src/com/android/camera/MenuHelper.java

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.camera;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Handler;
import android.provider.MediaStore;
import android.util.Config;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.view.MenuItem.OnMenuItemClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;

import com.android.camera.ImageManager.IImage;

public class MenuHelper {
    static private final String TAG = "MenuHelper";

    static public final int GENERIC_ITEM      = 1;
    static public final int IMAGE_SAVING_ITEM = 2;
    static public final int VIDEO_SAVING_ITEM = 3;
    static public final int IMAGE_MODE_ITEM   = 4;
    static public final int VIDEO_MODE_ITEM   = 5;
    static public final int MENU_ITEM_MAX     = 5;

    static public final int INCLUDE_ALL           = 0xFFFFFFFF;
    static public final int INCLUDE_VIEWPLAY_MENU = (1 << 0);
    static public final int INCLUDE_SHARE_MENU    = (1 << 1);
    static public final int INCLUDE_SET_MENU      = (1 << 2);
    static public final int INCLUDE_CROP_MENU     = (1 << 3);
    static public final int INCLUDE_DELETE_MENU   = (1 << 4);
    static public final int INCLUDE_ROTATE_MENU   = (1 << 5);
    static public final int INCLUDE_DETAILS_MENU   = (1 << 5);

    static public final int MENU_SWITCH_CAMERA_MODE = 0;
    static public final int MENU_CAPTURE_PICTURE = 1;
    static public final int MENU_CAPTURE_VIDEO = 2;
    static public final int MENU_IMAGE_SHARE = 10;
    static public final int MENU_IMAGE_SET = 14;
    static public final int MENU_IMAGE_SET_WALLPAPER = 15;
    static public final int MENU_IMAGE_SET_CONTACT = 16;
    static public final int MENU_IMAGE_SET_MYFAVE = 17;
    static public final int MENU_IMAGE_CROP = 18;
    static public final int MENU_IMAGE_ROTATE = 19;
    static public final int MENU_IMAGE_ROTATE_LEFT = 20;
    static public final int MENU_IMAGE_ROTATE_RIGHT = 21;
    static public final int MENU_IMAGE_TOSS = 22;
    static public final int MENU_VIDEO_PLAY = 23;
    static public final int MENU_VIDEO_SHARE = 24;
    static public final int MENU_VIDEO_TOSS = 27;

    public interface MenuItemsResult {
        public void gettingReadyToOpen(Menu menu, ImageManager.IImage image);
        public void aboutToCall(MenuItem item, ImageManager.IImage image);
    }

    public interface MenuInvoker {
        public void run(MenuCallback r);
    }

    public interface MenuCallback {
        public void run(Uri uri, ImageManager.IImage image);
    }

    static MenuItemsResult addImageMenuItems(
            Menu menu,
            int inclusions,
            final boolean isImage,
            final Activity activity,
            final Handler handler,
            final Runnable onDelete,
            final MenuInvoker onInvoke) {
        final ArrayList<MenuItem> requiresWriteAccessItems = new ArrayList<MenuItem>();
        final ArrayList<MenuItem> requiresNoDrmAccessItems = new ArrayList<MenuItem>();

        if (isImage && ((inclusions & INCLUDE_ROTATE_MENU) != 0)) {
            SubMenu rotateSubmenu = menu.addSubMenu(IMAGE_SAVING_ITEM, MENU_IMAGE_ROTATE,
                    40, R.string.rotate).setIcon(android.R.drawable.ic_menu_rotate);
            // Don't show the rotate submenu if the item at hand is read only
            // since the items within the submenu won't be shown anyway.  This is
            // really a framework bug in that it shouldn't show the submenu if
            // the submenu has no visible items.
            requiresWriteAccessItems.add(rotateSubmenu.getItem());
            if (rotateSubmenu != null) {
                requiresWriteAccessItems.add(rotateSubmenu.add(0, MENU_IMAGE_ROTATE_LEFT, 50, R.string.rotate_left).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                    public boolean onMenuItemClick(MenuItem item) {
                        onInvoke.run(new MenuCallback() {
                            public void run(Uri u, ImageManager.IImage image) {
                                if (image == null || image.isReadonly())
                                    return;
                                image.rotateImageBy(-90);
                            }
                        });
                        return true;
                    }
                }).setAlphabeticShortcut('l'));
                requiresWriteAccessItems.add(rotateSubmenu.add(0, MENU_IMAGE_ROTATE_RIGHT, 60, R.string.rotate_right).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                    public boolean onMenuItemClick(MenuItem item) {
                        onInvoke.run(new MenuCallback() {
                            public void run(Uri u, ImageManager.IImage image) {
                                if (image == null || image.isReadonly())
                                    return;

