Added a new option to the DOMVisitor context menu and new option to the config button to the MiniBrowser demo

- The DOMVisitor demo now has a context menu option to copy the HTML inside the body element to the clipboard.
- The MiniBrowser demo now has a config button option to load local HTML files using a DATA url.

demos/DOMVisitor/uDOMVisitor.pas

@@ -53,12 +53,16 @@ uses
   uCEFChromium, uCEFWindowParent, uCEFInterfaces, uCEFApplication, uCEFTypes, uCEFConstants;
 
 const
-  MINIBROWSER_VISITDOM               = WM_APP + $101;
+  MINIBROWSER_VISITDOM_PARTIAL            = WM_APP + $101;
+  MINIBROWSER_VISITDOM_FULL               = WM_APP + $102;
 
-  MINIBROWSER_CONTEXTMENU_VISITDOM   = MENU_ID_USER_FIRST + 1;
+  MINIBROWSER_CONTEXTMENU_VISITDOM_PARTIAL = MENU_ID_USER_FIRST + 1;
+  MINIBROWSER_CONTEXTMENU_VISITDOM_FULL    = MENU_ID_USER_FIRST + 2;
 
-  DOMVISITOR_MSGNAME  = 'domvisitor';
+  DOMVISITOR_MSGNAME_PARTIAL  = 'domvisitorpartial';
-  RETRIEVEDOM_MSGNAME = 'retrievedom';
+  DOMVISITOR_MSGNAME_FULL     = 'domvisitorfull';
+  RETRIEVEDOM_MSGNAME_PARTIAL = 'retrievedompartial';
+  RETRIEVEDOM_MSGNAME_FULL    = 'retrievedomfull';
 
 type
   TDOMVisitorFrm = class(TForm)
@@ -109,7 +113,8 @@ type
 
     procedure BrowserCreatedMsg(var aMessage : TMessage); message CEF_AFTERCREATED;
     procedure BrowserDestroyMsg(var aMessage : TMessage); message CEF_DESTROY;
-    procedure VisitDOMMsg(var aMessage : TMessage); message MINIBROWSER_VISITDOM;
+    procedure VisitDOMMsg(var aMessage : TMessage); message MINIBROWSER_VISITDOM_PARTIAL;
+    procedure VisitDOM2Msg(var aMessage : TMessage); message MINIBROWSER_VISITDOM_FULL;
     procedure WMMove(var aMessage : TWMMove); message WM_MOVE;
     procedure WMMoving(var aMessage : TMessage); message WM_MOVING;
 
@@ -234,13 +239,25 @@ begin
   SimpleNodeSearch(document);
 
   // Sending back some custom results to the browser process
-  // Notice that the DOMVISITOR_MSGNAME message name needs to be recognized in
+  // Notice that the DOMVISITOR_MSGNAME_PARTIAL message name needs to be recognized in
   // Chromium1ProcessMessageReceived
-  msg := TCefProcessMessageRef.New(DOMVISITOR_MSGNAME);
+  msg := TCefProcessMessageRef.New(DOMVISITOR_MSGNAME_PARTIAL);
   msg.ArgumentList.SetString(0, 'document.Title : ' + document.Title);
   browser.SendProcessMessage(PID_BROWSER, msg);
 end;
 
+procedure DOMVisitor_OnDocAvailableFullMarkup(const browser: ICefBrowser; const document: ICefDomDocument);
+var
+  msg: ICefProcessMessage;
+begin
+  // Sending back some custom results to the browser process
+  // Notice that the DOMVISITOR_MSGNAME_FULL message name needs to be recognized in
+  // Chromium1ProcessMessageReceived
+  msg := TCefProcessMessageRef.New(DOMVISITOR_MSGNAME_FULL);
+  msg.ArgumentList.SetString(0, document.Body.AsMarkup);
+  browser.SendProcessMessage(PID_BROWSER, msg);
+end;
+
 procedure GlobalCEFApp_OnProcessMessageReceived(const browser       : ICefBrowser;
                                                       sourceProcess : TCefProcessId;
                                                 const message       : ICefProcessMessage;
@@ -249,7 +266,11 @@ var
   TempFrame   : ICefFrame;
   TempVisitor : TCefFastDomVisitor2;
 begin
-  if (browser <> nil) and (message.name = RETRIEVEDOM_MSGNAME) then
+  aHandled := False;
+
+  if (browser <> nil) then
+    begin
+      if (message.name = RETRIEVEDOM_MSGNAME_PARTIAL) then
         begin
           TempFrame := browser.MainFrame;
 
