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MIT License
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/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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 //from w ww.ja va2s .co m 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 org.apache.cordova; import org.apache.cordova.CordovaInterface; import org.apache.cordova.LOG; import org.json.JSONArray; import org.json.JSONException; import android.annotation.TargetApi; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.view.Gravity; import android.view.KeyEvent; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.webkit.ConsoleMessage; import android.webkit.JsPromptResult; import android.webkit.JsResult; import android.webkit.ValueCallback; import android.webkit.WebChromeClient; import android.webkit.WebStorage; import android.webkit.WebView; import android.webkit.GeolocationPermissions.Callback; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.RelativeLayout; /** * This class is the WebChromeClient that implements callbacks for our web view. * The kind of callbacks that happen here are on the chrome outside the document, * such as onCreateWindow(), onConsoleMessage(), onProgressChanged(), etc. Related * to but different than CordovaWebViewClient. * * @see <a href="http://developer.android.com/reference/android/webkit/WebChromeClient.html">WebChromeClient</a> * @see <a href="http://developer.android.com/guide/webapps/webview.html">WebView guide</a> * @see CordovaWebViewClient * @see CordovaWebView */ public class CordovaChromeClient extends WebChromeClient { public static final int FILECHOOSER_RESULTCODE = 5173; private static final String LOG_TAG = "CordovaChromeClient"; private String TAG = "CordovaLog"; private long MAX_QUOTA = 100 * 1024 * 1024; protected CordovaInterface cordova; protected CordovaWebView appView; // the video progress view private View mVideoProgressView; // File Chooser public ValueCallback<Uri> mUploadMessage; /** * Constructor. * * @param cordova */ public CordovaChromeClient(CordovaInterface cordova) { this.cordova = cordova; } /** * Constructor. * * @param ctx * @param app */ public CordovaChromeClient(CordovaInterface ctx, CordovaWebView app) { this.cordova = ctx; this.appView = app; } /** * Constructor. * * @param view */ public void setWebView(CordovaWebView view) { this.appView = view; } /** * Tell the client to display a javascript alert dialog. * * @param view * @param url * @param message * @param result */ @Override public boolean onJsAlert(WebView view, String url, String message, final JsResult result) { AlertDialog.Builder dlg = new AlertDialog.Builder(this.cordova.getActivity()); dlg.setMessage(message); dlg.setTitle("Alert"); //Don't let alerts break the back button dlg.setCancelable(true); dlg.setPositiveButton(android.R.string.ok, new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { result.confirm(); } }); dlg.setOnCancelListener( new DialogInterface.OnCancelListener() { public void onCancel(DialogInterface dialog) { result.cancel(); } }); dlg.setOnKeyListener(new DialogInterface.OnKeyListener() { //DO NOTHING public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { result.confirm(); return false; } else return true; } }); dlg.create(); dlg.show(); return true; } /** * Tell the client to display a confirm dialog to the user. * * @param view * @param url * @param message * @param result */ @Override public boolean onJsConfirm(WebView view, String url, String message, final JsResult result) { AlertDialog.Builder dlg = new AlertDialog.Builder(this.cordova.getActivity()); dlg.setMessage(message); dlg.setTitle("Confirm"); dlg.setCancelable(true); dlg.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { result.confirm(); } }); dlg.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { result.cancel(); } }); dlg.setOnCancelListener( new DialogInterface.OnCancelListener() { public void onCancel(DialogInterface dialog) { result.cancel(); } }); dlg.setOnKeyListener(new DialogInterface.OnKeyListener() { //DO NOTHING public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { result.cancel(); return false; } else return true; } }); dlg.create(); dlg.show(); return true; } /** * Tell the client to display a prompt dialog to the user. * If the client returns true, WebView will assume that the client will * handle the prompt dialog and call the appropriate JsPromptResult method. * * Since we are hacking prompts for our own purposes, we should not be using them for * this purpose, perhaps we should hack console.log to do this instead! * * @param view * @param url * @param message * @param defaultValue * @param result */ @Override public boolean onJsPrompt(WebView view, String url, String message, String defaultValue, JsPromptResult result) { // Security check to make sure any requests are coming from the page initially // loaded in webview and not another loaded in an iframe. boolean reqOk = false; if (url.startsWith("file://") || Config.isUrlWhiteListed(url)) { reqOk = true; } // Calling PluginManager.exec() to call a native service using // prompt(this.stringify(args), "gap:"+this.stringify([service, action, callbackId, true])); if (reqOk && defaultValue != null && defaultValue.length() > 3 && defaultValue.substring(0, 4).equals("gap:")) { JSONArray array; try { array = new JSONArray(defaultValue.substring(4)); String service = array.getString(0); String action = array.getString(1); String callbackId = array.getString(2); String r = this.appView.exposedJsApi.exec(service, action, callbackId, message); result.confirm(r == null ? "" : r); } catch (JSONException e) { e.printStackTrace(); return false; } } // Sets the native->JS bridge mode. else if (reqOk && defaultValue != null && defaultValue.equals("gap_bridge_mode:")) { try { this.appView.exposedJsApi.setNativeToJsBridgeMode(Integer.parseInt(message)); result.confirm(""); } catch (NumberFormatException e){ result.confirm(""); e.printStackTrace(); } } // Polling for JavaScript messages else if (reqOk && defaultValue != null && defaultValue.equals("gap_poll:")) { String r = this.appView.exposedJsApi.retrieveJsMessages("1".equals(message)); result.confirm(r == null ? "" : r); } // Do NO-OP so older code doesn't display dialog else if (defaultValue != null && defaultValue.equals("gap_init:")) { result.confirm("OK"); } // Show dialog else { final JsPromptResult res = result; AlertDialog.Builder dlg = new AlertDialog.Builder(this.cordova.getActivity()); dlg.setMessage(message); final EditText input = new EditText(this.cordova.getActivity()); if (defaultValue != null) { input.setText(defaultValue); } dlg.setView(input); dlg.setCancelable(false); dlg.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { String usertext = input.getText().toString(); res.confirm(usertext); } }); dlg.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { res.cancel(); } }); dlg.create(); dlg.show(); } return true; } /** * Handle database quota exceeded notification. */ @Override public void onExceededDatabaseQuota(String url, String databaseIdentifier, long currentQuota, long estimatedSize, long totalUsedQuota, WebStorage.QuotaUpdater quotaUpdater) { LOG.d(TAG, "onExceededDatabaseQuota estimatedSize: %d currentQuota: %d totalUsedQuota: %d", estimatedSize, currentQuota, totalUsedQuota); quotaUpdater.updateQuota(MAX_QUOTA); } // console.log in api level 7: http://developer.android.com/guide/developing/debug-tasks.html // Expect this to not compile in a future Android release! @SuppressWarnings("deprecation") @Override public void onConsoleMessage(String message, int lineNumber, String sourceID) { //This is only for Android 2.1 if(android.os.Build.VERSION.SDK_INT == android.os.Build.VERSION_CODES.ECLAIR_MR1) { LOG.d(TAG, "%s: Line %d : %s", sourceID, lineNumber, message); super.onConsoleMessage(message, lineNumber, sourceID); } } @TargetApi(8) @Override public boolean onConsoleMessage(ConsoleMessage consoleMessage) { if (consoleMessage.message() != null) LOG.d(TAG, "%s: Line %d : %s" , consoleMessage.sourceId() , consoleMessage.lineNumber(), consoleMessage.message()); return super.onConsoleMessage(consoleMessage); } @Override /** * Instructs the client to show a prompt to ask the user to set the Geolocation permission state for the specified origin. * * @param origin * @param callback */ public void onGeolocationPermissionsShowPrompt(String origin, Callback callback) { super.onGeolocationPermissionsShowPrompt(origin, callback); callback.invoke(origin, true, false); } // API level 7 is required for this, see if we could lower this using something else @Override public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) { this.appView.showCustomView(view, callback); } @Override public void onHideCustomView() { this.appView.hideCustomView(); } @Override /** * Ask the host application for a custom progress view to show while * a <video> is loading. * @return View The progress view. */ public View getVideoLoadingProgressView() { if (mVideoProgressView == null) { // Create a new Loading view programmatically. // create the linear layout LinearLayout layout = new LinearLayout(this.appView.getContext()); layout.setOrientation(LinearLayout.VERTICAL); RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT); layout.setLayoutParams(layoutParams); // the proress bar ProgressBar bar = new ProgressBar(this.appView.getContext()); LinearLayout.LayoutParams barLayoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); barLayoutParams.gravity = Gravity.CENTER; bar.setLayoutParams(barLayoutParams); layout.addView(bar); mVideoProgressView = layout; } return mVideoProgressView; } public void openFileChooser(ValueCallback<Uri> uploadMsg) { this.openFileChooser(uploadMsg, "*/*"); } public void openFileChooser( ValueCallback<Uri> uploadMsg, String acceptType ) { this.openFileChooser(uploadMsg, acceptType, null); } public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) { mUploadMessage = uploadMsg; Intent i = new Intent(Intent.ACTION_GET_CONTENT); i.addCategory(Intent.CATEGORY_OPENABLE); i.setType("*/*"); this.cordova.getActivity().startActivityForResult(Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE); } public ValueCallback<Uri> getValueCallback() { return this.mUploadMessage; } }