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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
/* 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.menu;
import java.util.ArrayList;
import java.util.List;
import org.mozilla.gecko.R;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageButton;
import android.widget.LinearLayout;
/**
* This class is a container view for menu items that:
* * Shows text if there is enough space and there are
* no action buttons ({@link #mActionButtons}).
* * Shows an icon if there is not enough space for text,
* or there are action buttons.
*/
public class MenuItemSwitcherLayout extends LinearLayout
implements GeckoMenuItem.Layout,
View.OnClickListener {
private final MenuItemDefault mMenuItem;
private final MenuItemActionBar mMenuButton;
private final List<ImageButton> mActionButtons;
private final List<View.OnClickListener> mActionButtonListeners = new ArrayList<View.OnClickListener>();
public MenuItemSwitcherLayout(Context context) {
this(context, null);
}
public MenuItemSwitcherLayout(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.menuItemSwitcherLayoutStyle);
}
@TargetApi(14)
public MenuItemSwitcherLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs);
LayoutInflater.from(context).inflate(R.layout.menu_item_switcher_layout, this);
mMenuItem = (MenuItemDefault) findViewById(R.id.menu_item);
mMenuButton = (MenuItemActionBar) findViewById(R.id.menu_item_button);
mActionButtons = new ArrayList<ImageButton>();
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
final int width = right - left;
final View parent = (View) getParent();
final int parentPadding = parent.getPaddingLeft() + parent.getPaddingRight();
final int horizontalSpaceAvailableInParent = parent.getMeasuredWidth() - parentPadding;
// Check if there is another View sharing horizontal
// space with this View in the parent.
if (width < horizontalSpaceAvailableInParent || mActionButtons.size() != 0) {
// Use the icon.
mMenuItem.setVisibility(View.GONE);
mMenuButton.setVisibility(View.VISIBLE);
} else {
// Use the button.
mMenuItem.setVisibility(View.VISIBLE);
mMenuButton.setVisibility(View.GONE);
}
super.onLayout(changed, left, top, right, bottom);
}
@Override
public void initialize(GeckoMenuItem item) {
if (item == null) {
return;
}
mMenuItem.initialize(item);
mMenuButton.initialize(item);
setEnabled(item.isEnabled());
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
mMenuItem.setEnabled(enabled);
mMenuButton.setEnabled(enabled);
for (ImageButton button : mActionButtons) {
button.setEnabled(enabled);
button.setAlpha(enabled ? 255 : 99);
}
}
public void setMenuItemClickListener(View.OnClickListener listener) {
mMenuItem.setOnClickListener(listener);
mMenuButton.setOnClickListener(listener);
}
public void setMenuItemLongClickListener(View.OnLongClickListener listener) {
mMenuItem.setOnLongClickListener(listener);
mMenuButton.setOnLongClickListener(listener);
}
public void addActionButtonClickListener(View.OnClickListener listener) {
mActionButtonListeners.add(listener);
}
@Override
public void setShowIcon(boolean show) {
mMenuItem.setShowIcon(show);
}
public void setIcon(Drawable icon) {
mMenuItem.setIcon(icon);
mMenuButton.setIcon(icon);
}
public void setIcon(int icon) {
mMenuItem.setIcon(icon);
mMenuButton.setIcon(icon);
}
public void setTitle(CharSequence title) {
mMenuItem.setTitle(title);
mMenuButton.setContentDescription(title);
}
public void setSubMenuIndicator(boolean hasSubMenu) {
mMenuItem.setSubMenuIndicator(hasSubMenu);
}
public void addActionButton(Drawable drawable, CharSequence label) {
// If this is the first icon, retain the text.
// If not, make the menu item an icon.
final int count = mActionButtons.size();
mMenuItem.setVisibility(View.GONE);
mMenuButton.setVisibility(View.VISIBLE);
if (drawable != null) {
ImageButton button = new ImageButton(getContext(), null, R.attr.menuItemSecondaryActionBarStyle);
button.setImageDrawable(drawable);
button.setContentDescription(label);
button.setOnClickListener(this);
button.setTag(count);
final int height = (int) (getResources().getDimension(R.dimen.menu_item_row_height));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, height);
params.weight = 1.0f;
button.setLayoutParams(params);
// Place action buttons to the right of the actual menu item
mActionButtons.add(button);
addView(button, count + 1);
}
}
protected int getActionButtonCount() {
return mActionButtons.size();
}
@Override
public void onClick(View view) {
for (View.OnClickListener listener : mActionButtonListeners) {
listener.onClick(view);
}
}
/**
* Update the styles if this view is being used in the context menus.
*
* Ideally, we just use different layout files and styles to set this, but
* MenuItemSwitcherLayout is too integrated into GeckoActionProvider to provide
* an easy separation so instead I provide this hack. I'm sorry.
*/
public void initContextMenuStyles() {
final int defaultContextMenuPadding = getContext().getResources().getDimensionPixelOffset(
R.dimen.context_menu_item_horizontal_padding);
mMenuItem.setPadding(defaultContextMenuPadding, getPaddingTop(),
defaultContextMenuPadding, getPaddingBottom());
}
}
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