Can create conversations

app/src/main/java/org/communiquons/android/comunic/client/data/conversations/ConversationsListHelper.java

@@ -183,6 +183,43 @@ public class ConversationsListHelper {
         return true;
     }
 
+    /**
+     * Create a new conversation
+     *
+     * @param name The name of the conversation
+     * @param follow True to make the user follow the conversation
+     * @param members The members of the conversation
+     * @return The ID of the created conversation / null in case of failure
+     */
+    @Nullable
+    public Integer create(String name, boolean follow, ArrayList<Integer> members){
+
+        //Turn the list of members into a string
+        String members_str = "";
+        for(int id : members){
+            members_str += id + ",";
+        }
+
+        //Make an API request
+        APIRequestParameters params = new APIRequestParameters(mContext, "conversations/create");
+        params.addParameter("name", name.equals("") ? "false" : name);
+        params.addParameter("follow", follow ? "true" : "false");
+        params.addParameter("users", members_str);
+
+        //Perform the request
+        try {
+            APIResponse response = new APIRequest().exec(params);
+
+            //Get conversation ID
+            JSONObject obj = response.getJSONObject();
+            return obj.getInt("conversationID");
+
+        } catch (Exception e){
+            e.printStackTrace();
+            return null;
+        }
+    }
+
     /**
      * Get online (download) the list of all the conversations
      *

app/src/main/java/org/communiquons/android/comunic/client/fragments/UpdateConversationFragment.java

@@ -24,6 +24,7 @@ import org.communiquons.android.comunic.client.data.DatabaseHelper;
 import org.communiquons.android.comunic.client.data.UsersInfo.GetUsersHelper;
 import org.communiquons.android.comunic.client.data.UsersInfo.UserInfo;
 import org.communiquons.android.comunic.client.data.UsersInfo.UsersAsysncInfoAdapter;
+import org.communiquons.android.comunic.client.data.conversations.ConversationsListHelper;
 
 import java.util.ArrayList;
 
@@ -96,6 +97,16 @@ public class UpdateConversationFragment extends Fragment {
      */
     private GetUsersHelper usersHelper;
 
+    /**
+     * Conversations list helper
+     */
+    private ConversationsListHelper convListHelper;
+
+    /**
+     * Conversation opener
+     */
+    private ConversationsListHelper.openConversationListener convOpener;
+
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -105,6 +116,17 @@ public class UpdateConversationFragment extends Fragment {
 
         //Get User helper
         usersHelper = new GetUsersHelper(getActivity(), dbHelper);
+
+        //Get conversation list helper
+        convListHelper = new ConversationsListHelper(getActivity(), dbHelper);
+
+        //Get conversation opener
+        try {
+            convOpener = (ConversationsListHelper.openConversationListener) getActivity();
+        } catch (ClassCastException e){
+            throw new RuntimeException(getActivity().getClass().getName() + " must implement the" +
+                    " ConversationsListHelper.openConversationListener interface !");
+        }
     }
 
     @Nullable
@@ -133,6 +155,14 @@ public class UpdateConversationFragment extends Fragment {
             }
         });
 
+        //Make submit button lives
+        submitButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                submit_form();
+            }
+        });
+
         //Initialize the form
         init_form();
 
@@ -261,6 +291,64 @@ public class UpdateConversationFragment extends Fragment {
         membersAdapter.notifyDataSetChanged();
     }
 
+    /**
+     * Submit creation form
+     */
+    private void submit_form(){
+
+        //Check there is at least on member to the conversation
+        if(membersID.size() == 0){
+            Toast.makeText(getActivity(), R.string.err_conversation_need_members,
+                    Toast.LENGTH_SHORT).show();
+        }
+
+        //Get the values
+        final String name = ""+nameView.getText();
+        final boolean following = followCheckbox.isChecked();
+
+        //Block the form
+        set_form_blocked(true);
+        set_progressbar_visibility(true);
+
+        //Create the task in the background
+        new AsyncTask<Void, Void, Integer>(){
+
+            @Override
+            protected Integer doInBackground(Void... params) {
+                return convListHelper.create(name, following, membersID);
+            }
+
+            @Override
+            protected void onPostExecute(Integer integer) {
+                if(getActivity() != null)
+                    creationCallback(integer);
+            }
+        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+    }
+
+    /**
+     * This method is called once the conversation has been created (or not)
+     *
+     * @param convID The ID of the target conversation
+     */
+    private void creationCallback(@Nullable Integer convID){
+
+        //Check for errors
+        if(convID == null){
+            Toast.makeText(getActivity(), R.string.err_conversation_create,
+                    Toast.LENGTH_SHORT).show();
+
+            //Release form
+            set_form_blocked(false);
+            set_progressbar_visibility(false);
+
+            return;
+        }
+
+        //Open conversation
+        convOpener.openConversation(convID);
+    }
+
     /**
      * Update progressbar visibility
      *
@@ -269,4 +357,16 @@ public class UpdateConversationFragment extends Fragment {
     private void set_progressbar_visibility(boolean visible){
         progressBar.setVisibility(visible ? View.VISIBLE : View.GONE);
     }
+
+    /**
+     * Make the fields of the form read only or read and write
+     *
+     * @param blocked Specify whether the fields should be blocked or not
+     */
+    private void set_form_blocked(boolean blocked){
+        nameView.setEnabled(!blocked);
+        submitButton.setEnabled(!blocked);
+        addMember.setEnabled(!blocked);
+        followCheckbox.setEnabled(!blocked);
+    }
 }

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

@@ -46,7 +46,8 @@
         android:id="@+id/fragment_update_conversation_follow"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/fragment_update_conversation_follow"/>
+        android:text="@string/fragment_update_conversation_follow"
+        android:checked="true" /> <!-- Checked by default -->
 
     <!-- Create the conversation -->
     <Button

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

@@ -84,4 +84,6 @@
     <string name="err_search_user">Could not search user !</string>
     <string name="err_add_member_double">This user is already a member of the conversation!</string>
     <string name="err_get_users_info">Could not get information about users !</string>
+    <string name="err_conversation_need_members">Please add at least one member to the conversation !</string>
+    <string name="err_conversation_create">Could not create conversation !</string>
 </resources>