Merge pull request #186 from owncloud/fixed_contradicted_messages_in_login_view
[pub/Android/ownCloud.git] / src / com / owncloud / android / ui / preview / PreviewImageActivity.java
index 1e9d108..a41f6eb 100644 (file)
@@ -2,9 +2,8 @@
  *   Copyright (C) 2012-2013  ownCloud Inc.
  *
  *   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 2 of the License, or
- *   (at your option) any later version.
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
  *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -20,18 +19,23 @@ package com.owncloud.android.ui.preview;
 import android.accounts.Account;
 import android.app.Dialog;
 import android.app.ProgressDialog;
+import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.support.v4.view.ViewPager;
-import android.util.Log;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnTouchListener;
 
 import com.actionbarsherlock.app.ActionBar;
 import com.actionbarsherlock.app.SherlockFragmentActivity;
 import com.actionbarsherlock.view.MenuItem;
+import com.actionbarsherlock.view.Window;
 import com.owncloud.android.datamodel.DataStorageManager;
 import com.owncloud.android.datamodel.FileDataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
@@ -39,11 +43,12 @@ import com.owncloud.android.files.services.FileDownloader;
 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
 import com.owncloud.android.files.services.FileUploader;
 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
-import com.owncloud.android.ui.activity.FileDetailActivity;
-import com.owncloud.android.ui.fragment.FileDetailFragment;
+import com.owncloud.android.ui.activity.FileActivity;
+import com.owncloud.android.ui.activity.FileDisplayActivity;
 import com.owncloud.android.ui.fragment.FileFragment;
 
 import com.owncloud.android.AccountUtils;
+import com.owncloud.android.Log_OC;
 import com.owncloud.android.R;
 
 /**
@@ -51,13 +56,14 @@ import com.owncloud.android.R;
  *  
  *  @author David A. Velasco
  */
-public class PreviewImageActivity extends SherlockFragmentActivity implements FileFragment.ContainerActivity, ViewPager.OnPageChangeListener {
+public class PreviewImageActivity extends FileActivity implements FileFragment.ContainerActivity, ViewPager.OnPageChangeListener, OnTouchListener {
     
     public static final int DIALOG_SHORT_WAIT = 0;
 
     public static final String TAG = PreviewImageActivity.class.getSimpleName();
     
     public static final String KEY_WAITING_TO_PREVIEW = "WAITING_TO_PREVIEW";
+    private static final String KEY_WAITING_FOR_BINDER = "WAITING_FOR_BINDER";
     
     private OCFile mFile;
     private OCFile mParentFolder;  
@@ -70,15 +76,20 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
     private FileDownloaderBinder mDownloaderBinder = null;
     private ServiceConnection mDownloadConnection, mUploadConnection = null;
     private FileUploaderBinder mUploaderBinder = null;
-    private OCFile mWaitingToPreview = null;
+
+    private boolean mRequestWaitingForBinder;
+    
+    private DownloadFinishReceiver mDownloadFinishReceiver;
+
+    private boolean mFullScreen;
     
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        mFile = getIntent().getParcelableExtra(FileDetailFragment.EXTRA_FILE);
-        mAccount = getIntent().getParcelableExtra(FileDetailFragment.EXTRA_ACCOUNT);
+        mFile = getIntent().getParcelableExtra(FileActivity.EXTRA_FILE);
+        mAccount = getIntent().getParcelableExtra(FileActivity.EXTRA_ACCOUNT);
         if (mFile == null) {
             throw new IllegalStateException("Instanced with a NULL OCFile");
         }
@@ -88,12 +99,15 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
         if (!mFile.isImage()) {
             throw new IllegalArgumentException("Non-image file passed as argument");
         }
-        
+        requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
         setContentView(R.layout.preview_image_activity);
     
         ActionBar actionBar = getSupportActionBar();
         actionBar.setDisplayHomeAsUpEnabled(true);
         actionBar.setTitle(mFile.getFileName());
+        actionBar.hide();
+        
+        mFullScreen = true;
         
         mStorageManager = new FileDataStorageManager(mAccount, getContentResolver());
         mParentFolder = mStorageManager.getFileById(mFile.getParentId());
@@ -102,33 +116,44 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
             mParentFolder = mStorageManager.getFileByPath(OCFile.PATH_SEPARATOR);
         }
 
