show conversation media in contact/conference details

3 files changed, 135 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/ui/util/Attachment.java b/src/main/java/de/pixart/messenger/ui/util/Attachment.java
index f11efd0d1..96159c1bd 100644
--- a/src/main/java/de/pixart/messenger/ui/util/Attachment.java
+++ b/src/main/java/de/pixart/messenger/ui/util/Attachment.java
@@ -37,6 +37,7 @@ import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Log;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -61,12 +62,21 @@ public class Attachment implements Parcelable {
     private final Type type;
     private final UUID uuid;
     private final String mime;
+
     Attachment(Parcel in) {
         uri = in.readParcelable(Uri.class.getClassLoader());
         mime = in.readString();
         uuid = UUID.fromString(in.readString());
         type = Type.valueOf(in.readString());
     }
+
+    private Attachment(UUID uuid, Uri uri, Type type, String mime) {
+        this.uri = uri;
+        this.type = type;
+        this.mime = mime;
+        this.uuid = uuid;
+    }
+
     private Attachment(Uri uri, Type type, String mime) {
         this.uri = uri;
         this.type = type;
@@ -88,6 +98,10 @@ public class Attachment implements Parcelable {
         return attachments;
     }
 
+    public static Attachment of(UUID uuid, final File file, String mime) {
+        return new Attachment(uuid, Uri.fromFile(file), mime != null && (mime.startsWith("image/") || mime.startsWith("video/")) ? Type.IMAGE : Type.FILE, mime);
+    }
+
     public static List<Attachment> extractAttachments(final Context context, final Intent intent, Type type) {
         List<Attachment> uris = new ArrayList<>();
         if (intent == null) {
diff --git a/src/main/java/de/pixart/messenger/ui/util/GridManager.java b/src/main/java/de/pixart/messenger/ui/util/GridManager.java
new file mode 100644
index 000000000..717fef526
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/GridManager.java
@@ -0,0 +1,71 @@
+package de.pixart.messenger.ui.util;
+
+import android.content.Context;
+import android.support.annotation.DimenRes;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.ViewTreeObserver;
+
+import de.pixart.messenger.Config;
+import de.pixart.messenger.ui.adapter.MediaAdapter;
+
+public class GridManager {
+
+    public static void setupLayoutManager(final Context context, RecyclerView recyclerView, @DimenRes int desiredSize) {
+        int maxWidth = context.getResources().getDisplayMetrics().widthPixels;
+        ColumnInfo columnInfo = calculateColumnCount(context, maxWidth, desiredSize);
+        Log.d(Config.LOGTAG, "preliminary count=" + columnInfo.count);
+        MediaAdapter.setMediaSize(recyclerView, columnInfo.width);
+        recyclerView.setLayoutManager(new GridLayoutManager(context, columnInfo.count));
+        recyclerView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+            @Override
+            public void onGlobalLayout() {
+                recyclerView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+                final ColumnInfo columnInfo = calculateColumnCount(context, recyclerView.getMeasuredWidth(), desiredSize);
+                Log.d(Config.LOGTAG, "final count " + columnInfo.count);
+                if (recyclerView.getAdapter().getItemCount() != 0) {
+                    Log.e(Config.LOGTAG, "adapter already has items; just go with it now");
+                    return;
+                }
+                setupLayoutManagerInternal(recyclerView, columnInfo);
+                MediaAdapter.setMediaSize(recyclerView, columnInfo.width);
+            }
+        });
+    }
+
+    private static void setupLayoutManagerInternal(RecyclerView recyclerView, final ColumnInfo columnInfo) {
+        RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
+        if (layoutManager instanceof GridLayoutManager) {
+            ((GridLayoutManager) layoutManager).setSpanCount(columnInfo.count);
+        }
+    }
+
+    private static ColumnInfo calculateColumnCount(Context context, int availableWidth, @DimenRes int desiredSize) {
+        final float desiredWidth = context.getResources().getDimension(desiredSize);
+        final int columns = Math.round(availableWidth / desiredWidth);
+        final int realWidth = availableWidth / columns;
+        Log.d(Config.LOGTAG, "desired=" + desiredWidth + " real=" + realWidth);
+        return new ColumnInfo(columns, realWidth);
+    }
+
+    public static int getCurrentColumnCount(RecyclerView recyclerView) {
+        RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
+        if (layoutManager instanceof GridLayoutManager) {
+            return ((GridLayoutManager) layoutManager).getSpanCount();
+        } else {
+            return 0;
+        }
+    }
+
+    public static class ColumnInfo {
+        private final int count;
+        private final int width;
+
+        private ColumnInfo(int count, int width) {
+            this.count = count;
+            this.width = width;
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/ViewUtil.java b/src/main/java/de/pixart/messenger/ui/util/ViewUtil.java
new file mode 100644
index 000000000..2442df8dc
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/ViewUtil.java
@@ -0,0 +1,50 @@
+package de.pixart.messenger.ui.util;
+
+import android.content.ActivityNotFoundException;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.io.File;
+import java.util.List;
+
+import de.pixart.messenger.Config;
+import de.pixart.messenger.R;
+import de.pixart.messenger.persistance.FileBackend;
+
+public class ViewUtil {
+
+    public static void view(Context context, Attachment attachment) {
+        File file = new File(attachment.getUri().getPath());
+        final String mime = attachment.getMime() == null ? "*/*" : attachment.getMime();
+        view(context, file, mime);
+    }
+
+    public static void view(Context context, File file, String mime) {
+        Intent openIntent = new Intent(Intent.ACTION_VIEW);
+        Uri uri;
+        try {
+            uri = FileBackend.getUriForFile(context, file);
+        } catch (SecurityException e) {
+            Log.d(Config.LOGTAG, "No permission to access " + file.getAbsolutePath(), e);
+            Toast.makeText(context, context.getString(R.string.no_permission_to_access_x, file.getAbsolutePath()), Toast.LENGTH_SHORT).show();
+            return;
+        }
+        openIntent.setDataAndType(uri, mime);
+        openIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        PackageManager manager = context.getPackageManager();
+        List<ResolveInfo> info = manager.queryIntentActivities(openIntent, 0);
+        if (info.size() == 0) {
+            openIntent.setDataAndType(uri, "*/*");
+        }
+        try {
+            context.startActivity(openIntent);
+        } catch (ActivityNotFoundException e) {
+            Toast.makeText(context, R.string.no_application_found_to_open_file, Toast.LENGTH_SHORT).show();
+        }
+    }
+}
\ No newline at end of file