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@ -16,24 +16,20 @@ import kotlinx.android.synthetic.main.mozac_ui_tabcounter_layout.view.*
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import org.mozilla.fenix.R
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import java.text.NumberFormat
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open class TabCounter @JvmOverloads constructor(
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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 animationSet: AnimatorSet
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private var count: Int = 0
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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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val shiftThreeDp = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_DIP, TWO_DIGIT_PADDING, context.resources.displayMetrics
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).toInt()
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counter_text.setPadding(0, shiftThreeDp, shiftThreeDp, 0)
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updateContentDescription(0)
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// This is needed because without this counter box will be empty.
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setCount(INTERNAL_COUNT)
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animationSet = createAnimatorSet()
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}
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@ -47,29 +43,15 @@ open class TabCounter @JvmOverloads constructor(
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}
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fun setCountWithAnimation(count: Int) {
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updateContentDescription(count)
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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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setCount(count)
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if (this.count == count) {
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return
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// No need to animate on these cases.
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when {
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INTERNAL_COUNT == 0 -> return // Initial state.
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INTERNAL_COUNT == count -> return // There isn't any tab added or removed.
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INTERNAL_COUNT > MAX_VISIBLE_TABS -> return // There are still over MAX_VISIBLE_TABS tabs open.
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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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counter_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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@ -81,9 +63,8 @@ open class TabCounter @JvmOverloads constructor(
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fun setCount(count: Int) {
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updateContentDescription(count)
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adjustTextSize(count)
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counter_text.text = formatForDisplay(count)
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this.count = count
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INTERNAL_COUNT = count
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}
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private fun createAnimatorSet(): AnimatorSet {
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@ -197,7 +178,7 @@ open class TabCounter @JvmOverloads constructor(
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private fun formatForDisplay(count: Int): String {
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return if (count > MAX_VISIBLE_TABS) {
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counter_text.setPadding(0,0,0,6)
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counter_text.setPadding(0, 0, 0, INFINITE_CHAR_PADDING_BOTTOM)
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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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@ -217,13 +198,16 @@ open class TabCounter @JvmOverloads constructor(
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}
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companion object {
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internal var INTERNAL_COUNT = 0
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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 INFINITE_CHAR_PADDING_BOTTOM = 6
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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_DIGIT_PADDING = 3F
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internal const val TWO_DIGITS_TAB_COUNT_THRESHOLD = 10
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// createBoxAnimatorSet
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