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explorer: Initial implementation of desktop launchers.
This commit is contained in:
Hans Leidekker
Alexandre Julliard
parent
19a519e90a
commit
e44f0c8f2d
@ -2,6 +2,7 @@
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* Explorer desktop support
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*
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* Copyright 2006 Alexandre Julliard
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* Copyright 2013 Hans Leidekker for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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@ -22,9 +23,12 @@
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#include "wine/port.h"
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#include <stdio.h>
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#define COBJMACROS
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#define OEMRESOURCE
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#include <windows.h>
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#include <rpc.h>
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#include <shlobj.h>
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#include <shellapi.h>
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#include "wine/gdi_driver.h"
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#include "wine/unicode.h"
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@ -39,6 +43,300 @@ WINE_DEFAULT_DEBUG_CHANNEL(explorer);
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static HMODULE graphics_driver;
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static BOOL using_root;
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struct launcher
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{
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WCHAR *path;
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HICON icon;
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WCHAR *title;
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};
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static WCHAR *desktop_folder;
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static WCHAR *desktop_folder_public;
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static int icon_cx, icon_cy, icon_offset_cx, icon_offset_cy;
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static int title_cx, title_cy, title_offset_cx, title_offset_cy;
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static int desktop_width, launcher_size, launchers_per_row;
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static struct launcher **launchers;
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static unsigned int nb_launchers, nb_allocated;
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static RECT get_icon_rect( unsigned int index )
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{
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RECT rect;
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unsigned int row = index / launchers_per_row;
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unsigned int col = index % launchers_per_row;
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rect.left = col * launcher_size + icon_offset_cx;
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rect.right = rect.left + icon_cx;
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rect.top = row * launcher_size + icon_offset_cy;
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rect.bottom = rect.top + icon_cy;
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return rect;
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}
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static RECT get_title_rect( unsigned int index )
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{
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RECT rect;
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unsigned int row = index / launchers_per_row;
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unsigned int col = index % launchers_per_row;
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rect.left = col * launcher_size + title_offset_cx;
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rect.right = rect.left + title_cx;
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rect.top = row * launcher_size + title_offset_cy;
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rect.bottom = rect.top + title_cy;
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return rect;
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}
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static const struct launcher *launcher_from_point( int x, int y )
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{
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RECT icon, title;
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unsigned int index = x / launcher_size + (y / launcher_size) * launchers_per_row;
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if (index >= nb_launchers) return NULL;
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icon = get_icon_rect( index );
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title = get_title_rect( index );
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if ((x < icon.left || x > icon.right || y < icon.top || y > icon.bottom) &&
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(x < title.left || x > title.right || y < title.top || y > title.bottom)) return NULL;
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return launchers[index];
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}
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static void draw_launchers( HDC hdc, RECT update_rect )
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{
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COLORREF color = SetTextColor( hdc, RGB(255,255,255) ); /* FIXME: depends on background color */
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int mode = SetBkMode( hdc, TRANSPARENT );
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unsigned int i;
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LOGFONTW lf;
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HFONT font;
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SystemParametersInfoW( SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0 );
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font = SelectObject( hdc, CreateFontIndirectW( &lf ) );
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for (i = 0; i < nb_launchers; i++)
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{
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RECT dummy, icon = get_icon_rect( i ), title = get_title_rect( i );
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if (IntersectRect( &dummy, &icon, &update_rect ))
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DrawIconEx( hdc, icon.left, icon.top, launchers[i]->icon, icon_cx, icon_cy,
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0, 0, DI_DEFAULTSIZE|DI_NORMAL );
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if (IntersectRect( &dummy, &title, &update_rect ))
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DrawTextW( hdc, launchers[i]->title, -1, &title,
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DT_CENTER|DT_WORDBREAK|DT_EDITCONTROL|DT_END_ELLIPSIS );
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}
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SelectObject( hdc, font );
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SetTextColor( hdc, color );
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SetBkMode( hdc, mode );
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}
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static void do_launch( const struct launcher *launcher )
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{
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static const WCHAR openW[] = {'o','p','e','n',0};
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ShellExecuteW( NULL, openW, launcher->path, NULL, NULL, 0 );
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}
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static WCHAR *append_path( const WCHAR *path, const WCHAR *filename, int len_filename )
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{
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int len_path = strlenW( path );
