From beb9dd69e4eb56818a8cfa04b40a861b1c19c920 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Mon, 11 May 2020 22:15:36 +0300
Subject: [PATCH] CustomEmojiHelper: add a way to disable big emojis

---
 .../tusky/util/CustomEmojiHelper.kt           | 43 ++++++++++++++++---
 app/src/main/res/values/husky.xml             |  1 +
 app/src/main/res/xml/preferences.xml          |  6 +++
 3 files changed, 45 insertions(+), 5 deletions(-)

diff --git a/app/src/main/java/com/keylesspalace/tusky/util/CustomEmojiHelper.kt b/app/src/main/java/com/keylesspalace/tusky/util/CustomEmojiHelper.kt
index c29cc9f8..29870080 100644
--- a/app/src/main/java/com/keylesspalace/tusky/util/CustomEmojiHelper.kt
+++ b/app/src/main/java/com/keylesspalace/tusky/util/CustomEmojiHelper.kt
@@ -43,7 +43,11 @@ import androidx.preference.PreferenceManager
  * @param view a reference to the a view the emojis will be shown in (should be the TextView, but parents of the TextView are also acceptable)
  * @return the text with the shortcodes replaced by EmojiSpans
 */
-fun emojifyText(text: Spanned, emojis: List<Emoji>?, view: View) : Spanned {
+fun emojifyText(text: Spanned, emojis: List<Emoji>?, view: View, forceSmallEmoji: Boolean) : Spanned {
+    val pm = PreferenceManager.getDefaultSharedPreferences(view.context)
+    val smallEmojis = forceSmallEmoji || !pm.getBoolean("bigEmojis", true)
+    // val animatedEmojis = pm.getBoolean("animateEmojis", false)
+
     if (emojis != null && emojis.isNotEmpty()) {
         val builder = SpannableStringBuilder(text)
         for (emoji in emojis) {
@@ -51,7 +55,11 @@ fun emojifyText(text: Spanned, emojis: List<Emoji>?, view: View) : Spanned {
             val matcher = Pattern.compile(pattern.toString(), Pattern.LITERAL)
                 .matcher(text)
             while(matcher.find()) {
-                val span = EmojiSpan(WeakReference<View>(view))
+                val span = if(smallEmojis) {
+                    SmallEmojiSpan(WeakReference<View>(view))
+                } else {
+                    EmojiSpan(WeakReference<View>(view))
+                }
                 builder.setSpan(span, matcher.start(), matcher.end(), 0);
                 Glide.with(view)
                     .asBitmap()
@@ -66,11 +74,19 @@ fun emojifyText(text: Spanned, emojis: List<Emoji>?, view: View) : Spanned {
     return text
 }
 
-fun emojifyString(string: String, emojis: List<Emoji>?, view: View) : Spanned {
-    return emojifyText(SpannedString(string), emojis, view)
+fun emojifyText(text: Spanned, emojis: List<Emoji>?, view: View) : Spanned {
+    return emojifyText(text, emojis, view, false)
 }
 
-public class EmojiSpan(val viewWeakReference: WeakReference<View>) : ReplacementSpan() {
+fun emojifyString(string: String, emojis: List<Emoji>?, view: View, forceSmallEmoji: Boolean) : Spanned {
+    return emojifyText(SpannedString(string), emojis, view, forceSmallEmoji)
+}
+
+fun emojifyString(string: String, emojis: List<Emoji>?, view: View) : Spanned {
+    return emojifyString(string, emojis, view, false)
+}
+
+public open class EmojiSpan(val viewWeakReference: WeakReference<View>) : ReplacementSpan() {
     var imageDrawable: Drawable? = null
     
     override fun getSize(paint: Paint, text: CharSequence, start: Int, end: Int, fm: Paint.FontMetricsInt?) : Int {
@@ -118,3 +134,20 @@ public class EmojiSpan(val viewWeakReference: WeakReference<View>) : Replacement
         }
     }
 }
+
+public class SmallEmojiSpan(viewWeakReference: WeakReference<View>)
+    : EmojiSpan(viewWeakReference) {
+    override fun getSize(paint: Paint, text: CharSequence, start: Int, end: Int, fm: Paint.FontMetricsInt?): Int {
+        if (fm != null) {
+            /* update FontMetricsInt or otherwise span does not get drawn when
+             * it covers the whole text */
+            val metrics = paint.fontMetricsInt
+            fm.top = metrics.top
+            fm.ascent = metrics.ascent
+            fm.descent = metrics.descent
+            fm.bottom = metrics.bottom
+        }
+
+        return paint.textSize.toInt()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/values/husky.xml b/app/src/main/res/values/husky.xml
index c21b60fc..9759fe91 100644
--- a/app/src/main/res/values/husky.xml
+++ b/app/src/main/res/values/husky.xml
@@ -26,5 +26,6 @@
     <string name="pref_title_default_formatting">Default formatting syntax(if supported by instance)</string>
     <string name="pref_title_notification_filter_emoji">my posts are reacted with emojis</string>
     <string name="pref_title_hide_muted_users">Hide muted users</string>
+    <string name="pref_title_enable_big_emojis">Enable bigger custom emojis</string>
 </resources>
         
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 1ea25247..cc3fe008 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -96,6 +96,12 @@
             android:title="@string/pref_title_enable_swipe_for_tabs"
             app:singleLineTitle="false" />
 
+        <SwitchPreferenceCompat
+            android:defaultValue="true"
+            android:key="bigEmojis"
+            android:title="@string/pref_title_enable_big_emojis"
+            app:singleLineTitle="false" />
+
     </PreferenceCategory>
 
     <PreferenceCategory android:title="@string/pref_title_browser_settings">