON_POSITIVE: |
| return mButtonPositive; |
| case DialogInterface.BUTTON_NEGATIVE: |
| return mButtonNegative; |
| case DialogInterface.BUTTON_NEUTRAL: |
| return mButtonNeutral; |
| default: |
| return null; |
| } |
| } |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| return mScrollView != null && mScrollView.executeKeyEvent(event); |
| } |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| return mScrollView != null && mScrollView.executeKeyEvent(event); |
| } |
| |
| /** |
| * Resolves whether a custom or default panel should be used. Removes the |
| * default panel if a custom panel should be used. If the resolved panel is |
| * a view stub, inflates before returning. |
| * |
| * @param customPanel the custom panel |
| * @param defaultPanel the default panel |
| * @return the panel to use |
| */ |
| @Nullable |
| private ViewGroup resolvePanel(@Nullable View customPanel, @Nullable View defaultPanel) { |
| if (customPanel == null) { |
| // Inflate the default panel, if needed. |
| if (defaultPanel instanceof ViewStub) { |
| defaultPanel = ((ViewStub) defaultPanel).inflate(); |
| } |
| |
| return (ViewGroup) defaultPanel; |
| } |
| |
| // Remove the default panel entirely. |
| if (defaultPanel != null) { |
| final ViewParent parent = defaultPanel.getParent(); |
| if (parent instanceof ViewGroup) { |
| ((ViewGroup) parent).removeView(defaultPanel); |
| } |
| } |
| |
| // Inflate the custom panel, if needed. |
| if (customPanel instanceof ViewStub) { |
| customPanel = ((ViewStub) customPanel).inflate(); |
| } |
| |
| return (ViewGroup) customPanel; |
| } |
| |
| private void setupView() { |
| final View parentPanel = mWindow.findViewById(R.id.parentPanel); |
| final View defaultTopPanel = parentPanel.findViewById(R.id.topPanel); |
| final View defaultContentPanel = parentPanel.findViewById(R.id.contentPanel); |
| final View defaultButtonPanel = parentPanel.findViewById(R.id.buttonPanel); |
| |
| // Install custom content before setting up the title or buttons so |
| // that we can handle panel overrides. |
| final ViewGroup customPanel = parentPanel.findViewById(R.id.customPanel); |
| setupCustomContent(customPanel); |
| |
| final View customTopPanel = customPanel.findViewById(R.id.topPanel); |
| final View customContentPanel = customPanel.findViewById(R.id.contentPanel); |
| final View customButtonPanel = customPanel.findViewById(R.id.buttonPanel); |
| |
| // Resolve the correct panels and remove the defaults, if needed. |
| final ViewGroup topPanel = resolvePanel(customTopPanel, defaultTopPanel); |
| final ViewGroup contentPanel = resolvePanel(customContentPanel, defaultContentPanel); |
| final ViewGroup buttonPanel = resolvePanel(customButtonPanel, defaultButtonPanel); |
| |
| setupContent(contentPanel); |
| setupButtons(buttonPanel); |
| setupTitle(topPanel); |
| |
| final boolean hasCustomPanel = customPanel != null |
| && customPanel.getVisibility() != View.GONE; |
| final boolean hasTopPanel = topPanel != null |
| && topPanel.getVisibility() != View.GONE; |
| final boolean hasButtonPanel = buttonPanel != null |
| && buttonPanel.getVisibility() != View.GONE; |
| |
| if (!parentPanel.isInTouchMode()) { |
| final View content = hasCustomPanel ? customPanel : contentPanel; |
| if (!requestFocusForContent(content)) { |
| requestFocusForDefaultButton(); |
| } |
| } |
| |
| if (hasTopPanel) { |
| // Only clip scrolling content to padding if we have a title. |
| if (mScrollView != null) { |
| mScrollView.setClipToPadding(true); |
| } |
| |
| // Only show the divider if we have a title. |
| View divider = null; |
| if (mMessage != null || hasCustomPanel) { |
| divider = topPanel.findViewById(R.id.titleDividerNoCustom); |
| } |
| |
| if (divider != null) { |
| divider.setVisibility(View.VISIBLE); |
| } |
| } else { |
| if (contentPanel != null) { |
| final View spacer = contentPanel.findViewById(R.id.textSpacerNoTitle); |
| if (spacer != null) { |
| spacer.setVisibility(View.VISIBLE); |
| } |
| } |
| } |
| |
| // Update scroll indicators as needed. |
| if (!hasCustomPanel) { |
| final View content = mScrollView; |
| if (content != null) { |
| final int indicators = (hasTopPanel ? View.SCROLL_INDICATOR_TOP : 0) |
