Initial commit

This initial commit includes HUSH specific changes starting at this commit:
d14637012c

qrecycler/.gitignore

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+/build

qrecycler/build.gradle

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+import cash.z.ecc.android.Deps
+
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion Deps.compileSdkVersion
+
+    defaultConfig {
+        minSdkVersion Deps.minSdkVersion
+        targetSdkVersion Deps.targetSdkVersion
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    namespace 'cash.z.android.qrecycler'
+
+}
+
+dependencies {
+    implementation Deps.AndroidX.CORE_KTX
+    implementation Deps.Kotlin.STDLIB
+
+    // dependencies specific to this module, not shared with other modules
+    implementation Deps.Misc.Plugins.QR_SCANNER
+}

qrecycler/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.
+#
+# 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

qrecycler/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-permission android:name="android.permission.CAMERA" />
+</manifest>

qrecycler/src/main/java/cash/z/android/qrecycler/QRecycler.kt

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+package cash.z.android.qrecycler
+
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.widget.ImageView
+import androidx.core.view.doOnLayout
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.EncodeHintType.ERROR_CORRECTION
+import com.google.zxing.EncodeHintType.MARGIN
+import com.google.zxing.qrcode.QRCodeWriter
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel.*
+
+
+class QRecycler {
+    fun load(content: String): Builder {
+        return Builder(content)
+    }
+
+    // TODO: make this call async such that action can be taken once it is complete
+    fun encode(builder: Builder) {
+        builder.target.doOnLayout { measuredView ->
+            val w = measuredView.width
+            val h = measuredView.height
+            val hints = mapOf(ERROR_CORRECTION to builder.errorCorrection, MARGIN to builder.quietZone)
+            val bitMatrix = QRCodeWriter().encode(builder.content, BarcodeFormat.QR_CODE, w, h, hints)
+            val pixels = IntArray(w * h)
+            for (y in 0 until h) {
+                val offset = y * w
+                for (x in 0 until w) {
+                    pixels[offset + x] = if (bitMatrix.get(x, y)) Color.BLACK else Color.WHITE
+                }
+            }
+            // TODO: RECYCLE THIS BITMAP MEMORY!!! Do it in a way that is lifecycle-aware and disposes of the memory when the fragment is off-screen
+            val bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888)
+            bitmap.setPixels(pixels, 0, w, 0, 0, w, h)
+            (measuredView as ImageView).setImageBitmap(bitmap)
+        }
+    }
+
+    inner class Builder(val content: String) {
+        lateinit var target: ImageView
+        var errorCorrection: ErrorCorrectionLevel = Q
+        var quietZone: Int = 4
+        fun into(imageView: ImageView) {
+            target = imageView
+            encode(this)
+        }
+        fun withQuietZoneSize(customQuietZone: Int): Builder {
+            quietZone = customQuietZone
+            return this
+        }
+        fun withCorrectionLevel(level: CorrectionLevel): Builder {
+            errorCorrection = level.errorCorrectionLevel
+            return this
+        }
+    }
+
+    enum class CorrectionLevel(val errorCorrectionLevel: ErrorCorrectionLevel) {
+        LOW(L), DEFAULT(M), MEDIUM(Q), HIGH(H);
+    }
+}

qrecycler/src/main/java/cash/z/android/qrecycler/QScanner.kt

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+package cash.z.android.qrecycler
+
+/**
+ * An interface to allow for plugging in any scanner
+ */
+interface QScanner {
+    fun scanBarcode(callback: (Result<String>) -> Unit)
+}

qrecycler/src/main/res/layout/texture_view.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2016 The Android Open Source Project
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+         http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <TextureView
+        android:id="@+id/texture_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        />
+
+</merge>

qrecycler/src/main/res/values/attrs.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2016 The Android Open Source Project
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+         http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+    <declare-styleable name="CameraView">
+        <!--
+          Set this to true if you want the CameraView to adjust its bounds to preserve the aspect
+          ratio of its camera preview.
+        -->
+        <attr name="android:adjustViewBounds"/>
+        <!-- Direction the camera faces relative to device screen. -->
+        <attr name="facing" format="enum">
+            <!-- The camera device faces the opposite direction as the device's screen. -->
+            <enum name="back" value="0"/>
+            <!-- The camera device faces the same direction as the device's screen. -->
+            <enum name="front" value="1"/>
+        </attr>
+        <!-- Aspect ratio of camera preview and pictures. -->
+        <attr name="aspectRatio" format="string"/>
+        <!-- Continuous auto focus mode. -->
+        <attr name="autoFocus" format="boolean"/>
+        <!-- The flash mode. -->
+        <attr name="flash" format="enum">
+            <!-- Flash will not be fired. -->
+            <enum name="off" value="0"/>
+            <!--
+              Flash will always be fired during snapshot.
+              The flash may also be fired during preview or auto-focus depending on the driver.
+            -->
+            <enum name="on" value="1"/>
+            <!--
+              Constant emission of light during preview, auto-focus and snapshot.
+              This can also be used for video recording.
+            -->
+            <enum name="torch" value="2"/>
+            <!--
+              Flash will be fired automatically when required.
+              The flash may be fired during preview, auto-focus, or snapshot depending on the
+              driver.
+            -->
+            <enum name="auto" value="3"/>
+            <!--
+              Flash will be fired in red-eye reduction mode.
+            -->
+            <enum name="redEye" value="4"/>
+        </attr>
+    </declare-styleable>
+</resources>

qrecycler/src/main/res/values/public.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2016 The Android Open Source Project
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+         http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+    <public name="facing" type="attr"/>
+    <public name="aspectRatio" type="attr"/>
+    <public name="autoFocus" type="attr"/>
+    <public name="flash" type="attr"/>
+
+    <public name="Widget.CameraView" type="style"/>
+</resources>

qrecycler/src/main/res/values/strings.xml

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+<resources>
+</resources>

qrecycler/src/main/res/values/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2016 The Android Open Source Project
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+         http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+
+    <style name="Widget.CameraView" parent="android:Widget">
+        <item name="android:adjustViewBounds">false</item>
+        <item name="facing">back</item>
+        <item name="aspectRatio">4:3</item>
+        <item name="autoFocus">true</item>
+        <item name="flash">auto</item>
+    </style>
+
+</resources>