Added a love.keyboard.setTextInput variant (setTextInput(enable, x, y, width, height)) to specify a rectangle where text is expected to be displayed on the screen. This is used as a hint so on-screen keyboards won't cover the text area.

Added love.keyboard.hasScreenKeyboard.

--HG--
branch : minor

src/modules/keyboard/sdl/Keyboard.cpp

@@ -117,11 +117,26 @@ void Keyboard::setTextInput(bool enable)
 		SDL_StopTextInput();
 }
 
+void Keyboard::setTextInput(bool enable, int x, int y, int w, int h)
+{
+	// TODO: SetTextInputRect expects coordinates in window-space, but
+	// setTextInput uses pixels. We should convert here.
+	SDL_Rect rect = {x, y, w, h};
+	SDL_SetTextInputRect(&rect);
+
+	setTextInput(enable);
+}
+
 bool Keyboard::hasTextInput() const
 {
 	return SDL_IsTextInputActive();
 }
 
+bool Keyboard::hasScreenKeyboard() const
+{
+	return SDL_HasScreenKeyboardSupport();
+}
+
 bool Keyboard::getConstant(Scancode in, SDL_Scancode &out)
 {
 	return scancodes.find(in, out);

src/modules/keyboard/sdl/Keyboard.h

@@ -53,7 +53,9 @@ public:
 	Scancode getScancodeFromKey(Key key) const;
 
 	void setTextInput(bool enable);
+	void setTextInput(bool enable, int x, int y, int w, int h);
 	bool hasTextInput() const;
+	bool hasScreenKeyboard() const;
 
 	static bool getConstant(Scancode in, SDL_Scancode &out);
 	static bool getConstant(SDL_Scancode in, Scancode &out);