Put imageviewer in a navigationcontroller and some cleanup

Clover/app/src/main/java/org/floens/chan/controller/NavigationController.java

@@ -19,7 +19,6 @@ package org.floens.chan.controller;
 
 import android.content.Context;
 import android.content.res.Configuration;
-import android.support.v4.widget.DrawerLayout;
 import android.widget.FrameLayout;
 
 import org.floens.chan.ui.toolbar.Toolbar;
@@ -30,8 +29,6 @@ import java.util.List;
 public abstract class NavigationController extends Controller implements ControllerTransition.Callback, Toolbar.ToolbarCallback {
     public Toolbar toolbar;
     public FrameLayout container;
-    public DrawerLayout drawerLayout;
-    public FrameLayout drawer;
 
     private List<Controller> controllerList = new ArrayList<>();
     private ControllerTransition controllerTransition;
@@ -41,6 +38,15 @@ public abstract class NavigationController extends Controller implements Control
         super(context);
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        while (controllerList.size() > 0) {
+            popController(false);
+        }
+    }
+
     public boolean pushController(final Controller to) {
         return pushController(to, true);
     }
@@ -92,12 +98,12 @@ public abstract class NavigationController extends Controller implements Control
             throw new IllegalArgumentException("Cannot pop controller while a transition is in progress.");
         }
 
-        if (controllerList.size() == 1) {
-            throw new IllegalArgumentException("Cannot pop with 1 controller left");
+        if (controllerList.size() == 0) {
+            throw new IllegalArgumentException("Cannot pop with no controllers left");
         }
 
         final Controller from = controllerList.get(controllerList.size() - 1);
-        final Controller to = controllerList.get(controllerList.size() - 2);
+        final Controller to = controllerList.size() > 1 ? controllerList.get(controllerList.size() - 2) : null;
 
         if (controllerTransition != null) {
             blockingInput = true;
@@ -105,17 +111,18 @@ public abstract class NavigationController extends Controller implements Control
             controllerTransition.setCallback(this);
 
             ControllerLogic.startTransition(from, to, true, false, container, controllerTransition);
+            if (to != null) {
                 toolbar.setNavigationItem(true, false, to.navigationItem);
+            }
         } else {
             ControllerLogic.transition(from, to, true, false, container);
+            if (to != null) {
                 toolbar.setNavigationItem(false, false, to.navigationItem);
             }
-
-        return true;
+            controllerList.remove(from);
         }
 
-    public void setControllerList(List<Controller> controllers) {
-
+        return true;
     }
 
     @Override

Clover/app/src/main/java/org/floens/chan/ui/activity/BoardActivity.java

@@ -88,10 +88,19 @@ public class BoardActivity extends Activity {
     @Override
     public void onBackPressed() {
         if (!stackTop().onBack()) {
+            // Don't destroy the view, let Android do that or it'll create artifacts
+            stackTop().onHide();
             super.onBackPressed();
         }
     }
 
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+
+        stackTop().onDestroy();
+    }
+
     private Controller stackTop() {
         return stack.get(stack.size() - 1);
     }

Clover/app/src/main/java/org/floens/chan/ui/controller/ImageViewerController.java

@@ -20,23 +20,24 @@ import org.floens.chan.R;
 import org.floens.chan.controller.Controller;
 import org.floens.chan.ui.view.ClippingImageView;
 import org.floens.chan.utils.AnimationUtils;
+import org.floens.chan.utils.Logger;
 
 import static org.floens.chan.utils.AndroidUtils.dp;
 import static org.floens.chan.utils.AnimationUtils.calculateBoundsAnimation;
 
-public class ImageViewController extends Controller implements View.OnClickListener {
-    private static final int DURATION = 165;
-    private static final float CLIP_DURATION_PERCENTAGE = 0.40f;
-    private static final float FINAL_ALPHA = 0.80f;
+public class ImageViewerController extends Controller implements View.OnClickListener {
+    private static final int TRANSITION_DURATION = 200; //165;
+    private static final int TRANSITION_CLIP_DURATION = (int) (TRANSITION_DURATION * 0.5f);
+    private static final float TRANSITION_FINAL_ALPHA = 0.80f;
 
-    private ClippingImageView imageView;
+    private ClippingImageView previewImage;
     private Callback callback;
 
     private int statusBarColorPrevious;
-    private AnimatorSet startAnimation;
+    private AnimatorSet startPreviewAnimation;
     private AnimatorSet endAnimation;
 
-    public ImageViewController(Context context) {
+    public ImageViewerController(Context context) {
         super(context);
     }
 
