From d4b5796267143ae957d3695df381c754bb9bc412 Mon Sep 17 00:00:00 2001
From: Arjan Schrijver <a_gadgetbridge@anymore.nl>
Date: Fri, 16 Jul 2021 11:36:46 +0200
Subject: [PATCH] Fossil Hybrid HR: Add drag&drop for widgets

---
 .../HybridHRWatchfaceDesignerActivity.java    | 42 ++++++++++++++++---
 .../qhybrid/HybridHRWatchfaceWidget.java      |  8 ++++
 .../activity_hybridhr_watchface_designer.xml  |  3 +-
 3 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceDesignerActivity.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceDesignerActivity.java
index ab183d6cd..4567668cd 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceDesignerActivity.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceDesignerActivity.java
@@ -34,6 +34,7 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.provider.MediaStore;
 import android.util.DisplayMetrics;
+import android.view.DragEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -73,7 +74,7 @@ import nodomain.freeyourgadget.gadgetbridge.util.BitmapUtil;
 import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
 import nodomain.freeyourgadget.gadgetbridge.util.GB;
 
-public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implements View.OnClickListener {
+public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implements View.OnClickListener, View.OnLongClickListener, View.OnDragListener {
     private final Logger LOG = LoggerFactory.getLogger(HybridHRWatchfaceDesignerActivity.class);
     private GBDevice mGBDevice;
     private DeviceCoordinator mCoordinator;
@@ -108,6 +109,7 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
 
         renderWatchfacePreview();
 
+        backgroundImageView.setOnDragListener(this);
         findViewById(R.id.button_edit_name).setOnClickListener(this);
         findViewById(R.id.button_set_background).setOnClickListener(this);
         findViewById(R.id.button_add_widget).setOnClickListener(this);
@@ -184,6 +186,33 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
         }
     }
 
+    @Override
+    public boolean onLongClick(View view) {
+        view.startDrag(null, new View.DragShadowBuilder(view), view, 0);
+        view.setVisibility(View.INVISIBLE);
+        return true;
+    }
+
+    @Override
+    public boolean onDrag(View targetView, DragEvent event) {
+        View draggedWidget = (View) event.getLocalState();
+        switch (event.getAction()) {
+            case DragEvent.ACTION_DROP:
+                int posX = (int)(event.getX() / scaleFactor);
+                int posY = (int)(event.getY() / scaleFactor);
+                widgets.get(draggedWidget.getId()).setPosX(posX);
+                widgets.get(draggedWidget.getId()).setPosY(posY);
+                renderWatchfacePreview();
+                break;
+            case DragEvent.ACTION_DRAG_ENDED:
+                if (!event.getResult()) {
+                    draggedWidget.setVisibility(View.VISIBLE);
+                }
+                break;
+        }
+        return true;
+    }
+
     private void loadConfigurationFromApp(String appUUID) {
         File appCacheDir;
         try {
@@ -279,15 +308,15 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
             processedBackgroundImage = Bitmap.createScaledBitmap(selectedBackgroundImage, displayImageSize, displayImageSize, true);
         }
         // Remove existing widget ImageViews
-        RelativeLayout imageContainer = this.findViewById(R.id.watchface_preview_image);
+        RelativeLayout previewLayout = this.findViewById(R.id.watchface_preview_layout);
         boolean onlyPreviewIsRemaining = false;
         while (!onlyPreviewIsRemaining) {
-            int childCount = imageContainer.getChildCount();
+            int childCount = previewLayout.getChildCount();
             int i;
             for(i=0; i<childCount; i++) {
-                View currentChild = imageContainer.getChildAt(i);
+                View currentChild = previewLayout.getChildAt(i);
                 if (currentChild.getId() != R.id.hybridhr_background_image) {
-                    imageContainer.removeView(currentChild);
+                    previewLayout.removeView(currentChild);
                     break;
                 }
             }
@@ -323,7 +352,8 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
                     showWidgetEditPopup(v.getId());
                 }
             });
-            imageContainer.addView(widgetView);
+            widgetView.setOnLongClickListener(this);
+            previewLayout.addView(widgetView);
         }
         backgroundImageView.setImageBitmap(processedBackgroundImage);
     }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceWidget.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceWidget.java
index a71f9a6d6..c21833762 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceWidget.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceWidget.java
@@ -58,4 +58,12 @@ public class HybridHRWatchfaceWidget {
     public int getPosY() {
         return posY;
     }
+
+    public void setPosX(int posX) {
+        this.posX = posX;
+    }
+
+    public void setPosY(int posY) {
+        this.posY = posY;
+    }
 }
diff --git a/app/src/main/res/layout/activity_hybridhr_watchface_designer.xml b/app/src/main/res/layout/activity_hybridhr_watchface_designer.xml
index b9016c536..d40eacc96 100644
--- a/app/src/main/res/layout/activity_hybridhr_watchface_designer.xml
+++ b/app/src/main/res/layout/activity_hybridhr_watchface_designer.xml
@@ -11,6 +11,7 @@
     tools:context=".devices.qhybrid.HybridHRWatchfaceDesignerActivity">
 
     <RelativeLayout
+        android:id="@+id/watchface_name_layout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
 
@@ -32,7 +33,7 @@
     </RelativeLayout>
 
     <RelativeLayout
-        android:id="@+id/watchface_preview_image"
+        android:id="@+id/watchface_preview_layout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="20dp"