// Copyright 2015 The Chromium Authors
// 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.customtabs.features.toolbar;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.content.Context;
import android.util.TypedValue;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import androidx.annotation.DimenRes;
import androidx.annotation.DrawableRes;
import org.chromium.chrome.R;
import org.chromium.chrome.browser.toolbar.ToolbarFeatures;
import org.chromium.components.omnibox.SecurityButtonAnimationDelegate;
import org.chromium.ui.base.ViewUtils;
import org.chromium.ui.interpolators.Interpolators;
/**
* A delegate class to handle the title animation and security icon animation in
* {@link CustomTabToolbar}.
* <p>
* How does the title animation work?
* <p>
* 1. The title bar is set from {@link View#GONE} to {@link View#VISIBLE}, which triggers a relayout
* of the location bar. 2. On relayout, the newly positioned urlbar will be moved&scaled to look
* exactly the same as before the relayout. (Note the scale factor is calculated based on
* {@link TextView#getTextSize()}, not height or width.) 3. Finally the urlbar will be animated to
* its new position.
*
* <p>
* How does the security button animation work?
* </p>
* See {@link SecurityButtonAnimationDelegate} and {@link BrandingSecurityButtonAnimationDelegate}.
*/
class CustomTabToolbarAnimationDelegate {
private final SecurityButtonAnimationDelegate mSecurityButtonAnimationDelegate;
private final BrandingSecurityButtonAnimationDelegate mBrandingAnimationDelegate;
private final Runnable mAnimationEndRunnable;
private TextView mUrlBar;
private TextView mTitleBar;
// A flag controlling whether the animation has run before.
private boolean mShouldRunTitleAnimation;
private boolean mUseRotationTransition;
private @DrawableRes int mSecurityIconRes;
private boolean mIsInAnimation;
private final AnimatorListenerAdapter mTitleBarAnimatorListenerAdapter =
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mIsInAnimation = false;
mAnimationEndRunnable.run();
}
};
private final AnimatorListenerAdapter mUrlBarAnimatorListenerAdapter =
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mTitleBar
.animate()
.alpha(1f)
.setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN_INTERPOLATOR)
.setDuration(SecurityButtonAnimationDelegate.FADE_DURATION_MS)
.setListener(mTitleBarAnimatorListenerAdapter)
.start();
}
};
/** Constructs an instance of {@link CustomTabToolbarAnimationDelegate}. */
CustomTabToolbarAnimationDelegate(
ImageButton securityButton,
final View securityButtonOffsetTarget,
Runnable animationEndRunnable,
@DimenRes int securityStatusIconSize) {
int securityButtonWidth =
securityButton.getResources().getDimensionPixelSize(securityStatusIconSize);
securityButtonOffsetTarget.setTranslationX(-securityButtonWidth);
mSecurityButtonAnimationDelegate =
new SecurityButtonAnimationDelegate(
securityButton, securityButtonOffsetTarget, securityStatusIconSize);
mBrandingAnimationDelegate = new BrandingSecurityButtonAnimationDelegate(securityButton);
mAnimationEndRunnable = animationEndRunnable;
}
/** Sets whether the title scaling animation is enabled. */
void setTitleAnimationEnabled(boolean enabled) {
mShouldRunTitleAnimation = enabled;
}
void prepareTitleAnim(TextView urlBar, TextView titleBar) {
mTitleBar = titleBar;
mUrlBar = urlBar;
mUrlBar.setPivotX(0f);
mUrlBar.setPivotY(0f);
mShouldRunTitleAnimation = true;
}
/**
* Starts animation for urlbar scaling and title fading-in. If this animation has already run
* once, does nothing.
*/
void startTitleAnimation(Context context) {
if (!mShouldRunTitleAnimation) return;
mShouldRunTitleAnimation = false;
var titleBar = mTitleBar;
titleBar.setVisibility(View.VISIBLE);
titleBar.setAlpha(0f);
TextView urlBar = mUrlBar;
float newSizeSp = context.getResources().getDimension(R.dimen.custom_tabs_url_text_size);
float oldSizePx = urlBar.getTextSize();
urlBar.setTextSize(TypedValue.COMPLEX_UNIT_PX, newSizeSp);
// View#getY() cannot be used because the boundary of the parent will change after relayout.
final int[] oldLoc = new int[2];
urlBar.getLocationInWindow(oldLoc);
ViewUtils.requestLayout(urlBar, "CustomTabToolbarAnimationDelegate.startTitleAnimation");
urlBar.addOnLayoutChangeListener(
new View.OnLayoutChangeListener() {
@Override
public void onLayoutChange(
View v,
int left,
int top,
int right,
int bottom,
int oldLeft,
int oldTop,
int oldRight,
int oldBottom) {
TextView urlBar = mUrlBar;
urlBar.removeOnLayoutChangeListener(this);
int[] newLoc = new int[2];
urlBar.getLocationInWindow(newLoc);
// The size may change during the measuring pass, so we should calculate the
// new size here, after the layout is done.
float newSizePx = urlBar.getTextSize();
final float scale = oldSizePx / newSizePx;
urlBar.setScaleX(scale);
urlBar.setScaleY(scale);
urlBar.setTranslationX(oldLoc[0] - newLoc[0]);
urlBar.setTranslationY(oldLoc[1] - newLoc[1]);
mIsInAnimation = true;
urlBar.animate()
.scaleX(1f)
.scaleY(1f)
.translationX(0)
.translationY(0)
.setDuration(SecurityButtonAnimationDelegate.SLIDE_DURATION_MS)
.setInterpolator(Interpolators.FAST_OUT_SLOW_IN_INTERPOLATOR)
.setListener(mUrlBarAnimatorListenerAdapter)
.start();
}
});
}
/**
* Starts the animation to show/hide the security button,
*
* @param securityIconResource The updated resource to be assigned to the security status icon.
* When this is null, the icon is animated to the left and faded out.
*/
void updateSecurityButton(@DrawableRes int securityIconResource) {
if (mUseRotationTransition) {
mBrandingAnimationDelegate.updateDrawableResource(securityIconResource);
} else {
boolean isActualResourceChange = true;
if (ToolbarFeatures.shouldSuppressCaptures()) {
isActualResourceChange = securityIconResource != mSecurityIconRes;
}
mSecurityButtonAnimationDelegate.updateSecurityButton(
securityIconResource, /* animate= */ true, isActualResourceChange);
}
mSecurityIconRes = securityIconResource;
}
void setUseRotationSecurityButtonTransition(boolean useRotation) {
mUseRotationTransition = useRotation;
}
/** Returns the resource id for the current icon when in a steady state. */
@DrawableRes
int getSecurityIconRes() {
return mSecurityIconRes;
}
/** Returns whether an animation is currently running. */
boolean isInAnimation() {
return mIsInAnimation
|| mBrandingAnimationDelegate.isInAnimation()
|| mSecurityButtonAnimationDelegate.isInAnimation();
}
}
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