mirror of https://gitlab.com/basile.b/dexed.git
398 lines
9.7 KiB
Plaintext
398 lines
9.7 KiB
Plaintext
unit ce_miniexplorer;
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{$I ce_defines.inc}
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interface
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uses
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Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ExtCtrls,
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Menus, ComCtrls, Buttons, lcltype, strutils, ce_widget, ce_common;
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type
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TCEMiniExplorerWidget = class(TCEWidget)
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Bevel1: TBevel;
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Bevel2: TBevel;
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btnAddFav: TBitBtn;
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btnEdit: TBitBtn;
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btnShellOpen: TBitBtn;
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btnRemFav: TBitBtn;
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imgList: TImageList;
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lstFiles: TListView;
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lstFav: TListView;
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Panel1: TPanel;
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Splitter1: TSplitter;
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Splitter2: TSplitter;
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Tree: TTreeView;
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procedure btnEditClick(Sender: TObject);
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procedure btnShellOpenClick(Sender: TObject);
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procedure btnAddFavClick(Sender: TObject);
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procedure btnRemFavClick(Sender: TObject);
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procedure lstFilesDblClick(Sender: TObject);
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private
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fFavorites: TStringList;
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fLastFold: string;
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procedure lstFavDblClick(Sender: TObject);
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procedure optset_LastFold(aReader: TReader);
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procedure optget_LastFold(aWriter: TWriter);
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procedure optset_Favs(aReader: TReader);
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procedure optget_Favs(aWriter: TWriter);
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procedure updateFavorites;
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procedure treeSetRoots;
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procedure lstFilesFromTree;
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procedure treeScanSubFolders(aRoot: TTreeNode);
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procedure treeClick(sender: TObject);
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procedure treeChanged(Sender: TObject; Node: TTreeNode);
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procedure treeExpanding(Sender: TObject; Node: TTreeNode; var allow: boolean);
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procedure treeDeletion(Sender: TObject; Item: TTreeNode);
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procedure treeSelectionChanged(sender: TObject);
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procedure favStringsChange(sender: TObject);
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procedure fillLstFiles(const aList: TStrings);
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procedure lstDeletion(Sender: TObject; Item: TListItem);
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procedure lstFavSelect(Sender: TObject; Item: TListItem; Selected: Boolean);
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procedure shellOpenSelected;
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public
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constructor create(aIwner: TComponent); override;
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destructor destroy; override;
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//
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procedure sesoptDeclareProperties(aFiler: TFiler); override;
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//
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procedure expandPath(const aPath: string);
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end;
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implementation
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{$R *.lfm}
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uses
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ce_main;
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{$REGION Standard Comp/Obj------------------------------------------------------}
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constructor TCEMiniExplorerWidget.create(aIwner: TComponent);
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begin
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inherited;
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fFavorites := TStringList.Create;
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fFavorites.onChange := @favStringsChange;
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lstFiles.OnDeletion := @lstDeletion;
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lstFav.OnDeletion := @lstDeletion;
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lstFav.OnSelectItem := @lstFavSelect;
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lstFav.OnDblClick := @lstFavDblClick;
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//
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Tree.OnClick := @treeClick;
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Tree.OnChange := @treeChanged;
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Tree.OnDeletion := @treeDeletion;
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Tree.OnSelectionChanged := @treeSelectionChanged;
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Tree.OnExpanding := @treeExpanding;
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//
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treeSetRoots;
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end;
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destructor TCEMiniExplorerWidget.destroy;
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begin
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fFavorites.Free;
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inherited;
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end;
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procedure TCEMiniExplorerWidget.lstDeletion(Sender: TObject; Item: TListItem);
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begin
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if Item.Data <> nil then
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DisposeStr(PString(Item.Data));
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end;
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{$ENDREGION}
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{$REGION ICEWidgetPersist ------------------------------------------------------}
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procedure TCEMiniExplorerWidget.sesoptDeclareProperties(aFiler: TFiler);
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begin
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inherited;
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aFiler.DefineProperty(Name + '_LastFolder', @optset_LastFold, @optget_LastFold, true);
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aFiler.DefineProperty(Name + '_FavoritesFolders', @optset_Favs, @optget_Favs, true);
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end;
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procedure TCEMiniExplorerWidget.optset_LastFold(aReader: TReader);
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var
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lst: TstringList;
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begin
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fLastFold := aReader.ReadString;
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if not directoryExists(fLastFold) then exit;
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//
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lst := TStringList.Create;
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try
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listFiles(lst, fLastFold);
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fillLstFiles(lst);
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finally
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lst.Free;
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end;
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end;
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procedure TCEMiniExplorerWidget.optget_LastFold(aWriter: TWriter);
