[Android] Upstream Modal Dialogs functionality

chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.java

Index: chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.java b/chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.java
new file mode 100644
index 0000000000000000000000000000000000000000..d1acb91d1065f4ee7ab7dcd9946495aa6d23f43a
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/JavascriptAppModalDialog.java
@@ -0,0 +1,247 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.

[joth, 2012/08/24 23:09:56]

2012

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.content.app.AppResource;
+import org.chromium.content.browser.ContentViewCore;
+
+public class JavascriptAppModalDialog {
+    private String mTitle;
+    private String mMessage;
+    private boolean mShouldShowSuppressCheckBox;
+    private int mNativeDialogPointer;
+    private AlertDialog mDialog;
+
+    private JavascriptAppModalDialog(String title, String message,
+                                     boolean shouldShowSuppressCheckBox) {

[joth, 2012/08/24 23:09:56]

nit: wrong indent (through out file)

[Yaron, 2012/08/28 20:26:40]

Done.

+        mTitle = title;
+        mMessage = message;
+        mShouldShowSuppressCheckBox = shouldShowSuppressCheckBox;
+    }
+
+    @CalledByNative
+    public static JavascriptAppModalDialog createAlertDialog(String title, String message,
+            boolean shouldShowSuppressCheckBox) {
+        return new JavascriptAppAlertDialog(title, message, shouldShowSuppressCheckBox);
+    }
+
+    @CalledByNative
+    public static JavascriptAppModalDialog createConfirmDialog(String title, String message,
+            boolean shouldShowSuppressCheckBox) {
+        return new JavascriptAppConfirmDialog(title, message, shouldShowSuppressCheckBox);
+    }
+
+    @CalledByNative
+    public static JavascriptAppModalDialog createBeforeUnloadDialog(String title, String message,
+            boolean isReload, boolean shouldShowSuppressCheckBox) {
+        return new JavascriptAppBeforeUnloadDialog(title, message, isReload,
+                                                   shouldShowSuppressCheckBox);
+    }
+
+    @CalledByNative
+    public static JavascriptAppModalDialog createPromptDialog(String title, String message,
+            boolean shouldShowSuppressCheckBox, String defaultPromptText) {
+        return new JavascriptAppPromptDialog(title, message, shouldShowSuppressCheckBox,
+                                             defaultPromptText);
+    }
+
+    @CalledByNative
+    void showJavascriptAppModalDialog(ContentViewCore contentViewCore, int nativeDialogPointer) {
+        assert contentViewCore != null;
+
+        Context context = contentViewCore.getContext();
+
+        // Cache the native dialog pointer so that we can use it to return the response.
+        mNativeDialogPointer = nativeDialogPointer;
+
+        // TODO(benm): Need to give the embedding app a chance to handle the dialog once this
+        // code is moved into the framework.

[joth, 2012/08/24 23:09:56]

not relevant any more?

[Yaron, 2012/08/28 20:26:40]

Done.

+
+        LayoutInflater inflater =
+                (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+        assert AppResource.LAYOUT_JS_MODAL_DIALOG != 0;
+        ViewGroup dialogLayout = (ViewGroup) inflater.inflate(AppResource.LAYOUT_JS_MODAL_DIALOG,
+                null);
+
+        prepare(dialogLayout);
+
+        mDialog = new AlertDialog.Builder(context)
+            .setView(dialogLayout)
+            .setOnCancelListener(new DialogInterface.OnCancelListener() {
+                @Override
+                public void onCancel(DialogInterface dialog) {
+                    cancel(false);
+                }
+            })
+            .create();
+        mDialog.setCanceledOnTouchOutside(false);
+        mDialog.show();
+    }
+
+    @CalledByNative
+    void dismiss() {
+        mDialog.dismiss();
+    }
+
+    void prepare(final ViewGroup layout) {
+        // Set the title and message.
+        assert AppResource.ID_JS_MODAL_DIALOG_TEXT_TITLE != 0;
+        assert AppResource.ID_JS_MODAL_DIALOG_TEXT_MESSAGE != 0;
+
+        TextView titleView = (TextView) layout.findViewById(
+                AppResource.ID_JS_MODAL_DIALOG_TEXT_TITLE);
+        TextView messageView = (TextView) layout.findViewById(
+                AppResource.ID_JS_MODAL_DIALOG_TEXT_MESSAGE);
+        titleView.setText(mTitle);
+        messageView.setText(mMessage);
+
+        // Setup the OK button.
+        assert AppResource.ID_JS_MODAL_DIALOG_BUTTON_CONFIRM != 0;
+        assert AppResource.ID_JS_MODAL_DIALOG_CHECKBOX_SUPPRESS_DIALOGS != 0;
+
+        Button okButton = (Button) layout.findViewById(
+                AppResource.ID_JS_MODAL_DIALOG_BUTTON_CONFIRM);
+        okButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                boolean suppress = ((CheckBox)layout.findViewById(
+                        AppResource.ID_JS_MODAL_DIALOG_CHECKBOX_SUPPRESS_DIALOGS)).isChecked();
+
+                assert AppResource.ID_JS_MODAL_DIALOG_TEXT_PROMPT != 0;
+                String prompt = ((TextView)layout.findViewById(
+                        AppResource.ID_JS_MODAL_DIALOG_TEXT_PROMPT)).getText().toString();
+
+                confirm(prompt, suppress);
+                mDialog.dismiss();
+            }
+        });
+
+        // Setup the Cancel button.
+        assert AppResource.ID_JS_MODAL_DIALOG_BUTTON_CANCEL != 0;
+
+        Button cancelButton = (Button) layout.findViewById(
+                AppResource.ID_JS_MODAL_DIALOG_BUTTON_CANCEL);
+        cancelButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                boolean suppress = ((CheckBox)layout.findViewById(
+                        AppResource.ID_JS_MODAL_DIALOG_CHECKBOX_SUPPRESS_DIALOGS)).isChecked();
+                cancel(suppress);
+                mDialog.dismiss();
+            }

[joth, 2012/08/24 23:09:56]

AIUI (from reading the webview equiv) an alert dialog should not have a cancel
button?

