1 files changed, 70 insertions, 0 deletions
diff --git a/WordPress/src/main/java/org/wordpress/android/ui/notifications/blocks/NoteBlockLinkMovementMethod.java b/WordPress/src/main/java/org/wordpress/android/ui/notifications/blocks/NoteBlockLinkMovementMethod.java
new file mode 100644
index 000000000..8b53ab6ff
--- /dev/null
+++ b/WordPress/src/main/java/org/wordpress/android/ui/notifications/blocks/NoteBlockLinkMovementMethod.java
@@ -0,0 +1,70 @@
+package org.wordpress.android.ui.notifications.blocks;
+
+import android.support.annotation.NonNull;
+import android.text.Layout;
+import android.text.Selection;
+import android.text.Spannable;
+import android.text.method.LinkMovementMethod;
+import android.view.MotionEvent;
+import android.widget.TextView;
+
+/**
+ * Allows links to be highlighted when tapped on note blocks.
+ * See: http://stackoverflow.com/a/20905824/309558
+ */
+class NoteBlockLinkMovementMethod extends LinkMovementMethod {
+
+    private NoteBlockClickableSpan mPressedSpan;
+
+    @Override
+    public boolean onTouchEvent(@NonNull TextView textView, @NonNull Spannable spannable, @NonNull MotionEvent event) {
+        if (event.getAction() == MotionEvent.ACTION_DOWN) {
+            mPressedSpan = getPressedSpan(textView, spannable, event);
+            if (mPressedSpan != null) {
+                mPressedSpan.setPressed(true);
+                Selection.setSelection(spannable, spannable.getSpanStart(mPressedSpan),
+                        spannable.getSpanEnd(mPressedSpan));
+            }
+        } else if (event.getAction() == MotionEvent.ACTION_MOVE) {
+            NoteBlockClickableSpan touchedSpan = getPressedSpan(textView, spannable, event);
+            if (mPressedSpan != null && touchedSpan != mPressedSpan) {
+                mPressedSpan.setPressed(false);
+                mPressedSpan = null;
+                Selection.removeSelection(spannable);
+            }
+        } else {
+            if (mPressedSpan != null) {
+                mPressedSpan.setPressed(false);
+                super.onTouchEvent(textView, spannable, event);
+            }
+            mPressedSpan = null;
+            Selection.removeSelection(spannable);
+        }
+        return true;
+    }
+
+    private NoteBlockClickableSpan getPressedSpan(TextView textView, Spannable spannable, MotionEvent event) {
+
+        int x = (int) event.getX();
+        int y = (int) event.getY();
+
+        x -= textView.getTotalPaddingLeft();
+        y -= textView.getTotalPaddingTop();
+
+        x += textView.getScrollX();
+        y += textView.getScrollY();
+
+        Layout layout = textView.getLayout();
+        int line = layout.getLineForVertical(y);
+        int off = layout.getOffsetForHorizontal(line, x);
+
+        NoteBlockClickableSpan[] link = spannable.getSpans(off, off, NoteBlockClickableSpan.class);
+        NoteBlockClickableSpan touchedSpan = null;
+        if (link.length > 0) {
+            touchedSpan = link[0];
+        }
+
+        return touchedSpan;
+    }
+
+}