blimp client : Added a text input feature to blimp client on android

Added a floating edit text along with softkey which would show up
when text input is needed from users.

BUG=585646
NOTRY=true

Review URL: https://codereview.chromium.org/1688433004

Cr-Commit-Position: refs/heads/master@{#377072}

10 files changed, 94 insertions, 4 deletions

diff --git a/blimp/client/BUILD.gn b/blimp/client/BUILD.gn
index 6029cd0..d2ddc2b 100644
--- a/blimp/client/BUILD.gn
+++ b/blimp/client/BUILD.gn
@@ -309,6 +309,7 @@ if (is_android) {
       "app/android/java/src/org/chromium/blimp/BlimpLibraryLoader.java",
       "app/android/java/src/org/chromium/blimp/BlimpRendererActivity.java",
       "app/android/java/src/org/chromium/blimp/BlimpView.java",
+      "app/android/java/src/org/chromium/blimp/input/TextInputFeature.java",
       "app/android/java/src/org/chromium/blimp/session/BlimpClientSession.java",
       "app/android/java/src/org/chromium/blimp/session/TabControlFeature.java",
       "app/android/java/src/org/chromium/blimp/toolbar/Toolbar.java",
diff --git a/blimp/client/app/android/AndroidManifest.xml.jinja2 b/blimp/client/app/android/AndroidManifest.xml.jinja2
index 3256dca..adb5b2f 100644
--- a/blimp/client/app/android/AndroidManifest.xml.jinja2
+++ b/blimp/client/app/android/AndroidManifest.xml.jinja2
@@ -19,6 +19,7 @@
                   android:launchMode="singleTask"
                   android:theme="@android:style/Theme.Holo.Light.NoActionBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
+                  android:windowSoftInputMode="adjustResize"
                   android:hardwareAccelerated="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
diff --git a/blimp/client/app/android/java/res/drawable-hdpi/web_input_background.9.png b/blimp/client/app/android/java/res/drawable-hdpi/web_input_background.9.png
new file mode 100644
index 0000000..21ceba9
--- /dev/null
+++ b/blimp/client/app/android/java/res/drawable-hdpi/web_input_background.9.png
diff --git a/blimp/client/app/android/java/res/drawable-mdpi/web_input_background.9.png b/blimp/client/app/android/java/res/drawable-mdpi/web_input_background.9.png
new file mode 100644
index 0000000..a08335d
--- /dev/null
+++ b/blimp/client/app/android/java/res/drawable-mdpi/web_input_background.9.png
diff --git a/blimp/client/app/android/java/res/drawable-xhdpi/web_input_background.9.png b/blimp/client/app/android/java/res/drawable-xhdpi/web_input_background.9.png
new file mode 100644
index 0000000..58c92c5c
--- /dev/null
+++ b/blimp/client/app/android/java/res/drawable-xhdpi/web_input_background.9.png
diff --git a/blimp/client/app/android/java/res/drawable-xxhdpi/web_input_background.9.png b/blimp/client/app/android/java/res/drawable-xxhdpi/web_input_background.9.png
new file mode 100644
index 0000000..df41f87
--- /dev/null
+++ b/blimp/client/app/android/java/res/drawable-xxhdpi/web_input_background.9.png
diff --git a/blimp/client/app/android/java/res/drawable-xxxhdpi/web_input_background.9.png b/blimp/client/app/android/java/res/drawable-xxxhdpi/web_input_background.9.png
new file mode 100644
index 0000000..92b702f
--- /dev/null
+++ b/blimp/client/app/android/java/res/drawable-xxxhdpi/web_input_background.9.png
diff --git a/blimp/client/app/android/java/res/layout/blimp_main.xml b/blimp/client/app/android/java/res/layout/blimp_main.xml
index a019db2..f814674 100644
--- a/blimp/client/app/android/java/res/layout/blimp_main.xml
+++ b/blimp/client/app/android/java/res/layout/blimp_main.xml
@@ -4,7 +4,7 @@
      found in the LICENSE file. -->
 