[Yaron, 2012/08/28 20:26:40]

It doesn't. This is common code shared by all dialogs. If you look at the
JavascriptAppAlertDialog subclass, it calls this  |prepare| and then hides the
cancel button.

+        });
+
+        // Display the checkbox for supressing dialogs if necessary.
+        layout.findViewById(AppResource.ID_JS_MODAL_DIALOG_CHECKBOX_SUPPRESS_DIALOGS).setVisibility(
+                mShouldShowSuppressCheckBox ? View.VISIBLE : View.GONE);
+    }
+
+    public void confirm(String promptResult, boolean suppressDialogs) {
+        nativeDidAcceptAppModalDialog(mNativeDialogPointer, promptResult, suppressDialogs);
+    }
+
+    public void cancel(boolean suppressDialogs) {
+        nativeDidCancelAppModalDialog(mNativeDialogPointer, suppressDialogs);
+    }
+
+    private static class JavascriptAppAlertDialog extends JavascriptAppModalDialog {
+        public JavascriptAppAlertDialog(String title, String message,
+                                        boolean shouldShowSuppressCheckBox) {
+            super(title, message, shouldShowSuppressCheckBox);
+        }
+
+        @Override
+        public void prepare(ViewGroup layout) {
+            super.prepare(layout);
+            layout.findViewById(AppResource.ID_JS_MODAL_DIALOG_BUTTON_CANCEL)
+                    .setVisibility(View.GONE);
+        }
+    }
+
+    private static class JavascriptAppConfirmDialog extends JavascriptAppModalDialog {
+        public JavascriptAppConfirmDialog(String title, String message,
+                                          boolean shouldShowSuppressCheckBox) {
+            super(title, message, shouldShowSuppressCheckBox);
+        }
+
+        @Override
+        public void prepare(ViewGroup layout) {
+            super.prepare(layout);
+        }
+    }
+
+    private static class JavascriptAppBeforeUnloadDialog extends JavascriptAppConfirmDialog {
+        private boolean mIsReload;
+
+        public JavascriptAppBeforeUnloadDialog(String title, String message,
+                boolean isReload, boolean shouldShowSuppressCheckBox) {
+            super(title, message, shouldShowSuppressCheckBox);
+            mIsReload = isReload;
+        }
+
+        @Override
+        public void prepare(ViewGroup layout) {
+            super.prepare(layout);
+
+            // Cancel and confirm button resources are checked in JavascriptAppModalDialog.prepare.
+            assert AppResource.STRING_JS_MODAL_DIALOG_DONT_RELOAD_THIS_PAGE != 0;
+            assert AppResource.STRING_JS_MODAL_DIALOG_LEAVE_THIS_PAGE != 0;
+            assert AppResource.STRING_JS_MODAL_DIALOG_RELOAD_THIS_PAGE != 0;
+            assert AppResource.STRING_JS_MODAL_DIALOG_STAY_ON_THIS_PAGE != 0;
+
+            TextView stayOnThisPage =
+                    (TextView) layout.findViewById(AppResource.ID_JS_MODAL_DIALOG_BUTTON_CANCEL);
+            stayOnThisPage.setText(mIsReload ?
+                    AppResource.STRING_JS_MODAL_DIALOG_DONT_RELOAD_THIS_PAGE :
+                    AppResource.STRING_JS_MODAL_DIALOG_STAY_ON_THIS_PAGE);
+            TextView leaveThisPage =
+                    (TextView) layout.findViewById(AppResource.ID_JS_MODAL_DIALOG_BUTTON_CONFIRM);
+            leaveThisPage.setText(mIsReload ?
+                    AppResource.STRING_JS_MODAL_DIALOG_RELOAD_THIS_PAGE :
+                    AppResource.STRING_JS_MODAL_DIALOG_LEAVE_THIS_PAGE);
+        }
+    }
+
+    private static class JavascriptAppPromptDialog extends JavascriptAppModalDialog {
+        private String mDefaultPromptText;
+
+        public JavascriptAppPromptDialog(String title, String message,
+                boolean shouldShowSuppressCheckBox, String defaultPromptText) {
+            super(title, message, shouldShowSuppressCheckBox);
+            mDefaultPromptText = defaultPromptText;
+        }
+
+        @Override
+        public void prepare(ViewGroup layout) {
+            super.prepare(layout);
+            EditText prompt = (EditText) layout.findViewById(
+                    AppResource.ID_JS_MODAL_DIALOG_TEXT_PROMPT);
+            prompt.setVisibility(View.VISIBLE);
+
+            if (mDefaultPromptText.length() > 0) {
+                prompt.setText(mDefaultPromptText);
+                prompt.selectAll();
+            }
+        }
+    }
+
+    private native void nativeDidAcceptAppModalDialog(int nativeJavascriptAppModalDialogAndroid,
+            String prompt, boolean suppress);
+    private native void nativeDidCancelAppModalDialog(int nativeJavascriptAppModalDialogAndroid,
+            boolean suppress);
+}