| | (hasButtonPanel ? View.SCROLL_INDICATOR_BOTTOM : 0); |
| content.setScrollIndicators(indicators, |
| View.SCROLL_INDICATOR_TOP | View.SCROLL_INDICATOR_BOTTOM); |
| } |
| } |
| |
| final TypedArray a = mContext.obtainStyledAttributes( |
| null, R.styleable.AlertDialog, R.attr.alertDialogStyle, 0); |
| setBackground(a, topPanel, contentPanel, customPanel, buttonPanel, |
| hasTopPanel, hasCustomPanel, hasButtonPanel); |
| a.recycle(); |
| } |
| |
| private boolean requestFocusForContent(View content) { |
| return content != null && content.requestFocus(); |
| } |
| |
| private void requestFocusForDefaultButton() { |
| if (mButtonPositive.getVisibility() == View.VISIBLE) { |
| mButtonPositive.requestFocus(); |
| } else if (mButtonNegative.getVisibility() == View.VISIBLE) { |
| mButtonNegative.requestFocus(); |
| } else if (mButtonNeutral.getVisibility() == View.VISIBLE) { |
| mButtonNeutral.requestFocus(); |
| } |
| } |
| |
| private void setupCustomContent(ViewGroup customPanel) { |
| final View customView; |
| if (mView != null) { |
| customView = mView; |
| } else if (mViewLayoutResId != 0) { |
| final LayoutInflater inflater = LayoutInflater.from(mContext); |
| customView = inflater.inflate(mViewLayoutResId, customPanel, false); |
| } else { |
| customView = null; |
| } |
| |
| final boolean hasCustomView = customView != null; |
| if (!hasCustomView || !canTextInput(customView)) { |
| mWindow.setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM, |
| WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); |
| } |
| |
| if (hasCustomView) { |
| final FrameLayout custom = mWindow.findViewById(R.id.custom); |
| custom.addView(customView, new LayoutParams(MATCH_PARENT, MATCH_PARENT)); |
| |
| if (mViewSpacingSpecified) { |
| custom.setPadding( |
| mViewSpacingLeft, mViewSpacingTop, mViewSpacingRight, mViewSpacingBottom); |
| } |
| } else { |
| customPanel.setVisibility(View.GONE); |
| } |
| } |
| |
| private void setupTitle(ViewGroup topPanel) { |
| mIconView = mWindow.findViewById(R.id.icon); |
| |
| final boolean hasTextTitle = !TextUtils.isEmpty(mTitle); |
| if (hasTextTitle && mShowTitle) { |
| // Display the title if a title is supplied, else hide it. |
| mTitleView = mWindow.findViewById(R.id.alertTitle); |
| mTitleView.setText(mTitle); |
| |
| // Do this last so that if the user has supplied any icons we |
| // use them instead of the default ones. If the user has |
| // specified 0 then make it disappear. |
| if (mIconId != 0) { |
| mIconView.setImageResource(mIconId); |
| } else if (mIcon != null) { |
| mIconView.setImageDrawable(mIcon); |
| } else { |
| // Apply the padding from the icon to ensure the title is |
| // aligned correctly. |
| mTitleView.setPadding(mIconView.getPaddingLeft(), |
| mIconView.getPaddingTop(), |
| mIconView.getPaddingRight(), |
| mIconView.getPaddingBottom()); |
| mIconView.setVisibility(View.GONE); |
| } |
| } else { |
| // Hide the title template |
| final View titleTemplate = mWindow.findViewById(R.id.title_template); |
| titleTemplate.setVisibility(View.GONE); |
| mIconView.setVisibility(View.GONE); |
| topPanel.setVisibility(View.GONE); |
| } |
| } |
| |
| private void setupContent(ViewGroup contentPanel) { |
| mScrollView = contentPanel.findViewById(R.id.scrollView); |
| mScrollView.setFocusable(false); |
| |
| // Special case for users that only want to display a String |
| mMessageView = contentPanel.findViewById(R.id.message); |
| if (mMessageView == null) { |
| return; |
| } |
| |
| mMessageView.setVisibility(View.GONE); |
| mScrollView.removeView(mMessageView); |
| |
| contentPanel.setVisibility(View.GONE); |
| } |
| |
| private void setupButtons(ViewGroup buttonPanel) { |
| int BIT_BUTTON_POSITIVE = 1; |
| int BIT_BUTTON_NEGATIVE = 2; |
| int BIT_BUTTON_NEUTRAL = 4; |
| int whichButtons = 0; |
| mButtonPositive = buttonPanel.findViewById(R.id.button1); |
| mButtonPositive.setOnClickListener(mButtonHandler); |
| |
| if (TextUtils.isEmpty(mButtonPositiveText)) { |
| mButtonPositive.setVisibility(View.GONE); |
| } else { |
| mButtonPositive.setText(mButtonPositiveText); |
| mButtonPositive.setVisibility(View.VISIBLE); |
| whichButtons = whichButtons | BIT_BUTTON_POSITIVE; |
| } |
| |