                                image.rotateImageBy(90);
                            }
                        });
                        return true;
                    }
                }).setAlphabeticShortcut('r'));
            }
        }

        if (isImage && ((inclusions & INCLUDE_CROP_MENU) != 0)) {
            MenuItem autoCrop = menu.add(IMAGE_SAVING_ITEM, MENU_IMAGE_CROP, 73,
                    R.string.camera_crop).setOnMenuItemClickListener(
                            new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    onInvoke.run(new MenuCallback() {
                        public void run(Uri u, ImageManager.IImage image) {
                            if (u == null)
                                return;

                            Intent cropIntent = new Intent();
                            cropIntent.setClass(activity, CropImage.class);
                            cropIntent.setData(u);
                            activity.startActivity(cropIntent);
                        }
                    });
                    return true;
                }
            });
            autoCrop.setIcon(android.R.drawable.ic_menu_crop);
            requiresWriteAccessItems.add(autoCrop);
        }

        if (isImage && ((inclusions & INCLUDE_SET_MENU) != 0)) {
            MenuItem setMenu = menu.add(IMAGE_SAVING_ITEM, MENU_IMAGE_SET, 75, R.string.camera_set);
            setMenu.setIcon(android.R.drawable.ic_menu_set_as);

            setMenu.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    onInvoke.run(new MenuCallback() {
                        public void run(Uri u, ImageManager.IImage image) {
                            if (u == null || image == null)
                                return;

                            if (Config.LOGV)
                                Log.v(TAG, "in callback u is " + u + "; mime type is " + image.getMimeType());
                            Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
                            intent.setDataAndType(u, image.getMimeType());
                            intent.putExtra("mimeType", image.getMimeType());
                            activity.startActivity(Intent.createChooser(intent, activity.getText(R.string.setImage)));
                        }
                    });
                    return true;
                }
            });
        }

        if ((inclusions & INCLUDE_SHARE_MENU) != 0) {
            if (Config.LOGV)
                Log.v(TAG, ">>>>> add share");
            MenuItem item1 = menu.add(IMAGE_SAVING_ITEM, MENU_IMAGE_SHARE, 10,
                    R.string.camera_share).setOnMenuItemClickListener(
                    new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    onInvoke.run(new MenuCallback() {
                        public void run(Uri u, ImageManager.IImage image) {
                            if (image == null)
                                return;
                            Intent intent = new Intent();
                            intent.setAction(Intent.ACTION_SEND);
                            String mimeType = image.getMimeType();
                            intent.setType(mimeType);
                            intent.putExtra(Intent.EXTRA_STREAM, u);
                            boolean isImage = ImageManager.isImageMimeType(mimeType);
                            try {
                                activity.startActivity(Intent.createChooser(intent,
                                        activity.getText(
                                                isImage ? R.string.sendImage : R.string.sendVideo)));
                            } catch (android.content.ActivityNotFoundException ex) {
                                Toast.makeText(activity,
                                        isImage ? R.string.no_way_to_share_image
                                                : R.string.no_way_to_share_video,
                                                Toast.LENGTH_SHORT).show();
                            }
                        }
                    });
                    return true;
                }
            });
            item1.setIcon(android.R.drawable.ic_menu_share);
            MenuItem item = item1;
            requiresNoDrmAccessItems.add(item);
        }

        if ((inclusions & INCLUDE_DELETE_MENU) != 0) {
            MenuItem deleteItem = menu.add(IMAGE_SAVING_ITEM, MENU_IMAGE_TOSS, 70, R.string.camera_toss);
            requiresWriteAccessItems.add(deleteItem);
            deleteItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    deleteImageImpl(activity, onDelete, isImage);
                    return true;
                }
            })
            .setAlphabeticShortcut('d')
            .setIcon(android.R.drawable.ic_menu_delete);
        }

        if ((inclusions & INCLUDE_DETAILS_MENU) != 0) {
            MenuItem detailsMenu = menu.add(0, 0, 80, R.string.details).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    onInvoke.run(new MenuCallback() {
                        public void run(Uri u, ImageManager.IImage image) {
                            if (image == null)
                                return;

                            AlertDialog.Builder builder = new AlertDialog.Builder(activity);

