mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
511 lines
18 KiB
Java
511 lines
18 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko.prompts;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.mozilla.gecko.GeckoAppShell;
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import org.mozilla.gecko.GeckoEvent;
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import org.mozilla.gecko.R;
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import org.mozilla.gecko.util.ThreadUtils;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.DialogInterface.OnCancelListener;
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import android.content.DialogInterface.OnClickListener;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.text.TextUtils;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.ArrayAdapter;
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import android.widget.CheckedTextView;
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import android.widget.LinearLayout;
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import android.widget.ListView;
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import android.widget.ScrollView;
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import android.widget.TextView;
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import java.util.ArrayList;
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public class Prompt implements OnClickListener, OnCancelListener, OnItemClickListener,
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PromptInput.OnChangeListener {
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private static final String LOGTAG = "GeckoPromptService";
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private String[] mButtons;
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private PromptInput[] mInputs;
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private AlertDialog mDialog;
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private final LayoutInflater mInflater;
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private final Context mContext;
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private PromptCallback mCallback;
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private String mGuid;
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private PromptListAdapter mAdapter;
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private static boolean mInitialized = false;
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private static int mGroupPaddingSize;
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private static int mLeftRightTextWithIconPadding;
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private static int mTopBottomTextWithIconPadding;
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private static int mIconTextPadding;
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private static int mIconSize;
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private static int mInputPaddingSize;
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private static int mMinRowSize;
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public Prompt(Context context, PromptCallback callback) {
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this(context);
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mCallback = callback;
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}
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private Prompt(Context context) {
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mContext = context;
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mInflater = LayoutInflater.from(mContext);
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if (!mInitialized) {
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Resources res = mContext.getResources();
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mGroupPaddingSize = (int) (res.getDimension(R.dimen.prompt_service_group_padding_size));
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mLeftRightTextWithIconPadding = (int) (res.getDimension(R.dimen.prompt_service_left_right_text_with_icon_padding));
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mTopBottomTextWithIconPadding = (int) (res.getDimension(R.dimen.prompt_service_top_bottom_text_with_icon_padding));
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mIconTextPadding = (int) (res.getDimension(R.dimen.prompt_service_icon_text_padding));
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mIconSize = (int) (res.getDimension(R.dimen.prompt_service_icon_size));
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mInputPaddingSize = (int) (res.getDimension(R.dimen.prompt_service_inputs_padding));
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mMinRowSize = (int) (res.getDimension(R.dimen.prompt_service_min_list_item_height));
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mInitialized = true;
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}
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}
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private View applyInputStyle(View view, PromptInput input) {
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// Don't add padding to color picker views
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if (input.canApplyInputStyle()) {
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view.setPadding(mInputPaddingSize, 0, mInputPaddingSize, 0);
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}
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return view;
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}
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public void show(JSONObject message) {
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processMessage(message);
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}
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public void show(String title, String text, PromptListItem[] listItems, int choiceMode) {
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ThreadUtils.assertOnUiThread();
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GeckoAppShell.getLayerView().abortPanning();
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AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
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if (!TextUtils.isEmpty(title)) {
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builder.setTitle(title);
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}
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if (!TextUtils.isEmpty(text)) {
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builder.setMessage(text);
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}
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// Because lists are currently added through the normal Android AlertBuilder interface, they're
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// incompatible with also adding additional input elements to a dialog.
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if (listItems != null && listItems.length > 0) {
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addListItems(builder, listItems, choiceMode);
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} else if (!addInputs(builder)) {
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// If we failed to add any requested input elements, don't show the dialog
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return;
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}
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int length = mButtons == null ? 0 : mButtons.length;
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if (length > 0) {
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builder.setPositiveButton(mButtons[0], this);
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if (length > 1) {
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builder.setNeutralButton(mButtons[1], this);
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if (length > 2) {
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builder.setNegativeButton(mButtons[2], this);
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}
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}
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}
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mDialog = builder.create();
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mDialog.setOnCancelListener(Prompt.this);
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mDialog.show();
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}
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public void setButtons(String[] buttons) {
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mButtons = buttons;
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}
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public void setInputs(PromptInput[] inputs) {
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mInputs = inputs;
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}
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/* Adds to a result value from the lists that can be shown in dialogs.
