Added ability to load from assets

README.md

@@ -1,3 +1,5 @@
+![logo](./art/markwon_logo.png)
+
 # Markwon
 
 [![maven|markwon](https://img.shields.io/maven-central/v/ru.noties/markwon.svg?label=maven%7Cmarkwon)](http://search.maven.org/#search|ga|1|g%3A%22ru.noties%22%20AND%20a%3A%markwon%22)
@@ -40,6 +42,9 @@ compile 'ru.noties:markwon-image-loader:1.0.0' // optional
   * other inline html is rendered via (`Html.fromHtml(...)`)
 
 
+---
+
+
 ### Emphasis
 
 *Lorem ipsum dolor sit amet*
@@ -55,6 +60,9 @@ _Lorem ipsum dolor sit amet_
 <dfn>Lorem ipsum dolor sit amet</dfn>
 
 
+---
+
+
 ### Strong emphasis
 
 **Lorem ipsum dolor sit amet**
@@ -66,6 +74,9 @@ __Lorem ipsum dolor sit amet__
 <strong>Lorem ipsum dolor sit amet</strong>
 
 
+---
+
+
 ### Strike-through
 
 ~~Lorem ipsum dolor sit amet~~
@@ -97,9 +108,7 @@ __Lorem ipsum dolor sit amet__
 
 <a href="https://github.com">click me</a>
 
-
+---
-### Images
-// todo, normal ones & svg & gif
 
 
 ### Thematic break
@@ -114,6 +123,9 @@ ___
 >>> Lorem ipsum dolor sit amet
 
 
+---
+
+
 ### Ordered lists
 1. Lorem ipsum dolor sit amet
 2. Lorem ipsum dolor sit amet
@@ -123,6 +135,9 @@ ___
 3. Lorem ipsum dolor sit amet
 
 
+---
+
+
 ### Non-ordered lists
 * Lorem ipsum dolor sit amet
    * Lorem ipsum dolor sit amet
@@ -132,6 +147,9 @@ ___
 * Lorem ipsum dolor sit amet
 
 
+---
+
+
 ### Inline code
 `Lorem` ipsum dolor sit amet
 Lorem `ipsum` dolor sit amet
@@ -142,6 +160,9 @@ Lorem ipsum dolor sit `amet`
 `Lorem ipsum dolor sit amet`
 
 
+---
+
+
 ### Code block
 ```
 Lorem ipsum dolor sit amet
@@ -149,11 +170,16 @@ Lorem ipsum dolor sit amet
 Lorem ipsum dolor sit amet
 ```
 
+---
+
 
 ### H.T.M.L.
 <b>O</b><i>K<s>A</s><sup>42<sup>43<sub><b>42</b></sub></sup></sup><u>Y</u></i>
 
 
+---
+
+
 ### Tables
 Header #1 | Header #2 | Header #3
 ---: | :---: | :---
@@ -173,4 +199,4 @@ long long long skjfs fgjsdfhj sf `dfk df` | sdsd,fklsdfklsdfklsdfkl sdfkl dsfjks
 [github]: https://github.com
 
 [commonmark-java]: https://github.com/atlassian/commonmark-java/blob/master/README.md
-[library]: https://github.com/noties/Markwon/blob/master/README.md
+[library]: https://github.com/noties/Markwon/blob/master/library/README.md

app/src/main/assets/art/markwon_logo.png

@@ -0,0 +1 @@
+../../../../../art/markwon_logo.png

app/src/main/java/ru/noties/markwon/AppModule.java

@@ -42,6 +42,7 @@ class AppModule {
         return new OkHttpClient.Builder()
                 .cache(new Cache(app.getCacheDir(), 1024L * 20))
                 .followRedirects(true)
+                .retryOnConnectionFailure(true)
                 .build();
     }
 

app/src/main/java/ru/noties/markwon/MarkdownRenderer.java

@@ -6,17 +6,11 @@ import android.os.Handler;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
-import org.commonmark.ext.gfm.strikethrough.StrikethroughExtension;
-import org.commonmark.node.Node;
-import org.commonmark.parser.Parser;
-
-import java.util.Collections;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 
 import javax.inject.Inject;
 
-import ru.noties.markwon.renderer.SpannableRenderer;
 import ru.noties.markwon.spans.AsyncDrawable;
 
