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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.tabs;
import org.mozilla.gecko.AboutPages;
import org.mozilla.gecko.GeckoAppShell;
import org.mozilla.gecko.R;
import org.mozilla.gecko.Tab;
import org.mozilla.gecko.Tabs;
import org.mozilla.gecko.widget.ResizablePathDrawable;
import org.mozilla.gecko.widget.ResizablePathDrawable.NonScaledPathShape;
import org.mozilla.gecko.widget.themed.ThemedImageButton;
import org.mozilla.gecko.widget.themed.ThemedLinearLayout;
import org.mozilla.gecko.widget.themed.ThemedTextView;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Path;
import android.graphics.Region;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Checkable;
import android.widget.ImageView;
public class TabStripItemView extends ThemedLinearLayout
implements Checkable {
private static final String LOGTAG = "GeckoTabStripItem";
private static final int[] STATE_CHECKED = {
android.R.attr.state_checked
};
private int id = -1;
private boolean checked;
private final ImageView faviconView;
private final ThemedTextView titleView;
private final ThemedImageButton closeView;
private final ResizablePathDrawable backgroundDrawable;
private final Region tabRegion;
private final Region tabClipRegion;
private boolean tabRegionNeedsUpdate;
private final int faviconSize;
private Bitmap lastFavicon;
public TabStripItemView(Context context) {
this(context, null);
}
public TabStripItemView(Context context, AttributeSet attrs) {
super(context, attrs);
setOrientation(HORIZONTAL);
tabRegion = new Region();
tabClipRegion = new Region();
final Resources res = context.getResources();
final ColorStateList tabColors =
res.getColorStateList(R.color.tab_strip_item_bg);
backgroundDrawable = new ResizablePathDrawable(new TabCurveShape(), tabColors);
setBackgroundDrawable(backgroundDrawable);
faviconSize = res.getDimensionPixelSize(R.dimen.browser_toolbar_favicon_size);
LayoutInflater.from(context).inflate(R.layout.tab_strip_item_view, this);
setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (id < 0) {
throw new IllegalStateException("Invalid tab id:" + id);
}
Tabs.getInstance().selectTab(id);
}
});
faviconView = (ImageView) findViewById(R.id.favicon);
titleView = (ThemedTextView) findViewById(R.id.title);
closeView = (ThemedImageButton) findViewById(R.id.close);
closeView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (id < 0) {
throw new IllegalStateException("Invalid tab id:" + id);
}
final Tabs tabs = Tabs.getInstance();
tabs.closeTab(tabs.getTab(id), true);
}
});
}
@Override
protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight) {
super.onSizeChanged(width, height, oldWidth, oldHeight);
// Queue a tab region update in the next draw() call. We don't
// update it immediately here because we need the new path from
// the background drawable to be updated first.
tabRegionNeedsUpdate = true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getActionMasked();
final int x = (int) event.getX();
final int y = (int) event.getY();
// Let motion events through if they're off the tab shape bounds.
if (action == MotionEvent.ACTION_DOWN && !tabRegion.contains(x, y)) {
return false;
}
return super.onTouchEvent(event);
}
@Override
public void draw(Canvas canvas) {
super.draw(canvas);
if (tabRegionNeedsUpdate) {
final Path path = backgroundDrawable.getPath();
tabClipRegion.set(0, 0, getWidth(), getHeight());
tabRegion.setPath(path, tabClipRegion);
tabRegionNeedsUpdate = false;
}
}
@Override
public int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (checked) {
mergeDrawableStates(drawableState, STATE_CHECKED);
}
return drawableState;
}
@Override
public boolean isChecked() {
return checked;
}
@Override
public void setChecked(boolean checked) {
if (this.checked == checked) {
return;
}
this.checked = checked;
refreshDrawableState();
}
@Override
public void toggle() {
setChecked(!checked);
}
@Override
public void setPressed(boolean pressed) {
super.setPressed(pressed);
// The surrounding tab strip dividers need to be hidden
// when a tab item enters pressed state.
View parent = (View) getParent();
if (parent != null) {
parent.invalidate();
}
}
void updateFromTab(Tab tab) {
if (tab == null) {
return;
}
id = tab.getId();
updateTitle(tab);
updateFavicon(tab.getFavicon());
setPrivateMode(tab.isPrivate());
}
private void updateTitle(Tab tab) {
final String title;
// Avoid flickering the about:home URL on every load given how often
// this page is used in the UI.
if (AboutPages.isAboutHome(tab.getURL())) {
titleView.setText(R.string.home_title);
} else {
titleView.setText(tab.getDisplayTitle());
}
// TODO: Set content description to indicate audio is playing.
if (tab.isAudioPlaying()) {
titleView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.tab_audio_playing, 0, 0, 0);
} else {
titleView.setCompoundDrawables(null, null, null, null);
}
}
private void updateFavicon(final Bitmap favicon) {
if (favicon == null) {
lastFavicon = null;
faviconView.setImageResource(R.drawable.toolbar_favicon_default);
return;
}
if (favicon == lastFavicon) {
return;
}
// Cache the original so we can debounce without scaling.
lastFavicon = favicon;
final Bitmap scaledFavicon =
Bitmap.createScaledBitmap(favicon, faviconSize, faviconSize, false);
faviconView.setImageBitmap(scaledFavicon);
}
private static class TabCurveShape extends NonScaledPathShape {
@Override
protected void onResize(float width, float height) {
final Path path = getPath();
path.reset();
final float curveWidth = TabCurve.getWidthForHeight(height);
path.moveTo(0, height);
TabCurve.drawFromBottom(path, 0, height, TabCurve.Direction.RIGHT);
path.lineTo(width - curveWidth, 0);
TabCurve.drawFromTop(path, width - curveWidth, height, TabCurve.Direction.RIGHT);
path.lineTo(0, height);
}
}
}
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