Can open posts PDFs.

app/build.gradle

@@ -22,6 +22,9 @@ android {
             //Connexion to Crash Reporter
             buildConfigField "String", "crash_reporter_url", "\"http://devweb.local/CrashReporterWeb/project/api/v1/push\""
             buildConfigField "String", "crash_reporter_key", "\"KSyqOzkfJasDTxE0wrXYnUPl8dV1veBc\""
+
+            //Connexion to PDF viewer
+            buildConfigField "String", "pdf_view_url", "\"http://devweb.local/pdfviewer/?file=\""
         }
 
         release {

app/src/main/AndroidManifest.xml

@@ -35,9 +35,14 @@
             android:label="@string/activity_searchuser_title" />
 
         <!-- Notifications background refresh service -->
-        <service android:name=".data.services.NotificationsService"
+        <service
+            android:name=".data.services.NotificationsService"
             android:exported="false" />
 
+        <!-- PDF Viewer activity -->
+        <activity
+            android:name=".ui.activities.PDFActivity"
+            android:label="@string/activity_view_pdf_label"/>
     </application>
 
 </manifest>

app/src/main/java/org/communiquons/android/comunic/client/data/enums/PostTypes.java

@@ -24,6 +24,11 @@ public enum PostTypes {
      */
     MOVIE,
 
+    /**
+     * PDF
+     */
+    PDF,
+
     /**
      * Unknown type
      */

app/src/main/java/org/communiquons/android/comunic/client/data/helpers/PostsHelper.java

@@ -367,6 +367,10 @@ public class PostsHelper {
                 post.setType(PostTypes.MOVIE);
                 break;
 
+            case "pdf":
+                post.setType(PostTypes.PDF);
+                break;
+
             default:
                 post.setType(PostTypes.UNKNOWN);
 

app/src/main/java/org/communiquons/android/comunic/client/ui/activities/PDFActivity.java

@@ -0,0 +1,52 @@
+
+package org.communiquons.android.comunic.client.ui.activities;
+
+import android.net.Uri;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.webkit.WebView;
+
+import org.communiquons.android.comunic.client.BuildConfig;
+import org.communiquons.android.comunic.client.R;
+
+
+/**
+ * PDF Activity
+ *
+ * This activity is used to display remote PDF
+ *
+ * @author Pierre HUBERT
+ */
+public class PDFActivity extends AppCompatActivity {
+
+    /**
+     * The WebView of the layout
+     */
+    private WebView mWebView;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_pdf);
+
+        //Get and setup WebView
+        mWebView = (WebView) findViewById(R.id.webview);
+        mWebView.getSettings().setJavaScriptEnabled(true);
+        mWebView.getSettings().setAllowFileAccess(false);
+        mWebView.getSettings().setAllowFileAccessFromFileURLs(false);
+        mWebView.getSettings().setGeolocationEnabled(false);
+
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        //Determine and open appropriate URL
+        Uri data = getIntent().getData();
+        assert data != null;
+
+        String url = BuildConfig.pdf_view_url + data.getQueryParameter("url");
+        mWebView.loadUrl(url);
+    }
+}

app/src/main/java/org/communiquons/android/comunic/client/ui/adapters/PostsAdapter.java

@@ -12,6 +12,7 @@ import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.R;
 import org.communiquons.android.comunic.client.data.helpers.ImageLoadHelper;
@@ -25,6 +26,7 @@ import org.communiquons.android.comunic.client.ui.utils.UiUtils;
 import org.communiquons.android.comunic.client.data.utils.Utilities;
 import org.communiquons.android.comunic.client.ui.views.EditCommentContentView;
 import org.communiquons.android.comunic.client.ui.views.LikeButtonView;
+import org.communiquons.android.comunic.client.ui.views.PDFLinkButtonView;
 import org.communiquons.android.comunic.client.ui.views.WebImageView;
 import org.communiquons.android.comunic.client.ui.views.WebUserAccountImage;
 
