WebKit的GTK ::当下载完成后如何检测? [英] Webkit GTK :: How to detect when a download has finished?
问题描述
我不知道是否有一种方法,当webkitdownload已无误地完成知道。我使用的是C API。我希望的信号将被发射(类似于一个下载开始时),然而,这好像是并非如此。
I was wondering if there is a way to know when a webkitdownload has finished without error. I am using the C API. I was hoping a signal would be emitted (similar to when a download starts), however this seems to be not the case.
搜索WebKit的API指数,我认为没有信号,它可以培训相关:
http://webkitgtk.org/reference/index-all.html
Searching the webkit API index, i see no signal which could be relevent: http://webkitgtk.org/reference/index-all.html
我必须真的轮询每个WebKit的下载,直到它完成?
Must I really poll each webkit download until it has finished?
干杯
推荐答案
有当下载完成后,获取发出的信号。该信号是WebKitWebView负载成品,还可以监控的负载状态属性更改仍然在对象WebKitWebView。
There's a signal that gets emitted when a download is complete. The signal is WebKitWebView "load-finished", you can also monitor the property changes of "load-status" still in the object WebKitWebView.
下面的C code向您介绍如何:
The following C code shows you how to:
#include <gtk/gtk.h>
#include <webkit/webkit.h>
static void destroy_cb(GtkWidget* widget, gpointer data) {
gtk_main_quit();
}
static void load_finished_cb(WebKitWebView *web_view, WebKitWebFrame *web_frame, gpointer data) {
printf("Finished downloading %s\n", webkit_web_view_get_uri(web_view));
}
static void load_status_cb(GObject* object, GParamSpec* pspec, gpointer data) {
WebKitWebView *web_view;
WebKitLoadStatus status;
const gchar *uri;
web_view = WEBKIT_WEB_VIEW(object);
status = webkit_web_view_get_load_status(web_view);
uri = webkit_web_view_get_uri(web_view);
switch (status) {
case WEBKIT_LOAD_PROVISIONAL:
printf("Load provisional: %s\n", uri);
break;
case WEBKIT_LOAD_COMMITTED:
printf("Load commited: %s\n", uri);
break;
case WEBKIT_LOAD_FIRST_VISUALLY_NON_EMPTY_LAYOUT:
printf("Load first visually non empty layout: %s\n", uri);
break;
case WEBKIT_LOAD_FINISHED:
printf("Load finished: %s\n", uri);
break;
default:
g_assert_not_reached();
}
}
int main(int argc, char* argv[]) {
const char *uri;
GtkWidget* window;
WebKitWebView* web_view;
gtk_init(&argc, &argv);
if (argc == 1) {
printf("Usage: URI\n");
return 1;
}
uri = argv[1];
if(!g_thread_supported())
g_thread_init(NULL);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(window), 600, 400);
g_signal_connect(window, "destroy", G_CALLBACK(destroy_cb), NULL);
web_view = web_view = WEBKIT_WEB_VIEW(webkit_web_view_new());
webkit_web_view_set_transparent(web_view, TRUE);
/* Register a callback that gets invoked each time that a page is finished downloading */
g_signal_connect(web_view, "load-finished", G_CALLBACK(load_finished_cb), NULL);
/* Register a callback that gets invoked each time that the load status changes */
g_object_connect(web_view, "signal::notify::load-status", G_CALLBACK(load_status_cb), NULL);
webkit_web_view_load_uri(web_view, uri);
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(web_view));
gtk_widget_grab_focus(GTK_WIDGET(web_view));
gtk_widget_show_all(window);
gtk_main();
return 0;
}
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