@@ -44,62 +45,59 @@ public class ImageViewController extends Controller implements View.OnClickListe
     public void onCreate() {
         super.onCreate();
 
-        view = inflateRes(R.layout.controller_view_image);
-
-        imageView = (ClippingImageView) view.findViewById(R.id.image);
+        view = inflateRes(R.layout.controller_image_viewer);
+        previewImage = (ClippingImageView) view.findViewById(R.id.image);
         view.setOnClickListener(this);
     }
 
     @Override
-    public boolean onBack() {
-        removeImage();
-        return true;
+    public void onClick(View v) {
+        startPreviewOutTransition();
     }
 
     @Override
-    public void onClick(View v) {
-        removeImage();
+    public boolean onBack() {
+        startPreviewOutTransition();
+        return true;
     }
 
-    public void setImage(Callback callback, final ImageView startImageView) {
+    public void startPreviewInTransition(Callback callback, final ImageView previewImageView) {
         this.callback = callback;
 
-        imageView.setImageDrawable(startImageView.getDrawable());
+        previewImage.setImageDrawable(previewImageView.getDrawable());
 
-        Rect startBounds = getStartImageViewBounds(startImageView);
+        Rect startBounds = getImageViewBounds(previewImageView);
         final Rect endBounds = new Rect();
         final Point globalOffset = new Point();
         view.getGlobalVisibleRect(endBounds, globalOffset);
         float startScale = calculateBoundsAnimation(startBounds, endBounds, globalOffset);
 
-        imageView.setPivotX(0f);
-        imageView.setPivotY(0f);
-        imageView.setX(startBounds.left);
-        imageView.setY(startBounds.top);
-        imageView.setScaleX(startScale);
-        imageView.setScaleY(startScale);
+        previewImage.setPivotX(0f);
+        previewImage.setPivotY(0f);
+        previewImage.setX(startBounds.left);
+        previewImage.setY(startBounds.top);
+        previewImage.setScaleX(startScale);
+        previewImage.setScaleY(startScale);
 
-        Rect clipStartBounds = new Rect(0, 0, (int) (startImageView.getWidth() / startScale), (int) (startImageView.getHeight() / startScale));
+        Rect clipStartBounds = new Rect(0, 0, (int) (previewImageView.getWidth() / startScale), (int) (previewImageView.getHeight() / startScale));
 
-        Window window = ((Activity) context).getWindow();
         if (Build.VERSION.SDK_INT >= 21) {
-            statusBarColorPrevious = window.getStatusBarColor();
+            statusBarColorPrevious = getWindow().getStatusBarColor();
         }
 
-        startAnimation(startBounds, endBounds, startScale, clipStartBounds);
+        doPreviewInTransition(startBounds, endBounds, startScale, clipStartBounds);
     }
 
-    public void removeImage() {
-        if (startAnimation != null || endAnimation != null) {
+    public void startPreviewOutTransition() {
+        if (startPreviewAnimation != null || endAnimation != null) {
             return;
         }
 
-        endAnimation();
-//        endAnimationEmpty();
+        doPreviewOutAnimation();
     }
 
-    private void startAnimation(Rect startBounds, Rect finalBounds, float startScale, final Rect clipStartBounds) {
-        startAnimation = new AnimatorSet();
+    private void doPreviewInTransition(Rect startBounds, Rect finalBounds, float startScale, final Rect clipStartBounds) {
+        startPreviewAnimation = new AnimatorSet();
 
         ValueAnimator backgroundAlpha = ValueAnimator.ofFloat(0f, 1f);
         backgroundAlpha.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@@ -114,42 +112,39 @@ public class ImageViewController extends Controller implements View.OnClickListe
         clip.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
             @Override
             public void onAnimationUpdate(ValueAnimator animation) {
-                AnimationUtils.getClippingBounds(clipStartBounds, imageView, clipRect, (float) animation.getAnimatedValue());
-                imageView.clip(clipRect);
+                AnimationUtils.getClippingBounds(clipStartBounds, previewImage, clipRect, (float) animation.getAnimatedValue());
+                previewImage.clip(clipRect);
             }
         });
 
