download.h File Reference

#include "main.h"

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Functions
G_BEGIN_DECLS gboolean	download_requested_cb (WebKitWebView *web_view, WebKitDownload *download, BrowserWindow *browser_window)

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Function Documentation

G_BEGIN_DECLS gboolean download_requested_cb	(	WebKitWebView *	web_view,
		WebKitDownload *	download,
		BrowserWindow *	browser_window
	)

File Name : download.h

Description: File download Copyright (C) 2009 iRex Technologies B.V. All rights reserved.

Definition at line 120 of file download.c.

References add_folder_to_metadata(), box_spacing, _DowloadDialog::browser_window, _DowloadDialog::button, _DowloadDialog::download, download_button_cancel_cb(), download_destroy_cb(), download_error_cb(), download_folder, download_response_cb(), download_status_changed_cb(), ERRORPRINTF, filename, g_mountpoint, g_update_progress, ipc_sys_bg_busy(), is_local_file(), LOGPRINTF, make_unique_filename(), _DowloadDialog::progress_bar, progress_interval, update_progress_cb(), _DowloadDialog::uri_label, uri_label_width, view_show_error(), widget, and _DowloadDialog::window.

Referenced by create_web_view().

{
    LOGPRINTF("entry window [%p]", browser_window);
    
    DownloadDialog *dialog = NULL;

    if (is_local_file(webkit_download_get_uri(download))) 
    {
        LOGPRINTF("You could open the file [%s] without transferring it", webkit_download_get_uri(download));
        
        gchar *title;
        title = g_strdup_printf(_("Unable to open %s"), webkit_download_get_uri(download));
        view_show_error(title, _("The web browser is unable to display the document. "
                                 "Since it is on the SD card, you can open it from Documents."));
        g_free(title);
        return FALSE;
    }
    
    if (!g_mountpoint)
    {
        ERRORPRINTF("No mountpoint, cannot download");
        
        // Webkit will continue loading which ends in an error
        // so stop here. This may be an error in Webkit. 
        webkit_web_view_stop_loading(web_view);

        GtkWidget *widget;    
        widget = gtk_message_dialog_new(GTK_WINDOW(browser_window->window),
                                    GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                                    GTK_MESSAGE_WARNING,
                                    GTK_BUTTONS_OK,
                                    _("The download cannot be started because there is no SD card in this device. "
                                      "Please insert a card and try again."));
    
        gtk_dialog_run(GTK_DIALOG(widget));
        gtk_widget_destroy(widget);
            
        return FALSE;
    }
    

    // check uri
    gchar *extension = g_strrstr(webkit_download_get_suggested_filename(download),".");
    if (extension && (strncmp(extension, ".acsm", 5) == 0))
    {
        LOGPRINTF("found .acsm file, download and open with Adobe Fullfilment");
        browser_window->open_download = TRUE;
    }
        
    // create path for download
    gchar *download_path;
#if MACHINE_IS_DR800SG || MACHINE_IS_DR800SW
    if (browser_window->open_download)
    {
        LOGPRINTF("open_download, set temp path");
        download_path = g_strdup(g_get_tmp_dir());
    }
    else
#endif        
    {
        download_path = g_build_path("/", g_mountpoint, download_folder, NULL);
    
        // create and add download directory when necessary
        if (!g_file_test(download_path, G_FILE_TEST_IS_DIR))
        {
            if (g_mkdir_with_parents(download_path, 0777) >= 0)
            {
                add_folder_to_metadata(g_mountpoint, download_folder);
            }
        }
        
        if (!g_file_test(download_path, G_FILE_TEST_IS_DIR))
        {
            ERRORPRINTF("Failed to create %s, error [%d] [%s]", download_path, errno, g_strerror(errno));

            // Webkit will continue loading which ends in an error
            // so stop here. This may be an error in Webkit. 
            webkit_web_view_stop_loading(web_view);
            
            GtkWidget *widget;    
            widget = gtk_message_dialog_new(GTK_WINDOW(browser_window->window),
                                        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                                        GTK_MESSAGE_WARNING,
                                        GTK_BUTTONS_OK,
                                        _("An error has occurred while saving the file to the SD card. It is possible the card is full or locked."));

            gtk_dialog_run(GTK_DIALOG(widget));
            gtk_widget_destroy(widget);
            
            g_free(download_path);
            return FALSE;
        }
    }
    
    // create download filename
    gchar *filename = make_unique_filename(download_path, webkit_download_get_suggested_filename(download));

    dialog = g_new0(DownloadDialog, 1);
    dialog->browser_window = browser_window;
    dialog->download       = g_object_ref(download);
    
    // object hierarchy:
    //     dialog
    //       |    
    dialog->window = gtk_dialog_new_with_buttons(_("Download Progress"),
                         GTK_WINDOW(browser_window->window), 
                         GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
                         NULL);
    gtk_box_set_spacing(GTK_BOX(GTK_DIALOG(dialog->window)->vbox), box_spacing);
    //       |
    //       |-- uri_label (label)
    //       |    
    gchar *message;
    dialog->uri_label = gtk_label_new(NULL);
    message = g_strdup_printf(_("Downloading '%s'..."), filename);
    gtk_label_set_label(GTK_LABEL(dialog->uri_label), message);
    gtk_label_set_line_wrap(GTK_LABEL(dialog->uri_label), TRUE);
    gtk_widget_set_size_request(dialog->uri_label, uri_label_width, -1);
    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog->window)->vbox), dialog->uri_label, FALSE, FALSE, 0);
    g_free(message);
    //       |
    //       |-- progress_bar (progress bar)
    //       |    
    dialog->progress_bar = gtk_progress_bar_new();         
    gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(dialog->progress_bar), GTK_PROGRESS_LEFT_TO_RIGHT);
    gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(dialog->progress_bar), 0.0); 
    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog->window)->vbox), dialog->progress_bar, FALSE, FALSE, 0);
    //       |
    //       |-- button_box (hbutton box)
    //       |    
    GtkWidget *button_box = gtk_hbutton_box_new();
    GTK_DIALOG(dialog->window)->action_area = button_box;
    gtk_button_box_set_layout(GTK_BUTTON_BOX(button_box), GTK_BUTTONBOX_END);
    dialog->button = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
    g_signal_connect(G_OBJECT(dialog->button), "clicked", G_CALLBACK(download_button_cancel_cb), dialog);
    gtk_box_pack_start(GTK_BOX(button_box), dialog->button, FALSE, FALSE, 0);
    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog->window)->vbox), button_box, FALSE, FALSE, 0);
    
    gtk_widget_show_all(GTK_WIDGET(dialog->window));

    // create URI for download target
    gchar *local_uri = NULL;
    local_uri = g_strconcat("file://", filename, NULL);
    
    LOGPRINTF("Download file to [%s]", local_uri);
    
    webkit_download_set_destination_uri(dialog->download, local_uri);
    g_free(local_uri);
    g_free(download_path);
    g_free(filename);
    
    g_signal_connect(dialog->window, "close",               G_CALLBACK(download_destroy_cb), dialog);
    g_signal_connect(dialog->window, "response",            G_CALLBACK(download_response_cb), dialog);
    
    g_signal_connect(G_OBJECT(download), "error",           G_CALLBACK(download_error_cb), dialog);
    g_signal_connect(G_OBJECT(download), "notify::status",  G_CALLBACK(download_status_changed_cb), dialog);
    
    // schedule next update after n seconds
    g_update_progress = g_timeout_add_seconds(progress_interval, update_progress_cb, dialog);
    
    ipc_sys_bg_busy(TRUE);

    return TRUE;
}

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