| mButtonNegative = buttonPanel.findViewById(R.id.button2); |
| mButtonNegative.setOnClickListener(mButtonHandler); |
| |
| if (TextUtils.isEmpty(mButtonNegativeText)) { |
| mButtonNegative.setVisibility(View.GONE); |
| } else { |
| mButtonNegative.setText(mButtonNegativeText); |
| mButtonNegative.setVisibility(View.VISIBLE); |
| |
| whichButtons = whichButtons | BIT_BUTTON_NEGATIVE; |
| } |
| |
| mButtonNeutral = buttonPanel.findViewById(R.id.button3); |
| mButtonNeutral.setOnClickListener(mButtonHandler); |
| |
| if (TextUtils.isEmpty(mButtonNeutralText)) { |
| mButtonNeutral.setVisibility(View.GONE); |
| } else { |
| mButtonNeutral.setText(mButtonNeutralText); |
| mButtonNeutral.setVisibility(View.VISIBLE); |
| |
| whichButtons = whichButtons | BIT_BUTTON_NEUTRAL; |
| } |
| |
| final boolean hasButtons = whichButtons != 0; |
| if (!hasButtons) { |
| buttonPanel.setVisibility(View.GONE); |
| } |
| } |
| |
| private void setBackground(TypedArray a, View topPanel, View contentPanel, View customPanel, |
| View buttonPanel, boolean hasTitle, boolean hasCustomView, boolean hasButtons) { |
| int fullDark = 0; |
| int topDark = 0; |
| int centerDark = 0; |
| int bottomDark = 0; |
| int fullBright = 0; |
| int topBright = 0; |
| int centerBright = 0; |
| int bottomBright = 0; |
| int bottomMedium = 0; |
| |
| topBright = a.getResourceId(R.styleable.AlertDialog_topBright, topBright); |
| topDark = a.getResourceId(R.styleable.AlertDialog_topDark, topDark); |
| centerBright = a.getResourceId(R.styleable.AlertDialog_centerBright, centerBright); |
| centerDark = a.getResourceId(R.styleable.AlertDialog_centerDark, centerDark); |
| |
| /* We now set the background of all of the sections of the alert. |
| * First collect together each section that is being displayed along |
| * with whether it is on a light or dark background, then run through |
| * them setting their backgrounds. This is complicated because we need |
| * to correctly use the full, top, middle, and bottom graphics depending |
| * on how many views they are and where they appear. |
| */ |
| |
| final View[] views = new View[4]; |
| final boolean[] light = new boolean[4]; |
| View lastView = null; |
| boolean lastLight = false; |
| |
| int pos = 0; |
| if (hasTitle) { |
| views[pos] = topPanel; |
| light[pos] = false; |
| pos++; |
| } |
| |
| /* The contentPanel displays either a custom text message or |
| * a ListView. If it's text we should use the dark background |
| * for ListView we should use the light background. PIA does not use |
| * a list view. Hence, we set it to use dark background. If neither |
| * are there the contentPanel will be hidden so set it as null. |
| */ |
| views[pos] = contentPanel.getVisibility() == View.GONE ? null : contentPanel; |
| light[pos] = false; |
| pos++; |
| |
| if (hasCustomView) { |
| views[pos] = customPanel; |
| light[pos] = false; |
| pos++; |
| } |
| |
| if (hasButtons) { |
| views[pos] = buttonPanel; |
| light[pos] = true; |
| } |
| |
| boolean setView = false; |
| for (pos = 0; pos < views.length; pos++) { |
| final View v = views[pos]; |
| if (v == null) { |
| continue; |
| } |
| |
| if (lastView != null) { |
| if (!setView) { |
| lastView.setBackgroundResource(lastLight ? topBright : topDark); |
| } else { |
| lastView.setBackgroundResource(lastLight ? centerBright : centerDark); |
| } |
| setView = true; |
| } |
| |
| lastView = v; |
| lastLight = light[pos]; |
| } |
| |
| if (lastView != null) { |
| if (setView) { |
| bottomBright = a.getResourceId(R.styleable.AlertDialog_bottomBright, bottomBright); |
| bottomMedium = a.getResourceId(R.styleable.AlertDialog_bottomMedium, bottomMedium); |
| bottomDark = a.getResourceId(R.styleable.AlertDialog_bottomDark, bottomDark); |
| |
| // ListViews will use the Bright background, but buttons use the |
| // Medium background. |
| lastView.setBackgroundResource( |
| lastLight ? (hasButtons ? bottomMedium : bottomBright) : bottomDark); |
| } else { |
| fullBright = a.getResourceId(R.styleable.AlertDialog_fullBright, fullBright); |
| fullDark = a.getResourceId(R.styleable.AlertDialog_fullDark, fullDark); |
| |
| lastView.setBackgroundResource(lastLight ? fullBright : fullDark); |
| } |
| } |
| } |
| } |