-        startAnimation
-                .play(ObjectAnimator.ofFloat(imageView, View.X, startBounds.left, finalBounds.left).setDuration(DURATION))
-                .with(ObjectAnimator.ofFloat(imageView, View.Y, startBounds.top, finalBounds.top).setDuration(DURATION))
-                .with(ObjectAnimator.ofFloat(imageView, View.SCALE_X, startScale, 1f).setDuration(DURATION))
-                .with(ObjectAnimator.ofFloat(imageView, View.SCALE_Y, startScale, 1f).setDuration(DURATION))
-                .with(backgroundAlpha.setDuration(DURATION))
-                .with(clip.setDuration((long) (DURATION * CLIP_DURATION_PERCENTAGE)));
+        startPreviewAnimation
+                .play(ObjectAnimator.ofFloat(previewImage, View.X, startBounds.left, finalBounds.left).setDuration(TRANSITION_DURATION))
+                .with(ObjectAnimator.ofFloat(previewImage, View.Y, startBounds.top, finalBounds.top).setDuration(TRANSITION_DURATION))
+                .with(ObjectAnimator.ofFloat(previewImage, View.SCALE_X, startScale, 1f).setDuration(TRANSITION_DURATION))
+                .with(ObjectAnimator.ofFloat(previewImage, View.SCALE_Y, startScale, 1f).setDuration(TRANSITION_DURATION))
+                .with(backgroundAlpha.setDuration(TRANSITION_DURATION))
+                .with(clip.setDuration(TRANSITION_CLIP_DURATION));
 
-        startAnimation.setInterpolator(new DecelerateInterpolator());
-        startAnimation.addListener(new AnimatorListenerAdapter() {
+        startPreviewAnimation.setInterpolator(new DecelerateInterpolator());
+        startPreviewAnimation.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
-                startAnimationEnd();
-                startAnimation = null;
+                previewImage.setX(0f);
+                previewImage.setY(0f);
+                previewImage.setScaleX(1f);
+                previewImage.setScaleY(1f);
+                previewImage.clip(null);
+                startPreviewAnimation = null;
             }
         });
-        startAnimation.start();
-    }
-
-    private void startAnimationEnd() {
-        imageView.setX(0f);
-        imageView.setY(0f);
-        imageView.setScaleX(1f);
-        imageView.setScaleY(1f);
+        startPreviewAnimation.start();
     }
 
-    private void endAnimation() {
+    private void doPreviewOutAnimation() {
         ImageView startImage = getStartImageView();
         Rect startBounds = null;
         if (startImage != null) {
-            startBounds = getStartImageViewBounds(startImage);
+            startBounds = getImageViewBounds(startImage);
         }
         if (startBounds == null) {
             endAnimation = new AnimatorSet();
@@ -163,16 +158,16 @@ public class ImageViewController extends Controller implements View.OnClickListe
             });
 
             endAnimation
-                    .play(ObjectAnimator.ofFloat(imageView, View.Y, imageView.getTop(), imageView.getTop() + dp(20)))
-                    .with(ObjectAnimator.ofFloat(imageView, View.ALPHA, 1f, 0f))
+                    .play(ObjectAnimator.ofFloat(previewImage, View.Y, previewImage.getTop(), previewImage.getTop() + dp(20)))
+                    .with(ObjectAnimator.ofFloat(previewImage, View.ALPHA, 1f, 0f))
                     .with(backgroundAlpha);
 
-            endAnimation.setDuration(DURATION);
+            endAnimation.setDuration(TRANSITION_DURATION);
             endAnimation.setInterpolator(new DecelerateInterpolator());
             endAnimation.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
-                    endAnimationEnd();
+                    previewOutAnimationEnded();
                 }
             });
             endAnimation.start();
@@ -198,75 +193,84 @@ public class ImageViewController extends Controller implements View.OnClickListe
             clip.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                 @Override
                 public void onAnimationUpdate(ValueAnimator animation) {
-                    AnimationUtils.getClippingBounds(clipStartBounds, imageView, clipRect, (float) animation.getAnimatedValue());
-                    imageView.clip(clipRect);
+                    AnimationUtils.getClippingBounds(clipStartBounds, previewImage, clipRect, (float) animation.getAnimatedValue());
+                    previewImage.clip(clipRect);
                 }
             });
-            long clipDuration = (long) (DURATION * CLIP_DURATION_PERCENTAGE);
-            clip.setStartDelay(DURATION - clipDuration);
-            clip.setDuration(clipDuration);
+            clip.setStartDelay(TRANSITION_DURATION - TRANSITION_CLIP_DURATION);
+            clip.setDuration(TRANSITION_CLIP_DURATION);
 
