ptk-file-browser.c

台湾人开发的Linux下的文件管理器

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "ptk-file-browser.h"
#include <gtk/gtk.h>

#include <glib.h>
#include <glib/gi18n.h>

#include <gdk/gdkkeysyms.h>

#include <string.h>
#include <stdio.h>

#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <errno.h>
#include <unistd.h>

/* MIME type processing library from FreeDesktop.org */
#include "xdgmime.h"

#include "app-chooser-dialog.h"

#include "ptk-file-icon-renderer.h"
#include "ptk-utils.h"
#include "ptk-input-dialog.h"
#include "ptk-file-task.h"

#include "ptk-location-view.h"
#include "ptk-dir-tree-view.h"

#include "settings.h"

#include "vfs-dir.h"
#include "vfs-file-info.h"
#include "vfs-file-monitor.h"
#include "vfs-app-desktop.h"
#include "ptk-file-list.h"
#include "ptk-text-renderer.h"

#include "ptk-file-archiver.h"
#include "ptk-clipboard.h"

#include "ptk-file-menu.h"

/* If set to FALSE, all selection changes in folder_view are prevented. */
static gboolean can_folder_view_sel_change = TRUE;

static void ptk_file_browser_class_init( PtkFileBrowserClass* klass );
static void ptk_file_browser_init( PtkFileBrowser* file_browser );
static void ptk_file_browser_finalize( GObject *obj );
static void ptk_file_browser_get_property ( GObject *obj,
                                            guint prop_id,
                                            GValue *value,
                                            GParamSpec *pspec );
static void ptk_file_browser_set_property ( GObject *obj,
                                            guint prop_id,
                                            const GValue *value,
                                            GParamSpec *pspec );

/* Utility functions */
static GtkWidget* create_folder_view( PtkFileBrowser* file_browser,
                                      PtkFileBrowserViewMode view_mode );

static void init_list_view( GtkTreeView* list_view );

static GtkTreeView* ptk_file_browser_create_dir_tree( PtkFileBrowser* file_browser );

static GtkTreeView* ptk_file_browser_create_location_view( PtkFileBrowser* file_browser );

static GList* folder_view_get_selected_items( PtkFileBrowser* file_browser,
                                              GtkTreeModel** model );

static void ptk_file_browser_chdir_state_cb( VFSDir* dir,
                                             int state,
                                             gpointer user_data );

void ptk_file_browser_open_selected_files_with_app( PtkFileBrowser* file_browser,
                                                    char* app_desktop );

static void
ptk_file_browser_cut_or_copy( PtkFileBrowser* file_browser,
                              gboolean copy );

/* Get GtkTreePath of the item at coordinate x, y */
static GtkTreePath*
folder_view_get_tree_path_at_pos( PtkFileBrowser* file_browser, int x, int y );

/* sort functions of folder view */
static gint sort_files_by_name ( GtkTreeModel *model,
                                 GtkTreeIter *a,
                                 GtkTreeIter *b,
                                 gpointer user_data );

static gint sort_files_by_size ( GtkTreeModel *model,
                                 GtkTreeIter *a,
                                 GtkTreeIter *b,
                                 gpointer user_data );

static gint sort_files_by_time ( GtkTreeModel *model,
                                 GtkTreeIter *a,
                                 GtkTreeIter *b,
                                 gpointer user_data );


static gboolean filter_files ( GtkTreeModel *model,
                               GtkTreeIter *it,
                               gpointer user_data );

/* sort functions of dir tree */
static gint sort_dir_tree_by_name ( GtkTreeModel *model,
                                    GtkTreeIter *a,
                                    GtkTreeIter *b,
                                    gpointer user_data );

