Add wxWebView methods to enable dev tools

Currently only implemented for the Edge (Chromium) backend.

include/wx/msw/webview_edgec.h

@@ -111,6 +111,9 @@ public:
     virtual void EnableContextMenu(bool enable = true) wxOVERRIDE;
     virtual bool IsContextMenuEnabled() const wxOVERRIDE;
 
+    virtual void EnableDevTools(bool enable = true) wxOVERRIDE;
+    virtual bool IsDevToolsEnabled() const wxOVERRIDE;
+
     virtual bool RunScript(const wxString& javascript, wxString* output = NULL) wxOVERRIDE;
 
     virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler) wxOVERRIDE;

include/wx/webview.h

@@ -159,6 +159,7 @@ public:
     {
         m_showMenu = enable;
     }
+    virtual void EnableDevTools(bool WXUNUSED(enable) = true) { }
     virtual wxString GetCurrentTitle() const = 0;
     virtual wxString GetCurrentURL() const = 0;
     // TODO: handle choosing a frame when calling GetPageSource()?
@@ -166,6 +167,7 @@ public:
     virtual wxString GetPageText() const = 0;
     virtual bool IsBusy() const = 0;
     virtual bool IsContextMenuEnabled() const { return m_showMenu; }
+    virtual bool IsDevToolsEnabled() const { return false; }
     virtual bool IsEditable() const = 0;
     virtual void LoadURL(const wxString& url) = 0;
     virtual void Print() = 0;

interface/wx/webview.h

@@ -687,6 +687,27 @@ public:
     */
     virtual bool IsContextMenuEnabled() const;
 
+    /**
+        @name Dev Tools
+    */
+
+    /**
+        Enable or disable access to dev tools for the user.
+
+        This is currently only implemented for the Edge (Chromium) backend
+        where the dev tools are enabled by default.
+
+        @since 3.1.4
+    */
+    virtual void EnableDevTools(bool enable = true);
+
+    /**
+        Returns @true if dev tools are available to the user.
+
+        @since 3.1.4
+    */
+    virtual bool IsDevToolsEnabled() const;
+
     /**
         @name History
     */

samples/webview/webview.cpp

@@ -164,6 +164,7 @@ public:
     void OnFindText(wxCommandEvent& evt);
     void OnFindOptions(wxCommandEvent& evt);
     void OnEnableContextMenu(wxCommandEvent& evt);
+    void OnEnableDevTools(wxCommandEvent& evt);
 
 private:
     wxTextCtrl* m_url;
@@ -226,6 +227,7 @@ private:
     wxMenuItem* m_selection_delete;
     wxMenuItem* m_find;
     wxMenuItem* m_context_menu;
+    wxMenuItem* m_dev_tools;
 
     wxInfoBar *m_info;
     wxStaticText* m_info_text;
@@ -468,6 +470,7 @@ WebFrame::WebFrame(const wxString& url) :
     wxMenuItem* usememoryfs =  m_tools_menu->Append(wxID_ANY, _("Memory File System Example"));
 
     m_context_menu = m_tools_menu->AppendCheckItem(wxID_ANY, _("Enable Context Menu"));
+    m_dev_tools = m_tools_menu->AppendCheckItem(wxID_ANY, _("Enable Dev Tools"));
 
     //By default we want to handle navigation and new windows
     m_tools_handle_navigation->Check();
@@ -549,6 +552,7 @@ WebFrame::WebFrame(const wxString& url) :
     Bind(wxEVT_MENU, &WebFrame::OnUseMemoryFS, this, usememoryfs->GetId());
     Bind(wxEVT_MENU, &WebFrame::OnFind, this, m_find->GetId());
     Bind(wxEVT_MENU, &WebFrame::OnEnableContextMenu, this, m_context_menu->GetId());
+    Bind(wxEVT_MENU, &WebFrame::OnEnableDevTools, this, m_dev_tools->GetId());
 
     //Connect the idle events
     Bind(wxEVT_IDLE, &WebFrame::OnIdle, this);
@@ -710,6 +714,11 @@ void WebFrame::OnEnableContextMenu(wxCommandEvent& evt)
     m_browser->EnableContextMenu(evt.IsChecked());
 }
 
+void WebFrame::OnEnableDevTools(wxCommandEvent& evt)
+{
+    m_browser->EnableDevTools(evt.IsChecked());
+}
+
 void WebFrame::OnFind(wxCommandEvent& WXUNUSED(evt))
 {
     wxString value = m_browser->GetSelectedText();
@@ -943,6 +952,7 @@ void WebFrame::OnToolsClicked(wxCommandEvent& WXUNUSED(evt))
     m_selection_delete->Enable(m_browser->HasSelection());
 
     m_context_menu->Check(m_browser->IsContextMenuEnabled());
+    m_dev_tools->Check(m_browser->IsDevToolsEnabled());
 
     //Firstly we clear the existing menu items, then we add the current ones
     wxMenuHistoryMap::const_iterator it;

src/msw/webview_edgec.cpp

@@ -49,8 +49,7 @@ typedef HRESULT(__stdcall *PFNWXGetWebView2BrowserVersionInfo)(
 PFNWXCreateWebView2EnvironmentWithDetails wxCreateWebView2EnvironmentWithDetails = NULL;
 PFNWXGetWebView2BrowserVersionInfo wxGetWebView2BrowserVersionInfo = NULL;
 
-int wxWebViewEdgeChromium::ms_isAvailable = -1;
-wxDynamicLibrary wxWebViewEdgeChromium::ms_loaderDll;
+wxDynamicLibrary wxWebViewEdge::ms_loaderDll;
 
 bool wxWebViewEdge::IsAvailable()
 {
@@ -655,6 +654,30 @@ bool wxWebViewEdge::IsContextMenuEnabled() const
     return true;
 }
 
+void wxWebViewEdge::EnableDevTools(bool enable)
+{
+    wxCOMPtr<IWebView2Settings> settings;
+    if (SUCCEEDED(m_webView->get_Settings(&settings)))
+    {
+        settings->put_AreDevToolsEnabled(enable);
+    }
+}
+
+bool wxWebViewEdge::IsDevToolsEnabled() const
+{
+    wxCOMPtr<IWebView2Settings> settings;
+    if (SUCCEEDED(m_webView->get_Settings(&settings)))
+    {
+        BOOL devToolsEnabled = TRUE;
+        settings->get_AreDevToolsEnabled(&devToolsEnabled);
+
+        if (!devToolsEnabled)
+            return false;
+    }
+
+    return true;
+}
+
 bool wxWebViewEdge::RunScriptSync(const wxString& javascript, wxString* output)
 {
     bool scriptExecuted = false;