Suggest title when submitting link post.

app/build.gradle

@@ -173,6 +173,8 @@ dependencies {
     implementation 'net.lingala.zip4j:zip4j:2.7.0'
     implementation 'org.apache.commons:commons-io:1.3.2'
 
+    implementation 'com.github.razir.progressbutton:progressbutton:2.1.0'
+
 
 /**** Builds and flavors ****/
     // debugImplementation because LeakCanary should only run in debug builds.

app/src/main/java/ml/docilealligator/infinityforreddit/activities/PostLinkActivity.java

@@ -13,6 +13,7 @@ import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -24,6 +25,7 @@ import com.bumptech.glide.Glide;
 import com.bumptech.glide.RequestManager;
 import com.bumptech.glide.request.RequestOptions;
 import com.google.android.material.appbar.AppBarLayout;
+import com.google.android.material.button.MaterialButton;
 import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.snackbar.Snackbar;
 import com.libRG.CustomTextView;
@@ -43,6 +45,7 @@ import ml.docilealligator.infinityforreddit.Flair;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+import ml.docilealligator.infinityforreddit.apis.TitleSuggestion;
 import ml.docilealligator.infinityforreddit.asynctasks.LoadSubredditIcon;
 import ml.docilealligator.infinityforreddit.bottomsheetfragments.FlairBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
@@ -52,7 +55,11 @@ import ml.docilealligator.infinityforreddit.services.SubmitPostService;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
 import pl.droidsonroids.gif.GifImageView;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
 import retrofit2.Retrofit;
+import retrofit2.converter.scalars.ScalarsConverterFactory;
 
 public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFragment.FlairSelectionCallback {
 
@@ -97,6 +104,8 @@ public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFr
     CustomTextView nsfwTextView;
     @BindView(R.id.post_title_edit_text_post_link_activity)
     EditText titleEditText;
+    @BindView(R.id.suggest_title_button_post_link_activity)
+    MaterialButton suggestTitleButton;
     @BindView(R.id.post_link_edit_text_post_link_activity)
     EditText linkEditText;
     @Inject
@@ -300,6 +309,32 @@ public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFr
                 isNSFW = false;
             }
         });
+
+        suggestTitleButton.setOnClickListener(view -> {
+            Toast.makeText(this, R.string.please_wait, Toast.LENGTH_SHORT).show();
+            String url = linkEditText.getText().toString().trim();
+            if (!url.startsWith("https://") || !url.startsWith("http://")) {
+                url = "https://" + url;
+            }
+            new Retrofit.Builder()
+                    .baseUrl("http://localhost/")
+                    .addConverterFactory(ScalarsConverterFactory.create())
+                    .build().create(TitleSuggestion.class).getHtml(url).enqueue(new Callback<String>() {
+                @Override
+                public void onResponse(@NonNull Call<String> call, @NonNull Response<String> response) {
+                    if (response.isSuccessful()) {
+                        titleEditText.setText(response.body().substring(response.body().indexOf("<title>") + 7, response.body().indexOf("</title>")));
+                    } else {
+                        Toast.makeText(PostLinkActivity.this, R.string.suggest_title_failed, Toast.LENGTH_SHORT).show();
+                    }
+                }
+
+                @Override
+                public void onFailure(@NonNull Call<String> call, @NonNull Throwable t) {
+                    Toast.makeText(PostLinkActivity.this, R.string.suggest_title_failed, Toast.LENGTH_SHORT).show();
+                }
+            });
+        });
     }
 
     @Override
@@ -336,6 +371,8 @@ public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFr
         nsfwTextView.setTextColor(primaryTextColor);
         titleEditText.setTextColor(primaryTextColor);
         titleEditText.setHintTextColor(secondaryTextColor);
+        suggestTitleButton.setBackgroundColor(mCustomThemeWrapper.getColorPrimaryLightTheme());
+        suggestTitleButton.setTextColor(mCustomThemeWrapper.getButtonTextColor());
         linkEditText.setTextColor(primaryTextColor);
         linkEditText.setHintTextColor(secondaryTextColor);
     }
@@ -386,8 +423,8 @@ public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFr
 
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
-        switch (item.getItemId()) {
+        int itemId = item.getItemId();
-            case android.R.id.home:
+        if (itemId == android.R.id.home) {
             if (isPosting) {
                 promptAlertDialog(R.string.exit_when_submit, R.string.exit_when_submit_post_detail);
                 return true;
@@ -399,7 +436,7 @@ public class PostLinkActivity extends BaseActivity implements FlairBottomSheetFr
             }
             finish();
             return true;
-            case R.id.action_send_post_link_activity:
+        } else if (itemId == R.id.action_send_post_link_activity) {
             if (!subredditSelected) {
                 Snackbar.make(coordinatorLayout, R.string.select_a_subreddit, Snackbar.LENGTH_SHORT).show();
                 return true;

app/src/main/java/ml/docilealligator/infinityforreddit/apis/TitleSuggestion.java

@@ -0,0 +1,10 @@
+package ml.docilealligator.infinityforreddit.apis;
+
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Url;
+
+public interface TitleSuggestion {
+    @GET()
+    Call<String> getHtml(@Url String url);
+}

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

@@ -132,10 +132,18 @@
                 android:layout_width="match_parent"
                 android:layout_height="1dp" />
 
-            <EditText
+            <LinearLayout
-                android:id="@+id/post_title_edit_text_post_link_activity"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
+                android:paddingStart="0dp"
+                android:paddingEnd="16dp">
+
+                <EditText
+                    android:id="@+id/post_title_edit_text_post_link_activity"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:layout_gravity="center_vertical"
                     android:background="#00000000"
                     android:gravity="top"
                     android:hint="@string/post_title_hint"
@@ -145,6 +153,15 @@
                     android:textSize="?attr/title_font_18"
                     android:fontFamily="?attr/title_font_family" />
 
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/suggest_title_button_post_link_activity"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center_vertical"
+                    android:text="@string/suggest_title" />
+
+            </LinearLayout>
+
             <View
                 android:id="@+id/divider_3_post_link_activity"
                 android:layout_width="match_parent"

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

@@ -1091,4 +1091,7 @@
     <string name="contain_flair">Contain this flair</string>
     <string name="exclude_domain">Exclude Domain</string>
 
+    <string name="suggest_title">Suggest Title</string>
+    <string name="suggest_title_failed">Failed to suggest a title</string>
+
 </resources>