             endAnimation
-                    .play(ObjectAnimator.ofFloat(imageView, View.X, startBounds.left).setDuration(DURATION))
-                    .with(ObjectAnimator.ofFloat(imageView, View.Y, startBounds.top).setDuration(DURATION))
-                    .with(ObjectAnimator.ofFloat(imageView, View.SCALE_X, 1f, startScale).setDuration(DURATION))
-                    .with(ObjectAnimator.ofFloat(imageView, View.SCALE_Y, 1f, startScale).setDuration(DURATION))
-                    .with(backgroundAlpha.setDuration(DURATION))
+                    .play(ObjectAnimator.ofFloat(previewImage, View.X, startBounds.left).setDuration(TRANSITION_DURATION))
+                    .with(ObjectAnimator.ofFloat(previewImage, View.Y, startBounds.top).setDuration(TRANSITION_DURATION))
+                    .with(ObjectAnimator.ofFloat(previewImage, View.SCALE_X, 1f, startScale).setDuration(TRANSITION_DURATION))
+                    .with(ObjectAnimator.ofFloat(previewImage, View.SCALE_Y, 1f, startScale).setDuration(TRANSITION_DURATION))
+                    .with(backgroundAlpha.setDuration(TRANSITION_DURATION))
                     .with(clip);
 
             endAnimation.setInterpolator(new DecelerateInterpolator());
             endAnimation.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationEnd(Animator animation) {
-                    endAnimationEnd();
+                    previewOutAnimationEnded();
                 }
             });
             endAnimation.start();
         }
     }
 
-    private void endAnimationEnd() {
-        Window window = ((Activity) context).getWindow();
-        if (Build.VERSION.SDK_INT >= 21) {
-            window.setStatusBarColor(statusBarColorPrevious);
-        }
+    private void previewOutAnimationEnded() {
+        setStatusBarColor(statusBarColorPrevious);
 
-        callback.onImageViewLayoutDestroy(this);
-        stopPresenting(false);
+        callback.onPreviewDestroy(this);
+        navigationController.stopPresenting(false);
     }
 
     private void setBackgroundAlpha(float alpha) {
-        alpha = alpha * FINAL_ALPHA;
+        alpha *= TRANSITION_FINAL_ALPHA;
         view.setBackgroundColor(Color.argb((int) (alpha * 255f), 0, 0, 0));
 
         if (Build.VERSION.SDK_INT >= 21) {
-            Window window = ((Activity) context).getWindow();
-
             int r = (int) ((1f - alpha) * Color.red(statusBarColorPrevious));
             int g = (int) ((1f - alpha) * Color.green(statusBarColorPrevious));
             int b = (int) ((1f - alpha) * Color.blue(statusBarColorPrevious));
 
-            window.setStatusBarColor(Color.argb(255, r, g, b));
+            setStatusBarColor(Color.argb(255, r, g, b));
+        }
+    }
+
+    private void setStatusBarColor(int color) {
+        if (Build.VERSION.SDK_INT >= 21) {
+            getWindow().setStatusBarColor(color);
         }
     }
 
-    private Rect getStartImageViewBounds(ImageView image) {
+    private Rect getImageViewBounds(ImageView image) {
         Rect startBounds = new Rect();
-        if (image.getGlobalVisibleRect(startBounds)) {
+        if (image.getGlobalVisibleRect(startBounds) && !startBounds.isEmpty()) {
             AnimationUtils.adjustImageViewBoundsToDrawableBounds(image, startBounds);
+            if (!startBounds.isEmpty()) {
+                Logger.test(startBounds.toShortString());
                 return startBounds;
             } else {
                 return null;
             }
+        } else {
+            return null;
+        }
     }
 
     private ImageView getStartImageView() {
-        return callback.getImageView(this);
+        return callback.getPreviewImageStartView(this);
+    }
+
+    private Window getWindow() {
+        return ((Activity) context).getWindow();
     }
 
     public interface Callback {
-        public ImageView getImageView(ImageViewController imageViewController);
+        public ImageView getPreviewImageStartView(ImageViewerController imageViewerController);
 
-        public void onImageViewLayoutDestroy(ImageViewController imageViewController);
+        public void onPreviewDestroy(ImageViewerController imageViewerController);
     }
 }

Clover/app/src/main/java/org/floens/chan/ui/controller/ImageViewerNavigationController.java

