gecko/mobile/android/base/Prompt.java

568 lines
20 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import org.mozilla.gecko.util.GeckoEventResponder;
import org.mozilla.gecko.util.ThreadUtils;
import org.mozilla.gecko.widget.DateTimePicker;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONException;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.text.Html;
import android.text.InputType;
import android.text.TextUtils;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CheckedTextView;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.ScrollView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.TimePicker;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.TimeUnit;
public class Prompt implements OnClickListener, OnCancelListener, OnItemClickListener {
private static final String LOGTAG = "GeckoPromptService";
private String[] mButtons;
private PromptInput[] mInputs;
private boolean[] mSelected;
private AlertDialog mDialog;
private final LayoutInflater mInflater;
private ConcurrentLinkedQueue<String> mPromptQueue;
private final Context mContext;
private PromptCallback mCallback;
private String mGuid;
private static boolean mInitialized = false;
private static int mGroupPaddingSize;
private static int mLeftRightTextWithIconPadding;
private static int mTopBottomTextWithIconPadding;
private static int mIconTextPadding;
private static int mIconSize;
private static int mInputPaddingSize;
private static int mMinRowSize;
public Prompt(Context context, ConcurrentLinkedQueue<String> queue) {
this(context);
mCallback = null;
mPromptQueue = queue;
}
public Prompt(Context context, PromptCallback callback) {
this(context);
mCallback = callback;
mPromptQueue = null;
}
private Prompt(Context context) {
mContext = context;
mInflater = LayoutInflater.from(mContext);
if (!mInitialized) {
Resources res = mContext.getResources();
mGroupPaddingSize = (int) (res.getDimension(R.dimen.prompt_service_group_padding_size));
mLeftRightTextWithIconPadding = (int) (res.getDimension(R.dimen.prompt_service_left_right_text_with_icon_padding));
mTopBottomTextWithIconPadding = (int) (res.getDimension(R.dimen.prompt_service_top_bottom_text_with_icon_padding));
mIconTextPadding = (int) (res.getDimension(R.dimen.prompt_service_icon_text_padding));
mIconSize = (int) (res.getDimension(R.dimen.prompt_service_icon_size));
mInputPaddingSize = (int) (res.getDimension(R.dimen.prompt_service_inputs_padding));
mMinRowSize = (int) (res.getDimension(R.dimen.prompt_service_min_list_item_height));
mInitialized = true;
}
}
private View applyInputStyle(View view) {
view.setPadding(mInputPaddingSize, 0, mInputPaddingSize, 0);
return view;
}
public void show(JSONObject message) {
processMessage(message);
}
public void show(String aTitle, String aText, PromptListItem[] aMenuList, boolean aMultipleSelection) {
ThreadUtils.assertOnUiThread();
GeckoAppShell.getLayerView().abortPanning();
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
if (!TextUtils.isEmpty(aTitle)) {
builder.setTitle(aTitle);
}
if (!TextUtils.isEmpty(aText)) {
builder.setMessage(aText);
}
int length = mInputs == null ? 0 : mInputs.length;
if (aMenuList != null && aMenuList.length > 0) {
int resourceId = android.R.layout.simple_list_item_1;
if (mSelected != null && mSelected.length > 0) {
if (aMultipleSelection) {
resourceId = R.layout.select_dialog_multichoice;
} else {
resourceId = R.layout.select_dialog_singlechoice;
}
}
PromptListAdapter adapter = new PromptListAdapter(mContext, resourceId, aMenuList);
if (mSelected != null && mSelected.length > 0) {
if (aMultipleSelection) {
adapter.listView = (ListView) mInflater.inflate(R.layout.select_dialog_list, null);
adapter.listView.setOnItemClickListener(this);
builder.setInverseBackgroundForced(true);
adapter.listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
adapter.listView.setAdapter(adapter);
builder.setView(adapter.listView);
} else {
int selectedIndex = -1;
for (int i = 0; i < mSelected.length; i++) {
if (mSelected[i]) {
selectedIndex = i;
break;
}
}
mSelected = null;
builder.setSingleChoiceItems(adapter, selectedIndex, this);
}
} else {
builder.setAdapter(adapter, this);
mSelected = null;
}
} else if (length == 1) {
try {
ScrollView view = new ScrollView(mContext);
view.addView(mInputs[0].getView(mContext));
builder.setView(applyInputStyle(view));
} catch(UnsupportedOperationException ex) {
// We cannot display these input widgets with this sdk version,
// do not display any dialog and finish the prompt now.
try {
finishDialog(new JSONObject("{\"button\": -1}"));
} catch(JSONException e) { }
return;
}
} else if (length > 1) {
try {
LinearLayout linearLayout = new LinearLayout(mContext);
linearLayout.setOrientation(LinearLayout.VERTICAL);
for (int i = 0; i < length; i++) {
View content = mInputs[i].getView(mContext);
linearLayout.addView(content);
}
ScrollView view = new ScrollView(mContext);
view.addView(linearLayout);
builder.setView(applyInputStyle(view));
} catch(UnsupportedOperationException ex) {
// We cannot display these input widgets with this sdk version,
// do not display any dialog and finish the prompt now.
