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fenix/app/src/main/java/org/mozilla/fenix/components/toolbar/TabCounterToolbarButton.kt

99 lines
3.1 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.components.toolbar
import android.content.Context
import android.util.TypedValue
import android.view.View
import android.view.ViewGroup
import mozilla.components.browser.session.Session
import mozilla.components.browser.session.SessionManager
import mozilla.components.concept.toolbar.Toolbar
import org.mozilla.fenix.R
import org.mozilla.fenix.ext.sessionsOfType
import java.lang.ref.WeakReference
/**
* A [Toolbar.Action] implementation that shows a [TabCounter].
*/
class TabCounterToolbarButton(
private val sessionManager: SessionManager,
private val isPrivate: Boolean,
private val showTabs: () -> Unit
) : Toolbar.Action {
private var reference: WeakReference<TabCounter> = WeakReference<TabCounter>(null)
override fun createView(parent: ViewGroup): View {
sessionManager.register(sessionManagerObserver, view = parent)
val view = TabCounter(parent.context).apply {
reference = WeakReference(this)
setOnClickListener {
showTabs.invoke()
}
val count = sessionManager.sessions.count {
it.private == isPrivate
}
contentDescription = getDescriptionForTabCount(context, count)
addOnAttachStateChangeListener(object : View.OnAttachStateChangeListener {
override fun onViewAttachedToWindow(v: View?) {
setCount(sessionManager.sessionsOfType(private = isPrivate).count())
}
override fun onViewDetachedFromWindow(v: View?) { /* no-op */ }
})
}
// Set selectableItemBackgroundBorderless
val outValue = TypedValue()
parent.context.theme.resolveAttribute(
android.R.attr.selectableItemBackgroundBorderless,
outValue,
true
)
view.setBackgroundResource(outValue.resourceId)
return view
}
override fun bind(view: View) = Unit
private fun updateCount() {
val count = sessionManager.sessionsOfType(private = isPrivate).count()
reference.get()?.let {
it.contentDescription = getDescriptionForTabCount(it.context, count)
it.setCountWithAnimation(count)
}
}
private fun getDescriptionForTabCount(context: Context?, count: Int): String? {
return if (count > 1) context?.getString(
R.string.tab_counter_content_description_multi_tab,
count
) else context?.getString(R.string.tab_counter_content_description_one_tab)
}
private val sessionManagerObserver = object : SessionManager.Observer {
override fun onSessionAdded(session: Session) {
updateCount()
}
override fun onSessionRemoved(session: Session) {
updateCount()
}
override fun onSessionsRestored() {
updateCount()
}
override fun onAllSessionsRemoved() {
updateCount()
}
}
}