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* Will set the selected value(s) to the button attribute of the
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* object that's passed in. If this is a multi-select dialog, sets a
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* selected attribute to an array of booleans.
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*/
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private void addListResult(final JSONObject result, int which) {
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if (mAdapter == null) {
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return;
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}
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try {
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JSONArray selected = new JSONArray();
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// If the button has already been filled in
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ArrayList<Integer> selectedItems = mAdapter.getSelected();
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for (Integer item : selectedItems) {
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selected.put(item);
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}
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// If we haven't assigned a button yet, or we assigned it to -1, assign the which
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// parameter to both selected and the button.
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if (!result.has("button") || result.optInt("button") == -1) {
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if (!selectedItems.contains(which)) {
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selected.put(which);
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}
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result.put("button", which);
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}
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result.put("list", selected);
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} catch(JSONException ex) { }
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}
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/* Adds to a result value from the inputs that can be shown in dialogs.
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* Each input will set its own value in the result.
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*/
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private void addInputValues(final JSONObject result) {
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try {
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if (mInputs != null) {
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for (int i = 0; i < mInputs.length; i++) {
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result.put(mInputs[i].getId(), mInputs[i].getValue());
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}
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}
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} catch(JSONException ex) { }
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}
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/* Adds the selected button to a result. This should only be called if there
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* are no lists shown on the dialog, since they also write their results to the button
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* attribute.
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*/
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private void addButtonResult(final JSONObject result, int which) {
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int button = -1;
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switch(which) {
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case DialogInterface.BUTTON_POSITIVE : button = 0; break;
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case DialogInterface.BUTTON_NEUTRAL : button = 1; break;
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case DialogInterface.BUTTON_NEGATIVE : button = 2; break;
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}
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try {
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result.put("button", button);
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} catch(JSONException ex) { }
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}
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@Override
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public void onClick(DialogInterface dialog, int which) {
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ThreadUtils.assertOnUiThread();
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closeDialog(which);
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}
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/* Adds a set of list items to the prompt. This can be used for either context menu type dialogs, checked lists,
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* or multiple selection lists.
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*
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* @param builder
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* The alert builder currently building this dialog.
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* @param listItems
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* The items to add.
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* @param choiceMode
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* One of the ListView.CHOICE_MODE constants to designate whether this list shows checkmarks, radios buttons, or nothing.
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*/
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private void addListItems(AlertDialog.Builder builder, PromptListItem[] listItems, int choiceMode) {
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switch(choiceMode) {
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case ListView.CHOICE_MODE_MULTIPLE_MODAL:
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case ListView.CHOICE_MODE_MULTIPLE:
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addMultiSelectList(builder, listItems);
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break;
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case ListView.CHOICE_MODE_SINGLE:
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addSingleSelectList(builder, listItems);
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break;
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case ListView.CHOICE_MODE_NONE:
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default:
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addMenuList(builder, listItems);
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}
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}
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/* Shows a multi-select list with checkmarks on the side. Android doesn't support using an adapter for
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* multi-choice lists by default so instead we insert our own custom list so that we can do fancy things
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* to the rows like disabling/indenting them.
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*
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* @param builder
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* The alert builder currently building this dialog.
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* @param listItems
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* The items to add.
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*/
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private void addMultiSelectList(AlertDialog.Builder builder, PromptListItem[] listItems) {
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ListView listView = (ListView) mInflater.inflate(R.layout.select_dialog_list, null);
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listView.setOnItemClickListener(this);
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listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
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mAdapter = new PromptListAdapter(mContext, R.layout.select_dialog_multichoice, listItems);
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listView.setAdapter(mAdapter);
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builder.setView(listView);
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}
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/* Shows a single-select list with radio boxes on the side.
