From 78f40e3833b69b987678c66685ee9338d71806eb Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sat, 16 Nov 2013 19:53:58 +0300
Subject: fix gui shortcuts in SDL2 text fields.

---
 src/gui/widgets/textfield.cpp | 180 ++++++++++++++++++++++++++++++++----------
 src/gui/widgets/textfield.h   |  10 +++
 2 files changed, 147 insertions(+), 43 deletions(-)

(limited to 'src/gui')

diff --git a/src/gui/widgets/textfield.cpp b/src/gui/widgets/textfield.cpp
index abf90019a..49aad86b6 100644
--- a/src/gui/widgets/textfield.cpp
+++ b/src/gui/widgets/textfield.cpp
@@ -25,7 +25,7 @@
 #include "client.h"
 #include "mouseinput.h"
 
-#ifdef ANDROID
+#if defined ANDROID || defined USE_SDL2
 #include "input/inputmanager.h"
 #endif
 
@@ -278,45 +278,21 @@ void TextField::keyPressed(gcn::KeyEvent &keyEvent)
     {
         case 2:  // Ctrl+b
         {
-            while (mCaretPosition > 0)
-            {
-                --mCaretPosition;
-                if ((mText[mCaretPosition] & 192) != 128)
-                    break;
-            }
+            moveCaretBack();
             consumed = true;
             break;
         }
 
         case 6:  // Ctrl+f
         {
-            const unsigned sz = static_cast<unsigned>(mText.size());
-            while (mCaretPosition < sz)
-            {
-                ++mCaretPosition;
-                if (mCaretPosition == sz ||
-                    (mText[mCaretPosition] & 192) != 128)
-                {
-                    break;
-                }
-            }
+            moveCaretForward();
             consumed = true;
             break;
         }
 
         case 4:  // Ctrl+d
         {
-            unsigned sz = static_cast<unsigned>(mText.size());
-            while (mCaretPosition < sz)
-            {
-                --sz;
-                mText.erase(mCaretPosition, 1);
-                if (mCaretPosition == sz ||
-                    (mText[mCaretPosition] & 192) != 128)
-                {
-                    break;
-                }
-            }
+            caretDelete();
             consumed = true;
             break;
         }
@@ -337,15 +313,11 @@ void TextField::keyPressed(gcn::KeyEvent &keyEvent)
             break;
 
         case 21:  // Ctrl+u
-            if (mCaretPosition > 0)
-            {
-                mText = mText.substr(mCaretPosition);
-                mCaretPosition = 0;
-            }
+            caretDeleteToStart();
             consumed = true;
             break;
 
-        case 3:
+        case 3:  // Ctrl+c
             handleCopy();
             consumed = true;
             break;
@@ -360,15 +332,7 @@ void TextField::keyPressed(gcn::KeyEvent &keyEvent)
             break;
 
         case 23:  // Ctrl+w
-            while (mCaretPosition > 0)
-            {
-                deleteCharLeft(mText, &mCaretPosition);
-                if (mCaretPosition > 0 && isWordSeparator(
-                    mText[mCaretPosition - 1]))
-                {
-                    break;
-                }
-            }
+            caretDeleteWord();
             consumed = true;
             break;
 
@@ -470,10 +434,121 @@ void TextField::keyPressed(gcn::KeyEvent &keyEvent)
         distributeActionEvent();
 
     if (consumed)
+    {
         keyEvent.consume();
+    }
+#ifdef USE_SDL2
+    else
+    {
+        if (inputManager.isActionActive(static_cast<int>(Input::KEY_GUI_CTRL)))
+        {
+            switch (action)
+            {
+                case Input::KEY_GUI_B:
+                {
+                    moveCaretBack();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_C:
+                {
+                    handleCopy();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_D:
+                {
+                    caretDelete();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_E:
+                {
+                    mCaretPosition = static_cast<int>(mText.size());
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_F:
+                {
+                    moveCaretBack();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_H:
+                {
+                    deleteCharLeft(mText, &mCaretPosition);
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_U:
+                {
+                    caretDeleteToStart();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_K:
+                {
+                    mText = mText.substr(0, mCaretPosition);
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_V:
+                {
+                    handlePaste();
+                    consumed = true;
+                    break;
+                }
+                case Input::KEY_GUI_W:
+                {
+                    caretDeleteWord();
+                    consumed = true;
+                    break;
+                }
+
+                default:
+                    break;
+            }
+        }
+    }
+    if (consumed)
+        keyEvent.consume();
+#endif
     fixScroll();
 }
 
+void TextField::moveCaretBack()
+{
+    while (mCaretPosition > 0)
+    {
+        --mCaretPosition;
+        if ((mText[mCaretPosition] & 192) != 128)
+        break;
+    }
+}
+
+void TextField::moveCaretForward()
+{
+    const unsigned sz = static_cast<unsigned>(mText.size());
+    while (mCaretPosition < sz)
+    {
+        ++mCaretPosition;
+        if (mCaretPosition == sz || (mText[mCaretPosition] & 192) != 128)
+            break;
+    }
+}
+
+void TextField::caretDelete()
+{
+     unsigned sz = static_cast<unsigned>(mText.size());
+     while (mCaretPosition < sz)
+     {
+         --sz;
+         mText.erase(mCaretPosition, 1);
+         if (mCaretPosition == sz || (mText[mCaretPosition] & 192) != 128)
+             break;
+    }
+}
+
 void TextField::handlePaste()
 {
     std::string text = getText();
@@ -486,6 +561,25 @@ void TextField::handlePaste()
     }
 }
 
+void TextField::caretDeleteToStart()
+{
+    if (mCaretPosition > 0)
+    {
+        mText = mText.substr(mCaretPosition);
+        mCaretPosition = 0;
+    }
+}
+
+void TextField::caretDeleteWord()
+{
+    while (mCaretPosition > 0)
+    {
+        deleteCharLeft(mText, &mCaretPosition);
+        if (mCaretPosition > 0 && isWordSeparator(mText[mCaretPosition - 1]))
+            break;
+    }
+}
+
 void TextField::handleCopy() const
 {
     std::string text = getText();
diff --git a/src/gui/widgets/textfield.h b/src/gui/widgets/textfield.h
index 70a722e53..3942d610a 100644
--- a/src/gui/widgets/textfield.h
+++ b/src/gui/widgets/textfield.h
@@ -126,6 +126,16 @@ class TextField : public gcn::TextField,
 
         void focusLost(const gcn::Event &event) override;
 
+        void moveCaretBack();
+
+        void moveCaretForward();
+
+        void caretDelete();
+
+        void caretDeleteToStart();
+
+        void caretDeleteWord();
+
     protected:
         void drawCaret(gcn::Graphics* graphics, int x) override final;
 
-- 
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