Added support for pasting text into the application when a text input field is focused

es-core/src/GuiComponent.cpp

@@ -62,10 +62,10 @@ GuiComponent::~GuiComponent()
         getChild(i)->setParent(nullptr);
 }
 
-void GuiComponent::textInput(const std::string& text)
+void GuiComponent::textInput(const std::string& text, const bool pasting)
 {
     for (auto it = mChildren.cbegin(); it != mChildren.cend(); ++it)
-        (*it)->textInput(text);
+        (*it)->textInput(text, pasting);
 }
 
 bool GuiComponent::input(InputConfig* config, Input input)

es-core/src/GuiComponent.h

@@ -63,7 +63,7 @@ public:
     GuiComponent();
     virtual ~GuiComponent();
 
-    virtual void textInput(const std::string& text);
+    virtual void textInput(const std::string& text, const bool pasting = false);
 
     // Called when input is received.
     // Return true if the input is consumed, false if it should continue to be passed

es-core/src/InputManager.cpp

@@ -417,8 +417,26 @@ bool InputManager::parseEvent(const SDL_Event& event)
             return true;
         }
         case SDL_KEYDOWN: {
-            if (event.key.keysym.sym == SDLK_BACKSPACE && SDL_IsTextInputActive())
+            if (SDL_IsTextInputActive()) {
+                // Paste from clipboard.
+#if defined(__APPLE__)
+                if (event.key.keysym.mod & KMOD_GUI && event.key.keysym.sym == SDLK_v) {
+#else
+                if ((event.key.keysym.mod & KMOD_CTRL && event.key.keysym.sym == SDLK_v) ||
+                    (event.key.keysym.mod & KMOD_SHIFT && event.key.keysym.sym == SDLK_INSERT)) {
+#endif
+                    if (SDL_HasClipboardText()) {
+                        char* clipboardText {SDL_GetClipboardText()};
+                        mWindow->textInput(clipboardText, true);
+                        SDL_free(clipboardText);
+                        return true;
+                    }
+                }
+
+                // Handle backspace presses.
+                if (event.key.keysym.sym == SDLK_BACKSPACE)
                     mWindow->textInput("\b");
+            }
 
             if (event.key.repeat)
                 return false;

es-core/src/Window.cpp

@@ -373,10 +373,10 @@ void Window::input(InputConfig* config, Input input)
     }
 }
 
-void Window::textInput(const std::string& text)
+void Window::textInput(const std::string& text, const bool pasting)
 {
     if (peekGui())
-        peekGui()->textInput(text);
+        peekGui()->textInput(text, pasting);
 }
 
 void Window::logInput(InputConfig* config, Input input)

es-core/src/Window.h

@@ -110,7 +110,7 @@ public:
     void deinit();
 
     void input(InputConfig* config, Input input);
-    void textInput(const std::string& text);
+    void textInput(const std::string& text, const bool pasting = false);
     void logInput(InputConfig* config, Input input);
     void update(int deltaTime);
     void render();

es-core/src/components/ComponentGrid.cpp

@@ -436,11 +436,11 @@ void ComponentGrid::render(const glm::mat4& parentTrans)
     }
 }
 
-void ComponentGrid::textInput(const std::string& text)
+void ComponentGrid::textInput(const std::string& text, const bool pasting)
 {
     const GridEntry* selectedEntry {getCellAt(mCursor)};
     if (selectedEntry != nullptr && selectedEntry->canFocus)
-        selectedEntry->component->textInput(text);
+        selectedEntry->component->textInput(text, pasting);
 }
 
 void ComponentGrid::onCursorMoved(glm::ivec2 from, glm::ivec2 to)

es-core/src/components/ComponentGrid.h

@@ -51,7 +51,7 @@ public:
         mPastBoundaryCallback = func;
     }
 
-    void textInput(const std::string& text) override;
+    void textInput(const std::string& text, const bool pasting = false) override;
     bool input(InputConfig* config, Input input) override;
     void update(int deltaTime) override;
     void render(const glm::mat4& parentTrans) override;

es-core/src/components/ComponentList.cpp

@@ -490,12 +490,12 @@ void ComponentList::updateElementSize(const ComponentListRow& row)
         (*it)->setSize(width, (*it)->getSize().y);
 }
 
-void ComponentList::textInput(const std::string& text)
+void ComponentList::textInput(const std::string& text, const bool pasting)
 {
     if (!size())
         return;
 
-    mEntries.at(mCursor).data.elements.back().component->textInput(text);
+    mEntries.at(mCursor).data.elements.back().component->textInput(text, pasting);
 }
 
 std::vector<HelpPrompt> ComponentList::getHelpPrompts()

es-core/src/components/ComponentList.h

@@ -70,7 +70,7 @@ public:
 
     void addRow(const ComponentListRow& row, bool setCursorHere = false);
 
-    void textInput(const std::string& text) override;
+    void textInput(const std::string& text, const bool pasting = false) override;
     bool input(InputConfig* config, Input input) override;
     void update(int deltaTime) override;
     void render(const glm::mat4& parentTrans) override;

es-core/src/components/TextEditComponent.cpp

@@ -71,9 +71,13 @@ void TextEditComponent::setValue(const std::string& val)
     onCursorChanged();
 }
 
-void TextEditComponent::textInput(const std::string& text)
+void TextEditComponent::textInput(const std::string& text, const bool pasting)
 {
-    if (mMaskInput)
+    if (mMaskInput && !pasting)
+        return;
+
+    // Allow pasting up to a reasonable max clipboard size.
+    if (pasting && text.length() > (isMultiline() ? 16384 : 300))
         return;
 
     if (mEditing) {

es-core/src/components/TextEditComponent.h

@@ -22,7 +22,7 @@ class TextEditComponent : public GuiComponent
 public:
     TextEditComponent();
 
-    void textInput(const std::string& text) override;
+    void textInput(const std::string& text, const bool pasting = false) override;
     bool input(InputConfig* config, Input input) override;
     void update(int deltaTime) override;
     void render(const glm::mat4& parentTrans) override;