                            final View d = View.inflate(activity, R.layout.detailsview, null);

                            ImageView imageView = (ImageView) d.findViewById(R.id.details_thumbnail_image);
                            imageView.setImageBitmap(image.miniThumbBitmap());

                            TextView textView = (TextView) d.findViewById(R.id.details_image_title);
                            textView.setText(image.getDisplayName());

                            java.io.InputStream data = image.fullSizeImageData();
                            String lengthString = "";
                            try {
                                long length = data.available();
                                lengthString =
                                    android.text.format.Formatter.formatFileSize(activity, length);
                                data.close();
                            } catch (java.io.IOException ex) {

                            } finally {
                            }
                            ((TextView)d.findViewById(R.id.details_attrname_1)).setText(R.string.details_file_size);
                            ((TextView)d.findViewById(R.id.details_attrvalu_1)).setText(lengthString);

                            if (isImage) {
                                String dimensionsString = String.valueOf(image.getWidth() + " X " + image.getHeight());
                                ((TextView)d.findViewById(R.id.details_attrname_2)).setText(R.string.details_image_resolution);
                                ((TextView)d.findViewById(R.id.details_attrvalu_2)).setText(dimensionsString);
                            } else {
                                d.findViewById(R.id.details_attrname_2).setVisibility(View.GONE);
                                d.findViewById(R.id.details_attrvalu_2).setVisibility(View.GONE);
                            }

                            String dateString = "";
                            long dateTaken = image.getDateTaken();
                            if (dateTaken != 0) {
                                java.util.Date date = new java.util.Date(image.getDateTaken());
                                java.text.SimpleDateFormat dateFormat = new java.text.SimpleDateFormat();
                                dateString = dateFormat.format(date);

                                ((TextView)d.findViewById(R.id.details_attrname_3)).setText(R.string.details_date_taken);
                                ((TextView)d.findViewById(R.id.details_attrvalu_3)).setText(dateString);
                            } else {
                                d.findViewById(R.id.details_daterow).setVisibility(View.GONE);
                            }


                            builder.setIcon(android.R.drawable.ic_dialog_info)
                                .setTitle(R.string.details_panel_title)
                                .setView(d)
                                .show();

                        }
                    });
                    return true;
                }
            });
            detailsMenu.setIcon(R.drawable.ic_menu_view_details);
        }

        if ((!isImage) && ((inclusions & INCLUDE_VIEWPLAY_MENU) != 0)) {
            menu.add(VIDEO_SAVING_ITEM, MENU_VIDEO_PLAY, 0, R.string.video_play)
                .setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    onInvoke.run(new MenuCallback() {
                        public void run(Uri uri, IImage image) {
                            Intent intent = new Intent(Intent.ACTION_VIEW,
                                    image.fullSizeImageUri());
                            activity.startActivity(intent);
                        }});
                    return true;
                }
            });
        }


        return new MenuItemsResult() {
            public void gettingReadyToOpen(Menu menu, ImageManager.IImage image) {
                // protect against null here.  this isn't strictly speaking required
                // but if a client app isn't handling sdcard removal properly it
                // could happen
                if (image == null) {
                    return;
                }
                boolean readOnly = image.isReadonly();
                boolean isDrm = image.isDrm();
                if (Config.LOGV)
                    Log.v(TAG, "readOnly: " + readOnly + "; drm: " + isDrm);
                for (MenuItem item: requiresWriteAccessItems) {
                    if (Config.LOGV)
                        Log.v(TAG, "item is " + item.toString());
                      item.setVisible(!readOnly);
                      item.setEnabled(!readOnly);
                }
                for (MenuItem item: requiresNoDrmAccessItems) {
                    if (Config.LOGV)
                        Log.v(TAG, "item is " + item.toString());
                      item.setVisible(!isDrm);
                      item.setEnabled(!isDrm);
                }
            }
            public void aboutToCall(MenuItem menu, ImageManager.IImage image) {
            }
        };
    }

    static void deletePhoto(Activity activity, Runnable onDelete) {
        deleteImageImpl(activity, onDelete, true);
    }

    static void deleteImage(Activity activity, Runnable onDelete, IImage image) {
        deleteImageImpl(activity, onDelete, ImageManager.isImage(image));
    }

