Add an experimental integration with Flows

Currently the only Flow will emit the status of the load along with the current placeholder or resource, clearing the request when the Flow ends. In future versions we might consider making clearing the target optional so that resources could be used after the flow is over. We could also expose some additional helper functions to make it easier to work with the first run of a flow, or to exclude placeholders. For now this seems like a reasonable starting point.

gradle.properties

@@ -57,13 +57,16 @@ ANDROID_X_TEST_CORE_VERSION=1.4.0
 ANDROID_X_TEST_JUNIT_VERSION=1.1.3
 ANDROID_X_TEST_RULES_VERSION=1.4.0
 ANDROID_X_TEST_RUNNER_VERSION=1.4.0
+ANDROID_X_TEST_CORE_KTX_VERSION=1.4.0
+ANDROID_X_TEST_JUNIT_KTX_VERSION=1.1.3
 ANDROID_X_TRACING_VERSION=1.0.0
 ANDROID_X_VECTOR_DRAWABLE_ANIMATED_VERSION=1.1.0
 ANDROID_X_CORE_KTX_VERSION=1.8.0
 ANDROID_X_LIFECYCLE_KTX_VERSION=2.4.1
 
 # org.jetbrains versions
-JETBRAINS_KOTLINX_COROUTINES_VERSION=1.6.3
+JETBRAINS_KOTLINX_COROUTINES_VERSION=1.6.4
+JETBRAINS_KOTLINX_COROUTINES_TEST_VERSION=1.6.4
 JETBRAINS_KOTLIN_VERSION=1.7.0
 JETBRAINS_KOTLIN_TEST_VERSION=1.7.0
 
@@ -86,6 +89,6 @@ MOCKWEBSERVER_VERSION=3.0.0-RC1
 OK_HTTP_VERSION=3.10.0
 PMD_VERSION=6.0.0
 ROBOLECTRIC_VERSION=4.8.1
-TRUTH_VERSION=0.45
+TRUTH_VERSION=1.1.3
 VIOLATIONS_PLUGIN_VERSION=1.8
 VOLLEY_VERSION=1.2.0

integration/ktx/build.gradle

@@ -0,0 +1,54 @@
+plugins {
+    id 'com.android.library'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk COMPILE_SDK_VERSION as int
+
+    defaultConfig {
+        minSdk MIN_SDK_VERSION as int
+        targetSdk TARGET_SDK_VERSION as int
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_7
+        targetCompatibility JavaVersion.VERSION_1_7
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+// Enable strict mode, but exclude tests.
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile) {
+    if (!it.name.contains("Test")) {
+        kotlinOptions.freeCompilerArgs += "-Xexplicit-api=strict"
+    }
+}
+
+dependencies {
+    api project(":library")
+    implementation "androidx.core:core-ktx:$ANDROID_X_CORE_KTX_VERSION"
+    implementation "androidx.test:core-ktx:$ANDROID_X_TEST_CORE_KTX_VERSION"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$JETBRAINS_KOTLINX_COROUTINES_VERSION"
+    testImplementation "androidx.test.ext:junit-ktx:$ANDROID_X_TEST_JUNIT_KTX_VERSION"
+    testImplementation "androidx.test.ext:junit:$ANDROID_X_TEST_JUNIT_VERSION"
+    testImplementation "org.robolectric:robolectric:$ROBOLECTRIC_VERSION"
+    testImplementation "androidx.test:runner:$ANDROID_X_TEST_RUNNER_VERSION"
+    testImplementation "junit:junit:$JUNIT_VERSION"
+    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$JETBRAINS_KOTLINX_COROUTINES_TEST_VERSION"
+    testImplementation "com.google.truth:truth:$TRUTH_VERSION"
+    androidTestImplementation "androidx.test.ext:junit:$ANDROID_X_TEST_JUNIT_VERSION"
+}
+
+apply from: "${rootProject.projectDir}/scripts/upload.gradle"

integration/ktx/gradle.properties

@@ -0,0 +1,9 @@
+POM_NAME=Glide Kotlin Extensions
+POM_ARTIFACT_ID=ktx
+POM_PACKAGING=aar
+POM_DESCRIPTION=An integration library to improve Kotlin interop with Glide
+
+VERSION_MAJOR=1
+VERSION_MINOR=0
+VERSION_PATCH=0
+VERSION_NAME=1.0.0-alpha.0-SNAPSHOT

integration/ktx/src/main/AndroidManifest.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="com.bumptech.glide.integration.ktx" />

integration/ktx/src/main/java/com/bumptech/glide/GlideIntegration.kt

@@ -0,0 +1,19 @@
+/**
+ * Functions that give us access to some of Glide's non-public internals to make the flows API a bit
+ * better.
+ */
+package com.bumptech.glide
+
+import com.bumptech.glide.request.RequestListener
+import com.bumptech.glide.request.target.Target
+
+internal fun RequestBuilder<*>.requestManager() = this.requestManager
+
+internal fun <ResourceT, TargetAndRequestListenerT> RequestBuilder<ResourceT>.intoDirect(
+  targetAndRequestListener: TargetAndRequestListenerT,
+) where TargetAndRequestListenerT : Target<ResourceT>,
+        TargetAndRequestListenerT : RequestListener<ResourceT>  {
+  this.into(targetAndRequestListener, targetAndRequestListener) {
+    it.run()
+  }
+}