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begin
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aWriter.WriteString(fLastFold);
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end;
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procedure TCEMiniExplorerWidget.optset_Favs(aReader: TReader);
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begin
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fFavorites.DelimitedText := aReader.ReadString;
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if fLastFold <> '' then
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if fFavorites.IndexOf(fLastFold) = -1 then
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fFavorites.Add(fLastFold);
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updateFavorites;
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end;
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procedure TCEMiniExplorerWidget.optget_Favs(aWriter: TWriter);
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begin
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aWriter.WriteString(fFavorites.DelimitedText);
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end;
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{$ENDREGION}
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{$REGION Favorites -------------------------------------------------------------}
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procedure TCEMiniExplorerWidget.favStringsChange(sender: TObject);
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begin
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updateFavorites;
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end;
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procedure TCEMiniExplorerWidget.updateFavorites;
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var
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itm: TListItem;
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fold: string;
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dat: PString;
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begin
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lstFav.Clear;
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for fold in fFavorites do
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begin
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itm := lstFav.Items.Add;
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itm.Caption := shortenPath(fold);
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dat := NewStr(fold);
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itm.Data := dat;
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itm.ImageIndex := 2;
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end;
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end;
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procedure TCEMiniExplorerWidget.lstFavSelect(Sender: TObject; Item: TListItem; Selected: Boolean);
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var
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lst: TStringList;
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begin
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if not Selected then exit;
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//
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fLastFold := PString(Item.Data)^;
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lst := TStringList.Create;
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try
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lstFiles.Items.Clear;
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listFiles(lst, fLastFold);
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fillLstFiles(lst);
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finally
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lst.Free;
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end;
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end;
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procedure TCEMiniExplorerWidget.btnRemFavClick(Sender: TObject);
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var
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i: Integer;
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begin
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if lstFav.Selected = nil then exit;
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i := fFavorites.IndexOf(PString(lstFav.Selected.Data)^);
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if i <> -1 then fFavorites.Delete(i);
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lstFiles.Clear;
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end;
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procedure TCEMiniExplorerWidget.btnAddFavClick(Sender: TObject);
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begin
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if Tree.Selected = nil then exit;
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fFavorites.Add(PString(Tree.Selected.Data)^);
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end;
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procedure TCEMiniExplorerWidget.lstFavDblClick(Sender: TObject);
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begin
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if lstFav.Selected = nil then exit;
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lstFiles.Items.Clear;
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expandPath(lstFav.Selected.Caption);
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end;
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{$ENDREGION}
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{$REGION Files -----------------------------------------------------------------}
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procedure TCEMiniExplorerWidget.fillLstFiles(const aList: TStrings);
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var
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itm: TListItem;
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fname: string;
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dat: PString;
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begin
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lstFiles.Clear;
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for fname in aList do
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begin
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itm := lstFiles.Items.Add;
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itm.Caption := extractFileName(fname);
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dat := NewStr(fname);
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itm.Data := dat;
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itm.ImageIndex := 0;
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end;
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end;
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procedure TCEMiniExplorerWidget.btnShellOpenClick(Sender: TObject);
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begin
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shellOpenSelected;
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end;
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procedure TCEMiniExplorerWidget.btnEditClick(Sender: TObject);
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var
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fname: string;
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begin
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if lstFiles.Selected = nil then exit;
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if lstFiles.Selected.Data = nil then exit;
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fname := PString(lstFiles.Selected.Data)^;
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if not fileExists(fname) then exit;
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CEMainForm.openFile(fname);
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end;
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procedure TCEMiniExplorerWidget.lstFilesDblClick(Sender: TObject);
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begin
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shellOpenSelected;
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end;
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procedure TCEMiniExplorerWidget.shellOpenSelected;
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var
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fname: string;
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begin
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if lstFiles.Selected = nil then exit;
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if lstFiles.Selected.Data = nil then exit;
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fname := PString(lstFiles.Selected.Data)^;
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if not fileExists(fname) then exit;
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if not shellOpen(fname) then CEMainForm.MessageWidget.addCeErr
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(format('the shell failed to open "%s"', [shortenPath(fname, 25)]));
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end;
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{$ENDREGION}
