Implement GetSelectedHTML for the ie and gtk webkit backends and document.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/SOC2011_WEBVIEW@68226 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/webview_webkit.h

@@ -145,6 +145,7 @@ public:
     virtual bool HasSelection();
     virtual void SelectAll();
     virtual wxString GetSelectedText();
+    virtual wxString GetSelectedHTML();
 
     /** FIXME: hack to work around signals being received too early */
     bool m_ready;

include/wx/msw/webview_ie.h

@@ -102,6 +102,7 @@ public:
     virtual bool HasSelection();
     virtual void DeleteSelection();
     virtual wxString GetSelectedText();
+    virtual wxString GetSelectedHTML();
 
 
     // ---- IE-specific methods

include/wx/osx/webview_webkit.h

@@ -107,6 +107,7 @@ public:
     virtual bool HasSelection() { return false };
     virtual void SelectAll() {};
     virtual wxString GetSelectedText();
+    virtual wxString GetSelectedHTML() { return ""; }
 
     // ---- methods not from the parent (common) interface
     wxString RunScript(const wxString& javascript);

include/wx/webview.h

@@ -288,6 +288,7 @@ public:
     virtual bool HasSelection() = 0;
     virtual void DeleteSelection() = 0;
     virtual wxString GetSelectedText() = 0;
+    virtual wxString GetSelectedHTML() = 0;
 
     // TODO:
     //     void EnableJavascript(bool enabled);             // maybe?

interface/wx/webview.h

@@ -393,6 +393,11 @@ public:
     */
     virtual void DeleteSelection() = 0;
     
+    /**
+        Returns the currently selected HTML, if any.
+    */
+    virtual wxString GetSelectedHTML() = 0;
+    
     /**
         Returns the currently selected text, if any.
     */

src/gtk/webview_webkit.cpp

@@ -743,6 +743,31 @@ wxString wxWebViewWebKit::GetSelectedText()
                     wxConvUTF8);
 }
 
+wxString wxWebViewWebKit::GetSelectedHTML()
+{
+    WebKitDOMDocument* doc; 
+    WebKitDOMDOMWindow* win;
+    WebKitDOMDOMSelection* sel;
+    WebKitDOMRange* range;
+    WebKitDOMElement* div;
+    WebKitDOMDocumentFragment* clone;
+    WebKitDOMHTMLElement* html;
+
+    doc = webkit_web_view_get_dom_document(WEBKIT_WEB_VIEW(web_view));
+    win = webkit_dom_document_get_default_view(WEBKIT_DOM_DOCUMENT(doc));
+    sel = webkit_dom_dom_window_get_selection(WEBKIT_DOM_DOM_WINDOW(win));
+    range = webkit_dom_dom_selection_get_range_at(WEBKIT_DOM_DOM_SELECTION(sel), 
+                                                  0, NULL);
+    div = webkit_dom_document_create_element(WEBKIT_DOM_DOCUMENT(doc), "div", NULL);
+
+    clone = webkit_dom_range_clone_contents(WEBKIT_DOM_RANGE(range), NULL);
+    webkit_dom_node_append_child(&div->parent_instance, &clone->parent_instance, NULL);
+    html = (WebKitDOMHTMLElement*)div;
+
+    return wxString(webkit_dom_html_element_get_inner_html(WEBKIT_DOM_HTML_ELEMENT(html)), 
+                    wxConvUTF8);
+}
+
 // static
 wxVisualAttributes
 wxWebViewWebKit::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))

src/msw/webview_ie.cpp

@@ -614,6 +614,35 @@ wxString wxWebViewIE::GetSelectedText()
     return selected;
 }
 
+wxString wxWebViewIE::GetSelectedHTML()
+{
+    IHTMLDocument2* document = GetDocument();
+    IHTMLSelectionObject* selection;
+    wxString selected;
+    HRESULT hr = document->get_selection(&selection);
+    if(SUCCEEDED(hr))
+    {
+        IDispatch* disrange;
+        hr = selection->createRange(&disrange);
+        if(SUCCEEDED(hr))
+        {
+            IHTMLTxtRange* range;
+            hr = disrange->QueryInterface(IID_IHTMLTxtRange, (void**)&range);
+            if(SUCCEEDED(hr))
+            {
+                BSTR text;
+                range->get_htmlText(&text);
+                selected = wxString(text);
+                range->Release();
+            }
+            disrange->Release();
+        }
+        selection->Release();
+    }
+    document->Release();
+    return selected;
+}
+
 bool wxWebViewIE::CanExecCommand(wxString command)
 {
     IHTMLDocument2* document = GetDocument();