aboutsummaryrefslogtreecommitdiff
path: root/app/src/main/kotlin/com/pitchedapps/frost/web/FrostJSI.kt
blob: 4d92e8c28b945dce54a3f6aa1d5ed4d373b23f8c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/*
 * 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.app.Activity
import android.webkit.JavascriptInterface
import ca.allanwang.kau.utils.ctxCoroutine
import com.pitchedapps.frost.activities.MainActivity
import com.pitchedapps.frost.activities.WebOverlayActivityBase
import com.pitchedapps.frost.contracts.VideoViewHolder
import com.pitchedapps.frost.db.CookieEntity
import com.pitchedapps.frost.facebook.FbCookie
import com.pitchedapps.frost.prefs.Prefs
import com.pitchedapps.frost.utils.L
import com.pitchedapps.frost.utils.WebContext
import com.pitchedapps.frost.utils.cookies
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.launch
import javax.inject.Inject

/**
 * Created by Allan Wang on 2017-06-01.
 */
@FrostWebScoped
class FrostJSI @Inject internal constructor(
    val web: FrostWebView,
    private val activity: Activity,
    private val fbCookie: FbCookie,
    private val prefs: Prefs,
    @FrostRefresh private val refreshEmit: FrostEmitter<Boolean>
) {

    private val mainActivity: MainActivity? = activity as? MainActivity
    private val webActivity: WebOverlayActivityBase? = activity as? WebOverlayActivityBase
    private val headerEmit: FrostEmitter<String>? = mainActivity?.headerEmit
    private val cookies: List<CookieEntity> = activity.cookies()

    /**
     * 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 {
                (activity 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 {
            activity.showWebContextMenu(
                WebContext(url.takeIf { it.isIndependent }, text),
                fbCookie,
                prefs
            )
        }
    }

    /**
     * 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) {
        mainActivity?.contentBinding?.viewpager?.enableSwipe = !start
        if (web.frostWebClient.urlSupportsRefresh) {
            web.parent.swipeDisabledByAction = start
        }
    }

    /**
     * Allow or disallow the pull down to refresh action
     */
    @JavascriptInterface
    fun disableSwipeRefresh(disable: Boolean) {
        if (!web.frostWebClient.urlSupportsRefresh) {
            return
        }
        web.parent.swipeDisabledByAction = disable
        if (disable) {
            // locked onto an input field; ensure content is visible
            mainActivity?.collapseAppBar()
        }
    }

    @JavascriptInterface
    fun loadLogin() {
        L.d { "Sign up button found; load login" }
        activity.ctxCoroutine.launch {
            fbCookie.logout(activity, deleteCookie = false)
        }
    }

    /**
     * Launch image overlay
     */
    @JavascriptInterface
    fun loadImage(imageUrl: String, text: String?) {
        activity.launchImageActivity(imageUrl, text)
    }

    @JavascriptInterface
    fun emit(flag: Int) {
        web.post { web.frostWebClient.emit(flag) }
    }

    @JavascriptInterface
    fun isReady() {
        if (web.frostWebClient !is FrostWebViewClientMenu) {
            L.v { "JSI is ready" }
            refreshEmit(false)
        }
    }

    @JavascriptInterface
    fun handleHtml(html: String?) {
        html ?: return
        web.post { web.frostWebClient.handleHtml(html) }
    }

    @JavascriptInterface
    fun handleHeader(html: String?) {
        html ?: return
        headerEmit?.invoke(html)
    }

    @JavascriptInterface
    fun allowHorizontalScrolling(enable: Boolean) {
        mainActivity?.contentBinding?.viewpager?.enableSwipe = enable
        webActivity?.swipeBack?.disallowIntercept = !enable
    }

    private var isScrolling = false

    @JavascriptInterface
    fun setScrolling(scrolling: Boolean) {
        L.v { "Scrolling $scrolling" }
        this.isScrolling = scrolling
    }

    @JavascriptInterface
    fun isScrolling(): Boolean = isScrolling
}