try {
finishDialog(new JSONObject("{\"button\": -1}"));
} catch(JSONException e) { }
return;
}
}
length = mButtons == null ? 0 : mButtons.length;
if (length > 0) {
builder.setPositiveButton(mButtons[0], this);
if (length > 1) {
builder.setNeutralButton(mButtons[1], this);
if (length > 2) {
builder.setNegativeButton(mButtons[2], this);
}
}
}
mDialog = builder.create();
mDialog.setOnCancelListener(Prompt.this);
mDialog.show();
}
public void setButtons(String[] buttons) {
mButtons = buttons;
}
public void setInputs(PromptInput[] inputs) {
mInputs = inputs;
}
@Override
public void onClick(DialogInterface aDialog, int aWhich) {
ThreadUtils.assertOnUiThread();
JSONObject ret = new JSONObject();
try {
int button = -1;
ListView list = mDialog.getListView();
if (list != null || mSelected != null) {
button = aWhich;
if (mSelected != null) {
JSONArray selected = new JSONArray();
for (int i = 0; i < mSelected.length; i++) {
selected.put(mSelected[i]);
}
ret.put("button", selected);
} else {
ret.put("button", button);
}
} else {
switch(aWhich) {
case DialogInterface.BUTTON_POSITIVE : button = 0; break;
case DialogInterface.BUTTON_NEUTRAL : button = 1; break;
case DialogInterface.BUTTON_NEGATIVE : button = 2; break;
}
ret.put("button", button);
}
if (mInputs != null) {
for (int i = 0; i < mInputs.length; i++) {
ret.put(mInputs[i].getId(), mInputs[i].getValue());
}
}
} catch(Exception ex) {
Log.i(LOGTAG, "Error building return: " + ex);
}
if (mDialog != null) {
mDialog.dismiss();
}
finishDialog(ret);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ThreadUtils.assertOnUiThread();
mSelected[position] = !mSelected[position];
}
@Override
public void onCancel(DialogInterface aDialog) {
ThreadUtils.assertOnUiThread();
JSONObject ret = new JSONObject();
try {
ret.put("button", -1);
} catch(Exception ex) { }
finishDialog(ret);
}
public void finishDialog(JSONObject aReturn) {
mInputs = null;
mButtons = null;
mDialog = null;
mSelected = null;
try {
aReturn.put("guid", mGuid);
} catch(JSONException ex) { }
if (mPromptQueue != null) {
mPromptQueue.offer(aReturn.toString());
}
// poke the Gecko thread in case it's waiting for new events
GeckoAppShell.sendEventToGecko(GeckoEvent.createNoOpEvent());
if (mCallback != null) {
mCallback.onPromptFinished(aReturn.toString());
}
mGuid = null;
}
private void processMessage(JSONObject geckoObject) {
String title = getSafeString(geckoObject, "title");
String text = getSafeString(geckoObject, "text");
mGuid = getSafeString(geckoObject, "guid");
mButtons = getStringArray(geckoObject, "buttons");
JSONArray inputs = getSafeArray(geckoObject, "inputs");
mInputs = new PromptInput[inputs.length()];
for (int i = 0; i < mInputs.length; i++) {
try {
mInputs[i] = PromptInput.getInput(inputs.getJSONObject(i));
} catch(Exception ex) { }
}
PromptListItem[] menuitems = getListItemArray(geckoObject, "listitems");
mSelected = getBooleanArray(geckoObject, "selected");
boolean multiple = geckoObject.optBoolean("multiple");
show(title, text, menuitems, multiple);
}
private static String getSafeString(JSONObject json, String key) {
try {
return json.getString(key);
} catch (Exception e) {
return "";
}
}
private static JSONArray getSafeArray(JSONObject json, String key) {
try {
return json.getJSONArray(key);
} catch (Exception e) {
return new JSONArray();
}
}
private static boolean getSafeBool(JSONObject json, String key) {
try {
return json.getBoolean(key);
} catch (Exception e) {
return false;
}
}
private static int getSafeInt(JSONObject json, String key ) {
try {
return json.getInt(key);
} catch (Exception e) {
return 0;
}
}
public static String[] getStringArray(JSONObject aObject, String aName) {
JSONArray items = getSafeArray(aObject, aName);
int length = items.length();
String[] list = new String[length];
for (int i = 0; i < length; i++) {
try {
list[i] = items.getString(i);
} catch(Exception ex) { }
}
return list;
}
private static boolean[] getBooleanArray(JSONObject aObject, String aName) {
JSONArray items = new JSONArray();
try {
items = aObject.getJSONArray(aName);
} catch(Exception ex) { return null; }
int length = items.length();
boolean[] list = new boolean[length];
for (int i = 0; i < length; i++) {
try {
list[i] = items.getBoolean(i);
} catch(Exception ex) { }
}
return list;
}
private PromptListItem[] getListItemArray(JSONObject aObject, String aName) {
JSONArray items = getSafeArray(aObject, aName);
int length = items.length();
PromptListItem[] list = new PromptListItem[length];
for (int i = 0; i < length; i++) {
try {
list[i] = new PromptListItem(items.getJSONObject(i));
} catch(Exception ex) { }
}
return list;
}
public static class PromptListItem {
public final String label;
public final boolean isGroup;
public final boolean inGroup;
public final boolean disabled;
public final int id;
public final boolean isParent;
// This member can't be accessible from JS, see bug 733749.