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WCHAR *ret;
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if (len_filename == -1) len_filename = strlenW( filename );
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if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len_path + len_filename + 2) * sizeof(WCHAR) )))
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return NULL;
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memcpy( ret, path, len_path * sizeof(WCHAR) );
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ret[len_path] = '\\';
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memcpy( ret + len_path + 1, filename, len_filename * sizeof(WCHAR) );
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ret[len_path + 1 + len_filename] = 0;
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return ret;
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}
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static IShellLinkW *load_shelllink( const WCHAR *path )
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{
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HRESULT hr;
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IShellLinkW *link;
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IPersistFile *file;
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hr = CoCreateInstance( &CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, &IID_IShellLinkW,
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(void **)&link );
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if (FAILED( hr )) return NULL;
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hr = IShellLinkW_QueryInterface( link, &IID_IPersistFile, (void **)&file );
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if (FAILED( hr ))
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{
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IShellLinkW_Release( link );
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return NULL;
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}
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hr = IPersistFile_Load( file, path, 0 );
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IPersistFile_Release( file );
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if (FAILED( hr ))
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{
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IShellLinkW_Release( link );
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return NULL;
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}
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return link;
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}
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static HICON extract_icon( IShellLinkW *link )
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{
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WCHAR tmp_path[MAX_PATH], icon_path[MAX_PATH], target_path[MAX_PATH];
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HICON icon = NULL;
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int index;
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tmp_path[0] = 0;
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IShellLinkW_GetIconLocation( link, tmp_path, MAX_PATH, &index );
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ExpandEnvironmentStringsW( tmp_path, icon_path, MAX_PATH );
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if (icon_path[0]) ExtractIconExW( icon_path, index, &icon, NULL, 1 );
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if (!icon)
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{
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tmp_path[0] = 0;
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IShellLinkW_GetPath( link, tmp_path, MAX_PATH, NULL, SLGP_RAWPATH );
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ExpandEnvironmentStringsW( tmp_path, target_path, MAX_PATH );
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ExtractIconExW( target_path, index, &icon, NULL, 1 );
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}
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return icon;
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}
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static WCHAR *build_title( const WCHAR *filename, int len )
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{
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const WCHAR *p;
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WCHAR *ret;
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if (len == -1) len = strlenW( filename );
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for (p = filename + len - 1; p >= filename; p--)
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{
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if (*p == '.')
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{
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len = p - filename;
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break;
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}
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}
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if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) return NULL;
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memcpy( ret, filename, len * sizeof(WCHAR) );
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ret[len] = 0;
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return ret;
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}
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static BOOL add_launcher( const WCHAR *folder, const WCHAR *filename, int len_filename )
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{
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struct launcher *launcher;
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IShellLinkW *link;
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if (nb_launchers == nb_allocated)
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{
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unsigned int count = nb_allocated * 2;
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struct launcher **tmp = HeapReAlloc( GetProcessHeap(), 0, launchers, count * sizeof(*tmp) );
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if (!tmp) return FALSE;
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launchers = tmp;
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nb_allocated = count;
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}
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if (!(launcher = HeapAlloc( GetProcessHeap(), 0, sizeof(*launcher) ))) return FALSE;
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if (!(launcher->path = append_path( folder, filename, len_filename ))) goto error;
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if (!(link = load_shelllink( launcher->path ))) goto error;
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launcher->icon = extract_icon( link );
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launcher->title = build_title( filename, len_filename );
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IShellLinkW_Release( link );
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if (launcher->icon && launcher->title)
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{
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launchers[nb_launchers++] = launcher;
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return TRUE;
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}
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HeapFree( GetProcessHeap(), 0, launcher->title );
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DestroyIcon( launcher->icon );
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error:
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HeapFree( GetProcessHeap(), 0, launcher->path );
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HeapFree( GetProcessHeap(), 0, launcher );
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return FALSE;
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}
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static BOOL get_icon_text_metrics( HWND hwnd, TEXTMETRICW *tm )
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{
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BOOL ret;
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HDC hdc;
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LOGFONTW lf;
