mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
03f9e9a1b9
Fixed issue #404 : Memory leak with empty TChromiumDefaultUrl Fixed crash in RasperryPi OS 64 bits
296 lines
9.0 KiB
ObjectPascal
296 lines
9.0 KiB
ObjectPascal
// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright © 2022 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFDomNode;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$I cef.inc}
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{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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interface
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uses
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{$IFDEF DELPHI16_UP}
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{$IFDEF MSWINDOWS}WinApi.Windows,{$ENDIF} System.Classes, System.SysUtils,
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{$ELSE}
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{$IFDEF MSWINDOWS}Windows,{$ENDIF} Classes, SysUtils,
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{$ENDIF}
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
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type
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TCefDomNodeRef = class(TCefBaseRefCountedRef, ICefDomNode)
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protected
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function GetType: TCefDomNodeType;
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function IsText: Boolean;
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function IsElement: Boolean;
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function IsEditable: Boolean;
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function IsFormControlElement: Boolean;
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function GetFormControlElementType: ustring;
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function IsSame(const that: ICefDomNode): Boolean;
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function GetName: ustring;
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function GetValue: ustring;
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function SetValue(const value: ustring): Boolean;
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function GetAsMarkup: ustring;
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function GetDocument: ICefDomDocument;
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function GetParent: ICefDomNode;
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function GetPreviousSibling: ICefDomNode;
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function GetNextSibling: ICefDomNode;
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function HasChildren: Boolean;
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function GetFirstChild: ICefDomNode;
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function GetLastChild: ICefDomNode;
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function GetElementTagName: ustring;
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function HasElementAttributes: Boolean;
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function HasElementAttribute(const attrName: ustring): Boolean;
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function GetElementAttribute(const attrName: ustring): ustring;
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procedure GetElementAttributes(const attrMap: ICefStringMap); overload;
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procedure GetElementAttributes(var attrList: TStrings); overload;
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function SetElementAttribute(const attrName, value: ustring): Boolean;
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function GetElementInnerText: ustring;
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function GetElementBounds: TCefRect;
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public
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class function UnWrap(data: Pointer): ICefDomNode;
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end;
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implementation
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uses
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uCEFMiscFunctions, uCEFDomDocument, uCEFStringMap;
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function TCefDomNodeRef.GetAsMarkup: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_as_markup(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetDocument: ICefDomDocument;
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begin
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Result := TCefDomDocumentRef.UnWrap(PCefDomNode(FData)^.get_document(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetElementAttribute(const attrName: ustring): ustring;
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var
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TempName : TCefString;
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begin
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TempName := CefString(attrName);
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_element_attribute(PCefDomNode(FData), @TempName));
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end;
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procedure TCefDomNodeRef.GetElementAttributes(const attrMap: ICefStringMap);
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begin
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PCefDomNode(FData)^.get_element_attributes(PCefDomNode(FData), attrMap.Handle);
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end;
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procedure TCefDomNodeRef.GetElementAttributes(var attrList: TStrings);
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var
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TempStrMap : ICefStringMap;
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i, j : NativeUInt;
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TempKey, TempValue : ustring;
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begin
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TempStrMap := nil;
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try
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try
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if (attrList <> nil) then
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begin
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TempStrMap := TCefStringMapOwn.Create;
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PCefDomNode(FData)^.get_element_attributes(PCefDomNode(FData), TempStrMap.Handle);
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i := 0;
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j := TempStrMap.Size;
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while (i < j) do
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begin
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TempKey := TempStrMap.Key[i];
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TempValue := TempStrMap.Value[i];
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if (length(TempKey) > 0) and (length(TempValue) > 0) then
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attrList.Add(TempKey + attrList.NameValueSeparator + TempValue)
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else
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if (length(TempKey) > 0) then
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attrList.Add(TempKey)
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else
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if (length(TempValue) > 0) then
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attrList.Add(TempValue);
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inc(i);
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end;
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end;
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except
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on e : exception do
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if CustomExceptionHandler('TCefDomNodeRef.GetElementAttributes', e) then raise;
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end;
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finally
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TempStrMap := nil;
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end;
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end;
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function TCefDomNodeRef.GetElementInnerText: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_element_inner_text(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetElementBounds: TCefRect;
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begin
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Result := PCefDomNode(FData)^.get_element_bounds(PCefDomNode(FData));
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end;
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function TCefDomNodeRef.GetElementTagName: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_element_tag_name(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetFirstChild: ICefDomNode;
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begin
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Result := TCefDomNodeRef.UnWrap(PCefDomNode(FData)^.get_first_child(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetFormControlElementType: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_form_control_element_type(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetLastChild: ICefDomNode;
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begin
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Result := TCefDomNodeRef.UnWrap(PCefDomNode(FData)^.get_last_child(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetName: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_name(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetNextSibling: ICefDomNode;
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begin
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Result := TCefDomNodeRef.UnWrap(PCefDomNode(FData)^.get_next_sibling(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetParent: ICefDomNode;
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begin
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Result := TCefDomNodeRef.UnWrap(PCefDomNode(FData)^.get_parent(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetPreviousSibling: ICefDomNode;
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begin
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Result := TCefDomNodeRef.UnWrap(PCefDomNode(FData)^.get_previous_sibling(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.GetType: TCefDomNodeType;
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begin
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Result := PCefDomNode(FData)^.get_type(PCefDomNode(FData));
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end;
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function TCefDomNodeRef.GetValue: ustring;
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begin
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Result := CefStringFreeAndGet(PCefDomNode(FData)^.get_value(PCefDomNode(FData)));
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end;
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function TCefDomNodeRef.HasChildren: Boolean;
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begin
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Result := PCefDomNode(FData)^.has_children(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.HasElementAttribute(const attrName: ustring): Boolean;
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var
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TempName : TCefString;
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begin
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TempName := CefString(attrName);
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Result := PCefDomNode(FData)^.has_element_attribute(PCefDomNode(FData), @TempName) <> 0;
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end;
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function TCefDomNodeRef.HasElementAttributes: Boolean;
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begin
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Result := PCefDomNode(FData)^.has_element_attributes(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.IsEditable: Boolean;
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begin
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Result := PCefDomNode(FData)^.is_editable(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.IsElement: Boolean;
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begin
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Result := PCefDomNode(FData)^.is_element(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.IsFormControlElement: Boolean;
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begin
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Result := PCefDomNode(FData)^.is_form_control_element(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.IsSame(const that: ICefDomNode): Boolean;
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begin
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Result := PCefDomNode(FData)^.is_same(PCefDomNode(FData), CefGetData(that)) <> 0;
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end;
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function TCefDomNodeRef.IsText: Boolean;
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begin
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Result := PCefDomNode(FData)^.is_text(PCefDomNode(FData)) <> 0;
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end;
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function TCefDomNodeRef.SetElementAttribute(const attrName, value: ustring): Boolean;
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var
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TempName, TempValue : TCefString;
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begin
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TempName := CefString(attrName);
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TempValue := CefString(value);
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Result := PCefDomNode(FData)^.set_element_attribute(PCefDomNode(FData), @TempName, @TempValue) <> 0;
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end;
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function TCefDomNodeRef.SetValue(const value: ustring): Boolean;
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var
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TempValue : TCefString;
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begin
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TempValue := CefString(value);
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Result := PCefDomNode(FData)^.set_value(PCefDomNode(FData), @TempValue) <> 0;
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end;
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class function TCefDomNodeRef.UnWrap(data: Pointer): ICefDomNode;
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begin
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if (data <> nil) then
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Result := Create(data) as ICefDomNode
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else
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Result := nil;
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end;
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end.
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