 @ActivityScope
@@ -53,7 +47,7 @@ public class MarkdownRenderer {
 
                 final UrlProcessor urlProcessor;
                 if (uri == null) {
-                    urlProcessor = null;
+                    urlProcessor = new UrlProcessorAndroidAssets();
                 } else {
                     urlProcessor = new UrlProcessorRelativeToAbsolute(uri.toString());
                 }

library-image-loader/build.gradle

@@ -14,7 +14,6 @@ android {
 }
 
 dependencies {
-
     compile project(':library')
     compile ANDROID_SVG
     compile ANDROID_GIF

library-image-loader/src/main/java/ru/noties/markwon/il/AsyncDrawableLoader.java

@@ -6,6 +6,7 @@ import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
+import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.NonNull;
@@ -14,7 +15,11 @@ import android.text.TextUtils;
 import com.caverock.androidsvg.SVG;
 import com.caverock.androidsvg.SVGParseException;
 
+import java.io.BufferedInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.ref.WeakReference;
@@ -46,6 +51,8 @@ public class AsyncDrawableLoader implements AsyncDrawable.Loader {
     private static final String CONTENT_TYPE_SVG = "image/svg+xml";
     private static final String CONTENT_TYPE_GIF = "image/gif";
 
+    private static final String FILE_ANDROID_ASSETS = "android_asset";
+
     private final OkHttpClient client;
     private final Resources resources;
     private final ExecutorService executorService;
@@ -97,50 +104,35 @@ public class AsyncDrawableLoader implements AsyncDrawable.Loader {
             @Override
             public void run() {
 
-                final Request request = new Request.Builder()
+                final Item item;
-                        .url(destination)
-                        .tag(destination)
-                        .build();
 
-                Response response = null;
+                final Uri uri = Uri.parse(destination);
-                try {
+                if ("file".equals(uri.getScheme())) {
-                    response = client.newCall(request).execute();
+                    item = fromFile(uri);
-                } catch (IOException e) {
+                } else {
-                    e.printStackTrace();
+                    item = fromNetwork(destination);
                 }
 
                 Drawable result = null;
 
-                if (response != null) {
+                if (item != null
-
+                        && item.inputStream != null) {
-                    final ResponseBody body = response.body();
-                    if (body != null) {
-                        final InputStream inputStream = body.byteStream();
-                        if (inputStream != null) {
-                            final String contentType = response.header(HEADER_CONTENT_TYPE);
                     try {
-                                // svg can have `image/svg+xml;charset=...`
+                        if (CONTENT_TYPE_SVG.equals(item.type)) {
-                                if (CONTENT_TYPE_SVG.equals(contentType)
+                            result = handleSvg(item.inputStream);
-                                        || (!TextUtils.isEmpty(contentType) && contentType.startsWith(CONTENT_TYPE_SVG))) {
+                        } else if (CONTENT_TYPE_GIF.equals(item.type)) {
-                                    // handle SVG
+                            result = handleGif(item.inputStream);
-                                    result = handleSvg(inputStream);
-                                } else if (CONTENT_TYPE_GIF.equals(contentType)) {
-                                    // handle gif
-                                    result = handleGif(inputStream);
                         } else {
-                                    result = handleSimple(inputStream);
+                            result = handleSimple(item.inputStream);
-                                    // just try to decode whatever it is
                         }
                     } finally {
                         try {
-                                    inputStream.close();
+                            item.inputStream.close();
                         } catch (IOException e) {
                             // no op
                         }
                     }
                 }
-                    }
-                }
 
                 // if result is null, we assume it's an error
                 if (result == null) {
@@ -165,6 +157,102 @@ public class AsyncDrawableLoader implements AsyncDrawable.Loader {
         });
     }
 
