From 273ecdd7cda306ac2aafc2a1af2ffea515d9a800 Mon Sep 17 00:00:00 2001
From: Dimitry Ivanov <di@noties.io>
Date: Mon, 21 Dec 2020 16:11:43 +0300
Subject: [PATCH] Sample, image click

---
 app-sample/samples.json                       | 13 ++++
 .../app/samples/image/ClickImageSample.kt     | 73 +++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 app-sample/src/main/java/io/noties/markwon/app/samples/image/ClickImageSample.kt

diff --git a/app-sample/samples.json b/app-sample/samples.json
index eb206642..36eb05a1 100644
--- a/app-sample/samples.json
+++ b/app-sample/samples.json
@@ -1,4 +1,17 @@
 [
+  {
+    "javaClassName": "io.noties.markwon.app.samples.image.ClickImageSample",
+    "id": "20201221130230",
+    "title": "Click images",
+    "description": "Make _all_ images clickable (to open in a gallery, etc)",
+    "artifacts": [
+      "IMAGE"
+    ],
+    "tags": [
+      "image",
+      "rendering"
+    ]
+  },
   {
     "javaClassName": "io.noties.markwon.app.samples.ChangeBulletSpanSample",
     "id": "20201208150530",
diff --git a/app-sample/src/main/java/io/noties/markwon/app/samples/image/ClickImageSample.kt b/app-sample/src/main/java/io/noties/markwon/app/samples/image/ClickImageSample.kt
new file mode 100644
index 00000000..e103dc5d
--- /dev/null
+++ b/app-sample/src/main/java/io/noties/markwon/app/samples/image/ClickImageSample.kt
@@ -0,0 +1,73 @@
+package io.noties.markwon.app.samples.image
+
+import android.view.View
+import io.noties.markwon.AbstractMarkwonPlugin
+import io.noties.markwon.LinkResolver
+import io.noties.markwon.Markwon
+import io.noties.markwon.MarkwonConfiguration
+import io.noties.markwon.MarkwonSpansFactory
+import io.noties.markwon.app.readme.GithubImageDestinationProcessor
+import io.noties.markwon.app.sample.Tags
+import io.noties.markwon.app.sample.ui.MarkwonTextViewSample
+import io.noties.markwon.app.utils.loadReadMe
+import io.noties.markwon.core.spans.LinkSpan
+import io.noties.markwon.image.ImageProps
+import io.noties.markwon.image.ImagesPlugin
+import io.noties.markwon.sample.annotations.MarkwonArtifact
+import io.noties.markwon.sample.annotations.MarkwonSampleInfo
+import org.commonmark.node.Image
+
+@MarkwonSampleInfo(
+  id = "20201221130230",
+  title = "Click images",
+  description = "Make _all_ images clickable (to open in a gallery, etc)",
+  artifacts = [MarkwonArtifact.IMAGE],
+  tags = [Tags.rendering, Tags.image]
+)
+class ClickImageSample : MarkwonTextViewSample() {
+  override fun render() {
+
+    val md = loadReadMe(context)
+
+    // please note that if an image is already inside a link, original link would be overriden
+
+    val markwon = Markwon.builder(context)
+      .usePlugin(ImagesPlugin.create())
+      .usePlugin(object : AbstractMarkwonPlugin() {
+        override fun configureConfiguration(builder: MarkwonConfiguration.Builder) {
+          builder.imageDestinationProcessor(GithubImageDestinationProcessor())
+        }
+      })
+      .usePlugin(object : AbstractMarkwonPlugin() {
+        override fun configureSpansFactory(builder: MarkwonSpansFactory.Builder) {
+          builder.appendFactory(Image::class.java) { configuration, props ->
+
+            // this is the destination of image, you can additionally process it
+            val url = ImageProps.DESTINATION.require(props)
+
+            LinkSpan(
+              configuration.theme(),
+              url,
+              ImageLinkResolver(configuration.linkResolver())
+            )
+          }
+        }
+      })
+      .build()
+
+    markwon.setMarkdown(textView, md)
+  }
+
+  class ImageLinkResolver(val original: LinkResolver) : LinkResolver {
+    override fun resolve(view: View, link: String) {
+      // decide if you want to open gallery or anything else,
+      //  here we just pass to original
+      if (false) {
+        // do your thing
+      } else {
+        // just use original
+        original.resolve(view, link)
+      }
+    }
+  }
+}
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