    private static void deleteImageImpl(Activity activity, final Runnable onDelete, boolean isPhoto) {
        boolean confirm = android.preference.PreferenceManager.getDefaultSharedPreferences(activity).getBoolean("pref_gallery_confirm_delete_key", true);
        if (!confirm) {
            if (onDelete != null)
                onDelete.run();
        } else {
            android.app.AlertDialog.Builder b = new android.app.AlertDialog.Builder(activity);
            b.setIcon(android.R.drawable.ic_dialog_alert);
            b.setTitle(R.string.confirm_delete_title);
            b.setMessage(isPhoto? R.string.confirm_delete_message
                    : R.string.confirm_delete_video_message);
            b.setPositiveButton(android.R.string.ok, new android.content.DialogInterface.OnClickListener() {
                public void onClick(android.content.DialogInterface v, int x) {
                    if (onDelete != null)
                        onDelete.run();
                }
            });
            b.setNegativeButton(android.R.string.cancel, new android.content.DialogInterface.OnClickListener() {
                public void onClick(android.content.DialogInterface v, int x) {

                }
            });
            b.create().show();
        }
    }

    static void addSwitchModeMenuItem(Menu menu, final Activity activity,
            final boolean switchToVideo) {
        int group = switchToVideo ? MenuHelper.IMAGE_MODE_ITEM : MenuHelper.VIDEO_MODE_ITEM;
        int labelId = switchToVideo ? R.string.switch_to_video_lable
                : R.string.switch_to_camera_lable;
        int iconId = switchToVideo ? R.drawable.ic_menu_camera_video_view
                : R.drawable.ic_menu_camera;
        MenuItem item = menu.add(group, MENU_SWITCH_CAMERA_MODE, 0,
                labelId).setOnMenuItemClickListener(
                        new OnMenuItemClickListener() {
            public boolean onMenuItemClick(MenuItem item) {
                String action = switchToVideo ? MediaStore.INTENT_ACTION_VIDEO_CAMERA
                        : MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA;
                Intent intent = new Intent(action);
                intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
                activity.finish();
                activity.startActivity(intent);
                return true;
             }
        });
        item.setIcon(iconId);
    }

    static void addCaptureMenuItems(Menu menu, final Activity activity) {

        menu.add(0, MENU_CAPTURE_PICTURE, 1, R.string.capture_picture)
            .setOnMenuItemClickListener(
                 new MenuItem.OnMenuItemClickListener() {
                     public boolean onMenuItemClick(MenuItem item) {
                        Intent intent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
                        try {
                               activity.startActivity(intent);
                        } catch (android.content.ActivityNotFoundException e) {
                            // Ignore exception
                        }
                return true;
            }
        })
        .setIcon(R.drawable.ic_menu_camera);

        menu.add(0, MENU_CAPTURE_VIDEO, 2, R.string.capture_video)
            .setOnMenuItemClickListener(
                 new MenuItem.OnMenuItemClickListener() {
                     public boolean onMenuItemClick(MenuItem item) {
                         Intent intent = new Intent(MediaStore.INTENT_ACTION_VIDEO_CAMERA);
                         try {
                             activity.startActivity(intent);
                         } catch (android.content.ActivityNotFoundException e) {
                             // Ignore exception
                         }
                return true;
            }
        })
        .setIcon(R.drawable.ic_menu_camera_video_view);
    }
    static MenuItem addFlipOrientation(Menu menu, final Activity activity, final SharedPreferences prefs) {
        // position 41 after rotate
        return menu
                .add(Menu.CATEGORY_SECONDARY, 304, 41, R.string.flip_orientation)
                .setOnMenuItemClickListener(
                        new MenuItem.OnMenuItemClickListener() {
            public boolean onMenuItemClick(MenuItem item) {
                int current = activity.getRequestedOrientation();
                int newOrientation = android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
                if (current == android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) {
                    newOrientation = android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
                }
                SharedPreferences.Editor editor = prefs.edit();
                editor.putInt("nuorientation", newOrientation);
                editor.commit();
                requestOrientation(activity, prefs);
                return true;
            }
        })
        .setIcon(android.R.drawable.ic_menu_always_landscape_portrait);
    }

    static void requestOrientation(Activity activity, SharedPreferences prefs) {
        int req = prefs.getInt("nuorientation",
                android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
        // A little trick: use USER instead of UNSPECIFIED, so we ignore the
        // orientation set by the activity below.  It may have forced a landscape
        // orientation, which the user has now cleared here.
        activity.setRequestedOrientation(
                req == android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
                        ? android.content.pm.ActivityInfo.SCREEN_ORIENTATION_USER
                        : req);
    }
}