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fenix/app/src/main/java/org/mozilla/fenix/home/sessioncontrol/viewholders/onboarding/OnboardingPrivateBrowsingVi...

65 lines
2.3 KiB
Kotlin

/* This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.fenix.home.sessioncontrol.viewholders.onboarding
import android.graphics.Canvas
import android.graphics.Paint
import android.text.SpannableString
import android.text.Spanned
import android.text.style.ImageSpan
import android.view.View
import androidx.appcompat.content.res.AppCompatResources
import androidx.recyclerview.widget.RecyclerView
import kotlinx.android.synthetic.main.onboarding_private_browsing.view.*
import org.mozilla.fenix.R
class OnboardingPrivateBrowsingViewHolder(view: View) : RecyclerView.ViewHolder(view) {
init {
val iconDrawable = AppCompatResources.getDrawable(view.context, R.drawable.ic_private_browsing)!!
iconDrawable.setBounds(0, 0, view.description_text.lineHeight, view.description_text.lineHeight)
val icon = object : ImageSpan(iconDrawable) {
override fun draw(
canvas: Canvas,
text: CharSequence?,
start: Int,
end: Int,
x: Float,
top: Int,
y: Int,
bottom: Int,
paint: Paint
) {
canvas.save()
val fmPaint = paint.fontMetricsInt
val fontHeight = fmPaint.descent - fmPaint.ascent
val centerY = y + fmPaint.descent - fontHeight / 2
val transY = (centerY - (drawable.bounds.bottom - drawable.bounds.top) / 2).toFloat()
canvas.translate(x, transY)
drawable.draw(canvas)
canvas.restore()
}
}
val text = SpannableString(view.context.getString(R.string.onboarding_private_browsing_description))
val spanStartIndex = text.indexOf(IMAGE_PLACEHOLDER)
text.setSpan(
icon,
spanStartIndex,
spanStartIndex + IMAGE_PLACEHOLDER.length,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
)
view.description_text.text = text
}
companion object {
const val IMAGE_PLACEHOLDER = "%s"
const val LAYOUT_ID = R.layout.onboarding_private_browsing
}
}