 <merge xmlns:android="http://schemas.android.com/apk/res/android">
-    <LinearLayout
+    <RelativeLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="vertical">
@@ -13,6 +13,7 @@
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="56dp"
+            android:layout_alignParentTop="true"
             android:paddingStart="5dp"
             android:orientation="horizontal"
             android:gravity="center"
@@ -41,6 +42,19 @@
         <org.chromium.blimp.BlimpView
             android:id="@+id/renderer"
             android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-    </LinearLayout>
+            android:layout_height="match_parent"
+            android:layout_below="@+id/toolbar"/>
+        <org.chromium.blimp.input.TextInputFeature
+                android:id="@+id/editText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@drawable/web_input_background"
+                android:layout_alignParentBottom="true"
+                android:layout_marginTop="45dp"
+                android:padding="10dp"
+                android:paddingTop="16dp"
+                android:inputType="text|textWebEditText"
+                android:visibility="gone"/>
+
+    </RelativeLayout>
 </merge>
\ No newline at end of file
diff --git a/blimp/client/app/android/java/src/org/chromium/blimp/BlimpRendererActivity.java b/blimp/client/app/android/java/src/org/chromium/blimp/BlimpRendererActivity.java
index 35f8e19..90b5512 100644
--- a/blimp/client/app/android/java/src/org/chromium/blimp/BlimpRendererActivity.java
+++ b/blimp/client/app/android/java/src/org/chromium/blimp/BlimpRendererActivity.java
@@ -13,6 +13,7 @@ import org.chromium.base.library_loader.ProcessInitException;
 import org.chromium.blimp.auth.RetryingTokenSource;
 import org.chromium.blimp.auth.TokenSource;
 import org.chromium.blimp.auth.TokenSourceImpl;
+import org.chromium.blimp.input.TextInputFeature;
 import org.chromium.blimp.session.BlimpClientSession;
 import org.chromium.blimp.session.TabControlFeature;
 import org.chromium.blimp.toolbar.Toolbar;
@@ -25,7 +26,7 @@ import org.chromium.ui.widget.Toast;
 public class BlimpRendererActivity extends Activity
         implements BlimpLibraryLoader.Callback, TokenSource.Callback, BlimpClientSession.Callback {
     private static final int ACCOUNT_CHOOSER_INTENT_REQUEST_CODE = 100;
-    private static final String TAG = "Blimp";
+    private static final String TAG = "BlimpRendererActivity";
 
     /** Provides user authentication tokens that can be used to query for engine assignments.  This
      *  can potentially query GoogleAuthUtil for an OAuth2 authentication token with userinfo.email
@@ -36,6 +37,7 @@ public class BlimpRendererActivity extends Activity
     private Toolbar mToolbar;
     private BlimpClientSession mBlimpClientSession;
     private TabControlFeature mTabControlFeature;
+    private TextInputFeature mTextInputFeature;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -135,6 +137,8 @@ public class BlimpRendererActivity extends Activity
 
         mTabControlFeature = new TabControlFeature(mBlimpClientSession, mBlimpView);
         mToolbar.loadUrl("http://www.google.com/");
+
+        mTextInputFeature = (TextInputFeature) findViewById(R.id.editText);
     }
 
     // TokenSource.Callback implementation.
diff --git a/blimp/client/app/android/java/src/org/chromium/blimp/input/TextInputFeature.java b/blimp/client/app/android/java/src/org/chromium/blimp/input/TextInputFeature.java
new file mode 100644
index 0000000..1d44f95
--- /dev/null
+++ b/blimp/client/app/android/java/src/org/chromium/blimp/input/TextInputFeature.java
@@ -0,0 +1,70 @@
+// Copyright 2016 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.blimp.input;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import org.chromium.base.Log;
+import org.chromium.ui.UiUtils;
+
+/**
+ * A {@link View} that allows users to enter text into a web page.
+ * This is a floating text box which closes when the user hits enter or presses back button.
+ */
+public class TextInputFeature extends EditText {
+    private static final String TAG = "TextInputFeature";
+
+    public TextInputFeature(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setOnEditorActionListener(new TextView.OnEditorActionListener() {
+            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                if (actionId == EditorInfo.IME_ACTION_NEXT
+                        || actionId == EditorInfo.IME_ACTION_DONE) {
+                    sendTextToBrowser(v.getText().toString());
+                    hideIme();
+                    return true;
+                }
+                return false;
+            }
+        });
+    }
+
+    @Override
+    public boolean dispatchKeyEventPreIme(KeyEvent event) {
+        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
+            setVisibility(View.GONE);
+        }
+        return super.dispatchKeyEventPreIme(event);
+    }
+
+    /**
+     *  Brings up the IME along with the edit text above it.
+     */
+    public void showIme() {
+        setVisibility(View.VISIBLE);
+        requestFocus();
+        UiUtils.showKeyboard(this);
+    }
+
+    /**
+     * Hides the edit text along with the IME.
+     */
+    private void hideIme() {
+        setText("");
+        setVisibility(View.GONE);
+        UiUtils.hideKeyboard(this);
+    }
+
+    private void sendTextToBrowser(String text) {
+        Log.d(TAG, "Send to browser : " + text);
+        // TODO(shaktisahu): Send data to server.
+    }
+}