310 lines
12 KiB
Kotlin
310 lines
12 KiB
Kotlin
/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.components.toolbar
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import android.animation.AnimatorSet
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import android.animation.ObjectAnimator
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import android.content.Context
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import android.graphics.Typeface
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import android.util.AttributeSet
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import android.util.TypedValue
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import android.view.LayoutInflater
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import android.view.ViewTreeObserver
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import android.widget.ImageView
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import android.widget.RelativeLayout
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import android.widget.TextView
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import mozilla.components.support.utils.DrawableUtils
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import mozilla.components.ui.tabcounter.R
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import java.text.NumberFormat
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open class TabCounter @JvmOverloads constructor(
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context: Context,
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attrs: AttributeSet? = null,
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defStyle: Int = 0
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) : RelativeLayout(context, attrs, defStyle) {
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private val box: ImageView
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private val text: TextView
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private val animationSet: AnimatorSet
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private var count: Int = 0
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private var currentTextRatio: Float = 0.toFloat()
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init {
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val inflater = LayoutInflater.from(context)
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inflater.inflate(R.layout.mozac_ui_tabcounter_layout, this)
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box = findViewById(R.id.counter_box)
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text = findViewById(R.id.counter_text)
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text.text = DEFAULT_TABS_COUNTER_TEXT
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val shiftOneDpForDefaultText = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_DIP, 1f, context.resources.displayMetrics
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).toInt()
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text.setPadding(0, 0, 0, shiftOneDpForDefaultText)
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animationSet = createAnimatorSet()
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}
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fun getText(): CharSequence {
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return text.text
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}
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fun setCountWithAnimation(count: Int) {
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// Don't animate from initial state.
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if (this.count == 0) {
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setCount(count)
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return
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}
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if (this.count == count) {
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return
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}
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// Don't animate if there are still over MAX_VISIBLE_TABS tabs open.
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if (this.count > MAX_VISIBLE_TABS && count > MAX_VISIBLE_TABS) {
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this.count = count
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return
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}
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adjustTextSize(count)
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text.setPadding(0, 0, 0, 0)
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text.text = formatForDisplay(count)
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this.count = count
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// Cancel previous animations if necessary.
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if (animationSet.isRunning) {
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animationSet.cancel()
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}
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// Trigger animations.
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animationSet.start()
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}
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fun setCount(count: Int) {
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adjustTextSize(count)
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text.setPadding(0, 0, 0, 0)
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text.text = formatForDisplay(count)
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this.count = count
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}
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private fun tintDrawables(tabCounterTint: Int) {
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val tabCounterBox = DrawableUtils.loadAndTintDrawable(
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context,
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R.drawable.mozac_ui_tabcounter_box, tabCounterTint
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)
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box.setImageDrawable(tabCounterBox)
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text.setTextColor(tabCounterTint)
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}
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private fun createAnimatorSet(): AnimatorSet {
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val animatorSet = AnimatorSet()
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createBoxAnimatorSet(animatorSet)
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createTextAnimatorSet(animatorSet)
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return animatorSet
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}
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private fun createBoxAnimatorSet(animatorSet: AnimatorSet) {
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// The first animator, fadeout in 33 ms (49~51, 2 frames).
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val fadeOut = ObjectAnimator.ofFloat(
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box, "alpha",
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ANIM_BOX_FADEOUT_FROM, ANIM_BOX_FADEOUT_TO
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).setDuration(ANIM_BOX_FADEOUT_DURATION)
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// Move up on y-axis, from 0.0 to -5.3 in 50ms, with fadeOut (49~52, 3 frames).
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val moveUp1 = ObjectAnimator.ofFloat(
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box, "translationY",
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ANIM_BOX_MOVEUP1_TO, ANIM_BOX_MOVEUP1_FROM
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).setDuration(ANIM_BOX_MOVEUP1_DURATION)
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// Move down on y-axis, from -5.3 to -1.0 in 116ms, after moveUp1 (52~59, 7 frames).
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val moveDown2 = ObjectAnimator.ofFloat(
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box, "translationY",
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ANIM_BOX_MOVEDOWN2_FROM, ANIM_BOX_MOVEDOWN2_TO
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).setDuration(ANIM_BOX_MOVEDOWN2_DURATION)
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// FadeIn in 66ms, with moveDown2 (52~56, 4 frames).
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val fadeIn = ObjectAnimator.ofFloat(
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box, "alpha",
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ANIM_BOX_FADEIN_FROM, ANIM_BOX_FADEIN_TO
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).setDuration(ANIM_BOX_FADEIN_DURATION)
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// Move down on y-axis, from -1.0 to 2.7 in 116ms, after moveDown2 (59~66, 7 frames).