public Drawable icon;
PromptListItem(JSONObject aObject) {
label = getSafeString(aObject, "label");
isGroup = getSafeBool(aObject, "isGroup");
inGroup = getSafeBool(aObject, "inGroup");
disabled = getSafeBool(aObject, "disabled");
id = getSafeInt(aObject, "id");
isParent = getSafeBool(aObject, "isParent");
}
public PromptListItem(String aLabel) {
label = aLabel;
isGroup = false;
inGroup = false;
disabled = false;
id = 0;
isParent = false;
}
}
public interface PromptCallback {
public void onPromptFinished(String jsonResult);
}
public class PromptListAdapter extends ArrayAdapter<PromptListItem> {
private static final int VIEW_TYPE_ITEM = 0;
private static final int VIEW_TYPE_GROUP = 1;
private static final int VIEW_TYPE_COUNT = 2;
public ListView listView;
private int mResourceId = -1;
private Drawable mBlankDrawable = null;
private Drawable mMoreDrawable = null;
PromptListAdapter(Context context, int textViewResourceId, PromptListItem[] objects) {
super(context, textViewResourceId, objects);
mResourceId = textViewResourceId;
}
@Override
public int getItemViewType(int position) {
PromptListItem item = getItem(position);
return (item.isGroup ? VIEW_TYPE_GROUP : VIEW_TYPE_ITEM);
}
@Override
public int getViewTypeCount() {
return VIEW_TYPE_COUNT;
}
private Drawable getMoreDrawable(Resources res) {
if (mMoreDrawable == null) {
mMoreDrawable = res.getDrawable(android.R.drawable.ic_menu_more);
}
return mMoreDrawable;
}
private Drawable getBlankDrawable(Resources res) {
if (mBlankDrawable == null) {
mBlankDrawable = res.getDrawable(R.drawable.blank);
}
return mBlankDrawable;
}
private void maybeUpdateIcon(PromptListItem item, TextView t) {
if (item.icon == null && !item.inGroup && !item.isParent) {
t.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
return;
}
Drawable d = null;
Resources res = mContext.getResources();
// Set the padding between the icon and the text.
t.setCompoundDrawablePadding(mIconTextPadding);
if (item.icon != null) {
// We want the icon to be of a specific size. Some do not
// follow this rule so we have to resize them.
Bitmap bitmap = ((BitmapDrawable) item.icon).getBitmap();
d = new BitmapDrawable(Bitmap.createScaledBitmap(bitmap, mIconSize, mIconSize, true));
} else if (item.inGroup) {
// We don't currently support "indenting" items with icons
d = getBlankDrawable(res);
}
Drawable moreDrawable = null;
if (item.isParent) {
moreDrawable = getMoreDrawable(res);
}
if (d != null || moreDrawable != null) {
t.setCompoundDrawablesWithIntrinsicBounds(d, null, moreDrawable, null);
}
}
private void maybeUpdateCheckedState(int position, PromptListItem item, ViewHolder viewHolder) {
viewHolder.textView.setEnabled(!item.disabled && !item.isGroup);
viewHolder.textView.setClickable(item.isGroup || item.disabled);
if (mSelected == null) {
return;
}
CheckedTextView ct;
try {
ct = (CheckedTextView) viewHolder.textView;
// Apparently just using ct.setChecked(true) doesn't work, so this
// is stolen from the android source code as a way to set the checked
// state of these items
if (listView != null) {
listView.setItemChecked(position, mSelected[position]);
}
} catch (Exception e) {
return;
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
PromptListItem item = getItem(position);
ViewHolder viewHolder = null;
if (convertView == null) {
int resourceId = mResourceId;
if (item.isGroup) {
resourceId = R.layout.list_item_header;
}
convertView = mInflater.inflate(resourceId, null);
convertView.setMinimumHeight(mMinRowSize);
TextView tv = (TextView) convertView.findViewById(android.R.id.text1);
viewHolder = new ViewHolder(tv, tv.getPaddingLeft(), tv.getPaddingRight(),
tv.getPaddingTop(), tv.getPaddingBottom());
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.textView.setText(item.label);
maybeUpdateCheckedState(position, item, viewHolder);
maybeUpdateIcon(item, viewHolder.textView);
return convertView;
}
private class ViewHolder {
public final TextView textView;
public final int paddingLeft;
public final int paddingRight;
public final int paddingTop;
public final int paddingBottom;
ViewHolder(TextView aTextView, int aLeft, int aRight, int aTop, int aBottom) {
textView = aTextView;
paddingLeft = aLeft;
paddingRight = aRight;
paddingTop = aTop;
paddingBottom = aBottom;
}
}
}
}