Initial commit

wikipedia/.gitignore

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+/build

wikipedia/build.gradle.kts

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+plugins {
+    id("com.android.library")
+    id("kotlin-android")
+    id("kotlin-android-extensions")
+}
+
+android {
+    compileSdk = sdk.versions.compileSdk.get().toInt()
+
+    defaultConfig {
+        minSdk = sdk.versions.minSdk.get().toInt()
+        targetSdk = sdk.versions.targetSdk.get().toInt()
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                    getDefaultProguardFile("proguard-android-optimize.txt"),
+                    "proguard-rules.pro"
+            )
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+dependencies {
+    implementation(libs.bundles.kotlin)
+    implementation(libs.androidx.core)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.androidx.browser)
+
+    implementation(libs.bundles.androidx.lifecycle)
+
+    implementation(libs.okhttp)
+    implementation(libs.bundles.retrofit)
+
+    implementation(project(":preferences"))
+    implementation(project(":search"))
+    implementation(project(":base"))
+    implementation(project(":crashreporter"))
+
+}

wikipedia/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.kts.kts.kts.kts.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

wikipedia/readme.md

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+# :wikipedia
+
+Provides Wikipedia search. In theory every Mediawiki instance could be used instead of Wikipedia.
+The URL is set in `@string/wikipedia_url` in the `:i18n` module.

wikipedia/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="de.mm20.launcher2.wikipedia">
+
+    /
+</manifest>

wikipedia/src/main/java/de/mm20/launcher2/search/data/Wikipedia.kt

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+package de.mm20.launcher2.search.data
+
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
+import android.net.Uri
+import android.os.Bundle
+import android.text.Spanned
+import androidx.browser.customtabs.CustomTabsIntent
+import androidx.core.text.HtmlCompat
+import androidx.core.text.toHtml
+import de.mm20.launcher2.wikipedia.R
+import de.mm20.launcher2.icons.LauncherIcon
+import de.mm20.launcher2.helper.NetworkUtils
+import de.mm20.launcher2.preferences.LauncherPreferences
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.json.JSONException
+import org.json.JSONObject
+import java.io.IOException
+import kotlin.math.min
+
+class Wikipedia(
+        override val label: String,
+        val id: Long,
+        val text: String,
+        val image: String?
+) : Searchable() {
+    override val key = "wikipedia://$id"
+
+    override suspend fun loadIconAsync(context: Context, size: Int): LauncherIcon? {
+        return null
+    }
+
+    override fun getPlaceholderIcon(context: Context): LauncherIcon {
+        return LauncherIcon(
+                foreground = context.getDrawable(R.drawable.ic_wikipedia)!!,
+                background = ColorDrawable(0xFFF0F0F0.toInt())
+        )
+    }
+
+    override fun getLaunchIntent(context: Context): Intent? {
+        val intent = CustomTabsIntent
+                .Builder()
+                .setToolbarColor(Color.BLACK)
+                .enableUrlBarHiding()
+                .setShowTitle(true)
+                .build()
+        val uri = "${context.getString(R.string.wikipedia_url)}/wiki?curid=$id"
+        intent.intent.data = Uri.parse(uri)
+        return intent.intent
+    }
+
+    override fun serialize(): String {
+        val json = JSONObject()
+        json.put("label", label)
+        json.put("text", text)
+        json.put("id", id)
+        json.put("image", image)
+        return json.toString()
+    }
+
+    companion object {
+
+        fun search(context: Context, query: String, client: OkHttpClient): Wikipedia? {
+            mutableListOf<Searchable>()
+            if (query.length < 4) return null
+            val prefs = LauncherPreferences.instance
+            if (!prefs.searchWikipedia ||
+                    NetworkUtils.isOffline(context, prefs.searchWikipediaMobileData)) return null
+            val url = (context.getString(R.string.wikipedia_url) + "/w/api.php?action=query&"
+                    + "generator=search&redirects=true&gsrlimit=1&prop=extracts&format=json&gsrsearch="
+                    + query)
+            val request = Request.Builder()
+                    .url(url)
+                    .tag("onlinesearch")
+                    .build()
+            try {
+                val response = client.newCall(request).execute()
+                val json = JSONObject(response.body?.string() ?: return null)
+                val pages = json.getJSONObject("query")
+                        .getJSONObject("pages")
+                val it = pages.keys()
+                if (it.hasNext()) {
+                    val key = it.next()
+                    val id = pages.getJSONObject(key).getLong("pageid")
+                    val title = pages.getJSONObject(key).getString("title")
+                    val text = pages.getJSONObject(key).getString("extract").also{
+                        it.substring(0, min(500, it.length)) + "…"
+                    }
+                    val image = getArticleImage(context, id, client)
+                    return Wikipedia(
+                            label = title,
+                            text = text,
+                            id = id,
+                            image = image
+                    )
+                }
+            } catch (e: IOException) {
+            } catch (e: JSONException) {
+            }
+
+            return null
+        }
+
+        private fun getArticleImage(context: Context, id: Long, client: OkHttpClient): String? {
+            if (!LauncherPreferences.instance.searchWikipediaPictures) return null
+            val width = context.resources.displayMetrics.widthPixels / 2
+            val url = (context.getString(R.string.wikipedia_url) + "/w/api.php?action=query&"
+                    + "prop=pageimages&format=json&pageids=$id&pithumbsize=$width")
+            val request = Request.Builder()
+                    .url(url)
+                    .tag("onlinesearch")
+                    .build()
+            val response = client.newCall(request).execute()
+            val json = JSONObject(response.body?.string() ?: return null)
+            return json.getJSONObject("query")
+                    .getJSONObject("pages")
+                    .getJSONObject(id.toString())
+                    .optJSONObject("thumbnail")
+                    ?.getString("source")
+        }
+
+        fun deserialize(serialized: String): Wikipedia {
+            val json = JSONObject(serialized)
+            return Wikipedia(
+                    label = json.getString("label"),
+                    text = json.getString("text"),
+                    id = json.getLong("id"),
+                    image = json.optString("image")
+            )
+        }
+    }
+}