@@ -170,6 +172,17 @@ public class PostsAdapter extends ArrayAdapter<Post>{
 
         }
 
+        //Set post file PDF (if any)
+        PDFLinkButtonView pdfLinkButtonView = convertView.findViewById(R.id.btn_pdf_link);
+
+        if(post.getType() != PostTypes.PDF)
+            pdfLinkButtonView.setVisibility(View.GONE);
+        else {
+            pdfLinkButtonView.setVisibility(View.VISIBLE);
+            pdfLinkButtonView.setPDFUrl(post.getFile_path_url());
+        }
+
+
         //Set posts likes
         LikeButtonView likeButtonView = convertView.findViewById(R.id.like_button);
         likeButtonView.setNumberLikes(post.getNumberLike());

app/src/main/java/org/communiquons/android/comunic/client/ui/views/PDFLinkButtonView.java

@@ -0,0 +1,84 @@
+
+package org.communiquons.android.comunic.client.ui.views;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.util.AttributeSet;
+import android.view.View;
+
+import org.communiquons.android.comunic.client.R;
+import org.communiquons.android.comunic.client.ui.activities.PDFActivity;
+import org.communiquons.android.comunic.client.ui.utils.UiUtils;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
+/**
+ * PDF button link widget
+ *
+ * This button is used to offer the user to open a PDF by clicking on it.
+ *
+ * @author Pierre HUBERT
+ */
+public class PDFLinkButtonView extends android.support.v7.widget.AppCompatImageButton implements View.OnClickListener {
+
+    /**
+     * The URL of the target PDF
+     */
+    private String mPDFUrl = null;
+
+    public PDFLinkButtonView(Context context) {
+        super(context);
+        init();
+    }
+
+    public PDFLinkButtonView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public PDFLinkButtonView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    /**
+     * Initialize the button
+     */
+    private void init(){
+
+        //Set the drawable
+        setImageDrawable(UiUtils.getDrawable(getContext(), R.drawable.file_pdf));
+
+        setOnClickListener(this);
+    }
+
+    public String getPDFUrl() {
+        return mPDFUrl;
+    }
+
+    public boolean hasPDFUrl(){
+        return mPDFUrl != null;
+    }
+
+    public void setPDFUrl(String PDFUrl) {
+        this.mPDFUrl = PDFUrl;
+    }
+
+    @Override
+    public void onClick(View view) {
+
+        if(!hasPDFUrl())
+            return;
+
+        try {
+            Intent intent = new Intent(getContext(), PDFActivity.class);
+            intent.setData(Uri.parse("?url=" + URLEncoder.encode(getPDFUrl(), "UTF-8")));
+            getContext().startActivity(intent);
+        } catch (UnsupportedEncodingException e) {
+            throw new RuntimeException(e);
+        }
+
+    }
+}

app/src/main/res/layout/activity_pdf.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.activities.PDFActivity">
+
+    <WebView
+        android:id="@+id/webview"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</android.support.constraint.ConstraintLayout>

app/src/main/res/layout/post_item.xml

@@ -78,6 +78,13 @@
         android:contentDescription="@string/post_image_description"
         android:scaleType="centerInside" />
 
+    <!-- Related PDF (if any) -->
+    <org.communiquons.android.comunic.client.ui.views.PDFLinkButtonView
+        android:id="@+id/btn_pdf_link"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        style="@style/PostPDFButton"/>
+
     <!-- Post content -->
     <TextView
         android:id="@+id/post_content"

app/src/main/res/values/strings.xml

@@ -190,4 +190,5 @@
     <string name="err_get_latest_posts">An error occurred while trying to retrieve the list of latest posts!</string>
     <string name="notice_no_latest_posts">You do not have any latest posts to display here.</string>
     <string name="main_menu_search_user">Search user</string>
+    <string name="activity_view_pdf_label">View PDF</string>
 </resources>

app/src/main/res/values/styles.xml

@@ -69,6 +69,11 @@
         <item name="android:layout_gravity">center_vertical</item>
     </style>
 
+    <!-- Post PDF button (when required) -->
+    <style name="PostPDFButton">
+        <item name="android:layout_gravity">center_horizontal</item>
+    </style>
+
     <!-- Post content -->
     <style name="PostContent">
         <item name="android:textAlignment">center</item>