src/eu/alefzero/owncloud/QuickAction.java

   1 package eu.alefzero.owncloud;
   2
   3 import android.content.Context;
   4
   5 import android.graphics.Rect;
   6 import android.graphics.drawable.Drawable;
   7
   8 import android.widget.ImageView;
   9 import android.widget.TextView;
  10 import android.widget.LinearLayout;
  11 import android.widget.ScrollView;
  12
  13 import android.view.Gravity;
  14 import android.view.LayoutInflater;
  15 import android.view.View;
  16 import android.view.View.OnClickListener;
  17 import android.view.ViewGroup.LayoutParams;
  18 import android.view.ViewGroup;
  19
  20 import java.util.ArrayList;
  21
  22 /**
  23  * Popup window, shows action list as icon and text like the one in Gallery3D app.
  24  *
  25  * @author Lorensius. W. T
  26  */
  27 public class QuickAction extends CustomPopup {
  28         private final View root;
  29         private final ImageView mArrowUp;
  30         private final ImageView mArrowDown;
  31         private final LayoutInflater inflater;
  32         private final Context context;
  33
  34         protected static final int ANIM_GROW_FROM_LEFT = 1;
  35         protected static final int ANIM_GROW_FROM_RIGHT = 2;
  36         protected static final int ANIM_GROW_FROM_CENTER = 3;
  37         protected static final int ANIM_REFLECT = 4;
  38         protected static final int ANIM_AUTO = 5;
  39
  40         private int animStyle;
  41         private ViewGroup mTrack;
  42         private ScrollView scroller;
  43         private ArrayList<ActionItem> actionList;
  44
  45         /**
  46          * Constructor
  47          *
  48          * @param anchor {@link View} on where the popup window should be displayed
  49          */
  50         public QuickAction(View anchor) {
  51                 super(anchor);
  52
  53                 actionList      = new ArrayList<ActionItem>();
  54                 context         = anchor.getContext();
  55                 inflater        = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  56
  57                 root            = (ViewGroup) inflater.inflate(R.layout.popup, null);
  58
  59                 mArrowDown      = (ImageView) root.findViewById(R.id.arrow_down);
  60                 mArrowUp        = (ImageView) root.findViewById(R.id.arrow_up);
  61
  62                 setContentView(root);
  63
  64                 mTrack                  = (ViewGroup) root.findViewById(R.id.tracks);
  65                 scroller                = (ScrollView) root.findViewById(R.id.scroller);
  66                 animStyle               = ANIM_AUTO;
  67         }
  68
  69         /**
  70          * Set animation style
  71          *
  72          * @param animStyle animation style, default is set to ANIM_AUTO
  73          */
  74         public void setAnimStyle(int animStyle) {
  75                 this.animStyle = animStyle;
  76         }
  77
  78         /**
  79          * Add action item
  80          *
  81          * @param action  {@link ActionItem} object
  82          */
  83         public void addActionItem(ActionItem action) {
  84                 actionList.add(action);
  85         }
  86
  87         /**
  88          * Show popup window. Popup is automatically positioned, on top or bottom of anchor view.
  89          *
  90          */
  91         public void show () {
  92                 preShow();
  93
  94                 int xPos, yPos;
  95
  96                 int[] location          = new int[2];
  97
  98                 mAnchor.getLocationOnScreen(location);
  99
 100                 Rect anchorRect         = new Rect(location[0], location[1], location[0] + mAnchor.getWidth(), location[1]
 101                                         + mAnchor.getHeight());
 102
 103                 createActionList();
 104
 105                 root.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
 106                 root.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
 107
 108                 int rootHeight          = root.getMeasuredHeight();
 109                 int rootWidth           = root.getMeasuredWidth();
 110
 111                 int screenWidth         = mWManager.getDefaultDisplay().getWidth();
 112                 int screenHeight        = mWManager.getDefaultDisplay().getHeight();
 113
 114                 //automatically get X coord of popup (top left)
 115                 if ((anchorRect.left + rootWidth) > screenWidth) {
 116                         xPos = anchorRect.left - (rootWidth-mAnchor.getWidth());
 117                 } else {
 118                         if (mAnchor.getWidth() > rootWidth) {
 119                                 xPos = anchorRect.centerX() - (rootWidth/2);
 120                         } else {
 121                                 xPos = anchorRect.left;
 122                         }
 123                 }
 124
 125                 int dyTop                       = anchorRect.top;
 126                 int dyBottom            = screenHeight - anchorRect.bottom;
 127
 128                 boolean onTop           = (dyTop > dyBottom) ? true : false;
 129
 130                 if (onTop) {
 131                         if (rootHeight > dyTop) {
 132                                 yPos                    = 15;
 133                                 LayoutParams l  = scroller.getLayoutParams();
 134                                 l.height                = dyTop - mAnchor.getHeight();
 135                         } else {
 136                                 yPos = anchorRect.top - rootHeight;
 137                         }
