Use LinkHelper::openURL on highlighted URL

lib/irrlicht/include/IGUIStaticText.h

@@ -127,7 +127,7 @@ namespace gui
 		virtual void setUseGlyphLayoutsOnly(bool gls_only) = 0;
 		virtual bool useGlyphLayoutsOnly() const = 0;
 		virtual void setMouseCallback(std::function<bool(IGUIStaticText* text, SEvent::SMouseInput)> cb) {}
-		virtual s32 getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str) { return -1; }
+		virtual s32 getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str, int* out_glyph_idx = NULL) { return -1; }
 	};
 
 

lib/irrlicht/source/Irrlicht/CGUIStaticText.cpp

@@ -379,7 +379,7 @@ bool CGUIStaticText::OnEvent(const SEvent& event)
 }
 
 
-s32 CGUIStaticText::getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str)
+s32 CGUIStaticText::getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str, int* out_glyph_idx)
 {
 	core::position2di p;
 	p.X = x;
@@ -473,6 +473,8 @@ s32 CGUIStaticText::getCluster(int x, int y, std::shared_ptr<std::u32string>* ou
 	if (cluster > s->size())
 		return -1;
 	*out_orig_str = s;
+	if (out_glyph_idx)
+		*out_glyph_idx = idx;
 	return cluster;
 }
 

lib/irrlicht/source/Irrlicht/CGUIStaticText.h

@@ -113,7 +113,7 @@ namespace gui
 		//! called if an event happened.
 		virtual bool OnEvent(const SEvent& event);
 		virtual void setMouseCallback(std::function<bool(IGUIStaticText* text, SEvent::SMouseInput)> cb) { m_callback = cb; }
-		virtual s32 getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str);
+		virtual s32 getCluster(int x, int y, std::shared_ptr<std::u32string>* out_orig_str, int* out_glyph_idx = NULL);
 	private:
 
 		//! Breaks the single text line.

src/guiengine/widgets/bubble_widget.cpp

@@ -17,6 +17,7 @@
 
 #include "guiengine/engine.hpp"
 #include "guiengine/widgets/bubble_widget.hpp"
+#include "online/link_helper.hpp"
 #include <algorithm>
 
 #include <IGUIStaticText.h>
@@ -52,6 +53,7 @@ void BubbleWidget::add()
                                                       false, true /* word wrap */, m_parent,
                                                       (m_focusable ? getNewID() : getNewNoFocusID()));
     irrwidget->setTextRestrainedInside(false);
+    irrwidget->setMouseCallback(Online::LinkHelper::openURLIrrElement);
 
     m_element = irrwidget;
     replaceText();

src/guiengine/widgets/label_widget.cpp

@@ -20,6 +20,7 @@
 #include "guiengine/engine.hpp"
 #include "guiengine/scalable_font.hpp"
 #include "guiengine/skin.hpp"
+#include "online/link_helper.hpp"
 
 #include <IGUIElement.h>
 #include <IGUIEnvironment.h>
@@ -84,6 +85,7 @@ void LabelWidget::add()
         irrwidget->setTextRestrainedInside(false);
     }
 
+    irrwidget->setMouseCallback(Online::LinkHelper::openURLIrrElement);
     m_element = irrwidget;
     irrwidget->setTextAlignment( align, valign );
 

src/online/link_helper.cpp

@@ -17,7 +17,12 @@
 #include "online/link_helper.hpp"
 #include "graphics/irr_driver.hpp"
 #include "utils/log.hpp"
+#include "utils/string_utils.hpp"
 #include <string>
+
+#include <GlyphLayout.h>
+#include <IGUIStaticText.h>
+
 #ifdef _WIN32
 #include <windows.h>
 #include <shellapi.h>
@@ -40,6 +45,41 @@ using namespace Online;
 
 namespace Online
 {
+    bool LinkHelper::openURLIrrElement(irr::gui::IGUIStaticText* text,
+                                       irr::SEvent::SMouseInput mouse)
+    {
+        if (mouse.Event != EMIE_LMOUSE_PRESSED_DOWN)
+            return false;
+        std::shared_ptr<std::u32string> s;
+        int glyph_idx = -1;
+        int cluster = text->getCluster(mouse.X, mouse.Y, &s, &glyph_idx);
+        if (cluster == -1 || (unsigned)cluster > s->size())
+            return false;
+        const std::vector<gui::GlyphLayout>& gls = text->getGlyphLayouts();
+        const gui::GlyphLayout& gl = gls[glyph_idx];
+        if ((gl.flags & gui::GLF_URL) == 0)
+            return false;
+        int start = glyph_idx;
+        while (start != 0)
+        {
+            if ((gls[start - 1].flags & gui::GLF_URL) == 0)
+                break;
+            start--;
+        }
+        size_t end = glyph_idx;
+        while (gls.size() - end > 1)
+        {
+            size_t next_end = end + 1;
+            if ((gls[next_end].flags & gui::GLF_URL) == 0)
+                break;
+            end = next_end;
+        }
+        std::u32string url = s->substr(gls[start].cluster.front(),
+            gls[end].cluster.back() - gls[start].cluster.front() + 1);
+        openURL(StringUtils::utf32ToUtf8(url));
+        return true;
+    }
+
     bool LinkHelper::isSupported()
     {
 #ifdef SERVER_ONLY

src/online/link_helper.hpp

@@ -19,6 +19,16 @@
 
 #include <string>
 
+#include <IEventReceiver.h>
+namespace irr
+{
+    namespace gui
+    {
+        class IGUIStaticText;
+    }
+}
+
+
 namespace Online
 {
     class LinkHelper
@@ -26,6 +36,7 @@ namespace Online
     public:
         static bool isSupported();
         static void openURL(const std::string& url);
+        static bool openURLIrrElement(irr::gui::IGUIStaticText* text, irr::SEvent::SMouseInput mouse);
     }; //class LinkHelper
 } // namespace Online
 #endif // link_helper_HPP