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val moveDown3 = ObjectAnimator.ofFloat(
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box, "translationY",
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ANIM_BOX_MOVEDOWN3_FROM, ANIM_BOX_MOVEDOWN3_TO
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).setDuration(ANIM_BOX_MOVEDOWN3_DURATION)
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// Move up on y-axis, from 2.7 to 0 in 133ms, after moveDown3 (66~74, 8 frames).
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val moveUp4 = ObjectAnimator.ofFloat(
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box, "translationY",
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ANIM_BOX_MOVEDOWN4_FROM, ANIM_BOX_MOVEDOWN4_TO
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).setDuration(ANIM_BOX_MOVEDOWN4_DURATION)
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// Scale up height from 2% to 105% in 100ms, after moveUp1 and delay 16ms (53~59, 6 frames).
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val scaleUp1 = ObjectAnimator.ofFloat(
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box, "scaleY",
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ANIM_BOX_SCALEUP1_FROM, ANIM_BOX_SCALEUP1_TO
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).setDuration(ANIM_BOX_SCALEUP1_DURATION)
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scaleUp1.startDelay = ANIM_BOX_SCALEUP1_DELAY // delay 1 frame after moveUp1
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// Scale down height from 105% to 99% in 116ms, after scaleUp1 (59~66, 7 frames).
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val scaleDown2 = ObjectAnimator.ofFloat(
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box, "scaleY",
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ANIM_BOX_SCALEDOWN2_FROM, ANIM_BOX_SCALEDOWN2_TO
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).setDuration(ANIM_BOX_SCALEDOWN2_DURATION)
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// Scale up height from 99% to 100% in 133ms, after scaleDown2 (66~74, 8 frames).
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val scaleUp3 = ObjectAnimator.ofFloat(
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box, "scaleY",
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ANIM_BOX_SCALEUP3_FROM, ANIM_BOX_SCALEUP3_TO
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).setDuration(ANIM_BOX_SCALEUP3_DURATION)
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animatorSet.play(fadeOut).with(moveUp1)
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animatorSet.play(moveUp1).before(moveDown2)
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animatorSet.play(moveDown2).with(fadeIn)
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animatorSet.play(moveDown2).before(moveDown3)
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animatorSet.play(moveDown3).before(moveUp4)
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animatorSet.play(moveUp1).before(scaleUp1)
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animatorSet.play(scaleUp1).before(scaleDown2)
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animatorSet.play(scaleDown2).before(scaleUp3)
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}
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private fun createTextAnimatorSet(animatorSet: AnimatorSet) {
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val firstAnimator = animatorSet.childAnimations[0]
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// Fadeout in 100ms, with firstAnimator (49~51, 2 frames).
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val fadeOut = ObjectAnimator.ofFloat(
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text, "alpha",
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ANIM_TEXT_FADEOUT_FROM, ANIM_TEXT_FADEOUT_TO
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).setDuration(ANIM_TEXT_FADEOUT_DURATION)
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// FadeIn in 66 ms, after fadeOut with delay 96ms (57~61, 4 frames).
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val fadeIn = ObjectAnimator.ofFloat(
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text, "alpha",
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ANIM_TEXT_FADEIN_FROM, ANIM_TEXT_FADEIN_TO
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).setDuration(ANIM_TEXT_FADEIN_DURATION)
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fadeIn.startDelay = (ANIM_TEXT_FADEIN_DELAY).toLong() // delay 6 frames after fadeOut
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// Move down on y-axis, from 0 to 4.4 in 66ms, with fadeIn (57~61, 4 frames).
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val moveDown = ObjectAnimator.ofFloat(
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text, "translationY",
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ANIM_TEXT_MOVEDOWN_FROM, ANIM_TEXT_MOVEDOWN_TO
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).setDuration(ANIM_TEXT_MOVEDOWN_DURATION)
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moveDown.startDelay = (ANIM_TEXT_MOVEDOWN_DELAY) // delay 6 frames after fadeOut
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// Move up on y-axis, from 0 to 4.4 in 66ms, after moveDown (61~69, 8 frames).
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val moveUp = ObjectAnimator.ofFloat(
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text, "translationY",
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ANIM_TEXT_MOVEUP_FROM, ANIM_TEXT_MOVEUP_TO
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).setDuration(ANIM_TEXT_MOVEUP_DURATION)
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animatorSet.play(firstAnimator).with(fadeOut)
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animatorSet.play(fadeOut).before(fadeIn)
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animatorSet.play(fadeIn).with(moveDown)
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animatorSet.play(moveDown).before(moveUp)
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}
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private fun formatForDisplay(count: Int): String {
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return if (count > MAX_VISIBLE_TABS) {
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SO_MANY_TABS_OPEN
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} else NumberFormat.getInstance().format(count.toLong())
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}
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private fun adjustTextSize(newCount: Int) {
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val newRatio = if (newCount in TWO_DIGITS_TAB_COUNT_THRESHOLD..MAX_VISIBLE_TABS) {
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TWO_DIGITS_SIZE_RATIO
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} else {
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ONE_DIGIT_SIZE_RATIO
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}
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if (newRatio != currentTextRatio) {
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currentTextRatio = newRatio
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text.viewTreeObserver.addOnGlobalLayoutListener(object :
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ViewTreeObserver.OnGlobalLayoutListener {
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override fun onGlobalLayout() {
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text.viewTreeObserver.removeOnGlobalLayoutListener(this)
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val sizeInPixel = (box.width * newRatio).toInt()
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if (sizeInPixel > 0) {
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// Only apply the size when we calculate a valid value.
