From fd237ee1888231c7046651cfb6930de24a1444ae Mon Sep 17 00:00:00 2001
From: Tlaster <tlaster@outlook.com>
Date: Thu, 14 May 2020 14:34:03 +0800
Subject: [PATCH] Add auto hide tabs support

---
 .../constant/SharedPreferenceConstants.java       |  2 ++
 .../mariotaku/twidere/activity/HomeActivity.kt    | 15 ++++++++++-----
 .../mariotaku/twidere/constant/PreferenceKeys.kt  |  1 +
 twidere/src/main/res/values/strings.xml           |  2 ++
 twidere/src/main/res/xml/preferences_theme.xml    | 13 ++++++++++---
 5 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/twidere.component.common/src/main/java/org/mariotaku/twidere/constant/SharedPreferenceConstants.java b/twidere.component.common/src/main/java/org/mariotaku/twidere/constant/SharedPreferenceConstants.java
index 28c2f5228..5952810dc 100644
--- a/twidere.component.common/src/main/java/org/mariotaku/twidere/constant/SharedPreferenceConstants.java
+++ b/twidere.component.common/src/main/java/org/mariotaku/twidere/constant/SharedPreferenceConstants.java
@@ -287,6 +287,8 @@ public interface SharedPreferenceConstants {
     String KEY_TAB_POSITION = "tab_position";
     @ExportablePreference(STRING)
     String KEY_YANDEX_KEY = "yandex_key";
+    @ExportablePreference(BOOLEAN)
+    String KEY_AUTO_HIDE_TABS = "auto_hide_tabs";
 
     // Internal preferences
 
diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/activity/HomeActivity.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/activity/HomeActivity.kt
index e4feba84f..1feb6a6c2 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/activity/HomeActivity.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/activity/HomeActivity.kt
@@ -392,7 +392,7 @@ class HomeActivity : BaseActivity(), OnClickListener, OnPageChangeListener, Supp
 
     override fun getSystemWindowInsets(caller: Fragment, insets: Rect): Boolean {
         if (caller === leftDrawerFragment) return super.getSystemWindowInsets(caller, insets)
-        if (mainTabs == null || homeContent == null) return false
+        if (mainTabs == null || homeContent == null || toolbar == null || !toolbar.isVisible) return false
         val height = mainTabs.height
         if (preferences[tabPositionKey] == SharedPreferenceConstants.VALUE_TAB_POSITION_TOP) {
             if (height != 0) {
@@ -589,7 +589,7 @@ class HomeActivity : BaseActivity(), OnClickListener, OnPageChangeListener, Supp
 
     override var controlBarOffset: Float
         get() {
-            if (mainTabs.columns > 1) {
+            if (mainTabs.columns > 1 || !toolbar.isVisible) {
                 val lp = actionsButton.layoutParams
                 val total: Float
                 total = if (lp is MarginLayoutParams) {
@@ -608,7 +608,7 @@ class HomeActivity : BaseActivity(), OnClickListener, OnPageChangeListener, Supp
         }
         set(offset) {
             if (preferences[tabPositionKey] == SharedPreferenceConstants.VALUE_TAB_POSITION_TOP) {
-                val translationY = if (mainTabs.columns > 1) {
+                val translationY = if (mainTabs.columns > 1 || !toolbar.isVisible) {
                     0
                 } else {
                     (controlBarHeight * (offset - 1)).toInt()
@@ -623,7 +623,7 @@ class HomeActivity : BaseActivity(), OnClickListener, OnPageChangeListener, Supp
                 }
                 notifyControlBarOffsetChanged()
             } else {
-                val translationY = if (mainTabs.columns > 1) {
+                val translationY = if (mainTabs.columns > 1 || !toolbar.isVisible) {
                     0
                 } else {
                     (toolbar.height * (offset - 1)).toInt()
@@ -855,7 +855,12 @@ class HomeActivity : BaseActivity(), OnClickListener, OnPageChangeListener, Supp
             pagerAdapter.hasMultipleColumns = false
             mainTabs.columns = 1
         }
-        if (preferences[tabPositionKey] == SharedPreferenceConstants.VALUE_TAB_POSITION_TOP) {
+        if (pagerAdapter.count == 1 && preferences[autoHideTabs]) {
+            toolbar.isVisible = false
+            actionsButton.updateLayoutParams<RelativeLayout.LayoutParams> {
+                addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE)
+            }
+        } else if (preferences[tabPositionKey] == SharedPreferenceConstants.VALUE_TAB_POSITION_TOP) {
             toolbar.updateLayoutParams<RelativeLayout.LayoutParams> {
                 addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE)
             }
diff --git a/twidere/src/main/kotlin/org/mariotaku/twidere/constant/PreferenceKeys.kt b/twidere/src/main/kotlin/org/mariotaku/twidere/constant/PreferenceKeys.kt
index 90978380f..df370485a 100644
--- a/twidere/src/main/kotlin/org/mariotaku/twidere/constant/PreferenceKeys.kt
+++ b/twidere/src/main/kotlin/org/mariotaku/twidere/constant/PreferenceKeys.kt
@@ -88,6 +88,7 @@ val promotionsEnabledKey = KBooleanKey("promotions_enabled", false)
 val translationDestinationKey = KNullableStringKey(KEY_TRANSLATION_DESTINATION, null)
 val tabPositionKey = KStringKey(KEY_TAB_POSITION, SharedPreferenceConstants.DEFAULT_TAB_POSITION)
 val yandexKeyKey = KStringKey(SharedPreferenceConstants.KEY_YANDEX_KEY, TwidereConstants.YANDEX_KEY)
+val autoHideTabs = KBooleanKey(SharedPreferenceConstants.KEY_AUTO_HIDE_TABS, true)
 