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*
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* @param builder
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* the alert builder currently building this dialog.
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* @param listItems
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* The items to add.
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*/
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private void addSingleSelectList(AlertDialog.Builder builder, PromptListItem[] listItems) {
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mAdapter = new PromptListAdapter(mContext, R.layout.select_dialog_singlechoice, listItems);
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builder.setSingleChoiceItems(mAdapter, mAdapter.getSelectedIndex(), new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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closeIfNoButtons(which);
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}
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});
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}
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/* Shows a single-select list.
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*
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* @param builder
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* the alert builder currently building this dialog.
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* @param listItems
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* The items to add.
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*/
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private void addMenuList(AlertDialog.Builder builder, PromptListItem[] listItems) {
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mAdapter = new PromptListAdapter(mContext, android.R.layout.simple_list_item_1, listItems);
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builder.setAdapter(mAdapter, this);
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}
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/* Wraps an input in a linearlayout. We do this so that we can set padding that appears outside the background
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* drawable for the view.
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*/
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private View wrapInput(final PromptInput input) {
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final LinearLayout linearLayout = new LinearLayout(mContext);
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linearLayout.setOrientation(LinearLayout.VERTICAL);
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applyInputStyle(linearLayout, input);
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linearLayout.addView(input.getView(mContext));
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return linearLayout;
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}
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/* Add the requested input elements to the dialog.
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*
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* @param builder
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* the alert builder currently building this dialog.
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* @return
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* return true if the inputs were added successfully. This may fail
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* if the requested input is compatible with this Android verison
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*/
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private boolean addInputs(AlertDialog.Builder builder) {
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int length = mInputs == null ? 0 : mInputs.length;
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if (length == 0) {
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return true;
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}
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try {
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View root = null;
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boolean scrollable = false; // If any of the innuts are scrollable, we won't wrap this in a ScrollView
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if (length == 1) {
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root = wrapInput(mInputs[0]);
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scrollable |= mInputs[0].getScrollable();
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} else if (length > 1) {
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LinearLayout linearLayout = new LinearLayout(mContext);
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linearLayout.setOrientation(LinearLayout.VERTICAL);
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for (int i = 0; i < length; i++) {
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View content = wrapInput(mInputs[i]);
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linearLayout.addView(content);
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scrollable |= mInputs[i].getScrollable();
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}
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root = linearLayout;
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}
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if (scrollable) {
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builder.setView(root);
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} else {
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ScrollView view = new ScrollView(mContext);
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view.addView(root);
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builder.setView(view);
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}
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} catch(Exception ex) {
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Log.e(LOGTAG, "Error showing prompt inputs", ex);
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// We cannot display these input widgets with this sdk version,
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// do not display any dialog and finish the prompt now.
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cancelDialog();
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return false;
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}
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return true;
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}
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/* AdapterView.OnItemClickListener
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* Called when a list item is clicked
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*/
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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ThreadUtils.assertOnUiThread();
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mAdapter.toggleSelected(position);
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// If there are no buttons on this dialog, then we take selecting an item as a sign to close
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// the dialog. Note that means it will be hard to select multiple things in this list, but
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// given there is no way to confirm+close the dialog, it seems reasonable.
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closeIfNoButtons(position);
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}
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private boolean closeIfNoButtons(int selected) {
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ThreadUtils.assertOnUiThread();
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if (mButtons == null || mButtons.length == 0) {
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closeDialog(selected);
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return true;
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}
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return false;
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}
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/* @DialogInterface.OnCancelListener
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* Called when the user hits back to cancel a dialog. The dialog will close itself when this
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* ends. Setup the correct return values here.
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*
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* @param aDialog
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* A dialog interface for the dialog that's being closed.