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text.setTextSize(TypedValue.COMPLEX_UNIT_PX, sizeInPixel.toFloat())
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text.setTypeface(null, Typeface.BOLD)
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}
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}
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})
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}
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}
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companion object {
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internal const val MAX_VISIBLE_TABS = 99
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internal const val SO_MANY_TABS_OPEN = "∞"
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internal const val DEFAULT_TABS_COUNTER_TEXT = ":)"
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internal const val ONE_DIGIT_SIZE_RATIO = 0.5f
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internal const val TWO_DIGITS_SIZE_RATIO = 0.4f
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internal const val TWO_DIGITS_TAB_COUNT_THRESHOLD = 10
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// createBoxAnimatorSet
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private const val ANIM_BOX_FADEOUT_FROM = 1.0f
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private const val ANIM_BOX_FADEOUT_TO = 0.0f
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private const val ANIM_BOX_FADEOUT_DURATION = 33L
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private const val ANIM_BOX_MOVEUP1_FROM = 0.0f
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private const val ANIM_BOX_MOVEUP1_TO = -5.3f
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private const val ANIM_BOX_MOVEUP1_DURATION = 50L
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private const val ANIM_BOX_MOVEDOWN2_FROM = -5.3f
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private const val ANIM_BOX_MOVEDOWN2_TO = -1.0f
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private const val ANIM_BOX_MOVEDOWN2_DURATION = 167L
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private const val ANIM_BOX_FADEIN_FROM = 0.01f
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private const val ANIM_BOX_FADEIN_TO = 1.0f
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private const val ANIM_BOX_FADEIN_DURATION = 66L
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private const val ANIM_BOX_MOVEDOWN3_FROM = -1.0f
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private const val ANIM_BOX_MOVEDOWN3_TO = 2.7f
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private const val ANIM_BOX_MOVEDOWN3_DURATION = 116L
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private const val ANIM_BOX_MOVEDOWN4_FROM = 2.7f
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private const val ANIM_BOX_MOVEDOWN4_TO = 0.0f
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private const val ANIM_BOX_MOVEDOWN4_DURATION = 133L
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private const val ANIM_BOX_SCALEUP1_FROM = 0.02f
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private const val ANIM_BOX_SCALEUP1_TO = 1.05f
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private const val ANIM_BOX_SCALEUP1_DURATION = 100L
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private const val ANIM_BOX_SCALEUP1_DELAY = 16L
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private const val ANIM_BOX_SCALEDOWN2_FROM = 1.05f
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private const val ANIM_BOX_SCALEDOWN2_TO = 0.99f
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private const val ANIM_BOX_SCALEDOWN2_DURATION = 116L
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private const val ANIM_BOX_SCALEUP3_FROM = 0.99f
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private const val ANIM_BOX_SCALEUP3_TO = 1.00f
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private const val ANIM_BOX_SCALEUP3_DURATION = 133L
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// createTextAnimatorSet
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private const val ANIM_TEXT_FADEOUT_FROM = 1.0f
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private const val ANIM_TEXT_FADEOUT_TO = 0.0f
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private const val ANIM_TEXT_FADEOUT_DURATION = 33L
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private const val ANIM_TEXT_FADEIN_FROM = 0.01f
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private const val ANIM_TEXT_FADEIN_TO = 1.0f
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private const val ANIM_TEXT_FADEIN_DURATION = 66L
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private const val ANIM_TEXT_FADEIN_DELAY = 16L * 6
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private const val ANIM_TEXT_MOVEDOWN_FROM = 0.0f
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private const val ANIM_TEXT_MOVEDOWN_TO = 4.4f
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private const val ANIM_TEXT_MOVEDOWN_DURATION = 66L
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private const val ANIM_TEXT_MOVEDOWN_DELAY = 16L * 6
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private const val ANIM_TEXT_MOVEUP_FROM = 4.4f
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private const val ANIM_TEXT_MOVEUP_TO = 0.0f
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private const val ANIM_TEXT_MOVEUP_DURATION = 66L
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}
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}
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