 138                 } else {
 139                         yPos = anchorRect.bottom;
 140
 141                         if (rootHeight > dyBottom) {
 142                                 LayoutParams l  = scroller.getLayoutParams();
 143                                 l.height                = dyBottom;
 144                         }
 145                 }
 146
 147                 showArrow(((onTop) ? R.id.arrow_down : R.id.arrow_up), anchorRect.centerX()-xPos);
 148
 149                 setAnimationStyle(screenWidth, anchorRect.centerX(), onTop);
 150
 151                 mWindow.showAtLocation(mAnchor, Gravity.NO_GRAVITY, xPos, yPos);
 152         }
 153
 154         /**
 155          * Set animation style
 156          *
 157          * @param screenWidth screen width
 158          * @param requestedX distance from left edge
 159          * @param onTop flag to indicate where the popup should be displayed. Set TRUE if displayed on top of anchor view
 160          *                and vice versa
 161          */
 162         private void setAnimationStyle(int screenWidth, int requestedX, boolean onTop) {
 163                 int arrowPos = requestedX - mArrowUp.getMeasuredWidth()/2;
 164
 165                 switch (animStyle) {
 166                 case ANIM_GROW_FROM_LEFT:
 167                         mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
 168                         break;
 169
 170                 case ANIM_GROW_FROM_RIGHT:
 171                         mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Right : R.style.Animations_PopDownMenu_Right);
 172                         break;
 173
 174                 case ANIM_GROW_FROM_CENTER:
 175                         mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
 176                 break;
 177
 178                 case ANIM_REFLECT:
 179                         mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Reflect : R.style.Animations_PopDownMenu_Reflect);
 180                 break;
 181
 182                 case ANIM_AUTO:
 183                         if (arrowPos <= screenWidth/4) {
 184                                 mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
 185                         } else if (arrowPos > screenWidth/4 && arrowPos < 3 * (screenWidth/4)) {
 186                                 mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
 187                         } else {
 188                                 mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Right : R.style.Animations_PopDownMenu_Right);
 189                         }
 190
 191                         break;
 192                 }
 193         }
 194
 195         /**
 196          * Create action list
 197          */
 198         private void createActionList() {
 199                 View view;
 200                 String title;
 201                 Drawable icon;
 202                 OnClickListener listener;
 203
 204                 for (int i = 0; i < actionList.size(); i++) {
 205                         title           = actionList.get(i).getTitle();
 206                         icon            = actionList.get(i).getIcon();
 207                         listener        = actionList.get(i).getOnClickListerner();
 208
 209                         view            = getActionItem(title, icon, listener);
 210
 211                         view.setFocusable(true);
 212                         view.setClickable(true);
 213
 214                         mTrack.addView(view);
 215                 }
 216         }
 217
 218         /**
 219          * Get action item {@link View}
 220          *
 221          * @param title action item title
 222          * @param icon {@link Drawable} action item icon
 223          * @param listener {@link View.OnClickListener} action item listener
 224          * @return action item {@link View}
 225          */
 226         private View getActionItem(String title, Drawable icon, OnClickListener listener) {
 227                 LinearLayout container  = (LinearLayout) inflater.inflate(R.layout.action_item, null);
 228
 229                 ImageView img                   = (ImageView) container.findViewById(R.id.icon);
 230                 TextView text                   = (TextView) container.findViewById(R.id.title);
 231
 232                 if (icon != null) {
 233                         img.setImageDrawable(icon);
 234                 }
 235
 236                 if (title != null) {
 237                         text.setText(title);
 238                 }
 239
 240                 if (listener != null) {
 241                         container.setOnClickListener(listener);
 242                 }
 243
 244                 return container;
 245         }
 246
 247         /**
 248          * Show arrow
 249          *
 250          * @param whichArrow arrow type resource id
 251          * @param requestedX distance from left screen
 252          */
 253         private void showArrow(int whichArrow, int requestedX) {
 254         final View showArrow = (whichArrow == R.id.arrow_up) ? mArrowUp : mArrowDown;
 255         final View hideArrow = (whichArrow == R.id.arrow_up) ? mArrowDown : mArrowUp;
 256
 257         final int arrowWidth = mArrowUp.getMeasuredWidth();
 258
 259         showArrow.setVisibility(View.VISIBLE);
 260
 261         ViewGroup.MarginLayoutParams param = (ViewGroup.MarginLayoutParams)showArrow.getLayoutParams();
 262
 263         param.leftMargin = requestedX - arrowWidth / 2;
 264
 265         hideArrow.setVisibility(View.INVISIBLE);
 266     }
 267 }