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{$REGION Tree ------------------------------------------------------------------}
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procedure TCEMiniExplorerWidget.treeDeletion(Sender: TObject; Item: TTreeNode);
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begin
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if Item.Data <> nil then
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DisposeStr(PString(Item.Data));
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end;
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procedure TCEMiniExplorerWidget.treeSetRoots;
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var
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drv: string;
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itm: TTreeNode;
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lst: TStringList;
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begin
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Tree.Items.Clear;
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lst := TStringList.Create;
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try
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listDrives(lst);
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for drv in lst do
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begin
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itm := Tree.Items.Add(nil, drv);
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itm.Data := NewStr(drv[1..length(drv)-1]);
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treeScanSubFolders(itm);
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end;
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finally
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lst.Free;
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end;
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end;
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procedure TCEMiniExplorerWidget.lstFilesFromTree;
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var
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lst: TStringList;
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pth: string;
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begin
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if Tree.Selected = nil then exit;
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//
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lst := TStringList.Create;
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try
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pth := PString(Tree.Selected.Data)^;
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listFiles(lst, pth);
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fillLstFiles(lst);
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finally
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lst.Free;
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end;
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end;
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procedure TCEMiniExplorerWidget.treeScanSubFolders(aRoot: TTreeNode);
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var
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lst: TStringList;
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fold: string;
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itm: TTreeNode;
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begin
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aRoot.DeleteChildren; // delete the fake item...
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lst := TStringList.Create;
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try
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listFolders(lst, PString(aRoot.Data)^ + directorySeparator);
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for fold in lst do
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begin
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itm := Tree.Items.AddChild(aRoot, extractFileName(fold));
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itm.Data := NewStr(fold);
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itm.ImageIndex := 1;
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itm.SelectedIndex := 1;
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//
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if hasFolder(fold) then
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Tree.Items.AddChild(itm, ''); //...created here to show the expander glyph
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end;
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finally
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lst.Free;
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end;
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end;
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procedure TCEMiniExplorerWidget.treeExpanding(Sender: TObject; Node: TTreeNode; var allow: boolean);
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begin
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if Node <> nil then
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treeScanSubFolders(Node);
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allow := true;
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end;
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procedure TCEMiniExplorerWidget.treeChanged(Sender: TObject; Node: TTreeNode);
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begin
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if Node = nil then exit;
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Node.DeleteChildren;
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treeScanSubFolders(Node);
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lstFilesFromTree;
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end;
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procedure TCEMiniExplorerWidget.treeSelectionChanged(sender: TObject);
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begin
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lstFilesFromTree;
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end;
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procedure TCEMiniExplorerWidget.treeClick(sender: TObject);
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begin
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if Tree.Selected = nil then exit;
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if Tree.Selected.Expanded then exit;
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treeScanSubFolders(Tree.Selected);
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end;
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procedure TCEMiniExplorerWidget.expandPath(const aPath: string);
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var
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i: NativeInt;
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node : TTreeNode;
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function dig(const aRoot: TTreenode): boolean;
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var
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i: NativeInt;
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str: string;
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begin
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result := false;
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for i := 0 to aRoot.Count-1 do
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begin
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str := PString(aRoot.Items[i].Data)^;
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if LeftStr(aPath, length(str)) = str then
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begin
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result := true;
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Tree.Selected := aRoot.Items[i];
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Tree.Selected.Expand(false);
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//
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if str = aPath then break;
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if dig(Tree.Selected) then break;
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end;
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end;
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end;
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begin
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for i := 0 to Tree.Items.Count-1 do
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begin
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node := Tree.Items[i];
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if node.Level = 0 then
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begin
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node.Selected := true;
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node.Expand(false);
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end;
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if dig(node) then break;
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end;
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end;
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{$ENDREGION}
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end.
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