gecko/mobile/android/base/BrowserToolbarBackground.java
Sriram Ramasubramanian 2ed5bd65cc Bug 794940: Visible white line in Nexus 7. [r=mfinkle] [needs-clobber]
--HG--
extra : rebase_source : 09b4301502fe5aaf75056d163deb325dabcb79f4
2013-01-30 14:47:41 -08:00

143 lines
4.7 KiB
Java

/* 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.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Path;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.StateListDrawable;
import android.util.AttributeSet;
public class BrowserToolbarBackground extends GeckoLinearLayout
implements CanvasDelegate.DrawManager,
LightweightTheme.OnChangeListener {
private GeckoActivity mActivity;
private Path mPath;
private CurveTowards mSide;
private CanvasDelegate mCanvasDelegate;
public enum CurveTowards { NONE, LEFT, RIGHT };
public BrowserToolbarBackground(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.BrowserToolbarCurve);
int curveTowards = a.getInt(R.styleable.BrowserToolbarCurve_curveTowards, 0x02);
a.recycle();
if (curveTowards == 0x00)
mSide = CurveTowards.NONE;
else if (curveTowards == 0x01)
mSide = CurveTowards.LEFT;
else
mSide = CurveTowards.RIGHT;
// Path is clipped.
mPath = new Path();
mCanvasDelegate = new CanvasDelegate(this, Mode.DST_OUT);
mActivity = (GeckoActivity) context;
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
mActivity.getLightweightTheme().addListener(this);
}
@Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
mActivity.getLightweightTheme().removeListener(this);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = getMeasuredWidth();
int height = getMeasuredHeight();
int curve = (int) (height * 1.125f);
mPath.reset();
if (mSide == CurveTowards.LEFT) {
mPath.moveTo(0, height);
mPath.cubicTo(curve * 0.75f, height,
curve * 0.25f, 0,
curve, 0);
mPath.lineTo(0, 0);
mPath.lineTo(0, height);
} else if (mSide == CurveTowards.RIGHT) {
mPath.moveTo(width, height);
mPath.cubicTo((width - (curve * 0.75f)), height,
(width - (curve * 0.25f)), 0,
(width - curve), 0);
mPath.lineTo(width, 0);
mPath.lineTo(width, height);
}
}
@Override
public void draw(Canvas canvas) {
mCanvasDelegate.draw(canvas, mPath, getWidth(), getHeight());
}
@Override
public void defaultDraw(Canvas canvas) {
super.draw(canvas);
}
@Override
public void onLightweightThemeChanged() {
Drawable drawable = mActivity.getLightweightTheme().getDrawable(this);
if (drawable == null)
return;
StateListDrawable stateList = new StateListDrawable();
stateList.addState(new int[] { R.attr.state_private }, mActivity.getResources().getDrawable(R.drawable.address_bar_bg_private));
stateList.addState(new int[] {}, drawable);
int[] padding = new int[] { getPaddingLeft(),
getPaddingTop(),
getPaddingRight(),
getPaddingBottom()
};
setBackgroundDrawable(stateList);
setPadding(padding[0], padding[1], padding[2], padding[3]);
}
@Override
public void onLightweightThemeReset() {
int[] padding = new int[] { getPaddingLeft(),
getPaddingTop(),
getPaddingRight(),
getPaddingBottom()
};
setBackgroundResource(R.drawable.address_bar_bg);
setPadding(padding[0], padding[1], padding[2], padding[3]);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
onLightweightThemeChanged();
}
public CurveTowards getCurveTowards() {
return mSide;
}
public void setCurveTowards(CurveTowards side) {
if (side == mSide)
return;
mSide = side;
invalidate();
}
}