mirror of
https://github.com/mozilla/gecko-dev.git
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101 lines
4.1 KiB
Java
101 lines
4.1 KiB
Java
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Canvas;
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import android.graphics.LinearGradient;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.graphics.PorterDuff.Mode;
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import android.graphics.Shader;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.StateListDrawable;
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import android.util.AttributeSet;
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public class BackButton extends ShapedButton {
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private Path mPath;
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private Path mBorderPath;
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private Paint mBorderPaint;
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private Paint mBorderPrivatePaint;
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public BackButton(Context context, AttributeSet attrs) {
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super(context, attrs);
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// Paint to draw the border.
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mBorderPaint = new Paint();
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mBorderPaint.setAntiAlias(true);
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mBorderPaint.setColor(0xFF000000);
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mBorderPaint.setStyle(Paint.Style.STROKE);
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mBorderPrivatePaint = new Paint(mBorderPaint);
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// Path is masked.
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mPath = new Path();
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mBorderPath = new Path();
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mCanvasDelegate = new CanvasDelegate(this, Mode.DST_IN);
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}
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@Override
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protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight) {
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super.onSizeChanged(width, height, oldWidth, oldHeight);
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mPath.reset();
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mPath.addCircle(width/2, height/2, width/2, Path.Direction.CW);
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float borderWidth = getContext().getResources().getDimension(R.dimen.nav_button_border_width);
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mBorderPaint.setStrokeWidth(borderWidth);
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mBorderPrivatePaint.setStrokeWidth(borderWidth);
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mBorderPath.reset();
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mBorderPath.addCircle(width/2, height/2, (width/2) - borderWidth, Path.Direction.CW);
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mBorderPaint.setShader(new LinearGradient(0, 0,
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0, height,
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0xFFB5BBC1, 0xFFFAFBFC,
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Shader.TileMode.CLAMP));
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mBorderPrivatePaint.setShader(new LinearGradient(0, 0,
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0, height,
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0xFF040607, 0xFF0B0D0E,
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Shader.TileMode.CLAMP));
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}
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@Override
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public void draw(Canvas canvas) {
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mCanvasDelegate.draw(canvas, mPath, getWidth(), getHeight());
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// Draw the border on top.
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canvas.drawPath(mBorderPath, isPrivateMode() ? mBorderPrivatePaint : mBorderPaint);
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}
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// The drawable is constructed as per @drawable/address_bar_nav_button.
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@Override
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public void onLightweightThemeChanged() {
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Drawable drawable = mActivity.getLightweightTheme().getDrawable(this);
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if (drawable == null)
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return;
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Resources resources = getContext().getResources();
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StateListDrawable stateList = new StateListDrawable();
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stateList.addState(new int[] { R.attr.state_private, android.R.attr.state_pressed }, new ColorDrawable(resources.getColor(R.color.highlight_nav_pb)));
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stateList.addState(new int[] { android.R.attr.state_pressed }, new ColorDrawable(resources.getColor(R.color.highlight_nav)));
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stateList.addState(new int[] { R.attr.state_private, android.R.attr.state_focused }, new ColorDrawable(resources.getColor(R.color.highlight_nav_focused_pb)));
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stateList.addState(new int[] { android.R.attr.state_focused }, new ColorDrawable(resources.getColor(R.color.highlight_nav_focused)));
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stateList.addState(new int[] { R.attr.state_private }, new ColorDrawable(resources.getColor(R.color.background_private)));
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stateList.addState(new int[] {}, drawable);
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setBackgroundDrawable(stateList);
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}
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@Override
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public void onLightweightThemeReset() {
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setBackgroundResource(R.drawable.address_bar_nav_button);
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}
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}
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