 object cacheSizeLimitKey : KSimpleKey<Int>(KEY_CACHE_SIZE_LIMIT, 300) {
     override fun read(preferences: SharedPreferences) = preferences.getInt(key, def).coerceIn(100,
diff --git a/twidere/src/main/res/values/strings.xml b/twidere/src/main/res/values/strings.xml
index 0afeeb105..82408e8a5 100644
--- a/twidere/src/main/res/values/strings.xml
+++ b/twidere/src/main/res/values/strings.xml
@@ -890,6 +890,7 @@
     <string name="preference_summary_media_preload_non_metered_network">Preload media only on free networks like Wi-Fi</string>
     <string name="preference_summary_sync_timeline_positions">When \"Remember position\" enabled</string>
     <string name="preference_summary_trends_location">Now you can set location separately in tab settings.</string>
+    <string name="preference_summary_auto_hide_tabs">Hide Tab when there\'s only one tab</string>
     <string name="preference_title_accounts">Accounts</string>
     <string name="preference_title_advanced">Advanced</string>
     <string name="preference_title_auto_refresh_compatibility_mode">Compatibility mode</string>
@@ -908,6 +909,7 @@
     <string name="preference_title_multi_column_tabs">Multi column tabs</string>
     <string name="preference_title_navbar_style">Navbar style</string>
     <string name="preference_title_tab_position">Tab position</string>
+    <string name="preference_title_auto_hide_tab">Auto hide Tab</string>
     <string name="preference_title_notification_channels">Channels</string>
     <string name="preference_title_notification_ringtone">Ringtone</string>
     <string name="preference_title_override_language">App language</string>
diff --git a/twidere/src/main/res/xml/preferences_theme.xml b/twidere/src/main/res/xml/preferences_theme.xml
index 2b00f35d5..fa86846d7 100644
--- a/twidere/src/main/res/xml/preferences_theme.xml
+++ b/twidere/src/main/res/xml/preferences_theme.xml
@@ -77,10 +77,17 @@
         <extra
             android:name="should_recreate"
             android:value="true"/>
-        <extra
-            android:name="recreate_activity"
-            android:value="true"/>
     </org.mariotaku.twidere.preference.EntrySummaryListPreference>
 
+    <SwitchPreferenceCompat
+        android:order="27"
+        android:defaultValue="true"
+        android:key="auto_hide_tabs"
+        android:summary="@string/preference_summary_auto_hide_tabs"
+        android:title="@string/preference_title_auto_hide_tab">
+        <extra
+            android:name="should_recreate"
+            android:value="true"/>
+    </SwitchPreferenceCompat>
 
 </PreferenceScreen>
\ No newline at end of file