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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.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Path;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.StateListDrawable;
import android.util.AttributeSet;
public class ShapedButton extends GeckoImageButton
implements CanvasDelegate.DrawManager {
protected GeckoActivity mActivity;
private Path mPath;
private CurveTowards mSide;
protected CanvasDelegate mCanvasDelegate;
private enum CurveTowards { NONE, LEFT, RIGHT };
public ShapedButton(Context context, AttributeSet attrs) {
super(context, attrs);
mActivity = (GeckoActivity) context;
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.BrowserToolbarCurve);
int curveTowards = a.getInt(R.styleable.BrowserToolbarCurve_curveTowards, 0x00);
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_IN);
setWillNotDraw(false);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (mSide == CurveTowards.NONE)
return;
int width = getMeasuredWidth();
int height = getMeasuredHeight();
int curve = (int) (height * 1.125f);
mPath.reset();
if (mSide == CurveTowards.RIGHT) {
mPath.moveTo(0, 0);
mPath.cubicTo(curve * 0.75f, 0,
curve * 0.25f, height,
curve, height);
mPath.lineTo(width, height);
mPath.lineTo(width, 0);
mPath.lineTo(0, 0);
} else if (mSide == CurveTowards.LEFT) {
mPath.moveTo(width, 0);
mPath.cubicTo((width - (curve * 0.75f)), 0,
(width - (curve * 0.25f)), height,
(width - curve), height);
mPath.lineTo(0, height);
mPath.lineTo(0, 0);
}
}
@Override
public void draw(Canvas canvas) {
if (mCanvasDelegate != null && mSide != CurveTowards.NONE)
mCanvasDelegate.draw(canvas, mPath, getWidth(), getHeight());
else
defaultDraw(canvas);
}
@Override
public void defaultDraw(Canvas canvas) {
super.draw(canvas);
}
// The drawable is constructed as per @drawable/shaped_button.
@Override
public void onLightweightThemeChanged() {
int background = mActivity.getResources().getColor(R.color.background_tabs);
LightweightThemeDrawable lightWeight = mActivity.getLightweightTheme().getColorDrawable(this, background);
if (lightWeight == null)
return;
lightWeight.setAlpha(34, 34);
Resources resources = this.getContext().getResources();
StateListDrawable stateList = new StateListDrawable();
stateList.addState(new int[] { android.R.attr.state_pressed }, new ColorDrawable(resources.getColor(R.color.highlight_shaped)));
stateList.addState(new int[] { android.R.attr.state_focused }, new ColorDrawable(resources.getColor(R.color.highlight_shaped_focused)));
stateList.addState(new int[] { R.attr.state_private }, new ColorDrawable(resources.getColor(R.color.background_tabs)));
stateList.addState(new int[] {}, lightWeight);
setBackgroundDrawable(stateList);
}
@Override
public void onLightweightThemeReset() {
setBackgroundResource(R.drawable.shaped_button);
}
@Override
public void setBackgroundDrawable(Drawable drawable) {
if (getBackground() == null || drawable == null) {
super.setBackgroundDrawable(drawable);
return;
}
int[] padding = new int[] { getPaddingLeft(),
getPaddingTop(),
getPaddingRight(),
getPaddingBottom()
};
drawable.setLevel(getBackground().getLevel());
super.setBackgroundDrawable(drawable);
setPadding(padding[0], padding[1], padding[2], padding[3]);
}
@Override
public void setBackgroundResource(int resId) {
if (getBackground() == null || resId == 0) {
super.setBackgroundResource(resId);
return;
}
setBackgroundDrawable(getContext().getResources().getDrawable(resId));
}
}
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