@@ -0,0 +1,43 @@
+package org.floens.chan.ui.controller;
+
+import android.content.Context;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+
+import org.floens.chan.R;
+import org.floens.chan.controller.NavigationController;
+import org.floens.chan.ui.toolbar.Toolbar;
+import org.floens.chan.utils.AndroidUtils;
+
+public class ImageViewerNavigationController extends NavigationController {
+    private ImageViewerController imageViewerController;
+
+    public ImageViewerNavigationController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        view = inflateRes(R.layout.controller_navigation_image_viewer);
+        toolbar = (Toolbar) view.findViewById(R.id.toolbar);
+        container = (FrameLayout) view.findViewById(R.id.container);
+
+        toolbar.setCallback(this);
+
+        imageViewerController = new ImageViewerController(context);
+        pushController(imageViewerController, false);
+    }
+
+    public void setImage(final ImageViewerController.Callback callback, final ImageView startImageView) {
+        AndroidUtils.waitForMeasure(imageViewerController.view, new AndroidUtils.OnMeasuredCallback() {
+            @Override
+            public boolean onMeasured(View view) {
+                imageViewerController.startPreviewInTransition(callback, startImageView);
+                return true;
+            }
+        });
+    }
+}

Clover/app/src/main/java/org/floens/chan/ui/controller/RootNavigationController.java

@@ -31,6 +31,9 @@ import org.floens.chan.utils.AndroidUtils;
 import static org.floens.chan.utils.AndroidUtils.dp;
 
 public class RootNavigationController extends NavigationController {
+    public DrawerLayout drawerLayout;
+    public FrameLayout drawer;
+
     public RootNavigationController(Context context) {
         super(context);
     }
@@ -39,7 +42,7 @@ public class RootNavigationController extends NavigationController {
     public void onCreate() {
         super.onCreate();
 
-        view = inflateRes(R.layout.root_layout);
+        view = inflateRes(R.layout.controller_navigation_drawer);
         toolbar = (Toolbar) view.findViewById(R.id.toolbar);
         container = (FrameLayout) view.findViewById(R.id.container);
         drawerLayout = (DrawerLayout) view.findViewById(R.id.drawer_layout);

Clover/app/src/main/java/org/floens/chan/ui/controller/ThreadController.java

@@ -7,11 +7,10 @@ import android.widget.ImageView;
 import org.floens.chan.controller.Controller;
 import org.floens.chan.core.model.PostImage;
 import org.floens.chan.ui.layout.ThreadLayout;
-import org.floens.chan.utils.AndroidUtils;
 
 import java.util.List;
 
-public abstract class ThreadController extends Controller implements ThreadLayout.ThreadLayoutCallback, ImageViewController.Callback {
+public abstract class ThreadController extends Controller implements ThreadLayout.ThreadLayoutCallback, ImageViewerController.Callback {
     protected ThreadLayout threadLayout;
     private ImageView presentingImageView;
 
@@ -28,24 +27,18 @@ public abstract class ThreadController extends Controller implements ThreadLayou
         presentingImageView = thumbnail;
         presentingImageView.setVisibility(View.INVISIBLE);
 
-        final ImageViewController imageViewController = new ImageViewController(context);
-        presentController(imageViewController, false);
-        AndroidUtils.waitForMeasure(imageViewController.view, new AndroidUtils.OnMeasuredCallback() {
-            @Override
-            public boolean onMeasured(View view) {
-                imageViewController.setImage(ThreadController.this, thumbnail);
-                return true;
-            }
-        });
+        final ImageViewerNavigationController imageViewerNavigationController = new ImageViewerNavigationController(context);
+        presentController(imageViewerNavigationController, false);
+        imageViewerNavigationController.setImage(this, thumbnail);
     }
 
     @Override
-    public ImageView getImageView(ImageViewController imageViewController) {
+    public ImageView getPreviewImageStartView(ImageViewerController imageViewerController) {
         return presentingImageView;
     }
 
     @Override
-    public void onImageViewLayoutDestroy(ImageViewController imageViewController) {
+    public void onPreviewDestroy(ImageViewerController imageViewerController) {
         presentingImageView.setVisibility(View.VISIBLE);
         presentingImageView = null;
     }

Clover/app/src/main/java/org/floens/chan/ui/view/ClippingImageView.java

@@ -31,7 +31,11 @@ public class ClippingImageView extends ImageView {
     }
 
     public void clip(Rect rect) {
+        if (rect == null) {
+            clipRect.setEmpty();
+        } else {
             clipRect.set(rect);
+        }
         invalidate();
     }
 }

Clover/app/src/main/res/layout/controller_image_viewer.xml

@@ -1,6 +1,5 @@
 <?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">
 

Clover/app/src/main/res/layout/controller_navigation_image_viewer.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+Clover - 4chan browser https://github.com/Floens/Clover/
+Copyright (C) 2014  Floens
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <org.floens.chan.ui.toolbar.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="56dp"
+        android:background="@color/primary"
+        android:elevation="4dp" />
+
+    <FrameLayout
+        android:id="@+id/container"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" />
+
+</LinearLayout>