mobile/android/base/toolbar/BackButton.java@b8a032363ba2 (annotated)
mobile/android/base/toolbar/BackButton.java
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | package org.mozilla.gecko.toolbar; |
| michael@0 | 6 | |
| michael@0 | 7 | import org.mozilla.gecko.R; |
| michael@0 | 8 | |
| michael@0 | 9 | import android.content.Context; |
| michael@0 | 10 | import android.graphics.Canvas; |
| michael@0 | 11 | import android.graphics.LinearGradient; |
| michael@0 | 12 | import android.graphics.Paint; |
| michael@0 | 13 | import android.graphics.Path; |
| michael@0 | 14 | import android.graphics.Shader; |
| michael@0 | 15 | import android.graphics.drawable.Drawable; |
| michael@0 | 16 | import android.graphics.drawable.StateListDrawable; |
| michael@0 | 17 | import android.util.AttributeSet; |
| michael@0 | 18 | |
| michael@0 | 19 | public class BackButton extends ShapedButton { |
| michael@0 | 20 | private Path mPath; |
| michael@0 | 21 | private Path mBorderPath; |
| michael@0 | 22 | private Paint mBorderPaint; |
| michael@0 | 23 | private Paint mBorderPrivatePaint; |
| michael@0 | 24 | |
| michael@0 | 25 | public BackButton(Context context, AttributeSet attrs) { |
| michael@0 | 26 | super(context, attrs); |
| michael@0 | 27 | |
| michael@0 | 28 | // Paint to draw the border. |
| michael@0 | 29 | mBorderPaint = new Paint(); |
| michael@0 | 30 | mBorderPaint.setAntiAlias(true); |
| michael@0 | 31 | mBorderPaint.setColor(0xFF000000); |
| michael@0 | 32 | mBorderPaint.setStyle(Paint.Style.STROKE); |
| michael@0 | 33 | |
| michael@0 | 34 | mBorderPrivatePaint = new Paint(mBorderPaint); |
| michael@0 | 35 | |
| michael@0 | 36 | // Path is masked. |
| michael@0 | 37 | mPath = new Path(); |
| michael@0 | 38 | mBorderPath = new Path(); |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | @Override |
| michael@0 | 42 | protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight) { |
| michael@0 | 43 | super.onSizeChanged(width, height, oldWidth, oldHeight); |
| michael@0 | 44 | |
| michael@0 | 45 | mPath.reset(); |
| michael@0 | 46 | mPath.addCircle(width/2, height/2, width/2, Path.Direction.CW); |
| michael@0 | 47 | |
| michael@0 | 48 | float borderWidth = getContext().getResources().getDimension(R.dimen.nav_button_border_width); |
| michael@0 | 49 | mBorderPaint.setStrokeWidth(borderWidth); |
| michael@0 | 50 | mBorderPrivatePaint.setStrokeWidth(borderWidth); |
| michael@0 | 51 | |
| michael@0 | 52 | mBorderPath.reset(); |
| michael@0 | 53 | mBorderPath.addCircle(width/2, height/2, (width/2) - borderWidth, Path.Direction.CW); |
| michael@0 | 54 | |
| michael@0 | 55 | mBorderPaint.setShader(new LinearGradient(0, 0, |
| michael@0 | 56 | 0, height, |
| michael@0 | 57 | 0xFFB5BBC1, 0xFFFAFBFC, |
| michael@0 | 58 | Shader.TileMode.CLAMP)); |
| michael@0 | 59 | |
| michael@0 | 60 | mBorderPrivatePaint.setShader(new LinearGradient(0, 0, |
| michael@0 | 61 | 0, height, |
| michael@0 | 62 | 0xFF040607, 0xFF0B0D0E, |
| michael@0 | 63 | Shader.TileMode.CLAMP)); |
| michael@0 | 64 | } |
| michael@0 | 65 | |
| michael@0 | 66 | @Override |
| michael@0 | 67 | public void draw(Canvas canvas) { |
| michael@0 | 68 | mCanvasDelegate.draw(canvas, mPath, getWidth(), getHeight()); |
| michael@0 | 69 | |
| michael@0 | 70 | // Draw the border on top. |
| michael@0 | 71 | canvas.drawPath(mBorderPath, isPrivateMode() ? mBorderPrivatePaint : mBorderPaint); |
| michael@0 | 72 | } |
| michael@0 | 73 | |
| michael@0 | 74 | // The drawable is constructed as per @drawable/url_bar_nav_button. |
| michael@0 | 75 | @Override |
| michael@0 | 76 | public void onLightweightThemeChanged() { |
| michael@0 | 77 | final Drawable drawable = mTheme.getDrawable(this); |
| michael@0 | 78 | if (drawable == null) |
| michael@0 | 79 | return; |
| michael@0 | 80 | |
| michael@0 | 81 | final StateListDrawable stateList = new StateListDrawable(); |
| michael@0 | 82 | stateList.addState(PRIVATE_PRESSED_STATE_SET, getColorDrawable(R.color.highlight_nav_pb)); |
| michael@0 | 83 | stateList.addState(PRESSED_ENABLED_STATE_SET, getColorDrawable(R.color.highlight_nav)); |
| michael@0 | 84 | stateList.addState(PRIVATE_FOCUSED_STATE_SET, getColorDrawable(R.color.highlight_nav_focused_pb)); |
| michael@0 | 85 | stateList.addState(FOCUSED_STATE_SET, getColorDrawable(R.color.highlight_nav_focused)); |
| michael@0 | 86 | stateList.addState(PRIVATE_STATE_SET, getColorDrawable(R.color.background_private)); |
| michael@0 | 87 | stateList.addState(EMPTY_STATE_SET, drawable); |
| michael@0 | 88 | |
| michael@0 | 89 | setBackgroundDrawable(stateList); |
| michael@0 | 90 | } |
| michael@0 | 91 | |
| michael@0 | 92 | @Override |
| michael@0 | 93 | public void onLightweightThemeReset() { |
| michael@0 | 94 | setBackgroundResource(R.drawable.url_bar_nav_button); |
| michael@0 | 95 | } |
| michael@0 | 96 | } |