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HFONT hfont;
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hdc = GetDC( hwnd );
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SystemParametersInfoW( SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0 );
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hfont = SelectObject( hdc, CreateFontIndirectW( &lf ) );
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ret = GetTextMetricsW( hdc, tm );
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SelectObject( hdc, hfont );
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ReleaseDC( hwnd, hdc );
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return ret;
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}
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static void add_folder( const WCHAR *folder )
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{
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static const WCHAR lnkW[] = {'\\','*','.','l','n','k',0};
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int len = strlenW( folder ) + strlenW( lnkW );
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WIN32_FIND_DATAW data;
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HANDLE handle;
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WCHAR *glob;
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if (!(glob = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) return;
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strcpyW( glob, folder );
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strcatW( glob, lnkW );
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if ((handle = FindFirstFileW( glob, &data )) != INVALID_HANDLE_VALUE)
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{
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do { add_launcher( folder, data.cFileName, -1 ); } while (FindNextFileW( handle, &data ));
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FindClose( handle );
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}
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HeapFree( GetProcessHeap(), 0, glob );
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}
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#define BORDER_SIZE 4
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#define PADDING_SIZE 4
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#define TITLE_CHARS 14
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static void initialize_launchers( HWND hwnd )
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{
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HRESULT hr, init;
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TEXTMETRICW tm;
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int icon_size;
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if (!(get_icon_text_metrics( hwnd, &tm ))) return;
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icon_cx = GetSystemMetrics( SM_CXICON );
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icon_cy = GetSystemMetrics( SM_CYICON );
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icon_size = max( icon_cx, icon_cy );
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title_cy = tm.tmHeight * 2;
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title_cx = max( tm.tmAveCharWidth * TITLE_CHARS, icon_size + PADDING_SIZE + title_cy );
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launcher_size = BORDER_SIZE + title_cx + BORDER_SIZE;
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icon_offset_cx = (launcher_size - icon_cx) / 2;
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icon_offset_cy = BORDER_SIZE + (icon_size - icon_cy) / 2;
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title_offset_cx = BORDER_SIZE;
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title_offset_cy = BORDER_SIZE + icon_size + PADDING_SIZE;
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desktop_width = GetSystemMetrics( SM_CXSCREEN );
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launchers_per_row = desktop_width / launcher_size;
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hr = SHGetKnownFolderPath( &FOLDERID_Desktop, 0, NULL, &desktop_folder );
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if (FAILED( hr ))
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{
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WINE_ERR("Could not get user desktop folder\n");
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return;
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}
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hr = SHGetKnownFolderPath( &FOLDERID_PublicDesktop, 0, NULL, &desktop_folder_public );
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if (FAILED( hr ))
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{
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WINE_ERR("Could not get public desktop folder\n");
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CoTaskMemFree( desktop_folder );
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return;
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}
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if ((launchers = HeapAlloc( GetProcessHeap(), 0, 2 * sizeof(struct launcher) )))
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{
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nb_allocated = 2;
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init = CoInitialize( NULL );
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add_folder( desktop_folder );
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add_folder( desktop_folder_public );
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if (SUCCEEDED( init )) CoUninitialize();
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}
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}
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/* screen saver handler */
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static BOOL start_screensaver( void )
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{
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@ -92,11 +390,22 @@ static LRESULT WINAPI desktop_wnd_proc( HWND hwnd, UINT message, WPARAM wp, LPAR
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SystemParametersInfoW( SPI_SETDESKWALLPAPER, 0, NULL, FALSE );
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return 0;
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case WM_LBUTTONDBLCLK:
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{
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const struct launcher *launcher = launcher_from_point( (short)LOWORD(lp), (short)HIWORD(lp) );
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if (launcher) do_launch( launcher );
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}
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return 0;
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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BeginPaint( hwnd, &ps );
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if (!using_root && ps.fErase) PaintDesktop( ps.hdc );
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if (!using_root)
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{
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if (ps.fErase) PaintDesktop( ps.hdc );
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draw_launchers( ps.hdc, ps.rcPaint );
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}
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EndPaint( hwnd, &ps );
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}
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return 0;
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@ -327,6 +636,7 @@ void manage_desktop( WCHAR *arg )
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initialize_display_settings( hwnd );
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initialize_appbar();
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initialize_systray( graphics_driver, using_root );
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initialize_launchers( hwnd );
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if ((shell32 = LoadLibraryA( "shell32.dll" )) &&
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(pShellDDEInit = (void *)GetProcAddress( shell32, (LPCSTR)188)))
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