wikipedia/src/main/java/de/mm20/launcher2/wikipedia/WikipediaApi.kt

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+package de.mm20.launcher2.wikipedia
+
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+data class WikipediaSearchResult(
+    val query: WikipediaSearchResultQuery?,
+)
+
+data class WikipediaSearchResultQuery(
+    val pages: Map<String, WikipediaSearchResultQueryPage>,
+)
+
+data class WikipediaSearchResultQueryPage(
+    val pageid: Long,
+    val title: String,
+    val extract: String,
+)
+
+data class WikipediaGetPageImageResult(
+    val query: WikipediaGetPageImageResultQuery?,
+)
+
+data class WikipediaGetPageImageResultQuery(
+    val pages: Map<String, WikipediaGetPageImageResultQueryPage>
+)
+
+data class WikipediaGetPageImageResultQueryPage(
+    val thumbnail: WikipediaGetPageImageResultQueryPageThumnail?
+)
+
+data class WikipediaGetPageImageResultQueryPageThumnail(
+    val source: String
+)
+
+interface WikipediaApi {
+    @GET("w/api.php?action=query&generator=search&redirects=true&gsrlimit=1&explaintext=true&exchars=500&prop=extracts&exintro=true&format=json")
+    suspend fun search(@Query("gsrsearch") query: String): WikipediaSearchResult
+
+    @GET("w/api.php?action=query&prop=pageimages&format=json")
+    suspend fun getPageImage(@Query("pageids") pageId: Long, @Query("pithumbsize") thumbnailSize: Int): WikipediaGetPageImageResult
+}

wikipedia/src/main/java/de/mm20/launcher2/wikipedia/WikipediaRepository.kt

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+package de.mm20.launcher2.wikipedia
+
+import android.content.Context
+import androidx.core.text.HtmlCompat
+import androidx.lifecycle.MutableLiveData
+import de.mm20.launcher2.crashreporter.CrashReporter
+import de.mm20.launcher2.preferences.LauncherPreferences
+import de.mm20.launcher2.search.BaseSearchableRepository
+import de.mm20.launcher2.search.data.Wikipedia
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.io.IOException
+import java.util.concurrent.TimeUnit
+import kotlin.math.min
+
+class WikipediaRepository private constructor(val context: Context) : BaseSearchableRepository() {
+
+    val wikipedia = MutableLiveData<Wikipedia?>()
+
+    private val httpClient by lazy {
+        OkHttpClient
+            .Builder()
+            .connectTimeout(200, TimeUnit.MILLISECONDS)
+            .readTimeout(3000, TimeUnit.MILLISECONDS)
+            .writeTimeout(1000, TimeUnit.MILLISECONDS)
+            .build()
+    }
+
+    val retrofit by lazy {
+        Retrofit.Builder()
+            .client(httpClient)
+            .baseUrl(context.getString(R.string.wikipedia_url))
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+    }
+
+    val wikipediaService by lazy {
+        retrofit.create(WikipediaApi::class.java)
+    }
+
+    override fun onCancel() {
+        super.onCancel()
+
+        httpClient.dispatcher.run {
+            runningCalls().forEach {
+                it.cancel()
+            }
+            queuedCalls().forEach {
+                it.cancel()
+            }
+        }
+    }
+
+    override suspend fun search(query: String) {
+        wikipedia.value = null
+        if (query.isBlank()) return
+
+        val result = try {
+            wikipediaService.search(query)
+        } catch (e: Exception) {
+            CrashReporter.logException(e)
+            return
+        }
+
+        val page = result.query?.pages?.values?.toList()?.getOrNull(0) ?: return
+
+        val image = if (LauncherPreferences.instance.searchWikipediaPictures) {
+            val width = context.resources.displayMetrics.widthPixels / 2
+            val imageResult = try {
+                wikipediaService.getPageImage(page.pageid, width)
+            } catch (e: Exception) {
+                CrashReporter.logException(e)
+                return
+            }
+            imageResult.query?.pages?.values?.toList()?.getOrNull(0)?.thumbnail?.source
+        } else null
+
+        val wiki = Wikipedia(
+            label = page.title,
+            id = page.pageid,
+            text = page.extract,
+            image = image
+        )
+
+        wikipedia.value = wiki
+    }
+
+    companion object {
+        private lateinit var instance: WikipediaRepository
+
+        fun getInstance(context: Context): WikipediaRepository {
+            if (!::instance.isInitialized) instance =
+                WikipediaRepository(context.applicationContext)
+            return instance
+        }
+    }
+}

wikipedia/src/main/java/de/mm20/launcher2/wikipedia/WikipediaViewModel.kt

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+package de.mm20.launcher2.wikipedia
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import de.mm20.launcher2.search.data.Wikipedia
+
+class WikipediaViewModel(val app: Application): AndroidViewModel(app) {
+    val wikipedia: LiveData<Wikipedia?> = WikipediaRepository.getInstance(app).wikipedia
+}