Add start of selection api, support for HasSelection, SelectAll and DeleteSelection along with documentation. Implement for IE and WebKitGTK and add stubs for OSX WebKit.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/SOC2011_WEBVIEW@68195 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/webview_webkit.h

@@ -138,6 +138,11 @@ public:
     virtual void SetEditable(bool enable = true);
     virtual bool IsEditable();
 
+    //Selection
+    virtual void DeleteSelection();
+    virtual bool HasSelection();
+    virtual void SelectAll();
+
     /** FIXME: hack to work around signals being received too early */
     bool m_ready;
 

include/wx/msw/webview_ie.h

@@ -97,6 +97,12 @@ public:
     virtual void SetEditable(bool enable = true);
     virtual bool IsEditable();
 
+    //Selection
+    virtual void SelectAll();
+    virtual bool HasSelection();
+    virtual void DeleteSelection();
+
+
     // ---- IE-specific methods
 
     // FIXME: I seem to be able to access remote webpages even in offline mode...

include/wx/osx/webview_webkit.h

@@ -99,8 +99,13 @@ public:
     virtual void Paste();
     
     //Editing functions
-    void  SetEditable(bool enable = true);
-    bool  IsEditable();
+    virtual void SetEditable(bool enable = true);
+    virtual bool IsEditable();
+    
+    //Selection
+    virtual void DeleteSelection();
+    virtual bool HasSelection() { return false };
+    virtual void SelectAll() {};
 
     // ---- methods not from the parent (common) interface
     wxString GetSelectedText();

include/wx/webview.h

@@ -284,6 +284,10 @@ public:
     virtual void SetEditable(bool enable = true) = 0;
     virtual bool IsEditable() = 0;
 
+    virtual void SelectAll() = 0;
+    virtual bool HasSelection() = 0;
+    virtual void DeleteSelection() = 0;
+
     // TODO:
     //     wxString GetSelection();                         // maybe?
     //     void SetSelection(...);                          // maybe?

interface/wx/webview.h

@@ -382,6 +382,27 @@ public:
     */
     virtual void LoadHistoryItem(wxSharedPtr<wxWebHistoryItem> item) = 0;
     
+    /**
+        @name Selection
+    */
+    
+    /**
+        Deletes the current selection. Note that for @c wxWEB_VIEW_BACKEND_WEBKIT
+        the selection must be editable, either through SetEditable or the 
+        correct HTML attribute.
+    */
+    virtual void DeleteSelection() = 0;
+
+    /**
+        Returns @true if there is a current selection.
+    */
+    virtual bool HasSelection = 0;
+
+    /**
+        Selects the entire page.
+    */
+    virtual void SelectAll() = 0;
+
     /**
         @name Undo / Redo
     */

src/gtk/webview_webkit.cpp

@@ -712,6 +712,22 @@ bool wxWebViewWebKit::IsEditable()
     return webkit_web_view_get_editable(WEBKIT_WEB_VIEW(web_view));
 }
 
+void wxWebViewWebKit::DeleteSelection()
+{
+    webkit_web_view_delete_selection(WEBKIT_WEB_VIEW(web_view));
+}
+
+bool wxWebViewWebKit::HasSelection()
+{
+    return webkit_web_view_has_selection(WEBKIT_WEB_VIEW(web_view));
+}
+
+void wxWebViewWebKit::SelectAll()
+{
+    webkit_web_view_select_all(WEBKIT_WEB_VIEW(web_view));
+}
+
+
 // static
 wxVisualAttributes
 wxWebViewWebKit::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))

src/msw/webview_ie.cpp

@@ -564,6 +564,26 @@ bool wxWebViewIE::IsEditable()
         return false;
 }
 
+void wxWebViewIE::SelectAll()
+{
+    ExecCommand("SelectAll");
+}
+
+bool wxWebViewIE::HasSelection()
+{
+    IHTMLDocument2* document = GetDocument();
+    IHTMLSelectionObject* selection;
+    document->get_selection(&selection);
+    BSTR type;
+    selection->get_type(&type);
+    return wxString(type) != "None";
+}
+
+void wxWebViewIE::DeleteSelection()
+{
+    ExecCommand("Delete");
+}
+
 bool wxWebViewIE::CanExecCommand(wxString command)
 {
     IHTMLDocument2* document = GetDocument();

src/osx/webview_webkit.mm

@@ -980,6 +980,14 @@ void wxWebViewWebKit::Paste()
     [(WebView*)m_webView paste];
 }
 
+void wxWebViewWebKit::DeleteSelection()
+{
+    if ( !m_webView )
+        return;
+
+    [(WebView*)m_webView deleteSelection];
+}
+
 //------------------------------------------------------------
 // Listener interfaces
 //------------------------------------------------------------