Add a basic slides pager UI.

Change-Id: I0ef53ca7bbcf5eab2bb131a88c687e302f80dc41

8 files changed, 295 insertions, 2 deletions

diff --git a/android/sdremote/res/drawable/background_grid_slide.xml b/android/sdremote/res/drawable/background_grid_slide.xml
index dc390bb82287..9c76602557d4 100644
--- a/android/sdremote/res/drawable/background_grid_slide.xml
+++ b/android/sdremote/res/drawable/background_grid_slide.xml
@@ -6,7 +6,7 @@
 
     <stroke
         android:width="1dp"
-        android:color="@color/stroke_slide"/>
+        android:color="@color/stroke_grid_slide"/>
 
     <padding
         android:left="1dp"
diff --git a/android/sdremote/res/drawable/background_pager_slide.xml b/android/sdremote/res/drawable/background_pager_slide.xml
new file mode 100644
index 000000000000..c65e4249ef1e
--- /dev/null
+++ b/android/sdremote/res/drawable/background_pager_slide.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid
+        android:color="@android:color/transparent" />
+
+    <stroke
+        android:width="3dp"
+        android:color="@color/stroke_pager_slide"/>
+
+    <padding
+        android:left="0dp"
+        android:top="1dp"
+        android:right="0dp"
+        android:bottom="2dp"/>
+
+</shape>
\ No newline at end of file
diff --git a/android/sdremote/res/layout/fragment_slides_pager.xml b/android/sdremote/res/layout/fragment_slides_pager.xml
new file mode 100644
index 000000000000..14e5cf104e3c
--- /dev/null
+++ b/android/sdremote/res/layout/fragment_slides_pager.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <android.support.v4.view.ViewPager
+        android:id="@+id/pager_slides"
+        android:padding="@dimen/padding_slides_pager"
+        android:layout_centerInParent="true"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/height_slides_pager"/>
+
+</RelativeLayout>
diff --git a/android/sdremote/res/layout/view_pager_slide.xml b/android/sdremote/res/layout/view_pager_slide.xml
new file mode 100644
index 000000000000..0ebb367455e8
--- /dev/null
+++ b/android/sdremote/res/layout/view_pager_slide.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/image_slide_preview"
+    android:background="@drawable/background_pager_slide"
+    android:adjustViewBounds="true"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"/>
\ No newline at end of file
diff --git a/android/sdremote/res/values/colors.xml b/android/sdremote/res/values/colors.xml
index 59281e2192e6..fbc2e441327f 100644
--- a/android/sdremote/res/values/colors.xml
+++ b/android/sdremote/res/values/colors.xml
@@ -5,7 +5,8 @@
     <color name="background_action_bar_divider">#55ffffff</color>
     <color name="background_slide_index">#7f000000</color>
 
-    <color name="stroke_slide">#65000000</color>
+    <color name="stroke_grid_slide">#65000000</color>
+    <color name="stroke_pager_slide">#35000000</color>
 
     <color name="orange">#EE4400</color>
     <color name="grey">#303030</color>
diff --git a/android/sdremote/res/values/dimens.xml b/android/sdremote/res/values/dimens.xml
index b026b3264a55..b73555f52401 100644
--- a/android/sdremote/res/values/dimens.xml
+++ b/android/sdremote/res/values/dimens.xml
@@ -4,6 +4,7 @@
     <dimen name="padding_action_bar_button_drawable">8dp</dimen>
     <dimen name="padding_creation_layout">16dp</dimen>
     <dimen name="padding_slides_grid">4dp</dimen>
+    <dimen name="padding_slides_pager">16dp</dimen>
     <dimen name="padding_slide">4dp</dimen>
 
     <dimen name="padding_horizontal_list_item">8dp</dimen>
@@ -16,6 +17,7 @@
     <dimen name="padding_vertical_edit">8dp</dimen>
 
     <dimen name="margin_vertical_action_bar_divider">12dp</dimen>
+    <dimen name="margin_slide">8dp</dimen>
 
     <dimen name="width_action_bar_divider">0.5dp</dimen>
     <dimen name="width_slides_grid_column">90dp</dimen>
@@ -26,4 +28,6 @@
 
