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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import org.mozilla.gecko.animation.AnimationUtils;
import org.mozilla.gecko.menu.GeckoMenu;
import org.mozilla.gecko.widget.GeckoPopupMenu;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.LinearLayout;
class ActionModeCompatView extends LinearLayout implements GeckoMenu.ActionItemBarPresenter {
private final String LOGTAG = "GeckoActionModeCompatPresenter";
private static final int SPEC = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
private Button mTitleView;
private ImageButton mMenuButton;
private ViewGroup mActionButtonBar;
private GeckoPopupMenu mPopupMenu;
// Maximum number of items to show as actions
private static final int MAX_ACTION_ITEMS = 4;
private int mActionButtonsWidth;
private Paint mBottomDividerPaint;
private int mBottomDividerOffset;
public ActionModeCompatView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context, attrs, 0);
}
public ActionModeCompatView(Context context, AttributeSet attrs, int style) {
super(context, attrs, style);
init(context, attrs, style);
}
public void init(final Context context, final AttributeSet attrs, final int defStyle) {
LayoutInflater.from(context).inflate(R.layout.actionbar, this);
mTitleView = (Button) findViewById(R.id.actionmode_title);
mMenuButton = (ImageButton) findViewById(R.id.actionbar_menu);
mActionButtonBar = (ViewGroup) findViewById(R.id.actionbar_buttons);
mPopupMenu = new GeckoPopupMenu(getContext(), mMenuButton);
mPopupMenu.getMenu().setActionItemBarPresenter(this);
mMenuButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
openMenu();
}
});
// The built-in action bar uses colorAccent for the divider so we duplicate that here.
final TypedArray arr = context.obtainStyledAttributes(attrs, new int[] { R.attr.colorAccent }, defStyle, 0);
final int bottomDividerColor = arr.getColor(0, 0);
arr.recycle();
mBottomDividerPaint = new Paint();
mBottomDividerPaint.setColor(bottomDividerColor);
mBottomDividerOffset = getResources().getDimensionPixelSize(R.dimen.action_bar_divider_height);
}
public void initForMode(final ActionModeCompat mode) {
mTitleView.setOnClickListener(mode);
mPopupMenu.setOnMenuItemClickListener(mode);
mPopupMenu.setOnMenuItemLongClickListener(mode);
}
public CharSequence getTitle() {
return mTitleView.getText();
}
public void setTitle(CharSequence title) {
mTitleView.setText(title);
}
public void setTitle(int resId) {
mTitleView.setText(resId);
}
public GeckoMenu getMenu() {
return mPopupMenu.getMenu();
}
@Override
public void invalidate() {
// onFinishInflate may not have been called yet on some versions of Android
if (mPopupMenu != null && mMenuButton != null) {
mMenuButton.setVisibility(mPopupMenu.getMenu().hasVisibleItems() ? View.VISIBLE : View.GONE);
}
super.invalidate();
}
/* GeckoMenu.ActionItemBarPresenter */
@Override
public boolean addActionItem(View actionItem) {
final int count = mActionButtonBar.getChildCount();
if (count >= MAX_ACTION_ITEMS) {
return false;
}
int maxWidth = mActionButtonBar.getMeasuredWidth();
if (maxWidth == 0) {
mActionButtonBar.measure(SPEC, SPEC);
maxWidth = mActionButtonBar.getMeasuredWidth();
}
// If the menu button is already visible, no need to account for it
if (mMenuButton.getVisibility() == View.GONE) {
// Since we don't know how many items will be added, we always reserve space for the overflow menu
mMenuButton.measure(SPEC, SPEC);
maxWidth -= mMenuButton.getMeasuredWidth();
}
if (mActionButtonsWidth <= 0) {
mActionButtonsWidth = 0;
// Loop over child views, measure them, and add their width to the taken width
for (int i = 0; i < count; i++) {
View v = mActionButtonBar.getChildAt(i);
v.measure(SPEC, SPEC);
mActionButtonsWidth += v.getMeasuredWidth();
}
}
actionItem.measure(SPEC, SPEC);
int w = actionItem.getMeasuredWidth();
if (mActionButtonsWidth + w < maxWidth) {
// We cache the new width of our children.
mActionButtonsWidth += w;
mActionButtonBar.addView(actionItem);
return true;
}
return false;
}
/* GeckoMenu.ActionItemBarPresenter */
@Override
public void removeActionItem(View actionItem) {
actionItem.measure(SPEC, SPEC);
mActionButtonsWidth -= actionItem.getMeasuredWidth();
mActionButtonBar.removeView(actionItem);
}
public void openMenu() {
mPopupMenu.openMenu();
}
public void closeMenu() {
mPopupMenu.dismiss();
}
public void animateIn() {
long duration = AnimationUtils.getShortDuration(getContext());
TranslateAnimation t = new TranslateAnimation(Animation.RELATIVE_TO_SELF, -0.5f, Animation.RELATIVE_TO_SELF, 0f,
Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f);
t.setDuration(duration);
ScaleAnimation s = new ScaleAnimation(1f, 1f, 0f, 1f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
s.setDuration((long) (duration * 1.5f));
mTitleView.startAnimation(t);
mActionButtonBar.startAnimation(s);
if ((mMenuButton.getVisibility() == View.VISIBLE) &&
(mPopupMenu.getMenu().size() > 0)) {
mMenuButton.startAnimation(s);
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// Draw the divider at the bottom of the screen. We could do this with a layer-list
// but then we'd have overdraw (http://stackoverflow.com/a/13509472).
final int bottom = getHeight();
final int top = bottom - mBottomDividerOffset;
canvas.drawRect(0, top, getWidth(), bottom, mBottomDividerPaint);
}
}
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