Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(4431)

Unified Diff: chrome/android/java/src/org/chromium/chrome/browser/appmenu/IconHighlightDrawable.java

Issue 2779543005: Add support for highlighting menu items (Closed)
Patch Set: Cleaned up some comments and code Created 3 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: chrome/android/java/src/org/chromium/chrome/browser/appmenu/IconHighlightDrawable.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/IconHighlightDrawable.java b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/IconHighlightDrawable.java
new file mode 100644
index 0000000000000000000000000000000000000000..366f8b2b581ca1dbc9915cb48fd15b7ca092ea56
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/IconHighlightDrawable.java
@@ -0,0 +1,115 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.appmenu;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.ShapeDrawable;
+import android.graphics.drawable.shapes.OvalShape;
+import android.support.annotation.ColorRes;
+import android.support.v4.view.animation.PathInterpolatorCompat;
+
+/** A {@link Drawable} that draws a circular pulsing dot. */
+public class IconHighlightDrawable extends ShapeDrawable {
+ private final Rect mCacheRect = new Rect();
+ private final Rect mMargin = new Rect();
+ private float mScale;
+
+ /**
+ * Creates a new {@link IconHighlightDrawable} with the specified color.
+ * @param color The color to make the {@link Drawable}.
+ */
+ public IconHighlightDrawable(@ColorRes int color) {
+ setShape(new OvalShape());
+ setAlpha(75);
+ getPaint().setColor(color);
+ startAnimation();
+ }
+
+ @Override
+ public void draw(Canvas canvas) {
+ canvas.save();
+ canvas.scale(mScale, mScale, getBounds().exactCenterX(), getBounds().exactCenterY());
+ super.draw(canvas);
+ canvas.restore();
+ }
+
+ @Override
+ public void setBounds(Rect bounds) {
+ mCacheRect.set(bounds.left + mMargin.left, bounds.top + mMargin.top,
+ bounds.right - mMargin.right, bounds.bottom - mMargin.bottom);
+ makeSquare(mCacheRect);
+ super.setBounds(mCacheRect);
+ }
+
+ @Override
+ public void setBounds(int left, int top, int right, int bottom) {
+ mCacheRect.set(left + mMargin.left, top + mMargin.top, right - mMargin.right,
+ bottom - mMargin.bottom);
+ makeSquare(mCacheRect);
+ super.setBounds(mCacheRect.left, mCacheRect.top, mCacheRect.right, mCacheRect.bottom);
+ }
+
+ /** How much to inset the {@link Drawable} bounds by. */
+ public void setMargin(int left, int top, int right, int bottom) {
+ mMargin.set(left, top, right, bottom);
+ setBounds(getBounds());
+ }
+
+ /**
+ * Sets the scale of the circle this {@link Drawable} draws.
+ * @param scale The scale (from 0.f to 1.f).
+ */
+ public void setScale(float scale) {
+ mScale = scale;
+ invalidateSelf();
+ }
+
+ private void startAnimation() {
+ final float minScale = 0.8f;
+ final float maxScale = 1.f;
+ setScale(minScale);
+ ObjectAnimator scaleUpAnim = ObjectAnimator.ofFloat(this, "scale", minScale, maxScale);
+ scaleUpAnim.setStartDelay(500);
+ scaleUpAnim.setDuration(500);
+ scaleUpAnim.setInterpolator(PathInterpolatorCompat.create(.8f, 0.f, .6f, 1.f));
+
+ ObjectAnimator scaleDownAnim = ObjectAnimator.ofFloat(this, "scale", maxScale, minScale);
+ scaleDownAnim.setDuration(250);
+ scaleDownAnim.setInterpolator(PathInterpolatorCompat.create(.8f, 0.f, .6f, 1.f));
+
+ AnimatorSet set = new AnimatorSet();
+ set.playSequentially(scaleUpAnim, scaleDownAnim);
+ set.addListener(new AnimatorListenerAdapter() {
+ private boolean mCanceled;
+
+ @Override
+ public void onAnimationStart(Animator animation) {
+ mCanceled = false;
+ }
+
+ @Override
+ public void onAnimationCancel(Animator animation) {
+ mCanceled = true;
+ }
+
+ @Override
+ public void onAnimationEnd(Animator animation) {
+ if (!mCanceled) animation.start();
+ }
+ });
+ set.start();
+ }
+
+ private void makeSquare(Rect rect) {
+ int minDimension = Math.min(rect.width(), rect.height());
+ rect.inset((rect.width() - minDimension) / 2, (rect.height() - minDimension) / 2);
+ }
+}

Powered by Google App Engine
This is Rietveld 408576698