[QrCode Android] Add QR code sharing dialog.

In this CL create a simple dialog with a close button. The dialog also
displays Share/Scan tabs but no functionality is implemented for those.

screenshot:
https://screenshot.googleplex.com/JHExGzx6ds6.png

Bug: 993920
Change-Id: I056c8397d640092ac7c3aa56e3d0a983a9551cf0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1869884
Commit-Queue: Gayane Petrosyan <gayane@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#709243}

chrome/android/BUILD.gn

@@ -282,6 +282,7 @@ android_library("chrome_java") {
     "//chrome/browser/android/thin_webview:java",
     "//chrome/browser/download/android:java",
     "//chrome/browser/image_fetcher:java",
+    "//chrome/browser/share/android:java_resources",
     "//chrome/browser/ui/android/styles:java",
     "//chrome/browser/ui/android/widget:java",
     "//chrome/browser/util/android:java",

chrome/android/java/strings/android_chrome_strings.grd

@@ -3989,10 +3989,19 @@ The site does NOT gain access to the camera. The camera images are only visible
       </message>
 
       <!-- QR Code -->
-      <message name="IDS_QR_CODE_SHARE_ICON_LABEL" desc="Icon label for sharing qith QR Code activity.">
+      <message name="IDS_QR_CODE_SHARE_ICON_LABEL" desc="Icon label for sharing with QR Code activity.">
         QR Code
       </message>
 
+      <message name="IDS_QR_CODE_SHARE_TAB_LABEL" desc="Share tab label for QR Code sharing activity."
+        meaning="Sharing QR code">
+        Share
+      </message>
+
+      <message name="IDS_QR_CODE_SCAN_TAB_LABEL" desc="Scan tab label for QR Code sharing activity.">
+        Scan
+      </message>
+
       <!-- Chime DFM module strings -->
       <message name="IDS_CHIME_MODULE_TITLE" desc="Text shown when the chime module is referenced in install start, success, failure UI (e.g. in IDS_MODULE_INSTALL_START_TEXT, which will expand to 'Installing Google Notifications Platform for Chrome…').">
         Google Notifications Platform

chrome/android/java/strings/android_chrome_strings_grd/IDS_QR_CODE_SCAN_TAB_LABEL.png.sha1

+401b9464b0c27d7269fd41da18be10eacbef5349
\ No newline at end of file

chrome/android/java/strings/android_chrome_strings_grd/IDS_QR_CODE_SHARE_TAB_LABEL.png.sha1

+eb8001ee41fe8c85bf9fd3e84e49f9a3747758d9
\ No newline at end of file

chrome/browser/share/android/BUILD.gn

+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/android/rules.gni")
+
+android_resources("java_resources") {
+  # TODO(gayane): remove dependency on chrome/android:chrome_app_java_resources
+  # once strings and common styles move out of chrome/android
+  deps = [
+    "//chrome/android:chrome_app_java_resources",
+  ]
+  resource_dirs = [ "java/res" ]
+  custom_package = "org.chromium.chrome.browser.share.qrcode"
+}

chrome/browser/share/android/java/res/layout/qrcode_dialog.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2019 The Chromium Authors. All rights reserved.
+     Use of this source code is governed by a BSD-style license that can be
+     found in the LICENSE file. -->
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <android.support.design.widget.TabLayout
+        android:id="@+id/tab_layout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:tabGravity="center"
+        app:tabPaddingEnd="20dp"
+        app:tabPaddingStart="20dp"
+        app:tabIndicatorFullWidth="true"
+        style="@style/TabLayoutStyle" >
+
+        <android.support.design.widget.TabItem
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/qr_code_share_tab_label" />
+
+        <android.support.design.widget.TabItem
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/qr_code_scan_tab_label" />
+    </android.support.design.widget.TabLayout>
+
+    <org.chromium.ui.widget.ChromeImageButton
+        android:id="@+id/close_button"
+        style="@style/ToolbarButton"
+        android:src="@drawable/btn_close"
+        android:contentDescription="@string/close"
+        app:tint="@color/standard_mode_tint" />
+
+    <ImageView
+        android:id="@+id/tab_line"
+        android:layout_width="match_parent"
+        style="@style/TabBarShadow"
+        android:layout_below="@+id/tab_layout"
+        android:importantForAccessibility="no"/>
+
+    <android.support.v4.view.ViewPager
+        android:id="@+id/qrcode_view_pager"
+        android:layout_width="match_parent"
+        android:layout_height="fill_parent"
+        android:layout_below="@id/tab_line"/>
+</RelativeLayout>
\ No newline at end of file

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeCoordinator.java

+// Copyright 2019 The Chromium Authors. All rights reserved.
+// 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.share.qrcode;
+
+import android.content.Context;
+
+/**
+ * Creates the QrCodeDialog.
+ */
+public class QrCodeCoordinator {
+    QrCodeDialog mDialog;
+
+    QrCodeCoordinator(Context context) {
+        mDialog = new QrCodeDialog(context);
+    }
+
+    public void show() {
+        mDialog.show();
+    }
+}

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeDialog.java

+// Copyright 2019 The Chromium Authors. All rights reserved.
+// 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.share.qrcode;
+
+import android.content.Context;
+import android.support.v7.app.AlertDialog;
+import android.view.LayoutInflater;
+import android.view.View;
+
+import org.chromium.chrome.R;
+import org.chromium.ui.widget.ChromeImageButton;
+
+/**
+ * QrCodeDialog is the main view for QR code sharing.
+ */
+public class QrCodeDialog extends AlertDialog {
+    /**
+     * The QrCodeDialog constructor.
+     * @param context The context to use.
+     */
+    public QrCodeDialog(Context context) {
+        super(context, R.style.Theme_Chromium_Fullscreen);
+
+        View dialogView = (View) LayoutInflater.from(context).inflate(
+                org.chromium.chrome.browser.share.qrcode.R.layout.qrcode_dialog, null);
+        setView(dialogView);
+        ChromeImageButton close_button =
+                (ChromeImageButton) dialogView.findViewById(R.id.close_button);
+        close_button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                cancel();
+            }
+        });
+    }
+}

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeShareActivity.java

@@ -14,7 +14,8 @@ import org.chromium.chrome.browser.share.ShareActivity;
 public class QrCodeShareActivity extends ShareActivity {
     @Override
     protected void handleShareAction(ChromeActivity triggeringActivity) {
-        // TODO(crbug.com/993920): Open QR code share/scan activity.
+        QrCodeCoordinator qrCodeCoordinator = new QrCodeCoordinator(triggeringActivity);
+        qrCodeCoordinator.show();
     }
 
     public static boolean featureIsAvailable() {

chrome/browser/share/android/java_sources.gni

@@ -3,4 +3,8 @@
 # found in the LICENSE file.
 
 # TODO(gayane): This should be a separate build target when circular dependencies are removed.
-share_java_sources = [ "//chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeShareActivity.java" ]
+share_java_sources = [
+  "//chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeCoordinator.java",
+  "//chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeDialog.java",
+  "//chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/qrcode/QrCodeShareActivity.java",
+]