/* signal handlers */
static void
on_folder_view_item_activated ( PtkIconView *iconview,
                                GtkTreePath *path,
                                PtkFileBrowser* file_browser );
static void
on_folder_view_row_activated ( GtkTreeView *tree_view,
                               GtkTreePath *path,
                               GtkTreeViewColumn* col,
                               PtkFileBrowser* file_browser );
static void
on_folder_view_item_sel_change ( PtkIconView *iconview,
                                 PtkFileBrowser* file_browser );
static gboolean
on_folder_view_key_press_event ( GtkWidget *widget,
                                 GdkEventKey *event,
                                 PtkFileBrowser* file_browser );
static gboolean
on_folder_view_button_press_event ( GtkWidget *widget,
                                    GdkEventButton *event,
                                    PtkFileBrowser* file_browser );
static gboolean
on_folder_view_button_release_event ( GtkWidget *widget,
                                      GdkEventButton *event,
                                      PtkFileBrowser* file_browser );
static gboolean
on_folder_view_popup_menu ( GtkWidget *widget,
                            PtkFileBrowser* file_browser );
static void
on_folder_view_scroll_scrolled ( GtkAdjustment *adjust,
                                 PtkFileBrowser* file_browser );
static void
on_dir_tree_sel_changed ( GtkTreeSelection *treesel,
                          PtkFileBrowser* file_browser );
static void
on_location_view_row_activated ( GtkTreeView *tree_view,
                                 GtkTreePath *path,
                                 GtkTreeViewColumn *column,
                                 PtkFileBrowser* file_browser );

static gboolean
on_location_view_button_press_event ( GtkTreeView* view,
                                      GdkEventButton* evt,
                                      PtkFileBrowser* file_browser );

/* Drag & Drop */

static void
on_folder_view_drag_data_received ( GtkWidget *widget,
                                    GdkDragContext *drag_context,
                                    gint x,
                                    gint y,
                                    GtkSelectionData *sel_data,
                                    guint info,
                                    guint time,
                                    gpointer user_data );

static void
on_folder_view_drag_data_get ( GtkWidget *widget,
                               GdkDragContext *drag_context,
                               GtkSelectionData *sel_data,
                               guint info,
                               guint time,
                               PtkFileBrowser *file_browser );

static void
on_folder_view_drag_begin ( GtkWidget *widget,
                            GdkDragContext *drag_context,
                            gpointer user_data );

static gboolean
on_folder_view_drag_motion ( GtkWidget *widget,
                             GdkDragContext *drag_context,
                             gint x,
                             gint y,
                             guint time,
                             PtkFileBrowser* file_browser );

static gboolean
on_folder_view_drag_leave ( GtkWidget *widget,
                            GdkDragContext *drag_context,
                            guint time,
                            PtkFileBrowser* file_browser );

static gboolean
on_folder_view_drag_drop ( GtkWidget *widget,
                           GdkDragContext *drag_context,
                           gint x,
                           gint y,
                           guint time,
                           PtkFileBrowser* file_browser );

static void
on_folder_view_drag_end ( GtkWidget *widget,
                          GdkDragContext *drag_context,
                          gpointer user_data );

/* Default signal handlers */
static void ptk_file_browser_before_chdir( PtkFileBrowser* file_browser,
                                           const char* path,
                                           gboolean* cancel );
static void ptk_file_browser_after_chdir( PtkFileBrowser* file_browser );
static void ptk_file_browser_content_change( PtkFileBrowser* file_browser );
static void ptk_file_browser_sel_change( PtkFileBrowser* file_browser );
static void ptk_file_browser_open_item( PtkFileBrowser* file_browser, const char* path, int action );
static void ptk_file_browser_pane_mode_change( PtkFileBrowser* file_browser );

static int
file_list_order_from_sort_order( FileBrowserSortOrder order );

static GtkPanedClass *parent_class = NULL;

enum {
    BEFORE_CHDIR_SIGNAL,
    AFTER_CHDIR_SIGNAL,
    OPEN_ITEM_SIGNAL,
    CONTENT_CHANGE_SIGNAL,
    SEL_CHANGE_SIGNAL,
    PANE_MODE_CHANGE_SIGNAL,
    N_SIGNALS
};

static guint signals[ N_SIGNALS ] = { 0 };

static guint folder_view_auto_scroll_timer = 0;
static GtkDirectionType folder_view_auto_scroll_direction = 0;

/*  Drag & Drop/Clipboard targets  */
static GtkTargetEntry drag_targets[] = {
                                           {"text/uri-list", 0 , 0 }
                                       };