+    private Item fromFile(Uri uri) {
+
+        final List<String> segments = uri.getPathSegments();
+        if (segments == null
+                || segments.size() == 0) {
+            // pointing to file & having no path segments is no use
+            return null;
+        }
+
+        final Item out;
+        final String type;
+        final InputStream inputStream;
+
+        final boolean assets = FILE_ANDROID_ASSETS.equals(segments.get(0));
+        final String lastSegment = uri.getLastPathSegment();
+
+        if (lastSegment.endsWith(".svg")) {
+            type = CONTENT_TYPE_SVG;
+        } else if (lastSegment.endsWith(".gif")) {
+            type = CONTENT_TYPE_GIF;
+        } else {
+            type = null;
+        }
+
+        if (assets) {
+            final StringBuilder path = new StringBuilder();
+            for (int i = 1, size = segments.size(); i < size; i++) {
+                if (i != 1) {
+                    path.append('/');
+                }
+                path.append(segments.get(i));
+            }
+            // load assets
+            InputStream inner = null;
+            try {
+                inner = resources.getAssets().open(path.toString());
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            inputStream = inner;
+        } else {
+            InputStream inner = null;
+            try {
+                inner = new BufferedInputStream(new FileInputStream(new File(uri.getPath())));
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+            }
+            inputStream = inner;
+        }
+
+        if (inputStream != null) {
+            out = new Item(type, inputStream);
+        } else {
+            out = null;
+        }
+
+        return out;
+    }
+
+    private Item fromNetwork(String destination) {
+
+        Item out = null;
+
+        final Request request = new Request.Builder()
+                .url(destination)
+                .tag(destination)
+                .build();
+
+        Response response = null;
+        try {
+            response = client.newCall(request).execute();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        if (response != null) {
+            final ResponseBody body = response.body();
+            if (body != null) {
+                final InputStream inputStream = body.byteStream();
+                if (inputStream != null) {
+                    final String type;
+                    final String contentType = response.header(HEADER_CONTENT_TYPE);
+                    if (!TextUtils.isEmpty(contentType)
+                            && contentType.startsWith(CONTENT_TYPE_SVG)) {
+                        type = CONTENT_TYPE_SVG;
+                    } else {
+                        type = contentType;
+                    }
+                    out = new Item(type, inputStream);
+                }
+            }
+        }
+
+        return out;
+    }
+
     private Drawable handleSvg(InputStream stream) {
 
         final Drawable out;
@@ -292,4 +380,14 @@ public class AsyncDrawableLoader implements AsyncDrawable.Loader {
             return new AsyncDrawableLoader(this);
         }
     }
+
+    private static class Item {
+        final String type;
+        final InputStream inputStream;
+
+        Item(String type, InputStream inputStream) {
+            this.type = type;
+            this.inputStream = inputStream;
+        }
+    }
 }

library/build.gradle

@@ -18,8 +18,6 @@ dependencies {
     compile COMMON_MARK
     compile COMMON_MARK_STRIKETHROUGHT
     compile COMMON_MARK_TABLE
-
-    compile 'ru.noties:debug:3.0.0@jar'
 }
 
 if (project.hasProperty('release')) {

library/src/main/java/ru/noties/markwon/UrlProcessorAndroidAssets.java

@@ -0,0 +1,39 @@
+package ru.noties.markwon;
+
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.text.TextUtils;
+
+public class UrlProcessorAndroidAssets implements UrlProcessor {
+
+    private final UrlProcessorRelativeToAbsolute assetsProcessor
+            = new UrlProcessorRelativeToAbsolute("file:///android_asset/");
+
+    private final UrlProcessor processor;
+
+    public UrlProcessorAndroidAssets() {
+        this(null);
+    }
+
+    public UrlProcessorAndroidAssets(@Nullable UrlProcessor parent) {
+        this.processor = parent;
+    }
+
+    @NonNull
+    @Override
+    public String process(@NonNull String destination) {
+        final String out;
+        final Uri uri = Uri.parse(destination);
+        if (TextUtils.isEmpty(uri.getScheme())) {
+            out = assetsProcessor.process(destination);
+        } else {
+            if (processor != null) {
+                out = processor.process(destination);
+            } else {
+                out = destination;
+            }
+        }
+        return out;
+    }
+}

library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java

@@ -38,7 +38,6 @@ import java.util.ArrayList;
 import java.util.Deque;
 import java.util.List;
 
-import ru.noties.debug.Debug;
 import ru.noties.markwon.SpannableConfiguration;
 import ru.noties.markwon.renderer.html.SpannableHtmlParser;
 import ru.noties.markwon.spans.AsyncDrawable;
@@ -273,8 +272,6 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
     @Override
     public void visit(CustomNode customNode) {
 
-//        Log.e(null, String.valueOf(customNode));
-
         if (customNode instanceof Strikethrough) {
 
             final int length = builder.length();
@@ -290,8 +287,6 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
 
         final boolean handled;
 
-        Debug.i(node);
-
         if (node instanceof TableBody) {
             visitChildren(node);
             tableRows = 0;
@@ -306,8 +301,6 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
             if (pendingTableRow != null) {
                 builder.append(' ');
 
-                Debug.i("adding a row: %d", tableRows);
-
                 final TableRowSpan span = new TableRowSpan(
                         configuration.theme(),
                         pendingTableRow,