-        createViewPager();
-
-        if (savedInstanceState == null) {
-            mWaitingToPreview = (mFile.isDown())?null:mFile;
+        if (savedInstanceState != null) {
+            mRequestWaitingForBinder = savedInstanceState.getBoolean(KEY_WAITING_FOR_BINDER);
         } else {
-            mWaitingToPreview = (OCFile) savedInstanceState.getParcelable(KEY_WAITING_TO_PREVIEW);
+            mRequestWaitingForBinder = false;
         }
         
-        mDownloadConnection = new PreviewImageServiceConnection();
-        bindService(new Intent(this, FileDownloader.class), mDownloadConnection, Context.BIND_AUTO_CREATE);
-        mUploadConnection = new PreviewImageServiceConnection();
-        bindService(new Intent(this, FileUploader.class), mUploadConnection, Context.BIND_AUTO_CREATE);
-        
+        createViewPager();
+
     }
 
     private void createViewPager() {
         mPreviewImagePagerAdapter = new PreviewImagePagerAdapter(getSupportFragmentManager(), mParentFolder, mAccount, mStorageManager);
         mViewPager = (ViewPager) findViewById(R.id.fragmentPager);
-        mViewPager.setAdapter(mPreviewImagePagerAdapter);        
+        int position = mPreviewImagePagerAdapter.getFilePosition(mFile);
+        position = (position >= 0) ? position : 0;
+        mViewPager.setAdapter(mPreviewImagePagerAdapter); 
         mViewPager.setOnPageChangeListener(this);
+        mViewPager.setCurrentItem(position);
+        if (position == 0 && !mFile.isDown()) {
+            // this is necessary because mViewPager.setCurrentItem(0) just after setting the adapter does not result in a call to #onPageSelected(0) 
+            mRequestWaitingForBinder = true;
+        }
+    }
+    
+    
+    @Override
+    public void onStart() {
+        super.onStart();
+        mDownloadConnection = new PreviewImageServiceConnection();
+        bindService(new Intent(this, FileDownloader.class), mDownloadConnection, Context.BIND_AUTO_CREATE);
+        mUploadConnection = new PreviewImageServiceConnection();
+        bindService(new Intent(this, FileUploader.class), mUploadConnection, Context.BIND_AUTO_CREATE);
     }
     
-
     @Override
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
-        outState.putParcelable(KEY_WAITING_TO_PREVIEW, mWaitingToPreview);
+        outState.putBoolean(KEY_WAITING_FOR_BINDER, mRequestWaitingForBinder);    
     }
 
 
@@ -139,11 +164,15 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
         public void onServiceConnected(ComponentName component, IBinder service) {
                 
             if (component.equals(new ComponentName(PreviewImageActivity.this, FileDownloader.class))) {
-                Log.d(TAG, "Download service connected");
                 mDownloaderBinder = (FileDownloaderBinder) service;
+                if (mRequestWaitingForBinder) {
+                    mRequestWaitingForBinder = false;
+                    Log_OC.d(TAG, "Simulating reselection of current page after connection of download binder");
+                    onPageSelected(mViewPager.getCurrentItem());
+                }
                     
             } else if (component.equals(new ComponentName(PreviewImageActivity.this, FileUploader.class))) {
-                Log.d(TAG, "Upload service connected");
+                Log_OC.d(TAG, "Upload service connected");
                 mUploaderBinder = (FileUploaderBinder) service;
             } else {
                 return;
@@ -154,10 +183,10 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
         @Override
         public void onServiceDisconnected(ComponentName component) {
             if (component.equals(new ComponentName(PreviewImageActivity.this, FileDownloader.class))) {
-                Log.d(TAG, "Download service suddenly disconnected");
+                Log_OC.d(TAG, "Download service suddenly disconnected");
                 mDownloaderBinder = null;
             } else if (component.equals(new ComponentName(PreviewImageActivity.this, FileUploader.class))) {
-                Log.d(TAG, "Upload service suddenly disconnected");
+                Log_OC.d(TAG, "Upload service suddenly disconnected");
                 mUploaderBinder = null;
             }
         }
@@ -165,8 +194,8 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
     