@@ -262,7 +283,19 @@ begin
           aHandled := True;
         end
        else
-    aHandled := False;
+        if (message.name = RETRIEVEDOM_MSGNAME_FULL) then
+          begin
+            TempFrame := browser.MainFrame;
+
+            if (TempFrame <> nil) then
+              begin
+                TempVisitor := TCefFastDomVisitor2.Create(browser, DOMVisitor_OnDocAvailableFullMarkup);
+                TempFrame.VisitDom(TempVisitor);
+              end;
+
+            aHandled := True;
+          end;
+    end;
 end;
 
 procedure TDOMVisitorFrm.Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
@@ -281,7 +314,8 @@ procedure TDOMVisitorFrm.Chromium1BeforeContextMenu(Sender: TObject;
   const browser: ICefBrowser; const frame: ICefFrame;
   const params: ICefContextMenuParams; const model: ICefMenuModel);
 begin
-  model.AddItem(MINIBROWSER_CONTEXTMENU_VISITDOM, 'Visit DOM in CEF');
+  model.AddItem(MINIBROWSER_CONTEXTMENU_VISITDOM_PARTIAL,  'Visit DOM in CEF (only Title)');
+  model.AddItem(MINIBROWSER_CONTEXTMENU_VISITDOM_FULL,     'Visit DOM in CEF (BODY HTML)');
 end;
 
 procedure TDOMVisitorFrm.Chromium1BeforePopup(Sender: TObject;
@@ -311,8 +345,11 @@ begin
   Result := False;
 
   case commandId of
-    MINIBROWSER_CONTEXTMENU_VISITDOM :
+    MINIBROWSER_CONTEXTMENU_VISITDOM_PARTIAL :
-      PostMessage(Handle, MINIBROWSER_VISITDOM, 0, 0);
+      PostMessage(Handle, MINIBROWSER_VISITDOM_PARTIAL, 0, 0);
+
+    MINIBROWSER_CONTEXTMENU_VISITDOM_FULL :
+      PostMessage(Handle, MINIBROWSER_VISITDOM_FULL, 0, 0);
   end;
 end;
 
@@ -324,11 +361,19 @@ begin
 
   if (message = nil) or (message.ArgumentList = nil) then exit;
 
-  if (message.Name = DOMVISITOR_MSGNAME) then
-    begin
   // Message received from the DOMVISITOR in CEF
+
+  if (message.Name = DOMVISITOR_MSGNAME_PARTIAL) then
+    begin
       ShowStatusText('DOM Visitor result text : ' + message.ArgumentList.GetString(0));
       Result := True;
+    end
+   else
+    if (message.Name = DOMVISITOR_MSGNAME_FULL) then
+      begin
+        Clipboard.AsText := message.ArgumentList.GetString(0);
+        ShowStatusText('HTML copied to the clipboard');
+        Result := True;
       end;
 end;
 
@@ -377,7 +422,7 @@ end;
 
 procedure TDOMVisitorFrm.VisitDOMBtnClick(Sender: TObject);
 begin
-  PostMessage(Handle, MINIBROWSER_VISITDOM, 0, 0);
+  PostMessage(Handle, MINIBROWSER_VISITDOM_PARTIAL, 0, 0);
 end;
 