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*/
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@Override
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public void onCancel(DialogInterface aDialog) {
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ThreadUtils.assertOnUiThread();
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cancelDialog();
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}
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/* Called in situations where we want to cancel the dialog . This can happen if the user hits back,
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* or if the dialog can't be created because of invalid JSON.
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*/
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private void cancelDialog() {
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JSONObject ret = new JSONObject();
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try {
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ret.put("button", -1);
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} catch(Exception ex) { }
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addInputValues(ret);
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finishDialog(ret);
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}
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/* Called any time we're closing the dialog to cleanup and notify listeners that the dialog
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* is closing.
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*/
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private void closeDialog(int which) {
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JSONObject ret = new JSONObject();
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mDialog.dismiss();
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addButtonResult(ret, which);
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addListResult(ret, which);
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addInputValues(ret);
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finishDialog(ret);
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}
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/* Called any time we're closing the dialog to cleanup and notify listeners that the dialog
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* is closing.
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*/
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public void finishDialog(JSONObject aReturn) {
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mInputs = null;
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mButtons = null;
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mDialog = null;
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try {
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aReturn.put("guid", mGuid);
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} catch(JSONException ex) { }
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// poke the Gecko thread in case it's waiting for new events
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GeckoAppShell.sendEventToGecko(GeckoEvent.createNoOpEvent());
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if (mCallback != null) {
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mCallback.onPromptFinished(aReturn.toString());
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}
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mGuid = null;
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}
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/* Handles parsing the initial JSON sent to show dialogs
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*/
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private void processMessage(JSONObject geckoObject) {
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String title = geckoObject.optString("title");
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String text = geckoObject.optString("text");
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mGuid = geckoObject.optString("guid");
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mButtons = getStringArray(geckoObject, "buttons");
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JSONArray inputs = getSafeArray(geckoObject, "inputs");
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mInputs = new PromptInput[inputs.length()];
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for (int i = 0; i < mInputs.length; i++) {
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try {
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mInputs[i] = PromptInput.getInput(inputs.getJSONObject(i));
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mInputs[i].setListener(this);
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} catch(Exception ex) { }
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}
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PromptListItem[] menuitems = PromptListItem.getArray(geckoObject.optJSONArray("listitems"));
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String selected = geckoObject.optString("choiceMode");
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int choiceMode = ListView.CHOICE_MODE_NONE;
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if ("single".equals(selected)) {
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choiceMode = ListView.CHOICE_MODE_SINGLE;
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} else if ("multiple".equals(selected)) {
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choiceMode = ListView.CHOICE_MODE_MULTIPLE;
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}
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show(title, text, menuitems, choiceMode);
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}
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// Called when the prompt inputs on the dialog change
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@Override
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public void onChange(PromptInput input) {
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// If there are no buttons on this dialog, assuming that "changing" an input
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// means something was selected and we can close. This provides a way to tap
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// on a list item and close the dialog automatically.
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closeIfNoButtons(-1);
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}
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private static JSONArray getSafeArray(JSONObject json, String key) {
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try {
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return json.getJSONArray(key);
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} catch (Exception e) {
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return new JSONArray();
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}
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}
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public static String[] getStringArray(JSONObject aObject, String aName) {
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JSONArray items = getSafeArray(aObject, aName);
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int length = items.length();
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String[] list = new String[length];
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for (int i = 0; i < length; i++) {
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try {
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list[i] = items.getString(i);
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} catch(Exception ex) { }
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}
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return list;
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}
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private static boolean[] getBooleanArray(JSONObject aObject, String aName) {
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JSONArray items = new JSONArray();
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try {
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items = aObject.getJSONArray(aName);
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} catch(Exception ex) { return null; }
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int length = items.length();
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boolean[] list = new boolean[length];
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for (int i = 0; i < length; i++) {
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try {
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list[i] = items.getBoolean(i);
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} catch(Exception ex) { }
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}
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return list;
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}
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public interface PromptCallback {
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public void onPromptFinished(String jsonResult);
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}
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}
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