Add Campaign Activity, Fragment and Fetcher

Exposed as a separate launcher icon. Will add more cohesive UI in
the future

Change-Id: I9f15a9ac850d636d72b4892f2b5153f7e2b8ba28

commons/AndroidManifest.xml

@@ -82,6 +82,15 @@
             android:label="@string/title_activity_settings"
             />
         <activity android:name=".AboutActivity" android:label="@string/title_activity_about"/>
+        <activity android:name=".campaigns.CampaignActivity" android:label="Campaigns"
+                android:icon="@drawable/ic_launcher"
+                >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+
         <service android:name=".upload.UploadService" >
         </service>
         <service

commons/res/layout/activity_campaigns.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+    <fragment
+        android:id="@+id/campaignsListFragment"
+        class="org.wikimedia.commons.campaigns.CampaignsListFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        />
+</FrameLayout>

commons/res/layout/fragment_campaigns.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+    <GridView android:id="@+id/campaignsList"
+              android:layout_height="fill_parent"
+              android:layout_width="fill_parent"
+              android:stretchMode="columnWidth"
+              android:columnWidth="240dp"
+              android:numColumns="auto_fit"
+              android:listSelector="@null"
+              android:fadingEdge="none"
+              android:fastScrollEnabled="false"
+            />
+</LinearLayout>

commons/res/layout/layout_campaign_item.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+    <TextView
+        android:id="@+id/campaignItemName"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        />
+</LinearLayout>

commons/src/main/java/org/wikimedia/commons/campaigns/CampaignActivity.java

@@ -0,0 +1,15 @@
+package org.wikimedia.commons.campaigns;
+
+import android.app.Activity;
+import android.os.Bundle;
+import com.actionbarsherlock.app.SherlockFragmentActivity;
+import org.wikimedia.commons.R;
+
+public class CampaignActivity extends SherlockFragmentActivity {
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_campaigns);
+    }
+
+
+}

commons/src/main/java/org/wikimedia/commons/campaigns/CampaignsListAdapter.java

@@ -0,0 +1,54 @@
+package org.wikimedia.commons.campaigns;
+
+import android.app.Activity;
+import android.view.*;
+import android.widget.*;
+import org.wikimedia.commons.R;
+
+import java.util.ArrayList;
+
+public class CampaignsListAdapter extends BaseAdapter {
+    private ArrayList<Campaign> campaigns;
+    private Activity activity;
+
+    public CampaignsListAdapter(Activity activity, ArrayList<Campaign> campaigns) {
+        this.campaigns = campaigns;
+        this.activity = activity;
+    }
+
+    public ArrayList<Campaign> getCampaigns() {
+        return campaigns;
+    }
+
+    public void setCampaigns(ArrayList<Campaign> campaigns) {
+        this.campaigns = campaigns;
+    }
+
+    public int getCount() {
+        if(campaigns == null) {
+            return 0;
+        }
+        return campaigns.size();
+    }
+
+    public Object getItem(int i) {
+        return campaigns.get(i);
+    }
+
+    public long getItemId(int i) {
+        return i;
+    }
+
+    public View getView(int i, View view, ViewGroup viewGroup) {
+        if(view == null) {
+            view = activity.getLayoutInflater().inflate(R.layout.layout_campaign_item, null);
+        }
+
+        TextView campaignName = (TextView)view.findViewById(R.id.campaignItemName);
+
+        Campaign campaign = campaigns.get(i);
+
+        campaignName.setText(campaign.getName());
+        return view;
+    }
+}

commons/src/main/java/org/wikimedia/commons/campaigns/CampaignsListFragment.java

@@ -0,0 +1,39 @@
+package org.wikimedia.commons.campaigns;
+
+import android.os.*;
+import android.view.*;
+import android.widget.*;
+import com.actionbarsherlock.app.SherlockFragment;
+import org.wikimedia.commons.*;
+
+import java.util.*;
+
+public class CampaignsListFragment extends SherlockFragment {
+    private ArrayList<Campaign> campaigns;
+    private CampaignsListAdapter listAdapter;
+    private GridView campaignsListView;
+
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_campaigns, container, false);
+        campaignsListView = (GridView)view.findViewById(R.id.campaignsList);
+        return view;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        listAdapter = new CampaignsListAdapter(getActivity(), campaigns);
+        campaignsListView.setAdapter(listAdapter);
+        Utils.executeAsyncTask(new FetchCampaignsTask(getActivity()){
+            @Override
+            protected void onPostExecute(ArrayList<Campaign> campaigns) {
+                super.onPostExecute(campaigns);
+                CampaignsListFragment.this.campaigns = campaigns;
+                listAdapter.setCampaigns(campaigns);
+                listAdapter.notifyDataSetChanged();
+            }
+        });
+    }
+}

commons/src/main/java/org/wikimedia/commons/campaigns/FetchCampaignsTask.java

@@ -0,0 +1,52 @@
+package org.wikimedia.commons.campaigns;
+
+import android.content.Context;
+import android.os.AsyncTask;
+import android.util.Log;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.mediawiki.api.ApiResult;
+import org.mediawiki.api.MWApi;
+import org.wikimedia.commons.CommonsApplication;
+import org.wikimedia.commons.Utils;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+public class FetchCampaignsTask extends AsyncTask<Void, Void, ArrayList<Campaign>>{
+
+    private Context context;
+    private MWApi api;
+
+    public FetchCampaignsTask(Context context) {
+        this.context = context;
+        this.api = ((CommonsApplication)context.getApplicationContext()).getApi();
+    }
+
+    @Override
+    protected ArrayList<Campaign> doInBackground(Void... voids) {
+        ArrayList<Campaign> campaigns = new ArrayList<Campaign>();
+        ApiResult result;
+        try {
+            result = api.action("query").param("prop", "revisions")
+                    .param("rvprop", "content").param("generator", "allpages")
+                    .param("gapnamespace", 460).param("gaplimit", 500).get(); //FIXME: Actually paginate!
+        } catch (IOException e) {
+            throw new RuntimeException(e); // FIXME: Do something else ;)
+        }
+        ArrayList<ApiResult> pageNodes = result.getNodes("/api/query/pages/page");
+        for(ApiResult pageNode : pageNodes) {
+            Log.d("Commons", Utils.getStringFromDOM(pageNode.getDocument()));
+            String configString = pageNode.getString("revisions/rev");
+            String pageName = pageNode.getString("@title").split(":")[1];
+            JSONObject config;
+            try {
+                config = new JSONObject(configString);
+            } catch (JSONException e) {
+                throw new RuntimeException(e); // NEVER HAPPENS!
+            }
+            campaigns.add(new Campaign(pageName, config));
+        }
+        return campaigns;
+    }
+}