 procedure TDOMVisitorFrm.VisitDOMMsg(var aMessage : TMessage);
@@ -385,7 +430,16 @@ var
   TempMsg : ICefProcessMessage;
 begin
   // Use the ArgumentList property if you need to pass some parameters.
-  TempMsg := TCefProcessMessageRef.New(RETRIEVEDOM_MSGNAME); // Same name than TCefCustomRenderProcessHandler.MessageName
+  TempMsg := TCefProcessMessageRef.New(RETRIEVEDOM_MSGNAME_PARTIAL); // Same name than TCefCustomRenderProcessHandler.MessageName
+  Chromium1.SendProcessMessage(PID_RENDERER, TempMsg);
+end;
+
+procedure TDOMVisitorFrm.VisitDOM2Msg(var aMessage : TMessage);
+var
+  TempMsg : ICefProcessMessage;
+begin
+  // Use the ArgumentList property if you need to pass some parameters.
+  TempMsg := TCefProcessMessageRef.New(RETRIEVEDOM_MSGNAME_FULL); // Same name than TCefCustomRenderProcessHandler.MessageName
   Chromium1.SendProcessMessage(PID_RENDERER, TempMsg);
 end;
 

demos/MiniBrowser/uMiniBrowser.dfm

@@ -286,9 +286,13 @@ object MiniBrowserFrm: TMiniBrowserFrm
       Caption = '-'
     end
     object Openfile1: TMenuItem
-      Caption = 'Open file...'
+      Caption = 'Open file with a FILE URL...'
       OnClick = Openfile1Click
     end
+    object OpenfilewithaDAT1: TMenuItem
+      Caption = 'Open file with a DATA URL...'
+      OnClick = OpenfilewithaDAT1Click
+    end
     object N2: TMenuItem
       Caption = '-'
     end

demos/MiniBrowser/uMiniBrowser.pas

@@ -114,6 +114,7 @@ type
     Openfile1: TMenuItem;
     Resolvehost1: TMenuItem;
     Timer1: TTimer;
+    OpenfilewithaDAT1: TMenuItem;
     procedure FormShow(Sender: TObject);
     procedure BackBtnClick(Sender: TObject);
     procedure ForwardBtnClick(Sender: TObject);
@@ -193,6 +194,7 @@ type
     procedure Chromium1RenderCompMsg(var aMessage : TMessage; var aHandled: Boolean);
     procedure Chromium1LoadingProgressChange(Sender: TObject;
       const browser: ICefBrowser; const progress: Double);
+    procedure OpenfilewithaDAT1Click(Sender: TObject);
 
   protected
     FResponse : TStringList;
@@ -242,7 +244,7 @@ implementation
 {$R *.dfm}
 
 uses
-  uPreferences, uCefStringMultimap, uSimpleTextViewer;
+  uPreferences, uCefStringMultimap, uCEFMiscFunctions, uSimpleTextViewer;
 
 // Destruction steps
 // =================
@@ -860,8 +862,42 @@ end;
 
 procedure TMiniBrowserFrm.Openfile1Click(Sender: TObject);
 begin
+  OpenDialog1.Filter := 'Any file (*.*)|*.*';
+
+  if OpenDialog1.Execute then
+    begin
       // This is a quick solution to load files. The file URL should be properly encoded.
-  if OpenDialog1.Execute then Chromium1.LoadURL('file:///' + OpenDialog1.FileName);
+      Chromium1.LoadURL('file:///' + OpenDialog1.FileName);
+    end;
+end;
+
+procedure TMiniBrowserFrm.OpenfilewithaDAT1Click(Sender: TObject);
+var
+  TempDATA : string;
+  TempFile : TMemoryStream;
+begin
+  TempFile := nil;
+
+  try
+    try
+      OpenDialog1.Filter := 'HTML files (*.html)|*.HTML;*.HTM';
+
+      if OpenDialog1.Execute then
+        begin
+          // Use TByteStream instead of TMemoryStream if your Delphi version supports it.
+          TempFile := TMemoryStream.Create;
+          TempFile.LoadFromFile(OpenDialog1.FileName);
+
+          TempDATA := 'data:text/html;charset=utf-8;base64,' + CefBase64Encode(TempFile.Memory, TempFile.Size);
+          Chromium1.LoadURL(TempDATA);
+        end;
+    except
+      on e : exception do
+        if CustomExceptionHandler('TMiniBrowserFrm.OpenfilewithaDAT1Click', e) then raise;
+    end;
+  finally
+    if (TempFile <> nil) then FreeAndNil(TempFile);
+  end;
 end;
 
 procedure TMiniBrowserFrm.PopupMenu1Popup(Sender: TObject);