package vn.evolus.droidreader.widget;
import java.util.ArrayList;
import vn.evolus.droidreader.R;
import android.content.Context;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.Interpolator;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* Popup window, shows action list as icon and text (QuickContact / Twitter app).
*
* @author Lorensius. W. T
*/
public class QuickAction extends CustomPopupWindow {
private final View root;
private final ImageView mArrowUp;
private final ImageView mArrowDown;
private final Animation mTrackAnim;
private final LayoutInflater inflater;
private final Context context;
public static final int ANIM_GROW_FROM_LEFT = 1;
public static final int ANIM_GROW_FROM_RIGHT = 2;
public static final int ANIM_GROW_FROM_CENTER = 3;
public static final int ANIM_AUTO = 4;
private int animStyle;
private boolean animateTrack;
private ViewGroup mTrack;
private ArrayList<ActionItem> actionList;
/**
* Constructor
*
* @param anchor {@link View} on where the popup should be displayed
*/
public QuickAction(View anchor) {
super(anchor);
actionList = new ArrayList<ActionItem>();
context = anchor.getContext();
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
root = (ViewGroup) inflater.inflate(R.layout.quickaction, null);
mArrowDown = (ImageView) root.findViewById(R.id.arrow_down);
mArrowUp = (ImageView) root.findViewById(R.id.arrow_up);
setContentView(root);
mTrackAnim = AnimationUtils.loadAnimation(anchor.getContext(), R.anim.rail);
mTrackAnim.setInterpolator(new Interpolator() {
public float getInterpolation(float t) {
// Pushes past the target area, then snaps back into place.
// Equation for graphing: 1.2-((x*1.6)-1.1)^2
final float inner = (t * 1.55f) - 1.1f;
return 1.2f - inner * inner;
}
});
mTrack = (ViewGroup) root.findViewById(R.id.tracks);
animStyle = ANIM_AUTO;
animateTrack = true;
}
/**
* Animate track
*
* @param animateTrack flag to animate track
*/
public void animateTrack(boolean animateTrack) {
this.animateTrack = animateTrack;
}
/**
* Set animation style
*
* @param animStyle animation style, default is set to ANIM_AUTO
*/
public void setAnimStyle(int animStyle) {
this.animStyle = animStyle;
}
/**
* Add action item
*
* @param action {@link ActionItem}
*/
public void addActionItem(ActionItem action) {
actionList.add(action);
}
/**
* Show popup window
*/
public void show () {
preShow();
int[] location = new int[2];
anchor.getLocationOnScreen(location);
Rect anchorRect = new Rect(location[0], location[1], location[0] + anchor.getWidth(), location[1]
+ anchor.getHeight());
root.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
root.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
int rootWidth = root.getMeasuredWidth();
int rootHeight = root.getMeasuredHeight();
int screenWidth = windowManager.getDefaultDisplay().getWidth();
//int screenHeight = windowManager.getDefaultDisplay().getHeight();
int xPos = (screenWidth - rootWidth) / 2;
int yPos = anchorRect.top - rootHeight;
boolean onTop = true;
// display on bottom
if (rootHeight > anchorRect.top) {
yPos = anchorRect.bottom;
onTop = false;
}
showArrow(((onTop) ? R.id.arrow_down : R.id.arrow_up), anchorRect.centerX());
setAnimationStyle(screenWidth, anchorRect.centerX(), onTop);
createActionList();
window.showAtLocation(this.anchor, Gravity.NO_GRAVITY, xPos, yPos);
if (animateTrack) mTrack.startAnimation(mTrackAnim);
}
/**
* Set animation style
*
* @param screenWidth Screen width
* @param requestedX distance from left screen
* @param onTop flag to indicate where the popup should be displayed. Set TRUE if displayed on top of anchor and vice versa
*/
private void setAnimationStyle(int screenWidth, int requestedX, boolean onTop) {
int arrowPos = requestedX - mArrowUp.getMeasuredWidth()/2;
switch (animStyle) {
case ANIM_GROW_FROM_LEFT:
window.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
break;
case ANIM_GROW_FROM_RIGHT:
window.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Right : R.style.Animations_PopDownMenu_Right);
break;
case ANIM_GROW_FROM_CENTER:
window.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
break;
case ANIM_AUTO:
if (arrowPos <= screenWidth/4) {
window.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
} else if (arrowPos > screenWidth/4 && arrowPos < 3 * (screenWidth/4)) {
window.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
} else {
window.setAnimationStyle((onTop) ? R.style.Animations_PopDownMenu_Right : R.style.Animations_PopDownMenu_Right);
}
break;
}
}
/**
* Create action list
*
*/
private void createActionList() {
View view;
String title;
Drawable icon;
OnClickListener listener;
Object tag;
int index = 1;// 0: vertial, 1: horizontal
for (int i = 0; i < actionList.size(); i++) {
title = actionList.get(i).getTitle();
icon = actionList.get(i).getIcon();
listener = actionList.get(i).getListener();
tag = actionList.get(i).getTag();
view = getActionItem(title, icon, listener, tag);
view.setFocusable(true);
view.setClickable(true);
mTrack.addView(view, index);
view.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
index++;
}
}
/**
* Get action item {@link View}
*
* @param title action item title
* @param icon {@link Drawable} action item icon
* @param listener {@link View.OnClickListener} action item listener
* @return action item {@link View}
*/
private View getActionItem(String title, Drawable icon, OnClickListener listener, Object tag) {
LinearLayout container = (LinearLayout) inflater.inflate(R.layout.action_item, null);
ImageView img = (ImageView) container.findViewById(R.id.icon);
TextView text = (TextView) container.findViewById(R.id.title);
if (icon != null) {
img.setImageDrawable(icon);
} else {
img.setVisibility(View.GONE);
}
if (title != null) {
text.setText(title);
} else {
text.setVisibility(View.GONE);
}
if (listener != null) {
container.setOnClickListener(listener);
}
container.setTag(tag);
return container;
}
/**
* Show arrow
*
* @param whichArrow arrow type resource id
* @param requestedX distance from left screen
*/
private void showArrow(int whichArrow, int requestedX) {
final View showArrow = (whichArrow == R.id.arrow_up) ? mArrowUp : mArrowDown;
final View hideArrow = (whichArrow == R.id.arrow_up) ? mArrowDown : mArrowUp;
final int arrowWidth = mArrowUp.getMeasuredWidth();
showArrow.setVisibility(View.VISIBLE);
ViewGroup.MarginLayoutParams param = (ViewGroup.MarginLayoutParams)showArrow.getLayoutParams();
param.leftMargin = requestedX - arrowWidth / 2;
hideArrow.setVisibility(View.INVISIBLE);
}
}
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