mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-24 08:02:15 +02:00
113 lines
2.9 KiB
ObjectPascal
113 lines
2.9 KiB
ObjectPascal
unit uBrowserTab;
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{$mode objfpc}{$H+}
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{$I ../../../source/cef.inc}
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interface
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uses
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LCLIntf, LCLType, LMessages, Classes, Messages, ComCtrls, Controls,
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Forms,
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uBrowserFrame;
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type
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TBrowserTab = class(TTabSheet)
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protected
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FBrowserFrame : TBrowserFrame;
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FTabID : cardinal;
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function GetParentForm : TCustomForm;
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procedure SendFormMessage(aMsg : cardinal; aData : PtrInt = 0);
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procedure BrowserFrame_OnBrowserDestroyed(Sender: TObject);
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procedure BrowserFrame_OnBrowserTitleChange(Sender: TObject; const aTitle : string);
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property ParentForm : TCustomForm read GetParentForm;
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public
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constructor Create(AOwner: TComponent; aTabID : cardinal; const aCaption : string); reintroduce;
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procedure NotifyMoveOrResizeStarted;
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procedure CreateBrowser(const aHomepage : string);
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procedure CloseBrowser;
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property TabID : cardinal read FTabID;
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end;
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implementation
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uses
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uMainForm;
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constructor TBrowserTab.Create(AOwner: TComponent; aTabID : cardinal; const aCaption : string);
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begin
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inherited Create(AOwner);
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FTabID := aTabID;
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Caption := aCaption;
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FBrowserFrame := nil;
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end;
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function TBrowserTab.GetParentForm : TCustomForm;
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var
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TempParent : TWinControl;
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begin
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TempParent := Parent;
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while (TempParent <> nil) and not(TempParent is TCustomForm) do
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TempParent := TempParent.Parent;
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if (TempParent <> nil) and (TempParent is TCustomForm) then
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Result := TCustomForm(TempParent)
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else
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Result := nil;
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end;
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procedure TBrowserTab.SendFormMessage(aMsg : cardinal; aData : PtrInt);
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var
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TempForm : TCustomForm;
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begin
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TempForm := ParentForm;
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if (TempForm <> nil) and (TempForm is TMainForm) then
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TMainForm(TempForm).SendCompMessage(aMsg, aData);
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end;
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procedure TBrowserTab.NotifyMoveOrResizeStarted;
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begin
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FBrowserFrame.NotifyMoveOrResizeStarted;
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end;
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procedure TBrowserTab.CreateBrowser(const aHomepage : string);
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begin
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FBrowserFrame := TBrowserFrame.Create(self);
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FBrowserFrame.Parent := self;
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FBrowserFrame.Align := alClient;
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FBrowserFrame.Visible := True;
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FBrowserFrame.Homepage := aHomepage;
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FBrowserFrame.OnBrowserDestroyed := @BrowserFrame_OnBrowserDestroyed;
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FBrowserFrame.OnBrowserTitleChange := @BrowserFrame_OnBrowserTitleChange;
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FBrowserFrame.CreateBrowser;
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end;
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procedure TBrowserTab.CloseBrowser;
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begin
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if (FBrowserFrame <> nil) then FBrowserFrame.CloseBrowser;
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end;
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procedure TBrowserTab.BrowserFrame_OnBrowserDestroyed(Sender: TObject);
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begin
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// This event is executed in a CEF thread so we have to use
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// Application.QueueAsyncCall to destroy the tab in the main application
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// thread.
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SendFormMessage(CEF_DESTROYTAB, PtrInt(TabID));
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end;
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procedure TBrowserTab.BrowserFrame_OnBrowserTitleChange(Sender: TObject; const aTitle : string);
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begin
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Caption := aTitle;
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end;
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end.
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