     
     @Override
-    public void onDestroy() {
-        super.onDestroy();
+    public void onStop() {
+        super.onStop();
         if (mDownloadConnection != null) {
             unbindService(mDownloadConnection);
             mDownloadConnection = null;
@@ -179,6 +208,12 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
     
     
     @Override
+    public void onDestroy() {
+        super.onDestroy();
+    }
+    
+    
+    @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         boolean returnValue = false;
         
@@ -198,17 +233,28 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
     @Override
     protected void onResume() {
         super.onResume();
+        //Log.e(TAG, "ACTIVITY, ONRESUME");
+        mDownloadFinishReceiver = new DownloadFinishReceiver();
+        IntentFilter filter = new IntentFilter(FileDownloader.DOWNLOAD_FINISH_MESSAGE);
+        filter.addAction(FileDownloader.DOWNLOAD_ADDED_MESSAGE);
+        registerReceiver(mDownloadFinishReceiver, filter);
+    }
+
+    @Override
+    protected void onPostResume() {
+        //Log.e(TAG, "ACTIVITY, ONPOSTRESUME");
+        super.onPostResume();
+    }
+    
+    @Override
+    public void onPause() {
+        super.onPause();
+        unregisterReceiver(mDownloadFinishReceiver);
+        mDownloadFinishReceiver = null;
     }
     
 
     private void backToDisplayActivity() {
-        /*
-        Intent intent = new Intent(this, FileDisplayActivity.class);
-        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
-        intent.putExtra(FileDetailFragment.EXTRA_FILE, mFile);
-        intent.putExtra(FileDetailFragment.EXTRA_ACCOUNT, mAccount);
-        startActivity(intent);
-        */
         finish();
     }
     
@@ -258,43 +304,30 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
 
 
     @Override
-    public void showFragmentWithDetails(OCFile file) {
-        Intent showDetailsIntent = new Intent(this, FileDetailActivity.class);
-        showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, file);
-        showDetailsIntent.putExtra(FileDetailFragment.EXTRA_ACCOUNT, AccountUtils.getCurrentOwnCloudAccount(this));
-        showDetailsIntent.putExtra(FileDetailActivity.EXTRA_MODE, FileDetailActivity.MODE_DETAILS);
+    public void showDetails(OCFile file) {
+        Intent showDetailsIntent = new Intent(this, FileDisplayActivity.class);
+        showDetailsIntent.setAction(FileDisplayActivity.ACTION_DETAILS);
+        showDetailsIntent.putExtra(FileActivity.EXTRA_FILE, file);
+        showDetailsIntent.putExtra(FileActivity.EXTRA_ACCOUNT, AccountUtils.getCurrentOwnCloudAccount(this));
         startActivity(showDetailsIntent);
+        int pos = mPreviewImagePagerAdapter.getFilePosition(file);
+        file = mPreviewImagePagerAdapter.getFileAt(pos);
+        
     }
 
     
-    private void requestForDownload() {
-        Log.e(TAG, "REQUEST FOR DOWNLOAD : " + mWaitingToPreview.getFileName());
-        if (!mDownloaderBinder.isDownloading(mAccount, mWaitingToPreview)) {
+    private void requestForDownload(OCFile file) {
+        if (mDownloaderBinder == null) {
+            Log_OC.d(TAG, "requestForDownload called without binder to download service");
+            
+        } else if (!mDownloaderBinder.isDownloading(mAccount, file)) {
             Intent i = new Intent(this, FileDownloader.class);
             i.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
-            i.putExtra(FileDownloader.EXTRA_FILE, mWaitingToPreview);
+            i.putExtra(FileDownloader.EXTRA_FILE, file);
             startService(i);
         }
     }
 