     <dimen name="spacing_slides_grid">4dp</dimen>
 
+    <dimen name="height_slides_pager">250dp</dimen>
+
 </resources>
\ No newline at end of file
diff --git a/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerAdapter.java b/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerAdapter.java
new file mode 100644
index 000000000000..bb7065f57ef4
--- /dev/null
+++ b/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerAdapter.java
@@ -0,0 +1,62 @@
+package org.libreoffice.impressremote;
+
+import android.content.Context;
+import android.support.v4.view.PagerAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import org.libreoffice.impressremote.communication.SlideShow;
+
+public class SlidesPagerAdapter extends PagerAdapter {
+    private final LayoutInflater mLayoutInflater;
+
+    private final SlideShow mSlideShow;
+
+    public SlidesPagerAdapter(Context aContext, SlideShow aSlideShow) {
+        mLayoutInflater = buildLayoutInflater(aContext);
+
+        mSlideShow = aSlideShow;
+    }
+
+    private LayoutInflater buildLayoutInflater(Context aContext) {
+        return (LayoutInflater) aContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+    }
+    @Override
+    public int getCount() {
+        return mSlideShow.getSlidesCount();
+    }
+
+    @Override
+    public Object instantiateItem(ViewGroup aViewGroup, int aPosition) {
+        ImageView aSlideView = (ImageView) getView(aViewGroup);
+
+        aSlideView.setImageBitmap(mSlideShow.getSlidePreview(aPosition));
+
+        aViewGroup.addView(aSlideView);
+
+        return aSlideView;
+    }
+
+    private View getView(ViewGroup aViewGroup) {
+        return mLayoutInflater.inflate(R.layout.view_pager_slide, aViewGroup, false);
+    }
+
+    @Override
+    public void destroyItem(ViewGroup aViewGroup, int aPosition, Object aObject) {
+        View aView = (View) aObject;
+
+        aViewGroup.removeView(aView);
+    }
+
+    @Override
+    public boolean isViewFromObject(View aView, Object aObject) {
+        return aView == aObject;
+    }
+
+    @Override
+    public int getItemPosition(Object aObject) {
+        return POSITION_NONE;
+    }
+}
diff --git a/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerFragment.java b/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerFragment.java
new file mode 100644
index 000000000000..fd1ea3c4c2ae
--- /dev/null
+++ b/android/sdremote/src/org/libreoffice/impressremote/SlidesPagerFragment.java
@@ -0,0 +1,189 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+package org.libreoffice.impressremote;
+
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.ServiceConnection;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.support.v4.content.LocalBroadcastManager;
+import android.support.v4.view.ViewPager;
+import android.util.TypedValue;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.actionbarsherlock.app.SherlockFragment;
+import org.libreoffice.impressremote.communication.CommunicationService;
+
+public class SlidesPagerFragment extends SherlockFragment implements ServiceConnection, ViewPager.OnPageChangeListener {
+    private CommunicationService mCommunicationService;
+    private BroadcastReceiver mIntentsReceiver;
+
+    public static SlidesPagerFragment newInstance() {
+        return new SlidesPagerFragment();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater aInflater, ViewGroup aContainer, Bundle aSavedInstanceState) {
+        return aInflater.inflate(R.layout.fragment_slides_pager, aContainer, false);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        bindService();
+    }
+
+    private void bindService() {
+        Intent aServiceIntent = new Intent(getActivity(), CommunicationService.class);
+
+        getActivity().bindService(aServiceIntent, this, Context.BIND_AUTO_CREATE);
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName aComponentName, IBinder aBinder) {
+        CommunicationService.CBinder aServiceBinder = (CommunicationService.CBinder) aBinder;
+
+        mCommunicationService = aServiceBinder.getService();
+
+        mCommunicationService.getTransmitter().startPresentation();
+
+        setUpSlidesPager();
+    }
+
+    private void setUpSlidesPager() {
+        SlidesPagerAdapter aSlidesPagerAdapter = new SlidesPagerAdapter(getActivity(),
+            mCommunicationService.getSlideShow());
+
+        getSlidesPager().setAdapter(aSlidesPagerAdapter);
+
+        getSlidesPager().setPageMargin(getSlidesMarginInPx());
+
+        getSlidesPager().setOnPageChangeListener(this);
+    }
+
+    private ViewPager getSlidesPager() {
+        return (ViewPager) getView().findViewById(R.id.pager_slides);
+    }
+
+    private int getSlidesMarginInPx() {
+        float aSlideMarginInDp = getResources().getDimension(R.dimen.margin_slide);
+
+        return (int) TypedValue
+            .applyDimension(TypedValue.COMPLEX_UNIT_PX, aSlideMarginInDp,
+                getResources().getDisplayMetrics());
+    }
+
+    @Override
+    public void onPageScrolled(int aPosition, float aPositionOffset, int aPositionOffsetPixels) {
+    }
+
+    @Override
+    public void onPageSelected(int aPosition) {
+        mCommunicationService.getTransmitter().setCurrentSlide(aPosition);
+    }
+
+    @Override
+    public void onPageScrollStateChanged(int aState) {
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName aComponentName) {
+        mCommunicationService = null;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        registerIntentsReceiver();
+    }
+
+    private void registerIntentsReceiver() {
+        mIntentsReceiver = new IntentsReceiver(this);
+        IntentFilter aIntentFilter = buildIntentsReceiverFilter();
+
+        getBroadcastManager().registerReceiver(mIntentsReceiver, aIntentFilter);
+    }
+
+    private static final class IntentsReceiver extends BroadcastReceiver {
+        private final SlidesPagerFragment mSlidesGridFragment;
+
+        private IntentsReceiver(SlidesPagerFragment aSlidesGridFragment) {
+            mSlidesGridFragment = aSlidesGridFragment;
+        }
+
+        @Override
+        public void onReceive(Context aContext, Intent aIntent) {
+            if (Intents.Actions.SLIDE_PREVIEW.equals(aIntent.getAction())) {
+                mSlidesGridFragment.refreshSlidesGrid();
+            }
+        }
+    }
+
+    private IntentFilter buildIntentsReceiverFilter() {
+        IntentFilter aIntentFilter = new IntentFilter();
+        aIntentFilter.addAction(Intents.Actions.SLIDE_PREVIEW);
+
+        return aIntentFilter;
+    }
+
+    private LocalBroadcastManager getBroadcastManager() {
+        Context aContext = getActivity().getApplicationContext();
+
+        return LocalBroadcastManager.getInstance(aContext);
+    }
+
+    private void refreshSlidesGrid() {
+        getSlidesPager().getAdapter().notifyDataSetChanged();
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        unregisterIntentsReceiver();
+    }
+
+    private void unregisterIntentsReceiver() {
+        try {
+            getBroadcastManager().unregisterReceiver(mIntentsReceiver);
+        } catch (IllegalArgumentException e) {
+            // Receiver not registered.
+            // Fixed in Honeycomb: Android’s issue #6191.
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        unbindService();
+    }
+
+    private void unbindService() {
+        if (!isServiceBound()) {
+            return;
+        }
+
+        getActivity().unbindService(this);
+    }
+
+    private boolean isServiceBound() {
+        return mCommunicationService != null;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */