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wpe: Add 'run-javascript' action signal

Browse source 
Introduce way of running a script in the context of the internal
webView.

Fixes #1722

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3753>
This commit is contained in:
Jonas Danielsson 2023-01-19 15:24:05 +01:00 committed by GStreamer Marge Bot
parent e2773304a2
commit 8eeaeab6af
4 changed files with 73 additions and 0 deletions
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21
subprojects/gst-plugins-bad/ext/wpe/WPEThreadedView.cpp
View file

@ -695,6 +695,27 @@ void WPEView::loadUri(const gchar* uri)
});
}
static void s_runJavascriptFinished(GObject* object, GAsyncResult* result, gpointer user_data)
{
WebKitJavascriptResult* js_result;
GError* error = NULL;
js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object), result, &error);
if (!js_result) {
GST_WARNING("Error running javascript: %s", error->message);
g_error_free(error);
return;
}
webkit_javascript_result_unref(js_result);
}
void WPEView::runJavascript(const char* script)
{
s_view->dispatch([&]() {
webkit_web_view_run_javascript(webkit.view, script, nullptr, s_runJavascriptFinished, nullptr);
});
}
void WPEView::loadData(GBytes* bytes)
{
s_view->dispatch([this, bytes = g_bytes_ref(bytes)]() {

1
subprojects/gst-plugins-bad/ext/wpe/WPEThreadedView.h
View file

@ -43,6 +43,7 @@ public:
void resize(int width, int height);
void loadUri(const gchar*);
void loadData(GBytes*);
void runJavascript(const gchar*);
void setDrawBackground(gboolean);
GstEGLImage* image();

25
subprojects/gst-plugins-bad/ext/wpe/gstwpesrcbin.cpp
View file

@ -150,6 +150,7 @@ enum
enum
{
SIGNAL_LOAD_BYTES,
SIGNAL_RUN_JAVASCRIPT,
LAST_SIGNAL
};
@ -341,6 +342,15 @@ gst_wpe_src_load_bytes (GstWpeVideoSrc * src, GBytes * bytes)
g_signal_emit_by_name (self->video_src, "load-bytes", bytes, NULL);
}
static void
gst_wpe_src_run_javascript (GstWpeVideoSrc * src, const gchar * script)
{
GstWpeSrc *self = GST_WPE_SRC (src);
if (self->video_src)
g_signal_emit_by_name (self->video_src, "run-javascript", script, NULL);
}
static void
gst_wpe_src_set_location (GstWpeSrc * src, const gchar * location)
{
@ -542,6 +552,21 @@ gst_wpe_src_class_init (GstWpeSrcClass * klass)
G_CALLBACK (gst_wpe_src_load_bytes), NULL, NULL, NULL, G_TYPE_NONE, 1,
G_TYPE_BYTES);
/**
* GstWpeSrc::run-javascript:
* @src: the object which received the signal
* @script: the script to run
*
* Asynchronously run script in the context of the current page on the
* internal webView.
*
* Since: 1.22
*/
gst_wpe_video_src_signals[SIGNAL_RUN_JAVASCRIPT] =
g_signal_new_class_handler ("run-javascript", G_TYPE_FROM_CLASS (klass),
static_cast < GSignalFlags > (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
G_CALLBACK (gst_wpe_src_run_javascript), NULL, NULL, NULL, G_TYPE_NONE, 1,
G_TYPE_STRING);
element_class->change_state = GST_DEBUG_FUNCPTR (gst_wpe_src_change_state);
gst_element_class_add_static_pad_template (element_class, &video_src_factory);

26
subprojects/gst-plugins-bad/ext/wpe/gstwpevideosrc.cpp
View file

@ -111,6 +111,7 @@ enum
{
SIGNAL_CONFIGURE_WEB_VIEW,
SIGNAL_LOAD_BYTES,
SIGNAL_RUN_JAVASCRIPT,
LAST_SIGNAL
};
static guint gst_wpe_video_src_signals[LAST_SIGNAL] = { 0 };
@ -459,6 +460,15 @@ gst_wpe_video_src_configure_web_view (GstWpeVideoSrc * src,
g_value_unset (&args[1]);
}
static void
gst_wpe_video_src_run_javascript (GstWpeVideoSrc * src, const gchar * script)
{
if (src->view && GST_STATE (GST_ELEMENT_CAST (src)) > GST_STATE_NULL) {
GST_INFO_OBJECT (src, "running javascript");
src->view->runJavascript (script);
}
}
static void
gst_wpe_video_src_load_bytes (GstWpeVideoSrc * src, GBytes * bytes)
{
@ -879,4 +889,20 @@ gst_wpe_video_src_class_init (GstWpeVideoSrcClass * klass)
static_cast < GSignalFlags > (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
G_CALLBACK (gst_wpe_video_src_load_bytes), NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_BYTES);
/**
* GstWpeSrc::run-javascript:
* @src: the object which received the signal
* @script: the script to run
*
* Asynchronously run script in the context of the current page on the
* internal webView.
*
* Since: 1.22
*/
gst_wpe_video_src_signals[SIGNAL_RUN_JAVASCRIPT] =
g_signal_new_class_handler ("run-javascript", G_TYPE_FROM_CLASS (klass),
static_cast < GSignalFlags > (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
G_CALLBACK (gst_wpe_video_src_run_javascript), NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_STRING);
}