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/*
* Copyright 2018 Allan Wang
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.pitchedapps.frost.web
import android.content.Context
import android.webkit.JavascriptInterface
import com.pitchedapps.frost.activities.MainActivity
import com.pitchedapps.frost.activities.WebOverlayActivityBase
import com.pitchedapps.frost.contracts.MainActivityContract
import com.pitchedapps.frost.contracts.VideoViewHolder
import com.pitchedapps.frost.db.CookieEntity
import com.pitchedapps.frost.facebook.FbCookie
import com.pitchedapps.frost.utils.L
import com.pitchedapps.frost.utils.Prefs
import com.pitchedapps.frost.utils.WebContext
import com.pitchedapps.frost.utils.cookies
import com.pitchedapps.frost.utils.ctxCoroutine
import com.pitchedapps.frost.utils.isIndependent
import com.pitchedapps.frost.utils.launchImageActivity
import com.pitchedapps.frost.utils.showWebContextMenu
import com.pitchedapps.frost.views.FrostWebView
import kotlinx.coroutines.channels.SendChannel
import kotlinx.coroutines.launch
/**
* Created by Allan Wang on 2017-06-01.
*/
class FrostJSI(val web: FrostWebView) {
private val context: Context = web.context
private val activity: MainActivity? = context as? MainActivity
private val header: SendChannel<String>? = activity?.headerBadgeChannel
private val refresh: SendChannel<Boolean> = web.parent.refreshChannel
private val cookies: List<CookieEntity> = activity?.cookies() ?: arrayListOf()
/**
* Attempts to load the url in an overlay
* Returns {@code true} if successful, meaning the event is consumed,
* or {@code false} otherwise, meaning the event should be propagated
*/
@JavascriptInterface
fun loadUrl(url: String?): Boolean = if (url == null) false else web.requestWebOverlay(url)
@JavascriptInterface
fun loadVideo(url: String?, isGif: Boolean): Boolean =
if (url != null && Prefs.enablePip) {
web.post {
(context as? VideoViewHolder)?.showVideo(url, isGif)
?: L.e { "Could not load video; contract not implemented" }
}
true
} else {
false
}
@JavascriptInterface
fun reloadBaseUrl(animate: Boolean) {
L.d { "FrostJSI reload" }
web.post {
web.stopLoading()
web.reloadBase(animate)
}
}
@JavascriptInterface
fun contextMenu(url: String?, text: String?) {
// url will be formatted through webcontext
web.post { context.showWebContextMenu(WebContext(url.takeIf { it.isIndependent }, text)) }
}
/**
* Get notified when a stationary long click starts or ends
* This will be used to toggle the main activities viewpager swipe
*/
@JavascriptInterface
fun longClick(start: Boolean) {
activity?.contentBinding?.viewpager?.enableSwipe = !start
if (web.frostWebClient.urlSupportsRefresh) {
web.parent.swipeEnabled = !start
}
}
/**
* Allow or disallow the pull down to refresh action
*/
@JavascriptInterface
fun disableSwipeRefresh(disable: Boolean) {
if (!web.frostWebClient.urlSupportsRefresh) {
return
}
web.parent.swipeEnabled = !disable
if (disable) {
// locked onto an input field; ensure content is visible
(context as? MainActivityContract)?.collapseAppBar()
}
}
@JavascriptInterface
fun loadLogin() {
L.d { "Sign up button found; load login" }
context.ctxCoroutine.launch {
FbCookie.logout(context)
}
}
/**
* Launch image overlay
*/
@JavascriptInterface
fun loadImage(imageUrl: String, text: String?) {
context.launchImageActivity(imageUrl, text)
}
@JavascriptInterface
fun emit(flag: Int) {
web.post { web.frostWebClient.emit(flag) }
}
@JavascriptInterface
fun isReady() {
if (web.frostWebClient !is FrostWebViewClientMenu) {
refresh.offer(false)
}
}
@JavascriptInterface
fun handleHtml(html: String?) {
html ?: return
web.post { web.frostWebClient.handleHtml(html) }
}
@JavascriptInterface
fun handleHeader(html: String?) {
html ?: return
header?.offer(html)
}
@JavascriptInterface
fun allowHorizontalScrolling(enable: Boolean) {
activity?.contentBinding?.viewpager?.enableSwipe = enable
(context as? WebOverlayActivityBase)?.swipeBack?.disallowIntercept = !enable
}
}
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