GType ptk_file_browser_get_type()
{
    static GType type = G_TYPE_INVALID;
    if ( G_UNLIKELY ( type == G_TYPE_INVALID ) )
    {
        static const GTypeInfo info =
            {
                sizeof ( PtkFileBrowserClass ),
                NULL,
                NULL,
                ( GClassInitFunc ) ptk_file_browser_class_init,
                NULL,
                NULL,
                sizeof ( PtkFileBrowser ),
                0,
                ( GInstanceInitFunc ) ptk_file_browser_init,
                NULL,
            };
        type = g_type_register_static ( GTK_TYPE_HPANED, "PtkFileBrowser", &info, 0 );
    }
    return type;
}

void ptk_file_browser_class_init( PtkFileBrowserClass* klass )
{
    GObjectClass * object_class;
    GtkWidgetClass *widget_class;

    object_class = ( GObjectClass * ) klass;
    parent_class = g_type_class_peek_parent ( klass );

    object_class->set_property = ptk_file_browser_set_property;
    object_class->get_property = ptk_file_browser_get_property;
    object_class->finalize = ptk_file_browser_finalize;

    widget_class = GTK_WIDGET_CLASS ( klass );

    /* Signals */

    klass->before_chdir = ptk_file_browser_before_chdir;
    klass->after_chdir = ptk_file_browser_after_chdir;
    klass->open_item = ptk_file_browser_open_item;
    klass->content_change = ptk_file_browser_content_change;
    klass->sel_change = ptk_file_browser_sel_change;
    klass->pane_mode_change = ptk_file_browser_pane_mode_change;

    /* before-chdir is emitted when PtkFileBrowser is about to change
    * its working directory. The 1st param is the path of the dir (in UTF-8),
    * and the 2nd param is a gboolean*, which can be filled by the
    * signal handler with TRUE to cancel the operation.
    */
    signals[ BEFORE_CHDIR_SIGNAL ] =
        g_signal_new ( "before-chdir",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, before_chdir ),
                       NULL, NULL,
                       gtk_marshal_VOID__POINTER_POINTER,
                       G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER );

    signals[ AFTER_CHDIR_SIGNAL ] =
        g_signal_new ( "after-chdir",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, after_chdir ),
                       NULL, NULL,
                       g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0 );

    /*
    * This signal is sent when a directory is about to be opened
    * arg1 is the path to be opened, and arg2 is the type of action,
    * ex: open in tab, open in terminal...etc.
    */
    signals[ OPEN_ITEM_SIGNAL ] =
        g_signal_new ( "open-item",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, open_item ),
                       NULL, NULL,
                       gtk_marshal_VOID__POINTER_INT, G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_INT );

    signals[ CONTENT_CHANGE_SIGNAL ] =
        g_signal_new ( "content-change",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, content_change ),
                       NULL, NULL,
                       g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0 );

    signals[ SEL_CHANGE_SIGNAL ] =
        g_signal_new ( "sel-change",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, sel_change ),
                       NULL, NULL,
                       g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0 );

    signals[ PANE_MODE_CHANGE_SIGNAL ] =
        g_signal_new ( "pane-mode-change",
                       G_TYPE_FROM_CLASS ( klass ),
                       G_SIGNAL_RUN_LAST,
                       G_STRUCT_OFFSET ( PtkFileBrowserClass, pane_mode_change ),
                       NULL, NULL,
                       g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0 );

}

void ptk_file_browser_init( PtkFileBrowser* file_browser )
{
    file_browser->folder_view_scroll = gtk_scrolled_window_new ( NULL, NULL );
    gtk_paned_pack2 ( GTK_PANED ( file_browser ),
                      file_browser->folder_view_scroll, TRUE, TRUE );
    gtk_scrolled_window_set_policy ( GTK_SCROLLED_WINDOW ( file_browser->folder_view_scroll ),
                                     GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
    gtk_scrolled_window_set_shadow_type ( GTK_SCROLLED_WINDOW ( file_browser->folder_view_scroll ),