Improve calculate position of popup suggestion

Author: tranleduy2000

.idea/misc.xml

@@ -25,7 +25,6 @@
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.SubMenu;
-import android.widget.EditText;
 import android.widget.Toast;
 
 import com.duy.ccppcompiler.R;
@@ -61,6 +60,7 @@
 import com.duy.ide.editor.EditorDelegate;
 import com.duy.ide.editor.IEditorDelegate;
 import com.duy.ide.editor.internal.suggestion.DefaultSuggestItem;
+import com.duy.ide.editor.internal.suggestion.Editor;
 import com.jecelyin.common.utils.UIUtils;
 import com.jecelyin.editor.v2.Preferences;
 import com.jecelyin.editor.v2.widget.menu.MenuDef;
@@ -137,13 +137,17 @@ public void onEditorViewCreated(@NonNull IEditorDelegate editorDelegate) {
 
         editorDelegate.setSuggestionProvider(new SuggestionProvider() {
             @Override
-            public ArrayList<SuggestItem> getSuggestions(EditText editor) {
+            public ArrayList<SuggestItem> getSuggestions(Editor editor) {
+                try {
+                    Thread.sleep(100);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
                 ArrayList<SuggestItem> items = new ArrayList<>();
-                items.add(new DefaultSuggestItem("Hello", "Desc", "dd", "s", 0));
-                items.add(new DefaultSuggestItem("Hello", "Desc", "dd", "s", 0));
-                items.add(new DefaultSuggestItem("Hello", "Desc", "dd", "s", 0));
-                items.add(new DefaultSuggestItem("Hello", "Desc", "dd", "s", 0));
-                items.add(new DefaultSuggestItem("Hello", "Desc", "dd", "s", 0));
+                int size = (int) (Math.random() * 10);
+                for (int i = 0; i <= size; i++) {
+                    items.add(new DefaultSuggestItem("toString", "", "int", "s", 0));
+                }
                 return items;
             }
         });

app/src/main/java/com/duy/ccppcompiler/ide/editor/CppIdeActivity.java

@@ -1,9 +1,9 @@
 package com.duy.ide.code.api;
 
-import android.widget.EditText;
+import com.duy.ide.editor.internal.suggestion.Editor;
 
 import java.util.ArrayList;
 
 public interface SuggestionProvider {
-    ArrayList<SuggestItem> getSuggestions(EditText editor);
+    ArrayList<SuggestItem> getSuggestions(Editor editor);
 }

lib-n-ide/src/main/java/com/duy/ide/code/api/SuggestionProvider.java

@@ -22,6 +22,7 @@
 import android.content.res.TypedArray;
 import android.graphics.Color;
 import android.os.Bundle;
+import android.os.Handler;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.support.annotation.MainThread;
@@ -71,15 +72,14 @@
 public class EditorDelegate implements TextWatcher, IEditorDelegate {
     public final static String KEY_CLUSTER = "is_cluster";
     private static final String TAG = "EditorDelegate";
+    private final Handler mHandler = new Handler();
     private Context mContext;
     private Document mDocument;
     @NonNull
     private SavedState savedState;
-
     private int mOrientation;
     private boolean loaded = true;
     private int findResultsKeywordColor;
-
     @Nullable
     private IEditAreaView mEditText;
     @Nullable
@@ -88,6 +88,12 @@ public class EditorDelegate implements TextWatcher, IEditorDelegate {
     private SuggestionProvider mSuggestionProvider;
     @Nullable
     private GenerateSuggestDataTask mGenerateSuggestDataTask;
+    private final Runnable mGetSuggestion = new Runnable() {
+        @Override
+        public void run() {
+            performGetSuggestion();
+        }
+    };
 
     EditorDelegate(@NonNull SavedState ss) {
         savedState = ss;
@@ -194,6 +200,10 @@ public void onCreate(IEditAreaView editorView) {
     }
 
     public void onDestroy() {
+        if (mGenerateSuggestDataTask != null) {
+            mGenerateSuggestDataTask.cancel(true);
+        }
+
         if (isChanged() && Preferences.getInstance(getContext()).isAutoSave()) {
             saveInBackground();
         }
@@ -423,7 +433,6 @@ public void doCommand(Command command) {
         }
     }
 
-
     /**
      * Format current source
      */
@@ -531,11 +540,17 @@ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
     @Override
     public void onTextChanged(CharSequence s, int start, int before, int count) {
         //now auto complete working
+        mHandler.removeCallbacks(mGetSuggestion);
+        mHandler.postDelayed(mGetSuggestion, 100);
+    }
+
+    private void performGetSuggestion() {
         if (mSuggestionProvider != null && mEditText != null) {
             if (mGenerateSuggestDataTask != null) {
                 mGenerateSuggestDataTask.cancel(true);
             }
-            mGenerateSuggestDataTask = new GenerateSuggestDataTask((SuggestionEditor) mEditText,
+            mGenerateSuggestDataTask = new GenerateSuggestDataTask(
+                    (SuggestionEditor) mEditText,
                     mSuggestionProvider);
             mGenerateSuggestDataTask.execute();
         }

lib-n-ide/src/main/java/com/duy/ide/editor/EditorDelegate.java

@@ -0,0 +1,11 @@
+package com.duy.ide.editor.internal.suggestion;
+
+public class Editor {
+    private String text;
+    private int cursor;
+
+    public Editor(String text, int cursor) {
+        this.text = text;
+        this.cursor = cursor;
+    }
+}

lib-n-ide/src/main/java/com/duy/ide/editor/internal/suggestion/Editor.java

@@ -14,6 +14,7 @@ public class GenerateSuggestDataTask extends AsyncTask<Void, Void, ArrayList<Sug
     private static final String TAG = "GenerateSuggestDataTask";
     private SuggestionEditor mEditor;
     private SuggestionProvider mSuggestionProvider;
+    private Editor mContent;
 
     public GenerateSuggestDataTask(@NonNull SuggestionEditor editor,
                                    @NonNull SuggestionProvider provider) {
@@ -24,12 +25,15 @@ public GenerateSuggestDataTask(@NonNull SuggestionEditor editor,
     @Override
     protected void onPreExecute() {
         super.onPreExecute();
+        String content = mEditor.getText().toString();
+        int selectionStart = mEditor.getSelectionStart();
+        mContent = new Editor(content, selectionStart);
     }
 
     @Override
     protected ArrayList<SuggestItem> doInBackground(Void... params) {
         try {
-            return mSuggestionProvider.getSuggestions(mEditor);
+            return mSuggestionProvider.getSuggestions(mContent);
         } catch (Exception e) {
             e.printStackTrace();
         }