-    @Override
-    public void notifySuccessfulDownload(OCFile file, Intent intent, boolean success) {
-        if (success) {
-            if (mWaitingToPreview != null && mWaitingToPreview.equals(file)) {
-                mWaitingToPreview = null;
-                int position = mViewPager.getCurrentItem();
-                mPreviewImagePagerAdapter.updateFile(position, file);
-                Log.e(TAG, "BEFORE NOTIFY DATA SET CHANGED");
-                mPreviewImagePagerAdapter.notifyDataSetChanged();
-                Log.e(TAG, "AFTER NOTIFY DATA SET CHANGED");
-                //Log.e(TAG, "BEFORE INVALIDATE");
-                //mViewPager.postInvalidate();
-                //Log.e(TAG, "AFTER INVALIDATE");
-            }
-        }
-    }
-
-    
     /**
      * This method will be invoked when a new page becomes selected. Animation is not necessarily complete.
      * 
@@ -302,20 +335,23 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
      */
     @Override
     public void onPageSelected(int position) {
-        OCFile currentFile = mPreviewImagePagerAdapter.getFileAt(position); 
-        getSupportActionBar().setTitle(currentFile.getFileName());
-        if (currentFile.isDown()) {
-            mWaitingToPreview = null;
+        if (mDownloaderBinder == null) {
+            mRequestWaitingForBinder = true;
+            
         } else {
-            mWaitingToPreview = currentFile;
-            requestForDownload();
-            mViewPager.invalidate();
+            OCFile currentFile = mPreviewImagePagerAdapter.getFileAt(position); 
+            getSupportActionBar().setTitle(currentFile.getFileName());
+            if (!currentFile.isDown()) {
+                if (!mPreviewImagePagerAdapter.pendingErrorAt(position)) {
+                    requestForDownload(currentFile);
+                }
+            }
         }
     }
     
     /**
      * Called when the scroll state changes. Useful for discovering when the user begins dragging, 
-     * when the pager is automatically settling to the current page, or when it is fully stopped/idle.
+     * when the pager is automatically settling to the current page. when it is fully stopped/idle.
      * 
      * @param   State       The new scroll state (SCROLL_STATE_IDLE, _DRAGGING, _SETTLING
      */
@@ -337,4 +373,71 @@ public class PreviewImageActivity extends SherlockFragmentActivity implements Fi
     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
     }
     
+
+    /**
+     * Class waiting for broadcast events from the {@link FielDownloader} service.
+     * 
+     * Updates the UI when a download is started or finished, provided that it is relevant for the
+     * folder displayed in the gallery.
+     */
+    private class DownloadFinishReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
+            String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
+            if (mAccount.name.equals(accountName) && 
+                    downloadedRemotePath != null) {
+
+                OCFile file = mStorageManager.getFileByPath(downloadedRemotePath);
+                int position = mPreviewImagePagerAdapter.getFilePosition(file);
+                boolean downloadWasFine = intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false);
+                //boolean isOffscreen =  Math.abs((mViewPager.getCurrentItem() - position)) <= mViewPager.getOffscreenPageLimit();
+                
+                if (position >= 0 && intent.getAction().equals(FileDownloader.DOWNLOAD_FINISH_MESSAGE)) {
+                    if (downloadWasFine) {
+                        mPreviewImagePagerAdapter.updateFile(position, file);   
+                        
+                    } else {
+                        mPreviewImagePagerAdapter.updateWithDownloadError(position);
+                    }
+                    mPreviewImagePagerAdapter.notifyDataSetChanged();   // will trigger the creation of new fragments
+                    
+                } else {
+                    Log_OC.d(TAG, "Download finished, but the fragment is offscreen");
+                }
+                
+            }
+            removeStickyBroadcast(intent);
+        }
+
+    }
+
+
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        if (event.getAction() == MotionEvent.ACTION_UP) {
+           toggleFullScreen();
+        }
+        return true;
+    }
+
+    
+    private void toggleFullScreen() {
+        ActionBar actionBar = getSupportActionBar();
+        if (mFullScreen) {
+            actionBar.show();
+            
+        } else {
+            actionBar.hide();
+            
+        }
+        mFullScreen = !mFullScreen;
+    }
+
+    @Override
+    protected void onAccountSet(boolean stateWasRecovered) {
+        // TODO
+    }
+    
+    
 }